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| author | Le Ma <le.ma@amd.com> | 2022-03-01 19:42:29 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2023-06-09 09:43:41 -0400 |
| commit | 2a47a2d90e5cd96c24503061c8920a1e6ee248a0 (patch) | |
| tree | 9e0a241e27989e4de1cdbc7e44793312257707d0 /drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c | |
| parent | f786b1d4ec778a5fc23911f06a0e38c9f4953b0c (diff) | |
| download | linux-stable-2a47a2d90e5cd96c24503061c8920a1e6ee248a0.tar.gz linux-stable-2a47a2d90e5cd96c24503061c8920a1e6ee248a0.tar.bz2 linux-stable-2a47a2d90e5cd96c24503061c8920a1e6ee248a0.zip | |
drm/amdgpu: assign the doorbell index for sdma on non-AID0
Allocate new sdma doorbell index for the instances only on AID1 for now.
Todo: there's limitation that SDMA doorbell index on SDMA 4.4.2 needs to be
less than 0x1FF, so the tail part in _AMDGPU_VEGA20_DOORBELL_ASSIGNMENT is not
enough to store sdma doorbell range on maximum 4 AIDs if doorbell_range is 20.
So it looks better to create a new doorbell index assignment table for 4.4.2.
v2: change "(x << 1) + 2" to "(x + 1) << 1" for readability.
Signed-off-by: Le Ma <le.ma@amd.com>
Acked-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c b/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c index 7deadea03caa..6935a24d1e89 100644 --- a/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c +++ b/drivers/gpu/drm/amd/amdgpu/sdma_v4_4_2.c @@ -1310,7 +1310,14 @@ static int sdma_v4_4_2_sw_init(void *handle) ring->use_doorbell?"true":"false"); /* doorbell size is 2 dwords, get DWORD offset */ - ring->doorbell_index = adev->doorbell_index.sdma_engine[i] << 1; + if (aid_id > 0) + ring->doorbell_index = + (adev->doorbell_index.aid1_sdma_start << 1) + + adev->doorbell_index.sdma_doorbell_range + * (i - adev->sdma.num_inst_per_aid); + else + ring->doorbell_index = + adev->doorbell_index.sdma_engine[i] << 1; ring->vm_hub = AMDGPU_MMHUB0(aid_id); sprintf(ring->name, "sdma%d.%d", aid_id, @@ -1329,7 +1336,14 @@ static int sdma_v4_4_2_sw_init(void *handle) /* doorbell index of page queue is assigned right after * gfx queue on the same instance */ - ring->doorbell_index = (adev->doorbell_index.sdma_engine[i] + 1) << 1; + if (aid_id > 0) + ring->doorbell_index = + ((adev->doorbell_index.aid1_sdma_start + 1) << 1) + + adev->doorbell_index.sdma_doorbell_range + * (i - adev->sdma.num_inst_per_aid); + else + ring->doorbell_index = + (adev->doorbell_index.sdma_engine[i] + 1) << 1; ring->vm_hub = AMDGPU_MMHUB0(aid_id); sprintf(ring->name, "page%d.%d", aid_id, |