Merge tag 'dma-mapping-5.3' of git://git.infradead.org/users/hch/dma-mapping

Pull dma-mapping updates from Christoph Hellwig:

 - move the USB special case that bounced DMA through a device bar into
   the USB code instead of handling it in the common DMA code (Laurentiu
   Tudor and Fredrik Noring)

 - don't dip into the global CMA pool for single page allocations
   (Nicolin Chen)

 - fix a crash when allocating memory for the atomic pool failed during
   boot (Florian Fainelli)

 - move support for MIPS-style uncached segments to the common code and
   use that for MIPS and nios2 (me)

 - make support for DMA_ATTR_NON_CONSISTENT and
   DMA_ATTR_NO_KERNEL_MAPPING generic (me)

 - convert nds32 to the generic remapping allocator (me)

* tag 'dma-mapping-5.3' of git://git.infradead.org/users/hch/dma-mapping: (29 commits)
  dma-mapping: mark dma_alloc_need_uncached as __always_inline
  MIPS: only select ARCH_HAS_UNCACHED_SEGMENT for non-coherent platforms
  usb: host: Fix excessive alignment restriction for local memory allocations
  lib/genalloc.c: Add algorithm, align and zeroed family of DMA allocators
  nios2: use the generic uncached segment support in dma-direct
  nds32: use the generic remapping allocator for coherent DMA allocations
  arc: use the generic remapping allocator for coherent DMA allocations
  dma-direct: handle DMA_ATTR_NO_KERNEL_MAPPING in common code
  dma-direct: handle DMA_ATTR_NON_CONSISTENT in common code
  dma-mapping: add a dma_alloc_need_uncached helper
  openrisc: remove the partial DMA_ATTR_NON_CONSISTENT support
  arc: remove the partial DMA_ATTR_NON_CONSISTENT support
  arm-nommu: remove the partial DMA_ATTR_NON_CONSISTENT support
  ARM: dma-mapping: allow larger DMA mask than supported
  dma-mapping: truncate dma masks to what dma_addr_t can hold
  iommu/dma: Apply dma_{alloc,free}_contiguous functions
  dma-remap: Avoid de-referencing NULL atomic_pool
  MIPS: use the generic uncached segment support in dma-direct
  dma-direct: provide generic support for uncached kernel segments
  au1100fb: fix DMA API abuse
  ...

1 files changed, 9 insertions, 0 deletions

diff --git a/include/linux/genalloc.h b/include/linux/genalloc.h
index 205f62b8d291..4bd583bd6934 100644
--- a/include/linux/genalloc.h
+++ b/include/linux/genalloc.h
@@ -155,6 +155,15 @@ static inline unsigned long gen_pool_alloc(struct gen_pool *pool, size_t size)
 
 extern void *gen_pool_dma_alloc(struct gen_pool *pool, size_t size,
 		dma_addr_t *dma);
+extern void *gen_pool_dma_alloc_algo(struct gen_pool *pool, size_t size,
+		dma_addr_t *dma, genpool_algo_t algo, void *data);
+extern void *gen_pool_dma_alloc_align(struct gen_pool *pool, size_t size,
+		dma_addr_t *dma, int align);
+extern void *gen_pool_dma_zalloc(struct gen_pool *pool, size_t size, dma_addr_t *dma);
+extern void *gen_pool_dma_zalloc_algo(struct gen_pool *pool, size_t size,
+		dma_addr_t *dma, genpool_algo_t algo, void *data);
+extern void *gen_pool_dma_zalloc_align(struct gen_pool *pool, size_t size,
+		dma_addr_t *dma, int align);
 extern void gen_pool_free_owner(struct gen_pool *pool, unsigned long addr,
 		size_t size, void **owner);
 static inline void gen_pool_free(struct gen_pool *pool, unsigned long addr,