diff options
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon.h | 1 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_device.c | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/radeon/radeon_ttm.c | 6 |
3 files changed, 6 insertions, 3 deletions
diff --git a/drivers/gpu/drm/radeon/radeon.h b/drivers/gpu/drm/radeon/radeon.h index d34887873dea..4a2eb409aacc 100644 --- a/drivers/gpu/drm/radeon/radeon.h +++ b/drivers/gpu/drm/radeon/radeon.h @@ -2387,6 +2387,7 @@ struct radeon_device { struct radeon_dummy_page dummy_page; bool shutdown; bool need_dma32; + bool need_swiotlb; bool accel_working; bool fastfb_working; /* IGP feature*/ bool needs_reset, in_reset; diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c index 8d3e3d2e0090..7f40c6f7c4dd 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> @@ -1378,6 +1379,7 @@ 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 */ diff --git a/drivers/gpu/drm/radeon/radeon_ttm.c b/drivers/gpu/drm/radeon/radeon_ttm.c index a0a839bc39bf..c1e3862a48a4 100644 --- a/drivers/gpu/drm/radeon/radeon_ttm.c +++ b/drivers/gpu/drm/radeon/radeon_ttm.c @@ -756,7 +756,7 @@ static int radeon_ttm_tt_populate(struct ttm_tt *ttm, #endif #ifdef CONFIG_SWIOTLB - if (swiotlb_nr_tbl()) { + if (rdev->need_swiotlb && swiotlb_nr_tbl()) { return ttm_dma_populate(>t->ttm, rdev->dev, ctx); } #endif @@ -788,7 +788,7 @@ static void radeon_ttm_tt_unpopulate(struct ttm_tt *ttm) #endif #ifdef CONFIG_SWIOTLB - if (swiotlb_nr_tbl()) { + if (rdev->need_swiotlb && swiotlb_nr_tbl()) { ttm_dma_unpopulate(>t->ttm, rdev->dev); return; } @@ -1155,7 +1155,7 @@ static int radeon_ttm_debugfs_init(struct radeon_device *rdev) count = ARRAY_SIZE(radeon_ttm_debugfs_list); #ifdef CONFIG_SWIOTLB - if (!swiotlb_nr_tbl()) + if (!(rdev->need_swiotlb && swiotlb_nr_tbl())) --count; #endif |