kernel/linux.git/drivers/gpu/drm/amd/amdgpu/amdgpu_ring.h, branch v6.6.142

drm/amdgpu: Add bounds checking to ib_{get,set}_value

2026-05-17T15:13:46+00:00

commit 66085e206431ef88ce36f53c1f53d570790ccc9e upstream. The uvd/vce/vcn code accesses the IB at predefined offsets without checking that the IB is large enough. Check the bounds here. The caller is responsible for making sure it can handle arbitrary return values. Also make the idx a uint32_t to prevent overflows causing the condition to fail. Signed-off-by: Benjamin Cheng Reviewed-by: Christian König Reviewed-by: Ruijing Dong Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman

drm/amdgpu: switch job hw_fence to amdgpu_fence

2025-07-06T09:00:15+00:00

commit ebe43542702c3d15d1a1d95e8e13b1b54076f05a upstream. Use the amdgpu fence container so we can store additional data in the fence. This also fixes the start_time handling for MCBP since we were casting the fence to an amdgpu_fence and it wasn't. Fixes: 3f4c175d62d8 ("drm/amdgpu: MCBP based on DRM scheduler (v9)") Reviewed-by: Christian König Signed-off-by: Alex Deucher (cherry picked from commit bf1cd14f9e2e1fdf981eed273ddd595863f5288c) Cc: stable@vger.kernel.org Signed-off-by: Greg Kroah-Hartman

drm/amdgpu: Clean up errors in amdgpu_ring.h

2023-08-09T13:43:45+00:00

Fix the following errors reported by checkpatch: ERROR: spaces required around that ':' (ctx:VxW) Signed-off-by: Ran Sun Signed-off-by: Alex Deucher

drm/amdgpu: add amdgpu_error_* debugfs file

2023-06-15T15:37:54+00:00

This allows us to insert some error codes into the bottom of the pipeline on an engine. Signed-off-by: Christian König Reviewed-by: Luben Tuikov Signed-off-by: Alex Deucher

drm/amdgpu: Modify indirect buffer packages for resubmission

2023-06-09T16:44:15+00:00

When the preempted IB frame resubmitted to cp, we need to modify the frame data including: 1. set PRE_RESUME 1 in CONTEXT_CONTROL. 2. use meta data(DE and CE) read from CSA in WRITE_DATA. Add functions to save the location the first time IBs emitted and callback to patch the package when resubmission happens. Signed-off-by: Jiadong Zhu Acked-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amdgpu: add partition ID track in ring

2023-06-09T13:59:30+00:00

Keep track partition ID in ring. Signed-off-by: James Zhu Acked-by: Lijo Lazar Signed-off-by: Alex Deucher

drm/amdgpu: increase AMDGPU_MAX_RINGS

2023-06-09T13:54:05+00:00

On newer GPUs, the number of kernel rings are increased. Signed-off-by: Le Ma Reviewed-by: Hawking Zhang Signed-off-by: Alex Deucher

drm/amdgpu: increase AMDGPU_MAX_HWIP_RINGS

2023-06-09T13:51:51+00:00

[WA] Increase AMDGPU_MAX_HWIP_RINGS to 64 to support more compute ring resource. Later need redesign with queue/prirority/scheduler factors to reduce AMDGPU_MAX_HWIP_RINGS. Signed-off-by: James Zhu Acked-by: Christian König Signed-off-by: Alex Deucher

drm/amdgpu: increase MAX setting to hold more jpeg instances

2023-06-09T13:51:19+00:00

vcn_v4_0_3 increased jpeg instances, need increasing MAX resources setting accordlingly. Signed-off-by: James Zhu Acked-by Leo Liu Signed-off-by: Alex Deucher

drm/amdgpu: adjust some basic elements for multiple AID case

2023-06-09T13:43:35+00:00

add some elements below: - num_aid - aid_id for each sdma instance - num_inst_per_aid for sdma and extend macro size below: - SDMA_MAX_INSTANCES to 16 - AMDGPU_MAX_RINGS to 96 - AMDGPU_MAX_HWIP_RINGS to 32 v2: move aid_id from amdgpu_ring to amdgpu_sdma_instance. (Lijo) Signed-off-by: Le Ma Acked-by: Felix Kuehling Reviewed-by: Lijo Lazar Signed-off-by: Alex Deucher