drm/vmwgfx: Replace "vmw_num_pages" with "PFN_UP"

we counld use PFN_UP instead of vmw_num_pages()
Signed-off-by: Cai Huoqing <caihuoqing@baidu.com>
Signed-off-by: Zack Rusin <zackr@vmware.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210802033552.990-1-caihuoqing@baidu.com

drivers/gpu/drm/vmwgfx/device_include/vm_basic_types.h

@@ -97,19 +97,18 @@ typedef __attribute__((aligned(32))) struct MKSGuestStatInfoEntry {
 } MKSGuestStatInfoEntry;
 
 #define INVALID_PPN64       ((PPN64)0x000fffffffffffffULL)
-#define vmw_num_pages(size) (PAGE_ALIGN(size) >> PAGE_SHIFT)
 
 #define MKS_GUEST_STAT_INSTANCE_DESC_LENGTH 1024
 #define MKS_GUEST_STAT_INSTANCE_MAX_STATS   4096
 #define MKS_GUEST_STAT_INSTANCE_MAX_STAT_PPNS        \
-	(vmw_num_pages(MKS_GUEST_STAT_INSTANCE_MAX_STATS *   \
+	(PFN_UP(MKS_GUEST_STAT_INSTANCE_MAX_STATS *  \
 		sizeof(MKSGuestStatCounterTime)))
 #define MKS_GUEST_STAT_INSTANCE_MAX_INFO_PPNS        \
-	(vmw_num_pages(MKS_GUEST_STAT_INSTANCE_MAX_STATS *   \
+	(PFN_UP(MKS_GUEST_STAT_INSTANCE_MAX_STATS *  \
 		sizeof(MKSGuestStatInfoEntry)))
 #define MKS_GUEST_STAT_AVERAGE_NAME_LENGTH  40
 #define MKS_GUEST_STAT_INSTANCE_MAX_STRS_PPNS        \
-	(vmw_num_pages(MKS_GUEST_STAT_INSTANCE_MAX_STATS *   \
+	(PFN_UP(MKS_GUEST_STAT_INSTANCE_MAX_STATS *  \
 		MKS_GUEST_STAT_AVERAGE_NAME_LENGTH))
 
 /*

drivers/gpu/drm/vmwgfx/vmwgfx_msg.c

@@ -1016,9 +1016,9 @@ int vmw_mksstat_add_ioctl(struct drm_device *dev, void *data,
 
 	struct page *page;
 	MKSGuestStatInstanceDescriptor *pdesc;
-	const size_t num_pages_stat = vmw_num_pages(arg->stat_len);
-	const size_t num_pages_info = vmw_num_pages(arg->info_len);
-	const size_t num_pages_strs = vmw_num_pages(arg->strs_len);
+	const size_t num_pages_stat = PFN_UP(arg->stat_len);
+	const size_t num_pages_info = PFN_UP(arg->info_len);
+	const size_t num_pages_strs = PFN_UP(arg->strs_len);
 	long desc_len;
 	long nr_pinned_stat;
 	long nr_pinned_info;