Pipe scaler on gen9 destination size may go out of adjusted modeset
size.This patch add limit check on user custom crtc destination size and
clamp it within modeset size.
Signed-off-by: Nabendu Maiti <nabendu.bikash.ma...@intel.com>
---
drivers/gpu/drm/i915/intel_display.c | 11 +++++++++++
1 file changed, 11 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_display.c
b/drivers/gpu/drm/i915/intel_display.c
index 15d185e..45e5204 100644
--- a/drivers/gpu/drm/i915/intel_display.c
+++ b/drivers/gpu/drm/i915/intel_display.c
@@ -12565,6 +12565,17 @@ intel_gen9_pipe_scale(struct intel_crtc *intel_crtc,
pipe_config->pipe_src_w))
goto done;
+ /* Out of boundary, clamping it */
+ if ((pipe_config->pipe_dst_x + pipe_config->pipe_dst_w) >
+ adjusted_mode->hdisplay)
+ pipe_config->pipe_dst_w =
+ (adjusted_mode->hdisplay - pipe_config->pipe_dst_x);
+
+ if ((pipe_config->pipe_dst_y + pipe_config->pipe_dst_h) >
+ adjusted_mode->vdisplay)
+ pipe_config->pipe_dst_h =
+ (adjusted_mode->vdisplay - pipe_config->pipe_dst_y);
+
x = pipe_config->pipe_dst_x;
y = pipe_config->pipe_dst_y;
width = pipe_config->pipe_dst_w;
--
1.9.1
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