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drm/amdgpu: Add per device sdma_doorbell_range field

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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>
This commit is contained in:
Oak Zeng 2018-12-17 19:42:58 -06:00 committed by Alex Deucher
parent 1f46df61a1
commit fd4855409f
3 changed files with 4 additions and 0 deletions
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2
drivers/gpu/drm/amd/amdgpu/amdgpu_doorbell.h
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@ -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

1
drivers/gpu/drm/amd/amdgpu/vega10_reg_init.c
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@ -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;
}

1
drivers/gpu/drm/amd/amdgpu/vega20_reg_init.c
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@ -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;
}