diff options
Diffstat (limited to 'drivers/gpu/drm/ttm')
-rw-r--r-- | drivers/gpu/drm/ttm/ttm_bo.c | 4 | ||||
-rw-r--r-- | drivers/gpu/drm/ttm/ttm_bo_util.c | 56 |
2 files changed, 7 insertions, 53 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c index 9e07c3f75156..f73b81c2576e 100644 --- a/drivers/gpu/drm/ttm/ttm_bo.c +++ b/drivers/gpu/drm/ttm/ttm_bo.c @@ -588,7 +588,8 @@ static void ttm_bo_release(struct kref *kref) ttm_mem_io_unlock(man); } - if (!dma_resv_test_signaled_rcu(bo->base.resv, true)) { + if (!dma_resv_test_signaled_rcu(bo->base.resv, true) || + !dma_resv_trylock(bo->base.resv)) { /* The BO is not idle, resurrect it for delayed destroy */ ttm_bo_flush_all_fences(bo); bo->deleted = true; @@ -621,6 +622,7 @@ static void ttm_bo_release(struct kref *kref) spin_unlock(&ttm_bo_glob.lru_lock); ttm_bo_cleanup_memtype_use(bo); + dma_resv_unlock(bo->base.resv); BUG_ON(bo->mem.mm_node != NULL); atomic_dec(&ttm_bo_glob.bo_count); diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c index 52d2b71f1588..f09b096ba4fd 100644 --- a/drivers/gpu/drm/ttm/ttm_bo_util.c +++ b/drivers/gpu/drm/ttm/ttm_bo_util.c @@ -257,54 +257,6 @@ static int ttm_copy_io_page(void *dst, void *src, unsigned long page) return 0; } -#ifdef CONFIG_X86 -#define __ttm_kmap_atomic_prot(__page, __prot) kmap_atomic_prot(__page, __prot) -#define __ttm_kunmap_atomic(__addr) kunmap_atomic(__addr) -#else -#define __ttm_kmap_atomic_prot(__page, __prot) vmap(&__page, 1, 0, __prot) -#define __ttm_kunmap_atomic(__addr) vunmap(__addr) -#endif - - -/** - * ttm_kmap_atomic_prot - Efficient kernel map of a single page with - * specified page protection. - * - * @page: The page to map. - * @prot: The page protection. - * - * This function maps a TTM page using the kmap_atomic api if available, - * otherwise falls back to vmap. The user must make sure that the - * specified page does not have an aliased mapping with a different caching - * policy unless the architecture explicitly allows it. Also mapping and - * unmapping using this api must be correctly nested. Unmapping should - * occur in the reverse order of mapping. - */ -void *ttm_kmap_atomic_prot(struct page *page, pgprot_t prot) -{ - if (pgprot_val(prot) == pgprot_val(PAGE_KERNEL)) - return kmap_atomic(page); - else - return __ttm_kmap_atomic_prot(page, prot); -} -EXPORT_SYMBOL(ttm_kmap_atomic_prot); - -/** - * ttm_kunmap_atomic_prot - Unmap a page that was mapped using - * ttm_kmap_atomic_prot. - * - * @addr: The virtual address from the map. - * @prot: The page protection. - */ -void ttm_kunmap_atomic_prot(void *addr, pgprot_t prot) -{ - if (pgprot_val(prot) == pgprot_val(PAGE_KERNEL)) - kunmap_atomic(addr); - else - __ttm_kunmap_atomic(addr); -} -EXPORT_SYMBOL(ttm_kunmap_atomic_prot); - static int ttm_copy_io_ttm_page(struct ttm_tt *ttm, void *src, unsigned long page, pgprot_t prot) @@ -316,13 +268,13 @@ static int ttm_copy_io_ttm_page(struct ttm_tt *ttm, void *src, return -ENOMEM; src = (void *)((unsigned long)src + (page << PAGE_SHIFT)); - dst = ttm_kmap_atomic_prot(d, prot); + dst = kmap_atomic_prot(d, prot); if (!dst) return -ENOMEM; memcpy_fromio(dst, src, PAGE_SIZE); - ttm_kunmap_atomic_prot(dst, prot); + kunmap_atomic(dst); return 0; } @@ -338,13 +290,13 @@ static int ttm_copy_ttm_io_page(struct ttm_tt *ttm, void *dst, return -ENOMEM; dst = (void *)((unsigned long)dst + (page << PAGE_SHIFT)); - src = ttm_kmap_atomic_prot(s, prot); + src = kmap_atomic_prot(s, prot); if (!src) return -ENOMEM; memcpy_toio(dst, src, PAGE_SIZE); - ttm_kunmap_atomic_prot(src, prot); + kunmap_atomic(src); return 0; } |