drm/exynos: fix incorrect cpu address for dma_mmap_attrs()
authorMarek Szyprowski <m.szyprowski@samsung.com>
Thu, 11 Feb 2016 11:32:07 +0000 (12:32 +0100)
committerInki Dae <daeinki@gmail.com>
Tue, 1 Mar 2016 14:37:15 +0000 (23:37 +0900)
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>
drivers/gpu/drm/exynos/exynos_drm_fbdev.c
drivers/gpu/drm/exynos/exynos_drm_gem.c

index f6118baa8e3efad8732f8297ab6f6529d763171e..8baabd813ff55a1d713b0bdbf11386c135878d9a 100644 (file)
@@ -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) {
index 47d126ab6e07875504981a094a85ad69b787e6b4..26b5e4bd55b6afd8f1cb042da863e90a5ee6ef8c 100644 (file)
@@ -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) {