diff options
Diffstat (limited to 'drivers/gpu/drm/radeon/radeon_device.c')
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_device.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index 8d3e3d2e0090..e415d2c097a7 100644 --- a/drivers/gpu/drm/radeon/radeon_device.c +++ b/drivers/gpu/drm/radeon/radeon_device.c @@ -29,6 +29,7 @@ #include <linux/slab.h> #include <drm/drmP.h> #include <drm/drm_crtc_helper.h> +#include <drm/drm_cache.h> #include <drm/radeon_drm.h> #include <linux/pm_runtime.h> #include <linux/vgaarb.h> @@ -1365,6 +1366,10 @@ int radeon_device_init(struct radeon_device *rdev, if ((rdev->flags & RADEON_IS_PCI) && (rdev->family <= CHIP_RS740)) rdev->need_dma32 = true; +#ifdef CONFIG_PPC64 + if (rdev->family == CHIP_CEDAR) + rdev->need_dma32 = true; +#endif dma_bits = rdev->need_dma32 ? 32 : 40; r = pci_set_dma_mask(rdev->pdev, DMA_BIT_MASK(dma_bits)); @@ -1378,6 +1383,7 @@ int radeon_device_init(struct radeon_device *rdev, pci_set_consistent_dma_mask(rdev->pdev, DMA_BIT_MASK(32)); pr_warn("radeon: No coherent DMA available\n"); } + rdev->need_swiotlb = drm_get_max_iomem() > ((u64)1 << dma_bits); /* Registers mapping */ /* TODO: block userspace mapping of io register */ |
