diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/gpu/drm/i915/gvt/handlers.c | 3231 |
1 files changed, 3231 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gvt/handlers.c b/drivers/gpu/drm/i915/gvt/handlers.c new file mode 100644 index 000000000..daac2050d --- /dev/null +++ b/drivers/gpu/drm/i915/gvt/handlers.c @@ -0,0 +1,3231 @@ +/* + * Copyright(c) 2011-2016 Intel Corporation. All rights reserved. + * + * 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: + * Kevin Tian <kevin.tian@intel.com> + * Eddie Dong <eddie.dong@intel.com> + * Zhiyuan Lv <zhiyuan.lv@intel.com> + * + * Contributors: + * Min He <min.he@intel.com> + * Tina Zhang <tina.zhang@intel.com> + * Pei Zhang <pei.zhang@intel.com> + * Niu Bing <bing.niu@intel.com> + * Ping Gao <ping.a.gao@intel.com> + * Zhi Wang <zhi.a.wang@intel.com> + * + + */ + +#include "i915_drv.h" +#include "i915_reg.h" +#include "gvt.h" +#include "i915_pvinfo.h" +#include "intel_mchbar_regs.h" +#include "display/intel_display_types.h" +#include "display/intel_dmc_regs.h" +#include "display/intel_fbc.h" +#include "display/vlv_dsi_pll_regs.h" +#include "gt/intel_gt_regs.h" + +/* XXX FIXME i915 has changed PP_XXX definition */ +#define PCH_PP_STATUS _MMIO(0xc7200) +#define PCH_PP_CONTROL _MMIO(0xc7204) +#define PCH_PP_ON_DELAYS _MMIO(0xc7208) +#define PCH_PP_OFF_DELAYS _MMIO(0xc720c) +#define PCH_PP_DIVISOR _MMIO(0xc7210) + +unsigned long intel_gvt_get_device_type(struct intel_gvt *gvt) +{ + struct drm_i915_private *i915 = gvt->gt->i915; + + if (IS_BROADWELL(i915)) + return D_BDW; + else if (IS_SKYLAKE(i915)) + return D_SKL; + else if (IS_KABYLAKE(i915)) + return D_KBL; + else if (IS_BROXTON(i915)) + return D_BXT; + else if (IS_COFFEELAKE(i915) || IS_COMETLAKE(i915)) + return D_CFL; + + return 0; +} + +static bool intel_gvt_match_device(struct intel_gvt *gvt, + unsigned long device) +{ + return intel_gvt_get_device_type(gvt) & device; +} + +static void read_vreg(struct intel_vgpu *vgpu, unsigned int offset, + void *p_data, unsigned int bytes) +{ + memcpy(p_data, &vgpu_vreg(vgpu, offset), bytes); +} + +static void write_vreg(struct intel_vgpu *vgpu, unsigned int offset, + void *p_data, unsigned int bytes) +{ + memcpy(&vgpu_vreg(vgpu, offset), p_data, bytes); +} + +struct intel_gvt_mmio_info *intel_gvt_find_mmio_info(struct intel_gvt *gvt, + unsigned int offset) +{ + struct intel_gvt_mmio_info *e; + + hash_for_each_possible(gvt->mmio.mmio_info_table, e, node, offset) { + if (e->offset == offset) + return e; + } + return NULL; +} + +static int setup_mmio_info(struct intel_gvt *gvt, u32 offset, u32 size, + u16 flags, u32 addr_mask, u32 ro_mask, u32 device, + gvt_mmio_func read, gvt_mmio_func write) +{ + struct intel_gvt_mmio_info *p; + u32 start, end, i; + + if (!intel_gvt_match_device(gvt, device)) + return 0; + + if (WARN_ON(!IS_ALIGNED(offset, 4))) + return -EINVAL; + + start = offset; + end = offset + size; + + for (i = start; i < end; i += 4) { + p = intel_gvt_find_mmio_info(gvt, i); + if (!p) { + WARN(1, "assign a handler to a non-tracked mmio %x\n", + i); + return -ENODEV; + } + p->ro_mask = ro_mask; + gvt->mmio.mmio_attribute[i / 4] = flags; + if (read) + p->read = read; + if (write) + p->write = write; + } + return 0; +} + +/** + * intel_gvt_render_mmio_to_engine - convert a mmio offset into the engine + * @gvt: a GVT device + * @offset: register offset + * + * Returns: + * The engine containing the offset within its mmio page. + */ +const struct intel_engine_cs * +intel_gvt_render_mmio_to_engine(struct intel_gvt *gvt, unsigned int offset) +{ + struct intel_engine_cs *engine; + enum intel_engine_id id; + + offset &= ~GENMASK(11, 0); + for_each_engine(engine, gvt->gt, id) + if (engine->mmio_base == offset) + return engine; + + return NULL; +} + +#define offset_to_fence_num(offset) \ + ((offset - i915_mmio_reg_offset(FENCE_REG_GEN6_LO(0))) >> 3) + +#define fence_num_to_offset(num) \ + (num * 8 + i915_mmio_reg_offset(FENCE_REG_GEN6_LO(0))) + + +void enter_failsafe_mode(struct intel_vgpu *vgpu, int reason) +{ + switch (reason) { + case GVT_FAILSAFE_UNSUPPORTED_GUEST: + pr_err("Detected your guest driver doesn't support GVT-g.\n"); + break; + case GVT_FAILSAFE_INSUFFICIENT_RESOURCE: + pr_err("Graphics resource is not enough for the guest\n"); + break; + case GVT_FAILSAFE_GUEST_ERR: + pr_err("GVT Internal error for the guest\n"); + break; + default: + break; + } + pr_err("Now vgpu %d will enter failsafe mode.\n", vgpu->id); + vgpu->failsafe = true; +} + +static int sanitize_fence_mmio_access(struct intel_vgpu *vgpu, + unsigned int fence_num, void *p_data, unsigned int bytes) +{ + unsigned int max_fence = vgpu_fence_sz(vgpu); + + if (fence_num >= max_fence) { + gvt_vgpu_err("access oob fence reg %d/%d\n", + fence_num, max_fence); + + /* When guest access oob fence regs without access + * pv_info first, we treat guest not supporting GVT, + * and we will let vgpu enter failsafe mode. + */ + if (!vgpu->pv_notified) + enter_failsafe_mode(vgpu, + GVT_FAILSAFE_UNSUPPORTED_GUEST); + + memset(p_data, 0, bytes); + return -EINVAL; + } + return 0; +} + +static int gamw_echo_dev_rw_ia_write(struct intel_vgpu *vgpu, + unsigned int offset, void *p_data, unsigned int bytes) +{ + u32 ips = (*(u32 *)p_data) & GAMW_ECO_ENABLE_64K_IPS_FIELD; + + if (GRAPHICS_VER(vgpu->gvt->gt->i915) <= 10) { + if (ips == GAMW_ECO_ENABLE_64K_IPS_FIELD) + gvt_dbg_core("vgpu%d: ips enabled\n", vgpu->id); + else if (!ips) + gvt_dbg_core("vgpu%d: ips disabled\n", vgpu->id); + else { + /* All engines must be enabled together for vGPU, + * since we don't know which engine the ppgtt will + * bind to when shadowing. + */ + gvt_vgpu_err("Unsupported IPS setting %x, cannot enable 64K gtt.\n", + ips); + return -EINVAL; + } + } + + write_vreg(vgpu, offset, p_data, bytes); + return 0; +} + +static int fence_mmio_read(struct intel_vgpu *vgpu, unsigned int off, + void *p_data, unsigned int bytes) +{ + int ret; + + ret = sanitize_fence_mmio_access(vgpu, offset_to_fence_num(off), + p_data, bytes); + if (ret) + return ret; + read_vreg(vgpu, off, p_data, bytes); + return 0; +} + +static int fence_mmio_write(struct intel_vgpu *vgpu, unsigned int off, + void *p_data, unsigned int bytes) +{ + struct intel_gvt *gvt = vgpu->gvt; + unsigned int fence_num = offset_to_fence_num(off); + int ret; + + ret = sanitize_fence_mmio_access(vgpu, fence_num, p_data, bytes); + if (ret) + return ret; + write_vreg(vgpu, off, p_data, bytes); + + mmio_hw_access_pre(gvt->gt); + intel_vgpu_write_fence(vgpu, fence_num, + vgpu_vreg64(vgpu, fence_num_to_offset(fence_num))); + mmio_hw_access_post(gvt->gt); + return 0; +} + +#define CALC_MODE_MASK_REG(old, new) \ + (((new) & GENMASK(31, 16)) \ + | ((((old) & GENMASK(15, 0)) & ~((new) >> 16)) \ + | ((new) & ((new) >> 16)))) + +static int mul_force_wake_write(struct intel_vgpu *vgpu, + unsigned int offset, void *p_data, unsigned int bytes) +{ + u32 old, new; + u32 ack_reg_offset; + + old = vgpu_vreg(vgpu, offset); + new = CALC_MODE_MASK_REG(old, *(u32 *)p_data); + + if (GRAPHICS_VER(vgpu->gvt->gt->i915) >= 9) { + switch (offset) { + case FORCEWAKE_RENDER_GEN9_REG: + ack_reg_offset = FORCEWAKE_ACK_RENDER_GEN9_REG; + break; + case FORCEWAKE_GT_GEN9_REG: + ack_reg_offset = FORCEWAKE_ACK_GT_GEN9_REG; + break; + case FORCEWAKE_MEDIA_GEN9_REG: + ack_reg_offset = FORCEWAKE_ACK_MEDIA_GEN9_REG; + break; + default: + /*should not hit here*/ + gvt_vgpu_err("invalid forcewake offset 0x%x\n", offset); + return -EINVAL; + } + } else { + ack_reg_offset = FORCEWAKE_ACK_HSW_REG; + } + + vgpu_vreg(vgpu, offset) = new; + vgpu_vreg(vgpu, ack_reg_offset) = (new & GENMASK(15, 0)); + return 0; +} + +static int gdrst_mmio_write(struct intel_vgpu *vgpu, unsigned int offset, + void *p_data, unsigned int bytes) +{ + intel_engine_mask_t engine_mask = 0; + u32 data; + + write_vreg(vgpu, offset, p_data, bytes); + data = vgpu_vreg(vgpu, offset); + + if (data & GEN6_GRDOM_FULL) { + gvt_dbg_mmio("vgpu%d: request full GPU reset\n", vgpu->id); + engine_mask = ALL_ENGINES; + } else { + if (data & GEN6_GRDOM_RENDER) { + gvt_dbg_mmio("vgpu%d: request RCS reset\n", vgpu->id); + engine_mask |= BIT(RCS0); + } + if (data & GEN6_GRDOM_MEDIA) { + gvt_dbg_mmio("vgpu%d: request VCS reset\n", vgpu->id); + engine_mask |= BIT(VCS0); + } + if (data & GEN6_GRDOM_BLT) { + gvt_dbg_mmio("vgpu%d: request BCS Reset\n", vgpu->id); + engine_mask |= BIT(BCS0); + } + if (data & GEN6_GRDOM_VECS) { + gvt_dbg_mmio("vgpu%d: request VECS Reset\n", vgpu->id); + engine_mask |= BIT(VECS0); + } + if (data & GEN8_GRDOM_MEDIA2) { + gvt_dbg_mmio("vgpu%d: request VCS2 Reset\n", vgpu->id); + engine_mask |= BIT(VCS1); + } + if (data & GEN9_GRDOM_GUC) { + gvt_dbg_mmio("vgpu%d: request GUC Reset\n", vgpu->id); + vgpu_vreg_t(vgpu, GUC_STATUS) |= GS_MIA_IN_RESET; + } + engine_mask &= vgpu->gvt->gt->info.engine_mask; + } + + /* vgpu_lock already hold by emulate mmio r/w */ + intel_gvt_reset_vgpu_locked(vgpu, false, engine_mask); + + /* sw will wait for the device to ack the reset request */ + vgpu_vreg(vgpu, offset) = 0; + + return 0; +} + +static int gmbus_mmio_read(struct intel_vgpu *vgpu, unsigned int offset, + void *p_data, unsigned int bytes) +{ + return intel_gvt_i2c_handle_gmbus_read(vgpu, offset, p_data, bytes); +} + +static int gmbus_mmio_write(struct intel_vgpu *vgpu, unsigned int offset, + void *p_data, unsigned int bytes) +{ + return intel_gvt_i2c_handle_gmbus_write(vgpu, offset, p_data, bytes); +} + +static int pch_pp_control_mmio_write(struct intel_vgpu *vgpu, + unsigned int offset, void *p_data, unsigned int bytes) +{ + write_vreg(vgpu, offset, p_data, bytes); + + if (vgpu_vreg(vgpu, offset) & PANEL_POWER_ON) { + vgpu_vreg_t(vgpu, PCH_PP_STATUS) |= PP_ON; + vgpu_vreg_t(vgpu, PCH_PP_STATUS) |= PP_SEQUENCE_STATE_ON_IDLE; + vgpu_vreg_t(vgpu, PCH_PP_STATUS) &= ~PP_SEQUENCE_POWER_DOWN; + vgpu_vreg_t(vgpu, PCH_PP_STATUS) &= ~PP_CYCLE_DELAY_ACTIVE; + + } else + vgpu_vreg_t(vgpu, PCH_PP_STATUS) &= + ~(PP_ON | PP_SEQUENCE_POWER_DOWN + | PP_CYCLE_DELAY_ACTIVE); + return 0; +} + +static int transconf_mmio_write(struct intel_vgpu *vgpu, + unsigned int offset, void *p_data, unsigned int bytes) +{ + write_vreg(vgpu, offset, p_data, bytes); + + if (vgpu_vreg(vgpu, offset) & TRANS_ENABLE) + vgpu_vreg(vgpu, offset) |= TRANS_STATE_ENABLE; + else + vgpu_vreg(vgpu, offset) &= ~TRANS_STATE_ENABLE; + return 0; +} + +static int lcpll_ctl_mmio_write(struct intel_vgpu *vgpu, unsigned int offset, + void *p_data, unsigned int bytes) +{ + write_vreg(vgpu, offset, p_data, bytes); + + if (vgpu_vreg(vgpu, offset) & LCPLL_PLL_DISABLE) + vgpu_vreg(vgpu, offset) &= ~LCPLL_PLL_LOCK; + else + vgpu_vreg(vgpu, offset) |= LCPLL_PLL_LOCK; + + if (vgpu_vreg(vgpu, offset) & LCPLL_CD_SOURCE_FCLK) + vgpu_vreg(vgpu, offset) |= LCPLL_CD_SOURCE_FCLK_DONE; + else + vgpu_vreg(vgpu, offset) &= ~LCPLL_CD_SOURCE_FCLK_DONE; + + return 0; +} + +static int dpy_reg_mmio_read(struct intel_vgpu *vgpu, unsigned int offset, + void *p_data, unsigned int bytes) +{ + switch (offset) { + case 0xe651c: + case 0xe661c: + case 0xe671c: + case 0xe681c: + vgpu_vreg(vgpu, offset) = 1 << 17; + break; + case 0xe6c04: + vgpu_vreg(vgpu, offset) = 0x3; + break; + case 0xe6e1c: + vgpu_vreg(vgpu, offset) = 0x2f << 16; + break; + default: + return -EINVAL; + } + + read_vreg(vgpu, offset, p_data, bytes); + return 0; +} + +/* + * Only PIPE_A is enabled in current vGPU display and PIPE_A is tied to + * TRANSCODER_A in HW. DDI/PORT could be PORT_x depends on + * setup_virtual_dp_monitor(). + * emulate_monitor_status_change() set up PLL for PORT_x as the initial enabled + * DPLL. Later guest driver may setup a different DPLLx when setting mode. + * So the correct sequence to find DP stream clock is: + * Check TRANS_DDI_FUNC_CTL on TRANSCODER_A to get PORT_x. + * Check correct PLLx for PORT_x to get PLL frequency and DP bitrate. + * Then Refresh rate then can be calculated based on follow equations: + * Pixel clock = h_total * v_total * refresh_rate + * stream clock = Pixel clock + * ls_clk = DP bitrate + * Link M/N = strm_clk / ls_clk + */ + +static u32 bdw_vgpu_get_dp_bitrate(struct intel_vgpu *vgpu, enum port port) +{ + u32 dp_br = 0; + u32 ddi_pll_sel = vgpu_vreg_t(vgpu, PORT_CLK_SEL(port)); + + switch (ddi_pll_sel) { + case PORT_CLK_SEL_LCPLL_2700: + dp_br = 270000 * 2; + break; + case PORT_CLK_SEL_LCPLL_1350: + dp_br = 135000 * 2; + break; + case PORT_CLK_SEL_LCPLL_810: + dp_br = 81000 * 2; + break; + case PORT_CLK_SEL_SPLL: + { + switch (vgpu_vreg_t(vgpu, SPLL_CTL) & SPLL_FREQ_MASK) { + case SPLL_FREQ_810MHz: + dp_br = 81000 * 2; + break; + case SPLL_FREQ_1350MHz: + dp_br = 135000 * 2; + break; + case SPLL_FREQ_2700MHz: + dp_br = 270000 * 2; + break; + default: + gvt_dbg_dpy("vgpu-%d PORT_%c can't get freq from SPLL 0x%08x\n", + vgpu->id, port_name(port), vgpu_vreg_t(vgpu, SPLL_CTL)); + break; + } + break; + } + case PORT_CLK_SEL_WRPLL1: + case PORT_CLK_SEL_WRPLL2: + { + u32 wrpll_ctl; + int refclk, n, p, r; + + if (ddi_pll_sel == PORT_CLK_SEL_WRPLL1) + wrpll_ctl = vgpu_vreg_t(vgpu, WRPLL_CTL(DPLL_ID_WRPLL1)); + else + wrpll_ctl = vgpu_vreg_t(vgpu, WRPLL_CTL(DPLL_ID_WRPLL2)); + + switch (wrpll_ctl & WRPLL_REF_MASK) { + case WRPLL_REF_PCH_SSC: + refclk = vgpu->gvt->gt->i915->display.dpll.ref_clks.ssc; + break; + case WRPLL_REF_LCPLL: + refclk = 2700000; + break; + default: + gvt_dbg_dpy("vgpu-%d PORT_%c WRPLL can't get refclk 0x%08x\n", + vgpu->id, port_name(port), wrpll_ctl); + goto out; + } + + r = wrpll_ctl & WRPLL_DIVIDER_REF_MASK; + p = (wrpll_ctl & WRPLL_DIVIDER_POST_MASK) >> WRPLL_DIVIDER_POST_SHIFT; + n = (wrpll_ctl & WRPLL_DIVIDER_FB_MASK) >> WRPLL_DIVIDER_FB_SHIFT; + + dp_br = (refclk * n / 10) / (p * r) * 2; + break; + } + default: + gvt_dbg_dpy("vgpu-%d PORT_%c has invalid clock select 0x%08x\n", + vgpu->id, port_name(port), vgpu_vreg_t(vgpu, PORT_CLK_SEL(port))); + break; + } + +out: + return dp_br; +} + +static u32 bxt_vgpu_get_dp_bitrate(struct intel_vgpu *vgpu, enum port port) +{ + u32 dp_br = 0; + int refclk = vgpu->gvt->gt->i915->display.dpll.ref_clks.nssc; + enum dpio_phy phy = DPIO_PHY0; + enum dpio_channel ch = DPIO_CH0; + struct dpll clock = {0}; + u32 temp; + + /* Port to PHY mapping is fixed, see bxt_ddi_phy_info{} */ + switch (port) { + case PORT_A: + phy = DPIO_PHY1; + ch = DPIO_CH0; + break; + case PORT_B: + phy = DPIO_PHY0; + ch = DPIO_CH0; + break; + case PORT_C: + phy = DPIO_PHY0; + ch = DPIO_CH1; + break; + default: + gvt_dbg_dpy("vgpu-%d no PHY for PORT_%c\n", vgpu->id, port_name(port)); + goto out; + } + + temp = vgpu_vreg_t(vgpu, BXT_PORT_PLL_ENABLE(port)); + if (!(temp & PORT_PLL_ENABLE) || !(temp & PORT_PLL_LOCK)) { + gvt_dbg_dpy("vgpu-%d PORT_%c PLL_ENABLE 0x%08x isn't enabled or locked\n", + vgpu->id, port_name(port), temp); + goto out; + } + + clock.m1 = 2; + clock.m2 = REG_FIELD_GET(PORT_PLL_M2_INT_MASK, + vgpu_vreg_t(vgpu, BXT_PORT_PLL(phy, ch, 0))) << 22; + if (vgpu_vreg_t(vgpu, BXT_PORT_PLL(phy, ch, 3)) & PORT_PLL_M2_FRAC_ENABLE) + clock.m2 |= REG_FIELD_GET(PORT_PLL_M2_FRAC_MASK, + vgpu_vreg_t(vgpu, BXT_PORT_PLL(phy, ch, 2))); + clock.n = REG_FIELD_GET(PORT_PLL_N_MASK, + vgpu_vreg_t(vgpu, BXT_PORT_PLL(phy, ch, 1))); + clock.p1 = REG_FIELD_GET(PORT_PLL_P1_MASK, + vgpu_vreg_t(vgpu, BXT_PORT_PLL_EBB_0(phy, ch))); + clock.p2 = REG_FIELD_GET(PORT_PLL_P2_MASK, + vgpu_vreg_t(vgpu, BXT_PORT_PLL_EBB_0(phy, ch))); + clock.m = clock.m1 * clock.m2; + clock.p = clock.p1 * clock.p2 * 5; + + if (clock.n == 0 || clock.p == 0) { + gvt_dbg_dpy("vgpu-%d PORT_%c PLL has invalid divider\n", vgpu->id, port_name(port)); + goto out; + } + + clock.vco = DIV_ROUND_CLOSEST_ULL(mul_u32_u32(refclk, clock.m), clock.n << 22); + clock.dot = DIV_ROUND_CLOSEST(clock.vco, clock.p); + + dp_br = clock.dot; + +out: + return dp_br; +} + +static u32 skl_vgpu_get_dp_bitrate(struct intel_vgpu *vgpu, enum port port) +{ + u32 dp_br = 0; + enum intel_dpll_id dpll_id = DPLL_ID_SKL_DPLL0; + + /* Find the enabled DPLL for the DDI/PORT */ + if (!(vgpu_vreg_t(vgpu, DPLL_CTRL2) & DPLL_CTRL2_DDI_CLK_OFF(port)) && + (vgpu_vreg_t(vgpu, DPLL_CTRL2) & DPLL_CTRL2_DDI_SEL_OVERRIDE(port))) { + dpll_id += (vgpu_vreg_t(vgpu, DPLL_CTRL2) & + DPLL_CTRL2_DDI_CLK_SEL_MASK(port)) >> + DPLL_CTRL2_DDI_CLK_SEL_SHIFT(port); + } else { + gvt_dbg_dpy("vgpu-%d DPLL for PORT_%c isn't turned on\n", + vgpu->id, port_name(port)); + return dp_br; + } + + /* Find PLL output frequency from correct DPLL, and get bir rate */ + switch ((vgpu_vreg_t(vgpu, DPLL_CTRL1) & + DPLL_CTRL1_LINK_RATE_MASK(dpll_id)) >> + DPLL_CTRL1_LINK_RATE_SHIFT(dpll_id)) { + case DPLL_CTRL1_LINK_RATE_810: + dp_br = 81000 * 2; + break; + case DPLL_CTRL1_LINK_RATE_1080: + dp_br = 108000 * 2; + break; + case DPLL_CTRL1_LINK_RATE_1350: + dp_br = 135000 * 2; + break; + case DPLL_CTRL1_LINK_RATE_1620: + dp_br = 162000 * 2; + break; + case DPLL_CTRL1_LINK_RATE_2160: + dp_br = 216000 * 2; + break; + case DPLL_CTRL1_LINK_RATE_2700: + dp_br = 270000 * 2; + break; + default: + dp_br = 0; + gvt_dbg_dpy("vgpu-%d PORT_%c fail to get DPLL-%d freq\n", + vgpu->id, port_name(port), dpll_id); + } + + return dp_br; +} + +static void vgpu_update_refresh_rate(struct intel_vgpu *vgpu) +{ + struct drm_i915_private *dev_priv = vgpu->gvt->gt->i915; + enum port port; + u32 dp_br, link_m, link_n, htotal, vtotal; + + /* Find DDI/PORT assigned to TRANSCODER_A, expect B or D */ + port = (vgpu_vreg_t(vgpu, TRANS_DDI_FUNC_CTL(TRANSCODER_A)) & + TRANS_DDI_PORT_MASK) >> TRANS_DDI_PORT_SHIFT; + if (port != PORT_B && port != PORT_D) { + gvt_dbg_dpy("vgpu-%d unsupported PORT_%c\n", vgpu->id, port_name(port)); + return; + } + + /* Calculate DP bitrate from PLL */ + if (IS_BROADWELL(dev_priv)) + dp_br = bdw_vgpu_get_dp_bitrate(vgpu, port); + else if (IS_BROXTON(dev_priv)) + dp_br = bxt_vgpu_get_dp_bitrate(vgpu, port); + else + dp_br = skl_vgpu_get_dp_bitrate(vgpu, port); + + /* Get DP link symbol clock M/N */ + link_m = vgpu_vreg_t(vgpu, PIPE_LINK_M1(TRANSCODER_A)); + link_n = vgpu_vreg_t(vgpu, PIPE_LINK_N1(TRANSCODER_A)); + + /* Get H/V total from transcoder timing */ + htotal = (vgpu_vreg_t(vgpu, HTOTAL(TRANSCODER_A)) >> TRANS_HTOTAL_SHIFT); + vtotal = (vgpu_vreg_t(vgpu, VTOTAL(TRANSCODER_A)) >> TRANS_VTOTAL_SHIFT); + + if (dp_br && link_n && htotal && vtotal) { + u64 pixel_clk = 0; + u32 new_rate = 0; + u32 *old_rate = &(intel_vgpu_port(vgpu, vgpu->display.port_num)->vrefresh_k); + + /* Calcuate pixel clock by (ls_clk * M / N) */ + pixel_clk = div_u64(mul_u32_u32(link_m, dp_br), link_n); + pixel_clk *= MSEC_PER_SEC; + + /* Calcuate refresh rate by (pixel_clk / (h_total * v_total)) */ + new_rate = DIV64_U64_ROUND_CLOSEST(mul_u64_u32_shr(pixel_clk, MSEC_PER_SEC, 0), mul_u32_u32(htotal + 1, vtotal + 1)); + + if (*old_rate != new_rate) + *old_rate = new_rate; + + gvt_dbg_dpy("vgpu-%d PIPE_%c refresh rate updated to %d\n", + vgpu->id, pipe_name(PIPE_A), new_rate); + } +} + +static int pipeconf_mmio_write(struct intel_vgpu *vgpu, unsigned int offset, + void *p_data, unsigned int bytes) +{ + u32 data; + + write_vreg(vgpu, offset, p_data, bytes); + data = vgpu_vreg(vgpu, offset); + + if (data & PIPECONF_ENABLE) { + vgpu_vreg(vgpu, offset) |= PIPECONF_STATE_ENABLE; + vgpu_update_refresh_rate(vgpu); + vgpu_update_vblank_emulation(vgpu, true); + } else { + vgpu_vreg(vgpu, offset) &= ~PIPECONF_STATE_ENABLE; + vgpu_update_vblank_emulation(vgpu, false); + } + return 0; +} + +/* sorted in ascending order */ +static i915_reg_t force_nonpriv_white_list[] = { + _MMIO(0xd80), + GEN9_CS_DEBUG_MODE1, //_MMIO(0x20ec) + GEN9_CTX_PREEMPT_REG,//_MMIO(0x2248) + CL_PRIMITIVES_COUNT, //_MMIO(0x2340) + PS_INVOCATION_COUNT, //_MMIO(0x2348) + PS_DEPTH_COUNT, //_MMIO(0x2350) + GEN8_CS_CHICKEN1,//_MMIO(0x2580) + _MMIO(0x2690), + _MMIO(0x2694), + _MMIO(0x2698), + _MMIO(0x2754), + _MMIO(0x28a0), + _MMIO(0x4de0), + _MMIO(0x4de4), + _MMIO(0x4dfc), + GEN7_COMMON_SLICE_CHICKEN1,//_MMIO(0x7010) + _MMIO(0x7014), + HDC_CHICKEN0,//_MMIO(0x7300) + GEN8_HDC_CHICKEN1,//_MMIO(0x7304) + _MMIO(0x7700), + _MMIO(0x7704), + _MMIO(0x7708), + _MMIO(0x770c), + _MMIO(0x83a8), + _MMIO(0xb110), + GEN8_L3SQCREG4,//_MMIO(0xb118) + _MMIO(0xe100), + _MMIO(0xe18c), + _MMIO(0xe48c), + _MMIO(0xe5f4), + _MMIO(0x64844), +}; + +/* a simple bsearch */ +static inline bool in_whitelist(u32 reg) +{ + int left = 0, right = ARRAY_SIZE(force_nonpriv_white_list); + i915_reg_t *array = force_nonpriv_white_list; + + while (left < right) { + int mid = (left + right)/2; + + if (reg > array[mid].reg) + left = mid + 1; + else if (reg < array[mid].reg) + right = mid; + else + return true; + } + return false; +} + +static int force_nonpriv_write(struct intel_vgpu *vgpu, + unsigned int offset, void *p_data, unsigned int bytes) +{ + u32 reg_nonpriv = (*(u32 *)p_data) & REG_GENMASK(25, 2); + const struct intel_engine_cs *engine = + intel_gvt_render_mmio_to_engine(vgpu->gvt, offset); + + if (bytes != 4 || !IS_ALIGNED(offset, bytes) || !engine) { + gvt_err("vgpu(%d) Invalid FORCE_NONPRIV offset %x(%dB)\n", + vgpu->id, offset, bytes); + return -EINVAL; + } + + if (!in_whitelist(reg_nonpriv) && + reg_nonpriv != i915_mmio_reg_offset(RING_NOPID(engine->mmio_base))) { + gvt_err("vgpu(%d) Invalid FORCE_NONPRIV write %x at offset %x\n", + vgpu->id, reg_nonpriv, offset); + } else + intel_vgpu_default_mmio_write(vgpu, offset, p_data, bytes); + + return 0; +} + +static int ddi_buf_ctl_mmio_write(struct intel_vgpu *vgpu, unsigned int offset, + void *p_data, unsigned int bytes) +{ + write_vreg(vgpu, offset, p_data, bytes); + + if (vgpu_vreg(vgpu, offset) & DDI_BUF_CTL_ENABLE) { + vgpu_vreg(vgpu, offset) &= ~DDI_BUF_IS_IDLE; + } else { + vgpu_vreg(vgpu, offset) |= DDI_BUF_IS_IDLE; + if (offset == i915_mmio_reg_offset(DDI_BUF_CTL(PORT_E))) + vgpu_vreg_t(vgpu, DP_TP_STATUS(PORT_E)) + &= ~DP_TP_STATUS_AUTOTRAIN_DONE; + } + return 0; +} + +static int fdi_rx_iir_mmio_write(struct intel_vgpu *vgpu, + unsigned int offset, void *p_data, unsigned int bytes) +{ + vgpu_vreg(vgpu, offset) &= ~*(u32 *)p_data; + return 0; +} + +#define FDI_LINK_TRAIN_PATTERN1 0 +#define FDI_LINK_TRAIN_PATTERN2 1 + +static int fdi_auto_training_started(struct intel_vgpu *vgpu) +{ + u32 ddi_buf_ctl = vgpu_vreg_t(vgpu, DDI_BUF_CTL(PORT_E)); + u32 rx_ctl = vgpu_vreg(vgpu, _FDI_RXA_CTL); + u32 tx_ctl = vgpu_vreg_t(vgpu, DP_TP_CTL(PORT_E)); + + if ((ddi_buf_ctl & DDI_BUF_CTL_ENABLE) && + (rx_ctl & FDI_RX_ENABLE) && + (rx_ctl & FDI_AUTO_TRAINING) && + (tx_ctl & DP_TP_CTL_ENABLE) && + (tx_ctl & DP_TP_CTL_FDI_AUTOTRAIN)) + return 1; + else + return 0; +} + +static int check_fdi_rx_train_status(struct intel_vgpu *vgpu, + enum pipe pipe, unsigned int train_pattern) +{ + i915_reg_t fdi_rx_imr, fdi_tx_ctl, fdi_rx_ctl; + unsigned int fdi_rx_check_bits, fdi_tx_check_bits; + unsigned int fdi_rx_train_bits, fdi_tx_train_bits; + unsigned int fdi_iir_check_bits; + + fdi_rx_imr = FDI_RX_IMR(pipe); + fdi_tx_ctl = FDI_TX_CTL(pipe); + fdi_rx_ctl = FDI_RX_CTL(pipe); + + if (train_pattern == FDI_LINK_TRAIN_PATTERN1) { + fdi_rx_train_bits = FDI_LINK_TRAIN_PATTERN_1_CPT; + fdi_tx_train_bits = FDI_LINK_TRAIN_PATTERN_1; + fdi_iir_check_bits = FDI_RX_BIT_LOCK; + } else if (train_pattern == FDI_LINK_TRAIN_PATTERN2) { + fdi_rx_train_bits = FDI_LINK_TRAIN_PATTERN_2_CPT; + fdi_tx_train_bits = FDI_LINK_TRAIN_PATTERN_2; + fdi_iir_check_bits = FDI_RX_SYMBOL_LOCK; + } else { + gvt_vgpu_err("Invalid train pattern %d\n", train_pattern); + return -EINVAL; + } + + fdi_rx_check_bits = FDI_RX_ENABLE | fdi_rx_train_bits; + fdi_tx_check_bits = FDI_TX_ENABLE | fdi_tx_train_bits; + + /* If imr bit has been masked */ + if (vgpu_vreg_t(vgpu, fdi_rx_imr) & fdi_iir_check_bits) + return 0; + + if (((vgpu_vreg_t(vgpu, fdi_tx_ctl) & fdi_tx_check_bits) + == fdi_tx_check_bits) + && ((vgpu_vreg_t(vgpu, fdi_rx_ctl) & fdi_rx_check_bits) + == fdi_rx_check_bits)) + return 1; + else + return 0; +} + +#define INVALID_INDEX (~0U) + +static unsigned int calc_index(unsigned int offset, unsigned int start, + unsigned int next, unsigned int end, i915_reg_t i915_end) +{ + unsigned int range = next - start; + + if (!end) + end = i915_mmio_reg_offset(i915_end); + if (offset < start || offset > end) + return INVALID_INDEX; + offset -= start; + return offset / range; +} + +#define FDI_RX_CTL_TO_PIPE(offset) \ + calc_index(offset, _FDI_RXA_CTL, _FDI_RXB_CTL, 0, FDI_RX_CTL(PIPE_C)) + +#define FDI_TX_CTL_TO_PIPE(offset) \ + calc_index(offset, _FDI_TXA_CTL, _FDI_TXB_CTL, 0, FDI_TX_CTL(PIPE_C)) + +#define FDI_RX_IMR_TO_PIPE(offset) \ + calc_index(offset, _FDI_RXA_IMR, _FDI_RXB_IMR, 0, FDI_RX_IMR(PIPE_C)) + +static int update_fdi_rx_iir_status(struct intel_vgpu *vgpu, + unsigned int offset, void *p_data, unsigned int bytes) +{ + i915_reg_t fdi_rx_iir; + unsigned int index; + int ret; + + if (FDI_RX_CTL_TO_PIPE(offset) != INVALID_INDEX) + index = FDI_RX_CTL_TO_PIPE(offset); + else if (FDI_TX_CTL_TO_PIPE(offset) != INVALID_INDEX) + index = FDI_TX_CTL_TO_PIPE(offset); + else if (FDI_RX_IMR_TO_PIPE(offset) != INVALID_INDEX) + index = FDI_RX_IMR_TO_PIPE(offset); + else { + gvt_vgpu_err("Unsupported registers %x\n", offset); + return -EINVAL; + } + + write_vreg(vgpu, offset, p_data, bytes); + + fdi_rx_iir = FDI_RX_IIR(index); + + ret = check_fdi_rx_train_status(vgpu, index, FDI_LINK_TRAIN_PATTERN1); + if (ret < 0) + return ret; + if (ret) + vgpu_vreg_t(vgpu, fdi_rx_iir) |= FDI_RX_BIT_LOCK; + + ret = check_fdi_rx_train_status(vgpu, index, FDI_LINK_TRAIN_PATTERN2); + if (ret < 0) + return ret; + if (ret) + vgpu_vreg_t(vgpu, fdi_rx_iir) |= FDI_RX_SYMBOL_LOCK; + + if (offset == _FDI_RXA_CTL) + if (fdi_auto_training_started(vgpu)) + vgpu_vreg_t(vgpu, DP_TP_STATUS(PORT_E)) |= + DP_TP_STATUS_AUTOTRAIN_DONE; + return 0; +} + +#define DP_TP_CTL_TO_PORT(offset) \ + calc_index(offset, _DP_TP_CTL_A, _DP_TP_CTL_B, 0, DP_TP_CTL(PORT_E)) + +static int dp_tp_ctl_mmio_write(struct intel_vgpu *vgpu, unsigned int offset, + void *p_data, unsigned int bytes) +{ + i915_reg_t status_reg; + unsigned int index; + u32 data; + + write_vreg(vgpu, offset, p_data, bytes); + + index = DP_TP_CTL_TO_PORT(offset); + data = (vgpu_vreg(vgpu, offset) & GENMASK(10, 8)) >> 8; + if (data == 0x2) { + status_reg = DP_TP_STATUS(index); + vgpu_vreg_t(vgpu, status_reg) |= (1 << 25); + } + return 0; +} + +static int dp_tp_status_mmio_write(struct intel_vgpu *vgpu, + unsigned int offset, void *p_data, unsigned int bytes) +{ + u32 reg_val; + u32 sticky_mask; + + reg_val = *((u32 *)p_data); + sticky_mask = GENMASK(27, 26) | (1 << 24); + + vgpu_vreg(vgpu, offset) = (reg_val & ~sticky_mask) | + (vgpu_vreg(vgpu, offset) & sticky_mask); + vgpu_vreg(vgpu, offset) &= ~(reg_val & sticky_mask); + return 0; +} + +static int pch_adpa_mmio_write(struct intel_vgpu *vgpu, + unsigned int offset, void *p_data, unsigned int bytes) +{ + u32 data; + + write_vreg(vgpu, offset, p_data, bytes); + data = vgpu_vreg(vgpu, offset); + + if (data & ADPA_CRT_HOTPLUG_FORCE_TRIGGER) + vgpu_vreg(vgpu, offset) &= ~ADPA_CRT_HOTPLUG_FORCE_TRIGGER; + return 0; +} + +static int south_chicken2_mmio_write(struct intel_vgpu *vgpu, + unsigned int offset, void *p_data, unsigned int bytes) +{ + u32 data; + + write_vreg(vgpu, offset, p_data, bytes); + data = vgpu_vreg(vgpu, offset); + + if (data & FDI_MPHY_IOSFSB_RESET_CTL) + vgpu_vreg(vgpu, offset) |= FDI_MPHY_IOSFSB_RESET_STATUS; + else + vgpu_vreg(vgpu, offset) &= ~FDI_MPHY_IOSFSB_RESET_STATUS; + return 0; +} + +#define DSPSURF_TO_PIPE(offset) \ + calc_index(offset, _DSPASURF, _DSPBSURF, 0, DSPSURF(PIPE_C)) + +static int pri_surf_mmio_write(struct intel_vgpu *vgpu, unsigned int offset, + void *p_data, unsigned int bytes) +{ + struct drm_i915_private *dev_priv = vgpu->gvt->gt->i915; + u32 pipe = DSPSURF_TO_PIPE(offset); + int event = SKL_FLIP_EVENT(pipe, PLANE_PRIMARY); + + write_vreg(vgpu, offset, p_data, bytes); + vgpu_vreg_t(vgpu, DSPSURFLIVE(pipe)) = vgpu_vreg(vgpu, offset); + + vgpu_vreg_t(vgpu, PIPE_FLIPCOUNT_G4X(pipe))++; + + if (vgpu_vreg_t(vgpu, DSPCNTR(pipe)) & PLANE_CTL_ASYNC_FLIP) + intel_vgpu_trigger_virtual_event(vgpu, event); + else + set_bit(event, vgpu->irq.flip_done_event[pipe]); + + return 0; +} + +#define SPRSURF_TO_PIPE(offset) \ + calc_index(offset, _SPRA_SURF, _SPRB_SURF, 0, SPRSURF(PIPE_C)) + +static int spr_surf_mmio_write(struct intel_vgpu *vgpu, unsigned int offset, + void *p_data, unsigned int bytes) +{ + u32 pipe = SPRSURF_TO_PIPE(offset); + int event = SKL_FLIP_EVENT(pipe, PLANE_SPRITE0); + + write_vreg(vgpu, offset, p_data, bytes); + vgpu_vreg_t(vgpu, SPRSURFLIVE(pipe)) = vgpu_vreg(vgpu, offset); + + if (vgpu_vreg_t(vgpu, SPRCTL(pipe)) & PLANE_CTL_ASYNC_FLIP) + intel_vgpu_trigger_virtual_event(vgpu, event); + else + set_bit(event, vgpu->irq.flip_done_event[pipe]); + + return 0; +} + +static int reg50080_mmio_write(struct intel_vgpu *vgpu, + unsigned int offset, void *p_data, + unsigned int bytes) +{ + struct drm_i915_private *dev_priv = vgpu->gvt->gt->i915; + enum pipe pipe = REG_50080_TO_PIPE(offset); + enum plane_id plane = REG_50080_TO_PLANE(offset); + int event = SKL_FLIP_EVENT(pipe, plane); + + write_vreg(vgpu, offset, p_data, bytes); + if (plane == PLANE_PRIMARY) { + vgpu_vreg_t(vgpu, DSPSURFLIVE(pipe)) = vgpu_vreg(vgpu, offset); + vgpu_vreg_t(vgpu, PIPE_FLIPCOUNT_G4X(pipe))++; + } else { + vgpu_vreg_t(vgpu, SPRSURFLIVE(pipe)) = vgpu_vreg(vgpu, offset); + } + + if ((vgpu_vreg(vgpu, offset) & REG50080_FLIP_TYPE_MASK) == REG50080_FLIP_TYPE_ASYNC) + intel_vgpu_trigger_virtual_event(vgpu, event); + else + set_bit(event, vgpu->irq.flip_done_event[pipe]); + + return 0; +} + +static int trigger_aux_channel_interrupt(struct intel_vgpu *vgpu, + unsigned int reg) +{ + struct drm_i915_private *dev_priv = vgpu->gvt->gt->i915; + enum intel_gvt_event_type event; + + if (reg == i915_mmio_reg_offset(DP_AUX_CH_CTL(AUX_CH_A))) + event = AUX_CHANNEL_A; + else if (reg == _PCH_DPB_AUX_CH_CTL || + reg == i915_mmio_reg_offset(DP_AUX_CH_CTL(AUX_CH_B))) + event = AUX_CHANNEL_B; + else if (reg == _PCH_DPC_AUX_CH_CTL || + reg == i915_mmio_reg_offset(DP_AUX_CH_CTL(AUX_CH_C))) + event = AUX_CHANNEL_C; + else if (reg == _PCH_DPD_AUX_CH_CTL || + reg == i915_mmio_reg_offset(DP_AUX_CH_CTL(AUX_CH_D))) + event = AUX_CHANNEL_D; + else { + drm_WARN_ON(&dev_priv->drm, true); + return -EINVAL; + } + + intel_vgpu_trigger_virtual_event(vgpu, event); + return 0; +} + +static int dp_aux_ch_ctl_trans_done(struct intel_vgpu *vgpu, u32 value, + unsigned int reg, int len, bool data_valid) +{ + /* mark transaction done */ + value |= DP_AUX_CH_CTL_DONE; + value &= ~DP_AUX_CH_CTL_SEND_BUSY; + value &= ~DP_AUX_CH_CTL_RECEIVE_ERROR; + + if (data_valid) + value &= ~DP_AUX_CH_CTL_TIME_OUT_ERROR; + else + value |= DP_AUX_CH_CTL_TIME_OUT_ERROR; + + /* message size */ + value &= ~(0xf << 20); + value |= (len << 20); + vgpu_vreg(vgpu, reg) = value; + + if (value & DP_AUX_CH_CTL_INTERRUPT) + return trigger_aux_channel_interrupt(vgpu, reg); + return 0; +} + +static void dp_aux_ch_ctl_link_training(struct intel_vgpu_dpcd_data *dpcd, + u8 t) +{ + if ((t & DPCD_TRAINING_PATTERN_SET_MASK) == DPCD_TRAINING_PATTERN_1) { + /* training pattern 1 for CR */ + /* set LANE0_CR_DONE, LANE1_CR_DONE */ + dpcd->data[DPCD_LANE0_1_STATUS] |= DPCD_LANES_CR_DONE; + /* set LANE2_CR_DONE, LANE3_CR_DONE */ + dpcd->data[DPCD_LANE2_3_STATUS] |= DPCD_LANES_CR_DONE; + } else if ((t & DPCD_TRAINING_PATTERN_SET_MASK) == + DPCD_TRAINING_PATTERN_2) { + /* training pattern 2 for EQ */ + /* Set CHANNEL_EQ_DONE and SYMBOL_LOCKED for Lane0_1 */ + dpcd->data[DPCD_LANE0_1_STATUS] |= DPCD_LANES_EQ_DONE; + dpcd->data[DPCD_LANE0_1_STATUS] |= DPCD_SYMBOL_LOCKED; + /* Set CHANNEL_EQ_DONE and SYMBOL_LOCKED for Lane2_3 */ + dpcd->data[DPCD_LANE2_3_STATUS] |= DPCD_LANES_EQ_DONE; + dpcd->data[DPCD_LANE2_3_STATUS] |= DPCD_SYMBOL_LOCKED; + /* set INTERLANE_ALIGN_DONE */ + dpcd->data[DPCD_LANE_ALIGN_STATUS_UPDATED] |= + DPCD_INTERLANE_ALIGN_DONE; + } else if ((t & DPCD_TRAINING_PATTERN_SET_MASK) == + DPCD_LINK_TRAINING_DISABLED) { + /* finish link training */ + /* set sink status as synchronized */ + dpcd->data[DPCD_SINK_STATUS] = DPCD_SINK_IN_SYNC; + } +} + +#define _REG_HSW_DP_AUX_CH_CTL(dp) \ + ((dp) ? (_PCH_DPB_AUX_CH_CTL + ((dp)-1)*0x100) : 0x64010) + +#define _REG_SKL_DP_AUX_CH_CTL(dp) (0x64010 + (dp) * 0x100) + +#define OFFSET_TO_DP_AUX_PORT(offset) (((offset) & 0xF00) >> 8) + +#define dpy_is_valid_port(port) \ + (((port) >= PORT_A) && ((port) < I915_MAX_PORTS)) + +static int dp_aux_ch_ctl_mmio_write(struct intel_vgpu *vgpu, + unsigned int offset, void *p_data, unsigned int bytes) +{ + struct intel_vgpu_display *display = &vgpu->display; + int msg, addr, ctrl, op, len; + int port_index = OFFSET_TO_DP_AUX_PORT(offset); + struct intel_vgpu_dpcd_data *dpcd = NULL; + struct intel_vgpu_port *port = NULL; + u32 data; + + if (!dpy_is_valid_port(port_index)) { + gvt_vgpu_err("Unsupported DP port access!\n"); + return 0; + } + + write_vreg(vgpu, offset, p_data, bytes); + data = vgpu_vreg(vgpu, offset); + + if ((GRAPHICS_VER(vgpu->gvt->gt->i915) >= 9) + && offset != _REG_SKL_DP_AUX_CH_CTL(port_index)) { + /* SKL DPB/C/D aux ctl register changed */ + return 0; + } else if (IS_BROADWELL(vgpu->gvt->gt->i915) && + offset != _REG_HSW_DP_AUX_CH_CTL(port_index)) { + /* write to the data registers */ + return 0; + } + + if (!(data & DP_AUX_CH_CTL_SEND_BUSY)) { + /* just want to clear the sticky bits */ + vgpu_vreg(vgpu, offset) = 0; + return 0; + } + + port = &display->ports[port_index]; + dpcd = port->dpcd; + + /* read out message from DATA1 register */ + msg = vgpu_vreg(vgpu, offset + 4); + addr = (msg >> 8) & 0xffff; + ctrl = (msg >> 24) & 0xff; + len = msg & 0xff; + op = ctrl >> 4; + + if (op == GVT_AUX_NATIVE_WRITE) { + int t; + u8 buf[16]; + + if ((addr + len + 1) >= DPCD_SIZE) { + /* + * Write request exceeds what we supported, + * DCPD spec: When a Source Device is writing a DPCD + * address not supported by the Sink Device, the Sink + * Device shall reply with AUX NACK and “M” equal to + * zero. + */ + + /* NAK the write */ + vgpu_vreg(vgpu, offset + 4) = AUX_NATIVE_REPLY_NAK; + dp_aux_ch_ctl_trans_done(vgpu, data, offset, 2, true); + return 0; + } + + /* + * Write request format: Headr (command + address + size) occupies + * 4 bytes, followed by (len + 1) bytes of data. See details at + * intel_dp_aux_transfer(). + */ + if ((len + 1 + 4) > AUX_BURST_SIZE) { + gvt_vgpu_err("dp_aux_header: len %d is too large\n", len); + return -EINVAL; + } + + /* unpack data from vreg to buf */ + for (t = 0; t < 4; t++) { + u32 r = vgpu_vreg(vgpu, offset + 8 + t * 4); + + buf[t * 4] = (r >> 24) & 0xff; + buf[t * 4 + 1] = (r >> 16) & 0xff; + buf[t * 4 + 2] = (r >> 8) & 0xff; + buf[t * 4 + 3] = r & 0xff; + } + + /* write to virtual DPCD */ + if (dpcd && dpcd->data_valid) { + for (t = 0; t <= len; t++) { + int p = addr + t; + + dpcd->data[p] = buf[t]; + /* check for link training */ + if (p == DPCD_TRAINING_PATTERN_SET) + dp_aux_ch_ctl_link_training(dpcd, + buf[t]); + } + } + + /* ACK the write */ + vgpu_vreg(vgpu, offset + 4) = 0; + dp_aux_ch_ctl_trans_done(vgpu, data, offset, 1, + dpcd && dpcd->data_valid); + return 0; + } + + if (op == GVT_AUX_NATIVE_READ) { + int idx, i, ret = 0; + + if ((addr + len + 1) >= DPCD_SIZE) { + /* + * read request exceeds what we supported + * DPCD spec: A Sink Device receiving a Native AUX CH + * read request for an unsupported DPCD address must + * reply with an AUX ACK and read data set equal to + * zero instead of replying with AUX NACK. + */ + + /* ACK the READ*/ + vgpu_vreg(vgpu, offset + 4) = 0; + vgpu_vreg(vgpu, offset + 8) = 0; + vgpu_vreg(vgpu, offset + 12) = 0; + vgpu_vreg(vgpu, offset + 16) = 0; + vgpu_vreg(vgpu, offset + 20) = 0; + + dp_aux_ch_ctl_trans_done(vgpu, data, offset, len + 2, + true); + return 0; + } + + for (idx = 1; idx <= 5; idx++) { + /* clear the data registers */ + vgpu_vreg(vgpu, offset + 4 * idx) = 0; + } + + /* + * Read reply format: ACK (1 byte) plus (len + 1) bytes of data. + */ + if ((len + 2) > AUX_BURST_SIZE) { + gvt_vgpu_err("dp_aux_header: len %d is too large\n", len); + return -EINVAL; + } + + /* read from virtual DPCD to vreg */ + /* first 4 bytes: [ACK][addr][addr+1][addr+2] */ + if (dpcd && dpcd->data_valid) { + for (i = 1; i <= (len + 1); i++) { + int t; + + t = dpcd->data[addr + i - 1]; + t <<= (24 - 8 * (i % 4)); + ret |= t; + + if ((i % 4 == 3) || (i == (len + 1))) { + vgpu_vreg(vgpu, offset + + (i / 4 + 1) * 4) = ret; + ret = 0; + } + } + } + dp_aux_ch_ctl_trans_done(vgpu, data, offset, len + 2, + dpcd && dpcd->data_valid); + return 0; + } + + /* i2c transaction starts */ + intel_gvt_i2c_handle_aux_ch_write(vgpu, port_index, offset, p_data); + + if (data & DP_AUX_CH_CTL_INTERRUPT) + trigger_aux_channel_interrupt(vgpu, offset); + return 0; +} + +static int mbctl_write(struct intel_vgpu *vgpu, unsigned int offset, + void *p_data, unsigned int bytes) +{ + *(u32 *)p_data &= (~GEN6_MBCTL_ENABLE_BOOT_FETCH); + write_vreg(vgpu, offset, p_data, bytes); + return 0; +} + +static int vga_control_mmio_write(struct intel_vgpu *vgpu, unsigned int offset, + void *p_data, unsigned int bytes) +{ + bool vga_disable; + + write_vreg(vgpu, offset, p_data, bytes); + vga_disable = vgpu_vreg(vgpu, offset) & VGA_DISP_DISABLE; + + gvt_dbg_core("vgpu%d: %s VGA mode\n", vgpu->id, + vga_disable ? "Disable" : "Enable"); + return 0; +} + +static u32 read_virtual_sbi_register(struct intel_vgpu *vgpu, + unsigned int sbi_offset) +{ + struct intel_vgpu_display *display = &vgpu->display; + int num = display->sbi.number; + int i; + + for (i = 0; i < num; ++i) + if (display->sbi.registers[i].offset == sbi_offset) + break; + + if (i == num) + return 0; + + return display->sbi.registers[i].value; +} + +static void write_virtual_sbi_register(struct intel_vgpu *vgpu, + unsigned int offset, u32 value) +{ + struct intel_vgpu_display *display = &vgpu->display; + int num = display->sbi.number; + int i; + + for (i = 0; i < num; ++i) { + if (display->sbi.registers[i].offset == offset) + break; + } + + if (i == num) { + if (num == SBI_REG_MAX) { + gvt_vgpu_err("SBI caching meets maximum limits\n"); + return; + } + display->sbi.number++; + } + + display->sbi.registers[i].offset = offset; + display->sbi.registers[i].value = value; +} + +static int sbi_data_mmio_read(struct intel_vgpu *vgpu, unsigned int offset, + void *p_data, unsigned int bytes) +{ + if (((vgpu_vreg_t(vgpu, SBI_CTL_STAT) & SBI_OPCODE_MASK) >> + SBI_OPCODE_SHIFT) == SBI_CMD_CRRD) { + unsigned int sbi_offset = (vgpu_vreg_t(vgpu, SBI_ADDR) & + SBI_ADDR_OFFSET_MASK) >> SBI_ADDR_OFFSET_SHIFT; + vgpu_vreg(vgpu, offset) = read_virtual_sbi_register(vgpu, + sbi_offset); + } + read_vreg(vgpu, offset, p_data, bytes); + return 0; +} + +static int sbi_ctl_mmio_write(struct intel_vgpu *vgpu, unsigned int offset, + void *p_data, unsigned int bytes) +{ + u32 data; + + write_vreg(vgpu, offset, p_data, bytes); + data = vgpu_vreg(vgpu, offset); + + data &= ~(SBI_STAT_MASK << SBI_STAT_SHIFT); + data |= SBI_READY; + + data &= ~(SBI_RESPONSE_MASK << SBI_RESPONSE_SHIFT); + data |= SBI_RESPONSE_SUCCESS; + + vgpu_vreg(vgpu, offset) = data; + + if (((vgpu_vreg_t(vgpu, SBI_CTL_STAT) & SBI_OPCODE_MASK) >> + SBI_OPCODE_SHIFT) == SBI_CMD_CRWR) { + unsigned int sbi_offset = (vgpu_vreg_t(vgpu, SBI_ADDR) & + SBI_ADDR_OFFSET_MASK) >> SBI_ADDR_OFFSET_SHIFT; + + write_virtual_sbi_register(vgpu, sbi_offset, + vgpu_vreg_t(vgpu, SBI_DATA)); + } + return 0; +} + +#define _vgtif_reg(x) \ + (VGT_PVINFO_PAGE + offsetof(struct vgt_if, x)) + +static int pvinfo_mmio_read(struct intel_vgpu *vgpu, unsigned int offset, + void *p_data, unsigned int bytes) +{ + bool invalid_read = false; + + read_vreg(vgpu, offset, p_data, bytes); + + switch (offset) { + case _vgtif_reg(magic) ... _vgtif_reg(vgt_id): + if (offset + bytes > _vgtif_reg(vgt_id) + 4) + invalid_read = true; + break; + case _vgtif_reg(avail_rs.mappable_gmadr.base) ... + _vgtif_reg(avail_rs.fence_num): + if (offset + bytes > + _vgtif_reg(avail_rs.fence_num) + 4) + invalid_read = true; + break; + case 0x78010: /* vgt_caps */ + case 0x7881c: + break; + default: + invalid_read = true; + break; + } + if (invalid_read) + gvt_vgpu_err("invalid pvinfo read: [%x:%x] = %x\n", + offset, bytes, *(u32 *)p_data); + vgpu->pv_notified = true; + return 0; +} + +static int handle_g2v_notification(struct intel_vgpu *vgpu, int notification) +{ + enum intel_gvt_gtt_type root_entry_type = GTT_TYPE_PPGTT_ROOT_L4_ENTRY; + struct intel_vgpu_mm *mm; + u64 *pdps; + + pdps = (u64 *)&vgpu_vreg64_t(vgpu, vgtif_reg(pdp[0])); + + switch (notification) { + case VGT_G2V_PPGTT_L3_PAGE_TABLE_CREATE: + root_entry_type = GTT_TYPE_PPGTT_ROOT_L3_ENTRY; + fallthrough; + case VGT_G2V_PPGTT_L4_PAGE_TABLE_CREATE: + mm = intel_vgpu_get_ppgtt_mm(vgpu, root_entry_type, pdps); + return PTR_ERR_OR_ZERO(mm); + case VGT_G2V_PPGTT_L3_PAGE_TABLE_DESTROY: + case VGT_G2V_PPGTT_L4_PAGE_TABLE_DESTROY: + return intel_vgpu_put_ppgtt_mm(vgpu, pdps); + case VGT_G2V_EXECLIST_CONTEXT_CREATE: + case VGT_G2V_EXECLIST_CONTEXT_DESTROY: + case 1: /* Remove this in guest driver. */ + break; + default: + gvt_vgpu_err("Invalid PV notification %d\n", notification); + } + return 0; +} + +static int send_display_ready_uevent(struct intel_vgpu *vgpu, int ready) +{ + struct kobject *kobj = &vgpu->gvt->gt->i915->drm.primary->kdev->kobj; + char *env[3] = {NULL, NULL, NULL}; + char vmid_str[20]; + char display_ready_str[20]; + + snprintf(display_ready_str, 20, "GVT_DISPLAY_READY=%d", ready); + env[0] = display_ready_str; + + snprintf(vmid_str, 20, "VMID=%d", vgpu->id); + env[1] = vmid_str; + + return kobject_uevent_env(kobj, KOBJ_ADD, env); +} + +static int pvinfo_mmio_write(struct intel_vgpu *vgpu, unsigned int offset, + void *p_data, unsigned int bytes) +{ + u32 data = *(u32 *)p_data; + bool invalid_write = false; + + switch (offset) { + case _vgtif_reg(display_ready): + send_display_ready_uevent(vgpu, data ? 1 : 0); + break; + case _vgtif_reg(g2v_notify): + handle_g2v_notification(vgpu, data); + break; + /* add xhot and yhot to handled list to avoid error log */ + case _vgtif_reg(cursor_x_hot): + case _vgtif_reg(cursor_y_hot): + case _vgtif_reg(pdp[0].lo): + case _vgtif_reg(pdp[0].hi): + case _vgtif_reg(pdp[1].lo): + case _vgtif_reg(pdp[1].hi): + case _vgtif_reg(pdp[2].lo): + case _vgtif_reg(pdp[2].hi): + case _vgtif_reg(pdp[3].lo): + case _vgtif_reg(pdp[3].hi): + case _vgtif_reg(execlist_context_descriptor_lo): + case _vgtif_reg(execlist_context_descriptor_hi): + break; + case _vgtif_reg(rsv5[0])..._vgtif_reg(rsv5[3]): + invalid_write = true; + enter_failsafe_mode(vgpu, GVT_FAILSAFE_INSUFFICIENT_RESOURCE); + break; + default: + invalid_write = true; + gvt_vgpu_err("invalid pvinfo write offset %x bytes %x data %x\n", + offset, bytes, data); + break; + } + + if (!invalid_write) + write_vreg(vgpu, offset, p_data, bytes); + + return 0; +} + +static int pf_write(struct intel_vgpu *vgpu, + unsigned int offset, void *p_data, unsigned int bytes) +{ + struct drm_i915_private *i915 = vgpu->gvt->gt->i915; + u32 val = *(u32 *)p_data; + + if ((offset == _PS_1A_CTRL || offset == _PS_2A_CTRL || + offset == _PS_1B_CTRL || offset == _PS_2B_CTRL || + offset == _PS_1C_CTRL) && (val & PS_PLANE_SEL_MASK) != 0) { + drm_WARN_ONCE(&i915->drm, true, + "VM(%d): guest is trying to scaling a plane\n", + vgpu->id); + return 0; + } + + return intel_vgpu_default_mmio_write(vgpu, offset, p_data, bytes); +} + +static int power_well_ctl_mmio_write(struct intel_vgpu *vgpu, + unsigned int offset, void *p_data, unsigned int bytes) +{ + write_vreg(vgpu, offset, p_data, bytes); + + if (vgpu_vreg(vgpu, offset) & + HSW_PWR_WELL_CTL_REQ(HSW_PW_CTL_IDX_GLOBAL)) + vgpu_vreg(vgpu, offset) |= + HSW_PWR_WELL_CTL_STATE(HSW_PW_CTL_IDX_GLOBAL); + else + vgpu_vreg(vgpu, offset) &= + ~HSW_PWR_WELL_CTL_STATE(HSW_PW_CTL_IDX_GLOBAL); + return 0; +} + +static int gen9_dbuf_ctl_mmio_write(struct intel_vgpu *vgpu, + unsigned int offset, void *p_data, unsigned int bytes) +{ + write_vreg(vgpu, offset, p_data, bytes); + + if (vgpu_vreg(vgpu, offset) & DBUF_POWER_REQUEST) + vgpu_vreg(vgpu, offset) |= DBUF_POWER_STATE; + else + vgpu_vreg(vgpu, offset) &= ~DBUF_POWER_STATE; + + return 0; +} + +static int fpga_dbg_mmio_write(struct intel_vgpu *vgpu, + unsigned int offset, void *p_data, unsigned int bytes) +{ + write_vreg(vgpu, offset, p_data, bytes); + + if (vgpu_vreg(vgpu, offset) & FPGA_DBG_RM_NOCLAIM) + vgpu_vreg(vgpu, offset) &= ~FPGA_DBG_RM_NOCLAIM; + return 0; +} + +static int dma_ctrl_write(struct intel_vgpu *vgpu, unsigned int offset, + void *p_data, unsigned int bytes) +{ + struct drm_i915_private *i915 = vgpu->gvt->gt->i915; + u32 mode; + + write_vreg(vgpu, offset, p_data, bytes); + mode = vgpu_vreg(vgpu, offset); + + if (GFX_MODE_BIT_SET_IN_MASK(mode, START_DMA)) { + drm_WARN_ONCE(&i915->drm, 1, + "VM(%d): iGVT-g doesn't support GuC\n", + vgpu->id); + return 0; + } + + return 0; +} + +static int gen9_trtte_write(struct intel_vgpu *vgpu, unsigned int offset, + void *p_data, unsigned int bytes) +{ + struct drm_i915_private *i915 = vgpu->gvt->gt->i915; + u32 trtte = *(u32 *)p_data; + + if ((trtte & 1) && (trtte & (1 << 1)) == 0) { + drm_WARN(&i915->drm, 1, + "VM(%d): Use physical address for TRTT!\n", + vgpu->id); + return -EINVAL; + } + write_vreg(vgpu, offset, p_data, bytes); + + return 0; +} + +static int gen9_trtt_chicken_write(struct intel_vgpu *vgpu, unsigned int offset, + void *p_data, unsigned int bytes) +{ + write_vreg(vgpu, offset, p_data, bytes); + return 0; +} + +static int dpll_status_read(struct intel_vgpu *vgpu, unsigned int offset, + void *p_data, unsigned int bytes) +{ + u32 v = 0; + + if (vgpu_vreg(vgpu, 0x46010) & (1 << 31)) + v |= (1 << 0); + + if (vgpu_vreg(vgpu, 0x46014) & (1 << 31)) + v |= (1 << 8); + + if (vgpu_vreg(vgpu, 0x46040) & (1 << 31)) + v |= (1 << 16); + + if (vgpu_vreg(vgpu, 0x46060) & (1 << 31)) + v |= (1 << 24); + + vgpu_vreg(vgpu, offset) = v; + + return intel_vgpu_default_mmio_read(vgpu, offset, p_data, bytes); +} + +static int mailbox_write(struct intel_vgpu *vgpu, unsigned int offset, + void *p_data, unsigned int bytes) +{ + u32 value = *(u32 *)p_data; + u32 cmd = value & 0xff; + u32 *data0 = &vgpu_vreg_t(vgpu, GEN6_PCODE_DATA); + + switch (cmd) { + case GEN9_PCODE_READ_MEM_LATENCY: + if (IS_SKYLAKE(vgpu->gvt->gt->i915) || + IS_KABYLAKE(vgpu->gvt->gt->i915) || + IS_COFFEELAKE(vgpu->gvt->gt->i915) || + IS_COMETLAKE(vgpu->gvt->gt->i915)) { + /** + * "Read memory latency" command on gen9. + * Below memory latency values are read + * from skylake platform. + */ + if (!*data0) + *data0 = 0x1e1a1100; + else + *data0 = 0x61514b3d; + } else if (IS_BROXTON(vgpu->gvt->gt->i915)) { + /** + * "Read memory latency" command on gen9. + * Below memory latency values are read + * from Broxton MRB. + */ + if (!*data0) + *data0 = 0x16080707; + else + *data0 = 0x16161616; + } + break; + case SKL_PCODE_CDCLK_CONTROL: + if (IS_SKYLAKE(vgpu->gvt->gt->i915) || + IS_KABYLAKE(vgpu->gvt->gt->i915) || + IS_COFFEELAKE(vgpu->gvt->gt->i915) || + IS_COMETLAKE(vgpu->gvt->gt->i915)) + *data0 = SKL_CDCLK_READY_FOR_CHANGE; + break; + case GEN6_PCODE_READ_RC6VIDS: + *data0 |= 0x1; + break; + } + + gvt_dbg_core("VM(%d) write %x to mailbox, return data0 %x\n", + vgpu->id, value, *data0); + /** + * PCODE_READY clear means ready for pcode read/write, + * PCODE_ERROR_MASK clear means no error happened. In GVT-g we + * always emulate as pcode read/write success and ready for access + * anytime, since we don't touch real physical registers here. + */ + value &= ~(GEN6_PCODE_READY | GEN6_PCODE_ERROR_MASK); + return intel_vgpu_default_mmio_write(vgpu, offset, &value, bytes); +} + +static int hws_pga_write(struct intel_vgpu *vgpu, unsigned int offset, + void *p_data, unsigned int bytes) +{ + u32 value = *(u32 *)p_data; + const struct intel_engine_cs *engine = + intel_gvt_render_mmio_to_engine(vgpu->gvt, offset); + + if (value != 0 && + !intel_gvt_ggtt_validate_range(vgpu, value, I915_GTT_PAGE_SIZE)) { + gvt_vgpu_err("write invalid HWSP address, reg:0x%x, value:0x%x\n", + offset, value); + return -EINVAL; + } + + /* + * Need to emulate all the HWSP register write to ensure host can + * update the VM CSB status correctly. Here listed registers can + * support BDW, SKL or other platforms with same HWSP registers. + */ + if (unlikely(!engine)) { + gvt_vgpu_err("access unknown hardware status page register:0x%x\n", + offset); + return -EINVAL; + } + vgpu->hws_pga[engine->id] = value; + gvt_dbg_mmio("VM(%d) write: 0x%x to HWSP: 0x%x\n", + vgpu->id, value, offset); + + return intel_vgpu_default_mmio_write(vgpu, offset, &value, bytes); +} + +static int skl_power_well_ctl_write(struct intel_vgpu *vgpu, + unsigned int offset, void *p_data, unsigned int bytes) +{ + u32 v = *(u32 *)p_data; + + if (IS_BROXTON(vgpu->gvt->gt->i915)) + v &= (1 << 31) | (1 << 29); + else + v &= (1 << 31) | (1 << 29) | (1 << 9) | + (1 << 7) | (1 << 5) | (1 << 3) | (1 << 1); + v |= (v >> 1); + + return intel_vgpu_default_mmio_write(vgpu, offset, &v, bytes); +} + +static int skl_lcpll_write(struct intel_vgpu *vgpu, unsigned int offset, + void *p_data, unsigned int bytes) +{ + u32 v = *(u32 *)p_data; + + /* other bits are MBZ. */ + v &= (1 << 31) | (1 << 30); + v & (1 << 31) ? (v |= (1 << 30)) : (v &= ~(1 << 30)); + + vgpu_vreg(vgpu, offset) = v; + + return 0; +} + +static int bxt_de_pll_enable_write(struct intel_vgpu *vgpu, + unsigned int offset, void *p_data, unsigned int bytes) +{ + u32 v = *(u32 *)p_data; + + if (v & BXT_DE_PLL_PLL_ENABLE) + v |= BXT_DE_PLL_LOCK; + + vgpu_vreg(vgpu, offset) = v; + + return 0; +} + +static int bxt_port_pll_enable_write(struct intel_vgpu *vgpu, + unsigned int offset, void *p_data, unsigned int bytes) +{ + u32 v = *(u32 *)p_data; + + if (v & PORT_PLL_ENABLE) + v |= PORT_PLL_LOCK; + + vgpu_vreg(vgpu, offset) = v; + + return 0; +} + +static int bxt_phy_ctl_family_write(struct intel_vgpu *vgpu, + unsigned int offset, void *p_data, unsigned int bytes) +{ + u32 v = *(u32 *)p_data; + u32 data = v & COMMON_RESET_DIS ? BXT_PHY_LANE_ENABLED : 0; + + switch (offset) { + case _PHY_CTL_FAMILY_EDP: + vgpu_vreg(vgpu, _BXT_PHY_CTL_DDI_A) = data; + break; + case _PHY_CTL_FAMILY_DDI: + vgpu_vreg(vgpu, _BXT_PHY_CTL_DDI_B) = data; + vgpu_vreg(vgpu, _BXT_PHY_CTL_DDI_C) = data; + break; + } + + vgpu_vreg(vgpu, offset) = v; + + return 0; +} + +static int bxt_port_tx_dw3_read(struct intel_vgpu *vgpu, + unsigned int offset, void *p_data, unsigned int bytes) +{ + u32 v = vgpu_vreg(vgpu, offset); + + v &= ~UNIQUE_TRANGE_EN_METHOD; + + vgpu_vreg(vgpu, offset) = v; + + return intel_vgpu_default_mmio_read(vgpu, offset, p_data, bytes); +} + +static int bxt_pcs_dw12_grp_write(struct intel_vgpu *vgpu, + unsigned int offset, void *p_data, unsigned int bytes) +{ + u32 v = *(u32 *)p_data; + + if (offset == _PORT_PCS_DW12_GRP_A || offset == _PORT_PCS_DW12_GRP_B) { + vgpu_vreg(vgpu, offset - 0x600) = v; + vgpu_vreg(vgpu, offset - 0x800) = v; + } else { + vgpu_vreg(vgpu, offset - 0x400) = v; + vgpu_vreg(vgpu, offset - 0x600) = v; + } + + vgpu_vreg(vgpu, offset) = v; + + return 0; +} + +static int bxt_gt_disp_pwron_write(struct intel_vgpu *vgpu, + unsigned int offset, void *p_data, unsigned int bytes) +{ + u32 v = *(u32 *)p_data; + + if (v & BIT(0)) { + vgpu_vreg_t(vgpu, BXT_PORT_CL1CM_DW0(DPIO_PHY0)) &= + ~PHY_RESERVED; + vgpu_vreg_t(vgpu, BXT_PORT_CL1CM_DW0(DPIO_PHY0)) |= + PHY_POWER_GOOD; + } + + if (v & BIT(1)) { + vgpu_vreg_t(vgpu, BXT_PORT_CL1CM_DW0(DPIO_PHY1)) &= + ~PHY_RESERVED; + vgpu_vreg_t(vgpu, BXT_PORT_CL1CM_DW0(DPIO_PHY1)) |= + PHY_POWER_GOOD; + } + + + vgpu_vreg(vgpu, offset) = v; + + return 0; +} + +static int edp_psr_imr_iir_write(struct intel_vgpu *vgpu, + unsigned int offset, void *p_data, unsigned int bytes) +{ + vgpu_vreg(vgpu, offset) = 0; + return 0; +} + +/* + * FixMe: + * If guest fills non-priv batch buffer on ApolloLake/Broxton as Mesa i965 did: + * 717e7539124d (i965: Use a WC map and memcpy for the batch instead of pwrite.) + * Due to the missing flush of bb filled by VM vCPU, host GPU hangs on executing + * these MI_BATCH_BUFFER. + * Temporarily workaround this by setting SNOOP bit for PAT3 used by PPGTT + * PML4 PTE: PAT(0) PCD(1) PWT(1). + * The performance is still expected to be low, will need further improvement. + */ +static int bxt_ppat_low_write(struct intel_vgpu *vgpu, unsigned int offset, + void *p_data, unsigned int bytes) +{ + u64 pat = + GEN8_PPAT(0, CHV_PPAT_SNOOP) | + GEN8_PPAT(1, 0) | + GEN8_PPAT(2, 0) | + GEN8_PPAT(3, CHV_PPAT_SNOOP) | + GEN8_PPAT(4, CHV_PPAT_SNOOP) | + GEN8_PPAT(5, CHV_PPAT_SNOOP) | + GEN8_PPAT(6, CHV_PPAT_SNOOP) | + GEN8_PPAT(7, CHV_PPAT_SNOOP); + + vgpu_vreg(vgpu, offset) = lower_32_bits(pat); + + return 0; +} + +static int guc_status_read(struct intel_vgpu *vgpu, + unsigned int offset, void *p_data, + unsigned int bytes) +{ + /* keep MIA_IN_RESET before clearing */ + read_vreg(vgpu, offset, p_data, bytes); + vgpu_vreg(vgpu, offset) &= ~GS_MIA_IN_RESET; + return 0; +} + +static int mmio_read_from_hw(struct intel_vgpu *vgpu, + unsigned int offset, void *p_data, unsigned int bytes) +{ + struct intel_gvt *gvt = vgpu->gvt; + const struct intel_engine_cs *engine = + intel_gvt_render_mmio_to_engine(gvt, offset); + + /** + * Read HW reg in following case + * a. the offset isn't a ring mmio + * b. the offset's ring is running on hw. + * c. the offset is ring time stamp mmio + */ + + if (!engine || + vgpu == gvt->scheduler.engine_owner[engine->id] || + offset == i915_mmio_reg_offset(RING_TIMESTAMP(engine->mmio_base)) || + offset == i915_mmio_reg_offset(RING_TIMESTAMP_UDW(engine->mmio_base))) { + mmio_hw_access_pre(gvt->gt); + vgpu_vreg(vgpu, offset) = + intel_uncore_read(gvt->gt->uncore, _MMIO(offset)); + mmio_hw_access_post(gvt->gt); + } + + return intel_vgpu_default_mmio_read(vgpu, offset, p_data, bytes); +} + +static int elsp_mmio_write(struct intel_vgpu *vgpu, unsigned int offset, + void *p_data, unsigned int bytes) +{ + struct drm_i915_private *i915 = vgpu->gvt->gt->i915; + const struct intel_engine_cs *engine = intel_gvt_render_mmio_to_engine(vgpu->gvt, offset); + struct intel_vgpu_execlist *execlist; + u32 data = *(u32 *)p_data; + int ret = 0; + + if (drm_WARN_ON(&i915->drm, !engine)) + return -EINVAL; + + /* + * Due to d3_entered is used to indicate skipping PPGTT invalidation on + * vGPU reset, it's set on D0->D3 on PCI config write, and cleared after + * vGPU reset if in resuming. + * In S0ix exit, the device power state also transite from D3 to D0 as + * S3 resume, but no vGPU reset (triggered by QEMU devic model). After + * S0ix exit, all engines continue to work. However the d3_entered + * remains set which will break next vGPU reset logic (miss the expected + * PPGTT invalidation). + * Engines can only work in D0. Thus the 1st elsp write gives GVT a + * chance to clear d3_entered. + */ + if (vgpu->d3_entered) + vgpu->d3_entered = false; + + execlist = &vgpu->submission.execlist[engine->id]; + + execlist->elsp_dwords.data[3 - execlist->elsp_dwords.index] = data; + if (execlist->elsp_dwords.index == 3) { + ret = intel_vgpu_submit_execlist(vgpu, engine); + if(ret) + gvt_vgpu_err("fail submit workload on ring %s\n", + engine->name); + } + + ++execlist->elsp_dwords.index; + execlist->elsp_dwords.index &= 0x3; + return ret; +} + +static int ring_mode_mmio_write(struct intel_vgpu *vgpu, unsigned int offset, + void *p_data, unsigned int bytes) +{ + u32 data = *(u32 *)p_data; + const struct intel_engine_cs *engine = + intel_gvt_render_mmio_to_engine(vgpu->gvt, offset); + bool enable_execlist; + int ret; + + (*(u32 *)p_data) &= ~_MASKED_BIT_ENABLE(1); + if (IS_COFFEELAKE(vgpu->gvt->gt->i915) || + IS_COMETLAKE(vgpu->gvt->gt->i915)) + (*(u32 *)p_data) &= ~_MASKED_BIT_ENABLE(2); + write_vreg(vgpu, offset, p_data, bytes); + + if (IS_MASKED_BITS_ENABLED(data, 1)) { + enter_failsafe_mode(vgpu, GVT_FAILSAFE_UNSUPPORTED_GUEST); + return 0; + } + + if ((IS_COFFEELAKE(vgpu->gvt->gt->i915) || + IS_COMETLAKE(vgpu->gvt->gt->i915)) && + IS_MASKED_BITS_ENABLED(data, 2)) { + enter_failsafe_mode(vgpu, GVT_FAILSAFE_UNSUPPORTED_GUEST); + return 0; + } + + /* when PPGTT mode enabled, we will check if guest has called + * pvinfo, if not, we will treat this guest as non-gvtg-aware + * guest, and stop emulating its cfg space, mmio, gtt, etc. + */ + if ((IS_MASKED_BITS_ENABLED(data, GFX_PPGTT_ENABLE) || + IS_MASKED_BITS_ENABLED(data, GFX_RUN_LIST_ENABLE)) && + !vgpu->pv_notified) { + enter_failsafe_mode(vgpu, GVT_FAILSAFE_UNSUPPORTED_GUEST); + return 0; + } + if (IS_MASKED_BITS_ENABLED(data, GFX_RUN_LIST_ENABLE) || + IS_MASKED_BITS_DISABLED(data, GFX_RUN_LIST_ENABLE)) { + enable_execlist = !!(data & GFX_RUN_LIST_ENABLE); + + gvt_dbg_core("EXECLIST %s on ring %s\n", + (enable_execlist ? "enabling" : "disabling"), + engine->name); + + if (!enable_execlist) + return 0; + + ret = intel_vgpu_select_submission_ops(vgpu, + engine->mask, + INTEL_VGPU_EXECLIST_SUBMISSION); + if (ret) + return ret; + + intel_vgpu_start_schedule(vgpu); + } + return 0; +} + +static int gvt_reg_tlb_control_handler(struct intel_vgpu *vgpu, + unsigned int offset, void *p_data, unsigned int bytes) +{ + unsigned int id = 0; + + write_vreg(vgpu, offset, p_data, bytes); + vgpu_vreg(vgpu, offset) = 0; + + switch (offset) { + case 0x4260: + id = RCS0; + break; + case 0x4264: + id = VCS0; + break; + case 0x4268: + id = VCS1; + break; + case 0x426c: + id = BCS0; + break; + case 0x4270: + id = VECS0; + break; + default: + return -EINVAL; + } + set_bit(id, (void *)vgpu->submission.tlb_handle_pending); + + return 0; +} + +static int ring_reset_ctl_write(struct intel_vgpu *vgpu, + unsigned int offset, void *p_data, unsigned int bytes) +{ + u32 data; + + write_vreg(vgpu, offset, p_data, bytes); + data = vgpu_vreg(vgpu, offset); + + if (IS_MASKED_BITS_ENABLED(data, RESET_CTL_REQUEST_RESET)) + data |= RESET_CTL_READY_TO_RESET; + else if (data & _MASKED_BIT_DISABLE(RESET_CTL_REQUEST_RESET)) + data &= ~RESET_CTL_READY_TO_RESET; + + vgpu_vreg(vgpu, offset) = data; + return 0; +} + +static int csfe_chicken1_mmio_write(struct intel_vgpu *vgpu, + unsigned int offset, void *p_data, + unsigned int bytes) +{ + u32 data = *(u32 *)p_data; + + (*(u32 *)p_data) &= ~_MASKED_BIT_ENABLE(0x18); + write_vreg(vgpu, offset, p_data, bytes); + + if (IS_MASKED_BITS_ENABLED(data, 0x10) || + IS_MASKED_BITS_ENABLED(data, 0x8)) + enter_failsafe_mode(vgpu, GVT_FAILSAFE_UNSUPPORTED_GUEST); + + return 0; +} + +#define MMIO_F(reg, s, f, am, rm, d, r, w) do { \ + ret = setup_mmio_info(gvt, i915_mmio_reg_offset(reg), \ + s, f, am, rm, d, r, w); \ + if (ret) \ + return ret; \ +} while (0) + +#define MMIO_DH(reg, d, r, w) \ + MMIO_F(reg, 4, 0, 0, 0, d, r, w) + +#define MMIO_DFH(reg, d, f, r, w) \ + MMIO_F(reg, 4, f, 0, 0, d, r, w) + +#define MMIO_GM(reg, d, r, w) \ + MMIO_F(reg, 4, F_GMADR, 0xFFFFF000, 0, d, r, w) + +#define MMIO_GM_RDR(reg, d, r, w) \ + MMIO_F(reg, 4, F_GMADR | F_CMD_ACCESS, 0xFFFFF000, 0, d, r, w) + +#define MMIO_RO(reg, d, f, rm, r, w) \ + MMIO_F(reg, 4, F_RO | f, 0, rm, d, r, w) + +#define MMIO_RING_F(prefix, s, f, am, rm, d, r, w) do { \ + MMIO_F(prefix(RENDER_RING_BASE), s, f, am, rm, d, r, w); \ + MMIO_F(prefix(BLT_RING_BASE), s, f, am, rm, d, r, w); \ + MMIO_F(prefix(GEN6_BSD_RING_BASE), s, f, am, rm, d, r, w); \ + MMIO_F(prefix(VEBOX_RING_BASE), s, f, am, rm, d, r, w); \ + if (HAS_ENGINE(gvt->gt, VCS1)) \ + MMIO_F(prefix(GEN8_BSD2_RING_BASE), s, f, am, rm, d, r, w); \ +} while (0) + +#define MMIO_RING_DFH(prefix, d, f, r, w) \ + MMIO_RING_F(prefix, 4, f, 0, 0, d, r, w) + +#define MMIO_RING_GM(prefix, d, r, w) \ + MMIO_RING_F(prefix, 4, F_GMADR, 0xFFFF0000, 0, d, r, w) + +#define MMIO_RING_GM_RDR(prefix, d, r, w) \ + MMIO_RING_F(prefix, 4, F_GMADR | F_CMD_ACCESS, 0xFFFF0000, 0, d, r, w) + +#define MMIO_RING_RO(prefix, d, f, rm, r, w) \ + MMIO_RING_F(prefix, 4, F_RO | f, 0, rm, d, r, w) + +static int init_generic_mmio_info(struct intel_gvt *gvt) +{ + struct drm_i915_private *dev_priv = gvt->gt->i915; + int ret; + + MMIO_RING_DFH(RING_IMR, D_ALL, 0, NULL, + intel_vgpu_reg_imr_handler); + + MMIO_DFH(SDEIMR, D_ALL, 0, NULL, intel_vgpu_reg_imr_handler); + MMIO_DFH(SDEIER, D_ALL, 0, NULL, intel_vgpu_reg_ier_handler); + MMIO_DFH(SDEIIR, D_ALL, 0, NULL, intel_vgpu_reg_iir_handler); + + MMIO_RING_DFH(RING_HWSTAM, D_ALL, 0, NULL, NULL); + + + MMIO_DH(GEN8_GAMW_ECO_DEV_RW_IA, D_BDW_PLUS, NULL, + gamw_echo_dev_rw_ia_write); + + MMIO_GM_RDR(BSD_HWS_PGA_GEN7, D_ALL, NULL, NULL); + MMIO_GM_RDR(BLT_HWS_PGA_GEN7, D_ALL, NULL, NULL); + MMIO_GM_RDR(VEBOX_HWS_PGA_GEN7, D_ALL, NULL, NULL); + +#define RING_REG(base) _MMIO((base) + 0x28) + MMIO_RING_DFH(RING_REG, D_ALL, F_CMD_ACCESS, NULL, NULL); +#undef RING_REG + +#define RING_REG(base) _MMIO((base) + 0x134) + MMIO_RING_DFH(RING_REG, D_ALL, F_CMD_ACCESS, NULL, NULL); +#undef RING_REG + +#define RING_REG(base) _MMIO((base) + 0x6c) + MMIO_RING_DFH(RING_REG, D_ALL, 0, mmio_read_from_hw, NULL); +#undef RING_REG + MMIO_DH(GEN7_SC_INSTDONE, D_BDW_PLUS, mmio_read_from_hw, NULL); + + MMIO_GM_RDR(_MMIO(0x2148), D_ALL, NULL, NULL); + MMIO_GM_RDR(CCID(RENDER_RING_BASE), D_ALL, NULL, NULL); + MMIO_GM_RDR(_MMIO(0x12198), D_ALL, NULL, NULL); + + MMIO_RING_DFH(RING_TAIL, D_ALL, 0, NULL, NULL); + MMIO_RING_DFH(RING_HEAD, D_ALL, 0, NULL, NULL); + MMIO_RING_DFH(RING_CTL, D_ALL, 0, NULL, NULL); + MMIO_RING_DFH(RING_ACTHD, D_ALL, 0, mmio_read_from_hw, NULL); + MMIO_RING_GM(RING_START, D_ALL, NULL, NULL); + + /* RING MODE */ +#define RING_REG(base) _MMIO((base) + 0x29c) + MMIO_RING_DFH(RING_REG, D_ALL, + F_MODE_MASK | F_CMD_ACCESS | F_CMD_WRITE_PATCH, NULL, + ring_mode_mmio_write); +#undef RING_REG + + MMIO_RING_DFH(RING_MI_MODE, D_ALL, F_MODE_MASK | F_CMD_ACCESS, + NULL, NULL); + MMIO_RING_DFH(RING_INSTPM, D_ALL, F_MODE_MASK | F_CMD_ACCESS, + NULL, NULL); + MMIO_RING_DFH(RING_TIMESTAMP, D_ALL, F_CMD_ACCESS, + mmio_read_from_hw, NULL); + MMIO_RING_DFH(RING_TIMESTAMP_UDW, D_ALL, F_CMD_ACCESS, + mmio_read_from_hw, NULL); + + MMIO_DFH(GEN7_GT_MODE, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(CACHE_MODE_0_GEN7, D_ALL, F_MODE_MASK | F_CMD_ACCESS, + NULL, NULL); + MMIO_DFH(CACHE_MODE_1, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(CACHE_MODE_0, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_MMIO(0x2124), D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); + + MMIO_DFH(_MMIO(0x20dc), D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_3D_CHICKEN3, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_MMIO(0x2088), D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(FF_SLICE_CS_CHICKEN2, D_ALL, + F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_MMIO(0x2470), D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(GAM_ECOCHK, D_ALL, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(GEN7_COMMON_SLICE_CHICKEN1, D_ALL, F_MODE_MASK | F_CMD_ACCESS, + NULL, NULL); + MMIO_DFH(COMMON_SLICE_CHICKEN2, D_ALL, F_MODE_MASK | F_CMD_ACCESS, + NULL, NULL); + MMIO_DFH(_MMIO(0x9030), D_ALL, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_MMIO(0x20a0), D_ALL, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_MMIO(0x2420), D_ALL, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_MMIO(0x2430), D_ALL, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_MMIO(0x2434), D_ALL, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_MMIO(0x2438), D_ALL, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_MMIO(0x243c), D_ALL, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_MMIO(0x7018), D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(HALF_SLICE_CHICKEN3, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(GEN7_HALF_SLICE_CHICKEN1, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); + + /* display */ + MMIO_DH(PIPECONF(PIPE_A), D_ALL, NULL, pipeconf_mmio_write); + MMIO_DH(PIPECONF(PIPE_B), D_ALL, NULL, pipeconf_mmio_write); + MMIO_DH(PIPECONF(PIPE_C), D_ALL, NULL, pipeconf_mmio_write); + MMIO_DH(PIPECONF(_PIPE_EDP), D_ALL, NULL, pipeconf_mmio_write); + MMIO_DH(DSPSURF(PIPE_A), D_ALL, NULL, pri_surf_mmio_write); + MMIO_DH(REG_50080(PIPE_A, PLANE_PRIMARY), D_ALL, NULL, + reg50080_mmio_write); + MMIO_DH(DSPSURF(PIPE_B), D_ALL, NULL, pri_surf_mmio_write); + MMIO_DH(REG_50080(PIPE_B, PLANE_PRIMARY), D_ALL, NULL, + reg50080_mmio_write); + MMIO_DH(DSPSURF(PIPE_C), D_ALL, NULL, pri_surf_mmio_write); + MMIO_DH(REG_50080(PIPE_C, PLANE_PRIMARY), D_ALL, NULL, + reg50080_mmio_write); + MMIO_DH(SPRSURF(PIPE_A), D_ALL, NULL, spr_surf_mmio_write); + MMIO_DH(REG_50080(PIPE_A, PLANE_SPRITE0), D_ALL, NULL, + reg50080_mmio_write); + MMIO_DH(SPRSURF(PIPE_B), D_ALL, NULL, spr_surf_mmio_write); + MMIO_DH(REG_50080(PIPE_B, PLANE_SPRITE0), D_ALL, NULL, + reg50080_mmio_write); + MMIO_DH(SPRSURF(PIPE_C), D_ALL, NULL, spr_surf_mmio_write); + MMIO_DH(REG_50080(PIPE_C, PLANE_SPRITE0), D_ALL, NULL, + reg50080_mmio_write); + + MMIO_F(PCH_GMBUS0, 4 * 4, 0, 0, 0, D_ALL, gmbus_mmio_read, + gmbus_mmio_write); + MMIO_F(PCH_GPIO_BASE, 6 * 4, F_UNALIGN, 0, 0, D_ALL, NULL, NULL); + + MMIO_F(_MMIO(_PCH_DPB_AUX_CH_CTL), 6 * 4, 0, 0, 0, D_PRE_SKL, NULL, + dp_aux_ch_ctl_mmio_write); + MMIO_F(_MMIO(_PCH_DPC_AUX_CH_CTL), 6 * 4, 0, 0, 0, D_PRE_SKL, NULL, + dp_aux_ch_ctl_mmio_write); + MMIO_F(_MMIO(_PCH_DPD_AUX_CH_CTL), 6 * 4, 0, 0, 0, D_PRE_SKL, NULL, + dp_aux_ch_ctl_mmio_write); + + MMIO_DH(PCH_ADPA, D_PRE_SKL, NULL, pch_adpa_mmio_write); + + MMIO_DH(_MMIO(_PCH_TRANSACONF), D_ALL, NULL, transconf_mmio_write); + MMIO_DH(_MMIO(_PCH_TRANSBCONF), D_ALL, NULL, transconf_mmio_write); + + MMIO_DH(FDI_RX_IIR(PIPE_A), D_ALL, NULL, fdi_rx_iir_mmio_write); + MMIO_DH(FDI_RX_IIR(PIPE_B), D_ALL, NULL, fdi_rx_iir_mmio_write); + MMIO_DH(FDI_RX_IIR(PIPE_C), D_ALL, NULL, fdi_rx_iir_mmio_write); + MMIO_DH(FDI_RX_IMR(PIPE_A), D_ALL, NULL, update_fdi_rx_iir_status); + MMIO_DH(FDI_RX_IMR(PIPE_B), D_ALL, NULL, update_fdi_rx_iir_status); + MMIO_DH(FDI_RX_IMR(PIPE_C), D_ALL, NULL, update_fdi_rx_iir_status); + MMIO_DH(FDI_RX_CTL(PIPE_A), D_ALL, NULL, update_fdi_rx_iir_status); + MMIO_DH(FDI_RX_CTL(PIPE_B), D_ALL, NULL, update_fdi_rx_iir_status); + MMIO_DH(FDI_RX_CTL(PIPE_C), D_ALL, NULL, update_fdi_rx_iir_status); + MMIO_DH(PCH_PP_CONTROL, D_ALL, NULL, pch_pp_control_mmio_write); + MMIO_DH(_MMIO(0xe651c), D_ALL, dpy_reg_mmio_read, NULL); + MMIO_DH(_MMIO(0xe661c), D_ALL, dpy_reg_mmio_read, NULL); + MMIO_DH(_MMIO(0xe671c), D_ALL, dpy_reg_mmio_read, NULL); + MMIO_DH(_MMIO(0xe681c), D_ALL, dpy_reg_mmio_read, NULL); + MMIO_DH(_MMIO(0xe6c04), D_ALL, dpy_reg_mmio_read, NULL); + MMIO_DH(_MMIO(0xe6e1c), D_ALL, dpy_reg_mmio_read, NULL); + + MMIO_RO(PCH_PORT_HOTPLUG, D_ALL, 0, + PORTA_HOTPLUG_STATUS_MASK + | PORTB_HOTPLUG_STATUS_MASK + | PORTC_HOTPLUG_STATUS_MASK + | PORTD_HOTPLUG_STATUS_MASK, + NULL, NULL); + + MMIO_DH(LCPLL_CTL, D_ALL, NULL, lcpll_ctl_mmio_write); + MMIO_DH(SOUTH_CHICKEN2, D_ALL, NULL, south_chicken2_mmio_write); + MMIO_DH(SFUSE_STRAP, D_ALL, NULL, NULL); + MMIO_DH(SBI_DATA, D_ALL, sbi_data_mmio_read, NULL); + MMIO_DH(SBI_CTL_STAT, D_ALL, NULL, sbi_ctl_mmio_write); + + MMIO_F(_MMIO(_DPA_AUX_CH_CTL), 6 * 4, 0, 0, 0, D_ALL, NULL, + dp_aux_ch_ctl_mmio_write); + + MMIO_DH(DDI_BUF_CTL(PORT_A), D_ALL, NULL, ddi_buf_ctl_mmio_write); + MMIO_DH(DDI_BUF_CTL(PORT_B), D_ALL, NULL, ddi_buf_ctl_mmio_write); + MMIO_DH(DDI_BUF_CTL(PORT_C), D_ALL, NULL, ddi_buf_ctl_mmio_write); + MMIO_DH(DDI_BUF_CTL(PORT_D), D_ALL, NULL, ddi_buf_ctl_mmio_write); + MMIO_DH(DDI_BUF_CTL(PORT_E), D_ALL, NULL, ddi_buf_ctl_mmio_write); + + MMIO_DH(DP_TP_CTL(PORT_A), D_ALL, NULL, dp_tp_ctl_mmio_write); + MMIO_DH(DP_TP_CTL(PORT_B), D_ALL, NULL, dp_tp_ctl_mmio_write); + MMIO_DH(DP_TP_CTL(PORT_C), D_ALL, NULL, dp_tp_ctl_mmio_write); + MMIO_DH(DP_TP_CTL(PORT_D), D_ALL, NULL, dp_tp_ctl_mmio_write); + MMIO_DH(DP_TP_CTL(PORT_E), D_ALL, NULL, dp_tp_ctl_mmio_write); + + MMIO_DH(DP_TP_STATUS(PORT_A), D_ALL, NULL, dp_tp_status_mmio_write); + MMIO_DH(DP_TP_STATUS(PORT_B), D_ALL, NULL, dp_tp_status_mmio_write); + MMIO_DH(DP_TP_STATUS(PORT_C), D_ALL, NULL, dp_tp_status_mmio_write); + MMIO_DH(DP_TP_STATUS(PORT_D), D_ALL, NULL, dp_tp_status_mmio_write); + MMIO_DH(DP_TP_STATUS(PORT_E), D_ALL, NULL, NULL); + + MMIO_DH(_MMIO(_TRANS_DDI_FUNC_CTL_A), D_ALL, NULL, NULL); + MMIO_DH(_MMIO(_TRANS_DDI_FUNC_CTL_B), D_ALL, NULL, NULL); + MMIO_DH(_MMIO(_TRANS_DDI_FUNC_CTL_C), D_ALL, NULL, NULL); + MMIO_DH(_MMIO(_TRANS_DDI_FUNC_CTL_EDP), D_ALL, NULL, NULL); + + MMIO_DH(FORCEWAKE, D_ALL, NULL, NULL); + MMIO_DFH(GTFIFODBG, D_ALL, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(GTFIFOCTL, D_ALL, F_CMD_ACCESS, NULL, NULL); + MMIO_DH(FORCEWAKE_MT, D_PRE_SKL, NULL, mul_force_wake_write); + MMIO_DH(FORCEWAKE_ACK_HSW, D_BDW, NULL, NULL); + MMIO_DH(GEN6_RC_CONTROL, D_ALL, NULL, NULL); + MMIO_DH(GEN6_RC_STATE, D_ALL, NULL, NULL); + MMIO_DH(HSW_PWR_WELL_CTL1, D_BDW, NULL, power_well_ctl_mmio_write); + MMIO_DH(HSW_PWR_WELL_CTL2, D_BDW, NULL, power_well_ctl_mmio_write); + MMIO_DH(HSW_PWR_WELL_CTL3, D_BDW, NULL, power_well_ctl_mmio_write); + MMIO_DH(HSW_PWR_WELL_CTL4, D_BDW, NULL, power_well_ctl_mmio_write); + MMIO_DH(HSW_PWR_WELL_CTL5, D_BDW, NULL, power_well_ctl_mmio_write); + MMIO_DH(HSW_PWR_WELL_CTL6, D_BDW, NULL, power_well_ctl_mmio_write); + + MMIO_DH(GEN6_GDRST, D_ALL, NULL, gdrst_mmio_write); + MMIO_F(FENCE_REG_GEN6_LO(0), 0x80, 0, 0, 0, D_ALL, fence_mmio_read, fence_mmio_write); + MMIO_DH(CPU_VGACNTRL, D_ALL, NULL, vga_control_mmio_write); + + MMIO_DH(GEN7_ERR_INT, D_ALL, NULL, NULL); + MMIO_DH(GFX_FLSH_CNTL_GEN6, D_ALL, NULL, NULL); + + MMIO_DH(GEN6_MBCTL, D_ALL, NULL, mbctl_write); + MMIO_DFH(GEN7_UCGCTL4, D_ALL, F_CMD_ACCESS, NULL, NULL); + + MMIO_DH(FPGA_DBG, D_ALL, NULL, fpga_dbg_mmio_write); + MMIO_DFH(_MMIO(0x215c), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_MMIO(0x2178), D_ALL, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_MMIO(0x217c), D_ALL, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_MMIO(0x12178), D_ALL, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_MMIO(0x1217c), D_ALL, F_CMD_ACCESS, NULL, NULL); + + MMIO_F(_MMIO(0x2290), 8, F_CMD_ACCESS, 0, 0, D_BDW_PLUS, NULL, NULL); + MMIO_F(_MMIO(0x5200), 32, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL); + MMIO_F(_MMIO(0x5240), 32, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL); + MMIO_F(_MMIO(0x5280), 16, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL); + + MMIO_DFH(_MMIO(0x1c17c), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_MMIO(0x1c178), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(BCS_SWCTRL, D_ALL, F_CMD_ACCESS, NULL, NULL); + + MMIO_F(HS_INVOCATION_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL); + MMIO_F(DS_INVOCATION_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL); + MMIO_F(IA_VERTICES_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL); + MMIO_F(IA_PRIMITIVES_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL); + MMIO_F(VS_INVOCATION_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL); + MMIO_F(GS_INVOCATION_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL); + MMIO_F(GS_PRIMITIVES_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL); + MMIO_F(CL_INVOCATION_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL); + MMIO_F(CL_PRIMITIVES_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL); + MMIO_F(PS_INVOCATION_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL); + MMIO_F(PS_DEPTH_COUNT, 8, F_CMD_ACCESS, 0, 0, D_ALL, NULL, NULL); + MMIO_DH(_MMIO(0x4260), D_BDW_PLUS, NULL, gvt_reg_tlb_control_handler); + MMIO_DH(_MMIO(0x4264), D_BDW_PLUS, NULL, gvt_reg_tlb_control_handler); + MMIO_DH(_MMIO(0x4268), D_BDW_PLUS, NULL, gvt_reg_tlb_control_handler); + MMIO_DH(_MMIO(0x426c), D_BDW_PLUS, NULL, gvt_reg_tlb_control_handler); + MMIO_DH(_MMIO(0x4270), D_BDW_PLUS, NULL, gvt_reg_tlb_control_handler); + MMIO_DFH(_MMIO(0x4094), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + + MMIO_DFH(ARB_MODE, D_ALL, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); + MMIO_RING_GM(RING_BBADDR, D_ALL, NULL, NULL); + MMIO_DFH(_MMIO(0x2220), D_ALL, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_MMIO(0x12220), D_ALL, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_MMIO(0x22220), D_ALL, F_CMD_ACCESS, NULL, NULL); + MMIO_RING_DFH(RING_SYNC_1, D_ALL, F_CMD_ACCESS, NULL, NULL); + MMIO_RING_DFH(RING_SYNC_0, D_ALL, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_MMIO(0x22178), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_MMIO(0x1a178), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_MMIO(0x1a17c), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_MMIO(0x2217c), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + + MMIO_DH(EDP_PSR_IMR, D_BDW_PLUS, NULL, edp_psr_imr_iir_write); + MMIO_DH(EDP_PSR_IIR, D_BDW_PLUS, NULL, edp_psr_imr_iir_write); + MMIO_DH(GUC_STATUS, D_ALL, guc_status_read, NULL); + + return 0; +} + +static int init_bdw_mmio_info(struct intel_gvt *gvt) +{ + int ret; + + MMIO_DH(GEN8_GT_IMR(0), D_BDW_PLUS, NULL, intel_vgpu_reg_imr_handler); + MMIO_DH(GEN8_GT_IER(0), D_BDW_PLUS, NULL, intel_vgpu_reg_ier_handler); + MMIO_DH(GEN8_GT_IIR(0), D_BDW_PLUS, NULL, intel_vgpu_reg_iir_handler); + + MMIO_DH(GEN8_GT_IMR(1), D_BDW_PLUS, NULL, intel_vgpu_reg_imr_handler); + MMIO_DH(GEN8_GT_IER(1), D_BDW_PLUS, NULL, intel_vgpu_reg_ier_handler); + MMIO_DH(GEN8_GT_IIR(1), D_BDW_PLUS, NULL, intel_vgpu_reg_iir_handler); + + MMIO_DH(GEN8_GT_IMR(2), D_BDW_PLUS, NULL, intel_vgpu_reg_imr_handler); + MMIO_DH(GEN8_GT_IER(2), D_BDW_PLUS, NULL, intel_vgpu_reg_ier_handler); + MMIO_DH(GEN8_GT_IIR(2), D_BDW_PLUS, NULL, intel_vgpu_reg_iir_handler); + + MMIO_DH(GEN8_GT_IMR(3), D_BDW_PLUS, NULL, intel_vgpu_reg_imr_handler); + MMIO_DH(GEN8_GT_IER(3), D_BDW_PLUS, NULL, intel_vgpu_reg_ier_handler); + MMIO_DH(GEN8_GT_IIR(3), D_BDW_PLUS, NULL, intel_vgpu_reg_iir_handler); + + MMIO_DH(GEN8_DE_PIPE_IMR(PIPE_A), D_BDW_PLUS, NULL, + intel_vgpu_reg_imr_handler); + MMIO_DH(GEN8_DE_PIPE_IER(PIPE_A), D_BDW_PLUS, NULL, + intel_vgpu_reg_ier_handler); + MMIO_DH(GEN8_DE_PIPE_IIR(PIPE_A), D_BDW_PLUS, NULL, + intel_vgpu_reg_iir_handler); + + MMIO_DH(GEN8_DE_PIPE_IMR(PIPE_B), D_BDW_PLUS, NULL, + intel_vgpu_reg_imr_handler); + MMIO_DH(GEN8_DE_PIPE_IER(PIPE_B), D_BDW_PLUS, NULL, + intel_vgpu_reg_ier_handler); + MMIO_DH(GEN8_DE_PIPE_IIR(PIPE_B), D_BDW_PLUS, NULL, + intel_vgpu_reg_iir_handler); + + MMIO_DH(GEN8_DE_PIPE_IMR(PIPE_C), D_BDW_PLUS, NULL, + intel_vgpu_reg_imr_handler); + MMIO_DH(GEN8_DE_PIPE_IER(PIPE_C), D_BDW_PLUS, NULL, + intel_vgpu_reg_ier_handler); + MMIO_DH(GEN8_DE_PIPE_IIR(PIPE_C), D_BDW_PLUS, NULL, + intel_vgpu_reg_iir_handler); + + MMIO_DH(GEN8_DE_PORT_IMR, D_BDW_PLUS, NULL, intel_vgpu_reg_imr_handler); + MMIO_DH(GEN8_DE_PORT_IER, D_BDW_PLUS, NULL, intel_vgpu_reg_ier_handler); + MMIO_DH(GEN8_DE_PORT_IIR, D_BDW_PLUS, NULL, intel_vgpu_reg_iir_handler); + + MMIO_DH(GEN8_DE_MISC_IMR, D_BDW_PLUS, NULL, intel_vgpu_reg_imr_handler); + MMIO_DH(GEN8_DE_MISC_IER, D_BDW_PLUS, NULL, intel_vgpu_reg_ier_handler); + MMIO_DH(GEN8_DE_MISC_IIR, D_BDW_PLUS, NULL, intel_vgpu_reg_iir_handler); + + MMIO_DH(GEN8_PCU_IMR, D_BDW_PLUS, NULL, intel_vgpu_reg_imr_handler); + MMIO_DH(GEN8_PCU_IER, D_BDW_PLUS, NULL, intel_vgpu_reg_ier_handler); + MMIO_DH(GEN8_PCU_IIR, D_BDW_PLUS, NULL, intel_vgpu_reg_iir_handler); + + MMIO_DH(GEN8_MASTER_IRQ, D_BDW_PLUS, NULL, + intel_vgpu_reg_master_irq_handler); + + MMIO_RING_DFH(RING_ACTHD_UDW, D_BDW_PLUS, 0, + mmio_read_from_hw, NULL); + +#define RING_REG(base) _MMIO((base) + 0xd0) + MMIO_RING_F(RING_REG, 4, F_RO, 0, + ~_MASKED_BIT_ENABLE(RESET_CTL_REQUEST_RESET), D_BDW_PLUS, NULL, + ring_reset_ctl_write); +#undef RING_REG + +#define RING_REG(base) _MMIO((base) + 0x230) + MMIO_RING_DFH(RING_REG, D_BDW_PLUS, 0, NULL, elsp_mmio_write); +#undef RING_REG + +#define RING_REG(base) _MMIO((base) + 0x234) + MMIO_RING_F(RING_REG, 8, F_RO, 0, ~0, D_BDW_PLUS, + NULL, NULL); +#undef RING_REG + +#define RING_REG(base) _MMIO((base) + 0x244) + MMIO_RING_DFH(RING_REG, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); +#undef RING_REG + +#define RING_REG(base) _MMIO((base) + 0x370) + MMIO_RING_F(RING_REG, 48, F_RO, 0, ~0, D_BDW_PLUS, NULL, NULL); +#undef RING_REG + +#define RING_REG(base) _MMIO((base) + 0x3a0) + MMIO_RING_DFH(RING_REG, D_BDW_PLUS, F_MODE_MASK, NULL, NULL); +#undef RING_REG + + MMIO_DH(GEN6_PCODE_MAILBOX, D_BDW_PLUS, NULL, mailbox_write); + +#define RING_REG(base) _MMIO((base) + 0x270) + MMIO_RING_F(RING_REG, 32, F_CMD_ACCESS, 0, 0, D_BDW_PLUS, NULL, NULL); +#undef RING_REG + + MMIO_RING_GM(RING_HWS_PGA, D_BDW_PLUS, NULL, hws_pga_write); + + MMIO_DFH(HDC_CHICKEN0, D_BDW_PLUS, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); + + MMIO_DFH(GEN8_ROW_CHICKEN, D_BDW_PLUS, F_MODE_MASK | F_CMD_ACCESS, + NULL, NULL); + MMIO_DFH(GEN7_ROW_CHICKEN2, D_BDW_PLUS, F_MODE_MASK | F_CMD_ACCESS, + NULL, NULL); + MMIO_DFH(GEN8_UCGCTL6, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + + MMIO_DFH(_MMIO(0xb1f0), D_BDW, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_MMIO(0xb1c0), D_BDW, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(GEN8_L3SQCREG4, D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_MMIO(0xb100), D_BDW, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_MMIO(0xb10c), D_BDW, F_CMD_ACCESS, NULL, NULL); + + MMIO_F(_MMIO(0x24d0), 48, F_CMD_ACCESS | F_CMD_WRITE_PATCH, 0, 0, + D_BDW_PLUS, NULL, force_nonpriv_write); + + MMIO_DFH(_MMIO(0x83a4), D_BDW, F_CMD_ACCESS, NULL, NULL); + + MMIO_DFH(_MMIO(0x8430), D_BDW, F_CMD_ACCESS, NULL, NULL); + + MMIO_DFH(_MMIO(0xe194), D_BDW_PLUS, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_MMIO(0xe188), D_BDW_PLUS, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(HALF_SLICE_CHICKEN2, D_BDW_PLUS, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_MMIO(0x2580), D_BDW_PLUS, F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); + + MMIO_DFH(_MMIO(0x2248), D_BDW, F_CMD_ACCESS, NULL, NULL); + + MMIO_DFH(_MMIO(0xe220), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_MMIO(0xe230), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_MMIO(0xe240), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_MMIO(0xe260), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_MMIO(0xe270), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_MMIO(0xe280), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_MMIO(0xe2a0), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_MMIO(0xe2b0), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_MMIO(0xe2c0), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_MMIO(0x21f0), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + return 0; +} + +static int init_skl_mmio_info(struct intel_gvt *gvt) +{ + struct drm_i915_private *dev_priv = gvt->gt->i915; + int ret; + + MMIO_DH(FORCEWAKE_RENDER_GEN9, D_SKL_PLUS, NULL, mul_force_wake_write); + MMIO_DH(FORCEWAKE_ACK_RENDER_GEN9, D_SKL_PLUS, NULL, NULL); + MMIO_DH(FORCEWAKE_GT_GEN9, D_SKL_PLUS, NULL, mul_force_wake_write); + MMIO_DH(FORCEWAKE_ACK_GT_GEN9, D_SKL_PLUS, NULL, NULL); + MMIO_DH(FORCEWAKE_MEDIA_GEN9, D_SKL_PLUS, NULL, mul_force_wake_write); + MMIO_DH(FORCEWAKE_ACK_MEDIA_GEN9, D_SKL_PLUS, NULL, NULL); + + MMIO_F(DP_AUX_CH_CTL(AUX_CH_B), 6 * 4, 0, 0, 0, D_SKL_PLUS, NULL, + dp_aux_ch_ctl_mmio_write); + MMIO_F(DP_AUX_CH_CTL(AUX_CH_C), 6 * 4, 0, 0, 0, D_SKL_PLUS, NULL, + dp_aux_ch_ctl_mmio_write); + MMIO_F(DP_AUX_CH_CTL(AUX_CH_D), 6 * 4, 0, 0, 0, D_SKL_PLUS, NULL, + dp_aux_ch_ctl_mmio_write); + + MMIO_DH(HSW_PWR_WELL_CTL2, D_SKL_PLUS, NULL, skl_power_well_ctl_write); + + MMIO_DH(DBUF_CTL_S(0), D_SKL_PLUS, NULL, gen9_dbuf_ctl_mmio_write); + + MMIO_DFH(GEN9_GAMT_ECO_REG_RW_IA, D_SKL_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(MMCD_MISC_CTRL, D_SKL_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DH(CHICKEN_PAR1_1, D_SKL_PLUS, NULL, NULL); + MMIO_DH(LCPLL1_CTL, D_SKL_PLUS, NULL, skl_lcpll_write); + MMIO_DH(LCPLL2_CTL, D_SKL_PLUS, NULL, skl_lcpll_write); + MMIO_DH(DPLL_STATUS, D_SKL_PLUS, dpll_status_read, NULL); + + MMIO_DH(SKL_PS_WIN_POS(PIPE_A, 0), D_SKL_PLUS, NULL, pf_write); + MMIO_DH(SKL_PS_WIN_POS(PIPE_A, 1), D_SKL_PLUS, NULL, pf_write); + MMIO_DH(SKL_PS_WIN_POS(PIPE_B, 0), D_SKL_PLUS, NULL, pf_write); + MMIO_DH(SKL_PS_WIN_POS(PIPE_B, 1), D_SKL_PLUS, NULL, pf_write); + MMIO_DH(SKL_PS_WIN_POS(PIPE_C, 0), D_SKL_PLUS, NULL, pf_write); + MMIO_DH(SKL_PS_WIN_POS(PIPE_C, 1), D_SKL_PLUS, NULL, pf_write); + + MMIO_DH(SKL_PS_WIN_SZ(PIPE_A, 0), D_SKL_PLUS, NULL, pf_write); + MMIO_DH(SKL_PS_WIN_SZ(PIPE_A, 1), D_SKL_PLUS, NULL, pf_write); + MMIO_DH(SKL_PS_WIN_SZ(PIPE_B, 0), D_SKL_PLUS, NULL, pf_write); + MMIO_DH(SKL_PS_WIN_SZ(PIPE_B, 1), D_SKL_PLUS, NULL, pf_write); + MMIO_DH(SKL_PS_WIN_SZ(PIPE_C, 0), D_SKL_PLUS, NULL, pf_write); + MMIO_DH(SKL_PS_WIN_SZ(PIPE_C, 1), D_SKL_PLUS, NULL, pf_write); + + MMIO_DH(SKL_PS_CTRL(PIPE_A, 0), D_SKL_PLUS, NULL, pf_write); + MMIO_DH(SKL_PS_CTRL(PIPE_A, 1), D_SKL_PLUS, NULL, pf_write); + MMIO_DH(SKL_PS_CTRL(PIPE_B, 0), D_SKL_PLUS, NULL, pf_write); + MMIO_DH(SKL_PS_CTRL(PIPE_B, 1), D_SKL_PLUS, NULL, pf_write); + MMIO_DH(SKL_PS_CTRL(PIPE_C, 0), D_SKL_PLUS, NULL, pf_write); + MMIO_DH(SKL_PS_CTRL(PIPE_C, 1), D_SKL_PLUS, NULL, pf_write); + + MMIO_DH(PLANE_BUF_CFG(PIPE_A, 0), D_SKL_PLUS, NULL, NULL); + MMIO_DH(PLANE_BUF_CFG(PIPE_A, 1), D_SKL_PLUS, NULL, NULL); + MMIO_DH(PLANE_BUF_CFG(PIPE_A, 2), D_SKL_PLUS, NULL, NULL); + MMIO_DH(PLANE_BUF_CFG(PIPE_A, 3), D_SKL_PLUS, NULL, NULL); + + MMIO_DH(PLANE_BUF_CFG(PIPE_B, 0), D_SKL_PLUS, NULL, NULL); + MMIO_DH(PLANE_BUF_CFG(PIPE_B, 1), D_SKL_PLUS, NULL, NULL); + MMIO_DH(PLANE_BUF_CFG(PIPE_B, 2), D_SKL_PLUS, NULL, NULL); + MMIO_DH(PLANE_BUF_CFG(PIPE_B, 3), D_SKL_PLUS, NULL, NULL); + + MMIO_DH(PLANE_BUF_CFG(PIPE_C, 0), D_SKL_PLUS, NULL, NULL); + MMIO_DH(PLANE_BUF_CFG(PIPE_C, 1), D_SKL_PLUS, NULL, NULL); + MMIO_DH(PLANE_BUF_CFG(PIPE_C, 2), D_SKL_PLUS, NULL, NULL); + MMIO_DH(PLANE_BUF_CFG(PIPE_C, 3), D_SKL_PLUS, NULL, NULL); + + MMIO_DH(CUR_BUF_CFG(PIPE_A), D_SKL_PLUS, NULL, NULL); + MMIO_DH(CUR_BUF_CFG(PIPE_B), D_SKL_PLUS, NULL, NULL); + MMIO_DH(CUR_BUF_CFG(PIPE_C), D_SKL_PLUS, NULL, NULL); + + MMIO_DH(PLANE_WM_TRANS(PIPE_A, 0), D_SKL_PLUS, NULL, NULL); + MMIO_DH(PLANE_WM_TRANS(PIPE_A, 1), D_SKL_PLUS, NULL, NULL); + MMIO_DH(PLANE_WM_TRANS(PIPE_A, 2), D_SKL_PLUS, NULL, NULL); + + MMIO_DH(PLANE_WM_TRANS(PIPE_B, 0), D_SKL_PLUS, NULL, NULL); + MMIO_DH(PLANE_WM_TRANS(PIPE_B, 1), D_SKL_PLUS, NULL, NULL); + MMIO_DH(PLANE_WM_TRANS(PIPE_B, 2), D_SKL_PLUS, NULL, NULL); + + MMIO_DH(PLANE_WM_TRANS(PIPE_C, 0), D_SKL_PLUS, NULL, NULL); + MMIO_DH(PLANE_WM_TRANS(PIPE_C, 1), D_SKL_PLUS, NULL, NULL); + MMIO_DH(PLANE_WM_TRANS(PIPE_C, 2), D_SKL_PLUS, NULL, NULL); + + MMIO_DH(CUR_WM_TRANS(PIPE_A), D_SKL_PLUS, NULL, NULL); + MMIO_DH(CUR_WM_TRANS(PIPE_B), D_SKL_PLUS, NULL, NULL); + MMIO_DH(CUR_WM_TRANS(PIPE_C), D_SKL_PLUS, NULL, NULL); + + MMIO_DH(PLANE_NV12_BUF_CFG(PIPE_A, 0), D_SKL_PLUS, NULL, NULL); + MMIO_DH(PLANE_NV12_BUF_CFG(PIPE_A, 1), D_SKL_PLUS, NULL, NULL); + MMIO_DH(PLANE_NV12_BUF_CFG(PIPE_A, 2), D_SKL_PLUS, NULL, NULL); + MMIO_DH(PLANE_NV12_BUF_CFG(PIPE_A, 3), D_SKL_PLUS, NULL, NULL); + + MMIO_DH(PLANE_NV12_BUF_CFG(PIPE_B, 0), D_SKL_PLUS, NULL, NULL); + MMIO_DH(PLANE_NV12_BUF_CFG(PIPE_B, 1), D_SKL_PLUS, NULL, NULL); + MMIO_DH(PLANE_NV12_BUF_CFG(PIPE_B, 2), D_SKL_PLUS, NULL, NULL); + MMIO_DH(PLANE_NV12_BUF_CFG(PIPE_B, 3), D_SKL_PLUS, NULL, NULL); + + MMIO_DH(PLANE_NV12_BUF_CFG(PIPE_C, 0), D_SKL_PLUS, NULL, NULL); + MMIO_DH(PLANE_NV12_BUF_CFG(PIPE_C, 1), D_SKL_PLUS, NULL, NULL); + MMIO_DH(PLANE_NV12_BUF_CFG(PIPE_C, 2), D_SKL_PLUS, NULL, NULL); + MMIO_DH(PLANE_NV12_BUF_CFG(PIPE_C, 3), D_SKL_PLUS, NULL, NULL); + + MMIO_DH(_MMIO(_REG_701C0(PIPE_A, 1)), D_SKL_PLUS, NULL, NULL); + MMIO_DH(_MMIO(_REG_701C0(PIPE_A, 2)), D_SKL_PLUS, NULL, NULL); + MMIO_DH(_MMIO(_REG_701C0(PIPE_A, 3)), D_SKL_PLUS, NULL, NULL); + MMIO_DH(_MMIO(_REG_701C0(PIPE_A, 4)), D_SKL_PLUS, NULL, NULL); + + MMIO_DH(_MMIO(_REG_701C0(PIPE_B, 1)), D_SKL_PLUS, NULL, NULL); + MMIO_DH(_MMIO(_REG_701C0(PIPE_B, 2)), D_SKL_PLUS, NULL, NULL); + MMIO_DH(_MMIO(_REG_701C0(PIPE_B, 3)), D_SKL_PLUS, NULL, NULL); + MMIO_DH(_MMIO(_REG_701C0(PIPE_B, 4)), D_SKL_PLUS, NULL, NULL); + + MMIO_DH(_MMIO(_REG_701C0(PIPE_C, 1)), D_SKL_PLUS, NULL, NULL); + MMIO_DH(_MMIO(_REG_701C0(PIPE_C, 2)), D_SKL_PLUS, NULL, NULL); + MMIO_DH(_MMIO(_REG_701C0(PIPE_C, 3)), D_SKL_PLUS, NULL, NULL); + MMIO_DH(_MMIO(_REG_701C0(PIPE_C, 4)), D_SKL_PLUS, NULL, NULL); + + MMIO_DH(_MMIO(_REG_701C4(PIPE_A, 1)), D_SKL_PLUS, NULL, NULL); + MMIO_DH(_MMIO(_REG_701C4(PIPE_A, 2)), D_SKL_PLUS, NULL, NULL); + MMIO_DH(_MMIO(_REG_701C4(PIPE_A, 3)), D_SKL_PLUS, NULL, NULL); + MMIO_DH(_MMIO(_REG_701C4(PIPE_A, 4)), D_SKL_PLUS, NULL, NULL); + + MMIO_DH(_MMIO(_REG_701C4(PIPE_B, 1)), D_SKL_PLUS, NULL, NULL); + MMIO_DH(_MMIO(_REG_701C4(PIPE_B, 2)), D_SKL_PLUS, NULL, NULL); + MMIO_DH(_MMIO(_REG_701C4(PIPE_B, 3)), D_SKL_PLUS, NULL, NULL); + MMIO_DH(_MMIO(_REG_701C4(PIPE_B, 4)), D_SKL_PLUS, NULL, NULL); + + MMIO_DH(_MMIO(_REG_701C4(PIPE_C, 1)), D_SKL_PLUS, NULL, NULL); + MMIO_DH(_MMIO(_REG_701C4(PIPE_C, 2)), D_SKL_PLUS, NULL, NULL); + MMIO_DH(_MMIO(_REG_701C4(PIPE_C, 3)), D_SKL_PLUS, NULL, NULL); + MMIO_DH(_MMIO(_REG_701C4(PIPE_C, 4)), D_SKL_PLUS, NULL, NULL); + + MMIO_DFH(BDW_SCRATCH1, D_SKL_PLUS, F_CMD_ACCESS, NULL, NULL); + + MMIO_F(GEN9_GFX_MOCS(0), 0x7f8, F_CMD_ACCESS, 0, 0, D_SKL_PLUS, + NULL, NULL); + MMIO_F(GEN7_L3CNTLREG2, 0x80, F_CMD_ACCESS, 0, 0, D_SKL_PLUS, + NULL, NULL); + + MMIO_DFH(GEN7_FF_SLICE_CS_CHICKEN1, D_SKL_PLUS, + F_MODE_MASK | F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(GEN9_CS_DEBUG_MODE1, D_SKL_PLUS, F_MODE_MASK | F_CMD_ACCESS, + NULL, NULL); + + /* TRTT */ + MMIO_DFH(TRVATTL3PTRDW(0), D_SKL_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(TRVATTL3PTRDW(1), D_SKL_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(TRVATTL3PTRDW(2), D_SKL_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(TRVATTL3PTRDW(3), D_SKL_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(TRVADR, D_SKL_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(TRTTE, D_SKL_PLUS, F_CMD_ACCESS | F_PM_SAVE, + NULL, gen9_trtte_write); + MMIO_DFH(_MMIO(0x4dfc), D_SKL_PLUS, F_PM_SAVE, + NULL, gen9_trtt_chicken_write); + + MMIO_DFH(GEN8_GARBCNTL, D_SKL_PLUS, F_CMD_ACCESS, NULL, NULL); + MMIO_DH(DMA_CTRL, D_SKL_PLUS, NULL, dma_ctrl_write); + +#define CSFE_CHICKEN1_REG(base) _MMIO((base) + 0xD4) + MMIO_RING_DFH(CSFE_CHICKEN1_REG, D_SKL_PLUS, F_MODE_MASK | F_CMD_ACCESS, + NULL, csfe_chicken1_mmio_write); +#undef CSFE_CHICKEN1_REG + MMIO_DFH(GEN8_HDC_CHICKEN1, D_SKL_PLUS, F_MODE_MASK | F_CMD_ACCESS, + NULL, NULL); + MMIO_DFH(GEN9_WM_CHICKEN3, D_SKL_PLUS, F_MODE_MASK | F_CMD_ACCESS, + NULL, NULL); + + MMIO_DFH(GAMT_CHKN_BIT_REG, D_KBL | D_CFL, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_MMIO(0xe4cc), D_BDW_PLUS, F_CMD_ACCESS, NULL, NULL); + + return 0; +} + +static int init_bxt_mmio_info(struct intel_gvt *gvt) +{ + int ret; + + MMIO_DH(BXT_P_CR_GT_DISP_PWRON, D_BXT, NULL, bxt_gt_disp_pwron_write); + MMIO_DH(BXT_PHY_CTL_FAMILY(DPIO_PHY0), D_BXT, + NULL, bxt_phy_ctl_family_write); + MMIO_DH(BXT_PHY_CTL_FAMILY(DPIO_PHY1), D_BXT, + NULL, bxt_phy_ctl_family_write); + MMIO_DH(BXT_PORT_PLL_ENABLE(PORT_A), D_BXT, + NULL, bxt_port_pll_enable_write); + MMIO_DH(BXT_PORT_PLL_ENABLE(PORT_B), D_BXT, + NULL, bxt_port_pll_enable_write); + MMIO_DH(BXT_PORT_PLL_ENABLE(PORT_C), D_BXT, NULL, + bxt_port_pll_enable_write); + + MMIO_DH(BXT_PORT_PCS_DW12_GRP(DPIO_PHY0, DPIO_CH0), D_BXT, + NULL, bxt_pcs_dw12_grp_write); + MMIO_DH(BXT_PORT_TX_DW3_LN0(DPIO_PHY0, DPIO_CH0), D_BXT, + bxt_port_tx_dw3_read, NULL); + MMIO_DH(BXT_PORT_PCS_DW12_GRP(DPIO_PHY0, DPIO_CH1), D_BXT, + NULL, bxt_pcs_dw12_grp_write); + MMIO_DH(BXT_PORT_TX_DW3_LN0(DPIO_PHY0, DPIO_CH1), D_BXT, + bxt_port_tx_dw3_read, NULL); + MMIO_DH(BXT_PORT_PCS_DW12_GRP(DPIO_PHY1, DPIO_CH0), D_BXT, + NULL, bxt_pcs_dw12_grp_write); + MMIO_DH(BXT_PORT_TX_DW3_LN0(DPIO_PHY1, DPIO_CH0), D_BXT, + bxt_port_tx_dw3_read, NULL); + MMIO_DH(BXT_DE_PLL_ENABLE, D_BXT, NULL, bxt_de_pll_enable_write); + MMIO_DFH(GEN8_L3SQCREG1, D_BXT, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(GEN8_L3CNTLREG, D_BXT, F_CMD_ACCESS, NULL, NULL); + MMIO_DFH(_MMIO(0x20D8), D_BXT, F_CMD_ACCESS, NULL, NULL); + MMIO_F(GEN8_RING_CS_GPR(RENDER_RING_BASE, 0), 0x40, F_CMD_ACCESS, + 0, 0, D_BXT, NULL, NULL); + MMIO_F(GEN8_RING_CS_GPR(GEN6_BSD_RING_BASE, 0), 0x40, F_CMD_ACCESS, + 0, 0, D_BXT, NULL, NULL); + MMIO_F(GEN8_RING_CS_GPR(BLT_RING_BASE, 0), 0x40, F_CMD_ACCESS, + 0, 0, D_BXT, NULL, NULL); + MMIO_F(GEN8_RING_CS_GPR(VEBOX_RING_BASE, 0), 0x40, F_CMD_ACCESS, + 0, 0, D_BXT, NULL, NULL); + + MMIO_DFH(GEN9_CTX_PREEMPT_REG, D_BXT, F_CMD_ACCESS, NULL, NULL); + + MMIO_DH(GEN8_PRIVATE_PAT_LO, D_BXT, NULL, bxt_ppat_low_write); + + return 0; +} + +static struct gvt_mmio_block *find_mmio_block(struct intel_gvt *gvt, + unsigned int offset) +{ + struct gvt_mmio_block *block = gvt->mmio.mmio_block; + int num = gvt->mmio.num_mmio_block; + int i; + + for (i = 0; i < num; i++, block++) { + if (offset >= i915_mmio_reg_offset(block->offset) && + offset < i915_mmio_reg_offset(block->offset) + block->size) + return block; + } + return NULL; +} + +/** + * intel_gvt_clean_mmio_info - clean up MMIO information table for GVT device + * @gvt: GVT device + * + * This function is called at the driver unloading stage, to clean up the MMIO + * information table of GVT device + * + */ +void intel_gvt_clean_mmio_info(struct intel_gvt *gvt) +{ + struct hlist_node *tmp; + struct intel_gvt_mmio_info *e; + int i; + + hash_for_each_safe(gvt->mmio.mmio_info_table, i, tmp, e, node) + kfree(e); + + kfree(gvt->mmio.mmio_block); + gvt->mmio.mmio_block = NULL; + gvt->mmio.num_mmio_block = 0; + + vfree(gvt->mmio.mmio_attribute); + gvt->mmio.mmio_attribute = NULL; +} + +static int handle_mmio(struct intel_gvt_mmio_table_iter *iter, u32 offset, + u32 size) +{ + struct intel_gvt *gvt = iter->data; + struct intel_gvt_mmio_info *info, *p; + u32 start, end, i; + + if (WARN_ON(!IS_ALIGNED(offset, 4))) + return -EINVAL; + + start = offset; + end = offset + size; + + for (i = start; i < end; i += 4) { + p = intel_gvt_find_mmio_info(gvt, i); + if (p) { + WARN(1, "dup mmio definition offset %x\n", + info->offset); + + /* We return -EEXIST here to make GVT-g load fail. + * So duplicated MMIO can be found as soon as + * possible. + */ + return -EEXIST; + } + + info = kzalloc(sizeof(*info), GFP_KERNEL); + if (!info) + return -ENOMEM; + + info->offset = i; + info->read = intel_vgpu_default_mmio_read; + info->write = intel_vgpu_default_mmio_write; + INIT_HLIST_NODE(&info->node); + hash_add(gvt->mmio.mmio_info_table, &info->node, info->offset); + gvt->mmio.num_tracked_mmio++; + } + return 0; +} + +static int handle_mmio_block(struct intel_gvt_mmio_table_iter *iter, + u32 offset, u32 size) +{ + struct intel_gvt *gvt = iter->data; + struct gvt_mmio_block *block = gvt->mmio.mmio_block; + void *ret; + + ret = krealloc(block, + (gvt->mmio.num_mmio_block + 1) * sizeof(*block), + GFP_KERNEL); + if (!ret) + return -ENOMEM; + + gvt->mmio.mmio_block = block = ret; + + block += gvt->mmio.num_mmio_block; + + memset(block, 0, sizeof(*block)); + + block->offset = _MMIO(offset); + block->size = size; + + gvt->mmio.num_mmio_block++; + + return 0; +} + +static int handle_mmio_cb(struct intel_gvt_mmio_table_iter *iter, u32 offset, + u32 size) +{ + if (size < 1024 || offset == i915_mmio_reg_offset(GEN9_GFX_MOCS(0))) + return handle_mmio(iter, offset, size); + else + return handle_mmio_block(iter, offset, size); +} + +static int init_mmio_info(struct intel_gvt *gvt) +{ + struct intel_gvt_mmio_table_iter iter = { + .i915 = gvt->gt->i915, + .data = gvt, + .handle_mmio_cb = handle_mmio_cb, + }; + + return intel_gvt_iterate_mmio_table(&iter); +} + +static int init_mmio_block_handlers(struct intel_gvt *gvt) +{ + struct gvt_mmio_block *block; + + block = find_mmio_block(gvt, VGT_PVINFO_PAGE); + if (!block) { + WARN(1, "fail to assign handlers to mmio block %x\n", + i915_mmio_reg_offset(gvt->mmio.mmio_block->offset)); + return -ENODEV; + } + + block->read = pvinfo_mmio_read; + block->write = pvinfo_mmio_write; + + return 0; +} + +/** + * intel_gvt_setup_mmio_info - setup MMIO information table for GVT device + * @gvt: GVT device + * + * This function is called at the initialization stage, to setup the MMIO + * information table for GVT device + * + * Returns: + * zero on success, negative if failed. + */ +int intel_gvt_setup_mmio_info(struct intel_gvt *gvt) +{ + struct intel_gvt_device_info *info = &gvt->device_info; + struct drm_i915_private *i915 = gvt->gt->i915; + int size = info->mmio_size / 4 * sizeof(*gvt->mmio.mmio_attribute); + int ret; + + gvt->mmio.mmio_attribute = vzalloc(size); + if (!gvt->mmio.mmio_attribute) + return -ENOMEM; + + ret = init_mmio_info(gvt); + if (ret) + goto err; + + ret = init_mmio_block_handlers(gvt); + if (ret) + goto err; + + ret = init_generic_mmio_info(gvt); + if (ret) + goto err; + + if (IS_BROADWELL(i915)) { + ret = init_bdw_mmio_info(gvt); + if (ret) + goto err; + } else if (IS_SKYLAKE(i915) || + IS_KABYLAKE(i915) || + IS_COFFEELAKE(i915) || + IS_COMETLAKE(i915)) { + ret = init_bdw_mmio_info(gvt); + if (ret) + goto err; + ret = init_skl_mmio_info(gvt); + if (ret) + goto err; + } else if (IS_BROXTON(i915)) { + ret = init_bdw_mmio_info(gvt); + if (ret) + goto err; + ret = init_skl_mmio_info(gvt); + if (ret) + goto err; + ret = init_bxt_mmio_info(gvt); + if (ret) + goto err; + } + + return 0; +err: + intel_gvt_clean_mmio_info(gvt); + return ret; +} + +/** + * intel_gvt_for_each_tracked_mmio - iterate each tracked mmio + * @gvt: a GVT device + * @handler: the handler + * @data: private data given to handler + * + * Returns: + * Zero on success, negative error code if failed. + */ +int intel_gvt_for_each_tracked_mmio(struct intel_gvt *gvt, + int (*handler)(struct intel_gvt *gvt, u32 offset, void *data), + void *data) +{ + struct gvt_mmio_block *block = gvt->mmio.mmio_block; + struct intel_gvt_mmio_info *e; + int i, j, ret; + + hash_for_each(gvt->mmio.mmio_info_table, i, e, node) { + ret = handler(gvt, e->offset, data); + if (ret) + return ret; + } + + for (i = 0; i < gvt->mmio.num_mmio_block; i++, block++) { + /* pvinfo data doesn't come from hw mmio */ + if (i915_mmio_reg_offset(block->offset) == VGT_PVINFO_PAGE) + continue; + + for (j = 0; j < block->size; j += 4) { + ret = handler(gvt, i915_mmio_reg_offset(block->offset) + j, data); + if (ret) + return ret; + } + } + return 0; +} + +/** + * intel_vgpu_default_mmio_read - default MMIO read handler + * @vgpu: a vGPU + * @offset: access offset + * @p_data: data return buffer + * @bytes: access data length + * + * Returns: + * Zero on success, negative error code if failed. + */ +int intel_vgpu_default_mmio_read(struct intel_vgpu *vgpu, unsigned int offset, + void *p_data, unsigned int bytes) +{ + read_vreg(vgpu, offset, p_data, bytes); + return 0; +} + +/** + * intel_vgpu_default_mmio_write() - default MMIO write handler + * @vgpu: a vGPU + * @offset: access offset + * @p_data: write data buffer + * @bytes: access data length + * + * Returns: + * Zero on success, negative error code if failed. + */ +int intel_vgpu_default_mmio_write(struct intel_vgpu *vgpu, unsigned int offset, + void *p_data, unsigned int bytes) +{ + write_vreg(vgpu, offset, p_data, bytes); + return 0; +} + +/** + * intel_vgpu_mask_mmio_write - write mask register + * @vgpu: a vGPU + * @offset: access offset + * @p_data: write data buffer + * @bytes: access data length + * + * Returns: + * Zero on success, negative error code if failed. + */ +int intel_vgpu_mask_mmio_write(struct intel_vgpu *vgpu, unsigned int offset, + void *p_data, unsigned int bytes) +{ + u32 mask, old_vreg; + + old_vreg = vgpu_vreg(vgpu, offset); + write_vreg(vgpu, offset, p_data, bytes); + mask = vgpu_vreg(vgpu, offset) >> 16; + vgpu_vreg(vgpu, offset) = (old_vreg & ~mask) | + (vgpu_vreg(vgpu, offset) & mask); + + return 0; +} + +/** + * intel_gvt_in_force_nonpriv_whitelist - if a mmio is in whitelist to be + * force-nopriv register + * + * @gvt: a GVT device + * @offset: register offset + * + * Returns: + * True if the register is in force-nonpriv whitelist; + * False if outside; + */ +bool intel_gvt_in_force_nonpriv_whitelist(struct intel_gvt *gvt, + unsigned int offset) +{ + return in_whitelist(offset); +} + +/** + * intel_vgpu_mmio_reg_rw - emulate tracked mmio registers + * @vgpu: a vGPU + * @offset: register offset + * @pdata: data buffer + * @bytes: data length + * @is_read: read or write + * + * Returns: + * Zero on success, negative error code if failed. + */ +int intel_vgpu_mmio_reg_rw(struct intel_vgpu *vgpu, unsigned int offset, + void *pdata, unsigned int bytes, bool is_read) +{ + struct drm_i915_private *i915 = vgpu->gvt->gt->i915; + struct intel_gvt *gvt = vgpu->gvt; + struct intel_gvt_mmio_info *mmio_info; + struct gvt_mmio_block *mmio_block; + gvt_mmio_func func; + int ret; + + if (drm_WARN_ON(&i915->drm, bytes > 8)) + return -EINVAL; + + /* + * Handle special MMIO blocks. + */ + mmio_block = find_mmio_block(gvt, offset); + if (mmio_block) { + func = is_read ? mmio_block->read : mmio_block->write; + if (func) + return func(vgpu, offset, pdata, bytes); + goto default_rw; + } + + /* + * Normal tracked MMIOs. + */ + mmio_info = intel_gvt_find_mmio_info(gvt, offset); + if (!mmio_info) { + gvt_dbg_mmio("untracked MMIO %08x len %d\n", offset, bytes); + goto default_rw; + } + + if (is_read) + return mmio_info->read(vgpu, offset, pdata, bytes); + else { + u64 ro_mask = mmio_info->ro_mask; + u32 old_vreg = 0; + u64 data = 0; + + if (intel_gvt_mmio_has_mode_mask(gvt, mmio_info->offset)) { + old_vreg = vgpu_vreg(vgpu, offset); + } + + if (likely(!ro_mask)) + ret = mmio_info->write(vgpu, offset, pdata, bytes); + else if (!~ro_mask) { + gvt_vgpu_err("try to write RO reg %x\n", offset); + return 0; + } else { + /* keep the RO bits in the virtual register */ + memcpy(&data, pdata, bytes); + data &= ~ro_mask; + data |= vgpu_vreg(vgpu, offset) & ro_mask; + ret = mmio_info->write(vgpu, offset, &data, bytes); + } + + /* higher 16bits of mode ctl regs are mask bits for change */ + if (intel_gvt_mmio_has_mode_mask(gvt, mmio_info->offset)) { + u32 mask = vgpu_vreg(vgpu, offset) >> 16; + + vgpu_vreg(vgpu, offset) = (old_vreg & ~mask) + | (vgpu_vreg(vgpu, offset) & mask); + } + } + + return ret; + +default_rw: + return is_read ? + intel_vgpu_default_mmio_read(vgpu, offset, pdata, bytes) : + intel_vgpu_default_mmio_write(vgpu, offset, pdata, bytes); +} + +void intel_gvt_restore_fence(struct intel_gvt *gvt) +{ + struct intel_vgpu *vgpu; + int i, id; + + idr_for_each_entry(&(gvt)->vgpu_idr, vgpu, id) { + mmio_hw_access_pre(gvt->gt); + for (i = 0; i < vgpu_fence_sz(vgpu); i++) + intel_vgpu_write_fence(vgpu, i, vgpu_vreg64(vgpu, fence_num_to_offset(i))); + mmio_hw_access_post(gvt->gt); + } +} + +static int mmio_pm_restore_handler(struct intel_gvt *gvt, u32 offset, void *data) +{ + struct intel_vgpu *vgpu = data; + struct drm_i915_private *dev_priv = gvt->gt->i915; + + if (gvt->mmio.mmio_attribute[offset >> 2] & F_PM_SAVE) + intel_uncore_write(&dev_priv->uncore, _MMIO(offset), vgpu_vreg(vgpu, offset)); + + return 0; +} + +void intel_gvt_restore_mmio(struct intel_gvt *gvt) +{ + struct intel_vgpu *vgpu; + int id; + + idr_for_each_entry(&(gvt)->vgpu_idr, vgpu, id) { + mmio_hw_access_pre(gvt->gt); + intel_gvt_for_each_tracked_mmio(gvt, mmio_pm_restore_handler, vgpu); + mmio_hw_access_post(gvt->gt); + } +} |