linux-next.git/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v11.c, branch master

drm/kfd: Add CU occupancy support to GFX11

2026-08-25T22:17:21+00:00

Port changes from GFX9 to GFX11 mostly as-is. Minor changes to register access code. Assisted-by: Claude:Sonnet-4-6 Signed-off-by: David Belanger Acked-by: Alex Deucher Reviewed-by: Sreekant Somasekharan Signed-off-by: Alex Deucher

drm/amdgpu/gfx11: WARN() rather than BUG() for invalid SDMA engine

2026-07-08T18:25:05+00:00

There's no need to crash the kernel for these cases. Reviewed-by: Kent Russell Signed-off-by: Alex Deucher

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51+00:00

This was done entirely with mindless brute force, using git grep -l '\

treewide: Replace kmalloc with kmalloc_obj for non-scalar types

2026-02-21T09:02:28+00:00

This is the result of running the Coccinelle script from scripts/coccinelle/api/kmalloc_objs.cocci. The script is designed to avoid scalar types (which need careful case-by-case checking), and instead replace kmalloc-family calls that allocate struct or union object instances: Single allocations: kmalloc(sizeof(TYPE), ...) are replaced with: kmalloc_obj(TYPE, ...) Array allocations: kmalloc_array(COUNT, sizeof(TYPE), ...) are replaced with: kmalloc_objs(TYPE, COUNT, ...) Flex array allocations: kmalloc(struct_size(PTR, FAM, COUNT), ...) are replaced with: kmalloc_flex(*PTR, FAM, COUNT, ...) (where TYPE may also be *VAR) The resulting allocations no longer return "void *", instead returning "TYPE *". Signed-off-by: Kees Cook

drm/amdgpu: Use kmalloc_array() instead of kmalloc()

2025-09-23T14:35:54+00:00

Documentation/process/deprecated.rst recommends against the use of kmalloc with dynamic size calculations due to the risk of overflow and smaller allocation being made than the caller was expecting. Replace kmalloc() with kmalloc_array() in amdgpu_amdkfd_gfx_v10.c, amdgpu_amdkfd_gfx_v10_3.c, amdgpu_amdkfd_gfx_v11.c and amdgpu_amdkfd_gfx_v12.c to make the intended allocation size clearer and avoid potential overflow issues. Suggested-by: Felix Kuehling Signed-off-by: Rahul Kumar Signed-off-by: Felix Kuehling Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdkfd: implement per queue sdma reset for gfx 9.4+

2025-03-05T15:47:26+00:00

To reset hung SDMA queues on GFX 9.4+ for the GFX9 family, a soft reset must be issued through SMU. Since soft resets will reset an entire SDMA engine, use a common KGD call to do the reset as the KGD will handle avoiding a reset of in flight GFX and paging queues on that engine. In addition, create a common call for all reset types to simplify the handling of module parameter settings that block gpu resets. Signed-off-by: Jonathan Kim Reviewed-by: Harish Kasiviswanathan Signed-off-by: Alex Deucher

drm/amdkfd: support per-queue reset on gfx9

2024-08-06T14:43:18+00:00

Support per-queue reset for GFX9. The recommendation is for the driver to target reset the HW queue via a SPI MMIO register write. Since this requires pipe and HW queue info and MEC FW is limited to doorbell reports of hung queues after an unmap failure, scan the HW queue slots defined by SET_RESOURCES first to identify the user queue candidates to reset. Only signal reset events to processes that have had a queue reset. If queue reset fails, fall back to GPU reset. Signed-off-by: Jonathan Kim Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdgpu: Use function for IP version check

2023-09-20T16:23:28+00:00

Use an inline function for version check. Gives more flexibility to handle any format changes. Signed-off-by: Lijo Lazar Reviewed-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amdkfd: fix and enable ttmp setup for gfx11

2023-07-27T18:59:29+00:00

The MES cached process context must be cleared on adding any queue for the first time. For proper debug support, the MES will clear it's cached process context on the first call to SET_SHADER_DEBUGGER. This allows TTMPs to be pesistently enabled in a safe manner. Signed-off-by: Jonathan Kim Reviewed-by: Eric Huang Signed-off-by: Alex Deucher

drm/amdkfd: add kfd2kgd debugger callbacks for GC v9.4.3

2023-07-12T14:58:01+00:00

Implement the similarities as GC v9.4.2, and the difference for GC v9.4.3 HW spec, i.e. xcc instance. Signed-off-by: Jonathan Kim Signed-off-by: Eric Huang Reviewed-by: Jonathan Kim Signed-off-by: Alex Deucher