drm/exynos: fix linux framebuffer address setting.
authorInki Dae <inki.dae@samsung.com>
Fri, 9 Nov 2012 07:41:29 +0000 (16:41 +0900)
committerInki Dae <daeinki@gmail.com>
Thu, 29 Nov 2012 11:30:33 +0000 (03:30 -0800)
With iommu, buffer->dma_addr has device addres so this patch
fixes for physical address to be set to fix.smem_start always.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
drivers/gpu/drm/exynos/exynos_drm_fbdev.c

index 67eb6ba56edf4b1bffe805a3bd5c06973c532726..e7466c4414cb8f04e8b462ce98a28dbe6a539b5e 100644 (file)
@@ -87,7 +87,8 @@ static int exynos_drm_fbdev_update(struct drm_fb_helper *helper,
 
        dev->mode_config.fb_base = (resource_size_t)buffer->dma_addr;
        fbi->screen_base = buffer->kvaddr + offset;
-       fbi->fix.smem_start = (unsigned long)(buffer->dma_addr + offset);
+       fbi->fix.smem_start = (unsigned long)(page_to_phys(buffer->pages[0]) +
+                               offset);
        fbi->screen_size = size;
        fbi->fix.smem_len = size;