diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c | 26 |
1 files changed, 14 insertions, 12 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c index c71356cb393d..0cb8aea93a70 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_discovery.c @@ -260,19 +260,21 @@ static int amdgpu_discovery_read_binary_from_mem(struct amdgpu_device *adev, u32 msg; int i, ret = 0; - /* It can take up to a second for IFWI init to complete on some dGPUs, - * but generally it should be in the 60-100ms range. Normally this starts - * as soon as the device gets power so by the time the OS loads this has long - * completed. However, when a card is hotplugged via e.g., USB4, we need to - * wait for this to complete. Once the C2PMSG is updated, we can - * continue. - */ + if (!amdgpu_sriov_vf(adev)) { + /* It can take up to a second for IFWI init to complete on some dGPUs, + * but generally it should be in the 60-100ms range. Normally this starts + * as soon as the device gets power so by the time the OS loads this has long + * completed. However, when a card is hotplugged via e.g., USB4, we need to + * wait for this to complete. Once the C2PMSG is updated, we can + * continue. + */ - for (i = 0; i < 1000; i++) { - msg = RREG32(mmMP0_SMN_C2PMSG_33); - if (msg & 0x80000000) - break; - usleep_range(1000, 1100); + for (i = 0; i < 1000; i++) { + msg = RREG32(mmMP0_SMN_C2PMSG_33); + if (msg & 0x80000000) + break; + usleep_range(1000, 1100); + } } vram_size = (uint64_t)RREG32(mmRCC_CONFIG_MEMSIZE) << 20; |