github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-06-02 03:24:19 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

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

Browse Source 
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 <lingshan.zhu@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Zhu Lingshan 2025-08-05 11:31:32 +08:00 committed by Alex Deucher
parent 5701b7a93d
commit 18a695030b
3 changed files with 10 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h
View File

@ -411,7 +411,7 @@ int kgd2kfd_init_zone_device(struct amdgpu_device *adev)
int kgd2kfd_quiesce_mm(struct mm_struct *mm, uint32_t trigger);
int kgd2kfd_resume_mm(struct mm_struct *mm);
int kgd2kfd_schedule_evict_and_restore_process(struct mm_struct *mm,
struct dma_fence *fence);
u16 context_id, struct dma_fence *fence);
#if IS_ENABLED(CONFIG_HSA_AMD)
int kgd2kfd_init(void);
void kgd2kfd_exit(void);

6
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_fence.c
View File

@ -128,8 +128,12 @@ static bool amdkfd_fence_enable_signaling(struct dma_fence *f)
if (dma_fence_is_signaled(f))
return true;
/* if fence->svm_bo is NULL, means this fence is created through
* init_kfd_vm() or amdgpu_amdkfd_gpuvm_restore_process_bos().
* Therefore, this fence is amdgpu_amdkfd_fence->eviction_fence.
*/
if (!fence->svm_bo) {
if (!kgd2kfd_schedule_evict_and_restore_process(fence->mm, f))
if (!kgd2kfd_schedule_evict_and_restore_process(fence->mm, fence->context_id, f))
return true;
} else {
if (!svm_range_schedule_evict_svm_bo(fence))

7
drivers/gpu/drm/amd/amdkfd/kfd_device.c
View File

@ -1205,12 +1205,13 @@ int kgd2kfd_resume_mm(struct mm_struct *mm)
* prepare for safe eviction of KFD BOs that belong to the specified
* process.
*
* @mm: mm_struct that identifies the specified KFD process
* @mm: mm_struct that identifies a group of KFD processes
* @context_id: an id that identifies a specific KFD context in the above kfd process group
* @fence: eviction fence attached to KFD process BOs
*
*/
int kgd2kfd_schedule_evict_and_restore_process(struct mm_struct *mm,
struct dma_fence *fence)
u16 context_id, struct dma_fence *fence)
{
struct kfd_process *p;
unsigned long active_time;
@ -1222,7 +1223,7 @@ int kgd2kfd_schedule_evict_and_restore_process(struct mm_struct *mm,
if (dma_fence_is_signaled(fence))
return 0;
p = kfd_lookup_process_by_mm(mm);
p = kfd_lookup_process_by_id(mm, context_id);
if (!p)
return -ENODEV;