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drm/amdkfd: enable subsequent retry fault

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After draining the stale retry fault, or failed to validate the range
to recover, have to remove the fault address from fault filter ring, to
be able to handle subsequent retry interrupt on same address. Otherwise
the retry fault will not be processed to recover until timeout passed.

Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Philip Yang
2021-04-20 15:13:59 -04:00
committed by Alex Deucher
parent 36255b5f61
commit b3dc91f973
1 changed files with 4 additions and 1 deletions
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5
drivers/gpu/drm/amd/amdkfd/kfd_svm.c
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@@ -2363,8 +2363,10 @@ svm_range_restore_pages(struct amdgpu_device *adev, unsigned int pasid,
mutex_lock(&prange->migrate_mutex);
if (svm_range_skip_recover(prange))
if (svm_range_skip_recover(prange)) {
amdgpu_gmc_filter_faults_remove(adev, addr, pasid);
goto out_unlock_range;
}
timestamp = ktime_to_us(ktime_get()) - prange->validate_timestamp;
/* skip duplicate vm fault on different pages of same range */
@@ -2426,6 +2428,7 @@ svm_range_restore_pages(struct amdgpu_device *adev, unsigned int pasid,
if (r == -EAGAIN) {
pr_debug("recover vm fault later\n");
amdgpu_gmc_filter_faults_remove(adev, addr, pasid);
r = 0;
}
return r;