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drm/xe/svm: Helper to add tile masks to svm ranges

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Introduce a helper to add tile mask of binding present and invalidated
for the range. Add a lockdep_assert to ensure it is protected by GPU SVM
notifier lock.

-v7
rebased

Suggested-by: Matthew Brost <matthew.brost@intel.com>
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://lore.kernel.org/r/20250513040228.470682-4-himal.prasad.ghimiray@intel.com
Signed-off-by: Himal Prasad Ghimiray <himal.prasad.ghimiray@intel.com>
This commit is contained in:
Himal Prasad Ghimiray
2025-05-13 09:32:16 +05:30
parent 686a526dad
commit eb07c2fc10
1 changed files with 16 additions and 10 deletions
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drivers/gpu/drm/xe/xe_pt.c
+16 -10
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@@ -2216,6 +2216,18 @@ static void unbind_op_commit(struct xe_vm *vm, struct xe_tile *tile,
}
}
static void range_present_and_invalidated_tile(struct xe_vm *vm,
struct xe_svm_range *range,
u8 tile_id)
{
/* WRITE_ONCE pairs with READ_ONCE in xe_svm.c */
lockdep_assert_held(&vm->svm.gpusvm.notifier_lock);
WRITE_ONCE(range->tile_present, range->tile_present | BIT(tile_id));
WRITE_ONCE(range->tile_invalidated, range->tile_invalidated & ~BIT(tile_id));
}
static void op_commit(struct xe_vm *vm,
struct xe_tile *tile,
struct xe_vm_pgtable_update_ops *pt_update_ops,
@@ -2271,19 +2283,13 @@ static void op_commit(struct xe_vm *vm,
case DRM_GPUVA_OP_DRIVER:
{
/* WRITE_ONCE pairs with READ_ONCE in xe_svm.c */
if (op->subop == XE_VMA_SUBOP_MAP_RANGE) {
WRITE_ONCE(op->map_range.range->tile_present,
op->map_range.range->tile_present |
BIT(tile->id));
WRITE_ONCE(op->map_range.range->tile_invalidated,
op->map_range.range->tile_invalidated &
~BIT(tile->id));
} else if (op->subop == XE_VMA_SUBOP_UNMAP_RANGE) {
if (op->subop == XE_VMA_SUBOP_MAP_RANGE)
range_present_and_invalidated_tile(vm, op->map_range.range, tile->id);
else if (op->subop == XE_VMA_SUBOP_UNMAP_RANGE)
WRITE_ONCE(op->unmap_range.range->tile_present,
op->unmap_range.range->tile_present &
~BIT(tile->id));
}
break;
}
default: