user/sven/linux.git/drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c, branch v6.15.2

drm/amdgpu: add cleaner shader trace point

2025-03-21T16:16:34Z

Note when the cleaner shader is executed. Signed-off-by: Christian König Acked-by: Srinivasan Shanmugam Signed-off-by: Alex Deucher

drm/amdgpu: rework how the cleaner shader is emitted v3

2025-03-21T16:16:34Z

Instead of emitting the cleaner shader for every job which has the enforce_isolation flag set only emit it for the first submission from every client. v2: add missing NULL check v3: fix another NULL pointer deref Signed-off-by: Christian König Acked-by: Srinivasan Shanmugam Signed-off-by: Alex Deucher

drm/amdkfd: Fix pasid value leak

2025-02-13T02:05:50Z

Curret kfd does not allocate pasid values, instead uses pasid value for each vm from graphic driver. So should not prevent graphic driver from releasing pasid values since the values are allocated by graphic driver, not kfd driver anymore. This patch does not stop graphic driver release pasid values. Fixes: 8544374c0f82 ("drm/amdkfd: Have kfd driver use same PASID values from graphic driver") Signed-off-by: Xiaogang Chen Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdgpu: Unlocked unmap only clear page table leaves

2025-02-13T02:05:49Z

SVM migration unmap pages from GPU and then update mapping to GPU to recover page fault. Currently unmap clears the PDE entry for range length >= huge page and free PTB bo, update mapping to alloc new PT bo. There is race bug that the freed entry bo maybe still on the pt_free list, reused when updating mapping and then freed, leave invalid PDE entry and cause GPU page fault. By setting the update to clear only one PDE entry or clear PTB, to avoid unmap to free PTE bo. This fixes the race bug and improve the unmap and map to GPU performance. Update mapping to huge page will still free the PTB bo. With this change, the vm->pt_freed list and work is not needed. Add WARN_ON(unlocked) in amdgpu_vm_pt_free_dfs to catch if unmap to free the PTB. Signed-off-by: Philip Yang Reviewed-by: Christian König Signed-off-by: Alex Deucher

Merge tag 'drm-misc-next-2025-01-06' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

2025-01-09T05:48:50Z

drm-misc-next for 6.14: UAPI Changes: - Clarify drm memory stats documentation Cross-subsystem Changes: Core Changes: - sched: Documentation fixes, Driver Changes: - amdgpu: Track BO memory stats at runtime - amdxdna: Various fixes - hisilicon: New HIBMC driver - bridges: - Provide default implementation of atomic_check for HDMI bridges - it605: HDCP improvements, MCCS Support Signed-off-by: Dave Airlie From: Maxime Ripard Link: https://patchwork.freedesktop.org/patch/msgid/20250106-augmented-kakapo-of-action-0cf000@houat

drm/amdgpu: track bo memory stats at runtime

2024-12-19T15:56:28Z

Before, every time fdinfo is queried we try to lock all the BOs in the VM and calculate memory usage from scratch. This works okay if the fdinfo is rarely read and the VMs don't have a ton of BOs. If either of these conditions is not true, we get a massive performance hit. In this new revision, we track the BOs as they change states. This way when the fdinfo is queried we only need to take the status lock and copy out the usage stats with minimal impact to the runtime performance. With this new approach however, we would no longer be able to track active buffers. Signed-off-by: Yunxiang Li Reviewed-by: Christian König Link: https://patchwork.freedesktop.org/patch/msgid/20241219151411.1150-6-Yunxiang.Li@amd.com Signed-off-by: Christian König

drm/amdgpu: remove unused function parameter

2024-12-19T15:56:25Z

amdgpu_vm_bo_invalidate doesn't use the adev parameter and not all callers have a reference to adev handy, so remove it for cleanliness. Signed-off-by: Yunxiang Li Reviewed-by: Christian König Link: https://patchwork.freedesktop.org/patch/msgid/20241219151411.1150-5-Yunxiang.Li@amd.com Signed-off-by: Christian König

drm/amdgpu: Handle NULL bo->tbo.resource (again) in amdgpu_vm_bo_update

2024-12-18T17:39:08Z

Third time's the charm, I hope? Fixes: d3116756a710 ("drm/ttm: rename bo->mem and make it a pointer") Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3837 Reviewed-by: Christian König Signed-off-by: Michel Dänzer Signed-off-by: Alex Deucher

drm/amdgpu: fix when the cleaner shader is emitted

2024-12-10T15:26:18Z

Emitting the cleaner shader must come after the check if a VM switch is necessary or not. Otherwise we will emit the cleaner shader every time and not just when it is necessary because we switched between applications. This can otherwise crash on gang submit and probably decreases performance quite a bit. v2: squash in fix from Srini (Alex) Signed-off-by: Christian König Fixes: ee7a846ea27b ("drm/amdgpu: Emit cleaner shader at end of IB submission") Acked-by: Alex Deucher Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org

drm/amdgpu: stop syncing PRT map operations

2024-11-05T15:35:39Z

Requested by both Bas and Friedrich. Mapping PTEs as PRT doesn't need to sync for anything. Signed-off-by: Christian König Reviewed-by: Friedrich Vock Signed-off-by: Alex Deucher