diff options
| author | Dmitry Torokhov <[email protected]> | 2021-05-04 11:46:00 -0700 |
|---|---|---|
| committer | Dmitry Torokhov <[email protected]> | 2021-05-04 11:46:00 -0700 |
| commit | d0034a7a4ac7fae708146ac0059b9c47a1543f0d (patch) | |
| tree | ac3ac88066f0f80632aa754e3ae008994f2426a2 /drivers/gpu/drm/drm_memory.c | |
| parent | 56cfe6f820a6315291eb5a1b82bb49633b993d3b (diff) | |
| parent | d12b64b9764ea17554fb230784ebf91287ed807e (diff) | |
Merge branch 'next' into for-linus
Prepare input updates for 5.13 merge window.
Diffstat (limited to 'drivers/gpu/drm/drm_memory.c')
| -rw-r--r-- | drivers/gpu/drm/drm_memory.c | 51 |
1 files changed, 0 insertions, 51 deletions
diff --git a/drivers/gpu/drm/drm_memory.c b/drivers/gpu/drm/drm_memory.c index fbea69d6f909..e4f20a2eb6e7 100644 --- a/drivers/gpu/drm/drm_memory.c +++ b/drivers/gpu/drm/drm_memory.c @@ -37,7 +37,6 @@ #include <linux/highmem.h> #include <linux/pci.h> #include <linux/vmalloc.h> -#include <xen/xen.h> #include <drm/drm_agpsupport.h> #include <drm/drm_cache.h> @@ -100,24 +99,6 @@ static void *agp_remap(unsigned long offset, unsigned long size, return addr; } -/** Wrapper around agp_free_memory() */ -void drm_free_agp(struct agp_memory *handle, int pages) -{ - agp_free_memory(handle); -} - -/** Wrapper around agp_bind_memory() */ -int drm_bind_agp(struct agp_memory *handle, unsigned int start) -{ - return agp_bind_memory(handle, start); -} - -/** Wrapper around agp_unbind_memory() */ -int drm_unbind_agp(struct agp_memory *handle) -{ - return agp_unbind_memory(handle); -} - #else /* CONFIG_AGP */ static inline void *agp_remap(unsigned long offset, unsigned long size, struct drm_device *dev) @@ -156,35 +137,3 @@ void drm_legacy_ioremapfree(struct drm_local_map *map, struct drm_device *dev) iounmap(map->handle); } EXPORT_SYMBOL(drm_legacy_ioremapfree); - -bool drm_need_swiotlb(int dma_bits) -{ - struct resource *tmp; - resource_size_t max_iomem = 0; - - /* - * Xen paravirtual hosts require swiotlb regardless of requested dma - * transfer size. - * - * NOTE: Really, what it requires is use of the dma_alloc_coherent - * allocator used in ttm_dma_populate() instead of - * ttm_populate_and_map_pages(), which bounce buffers so much in - * Xen it leads to swiotlb buffer exhaustion. - */ - if (xen_pv_domain()) - return true; - - /* - * Enforce dma_alloc_coherent when memory encryption is active as well - * for the same reasons as for Xen paravirtual hosts. - */ - if (mem_encrypt_active()) - return true; - - for (tmp = iomem_resource.child; tmp; tmp = tmp->sibling) { - max_iomem = max(max_iomem, tmp->end); - } - - return max_iomem > ((u64)1 << dma_bits); -} -EXPORT_SYMBOL(drm_need_swiotlb); |