git/linux-net
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/netdev/net.git/ synced 2026-04-23 08:55:56 -04:00
Code Issues Packages Projects Releases Wiki Activity

drm/amdgpu: Add support for CPERs on virtualization

Browse Source 
Add support for CPERs on VFs.

VFs do not receive PMFW messages directly; as such, they need to
query them from the host. To avoid hitting host event guard,
CPER queries need to be rate limited. CPER queries share the same
RAS telemetry buffer as error count query, so a mutex protecting
the shared buffer was added as well.

For readability, the amdgpu_detect_virtualization was refactored
into multiple individual functions.

Signed-off-by: Tony Yi <Tony.Yi@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Tony Yi
2025-02-26 17:03:10 -05:00
committed by Alex Deucher
parent ca17c8e149
commit a91d91b600
5 changed files with 195 additions and 13 deletions
Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
View File

@@ -3099,7 +3099,8 @@ static int amdgpu_device_ip_init(struct amdgpu_device *adev)
amdgpu_fru_get_product_info(adev);
r = amdgpu_cper_init(adev);
if (!amdgpu_sriov_vf(adev) || amdgpu_sriov_ras_cper_en(adev))
r = amdgpu_cper_init(adev);
init_failed:
@@ -4333,10 +4334,8 @@ int amdgpu_device_init(struct amdgpu_device *adev,
* for throttling interrupt) = 60 seconds.
*/
ratelimit_state_init(&adev->throttling_logging_rs, (60 - 1) * HZ, 1);
ratelimit_state_init(&adev->virt.ras_telemetry_rs, 5 * HZ, 1);
ratelimit_set_flags(&adev->throttling_logging_rs, RATELIMIT_MSG_ON_RELEASE);
ratelimit_set_flags(&adev->virt.ras_telemetry_rs, RATELIMIT_MSG_ON_RELEASE);
/* Registers mapping */
/* TODO: block userspace mapping of io register */
@@ -4368,7 +4367,7 @@ int amdgpu_device_init(struct amdgpu_device *adev,
return -ENOMEM;
/* detect hw virtualization here */
amdgpu_detect_virtualization(adev);
amdgpu_virt_init(adev);
amdgpu_device_get_pcie_info(adev);