FROMLIST: drm/msm: restore GEM-related IOCTLs for KMS devices#327
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yashgupta2126 wants to merge 1 commit intoqualcomm-linux:qcom-6.18.yfrom
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FROMLIST: drm/msm: restore GEM-related IOCTLs for KMS devices#327yashgupta2126 wants to merge 1 commit intoqualcomm-linux:qcom-6.18.yfrom
yashgupta2126 wants to merge 1 commit intoqualcomm-linux:qcom-6.18.yfrom
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The MSM GBM backend uses MSM_GEM_NEW to allocate GEM buffers from the KMS driver, imports them into the GPU driver (msm or kgsl) and then uses them for rendering / blending. Commit 98f11fd ("drm/msm: Take the ioctls away from the KMS-only driver") dropped all IOCTLs from the MSM KMS devices, pointing out the need to use dumb buffers, however dumb buffers should not be used by the GPU for rendering. Restore GEM-related IOCTLs for the KMS devices. Fixes: 98f11fd ("drm/msm: Take the ioctls away from the KMS-only driver") Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com> Link: https://lore.kernel.org/all/20260304-msm-restore-ioctls-v1-1-b28f9231fcd2@oss.qualcomm.com/ Signed-off-by: Yash Gupta <quic_ygupt@quicinc.com>
quicmahap
approved these changes
Mar 4, 2026
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The MSM GBM backend uses MSM_GEM_NEW to allocate GEM buffers from the KMS driver, imports them into the GPU driver (msm or kgsl) and then uses them for rendering / blending. Commit 98f11fd ("drm/msm: Take the ioctls away from the KMS-only driver") dropped all IOCTLs from the MSM KMS devices, pointing out the need to use dumb buffers, however dumb buffers should not be used by the GPU for rendering. Restore GEM-related IOCTLs for the KMS devices.
Fixes: 98f11fd ("drm/msm: Take the ioctls away from the KMS-only driver")
Link: https://lore.kernel.org/all/20260304-msm-restore-ioctls-v1-1-b28f9231fcd2@oss.qualcomm.com/
CRs-Fixed: 4458989