[PATCH v5 14/32] drm/msm/dpu: drop src_split and multirect check from dpu_crtc_atomic_check
Dmitry Baryshkov
dmitry.baryshkov at linaro.org
Fri Mar 10 00:56:46 UTC 2023
Neither source split nor multirect are properly supported at this
moment. Both of these checks depend on normalized_zpos being equal for
several planes (which is never the case for normalized zpos).
Drop these checks to simplify dpu_crtc_atomic_check(). The actual
support for either of these features is not removed from the backend
code (sspp, ctl, etc).
Reviewed-by: Abhinav Kumar <quic_abhinavk at quicinc.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov at linaro.org>
---
drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c | 168 ++---------------------
1 file changed, 12 insertions(+), 156 deletions(-)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
index 037347e51eb8..c1579d6f5060 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_crtc.c
@@ -1108,13 +1108,6 @@ static void dpu_crtc_enable(struct drm_crtc *crtc,
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;
@@ -1136,31 +1129,22 @@ static int dpu_crtc_atomic_check(struct drm_crtc *crtc,
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;
+ int rc = 0;
- 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;
+ return 0;
}
mode = &crtc_state->adjusted_mode;
@@ -1170,13 +1154,8 @@ static int dpu_crtc_atomic_check(struct drm_crtc *crtc,
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;
-
+ if (cstate->num_mixers)
_dpu_crtc_setup_lm_bounds(crtc, crtc_state);
- }
crtc_rect.x2 = mode->hdisplay;
crtc_rect.y2 = mode->vdisplay;
@@ -1185,38 +1164,21 @@ static int dpu_crtc_atomic_check(struct drm_crtc *crtc,
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;
+ int z_pos;
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;
+ return rc;
}
- 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 = to_dpu_plane_state(pstate)->pipe.sspp->idx;
-
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++;
+ dpu_plane_clear_multirect(pstate);
dst = drm_plane_state_dest(pstate);
if (!drm_rect_intersect(&clip, &dst)) {
@@ -1224,63 +1186,21 @@ static int dpu_crtc_atomic_check(struct drm_crtc *crtc,
DPU_ERROR("display: " DRM_RECT_FMT " plane: "
DRM_RECT_FMT "\n", DRM_RECT_ARG(&crtc_rect),
DRM_RECT_ARG(&dst));
- rc = -E2BIG;
- goto end;
+ return -E2BIG;
}
- }
- 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;
- }
+ z_pos = pstate->normalized_zpos;
/* 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++;
+ return -EINVAL;
}
- pstates[i].dpu_pstate->stage = z_pos + DPU_STAGE_0;
+ to_dpu_plane_state(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);
@@ -1289,74 +1209,10 @@ static int dpu_crtc_atomic_check(struct drm_crtc *crtc,
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;
- }
+ return rc;
}
-end:
- kfree(pstates);
- return rc;
+ return 0;
}
int dpu_crtc_vblank(struct drm_crtc *crtc, bool en)
--
2.39.2
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