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| author |   Philip Yang <Philip.Yang@amd.com> | 2021-03-30 14:02:53 -0400 |
|---|---|---|
| committer |   Alex Deucher <alexander.deucher@amd.com> | 2021-04-20 21:46:50 -0400 |
| commit | d8a3c1c80ceb656de00b45fe1595a040e5535202 (patch) | |
| tree | 0b4af8bbd01dd06c1fa202b931a6aeb6db69d0f3 /drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c | |
| parent | drm/amdgpu: add common HMM get pages function (diff) | |
| download | linux-dev-d8a3c1c80ceb656de00b45fe1595a040e5535202.tar.xz linux-dev-d8a3c1c80ceb656de00b45fe1595a040e5535202.zip | |
drm/amdkfd: support larger svm range allocation
For larger range allocation, if hmm_range_fault return -EBUSY, set retry
timeout based on 1 second for every 512MB, this is safe timeout value.
Signed-off-by: Philip Yang <Philip.Yang@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c index 997da4237a10..2741c28ff1b5 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_mn.c @@ -185,7 +185,10 @@ int amdgpu_hmm_range_get_pages(struct mmu_interval_notifier *notifier, hmm_range->hmm_pfns = pfns; hmm_range->start = start; hmm_range->end = start + npages * PAGE_SIZE; - timeout = jiffies + msecs_to_jiffies(HMM_RANGE_DEFAULT_TIMEOUT); + + /* Assuming 512MB takes maxmium 1 second to fault page address */ + timeout = max(npages >> 17, 1ULL) * HMM_RANGE_DEFAULT_TIMEOUT; + timeout = jiffies + msecs_to_jiffies(timeout); retry: hmm_range->notifier_seq = mmu_interval_read_begin(notifier); |