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authorChaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>2026-06-01 13:59:53 +0530
committerTvrtko Ursulin <tursulin@ursulin.net>2026-06-03 09:18:15 +0100
commit26eb7c0a7ab09d83eec833db6a5a2bc60b9d4d9a (patch)
tree739aa35f549efb4a258ded615b239d9c3781bd5e
parente43ffb69e0438cddd72aaa30898b4dc446f664f8 (diff)
drm/i915: Fix color blob reference handling in intel_plane_state
Take proper references for hw color blobs (degamma_lut, gamma_lut, ctm, lut_3d) in intel_plane_duplicate_state() and drop them in intel_plane_destroy_state(). v2: - handle blobs in hw state clear Cc: <stable@vger.kernel.org> #v6.19+ Fixes: 3b7476e786c2 ("drm/i915/color: Add framework to program PRE/POST CSC LUT") Fixes: a78f1b6baf4d ("drm/i915/color: Add framework to program CSC") Fixes: 65db7a1f9cf7 ("drm/i915/color: Add 3D LUT to color pipeline") Reviewed-by: Pranay Samala <pranay.samala@intel.com> #v1 Reviewed-by: Uma Shankar <uma.shankar@intel.com> Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com> Signed-off-by: Uma Shankar <uma.shankar@intel.com> Link: https://patch.msgid.link/20260601082953.128539-4-chaitanya.kumar.borah@intel.com (cherry picked from commit c6eea1925154b6697fe22b217faab9bb30635e6b) Signed-off-by: Tvrtko Ursulin <tursulin@ursulin.net>
-rw-r--r--drivers/gpu/drm/i915/display/intel_plane.c27
1 files changed, 27 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_plane.c b/drivers/gpu/drm/i915/display/intel_plane.c
index 82f445c83158..07eae4176dad 100644
--- a/drivers/gpu/drm/i915/display/intel_plane.c
+++ b/drivers/gpu/drm/i915/display/intel_plane.c
@@ -144,6 +144,15 @@ intel_plane_duplicate_state(struct drm_plane *plane)
if (intel_state->hw.fb)
drm_framebuffer_get(intel_state->hw.fb);
+ if (intel_state->hw.degamma_lut)
+ drm_property_blob_get(intel_state->hw.degamma_lut);
+ if (intel_state->hw.gamma_lut)
+ drm_property_blob_get(intel_state->hw.gamma_lut);
+ if (intel_state->hw.ctm)
+ drm_property_blob_get(intel_state->hw.ctm);
+ if (intel_state->hw.lut_3d)
+ drm_property_blob_get(intel_state->hw.lut_3d);
+
return &intel_state->uapi;
}
@@ -167,6 +176,16 @@ intel_plane_destroy_state(struct drm_plane *plane,
__drm_atomic_helper_plane_destroy_state(&plane_state->uapi);
if (plane_state->hw.fb)
drm_framebuffer_put(plane_state->hw.fb);
+
+ if (plane_state->hw.degamma_lut)
+ drm_property_blob_put(plane_state->hw.degamma_lut);
+ if (plane_state->hw.gamma_lut)
+ drm_property_blob_put(plane_state->hw.gamma_lut);
+ if (plane_state->hw.ctm)
+ drm_property_blob_put(plane_state->hw.ctm);
+ if (plane_state->hw.lut_3d)
+ drm_property_blob_put(plane_state->hw.lut_3d);
+
kfree(plane_state);
}
@@ -317,6 +336,14 @@ static void intel_plane_clear_hw_state(struct intel_plane_state *plane_state)
{
if (plane_state->hw.fb)
drm_framebuffer_put(plane_state->hw.fb);
+ if (plane_state->hw.degamma_lut)
+ drm_property_blob_put(plane_state->hw.degamma_lut);
+ if (plane_state->hw.gamma_lut)
+ drm_property_blob_put(plane_state->hw.gamma_lut);
+ if (plane_state->hw.ctm)
+ drm_property_blob_put(plane_state->hw.ctm);
+ if (plane_state->hw.lut_3d)
+ drm_property_blob_put(plane_state->hw.lut_3d);
memset(&plane_state->hw, 0, sizeof(plane_state->hw));
}