From c89d2a2fe08656b1db7107a19ac9db8d45fa1f8e Mon Sep 17 00:00:00 2001 From: Peng Ju Zhou Date: Thu, 3 Jun 2021 18:32:14 +0800 Subject: 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 Signed-off-by: Peng Ju Zhou Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c') 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) -- cgit v1.2.3