diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_display.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_display.c | 8007 |
1 files changed, 8007 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c new file mode 100644 index 000000000..a072fbb98 --- /dev/null +++ b/drivers/gpu/drm/i915/display/intel_display.c @@ -0,0 +1,8007 @@ +/* + * Copyright © 2006-2007 Intel Corporation + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice (including the next + * paragraph) shall be included in all copies or substantial portions of the + * Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR + * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER + * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING + * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER + * DEALINGS IN THE SOFTWARE. + * + * Authors: + * Eric Anholt <eric@anholt.net> + */ + +#include <linux/dma-resv.h> +#include <linux/i2c.h> +#include <linux/input.h> +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/slab.h> +#include <linux/string_helpers.h> + +#include <drm/display/drm_dp_helper.h> +#include <drm/drm_atomic.h> +#include <drm/drm_atomic_helper.h> +#include <drm/drm_atomic_uapi.h> +#include <drm/drm_damage_helper.h> +#include <drm/drm_edid.h> +#include <drm/drm_fourcc.h> +#include <drm/drm_probe_helper.h> +#include <drm/drm_rect.h> + +#include "gem/i915_gem_lmem.h" +#include "gem/i915_gem_object.h" + +#include "g4x_dp.h" +#include "g4x_hdmi.h" +#include "hsw_ips.h" +#include "i915_drv.h" +#include "i915_reg.h" +#include "i915_utils.h" +#include "i9xx_plane.h" +#include "i9xx_wm.h" +#include "intel_atomic.h" +#include "intel_atomic_plane.h" +#include "intel_audio.h" +#include "intel_bw.h" +#include "intel_cdclk.h" +#include "intel_clock_gating.h" +#include "intel_color.h" +#include "intel_crt.h" +#include "intel_crtc.h" +#include "intel_crtc_state_dump.h" +#include "intel_ddi.h" +#include "intel_de.h" +#include "intel_display_driver.h" +#include "intel_display_power.h" +#include "intel_display_types.h" +#include "intel_dmc.h" +#include "intel_dp.h" +#include "intel_dp_link_training.h" +#include "intel_dp_mst.h" +#include "intel_dpio_phy.h" +#include "intel_dpll.h" +#include "intel_dpll_mgr.h" +#include "intel_dpt.h" +#include "intel_drrs.h" +#include "intel_dsi.h" +#include "intel_dvo.h" +#include "intel_fb.h" +#include "intel_fbc.h" +#include "intel_fbdev.h" +#include "intel_fdi.h" +#include "intel_fifo_underrun.h" +#include "intel_frontbuffer.h" +#include "intel_hdmi.h" +#include "intel_hotplug.h" +#include "intel_lvds.h" +#include "intel_lvds_regs.h" +#include "intel_modeset_setup.h" +#include "intel_modeset_verify.h" +#include "intel_overlay.h" +#include "intel_panel.h" +#include "intel_pch_display.h" +#include "intel_pch_refclk.h" +#include "intel_pcode.h" +#include "intel_pipe_crc.h" +#include "intel_plane_initial.h" +#include "intel_pmdemand.h" +#include "intel_pps.h" +#include "intel_psr.h" +#include "intel_sdvo.h" +#include "intel_snps_phy.h" +#include "intel_tc.h" +#include "intel_tv.h" +#include "intel_vblank.h" +#include "intel_vdsc.h" +#include "intel_vdsc_regs.h" +#include "intel_vga.h" +#include "intel_vrr.h" +#include "intel_wm.h" +#include "skl_scaler.h" +#include "skl_universal_plane.h" +#include "skl_watermark.h" +#include "vlv_dsi.h" +#include "vlv_dsi_pll.h" +#include "vlv_dsi_regs.h" +#include "vlv_sideband.h" + +static void intel_set_transcoder_timings(const struct intel_crtc_state *crtc_state); +static void intel_set_pipe_src_size(const struct intel_crtc_state *crtc_state); +static void hsw_set_transconf(const struct intel_crtc_state *crtc_state); +static void bdw_set_pipe_misc(const struct intel_crtc_state *crtc_state); + +/* returns HPLL frequency in kHz */ +int vlv_get_hpll_vco(struct drm_i915_private *dev_priv) +{ + int hpll_freq, vco_freq[] = { 800, 1600, 2000, 2400 }; + + /* Obtain SKU information */ + hpll_freq = vlv_cck_read(dev_priv, CCK_FUSE_REG) & + CCK_FUSE_HPLL_FREQ_MASK; + + return vco_freq[hpll_freq] * 1000; +} + +int vlv_get_cck_clock(struct drm_i915_private *dev_priv, + const char *name, u32 reg, int ref_freq) +{ + u32 val; + int divider; + + val = vlv_cck_read(dev_priv, reg); + divider = val & CCK_FREQUENCY_VALUES; + + drm_WARN(&dev_priv->drm, (val & CCK_FREQUENCY_STATUS) != + (divider << CCK_FREQUENCY_STATUS_SHIFT), + "%s change in progress\n", name); + + return DIV_ROUND_CLOSEST(ref_freq << 1, divider + 1); +} + +int vlv_get_cck_clock_hpll(struct drm_i915_private *dev_priv, + const char *name, u32 reg) +{ + int hpll; + + vlv_cck_get(dev_priv); + + if (dev_priv->hpll_freq == 0) + dev_priv->hpll_freq = vlv_get_hpll_vco(dev_priv); + + hpll = vlv_get_cck_clock(dev_priv, name, reg, dev_priv->hpll_freq); + + vlv_cck_put(dev_priv); + + return hpll; +} + +void intel_update_czclk(struct drm_i915_private *dev_priv) +{ + if (!(IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))) + return; + + dev_priv->czclk_freq = vlv_get_cck_clock_hpll(dev_priv, "czclk", + CCK_CZ_CLOCK_CONTROL); + + drm_dbg(&dev_priv->drm, "CZ clock rate: %d kHz\n", + dev_priv->czclk_freq); +} + +static bool is_hdr_mode(const struct intel_crtc_state *crtc_state) +{ + return (crtc_state->active_planes & + ~(icl_hdr_plane_mask() | BIT(PLANE_CURSOR))) == 0; +} + +/* WA Display #0827: Gen9:all */ +static void +skl_wa_827(struct drm_i915_private *dev_priv, enum pipe pipe, bool enable) +{ + if (enable) + intel_de_rmw(dev_priv, CLKGATE_DIS_PSL(pipe), + 0, DUPS1_GATING_DIS | DUPS2_GATING_DIS); + else + intel_de_rmw(dev_priv, CLKGATE_DIS_PSL(pipe), + DUPS1_GATING_DIS | DUPS2_GATING_DIS, 0); +} + +/* Wa_2006604312:icl,ehl */ +static void +icl_wa_scalerclkgating(struct drm_i915_private *dev_priv, enum pipe pipe, + bool enable) +{ + if (enable) + intel_de_rmw(dev_priv, CLKGATE_DIS_PSL(pipe), 0, DPFR_GATING_DIS); + else + intel_de_rmw(dev_priv, CLKGATE_DIS_PSL(pipe), DPFR_GATING_DIS, 0); +} + +/* Wa_1604331009:icl,jsl,ehl */ +static void +icl_wa_cursorclkgating(struct drm_i915_private *dev_priv, enum pipe pipe, + bool enable) +{ + intel_de_rmw(dev_priv, CLKGATE_DIS_PSL(pipe), CURSOR_GATING_DIS, + enable ? CURSOR_GATING_DIS : 0); +} + +static bool +is_trans_port_sync_slave(const struct intel_crtc_state *crtc_state) +{ + return crtc_state->master_transcoder != INVALID_TRANSCODER; +} + +bool +is_trans_port_sync_master(const struct intel_crtc_state *crtc_state) +{ + return crtc_state->sync_mode_slaves_mask != 0; +} + +bool +is_trans_port_sync_mode(const struct intel_crtc_state *crtc_state) +{ + return is_trans_port_sync_master(crtc_state) || + is_trans_port_sync_slave(crtc_state); +} + +static enum pipe bigjoiner_master_pipe(const struct intel_crtc_state *crtc_state) +{ + return ffs(crtc_state->bigjoiner_pipes) - 1; +} + +u8 intel_crtc_bigjoiner_slave_pipes(const struct intel_crtc_state *crtc_state) +{ + if (crtc_state->bigjoiner_pipes) + return crtc_state->bigjoiner_pipes & ~BIT(bigjoiner_master_pipe(crtc_state)); + else + return 0; +} + +bool intel_crtc_is_bigjoiner_slave(const struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + + return crtc_state->bigjoiner_pipes && + crtc->pipe != bigjoiner_master_pipe(crtc_state); +} + +bool intel_crtc_is_bigjoiner_master(const struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + + return crtc_state->bigjoiner_pipes && + crtc->pipe == bigjoiner_master_pipe(crtc_state); +} + +static int intel_bigjoiner_num_pipes(const struct intel_crtc_state *crtc_state) +{ + return hweight8(crtc_state->bigjoiner_pipes); +} + +struct intel_crtc *intel_master_crtc(const struct intel_crtc_state *crtc_state) +{ + struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev); + + if (intel_crtc_is_bigjoiner_slave(crtc_state)) + return intel_crtc_for_pipe(i915, bigjoiner_master_pipe(crtc_state)); + else + return to_intel_crtc(crtc_state->uapi.crtc); +} + +static void +intel_wait_for_pipe_off(const struct intel_crtc_state *old_crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(old_crtc_state->uapi.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + + if (DISPLAY_VER(dev_priv) >= 4) { + enum transcoder cpu_transcoder = old_crtc_state->cpu_transcoder; + + /* Wait for the Pipe State to go off */ + if (intel_de_wait_for_clear(dev_priv, TRANSCONF(cpu_transcoder), + TRANSCONF_STATE_ENABLE, 100)) + drm_WARN(&dev_priv->drm, 1, "pipe_off wait timed out\n"); + } else { + intel_wait_for_pipe_scanline_stopped(crtc); + } +} + +void assert_transcoder(struct drm_i915_private *dev_priv, + enum transcoder cpu_transcoder, bool state) +{ + bool cur_state; + enum intel_display_power_domain power_domain; + intel_wakeref_t wakeref; + + /* we keep both pipes enabled on 830 */ + if (IS_I830(dev_priv)) + state = true; + + power_domain = POWER_DOMAIN_TRANSCODER(cpu_transcoder); + wakeref = intel_display_power_get_if_enabled(dev_priv, power_domain); + if (wakeref) { + u32 val = intel_de_read(dev_priv, TRANSCONF(cpu_transcoder)); + cur_state = !!(val & TRANSCONF_ENABLE); + + intel_display_power_put(dev_priv, power_domain, wakeref); + } else { + cur_state = false; + } + + I915_STATE_WARN(dev_priv, cur_state != state, + "transcoder %s assertion failure (expected %s, current %s)\n", + transcoder_name(cpu_transcoder), str_on_off(state), + str_on_off(cur_state)); +} + +static void assert_plane(struct intel_plane *plane, bool state) +{ + struct drm_i915_private *i915 = to_i915(plane->base.dev); + enum pipe pipe; + bool cur_state; + + cur_state = plane->get_hw_state(plane, &pipe); + + I915_STATE_WARN(i915, cur_state != state, + "%s assertion failure (expected %s, current %s)\n", + plane->base.name, str_on_off(state), + str_on_off(cur_state)); +} + +#define assert_plane_enabled(p) assert_plane(p, true) +#define assert_plane_disabled(p) assert_plane(p, false) + +static void assert_planes_disabled(struct intel_crtc *crtc) +{ + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + struct intel_plane *plane; + + for_each_intel_plane_on_crtc(&dev_priv->drm, crtc, plane) + assert_plane_disabled(plane); +} + +void vlv_wait_port_ready(struct drm_i915_private *dev_priv, + struct intel_digital_port *dig_port, + unsigned int expected_mask) +{ + u32 port_mask; + i915_reg_t dpll_reg; + + switch (dig_port->base.port) { + default: + MISSING_CASE(dig_port->base.port); + fallthrough; + case PORT_B: + port_mask = DPLL_PORTB_READY_MASK; + dpll_reg = DPLL(0); + break; + case PORT_C: + port_mask = DPLL_PORTC_READY_MASK; + dpll_reg = DPLL(0); + expected_mask <<= 4; + break; + case PORT_D: + port_mask = DPLL_PORTD_READY_MASK; + dpll_reg = DPIO_PHY_STATUS; + break; + } + + if (intel_de_wait_for_register(dev_priv, dpll_reg, + port_mask, expected_mask, 1000)) + drm_WARN(&dev_priv->drm, 1, + "timed out waiting for [ENCODER:%d:%s] port ready: got 0x%x, expected 0x%x\n", + dig_port->base.base.base.id, dig_port->base.base.name, + intel_de_read(dev_priv, dpll_reg) & port_mask, + expected_mask); +} + +void intel_enable_transcoder(const struct intel_crtc_state *new_crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(new_crtc_state->uapi.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + enum transcoder cpu_transcoder = new_crtc_state->cpu_transcoder; + enum pipe pipe = crtc->pipe; + i915_reg_t reg; + u32 val; + + drm_dbg_kms(&dev_priv->drm, "enabling pipe %c\n", pipe_name(pipe)); + + assert_planes_disabled(crtc); + + /* + * A pipe without a PLL won't actually be able to drive bits from + * a plane. On ILK+ the pipe PLLs are integrated, so we don't + * need the check. + */ + if (HAS_GMCH(dev_priv)) { + if (intel_crtc_has_type(new_crtc_state, INTEL_OUTPUT_DSI)) + assert_dsi_pll_enabled(dev_priv); + else + assert_pll_enabled(dev_priv, pipe); + } else { + if (new_crtc_state->has_pch_encoder) { + /* if driving the PCH, we need FDI enabled */ + assert_fdi_rx_pll_enabled(dev_priv, + intel_crtc_pch_transcoder(crtc)); + assert_fdi_tx_pll_enabled(dev_priv, + (enum pipe) cpu_transcoder); + } + /* FIXME: assert CPU port conditions for SNB+ */ + } + + /* Wa_22012358565:adl-p */ + if (DISPLAY_VER(dev_priv) == 13) + intel_de_rmw(dev_priv, PIPE_ARB_CTL(pipe), + 0, PIPE_ARB_USE_PROG_SLOTS); + + reg = TRANSCONF(cpu_transcoder); + val = intel_de_read(dev_priv, reg); + if (val & TRANSCONF_ENABLE) { + /* we keep both pipes enabled on 830 */ + drm_WARN_ON(&dev_priv->drm, !IS_I830(dev_priv)); + return; + } + + intel_de_write(dev_priv, reg, val | TRANSCONF_ENABLE); + intel_de_posting_read(dev_priv, reg); + + /* + * Until the pipe starts PIPEDSL reads will return a stale value, + * which causes an apparent vblank timestamp jump when PIPEDSL + * resets to its proper value. That also messes up the frame count + * when it's derived from the timestamps. So let's wait for the + * pipe to start properly before we call drm_crtc_vblank_on() + */ + if (intel_crtc_max_vblank_count(new_crtc_state) == 0) + intel_wait_for_pipe_scanline_moving(crtc); +} + +void intel_disable_transcoder(const struct intel_crtc_state *old_crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(old_crtc_state->uapi.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + enum transcoder cpu_transcoder = old_crtc_state->cpu_transcoder; + enum pipe pipe = crtc->pipe; + i915_reg_t reg; + u32 val; + + drm_dbg_kms(&dev_priv->drm, "disabling pipe %c\n", pipe_name(pipe)); + + /* + * Make sure planes won't keep trying to pump pixels to us, + * or we might hang the display. + */ + assert_planes_disabled(crtc); + + reg = TRANSCONF(cpu_transcoder); + val = intel_de_read(dev_priv, reg); + if ((val & TRANSCONF_ENABLE) == 0) + return; + + /* + * Double wide has implications for planes + * so best keep it disabled when not needed. + */ + if (old_crtc_state->double_wide) + val &= ~TRANSCONF_DOUBLE_WIDE; + + /* Don't disable pipe or pipe PLLs if needed */ + if (!IS_I830(dev_priv)) + val &= ~TRANSCONF_ENABLE; + + if (DISPLAY_VER(dev_priv) >= 14) + intel_de_rmw(dev_priv, MTL_CHICKEN_TRANS(cpu_transcoder), + FECSTALL_DIS_DPTSTREAM_DPTTG, 0); + else if (DISPLAY_VER(dev_priv) >= 12) + intel_de_rmw(dev_priv, CHICKEN_TRANS(cpu_transcoder), + FECSTALL_DIS_DPTSTREAM_DPTTG, 0); + + intel_de_write(dev_priv, reg, val); + if ((val & TRANSCONF_ENABLE) == 0) + intel_wait_for_pipe_off(old_crtc_state); +} + +unsigned int intel_rotation_info_size(const struct intel_rotation_info *rot_info) +{ + unsigned int size = 0; + int i; + + for (i = 0 ; i < ARRAY_SIZE(rot_info->plane); i++) + size += rot_info->plane[i].dst_stride * rot_info->plane[i].width; + + return size; +} + +unsigned int intel_remapped_info_size(const struct intel_remapped_info *rem_info) +{ + unsigned int size = 0; + int i; + + for (i = 0 ; i < ARRAY_SIZE(rem_info->plane); i++) { + unsigned int plane_size; + + if (rem_info->plane[i].linear) + plane_size = rem_info->plane[i].size; + else + plane_size = rem_info->plane[i].dst_stride * rem_info->plane[i].height; + + if (plane_size == 0) + continue; + + if (rem_info->plane_alignment) + size = ALIGN(size, rem_info->plane_alignment); + + size += plane_size; + } + + return size; +} + +bool intel_plane_uses_fence(const struct intel_plane_state *plane_state) +{ + struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane); + struct drm_i915_private *dev_priv = to_i915(plane->base.dev); + + return DISPLAY_VER(dev_priv) < 4 || + (plane->fbc && + plane_state->view.gtt.type == I915_GTT_VIEW_NORMAL); +} + +/* + * Convert the x/y offsets into a linear offset. + * Only valid with 0/180 degree rotation, which is fine since linear + * offset is only used with linear buffers on pre-hsw and tiled buffers + * with gen2/3, and 90/270 degree rotations isn't supported on any of them. + */ +u32 intel_fb_xy_to_linear(int x, int y, + const struct intel_plane_state *state, + int color_plane) +{ + const struct drm_framebuffer *fb = state->hw.fb; + unsigned int cpp = fb->format->cpp[color_plane]; + unsigned int pitch = state->view.color_plane[color_plane].mapping_stride; + + return y * pitch + x * cpp; +} + +/* + * Add the x/y offsets derived from fb->offsets[] to the user + * specified plane src x/y offsets. The resulting x/y offsets + * specify the start of scanout from the beginning of the gtt mapping. + */ +void intel_add_fb_offsets(int *x, int *y, + const struct intel_plane_state *state, + int color_plane) + +{ + *x += state->view.color_plane[color_plane].x; + *y += state->view.color_plane[color_plane].y; +} + +u32 intel_plane_fb_max_stride(struct drm_i915_private *dev_priv, + u32 pixel_format, u64 modifier) +{ + struct intel_crtc *crtc; + struct intel_plane *plane; + + if (!HAS_DISPLAY(dev_priv)) + return 0; + + /* + * We assume the primary plane for pipe A has + * the highest stride limits of them all, + * if in case pipe A is disabled, use the first pipe from pipe_mask. + */ + crtc = intel_first_crtc(dev_priv); + if (!crtc) + return 0; + + plane = to_intel_plane(crtc->base.primary); + + return plane->max_stride(plane, pixel_format, modifier, + DRM_MODE_ROTATE_0); +} + +void intel_set_plane_visible(struct intel_crtc_state *crtc_state, + struct intel_plane_state *plane_state, + bool visible) +{ + struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane); + + plane_state->uapi.visible = visible; + + if (visible) + crtc_state->uapi.plane_mask |= drm_plane_mask(&plane->base); + else + crtc_state->uapi.plane_mask &= ~drm_plane_mask(&plane->base); +} + +void intel_plane_fixup_bitmasks(struct intel_crtc_state *crtc_state) +{ + struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev); + struct drm_plane *plane; + + /* + * Active_planes aliases if multiple "primary" or cursor planes + * have been used on the same (or wrong) pipe. plane_mask uses + * unique ids, hence we can use that to reconstruct active_planes. + */ + crtc_state->enabled_planes = 0; + crtc_state->active_planes = 0; + + drm_for_each_plane_mask(plane, &dev_priv->drm, + crtc_state->uapi.plane_mask) { + crtc_state->enabled_planes |= BIT(to_intel_plane(plane)->id); + crtc_state->active_planes |= BIT(to_intel_plane(plane)->id); + } +} + +void intel_plane_disable_noatomic(struct intel_crtc *crtc, + struct intel_plane *plane) +{ + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + struct intel_crtc_state *crtc_state = + to_intel_crtc_state(crtc->base.state); + struct intel_plane_state *plane_state = + to_intel_plane_state(plane->base.state); + + drm_dbg_kms(&dev_priv->drm, + "Disabling [PLANE:%d:%s] on [CRTC:%d:%s]\n", + plane->base.base.id, plane->base.name, + crtc->base.base.id, crtc->base.name); + + intel_set_plane_visible(crtc_state, plane_state, false); + intel_plane_fixup_bitmasks(crtc_state); + crtc_state->data_rate[plane->id] = 0; + crtc_state->data_rate_y[plane->id] = 0; + crtc_state->rel_data_rate[plane->id] = 0; + crtc_state->rel_data_rate_y[plane->id] = 0; + crtc_state->min_cdclk[plane->id] = 0; + + if ((crtc_state->active_planes & ~BIT(PLANE_CURSOR)) == 0 && + hsw_ips_disable(crtc_state)) { + crtc_state->ips_enabled = false; + intel_crtc_wait_for_next_vblank(crtc); + } + + /* + * Vblank time updates from the shadow to live plane control register + * are blocked if the memory self-refresh mode is active at that + * moment. So to make sure the plane gets truly disabled, disable + * first the self-refresh mode. The self-refresh enable bit in turn + * will be checked/applied by the HW only at the next frame start + * event which is after the vblank start event, so we need to have a + * wait-for-vblank between disabling the plane and the pipe. + */ + if (HAS_GMCH(dev_priv) && + intel_set_memory_cxsr(dev_priv, false)) + intel_crtc_wait_for_next_vblank(crtc); + + /* + * Gen2 reports pipe underruns whenever all planes are disabled. + * So disable underrun reporting before all the planes get disabled. + */ + if (DISPLAY_VER(dev_priv) == 2 && !crtc_state->active_planes) + intel_set_cpu_fifo_underrun_reporting(dev_priv, crtc->pipe, false); + + intel_plane_disable_arm(plane, crtc_state); + intel_crtc_wait_for_next_vblank(crtc); +} + +unsigned int +intel_plane_fence_y_offset(const struct intel_plane_state *plane_state) +{ + int x = 0, y = 0; + + intel_plane_adjust_aligned_offset(&x, &y, plane_state, 0, + plane_state->view.color_plane[0].offset, 0); + + return y; +} + +static void icl_set_pipe_chicken(const struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + enum pipe pipe = crtc->pipe; + u32 tmp; + + tmp = intel_de_read(dev_priv, PIPE_CHICKEN(pipe)); + + /* + * Display WA #1153: icl + * enable hardware to bypass the alpha math + * and rounding for per-pixel values 00 and 0xff + */ + tmp |= PER_PIXEL_ALPHA_BYPASS_EN; + /* + * Display WA # 1605353570: icl + * Set the pixel rounding bit to 1 for allowing + * passthrough of Frame buffer pixels unmodified + * across pipe + */ + tmp |= PIXEL_ROUNDING_TRUNC_FB_PASSTHRU; + + /* + * Underrun recovery must always be disabled on display 13+. + * DG2 chicken bit meaning is inverted compared to other platforms. + */ + if (IS_DG2(dev_priv)) + tmp &= ~UNDERRUN_RECOVERY_ENABLE_DG2; + else if (DISPLAY_VER(dev_priv) >= 13) + tmp |= UNDERRUN_RECOVERY_DISABLE_ADLP; + + /* Wa_14010547955:dg2 */ + if (IS_DG2_DISPLAY_STEP(dev_priv, STEP_B0, STEP_FOREVER)) + tmp |= DG2_RENDER_CCSTAG_4_3_EN; + + intel_de_write(dev_priv, PIPE_CHICKEN(pipe), tmp); +} + +bool intel_has_pending_fb_unpin(struct drm_i915_private *dev_priv) +{ + struct drm_crtc *crtc; + bool cleanup_done; + + drm_for_each_crtc(crtc, &dev_priv->drm) { + struct drm_crtc_commit *commit; + spin_lock(&crtc->commit_lock); + commit = list_first_entry_or_null(&crtc->commit_list, + struct drm_crtc_commit, commit_entry); + cleanup_done = commit ? + try_wait_for_completion(&commit->cleanup_done) : true; + spin_unlock(&crtc->commit_lock); + + if (cleanup_done) + continue; + + intel_crtc_wait_for_next_vblank(to_intel_crtc(crtc)); + + return true; + } + + return false; +} + +/* + * Finds the encoder associated with the given CRTC. This can only be + * used when we know that the CRTC isn't feeding multiple encoders! + */ +struct intel_encoder * +intel_get_crtc_new_encoder(const struct intel_atomic_state *state, + const struct intel_crtc_state *crtc_state) +{ + const struct drm_connector_state *connector_state; + const struct drm_connector *connector; + struct intel_encoder *encoder = NULL; + struct intel_crtc *master_crtc; + int num_encoders = 0; + int i; + + master_crtc = intel_master_crtc(crtc_state); + + for_each_new_connector_in_state(&state->base, connector, connector_state, i) { + if (connector_state->crtc != &master_crtc->base) + continue; + + encoder = to_intel_encoder(connector_state->best_encoder); + num_encoders++; + } + + drm_WARN(state->base.dev, num_encoders != 1, + "%d encoders for pipe %c\n", + num_encoders, pipe_name(master_crtc->pipe)); + + return encoder; +} + +static void ilk_pfit_enable(const struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + const struct drm_rect *dst = &crtc_state->pch_pfit.dst; + enum pipe pipe = crtc->pipe; + int width = drm_rect_width(dst); + int height = drm_rect_height(dst); + int x = dst->x1; + int y = dst->y1; + + if (!crtc_state->pch_pfit.enabled) + return; + + /* Force use of hard-coded filter coefficients + * as some pre-programmed values are broken, + * e.g. x201. + */ + if (IS_IVYBRIDGE(dev_priv) || IS_HASWELL(dev_priv)) + intel_de_write_fw(dev_priv, PF_CTL(pipe), PF_ENABLE | + PF_FILTER_MED_3x3 | PF_PIPE_SEL_IVB(pipe)); + else + intel_de_write_fw(dev_priv, PF_CTL(pipe), PF_ENABLE | + PF_FILTER_MED_3x3); + intel_de_write_fw(dev_priv, PF_WIN_POS(pipe), + PF_WIN_XPOS(x) | PF_WIN_YPOS(y)); + intel_de_write_fw(dev_priv, PF_WIN_SZ(pipe), + PF_WIN_XSIZE(width) | PF_WIN_YSIZE(height)); +} + +static void intel_crtc_dpms_overlay_disable(struct intel_crtc *crtc) +{ + if (crtc->overlay) + (void) intel_overlay_switch_off(crtc->overlay); + + /* Let userspace switch the overlay on again. In most cases userspace + * has to recompute where to put it anyway. + */ +} + +static bool needs_nv12_wa(const struct intel_crtc_state *crtc_state) +{ + struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev); + + if (!crtc_state->nv12_planes) + return false; + + /* WA Display #0827: Gen9:all */ + if (DISPLAY_VER(dev_priv) == 9) + return true; + + return false; +} + +static bool needs_scalerclk_wa(const struct intel_crtc_state *crtc_state) +{ + struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev); + + /* Wa_2006604312:icl,ehl */ + if (crtc_state->scaler_state.scaler_users > 0 && DISPLAY_VER(dev_priv) == 11) + return true; + + return false; +} + +static bool needs_cursorclk_wa(const struct intel_crtc_state *crtc_state) +{ + struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev); + + /* Wa_1604331009:icl,jsl,ehl */ + if (is_hdr_mode(crtc_state) && + crtc_state->active_planes & BIT(PLANE_CURSOR) && + DISPLAY_VER(dev_priv) == 11) + return true; + + return false; +} + +static void intel_async_flip_vtd_wa(struct drm_i915_private *i915, + enum pipe pipe, bool enable) +{ + if (DISPLAY_VER(i915) == 9) { + /* + * "Plane N strech max must be programmed to 11b (x1) + * when Async flips are enabled on that plane." + */ + intel_de_rmw(i915, CHICKEN_PIPESL_1(pipe), + SKL_PLANE1_STRETCH_MAX_MASK, + enable ? SKL_PLANE1_STRETCH_MAX_X1 : SKL_PLANE1_STRETCH_MAX_X8); + } else { + /* Also needed on HSW/BDW albeit undocumented */ + intel_de_rmw(i915, CHICKEN_PIPESL_1(pipe), + HSW_PRI_STRETCH_MAX_MASK, + enable ? HSW_PRI_STRETCH_MAX_X1 : HSW_PRI_STRETCH_MAX_X8); + } +} + +static bool needs_async_flip_vtd_wa(const struct intel_crtc_state *crtc_state) +{ + struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev); + + return crtc_state->uapi.async_flip && i915_vtd_active(i915) && + (DISPLAY_VER(i915) == 9 || IS_BROADWELL(i915) || IS_HASWELL(i915)); +} + +#define is_enabling(feature, old_crtc_state, new_crtc_state) \ + ((!(old_crtc_state)->feature || intel_crtc_needs_modeset(new_crtc_state)) && \ + (new_crtc_state)->feature) +#define is_disabling(feature, old_crtc_state, new_crtc_state) \ + ((old_crtc_state)->feature && \ + (!(new_crtc_state)->feature || intel_crtc_needs_modeset(new_crtc_state))) + +static bool planes_enabling(const struct intel_crtc_state *old_crtc_state, + const struct intel_crtc_state *new_crtc_state) +{ + return is_enabling(active_planes, old_crtc_state, new_crtc_state); +} + +static bool planes_disabling(const struct intel_crtc_state *old_crtc_state, + const struct intel_crtc_state *new_crtc_state) +{ + return is_disabling(active_planes, old_crtc_state, new_crtc_state); +} + +static bool vrr_enabling(const struct intel_crtc_state *old_crtc_state, + const struct intel_crtc_state *new_crtc_state) +{ + return is_enabling(vrr.enable, old_crtc_state, new_crtc_state); +} + +static bool vrr_disabling(const struct intel_crtc_state *old_crtc_state, + const struct intel_crtc_state *new_crtc_state) +{ + return is_disabling(vrr.enable, old_crtc_state, new_crtc_state); +} + +#undef is_disabling +#undef is_enabling + +static void intel_post_plane_update(struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + struct drm_i915_private *dev_priv = to_i915(state->base.dev); + const struct intel_crtc_state *old_crtc_state = + intel_atomic_get_old_crtc_state(state, crtc); + const struct intel_crtc_state *new_crtc_state = + intel_atomic_get_new_crtc_state(state, crtc); + enum pipe pipe = crtc->pipe; + + intel_frontbuffer_flip(dev_priv, new_crtc_state->fb_bits); + + if (new_crtc_state->update_wm_post && new_crtc_state->hw.active) + intel_update_watermarks(dev_priv); + + intel_fbc_post_update(state, crtc); + + if (needs_async_flip_vtd_wa(old_crtc_state) && + !needs_async_flip_vtd_wa(new_crtc_state)) + intel_async_flip_vtd_wa(dev_priv, pipe, false); + + if (needs_nv12_wa(old_crtc_state) && + !needs_nv12_wa(new_crtc_state)) + skl_wa_827(dev_priv, pipe, false); + + if (needs_scalerclk_wa(old_crtc_state) && + !needs_scalerclk_wa(new_crtc_state)) + icl_wa_scalerclkgating(dev_priv, pipe, false); + + if (needs_cursorclk_wa(old_crtc_state) && + !needs_cursorclk_wa(new_crtc_state)) + icl_wa_cursorclkgating(dev_priv, pipe, false); + + if (intel_crtc_needs_color_update(new_crtc_state)) + intel_color_post_update(new_crtc_state); +} + +static void intel_crtc_enable_flip_done(struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + const struct intel_crtc_state *crtc_state = + intel_atomic_get_new_crtc_state(state, crtc); + u8 update_planes = crtc_state->update_planes; + const struct intel_plane_state __maybe_unused *plane_state; + struct intel_plane *plane; + int i; + + for_each_new_intel_plane_in_state(state, plane, plane_state, i) { + if (plane->pipe == crtc->pipe && + update_planes & BIT(plane->id)) + plane->enable_flip_done(plane); + } +} + +static void intel_crtc_disable_flip_done(struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + const struct intel_crtc_state *crtc_state = + intel_atomic_get_new_crtc_state(state, crtc); + u8 update_planes = crtc_state->update_planes; + const struct intel_plane_state __maybe_unused *plane_state; + struct intel_plane *plane; + int i; + + for_each_new_intel_plane_in_state(state, plane, plane_state, i) { + if (plane->pipe == crtc->pipe && + update_planes & BIT(plane->id)) + plane->disable_flip_done(plane); + } +} + +static void intel_crtc_async_flip_disable_wa(struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + const struct intel_crtc_state *old_crtc_state = + intel_atomic_get_old_crtc_state(state, crtc); + const struct intel_crtc_state *new_crtc_state = + intel_atomic_get_new_crtc_state(state, crtc); + u8 disable_async_flip_planes = old_crtc_state->async_flip_planes & + ~new_crtc_state->async_flip_planes; + const struct intel_plane_state *old_plane_state; + struct intel_plane *plane; + bool need_vbl_wait = false; + int i; + + for_each_old_intel_plane_in_state(state, plane, old_plane_state, i) { + if (plane->need_async_flip_disable_wa && + plane->pipe == crtc->pipe && + disable_async_flip_planes & BIT(plane->id)) { + /* + * Apart from the async flip bit we want to + * preserve the old state for the plane. + */ + plane->async_flip(plane, old_crtc_state, + old_plane_state, false); + need_vbl_wait = true; + } + } + + if (need_vbl_wait) + intel_crtc_wait_for_next_vblank(crtc); +} + +static void intel_pre_plane_update(struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + struct drm_i915_private *dev_priv = to_i915(state->base.dev); + const struct intel_crtc_state *old_crtc_state = + intel_atomic_get_old_crtc_state(state, crtc); + const struct intel_crtc_state *new_crtc_state = + intel_atomic_get_new_crtc_state(state, crtc); + enum pipe pipe = crtc->pipe; + + if (vrr_disabling(old_crtc_state, new_crtc_state)) { + intel_vrr_disable(old_crtc_state); + intel_crtc_update_active_timings(old_crtc_state, false); + } + + intel_drrs_deactivate(old_crtc_state); + + intel_psr_pre_plane_update(state, crtc); + + if (hsw_ips_pre_update(state, crtc)) + intel_crtc_wait_for_next_vblank(crtc); + + if (intel_fbc_pre_update(state, crtc)) + intel_crtc_wait_for_next_vblank(crtc); + + if (!needs_async_flip_vtd_wa(old_crtc_state) && + needs_async_flip_vtd_wa(new_crtc_state)) + intel_async_flip_vtd_wa(dev_priv, pipe, true); + + /* Display WA 827 */ + if (!needs_nv12_wa(old_crtc_state) && + needs_nv12_wa(new_crtc_state)) + skl_wa_827(dev_priv, pipe, true); + + /* Wa_2006604312:icl,ehl */ + if (!needs_scalerclk_wa(old_crtc_state) && + needs_scalerclk_wa(new_crtc_state)) + icl_wa_scalerclkgating(dev_priv, pipe, true); + + /* Wa_1604331009:icl,jsl,ehl */ + if (!needs_cursorclk_wa(old_crtc_state) && + needs_cursorclk_wa(new_crtc_state)) + icl_wa_cursorclkgating(dev_priv, pipe, true); + + /* + * Vblank time updates from the shadow to live plane control register + * are blocked if the memory self-refresh mode is active at that + * moment. So to make sure the plane gets truly disabled, disable + * first the self-refresh mode. The self-refresh enable bit in turn + * will be checked/applied by the HW only at the next frame start + * event which is after the vblank start event, so we need to have a + * wait-for-vblank between disabling the plane and the pipe. + */ + if (HAS_GMCH(dev_priv) && old_crtc_state->hw.active && + new_crtc_state->disable_cxsr && intel_set_memory_cxsr(dev_priv, false)) + intel_crtc_wait_for_next_vblank(crtc); + + /* + * IVB workaround: must disable low power watermarks for at least + * one frame before enabling scaling. LP watermarks can be re-enabled + * when scaling is disabled. + * + * WaCxSRDisabledForSpriteScaling:ivb + */ + if (old_crtc_state->hw.active && + new_crtc_state->disable_lp_wm && ilk_disable_lp_wm(dev_priv)) + intel_crtc_wait_for_next_vblank(crtc); + + /* + * If we're doing a modeset we don't need to do any + * pre-vblank watermark programming here. + */ + if (!intel_crtc_needs_modeset(new_crtc_state)) { + /* + * For platforms that support atomic watermarks, program the + * 'intermediate' watermarks immediately. On pre-gen9 platforms, these + * will be the intermediate values that are safe for both pre- and + * post- vblank; when vblank happens, the 'active' values will be set + * to the final 'target' values and we'll do this again to get the + * optimal watermarks. For gen9+ platforms, the values we program here + * will be the final target values which will get automatically latched + * at vblank time; no further programming will be necessary. + * + * If a platform hasn't been transitioned to atomic watermarks yet, + * we'll continue to update watermarks the old way, if flags tell + * us to. + */ + if (!intel_initial_watermarks(state, crtc)) + if (new_crtc_state->update_wm_pre) + intel_update_watermarks(dev_priv); + } + + /* + * Gen2 reports pipe underruns whenever all planes are disabled. + * So disable underrun reporting before all the planes get disabled. + * + * We do this after .initial_watermarks() so that we have a + * chance of catching underruns with the intermediate watermarks + * vs. the old plane configuration. + */ + if (DISPLAY_VER(dev_priv) == 2 && planes_disabling(old_crtc_state, new_crtc_state)) + intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false); + + /* + * WA for platforms where async address update enable bit + * is double buffered and only latched at start of vblank. + */ + if (old_crtc_state->async_flip_planes & ~new_crtc_state->async_flip_planes) + intel_crtc_async_flip_disable_wa(state, crtc); +} + +static void intel_crtc_disable_planes(struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + const struct intel_crtc_state *new_crtc_state = + intel_atomic_get_new_crtc_state(state, crtc); + unsigned int update_mask = new_crtc_state->update_planes; + const struct intel_plane_state *old_plane_state; + struct intel_plane *plane; + unsigned fb_bits = 0; + int i; + + intel_crtc_dpms_overlay_disable(crtc); + + for_each_old_intel_plane_in_state(state, plane, old_plane_state, i) { + if (crtc->pipe != plane->pipe || + !(update_mask & BIT(plane->id))) + continue; + + intel_plane_disable_arm(plane, new_crtc_state); + + if (old_plane_state->uapi.visible) + fb_bits |= plane->frontbuffer_bit; + } + + intel_frontbuffer_flip(dev_priv, fb_bits); +} + +static void intel_encoders_update_prepare(struct intel_atomic_state *state) +{ + struct drm_i915_private *i915 = to_i915(state->base.dev); + struct intel_crtc_state *new_crtc_state, *old_crtc_state; + struct intel_crtc *crtc; + int i; + + /* + * Make sure the DPLL state is up-to-date for fastset TypeC ports after non-blocking commits. + * TODO: Update the DPLL state for all cases in the encoder->update_prepare() hook. + */ + if (i915->display.dpll.mgr) { + for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { + if (intel_crtc_needs_modeset(new_crtc_state)) + continue; + + new_crtc_state->shared_dpll = old_crtc_state->shared_dpll; + new_crtc_state->dpll_hw_state = old_crtc_state->dpll_hw_state; + } + } +} + +static void intel_encoders_pre_pll_enable(struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + const struct intel_crtc_state *crtc_state = + intel_atomic_get_new_crtc_state(state, crtc); + const struct drm_connector_state *conn_state; + struct drm_connector *conn; + int i; + + for_each_new_connector_in_state(&state->base, conn, conn_state, i) { + struct intel_encoder *encoder = + to_intel_encoder(conn_state->best_encoder); + + if (conn_state->crtc != &crtc->base) + continue; + + if (encoder->pre_pll_enable) + encoder->pre_pll_enable(state, encoder, + crtc_state, conn_state); + } +} + +static void intel_encoders_pre_enable(struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + const struct intel_crtc_state *crtc_state = + intel_atomic_get_new_crtc_state(state, crtc); + const struct drm_connector_state *conn_state; + struct drm_connector *conn; + int i; + + for_each_new_connector_in_state(&state->base, conn, conn_state, i) { + struct intel_encoder *encoder = + to_intel_encoder(conn_state->best_encoder); + + if (conn_state->crtc != &crtc->base) + continue; + + if (encoder->pre_enable) + encoder->pre_enable(state, encoder, + crtc_state, conn_state); + } +} + +static void intel_encoders_enable(struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + const struct intel_crtc_state *crtc_state = + intel_atomic_get_new_crtc_state(state, crtc); + const struct drm_connector_state *conn_state; + struct drm_connector *conn; + int i; + + for_each_new_connector_in_state(&state->base, conn, conn_state, i) { + struct intel_encoder *encoder = + to_intel_encoder(conn_state->best_encoder); + + if (conn_state->crtc != &crtc->base) + continue; + + if (encoder->enable) + encoder->enable(state, encoder, + crtc_state, conn_state); + intel_opregion_notify_encoder(encoder, true); + } +} + +static void intel_encoders_disable(struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + const struct intel_crtc_state *old_crtc_state = + intel_atomic_get_old_crtc_state(state, crtc); + const struct drm_connector_state *old_conn_state; + struct drm_connector *conn; + int i; + + for_each_old_connector_in_state(&state->base, conn, old_conn_state, i) { + struct intel_encoder *encoder = + to_intel_encoder(old_conn_state->best_encoder); + + if (old_conn_state->crtc != &crtc->base) + continue; + + intel_opregion_notify_encoder(encoder, false); + if (encoder->disable) + encoder->disable(state, encoder, + old_crtc_state, old_conn_state); + } +} + +static void intel_encoders_post_disable(struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + const struct intel_crtc_state *old_crtc_state = + intel_atomic_get_old_crtc_state(state, crtc); + const struct drm_connector_state *old_conn_state; + struct drm_connector *conn; + int i; + + for_each_old_connector_in_state(&state->base, conn, old_conn_state, i) { + struct intel_encoder *encoder = + to_intel_encoder(old_conn_state->best_encoder); + + if (old_conn_state->crtc != &crtc->base) + continue; + + if (encoder->post_disable) + encoder->post_disable(state, encoder, + old_crtc_state, old_conn_state); + } +} + +static void intel_encoders_post_pll_disable(struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + const struct intel_crtc_state *old_crtc_state = + intel_atomic_get_old_crtc_state(state, crtc); + const struct drm_connector_state *old_conn_state; + struct drm_connector *conn; + int i; + + for_each_old_connector_in_state(&state->base, conn, old_conn_state, i) { + struct intel_encoder *encoder = + to_intel_encoder(old_conn_state->best_encoder); + + if (old_conn_state->crtc != &crtc->base) + continue; + + if (encoder->post_pll_disable) + encoder->post_pll_disable(state, encoder, + old_crtc_state, old_conn_state); + } +} + +static void intel_encoders_update_pipe(struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + const struct intel_crtc_state *crtc_state = + intel_atomic_get_new_crtc_state(state, crtc); + const struct drm_connector_state *conn_state; + struct drm_connector *conn; + int i; + + for_each_new_connector_in_state(&state->base, conn, conn_state, i) { + struct intel_encoder *encoder = + to_intel_encoder(conn_state->best_encoder); + + if (conn_state->crtc != &crtc->base) + continue; + + if (encoder->update_pipe) + encoder->update_pipe(state, encoder, + crtc_state, conn_state); + } +} + +static void intel_disable_primary_plane(const struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct intel_plane *plane = to_intel_plane(crtc->base.primary); + + plane->disable_arm(plane, crtc_state); +} + +static void ilk_configure_cpu_transcoder(const struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; + + if (crtc_state->has_pch_encoder) { + intel_cpu_transcoder_set_m1_n1(crtc, cpu_transcoder, + &crtc_state->fdi_m_n); + } else if (intel_crtc_has_dp_encoder(crtc_state)) { + intel_cpu_transcoder_set_m1_n1(crtc, cpu_transcoder, + &crtc_state->dp_m_n); + intel_cpu_transcoder_set_m2_n2(crtc, cpu_transcoder, + &crtc_state->dp_m2_n2); + } + + intel_set_transcoder_timings(crtc_state); + + ilk_set_pipeconf(crtc_state); +} + +static void ilk_crtc_enable(struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + const struct intel_crtc_state *new_crtc_state = + intel_atomic_get_new_crtc_state(state, crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + enum pipe pipe = crtc->pipe; + + if (drm_WARN_ON(&dev_priv->drm, crtc->active)) + return; + + /* + * Sometimes spurious CPU pipe underruns happen during FDI + * training, at least with VGA+HDMI cloning. Suppress them. + * + * On ILK we get an occasional spurious CPU pipe underruns + * between eDP port A enable and vdd enable. Also PCH port + * enable seems to result in the occasional CPU pipe underrun. + * + * Spurious PCH underruns also occur during PCH enabling. + */ + intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false); + intel_set_pch_fifo_underrun_reporting(dev_priv, pipe, false); + + ilk_configure_cpu_transcoder(new_crtc_state); + + intel_set_pipe_src_size(new_crtc_state); + + crtc->active = true; + + intel_encoders_pre_enable(state, crtc); + + if (new_crtc_state->has_pch_encoder) { + ilk_pch_pre_enable(state, crtc); + } else { + assert_fdi_tx_disabled(dev_priv, pipe); + assert_fdi_rx_disabled(dev_priv, pipe); + } + + ilk_pfit_enable(new_crtc_state); + + /* + * On ILK+ LUT must be loaded before the pipe is running but with + * clocks enabled + */ + intel_color_load_luts(new_crtc_state); + intel_color_commit_noarm(new_crtc_state); + intel_color_commit_arm(new_crtc_state); + /* update DSPCNTR to configure gamma for pipe bottom color */ + intel_disable_primary_plane(new_crtc_state); + + intel_initial_watermarks(state, crtc); + intel_enable_transcoder(new_crtc_state); + + if (new_crtc_state->has_pch_encoder) + ilk_pch_enable(state, crtc); + + intel_crtc_vblank_on(new_crtc_state); + + intel_encoders_enable(state, crtc); + + if (HAS_PCH_CPT(dev_priv)) + intel_wait_for_pipe_scanline_moving(crtc); + + /* + * Must wait for vblank to avoid spurious PCH FIFO underruns. + * And a second vblank wait is needed at least on ILK with + * some interlaced HDMI modes. Let's do the double wait always + * in case there are more corner cases we don't know about. + */ + if (new_crtc_state->has_pch_encoder) { + intel_crtc_wait_for_next_vblank(crtc); + intel_crtc_wait_for_next_vblank(crtc); + } + intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true); + intel_set_pch_fifo_underrun_reporting(dev_priv, pipe, true); +} + +static void glk_pipe_scaler_clock_gating_wa(struct drm_i915_private *dev_priv, + enum pipe pipe, bool apply) +{ + u32 val = intel_de_read(dev_priv, CLKGATE_DIS_PSL(pipe)); + u32 mask = DPF_GATING_DIS | DPF_RAM_GATING_DIS | DPFR_GATING_DIS; + + if (apply) + val |= mask; + else + val &= ~mask; + + intel_de_write(dev_priv, CLKGATE_DIS_PSL(pipe), val); +} + +static void hsw_set_linetime_wm(const struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + + intel_de_write(dev_priv, WM_LINETIME(crtc->pipe), + HSW_LINETIME(crtc_state->linetime) | + HSW_IPS_LINETIME(crtc_state->ips_linetime)); +} + +static void hsw_set_frame_start_delay(const struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + enum transcoder transcoder = crtc_state->cpu_transcoder; + i915_reg_t reg = DISPLAY_VER(dev_priv) >= 14 ? MTL_CHICKEN_TRANS(transcoder) : + CHICKEN_TRANS(transcoder); + + intel_de_rmw(dev_priv, reg, + HSW_FRAME_START_DELAY_MASK, + HSW_FRAME_START_DELAY(crtc_state->framestart_delay - 1)); +} + +static void icl_ddi_bigjoiner_pre_enable(struct intel_atomic_state *state, + const struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *master_crtc = intel_master_crtc(crtc_state); + + /* + * Enable sequence steps 1-7 on bigjoiner master + */ + if (intel_crtc_is_bigjoiner_slave(crtc_state)) + intel_encoders_pre_pll_enable(state, master_crtc); + + if (crtc_state->shared_dpll) + intel_enable_shared_dpll(crtc_state); + + if (intel_crtc_is_bigjoiner_slave(crtc_state)) + intel_encoders_pre_enable(state, master_crtc); +} + +static void hsw_configure_cpu_transcoder(const struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; + + if (crtc_state->has_pch_encoder) { + intel_cpu_transcoder_set_m1_n1(crtc, cpu_transcoder, + &crtc_state->fdi_m_n); + } else if (intel_crtc_has_dp_encoder(crtc_state)) { + intel_cpu_transcoder_set_m1_n1(crtc, cpu_transcoder, + &crtc_state->dp_m_n); + intel_cpu_transcoder_set_m2_n2(crtc, cpu_transcoder, + &crtc_state->dp_m2_n2); + } + + intel_set_transcoder_timings(crtc_state); + if (HAS_VRR(dev_priv)) + intel_vrr_set_transcoder_timings(crtc_state); + + if (cpu_transcoder != TRANSCODER_EDP) + intel_de_write(dev_priv, TRANS_MULT(cpu_transcoder), + crtc_state->pixel_multiplier - 1); + + hsw_set_frame_start_delay(crtc_state); + + hsw_set_transconf(crtc_state); +} + +static void hsw_crtc_enable(struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + const struct intel_crtc_state *new_crtc_state = + intel_atomic_get_new_crtc_state(state, crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + enum pipe pipe = crtc->pipe, hsw_workaround_pipe; + enum transcoder cpu_transcoder = new_crtc_state->cpu_transcoder; + bool psl_clkgate_wa; + + if (drm_WARN_ON(&dev_priv->drm, crtc->active)) + return; + + intel_dmc_enable_pipe(dev_priv, crtc->pipe); + + if (!new_crtc_state->bigjoiner_pipes) { + intel_encoders_pre_pll_enable(state, crtc); + + if (new_crtc_state->shared_dpll) + intel_enable_shared_dpll(new_crtc_state); + + intel_encoders_pre_enable(state, crtc); + } else { + icl_ddi_bigjoiner_pre_enable(state, new_crtc_state); + } + + intel_dsc_enable(new_crtc_state); + + if (DISPLAY_VER(dev_priv) >= 13) + intel_uncompressed_joiner_enable(new_crtc_state); + + intel_set_pipe_src_size(new_crtc_state); + if (DISPLAY_VER(dev_priv) >= 9 || IS_BROADWELL(dev_priv)) + bdw_set_pipe_misc(new_crtc_state); + + if (!intel_crtc_is_bigjoiner_slave(new_crtc_state) && + !transcoder_is_dsi(cpu_transcoder)) + hsw_configure_cpu_transcoder(new_crtc_state); + + crtc->active = true; + + /* Display WA #1180: WaDisableScalarClockGating: glk */ + psl_clkgate_wa = DISPLAY_VER(dev_priv) == 10 && + new_crtc_state->pch_pfit.enabled; + if (psl_clkgate_wa) + glk_pipe_scaler_clock_gating_wa(dev_priv, pipe, true); + + if (DISPLAY_VER(dev_priv) >= 9) + skl_pfit_enable(new_crtc_state); + else + ilk_pfit_enable(new_crtc_state); + + /* + * On ILK+ LUT must be loaded before the pipe is running but with + * clocks enabled + */ + intel_color_load_luts(new_crtc_state); + intel_color_commit_noarm(new_crtc_state); + intel_color_commit_arm(new_crtc_state); + /* update DSPCNTR to configure gamma/csc for pipe bottom color */ + if (DISPLAY_VER(dev_priv) < 9) + intel_disable_primary_plane(new_crtc_state); + + hsw_set_linetime_wm(new_crtc_state); + + if (DISPLAY_VER(dev_priv) >= 11) + icl_set_pipe_chicken(new_crtc_state); + + intel_initial_watermarks(state, crtc); + + if (intel_crtc_is_bigjoiner_slave(new_crtc_state)) + intel_crtc_vblank_on(new_crtc_state); + + intel_encoders_enable(state, crtc); + + if (psl_clkgate_wa) { + intel_crtc_wait_for_next_vblank(crtc); + glk_pipe_scaler_clock_gating_wa(dev_priv, pipe, false); + } + + /* If we change the relative order between pipe/planes enabling, we need + * to change the workaround. */ + hsw_workaround_pipe = new_crtc_state->hsw_workaround_pipe; + if (IS_HASWELL(dev_priv) && hsw_workaround_pipe != INVALID_PIPE) { + struct intel_crtc *wa_crtc; + + wa_crtc = intel_crtc_for_pipe(dev_priv, hsw_workaround_pipe); + + intel_crtc_wait_for_next_vblank(wa_crtc); + intel_crtc_wait_for_next_vblank(wa_crtc); + } +} + +void ilk_pfit_disable(const struct intel_crtc_state *old_crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(old_crtc_state->uapi.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + enum pipe pipe = crtc->pipe; + + /* To avoid upsetting the power well on haswell only disable the pfit if + * it's in use. The hw state code will make sure we get this right. */ + if (!old_crtc_state->pch_pfit.enabled) + return; + + intel_de_write_fw(dev_priv, PF_CTL(pipe), 0); + intel_de_write_fw(dev_priv, PF_WIN_POS(pipe), 0); + intel_de_write_fw(dev_priv, PF_WIN_SZ(pipe), 0); +} + +static void ilk_crtc_disable(struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + const struct intel_crtc_state *old_crtc_state = + intel_atomic_get_old_crtc_state(state, crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + enum pipe pipe = crtc->pipe; + + /* + * Sometimes spurious CPU pipe underruns happen when the + * pipe is already disabled, but FDI RX/TX is still enabled. + * Happens at least with VGA+HDMI cloning. Suppress them. + */ + intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false); + intel_set_pch_fifo_underrun_reporting(dev_priv, pipe, false); + + intel_encoders_disable(state, crtc); + + intel_crtc_vblank_off(old_crtc_state); + + intel_disable_transcoder(old_crtc_state); + + ilk_pfit_disable(old_crtc_state); + + if (old_crtc_state->has_pch_encoder) + ilk_pch_disable(state, crtc); + + intel_encoders_post_disable(state, crtc); + + if (old_crtc_state->has_pch_encoder) + ilk_pch_post_disable(state, crtc); + + intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true); + intel_set_pch_fifo_underrun_reporting(dev_priv, pipe, true); + + intel_disable_shared_dpll(old_crtc_state); +} + +static void hsw_crtc_disable(struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + const struct intel_crtc_state *old_crtc_state = + intel_atomic_get_old_crtc_state(state, crtc); + struct drm_i915_private *i915 = to_i915(crtc->base.dev); + + /* + * FIXME collapse everything to one hook. + * Need care with mst->ddi interactions. + */ + if (!intel_crtc_is_bigjoiner_slave(old_crtc_state)) { + intel_encoders_disable(state, crtc); + intel_encoders_post_disable(state, crtc); + } + + intel_disable_shared_dpll(old_crtc_state); + + if (!intel_crtc_is_bigjoiner_slave(old_crtc_state)) { + struct intel_crtc *slave_crtc; + + intel_encoders_post_pll_disable(state, crtc); + + intel_dmc_disable_pipe(i915, crtc->pipe); + + for_each_intel_crtc_in_pipe_mask(&i915->drm, slave_crtc, + intel_crtc_bigjoiner_slave_pipes(old_crtc_state)) + intel_dmc_disable_pipe(i915, slave_crtc->pipe); + } +} + +static void i9xx_pfit_enable(const struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + + if (!crtc_state->gmch_pfit.control) + return; + + /* + * The panel fitter should only be adjusted whilst the pipe is disabled, + * according to register description and PRM. + */ + drm_WARN_ON(&dev_priv->drm, + intel_de_read(dev_priv, PFIT_CONTROL) & PFIT_ENABLE); + assert_transcoder_disabled(dev_priv, crtc_state->cpu_transcoder); + + intel_de_write(dev_priv, PFIT_PGM_RATIOS, + crtc_state->gmch_pfit.pgm_ratios); + intel_de_write(dev_priv, PFIT_CONTROL, crtc_state->gmch_pfit.control); + + /* Border color in case we don't scale up to the full screen. Black by + * default, change to something else for debugging. */ + intel_de_write(dev_priv, BCLRPAT(crtc->pipe), 0); +} + +bool intel_phy_is_combo(struct drm_i915_private *dev_priv, enum phy phy) +{ + if (phy == PHY_NONE) + return false; + else if (IS_ALDERLAKE_S(dev_priv)) + return phy <= PHY_E; + else if (IS_DG1(dev_priv) || IS_ROCKETLAKE(dev_priv)) + return phy <= PHY_D; + else if (IS_JASPERLAKE(dev_priv) || IS_ELKHARTLAKE(dev_priv)) + return phy <= PHY_C; + else if (IS_ALDERLAKE_P(dev_priv) || IS_DISPLAY_VER(dev_priv, 11, 12)) + return phy <= PHY_B; + else + /* + * DG2 outputs labelled as "combo PHY" in the bspec use + * SNPS PHYs with completely different programming, + * hence we always return false here. + */ + return false; +} + +bool intel_phy_is_tc(struct drm_i915_private *dev_priv, enum phy phy) +{ + if (IS_DG2(dev_priv)) + /* DG2's "TC1" output uses a SNPS PHY */ + return false; + else if (IS_ALDERLAKE_P(dev_priv) || IS_METEORLAKE(dev_priv)) + return phy >= PHY_F && phy <= PHY_I; + else if (IS_TIGERLAKE(dev_priv)) + return phy >= PHY_D && phy <= PHY_I; + else if (IS_ICELAKE(dev_priv)) + return phy >= PHY_C && phy <= PHY_F; + else + return false; +} + +bool intel_phy_is_snps(struct drm_i915_private *dev_priv, enum phy phy) +{ + if (phy == PHY_NONE) + return false; + else if (IS_DG2(dev_priv)) + /* + * All four "combo" ports and the TC1 port (PHY E) use + * Synopsis PHYs. + */ + return phy <= PHY_E; + + return false; +} + +enum phy intel_port_to_phy(struct drm_i915_private *i915, enum port port) +{ + if (DISPLAY_VER(i915) >= 13 && port >= PORT_D_XELPD) + return PHY_D + port - PORT_D_XELPD; + else if (DISPLAY_VER(i915) >= 13 && port >= PORT_TC1) + return PHY_F + port - PORT_TC1; + else if (IS_ALDERLAKE_S(i915) && port >= PORT_TC1) + return PHY_B + port - PORT_TC1; + else if ((IS_DG1(i915) || IS_ROCKETLAKE(i915)) && port >= PORT_TC1) + return PHY_C + port - PORT_TC1; + else if ((IS_JASPERLAKE(i915) || IS_ELKHARTLAKE(i915)) && + port == PORT_D) + return PHY_A; + + return PHY_A + port - PORT_A; +} + +enum tc_port intel_port_to_tc(struct drm_i915_private *dev_priv, enum port port) +{ + if (!intel_phy_is_tc(dev_priv, intel_port_to_phy(dev_priv, port))) + return TC_PORT_NONE; + + if (DISPLAY_VER(dev_priv) >= 12) + return TC_PORT_1 + port - PORT_TC1; + else + return TC_PORT_1 + port - PORT_C; +} + +enum intel_display_power_domain +intel_aux_power_domain(struct intel_digital_port *dig_port) +{ + struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev); + + if (intel_tc_port_in_tbt_alt_mode(dig_port)) + return intel_display_power_tbt_aux_domain(i915, dig_port->aux_ch); + + return intel_display_power_legacy_aux_domain(i915, dig_port->aux_ch); +} + +static void get_crtc_power_domains(struct intel_crtc_state *crtc_state, + struct intel_power_domain_mask *mask) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; + struct drm_encoder *encoder; + enum pipe pipe = crtc->pipe; + + bitmap_zero(mask->bits, POWER_DOMAIN_NUM); + + if (!crtc_state->hw.active) + return; + + set_bit(POWER_DOMAIN_PIPE(pipe), mask->bits); + set_bit(POWER_DOMAIN_TRANSCODER(cpu_transcoder), mask->bits); + if (crtc_state->pch_pfit.enabled || + crtc_state->pch_pfit.force_thru) + set_bit(POWER_DOMAIN_PIPE_PANEL_FITTER(pipe), mask->bits); + + drm_for_each_encoder_mask(encoder, &dev_priv->drm, + crtc_state->uapi.encoder_mask) { + struct intel_encoder *intel_encoder = to_intel_encoder(encoder); + + set_bit(intel_encoder->power_domain, mask->bits); + } + + if (HAS_DDI(dev_priv) && crtc_state->has_audio) + set_bit(POWER_DOMAIN_AUDIO_MMIO, mask->bits); + + if (crtc_state->shared_dpll) + set_bit(POWER_DOMAIN_DISPLAY_CORE, mask->bits); + + if (crtc_state->dsc.compression_enable) + set_bit(intel_dsc_power_domain(crtc, cpu_transcoder), mask->bits); +} + +void intel_modeset_get_crtc_power_domains(struct intel_crtc_state *crtc_state, + struct intel_power_domain_mask *old_domains) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + enum intel_display_power_domain domain; + struct intel_power_domain_mask domains, new_domains; + + get_crtc_power_domains(crtc_state, &domains); + + bitmap_andnot(new_domains.bits, + domains.bits, + crtc->enabled_power_domains.mask.bits, + POWER_DOMAIN_NUM); + bitmap_andnot(old_domains->bits, + crtc->enabled_power_domains.mask.bits, + domains.bits, + POWER_DOMAIN_NUM); + + for_each_power_domain(domain, &new_domains) + intel_display_power_get_in_set(dev_priv, + &crtc->enabled_power_domains, + domain); +} + +void intel_modeset_put_crtc_power_domains(struct intel_crtc *crtc, + struct intel_power_domain_mask *domains) +{ + intel_display_power_put_mask_in_set(to_i915(crtc->base.dev), + &crtc->enabled_power_domains, + domains); +} + +static void i9xx_configure_cpu_transcoder(const struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; + + if (intel_crtc_has_dp_encoder(crtc_state)) { + intel_cpu_transcoder_set_m1_n1(crtc, cpu_transcoder, + &crtc_state->dp_m_n); + intel_cpu_transcoder_set_m2_n2(crtc, cpu_transcoder, + &crtc_state->dp_m2_n2); + } + + intel_set_transcoder_timings(crtc_state); + + i9xx_set_pipeconf(crtc_state); +} + +static void valleyview_crtc_enable(struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + const struct intel_crtc_state *new_crtc_state = + intel_atomic_get_new_crtc_state(state, crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + enum pipe pipe = crtc->pipe; + + if (drm_WARN_ON(&dev_priv->drm, crtc->active)) + return; + + i9xx_configure_cpu_transcoder(new_crtc_state); + + intel_set_pipe_src_size(new_crtc_state); + + intel_de_write(dev_priv, VLV_PIPE_MSA_MISC(pipe), 0); + + if (IS_CHERRYVIEW(dev_priv) && pipe == PIPE_B) { + intel_de_write(dev_priv, CHV_BLEND(pipe), CHV_BLEND_LEGACY); + intel_de_write(dev_priv, CHV_CANVAS(pipe), 0); + } + + crtc->active = true; + + intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true); + + intel_encoders_pre_pll_enable(state, crtc); + + if (IS_CHERRYVIEW(dev_priv)) + chv_enable_pll(new_crtc_state); + else + vlv_enable_pll(new_crtc_state); + + intel_encoders_pre_enable(state, crtc); + + i9xx_pfit_enable(new_crtc_state); + + intel_color_load_luts(new_crtc_state); + intel_color_commit_noarm(new_crtc_state); + intel_color_commit_arm(new_crtc_state); + /* update DSPCNTR to configure gamma for pipe bottom color */ + intel_disable_primary_plane(new_crtc_state); + + intel_initial_watermarks(state, crtc); + intel_enable_transcoder(new_crtc_state); + + intel_crtc_vblank_on(new_crtc_state); + + intel_encoders_enable(state, crtc); +} + +static void i9xx_crtc_enable(struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + const struct intel_crtc_state *new_crtc_state = + intel_atomic_get_new_crtc_state(state, crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + enum pipe pipe = crtc->pipe; + + if (drm_WARN_ON(&dev_priv->drm, crtc->active)) + return; + + i9xx_configure_cpu_transcoder(new_crtc_state); + + intel_set_pipe_src_size(new_crtc_state); + + crtc->active = true; + + if (DISPLAY_VER(dev_priv) != 2) + intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, true); + + intel_encoders_pre_enable(state, crtc); + + i9xx_enable_pll(new_crtc_state); + + i9xx_pfit_enable(new_crtc_state); + + intel_color_load_luts(new_crtc_state); + intel_color_commit_noarm(new_crtc_state); + intel_color_commit_arm(new_crtc_state); + /* update DSPCNTR to configure gamma for pipe bottom color */ + intel_disable_primary_plane(new_crtc_state); + + if (!intel_initial_watermarks(state, crtc)) + intel_update_watermarks(dev_priv); + intel_enable_transcoder(new_crtc_state); + + intel_crtc_vblank_on(new_crtc_state); + + intel_encoders_enable(state, crtc); + + /* prevents spurious underruns */ + if (DISPLAY_VER(dev_priv) == 2) + intel_crtc_wait_for_next_vblank(crtc); +} + +static void i9xx_pfit_disable(const struct intel_crtc_state *old_crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(old_crtc_state->uapi.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + + if (!old_crtc_state->gmch_pfit.control) + return; + + assert_transcoder_disabled(dev_priv, old_crtc_state->cpu_transcoder); + + drm_dbg_kms(&dev_priv->drm, "disabling pfit, current: 0x%08x\n", + intel_de_read(dev_priv, PFIT_CONTROL)); + intel_de_write(dev_priv, PFIT_CONTROL, 0); +} + +static void i9xx_crtc_disable(struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + struct intel_crtc_state *old_crtc_state = + intel_atomic_get_old_crtc_state(state, crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + enum pipe pipe = crtc->pipe; + + /* + * On gen2 planes are double buffered but the pipe isn't, so we must + * wait for planes to fully turn off before disabling the pipe. + */ + if (DISPLAY_VER(dev_priv) == 2) + intel_crtc_wait_for_next_vblank(crtc); + + intel_encoders_disable(state, crtc); + + intel_crtc_vblank_off(old_crtc_state); + + intel_disable_transcoder(old_crtc_state); + + i9xx_pfit_disable(old_crtc_state); + + intel_encoders_post_disable(state, crtc); + + if (!intel_crtc_has_type(old_crtc_state, INTEL_OUTPUT_DSI)) { + if (IS_CHERRYVIEW(dev_priv)) + chv_disable_pll(dev_priv, pipe); + else if (IS_VALLEYVIEW(dev_priv)) + vlv_disable_pll(dev_priv, pipe); + else + i9xx_disable_pll(old_crtc_state); + } + + intel_encoders_post_pll_disable(state, crtc); + + if (DISPLAY_VER(dev_priv) != 2) + intel_set_cpu_fifo_underrun_reporting(dev_priv, pipe, false); + + if (!dev_priv->display.funcs.wm->initial_watermarks) + intel_update_watermarks(dev_priv); + + /* clock the pipe down to 640x480@60 to potentially save power */ + if (IS_I830(dev_priv)) + i830_enable_pipe(dev_priv, pipe); +} + +void intel_encoder_destroy(struct drm_encoder *encoder) +{ + struct intel_encoder *intel_encoder = to_intel_encoder(encoder); + + drm_encoder_cleanup(encoder); + kfree(intel_encoder); +} + +static bool intel_crtc_supports_double_wide(const struct intel_crtc *crtc) +{ + const struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + + /* GDG double wide on either pipe, otherwise pipe A only */ + return DISPLAY_VER(dev_priv) < 4 && + (crtc->pipe == PIPE_A || IS_I915G(dev_priv)); +} + +static u32 ilk_pipe_pixel_rate(const struct intel_crtc_state *crtc_state) +{ + u32 pixel_rate = crtc_state->hw.pipe_mode.crtc_clock; + struct drm_rect src; + + /* + * We only use IF-ID interlacing. If we ever use + * PF-ID we'll need to adjust the pixel_rate here. + */ + + if (!crtc_state->pch_pfit.enabled) + return pixel_rate; + + drm_rect_init(&src, 0, 0, + drm_rect_width(&crtc_state->pipe_src) << 16, + drm_rect_height(&crtc_state->pipe_src) << 16); + + return intel_adjusted_rate(&src, &crtc_state->pch_pfit.dst, + pixel_rate); +} + +static void intel_mode_from_crtc_timings(struct drm_display_mode *mode, + const struct drm_display_mode *timings) +{ + mode->hdisplay = timings->crtc_hdisplay; + mode->htotal = timings->crtc_htotal; + mode->hsync_start = timings->crtc_hsync_start; + mode->hsync_end = timings->crtc_hsync_end; + + mode->vdisplay = timings->crtc_vdisplay; + mode->vtotal = timings->crtc_vtotal; + mode->vsync_start = timings->crtc_vsync_start; + mode->vsync_end = timings->crtc_vsync_end; + + mode->flags = timings->flags; + mode->type = DRM_MODE_TYPE_DRIVER; + + mode->clock = timings->crtc_clock; + + drm_mode_set_name(mode); +} + +static void intel_crtc_compute_pixel_rate(struct intel_crtc_state *crtc_state) +{ + struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev); + + if (HAS_GMCH(dev_priv)) + /* FIXME calculate proper pipe pixel rate for GMCH pfit */ + crtc_state->pixel_rate = + crtc_state->hw.pipe_mode.crtc_clock; + else + crtc_state->pixel_rate = + ilk_pipe_pixel_rate(crtc_state); +} + +static void intel_bigjoiner_adjust_timings(const struct intel_crtc_state *crtc_state, + struct drm_display_mode *mode) +{ + int num_pipes = intel_bigjoiner_num_pipes(crtc_state); + + if (num_pipes < 2) + return; + + mode->crtc_clock /= num_pipes; + mode->crtc_hdisplay /= num_pipes; + mode->crtc_hblank_start /= num_pipes; + mode->crtc_hblank_end /= num_pipes; + mode->crtc_hsync_start /= num_pipes; + mode->crtc_hsync_end /= num_pipes; + mode->crtc_htotal /= num_pipes; +} + +static void intel_splitter_adjust_timings(const struct intel_crtc_state *crtc_state, + struct drm_display_mode *mode) +{ + int overlap = crtc_state->splitter.pixel_overlap; + int n = crtc_state->splitter.link_count; + + if (!crtc_state->splitter.enable) + return; + + /* + * eDP MSO uses segment timings from EDID for transcoder + * timings, but full mode for everything else. + * + * h_full = (h_segment - pixel_overlap) * link_count + */ + mode->crtc_hdisplay = (mode->crtc_hdisplay - overlap) * n; + mode->crtc_hblank_start = (mode->crtc_hblank_start - overlap) * n; + mode->crtc_hblank_end = (mode->crtc_hblank_end - overlap) * n; + mode->crtc_hsync_start = (mode->crtc_hsync_start - overlap) * n; + mode->crtc_hsync_end = (mode->crtc_hsync_end - overlap) * n; + mode->crtc_htotal = (mode->crtc_htotal - overlap) * n; + mode->crtc_clock *= n; +} + +static void intel_crtc_readout_derived_state(struct intel_crtc_state *crtc_state) +{ + struct drm_display_mode *mode = &crtc_state->hw.mode; + struct drm_display_mode *pipe_mode = &crtc_state->hw.pipe_mode; + struct drm_display_mode *adjusted_mode = &crtc_state->hw.adjusted_mode; + + /* + * Start with the adjusted_mode crtc timings, which + * have been filled with the transcoder timings. + */ + drm_mode_copy(pipe_mode, adjusted_mode); + + /* Expand MSO per-segment transcoder timings to full */ + intel_splitter_adjust_timings(crtc_state, pipe_mode); + + /* + * We want the full numbers in adjusted_mode normal timings, + * adjusted_mode crtc timings are left with the raw transcoder + * timings. + */ + intel_mode_from_crtc_timings(adjusted_mode, pipe_mode); + + /* Populate the "user" mode with full numbers */ + drm_mode_copy(mode, pipe_mode); + intel_mode_from_crtc_timings(mode, mode); + mode->hdisplay = drm_rect_width(&crtc_state->pipe_src) * + (intel_bigjoiner_num_pipes(crtc_state) ?: 1); + mode->vdisplay = drm_rect_height(&crtc_state->pipe_src); + + /* Derive per-pipe timings in case bigjoiner is used */ + intel_bigjoiner_adjust_timings(crtc_state, pipe_mode); + intel_mode_from_crtc_timings(pipe_mode, pipe_mode); + + intel_crtc_compute_pixel_rate(crtc_state); +} + +void intel_encoder_get_config(struct intel_encoder *encoder, + struct intel_crtc_state *crtc_state) +{ + encoder->get_config(encoder, crtc_state); + + intel_crtc_readout_derived_state(crtc_state); +} + +static void intel_bigjoiner_compute_pipe_src(struct intel_crtc_state *crtc_state) +{ + int num_pipes = intel_bigjoiner_num_pipes(crtc_state); + int width, height; + + if (num_pipes < 2) + return; + + width = drm_rect_width(&crtc_state->pipe_src); + height = drm_rect_height(&crtc_state->pipe_src); + + drm_rect_init(&crtc_state->pipe_src, 0, 0, + width / num_pipes, height); +} + +static int intel_crtc_compute_pipe_src(struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct drm_i915_private *i915 = to_i915(crtc->base.dev); + + intel_bigjoiner_compute_pipe_src(crtc_state); + + /* + * Pipe horizontal size must be even in: + * - DVO ganged mode + * - LVDS dual channel mode + * - Double wide pipe + */ + if (drm_rect_width(&crtc_state->pipe_src) & 1) { + if (crtc_state->double_wide) { + drm_dbg_kms(&i915->drm, + "[CRTC:%d:%s] Odd pipe source width not supported with double wide pipe\n", + crtc->base.base.id, crtc->base.name); + return -EINVAL; + } + + if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_LVDS) && + intel_is_dual_link_lvds(i915)) { + drm_dbg_kms(&i915->drm, + "[CRTC:%d:%s] Odd pipe source width not supported with dual link LVDS\n", + crtc->base.base.id, crtc->base.name); + return -EINVAL; + } + } + + return 0; +} + +static int intel_crtc_compute_pipe_mode(struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct drm_i915_private *i915 = to_i915(crtc->base.dev); + struct drm_display_mode *adjusted_mode = &crtc_state->hw.adjusted_mode; + struct drm_display_mode *pipe_mode = &crtc_state->hw.pipe_mode; + int clock_limit = i915->max_dotclk_freq; + + /* + * Start with the adjusted_mode crtc timings, which + * have been filled with the transcoder timings. + */ + drm_mode_copy(pipe_mode, adjusted_mode); + + /* Expand MSO per-segment transcoder timings to full */ + intel_splitter_adjust_timings(crtc_state, pipe_mode); + + /* Derive per-pipe timings in case bigjoiner is used */ + intel_bigjoiner_adjust_timings(crtc_state, pipe_mode); + intel_mode_from_crtc_timings(pipe_mode, pipe_mode); + + if (DISPLAY_VER(i915) < 4) { + clock_limit = i915->display.cdclk.max_cdclk_freq * 9 / 10; + + /* + * Enable double wide mode when the dot clock + * is > 90% of the (display) core speed. + */ + if (intel_crtc_supports_double_wide(crtc) && + pipe_mode->crtc_clock > clock_limit) { + clock_limit = i915->max_dotclk_freq; + crtc_state->double_wide = true; + } + } + + if (pipe_mode->crtc_clock > clock_limit) { + drm_dbg_kms(&i915->drm, + "[CRTC:%d:%s] requested pixel clock (%d kHz) too high (max: %d kHz, double wide: %s)\n", + crtc->base.base.id, crtc->base.name, + pipe_mode->crtc_clock, clock_limit, + str_yes_no(crtc_state->double_wide)); + return -EINVAL; + } + + return 0; +} + +static int intel_crtc_compute_config(struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + struct intel_crtc_state *crtc_state = + intel_atomic_get_new_crtc_state(state, crtc); + int ret; + + ret = intel_dpll_crtc_compute_clock(state, crtc); + if (ret) + return ret; + + ret = intel_crtc_compute_pipe_src(crtc_state); + if (ret) + return ret; + + ret = intel_crtc_compute_pipe_mode(crtc_state); + if (ret) + return ret; + + intel_crtc_compute_pixel_rate(crtc_state); + + if (crtc_state->has_pch_encoder) + return ilk_fdi_compute_config(crtc, crtc_state); + + return 0; +} + +static void +intel_reduce_m_n_ratio(u32 *num, u32 *den) +{ + while (*num > DATA_LINK_M_N_MASK || + *den > DATA_LINK_M_N_MASK) { + *num >>= 1; + *den >>= 1; + } +} + +static void compute_m_n(u32 *ret_m, u32 *ret_n, + u32 m, u32 n, u32 constant_n) +{ + if (constant_n) + *ret_n = constant_n; + else + *ret_n = min_t(unsigned int, roundup_pow_of_two(n), DATA_LINK_N_MAX); + + *ret_m = div_u64(mul_u32_u32(m, *ret_n), n); + intel_reduce_m_n_ratio(ret_m, ret_n); +} + +void +intel_link_compute_m_n(u16 bits_per_pixel, int nlanes, + int pixel_clock, int link_clock, + struct intel_link_m_n *m_n, + bool fec_enable) +{ + u32 data_clock = bits_per_pixel * pixel_clock; + + if (fec_enable) + data_clock = intel_dp_mode_to_fec_clock(data_clock); + + /* + * Windows/BIOS uses fixed M/N values always. Follow suit. + * + * Also several DP dongles in particular seem to be fussy + * about too large link M/N values. Presumably the 20bit + * value used by Windows/BIOS is acceptable to everyone. + */ + m_n->tu = 64; + compute_m_n(&m_n->data_m, &m_n->data_n, + data_clock, link_clock * nlanes * 8, + 0x8000000); + + compute_m_n(&m_n->link_m, &m_n->link_n, + pixel_clock, link_clock, + 0x80000); +} + +void intel_panel_sanitize_ssc(struct drm_i915_private *dev_priv) +{ + /* + * There may be no VBT; and if the BIOS enabled SSC we can + * just keep using it to avoid unnecessary flicker. Whereas if the + * BIOS isn't using it, don't assume it will work even if the VBT + * indicates as much. + */ + if (HAS_PCH_IBX(dev_priv) || HAS_PCH_CPT(dev_priv)) { + bool bios_lvds_use_ssc = intel_de_read(dev_priv, + PCH_DREF_CONTROL) & + DREF_SSC1_ENABLE; + + if (dev_priv->display.vbt.lvds_use_ssc != bios_lvds_use_ssc) { + drm_dbg_kms(&dev_priv->drm, + "SSC %s by BIOS, overriding VBT which says %s\n", + str_enabled_disabled(bios_lvds_use_ssc), + str_enabled_disabled(dev_priv->display.vbt.lvds_use_ssc)); + dev_priv->display.vbt.lvds_use_ssc = bios_lvds_use_ssc; + } + } +} + +void intel_zero_m_n(struct intel_link_m_n *m_n) +{ + /* corresponds to 0 register value */ + memset(m_n, 0, sizeof(*m_n)); + m_n->tu = 1; +} + +void intel_set_m_n(struct drm_i915_private *i915, + const struct intel_link_m_n *m_n, + i915_reg_t data_m_reg, i915_reg_t data_n_reg, + i915_reg_t link_m_reg, i915_reg_t link_n_reg) +{ + intel_de_write(i915, data_m_reg, TU_SIZE(m_n->tu) | m_n->data_m); + intel_de_write(i915, data_n_reg, m_n->data_n); + intel_de_write(i915, link_m_reg, m_n->link_m); + /* + * On BDW+ writing LINK_N arms the double buffered update + * of all the M/N registers, so it must be written last. + */ + intel_de_write(i915, link_n_reg, m_n->link_n); +} + +bool intel_cpu_transcoder_has_m2_n2(struct drm_i915_private *dev_priv, + enum transcoder transcoder) +{ + if (IS_HASWELL(dev_priv)) + return transcoder == TRANSCODER_EDP; + + return IS_DISPLAY_VER(dev_priv, 5, 7) || IS_CHERRYVIEW(dev_priv); +} + +void intel_cpu_transcoder_set_m1_n1(struct intel_crtc *crtc, + enum transcoder transcoder, + const struct intel_link_m_n *m_n) +{ + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + enum pipe pipe = crtc->pipe; + + if (DISPLAY_VER(dev_priv) >= 5) + intel_set_m_n(dev_priv, m_n, + PIPE_DATA_M1(transcoder), PIPE_DATA_N1(transcoder), + PIPE_LINK_M1(transcoder), PIPE_LINK_N1(transcoder)); + else + intel_set_m_n(dev_priv, m_n, + PIPE_DATA_M_G4X(pipe), PIPE_DATA_N_G4X(pipe), + PIPE_LINK_M_G4X(pipe), PIPE_LINK_N_G4X(pipe)); +} + +void intel_cpu_transcoder_set_m2_n2(struct intel_crtc *crtc, + enum transcoder transcoder, + const struct intel_link_m_n *m_n) +{ + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + + if (!intel_cpu_transcoder_has_m2_n2(dev_priv, transcoder)) + return; + + intel_set_m_n(dev_priv, m_n, + PIPE_DATA_M2(transcoder), PIPE_DATA_N2(transcoder), + PIPE_LINK_M2(transcoder), PIPE_LINK_N2(transcoder)); +} + +static void intel_set_transcoder_timings(const struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + enum pipe pipe = crtc->pipe; + enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; + const struct drm_display_mode *adjusted_mode = &crtc_state->hw.adjusted_mode; + u32 crtc_vdisplay, crtc_vtotal, crtc_vblank_start, crtc_vblank_end; + int vsyncshift = 0; + + /* We need to be careful not to changed the adjusted mode, for otherwise + * the hw state checker will get angry at the mismatch. */ + crtc_vdisplay = adjusted_mode->crtc_vdisplay; + crtc_vtotal = adjusted_mode->crtc_vtotal; + crtc_vblank_start = adjusted_mode->crtc_vblank_start; + crtc_vblank_end = adjusted_mode->crtc_vblank_end; + + if (adjusted_mode->flags & DRM_MODE_FLAG_INTERLACE) { + /* the chip adds 2 halflines automatically */ + crtc_vtotal -= 1; + crtc_vblank_end -= 1; + + if (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_SDVO)) + vsyncshift = (adjusted_mode->crtc_htotal - 1) / 2; + else + vsyncshift = adjusted_mode->crtc_hsync_start - + adjusted_mode->crtc_htotal / 2; + if (vsyncshift < 0) + vsyncshift += adjusted_mode->crtc_htotal; + } + + /* + * VBLANK_START no longer works on ADL+, instead we must use + * TRANS_SET_CONTEXT_LATENCY to configure the pipe vblank start. + */ + if (DISPLAY_VER(dev_priv) >= 13) { + intel_de_write(dev_priv, TRANS_SET_CONTEXT_LATENCY(cpu_transcoder), + crtc_vblank_start - crtc_vdisplay); + + /* + * VBLANK_START not used by hw, just clear it + * to make it stand out in register dumps. + */ + crtc_vblank_start = 1; + } + + if (DISPLAY_VER(dev_priv) > 3) + intel_de_write(dev_priv, TRANS_VSYNCSHIFT(cpu_transcoder), + vsyncshift); + + intel_de_write(dev_priv, TRANS_HTOTAL(cpu_transcoder), + HACTIVE(adjusted_mode->crtc_hdisplay - 1) | + HTOTAL(adjusted_mode->crtc_htotal - 1)); + intel_de_write(dev_priv, TRANS_HBLANK(cpu_transcoder), + HBLANK_START(adjusted_mode->crtc_hblank_start - 1) | + HBLANK_END(adjusted_mode->crtc_hblank_end - 1)); + intel_de_write(dev_priv, TRANS_HSYNC(cpu_transcoder), + HSYNC_START(adjusted_mode->crtc_hsync_start - 1) | + HSYNC_END(adjusted_mode->crtc_hsync_end - 1)); + + intel_de_write(dev_priv, TRANS_VTOTAL(cpu_transcoder), + VACTIVE(crtc_vdisplay - 1) | + VTOTAL(crtc_vtotal - 1)); + intel_de_write(dev_priv, TRANS_VBLANK(cpu_transcoder), + VBLANK_START(crtc_vblank_start - 1) | + VBLANK_END(crtc_vblank_end - 1)); + intel_de_write(dev_priv, TRANS_VSYNC(cpu_transcoder), + VSYNC_START(adjusted_mode->crtc_vsync_start - 1) | + VSYNC_END(adjusted_mode->crtc_vsync_end - 1)); + + /* Workaround: when the EDP input selection is B, the VTOTAL_B must be + * programmed with the VTOTAL_EDP value. Same for VTOTAL_C. This is + * documented on the DDI_FUNC_CTL register description, EDP Input Select + * bits. */ + if (IS_HASWELL(dev_priv) && cpu_transcoder == TRANSCODER_EDP && + (pipe == PIPE_B || pipe == PIPE_C)) + intel_de_write(dev_priv, TRANS_VTOTAL(pipe), + VACTIVE(crtc_vdisplay - 1) | + VTOTAL(crtc_vtotal - 1)); +} + +static void intel_set_pipe_src_size(const struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + int width = drm_rect_width(&crtc_state->pipe_src); + int height = drm_rect_height(&crtc_state->pipe_src); + enum pipe pipe = crtc->pipe; + + /* pipesrc controls the size that is scaled from, which should + * always be the user's requested size. + */ + intel_de_write(dev_priv, PIPESRC(pipe), + PIPESRC_WIDTH(width - 1) | PIPESRC_HEIGHT(height - 1)); +} + +static bool intel_pipe_is_interlaced(const struct intel_crtc_state *crtc_state) +{ + struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev); + enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; + + if (DISPLAY_VER(dev_priv) == 2) + return false; + + if (DISPLAY_VER(dev_priv) >= 9 || + IS_BROADWELL(dev_priv) || IS_HASWELL(dev_priv)) + return intel_de_read(dev_priv, TRANSCONF(cpu_transcoder)) & TRANSCONF_INTERLACE_MASK_HSW; + else + return intel_de_read(dev_priv, TRANSCONF(cpu_transcoder)) & TRANSCONF_INTERLACE_MASK; +} + +static void intel_get_transcoder_timings(struct intel_crtc *crtc, + struct intel_crtc_state *pipe_config) +{ + struct drm_device *dev = crtc->base.dev; + struct drm_i915_private *dev_priv = to_i915(dev); + enum transcoder cpu_transcoder = pipe_config->cpu_transcoder; + struct drm_display_mode *adjusted_mode = &pipe_config->hw.adjusted_mode; + u32 tmp; + + tmp = intel_de_read(dev_priv, TRANS_HTOTAL(cpu_transcoder)); + adjusted_mode->crtc_hdisplay = REG_FIELD_GET(HACTIVE_MASK, tmp) + 1; + adjusted_mode->crtc_htotal = REG_FIELD_GET(HTOTAL_MASK, tmp) + 1; + + if (!transcoder_is_dsi(cpu_transcoder)) { + tmp = intel_de_read(dev_priv, TRANS_HBLANK(cpu_transcoder)); + adjusted_mode->crtc_hblank_start = REG_FIELD_GET(HBLANK_START_MASK, tmp) + 1; + adjusted_mode->crtc_hblank_end = REG_FIELD_GET(HBLANK_END_MASK, tmp) + 1; + } + + tmp = intel_de_read(dev_priv, TRANS_HSYNC(cpu_transcoder)); + adjusted_mode->crtc_hsync_start = REG_FIELD_GET(HSYNC_START_MASK, tmp) + 1; + adjusted_mode->crtc_hsync_end = REG_FIELD_GET(HSYNC_END_MASK, tmp) + 1; + + tmp = intel_de_read(dev_priv, TRANS_VTOTAL(cpu_transcoder)); + adjusted_mode->crtc_vdisplay = REG_FIELD_GET(VACTIVE_MASK, tmp) + 1; + adjusted_mode->crtc_vtotal = REG_FIELD_GET(VTOTAL_MASK, tmp) + 1; + + /* FIXME TGL+ DSI transcoders have this! */ + if (!transcoder_is_dsi(cpu_transcoder)) { + tmp = intel_de_read(dev_priv, TRANS_VBLANK(cpu_transcoder)); + adjusted_mode->crtc_vblank_start = REG_FIELD_GET(VBLANK_START_MASK, tmp) + 1; + adjusted_mode->crtc_vblank_end = REG_FIELD_GET(VBLANK_END_MASK, tmp) + 1; + } + tmp = intel_de_read(dev_priv, TRANS_VSYNC(cpu_transcoder)); + adjusted_mode->crtc_vsync_start = REG_FIELD_GET(VSYNC_START_MASK, tmp) + 1; + adjusted_mode->crtc_vsync_end = REG_FIELD_GET(VSYNC_END_MASK, tmp) + 1; + + if (intel_pipe_is_interlaced(pipe_config)) { + adjusted_mode->flags |= DRM_MODE_FLAG_INTERLACE; + adjusted_mode->crtc_vtotal += 1; + adjusted_mode->crtc_vblank_end += 1; + } + + if (DISPLAY_VER(dev_priv) >= 13 && !transcoder_is_dsi(cpu_transcoder)) + adjusted_mode->crtc_vblank_start = + adjusted_mode->crtc_vdisplay + + intel_de_read(dev_priv, TRANS_SET_CONTEXT_LATENCY(cpu_transcoder)); +} + +static void intel_bigjoiner_adjust_pipe_src(struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + int num_pipes = intel_bigjoiner_num_pipes(crtc_state); + enum pipe master_pipe, pipe = crtc->pipe; + int width; + + if (num_pipes < 2) + return; + + master_pipe = bigjoiner_master_pipe(crtc_state); + width = drm_rect_width(&crtc_state->pipe_src); + + drm_rect_translate_to(&crtc_state->pipe_src, + (pipe - master_pipe) * width, 0); +} + +static void intel_get_pipe_src_size(struct intel_crtc *crtc, + struct intel_crtc_state *pipe_config) +{ + struct drm_device *dev = crtc->base.dev; + struct drm_i915_private *dev_priv = to_i915(dev); + u32 tmp; + + tmp = intel_de_read(dev_priv, PIPESRC(crtc->pipe)); + + drm_rect_init(&pipe_config->pipe_src, 0, 0, + REG_FIELD_GET(PIPESRC_WIDTH_MASK, tmp) + 1, + REG_FIELD_GET(PIPESRC_HEIGHT_MASK, tmp) + 1); + + intel_bigjoiner_adjust_pipe_src(pipe_config); +} + +void i9xx_set_pipeconf(const struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; + u32 val = 0; + + /* + * - We keep both pipes enabled on 830 + * - During modeset the pipe is still disabled and must remain so + * - During fastset the pipe is already enabled and must remain so + */ + if (IS_I830(dev_priv) || !intel_crtc_needs_modeset(crtc_state)) + val |= TRANSCONF_ENABLE; + + if (crtc_state->double_wide) + val |= TRANSCONF_DOUBLE_WIDE; + + /* only g4x and later have fancy bpc/dither controls */ + if (IS_G4X(dev_priv) || IS_VALLEYVIEW(dev_priv) || + IS_CHERRYVIEW(dev_priv)) { + /* Bspec claims that we can't use dithering for 30bpp pipes. */ + if (crtc_state->dither && crtc_state->pipe_bpp != 30) + val |= TRANSCONF_DITHER_EN | + TRANSCONF_DITHER_TYPE_SP; + + switch (crtc_state->pipe_bpp) { + default: + /* Case prevented by intel_choose_pipe_bpp_dither. */ + MISSING_CASE(crtc_state->pipe_bpp); + fallthrough; + case 18: + val |= TRANSCONF_BPC_6; + break; + case 24: + val |= TRANSCONF_BPC_8; + break; + case 30: + val |= TRANSCONF_BPC_10; + break; + } + } + + if (crtc_state->hw.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE) { + if (DISPLAY_VER(dev_priv) < 4 || + intel_crtc_has_type(crtc_state, INTEL_OUTPUT_SDVO)) + val |= TRANSCONF_INTERLACE_W_FIELD_INDICATION; + else + val |= TRANSCONF_INTERLACE_W_SYNC_SHIFT; + } else { + val |= TRANSCONF_INTERLACE_PROGRESSIVE; + } + + if ((IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) && + crtc_state->limited_color_range) + val |= TRANSCONF_COLOR_RANGE_SELECT; + + val |= TRANSCONF_GAMMA_MODE(crtc_state->gamma_mode); + + if (crtc_state->wgc_enable) + val |= TRANSCONF_WGC_ENABLE; + + val |= TRANSCONF_FRAME_START_DELAY(crtc_state->framestart_delay - 1); + + intel_de_write(dev_priv, TRANSCONF(cpu_transcoder), val); + intel_de_posting_read(dev_priv, TRANSCONF(cpu_transcoder)); +} + +static bool i9xx_has_pfit(struct drm_i915_private *dev_priv) +{ + if (IS_I830(dev_priv)) + return false; + + return DISPLAY_VER(dev_priv) >= 4 || + IS_PINEVIEW(dev_priv) || IS_MOBILE(dev_priv); +} + +static void i9xx_get_pfit_config(struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + enum pipe pipe; + u32 tmp; + + if (!i9xx_has_pfit(dev_priv)) + return; + + tmp = intel_de_read(dev_priv, PFIT_CONTROL); + if (!(tmp & PFIT_ENABLE)) + return; + + /* Check whether the pfit is attached to our pipe. */ + if (DISPLAY_VER(dev_priv) >= 4) + pipe = REG_FIELD_GET(PFIT_PIPE_MASK, tmp); + else + pipe = PIPE_B; + + if (pipe != crtc->pipe) + return; + + crtc_state->gmch_pfit.control = tmp; + crtc_state->gmch_pfit.pgm_ratios = + intel_de_read(dev_priv, PFIT_PGM_RATIOS); +} + +static void vlv_crtc_clock_get(struct intel_crtc *crtc, + struct intel_crtc_state *pipe_config) +{ + struct drm_device *dev = crtc->base.dev; + struct drm_i915_private *dev_priv = to_i915(dev); + enum pipe pipe = crtc->pipe; + struct dpll clock; + u32 mdiv; + int refclk = 100000; + + /* In case of DSI, DPLL will not be used */ + if ((pipe_config->dpll_hw_state.dpll & DPLL_VCO_ENABLE) == 0) + return; + + vlv_dpio_get(dev_priv); + mdiv = vlv_dpio_read(dev_priv, pipe, VLV_PLL_DW3(pipe)); + vlv_dpio_put(dev_priv); + + clock.m1 = (mdiv >> DPIO_M1DIV_SHIFT) & 7; + clock.m2 = mdiv & DPIO_M2DIV_MASK; + clock.n = (mdiv >> DPIO_N_SHIFT) & 0xf; + clock.p1 = (mdiv >> DPIO_P1_SHIFT) & 7; + clock.p2 = (mdiv >> DPIO_P2_SHIFT) & 0x1f; + + pipe_config->port_clock = vlv_calc_dpll_params(refclk, &clock); +} + +static void chv_crtc_clock_get(struct intel_crtc *crtc, + struct intel_crtc_state *pipe_config) +{ + struct drm_device *dev = crtc->base.dev; + struct drm_i915_private *dev_priv = to_i915(dev); + enum pipe pipe = crtc->pipe; + enum dpio_channel port = vlv_pipe_to_channel(pipe); + struct dpll clock; + u32 cmn_dw13, pll_dw0, pll_dw1, pll_dw2, pll_dw3; + int refclk = 100000; + + /* In case of DSI, DPLL will not be used */ + if ((pipe_config->dpll_hw_state.dpll & DPLL_VCO_ENABLE) == 0) + return; + + vlv_dpio_get(dev_priv); + cmn_dw13 = vlv_dpio_read(dev_priv, pipe, CHV_CMN_DW13(port)); + pll_dw0 = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW0(port)); + pll_dw1 = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW1(port)); + pll_dw2 = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW2(port)); + pll_dw3 = vlv_dpio_read(dev_priv, pipe, CHV_PLL_DW3(port)); + vlv_dpio_put(dev_priv); + + clock.m1 = (pll_dw1 & 0x7) == DPIO_CHV_M1_DIV_BY_2 ? 2 : 0; + clock.m2 = (pll_dw0 & 0xff) << 22; + if (pll_dw3 & DPIO_CHV_FRAC_DIV_EN) + clock.m2 |= pll_dw2 & 0x3fffff; + clock.n = (pll_dw1 >> DPIO_CHV_N_DIV_SHIFT) & 0xf; + clock.p1 = (cmn_dw13 >> DPIO_CHV_P1_DIV_SHIFT) & 0x7; + clock.p2 = (cmn_dw13 >> DPIO_CHV_P2_DIV_SHIFT) & 0x1f; + + pipe_config->port_clock = chv_calc_dpll_params(refclk, &clock); +} + +static enum intel_output_format +bdw_get_pipe_misc_output_format(struct intel_crtc *crtc) +{ + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + u32 tmp; + + tmp = intel_de_read(dev_priv, PIPE_MISC(crtc->pipe)); + + if (tmp & PIPE_MISC_YUV420_ENABLE) { + /* We support 4:2:0 in full blend mode only */ + drm_WARN_ON(&dev_priv->drm, + (tmp & PIPE_MISC_YUV420_MODE_FULL_BLEND) == 0); + + return INTEL_OUTPUT_FORMAT_YCBCR420; + } else if (tmp & PIPE_MISC_OUTPUT_COLORSPACE_YUV) { + return INTEL_OUTPUT_FORMAT_YCBCR444; + } else { + return INTEL_OUTPUT_FORMAT_RGB; + } +} + +static void i9xx_get_pipe_color_config(struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct intel_plane *plane = to_intel_plane(crtc->base.primary); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + enum i9xx_plane_id i9xx_plane = plane->i9xx_plane; + u32 tmp; + + tmp = intel_de_read(dev_priv, DSPCNTR(i9xx_plane)); + + if (tmp & DISP_PIPE_GAMMA_ENABLE) + crtc_state->gamma_enable = true; + + if (!HAS_GMCH(dev_priv) && + tmp & DISP_PIPE_CSC_ENABLE) + crtc_state->csc_enable = true; +} + +static bool i9xx_get_pipe_config(struct intel_crtc *crtc, + struct intel_crtc_state *pipe_config) +{ + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + enum intel_display_power_domain power_domain; + intel_wakeref_t wakeref; + u32 tmp; + bool ret; + + power_domain = POWER_DOMAIN_PIPE(crtc->pipe); + wakeref = intel_display_power_get_if_enabled(dev_priv, power_domain); + if (!wakeref) + return false; + + pipe_config->output_format = INTEL_OUTPUT_FORMAT_RGB; + pipe_config->sink_format = pipe_config->output_format; + pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe; + pipe_config->shared_dpll = NULL; + + ret = false; + + tmp = intel_de_read(dev_priv, TRANSCONF(pipe_config->cpu_transcoder)); + if (!(tmp & TRANSCONF_ENABLE)) + goto out; + + if (IS_G4X(dev_priv) || IS_VALLEYVIEW(dev_priv) || + IS_CHERRYVIEW(dev_priv)) { + switch (tmp & TRANSCONF_BPC_MASK) { + case TRANSCONF_BPC_6: + pipe_config->pipe_bpp = 18; + break; + case TRANSCONF_BPC_8: + pipe_config->pipe_bpp = 24; + break; + case TRANSCONF_BPC_10: + pipe_config->pipe_bpp = 30; + break; + default: + MISSING_CASE(tmp); + break; + } + } + + if ((IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) && + (tmp & TRANSCONF_COLOR_RANGE_SELECT)) + pipe_config->limited_color_range = true; + + pipe_config->gamma_mode = REG_FIELD_GET(TRANSCONF_GAMMA_MODE_MASK_I9XX, tmp); + + pipe_config->framestart_delay = REG_FIELD_GET(TRANSCONF_FRAME_START_DELAY_MASK, tmp) + 1; + + if ((IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) && + (tmp & TRANSCONF_WGC_ENABLE)) + pipe_config->wgc_enable = true; + + if (IS_CHERRYVIEW(dev_priv)) + pipe_config->cgm_mode = intel_de_read(dev_priv, + CGM_PIPE_MODE(crtc->pipe)); + + i9xx_get_pipe_color_config(pipe_config); + intel_color_get_config(pipe_config); + + if (DISPLAY_VER(dev_priv) < 4) + pipe_config->double_wide = tmp & TRANSCONF_DOUBLE_WIDE; + + intel_get_transcoder_timings(crtc, pipe_config); + intel_get_pipe_src_size(crtc, pipe_config); + + i9xx_get_pfit_config(pipe_config); + + if (DISPLAY_VER(dev_priv) >= 4) { + /* No way to read it out on pipes B and C */ + if (IS_CHERRYVIEW(dev_priv) && crtc->pipe != PIPE_A) + tmp = dev_priv->display.state.chv_dpll_md[crtc->pipe]; + else + tmp = intel_de_read(dev_priv, DPLL_MD(crtc->pipe)); + pipe_config->pixel_multiplier = + ((tmp & DPLL_MD_UDI_MULTIPLIER_MASK) + >> DPLL_MD_UDI_MULTIPLIER_SHIFT) + 1; + pipe_config->dpll_hw_state.dpll_md = tmp; + } else if (IS_I945G(dev_priv) || IS_I945GM(dev_priv) || + IS_G33(dev_priv) || IS_PINEVIEW(dev_priv)) { + tmp = intel_de_read(dev_priv, DPLL(crtc->pipe)); + pipe_config->pixel_multiplier = + ((tmp & SDVO_MULTIPLIER_MASK) + >> SDVO_MULTIPLIER_SHIFT_HIRES) + 1; + } else { + /* Note that on i915G/GM the pixel multiplier is in the sdvo + * port and will be fixed up in the encoder->get_config + * function. */ + pipe_config->pixel_multiplier = 1; + } + pipe_config->dpll_hw_state.dpll = intel_de_read(dev_priv, + DPLL(crtc->pipe)); + if (!IS_VALLEYVIEW(dev_priv) && !IS_CHERRYVIEW(dev_priv)) { + pipe_config->dpll_hw_state.fp0 = intel_de_read(dev_priv, + FP0(crtc->pipe)); + pipe_config->dpll_hw_state.fp1 = intel_de_read(dev_priv, + FP1(crtc->pipe)); + } else { + /* Mask out read-only status bits. */ + pipe_config->dpll_hw_state.dpll &= ~(DPLL_LOCK_VLV | + DPLL_PORTC_READY_MASK | + DPLL_PORTB_READY_MASK); + } + + if (IS_CHERRYVIEW(dev_priv)) + chv_crtc_clock_get(crtc, pipe_config); + else if (IS_VALLEYVIEW(dev_priv)) + vlv_crtc_clock_get(crtc, pipe_config); + else + i9xx_crtc_clock_get(crtc, pipe_config); + + /* + * Normally the dotclock is filled in by the encoder .get_config() + * but in case the pipe is enabled w/o any ports we need a sane + * default. + */ + pipe_config->hw.adjusted_mode.crtc_clock = + pipe_config->port_clock / pipe_config->pixel_multiplier; + + ret = true; + +out: + intel_display_power_put(dev_priv, power_domain, wakeref); + + return ret; +} + +void ilk_set_pipeconf(const struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; + u32 val = 0; + + /* + * - During modeset the pipe is still disabled and must remain so + * - During fastset the pipe is already enabled and must remain so + */ + if (!intel_crtc_needs_modeset(crtc_state)) + val |= TRANSCONF_ENABLE; + + switch (crtc_state->pipe_bpp) { + default: + /* Case prevented by intel_choose_pipe_bpp_dither. */ + MISSING_CASE(crtc_state->pipe_bpp); + fallthrough; + case 18: + val |= TRANSCONF_BPC_6; + break; + case 24: + val |= TRANSCONF_BPC_8; + break; + case 30: + val |= TRANSCONF_BPC_10; + break; + case 36: + val |= TRANSCONF_BPC_12; + break; + } + + if (crtc_state->dither) + val |= TRANSCONF_DITHER_EN | TRANSCONF_DITHER_TYPE_SP; + + if (crtc_state->hw.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE) + val |= TRANSCONF_INTERLACE_IF_ID_ILK; + else + val |= TRANSCONF_INTERLACE_PF_PD_ILK; + + /* + * This would end up with an odd purple hue over + * the entire display. Make sure we don't do it. + */ + drm_WARN_ON(&dev_priv->drm, crtc_state->limited_color_range && + crtc_state->output_format != INTEL_OUTPUT_FORMAT_RGB); + + if (crtc_state->limited_color_range && + !intel_crtc_has_type(crtc_state, INTEL_OUTPUT_SDVO)) + val |= TRANSCONF_COLOR_RANGE_SELECT; + + if (crtc_state->output_format != INTEL_OUTPUT_FORMAT_RGB) + val |= TRANSCONF_OUTPUT_COLORSPACE_YUV709; + + val |= TRANSCONF_GAMMA_MODE(crtc_state->gamma_mode); + + val |= TRANSCONF_FRAME_START_DELAY(crtc_state->framestart_delay - 1); + val |= TRANSCONF_MSA_TIMING_DELAY(crtc_state->msa_timing_delay); + + intel_de_write(dev_priv, TRANSCONF(cpu_transcoder), val); + intel_de_posting_read(dev_priv, TRANSCONF(cpu_transcoder)); +} + +static void hsw_set_transconf(const struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + enum transcoder cpu_transcoder = crtc_state->cpu_transcoder; + u32 val = 0; + + /* + * - During modeset the pipe is still disabled and must remain so + * - During fastset the pipe is already enabled and must remain so + */ + if (!intel_crtc_needs_modeset(crtc_state)) + val |= TRANSCONF_ENABLE; + + if (IS_HASWELL(dev_priv) && crtc_state->dither) + val |= TRANSCONF_DITHER_EN | TRANSCONF_DITHER_TYPE_SP; + + if (crtc_state->hw.adjusted_mode.flags & DRM_MODE_FLAG_INTERLACE) + val |= TRANSCONF_INTERLACE_IF_ID_ILK; + else + val |= TRANSCONF_INTERLACE_PF_PD_ILK; + + if (IS_HASWELL(dev_priv) && + crtc_state->output_format != INTEL_OUTPUT_FORMAT_RGB) + val |= TRANSCONF_OUTPUT_COLORSPACE_YUV_HSW; + + intel_de_write(dev_priv, TRANSCONF(cpu_transcoder), val); + intel_de_posting_read(dev_priv, TRANSCONF(cpu_transcoder)); +} + +static void bdw_set_pipe_misc(const struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + u32 val = 0; + + switch (crtc_state->pipe_bpp) { + case 18: + val |= PIPE_MISC_BPC_6; + break; + case 24: + val |= PIPE_MISC_BPC_8; + break; + case 30: + val |= PIPE_MISC_BPC_10; + break; + case 36: + /* Port output 12BPC defined for ADLP+ */ + if (DISPLAY_VER(dev_priv) > 12) + val |= PIPE_MISC_BPC_12_ADLP; + break; + default: + MISSING_CASE(crtc_state->pipe_bpp); + break; + } + + if (crtc_state->dither) + val |= PIPE_MISC_DITHER_ENABLE | PIPE_MISC_DITHER_TYPE_SP; + + if (crtc_state->output_format == INTEL_OUTPUT_FORMAT_YCBCR420 || + crtc_state->output_format == INTEL_OUTPUT_FORMAT_YCBCR444) + val |= PIPE_MISC_OUTPUT_COLORSPACE_YUV; + + if (crtc_state->output_format == INTEL_OUTPUT_FORMAT_YCBCR420) + val |= PIPE_MISC_YUV420_ENABLE | + PIPE_MISC_YUV420_MODE_FULL_BLEND; + + if (DISPLAY_VER(dev_priv) >= 11 && is_hdr_mode(crtc_state)) + val |= PIPE_MISC_HDR_MODE_PRECISION; + + if (DISPLAY_VER(dev_priv) >= 12) + val |= PIPE_MISC_PIXEL_ROUNDING_TRUNC; + + /* allow PSR with sprite enabled */ + if (IS_BROADWELL(dev_priv)) + val |= PIPE_MISC_PSR_MASK_SPRITE_ENABLE; + + intel_de_write(dev_priv, PIPE_MISC(crtc->pipe), val); +} + +int bdw_get_pipe_misc_bpp(struct intel_crtc *crtc) +{ + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + u32 tmp; + + tmp = intel_de_read(dev_priv, PIPE_MISC(crtc->pipe)); + + switch (tmp & PIPE_MISC_BPC_MASK) { + case PIPE_MISC_BPC_6: + return 18; + case PIPE_MISC_BPC_8: + return 24; + case PIPE_MISC_BPC_10: + return 30; + /* + * PORT OUTPUT 12 BPC defined for ADLP+. + * + * TODO: + * For previous platforms with DSI interface, bits 5:7 + * are used for storing pipe_bpp irrespective of dithering. + * Since the value of 12 BPC is not defined for these bits + * on older platforms, need to find a workaround for 12 BPC + * MIPI DSI HW readout. + */ + case PIPE_MISC_BPC_12_ADLP: + if (DISPLAY_VER(dev_priv) > 12) + return 36; + fallthrough; + default: + MISSING_CASE(tmp); + return 0; + } +} + +int ilk_get_lanes_required(int target_clock, int link_bw, int bpp) +{ + /* + * Account for spread spectrum to avoid + * oversubscribing the link. Max center spread + * is 2.5%; use 5% for safety's sake. + */ + u32 bps = target_clock * bpp * 21 / 20; + return DIV_ROUND_UP(bps, link_bw * 8); +} + +void intel_get_m_n(struct drm_i915_private *i915, + struct intel_link_m_n *m_n, + i915_reg_t data_m_reg, i915_reg_t data_n_reg, + i915_reg_t link_m_reg, i915_reg_t link_n_reg) +{ + m_n->link_m = intel_de_read(i915, link_m_reg) & DATA_LINK_M_N_MASK; + m_n->link_n = intel_de_read(i915, link_n_reg) & DATA_LINK_M_N_MASK; + m_n->data_m = intel_de_read(i915, data_m_reg) & DATA_LINK_M_N_MASK; + m_n->data_n = intel_de_read(i915, data_n_reg) & DATA_LINK_M_N_MASK; + m_n->tu = REG_FIELD_GET(TU_SIZE_MASK, intel_de_read(i915, data_m_reg)) + 1; +} + +void intel_cpu_transcoder_get_m1_n1(struct intel_crtc *crtc, + enum transcoder transcoder, + struct intel_link_m_n *m_n) +{ + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + enum pipe pipe = crtc->pipe; + + if (DISPLAY_VER(dev_priv) >= 5) + intel_get_m_n(dev_priv, m_n, + PIPE_DATA_M1(transcoder), PIPE_DATA_N1(transcoder), + PIPE_LINK_M1(transcoder), PIPE_LINK_N1(transcoder)); + else + intel_get_m_n(dev_priv, m_n, + PIPE_DATA_M_G4X(pipe), PIPE_DATA_N_G4X(pipe), + PIPE_LINK_M_G4X(pipe), PIPE_LINK_N_G4X(pipe)); +} + +void intel_cpu_transcoder_get_m2_n2(struct intel_crtc *crtc, + enum transcoder transcoder, + struct intel_link_m_n *m_n) +{ + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + + if (!intel_cpu_transcoder_has_m2_n2(dev_priv, transcoder)) + return; + + intel_get_m_n(dev_priv, m_n, + PIPE_DATA_M2(transcoder), PIPE_DATA_N2(transcoder), + PIPE_LINK_M2(transcoder), PIPE_LINK_N2(transcoder)); +} + +static void ilk_get_pfit_config(struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + u32 ctl, pos, size; + enum pipe pipe; + + ctl = intel_de_read(dev_priv, PF_CTL(crtc->pipe)); + if ((ctl & PF_ENABLE) == 0) + return; + + if (IS_IVYBRIDGE(dev_priv) || IS_HASWELL(dev_priv)) + pipe = REG_FIELD_GET(PF_PIPE_SEL_MASK_IVB, ctl); + else + pipe = crtc->pipe; + + crtc_state->pch_pfit.enabled = true; + + pos = intel_de_read(dev_priv, PF_WIN_POS(crtc->pipe)); + size = intel_de_read(dev_priv, PF_WIN_SZ(crtc->pipe)); + + drm_rect_init(&crtc_state->pch_pfit.dst, + REG_FIELD_GET(PF_WIN_XPOS_MASK, pos), + REG_FIELD_GET(PF_WIN_YPOS_MASK, pos), + REG_FIELD_GET(PF_WIN_XSIZE_MASK, size), + REG_FIELD_GET(PF_WIN_YSIZE_MASK, size)); + + /* + * We currently do not free assignements of panel fitters on + * ivb/hsw (since we don't use the higher upscaling modes which + * differentiates them) so just WARN about this case for now. + */ + drm_WARN_ON(&dev_priv->drm, pipe != crtc->pipe); +} + +static bool ilk_get_pipe_config(struct intel_crtc *crtc, + struct intel_crtc_state *pipe_config) +{ + struct drm_device *dev = crtc->base.dev; + struct drm_i915_private *dev_priv = to_i915(dev); + enum intel_display_power_domain power_domain; + intel_wakeref_t wakeref; + u32 tmp; + bool ret; + + power_domain = POWER_DOMAIN_PIPE(crtc->pipe); + wakeref = intel_display_power_get_if_enabled(dev_priv, power_domain); + if (!wakeref) + return false; + + pipe_config->cpu_transcoder = (enum transcoder) crtc->pipe; + pipe_config->shared_dpll = NULL; + + ret = false; + tmp = intel_de_read(dev_priv, TRANSCONF(pipe_config->cpu_transcoder)); + if (!(tmp & TRANSCONF_ENABLE)) + goto out; + + switch (tmp & TRANSCONF_BPC_MASK) { + case TRANSCONF_BPC_6: + pipe_config->pipe_bpp = 18; + break; + case TRANSCONF_BPC_8: + pipe_config->pipe_bpp = 24; + break; + case TRANSCONF_BPC_10: + pipe_config->pipe_bpp = 30; + break; + case TRANSCONF_BPC_12: + pipe_config->pipe_bpp = 36; + break; + default: + break; + } + + if (tmp & TRANSCONF_COLOR_RANGE_SELECT) + pipe_config->limited_color_range = true; + + switch (tmp & TRANSCONF_OUTPUT_COLORSPACE_MASK) { + case TRANSCONF_OUTPUT_COLORSPACE_YUV601: + case TRANSCONF_OUTPUT_COLORSPACE_YUV709: + pipe_config->output_format = INTEL_OUTPUT_FORMAT_YCBCR444; + break; + default: + pipe_config->output_format = INTEL_OUTPUT_FORMAT_RGB; + break; + } + + pipe_config->sink_format = pipe_config->output_format; + + pipe_config->gamma_mode = REG_FIELD_GET(TRANSCONF_GAMMA_MODE_MASK_ILK, tmp); + + pipe_config->framestart_delay = REG_FIELD_GET(TRANSCONF_FRAME_START_DELAY_MASK, tmp) + 1; + + pipe_config->msa_timing_delay = REG_FIELD_GET(TRANSCONF_MSA_TIMING_DELAY_MASK, tmp); + + pipe_config->csc_mode = intel_de_read(dev_priv, + PIPE_CSC_MODE(crtc->pipe)); + + i9xx_get_pipe_color_config(pipe_config); + intel_color_get_config(pipe_config); + + pipe_config->pixel_multiplier = 1; + + ilk_pch_get_config(pipe_config); + + intel_get_transcoder_timings(crtc, pipe_config); + intel_get_pipe_src_size(crtc, pipe_config); + + ilk_get_pfit_config(pipe_config); + + ret = true; + +out: + intel_display_power_put(dev_priv, power_domain, wakeref); + + return ret; +} + +static u8 bigjoiner_pipes(struct drm_i915_private *i915) +{ + u8 pipes; + + if (DISPLAY_VER(i915) >= 12) + pipes = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C) | BIT(PIPE_D); + else if (DISPLAY_VER(i915) >= 11) + pipes = BIT(PIPE_B) | BIT(PIPE_C); + else + pipes = 0; + + return pipes & DISPLAY_RUNTIME_INFO(i915)->pipe_mask; +} + +static bool transcoder_ddi_func_is_enabled(struct drm_i915_private *dev_priv, + enum transcoder cpu_transcoder) +{ + enum intel_display_power_domain power_domain; + intel_wakeref_t wakeref; + u32 tmp = 0; + + power_domain = POWER_DOMAIN_TRANSCODER(cpu_transcoder); + + with_intel_display_power_if_enabled(dev_priv, power_domain, wakeref) + tmp = intel_de_read(dev_priv, TRANS_DDI_FUNC_CTL(cpu_transcoder)); + + return tmp & TRANS_DDI_FUNC_ENABLE; +} + +static void enabled_bigjoiner_pipes(struct drm_i915_private *dev_priv, + u8 *master_pipes, u8 *slave_pipes) +{ + struct intel_crtc *crtc; + + *master_pipes = 0; + *slave_pipes = 0; + + for_each_intel_crtc_in_pipe_mask(&dev_priv->drm, crtc, + bigjoiner_pipes(dev_priv)) { + enum intel_display_power_domain power_domain; + enum pipe pipe = crtc->pipe; + intel_wakeref_t wakeref; + + power_domain = intel_dsc_power_domain(crtc, (enum transcoder) pipe); + with_intel_display_power_if_enabled(dev_priv, power_domain, wakeref) { + u32 tmp = intel_de_read(dev_priv, ICL_PIPE_DSS_CTL1(pipe)); + + if (!(tmp & BIG_JOINER_ENABLE)) + continue; + + if (tmp & MASTER_BIG_JOINER_ENABLE) + *master_pipes |= BIT(pipe); + else + *slave_pipes |= BIT(pipe); + } + + if (DISPLAY_VER(dev_priv) < 13) + continue; + + power_domain = POWER_DOMAIN_PIPE(pipe); + with_intel_display_power_if_enabled(dev_priv, power_domain, wakeref) { + u32 tmp = intel_de_read(dev_priv, ICL_PIPE_DSS_CTL1(pipe)); + + if (tmp & UNCOMPRESSED_JOINER_MASTER) + *master_pipes |= BIT(pipe); + if (tmp & UNCOMPRESSED_JOINER_SLAVE) + *slave_pipes |= BIT(pipe); + } + } + + /* Bigjoiner pipes should always be consecutive master and slave */ + drm_WARN(&dev_priv->drm, *slave_pipes != *master_pipes << 1, + "Bigjoiner misconfigured (master pipes 0x%x, slave pipes 0x%x)\n", + *master_pipes, *slave_pipes); +} + +static enum pipe get_bigjoiner_master_pipe(enum pipe pipe, u8 master_pipes, u8 slave_pipes) +{ + if ((slave_pipes & BIT(pipe)) == 0) + return pipe; + + /* ignore everything above our pipe */ + master_pipes &= ~GENMASK(7, pipe); + + /* highest remaining bit should be our master pipe */ + return fls(master_pipes) - 1; +} + +static u8 get_bigjoiner_slave_pipes(enum pipe pipe, u8 master_pipes, u8 slave_pipes) +{ + enum pipe master_pipe, next_master_pipe; + + master_pipe = get_bigjoiner_master_pipe(pipe, master_pipes, slave_pipes); + + if ((master_pipes & BIT(master_pipe)) == 0) + return 0; + + /* ignore our master pipe and everything below it */ + master_pipes &= ~GENMASK(master_pipe, 0); + /* make sure a high bit is set for the ffs() */ + master_pipes |= BIT(7); + /* lowest remaining bit should be the next master pipe */ + next_master_pipe = ffs(master_pipes) - 1; + + return slave_pipes & GENMASK(next_master_pipe - 1, master_pipe); +} + +static u8 hsw_panel_transcoders(struct drm_i915_private *i915) +{ + u8 panel_transcoder_mask = BIT(TRANSCODER_EDP); + + if (DISPLAY_VER(i915) >= 11) + panel_transcoder_mask |= BIT(TRANSCODER_DSI_0) | BIT(TRANSCODER_DSI_1); + + return panel_transcoder_mask; +} + +static u8 hsw_enabled_transcoders(struct intel_crtc *crtc) +{ + struct drm_device *dev = crtc->base.dev; + struct drm_i915_private *dev_priv = to_i915(dev); + u8 panel_transcoder_mask = hsw_panel_transcoders(dev_priv); + enum transcoder cpu_transcoder; + u8 master_pipes, slave_pipes; + u8 enabled_transcoders = 0; + + /* + * XXX: Do intel_display_power_get_if_enabled before reading this (for + * consistency and less surprising code; it's in always on power). + */ + for_each_cpu_transcoder_masked(dev_priv, cpu_transcoder, + panel_transcoder_mask) { + enum intel_display_power_domain power_domain; + intel_wakeref_t wakeref; + enum pipe trans_pipe; + u32 tmp = 0; + + power_domain = POWER_DOMAIN_TRANSCODER(cpu_transcoder); + with_intel_display_power_if_enabled(dev_priv, power_domain, wakeref) + tmp = intel_de_read(dev_priv, TRANS_DDI_FUNC_CTL(cpu_transcoder)); + + if (!(tmp & TRANS_DDI_FUNC_ENABLE)) + continue; + + switch (tmp & TRANS_DDI_EDP_INPUT_MASK) { + default: + drm_WARN(dev, 1, + "unknown pipe linked to transcoder %s\n", + transcoder_name(cpu_transcoder)); + fallthrough; + case TRANS_DDI_EDP_INPUT_A_ONOFF: + case TRANS_DDI_EDP_INPUT_A_ON: + trans_pipe = PIPE_A; + break; + case TRANS_DDI_EDP_INPUT_B_ONOFF: + trans_pipe = PIPE_B; + break; + case TRANS_DDI_EDP_INPUT_C_ONOFF: + trans_pipe = PIPE_C; + break; + case TRANS_DDI_EDP_INPUT_D_ONOFF: + trans_pipe = PIPE_D; + break; + } + + if (trans_pipe == crtc->pipe) + enabled_transcoders |= BIT(cpu_transcoder); + } + + /* single pipe or bigjoiner master */ + cpu_transcoder = (enum transcoder) crtc->pipe; + if (transcoder_ddi_func_is_enabled(dev_priv, cpu_transcoder)) + enabled_transcoders |= BIT(cpu_transcoder); + + /* bigjoiner slave -> consider the master pipe's transcoder as well */ + enabled_bigjoiner_pipes(dev_priv, &master_pipes, &slave_pipes); + if (slave_pipes & BIT(crtc->pipe)) { + cpu_transcoder = (enum transcoder) + get_bigjoiner_master_pipe(crtc->pipe, master_pipes, slave_pipes); + if (transcoder_ddi_func_is_enabled(dev_priv, cpu_transcoder)) + enabled_transcoders |= BIT(cpu_transcoder); + } + + return enabled_transcoders; +} + +static bool has_edp_transcoders(u8 enabled_transcoders) +{ + return enabled_transcoders & BIT(TRANSCODER_EDP); +} + +static bool has_dsi_transcoders(u8 enabled_transcoders) +{ + return enabled_transcoders & (BIT(TRANSCODER_DSI_0) | + BIT(TRANSCODER_DSI_1)); +} + +static bool has_pipe_transcoders(u8 enabled_transcoders) +{ + return enabled_transcoders & ~(BIT(TRANSCODER_EDP) | + BIT(TRANSCODER_DSI_0) | + BIT(TRANSCODER_DSI_1)); +} + +static void assert_enabled_transcoders(struct drm_i915_private *i915, + u8 enabled_transcoders) +{ + /* Only one type of transcoder please */ + drm_WARN_ON(&i915->drm, + has_edp_transcoders(enabled_transcoders) + + has_dsi_transcoders(enabled_transcoders) + + has_pipe_transcoders(enabled_transcoders) > 1); + + /* Only DSI transcoders can be ganged */ + drm_WARN_ON(&i915->drm, + !has_dsi_transcoders(enabled_transcoders) && + !is_power_of_2(enabled_transcoders)); +} + +static bool hsw_get_transcoder_state(struct intel_crtc *crtc, + struct intel_crtc_state *pipe_config, + struct intel_display_power_domain_set *power_domain_set) +{ + struct drm_device *dev = crtc->base.dev; + struct drm_i915_private *dev_priv = to_i915(dev); + unsigned long enabled_transcoders; + u32 tmp; + + enabled_transcoders = hsw_enabled_transcoders(crtc); + if (!enabled_transcoders) + return false; + + assert_enabled_transcoders(dev_priv, enabled_transcoders); + + /* + * With the exception of DSI we should only ever have + * a single enabled transcoder. With DSI let's just + * pick the first one. + */ + pipe_config->cpu_transcoder = ffs(enabled_transcoders) - 1; + + if (!intel_display_power_get_in_set_if_enabled(dev_priv, power_domain_set, + POWER_DOMAIN_TRANSCODER(pipe_config->cpu_transcoder))) + return false; + + if (hsw_panel_transcoders(dev_priv) & BIT(pipe_config->cpu_transcoder)) { + tmp = intel_de_read(dev_priv, TRANS_DDI_FUNC_CTL(pipe_config->cpu_transcoder)); + + if ((tmp & TRANS_DDI_EDP_INPUT_MASK) == TRANS_DDI_EDP_INPUT_A_ONOFF) + pipe_config->pch_pfit.force_thru = true; + } + + tmp = intel_de_read(dev_priv, TRANSCONF(pipe_config->cpu_transcoder)); + + return tmp & TRANSCONF_ENABLE; +} + +static bool bxt_get_dsi_transcoder_state(struct intel_crtc *crtc, + struct intel_crtc_state *pipe_config, + struct intel_display_power_domain_set *power_domain_set) +{ + struct drm_device *dev = crtc->base.dev; + struct drm_i915_private *dev_priv = to_i915(dev); + enum transcoder cpu_transcoder; + enum port port; + u32 tmp; + + for_each_port_masked(port, BIT(PORT_A) | BIT(PORT_C)) { + if (port == PORT_A) + cpu_transcoder = TRANSCODER_DSI_A; + else + cpu_transcoder = TRANSCODER_DSI_C; + + if (!intel_display_power_get_in_set_if_enabled(dev_priv, power_domain_set, + POWER_DOMAIN_TRANSCODER(cpu_transcoder))) + continue; + + /* + * The PLL needs to be enabled with a valid divider + * configuration, otherwise accessing DSI registers will hang + * the machine. See BSpec North Display Engine + * registers/MIPI[BXT]. We can break out here early, since we + * need the same DSI PLL to be enabled for both DSI ports. + */ + if (!bxt_dsi_pll_is_enabled(dev_priv)) + break; + + /* XXX: this works for video mode only */ + tmp = intel_de_read(dev_priv, BXT_MIPI_PORT_CTRL(port)); + if (!(tmp & DPI_ENABLE)) + continue; + + tmp = intel_de_read(dev_priv, MIPI_CTRL(port)); + if ((tmp & BXT_PIPE_SELECT_MASK) != BXT_PIPE_SELECT(crtc->pipe)) + continue; + + pipe_config->cpu_transcoder = cpu_transcoder; + break; + } + + return transcoder_is_dsi(pipe_config->cpu_transcoder); +} + +static void intel_bigjoiner_get_config(struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct drm_i915_private *i915 = to_i915(crtc->base.dev); + u8 master_pipes, slave_pipes; + enum pipe pipe = crtc->pipe; + + enabled_bigjoiner_pipes(i915, &master_pipes, &slave_pipes); + + if (((master_pipes | slave_pipes) & BIT(pipe)) == 0) + return; + + crtc_state->bigjoiner_pipes = + BIT(get_bigjoiner_master_pipe(pipe, master_pipes, slave_pipes)) | + get_bigjoiner_slave_pipes(pipe, master_pipes, slave_pipes); +} + +static bool hsw_get_pipe_config(struct intel_crtc *crtc, + struct intel_crtc_state *pipe_config) +{ + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + bool active; + u32 tmp; + + if (!intel_display_power_get_in_set_if_enabled(dev_priv, &crtc->hw_readout_power_domains, + POWER_DOMAIN_PIPE(crtc->pipe))) + return false; + + pipe_config->shared_dpll = NULL; + + active = hsw_get_transcoder_state(crtc, pipe_config, &crtc->hw_readout_power_domains); + + if ((IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv)) && + bxt_get_dsi_transcoder_state(crtc, pipe_config, &crtc->hw_readout_power_domains)) { + drm_WARN_ON(&dev_priv->drm, active); + active = true; + } + + if (!active) + goto out; + + intel_dsc_get_config(pipe_config); + intel_bigjoiner_get_config(pipe_config); + + if (!transcoder_is_dsi(pipe_config->cpu_transcoder) || + DISPLAY_VER(dev_priv) >= 11) + intel_get_transcoder_timings(crtc, pipe_config); + + if (HAS_VRR(dev_priv) && !transcoder_is_dsi(pipe_config->cpu_transcoder)) + intel_vrr_get_config(pipe_config); + + intel_get_pipe_src_size(crtc, pipe_config); + + if (IS_HASWELL(dev_priv)) { + u32 tmp = intel_de_read(dev_priv, + TRANSCONF(pipe_config->cpu_transcoder)); + + if (tmp & TRANSCONF_OUTPUT_COLORSPACE_YUV_HSW) + pipe_config->output_format = INTEL_OUTPUT_FORMAT_YCBCR444; + else + pipe_config->output_format = INTEL_OUTPUT_FORMAT_RGB; + } else { + pipe_config->output_format = + bdw_get_pipe_misc_output_format(crtc); + } + + pipe_config->sink_format = pipe_config->output_format; + + pipe_config->gamma_mode = intel_de_read(dev_priv, + GAMMA_MODE(crtc->pipe)); + + pipe_config->csc_mode = intel_de_read(dev_priv, + PIPE_CSC_MODE(crtc->pipe)); + + if (DISPLAY_VER(dev_priv) >= 9) { + tmp = intel_de_read(dev_priv, SKL_BOTTOM_COLOR(crtc->pipe)); + + if (tmp & SKL_BOTTOM_COLOR_GAMMA_ENABLE) + pipe_config->gamma_enable = true; + + if (tmp & SKL_BOTTOM_COLOR_CSC_ENABLE) + pipe_config->csc_enable = true; + } else { + i9xx_get_pipe_color_config(pipe_config); + } + + intel_color_get_config(pipe_config); + + tmp = intel_de_read(dev_priv, WM_LINETIME(crtc->pipe)); + pipe_config->linetime = REG_FIELD_GET(HSW_LINETIME_MASK, tmp); + if (IS_BROADWELL(dev_priv) || IS_HASWELL(dev_priv)) + pipe_config->ips_linetime = + REG_FIELD_GET(HSW_IPS_LINETIME_MASK, tmp); + + if (intel_display_power_get_in_set_if_enabled(dev_priv, &crtc->hw_readout_power_domains, + POWER_DOMAIN_PIPE_PANEL_FITTER(crtc->pipe))) { + if (DISPLAY_VER(dev_priv) >= 9) + skl_scaler_get_config(pipe_config); + else + ilk_get_pfit_config(pipe_config); + } + + hsw_ips_get_config(pipe_config); + + if (pipe_config->cpu_transcoder != TRANSCODER_EDP && + !transcoder_is_dsi(pipe_config->cpu_transcoder)) { + pipe_config->pixel_multiplier = + intel_de_read(dev_priv, + TRANS_MULT(pipe_config->cpu_transcoder)) + 1; + } else { + pipe_config->pixel_multiplier = 1; + } + + if (!transcoder_is_dsi(pipe_config->cpu_transcoder)) { + tmp = intel_de_read(dev_priv, DISPLAY_VER(dev_priv) >= 14 ? + MTL_CHICKEN_TRANS(pipe_config->cpu_transcoder) : + CHICKEN_TRANS(pipe_config->cpu_transcoder)); + + pipe_config->framestart_delay = REG_FIELD_GET(HSW_FRAME_START_DELAY_MASK, tmp) + 1; + } else { + /* no idea if this is correct */ + pipe_config->framestart_delay = 1; + } + +out: + intel_display_power_put_all_in_set(dev_priv, &crtc->hw_readout_power_domains); + + return active; +} + +bool intel_crtc_get_pipe_config(struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct drm_i915_private *i915 = to_i915(crtc->base.dev); + + if (!i915->display.funcs.display->get_pipe_config(crtc, crtc_state)) + return false; + + crtc_state->hw.active = true; + + intel_crtc_readout_derived_state(crtc_state); + + return true; +} + +static int i9xx_pll_refclk(struct drm_device *dev, + const struct intel_crtc_state *pipe_config) +{ + struct drm_i915_private *dev_priv = to_i915(dev); + u32 dpll = pipe_config->dpll_hw_state.dpll; + + if ((dpll & PLL_REF_INPUT_MASK) == PLLB_REF_INPUT_SPREADSPECTRUMIN) + return dev_priv->display.vbt.lvds_ssc_freq; + else if (HAS_PCH_SPLIT(dev_priv)) + return 120000; + else if (DISPLAY_VER(dev_priv) != 2) + return 96000; + else + return 48000; +} + +/* Returns the clock of the currently programmed mode of the given pipe. */ +void i9xx_crtc_clock_get(struct intel_crtc *crtc, + struct intel_crtc_state *pipe_config) +{ + struct drm_device *dev = crtc->base.dev; + struct drm_i915_private *dev_priv = to_i915(dev); + u32 dpll = pipe_config->dpll_hw_state.dpll; + u32 fp; + struct dpll clock; + int port_clock; + int refclk = i9xx_pll_refclk(dev, pipe_config); + + if ((dpll & DISPLAY_RATE_SELECT_FPA1) == 0) + fp = pipe_config->dpll_hw_state.fp0; + else + fp = pipe_config->dpll_hw_state.fp1; + + clock.m1 = (fp & FP_M1_DIV_MASK) >> FP_M1_DIV_SHIFT; + if (IS_PINEVIEW(dev_priv)) { + clock.n = ffs((fp & FP_N_PINEVIEW_DIV_MASK) >> FP_N_DIV_SHIFT) - 1; + clock.m2 = (fp & FP_M2_PINEVIEW_DIV_MASK) >> FP_M2_DIV_SHIFT; + } else { + clock.n = (fp & FP_N_DIV_MASK) >> FP_N_DIV_SHIFT; + clock.m2 = (fp & FP_M2_DIV_MASK) >> FP_M2_DIV_SHIFT; + } + + if (DISPLAY_VER(dev_priv) != 2) { + if (IS_PINEVIEW(dev_priv)) + clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_PINEVIEW) >> + DPLL_FPA01_P1_POST_DIV_SHIFT_PINEVIEW); + else + clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK) >> + DPLL_FPA01_P1_POST_DIV_SHIFT); + + switch (dpll & DPLL_MODE_MASK) { + case DPLLB_MODE_DAC_SERIAL: + clock.p2 = dpll & DPLL_DAC_SERIAL_P2_CLOCK_DIV_5 ? + 5 : 10; + break; + case DPLLB_MODE_LVDS: + clock.p2 = dpll & DPLLB_LVDS_P2_CLOCK_DIV_7 ? + 7 : 14; + break; + default: + drm_dbg_kms(&dev_priv->drm, + "Unknown DPLL mode %08x in programmed " + "mode\n", (int)(dpll & DPLL_MODE_MASK)); + return; + } + + if (IS_PINEVIEW(dev_priv)) + port_clock = pnv_calc_dpll_params(refclk, &clock); + else + port_clock = i9xx_calc_dpll_params(refclk, &clock); + } else { + enum pipe lvds_pipe; + + if (IS_I85X(dev_priv) && + intel_lvds_port_enabled(dev_priv, LVDS, &lvds_pipe) && + lvds_pipe == crtc->pipe) { + u32 lvds = intel_de_read(dev_priv, LVDS); + + clock.p1 = ffs((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830_LVDS) >> + DPLL_FPA01_P1_POST_DIV_SHIFT); + + if (lvds & LVDS_CLKB_POWER_UP) + clock.p2 = 7; + else + clock.p2 = 14; + } else { + if (dpll & PLL_P1_DIVIDE_BY_TWO) + clock.p1 = 2; + else { + clock.p1 = ((dpll & DPLL_FPA01_P1_POST_DIV_MASK_I830) >> + DPLL_FPA01_P1_POST_DIV_SHIFT) + 2; + } + if (dpll & PLL_P2_DIVIDE_BY_4) + clock.p2 = 4; + else + clock.p2 = 2; + } + + port_clock = i9xx_calc_dpll_params(refclk, &clock); + } + + /* + * This value includes pixel_multiplier. We will use + * port_clock to compute adjusted_mode.crtc_clock in the + * encoder's get_config() function. + */ + pipe_config->port_clock = port_clock; +} + +int intel_dotclock_calculate(int link_freq, + const struct intel_link_m_n *m_n) +{ + /* + * The calculation for the data clock is: + * pixel_clock = ((m/n)*(link_clock * nr_lanes))/bpp + * But we want to avoid losing precison if possible, so: + * pixel_clock = ((m * link_clock * nr_lanes)/(n*bpp)) + * + * and the link clock is simpler: + * link_clock = (m * link_clock) / n + */ + + if (!m_n->link_n) + return 0; + + return DIV_ROUND_UP_ULL(mul_u32_u32(m_n->link_m, link_freq), + m_n->link_n); +} + +int intel_crtc_dotclock(const struct intel_crtc_state *pipe_config) +{ + int dotclock; + + if (intel_crtc_has_dp_encoder(pipe_config)) + dotclock = intel_dotclock_calculate(pipe_config->port_clock, + &pipe_config->dp_m_n); + else if (pipe_config->has_hdmi_sink && pipe_config->pipe_bpp > 24) + dotclock = DIV_ROUND_CLOSEST(pipe_config->port_clock * 24, + pipe_config->pipe_bpp); + else + dotclock = pipe_config->port_clock; + + if (pipe_config->output_format == INTEL_OUTPUT_FORMAT_YCBCR420 && + !intel_crtc_has_dp_encoder(pipe_config)) + dotclock *= 2; + + if (pipe_config->pixel_multiplier) + dotclock /= pipe_config->pixel_multiplier; + + return dotclock; +} + +/* Returns the currently programmed mode of the given encoder. */ +struct drm_display_mode * +intel_encoder_current_mode(struct intel_encoder *encoder) +{ + struct drm_i915_private *dev_priv = to_i915(encoder->base.dev); + struct intel_crtc_state *crtc_state; + struct drm_display_mode *mode; + struct intel_crtc *crtc; + enum pipe pipe; + + if (!encoder->get_hw_state(encoder, &pipe)) + return NULL; + + crtc = intel_crtc_for_pipe(dev_priv, pipe); + + mode = kzalloc(sizeof(*mode), GFP_KERNEL); + if (!mode) + return NULL; + + crtc_state = intel_crtc_state_alloc(crtc); + if (!crtc_state) { + kfree(mode); + return NULL; + } + + if (!intel_crtc_get_pipe_config(crtc_state)) { + kfree(crtc_state); + kfree(mode); + return NULL; + } + + intel_encoder_get_config(encoder, crtc_state); + + intel_mode_from_crtc_timings(mode, &crtc_state->hw.adjusted_mode); + + kfree(crtc_state); + + return mode; +} + +static bool encoders_cloneable(const struct intel_encoder *a, + const struct intel_encoder *b) +{ + /* masks could be asymmetric, so check both ways */ + return a == b || (a->cloneable & BIT(b->type) && + b->cloneable & BIT(a->type)); +} + +static bool check_single_encoder_cloning(struct intel_atomic_state *state, + struct intel_crtc *crtc, + struct intel_encoder *encoder) +{ + struct intel_encoder *source_encoder; + struct drm_connector *connector; + struct drm_connector_state *connector_state; + int i; + + for_each_new_connector_in_state(&state->base, connector, connector_state, i) { + if (connector_state->crtc != &crtc->base) + continue; + + source_encoder = + to_intel_encoder(connector_state->best_encoder); + if (!encoders_cloneable(encoder, source_encoder)) + return false; + } + + return true; +} + +static int icl_add_linked_planes(struct intel_atomic_state *state) +{ + struct intel_plane *plane, *linked; + struct intel_plane_state *plane_state, *linked_plane_state; + int i; + + for_each_new_intel_plane_in_state(state, plane, plane_state, i) { + linked = plane_state->planar_linked_plane; + + if (!linked) + continue; + + linked_plane_state = intel_atomic_get_plane_state(state, linked); + if (IS_ERR(linked_plane_state)) + return PTR_ERR(linked_plane_state); + + drm_WARN_ON(state->base.dev, + linked_plane_state->planar_linked_plane != plane); + drm_WARN_ON(state->base.dev, + linked_plane_state->planar_slave == plane_state->planar_slave); + } + + return 0; +} + +static int icl_check_nv12_planes(struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + struct intel_atomic_state *state = to_intel_atomic_state(crtc_state->uapi.state); + struct intel_plane *plane, *linked; + struct intel_plane_state *plane_state; + int i; + + if (DISPLAY_VER(dev_priv) < 11) + return 0; + + /* + * Destroy all old plane links and make the slave plane invisible + * in the crtc_state->active_planes mask. + */ + for_each_new_intel_plane_in_state(state, plane, plane_state, i) { + if (plane->pipe != crtc->pipe || !plane_state->planar_linked_plane) + continue; + + plane_state->planar_linked_plane = NULL; + if (plane_state->planar_slave && !plane_state->uapi.visible) { + crtc_state->enabled_planes &= ~BIT(plane->id); + crtc_state->active_planes &= ~BIT(plane->id); + crtc_state->update_planes |= BIT(plane->id); + crtc_state->data_rate[plane->id] = 0; + crtc_state->rel_data_rate[plane->id] = 0; + } + + plane_state->planar_slave = false; + } + + if (!crtc_state->nv12_planes) + return 0; + + for_each_new_intel_plane_in_state(state, plane, plane_state, i) { + struct intel_plane_state *linked_state = NULL; + + if (plane->pipe != crtc->pipe || + !(crtc_state->nv12_planes & BIT(plane->id))) + continue; + + for_each_intel_plane_on_crtc(&dev_priv->drm, crtc, linked) { + if (!icl_is_nv12_y_plane(dev_priv, linked->id)) + continue; + + if (crtc_state->active_planes & BIT(linked->id)) + continue; + + linked_state = intel_atomic_get_plane_state(state, linked); + if (IS_ERR(linked_state)) + return PTR_ERR(linked_state); + + break; + } + + if (!linked_state) { + drm_dbg_kms(&dev_priv->drm, + "Need %d free Y planes for planar YUV\n", + hweight8(crtc_state->nv12_planes)); + + return -EINVAL; + } + + plane_state->planar_linked_plane = linked; + + linked_state->planar_slave = true; + linked_state->planar_linked_plane = plane; + crtc_state->enabled_planes |= BIT(linked->id); + crtc_state->active_planes |= BIT(linked->id); + crtc_state->update_planes |= BIT(linked->id); + crtc_state->data_rate[linked->id] = + crtc_state->data_rate_y[plane->id]; + crtc_state->rel_data_rate[linked->id] = + crtc_state->rel_data_rate_y[plane->id]; + drm_dbg_kms(&dev_priv->drm, "Using %s as Y plane for %s\n", + linked->base.name, plane->base.name); + + /* Copy parameters to slave plane */ + linked_state->ctl = plane_state->ctl | PLANE_CTL_YUV420_Y_PLANE; + linked_state->color_ctl = plane_state->color_ctl; + linked_state->view = plane_state->view; + linked_state->decrypt = plane_state->decrypt; + + intel_plane_copy_hw_state(linked_state, plane_state); + linked_state->uapi.src = plane_state->uapi.src; + linked_state->uapi.dst = plane_state->uapi.dst; + + if (icl_is_hdr_plane(dev_priv, plane->id)) { + if (linked->id == PLANE_SPRITE5) + plane_state->cus_ctl |= PLANE_CUS_Y_PLANE_7_ICL; + else if (linked->id == PLANE_SPRITE4) + plane_state->cus_ctl |= PLANE_CUS_Y_PLANE_6_ICL; + else if (linked->id == PLANE_SPRITE3) + plane_state->cus_ctl |= PLANE_CUS_Y_PLANE_5_RKL; + else if (linked->id == PLANE_SPRITE2) + plane_state->cus_ctl |= PLANE_CUS_Y_PLANE_4_RKL; + else + MISSING_CASE(linked->id); + } + } + + return 0; +} + +static bool c8_planes_changed(const struct intel_crtc_state *new_crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(new_crtc_state->uapi.crtc); + struct intel_atomic_state *state = + to_intel_atomic_state(new_crtc_state->uapi.state); + const struct intel_crtc_state *old_crtc_state = + intel_atomic_get_old_crtc_state(state, crtc); + + return !old_crtc_state->c8_planes != !new_crtc_state->c8_planes; +} + +static u16 hsw_linetime_wm(const struct intel_crtc_state *crtc_state) +{ + const struct drm_display_mode *pipe_mode = + &crtc_state->hw.pipe_mode; + int linetime_wm; + + if (!crtc_state->hw.enable) + return 0; + + linetime_wm = DIV_ROUND_CLOSEST(pipe_mode->crtc_htotal * 1000 * 8, + pipe_mode->crtc_clock); + + return min(linetime_wm, 0x1ff); +} + +static u16 hsw_ips_linetime_wm(const struct intel_crtc_state *crtc_state, + const struct intel_cdclk_state *cdclk_state) +{ + const struct drm_display_mode *pipe_mode = + &crtc_state->hw.pipe_mode; + int linetime_wm; + + if (!crtc_state->hw.enable) + return 0; + + linetime_wm = DIV_ROUND_CLOSEST(pipe_mode->crtc_htotal * 1000 * 8, + cdclk_state->logical.cdclk); + + return min(linetime_wm, 0x1ff); +} + +static u16 skl_linetime_wm(const struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + const struct drm_display_mode *pipe_mode = + &crtc_state->hw.pipe_mode; + int linetime_wm; + + if (!crtc_state->hw.enable) + return 0; + + linetime_wm = DIV_ROUND_UP(pipe_mode->crtc_htotal * 1000 * 8, + crtc_state->pixel_rate); + + /* Display WA #1135: BXT:ALL GLK:ALL */ + if ((IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv)) && + skl_watermark_ipc_enabled(dev_priv)) + linetime_wm /= 2; + + return min(linetime_wm, 0x1ff); +} + +static int hsw_compute_linetime_wm(struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + struct intel_crtc_state *crtc_state = + intel_atomic_get_new_crtc_state(state, crtc); + const struct intel_cdclk_state *cdclk_state; + + if (DISPLAY_VER(dev_priv) >= 9) + crtc_state->linetime = skl_linetime_wm(crtc_state); + else + crtc_state->linetime = hsw_linetime_wm(crtc_state); + + if (!hsw_crtc_supports_ips(crtc)) + return 0; + + cdclk_state = intel_atomic_get_cdclk_state(state); + if (IS_ERR(cdclk_state)) + return PTR_ERR(cdclk_state); + + crtc_state->ips_linetime = hsw_ips_linetime_wm(crtc_state, + cdclk_state); + + return 0; +} + +static int intel_crtc_atomic_check(struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + struct intel_crtc_state *crtc_state = + intel_atomic_get_new_crtc_state(state, crtc); + int ret; + + if (DISPLAY_VER(dev_priv) < 5 && !IS_G4X(dev_priv) && + intel_crtc_needs_modeset(crtc_state) && + !crtc_state->hw.active) + crtc_state->update_wm_post = true; + + if (intel_crtc_needs_modeset(crtc_state)) { + ret = intel_dpll_crtc_get_shared_dpll(state, crtc); + if (ret) + return ret; + } + + /* + * May need to update pipe gamma enable bits + * when C8 planes are getting enabled/disabled. + */ + if (c8_planes_changed(crtc_state)) + crtc_state->uapi.color_mgmt_changed = true; + + if (intel_crtc_needs_color_update(crtc_state)) { + ret = intel_color_check(crtc_state); + if (ret) + return ret; + } + + ret = intel_compute_pipe_wm(state, crtc); + if (ret) { + drm_dbg_kms(&dev_priv->drm, + "Target pipe watermarks are invalid\n"); + return ret; + } + + /* + * Calculate 'intermediate' watermarks that satisfy both the + * old state and the new state. We can program these + * immediately. + */ + ret = intel_compute_intermediate_wm(state, crtc); + if (ret) { + drm_dbg_kms(&dev_priv->drm, + "No valid intermediate pipe watermarks are possible\n"); + return ret; + } + + if (DISPLAY_VER(dev_priv) >= 9) { + if (intel_crtc_needs_modeset(crtc_state) || + intel_crtc_needs_fastset(crtc_state)) { + ret = skl_update_scaler_crtc(crtc_state); + if (ret) + return ret; + } + + ret = intel_atomic_setup_scalers(dev_priv, crtc, crtc_state); + if (ret) + return ret; + } + + if (HAS_IPS(dev_priv)) { + ret = hsw_ips_compute_config(state, crtc); + if (ret) + return ret; + } + + if (DISPLAY_VER(dev_priv) >= 9 || + IS_BROADWELL(dev_priv) || IS_HASWELL(dev_priv)) { + ret = hsw_compute_linetime_wm(state, crtc); + if (ret) + return ret; + + } + + ret = intel_psr2_sel_fetch_update(state, crtc); + if (ret) + return ret; + + return 0; +} + +static int +compute_sink_pipe_bpp(const struct drm_connector_state *conn_state, + struct intel_crtc_state *crtc_state) +{ + struct drm_connector *connector = conn_state->connector; + struct drm_i915_private *i915 = to_i915(crtc_state->uapi.crtc->dev); + const struct drm_display_info *info = &connector->display_info; + int bpp; + + switch (conn_state->max_bpc) { + case 6 ... 7: + bpp = 6 * 3; + break; + case 8 ... 9: + bpp = 8 * 3; + break; + case 10 ... 11: + bpp = 10 * 3; + break; + case 12 ... 16: + bpp = 12 * 3; + break; + default: + MISSING_CASE(conn_state->max_bpc); + return -EINVAL; + } + + if (bpp < crtc_state->pipe_bpp) { + drm_dbg_kms(&i915->drm, + "[CONNECTOR:%d:%s] Limiting display bpp to %d " + "(EDID bpp %d, max requested bpp %d, max platform bpp %d)\n", + connector->base.id, connector->name, + bpp, 3 * info->bpc, + 3 * conn_state->max_requested_bpc, + crtc_state->pipe_bpp); + + crtc_state->pipe_bpp = bpp; + } + + return 0; +} + +static int +compute_baseline_pipe_bpp(struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + struct intel_crtc_state *crtc_state = + intel_atomic_get_new_crtc_state(state, crtc); + struct drm_connector *connector; + struct drm_connector_state *connector_state; + int bpp, i; + + if ((IS_G4X(dev_priv) || IS_VALLEYVIEW(dev_priv) || + IS_CHERRYVIEW(dev_priv))) + bpp = 10*3; + else if (DISPLAY_VER(dev_priv) >= 5) + bpp = 12*3; + else + bpp = 8*3; + + crtc_state->pipe_bpp = bpp; + + /* Clamp display bpp to connector max bpp */ + for_each_new_connector_in_state(&state->base, connector, connector_state, i) { + int ret; + + if (connector_state->crtc != &crtc->base) + continue; + + ret = compute_sink_pipe_bpp(connector_state, crtc_state); + if (ret) + return ret; + } + + return 0; +} + +static bool check_digital_port_conflicts(struct intel_atomic_state *state) +{ + struct drm_device *dev = state->base.dev; + struct drm_connector *connector; + struct drm_connector_list_iter conn_iter; + unsigned int used_ports = 0; + unsigned int used_mst_ports = 0; + bool ret = true; + + /* + * We're going to peek into connector->state, + * hence connection_mutex must be held. + */ + drm_modeset_lock_assert_held(&dev->mode_config.connection_mutex); + + /* + * Walk the connector list instead of the encoder + * list to detect the problem on ddi platforms + * where there's just one encoder per digital port. + */ + drm_connector_list_iter_begin(dev, &conn_iter); + drm_for_each_connector_iter(connector, &conn_iter) { + struct drm_connector_state *connector_state; + struct intel_encoder *encoder; + + connector_state = + drm_atomic_get_new_connector_state(&state->base, + connector); + if (!connector_state) + connector_state = connector->state; + + if (!connector_state->best_encoder) + continue; + + encoder = to_intel_encoder(connector_state->best_encoder); + + drm_WARN_ON(dev, !connector_state->crtc); + + switch (encoder->type) { + case INTEL_OUTPUT_DDI: + if (drm_WARN_ON(dev, !HAS_DDI(to_i915(dev)))) + break; + fallthrough; + case INTEL_OUTPUT_DP: + case INTEL_OUTPUT_HDMI: + case INTEL_OUTPUT_EDP: + /* the same port mustn't appear more than once */ + if (used_ports & BIT(encoder->port)) + ret = false; + + used_ports |= BIT(encoder->port); + break; + case INTEL_OUTPUT_DP_MST: + used_mst_ports |= + 1 << encoder->port; + break; + default: + break; + } + } + drm_connector_list_iter_end(&conn_iter); + + /* can't mix MST and SST/HDMI on the same port */ + if (used_ports & used_mst_ports) + return false; + + return ret; +} + +static void +intel_crtc_copy_uapi_to_hw_state_nomodeset(struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + struct intel_crtc_state *crtc_state = + intel_atomic_get_new_crtc_state(state, crtc); + + WARN_ON(intel_crtc_is_bigjoiner_slave(crtc_state)); + + drm_property_replace_blob(&crtc_state->hw.degamma_lut, + crtc_state->uapi.degamma_lut); + drm_property_replace_blob(&crtc_state->hw.gamma_lut, + crtc_state->uapi.gamma_lut); + drm_property_replace_blob(&crtc_state->hw.ctm, + crtc_state->uapi.ctm); +} + +static void +intel_crtc_copy_uapi_to_hw_state_modeset(struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + struct intel_crtc_state *crtc_state = + intel_atomic_get_new_crtc_state(state, crtc); + + WARN_ON(intel_crtc_is_bigjoiner_slave(crtc_state)); + + crtc_state->hw.enable = crtc_state->uapi.enable; + crtc_state->hw.active = crtc_state->uapi.active; + drm_mode_copy(&crtc_state->hw.mode, + &crtc_state->uapi.mode); + drm_mode_copy(&crtc_state->hw.adjusted_mode, + &crtc_state->uapi.adjusted_mode); + crtc_state->hw.scaling_filter = crtc_state->uapi.scaling_filter; + + intel_crtc_copy_uapi_to_hw_state_nomodeset(state, crtc); +} + +static void +copy_bigjoiner_crtc_state_nomodeset(struct intel_atomic_state *state, + struct intel_crtc *slave_crtc) +{ + struct intel_crtc_state *slave_crtc_state = + intel_atomic_get_new_crtc_state(state, slave_crtc); + struct intel_crtc *master_crtc = intel_master_crtc(slave_crtc_state); + const struct intel_crtc_state *master_crtc_state = + intel_atomic_get_new_crtc_state(state, master_crtc); + + drm_property_replace_blob(&slave_crtc_state->hw.degamma_lut, + master_crtc_state->hw.degamma_lut); + drm_property_replace_blob(&slave_crtc_state->hw.gamma_lut, + master_crtc_state->hw.gamma_lut); + drm_property_replace_blob(&slave_crtc_state->hw.ctm, + master_crtc_state->hw.ctm); + + slave_crtc_state->uapi.color_mgmt_changed = master_crtc_state->uapi.color_mgmt_changed; +} + +static int +copy_bigjoiner_crtc_state_modeset(struct intel_atomic_state *state, + struct intel_crtc *slave_crtc) +{ + struct intel_crtc_state *slave_crtc_state = + intel_atomic_get_new_crtc_state(state, slave_crtc); + struct intel_crtc *master_crtc = intel_master_crtc(slave_crtc_state); + const struct intel_crtc_state *master_crtc_state = + intel_atomic_get_new_crtc_state(state, master_crtc); + struct intel_crtc_state *saved_state; + + WARN_ON(master_crtc_state->bigjoiner_pipes != + slave_crtc_state->bigjoiner_pipes); + + saved_state = kmemdup(master_crtc_state, sizeof(*saved_state), GFP_KERNEL); + if (!saved_state) + return -ENOMEM; + + /* preserve some things from the slave's original crtc state */ + saved_state->uapi = slave_crtc_state->uapi; + saved_state->scaler_state = slave_crtc_state->scaler_state; + saved_state->shared_dpll = slave_crtc_state->shared_dpll; + saved_state->crc_enabled = slave_crtc_state->crc_enabled; + + intel_crtc_free_hw_state(slave_crtc_state); + memcpy(slave_crtc_state, saved_state, sizeof(*slave_crtc_state)); + kfree(saved_state); + + /* Re-init hw state */ + memset(&slave_crtc_state->hw, 0, sizeof(slave_crtc_state->hw)); + slave_crtc_state->hw.enable = master_crtc_state->hw.enable; + slave_crtc_state->hw.active = master_crtc_state->hw.active; + drm_mode_copy(&slave_crtc_state->hw.mode, + &master_crtc_state->hw.mode); + drm_mode_copy(&slave_crtc_state->hw.pipe_mode, + &master_crtc_state->hw.pipe_mode); + drm_mode_copy(&slave_crtc_state->hw.adjusted_mode, + &master_crtc_state->hw.adjusted_mode); + slave_crtc_state->hw.scaling_filter = master_crtc_state->hw.scaling_filter; + + copy_bigjoiner_crtc_state_nomodeset(state, slave_crtc); + + slave_crtc_state->uapi.mode_changed = master_crtc_state->uapi.mode_changed; + slave_crtc_state->uapi.connectors_changed = master_crtc_state->uapi.connectors_changed; + slave_crtc_state->uapi.active_changed = master_crtc_state->uapi.active_changed; + + WARN_ON(master_crtc_state->bigjoiner_pipes != + slave_crtc_state->bigjoiner_pipes); + + return 0; +} + +static int +intel_crtc_prepare_cleared_state(struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + struct intel_crtc_state *crtc_state = + intel_atomic_get_new_crtc_state(state, crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + struct intel_crtc_state *saved_state; + + saved_state = intel_crtc_state_alloc(crtc); + if (!saved_state) + return -ENOMEM; + + /* free the old crtc_state->hw members */ + intel_crtc_free_hw_state(crtc_state); + + /* FIXME: before the switch to atomic started, a new pipe_config was + * kzalloc'd. Code that depends on any field being zero should be + * fixed, so that the crtc_state can be safely duplicated. For now, + * only fields that are know to not cause problems are preserved. */ + + saved_state->uapi = crtc_state->uapi; + saved_state->inherited = crtc_state->inherited; + saved_state->scaler_state = crtc_state->scaler_state; + saved_state->shared_dpll = crtc_state->shared_dpll; + saved_state->dpll_hw_state = crtc_state->dpll_hw_state; + memcpy(saved_state->icl_port_dplls, crtc_state->icl_port_dplls, + sizeof(saved_state->icl_port_dplls)); + saved_state->crc_enabled = crtc_state->crc_enabled; + if (IS_G4X(dev_priv) || + IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) + saved_state->wm = crtc_state->wm; + + memcpy(crtc_state, saved_state, sizeof(*crtc_state)); + kfree(saved_state); + + intel_crtc_copy_uapi_to_hw_state_modeset(state, crtc); + + return 0; +} + +static int +intel_modeset_pipe_config(struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + struct drm_i915_private *i915 = to_i915(crtc->base.dev); + struct intel_crtc_state *crtc_state = + intel_atomic_get_new_crtc_state(state, crtc); + struct drm_connector *connector; + struct drm_connector_state *connector_state; + int pipe_src_w, pipe_src_h; + int base_bpp, ret, i; + bool retry = true; + + crtc_state->cpu_transcoder = (enum transcoder) crtc->pipe; + + crtc_state->framestart_delay = 1; + + /* + * Sanitize sync polarity flags based on requested ones. If neither + * positive or negative polarity is requested, treat this as meaning + * negative polarity. + */ + if (!(crtc_state->hw.adjusted_mode.flags & + (DRM_MODE_FLAG_PHSYNC | DRM_MODE_FLAG_NHSYNC))) + crtc_state->hw.adjusted_mode.flags |= DRM_MODE_FLAG_NHSYNC; + + if (!(crtc_state->hw.adjusted_mode.flags & + (DRM_MODE_FLAG_PVSYNC | DRM_MODE_FLAG_NVSYNC))) + crtc_state->hw.adjusted_mode.flags |= DRM_MODE_FLAG_NVSYNC; + + ret = compute_baseline_pipe_bpp(state, crtc); + if (ret) + return ret; + + base_bpp = crtc_state->pipe_bpp; + + /* + * Determine the real pipe dimensions. Note that stereo modes can + * increase the actual pipe size due to the frame doubling and + * insertion of additional space for blanks between the frame. This + * is stored in the crtc timings. We use the requested mode to do this + * computation to clearly distinguish it from the adjusted mode, which + * can be changed by the connectors in the below retry loop. + */ + drm_mode_get_hv_timing(&crtc_state->hw.mode, + &pipe_src_w, &pipe_src_h); + drm_rect_init(&crtc_state->pipe_src, 0, 0, + pipe_src_w, pipe_src_h); + + for_each_new_connector_in_state(&state->base, connector, connector_state, i) { + struct intel_encoder *encoder = + to_intel_encoder(connector_state->best_encoder); + + if (connector_state->crtc != &crtc->base) + continue; + + if (!check_single_encoder_cloning(state, crtc, encoder)) { + drm_dbg_kms(&i915->drm, + "[ENCODER:%d:%s] rejecting invalid cloning configuration\n", + encoder->base.base.id, encoder->base.name); + return -EINVAL; + } + + /* + * Determine output_types before calling the .compute_config() + * hooks so that the hooks can use this information safely. + */ + if (encoder->compute_output_type) + crtc_state->output_types |= + BIT(encoder->compute_output_type(encoder, crtc_state, + connector_state)); + else + crtc_state->output_types |= BIT(encoder->type); + } + +encoder_retry: + /* Ensure the port clock defaults are reset when retrying. */ + crtc_state->port_clock = 0; + crtc_state->pixel_multiplier = 1; + + /* Fill in default crtc timings, allow encoders to overwrite them. */ + drm_mode_set_crtcinfo(&crtc_state->hw.adjusted_mode, + CRTC_STEREO_DOUBLE); + + /* Pass our mode to the connectors and the CRTC to give them a chance to + * adjust it according to limitations or connector properties, and also + * a chance to reject the mode entirely. + */ + for_each_new_connector_in_state(&state->base, connector, connector_state, i) { + struct intel_encoder *encoder = + to_intel_encoder(connector_state->best_encoder); + + if (connector_state->crtc != &crtc->base) + continue; + + ret = encoder->compute_config(encoder, crtc_state, + connector_state); + if (ret == -EDEADLK) + return ret; + if (ret < 0) { + drm_dbg_kms(&i915->drm, "[ENCODER:%d:%s] config failure: %d\n", + encoder->base.base.id, encoder->base.name, ret); + return ret; + } + } + + /* Set default port clock if not overwritten by the encoder. Needs to be + * done afterwards in case the encoder adjusts the mode. */ + if (!crtc_state->port_clock) + crtc_state->port_clock = crtc_state->hw.adjusted_mode.crtc_clock + * crtc_state->pixel_multiplier; + + ret = intel_crtc_compute_config(state, crtc); + if (ret == -EDEADLK) + return ret; + if (ret == -EAGAIN) { + if (drm_WARN(&i915->drm, !retry, + "[CRTC:%d:%s] loop in pipe configuration computation\n", + crtc->base.base.id, crtc->base.name)) + return -EINVAL; + + drm_dbg_kms(&i915->drm, "[CRTC:%d:%s] bw constrained, retrying\n", + crtc->base.base.id, crtc->base.name); + retry = false; + goto encoder_retry; + } + if (ret < 0) { + drm_dbg_kms(&i915->drm, "[CRTC:%d:%s] config failure: %d\n", + crtc->base.base.id, crtc->base.name, ret); + return ret; + } + + /* Dithering seems to not pass-through bits correctly when it should, so + * only enable it on 6bpc panels and when its not a compliance + * test requesting 6bpc video pattern. + */ + crtc_state->dither = (crtc_state->pipe_bpp == 6*3) && + !crtc_state->dither_force_disable; + drm_dbg_kms(&i915->drm, + "[CRTC:%d:%s] hw max bpp: %i, pipe bpp: %i, dithering: %i\n", + crtc->base.base.id, crtc->base.name, + base_bpp, crtc_state->pipe_bpp, crtc_state->dither); + + return 0; +} + +static int +intel_modeset_pipe_config_late(struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + struct intel_crtc_state *crtc_state = + intel_atomic_get_new_crtc_state(state, crtc); + struct drm_connector_state *conn_state; + struct drm_connector *connector; + int i; + + intel_bigjoiner_adjust_pipe_src(crtc_state); + + for_each_new_connector_in_state(&state->base, connector, + conn_state, i) { + struct intel_encoder *encoder = + to_intel_encoder(conn_state->best_encoder); + int ret; + + if (conn_state->crtc != &crtc->base || + !encoder->compute_config_late) + continue; + + ret = encoder->compute_config_late(encoder, crtc_state, + conn_state); + if (ret) + return ret; + } + + return 0; +} + +bool intel_fuzzy_clock_check(int clock1, int clock2) +{ + int diff; + + if (clock1 == clock2) + return true; + + if (!clock1 || !clock2) + return false; + + diff = abs(clock1 - clock2); + + if (((((diff + clock1 + clock2) * 100)) / (clock1 + clock2)) < 105) + return true; + + return false; +} + +static bool +intel_compare_link_m_n(const struct intel_link_m_n *m_n, + const struct intel_link_m_n *m2_n2) +{ + return m_n->tu == m2_n2->tu && + m_n->data_m == m2_n2->data_m && + m_n->data_n == m2_n2->data_n && + m_n->link_m == m2_n2->link_m && + m_n->link_n == m2_n2->link_n; +} + +static bool +intel_compare_infoframe(const union hdmi_infoframe *a, + const union hdmi_infoframe *b) +{ + return memcmp(a, b, sizeof(*a)) == 0; +} + +static bool +intel_compare_dp_vsc_sdp(const struct drm_dp_vsc_sdp *a, + const struct drm_dp_vsc_sdp *b) +{ + return memcmp(a, b, sizeof(*a)) == 0; +} + +static bool +intel_compare_buffer(const u8 *a, const u8 *b, size_t len) +{ + return memcmp(a, b, len) == 0; +} + +static void +pipe_config_infoframe_mismatch(struct drm_i915_private *dev_priv, + bool fastset, const char *name, + const union hdmi_infoframe *a, + const union hdmi_infoframe *b) +{ + if (fastset) { + if (!drm_debug_enabled(DRM_UT_KMS)) + return; + + drm_dbg_kms(&dev_priv->drm, + "fastset requirement not met in %s infoframe\n", name); + drm_dbg_kms(&dev_priv->drm, "expected:\n"); + hdmi_infoframe_log(KERN_DEBUG, dev_priv->drm.dev, a); + drm_dbg_kms(&dev_priv->drm, "found:\n"); + hdmi_infoframe_log(KERN_DEBUG, dev_priv->drm.dev, b); + } else { + drm_err(&dev_priv->drm, "mismatch in %s infoframe\n", name); + drm_err(&dev_priv->drm, "expected:\n"); + hdmi_infoframe_log(KERN_ERR, dev_priv->drm.dev, a); + drm_err(&dev_priv->drm, "found:\n"); + hdmi_infoframe_log(KERN_ERR, dev_priv->drm.dev, b); + } +} + +static void +pipe_config_dp_vsc_sdp_mismatch(struct drm_i915_private *dev_priv, + bool fastset, const char *name, + const struct drm_dp_vsc_sdp *a, + const struct drm_dp_vsc_sdp *b) +{ + if (fastset) { + if (!drm_debug_enabled(DRM_UT_KMS)) + return; + + drm_dbg_kms(&dev_priv->drm, + "fastset requirement not met in %s dp sdp\n", name); + drm_dbg_kms(&dev_priv->drm, "expected:\n"); + drm_dp_vsc_sdp_log(KERN_DEBUG, dev_priv->drm.dev, a); + drm_dbg_kms(&dev_priv->drm, "found:\n"); + drm_dp_vsc_sdp_log(KERN_DEBUG, dev_priv->drm.dev, b); + } else { + drm_err(&dev_priv->drm, "mismatch in %s dp sdp\n", name); + drm_err(&dev_priv->drm, "expected:\n"); + drm_dp_vsc_sdp_log(KERN_ERR, dev_priv->drm.dev, a); + drm_err(&dev_priv->drm, "found:\n"); + drm_dp_vsc_sdp_log(KERN_ERR, dev_priv->drm.dev, b); + } +} + +/* Returns the length up to and including the last differing byte */ +static size_t +memcmp_diff_len(const u8 *a, const u8 *b, size_t len) +{ + int i; + + for (i = len - 1; i >= 0; i--) { + if (a[i] != b[i]) + return i + 1; + } + + return 0; +} + +static void +pipe_config_buffer_mismatch(struct drm_i915_private *dev_priv, + bool fastset, const char *name, + const u8 *a, const u8 *b, size_t len) +{ + if (fastset) { + if (!drm_debug_enabled(DRM_UT_KMS)) + return; + + /* only dump up to the last difference */ + len = memcmp_diff_len(a, b, len); + + drm_dbg_kms(&dev_priv->drm, + "fastset requirement not met in %s buffer\n", name); + print_hex_dump(KERN_DEBUG, "expected: ", DUMP_PREFIX_NONE, + 16, 0, a, len, false); + print_hex_dump(KERN_DEBUG, "found: ", DUMP_PREFIX_NONE, + 16, 0, b, len, false); + } else { + /* only dump up to the last difference */ + len = memcmp_diff_len(a, b, len); + + drm_err(&dev_priv->drm, "mismatch in %s buffer\n", name); + print_hex_dump(KERN_ERR, "expected: ", DUMP_PREFIX_NONE, + 16, 0, a, len, false); + print_hex_dump(KERN_ERR, "found: ", DUMP_PREFIX_NONE, + 16, 0, b, len, false); + } +} + +static void __printf(4, 5) +pipe_config_mismatch(bool fastset, const struct intel_crtc *crtc, + const char *name, const char *format, ...) +{ + struct drm_i915_private *i915 = to_i915(crtc->base.dev); + struct va_format vaf; + va_list args; + + va_start(args, format); + vaf.fmt = format; + vaf.va = &args; + + if (fastset) + drm_dbg_kms(&i915->drm, + "[CRTC:%d:%s] fastset requirement not met in %s %pV\n", + crtc->base.base.id, crtc->base.name, name, &vaf); + else + drm_err(&i915->drm, "[CRTC:%d:%s] mismatch in %s %pV\n", + crtc->base.base.id, crtc->base.name, name, &vaf); + + va_end(args); +} + +static bool fastboot_enabled(struct drm_i915_private *dev_priv) +{ + if (dev_priv->params.fastboot != -1) + return dev_priv->params.fastboot; + + /* Enable fastboot by default on Skylake and newer */ + if (DISPLAY_VER(dev_priv) >= 9) + return true; + + /* Enable fastboot by default on VLV and CHV */ + if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) + return true; + + /* Disabled by default on all others */ + return false; +} + +bool +intel_pipe_config_compare(const struct intel_crtc_state *current_config, + const struct intel_crtc_state *pipe_config, + bool fastset) +{ + struct drm_i915_private *dev_priv = to_i915(current_config->uapi.crtc->dev); + struct intel_crtc *crtc = to_intel_crtc(pipe_config->uapi.crtc); + bool ret = true; + bool fixup_inherited = fastset && + current_config->inherited && !pipe_config->inherited; + + if (fixup_inherited && !fastboot_enabled(dev_priv)) { + drm_dbg_kms(&dev_priv->drm, + "initial modeset and fastboot not set\n"); + ret = false; + } + +#define PIPE_CONF_CHECK_X(name) do { \ + if (current_config->name != pipe_config->name) { \ + pipe_config_mismatch(fastset, crtc, __stringify(name), \ + "(expected 0x%08x, found 0x%08x)", \ + current_config->name, \ + pipe_config->name); \ + ret = false; \ + } \ +} while (0) + +#define PIPE_CONF_CHECK_X_WITH_MASK(name, mask) do { \ + if ((current_config->name & (mask)) != (pipe_config->name & (mask))) { \ + pipe_config_mismatch(fastset, crtc, __stringify(name), \ + "(expected 0x%08x, found 0x%08x)", \ + current_config->name & (mask), \ + pipe_config->name & (mask)); \ + ret = false; \ + } \ +} while (0) + +#define PIPE_CONF_CHECK_I(name) do { \ + if (current_config->name != pipe_config->name) { \ + pipe_config_mismatch(fastset, crtc, __stringify(name), \ + "(expected %i, found %i)", \ + current_config->name, \ + pipe_config->name); \ + ret = false; \ + } \ +} while (0) + +#define PIPE_CONF_CHECK_BOOL(name) do { \ + if (current_config->name != pipe_config->name) { \ + pipe_config_mismatch(fastset, crtc, __stringify(name), \ + "(expected %s, found %s)", \ + str_yes_no(current_config->name), \ + str_yes_no(pipe_config->name)); \ + ret = false; \ + } \ +} while (0) + +/* + * Checks state where we only read out the enabling, but not the entire + * state itself (like full infoframes or ELD for audio). These states + * require a full modeset on bootup to fix up. + */ +#define PIPE_CONF_CHECK_BOOL_INCOMPLETE(name) do { \ + if (!fixup_inherited || (!current_config->name && !pipe_config->name)) { \ + PIPE_CONF_CHECK_BOOL(name); \ + } else { \ + pipe_config_mismatch(fastset, crtc, __stringify(name), \ + "unable to verify whether state matches exactly, forcing modeset (expected %s, found %s)", \ + str_yes_no(current_config->name), \ + str_yes_no(pipe_config->name)); \ + ret = false; \ + } \ +} while (0) + +#define PIPE_CONF_CHECK_P(name) do { \ + if (current_config->name != pipe_config->name) { \ + pipe_config_mismatch(fastset, crtc, __stringify(name), \ + "(expected %p, found %p)", \ + current_config->name, \ + pipe_config->name); \ + ret = false; \ + } \ +} while (0) + +#define PIPE_CONF_CHECK_M_N(name) do { \ + if (!intel_compare_link_m_n(¤t_config->name, \ + &pipe_config->name)) { \ + pipe_config_mismatch(fastset, crtc, __stringify(name), \ + "(expected tu %i data %i/%i link %i/%i, " \ + "found tu %i, data %i/%i link %i/%i)", \ + current_config->name.tu, \ + current_config->name.data_m, \ + current_config->name.data_n, \ + current_config->name.link_m, \ + current_config->name.link_n, \ + pipe_config->name.tu, \ + pipe_config->name.data_m, \ + pipe_config->name.data_n, \ + pipe_config->name.link_m, \ + pipe_config->name.link_n); \ + ret = false; \ + } \ +} while (0) + +#define PIPE_CONF_CHECK_TIMINGS(name) do { \ + PIPE_CONF_CHECK_I(name.crtc_hdisplay); \ + PIPE_CONF_CHECK_I(name.crtc_htotal); \ + PIPE_CONF_CHECK_I(name.crtc_hblank_start); \ + PIPE_CONF_CHECK_I(name.crtc_hblank_end); \ + PIPE_CONF_CHECK_I(name.crtc_hsync_start); \ + PIPE_CONF_CHECK_I(name.crtc_hsync_end); \ + PIPE_CONF_CHECK_I(name.crtc_vdisplay); \ + PIPE_CONF_CHECK_I(name.crtc_vtotal); \ + PIPE_CONF_CHECK_I(name.crtc_vblank_start); \ + PIPE_CONF_CHECK_I(name.crtc_vblank_end); \ + PIPE_CONF_CHECK_I(name.crtc_vsync_start); \ + PIPE_CONF_CHECK_I(name.crtc_vsync_end); \ +} while (0) + +#define PIPE_CONF_CHECK_RECT(name) do { \ + PIPE_CONF_CHECK_I(name.x1); \ + PIPE_CONF_CHECK_I(name.x2); \ + PIPE_CONF_CHECK_I(name.y1); \ + PIPE_CONF_CHECK_I(name.y2); \ +} while (0) + +#define PIPE_CONF_CHECK_FLAGS(name, mask) do { \ + if ((current_config->name ^ pipe_config->name) & (mask)) { \ + pipe_config_mismatch(fastset, crtc, __stringify(name), \ + "(%x) (expected %i, found %i)", \ + (mask), \ + current_config->name & (mask), \ + pipe_config->name & (mask)); \ + ret = false; \ + } \ +} while (0) + +#define PIPE_CONF_CHECK_INFOFRAME(name) do { \ + if (!intel_compare_infoframe(¤t_config->infoframes.name, \ + &pipe_config->infoframes.name)) { \ + pipe_config_infoframe_mismatch(dev_priv, fastset, __stringify(name), \ + ¤t_config->infoframes.name, \ + &pipe_config->infoframes.name); \ + ret = false; \ + } \ +} while (0) + +#define PIPE_CONF_CHECK_DP_VSC_SDP(name) do { \ + if (!current_config->has_psr && !pipe_config->has_psr && \ + !intel_compare_dp_vsc_sdp(¤t_config->infoframes.name, \ + &pipe_config->infoframes.name)) { \ + pipe_config_dp_vsc_sdp_mismatch(dev_priv, fastset, __stringify(name), \ + ¤t_config->infoframes.name, \ + &pipe_config->infoframes.name); \ + ret = false; \ + } \ +} while (0) + +#define PIPE_CONF_CHECK_BUFFER(name, len) do { \ + BUILD_BUG_ON(sizeof(current_config->name) != (len)); \ + BUILD_BUG_ON(sizeof(pipe_config->name) != (len)); \ + if (!intel_compare_buffer(current_config->name, pipe_config->name, (len))) { \ + pipe_config_buffer_mismatch(dev_priv, fastset, __stringify(name), \ + current_config->name, \ + pipe_config->name, \ + (len)); \ + ret = false; \ + } \ +} while (0) + +#define PIPE_CONF_CHECK_COLOR_LUT(lut, is_pre_csc_lut) do { \ + if (current_config->gamma_mode == pipe_config->gamma_mode && \ + !intel_color_lut_equal(current_config, \ + current_config->lut, pipe_config->lut, \ + is_pre_csc_lut)) { \ + pipe_config_mismatch(fastset, crtc, __stringify(lut), \ + "hw_state doesn't match sw_state"); \ + ret = false; \ + } \ +} while (0) + +#define PIPE_CONF_CHECK_CSC(name) do { \ + PIPE_CONF_CHECK_X(name.preoff[0]); \ + PIPE_CONF_CHECK_X(name.preoff[1]); \ + PIPE_CONF_CHECK_X(name.preoff[2]); \ + PIPE_CONF_CHECK_X(name.coeff[0]); \ + PIPE_CONF_CHECK_X(name.coeff[1]); \ + PIPE_CONF_CHECK_X(name.coeff[2]); \ + PIPE_CONF_CHECK_X(name.coeff[3]); \ + PIPE_CONF_CHECK_X(name.coeff[4]); \ + PIPE_CONF_CHECK_X(name.coeff[5]); \ + PIPE_CONF_CHECK_X(name.coeff[6]); \ + PIPE_CONF_CHECK_X(name.coeff[7]); \ + PIPE_CONF_CHECK_X(name.coeff[8]); \ + PIPE_CONF_CHECK_X(name.postoff[0]); \ + PIPE_CONF_CHECK_X(name.postoff[1]); \ + PIPE_CONF_CHECK_X(name.postoff[2]); \ +} while (0) + +#define PIPE_CONF_QUIRK(quirk) \ + ((current_config->quirks | pipe_config->quirks) & (quirk)) + + PIPE_CONF_CHECK_I(hw.enable); + PIPE_CONF_CHECK_I(hw.active); + + PIPE_CONF_CHECK_I(cpu_transcoder); + PIPE_CONF_CHECK_I(mst_master_transcoder); + + PIPE_CONF_CHECK_BOOL(has_pch_encoder); + PIPE_CONF_CHECK_I(fdi_lanes); + PIPE_CONF_CHECK_M_N(fdi_m_n); + + PIPE_CONF_CHECK_I(lane_count); + PIPE_CONF_CHECK_X(lane_lat_optim_mask); + + if (HAS_DOUBLE_BUFFERED_M_N(dev_priv)) { + if (!fastset || !pipe_config->seamless_m_n) + PIPE_CONF_CHECK_M_N(dp_m_n); + } else { + PIPE_CONF_CHECK_M_N(dp_m_n); + PIPE_CONF_CHECK_M_N(dp_m2_n2); + } + + PIPE_CONF_CHECK_X(output_types); + + PIPE_CONF_CHECK_I(framestart_delay); + PIPE_CONF_CHECK_I(msa_timing_delay); + + PIPE_CONF_CHECK_TIMINGS(hw.pipe_mode); + PIPE_CONF_CHECK_TIMINGS(hw.adjusted_mode); + + PIPE_CONF_CHECK_I(pixel_multiplier); + + PIPE_CONF_CHECK_FLAGS(hw.adjusted_mode.flags, + DRM_MODE_FLAG_INTERLACE); + + if (!PIPE_CONF_QUIRK(PIPE_CONFIG_QUIRK_MODE_SYNC_FLAGS)) { + PIPE_CONF_CHECK_FLAGS(hw.adjusted_mode.flags, + DRM_MODE_FLAG_PHSYNC); + PIPE_CONF_CHECK_FLAGS(hw.adjusted_mode.flags, + DRM_MODE_FLAG_NHSYNC); + PIPE_CONF_CHECK_FLAGS(hw.adjusted_mode.flags, + DRM_MODE_FLAG_PVSYNC); + PIPE_CONF_CHECK_FLAGS(hw.adjusted_mode.flags, + DRM_MODE_FLAG_NVSYNC); + } + + PIPE_CONF_CHECK_I(output_format); + PIPE_CONF_CHECK_BOOL(has_hdmi_sink); + if ((DISPLAY_VER(dev_priv) < 8 && !IS_HASWELL(dev_priv)) || + IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) + PIPE_CONF_CHECK_BOOL(limited_color_range); + + PIPE_CONF_CHECK_BOOL(hdmi_scrambling); + PIPE_CONF_CHECK_BOOL(hdmi_high_tmds_clock_ratio); + PIPE_CONF_CHECK_BOOL(has_infoframe); + PIPE_CONF_CHECK_BOOL(enhanced_framing); + PIPE_CONF_CHECK_BOOL(fec_enable); + + PIPE_CONF_CHECK_BOOL_INCOMPLETE(has_audio); + PIPE_CONF_CHECK_BUFFER(eld, MAX_ELD_BYTES); + + PIPE_CONF_CHECK_X(gmch_pfit.control); + /* pfit ratios are autocomputed by the hw on gen4+ */ + if (DISPLAY_VER(dev_priv) < 4) + PIPE_CONF_CHECK_X(gmch_pfit.pgm_ratios); + PIPE_CONF_CHECK_X(gmch_pfit.lvds_border_bits); + + /* + * Changing the EDP transcoder input mux + * (A_ONOFF vs. A_ON) requires a full modeset. + */ + PIPE_CONF_CHECK_BOOL(pch_pfit.force_thru); + + if (!fastset) { + PIPE_CONF_CHECK_RECT(pipe_src); + + PIPE_CONF_CHECK_BOOL(pch_pfit.enabled); + PIPE_CONF_CHECK_RECT(pch_pfit.dst); + + PIPE_CONF_CHECK_I(scaler_state.scaler_id); + PIPE_CONF_CHECK_I(pixel_rate); + + PIPE_CONF_CHECK_X(gamma_mode); + if (IS_CHERRYVIEW(dev_priv)) + PIPE_CONF_CHECK_X(cgm_mode); + else + PIPE_CONF_CHECK_X(csc_mode); + PIPE_CONF_CHECK_BOOL(gamma_enable); + PIPE_CONF_CHECK_BOOL(csc_enable); + PIPE_CONF_CHECK_BOOL(wgc_enable); + + PIPE_CONF_CHECK_I(linetime); + PIPE_CONF_CHECK_I(ips_linetime); + + PIPE_CONF_CHECK_COLOR_LUT(pre_csc_lut, true); + PIPE_CONF_CHECK_COLOR_LUT(post_csc_lut, false); + + PIPE_CONF_CHECK_CSC(csc); + PIPE_CONF_CHECK_CSC(output_csc); + + if (current_config->active_planes) { + PIPE_CONF_CHECK_BOOL(has_psr); + PIPE_CONF_CHECK_BOOL(has_psr2); + PIPE_CONF_CHECK_BOOL(enable_psr2_sel_fetch); + PIPE_CONF_CHECK_I(dc3co_exitline); + } + } + + PIPE_CONF_CHECK_BOOL(double_wide); + + if (dev_priv->display.dpll.mgr) { + PIPE_CONF_CHECK_P(shared_dpll); + + PIPE_CONF_CHECK_X(dpll_hw_state.dpll); + PIPE_CONF_CHECK_X(dpll_hw_state.dpll_md); + PIPE_CONF_CHECK_X(dpll_hw_state.fp0); + PIPE_CONF_CHECK_X(dpll_hw_state.fp1); + PIPE_CONF_CHECK_X(dpll_hw_state.wrpll); + PIPE_CONF_CHECK_X(dpll_hw_state.spll); + PIPE_CONF_CHECK_X(dpll_hw_state.ctrl1); + PIPE_CONF_CHECK_X(dpll_hw_state.cfgcr1); + PIPE_CONF_CHECK_X(dpll_hw_state.cfgcr2); + PIPE_CONF_CHECK_X(dpll_hw_state.cfgcr0); + PIPE_CONF_CHECK_X(dpll_hw_state.div0); + PIPE_CONF_CHECK_X(dpll_hw_state.ebb0); + PIPE_CONF_CHECK_X(dpll_hw_state.ebb4); + PIPE_CONF_CHECK_X(dpll_hw_state.pll0); + PIPE_CONF_CHECK_X(dpll_hw_state.pll1); + PIPE_CONF_CHECK_X(dpll_hw_state.pll2); + PIPE_CONF_CHECK_X(dpll_hw_state.pll3); + PIPE_CONF_CHECK_X(dpll_hw_state.pll6); + PIPE_CONF_CHECK_X(dpll_hw_state.pll8); + PIPE_CONF_CHECK_X(dpll_hw_state.pll9); + PIPE_CONF_CHECK_X(dpll_hw_state.pll10); + PIPE_CONF_CHECK_X(dpll_hw_state.pcsdw12); + PIPE_CONF_CHECK_X(dpll_hw_state.mg_refclkin_ctl); + PIPE_CONF_CHECK_X(dpll_hw_state.mg_clktop2_coreclkctl1); + PIPE_CONF_CHECK_X(dpll_hw_state.mg_clktop2_hsclkctl); + PIPE_CONF_CHECK_X(dpll_hw_state.mg_pll_div0); + PIPE_CONF_CHECK_X(dpll_hw_state.mg_pll_div1); + PIPE_CONF_CHECK_X(dpll_hw_state.mg_pll_lf); + PIPE_CONF_CHECK_X(dpll_hw_state.mg_pll_frac_lock); + PIPE_CONF_CHECK_X(dpll_hw_state.mg_pll_ssc); + PIPE_CONF_CHECK_X(dpll_hw_state.mg_pll_bias); + PIPE_CONF_CHECK_X(dpll_hw_state.mg_pll_tdc_coldst_bias); + } + + PIPE_CONF_CHECK_X(dsi_pll.ctrl); + PIPE_CONF_CHECK_X(dsi_pll.div); + + if (IS_G4X(dev_priv) || DISPLAY_VER(dev_priv) >= 5) + PIPE_CONF_CHECK_I(pipe_bpp); + + if (!fastset || !pipe_config->seamless_m_n) { + PIPE_CONF_CHECK_I(hw.pipe_mode.crtc_clock); + PIPE_CONF_CHECK_I(hw.adjusted_mode.crtc_clock); + } + PIPE_CONF_CHECK_I(port_clock); + + PIPE_CONF_CHECK_I(min_voltage_level); + + if (current_config->has_psr || pipe_config->has_psr) + PIPE_CONF_CHECK_X_WITH_MASK(infoframes.enable, + ~intel_hdmi_infoframe_enable(DP_SDP_VSC)); + else + PIPE_CONF_CHECK_X(infoframes.enable); + + PIPE_CONF_CHECK_X(infoframes.gcp); + PIPE_CONF_CHECK_INFOFRAME(avi); + PIPE_CONF_CHECK_INFOFRAME(spd); + PIPE_CONF_CHECK_INFOFRAME(hdmi); + PIPE_CONF_CHECK_INFOFRAME(drm); + PIPE_CONF_CHECK_DP_VSC_SDP(vsc); + + PIPE_CONF_CHECK_X(sync_mode_slaves_mask); + PIPE_CONF_CHECK_I(master_transcoder); + PIPE_CONF_CHECK_X(bigjoiner_pipes); + + PIPE_CONF_CHECK_I(dsc.compression_enable); + PIPE_CONF_CHECK_I(dsc.dsc_split); + PIPE_CONF_CHECK_I(dsc.compressed_bpp); + + PIPE_CONF_CHECK_BOOL(splitter.enable); + PIPE_CONF_CHECK_I(splitter.link_count); + PIPE_CONF_CHECK_I(splitter.pixel_overlap); + + if (!fastset) + PIPE_CONF_CHECK_BOOL(vrr.enable); + PIPE_CONF_CHECK_I(vrr.vmin); + PIPE_CONF_CHECK_I(vrr.vmax); + PIPE_CONF_CHECK_I(vrr.flipline); + PIPE_CONF_CHECK_I(vrr.pipeline_full); + PIPE_CONF_CHECK_I(vrr.guardband); + +#undef PIPE_CONF_CHECK_X +#undef PIPE_CONF_CHECK_I +#undef PIPE_CONF_CHECK_BOOL +#undef PIPE_CONF_CHECK_BOOL_INCOMPLETE +#undef PIPE_CONF_CHECK_P +#undef PIPE_CONF_CHECK_FLAGS +#undef PIPE_CONF_CHECK_COLOR_LUT +#undef PIPE_CONF_CHECK_TIMINGS +#undef PIPE_CONF_CHECK_RECT +#undef PIPE_CONF_QUIRK + + return ret; +} + +static void +intel_verify_planes(struct intel_atomic_state *state) +{ + struct intel_plane *plane; + const struct intel_plane_state *plane_state; + int i; + + for_each_new_intel_plane_in_state(state, plane, + plane_state, i) + assert_plane(plane, plane_state->planar_slave || + plane_state->uapi.visible); +} + +int intel_modeset_all_pipes(struct intel_atomic_state *state, + const char *reason) +{ + struct drm_i915_private *dev_priv = to_i915(state->base.dev); + struct intel_crtc *crtc; + + /* + * Add all pipes to the state, and force + * a modeset on all the active ones. + */ + for_each_intel_crtc(&dev_priv->drm, crtc) { + struct intel_crtc_state *crtc_state; + int ret; + + crtc_state = intel_atomic_get_crtc_state(&state->base, crtc); + if (IS_ERR(crtc_state)) + return PTR_ERR(crtc_state); + + if (!crtc_state->hw.active || + intel_crtc_needs_modeset(crtc_state)) + continue; + + drm_dbg_kms(&dev_priv->drm, "[CRTC:%d:%s] Full modeset due to %s\n", + crtc->base.base.id, crtc->base.name, reason); + + crtc_state->uapi.mode_changed = true; + crtc_state->update_pipe = false; + + ret = drm_atomic_add_affected_connectors(&state->base, + &crtc->base); + if (ret) + return ret; + + ret = intel_dp_mst_add_topology_state_for_crtc(state, crtc); + if (ret) + return ret; + + ret = intel_atomic_add_affected_planes(state, crtc); + if (ret) + return ret; + + crtc_state->update_planes |= crtc_state->active_planes; + crtc_state->async_flip_planes = 0; + crtc_state->do_async_flip = false; + } + + return 0; +} + +/* + * This implements the workaround described in the "notes" section of the mode + * set sequence documentation. When going from no pipes or single pipe to + * multiple pipes, and planes are enabled after the pipe, we need to wait at + * least 2 vblanks on the first pipe before enabling planes on the second pipe. + */ +static int hsw_mode_set_planes_workaround(struct intel_atomic_state *state) +{ + struct intel_crtc_state *crtc_state; + struct intel_crtc *crtc; + struct intel_crtc_state *first_crtc_state = NULL; + struct intel_crtc_state *other_crtc_state = NULL; + enum pipe first_pipe = INVALID_PIPE, enabled_pipe = INVALID_PIPE; + int i; + + /* look at all crtc's that are going to be enabled in during modeset */ + for_each_new_intel_crtc_in_state(state, crtc, crtc_state, i) { + if (!crtc_state->hw.active || + !intel_crtc_needs_modeset(crtc_state)) + continue; + + if (first_crtc_state) { + other_crtc_state = crtc_state; + break; + } else { + first_crtc_state = crtc_state; + first_pipe = crtc->pipe; + } + } + + /* No workaround needed? */ + if (!first_crtc_state) + return 0; + + /* w/a possibly needed, check how many crtc's are already enabled. */ + for_each_intel_crtc(state->base.dev, crtc) { + crtc_state = intel_atomic_get_crtc_state(&state->base, crtc); + if (IS_ERR(crtc_state)) + return PTR_ERR(crtc_state); + + crtc_state->hsw_workaround_pipe = INVALID_PIPE; + + if (!crtc_state->hw.active || + intel_crtc_needs_modeset(crtc_state)) + continue; + + /* 2 or more enabled crtcs means no need for w/a */ + if (enabled_pipe != INVALID_PIPE) + return 0; + + enabled_pipe = crtc->pipe; + } + + if (enabled_pipe != INVALID_PIPE) + first_crtc_state->hsw_workaround_pipe = enabled_pipe; + else if (other_crtc_state) + other_crtc_state->hsw_workaround_pipe = first_pipe; + + return 0; +} + +u8 intel_calc_active_pipes(struct intel_atomic_state *state, + u8 active_pipes) +{ + const struct intel_crtc_state *crtc_state; + struct intel_crtc *crtc; + int i; + + for_each_new_intel_crtc_in_state(state, crtc, crtc_state, i) { + if (crtc_state->hw.active) + active_pipes |= BIT(crtc->pipe); + else + active_pipes &= ~BIT(crtc->pipe); + } + + return active_pipes; +} + +static int intel_modeset_checks(struct intel_atomic_state *state) +{ + struct drm_i915_private *dev_priv = to_i915(state->base.dev); + + state->modeset = true; + + if (IS_HASWELL(dev_priv)) + return hsw_mode_set_planes_workaround(state); + + return 0; +} + +static void intel_crtc_check_fastset(const struct intel_crtc_state *old_crtc_state, + struct intel_crtc_state *new_crtc_state) +{ + struct drm_i915_private *i915 = to_i915(old_crtc_state->uapi.crtc->dev); + + if (!intel_pipe_config_compare(old_crtc_state, new_crtc_state, true)) { + drm_dbg_kms(&i915->drm, "fastset requirement not met, forcing full modeset\n"); + + return; + } + + new_crtc_state->uapi.mode_changed = false; + if (!intel_crtc_needs_modeset(new_crtc_state)) + new_crtc_state->update_pipe = true; +} + +static int intel_crtc_add_planes_to_state(struct intel_atomic_state *state, + struct intel_crtc *crtc, + u8 plane_ids_mask) +{ + struct drm_i915_private *dev_priv = to_i915(state->base.dev); + struct intel_plane *plane; + + for_each_intel_plane_on_crtc(&dev_priv->drm, crtc, plane) { + struct intel_plane_state *plane_state; + + if ((plane_ids_mask & BIT(plane->id)) == 0) + continue; + + plane_state = intel_atomic_get_plane_state(state, plane); + if (IS_ERR(plane_state)) + return PTR_ERR(plane_state); + } + + return 0; +} + +int intel_atomic_add_affected_planes(struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + const struct intel_crtc_state *old_crtc_state = + intel_atomic_get_old_crtc_state(state, crtc); + const struct intel_crtc_state *new_crtc_state = + intel_atomic_get_new_crtc_state(state, crtc); + + return intel_crtc_add_planes_to_state(state, crtc, + old_crtc_state->enabled_planes | + new_crtc_state->enabled_planes); +} + +static bool active_planes_affects_min_cdclk(struct drm_i915_private *dev_priv) +{ + /* See {hsw,vlv,ivb}_plane_ratio() */ + return IS_BROADWELL(dev_priv) || IS_HASWELL(dev_priv) || + IS_CHERRYVIEW(dev_priv) || IS_VALLEYVIEW(dev_priv) || + IS_IVYBRIDGE(dev_priv); +} + +static int intel_crtc_add_bigjoiner_planes(struct intel_atomic_state *state, + struct intel_crtc *crtc, + struct intel_crtc *other) +{ + const struct intel_plane_state __maybe_unused *plane_state; + struct intel_plane *plane; + u8 plane_ids = 0; + int i; + + for_each_new_intel_plane_in_state(state, plane, plane_state, i) { + if (plane->pipe == crtc->pipe) + plane_ids |= BIT(plane->id); + } + + return intel_crtc_add_planes_to_state(state, other, plane_ids); +} + +static int intel_bigjoiner_add_affected_planes(struct intel_atomic_state *state) +{ + struct drm_i915_private *i915 = to_i915(state->base.dev); + const struct intel_crtc_state *crtc_state; + struct intel_crtc *crtc; + int i; + + for_each_new_intel_crtc_in_state(state, crtc, crtc_state, i) { + struct intel_crtc *other; + + for_each_intel_crtc_in_pipe_mask(&i915->drm, other, + crtc_state->bigjoiner_pipes) { + int ret; + + if (crtc == other) + continue; + + ret = intel_crtc_add_bigjoiner_planes(state, crtc, other); + if (ret) + return ret; + } + } + + return 0; +} + +static int intel_atomic_check_planes(struct intel_atomic_state *state) +{ + struct drm_i915_private *dev_priv = to_i915(state->base.dev); + struct intel_crtc_state *old_crtc_state, *new_crtc_state; + struct intel_plane_state __maybe_unused *plane_state; + struct intel_plane *plane; + struct intel_crtc *crtc; + int i, ret; + + ret = icl_add_linked_planes(state); + if (ret) + return ret; + + ret = intel_bigjoiner_add_affected_planes(state); + if (ret) + return ret; + + for_each_new_intel_plane_in_state(state, plane, plane_state, i) { + ret = intel_plane_atomic_check(state, plane); + if (ret) { + drm_dbg_atomic(&dev_priv->drm, + "[PLANE:%d:%s] atomic driver check failed\n", + plane->base.base.id, plane->base.name); + return ret; + } + } + + for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state, + new_crtc_state, i) { + u8 old_active_planes, new_active_planes; + + ret = icl_check_nv12_planes(new_crtc_state); + if (ret) + return ret; + + /* + * On some platforms the number of active planes affects + * the planes' minimum cdclk calculation. Add such planes + * to the state before we compute the minimum cdclk. + */ + if (!active_planes_affects_min_cdclk(dev_priv)) + continue; + + old_active_planes = old_crtc_state->active_planes & ~BIT(PLANE_CURSOR); + new_active_planes = new_crtc_state->active_planes & ~BIT(PLANE_CURSOR); + + if (hweight8(old_active_planes) == hweight8(new_active_planes)) + continue; + + ret = intel_crtc_add_planes_to_state(state, crtc, new_active_planes); + if (ret) + return ret; + } + + return 0; +} + +static int intel_atomic_check_crtcs(struct intel_atomic_state *state) +{ + struct intel_crtc_state __maybe_unused *crtc_state; + struct intel_crtc *crtc; + int i; + + for_each_new_intel_crtc_in_state(state, crtc, crtc_state, i) { + struct drm_i915_private *i915 = to_i915(crtc->base.dev); + int ret; + + ret = intel_crtc_atomic_check(state, crtc); + if (ret) { + drm_dbg_atomic(&i915->drm, + "[CRTC:%d:%s] atomic driver check failed\n", + crtc->base.base.id, crtc->base.name); + return ret; + } + } + + return 0; +} + +static bool intel_cpu_transcoders_need_modeset(struct intel_atomic_state *state, + u8 transcoders) +{ + const struct intel_crtc_state *new_crtc_state; + struct intel_crtc *crtc; + int i; + + for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i) { + if (new_crtc_state->hw.enable && + transcoders & BIT(new_crtc_state->cpu_transcoder) && + intel_crtc_needs_modeset(new_crtc_state)) + return true; + } + + return false; +} + +static bool intel_pipes_need_modeset(struct intel_atomic_state *state, + u8 pipes) +{ + const struct intel_crtc_state *new_crtc_state; + struct intel_crtc *crtc; + int i; + + for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i) { + if (new_crtc_state->hw.enable && + pipes & BIT(crtc->pipe) && + intel_crtc_needs_modeset(new_crtc_state)) + return true; + } + + return false; +} + +static int intel_atomic_check_bigjoiner(struct intel_atomic_state *state, + struct intel_crtc *master_crtc) +{ + struct drm_i915_private *i915 = to_i915(state->base.dev); + struct intel_crtc_state *master_crtc_state = + intel_atomic_get_new_crtc_state(state, master_crtc); + struct intel_crtc *slave_crtc; + + if (!master_crtc_state->bigjoiner_pipes) + return 0; + + /* sanity check */ + if (drm_WARN_ON(&i915->drm, + master_crtc->pipe != bigjoiner_master_pipe(master_crtc_state))) + return -EINVAL; + + if (master_crtc_state->bigjoiner_pipes & ~bigjoiner_pipes(i915)) { + drm_dbg_kms(&i915->drm, + "[CRTC:%d:%s] Cannot act as big joiner master " + "(need 0x%x as pipes, only 0x%x possible)\n", + master_crtc->base.base.id, master_crtc->base.name, + master_crtc_state->bigjoiner_pipes, bigjoiner_pipes(i915)); + return -EINVAL; + } + + for_each_intel_crtc_in_pipe_mask(&i915->drm, slave_crtc, + intel_crtc_bigjoiner_slave_pipes(master_crtc_state)) { + struct intel_crtc_state *slave_crtc_state; + int ret; + + slave_crtc_state = intel_atomic_get_crtc_state(&state->base, slave_crtc); + if (IS_ERR(slave_crtc_state)) + return PTR_ERR(slave_crtc_state); + + /* master being enabled, slave was already configured? */ + if (slave_crtc_state->uapi.enable) { + drm_dbg_kms(&i915->drm, + "[CRTC:%d:%s] Slave is enabled as normal CRTC, but " + "[CRTC:%d:%s] claiming this CRTC for bigjoiner.\n", + slave_crtc->base.base.id, slave_crtc->base.name, + master_crtc->base.base.id, master_crtc->base.name); + return -EINVAL; + } + + /* + * The state copy logic assumes the master crtc gets processed + * before the slave crtc during the main compute_config loop. + * This works because the crtcs are created in pipe order, + * and the hardware requires master pipe < slave pipe as well. + * Should that change we need to rethink the logic. + */ + if (WARN_ON(drm_crtc_index(&master_crtc->base) > + drm_crtc_index(&slave_crtc->base))) + return -EINVAL; + + drm_dbg_kms(&i915->drm, + "[CRTC:%d:%s] Used as slave for big joiner master [CRTC:%d:%s]\n", + slave_crtc->base.base.id, slave_crtc->base.name, + master_crtc->base.base.id, master_crtc->base.name); + + slave_crtc_state->bigjoiner_pipes = + master_crtc_state->bigjoiner_pipes; + + ret = copy_bigjoiner_crtc_state_modeset(state, slave_crtc); + if (ret) + return ret; + } + + return 0; +} + +static void kill_bigjoiner_slave(struct intel_atomic_state *state, + struct intel_crtc *master_crtc) +{ + struct drm_i915_private *i915 = to_i915(state->base.dev); + struct intel_crtc_state *master_crtc_state = + intel_atomic_get_new_crtc_state(state, master_crtc); + struct intel_crtc *slave_crtc; + + for_each_intel_crtc_in_pipe_mask(&i915->drm, slave_crtc, + intel_crtc_bigjoiner_slave_pipes(master_crtc_state)) { + struct intel_crtc_state *slave_crtc_state = + intel_atomic_get_new_crtc_state(state, slave_crtc); + + slave_crtc_state->bigjoiner_pipes = 0; + + intel_crtc_copy_uapi_to_hw_state_modeset(state, slave_crtc); + } + + master_crtc_state->bigjoiner_pipes = 0; +} + +/** + * DOC: asynchronous flip implementation + * + * Asynchronous page flip is the implementation for the DRM_MODE_PAGE_FLIP_ASYNC + * flag. Currently async flip is only supported via the drmModePageFlip IOCTL. + * Correspondingly, support is currently added for primary plane only. + * + * Async flip can only change the plane surface address, so anything else + * changing is rejected from the intel_async_flip_check_hw() function. + * Once this check is cleared, flip done interrupt is enabled using + * the intel_crtc_enable_flip_done() function. + * + * As soon as the surface address register is written, flip done interrupt is + * generated and the requested events are sent to the usersapce in the interrupt + * handler itself. The timestamp and sequence sent during the flip done event + * correspond to the last vblank and have no relation to the actual time when + * the flip done event was sent. + */ +static int intel_async_flip_check_uapi(struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + struct drm_i915_private *i915 = to_i915(state->base.dev); + const struct intel_crtc_state *new_crtc_state = + intel_atomic_get_new_crtc_state(state, crtc); + const struct intel_plane_state *old_plane_state; + struct intel_plane_state *new_plane_state; + struct intel_plane *plane; + int i; + + if (!new_crtc_state->uapi.async_flip) + return 0; + + if (!new_crtc_state->uapi.active) { + drm_dbg_kms(&i915->drm, + "[CRTC:%d:%s] not active\n", + crtc->base.base.id, crtc->base.name); + return -EINVAL; + } + + if (intel_crtc_needs_modeset(new_crtc_state)) { + drm_dbg_kms(&i915->drm, + "[CRTC:%d:%s] modeset required\n", + crtc->base.base.id, crtc->base.name); + return -EINVAL; + } + + for_each_oldnew_intel_plane_in_state(state, plane, old_plane_state, + new_plane_state, i) { + if (plane->pipe != crtc->pipe) + continue; + + /* + * TODO: Async flip is only supported through the page flip IOCTL + * as of now. So support currently added for primary plane only. + * Support for other planes on platforms on which supports + * this(vlv/chv and icl+) should be added when async flip is + * enabled in the atomic IOCTL path. + */ + if (!plane->async_flip) { + drm_dbg_kms(&i915->drm, + "[PLANE:%d:%s] async flip not supported\n", + plane->base.base.id, plane->base.name); + return -EINVAL; + } + + if (!old_plane_state->uapi.fb || !new_plane_state->uapi.fb) { + drm_dbg_kms(&i915->drm, + "[PLANE:%d:%s] no old or new framebuffer\n", + plane->base.base.id, plane->base.name); + return -EINVAL; + } + } + + return 0; +} + +static int intel_async_flip_check_hw(struct intel_atomic_state *state, struct intel_crtc *crtc) +{ + struct drm_i915_private *i915 = to_i915(state->base.dev); + const struct intel_crtc_state *old_crtc_state, *new_crtc_state; + const struct intel_plane_state *new_plane_state, *old_plane_state; + struct intel_plane *plane; + int i; + + old_crtc_state = intel_atomic_get_old_crtc_state(state, crtc); + new_crtc_state = intel_atomic_get_new_crtc_state(state, crtc); + + if (!new_crtc_state->uapi.async_flip) + return 0; + + if (!new_crtc_state->hw.active) { + drm_dbg_kms(&i915->drm, + "[CRTC:%d:%s] not active\n", + crtc->base.base.id, crtc->base.name); + return -EINVAL; + } + + if (intel_crtc_needs_modeset(new_crtc_state)) { + drm_dbg_kms(&i915->drm, + "[CRTC:%d:%s] modeset required\n", + crtc->base.base.id, crtc->base.name); + return -EINVAL; + } + + if (old_crtc_state->active_planes != new_crtc_state->active_planes) { + drm_dbg_kms(&i915->drm, + "[CRTC:%d:%s] Active planes cannot be in async flip\n", + crtc->base.base.id, crtc->base.name); + return -EINVAL; + } + + /* + * FIXME: Bigjoiner+async flip is busted currently. + * Remove this check once the issues are fixed. + */ + if (new_crtc_state->bigjoiner_pipes) { + drm_dbg_kms(&i915->drm, + "[CRTC:%d:%s] async flip disallowed with bigjoiner\n", + crtc->base.base.id, crtc->base.name); + return -EINVAL; + } + + for_each_oldnew_intel_plane_in_state(state, plane, old_plane_state, + new_plane_state, i) { + if (plane->pipe != crtc->pipe) + continue; + + /* + * Only async flip capable planes should be in the state + * if we're really about to ask the hardware to perform + * an async flip. We should never get this far otherwise. + */ + if (drm_WARN_ON(&i915->drm, + new_crtc_state->do_async_flip && !plane->async_flip)) + return -EINVAL; + + /* + * Only check async flip capable planes other planes + * may be involved in the initial commit due to + * the wm0/ddb optimization. + * + * TODO maybe should track which planes actually + * were requested to do the async flip... + */ + if (!plane->async_flip) + continue; + + /* + * FIXME: This check is kept generic for all platforms. + * Need to verify this for all gen9 platforms to enable + * this selectively if required. + */ + switch (new_plane_state->hw.fb->modifier) { + case DRM_FORMAT_MOD_LINEAR: + /* + * FIXME: Async on Linear buffer is supported on ICL as + * but with additional alignment and fbc restrictions + * need to be taken care of. These aren't applicable for + * gen12+. + */ + if (DISPLAY_VER(i915) < 12) { + drm_dbg_kms(&i915->drm, + "[PLANE:%d:%s] Modifier 0x%llx does not support async flip on display ver %d\n", + plane->base.base.id, plane->base.name, + new_plane_state->hw.fb->modifier, DISPLAY_VER(i915)); + return -EINVAL; + } + break; + + case I915_FORMAT_MOD_X_TILED: + case I915_FORMAT_MOD_Y_TILED: + case I915_FORMAT_MOD_Yf_TILED: + case I915_FORMAT_MOD_4_TILED: + break; + default: + drm_dbg_kms(&i915->drm, + "[PLANE:%d:%s] Modifier 0x%llx does not support async flip\n", + plane->base.base.id, plane->base.name, + new_plane_state->hw.fb->modifier); + return -EINVAL; + } + + if (new_plane_state->hw.fb->format->num_planes > 1) { + drm_dbg_kms(&i915->drm, + "[PLANE:%d:%s] Planar formats do not support async flips\n", + plane->base.base.id, plane->base.name); + return -EINVAL; + } + + if (old_plane_state->view.color_plane[0].mapping_stride != + new_plane_state->view.color_plane[0].mapping_stride) { + drm_dbg_kms(&i915->drm, + "[PLANE:%d:%s] Stride cannot be changed in async flip\n", + plane->base.base.id, plane->base.name); + return -EINVAL; + } + + if (old_plane_state->hw.fb->modifier != + new_plane_state->hw.fb->modifier) { + drm_dbg_kms(&i915->drm, + "[PLANE:%d:%s] Modifier cannot be changed in async flip\n", + plane->base.base.id, plane->base.name); + return -EINVAL; + } + + if (old_plane_state->hw.fb->format != + new_plane_state->hw.fb->format) { + drm_dbg_kms(&i915->drm, + "[PLANE:%d:%s] Pixel format cannot be changed in async flip\n", + plane->base.base.id, plane->base.name); + return -EINVAL; + } + + if (old_plane_state->hw.rotation != + new_plane_state->hw.rotation) { + drm_dbg_kms(&i915->drm, + "[PLANE:%d:%s] Rotation cannot be changed in async flip\n", + plane->base.base.id, plane->base.name); + return -EINVAL; + } + + if (!drm_rect_equals(&old_plane_state->uapi.src, &new_plane_state->uapi.src) || + !drm_rect_equals(&old_plane_state->uapi.dst, &new_plane_state->uapi.dst)) { + drm_dbg_kms(&i915->drm, + "[PLANE:%d:%s] Size/co-ordinates cannot be changed in async flip\n", + plane->base.base.id, plane->base.name); + return -EINVAL; + } + + if (old_plane_state->hw.alpha != new_plane_state->hw.alpha) { + drm_dbg_kms(&i915->drm, + "[PLANES:%d:%s] Alpha value cannot be changed in async flip\n", + plane->base.base.id, plane->base.name); + return -EINVAL; + } + + if (old_plane_state->hw.pixel_blend_mode != + new_plane_state->hw.pixel_blend_mode) { + drm_dbg_kms(&i915->drm, + "[PLANE:%d:%s] Pixel blend mode cannot be changed in async flip\n", + plane->base.base.id, plane->base.name); + return -EINVAL; + } + + if (old_plane_state->hw.color_encoding != new_plane_state->hw.color_encoding) { + drm_dbg_kms(&i915->drm, + "[PLANE:%d:%s] Color encoding cannot be changed in async flip\n", + plane->base.base.id, plane->base.name); + return -EINVAL; + } + + if (old_plane_state->hw.color_range != new_plane_state->hw.color_range) { + drm_dbg_kms(&i915->drm, + "[PLANE:%d:%s] Color range cannot be changed in async flip\n", + plane->base.base.id, plane->base.name); + return -EINVAL; + } + + /* plane decryption is allow to change only in synchronous flips */ + if (old_plane_state->decrypt != new_plane_state->decrypt) { + drm_dbg_kms(&i915->drm, + "[PLANE:%d:%s] Decryption cannot be changed in async flip\n", + plane->base.base.id, plane->base.name); + return -EINVAL; + } + } + + return 0; +} + +static int intel_bigjoiner_add_affected_crtcs(struct intel_atomic_state *state) +{ + struct drm_i915_private *i915 = to_i915(state->base.dev); + struct intel_crtc_state *crtc_state; + struct intel_crtc *crtc; + u8 affected_pipes = 0; + u8 modeset_pipes = 0; + int i; + + for_each_new_intel_crtc_in_state(state, crtc, crtc_state, i) { + affected_pipes |= crtc_state->bigjoiner_pipes; + if (intel_crtc_needs_modeset(crtc_state)) + modeset_pipes |= crtc_state->bigjoiner_pipes; + } + + for_each_intel_crtc_in_pipe_mask(&i915->drm, crtc, affected_pipes) { + crtc_state = intel_atomic_get_crtc_state(&state->base, crtc); + if (IS_ERR(crtc_state)) + return PTR_ERR(crtc_state); + } + + for_each_intel_crtc_in_pipe_mask(&i915->drm, crtc, modeset_pipes) { + int ret; + + crtc_state = intel_atomic_get_new_crtc_state(state, crtc); + + crtc_state->uapi.mode_changed = true; + + ret = drm_atomic_add_affected_connectors(&state->base, &crtc->base); + if (ret) + return ret; + + ret = intel_atomic_add_affected_planes(state, crtc); + if (ret) + return ret; + } + + for_each_new_intel_crtc_in_state(state, crtc, crtc_state, i) { + /* Kill old bigjoiner link, we may re-establish afterwards */ + if (intel_crtc_needs_modeset(crtc_state) && + intel_crtc_is_bigjoiner_master(crtc_state)) + kill_bigjoiner_slave(state, crtc); + } + + return 0; +} + +/** + * intel_atomic_check - validate state object + * @dev: drm device + * @_state: state to validate + */ +int intel_atomic_check(struct drm_device *dev, + struct drm_atomic_state *_state) +{ + struct drm_i915_private *dev_priv = to_i915(dev); + struct intel_atomic_state *state = to_intel_atomic_state(_state); + struct intel_crtc_state *old_crtc_state, *new_crtc_state; + struct intel_crtc *crtc; + int ret, i; + bool any_ms = false; + + for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state, + new_crtc_state, i) { + /* + * crtc's state no longer considered to be inherited + * after the first userspace/client initiated commit. + */ + if (!state->internal) + new_crtc_state->inherited = false; + + if (new_crtc_state->inherited != old_crtc_state->inherited) + new_crtc_state->uapi.mode_changed = true; + + if (new_crtc_state->uapi.scaling_filter != + old_crtc_state->uapi.scaling_filter) + new_crtc_state->uapi.mode_changed = true; + } + + intel_vrr_check_modeset(state); + + ret = drm_atomic_helper_check_modeset(dev, &state->base); + if (ret) + goto fail; + + for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i) { + ret = intel_async_flip_check_uapi(state, crtc); + if (ret) + return ret; + } + + ret = intel_bigjoiner_add_affected_crtcs(state); + if (ret) + goto fail; + + for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state, + new_crtc_state, i) { + if (!intel_crtc_needs_modeset(new_crtc_state)) { + if (intel_crtc_is_bigjoiner_slave(new_crtc_state)) + copy_bigjoiner_crtc_state_nomodeset(state, crtc); + else + intel_crtc_copy_uapi_to_hw_state_nomodeset(state, crtc); + continue; + } + + if (intel_crtc_is_bigjoiner_slave(new_crtc_state)) { + drm_WARN_ON(&dev_priv->drm, new_crtc_state->uapi.enable); + continue; + } + + ret = intel_crtc_prepare_cleared_state(state, crtc); + if (ret) + goto fail; + + if (!new_crtc_state->hw.enable) + continue; + + ret = intel_modeset_pipe_config(state, crtc); + if (ret) + goto fail; + + ret = intel_atomic_check_bigjoiner(state, crtc); + if (ret) + goto fail; + } + + for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state, + new_crtc_state, i) { + if (!intel_crtc_needs_modeset(new_crtc_state)) + continue; + + if (new_crtc_state->hw.enable) { + ret = intel_modeset_pipe_config_late(state, crtc); + if (ret) + goto fail; + } + + intel_crtc_check_fastset(old_crtc_state, new_crtc_state); + } + + /** + * Check if fastset is allowed by external dependencies like other + * pipes and transcoders. + * + * Right now it only forces a fullmodeset when the MST master + * transcoder did not changed but the pipe of the master transcoder + * needs a fullmodeset so all slaves also needs to do a fullmodeset or + * in case of port synced crtcs, if one of the synced crtcs + * needs a full modeset, all other synced crtcs should be + * forced a full modeset. + */ + for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i) { + if (!new_crtc_state->hw.enable || intel_crtc_needs_modeset(new_crtc_state)) + continue; + + if (intel_dp_mst_is_slave_trans(new_crtc_state)) { + enum transcoder master = new_crtc_state->mst_master_transcoder; + + if (intel_cpu_transcoders_need_modeset(state, BIT(master))) { + new_crtc_state->uapi.mode_changed = true; + new_crtc_state->update_pipe = false; + } + } + + if (is_trans_port_sync_mode(new_crtc_state)) { + u8 trans = new_crtc_state->sync_mode_slaves_mask; + + if (new_crtc_state->master_transcoder != INVALID_TRANSCODER) + trans |= BIT(new_crtc_state->master_transcoder); + + if (intel_cpu_transcoders_need_modeset(state, trans)) { + new_crtc_state->uapi.mode_changed = true; + new_crtc_state->update_pipe = false; + } + } + + if (new_crtc_state->bigjoiner_pipes) { + if (intel_pipes_need_modeset(state, new_crtc_state->bigjoiner_pipes)) { + new_crtc_state->uapi.mode_changed = true; + new_crtc_state->update_pipe = false; + } + } + } + + for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state, + new_crtc_state, i) { + if (!intel_crtc_needs_modeset(new_crtc_state)) + continue; + + any_ms = true; + + intel_release_shared_dplls(state, crtc); + } + + if (any_ms && !check_digital_port_conflicts(state)) { + drm_dbg_kms(&dev_priv->drm, + "rejecting conflicting digital port configuration\n"); + ret = -EINVAL; + goto fail; + } + + ret = drm_dp_mst_atomic_check(&state->base); + if (ret) + goto fail; + + ret = intel_atomic_check_planes(state); + if (ret) + goto fail; + + ret = intel_compute_global_watermarks(state); + if (ret) + goto fail; + + ret = intel_bw_atomic_check(state); + if (ret) + goto fail; + + ret = intel_cdclk_atomic_check(state, &any_ms); + if (ret) + goto fail; + + if (intel_any_crtc_needs_modeset(state)) + any_ms = true; + + if (any_ms) { + ret = intel_modeset_checks(state); + if (ret) + goto fail; + + ret = intel_modeset_calc_cdclk(state); + if (ret) + return ret; + } + + ret = intel_pmdemand_atomic_check(state); + if (ret) + goto fail; + + ret = intel_atomic_check_crtcs(state); + if (ret) + goto fail; + + ret = intel_fbc_atomic_check(state); + if (ret) + goto fail; + + for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state, + new_crtc_state, i) { + intel_color_assert_luts(new_crtc_state); + + ret = intel_async_flip_check_hw(state, crtc); + if (ret) + goto fail; + + /* Either full modeset or fastset (or neither), never both */ + drm_WARN_ON(&dev_priv->drm, + intel_crtc_needs_modeset(new_crtc_state) && + intel_crtc_needs_fastset(new_crtc_state)); + + if (!intel_crtc_needs_modeset(new_crtc_state) && + !intel_crtc_needs_fastset(new_crtc_state)) + continue; + + intel_crtc_state_dump(new_crtc_state, state, + intel_crtc_needs_modeset(new_crtc_state) ? + "modeset" : "fastset"); + } + + return 0; + + fail: + if (ret == -EDEADLK) + return ret; + + /* + * FIXME would probably be nice to know which crtc specifically + * caused the failure, in cases where we can pinpoint it. + */ + for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state, + new_crtc_state, i) + intel_crtc_state_dump(new_crtc_state, state, "failed"); + + return ret; +} + +static int intel_atomic_prepare_commit(struct intel_atomic_state *state) +{ + struct intel_crtc_state *crtc_state; + struct intel_crtc *crtc; + int i, ret; + + ret = drm_atomic_helper_prepare_planes(state->base.dev, &state->base); + if (ret < 0) + return ret; + + for_each_new_intel_crtc_in_state(state, crtc, crtc_state, i) { + if (intel_crtc_needs_color_update(crtc_state)) + intel_color_prepare_commit(crtc_state); + } + + return 0; +} + +void intel_crtc_arm_fifo_underrun(struct intel_crtc *crtc, + struct intel_crtc_state *crtc_state) +{ + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + + if (DISPLAY_VER(dev_priv) != 2 || crtc_state->active_planes) + intel_set_cpu_fifo_underrun_reporting(dev_priv, crtc->pipe, true); + + if (crtc_state->has_pch_encoder) { + enum pipe pch_transcoder = + intel_crtc_pch_transcoder(crtc); + + intel_set_pch_fifo_underrun_reporting(dev_priv, pch_transcoder, true); + } +} + +static void intel_pipe_fastset(const struct intel_crtc_state *old_crtc_state, + const struct intel_crtc_state *new_crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(new_crtc_state->uapi.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + + /* + * Update pipe size and adjust fitter if needed: the reason for this is + * that in compute_mode_changes we check the native mode (not the pfit + * mode) to see if we can flip rather than do a full mode set. In the + * fastboot case, we'll flip, but if we don't update the pipesrc and + * pfit state, we'll end up with a big fb scanned out into the wrong + * sized surface. + */ + intel_set_pipe_src_size(new_crtc_state); + + /* on skylake this is done by detaching scalers */ + if (DISPLAY_VER(dev_priv) >= 9) { + if (new_crtc_state->pch_pfit.enabled) + skl_pfit_enable(new_crtc_state); + } else if (HAS_PCH_SPLIT(dev_priv)) { + if (new_crtc_state->pch_pfit.enabled) + ilk_pfit_enable(new_crtc_state); + else if (old_crtc_state->pch_pfit.enabled) + ilk_pfit_disable(old_crtc_state); + } + + /* + * The register is supposedly single buffered so perhaps + * not 100% correct to do this here. But SKL+ calculate + * this based on the adjust pixel rate so pfit changes do + * affect it and so it must be updated for fastsets. + * HSW/BDW only really need this here for fastboot, after + * that the value should not change without a full modeset. + */ + if (DISPLAY_VER(dev_priv) >= 9 || + IS_BROADWELL(dev_priv) || IS_HASWELL(dev_priv)) + hsw_set_linetime_wm(new_crtc_state); + + if (new_crtc_state->seamless_m_n) + intel_cpu_transcoder_set_m1_n1(crtc, new_crtc_state->cpu_transcoder, + &new_crtc_state->dp_m_n); +} + +static void commit_pipe_pre_planes(struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + struct drm_i915_private *dev_priv = to_i915(state->base.dev); + const struct intel_crtc_state *old_crtc_state = + intel_atomic_get_old_crtc_state(state, crtc); + const struct intel_crtc_state *new_crtc_state = + intel_atomic_get_new_crtc_state(state, crtc); + bool modeset = intel_crtc_needs_modeset(new_crtc_state); + + /* + * During modesets pipe configuration was programmed as the + * CRTC was enabled. + */ + if (!modeset) { + if (intel_crtc_needs_color_update(new_crtc_state)) + intel_color_commit_arm(new_crtc_state); + + if (DISPLAY_VER(dev_priv) >= 9 || IS_BROADWELL(dev_priv)) + bdw_set_pipe_misc(new_crtc_state); + + if (intel_crtc_needs_fastset(new_crtc_state)) + intel_pipe_fastset(old_crtc_state, new_crtc_state); + } + + intel_psr2_program_trans_man_trk_ctl(new_crtc_state); + + intel_atomic_update_watermarks(state, crtc); +} + +static void commit_pipe_post_planes(struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + struct drm_i915_private *dev_priv = to_i915(state->base.dev); + const struct intel_crtc_state *new_crtc_state = + intel_atomic_get_new_crtc_state(state, crtc); + + /* + * Disable the scaler(s) after the plane(s) so that we don't + * get a catastrophic underrun even if the two operations + * end up happening in two different frames. + */ + if (DISPLAY_VER(dev_priv) >= 9 && + !intel_crtc_needs_modeset(new_crtc_state)) + skl_detach_scalers(new_crtc_state); +} + +static void intel_enable_crtc(struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + struct drm_i915_private *dev_priv = to_i915(state->base.dev); + const struct intel_crtc_state *new_crtc_state = + intel_atomic_get_new_crtc_state(state, crtc); + + if (!intel_crtc_needs_modeset(new_crtc_state)) + return; + + /* VRR will be enable later, if required */ + intel_crtc_update_active_timings(new_crtc_state, false); + + dev_priv->display.funcs.display->crtc_enable(state, crtc); + + if (intel_crtc_is_bigjoiner_slave(new_crtc_state)) + return; + + /* vblanks work again, re-enable pipe CRC. */ + intel_crtc_enable_pipe_crc(crtc); +} + +static void intel_update_crtc(struct intel_atomic_state *state, + struct intel_crtc *crtc) +{ + struct drm_i915_private *i915 = to_i915(state->base.dev); + const struct intel_crtc_state *old_crtc_state = + intel_atomic_get_old_crtc_state(state, crtc); + struct intel_crtc_state *new_crtc_state = + intel_atomic_get_new_crtc_state(state, crtc); + bool modeset = intel_crtc_needs_modeset(new_crtc_state); + + if (old_crtc_state->inherited || + intel_crtc_needs_modeset(new_crtc_state)) { + if (HAS_DPT(i915)) + intel_dpt_configure(crtc); + } + + if (vrr_enabling(old_crtc_state, new_crtc_state)) { + intel_vrr_enable(new_crtc_state); + intel_crtc_update_active_timings(new_crtc_state, + new_crtc_state->vrr.enable); + } + + if (!modeset) { + if (new_crtc_state->preload_luts && + intel_crtc_needs_color_update(new_crtc_state)) + intel_color_load_luts(new_crtc_state); + + intel_pre_plane_update(state, crtc); + + if (intel_crtc_needs_fastset(new_crtc_state)) + intel_encoders_update_pipe(state, crtc); + + if (DISPLAY_VER(i915) >= 11 && + intel_crtc_needs_fastset(new_crtc_state)) + icl_set_pipe_chicken(new_crtc_state); + } + + intel_fbc_update(state, crtc); + + drm_WARN_ON(&i915->drm, !intel_display_power_is_enabled(i915, POWER_DOMAIN_DC_OFF)); + + if (!modeset && + intel_crtc_needs_color_update(new_crtc_state)) + intel_color_commit_noarm(new_crtc_state); + + intel_crtc_planes_update_noarm(state, crtc); + + /* Perform vblank evasion around commit operation */ + intel_pipe_update_start(new_crtc_state); + + commit_pipe_pre_planes(state, crtc); + + intel_crtc_planes_update_arm(state, crtc); + + commit_pipe_post_planes(state, crtc); + + intel_pipe_update_end(new_crtc_state); + + /* + * We usually enable FIFO underrun interrupts as part of the + * CRTC enable sequence during modesets. But when we inherit a + * valid pipe configuration from the BIOS we need to take care + * of enabling them on the CRTC's first fastset. + */ + if (intel_crtc_needs_fastset(new_crtc_state) && !modeset && + old_crtc_state->inherited) + intel_crtc_arm_fifo_underrun(crtc, new_crtc_state); +} + +static void intel_old_crtc_state_disables(struct intel_atomic_state *state, + struct intel_crtc_state *old_crtc_state, + struct intel_crtc_state *new_crtc_state, + struct intel_crtc *crtc) +{ + struct drm_i915_private *dev_priv = to_i915(state->base.dev); + + /* + * We need to disable pipe CRC before disabling the pipe, + * or we race against vblank off. + */ + intel_crtc_disable_pipe_crc(crtc); + + dev_priv->display.funcs.display->crtc_disable(state, crtc); + crtc->active = false; + intel_fbc_disable(crtc); + + if (!new_crtc_state->hw.active) + intel_initial_watermarks(state, crtc); +} + +static void intel_commit_modeset_disables(struct intel_atomic_state *state) +{ + struct intel_crtc_state *new_crtc_state, *old_crtc_state; + struct intel_crtc *crtc; + u32 handled = 0; + int i; + + for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state, + new_crtc_state, i) { + if (!intel_crtc_needs_modeset(new_crtc_state)) + continue; + + intel_pre_plane_update(state, crtc); + + if (!old_crtc_state->hw.active) + continue; + + intel_crtc_disable_planes(state, crtc); + } + + /* Only disable port sync and MST slaves */ + for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state, + new_crtc_state, i) { + if (!intel_crtc_needs_modeset(new_crtc_state)) + continue; + + if (!old_crtc_state->hw.active) + continue; + + /* In case of Transcoder port Sync master slave CRTCs can be + * assigned in any order and we need to make sure that + * slave CRTCs are disabled first and then master CRTC since + * Slave vblanks are masked till Master Vblanks. + */ + if (!is_trans_port_sync_slave(old_crtc_state) && + !intel_dp_mst_is_slave_trans(old_crtc_state) && + !intel_crtc_is_bigjoiner_slave(old_crtc_state)) + continue; + + intel_old_crtc_state_disables(state, old_crtc_state, + new_crtc_state, crtc); + handled |= BIT(crtc->pipe); + } + + /* Disable everything else left on */ + for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state, + new_crtc_state, i) { + if (!intel_crtc_needs_modeset(new_crtc_state) || + (handled & BIT(crtc->pipe))) + continue; + + if (!old_crtc_state->hw.active) + continue; + + intel_old_crtc_state_disables(state, old_crtc_state, + new_crtc_state, crtc); + } +} + +static void intel_commit_modeset_enables(struct intel_atomic_state *state) +{ + struct intel_crtc_state *new_crtc_state; + struct intel_crtc *crtc; + int i; + + for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i) { + if (!new_crtc_state->hw.active) + continue; + + intel_enable_crtc(state, crtc); + intel_update_crtc(state, crtc); + } +} + +static void skl_commit_modeset_enables(struct intel_atomic_state *state) +{ + struct drm_i915_private *dev_priv = to_i915(state->base.dev); + struct intel_crtc *crtc; + struct intel_crtc_state *old_crtc_state, *new_crtc_state; + struct skl_ddb_entry entries[I915_MAX_PIPES] = {}; + u8 update_pipes = 0, modeset_pipes = 0; + int i; + + for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { + enum pipe pipe = crtc->pipe; + + if (!new_crtc_state->hw.active) + continue; + + /* ignore allocations for crtc's that have been turned off. */ + if (!intel_crtc_needs_modeset(new_crtc_state)) { + entries[pipe] = old_crtc_state->wm.skl.ddb; + update_pipes |= BIT(pipe); + } else { + modeset_pipes |= BIT(pipe); + } + } + + /* + * Whenever the number of active pipes changes, we need to make sure we + * update the pipes in the right order so that their ddb allocations + * never overlap with each other between CRTC updates. Otherwise we'll + * cause pipe underruns and other bad stuff. + * + * So first lets enable all pipes that do not need a fullmodeset as + * those don't have any external dependency. + */ + while (update_pipes) { + for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state, + new_crtc_state, i) { + enum pipe pipe = crtc->pipe; + + if ((update_pipes & BIT(pipe)) == 0) + continue; + + if (skl_ddb_allocation_overlaps(&new_crtc_state->wm.skl.ddb, + entries, I915_MAX_PIPES, pipe)) + continue; + + entries[pipe] = new_crtc_state->wm.skl.ddb; + update_pipes &= ~BIT(pipe); + + intel_update_crtc(state, crtc); + + /* + * If this is an already active pipe, it's DDB changed, + * and this isn't the last pipe that needs updating + * then we need to wait for a vblank to pass for the + * new ddb allocation to take effect. + */ + if (!skl_ddb_entry_equal(&new_crtc_state->wm.skl.ddb, + &old_crtc_state->wm.skl.ddb) && + (update_pipes | modeset_pipes)) + intel_crtc_wait_for_next_vblank(crtc); + } + } + + update_pipes = modeset_pipes; + + /* + * Enable all pipes that needs a modeset and do not depends on other + * pipes + */ + for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i) { + enum pipe pipe = crtc->pipe; + + if ((modeset_pipes & BIT(pipe)) == 0) + continue; + + if (intel_dp_mst_is_slave_trans(new_crtc_state) || + is_trans_port_sync_master(new_crtc_state) || + intel_crtc_is_bigjoiner_master(new_crtc_state)) + continue; + + modeset_pipes &= ~BIT(pipe); + + intel_enable_crtc(state, crtc); + } + + /* + * Then we enable all remaining pipes that depend on other + * pipes: MST slaves and port sync masters, big joiner master + */ + for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i) { + enum pipe pipe = crtc->pipe; + + if ((modeset_pipes & BIT(pipe)) == 0) + continue; + + modeset_pipes &= ~BIT(pipe); + + intel_enable_crtc(state, crtc); + } + + /* + * Finally we do the plane updates/etc. for all pipes that got enabled. + */ + for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i) { + enum pipe pipe = crtc->pipe; + + if ((update_pipes & BIT(pipe)) == 0) + continue; + + drm_WARN_ON(&dev_priv->drm, skl_ddb_allocation_overlaps(&new_crtc_state->wm.skl.ddb, + entries, I915_MAX_PIPES, pipe)); + + entries[pipe] = new_crtc_state->wm.skl.ddb; + update_pipes &= ~BIT(pipe); + + intel_update_crtc(state, crtc); + } + + drm_WARN_ON(&dev_priv->drm, modeset_pipes); + drm_WARN_ON(&dev_priv->drm, update_pipes); +} + +static void intel_atomic_helper_free_state(struct drm_i915_private *dev_priv) +{ + struct intel_atomic_state *state, *next; + struct llist_node *freed; + + freed = llist_del_all(&dev_priv->display.atomic_helper.free_list); + llist_for_each_entry_safe(state, next, freed, freed) + drm_atomic_state_put(&state->base); +} + +void intel_atomic_helper_free_state_worker(struct work_struct *work) +{ + struct drm_i915_private *dev_priv = + container_of(work, typeof(*dev_priv), display.atomic_helper.free_work); + + intel_atomic_helper_free_state(dev_priv); +} + +static void intel_atomic_commit_fence_wait(struct intel_atomic_state *intel_state) +{ + struct wait_queue_entry wait_fence, wait_reset; + struct drm_i915_private *dev_priv = to_i915(intel_state->base.dev); + + init_wait_entry(&wait_fence, 0); + init_wait_entry(&wait_reset, 0); + for (;;) { + prepare_to_wait(&intel_state->commit_ready.wait, + &wait_fence, TASK_UNINTERRUPTIBLE); + prepare_to_wait(bit_waitqueue(&to_gt(dev_priv)->reset.flags, + I915_RESET_MODESET), + &wait_reset, TASK_UNINTERRUPTIBLE); + + + if (i915_sw_fence_done(&intel_state->commit_ready) || + test_bit(I915_RESET_MODESET, &to_gt(dev_priv)->reset.flags)) + break; + + schedule(); + } + finish_wait(&intel_state->commit_ready.wait, &wait_fence); + finish_wait(bit_waitqueue(&to_gt(dev_priv)->reset.flags, + I915_RESET_MODESET), + &wait_reset); +} + +static void intel_atomic_cleanup_work(struct work_struct *work) +{ + struct intel_atomic_state *state = + container_of(work, struct intel_atomic_state, base.commit_work); + struct drm_i915_private *i915 = to_i915(state->base.dev); + struct intel_crtc_state *old_crtc_state; + struct intel_crtc *crtc; + int i; + + for_each_old_intel_crtc_in_state(state, crtc, old_crtc_state, i) + intel_color_cleanup_commit(old_crtc_state); + + drm_atomic_helper_cleanup_planes(&i915->drm, &state->base); + drm_atomic_helper_commit_cleanup_done(&state->base); + drm_atomic_state_put(&state->base); + + intel_atomic_helper_free_state(i915); +} + +static void intel_atomic_prepare_plane_clear_colors(struct intel_atomic_state *state) +{ + struct drm_i915_private *i915 = to_i915(state->base.dev); + struct intel_plane *plane; + struct intel_plane_state *plane_state; + int i; + + for_each_new_intel_plane_in_state(state, plane, plane_state, i) { + struct drm_framebuffer *fb = plane_state->hw.fb; + int cc_plane; + int ret; + + if (!fb) + continue; + + cc_plane = intel_fb_rc_ccs_cc_plane(fb); + if (cc_plane < 0) + continue; + + /* + * The layout of the fast clear color value expected by HW + * (the DRM ABI requiring this value to be located in fb at + * offset 0 of cc plane, plane #2 previous generations or + * plane #1 for flat ccs): + * - 4 x 4 bytes per-channel value + * (in surface type specific float/int format provided by the fb user) + * - 8 bytes native color value used by the display + * (converted/written by GPU during a fast clear operation using the + * above per-channel values) + * + * The commit's FB prepare hook already ensured that FB obj is pinned and the + * caller made sure that the object is synced wrt. the related color clear value + * GPU write on it. + */ + ret = i915_gem_object_read_from_page(intel_fb_obj(fb), + fb->offsets[cc_plane] + 16, + &plane_state->ccval, + sizeof(plane_state->ccval)); + /* The above could only fail if the FB obj has an unexpected backing store type. */ + drm_WARN_ON(&i915->drm, ret); + } +} + +static void intel_atomic_commit_tail(struct intel_atomic_state *state) +{ + struct drm_device *dev = state->base.dev; + struct drm_i915_private *dev_priv = to_i915(dev); + struct intel_crtc_state *new_crtc_state, *old_crtc_state; + struct intel_crtc *crtc; + struct intel_power_domain_mask put_domains[I915_MAX_PIPES] = {}; + intel_wakeref_t wakeref = 0; + int i; + + intel_atomic_commit_fence_wait(state); + + drm_atomic_helper_wait_for_dependencies(&state->base); + drm_dp_mst_atomic_wait_for_dependencies(&state->base); + + /* + * During full modesets we write a lot of registers, wait + * for PLLs, etc. Doing that while DC states are enabled + * is not a good idea. + * + * During fastsets and other updates we also need to + * disable DC states due to the following scenario: + * 1. DC5 exit and PSR exit happen + * 2. Some or all _noarm() registers are written + * 3. Due to some long delay PSR is re-entered + * 4. DC5 entry -> DMC saves the already written new + * _noarm() registers and the old not yet written + * _arm() registers + * 5. DC5 exit -> DMC restores a mixture of old and + * new register values and arms the update + * 6. PSR exit -> hardware latches a mixture of old and + * new register values -> corrupted frame, or worse + * 7. New _arm() registers are finally written + * 8. Hardware finally latches a complete set of new + * register values, and subsequent frames will be OK again + * + * Also note that due to the pipe CSC hardware issues on + * SKL/GLK DC states must remain off until the pipe CSC + * state readout has happened. Otherwise we risk corrupting + * the CSC latched register values with the readout (see + * skl_read_csc() and skl_color_commit_noarm()). + */ + wakeref = intel_display_power_get(dev_priv, POWER_DOMAIN_DC_OFF); + + intel_atomic_prepare_plane_clear_colors(state); + + for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state, + new_crtc_state, i) { + if (intel_crtc_needs_modeset(new_crtc_state) || + intel_crtc_needs_fastset(new_crtc_state)) + intel_modeset_get_crtc_power_domains(new_crtc_state, &put_domains[crtc->pipe]); + } + + intel_commit_modeset_disables(state); + + /* FIXME: Eventually get rid of our crtc->config pointer */ + for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i) + crtc->config = new_crtc_state; + + /* + * In XE_LPD+ Pmdemand combines many parameters such as voltage index, + * plls, cdclk frequency, QGV point selection parameter etc. Voltage + * index, cdclk/ddiclk frequencies are supposed to be configured before + * the cdclk config is set. + */ + intel_pmdemand_pre_plane_update(state); + + if (state->modeset) { + drm_atomic_helper_update_legacy_modeset_state(dev, &state->base); + + intel_set_cdclk_pre_plane_update(state); + + intel_modeset_verify_disabled(dev_priv, state); + } + + intel_sagv_pre_plane_update(state); + + /* Complete the events for pipes that have now been disabled */ + for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i) { + bool modeset = intel_crtc_needs_modeset(new_crtc_state); + + /* Complete events for now disable pipes here. */ + if (modeset && !new_crtc_state->hw.active && new_crtc_state->uapi.event) { + spin_lock_irq(&dev->event_lock); + drm_crtc_send_vblank_event(&crtc->base, + new_crtc_state->uapi.event); + spin_unlock_irq(&dev->event_lock); + + new_crtc_state->uapi.event = NULL; + } + } + + intel_encoders_update_prepare(state); + + intel_dbuf_pre_plane_update(state); + intel_mbus_dbox_update(state); + + for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i) { + if (new_crtc_state->do_async_flip) + intel_crtc_enable_flip_done(state, crtc); + } + + /* Now enable the clocks, plane, pipe, and connectors that we set up. */ + dev_priv->display.funcs.display->commit_modeset_enables(state); + + if (state->modeset) + intel_set_cdclk_post_plane_update(state); + + intel_wait_for_vblank_workers(state); + + /* FIXME: We should call drm_atomic_helper_commit_hw_done() here + * already, but still need the state for the delayed optimization. To + * fix this: + * - wrap the optimization/post_plane_update stuff into a per-crtc work. + * - schedule that vblank worker _before_ calling hw_done + * - at the start of commit_tail, cancel it _synchrously + * - switch over to the vblank wait helper in the core after that since + * we don't need out special handling any more. + */ + drm_atomic_helper_wait_for_flip_done(dev, &state->base); + + for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i) { + if (new_crtc_state->do_async_flip) + intel_crtc_disable_flip_done(state, crtc); + } + + /* + * Now that the vblank has passed, we can go ahead and program the + * optimal watermarks on platforms that need two-step watermark + * programming. + * + * TODO: Move this (and other cleanup) to an async worker eventually. + */ + for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state, + new_crtc_state, i) { + /* + * Gen2 reports pipe underruns whenever all planes are disabled. + * So re-enable underrun reporting after some planes get enabled. + * + * We do this before .optimize_watermarks() so that we have a + * chance of catching underruns with the intermediate watermarks + * vs. the new plane configuration. + */ + if (DISPLAY_VER(dev_priv) == 2 && planes_enabling(old_crtc_state, new_crtc_state)) + intel_set_cpu_fifo_underrun_reporting(dev_priv, crtc->pipe, true); + + intel_optimize_watermarks(state, crtc); + } + + intel_dbuf_post_plane_update(state); + intel_psr_post_plane_update(state); + + for_each_oldnew_intel_crtc_in_state(state, crtc, old_crtc_state, new_crtc_state, i) { + intel_post_plane_update(state, crtc); + + intel_modeset_put_crtc_power_domains(crtc, &put_domains[crtc->pipe]); + + intel_modeset_verify_crtc(crtc, state, old_crtc_state, new_crtc_state); + + /* Must be done after gamma readout due to HSW split gamma vs. IPS w/a */ + hsw_ips_post_update(state, crtc); + + /* + * Activate DRRS after state readout to avoid + * dp_m_n vs. dp_m2_n2 confusion on BDW+. + */ + intel_drrs_activate(new_crtc_state); + + /* + * DSB cleanup is done in cleanup_work aligning with framebuffer + * cleanup. So copy and reset the dsb structure to sync with + * commit_done and later do dsb cleanup in cleanup_work. + * + * FIXME get rid of this funny new->old swapping + */ + old_crtc_state->dsb = fetch_and_zero(&new_crtc_state->dsb); + } + + /* Underruns don't always raise interrupts, so check manually */ + intel_check_cpu_fifo_underruns(dev_priv); + intel_check_pch_fifo_underruns(dev_priv); + + if (state->modeset) + intel_verify_planes(state); + + intel_sagv_post_plane_update(state); + intel_pmdemand_post_plane_update(state); + + drm_atomic_helper_commit_hw_done(&state->base); + + if (state->modeset) { + /* As one of the primary mmio accessors, KMS has a high + * likelihood of triggering bugs in unclaimed access. After we + * finish modesetting, see if an error has been flagged, and if + * so enable debugging for the next modeset - and hope we catch + * the culprit. + */ + intel_uncore_arm_unclaimed_mmio_detection(&dev_priv->uncore); + } + /* + * Delay re-enabling DC states by 17 ms to avoid the off->on->off + * toggling overhead at and above 60 FPS. + */ + intel_display_power_put_async_delay(dev_priv, POWER_DOMAIN_DC_OFF, wakeref, 17); + intel_runtime_pm_put(&dev_priv->runtime_pm, state->wakeref); + + /* + * Defer the cleanup of the old state to a separate worker to not + * impede the current task (userspace for blocking modesets) that + * are executed inline. For out-of-line asynchronous modesets/flips, + * deferring to a new worker seems overkill, but we would place a + * schedule point (cond_resched()) here anyway to keep latencies + * down. + */ + INIT_WORK(&state->base.commit_work, intel_atomic_cleanup_work); + queue_work(system_highpri_wq, &state->base.commit_work); +} + +static void intel_atomic_commit_work(struct work_struct *work) +{ + struct intel_atomic_state *state = + container_of(work, struct intel_atomic_state, base.commit_work); + + intel_atomic_commit_tail(state); +} + +static int +intel_atomic_commit_ready(struct i915_sw_fence *fence, + enum i915_sw_fence_notify notify) +{ + struct intel_atomic_state *state = + container_of(fence, struct intel_atomic_state, commit_ready); + + switch (notify) { + case FENCE_COMPLETE: + /* we do blocking waits in the worker, nothing to do here */ + break; + case FENCE_FREE: + { + struct drm_i915_private *i915 = to_i915(state->base.dev); + struct intel_atomic_helper *helper = + &i915->display.atomic_helper; + + if (llist_add(&state->freed, &helper->free_list)) + queue_work(i915->unordered_wq, &helper->free_work); + break; + } + } + + return NOTIFY_DONE; +} + +static void intel_atomic_track_fbs(struct intel_atomic_state *state) +{ + struct intel_plane_state *old_plane_state, *new_plane_state; + struct intel_plane *plane; + int i; + + for_each_oldnew_intel_plane_in_state(state, plane, old_plane_state, + new_plane_state, i) + intel_frontbuffer_track(to_intel_frontbuffer(old_plane_state->hw.fb), + to_intel_frontbuffer(new_plane_state->hw.fb), + plane->frontbuffer_bit); +} + +int intel_atomic_commit(struct drm_device *dev, struct drm_atomic_state *_state, + bool nonblock) +{ + struct intel_atomic_state *state = to_intel_atomic_state(_state); + struct drm_i915_private *dev_priv = to_i915(dev); + int ret = 0; + + state->wakeref = intel_runtime_pm_get(&dev_priv->runtime_pm); + + drm_atomic_state_get(&state->base); + i915_sw_fence_init(&state->commit_ready, + intel_atomic_commit_ready); + + /* + * The intel_legacy_cursor_update() fast path takes care + * of avoiding the vblank waits for simple cursor + * movement and flips. For cursor on/off and size changes, + * we want to perform the vblank waits so that watermark + * updates happen during the correct frames. Gen9+ have + * double buffered watermarks and so shouldn't need this. + * + * Unset state->legacy_cursor_update before the call to + * drm_atomic_helper_setup_commit() because otherwise + * drm_atomic_helper_wait_for_flip_done() is a noop and + * we get FIFO underruns because we didn't wait + * for vblank. + * + * FIXME doing watermarks and fb cleanup from a vblank worker + * (assuming we had any) would solve these problems. + */ + if (DISPLAY_VER(dev_priv) < 9 && state->base.legacy_cursor_update) { + struct intel_crtc_state *new_crtc_state; + struct intel_crtc *crtc; + int i; + + for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i) + if (new_crtc_state->wm.need_postvbl_update || + new_crtc_state->update_wm_post) + state->base.legacy_cursor_update = false; + } + + ret = intel_atomic_prepare_commit(state); + if (ret) { + drm_dbg_atomic(&dev_priv->drm, + "Preparing state failed with %i\n", ret); + i915_sw_fence_commit(&state->commit_ready); + intel_runtime_pm_put(&dev_priv->runtime_pm, state->wakeref); + return ret; + } + + ret = drm_atomic_helper_setup_commit(&state->base, nonblock); + if (!ret) + ret = drm_atomic_helper_swap_state(&state->base, true); + if (!ret) + intel_atomic_swap_global_state(state); + + if (ret) { + struct intel_crtc_state *new_crtc_state; + struct intel_crtc *crtc; + int i; + + i915_sw_fence_commit(&state->commit_ready); + + for_each_new_intel_crtc_in_state(state, crtc, new_crtc_state, i) + intel_color_cleanup_commit(new_crtc_state); + + drm_atomic_helper_unprepare_planes(dev, &state->base); + intel_runtime_pm_put(&dev_priv->runtime_pm, state->wakeref); + return ret; + } + intel_shared_dpll_swap_state(state); + intel_atomic_track_fbs(state); + + drm_atomic_state_get(&state->base); + INIT_WORK(&state->base.commit_work, intel_atomic_commit_work); + + i915_sw_fence_commit(&state->commit_ready); + if (nonblock && state->modeset) { + queue_work(dev_priv->display.wq.modeset, &state->base.commit_work); + } else if (nonblock) { + queue_work(dev_priv->display.wq.flip, &state->base.commit_work); + } else { + if (state->modeset) + flush_workqueue(dev_priv->display.wq.modeset); + intel_atomic_commit_tail(state); + } + + return 0; +} + +/** + * intel_plane_destroy - destroy a plane + * @plane: plane to destroy + * + * Common destruction function for all types of planes (primary, cursor, + * sprite). + */ +void intel_plane_destroy(struct drm_plane *plane) +{ + drm_plane_cleanup(plane); + kfree(to_intel_plane(plane)); +} + +int intel_get_pipe_from_crtc_id_ioctl(struct drm_device *dev, void *data, + struct drm_file *file) +{ + struct drm_i915_get_pipe_from_crtc_id *pipe_from_crtc_id = data; + struct drm_crtc *drmmode_crtc; + struct intel_crtc *crtc; + + drmmode_crtc = drm_crtc_find(dev, file, pipe_from_crtc_id->crtc_id); + if (!drmmode_crtc) + return -ENOENT; + + crtc = to_intel_crtc(drmmode_crtc); + pipe_from_crtc_id->pipe = crtc->pipe; + + return 0; +} + +static u32 intel_encoder_possible_clones(struct intel_encoder *encoder) +{ + struct drm_device *dev = encoder->base.dev; + struct intel_encoder *source_encoder; + u32 possible_clones = 0; + + for_each_intel_encoder(dev, source_encoder) { + if (encoders_cloneable(encoder, source_encoder)) + possible_clones |= drm_encoder_mask(&source_encoder->base); + } + + return possible_clones; +} + +static u32 intel_encoder_possible_crtcs(struct intel_encoder *encoder) +{ + struct drm_device *dev = encoder->base.dev; + struct intel_crtc *crtc; + u32 possible_crtcs = 0; + + for_each_intel_crtc_in_pipe_mask(dev, crtc, encoder->pipe_mask) + possible_crtcs |= drm_crtc_mask(&crtc->base); + + return possible_crtcs; +} + +static bool ilk_has_edp_a(struct drm_i915_private *dev_priv) +{ + if (!IS_MOBILE(dev_priv)) + return false; + + if ((intel_de_read(dev_priv, DP_A) & DP_DETECTED) == 0) + return false; + + if (IS_IRONLAKE(dev_priv) && (intel_de_read(dev_priv, FUSE_STRAP) & ILK_eDP_A_DISABLE)) + return false; + + return true; +} + +static bool intel_ddi_crt_present(struct drm_i915_private *dev_priv) +{ + if (DISPLAY_VER(dev_priv) >= 9) + return false; + + if (IS_HASWELL_ULT(dev_priv) || IS_BROADWELL_ULT(dev_priv)) + return false; + + if (HAS_PCH_LPT_H(dev_priv) && + intel_de_read(dev_priv, SFUSE_STRAP) & SFUSE_STRAP_CRT_DISABLED) + return false; + + /* DDI E can't be used if DDI A requires 4 lanes */ + if (intel_de_read(dev_priv, DDI_BUF_CTL(PORT_A)) & DDI_A_4_LANES) + return false; + + if (!dev_priv->display.vbt.int_crt_support) + return false; + + return true; +} + +bool assert_port_valid(struct drm_i915_private *i915, enum port port) +{ + return !drm_WARN(&i915->drm, !(DISPLAY_RUNTIME_INFO(i915)->port_mask & BIT(port)), + "Platform does not support port %c\n", port_name(port)); +} + +void intel_setup_outputs(struct drm_i915_private *dev_priv) +{ + struct intel_encoder *encoder; + bool dpd_is_edp = false; + + intel_pps_unlock_regs_wa(dev_priv); + + if (!HAS_DISPLAY(dev_priv)) + return; + + if (HAS_DDI(dev_priv)) { + if (intel_ddi_crt_present(dev_priv)) + intel_crt_init(dev_priv); + + intel_bios_for_each_encoder(dev_priv, intel_ddi_init); + + if (IS_GEMINILAKE(dev_priv) || IS_BROXTON(dev_priv)) + vlv_dsi_init(dev_priv); + } else if (HAS_PCH_SPLIT(dev_priv)) { + int found; + + /* + * intel_edp_init_connector() depends on this completing first, + * to prevent the registration of both eDP and LVDS and the + * incorrect sharing of the PPS. + */ + intel_lvds_init(dev_priv); + intel_crt_init(dev_priv); + + dpd_is_edp = intel_dp_is_port_edp(dev_priv, PORT_D); + + if (ilk_has_edp_a(dev_priv)) + g4x_dp_init(dev_priv, DP_A, PORT_A); + + if (intel_de_read(dev_priv, PCH_HDMIB) & SDVO_DETECTED) { + /* PCH SDVOB multiplex with HDMIB */ + found = intel_sdvo_init(dev_priv, PCH_SDVOB, PORT_B); + if (!found) + g4x_hdmi_init(dev_priv, PCH_HDMIB, PORT_B); + if (!found && (intel_de_read(dev_priv, PCH_DP_B) & DP_DETECTED)) + g4x_dp_init(dev_priv, PCH_DP_B, PORT_B); + } + + if (intel_de_read(dev_priv, PCH_HDMIC) & SDVO_DETECTED) + g4x_hdmi_init(dev_priv, PCH_HDMIC, PORT_C); + + if (!dpd_is_edp && intel_de_read(dev_priv, PCH_HDMID) & SDVO_DETECTED) + g4x_hdmi_init(dev_priv, PCH_HDMID, PORT_D); + + if (intel_de_read(dev_priv, PCH_DP_C) & DP_DETECTED) + g4x_dp_init(dev_priv, PCH_DP_C, PORT_C); + + if (intel_de_read(dev_priv, PCH_DP_D) & DP_DETECTED) + g4x_dp_init(dev_priv, PCH_DP_D, PORT_D); + } else if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) { + bool has_edp, has_port; + + if (IS_VALLEYVIEW(dev_priv) && dev_priv->display.vbt.int_crt_support) + intel_crt_init(dev_priv); + + /* + * The DP_DETECTED bit is the latched state of the DDC + * SDA pin at boot. However since eDP doesn't require DDC + * (no way to plug in a DP->HDMI dongle) the DDC pins for + * eDP ports may have been muxed to an alternate function. + * Thus we can't rely on the DP_DETECTED bit alone to detect + * eDP ports. Consult the VBT as well as DP_DETECTED to + * detect eDP ports. + * + * Sadly the straps seem to be missing sometimes even for HDMI + * ports (eg. on Voyo V3 - CHT x7-Z8700), so check both strap + * and VBT for the presence of the port. Additionally we can't + * trust the port type the VBT declares as we've seen at least + * HDMI ports that the VBT claim are DP or eDP. + */ + has_edp = intel_dp_is_port_edp(dev_priv, PORT_B); + has_port = intel_bios_is_port_present(dev_priv, PORT_B); + if (intel_de_read(dev_priv, VLV_DP_B) & DP_DETECTED || has_port) + has_edp &= g4x_dp_init(dev_priv, VLV_DP_B, PORT_B); + if ((intel_de_read(dev_priv, VLV_HDMIB) & SDVO_DETECTED || has_port) && !has_edp) + g4x_hdmi_init(dev_priv, VLV_HDMIB, PORT_B); + + has_edp = intel_dp_is_port_edp(dev_priv, PORT_C); + has_port = intel_bios_is_port_present(dev_priv, PORT_C); + if (intel_de_read(dev_priv, VLV_DP_C) & DP_DETECTED || has_port) + has_edp &= g4x_dp_init(dev_priv, VLV_DP_C, PORT_C); + if ((intel_de_read(dev_priv, VLV_HDMIC) & SDVO_DETECTED || has_port) && !has_edp) + g4x_hdmi_init(dev_priv, VLV_HDMIC, PORT_C); + + if (IS_CHERRYVIEW(dev_priv)) { + /* + * eDP not supported on port D, + * so no need to worry about it + */ + has_port = intel_bios_is_port_present(dev_priv, PORT_D); + if (intel_de_read(dev_priv, CHV_DP_D) & DP_DETECTED || has_port) + g4x_dp_init(dev_priv, CHV_DP_D, PORT_D); + if (intel_de_read(dev_priv, CHV_HDMID) & SDVO_DETECTED || has_port) + g4x_hdmi_init(dev_priv, CHV_HDMID, PORT_D); + } + + vlv_dsi_init(dev_priv); + } else if (IS_PINEVIEW(dev_priv)) { + intel_lvds_init(dev_priv); + intel_crt_init(dev_priv); + } else if (IS_DISPLAY_VER(dev_priv, 3, 4)) { + bool found = false; + + if (IS_MOBILE(dev_priv)) + intel_lvds_init(dev_priv); + + intel_crt_init(dev_priv); + + if (intel_de_read(dev_priv, GEN3_SDVOB) & SDVO_DETECTED) { + drm_dbg_kms(&dev_priv->drm, "probing SDVOB\n"); + found = intel_sdvo_init(dev_priv, GEN3_SDVOB, PORT_B); + if (!found && IS_G4X(dev_priv)) { + drm_dbg_kms(&dev_priv->drm, + "probing HDMI on SDVOB\n"); + g4x_hdmi_init(dev_priv, GEN4_HDMIB, PORT_B); + } + + if (!found && IS_G4X(dev_priv)) + g4x_dp_init(dev_priv, DP_B, PORT_B); + } + + /* Before G4X SDVOC doesn't have its own detect register */ + + if (intel_de_read(dev_priv, GEN3_SDVOB) & SDVO_DETECTED) { + drm_dbg_kms(&dev_priv->drm, "probing SDVOC\n"); + found = intel_sdvo_init(dev_priv, GEN3_SDVOC, PORT_C); + } + + if (!found && (intel_de_read(dev_priv, GEN3_SDVOC) & SDVO_DETECTED)) { + + if (IS_G4X(dev_priv)) { + drm_dbg_kms(&dev_priv->drm, + "probing HDMI on SDVOC\n"); + g4x_hdmi_init(dev_priv, GEN4_HDMIC, PORT_C); + } + if (IS_G4X(dev_priv)) + g4x_dp_init(dev_priv, DP_C, PORT_C); + } + + if (IS_G4X(dev_priv) && (intel_de_read(dev_priv, DP_D) & DP_DETECTED)) + g4x_dp_init(dev_priv, DP_D, PORT_D); + + if (SUPPORTS_TV(dev_priv)) + intel_tv_init(dev_priv); + } else if (DISPLAY_VER(dev_priv) == 2) { + if (IS_I85X(dev_priv)) + intel_lvds_init(dev_priv); + + intel_crt_init(dev_priv); + intel_dvo_init(dev_priv); + } + + for_each_intel_encoder(&dev_priv->drm, encoder) { + encoder->base.possible_crtcs = + intel_encoder_possible_crtcs(encoder); + encoder->base.possible_clones = + intel_encoder_possible_clones(encoder); + } + + intel_init_pch_refclk(dev_priv); + + drm_helper_move_panel_connectors_to_head(&dev_priv->drm); +} + +static int max_dotclock(struct drm_i915_private *i915) +{ + int max_dotclock = i915->max_dotclk_freq; + + /* icl+ might use bigjoiner */ + if (DISPLAY_VER(i915) >= 11) + max_dotclock *= 2; + + return max_dotclock; +} + +enum drm_mode_status intel_mode_valid(struct drm_device *dev, + const struct drm_display_mode *mode) +{ + struct drm_i915_private *dev_priv = to_i915(dev); + int hdisplay_max, htotal_max; + int vdisplay_max, vtotal_max; + + /* + * Can't reject DBLSCAN here because Xorg ddxen can add piles + * of DBLSCAN modes to the output's mode list when they detect + * the scaling mode property on the connector. And they don't + * ask the kernel to validate those modes in any way until + * modeset time at which point the client gets a protocol error. + * So in order to not upset those clients we silently ignore the + * DBLSCAN flag on such connectors. For other connectors we will + * reject modes with the DBLSCAN flag in encoder->compute_config(). + * And we always reject DBLSCAN modes in connector->mode_valid() + * as we never want such modes on the connector's mode list. + */ + + if (mode->vscan > 1) + return MODE_NO_VSCAN; + + if (mode->flags & DRM_MODE_FLAG_HSKEW) + return MODE_H_ILLEGAL; + + if (mode->flags & (DRM_MODE_FLAG_CSYNC | + DRM_MODE_FLAG_NCSYNC | + DRM_MODE_FLAG_PCSYNC)) + return MODE_HSYNC; + + if (mode->flags & (DRM_MODE_FLAG_BCAST | + DRM_MODE_FLAG_PIXMUX | + DRM_MODE_FLAG_CLKDIV2)) + return MODE_BAD; + + /* + * Reject clearly excessive dotclocks early to + * avoid having to worry about huge integers later. + */ + if (mode->clock > max_dotclock(dev_priv)) + return MODE_CLOCK_HIGH; + + /* Transcoder timing limits */ + if (DISPLAY_VER(dev_priv) >= 11) { + hdisplay_max = 16384; + vdisplay_max = 8192; + htotal_max = 16384; + vtotal_max = 8192; + } else if (DISPLAY_VER(dev_priv) >= 9 || + IS_BROADWELL(dev_priv) || IS_HASWELL(dev_priv)) { + hdisplay_max = 8192; /* FDI max 4096 handled elsewhere */ + vdisplay_max = 4096; + htotal_max = 8192; + vtotal_max = 8192; + } else if (DISPLAY_VER(dev_priv) >= 3) { + hdisplay_max = 4096; + vdisplay_max = 4096; + htotal_max = 8192; + vtotal_max = 8192; + } else { + hdisplay_max = 2048; + vdisplay_max = 2048; + htotal_max = 4096; + vtotal_max = 4096; + } + + if (mode->hdisplay > hdisplay_max || + mode->hsync_start > htotal_max || + mode->hsync_end > htotal_max || + mode->htotal > htotal_max) + return MODE_H_ILLEGAL; + + if (mode->vdisplay > vdisplay_max || + mode->vsync_start > vtotal_max || + mode->vsync_end > vtotal_max || + mode->vtotal > vtotal_max) + return MODE_V_ILLEGAL; + + return MODE_OK; +} + +enum drm_mode_status intel_cpu_transcoder_mode_valid(struct drm_i915_private *dev_priv, + const struct drm_display_mode *mode) +{ + /* + * Additional transcoder timing limits, + * excluding BXT/GLK DSI transcoders. + */ + if (DISPLAY_VER(dev_priv) >= 5) { + if (mode->hdisplay < 64 || + mode->htotal - mode->hdisplay < 32) + return MODE_H_ILLEGAL; + + if (mode->vtotal - mode->vdisplay < 5) + return MODE_V_ILLEGAL; + } else { + if (mode->htotal - mode->hdisplay < 32) + return MODE_H_ILLEGAL; + + if (mode->vtotal - mode->vdisplay < 3) + return MODE_V_ILLEGAL; + } + + /* + * Cantiga+ cannot handle modes with a hsync front porch of 0. + * WaPruneModeWithIncorrectHsyncOffset:ctg,elk,ilk,snb,ivb,vlv,hsw. + */ + if ((DISPLAY_VER(dev_priv) > 4 || IS_G4X(dev_priv)) && + mode->hsync_start == mode->hdisplay) + return MODE_H_ILLEGAL; + + return MODE_OK; +} + +enum drm_mode_status +intel_mode_valid_max_plane_size(struct drm_i915_private *dev_priv, + const struct drm_display_mode *mode, + bool bigjoiner) +{ + int plane_width_max, plane_height_max; + + /* + * intel_mode_valid() should be + * sufficient on older platforms. + */ + if (DISPLAY_VER(dev_priv) < 9) + return MODE_OK; + + /* + * Most people will probably want a fullscreen + * plane so let's not advertize modes that are + * too big for that. + */ + if (DISPLAY_VER(dev_priv) >= 11) { + plane_width_max = 5120 << bigjoiner; + plane_height_max = 4320; + } else { + plane_width_max = 5120; + plane_height_max = 4096; + } + + if (mode->hdisplay > plane_width_max) + return MODE_H_ILLEGAL; + + if (mode->vdisplay > plane_height_max) + return MODE_V_ILLEGAL; + + return MODE_OK; +} + +static const struct intel_display_funcs skl_display_funcs = { + .get_pipe_config = hsw_get_pipe_config, + .crtc_enable = hsw_crtc_enable, + .crtc_disable = hsw_crtc_disable, + .commit_modeset_enables = skl_commit_modeset_enables, + .get_initial_plane_config = skl_get_initial_plane_config, +}; + +static const struct intel_display_funcs ddi_display_funcs = { + .get_pipe_config = hsw_get_pipe_config, + .crtc_enable = hsw_crtc_enable, + .crtc_disable = hsw_crtc_disable, + .commit_modeset_enables = intel_commit_modeset_enables, + .get_initial_plane_config = i9xx_get_initial_plane_config, +}; + +static const struct intel_display_funcs pch_split_display_funcs = { + .get_pipe_config = ilk_get_pipe_config, + .crtc_enable = ilk_crtc_enable, + .crtc_disable = ilk_crtc_disable, + .commit_modeset_enables = intel_commit_modeset_enables, + .get_initial_plane_config = i9xx_get_initial_plane_config, +}; + +static const struct intel_display_funcs vlv_display_funcs = { + .get_pipe_config = i9xx_get_pipe_config, + .crtc_enable = valleyview_crtc_enable, + .crtc_disable = i9xx_crtc_disable, + .commit_modeset_enables = intel_commit_modeset_enables, + .get_initial_plane_config = i9xx_get_initial_plane_config, +}; + +static const struct intel_display_funcs i9xx_display_funcs = { + .get_pipe_config = i9xx_get_pipe_config, + .crtc_enable = i9xx_crtc_enable, + .crtc_disable = i9xx_crtc_disable, + .commit_modeset_enables = intel_commit_modeset_enables, + .get_initial_plane_config = i9xx_get_initial_plane_config, +}; + +/** + * intel_init_display_hooks - initialize the display modesetting hooks + * @dev_priv: device private + */ +void intel_init_display_hooks(struct drm_i915_private *dev_priv) +{ + if (DISPLAY_VER(dev_priv) >= 9) { + dev_priv->display.funcs.display = &skl_display_funcs; + } else if (HAS_DDI(dev_priv)) { + dev_priv->display.funcs.display = &ddi_display_funcs; + } else if (HAS_PCH_SPLIT(dev_priv)) { + dev_priv->display.funcs.display = &pch_split_display_funcs; + } else if (IS_CHERRYVIEW(dev_priv) || + IS_VALLEYVIEW(dev_priv)) { + dev_priv->display.funcs.display = &vlv_display_funcs; + } else { + dev_priv->display.funcs.display = &i9xx_display_funcs; + } +} + +int intel_initial_commit(struct drm_device *dev) +{ + struct drm_atomic_state *state = NULL; + struct drm_modeset_acquire_ctx ctx; + struct intel_crtc *crtc; + int ret = 0; + + state = drm_atomic_state_alloc(dev); + if (!state) + return -ENOMEM; + + drm_modeset_acquire_init(&ctx, 0); + + state->acquire_ctx = &ctx; + to_intel_atomic_state(state)->internal = true; + +retry: + for_each_intel_crtc(dev, crtc) { + struct intel_crtc_state *crtc_state = + intel_atomic_get_crtc_state(state, crtc); + + if (IS_ERR(crtc_state)) { + ret = PTR_ERR(crtc_state); + goto out; + } + + if (crtc_state->hw.active) { + struct intel_encoder *encoder; + + ret = drm_atomic_add_affected_planes(state, &crtc->base); + if (ret) + goto out; + + /* + * FIXME hack to force a LUT update to avoid the + * plane update forcing the pipe gamma on without + * having a proper LUT loaded. Remove once we + * have readout for pipe gamma enable. + */ + crtc_state->uapi.color_mgmt_changed = true; + + for_each_intel_encoder_mask(dev, encoder, + crtc_state->uapi.encoder_mask) { + if (encoder->initial_fastset_check && + !encoder->initial_fastset_check(encoder, crtc_state)) { + ret = drm_atomic_add_affected_connectors(state, + &crtc->base); + if (ret) + goto out; + } + } + } + } + + ret = drm_atomic_commit(state); + +out: + if (ret == -EDEADLK) { + drm_atomic_state_clear(state); + drm_modeset_backoff(&ctx); + goto retry; + } + + drm_atomic_state_put(state); + + drm_modeset_drop_locks(&ctx); + drm_modeset_acquire_fini(&ctx); + + return ret; +} + +void i830_enable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe) +{ + struct intel_crtc *crtc = intel_crtc_for_pipe(dev_priv, pipe); + enum transcoder cpu_transcoder = (enum transcoder)pipe; + /* 640x480@60Hz, ~25175 kHz */ + struct dpll clock = { + .m1 = 18, + .m2 = 7, + .p1 = 13, + .p2 = 4, + .n = 2, + }; + u32 dpll, fp; + int i; + + drm_WARN_ON(&dev_priv->drm, + i9xx_calc_dpll_params(48000, &clock) != 25154); + + drm_dbg_kms(&dev_priv->drm, + "enabling pipe %c due to force quirk (vco=%d dot=%d)\n", + pipe_name(pipe), clock.vco, clock.dot); + + fp = i9xx_dpll_compute_fp(&clock); + dpll = DPLL_DVO_2X_MODE | + DPLL_VGA_MODE_DIS | + ((clock.p1 - 2) << DPLL_FPA01_P1_POST_DIV_SHIFT) | + PLL_P2_DIVIDE_BY_4 | + PLL_REF_INPUT_DREFCLK | + DPLL_VCO_ENABLE; + + intel_de_write(dev_priv, TRANS_HTOTAL(cpu_transcoder), + HACTIVE(640 - 1) | HTOTAL(800 - 1)); + intel_de_write(dev_priv, TRANS_HBLANK(cpu_transcoder), + HBLANK_START(640 - 1) | HBLANK_END(800 - 1)); + intel_de_write(dev_priv, TRANS_HSYNC(cpu_transcoder), + HSYNC_START(656 - 1) | HSYNC_END(752 - 1)); + intel_de_write(dev_priv, TRANS_VTOTAL(cpu_transcoder), + VACTIVE(480 - 1) | VTOTAL(525 - 1)); + intel_de_write(dev_priv, TRANS_VBLANK(cpu_transcoder), + VBLANK_START(480 - 1) | VBLANK_END(525 - 1)); + intel_de_write(dev_priv, TRANS_VSYNC(cpu_transcoder), + VSYNC_START(490 - 1) | VSYNC_END(492 - 1)); + intel_de_write(dev_priv, PIPESRC(pipe), + PIPESRC_WIDTH(640 - 1) | PIPESRC_HEIGHT(480 - 1)); + + intel_de_write(dev_priv, FP0(pipe), fp); + intel_de_write(dev_priv, FP1(pipe), fp); + + /* + * Apparently we need to have VGA mode enabled prior to changing + * the P1/P2 dividers. Otherwise the DPLL will keep using the old + * dividers, even though the register value does change. + */ + intel_de_write(dev_priv, DPLL(pipe), dpll & ~DPLL_VGA_MODE_DIS); + intel_de_write(dev_priv, DPLL(pipe), dpll); + + /* Wait for the clocks to stabilize. */ + intel_de_posting_read(dev_priv, DPLL(pipe)); + udelay(150); + + /* The pixel multiplier can only be updated once the + * DPLL is enabled and the clocks are stable. + * + * So write it again. + */ + intel_de_write(dev_priv, DPLL(pipe), dpll); + + /* We do this three times for luck */ + for (i = 0; i < 3 ; i++) { + intel_de_write(dev_priv, DPLL(pipe), dpll); + intel_de_posting_read(dev_priv, DPLL(pipe)); + udelay(150); /* wait for warmup */ + } + + intel_de_write(dev_priv, TRANSCONF(pipe), TRANSCONF_ENABLE); + intel_de_posting_read(dev_priv, TRANSCONF(pipe)); + + intel_wait_for_pipe_scanline_moving(crtc); +} + +void i830_disable_pipe(struct drm_i915_private *dev_priv, enum pipe pipe) +{ + struct intel_crtc *crtc = intel_crtc_for_pipe(dev_priv, pipe); + + drm_dbg_kms(&dev_priv->drm, "disabling pipe %c due to force quirk\n", + pipe_name(pipe)); + + drm_WARN_ON(&dev_priv->drm, + intel_de_read(dev_priv, DSPCNTR(PLANE_A)) & DISP_ENABLE); + drm_WARN_ON(&dev_priv->drm, + intel_de_read(dev_priv, DSPCNTR(PLANE_B)) & DISP_ENABLE); + drm_WARN_ON(&dev_priv->drm, + intel_de_read(dev_priv, DSPCNTR(PLANE_C)) & DISP_ENABLE); + drm_WARN_ON(&dev_priv->drm, + intel_de_read(dev_priv, CURCNTR(PIPE_A)) & MCURSOR_MODE_MASK); + drm_WARN_ON(&dev_priv->drm, + intel_de_read(dev_priv, CURCNTR(PIPE_B)) & MCURSOR_MODE_MASK); + + intel_de_write(dev_priv, TRANSCONF(pipe), 0); + intel_de_posting_read(dev_priv, TRANSCONF(pipe)); + + intel_wait_for_pipe_scanline_stopped(crtc); + + intel_de_write(dev_priv, DPLL(pipe), DPLL_VGA_MODE_DIS); + intel_de_posting_read(dev_priv, DPLL(pipe)); +} + +void intel_hpd_poll_fini(struct drm_i915_private *i915) +{ + struct intel_connector *connector; + struct drm_connector_list_iter conn_iter; + + /* Kill all the work that may have been queued by hpd. */ + drm_connector_list_iter_begin(&i915->drm, &conn_iter); + for_each_intel_connector_iter(connector, &conn_iter) { + if (connector->modeset_retry_work.func) + cancel_work_sync(&connector->modeset_retry_work); + if (connector->hdcp.shim) { + cancel_delayed_work_sync(&connector->hdcp.check_work); + cancel_work_sync(&connector->hdcp.prop_work); + } + } + drm_connector_list_iter_end(&conn_iter); +} + +bool intel_scanout_needs_vtd_wa(struct drm_i915_private *i915) +{ + return DISPLAY_VER(i915) >= 6 && i915_vtd_active(i915); +} |