kernel/linux.git/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_fence.c, branch linux-7.0.y

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/amdkfd: Check for NULL return values

2026-02-19T17:16:11+00:00

This patch fixes issues when the code moves forward with a potential NULL pointer, without checking. Removed one redundant NULL check for a function parameter. This check is already done in the only caller. Signed-off-by: Andrew Martin Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

amdkfd: fence handler evict and restore a kfd process by its context id

2025-12-08T19:13:25+00:00

In fence enable signaling handler, kfd evicts and restores the corresponding kfd_process, this commit helps find the kfd_process by both its mm and context id. Signed-off-by: Zhu Lingshan Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

amdkfd: record kfd context id in amdkfd_fence

2025-12-08T19:13:23+00:00

This commit records the context id of the cooresponding kfd process in amdkfd_fence Signed-off-by: Zhu Lingshan Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdgpu: Drop 'fence' check in 'to_amdgpu_amdkfd_fence()'

2024-01-05T21:10:43+00:00

Return value of container_of(...) can't be null, so null check is not required for 'fence'. Hence drop its NULL check. Fixes the below: drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_fence.c:93 to_amdgpu_amdkfd_fence() warn: can 'fence' even be NULL? Cc: Felix Kuehling Cc: Christian König Cc: Alex Deucher Signed-off-by: Srinivasan Shanmugam Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdgpu: Allow TTM to evict svm bo from same process

2022-07-28T20:05:14+00:00

To support SVM range VRAM overcommitment, TTM should be able to evict svm bo of same process to system memory, to get space to alloc new svm bo. Signed-off-by: Philip Yang Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amd/amdgpu: Fix errors in documentation of function parameters

2021-05-10T22:06:42+00:00

In the function documentation, I removed the excess parameters, described the undocumented ones, and fixed the syntax errors. Signed-off-by: Fabio M. De Francesco Signed-off-by: Alex Deucher

drm/amdgpu: add svm_bo eviction to enable_signal cb

2021-04-21T01:49:56+00:00

Add to amdgpu_amdkfd_fence.enable_signal callback, support for svm_bo fence eviction. Signed-off-by: Alex Sierra Reviewed-by: Felix Kuehling Signed-off-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/amdkfd: add svm_bo reference for eviction fence

2021-04-21T01:49:22+00:00

[why] As part of the SVM functionality, the eviction mechanism used for SVM_BOs is different. This mechanism uses one eviction fence per prange, instead of one fence per kfd_process. [how] A svm_bo reference to amdgpu_amdkfd_fence to allow differentiate between SVM_BO or regular BO evictions. This also include modifications to set the reference at the fence creation call. Signed-off-by: Alex Sierra Reviewed-by: Felix Kuehling Signed-off-by: Felix Kuehling Signed-off-by: Alex Deucher