Re: [PATCH v3] drm/ttm: rework on ttm_resource to use size_t type

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Am 27.10.22 um 11:12 schrieb Somalapuram Amaranath:
Change ttm_resource structure from num_pages to size_t size in bytes.
v1 -> v2: change PFN_UP(dst_mem->size) to ttm->num_pages
v1 -> v2: change bo->resource->size to bo->base.size at some places
v1 -> v2: remove the local variable
v1 -> v2: cleanup cmp_size_smaller_first()
v2 -> v3: adding missing PFN_UP in ttm_bo_vm_fault_reserved

Signed-off-by: Somalapuram Amaranath <Amaranath.Somalapuram@xxxxxxx>

Pushed to drm-misc-next.

Thanks,
Christian.

---
  drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c    |  2 +-
  drivers/gpu/drm/amd/amdgpu/amdgpu_object.c     |  3 ++-
  drivers/gpu/drm/amd/amdgpu/amdgpu_res_cursor.h |  4 ++--
  drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h      |  2 +-
  drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c        |  6 +++---
  drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c   |  8 ++++----
  drivers/gpu/drm/i915/gem/i915_gem_ttm.c        |  2 +-
  drivers/gpu/drm/i915/i915_scatterlist.c        |  4 ++--
  drivers/gpu/drm/i915/i915_ttm_buddy_manager.c  | 12 ++++++------
  drivers/gpu/drm/i915/intel_region_ttm.c        |  2 +-
  drivers/gpu/drm/nouveau/nouveau_bo.c           |  4 ++--
  drivers/gpu/drm/nouveau/nouveau_bo0039.c       |  4 ++--
  drivers/gpu/drm/nouveau/nouveau_bo5039.c       |  2 +-
  drivers/gpu/drm/nouveau/nouveau_bo74c1.c       |  2 +-
  drivers/gpu/drm/nouveau/nouveau_bo85b5.c       |  4 ++--
  drivers/gpu/drm/nouveau/nouveau_bo9039.c       |  4 ++--
  drivers/gpu/drm/nouveau/nouveau_bo90b5.c       |  4 ++--
  drivers/gpu/drm/nouveau/nouveau_boa0b5.c       |  2 +-
  drivers/gpu/drm/nouveau/nouveau_gem.c          |  5 ++---
  drivers/gpu/drm/nouveau/nouveau_mem.c          |  4 ++--
  drivers/gpu/drm/nouveau/nouveau_ttm.c          |  2 +-
  drivers/gpu/drm/radeon/radeon_cs.c             |  7 +++++--
  drivers/gpu/drm/radeon/radeon_object.c         |  4 ++--
  drivers/gpu/drm/radeon/radeon_trace.h          |  2 +-
  drivers/gpu/drm/radeon/radeon_ttm.c            |  4 ++--
  drivers/gpu/drm/ttm/ttm_bo.c                   |  3 ---
  drivers/gpu/drm/ttm/ttm_bo_util.c              |  6 +++---
  drivers/gpu/drm/ttm/ttm_bo_vm.c                |  4 ++--
  drivers/gpu/drm/ttm/ttm_range_manager.c        |  2 +-
  drivers/gpu/drm/ttm/ttm_resource.c             | 14 ++++++--------
  drivers/gpu/drm/vmwgfx/vmwgfx_blit.c           |  4 ++--
  drivers/gpu/drm/vmwgfx/vmwgfx_bo.c             |  6 +++---
  drivers/gpu/drm/vmwgfx/vmwgfx_cotable.c        |  2 +-
  drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c        |  2 +-
  drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c  |  6 +++---
  drivers/gpu/drm/vmwgfx/vmwgfx_kms.c            |  2 +-
  drivers/gpu/drm/vmwgfx/vmwgfx_page_dirty.c     |  6 +++---
  include/drm/ttm/ttm_resource.h                 |  4 ++--
  38 files changed, 79 insertions(+), 81 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
index 1f3302aebeff..44367f03316f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_gtt_mgr.c
@@ -144,7 +144,7 @@ static int amdgpu_gtt_mgr_new(struct ttm_resource_manager *man,
  		node->base.start = node->mm_nodes[0].start;
  	} else {
  		node->mm_nodes[0].start = 0;
-		node->mm_nodes[0].size = node->base.num_pages;
+		node->mm_nodes[0].size = PFN_UP(node->base.size);
  		node->base.start = AMDGPU_BO_INVALID_OFFSET;
  	}
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
index 2e8f6cd7a729..974e85d8b6cc 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_object.c
@@ -542,6 +542,7 @@ int amdgpu_bo_create(struct amdgpu_device *adev,
  		/* GWS and OA don't need any alignment. */
  		page_align = bp->byte_align;
  		size <<= PAGE_SHIFT;
+
  	} else if (bp->domain & AMDGPU_GEM_DOMAIN_GDS) {
  		/* Both size and alignment must be a multiple of 4. */
  		page_align = ALIGN(bp->byte_align, 4);
@@ -776,7 +777,7 @@ int amdgpu_bo_kmap(struct amdgpu_bo *bo, void **ptr)
  		return 0;
  	}
- r = ttm_bo_kmap(&bo->tbo, 0, bo->tbo.resource->num_pages, &bo->kmap);
+	r = ttm_bo_kmap(&bo->tbo, 0, PFN_UP(bo->tbo.base.size), &bo->kmap);
  	if (r)
  		return r;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_res_cursor.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_res_cursor.h
index 6546552e596c..5c4f93ee0c57 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_res_cursor.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_res_cursor.h
@@ -62,7 +62,7 @@ static inline void amdgpu_res_first(struct ttm_resource *res,
  	if (!res)
  		goto fallback;
- BUG_ON(start + size > res->num_pages << PAGE_SHIFT);
+	BUG_ON(start + size > res->size);
cur->mem_type = res->mem_type; @@ -110,7 +110,7 @@ static inline void amdgpu_res_first(struct ttm_resource *res,
  	cur->size = size;
  	cur->remaining = size;
  	cur->node = NULL;
-	WARN_ON(res && start + size > res->num_pages << PAGE_SHIFT);
+	WARN_ON(res && start + size > res->size);
  	return;
  }
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
index 5e6ddc7e101c..677ad2016976 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_trace.h
@@ -127,7 +127,7 @@ TRACE_EVENT(amdgpu_bo_create,
TP_fast_assign(
  			   __entry->bo = bo;
-			   __entry->pages = bo->tbo.resource->num_pages;
+			   __entry->pages = PFN_UP(bo->tbo.resource->size);
  			   __entry->type = bo->tbo.resource->mem_type;
  			   __entry->prefer = bo->preferred_domains;
  			   __entry->allow = bo->allowed_domains;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
index dc262d2c2925..36066965346f 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c
@@ -381,7 +381,7 @@ static int amdgpu_move_blit(struct ttm_buffer_object *bo,
  	dst.offset = 0;
r = amdgpu_ttm_copy_mem_to_mem(adev, &src, &dst,
-				       new_mem->num_pages << PAGE_SHIFT,
+				       new_mem->size,
  				       amdgpu_bo_encrypted(abo),
  				       bo->base.resv, &fence);
  	if (r)
@@ -424,7 +424,7 @@ static int amdgpu_move_blit(struct ttm_buffer_object *bo,
  static bool amdgpu_mem_visible(struct amdgpu_device *adev,
  			       struct ttm_resource *mem)
  {
-	u64 mem_size = (u64)mem->num_pages << PAGE_SHIFT;
+	u64 mem_size = (u64)mem->size;
  	struct amdgpu_res_cursor cursor;
  	u64 end;
@@ -568,7 +568,7 @@ static int amdgpu_ttm_io_mem_reserve(struct ttm_device *bdev,
  				     struct ttm_resource *mem)
  {
  	struct amdgpu_device *adev = amdgpu_ttm_adev(bdev);
-	size_t bus_size = (size_t)mem->num_pages << PAGE_SHIFT;
+	size_t bus_size = (size_t)mem->size;
switch (mem->mem_type) {
  	case TTM_PL_SYSTEM:
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
index 73a517bcf5c1..18c1a173d187 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c
@@ -439,7 +439,7 @@ static int amdgpu_vram_mgr_new(struct ttm_resource_manager *man,
  		/* Allocate blocks in desired range */
  		vres->flags |= DRM_BUDDY_RANGE_ALLOCATION;
- remaining_size = (u64)vres->base.num_pages << PAGE_SHIFT;
+	remaining_size = (u64)vres->base.size;
mutex_lock(&mgr->lock);
  	while (remaining_size) {
@@ -498,7 +498,7 @@ static int amdgpu_vram_mgr_new(struct ttm_resource_manager *man,
  		LIST_HEAD(temp);
trim_list = &vres->blocks;
-		original_size = (u64)vres->base.num_pages << PAGE_SHIFT;
+		original_size = (u64)vres->base.size;
/*
  		 * If size value is rounded up to min_block_size, trim the last
@@ -533,8 +533,8 @@ static int amdgpu_vram_mgr_new(struct ttm_resource_manager *man,
  			amdgpu_vram_mgr_block_size(block);
  		start >>= PAGE_SHIFT;
- if (start > vres->base.num_pages)
-			start -= vres->base.num_pages;
+		if (start > PFN_UP(vres->base.size))
+			start -= PFN_UP(vres->base.size);
  		else
  			start = 0;
  		vres->base.start = max(vres->base.start, start);
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
index 4f861782c3e8..7a1e92c11946 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_ttm.c
@@ -649,7 +649,7 @@ bool i915_ttm_resource_mappable(struct ttm_resource *res)
  	if (!i915_ttm_cpu_maps_iomem(res))
  		return true;
- return bman_res->used_visible_size == bman_res->base.num_pages;
+	return bman_res->used_visible_size == PFN_UP(bman_res->base.size);
  }
static int i915_ttm_io_mem_reserve(struct ttm_device *bdev, struct ttm_resource *mem)
diff --git a/drivers/gpu/drm/i915/i915_scatterlist.c b/drivers/gpu/drm/i915/i915_scatterlist.c
index dcc081874ec8..114e5e39aa72 100644
--- a/drivers/gpu/drm/i915/i915_scatterlist.c
+++ b/drivers/gpu/drm/i915/i915_scatterlist.c
@@ -158,7 +158,7 @@ struct i915_refct_sgt *i915_rsgt_from_buddy_resource(struct ttm_resource *res,
  						     u32 page_alignment)
  {
  	struct i915_ttm_buddy_resource *bman_res = to_ttm_buddy_resource(res);
-	const u64 size = res->num_pages << PAGE_SHIFT;
+	const u64 size = res->size;
  	const u32 max_segment = round_down(UINT_MAX, page_alignment);
  	struct drm_buddy *mm = bman_res->mm;
  	struct list_head *blocks = &bman_res->blocks;
@@ -177,7 +177,7 @@ struct i915_refct_sgt *i915_rsgt_from_buddy_resource(struct ttm_resource *res,
i915_refct_sgt_init(rsgt, size);
  	st = &rsgt->table;
-	if (sg_alloc_table(st, res->num_pages, GFP_KERNEL)) {
+	if (sg_alloc_table(st, PFN_UP(res->size), GFP_KERNEL)) {
  		i915_refct_sgt_put(rsgt);
  		return ERR_PTR(-ENOMEM);
  	}
diff --git a/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c b/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c
index e19452f0e100..7e611476c7a4 100644
--- a/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c
+++ b/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c
@@ -62,8 +62,8 @@ static int i915_ttm_buddy_man_alloc(struct ttm_resource_manager *man,
  	if (place->fpfn || lpfn != man->size)
  		bman_res->flags |= DRM_BUDDY_RANGE_ALLOCATION;
- GEM_BUG_ON(!bman_res->base.num_pages);
-	size = bman_res->base.num_pages << PAGE_SHIFT;
+	GEM_BUG_ON(!bman_res->base.size);
+	size = bman_res->base.size;
min_page_size = bman->default_page_size;
  	if (bo->page_alignment)
@@ -72,7 +72,7 @@ static int i915_ttm_buddy_man_alloc(struct ttm_resource_manager *man,
  	GEM_BUG_ON(min_page_size < mm->chunk_size);
  	GEM_BUG_ON(!IS_ALIGNED(size, min_page_size));
- if (place->fpfn + bman_res->base.num_pages != place->lpfn &&
+	if (place->fpfn + PFN_UP(bman_res->base.size) != place->lpfn &&
  	    place->flags & TTM_PL_FLAG_CONTIGUOUS) {
  		unsigned long pages;
@@ -108,7 +108,7 @@ static int i915_ttm_buddy_man_alloc(struct ttm_resource_manager *man,
  		goto err_free_blocks;
if (place->flags & TTM_PL_FLAG_CONTIGUOUS) {
-		u64 original_size = (u64)bman_res->base.num_pages << PAGE_SHIFT;
+		u64 original_size = (u64)bman_res->base.size;
drm_buddy_block_trim(mm,
  				     original_size,
@@ -116,7 +116,7 @@ static int i915_ttm_buddy_man_alloc(struct ttm_resource_manager *man,
  	}
if (lpfn <= bman->visible_size) {
-		bman_res->used_visible_size = bman_res->base.num_pages;
+		bman_res->used_visible_size = PFN_UP(bman_res->base.size);
  	} else {
  		struct drm_buddy_block *block;
@@ -228,7 +228,7 @@ static bool i915_ttm_buddy_man_compatible(struct ttm_resource_manager *man, if (!place->fpfn &&
  	    place->lpfn == i915_ttm_buddy_man_visible_size(man))
-		return bman_res->used_visible_size == res->num_pages;
+		return bman_res->used_visible_size == PFN_UP(res->size);
/* Check each drm buddy block individually */
  	list_for_each_entry(block, &bman_res->blocks, link) {
diff --git a/drivers/gpu/drm/i915/intel_region_ttm.c b/drivers/gpu/drm/i915/intel_region_ttm.c
index 575d67bc6ffe..cf89d0c2a2d9 100644
--- a/drivers/gpu/drm/i915/intel_region_ttm.c
+++ b/drivers/gpu/drm/i915/intel_region_ttm.c
@@ -244,7 +244,7 @@ void intel_region_ttm_resource_free(struct intel_memory_region *mem,
  	struct ttm_resource_manager *man = mem->region_private;
  	struct ttm_buffer_object mock_bo = {};
- mock_bo.base.size = res->num_pages << PAGE_SHIFT;
+	mock_bo.base.size = res->size;
  	mock_bo.bdev = &mem->i915->bdev;
  	res->bo = &mock_bo;
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo.c b/drivers/gpu/drm/nouveau/nouveau_bo.c
index 126b3c6e12f9..813937ad1dc2 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo.c
@@ -532,7 +532,7 @@ nouveau_bo_map(struct nouveau_bo *nvbo)
  	if (ret)
  		return ret;
- ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.resource->num_pages, &nvbo->kmap);
+	ret = ttm_bo_kmap(&nvbo->bo, 0, PFN_UP(nvbo->bo.base.size), &nvbo->kmap);
ttm_bo_unreserve(&nvbo->bo);
  	return ret;
@@ -1236,7 +1236,7 @@ vm_fault_t nouveau_ttm_fault_reserve_notify(struct ttm_buffer_object *bo)
  	} else {
  		/* make sure bo is in mappable vram */
  		if (drm->client.device.info.family >= NV_DEVICE_INFO_V0_TESLA ||
-		    bo->resource->start + bo->resource->num_pages < mappable)
+		    bo->resource->start + PFN_UP(bo->resource->size) < mappable)
  			return 0;
for (i = 0; i < nvbo->placement.num_placement; ++i) {
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo0039.c b/drivers/gpu/drm/nouveau/nouveau_bo0039.c
index 7390132129fe..e2ce44adaa5c 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo0039.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo0039.c
@@ -52,7 +52,7 @@ nv04_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
  	u32 src_offset = old_reg->start << PAGE_SHIFT;
  	u32 dst_ctxdma = nouveau_bo_mem_ctxdma(bo, chan, new_reg);
  	u32 dst_offset = new_reg->start << PAGE_SHIFT;
-	u32 page_count = new_reg->num_pages;
+	u32 page_count = PFN_UP(new_reg->size);
  	int ret;
ret = PUSH_WAIT(push, 3);
@@ -62,7 +62,7 @@ nv04_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
  	PUSH_MTHD(push, NV039, SET_CONTEXT_DMA_BUFFER_IN, src_ctxdma,
  			       SET_CONTEXT_DMA_BUFFER_OUT, dst_ctxdma);
- page_count = new_reg->num_pages;
+	page_count = PFN_UP(new_reg->size);
  	while (page_count) {
  		int line_count = (page_count > 2047) ? 2047 : page_count;
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo5039.c b/drivers/gpu/drm/nouveau/nouveau_bo5039.c
index 4c75c7b3804c..c6cf3629a9f9 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo5039.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo5039.c
@@ -41,7 +41,7 @@ nv50_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
  {
  	struct nouveau_mem *mem = nouveau_mem(old_reg);
  	struct nvif_push *push = chan->chan.push;
-	u64 length = (new_reg->num_pages << PAGE_SHIFT);
+	u64 length = new_reg->size;
  	u64 src_offset = mem->vma[0].addr;
  	u64 dst_offset = mem->vma[1].addr;
  	int src_tiled = !!mem->kind;
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo74c1.c b/drivers/gpu/drm/nouveau/nouveau_bo74c1.c
index ed6c09d67840..9b7ba31fae13 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo74c1.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo74c1.c
@@ -44,7 +44,7 @@ nv84_bo_move_exec(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
  	if (ret)
  		return ret;
- PUSH_NVSQ(push, NV74C1, 0x0304, new_reg->num_pages << PAGE_SHIFT,
+	PUSH_NVSQ(push, NV74C1, 0x0304, new_reg->size,
  				0x0308, upper_32_bits(mem->vma[0].addr),
  				0x030c, lower_32_bits(mem->vma[0].addr),
  				0x0310, upper_32_bits(mem->vma[1].addr),
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo85b5.c b/drivers/gpu/drm/nouveau/nouveau_bo85b5.c
index dec29b2d8bb2..a15a38a87a95 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo85b5.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo85b5.c
@@ -44,10 +44,10 @@ nva3_bo_move_copy(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
  	struct nvif_push *push = chan->chan.push;
  	u64 src_offset = mem->vma[0].addr;
  	u64 dst_offset = mem->vma[1].addr;
-	u32 page_count = new_reg->num_pages;
+	u32 page_count = PFN_UP(new_reg->size);
  	int ret;
- page_count = new_reg->num_pages;
+	page_count = PFN_UP(new_reg->size);
  	while (page_count) {
  		int line_count = (page_count > 8191) ? 8191 : page_count;
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo9039.c b/drivers/gpu/drm/nouveau/nouveau_bo9039.c
index 776b04976cdf..d2bb2687d401 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo9039.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo9039.c
@@ -42,10 +42,10 @@ nvc0_bo_move_m2mf(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
  	struct nouveau_mem *mem = nouveau_mem(old_reg);
  	u64 src_offset = mem->vma[0].addr;
  	u64 dst_offset = mem->vma[1].addr;
-	u32 page_count = new_reg->num_pages;
+	u32 page_count = PFN_UP(new_reg->size);
  	int ret;
- page_count = new_reg->num_pages;
+	page_count = PFN_UP(new_reg->size);
  	while (page_count) {
  		int line_count = (page_count > 2047) ? 2047 : page_count;
diff --git a/drivers/gpu/drm/nouveau/nouveau_bo90b5.c b/drivers/gpu/drm/nouveau/nouveau_bo90b5.c
index 8499f58213e3..4618f4f5ab56 100644
--- a/drivers/gpu/drm/nouveau/nouveau_bo90b5.c
+++ b/drivers/gpu/drm/nouveau/nouveau_bo90b5.c
@@ -37,10 +37,10 @@ nvc0_bo_move_copy(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
  	struct nvif_push *push = chan->chan.push;
  	u64 src_offset = mem->vma[0].addr;
  	u64 dst_offset = mem->vma[1].addr;
-	u32 page_count = new_reg->num_pages;
+	u32 page_count = PFN_UP(new_reg->size);
  	int ret;
- page_count = new_reg->num_pages;
+	page_count = PFN_UP(new_reg->size);
  	while (page_count) {
  		int line_count = (page_count > 8191) ? 8191 : page_count;
diff --git a/drivers/gpu/drm/nouveau/nouveau_boa0b5.c b/drivers/gpu/drm/nouveau/nouveau_boa0b5.c
index 575212472e7a..07a5c6302c98 100644
--- a/drivers/gpu/drm/nouveau/nouveau_boa0b5.c
+++ b/drivers/gpu/drm/nouveau/nouveau_boa0b5.c
@@ -58,7 +58,7 @@ nve0_bo_move_copy(struct nouveau_channel *chan, struct ttm_buffer_object *bo,
  				PITCH_IN, PAGE_SIZE,
  				PITCH_OUT, PAGE_SIZE,
  				LINE_LENGTH_IN, PAGE_SIZE,
-				LINE_COUNT, new_reg->num_pages);
+				LINE_COUNT, PFN_UP(new_reg->size));
PUSH_IMMD(push, NVA0B5, LAUNCH_DMA,
  		  NVDEF(NVA0B5, LAUNCH_DMA, DATA_TRANSFER_TYPE, NON_PIPELINED) |
diff --git a/drivers/gpu/drm/nouveau/nouveau_gem.c b/drivers/gpu/drm/nouveau/nouveau_gem.c
index fab542a758ff..ac5793c96957 100644
--- a/drivers/gpu/drm/nouveau/nouveau_gem.c
+++ b/drivers/gpu/drm/nouveau/nouveau_gem.c
@@ -679,7 +679,7 @@ nouveau_gem_pushbuf_reloc_apply(struct nouveau_cli *cli,
  		}
if (!nvbo->kmap.virtual) {
-			ret = ttm_bo_kmap(&nvbo->bo, 0, nvbo->bo.resource->num_pages,
+			ret = ttm_bo_kmap(&nvbo->bo, 0, PFN_UP(nvbo->bo.base.size),
  					  &nvbo->kmap);
  			if (ret) {
  				NV_PRINTK(err, cli, "failed kmap for reloc\n");
@@ -868,8 +868,7 @@ nouveau_gem_ioctl_pushbuf(struct drm_device *dev, void *data,
  			if (unlikely(cmd != req->suffix0)) {
  				if (!nvbo->kmap.virtual) {
  					ret = ttm_bo_kmap(&nvbo->bo, 0,
-							  nvbo->bo.resource->
-							  num_pages,
+							  PFN_UP(nvbo->bo.base.size),
  							  &nvbo->kmap);
  					if (ret) {
  						WIND_RING(chan);
diff --git a/drivers/gpu/drm/nouveau/nouveau_mem.c b/drivers/gpu/drm/nouveau/nouveau_mem.c
index 76f8edefa637..1fde3a5d7c32 100644
--- a/drivers/gpu/drm/nouveau/nouveau_mem.c
+++ b/drivers/gpu/drm/nouveau/nouveau_mem.c
@@ -115,7 +115,7 @@ nouveau_mem_host(struct ttm_resource *reg, struct ttm_tt *tt)
mutex_lock(&drm->master.lock);
  	ret = nvif_mem_ctor_type(mmu, "ttmHostMem", cli->mem->oclass, type, PAGE_SHIFT,
-				 reg->num_pages << PAGE_SHIFT,
+				 reg->size,
  				 &args, sizeof(args), &mem->mem);
  	mutex_unlock(&drm->master.lock);
  	return ret;
@@ -128,7 +128,7 @@ nouveau_mem_vram(struct ttm_resource *reg, bool contig, u8 page)
  	struct nouveau_cli *cli = mem->cli;
  	struct nouveau_drm *drm = cli->drm;
  	struct nvif_mmu *mmu = &cli->mmu;
-	u64 size = ALIGN(reg->num_pages << PAGE_SHIFT, 1 << page);
+	u64 size = ALIGN(reg->size, 1 << page);
  	int ret;
mutex_lock(&drm->master.lock);
diff --git a/drivers/gpu/drm/nouveau/nouveau_ttm.c b/drivers/gpu/drm/nouveau/nouveau_ttm.c
index 9602c30928f2..1469a88910e4 100644
--- a/drivers/gpu/drm/nouveau/nouveau_ttm.c
+++ b/drivers/gpu/drm/nouveau/nouveau_ttm.c
@@ -139,7 +139,7 @@ nv04_gart_manager_new(struct ttm_resource_manager *man,
  	mem = nouveau_mem(*res);
  	ttm_resource_init(bo, place, *res);
  	ret = nvif_vmm_get(&mem->cli->vmm.vmm, PTES, false, 12, 0,
-			   (long)(*res)->num_pages << PAGE_SHIFT, &mem->vma[0]);
+			   (long)(*res)->size, &mem->vma[0]);
  	if (ret) {
  		nouveau_mem_del(man, *res);
  		return ret;
diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c
index 446f7bae54c4..46a27ebf4588 100644
--- a/drivers/gpu/drm/radeon/radeon_cs.c
+++ b/drivers/gpu/drm/radeon/radeon_cs.c
@@ -400,8 +400,11 @@ static int cmp_size_smaller_first(void *priv, const struct list_head *a,
  	struct radeon_bo_list *lb = list_entry(b, struct radeon_bo_list, tv.head);
/* Sort A before B if A is smaller. */
-	return (int)la->robj->tbo.resource->num_pages -
-		(int)lb->robj->tbo.resource->num_pages;
+	if (la->robj->tbo.base.size > lb->robj->tbo.base.size)
+		return 1;
+	if (la->robj->tbo.base.size < lb->robj->tbo.base.size)
+		return -1;
+	return 0;
  }
/**
diff --git a/drivers/gpu/drm/radeon/radeon_object.c b/drivers/gpu/drm/radeon/radeon_object.c
index 00c33b24d5d3..10c0fbd9d2b4 100644
--- a/drivers/gpu/drm/radeon/radeon_object.c
+++ b/drivers/gpu/drm/radeon/radeon_object.c
@@ -232,7 +232,7 @@ int radeon_bo_kmap(struct radeon_bo *bo, void **ptr)
  		}
  		return 0;
  	}
-	r = ttm_bo_kmap(&bo->tbo, 0, bo->tbo.resource->num_pages, &bo->kmap);
+	r = ttm_bo_kmap(&bo->tbo, 0, PFN_UP(bo->tbo.base.size), &bo->kmap);
  	if (r) {
  		return r;
  	}
@@ -737,7 +737,7 @@ vm_fault_t radeon_bo_fault_reserve_notify(struct ttm_buffer_object *bo)
  	if (bo->resource->mem_type != TTM_PL_VRAM)
  		return 0;
- size = bo->resource->num_pages << PAGE_SHIFT;
+	size = bo->resource->size;
  	offset = bo->resource->start << PAGE_SHIFT;
  	if ((offset + size) <= rdev->mc.visible_vram_size)
  		return 0;
diff --git a/drivers/gpu/drm/radeon/radeon_trace.h b/drivers/gpu/drm/radeon/radeon_trace.h
index c9fed5f2b870..22676617e1a5 100644
--- a/drivers/gpu/drm/radeon/radeon_trace.h
+++ b/drivers/gpu/drm/radeon/radeon_trace.h
@@ -22,7 +22,7 @@ TRACE_EVENT(radeon_bo_create,
TP_fast_assign(
  			   __entry->bo = bo;
-			   __entry->pages = bo->tbo.resource->num_pages;
+			   __entry->pages = PFN_UP(bo->tbo.resource->size);
  			   ),
  	    TP_printk("bo=%p, pages=%u", __entry->bo, __entry->pages)
  );
diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c
index d33fec488713..fff48306c05f 100644
--- a/drivers/gpu/drm/radeon/radeon_ttm.c
+++ b/drivers/gpu/drm/radeon/radeon_ttm.c
@@ -181,7 +181,7 @@ static int radeon_move_blit(struct ttm_buffer_object *bo,
BUILD_BUG_ON((PAGE_SIZE % RADEON_GPU_PAGE_SIZE) != 0); - num_pages = new_mem->num_pages * (PAGE_SIZE / RADEON_GPU_PAGE_SIZE);
+	num_pages = PFN_UP(new_mem->size) * (PAGE_SIZE / RADEON_GPU_PAGE_SIZE);
  	fence = radeon_copy(rdev, old_start, new_start, num_pages, bo->base.resv);
  	if (IS_ERR(fence))
  		return PTR_ERR(fence);
@@ -268,7 +268,7 @@ static int radeon_bo_move(struct ttm_buffer_object *bo, bool evict,
  static int radeon_ttm_io_mem_reserve(struct ttm_device *bdev, struct ttm_resource *mem)
  {
  	struct radeon_device *rdev = radeon_get_rdev(bdev);
-	size_t bus_size = (size_t)mem->num_pages << PAGE_SHIFT;
+	size_t bus_size = (size_t)mem->size;
switch (mem->mem_type) {
  	case TTM_PL_SYSTEM:
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 7c8e8be774f1..c3f4b33136e5 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -51,9 +51,6 @@ static void ttm_bo_mem_space_debug(struct ttm_buffer_object *bo,
  	struct ttm_resource_manager *man;
  	int i, mem_type;
- drm_printf(&p, "No space for %p (%lu pages, %zuK, %zuM)\n",
-		   bo, bo->resource->num_pages, bo->base.size >> 10,
-		   bo->base.size >> 20);
  	for (i = 0; i < placement->num_placement; i++) {
  		mem_type = placement->placement[i].mem_type;
  		drm_printf(&p, "  placement[%d]=0x%08X (%d)\n",
diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c
index fa04e62202c1..ba3aa0a0fc43 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_util.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_util.c
@@ -173,7 +173,7 @@ int ttm_bo_move_memcpy(struct ttm_buffer_object *bo,
clear = src_iter->ops->maps_tt && (!ttm || !ttm_tt_is_populated(ttm));
  	if (!(clear && ttm && !(ttm->page_flags & TTM_TT_FLAG_ZERO_ALLOC)))
-		ttm_move_memcpy(clear, dst_mem->num_pages, dst_iter, src_iter);
+		ttm_move_memcpy(clear, ttm->num_pages, dst_iter, src_iter);
if (!src_iter->ops->maps_tt)
  		ttm_kmap_iter_linear_io_fini(&_src_iter.io, bdev, src_mem);
@@ -357,9 +357,9 @@ int ttm_bo_kmap(struct ttm_buffer_object *bo,
map->virtual = NULL;
  	map->bo = bo;
-	if (num_pages > bo->resource->num_pages)
+	if (num_pages > PFN_UP(bo->resource->size))
  		return -EINVAL;
-	if ((start_page + num_pages) > bo->resource->num_pages)
+	if ((start_page + num_pages) > PFN_UP(bo->resource->size))
  		return -EINVAL;
ret = ttm_mem_io_reserve(bo->bdev, bo->resource);
diff --git a/drivers/gpu/drm/ttm/ttm_bo_vm.c b/drivers/gpu/drm/ttm/ttm_bo_vm.c
index 38119311284d..5a3e4b891377 100644
--- a/drivers/gpu/drm/ttm/ttm_bo_vm.c
+++ b/drivers/gpu/drm/ttm/ttm_bo_vm.c
@@ -217,7 +217,7 @@ vm_fault_t ttm_bo_vm_fault_reserved(struct vm_fault *vmf,
  	page_last = vma_pages(vma) + vma->vm_pgoff -
  		drm_vma_node_start(&bo->base.vma_node);
- if (unlikely(page_offset >= bo->resource->num_pages))
+	if (unlikely(page_offset >= PFN_UP(bo->base.size)))
  		return VM_FAULT_SIGBUS;
prot = ttm_io_prot(bo, bo->resource, prot);
@@ -412,7 +412,7 @@ int ttm_bo_vm_access(struct vm_area_struct *vma, unsigned long addr,
  		 << PAGE_SHIFT);
  	int ret;
- if (len < 1 || (offset + len) >> PAGE_SHIFT > bo->resource->num_pages)
+	if (len < 1 || (offset + len) > bo->base.size)
  		return -EIO;
ret = ttm_bo_reserve(bo, true, false, NULL);
diff --git a/drivers/gpu/drm/ttm/ttm_range_manager.c b/drivers/gpu/drm/ttm/ttm_range_manager.c
index f7c16c46cfbc..0a8bc0b7f380 100644
--- a/drivers/gpu/drm/ttm/ttm_range_manager.c
+++ b/drivers/gpu/drm/ttm/ttm_range_manager.c
@@ -83,7 +83,7 @@ static int ttm_range_man_alloc(struct ttm_resource_manager *man,
spin_lock(&rman->lock);
  	ret = drm_mm_insert_node_in_range(mm, &node->mm_nodes[0],
-					  node->base.num_pages,
+					  PFN_UP(node->base.size),
  					  bo->page_alignment, 0,
  					  place->fpfn, lpfn, mode);
  	spin_unlock(&rman->lock);
diff --git a/drivers/gpu/drm/ttm/ttm_resource.c b/drivers/gpu/drm/ttm/ttm_resource.c
index a729c32a1e48..328391bb1d87 100644
--- a/drivers/gpu/drm/ttm/ttm_resource.c
+++ b/drivers/gpu/drm/ttm/ttm_resource.c
@@ -177,7 +177,7 @@ void ttm_resource_init(struct ttm_buffer_object *bo,
  	struct ttm_resource_manager *man;
res->start = 0;
-	res->num_pages = PFN_UP(bo->base.size);
+	res->size = bo->base.size;
  	res->mem_type = place->mem_type;
  	res->placement = place->flags;
  	res->bus.addr = NULL;
@@ -192,7 +192,7 @@ void ttm_resource_init(struct ttm_buffer_object *bo,
  		list_add_tail(&res->lru, &bo->bdev->pinned);
  	else
  		list_add_tail(&res->lru, &man->lru[bo->priority]);
-	man->usage += res->num_pages << PAGE_SHIFT;
+	man->usage += res->size;
  	spin_unlock(&bo->bdev->lru_lock);
  }
  EXPORT_SYMBOL(ttm_resource_init);
@@ -214,7 +214,7 @@ void ttm_resource_fini(struct ttm_resource_manager *man,
spin_lock(&bdev->lru_lock);
  	list_del_init(&res->lru);
-	man->usage -= res->num_pages << PAGE_SHIFT;
+	man->usage -= res->size;
  	spin_unlock(&bdev->lru_lock);
  }
  EXPORT_SYMBOL(ttm_resource_fini);
@@ -665,17 +665,15 @@ ttm_kmap_iter_linear_io_init(struct ttm_kmap_iter_linear_io *iter_io,
  		iosys_map_set_vaddr(&iter_io->dmap, mem->bus.addr);
  		iter_io->needs_unmap = false;
  	} else {
-		size_t bus_size = (size_t)mem->num_pages << PAGE_SHIFT;
-
  		iter_io->needs_unmap = true;
  		memset(&iter_io->dmap, 0, sizeof(iter_io->dmap));
  		if (mem->bus.caching == ttm_write_combined)
  			iosys_map_set_vaddr_iomem(&iter_io->dmap,
  						  ioremap_wc(mem->bus.offset,
-							     bus_size));
+							     mem->size));
  		else if (mem->bus.caching == ttm_cached)
  			iosys_map_set_vaddr(&iter_io->dmap,
-					    memremap(mem->bus.offset, bus_size,
+					    memremap(mem->bus.offset, mem->size,
  						     MEMREMAP_WB |
  						     MEMREMAP_WT |
  						     MEMREMAP_WC));
@@ -684,7 +682,7 @@ ttm_kmap_iter_linear_io_init(struct ttm_kmap_iter_linear_io *iter_io,
  		if (iosys_map_is_null(&iter_io->dmap))
  			iosys_map_set_vaddr_iomem(&iter_io->dmap,
  						  ioremap(mem->bus.offset,
-							  bus_size));
+							  mem->size));
if (iosys_map_is_null(&iter_io->dmap)) {
  			ret = -ENOMEM;
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_blit.c b/drivers/gpu/drm/vmwgfx/vmwgfx_blit.c
index 09fe20e918f9..c52c7bf1485b 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_blit.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_blit.c
@@ -483,8 +483,8 @@ int vmw_bo_cpu_blit(struct ttm_buffer_object *dst,
  	d.src_addr = NULL;
  	d.dst_pages = dst->ttm->pages;
  	d.src_pages = src->ttm->pages;
-	d.dst_num_pages = dst->resource->num_pages;
-	d.src_num_pages = src->resource->num_pages;
+	d.dst_num_pages = PFN_UP(dst->resource->size);
+	d.src_num_pages = PFN_UP(src->resource->size);
  	d.dst_prot = ttm_io_prot(dst, dst->resource, PAGE_KERNEL);
  	d.src_prot = ttm_io_prot(src, src->resource, PAGE_KERNEL);
  	d.diff = diff;
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c b/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c
index 822251aaab0a..b0c1f5a0df0d 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c
@@ -194,7 +194,7 @@ int vmw_bo_pin_in_start_of_vram(struct vmw_private *dev_priv,
  	int ret = 0;
place = vmw_vram_placement.placement[0];
-	place.lpfn = bo->resource->num_pages;
+	place.lpfn = PFN_UP(bo->resource->size);
  	placement.num_placement = 1;
  	placement.placement = &place;
  	placement.num_busy_placement = 1;
@@ -211,7 +211,7 @@ int vmw_bo_pin_in_start_of_vram(struct vmw_private *dev_priv,
  	 * that situation.
  	 */
  	if (bo->resource->mem_type == TTM_PL_VRAM &&
-	    bo->resource->start < bo->resource->num_pages &&
+	    bo->resource->start < PFN_UP(bo->resource->size) &&
  	    bo->resource->start > 0 &&
  	    buf->base.pin_count == 0) {
  		ctx.interruptible = false;
@@ -352,7 +352,7 @@ void *vmw_bo_map_and_cache(struct vmw_buffer_object *vbo)
  	if (virtual)
  		return virtual;
- ret = ttm_bo_kmap(bo, 0, bo->resource->num_pages, &vbo->map);
+	ret = ttm_bo_kmap(bo, 0, PFN_UP(bo->base.size), &vbo->map);
  	if (ret)
  		DRM_ERROR("Buffer object map failed: %d.\n", ret);
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_cotable.c b/drivers/gpu/drm/vmwgfx/vmwgfx_cotable.c
index 79b30dc9d825..c5ed49241f9d 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_cotable.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_cotable.c
@@ -427,7 +427,7 @@ static int vmw_cotable_resize(struct vmw_resource *res, size_t new_size)
  	 * Do a page by page copy of COTables. This eliminates slow vmap()s.
  	 * This should really be a TTM utility.
  	 */
-	for (i = 0; i < old_bo->resource->num_pages; ++i) {
+	for (i = 0; i < PFN_UP(old_bo->resource->size); ++i) {
  		bool dummy;
ret = ttm_bo_kmap(old_bo, i, 1, &old_map);
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
index f085dbd4736d..2fb53aa57a56 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_execbuf.c
@@ -1047,7 +1047,7 @@ static int vmw_query_bo_switch_prepare(struct vmw_private *dev_priv,
if (unlikely(new_query_bo != sw_context->cur_query_bo)) { - if (unlikely(new_query_bo->base.resource->num_pages > 4)) {
+		if (unlikely(PFN_UP(new_query_bo->base.resource->size) > 4)) {
  			VMW_DEBUG_USER("Query buffer too large.\n");
  			return -EINVAL;
  		}
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c b/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c
index 60e3cc537f36..abd5e3323ebf 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c
@@ -71,7 +71,7 @@ static int vmw_gmrid_man_get_node(struct ttm_resource_manager *man,
  	spin_lock(&gman->lock);
if (gman->max_gmr_pages > 0) {
-		gman->used_gmr_pages += (*res)->num_pages;
+		gman->used_gmr_pages += PFN_UP((*res)->size);
  		/*
  		 * Because the graphics memory is a soft limit we can try to
  		 * expand it instead of letting the userspace apps crash.
@@ -114,7 +114,7 @@ static int vmw_gmrid_man_get_node(struct ttm_resource_manager *man,
  	return 0;
nospace:
-	gman->used_gmr_pages -= (*res)->num_pages;
+	gman->used_gmr_pages -= PFN_UP((*res)->size);
  	spin_unlock(&gman->lock);
  	ida_free(&gman->gmr_ida, id);
  	ttm_resource_fini(man, *res);
@@ -129,7 +129,7 @@ static void vmw_gmrid_man_put_node(struct ttm_resource_manager *man,
ida_free(&gman->gmr_ida, res->start);
  	spin_lock(&gman->lock);
-	gman->used_gmr_pages -= res->num_pages;
+	gman->used_gmr_pages -= PFN_UP(res->size);
  	spin_unlock(&gman->lock);
  	ttm_resource_fini(man, res);
  	kfree(res);
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
index 214829c32ed8..46c2642b3ec5 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -587,7 +587,7 @@ vmw_du_cursor_plane_prepare_fb(struct drm_plane *plane,
cm_bo = vcp->cursor_mob[cursor_mob_idx]; - if (cm_bo->resource->num_pages * PAGE_SIZE < size) {
+			if (cm_bo->resource->size < size) {
  				ret = -EINVAL;
  				goto error_bo_unmap;
  			}
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_page_dirty.c b/drivers/gpu/drm/vmwgfx/vmwgfx_page_dirty.c
index 7bc99b1279f7..f41f041559f4 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_page_dirty.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_page_dirty.c
@@ -230,7 +230,7 @@ void vmw_bo_dirty_unmap(struct vmw_buffer_object *vbo,
  int vmw_bo_dirty_add(struct vmw_buffer_object *vbo)
  {
  	struct vmw_bo_dirty *dirty = vbo->dirty;
-	pgoff_t num_pages = vbo->base.resource->num_pages;
+	pgoff_t num_pages = PFN_UP(vbo->base.resource->size);
  	size_t size;
  	int ret;
@@ -395,7 +395,7 @@ vm_fault_t vmw_bo_vm_mkwrite(struct vm_fault *vmf)
  		return ret;
page_offset = vmf->pgoff - drm_vma_node_start(&bo->base.vma_node);
-	if (unlikely(page_offset >= bo->resource->num_pages)) {
+	if (unlikely(page_offset >= PFN_UP(bo->resource->size))) {
  		ret = VM_FAULT_SIGBUS;
  		goto out_unlock;
  	}
@@ -438,7 +438,7 @@ vm_fault_t vmw_bo_vm_fault(struct vm_fault *vmf)
page_offset = vmf->pgoff -
  			drm_vma_node_start(&bo->base.vma_node);
-		if (page_offset >= bo->resource->num_pages ||
+		if (page_offset >= PFN_UP(bo->resource->size) ||
  		    vmw_resources_clean(vbo, page_offset,
  					page_offset + PAGE_SIZE,
  					&allowed_prefault)) {
diff --git a/include/drm/ttm/ttm_resource.h b/include/drm/ttm/ttm_resource.h
index 5afc6d664fde..78a226eba953 100644
--- a/include/drm/ttm/ttm_resource.h
+++ b/include/drm/ttm/ttm_resource.h
@@ -197,7 +197,7 @@ struct ttm_bus_placement {
   * struct ttm_resource
   *
   * @start: Start of the allocation.
- * @num_pages: Actual size of resource in pages.
+ * @size: Actual size of resource in bytes.
   * @mem_type: Resource type of the allocation.
   * @placement: Placement flags.
   * @bus: Placement on io bus accessible to the CPU
@@ -208,7 +208,7 @@ struct ttm_bus_placement {
   */
  struct ttm_resource {
  	unsigned long start;
-	unsigned long num_pages;
+	size_t size;
  	uint32_t mem_type;
  	uint32_t placement;
  	struct ttm_bus_placement bus;




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