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drm/amdgpu: fix lru size grouping v2 

Adding a BO can make it the insertion point for larger sizes as well.

v2: add a comment about the guard structure.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Felix Kuehling <felix.kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
steinar/wifi_calib_4_9_kernel
Christian König 2016-08-17 13:44:20 +02:00 committed by Alex Deucher
parent bdf001374b
commit 5661538749
2 changed files with 10 additions and 0 deletions
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2
drivers/gpu/drm/amd/amdgpu/amdgpu.h
View File

@ -426,6 +426,8 @@ struct amdgpu_mman {
/* custom LRU management */
struct amdgpu_mman_lru log2_size[AMDGPU_TTM_LRU_SIZE];
/* guard for log2_size array, don't add anything in between */
struct amdgpu_mman_lru guard;
};
int amdgpu_copy_buffer(struct amdgpu_ring *ring,

8
drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
View File

@ -950,6 +950,8 @@ static struct list_head *amdgpu_ttm_lru_tail(struct ttm_buffer_object *tbo)
struct list_head *res = lru->lru[tbo->mem.mem_type];
lru->lru[tbo->mem.mem_type] = &tbo->lru;
while ((++lru)->lru[tbo->mem.mem_type] == res)
lru->lru[tbo->mem.mem_type] = &tbo->lru;
return res;
}
@ -960,6 +962,8 @@ static struct list_head *amdgpu_ttm_swap_lru_tail(struct ttm_buffer_object *tbo)
struct list_head *res = lru->swap_lru;
lru->swap_lru = &tbo->swap;
while ((++lru)->swap_lru == res)
lru->swap_lru = &tbo->swap;
return res;
}
@ -1011,6 +1015,10 @@ int amdgpu_ttm_init(struct amdgpu_device *adev)
lru->swap_lru = &adev->mman.bdev.glob->swap_lru;
}
for (j = 0; j < TTM_NUM_MEM_TYPES; ++j)
adev->mman.guard.lru[j] = NULL;
adev->mman.guard.swap_lru = NULL;
adev->mman.initialized = true;
r = ttm_bo_init_mm(&adev->mman.bdev, TTM_PL_VRAM,
adev->mc.real_vram_size >> PAGE_SHIFT);