diff options
Diffstat (limited to 'drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c')
| -rw-r--r-- | drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 1626 |
1 files changed, 1626 insertions, 0 deletions
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c new file mode 100644 index 000000000..5a5821e59 --- /dev/null +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c @@ -0,0 +1,1626 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * Copyright (c) 2022-2023 Qualcomm Innovation Center, Inc. All rights reserved. + * Copyright (c) 2014-2021 The Linux Foundation. All rights reserved. + * Copyright (C) 2013 Red Hat + * Author: Rob Clark <robdclark@gmail.com> + */ + +#define pr_fmt(fmt) "[drm:%s:%d] " fmt, __func__, __LINE__ +#include <linux/sort.h> +#include <linux/debugfs.h> +#include <linux/ktime.h> +#include <linux/bits.h> + +#include <drm/drm_atomic.h> +#include <drm/drm_blend.h> +#include <drm/drm_crtc.h> +#include <drm/drm_flip_work.h> +#include <drm/drm_framebuffer.h> +#include <drm/drm_mode.h> +#include <drm/drm_probe_helper.h> +#include <drm/drm_rect.h> +#include <drm/drm_vblank.h> + +#include "dpu_kms.h" +#include "dpu_hw_lm.h" +#include "dpu_hw_ctl.h" +#include "dpu_hw_dspp.h" +#include "dpu_crtc.h" +#include "dpu_plane.h" +#include "dpu_encoder.h" +#include "dpu_vbif.h" +#include "dpu_core_perf.h" +#include "dpu_trace.h" + +/* layer mixer index on dpu_crtc */ +#define LEFT_MIXER 0 +#define RIGHT_MIXER 1 + +/* timeout in ms waiting for frame done */ +#define DPU_CRTC_FRAME_DONE_TIMEOUT_MS 60 + +#define CONVERT_S3_15(val) \ + (((((u64)val) & ~BIT_ULL(63)) >> 17) & GENMASK_ULL(17, 0)) + +static struct dpu_kms *_dpu_crtc_get_kms(struct drm_crtc *crtc) +{ + struct msm_drm_private *priv = crtc->dev->dev_private; + + return to_dpu_kms(priv->kms); +} + +static void dpu_crtc_destroy(struct drm_crtc *crtc) +{ + struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc); + + if (!crtc) + return; + + drm_crtc_cleanup(crtc); + kfree(dpu_crtc); +} + +static struct drm_encoder *get_encoder_from_crtc(struct drm_crtc *crtc) +{ + struct drm_device *dev = crtc->dev; + struct drm_encoder *encoder; + + drm_for_each_encoder(encoder, dev) + if (encoder->crtc == crtc) + return encoder; + + return NULL; +} + +static enum dpu_crtc_crc_source dpu_crtc_parse_crc_source(const char *src_name) +{ + if (!src_name || + !strcmp(src_name, "none")) + return DPU_CRTC_CRC_SOURCE_NONE; + if (!strcmp(src_name, "auto") || + !strcmp(src_name, "lm")) + return DPU_CRTC_CRC_SOURCE_LAYER_MIXER; + if (!strcmp(src_name, "encoder")) + return DPU_CRTC_CRC_SOURCE_ENCODER; + + return DPU_CRTC_CRC_SOURCE_INVALID; +} + +static int dpu_crtc_verify_crc_source(struct drm_crtc *crtc, + const char *src_name, size_t *values_cnt) +{ + enum dpu_crtc_crc_source source = dpu_crtc_parse_crc_source(src_name); + struct dpu_crtc_state *crtc_state = to_dpu_crtc_state(crtc->state); + + if (source < 0) { + DRM_DEBUG_DRIVER("Invalid source %s for CRTC%d\n", src_name, crtc->index); + return -EINVAL; + } + + if (source == DPU_CRTC_CRC_SOURCE_LAYER_MIXER) { + *values_cnt = crtc_state->num_mixers; + } else if (source == DPU_CRTC_CRC_SOURCE_ENCODER) { + struct drm_encoder *drm_enc; + + *values_cnt = 0; + + drm_for_each_encoder_mask(drm_enc, crtc->dev, crtc->state->encoder_mask) + *values_cnt += dpu_encoder_get_crc_values_cnt(drm_enc); + } + + return 0; +} + +static void dpu_crtc_setup_lm_misr(struct dpu_crtc_state *crtc_state) +{ + struct dpu_crtc_mixer *m; + int i; + + for (i = 0; i < crtc_state->num_mixers; ++i) { + m = &crtc_state->mixers[i]; + + if (!m->hw_lm || !m->hw_lm->ops.setup_misr) + continue; + + /* Calculate MISR over 1 frame */ + m->hw_lm->ops.setup_misr(m->hw_lm); + } +} + +static void dpu_crtc_setup_encoder_misr(struct drm_crtc *crtc) +{ + struct drm_encoder *drm_enc; + + drm_for_each_encoder_mask(drm_enc, crtc->dev, crtc->state->encoder_mask) + dpu_encoder_setup_misr(drm_enc); +} + +static int dpu_crtc_set_crc_source(struct drm_crtc *crtc, const char *src_name) +{ + enum dpu_crtc_crc_source source = dpu_crtc_parse_crc_source(src_name); + enum dpu_crtc_crc_source current_source; + struct dpu_crtc_state *crtc_state; + struct drm_device *drm_dev = crtc->dev; + + bool was_enabled; + bool enable = false; + int ret = 0; + + if (source < 0) { + DRM_DEBUG_DRIVER("Invalid CRC source %s for CRTC%d\n", src_name, crtc->index); + return -EINVAL; + } + + ret = drm_modeset_lock(&crtc->mutex, NULL); + + if (ret) + return ret; + + enable = (source != DPU_CRTC_CRC_SOURCE_NONE); + crtc_state = to_dpu_crtc_state(crtc->state); + + spin_lock_irq(&drm_dev->event_lock); + current_source = crtc_state->crc_source; + spin_unlock_irq(&drm_dev->event_lock); + + was_enabled = (current_source != DPU_CRTC_CRC_SOURCE_NONE); + + if (!was_enabled && enable) { + ret = drm_crtc_vblank_get(crtc); + + if (ret) + goto cleanup; + + } else if (was_enabled && !enable) { + drm_crtc_vblank_put(crtc); + } + + spin_lock_irq(&drm_dev->event_lock); + crtc_state->crc_source = source; + spin_unlock_irq(&drm_dev->event_lock); + + crtc_state->crc_frame_skip_count = 0; + + if (source == DPU_CRTC_CRC_SOURCE_LAYER_MIXER) + dpu_crtc_setup_lm_misr(crtc_state); + else if (source == DPU_CRTC_CRC_SOURCE_ENCODER) + dpu_crtc_setup_encoder_misr(crtc); + else + ret = -EINVAL; + +cleanup: + drm_modeset_unlock(&crtc->mutex); + + return ret; +} + +static u32 dpu_crtc_get_vblank_counter(struct drm_crtc *crtc) +{ + struct drm_encoder *encoder = get_encoder_from_crtc(crtc); + if (!encoder) { + DRM_ERROR("no encoder found for crtc %d\n", crtc->index); + return 0; + } + + return dpu_encoder_get_vsync_count(encoder); +} + +static int dpu_crtc_get_lm_crc(struct drm_crtc *crtc, + struct dpu_crtc_state *crtc_state) +{ + struct dpu_crtc_mixer *m; + u32 crcs[CRTC_DUAL_MIXERS]; + + int rc = 0; + int i; + + BUILD_BUG_ON(ARRAY_SIZE(crcs) != ARRAY_SIZE(crtc_state->mixers)); + + for (i = 0; i < crtc_state->num_mixers; ++i) { + + m = &crtc_state->mixers[i]; + + if (!m->hw_lm || !m->hw_lm->ops.collect_misr) + continue; + + rc = m->hw_lm->ops.collect_misr(m->hw_lm, &crcs[i]); + + if (rc) { + if (rc != -ENODATA) + DRM_DEBUG_DRIVER("MISR read failed\n"); + return rc; + } + } + + return drm_crtc_add_crc_entry(crtc, true, + drm_crtc_accurate_vblank_count(crtc), crcs); +} + +static int dpu_crtc_get_encoder_crc(struct drm_crtc *crtc) +{ + struct drm_encoder *drm_enc; + int rc, pos = 0; + u32 crcs[INTF_MAX]; + + drm_for_each_encoder_mask(drm_enc, crtc->dev, crtc->state->encoder_mask) { + rc = dpu_encoder_get_crc(drm_enc, crcs, pos); + if (rc < 0) { + if (rc != -ENODATA) + DRM_DEBUG_DRIVER("MISR read failed\n"); + + return rc; + } + + pos += rc; + } + + return drm_crtc_add_crc_entry(crtc, true, + drm_crtc_accurate_vblank_count(crtc), crcs); +} + +static int dpu_crtc_get_crc(struct drm_crtc *crtc) +{ + struct dpu_crtc_state *crtc_state = to_dpu_crtc_state(crtc->state); + + /* Skip first 2 frames in case of "uncooked" CRCs */ + if (crtc_state->crc_frame_skip_count < 2) { + crtc_state->crc_frame_skip_count++; + return 0; + } + + if (crtc_state->crc_source == DPU_CRTC_CRC_SOURCE_LAYER_MIXER) + return dpu_crtc_get_lm_crc(crtc, crtc_state); + else if (crtc_state->crc_source == DPU_CRTC_CRC_SOURCE_ENCODER) + return dpu_crtc_get_encoder_crc(crtc); + + return -EINVAL; +} + +static bool dpu_crtc_get_scanout_position(struct drm_crtc *crtc, + bool in_vblank_irq, + int *vpos, int *hpos, + ktime_t *stime, ktime_t *etime, + const struct drm_display_mode *mode) +{ + unsigned int pipe = crtc->index; + struct drm_encoder *encoder; + int line, vsw, vbp, vactive_start, vactive_end, vfp_end; + + encoder = get_encoder_from_crtc(crtc); + if (!encoder) { + DRM_ERROR("no encoder found for crtc %d\n", pipe); + return false; + } + + vsw = mode->crtc_vsync_end - mode->crtc_vsync_start; + vbp = mode->crtc_vtotal - mode->crtc_vsync_end; + + /* + * the line counter is 1 at the start of the VSYNC pulse and VTOTAL at + * the end of VFP. Translate the porch values relative to the line + * counter positions. + */ + + vactive_start = vsw + vbp + 1; + vactive_end = vactive_start + mode->crtc_vdisplay; + + /* last scan line before VSYNC */ + vfp_end = mode->crtc_vtotal; + + if (stime) + *stime = ktime_get(); + + line = dpu_encoder_get_linecount(encoder); + + if (line < vactive_start) + line -= vactive_start; + else if (line > vactive_end) + line = line - vfp_end - vactive_start; + else + line -= vactive_start; + + *vpos = line; + *hpos = 0; + + if (etime) + *etime = ktime_get(); + + return true; +} + +static void _dpu_crtc_setup_blend_cfg(struct dpu_crtc_mixer *mixer, + struct dpu_plane_state *pstate, struct dpu_format *format) +{ + struct dpu_hw_mixer *lm = mixer->hw_lm; + uint32_t blend_op; + uint32_t fg_alpha, bg_alpha; + + fg_alpha = pstate->base.alpha >> 8; + bg_alpha = 0xff - fg_alpha; + + /* default to opaque blending */ + if (pstate->base.pixel_blend_mode == DRM_MODE_BLEND_PIXEL_NONE || + !format->alpha_enable) { + blend_op = DPU_BLEND_FG_ALPHA_FG_CONST | + DPU_BLEND_BG_ALPHA_BG_CONST; + } else if (pstate->base.pixel_blend_mode == DRM_MODE_BLEND_PREMULTI) { + blend_op = DPU_BLEND_FG_ALPHA_FG_CONST | + DPU_BLEND_BG_ALPHA_FG_PIXEL; + if (fg_alpha != 0xff) { + bg_alpha = fg_alpha; + blend_op |= DPU_BLEND_BG_MOD_ALPHA | + DPU_BLEND_BG_INV_MOD_ALPHA; + } else { + blend_op |= DPU_BLEND_BG_INV_ALPHA; + } + } else { + /* coverage blending */ + blend_op = DPU_BLEND_FG_ALPHA_FG_PIXEL | + DPU_BLEND_BG_ALPHA_FG_PIXEL; + if (fg_alpha != 0xff) { + bg_alpha = fg_alpha; + blend_op |= DPU_BLEND_FG_MOD_ALPHA | + DPU_BLEND_FG_INV_MOD_ALPHA | + DPU_BLEND_BG_MOD_ALPHA | + DPU_BLEND_BG_INV_MOD_ALPHA; + } else { + blend_op |= DPU_BLEND_BG_INV_ALPHA; + } + } + + lm->ops.setup_blend_config(lm, pstate->stage, + fg_alpha, bg_alpha, blend_op); + + DRM_DEBUG_ATOMIC("format:%p4cc, alpha_en:%u blend_op:0x%x\n", + &format->base.pixel_format, format->alpha_enable, blend_op); +} + +static void _dpu_crtc_program_lm_output_roi(struct drm_crtc *crtc) +{ + struct dpu_crtc_state *crtc_state; + int lm_idx, lm_horiz_position; + + crtc_state = to_dpu_crtc_state(crtc->state); + + lm_horiz_position = 0; + for (lm_idx = 0; lm_idx < crtc_state->num_mixers; lm_idx++) { + const struct drm_rect *lm_roi = &crtc_state->lm_bounds[lm_idx]; + struct dpu_hw_mixer *hw_lm = crtc_state->mixers[lm_idx].hw_lm; + struct dpu_hw_mixer_cfg cfg; + + if (!lm_roi || !drm_rect_visible(lm_roi)) + continue; + + cfg.out_width = drm_rect_width(lm_roi); + cfg.out_height = drm_rect_height(lm_roi); + cfg.right_mixer = lm_horiz_position++; + cfg.flags = 0; + hw_lm->ops.setup_mixer_out(hw_lm, &cfg); + } +} + +static void _dpu_crtc_blend_setup_mixer(struct drm_crtc *crtc, + struct dpu_crtc *dpu_crtc, struct dpu_crtc_mixer *mixer, + struct dpu_hw_stage_cfg *stage_cfg) +{ + struct drm_plane *plane; + struct drm_framebuffer *fb; + struct drm_plane_state *state; + struct dpu_crtc_state *cstate = to_dpu_crtc_state(crtc->state); + struct dpu_plane_state *pstate = NULL; + struct dpu_format *format; + struct dpu_hw_ctl *ctl = mixer->lm_ctl; + + uint32_t stage_idx, lm_idx; + int zpos_cnt[DPU_STAGE_MAX + 1] = { 0 }; + bool bg_alpha_enable = false; + DECLARE_BITMAP(fetch_active, SSPP_MAX); + + memset(fetch_active, 0, sizeof(fetch_active)); + drm_atomic_crtc_for_each_plane(plane, crtc) { + enum dpu_sspp sspp_idx; + + state = plane->state; + if (!state) + continue; + + if (!state->visible) + continue; + + pstate = to_dpu_plane_state(state); + fb = state->fb; + + sspp_idx = dpu_plane_pipe(plane); + set_bit(sspp_idx, fetch_active); + + DRM_DEBUG_ATOMIC("crtc %d stage:%d - plane %d sspp %d fb %d\n", + crtc->base.id, + pstate->stage, + plane->base.id, + sspp_idx - SSPP_VIG0, + state->fb ? state->fb->base.id : -1); + + format = to_dpu_format(msm_framebuffer_format(pstate->base.fb)); + + if (pstate->stage == DPU_STAGE_BASE && format->alpha_enable) + bg_alpha_enable = true; + + stage_idx = zpos_cnt[pstate->stage]++; + stage_cfg->stage[pstate->stage][stage_idx] = + sspp_idx; + stage_cfg->multirect_index[pstate->stage][stage_idx] = + pstate->multirect_index; + + trace_dpu_crtc_setup_mixer(DRMID(crtc), DRMID(plane), + state, pstate, stage_idx, + sspp_idx - SSPP_VIG0, + format->base.pixel_format, + fb ? fb->modifier : 0); + + /* blend config update */ + for (lm_idx = 0; lm_idx < cstate->num_mixers; lm_idx++) { + _dpu_crtc_setup_blend_cfg(mixer + lm_idx, + pstate, format); + + mixer[lm_idx].lm_ctl->ops.update_pending_flush_sspp(mixer[lm_idx].lm_ctl, + sspp_idx); + + if (bg_alpha_enable && !format->alpha_enable) + mixer[lm_idx].mixer_op_mode = 0; + else + mixer[lm_idx].mixer_op_mode |= + 1 << pstate->stage; + } + } + + if (ctl->ops.set_active_pipes) + ctl->ops.set_active_pipes(ctl, fetch_active); + + _dpu_crtc_program_lm_output_roi(crtc); +} + +/** + * _dpu_crtc_blend_setup - configure crtc mixers + * @crtc: Pointer to drm crtc structure + */ +static void _dpu_crtc_blend_setup(struct drm_crtc *crtc) +{ + struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc); + struct dpu_crtc_state *cstate = to_dpu_crtc_state(crtc->state); + struct dpu_crtc_mixer *mixer = cstate->mixers; + struct dpu_hw_ctl *ctl; + struct dpu_hw_mixer *lm; + struct dpu_hw_stage_cfg stage_cfg; + int i; + + DRM_DEBUG_ATOMIC("%s\n", dpu_crtc->name); + + for (i = 0; i < cstate->num_mixers; i++) { + mixer[i].mixer_op_mode = 0; + if (mixer[i].lm_ctl->ops.clear_all_blendstages) + mixer[i].lm_ctl->ops.clear_all_blendstages( + mixer[i].lm_ctl); + } + + /* initialize stage cfg */ + memset(&stage_cfg, 0, sizeof(struct dpu_hw_stage_cfg)); + + _dpu_crtc_blend_setup_mixer(crtc, dpu_crtc, mixer, &stage_cfg); + + for (i = 0; i < cstate->num_mixers; i++) { + ctl = mixer[i].lm_ctl; + lm = mixer[i].hw_lm; + + lm->ops.setup_alpha_out(lm, mixer[i].mixer_op_mode); + + /* stage config flush mask */ + ctl->ops.update_pending_flush_mixer(ctl, + mixer[i].hw_lm->idx); + + DRM_DEBUG_ATOMIC("lm %d, op_mode 0x%X, ctl %d\n", + mixer[i].hw_lm->idx - LM_0, + mixer[i].mixer_op_mode, + ctl->idx - CTL_0); + + ctl->ops.setup_blendstage(ctl, mixer[i].hw_lm->idx, + &stage_cfg); + } +} + +/** + * _dpu_crtc_complete_flip - signal pending page_flip events + * Any pending vblank events are added to the vblank_event_list + * so that the next vblank interrupt shall signal them. + * However PAGE_FLIP events are not handled through the vblank_event_list. + * This API signals any pending PAGE_FLIP events requested through + * DRM_IOCTL_MODE_PAGE_FLIP and are cached in the dpu_crtc->event. + * @crtc: Pointer to drm crtc structure + */ +static void _dpu_crtc_complete_flip(struct drm_crtc *crtc) +{ + struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc); + struct drm_device *dev = crtc->dev; + unsigned long flags; + + spin_lock_irqsave(&dev->event_lock, flags); + if (dpu_crtc->event) { + DRM_DEBUG_VBL("%s: send event: %pK\n", dpu_crtc->name, + dpu_crtc->event); + trace_dpu_crtc_complete_flip(DRMID(crtc)); + drm_crtc_send_vblank_event(crtc, dpu_crtc->event); + dpu_crtc->event = NULL; + } + spin_unlock_irqrestore(&dev->event_lock, flags); +} + +enum dpu_intf_mode dpu_crtc_get_intf_mode(struct drm_crtc *crtc) +{ + struct drm_encoder *encoder; + + /* + * TODO: This function is called from dpu debugfs and as part of atomic + * check. When called from debugfs, the crtc->mutex must be held to + * read crtc->state. However reading crtc->state from atomic check isn't + * allowed (unless you have a good reason, a big comment, and a deep + * understanding of how the atomic/modeset locks work (<- and this is + * probably not possible)). So we'll keep the WARN_ON here for now, but + * really we need to figure out a better way to track our operating mode + */ + WARN_ON(!drm_modeset_is_locked(&crtc->mutex)); + + /* TODO: Returns the first INTF_MODE, could there be multiple values? */ + drm_for_each_encoder_mask(encoder, crtc->dev, crtc->state->encoder_mask) + return dpu_encoder_get_intf_mode(encoder); + + return INTF_MODE_NONE; +} + +void dpu_crtc_vblank_callback(struct drm_crtc *crtc) +{ + struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc); + + /* keep statistics on vblank callback - with auto reset via debugfs */ + if (ktime_compare(dpu_crtc->vblank_cb_time, ktime_set(0, 0)) == 0) + dpu_crtc->vblank_cb_time = ktime_get(); + else + dpu_crtc->vblank_cb_count++; + + dpu_crtc_get_crc(crtc); + + drm_crtc_handle_vblank(crtc); + trace_dpu_crtc_vblank_cb(DRMID(crtc)); +} + +static void dpu_crtc_frame_event_work(struct kthread_work *work) +{ + struct dpu_crtc_frame_event *fevent = container_of(work, + struct dpu_crtc_frame_event, work); + struct drm_crtc *crtc = fevent->crtc; + struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc); + unsigned long flags; + bool frame_done = false; + + DPU_ATRACE_BEGIN("crtc_frame_event"); + + DRM_DEBUG_ATOMIC("crtc%d event:%u ts:%lld\n", crtc->base.id, fevent->event, + ktime_to_ns(fevent->ts)); + + if (fevent->event & (DPU_ENCODER_FRAME_EVENT_DONE + | DPU_ENCODER_FRAME_EVENT_ERROR + | DPU_ENCODER_FRAME_EVENT_PANEL_DEAD)) { + + if (atomic_read(&dpu_crtc->frame_pending) < 1) { + /* ignore vblank when not pending */ + } else if (atomic_dec_return(&dpu_crtc->frame_pending) == 0) { + /* release bandwidth and other resources */ + trace_dpu_crtc_frame_event_done(DRMID(crtc), + fevent->event); + dpu_core_perf_crtc_release_bw(crtc); + } else { + trace_dpu_crtc_frame_event_more_pending(DRMID(crtc), + fevent->event); + } + + if (fevent->event & (DPU_ENCODER_FRAME_EVENT_DONE + | DPU_ENCODER_FRAME_EVENT_ERROR)) + frame_done = true; + } + + if (fevent->event & DPU_ENCODER_FRAME_EVENT_PANEL_DEAD) + DPU_ERROR("crtc%d ts:%lld received panel dead event\n", + crtc->base.id, ktime_to_ns(fevent->ts)); + + if (frame_done) + complete_all(&dpu_crtc->frame_done_comp); + + spin_lock_irqsave(&dpu_crtc->spin_lock, flags); + list_add_tail(&fevent->list, &dpu_crtc->frame_event_list); + spin_unlock_irqrestore(&dpu_crtc->spin_lock, flags); + DPU_ATRACE_END("crtc_frame_event"); +} + +/* + * dpu_crtc_frame_event_cb - crtc frame event callback API. CRTC module + * registers this API to encoder for all frame event callbacks like + * frame_error, frame_done, idle_timeout, etc. Encoder may call different events + * from different context - IRQ, user thread, commit_thread, etc. Each event + * should be carefully reviewed and should be processed in proper task context + * to avoid schedulin delay or properly manage the irq context's bottom half + * processing. + */ +static void dpu_crtc_frame_event_cb(void *data, u32 event) +{ + struct drm_crtc *crtc = (struct drm_crtc *)data; + struct dpu_crtc *dpu_crtc; + struct msm_drm_private *priv; + struct dpu_crtc_frame_event *fevent; + unsigned long flags; + u32 crtc_id; + + /* Nothing to do on idle event */ + if (event & DPU_ENCODER_FRAME_EVENT_IDLE) + return; + + dpu_crtc = to_dpu_crtc(crtc); + priv = crtc->dev->dev_private; + crtc_id = drm_crtc_index(crtc); + + trace_dpu_crtc_frame_event_cb(DRMID(crtc), event); + + spin_lock_irqsave(&dpu_crtc->spin_lock, flags); + fevent = list_first_entry_or_null(&dpu_crtc->frame_event_list, + struct dpu_crtc_frame_event, list); + if (fevent) + list_del_init(&fevent->list); + spin_unlock_irqrestore(&dpu_crtc->spin_lock, flags); + + if (!fevent) { + DRM_ERROR_RATELIMITED("crtc%d event %d overflow\n", crtc->base.id, event); + return; + } + + fevent->event = event; + fevent->crtc = crtc; + fevent->ts = ktime_get(); + kthread_queue_work(priv->event_thread[crtc_id].worker, &fevent->work); +} + +void dpu_crtc_complete_commit(struct drm_crtc *crtc) +{ + trace_dpu_crtc_complete_commit(DRMID(crtc)); + dpu_core_perf_crtc_update(crtc, 0, false); + _dpu_crtc_complete_flip(crtc); +} + +static void _dpu_crtc_setup_lm_bounds(struct drm_crtc *crtc, + struct drm_crtc_state *state) +{ + struct dpu_crtc_state *cstate = to_dpu_crtc_state(state); + struct drm_display_mode *adj_mode = &state->adjusted_mode; + u32 crtc_split_width = adj_mode->hdisplay / cstate->num_mixers; + int i; + + for (i = 0; i < cstate->num_mixers; i++) { + struct drm_rect *r = &cstate->lm_bounds[i]; + r->x1 = crtc_split_width * i; + r->y1 = 0; + r->x2 = r->x1 + crtc_split_width; + r->y2 = adj_mode->vdisplay; + + trace_dpu_crtc_setup_lm_bounds(DRMID(crtc), i, r); + } +} + +static void _dpu_crtc_get_pcc_coeff(struct drm_crtc_state *state, + struct dpu_hw_pcc_cfg *cfg) +{ + struct drm_color_ctm *ctm; + + memset(cfg, 0, sizeof(struct dpu_hw_pcc_cfg)); + + ctm = (struct drm_color_ctm *)state->ctm->data; + + if (!ctm) + return; + + cfg->r.r = CONVERT_S3_15(ctm->matrix[0]); + cfg->g.r = CONVERT_S3_15(ctm->matrix[1]); + cfg->b.r = CONVERT_S3_15(ctm->matrix[2]); + + cfg->r.g = CONVERT_S3_15(ctm->matrix[3]); + cfg->g.g = CONVERT_S3_15(ctm->matrix[4]); + cfg->b.g = CONVERT_S3_15(ctm->matrix[5]); + + cfg->r.b = CONVERT_S3_15(ctm->matrix[6]); + cfg->g.b = CONVERT_S3_15(ctm->matrix[7]); + cfg->b.b = CONVERT_S3_15(ctm->matrix[8]); +} + +static void _dpu_crtc_setup_cp_blocks(struct drm_crtc *crtc) +{ + struct drm_crtc_state *state = crtc->state; + struct dpu_crtc_state *cstate = to_dpu_crtc_state(crtc->state); + struct dpu_crtc_mixer *mixer = cstate->mixers; + struct dpu_hw_pcc_cfg cfg; + struct dpu_hw_ctl *ctl; + struct dpu_hw_dspp *dspp; + int i; + + + if (!state->color_mgmt_changed) + return; + + for (i = 0; i < cstate->num_mixers; i++) { + ctl = mixer[i].lm_ctl; + dspp = mixer[i].hw_dspp; + + if (!dspp || !dspp->ops.setup_pcc) + continue; + + if (!state->ctm) { + dspp->ops.setup_pcc(dspp, NULL); + } else { + _dpu_crtc_get_pcc_coeff(state, &cfg); + dspp->ops.setup_pcc(dspp, &cfg); + } + + /* stage config flush mask */ + ctl->ops.update_pending_flush_dspp(ctl, + mixer[i].hw_dspp->idx); + } +} + +static void dpu_crtc_atomic_begin(struct drm_crtc *crtc, + struct drm_atomic_state *state) +{ + struct dpu_crtc_state *cstate = to_dpu_crtc_state(crtc->state); + struct drm_encoder *encoder; + + if (!crtc->state->enable) { + DRM_DEBUG_ATOMIC("crtc%d -> enable %d, skip atomic_begin\n", + crtc->base.id, crtc->state->enable); + return; + } + + DRM_DEBUG_ATOMIC("crtc%d\n", crtc->base.id); + + _dpu_crtc_setup_lm_bounds(crtc, crtc->state); + + /* encoder will trigger pending mask now */ + drm_for_each_encoder_mask(encoder, crtc->dev, crtc->state->encoder_mask) + dpu_encoder_trigger_kickoff_pending(encoder); + + /* + * If no mixers have been allocated in dpu_crtc_atomic_check(), + * it means we are trying to flush a CRTC whose state is disabled: + * nothing else needs to be done. + */ + if (unlikely(!cstate->num_mixers)) + return; + + _dpu_crtc_blend_setup(crtc); + + _dpu_crtc_setup_cp_blocks(crtc); + + /* + * PP_DONE irq is only used by command mode for now. + * It is better to request pending before FLUSH and START trigger + * to make sure no pp_done irq missed. + * This is safe because no pp_done will happen before SW trigger + * in command mode. + */ +} + +static void dpu_crtc_atomic_flush(struct drm_crtc *crtc, + struct drm_atomic_state *state) +{ + struct dpu_crtc *dpu_crtc; + struct drm_device *dev; + struct drm_plane *plane; + struct msm_drm_private *priv; + unsigned long flags; + struct dpu_crtc_state *cstate; + + if (!crtc->state->enable) { + DRM_DEBUG_ATOMIC("crtc%d -> enable %d, skip atomic_flush\n", + crtc->base.id, crtc->state->enable); + return; + } + + DRM_DEBUG_ATOMIC("crtc%d\n", crtc->base.id); + + dpu_crtc = to_dpu_crtc(crtc); + cstate = to_dpu_crtc_state(crtc->state); + dev = crtc->dev; + priv = dev->dev_private; + + if (crtc->index >= ARRAY_SIZE(priv->event_thread)) { + DPU_ERROR("invalid crtc index[%d]\n", crtc->index); + return; + } + + WARN_ON(dpu_crtc->event); + spin_lock_irqsave(&dev->event_lock, flags); + dpu_crtc->event = crtc->state->event; + crtc->state->event = NULL; + spin_unlock_irqrestore(&dev->event_lock, flags); + + /* + * If no mixers has been allocated in dpu_crtc_atomic_check(), + * it means we are trying to flush a CRTC whose state is disabled: + * nothing else needs to be done. + */ + if (unlikely(!cstate->num_mixers)) + return; + + /* update performance setting before crtc kickoff */ + dpu_core_perf_crtc_update(crtc, 1, false); + + /* + * Final plane updates: Give each plane a chance to complete all + * required writes/flushing before crtc's "flush + * everything" call below. + */ + drm_atomic_crtc_for_each_plane(plane, crtc) { + if (dpu_crtc->smmu_state.transition_error) + dpu_plane_set_error(plane, true); + dpu_plane_flush(plane); + } + + /* Kickoff will be scheduled by outer layer */ +} + +/** + * dpu_crtc_destroy_state - state destroy hook + * @crtc: drm CRTC + * @state: CRTC state object to release + */ +static void dpu_crtc_destroy_state(struct drm_crtc *crtc, + struct drm_crtc_state *state) +{ + struct dpu_crtc_state *cstate = to_dpu_crtc_state(state); + + DRM_DEBUG_ATOMIC("crtc%d\n", crtc->base.id); + + __drm_atomic_helper_crtc_destroy_state(state); + + kfree(cstate); +} + +static int _dpu_crtc_wait_for_frame_done(struct drm_crtc *crtc) +{ + struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc); + int ret, rc = 0; + + if (!atomic_read(&dpu_crtc->frame_pending)) { + DRM_DEBUG_ATOMIC("no frames pending\n"); + return 0; + } + + DPU_ATRACE_BEGIN("frame done completion wait"); + ret = wait_for_completion_timeout(&dpu_crtc->frame_done_comp, + msecs_to_jiffies(DPU_CRTC_FRAME_DONE_TIMEOUT_MS)); + if (!ret) { + DRM_ERROR("frame done wait timed out, ret:%d\n", ret); + rc = -ETIMEDOUT; + } + DPU_ATRACE_END("frame done completion wait"); + + return rc; +} + +void dpu_crtc_commit_kickoff(struct drm_crtc *crtc) +{ + struct drm_encoder *encoder; + struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc); + struct dpu_kms *dpu_kms = _dpu_crtc_get_kms(crtc); + struct dpu_crtc_state *cstate = to_dpu_crtc_state(crtc->state); + + /* + * If no mixers has been allocated in dpu_crtc_atomic_check(), + * it means we are trying to start a CRTC whose state is disabled: + * nothing else needs to be done. + */ + if (unlikely(!cstate->num_mixers)) + return; + + DPU_ATRACE_BEGIN("crtc_commit"); + + drm_for_each_encoder_mask(encoder, crtc->dev, + crtc->state->encoder_mask) { + if (!dpu_encoder_is_valid_for_commit(encoder)) { + DRM_DEBUG_ATOMIC("invalid FB not kicking off crtc\n"); + goto end; + } + } + /* + * Encoder will flush/start now, unless it has a tx pending. If so, it + * may delay and flush at an irq event (e.g. ppdone) + */ + drm_for_each_encoder_mask(encoder, crtc->dev, + crtc->state->encoder_mask) + dpu_encoder_prepare_for_kickoff(encoder); + + if (atomic_inc_return(&dpu_crtc->frame_pending) == 1) { + /* acquire bandwidth and other resources */ + DRM_DEBUG_ATOMIC("crtc%d first commit\n", crtc->base.id); + } else + DRM_DEBUG_ATOMIC("crtc%d commit\n", crtc->base.id); + + dpu_crtc->play_count++; + + dpu_vbif_clear_errors(dpu_kms); + + drm_for_each_encoder_mask(encoder, crtc->dev, crtc->state->encoder_mask) + dpu_encoder_kickoff(encoder); + + reinit_completion(&dpu_crtc->frame_done_comp); + +end: + DPU_ATRACE_END("crtc_commit"); +} + +static void dpu_crtc_reset(struct drm_crtc *crtc) +{ + struct dpu_crtc_state *cstate = kzalloc(sizeof(*cstate), GFP_KERNEL); + + if (crtc->state) + dpu_crtc_destroy_state(crtc, crtc->state); + + if (cstate) + __drm_atomic_helper_crtc_reset(crtc, &cstate->base); + else + __drm_atomic_helper_crtc_reset(crtc, NULL); +} + +/** + * dpu_crtc_duplicate_state - state duplicate hook + * @crtc: Pointer to drm crtc structure + */ +static struct drm_crtc_state *dpu_crtc_duplicate_state(struct drm_crtc *crtc) +{ + struct dpu_crtc_state *cstate, *old_cstate = to_dpu_crtc_state(crtc->state); + + cstate = kmemdup(old_cstate, sizeof(*old_cstate), GFP_KERNEL); + if (!cstate) { + DPU_ERROR("failed to allocate state\n"); + return NULL; + } + + /* duplicate base helper */ + __drm_atomic_helper_crtc_duplicate_state(crtc, &cstate->base); + + return &cstate->base; +} + +static void dpu_crtc_atomic_print_state(struct drm_printer *p, + const struct drm_crtc_state *state) +{ + const struct dpu_crtc_state *cstate = to_dpu_crtc_state(state); + int i; + + for (i = 0; i < cstate->num_mixers; i++) { + drm_printf(p, "\tlm[%d]=%d\n", i, cstate->mixers[i].hw_lm->idx - LM_0); + drm_printf(p, "\tctl[%d]=%d\n", i, cstate->mixers[i].lm_ctl->idx - CTL_0); + if (cstate->mixers[i].hw_dspp) + drm_printf(p, "\tdspp[%d]=%d\n", i, cstate->mixers[i].hw_dspp->idx - DSPP_0); + } +} + +static void dpu_crtc_disable(struct drm_crtc *crtc, + struct drm_atomic_state *state) +{ + struct drm_crtc_state *old_crtc_state = drm_atomic_get_old_crtc_state(state, + crtc); + struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc); + struct dpu_crtc_state *cstate = to_dpu_crtc_state(crtc->state); + struct drm_encoder *encoder; + unsigned long flags; + bool release_bandwidth = false; + + DRM_DEBUG_KMS("crtc%d\n", crtc->base.id); + + /* Disable/save vblank irq handling */ + drm_crtc_vblank_off(crtc); + + drm_for_each_encoder_mask(encoder, crtc->dev, + old_crtc_state->encoder_mask) { + /* in video mode, we hold an extra bandwidth reference + * as we cannot drop bandwidth at frame-done if any + * crtc is being used in video mode. + */ + if (dpu_encoder_get_intf_mode(encoder) == INTF_MODE_VIDEO) + release_bandwidth = true; + dpu_encoder_assign_crtc(encoder, NULL); + } + + /* wait for frame_event_done completion */ + if (_dpu_crtc_wait_for_frame_done(crtc)) + DPU_ERROR("crtc%d wait for frame done failed;frame_pending%d\n", + crtc->base.id, + atomic_read(&dpu_crtc->frame_pending)); + + trace_dpu_crtc_disable(DRMID(crtc), false, dpu_crtc); + dpu_crtc->enabled = false; + + if (atomic_read(&dpu_crtc->frame_pending)) { + trace_dpu_crtc_disable_frame_pending(DRMID(crtc), + atomic_read(&dpu_crtc->frame_pending)); + if (release_bandwidth) + dpu_core_perf_crtc_release_bw(crtc); + atomic_set(&dpu_crtc->frame_pending, 0); + } + + dpu_core_perf_crtc_update(crtc, 0, true); + + drm_for_each_encoder_mask(encoder, crtc->dev, crtc->state->encoder_mask) + dpu_encoder_register_frame_event_callback(encoder, NULL, NULL); + + memset(cstate->mixers, 0, sizeof(cstate->mixers)); + cstate->num_mixers = 0; + + /* disable clk & bw control until clk & bw properties are set */ + cstate->bw_control = false; + cstate->bw_split_vote = false; + + if (crtc->state->event && !crtc->state->active) { + spin_lock_irqsave(&crtc->dev->event_lock, flags); + drm_crtc_send_vblank_event(crtc, crtc->state->event); + crtc->state->event = NULL; + spin_unlock_irqrestore(&crtc->dev->event_lock, flags); + } + + pm_runtime_put_sync(crtc->dev->dev); +} + +static void dpu_crtc_enable(struct drm_crtc *crtc, + struct drm_atomic_state *state) +{ + struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc); + struct drm_encoder *encoder; + bool request_bandwidth = false; + + pm_runtime_get_sync(crtc->dev->dev); + + DRM_DEBUG_KMS("crtc%d\n", crtc->base.id); + + drm_for_each_encoder_mask(encoder, crtc->dev, crtc->state->encoder_mask) { + /* in video mode, we hold an extra bandwidth reference + * as we cannot drop bandwidth at frame-done if any + * crtc is being used in video mode. + */ + if (dpu_encoder_get_intf_mode(encoder) == INTF_MODE_VIDEO) + request_bandwidth = true; + dpu_encoder_register_frame_event_callback(encoder, + dpu_crtc_frame_event_cb, (void *)crtc); + } + + if (request_bandwidth) + atomic_inc(&_dpu_crtc_get_kms(crtc)->bandwidth_ref); + + trace_dpu_crtc_enable(DRMID(crtc), true, dpu_crtc); + dpu_crtc->enabled = true; + + drm_for_each_encoder_mask(encoder, crtc->dev, crtc->state->encoder_mask) + dpu_encoder_assign_crtc(encoder, crtc); + + /* Enable/restore vblank irq handling */ + drm_crtc_vblank_on(crtc); +} + +struct plane_state { + struct dpu_plane_state *dpu_pstate; + const struct drm_plane_state *drm_pstate; + int stage; + u32 pipe_id; +}; + +static bool dpu_crtc_needs_dirtyfb(struct drm_crtc_state *cstate) +{ + struct drm_crtc *crtc = cstate->crtc; + struct drm_encoder *encoder; + + drm_for_each_encoder_mask (encoder, crtc->dev, cstate->encoder_mask) { + if (dpu_encoder_get_intf_mode(encoder) == INTF_MODE_CMD) { + return true; + } + } + + return false; +} + +static int dpu_crtc_atomic_check(struct drm_crtc *crtc, + struct drm_atomic_state *state) +{ + struct drm_crtc_state *crtc_state = drm_atomic_get_new_crtc_state(state, + crtc); + struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc); + struct dpu_crtc_state *cstate = to_dpu_crtc_state(crtc_state); + struct plane_state *pstates; + + const struct drm_plane_state *pstate; + struct drm_plane *plane; + struct drm_display_mode *mode; + + int cnt = 0, rc = 0, mixer_width = 0, i, z_pos; + + struct dpu_multirect_plane_states multirect_plane[DPU_STAGE_MAX * 2]; + int multirect_count = 0; + const struct drm_plane_state *pipe_staged[SSPP_MAX]; + int left_zpos_cnt = 0, right_zpos_cnt = 0; + struct drm_rect crtc_rect = { 0 }; + bool needs_dirtyfb = dpu_crtc_needs_dirtyfb(crtc_state); + + pstates = kzalloc(sizeof(*pstates) * DPU_STAGE_MAX * 4, GFP_KERNEL); + if (!pstates) + return -ENOMEM; + + if (!crtc_state->enable || !crtc_state->active) { + DRM_DEBUG_ATOMIC("crtc%d -> enable %d, active %d, skip atomic_check\n", + crtc->base.id, crtc_state->enable, + crtc_state->active); + memset(&cstate->new_perf, 0, sizeof(cstate->new_perf)); + goto end; + } + + mode = &crtc_state->adjusted_mode; + DRM_DEBUG_ATOMIC("%s: check\n", dpu_crtc->name); + + /* force a full mode set if active state changed */ + if (crtc_state->active_changed) + crtc_state->mode_changed = true; + + memset(pipe_staged, 0, sizeof(pipe_staged)); + + if (cstate->num_mixers) { + mixer_width = mode->hdisplay / cstate->num_mixers; + + _dpu_crtc_setup_lm_bounds(crtc, crtc_state); + } + + crtc_rect.x2 = mode->hdisplay; + crtc_rect.y2 = mode->vdisplay; + + /* get plane state for all drm planes associated with crtc state */ + drm_atomic_crtc_state_for_each_plane_state(plane, pstate, crtc_state) { + struct dpu_plane_state *dpu_pstate = to_dpu_plane_state(pstate); + struct drm_rect dst, clip = crtc_rect; + + if (IS_ERR_OR_NULL(pstate)) { + rc = PTR_ERR(pstate); + DPU_ERROR("%s: failed to get plane%d state, %d\n", + dpu_crtc->name, plane->base.id, rc); + goto end; + } + if (cnt >= DPU_STAGE_MAX * 4) + continue; + + if (!pstate->visible) + continue; + + pstates[cnt].dpu_pstate = dpu_pstate; + pstates[cnt].drm_pstate = pstate; + pstates[cnt].stage = pstate->normalized_zpos; + pstates[cnt].pipe_id = dpu_plane_pipe(plane); + + dpu_pstate->needs_dirtyfb = needs_dirtyfb; + + if (pipe_staged[pstates[cnt].pipe_id]) { + multirect_plane[multirect_count].r0 = + pipe_staged[pstates[cnt].pipe_id]; + multirect_plane[multirect_count].r1 = pstate; + multirect_count++; + + pipe_staged[pstates[cnt].pipe_id] = NULL; + } else { + pipe_staged[pstates[cnt].pipe_id] = pstate; + } + + cnt++; + + dst = drm_plane_state_dest(pstate); + if (!drm_rect_intersect(&clip, &dst)) { + DPU_ERROR("invalid vertical/horizontal destination\n"); + DPU_ERROR("display: " DRM_RECT_FMT " plane: " + DRM_RECT_FMT "\n", DRM_RECT_ARG(&crtc_rect), + DRM_RECT_ARG(&dst)); + rc = -E2BIG; + goto end; + } + } + + for (i = 1; i < SSPP_MAX; i++) { + if (pipe_staged[i]) + dpu_plane_clear_multirect(pipe_staged[i]); + } + + z_pos = -1; + for (i = 0; i < cnt; i++) { + /* reset counts at every new blend stage */ + if (pstates[i].stage != z_pos) { + left_zpos_cnt = 0; + right_zpos_cnt = 0; + z_pos = pstates[i].stage; + } + + /* verify z_pos setting before using it */ + if (z_pos >= DPU_STAGE_MAX - DPU_STAGE_0) { + DPU_ERROR("> %d plane stages assigned\n", + DPU_STAGE_MAX - DPU_STAGE_0); + rc = -EINVAL; + goto end; + } else if (pstates[i].drm_pstate->crtc_x < mixer_width) { + if (left_zpos_cnt == 2) { + DPU_ERROR("> 2 planes @ stage %d on left\n", + z_pos); + rc = -EINVAL; + goto end; + } + left_zpos_cnt++; + + } else { + if (right_zpos_cnt == 2) { + DPU_ERROR("> 2 planes @ stage %d on right\n", + z_pos); + rc = -EINVAL; + goto end; + } + right_zpos_cnt++; + } + + pstates[i].dpu_pstate->stage = z_pos + DPU_STAGE_0; + DRM_DEBUG_ATOMIC("%s: zpos %d\n", dpu_crtc->name, z_pos); + } + + for (i = 0; i < multirect_count; i++) { + if (dpu_plane_validate_multirect_v2(&multirect_plane[i])) { + DPU_ERROR( + "multirect validation failed for planes (%d - %d)\n", + multirect_plane[i].r0->plane->base.id, + multirect_plane[i].r1->plane->base.id); + rc = -EINVAL; + goto end; + } + } + + atomic_inc(&_dpu_crtc_get_kms(crtc)->bandwidth_ref); + + rc = dpu_core_perf_crtc_check(crtc, crtc_state); + if (rc) { + DPU_ERROR("crtc%d failed performance check %d\n", + crtc->base.id, rc); + goto end; + } + + /* validate source split: + * use pstates sorted by stage to check planes on same stage + * we assume that all pipes are in source split so its valid to compare + * without taking into account left/right mixer placement + */ + for (i = 1; i < cnt; i++) { + struct plane_state *prv_pstate, *cur_pstate; + struct drm_rect left_rect, right_rect; + int32_t left_pid, right_pid; + int32_t stage; + + prv_pstate = &pstates[i - 1]; + cur_pstate = &pstates[i]; + if (prv_pstate->stage != cur_pstate->stage) + continue; + + stage = cur_pstate->stage; + + left_pid = prv_pstate->dpu_pstate->base.plane->base.id; + left_rect = drm_plane_state_dest(prv_pstate->drm_pstate); + + right_pid = cur_pstate->dpu_pstate->base.plane->base.id; + right_rect = drm_plane_state_dest(cur_pstate->drm_pstate); + + if (right_rect.x1 < left_rect.x1) { + swap(left_pid, right_pid); + swap(left_rect, right_rect); + } + + /** + * - planes are enumerated in pipe-priority order such that + * planes with lower drm_id must be left-most in a shared + * blend-stage when using source split. + * - planes in source split must be contiguous in width + * - planes in source split must have same dest yoff and height + */ + if (right_pid < left_pid) { + DPU_ERROR( + "invalid src split cfg. priority mismatch. stage: %d left: %d right: %d\n", + stage, left_pid, right_pid); + rc = -EINVAL; + goto end; + } else if (right_rect.x1 != drm_rect_width(&left_rect)) { + DPU_ERROR("non-contiguous coordinates for src split. " + "stage: %d left: " DRM_RECT_FMT " right: " + DRM_RECT_FMT "\n", stage, + DRM_RECT_ARG(&left_rect), + DRM_RECT_ARG(&right_rect)); + rc = -EINVAL; + goto end; + } else if (left_rect.y1 != right_rect.y1 || + drm_rect_height(&left_rect) != drm_rect_height(&right_rect)) { + DPU_ERROR("source split at stage: %d. invalid " + "yoff/height: left: " DRM_RECT_FMT " right: " + DRM_RECT_FMT "\n", stage, + DRM_RECT_ARG(&left_rect), + DRM_RECT_ARG(&right_rect)); + rc = -EINVAL; + goto end; + } + } + +end: + kfree(pstates); + return rc; +} + +int dpu_crtc_vblank(struct drm_crtc *crtc, bool en) +{ + struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc); + struct drm_encoder *enc; + + trace_dpu_crtc_vblank(DRMID(&dpu_crtc->base), en, dpu_crtc); + + /* + * Normally we would iterate through encoder_mask in crtc state to find + * attached encoders. In this case, we might be disabling vblank _after_ + * encoder_mask has been cleared. + * + * Instead, we "assign" a crtc to the encoder in enable and clear it in + * disable (which is also after encoder_mask is cleared). So instead of + * using encoder mask, we'll ask the encoder to toggle itself iff it's + * currently assigned to our crtc. + * + * Note also that this function cannot be called while crtc is disabled + * since we use drm_crtc_vblank_on/off. So we don't need to worry + * about the assigned crtcs being inconsistent with the current state + * (which means no need to worry about modeset locks). + */ + list_for_each_entry(enc, &crtc->dev->mode_config.encoder_list, head) { + trace_dpu_crtc_vblank_enable(DRMID(crtc), DRMID(enc), en, + dpu_crtc); + + dpu_encoder_toggle_vblank_for_crtc(enc, crtc, en); + } + + return 0; +} + +#ifdef CONFIG_DEBUG_FS +static int _dpu_debugfs_status_show(struct seq_file *s, void *data) +{ + struct dpu_crtc *dpu_crtc; + struct dpu_plane_state *pstate = NULL; + struct dpu_crtc_mixer *m; + + struct drm_crtc *crtc; + struct drm_plane *plane; + struct drm_display_mode *mode; + struct drm_framebuffer *fb; + struct drm_plane_state *state; + struct dpu_crtc_state *cstate; + + int i, out_width; + + dpu_crtc = s->private; + crtc = &dpu_crtc->base; + + drm_modeset_lock_all(crtc->dev); + cstate = to_dpu_crtc_state(crtc->state); + + mode = &crtc->state->adjusted_mode; + out_width = mode->hdisplay / cstate->num_mixers; + + seq_printf(s, "crtc:%d width:%d height:%d\n", crtc->base.id, + mode->hdisplay, mode->vdisplay); + + seq_puts(s, "\n"); + + for (i = 0; i < cstate->num_mixers; ++i) { + m = &cstate->mixers[i]; + seq_printf(s, "\tmixer:%d ctl:%d width:%d height:%d\n", + m->hw_lm->idx - LM_0, m->lm_ctl->idx - CTL_0, + out_width, mode->vdisplay); + } + + seq_puts(s, "\n"); + + drm_atomic_crtc_for_each_plane(plane, crtc) { + pstate = to_dpu_plane_state(plane->state); + state = plane->state; + + if (!pstate || !state) + continue; + + seq_printf(s, "\tplane:%u stage:%d\n", plane->base.id, + pstate->stage); + + if (plane->state->fb) { + fb = plane->state->fb; + + seq_printf(s, "\tfb:%d image format:%4.4s wxh:%ux%u ", + fb->base.id, (char *) &fb->format->format, + fb->width, fb->height); + for (i = 0; i < ARRAY_SIZE(fb->format->cpp); ++i) + seq_printf(s, "cpp[%d]:%u ", + i, fb->format->cpp[i]); + seq_puts(s, "\n\t"); + + seq_printf(s, "modifier:%8llu ", fb->modifier); + seq_puts(s, "\n"); + + seq_puts(s, "\t"); + for (i = 0; i < ARRAY_SIZE(fb->pitches); i++) + seq_printf(s, "pitches[%d]:%8u ", i, + fb->pitches[i]); + seq_puts(s, "\n"); + + seq_puts(s, "\t"); + for (i = 0; i < ARRAY_SIZE(fb->offsets); i++) + seq_printf(s, "offsets[%d]:%8u ", i, + fb->offsets[i]); + seq_puts(s, "\n"); + } + + seq_printf(s, "\tsrc_x:%4d src_y:%4d src_w:%4d src_h:%4d\n", + state->src_x, state->src_y, state->src_w, state->src_h); + + seq_printf(s, "\tdst x:%4d dst_y:%4d dst_w:%4d dst_h:%4d\n", + state->crtc_x, state->crtc_y, state->crtc_w, + state->crtc_h); + seq_printf(s, "\tmultirect: mode: %d index: %d\n", + pstate->multirect_mode, pstate->multirect_index); + + seq_puts(s, "\n"); + } + if (dpu_crtc->vblank_cb_count) { + ktime_t diff = ktime_sub(ktime_get(), dpu_crtc->vblank_cb_time); + s64 diff_ms = ktime_to_ms(diff); + s64 fps = diff_ms ? div_s64( + dpu_crtc->vblank_cb_count * 1000, diff_ms) : 0; + + seq_printf(s, + "vblank fps:%lld count:%u total:%llums total_framecount:%llu\n", + fps, dpu_crtc->vblank_cb_count, + ktime_to_ms(diff), dpu_crtc->play_count); + + /* reset time & count for next measurement */ + dpu_crtc->vblank_cb_count = 0; + dpu_crtc->vblank_cb_time = ktime_set(0, 0); + } + + drm_modeset_unlock_all(crtc->dev); + + return 0; +} + +DEFINE_SHOW_ATTRIBUTE(_dpu_debugfs_status); + +static int dpu_crtc_debugfs_state_show(struct seq_file *s, void *v) +{ + struct drm_crtc *crtc = (struct drm_crtc *) s->private; + struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc); + + seq_printf(s, "client type: %d\n", dpu_crtc_get_client_type(crtc)); + seq_printf(s, "intf_mode: %d\n", dpu_crtc_get_intf_mode(crtc)); + seq_printf(s, "core_clk_rate: %llu\n", + dpu_crtc->cur_perf.core_clk_rate); + seq_printf(s, "bw_ctl: %llu\n", dpu_crtc->cur_perf.bw_ctl); + seq_printf(s, "max_per_pipe_ib: %llu\n", + dpu_crtc->cur_perf.max_per_pipe_ib); + + return 0; +} +DEFINE_SHOW_ATTRIBUTE(dpu_crtc_debugfs_state); + +static int _dpu_crtc_init_debugfs(struct drm_crtc *crtc) +{ + struct dpu_crtc *dpu_crtc = to_dpu_crtc(crtc); + struct dentry *debugfs_root; + + debugfs_root = debugfs_create_dir(dpu_crtc->name, + crtc->dev->primary->debugfs_root); + + debugfs_create_file("status", 0400, + debugfs_root, + dpu_crtc, &_dpu_debugfs_status_fops); + debugfs_create_file("state", 0600, + debugfs_root, + &dpu_crtc->base, + &dpu_crtc_debugfs_state_fops); + + return 0; +} +#else +static int _dpu_crtc_init_debugfs(struct drm_crtc *crtc) +{ + return 0; +} +#endif /* CONFIG_DEBUG_FS */ + +static int dpu_crtc_late_register(struct drm_crtc *crtc) +{ + return _dpu_crtc_init_debugfs(crtc); +} + +static const struct drm_crtc_funcs dpu_crtc_funcs = { + .set_config = drm_atomic_helper_set_config, + .destroy = dpu_crtc_destroy, + .page_flip = drm_atomic_helper_page_flip, + .reset = dpu_crtc_reset, + .atomic_duplicate_state = dpu_crtc_duplicate_state, + .atomic_destroy_state = dpu_crtc_destroy_state, + .atomic_print_state = dpu_crtc_atomic_print_state, + .late_register = dpu_crtc_late_register, + .verify_crc_source = dpu_crtc_verify_crc_source, + .set_crc_source = dpu_crtc_set_crc_source, + .enable_vblank = msm_crtc_enable_vblank, + .disable_vblank = msm_crtc_disable_vblank, + .get_vblank_timestamp = drm_crtc_vblank_helper_get_vblank_timestamp, + .get_vblank_counter = dpu_crtc_get_vblank_counter, +}; + +static const struct drm_crtc_helper_funcs dpu_crtc_helper_funcs = { + .atomic_disable = dpu_crtc_disable, + .atomic_enable = dpu_crtc_enable, + .atomic_check = dpu_crtc_atomic_check, + .atomic_begin = dpu_crtc_atomic_begin, + .atomic_flush = dpu_crtc_atomic_flush, + .get_scanout_position = dpu_crtc_get_scanout_position, +}; + +/* initialize crtc */ +struct drm_crtc *dpu_crtc_init(struct drm_device *dev, struct drm_plane *plane, + struct drm_plane *cursor) +{ + struct msm_drm_private *priv = dev->dev_private; + struct dpu_kms *dpu_kms = to_dpu_kms(priv->kms); + struct drm_crtc *crtc = NULL; + struct dpu_crtc *dpu_crtc = NULL; + int i; + + dpu_crtc = kzalloc(sizeof(*dpu_crtc), GFP_KERNEL); + if (!dpu_crtc) + return ERR_PTR(-ENOMEM); + + crtc = &dpu_crtc->base; + crtc->dev = dev; + + spin_lock_init(&dpu_crtc->spin_lock); + atomic_set(&dpu_crtc->frame_pending, 0); + + init_completion(&dpu_crtc->frame_done_comp); + + INIT_LIST_HEAD(&dpu_crtc->frame_event_list); + + for (i = 0; i < ARRAY_SIZE(dpu_crtc->frame_events); i++) { + INIT_LIST_HEAD(&dpu_crtc->frame_events[i].list); + list_add(&dpu_crtc->frame_events[i].list, + &dpu_crtc->frame_event_list); + kthread_init_work(&dpu_crtc->frame_events[i].work, + dpu_crtc_frame_event_work); + } + + drm_crtc_init_with_planes(dev, crtc, plane, cursor, &dpu_crtc_funcs, + NULL); + + drm_crtc_helper_add(crtc, &dpu_crtc_helper_funcs); + + if (dpu_kms->catalog->dspp_count) + drm_crtc_enable_color_mgmt(crtc, 0, true, 0); + + /* save user friendly CRTC name for later */ + snprintf(dpu_crtc->name, DPU_CRTC_NAME_SIZE, "crtc%u", crtc->base.id); + + /* initialize event handling */ + spin_lock_init(&dpu_crtc->event_lock); + + DRM_DEBUG_KMS("%s: successfully initialized crtc\n", dpu_crtc->name); + return crtc; +} |