3 files changed, 10 insertions, 1 deletions
diff --git a/drivers/video/fbdev/Kconfig b/drivers/video/fbdev/Kconfig
index 5befe481af7d..ea36c6956bf3 100644
--- a/drivers/video/fbdev/Kconfig
+++ b/drivers/video/fbdev/Kconfig
@@ -494,6 +494,7 @@ config FB_SBUS_HELPERS
 	select FB_CFB_COPYAREA
 	select FB_CFB_FILLRECT
 	select FB_CFB_IMAGEBLIT
+	select FB_IOMEM_FOPS
 
 config FB_BW2
 	bool "BWtwo support"
@@ -514,6 +515,7 @@ config FB_CG6
 	depends on (FB = y) && (SPARC && FB_SBUS)
 	select FB_CFB_COPYAREA
 	select FB_CFB_IMAGEBLIT
+	select FB_IOMEM_FOPS
 	help
 	  This is the frame buffer device driver for the CGsix (GX, TurboGX)
 	  frame buffer.
@@ -523,6 +525,7 @@ config FB_FFB
 	depends on FB_SBUS && SPARC64
 	select FB_CFB_COPYAREA
 	select FB_CFB_IMAGEBLIT
+	select FB_IOMEM_FOPS
 	help
 	  This is the frame buffer device driver for the Creator, Creator3D,
 	  and Elite3D graphics boards.
diff --git a/drivers/video/fbdev/core/Kconfig b/drivers/video/fbdev/core/Kconfig
index db09fe87fcd4..0ab8848ba2f1 100644
--- a/drivers/video/fbdev/core/Kconfig
+++ b/drivers/video/fbdev/core/Kconfig
@@ -144,6 +144,12 @@ config FB_DMAMEM_HELPERS
 	select FB_SYS_IMAGEBLIT
 	select FB_SYSMEM_FOPS
 
+config FB_DMAMEM_HELPERS_DEFERRED
+	bool
+	depends on FB_CORE
+	select FB_DEFERRED_IO
+	select FB_DMAMEM_HELPERS
+
 config FB_IOMEM_FOPS
 	tristate
 	depends on FB_CORE
diff --git a/drivers/video/fbdev/core/fb_defio.c b/drivers/video/fbdev/core/fb_defio.c
index dae96c9f61cf..806ecd32219b 100644
--- a/drivers/video/fbdev/core/fb_defio.c
+++ b/drivers/video/fbdev/core/fb_defio.c
@@ -196,7 +196,7 @@ err_mutex_unlock:
  */
 static vm_fault_t fb_deferred_io_page_mkwrite(struct fb_info *info, struct vm_fault *vmf)
 {
-	unsigned long offset = vmf->address - vmf->vma->vm_start;
+	unsigned long offset = vmf->pgoff << PAGE_SHIFT;
 	struct page *page = vmf->page;
 
 	file_update_time(vmf->vma->vm_file);