drm/amdgpu: Add per device sdma_doorbell_range field

Different ASIC has different sdma doorbell range. Add
a per device sdma_doorbell_range field and initialize
it.

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Philip Yang <Philip.Yang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell.h
index 35a0c05..1cfec06 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell.h
@@ -72,6 +72,8 @@ struct amdgpu_doorbell_index {
                } uvd_vce;
        };
        uint32_t max_assignment;
+       /* Per engine SDMA doorbell size in dword */
+       uint32_t sdma_doorbell_range;
 };
 
 typedef enum _AMDGPU_DOORBELL_ASSIGNMENT

diff --git a/drivers/gpu/drm/amd/amdgpu/vega10_reg_init.c b/drivers/gpu/drm/amd/amdgpu/vega10_reg_init.c
index b75d17b..4b5d60e 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/vega10_reg_init.c
+++ b/drivers/gpu/drm/amd/amdgpu/vega10_reg_init.c
@@ -83,5 +83,6 @@ void vega10_doorbell_index_init(struct amdgpu_device *adev)
        adev->doorbell_index.uvd_vce.vce_ring6_7 = AMDGPU_DOORBELL64_VCE_RING6_7;
        /* In unit of dword doorbell */
        adev->doorbell_index.max_assignment = AMDGPU_DOORBELL64_MAX_ASSIGNMENT << 1;
+       adev->doorbell_index.sdma_doorbell_range = 4;
 }
 

diff --git a/drivers/gpu/drm/amd/amdgpu/vega20_reg_init.c b/drivers/gpu/drm/amd/amdgpu/vega20_reg_init.c
index 63c542c..53716c5 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/vega20_reg_init.c
+++ b/drivers/gpu/drm/amd/amdgpu/vega20_reg_init.c
@@ -86,5 +86,6 @@ void vega20_doorbell_index_init(struct amdgpu_device *adev)
        adev->doorbell_index.uvd_vce.vce_ring4_5 = AMDGPU_VEGA20_DOORBELL64_VCE_RING4_5;
        adev->doorbell_index.uvd_vce.vce_ring6_7 = AMDGPU_VEGA20_DOORBELL64_VCE_RING6_7;
        adev->doorbell_index.max_assignment = AMDGPU_VEGA20_DOORBELL_MAX_ASSIGNMENT << 1;
+       adev->doorbell_index.sdma_doorbell_range = 20;
 }