drm/exynos: use DMA_ATTR_NO_KERNEL_MAPPING attribute
Changelog v3:
just code cleanup.
Changelog v2:
fix argument to dma_mmap_attr function.
- use pages instead of kvaddr because kvaddr is 0 with
DMA_ATTR_NO_KERNEL_MAPPING.
Changelog v1:
When gem allocation is requested, kernel space mapping isn't needed.
But if need, such as console framebuffer, the physical pages would be
mapped with kernel space though vmap function.
Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c b/drivers/gpu/drm/exynos/exynos_drm_gem.c
index 9922724..d48183e 100644
--- a/drivers/gpu/drm/exynos/exynos_drm_gem.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_gem.c
@@ -400,7 +400,7 @@
if (vm_size > buffer->size)
return -EINVAL;
- ret = dma_mmap_attrs(drm_dev->dev, vma, buffer->kvaddr,
+ ret = dma_mmap_attrs(drm_dev->dev, vma, buffer->pages,
buffer->dma_addr, buffer->size,
&buffer->dma_attrs);
if (ret < 0) {