drm/exynos: fix incorrect cpu address for dma_mmap_attrs()

dma_mmap_attrs() should be called with cpu address returned by
dma_alloc_attrs(). Existing code however passed pages array base as cpu
address. This worked only by a pure luck on ARM architecture. This patch
fixes this issue.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>

diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
index f6118ba..8baabd8 100644 (file)
--- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
@@ -50,7 +50,7 @@ static int exynos_drm_fb_mmap(struct fb_info *info,
        if (vm_size > exynos_gem->size)
                return -EINVAL;
 
-       ret = dma_mmap_attrs(helper->dev->dev, vma, exynos_gem->pages,
+       ret = dma_mmap_attrs(helper->dev->dev, vma, exynos_gem->cookie,
                             exynos_gem->dma_addr, exynos_gem->size,
                             &exynos_gem->dma_attrs);
        if (ret < 0) {

diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c
index 47d126a..26b5e4b 100644 (file)
--- a/drivers/gpu/drm/exynos/exynos_drm_gem.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c
@@ -335,7 +335,7 @@ static int exynos_drm_gem_mmap_buffer(struct exynos_drm_gem *exynos_gem,
        if (vm_size > exynos_gem->size)
                return -EINVAL;
 
-       ret = dma_mmap_attrs(drm_dev->dev, vma, exynos_gem->pages,
+       ret = dma_mmap_attrs(drm_dev->dev, vma, exynos_gem->cookie,
                             exynos_gem->dma_addr, exynos_gem->size,
                             &exynos_gem->dma_attrs);
        if (ret < 0) {