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| author | Sunil Khatri <sunil.khatri@amd.com> | 2025-09-17 17:42:43 +0300 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2025-09-23 17:22:31 +0300 |
| commit | c5b3cc417b0260abc74ed32f6baa626c9de917c0 (patch) | |
| tree | b2a583424d55e738f504dc8172a259db52120a46 /drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | |
| parent | ae4d627e43ccecc403e7378811289b33de38e67d (diff) | |
| download | linux-c5b3cc417b0260abc74ed32f6baa626c9de917c0.tar.xz | |
drm/amdgpu: use hmm_pfns instead of array of pages
we dont need to allocate local array of pages to hold
the pages returned by the hmm, instead we could use
the hmm_range structure itself to get to hmm_pfn
and get the required pages directly.
This avoids call to alloc/free quite a lot.
Signed-off-by: Sunil Khatri <sunil.khatri@amd.com>
Suggested-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Acked-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_ttm.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c index 71b6691edab4..aa9ee5dffa45 100644 --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c @@ -708,7 +708,7 @@ struct amdgpu_ttm_tt { * Calling function must call amdgpu_ttm_tt_userptr_range_done() once and only * once afterwards to stop HMM tracking */ -int amdgpu_ttm_tt_get_user_pages(struct amdgpu_bo *bo, struct page **pages, +int amdgpu_ttm_tt_get_user_pages(struct amdgpu_bo *bo, struct hmm_range **range) { struct ttm_tt *ttm = bo->tbo.ttm; @@ -745,7 +745,7 @@ int amdgpu_ttm_tt_get_user_pages(struct amdgpu_bo *bo, struct page **pages, readonly = amdgpu_ttm_tt_is_readonly(ttm); r = amdgpu_hmm_range_get_pages(&bo->notifier, start, ttm->num_pages, - readonly, NULL, pages, range); + readonly, NULL, range); out_unlock: mmap_read_unlock(mm); if (r) @@ -797,12 +797,12 @@ bool amdgpu_ttm_tt_get_user_pages_done(struct ttm_tt *ttm, * that backs user memory and will ultimately be mapped into the device * address space. */ -void amdgpu_ttm_tt_set_user_pages(struct ttm_tt *ttm, struct page **pages) +void amdgpu_ttm_tt_set_user_pages(struct ttm_tt *ttm, struct hmm_range *range) { unsigned long i; for (i = 0; i < ttm->num_pages; ++i) - ttm->pages[i] = pages ? pages[i] : NULL; + ttm->pages[i] = range ? hmm_pfn_to_page(range->hmm_pfns[i]) : NULL; } /* |