diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell.h | 5 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell_mgr.c | 13 |
2 files changed, 12 insertions, 6 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell.h index 09f6727e7c73a..4a8b33f55f6bc 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell.h @@ -357,8 +357,9 @@ int amdgpu_doorbell_init(struct amdgpu_device *adev); void amdgpu_doorbell_fini(struct amdgpu_device *adev); int amdgpu_doorbell_create_kernel_doorbells(struct amdgpu_device *adev); uint32_t amdgpu_doorbell_index_on_bar(struct amdgpu_device *adev, - struct amdgpu_bo *db_bo, - uint32_t doorbell_index); + struct amdgpu_bo *db_bo, + uint32_t doorbell_index, + uint32_t db_size); #define RDOORBELL32(index) amdgpu_mm_rdoorbell(adev, (index)) #define WDOORBELL32(index, v) amdgpu_mm_wdoorbell(adev, (index), (v)) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell_mgr.c index 599aece42017a..3f3662e8b8710 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell_mgr.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell_mgr.c @@ -114,19 +114,24 @@ void amdgpu_mm_wdoorbell64(struct amdgpu_device *adev, u32 index, u64 v) * @adev: amdgpu_device pointer * @db_bo: doorbell object's bo * @doorbell_index: doorbell relative index in this doorbell object + * @db_size: doorbell size is in byte * * returns doorbell's absolute index in BAR */ uint32_t amdgpu_doorbell_index_on_bar(struct amdgpu_device *adev, - struct amdgpu_bo *db_bo, - uint32_t doorbell_index) + struct amdgpu_bo *db_bo, + uint32_t doorbell_index, + uint32_t db_size) { int db_bo_offset; db_bo_offset = amdgpu_bo_gpu_offset_no_check(db_bo); - /* doorbell index is 32 bit but doorbell's size is 64-bit, so *2 */ - return db_bo_offset / sizeof(u32) + doorbell_index * 2; + /* doorbell index is 32 bit but doorbell's size can be 32 bit + * or 64 bit, so *db_size(in byte)/4 for alignment. + */ + return db_bo_offset / sizeof(u32) + doorbell_index * + DIV_ROUND_UP(db_size, 4); } /** |