| Message ID | 20240614-dpu-mode-config-width-v3-6-29ec4069c99b@linaro.org |
|---|---|
| State | New |
| Headers | show |
| Series | drm/msm/dpu: be more friendly to X.org | expand |
On 6/13/2024 3:36 PM, Dmitry Baryshkov wrote: > Check that the plane pitch doesn't overflow the maximum pitch size > allowed by the hardware. > > Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com> > Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org> > --- > drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h | 2 ++ > drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c | 6 +++++- > 2 files changed, 7 insertions(+), 1 deletion(-) > Tested-by: Abhinav Kumar <quic_abhinavk@quicinc.com> # sc7280
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h index 4a910b808687..8998d1862e16 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_hw_sspp.h @@ -12,6 +12,8 @@ struct dpu_hw_sspp; +#define DPU_SSPP_MAX_PITCH_SIZE 0xffff + /** * Flags */ diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c index 927fde2f1391..b5848fae14ce 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_plane.c @@ -791,7 +791,7 @@ static int dpu_plane_atomic_check(struct drm_plane *plane, { struct drm_plane_state *new_plane_state = drm_atomic_get_new_plane_state(state, plane); - int ret = 0, min_scale; + int i, ret = 0, min_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; @@ -865,6 +865,10 @@ static int dpu_plane_atomic_check(struct drm_plane *plane, return ret; } + for (i = 0; i < pstate->layout.num_planes; i++) + if (pstate->layout.plane_pitch[i] > DPU_SSPP_MAX_PITCH_SIZE) + return -E2BIG; + fmt = msm_framebuffer_format(new_plane_state->fb); max_linewidth = pdpu->catalog->caps->max_linewidth;