drm/ttm: rework on ttm_resource to use size_t type

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@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221027091237.983582-1-Amaranath.Somalapuram@amd.com
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Christian König <christian.koenig@amd.com>

4 files changed, 10 insertions, 7 deletions

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 @@ out:
 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: