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| author | Bokun Zhang <Bokun.Zhang@amd.com> | 2021-01-06 00:15:57 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-06-19 00:14:01 +0300 |
| commit | 376002f4b028504a07868f7ee96ad41e0f69ae09 (patch) | |
| tree | ffa1ce512447b3d19c9c4437e41723c07eb0e9c2 /drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c | |
| parent | 942ab769c51d1a0447d080fcb91c1217f7c0c0c4 (diff) | |
| download | linux-376002f4b028504a07868f7ee96ad41e0f69ae09.tar.xz | |
drm/amd/amdgpu: Use IP discovery data to determine VCN enablement instead of MMSCH
In the past, we use MMSCH to determine whether a VCN is enabled or not.
This is not reliable since after a FLR, MMSCH may report junk data.
It is better to use IP discovery data.
Signed-off-by: Bokun Zhang <Bokun.Zhang@amd.com>
Signed-off-by: Peng Ju Zhou <PengJu.Zhou@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c index 647d2c31e8bd..6780df0fb265 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vcn.c @@ -288,6 +288,29 @@ int amdgpu_vcn_sw_fini(struct amdgpu_device *adev) return 0; } +bool amdgpu_vcn_is_disabled_vcn(struct amdgpu_device *adev, enum vcn_ring_type type, uint32_t vcn_instance) +{ + bool ret = false; + + int major; + int minor; + int revision; + + /* if cannot find IP data, then this VCN does not exist */ + if (amdgpu_discovery_get_vcn_version(adev, vcn_instance, &major, &minor, &revision) != 0) + return true; + + if ((type == VCN_ENCODE_RING) && (revision & VCN_BLOCK_ENCODE_DISABLE_MASK)) { + ret = true; + } else if ((type == VCN_DECODE_RING) && (revision & VCN_BLOCK_DECODE_DISABLE_MASK)) { + ret = true; + } else if ((type == VCN_UNIFIED_RING) && (revision & VCN_BLOCK_QUEUE_DISABLE_MASK)) { + ret = true; + } + + return ret; +} + int amdgpu_vcn_suspend(struct amdgpu_device *adev) { unsigned size; |