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| author | Peng Ju Zhou <PengJu.Zhou@amd.com> | 2021-06-03 18:32:14 +0800 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-06-11 16:02:50 -0400 |
| commit | c89d2a2fe08656b1db7107a19ac9db8d45fa1f8e (patch) | |
| tree | cbb30d0810bf367ae7ced2ce4c03e90c2088e1c1 /drivers/gpu/drm/amd/amdgpu | |
| parent | 2f0cf910379863c1e26a5cf52fd6d017b13ce6e8 (diff) | |
| download | linux-c89d2a2fe08656b1db7107a19ac9db8d45fa1f8e.tar.bz2 | |
drm/amd/amdgpu: add instance_number check in amdgpu_discovery_get_ip_version
The original code returns IP version of instantce_0 for every IP. This implementation may be correct for most of IPs.
However, for certain IP block (VCN for example), it may have 2 instances and
both of them have the same hw_id, BUT they have different revision number (0 and 1).
In this case, the original amdgpu_discovery_get_ip_version cannot correct reflects
the result and returns false information
Signed-off-by: Bokun Zhang <Bokun.Zhang@amd.com>
Signed-off-by: Peng Ju Zhou <PengJu.Zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c | 4 | ||||
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.h | 2 |
2 files changed, 3 insertions, 3 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c index e1b6f5891759..4fa4f78137c9 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c @@ -325,7 +325,7 @@ int amdgpu_discovery_reg_base_init(struct amdgpu_device *adev) return 0; } -int amdgpu_discovery_get_ip_version(struct amdgpu_device *adev, int hw_id, +int amdgpu_discovery_get_ip_version(struct amdgpu_device *adev, int hw_id, int number_instance, int *major, int *minor, int *revision) { struct binary_header *bhdr; @@ -357,7 +357,7 @@ int amdgpu_discovery_get_ip_version(struct amdgpu_device *adev, int hw_id, for (j = 0; j < num_ips; j++) { ip = (struct ip *)(adev->mman.discovery_bin + ip_offset); - if (le16_to_cpu(ip->hw_id) == hw_id) { + if ((le16_to_cpu(ip->hw_id) == hw_id) && (ip->number_instance == number_instance)) { if (major) *major = ip->major; if (minor) diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.h index 1b1ae21b1037..02e340cd3a38 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.h +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.h @@ -30,7 +30,7 @@ void amdgpu_discovery_fini(struct amdgpu_device *adev); int amdgpu_discovery_reg_base_init(struct amdgpu_device *adev); void amdgpu_discovery_harvest_ip(struct amdgpu_device *adev); -int amdgpu_discovery_get_ip_version(struct amdgpu_device *adev, int hw_id, +int amdgpu_discovery_get_ip_version(struct amdgpu_device *adev, int hw_id, int number_instance, int *major, int *minor, int *revision); int amdgpu_discovery_get_gfx_info(struct amdgpu_device *adev); |