diff options
| author | Dave Airlie <airlied@redhat.com> | 2022-12-09 12:08:12 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2022-12-09 12:08:13 +1000 |
| commit | 9e5737bd0457955690d871b3f4fc66dea40ea141 (patch) | |
| tree | 959c2e9be38afc13ec86af6ca702f7771683af72 /drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c | |
| parent | f06a4da3adf252a6ecd37c4ea1c3540db0b27738 (diff) | |
| parent | 4670ac706ff9b3d0adb766ef9e93cc36d9dda474 (diff) | |
Merge tag 'amd-drm-next-6.2-2022-12-02' of https://gitlab.freedesktop.org/agd5f/linux into drm-next
amd-drm-next-6.2-2022-12-02:
amdgpu:
- Fix CPU stalls when allocating large amounts of system memory
- SR-IOV fixes
- BACO fixes
- Enable GC 11.0.4
- Enable PSP 13.0.11
- Enable SMU 13.0.11
- Enable NBIO 7.7.1
- Fix reported VCN capabilities for RDNA2
- Misc cleanups
- PCI ref count fixes
- DCN DPIA fixes
- DCN 3.2.x fixes
- Documentation updates
- GC 11.x fixes
- VCN RAS fixes
- APU fix for passthrough
- PSR fixes
- GFX preemption support for gfx9
- SDMA fix for S0ix
amdkfd:
- Enable KFD support for GC 11.0.4
- Misc cleanups
- Fix memory leak
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221202160659.5987-1-alexander.deucher@amd.com
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c | 50 |
1 files changed, 35 insertions, 15 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c index a48ea62b12b0..65715cb395d8 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_hmm.c @@ -51,6 +51,8 @@ #include "amdgpu_amdkfd.h" #include "amdgpu_hmm.h" +#define MAX_WALK_BYTE (2UL << 30) + /** * amdgpu_hmm_invalidate_gfx - callback to notify about mm change * @@ -163,6 +165,7 @@ int amdgpu_hmm_range_get_pages(struct mmu_interval_notifier *notifier, struct hmm_range **phmm_range) { struct hmm_range *hmm_range; + unsigned long end; unsigned long timeout; unsigned long i; unsigned long *pfns; @@ -184,25 +187,42 @@ int amdgpu_hmm_range_get_pages(struct mmu_interval_notifier *notifier, hmm_range->default_flags |= HMM_PFN_REQ_WRITE; hmm_range->hmm_pfns = pfns; hmm_range->start = start; - hmm_range->end = start + npages * PAGE_SIZE; + end = start + npages * PAGE_SIZE; hmm_range->dev_private_owner = owner; - /* 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); + do { + hmm_range->end = min(hmm_range->start + MAX_WALK_BYTE, end); + + pr_debug("hmm range: start = 0x%lx, end = 0x%lx", + hmm_range->start, hmm_range->end); + + /* Assuming 512MB takes maxmium 1 second to fault page address */ + timeout = max((hmm_range->end - hmm_range->start) >> 29, 1UL); + timeout *= HMM_RANGE_DEFAULT_TIMEOUT; + timeout = jiffies + msecs_to_jiffies(timeout); retry: - hmm_range->notifier_seq = mmu_interval_read_begin(notifier); - r = hmm_range_fault(hmm_range); - if (unlikely(r)) { - /* - * FIXME: This timeout should encompass the retry from - * mmu_interval_read_retry() as well. - */ - if (r == -EBUSY && !time_after(jiffies, timeout)) - goto retry; - goto out_free_pfns; - } + hmm_range->notifier_seq = mmu_interval_read_begin(notifier); + r = hmm_range_fault(hmm_range); + if (unlikely(r)) { + /* + * FIXME: This timeout should encompass the retry from + * mmu_interval_read_retry() as well. + */ + if (r == -EBUSY && !time_after(jiffies, timeout)) + goto retry; + goto out_free_pfns; + } + + if (hmm_range->end == end) + break; + hmm_range->hmm_pfns += MAX_WALK_BYTE >> PAGE_SHIFT; + hmm_range->start = hmm_range->end; + schedule(); + } while (hmm_range->end < end); + + hmm_range->start = start; + hmm_range->hmm_pfns = pfns; /* * Due to default_flags, all pages are HMM_PFN_VALID or |