On 6/26/2024 2:46 PM, Dmitry Baryshkov wrote:
Split dpu_plane_atomic_check() function into two pieces:
dpu_plane_atomic_check_nopipe() performing generic checks on the pstate,
without touching the associated pipe,
and
dpu_plane_atomic_check_pipes(), which takes into account used pipes.
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@xxxxxxxxxx>
---
drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c | 178 +++++++++++++++++++-----------
1 file changed, 112 insertions(+), 66 deletions(-)
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
index 115c1bd77bdd..9b9fe28052ad 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
@@ -788,49 +788,22 @@ static int dpu_plane_atomic_check_pipe(struct dpu_plane *pdpu,
#define MAX_UPSCALE_RATIO 20
#define MAX_DOWNSCALE_RATIO 4
-static int dpu_plane_atomic_check(struct drm_plane *plane,
- struct drm_atomic_state *state)
+static int dpu_plane_atomic_check_nopipe(struct drm_plane *plane,
+ struct drm_plane_state *new_plane_state,
+ const struct drm_crtc_state *crtc_state)
{
- struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state,
- plane);
int ret = 0, min_scale, max_scale;
struct dpu_plane *pdpu = to_dpu_plane(plane);
struct dpu_kms *kms = _dpu_plane_get_kms(&pdpu->base);
u64 max_mdp_clk_rate = kms->perf.max_core_clk_rate;
struct dpu_plane_state *pstate = to_dpu_plane_state(new_plane_state);
- struct dpu_sw_pipe *pipe = &pstate->pipe;
- struct dpu_sw_pipe *r_pipe = &pstate->r_pipe;
- const struct drm_crtc_state *crtc_state = NULL;
- const struct msm_format *fmt;
struct dpu_sw_pipe_cfg *pipe_cfg = &pstate->pipe_cfg;
struct dpu_sw_pipe_cfg *r_pipe_cfg = &pstate->r_pipe_cfg;
struct drm_rect fb_rect = { 0 };
uint32_t max_linewidth;
- unsigned int rotation;
- uint32_t supported_rotations;
- const struct dpu_sspp_cfg *pipe_hw_caps;
- const struct dpu_sspp_sub_blks *sblk;
-
- if (new_plane_state->crtc)
- crtc_state = drm_atomic_get_new_crtc_state(state,
- new_plane_state->crtc);
-
- pipe->sspp = dpu_rm_get_sspp(&kms->rm, pdpu->pipe);
- r_pipe->sspp = NULL;
- if (!pipe->sspp)
- return -EINVAL;
-
- pipe_hw_caps = pipe->sspp->cap;
- sblk = pipe->sspp->cap->sblk;
-
- if (sblk->scaler_blk.len) {
- min_scale = FRAC_16_16(1, MAX_UPSCALE_RATIO);
- max_scale = MAX_DOWNSCALE_RATIO << 16;
- } else {
- min_scale = DRM_PLANE_NO_SCALING;
- max_scale = DRM_PLANE_NO_SCALING;
- }
+ min_scale = FRAC_16_16(1, MAX_UPSCALE_RATIO);
+ max_scale = MAX_DOWNSCALE_RATIO << 16;
ret = drm_atomic_helper_check_plane_state(new_plane_state, crtc_state,
min_scale,
@@ -843,11 +816,6 @@ static int dpu_plane_atomic_check(struct drm_plane *plane,
if (!new_plane_state->visible)
return 0;
- pipe->multirect_index = DPU_SSPP_RECT_SOLO;
- pipe->multirect_mode = DPU_SSPP_MULTIRECT_NONE;
- r_pipe->multirect_index = DPU_SSPP_RECT_SOLO;
- r_pipe->multirect_mode = DPU_SSPP_MULTIRECT_NONE;
-
pstate->stage = DPU_STAGE_0 + pstate->base.normalized_zpos;
if (pstate->stage >= pdpu->catalog->caps->max_mixer_blendstages) {
DPU_ERROR("> %d plane stages assigned\n",
@@ -871,8 +839,6 @@ static int dpu_plane_atomic_check(struct drm_plane *plane,
return -E2BIG;
}
- fmt = msm_framebuffer_format(new_plane_state->fb);
-
max_linewidth = pdpu->catalog->caps->max_linewidth;
drm_rect_rotate(&pipe_cfg->src_rect,
@@ -881,6 +847,78 @@ static int dpu_plane_atomic_check(struct drm_plane *plane,
if ((drm_rect_width(&pipe_cfg->src_rect) > max_linewidth) ||
_dpu_plane_calc_clk(&crtc_state->adjusted_mode, pipe_cfg) > max_mdp_clk_rate) {
+ if (drm_rect_width(&pipe_cfg->src_rect) > 2 * max_linewidth) {
+ DPU_DEBUG_PLANE(pdpu, "invalid src " DRM_RECT_FMT " line:%u\n",
+ DRM_RECT_ARG(&pipe_cfg->src_rect), max_linewidth);
+ return -E2BIG;
+ }
+
+ *r_pipe_cfg = *pipe_cfg;
+ pipe_cfg->src_rect.x2 = (pipe_cfg->src_rect.x1 + pipe_cfg->src_rect.x2) >> 1;
+ pipe_cfg->dst_rect.x2 = (pipe_cfg->dst_rect.x1 + pipe_cfg->dst_rect.x2) >> 1;
+ r_pipe_cfg->src_rect.x1 = pipe_cfg->src_rect.x2;
+ r_pipe_cfg->dst_rect.x1 = pipe_cfg->dst_rect.x2;
+ } else {
+ memset(r_pipe_cfg, 0, sizeof(*r_pipe_cfg));
+ }
+
This is the part I am not able to fully understand. Assignment of
r_pipe_cfg is also pipe related so why should that move to
dpu_plane_atomic_check_nopipe(). It should be part of
dpu_plane_atomic_check_pipe().
+ drm_rect_rotate_inv(&pipe_cfg->src_rect,
+ new_plane_state->fb->width, new_plane_state->fb->height,
+ new_plane_state->rotation);
+ if (r_pipe_cfg->src_rect.x1 != 0)
+ drm_rect_rotate_inv(&r_pipe_cfg->src_rect,
+ new_plane_state->fb->width, new_plane_state->fb->height,
+ new_plane_state->rotation);
+
+ pstate->needs_qos_remap = drm_atomic_crtc_needs_modeset(crtc_state);
+
+ return 0;
+}
+
+static int dpu_plane_atomic_check_pipes(struct drm_plane *plane,
+ struct drm_atomic_state *state,
+ const struct drm_crtc_state *crtc_state)
+{
+ struct drm_plane_state *new_plane_state =
+ drm_atomic_get_new_plane_state(state, plane);
+ struct dpu_plane *pdpu = to_dpu_plane(plane);
+ struct dpu_plane_state *pstate = to_dpu_plane_state(new_plane_state);
+ struct dpu_sw_pipe *pipe = &pstate->pipe;
+ struct dpu_sw_pipe *r_pipe = &pstate->r_pipe;
+ const struct msm_format *fmt;
+ struct dpu_sw_pipe_cfg *pipe_cfg = &pstate->pipe_cfg;
+ struct dpu_sw_pipe_cfg *r_pipe_cfg = &pstate->r_pipe_cfg;
+ uint32_t max_linewidth;
+ unsigned int rotation;
+ uint32_t supported_rotations;
+ const struct dpu_sspp_cfg *pipe_hw_caps;
+ const struct dpu_sspp_sub_blks *sblk;
+ int ret = 0;
+
+ pipe_hw_caps = pipe->sspp->cap;
+ sblk = pipe->sspp->cap->sblk;
+
+ /*
+ * We already have verified scaling against platform limitations.
+ * Now check if the SSPP supports scaling at all.
+ */
+ if (!sblk->scaler_blk.len &&
+ ((drm_rect_width(&new_plane_state->src) >> 16 !=
+ drm_rect_width(&new_plane_state->dst)) ||
+ (drm_rect_height(&new_plane_state->src) >> 16 !=
+ drm_rect_height(&new_plane_state->dst))))
+ return -ERANGE;
+
Should this part be retained under dpu_plane_atomic_check_nopipe()?
This is also not pipe dependent.
+ fmt = msm_framebuffer_format(new_plane_state->fb);
+
+ max_linewidth = pdpu->catalog->caps->max_linewidth;
+
+ ret = dpu_plane_atomic_check_pipe(pdpu, pipe, pipe_cfg, fmt,
+ &crtc_state->adjusted_mode);
+ if (ret)
+ return ret;
+
+ if (drm_rect_width(&r_pipe_cfg->src_rect) != 0) {
/*
* In parallel multirect case only the half of the usual width
* is supported for tiled formats. If we are here, we know that
@@ -894,12 +932,6 @@ static int dpu_plane_atomic_check(struct drm_plane *plane,
return -E2BIG;
}
- if (drm_rect_width(&pipe_cfg->src_rect) > 2 * max_linewidth) {
- DPU_DEBUG_PLANE(pdpu, "invalid src " DRM_RECT_FMT " line:%u\n",
- DRM_RECT_ARG(&pipe_cfg->src_rect), max_linewidth);
- return -E2BIG;
- }
-
if (drm_rect_width(&pipe_cfg->src_rect) != drm_rect_width(&pipe_cfg->dst_rect) ||
drm_rect_height(&pipe_cfg->src_rect) != drm_rect_height(&pipe_cfg->dst_rect) ||
(!test_bit(DPU_SSPP_SMART_DMA_V1, &pipe->sspp->cap->features) &&
@@ -921,26 +953,6 @@ static int dpu_plane_atomic_check(struct drm_plane *plane,
r_pipe->multirect_index = DPU_SSPP_RECT_1;
r_pipe->multirect_mode = DPU_SSPP_MULTIRECT_PARALLEL;
- *r_pipe_cfg = *pipe_cfg;
- pipe_cfg->src_rect.x2 = (pipe_cfg->src_rect.x1 + pipe_cfg->src_rect.x2) >> 1;
- pipe_cfg->dst_rect.x2 = (pipe_cfg->dst_rect.x1 + pipe_cfg->dst_rect.x2) >> 1;
- r_pipe_cfg->src_rect.x1 = pipe_cfg->src_rect.x2;
- r_pipe_cfg->dst_rect.x1 = pipe_cfg->dst_rect.x2;
- }
-
- drm_rect_rotate_inv(&pipe_cfg->src_rect,
- new_plane_state->fb->width, new_plane_state->fb->height,
- new_plane_state->rotation);
- if (r_pipe->sspp)
- drm_rect_rotate_inv(&r_pipe_cfg->src_rect,
- new_plane_state->fb->width, new_plane_state->fb->height,
- new_plane_state->rotation);
-
- ret = dpu_plane_atomic_check_pipe(pdpu, pipe, pipe_cfg, fmt, &crtc_state->adjusted_mode);
- if (ret)
- return ret;
-
- if (r_pipe->sspp) {
ret = dpu_plane_atomic_check_pipe(pdpu, r_pipe, r_pipe_cfg, fmt,
&crtc_state->adjusted_mode);
if (ret)
@@ -963,11 +975,45 @@ static int dpu_plane_atomic_check(struct drm_plane *plane,
}
pstate->rotation = rotation;
The dpu_plane_check_inline_rotation() is also pipe independent. So even
that goes to dpu_plane_atomic_check_nopipe()?
- pstate->needs_qos_remap = drm_atomic_crtc_needs_modeset(crtc_state);
return 0;
}
<snip>
