On Tue, Sep 11, 2018 at 03:44:48PM -0700, Jeykumar Sankaran wrote:
> On 2018-09-11 13:15, Sean Paul wrote:
> > From: Sean Paul <seanp...@chromium.org>
> >
> > src/dst rects are checked in both atomic_check and atomic_update, with
> > the more comprehensive check occurring in atomic_update, which is
> > backwards. So consolodate the checks in atomic_check.
> >
> > Signed-off-by: Sean Paul <seanp...@chromium.org>
> > ---
> > drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c | 56 +++++++----------------
> > 1 file changed, 16 insertions(+), 40 deletions(-)
> >
> > diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
> > b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
> > index 0f428f66b951..853902ac4fb9 100644
> > --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
> > +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c
> > @@ -1079,13 +1079,26 @@ static bool dpu_plane_validate_src(struct
> > drm_rect
> > *src,
> > static int dpu_plane_sspp_atomic_check(struct drm_plane *plane,
> > struct drm_plane_state *state)
> > {
> > - int ret = 0;
> > + int ret = 0, min_scale;
> > struct dpu_plane *pdpu = to_dpu_plane(plane);
> > + const struct drm_crtc_state *crtc_state = NULL;
> > const struct dpu_format *fmt;
> > struct drm_rect src, dst, fb_rect = { 0 };
> > - uint32_t max_upscale = 1, max_downscale = 1;
> > uint32_t min_src_size, max_linewidth;
> > - int hscale = 1, vscale = 1;
> > +
> > + if (state->crtc)
> > + crtc_state = state->crtc->state;
> Isn't the crtc_state retrieved here the old crtc state? Since the plane
> check is called before swap, the CRTC state
> for this commit should be retrieved from global atomic state state->state
> using drm_atomic_get_existing_crtc_state.
Yep, nice catch. I'll send a v2 using drm_atomic_get_new_crtc_state.
Sean
>
> Jeykumar S.
> > +
> > + min_scale = FRAC_16_16(1, pdpu->pipe_sblk->maxdwnscale);
> > + ret = drm_atomic_helper_check_plane_state(state, crtc_state,
> > min_scale,
> > + pdpu->pipe_sblk->maxupscale <<
> > 16,
> > + true, true);
> > + if (ret) {
> > + DPU_ERROR_PLANE(pdpu, "Check plane state failed (%d)\n",
> > ret);
> > + return ret;
> > + }
> > + if (!state->visible)
> > + return 0;
> >
> > src.x1 = state->src_x >> 16;
> > src.y1 = state->src_y >> 16;
> > @@ -1099,25 +1112,6 @@ static int dpu_plane_sspp_atomic_check(struct
> > drm_plane *plane,
> >
> > max_linewidth = pdpu->pipe_sblk->common->maxlinewidth;
> >
> > - if (pdpu->features & DPU_SSPP_SCALER) {
> > - max_downscale = pdpu->pipe_sblk->maxdwnscale;
> > - max_upscale = pdpu->pipe_sblk->maxupscale;
> > - }
> > - if (drm_rect_width(&src) < drm_rect_width(&dst))
> > - hscale = drm_rect_calc_hscale(&src, &dst, 1, max_upscale);
> > - else
> > - hscale = drm_rect_calc_hscale(&dst, &src, 1,
> > max_downscale);
> > - if (drm_rect_height(&src) < drm_rect_height(&dst))
> > - vscale = drm_rect_calc_vscale(&src, &dst, 1, max_upscale);
> > - else
> > - vscale = drm_rect_calc_vscale(&dst, &src, 1,
> > max_downscale);
> > -
> > - DPU_DEBUG_PLANE(pdpu, "check %d -> %d\n",
> > - dpu_plane_enabled(plane->state),
> > dpu_plane_enabled(state));
> > -
> > - if (!dpu_plane_enabled(state))
> > - goto exit;
> > -
> > fmt = to_dpu_format(msm_framebuffer_format(state->fb));
> >
> > min_src_size = DPU_FORMAT_IS_YUV(fmt) ? 2 : 1;
> > @@ -1156,16 +1150,8 @@ static int dpu_plane_sspp_atomic_check(struct
> > drm_plane *plane,
> > DPU_ERROR_PLANE(pdpu, "invalid src " DRM_RECT_FMT "
> > line:%u\n",
> > DRM_RECT_ARG(&src), max_linewidth);
> > ret = -E2BIG;
> > -
> > - /* check scaler capability */
> > - } else if (hscale < 0 || vscale < 0) {
> > - DPU_ERROR_PLANE(pdpu, "invalid scaling requested src="
> > - DRM_RECT_FMT " dst=" DRM_RECT_FMT "\n",
> > - DRM_RECT_ARG(&src), DRM_RECT_ARG(&dst));
> > - ret = -E2BIG;
> > }
> >
> > -exit:
> > return ret;
> > }
> >
> > @@ -1237,7 +1223,6 @@ static int dpu_plane_sspp_atomic_update(struct
> > drm_plane *plane,
> > const struct dpu_format *fmt;
> > struct drm_crtc *crtc;
> > struct drm_framebuffer *fb;
> > - int ret, min_scale;
> >
> > if (!plane) {
> > DPU_ERROR("invalid plane\n");
> > @@ -1276,15 +1261,6 @@ static int dpu_plane_sspp_atomic_update(struct
> > drm_plane *plane,
> > pdpu->is_rt_pipe = (dpu_crtc_get_client_type(crtc) != NRT_CLIENT);
> > _dpu_plane_set_qos_ctrl(plane, false, DPU_PLANE_QOS_PANIC_CTRL);
> >
> > - min_scale = FRAC_16_16(1, pdpu->pipe_sblk->maxdwnscale);
> > - ret = drm_atomic_helper_check_plane_state(state, crtc->state,
> > min_scale,
> > - pdpu->pipe_sblk->maxupscale <<
> > 16,
> > - true, false);
> > - if (ret) {
> > - DPU_ERROR_PLANE(pdpu, "Check plane state failed (%d)\n",
> > ret);
> > - return ret;
> > - }
> > -
> > DPU_DEBUG_PLANE(pdpu, "FB[%u] " DRM_RECT_FP_FMT "->crtc%u "
> > DRM_RECT_FMT
> > ", %4.4s ubwc %d\n", fb->base.id,
> > DRM_RECT_FP_ARG(&state->src),
> > crtc->base.id, DRM_RECT_ARG(&state->dst),
>
> --
> Jeykumar S
--
Sean Paul, Software Engineer, Google / Chromium OS
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