diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell.h')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell.h | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell.h index 0e593cfeb570..38cab1c6e7f3 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell.h @@ -31,10 +31,15 @@ struct amdgpu_doorbell { /* doorbell mmio */ resource_size_t base; resource_size_t size; - u32 __iomem *ptr; /* Number of doorbells reserved for amdgpu kernel driver */ u32 num_kernel_doorbells; + + /* Kernel doorbells */ + struct amdgpu_bo *kernel_doorbells; + + /* For CPU access of doorbells */ + uint32_t *cpu_addr; }; /* Reserved doorbells for amdgpu (including multimedia). @@ -350,6 +355,7 @@ void amdgpu_mm_wdoorbell64(struct amdgpu_device *adev, u32 index, u64 v); */ 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); #define RDOORBELL32(index) amdgpu_mm_rdoorbell(adev, (index)) #define WDOORBELL32(index, v) amdgpu_mm_wdoorbell(adev, (index), (v)) |