diff options
| author | Philip Yang <Philip.Yang@amd.com> | 2024-04-30 13:51:51 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2024-05-13 15:44:02 -0400 |
| commit | 9095e5544061b16d1b331aca3f32c76cbd656d72 (patch) | |
| tree | 1fc184dd13bc267638a4954ef3292ba7c144d77d /drivers/gpu/drm/amd/amdkfd | |
| parent | 10f624ef239bd136cdcc5bbc626157a57b938a31 (diff) | |
drm/amdkfd: Remove arbitrary timeout for hmm_range_fault
On system with khugepaged enabled and user cases with THP buffer, the
hmm_range_fault may takes > 15 seconds to return -EBUSY, the arbitrary
timeout value is not accurate, cause memory allocation failure.
Remove the arbitrary timeout value, return EAGAIN to application if
hmm_range_fault return EBUSY, then userspace libdrm and Thunk will call
ioctl again.
Change EAGAIN to debug message as this is not error.
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>
Diffstat (limited to 'drivers/gpu/drm/amd/amdkfd')
| -rw-r--r-- | drivers/gpu/drm/amd/amdkfd/kfd_svm.c | 5 |
1 files changed, 1 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c index 4885d1b2cc29..4e5851bdf832 100644 --- a/drivers/gpu/drm/amd/amdkfd/kfd_svm.c +++ b/drivers/gpu/drm/amd/amdkfd/kfd_svm.c @@ -1690,11 +1690,8 @@ static int svm_range_validate_and_map(struct mm_struct *mm, readonly, owner, NULL, &hmm_range); WRITE_ONCE(p->svms.faulting_task, NULL); - if (r) { + if (r) pr_debug("failed %d to get svm range pages\n", r); - if (r == -EBUSY) - r = -EAGAIN; - } } else { r = -EFAULT; } |