drm/amdgpu: Add mask for SDMA instances

Add a mask of SDMA instances available for use. On certain ASIC configs,
not all SDMA instances are available for software use.

v2:
	Change sdma mask type to uint32_t (Le)

Signed-off-by: Lijo Lazar <lijo.lazar@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Reviewed-by: Le Ma <Le.Ma@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/aqua_vanjaram_reg_init.c b/drivers/gpu/drm/amd/amdgpu/aqua_vanjaram_reg_init.c
index dbff822..5a1511a 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/aqua_vanjaram_reg_init.c
+++ b/drivers/gpu/drm/amd/amdgpu/aqua_vanjaram_reg_init.c
@@ -37,7 +37,7 @@ void aqua_vanjaram_doorbell_index_init(struct amdgpu_device *adev)
        adev->doorbell_index.userqueue_end = AMDGPU_DOORBELL_LAYOUT1_USERQUEUE_END;
 
        adev->doorbell_index.sdma_doorbell_range = 20;
-       for (i = 0; i < adev->num_aid * adev->sdma.num_inst_per_aid; i++)
+       for (i = 0; i < adev->sdma.num_instances; i++)
                adev->doorbell_index.sdma_engine[i] =
                        AMDGPU_DOORBELL_LAYOUT1_sDMA_ENGINE_START +
                        i * (adev->doorbell_index.sdma_doorbell_range >> 1);