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Code Issues Releases Wiki Activity

drm/amdgpu: fix and cleanup VM ready check

Browse source 
Stop checking the mapped BO itself, cause that one is
certainly not a page table.

Additional to that move the code into amdgpu_vm.c

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Christian König 2017-08-24 12:32:55 +02:00 committed by Alex Deucher
parent 87f64a76b3
commit 34d7be5dc2
3 changed files with 35 additions and 31 deletions
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33
drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c
View file

@ -127,35 +127,6 @@ int amdgpu_gem_object_open(struct drm_gem_object *obj,
return 0;
}
static int amdgpu_gem_vm_check(void *param, struct amdgpu_bo *bo)
{
/* if anything is swapped out don't swap it in here,
just abort and wait for the next CS */
if (!amdgpu_bo_gpu_accessible(bo))
return -ERESTARTSYS;
if (bo->shadow && !amdgpu_bo_gpu_accessible(bo->shadow))
return -ERESTARTSYS;
return 0;
}
static bool amdgpu_gem_vm_ready(struct amdgpu_device *adev,
struct amdgpu_vm *vm,
struct list_head *list)
{
struct ttm_validate_buffer *entry;
list_for_each_entry(entry, list, head) {
struct amdgpu_bo *bo =
container_of(entry->bo, struct amdgpu_bo, tbo);
if (amdgpu_gem_vm_check(NULL, bo))
return false;
}
return !amdgpu_vm_validate_pt_bos(adev, vm, amdgpu_gem_vm_check, NULL);
}
void amdgpu_gem_object_close(struct drm_gem_object *obj,
struct drm_file *file_priv)
{
@ -189,7 +160,7 @@ void amdgpu_gem_object_close(struct drm_gem_object *obj,
if (bo_va && --bo_va->ref_count == 0) {
amdgpu_vm_bo_rmv(adev, bo_va);
if (amdgpu_gem_vm_ready(adev, vm, &list)) {
if (amdgpu_vm_ready(adev, vm)) {
struct dma_fence *fence = NULL;
r = amdgpu_vm_clear_freed(adev, vm, &fence);
@ -513,7 +484,7 @@ static void amdgpu_gem_va_update_vm(struct amdgpu_device *adev,
{
int r = -ERESTARTSYS;
if (!amdgpu_gem_vm_ready(adev, vm, list))
if (!amdgpu_vm_ready(adev, vm))
goto error;
r = amdgpu_vm_update_directories(adev, vm);

32
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c
View file

@ -231,6 +231,38 @@ int amdgpu_vm_validate_pt_bos(struct amdgpu_device *adev, struct amdgpu_vm *vm,
adev->mman.bdev.glob);
}
/**
* amdgpu_vm_check - helper for amdgpu_vm_ready
*/
static int amdgpu_vm_check(void *param, struct amdgpu_bo *bo)
{
/* if anything is swapped out don't swap it in here,
just abort and wait for the next CS */
if (!amdgpu_bo_gpu_accessible(bo))
return -ERESTARTSYS;
if (bo->shadow && !amdgpu_bo_gpu_accessible(bo->shadow))
return -ERESTARTSYS;
return 0;
}
/**
* amdgpu_vm_ready - check VM is ready for updates
*
* @adev: amdgpu device
* @vm: VM to check
*
* Check if all VM PDs/PTs are ready for updates
*/
bool amdgpu_vm_ready(struct amdgpu_device *adev, struct amdgpu_vm *vm)
{
if (amdgpu_vm_check(NULL, vm->root.bo))
return false;
return !amdgpu_vm_validate_pt_bos(adev, vm, amdgpu_vm_check, NULL);
}
/**
* amdgpu_vm_alloc_levels - allocate the PD/PT levels
*

1
drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h
View file

@ -225,6 +225,7 @@ void amdgpu_vm_fini(struct amdgpu_device *adev, struct amdgpu_vm *vm);
void amdgpu_vm_get_pd_bo(struct amdgpu_vm *vm,
struct list_head *validated,
struct amdgpu_bo_list_entry *entry);
bool amdgpu_vm_ready(struct amdgpu_device *adev, struct amdgpu_vm *vm);
int amdgpu_vm_validate_pt_bos(struct amdgpu_device *adev, struct amdgpu_vm *vm,
int (*callback)(void *p, struct amdgpu_bo *bo),
void *param);