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 | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c index 67eb6ba..e7466c4 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c +++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c @@ -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;