drm/xe: Remove vma arg from xe_pte_encode()

All the callers pass a NULL vma, so the buffer is always the BO. Remove
the argument and the side effects of dealing with it.
Reviewed-by: Matthew Brost <matthew.brost@intel.com>
Link: https://lore.kernel.org/r/20230726160708.3967790-5-lucas.demarchi@intel.comSigned-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

drivers/gpu/drm/xe/tests/xe_migrate.c

@@ -301,7 +301,7 @@ static void xe_migrate_sanity_test(struct xe_migrate *m, struct kunit *test)
 	/* First part of the test, are we updating our pagetable bo with a new entry? */
 	xe_map_wr(xe, &bo->vmap, XE_PAGE_SIZE * (NUM_KERNEL_PDE - 1), u64,
 		  0xdeaddeadbeefbeef);
-	expected = xe_pte_encode(NULL, pt, 0, XE_CACHE_WB, 0);
+	expected = xe_pte_encode(pt, 0, XE_CACHE_WB, 0);
 	if (m->eng->vm->flags & XE_VM_FLAG_64K)
 		expected |= XE_PTE_PS64;
 	if (xe_bo_is_vram(pt))

drivers/gpu/drm/xe/xe_migrate.c

@@ -196,8 +196,7 @@ static int xe_migrate_prepare_vm(struct xe_tile *tile, struct xe_migrate *m,
 
 	/* Map the entire BO in our level 0 pt */
 	for (i = 0, level = 0; i < num_entries; level++) {
-		entry = xe_pte_encode(NULL, bo, i * XE_PAGE_SIZE,
-				      XE_CACHE_WB, 0);
+		entry = xe_pte_encode(bo, i * XE_PAGE_SIZE, XE_CACHE_WB, 0);
 
 		xe_map_wr(xe, &bo->vmap, map_ofs + level * 8, u64, entry);
 
@@ -215,8 +214,7 @@ static int xe_migrate_prepare_vm(struct xe_tile *tile, struct xe_migrate *m,
 		for (i = 0; i < batch->size;
 		     i += vm->flags & XE_VM_FLAG_64K ? XE_64K_PAGE_SIZE :
 		     XE_PAGE_SIZE) {
-			entry = xe_pte_encode(NULL, batch, i,
-					      XE_CACHE_WB, 0);
+			entry = xe_pte_encode(batch, i, XE_CACHE_WB, 0);
 
 			xe_map_wr(xe, &bo->vmap, map_ofs + level * 8, u64,
 				  entry);
@@ -1235,7 +1233,7 @@ xe_migrate_update_pgtables(struct xe_migrate *m,
 
 			BUG_ON(pt_bo->size != SZ_4K);
 
-			addr = xe_pte_encode(NULL, pt_bo, 0, XE_CACHE_WB, 0);
+			addr = xe_pte_encode(pt_bo, 0, XE_CACHE_WB, 0);
 			bb->cs[bb->len++] = lower_32_bits(addr);
 			bb->cs[bb->len++] = upper_32_bits(addr);
 		}

drivers/gpu/drm/xe/xe_pt.c

@@ -78,30 +78,6 @@ u64 xe_pde_encode(struct xe_bo *bo, u64 bo_offset,
 	return pde;
 }
 
-static dma_addr_t vma_addr(struct xe_vma *vma, u64 offset,
-			   size_t page_size, bool *is_vram)
-{
-	if (xe_vma_is_null(vma)) {
-		*is_vram = 0;
-		return 0;
-	}
-
-	if (xe_vma_is_userptr(vma)) {
-		struct xe_res_cursor cur;
-		u64 page;
-
-		*is_vram = false;
-		page = offset >> PAGE_SHIFT;
-		offset &= (PAGE_SIZE - 1);
-
-		xe_res_first_sg(vma->userptr.sg, page << PAGE_SHIFT, page_size,
-				&cur);
-		return xe_res_dma(&cur) + offset;
-	} else {
-		return xe_bo_addr(xe_vma_bo(vma), offset, page_size, is_vram);
-	}
-}
-
 static u64 __pte_encode(u64 pte, enum xe_cache_level cache,
 			struct xe_vma *vma, u32 pt_level)
 {
@@ -140,34 +116,25 @@ static u64 __pte_encode(u64 pte, enum xe_cache_level cache,
 
 /**
  * xe_pte_encode() - Encode a page-table entry pointing to memory.
- * @vma: The vma representing the memory to point to.
- * @bo: If @vma is NULL, representing the memory to point to.
- * @offset: The offset into @vma or @bo.
+ * @bo: The BO representing the memory to point to.
+ * @offset: The offset into @bo.
  * @cache: The cache level indicating
  * @pt_level: The page-table level of the page-table into which the entry
  * is to be inserted.
  *
  * Return: An encoded page-table entry. No errors.
  */
-u64 xe_pte_encode(struct xe_vma *vma, struct xe_bo *bo,
-		  u64 offset, enum xe_cache_level cache,
+u64 xe_pte_encode(struct xe_bo *bo, u64 offset, enum xe_cache_level cache,
 		  u32 pt_level)
 {
 	u64 pte;
 	bool is_vram;
 
-	if (vma)
-		pte = vma_addr(vma, offset, XE_PAGE_SIZE, &is_vram);
-	else
 	pte = xe_bo_addr(bo, offset, XE_PAGE_SIZE, &is_vram);
-
-	if (is_vram) {
+	if (is_vram)
 		pte |= XE_PPGTT_PTE_LM;
-		if (vma && vma->gpuva.flags & XE_VMA_ATOMIC_PTE_BIT)
-			pte |= XE_USM_PPGTT_PTE_AE;
-	}
 
-	return __pte_encode(pte, cache, vma, pt_level);
+	return __pte_encode(pte, cache, NULL, pt_level);
 }
 
 static u64 __xe_pt_empty_pte(struct xe_tile *tile, struct xe_vm *vm,
@@ -179,7 +146,7 @@ static u64 __xe_pt_empty_pte(struct xe_tile *tile, struct xe_vm *vm,
 		return 0;
 
 	if (level == 0) {
-		u64 empty = xe_pte_encode(NULL, vm->scratch_bo[id], 0,
+		u64 empty = xe_pte_encode(vm->scratch_bo[id], 0,
 					  XE_CACHE_WB, 0);
 
 		return empty;

drivers/gpu/drm/xe/xe_pt.h

@@ -48,7 +48,7 @@ bool xe_pt_zap_ptes(struct xe_tile *tile, struct xe_vma *vma);
 u64 xe_pde_encode(struct xe_bo *bo, u64 bo_offset,
 		  const enum xe_cache_level level);
 
-u64 xe_pte_encode(struct xe_vma *vma, struct xe_bo *bo,
-		  u64 offset, enum xe_cache_level cache,
+u64 xe_pte_encode(struct xe_bo *bo, u64 offset, enum xe_cache_level cache,
 		  u32 pt_level);
+
 #endif