diff options
| author | Victor Lu <victorchengchi.lu@amd.com> | 2024-05-31 14:59:22 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-06-19 12:47:52 -0400 |
| commit | b32563859d6f61265222ec0f27d394964a8f7669 (patch) | |
| tree | 4f4888f8ba1def7af41b9eee43feb08f8397f992 /drivers/gpu/drm/amd/amdgpu | |
| parent | 4b5b855c240a48c6b5a494d5ec62af9bc8f661fd (diff) | |
drm/amdgpu: Do not wait for MP0_C2PMSG_33 IFWI init in SRIOV
SRIOV does not need to wait for IFWI init, and MP0_C2PMSG_33 is blocked
for VF access.
Signed-off-by: Victor Lu <victorchengchi.lu@amd.com>
Reviewed-by: Vignesh Chander <Vignesh.Chander@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 | 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; |