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drm/xe: Use drm_gpusvm_scan_mm()

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Use drm_gpusvm_scan_mm() to avoid unnecessarily calling into
drm_pagemap_populate_mm();

v3:
- New patch.

Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
Link: https://patch.msgid.link/20251219113320.183860-22-thomas.hellstrom@linux.intel.com
This commit is contained in:
Thomas Hellström 2025-12-19 12:33:17 +01:00
parent f1d08a5864
commit 0471ed20df
1 changed files with 13 additions and 1 deletions
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14
drivers/gpu/drm/xe/xe_svm.c
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@ -1590,11 +1590,23 @@ struct drm_pagemap *xe_vma_resolve_pagemap(struct xe_vma *vma, struct xe_tile *t
int xe_svm_alloc_vram(struct xe_svm_range *range, const struct drm_gpusvm_ctx *ctx,
struct drm_pagemap *dpagemap)
{
struct xe_device *xe = range_to_vm(&range->base)->xe;
struct xe_vm *vm = range_to_vm(&range->base);
enum drm_gpusvm_scan_result migration_state;
struct xe_device *xe = vm->xe;
xe_assert(range_to_vm(&range->base)->xe, range->base.pages.flags.migrate_devmem);
range_debug(range, "ALLOCATE VRAM");
migration_state = drm_gpusvm_scan_mm(&range->base,
xe_svm_private_page_owner(vm, false),
dpagemap->pagemap);
if (migration_state == DRM_GPUSVM_SCAN_EQUAL) {
if (IS_ENABLED(CONFIG_DRM_XE_DEBUG_VM))
drm_dbg(dpagemap->drm, "Already migrated!\n");
return 0;
}
if (IS_ENABLED(CONFIG_DRM_XE_DEBUG_VM))
drm_dbg(&xe->drm, "Request migration to device memory on \"%s\".\n",
dpagemap->drm->unique);