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authorDave Airlie <airlied@redhat.com>2010-05-18 19:35:51 -0400
committerDave Airlie <airlied@redhat.com>2010-05-18 19:35:51 -0400
commit05ea893c46805b2981ea8ba6df881e3d65edd63b (patch)
treeea381e22d99f49bd2c95238f88491d48b797a17b /include/linux/usb.h
parent26481fb15644b5fd85d4cea020f74a234cdf6803 (diff)
parenta7c542782e92f9487c62a571565637be3d6b0ffd (diff)
Merge remote branch 'anholt/drm-intel-next' into drm-next
* anholt/drm-intel-next: (515 commits) drm/i915: Fix out of tree builds drm/i915: move fence lru to struct drm_i915_fence_reg drm/i915: don't allow tiling changes on pinned buffers v2 drm/i915: Be extra careful about A/D matching for multifunction SDVO drm/i915: Fix DDC bus selection for multifunction SDVO drm/i915: cleanup mode setting before unmapping registers drm/i915: Make fbc control wrapper functions drm/i915: Wait for the GPU whilst shrinking, if truly desperate. drm/i915: Use spatio-temporal dithering on PCH [MTD] Remove zero-length files mtdbdi.c and internal.ho pata_pcmcia / ide-cs: Fix bad hashes for Transcend and kingston IDs libata: Fix several inaccuracies in developer's guide slub: Fix bad boundary check in init_kmem_cache_nodes() raid6: fix recovery performance regression KEYS: call_sbin_request_key() must write lock keyrings before modifying them KEYS: Use RCU dereference wrappers in keyring key type code KEYS: find_keyring_by_name() can gain access to a freed keyring ALSA: hda: Fix 0 dB for Packard Bell models using Conexant CX20549 (Venice) ALSA: hda - Add quirk for Dell Inspiron 19T using a Conexant CX20582 ALSA: take tu->qlock with irqs disabled ...
Diffstat (limited to 'include/linux/usb.h')
-rw-r--r--include/linux/usb.h18
1 files changed, 15 insertions, 3 deletions
diff --git a/include/linux/usb.h b/include/linux/usb.h
index ce1323c4e47c..739f1fd1cc15 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -1085,7 +1085,7 @@ typedef void (*usb_complete_t)(struct urb *);
1085 * Alternatively, drivers may pass the URB_NO_xxx_DMA_MAP transfer flags, 1085 * Alternatively, drivers may pass the URB_NO_xxx_DMA_MAP transfer flags,
1086 * which tell the host controller driver that no such mapping is needed since 1086 * which tell the host controller driver that no such mapping is needed since
1087 * the device driver is DMA-aware. For example, a device driver might 1087 * the device driver is DMA-aware. For example, a device driver might
1088 * allocate a DMA buffer with usb_buffer_alloc() or call usb_buffer_map(). 1088 * allocate a DMA buffer with usb_alloc_coherent() or call usb_buffer_map().
1089 * When these transfer flags are provided, host controller drivers will 1089 * When these transfer flags are provided, host controller drivers will
1090 * attempt to use the dma addresses found in the transfer_dma and/or 1090 * attempt to use the dma addresses found in the transfer_dma and/or
1091 * setup_dma fields rather than determining a dma address themselves. 1091 * setup_dma fields rather than determining a dma address themselves.
@@ -1366,11 +1366,23 @@ static inline int usb_urb_dir_out(struct urb *urb)
1366 return (urb->transfer_flags & URB_DIR_MASK) == URB_DIR_OUT; 1366 return (urb->transfer_flags & URB_DIR_MASK) == URB_DIR_OUT;
1367} 1367}
1368 1368
1369void *usb_buffer_alloc(struct usb_device *dev, size_t size, 1369void *usb_alloc_coherent(struct usb_device *dev, size_t size,
1370 gfp_t mem_flags, dma_addr_t *dma); 1370 gfp_t mem_flags, dma_addr_t *dma);
1371void usb_buffer_free(struct usb_device *dev, size_t size, 1371void usb_free_coherent(struct usb_device *dev, size_t size,
1372 void *addr, dma_addr_t dma); 1372 void *addr, dma_addr_t dma);
1373 1373
1374/* Compatible macros while we switch over */
1375static inline void *usb_buffer_alloc(struct usb_device *dev, size_t size,
1376 gfp_t mem_flags, dma_addr_t *dma)
1377{
1378 return usb_alloc_coherent(dev, size, mem_flags, dma);
1379}
1380static inline void usb_buffer_free(struct usb_device *dev, size_t size,
1381 void *addr, dma_addr_t dma)
1382{
1383 return usb_free_coherent(dev, size, addr, dma);
1384}
1385
1374#if 0 1386#if 0
1375struct urb *usb_buffer_map(struct urb *urb); 1387struct urb *usb_buffer_map(struct urb *urb);
1376void usb_buffer_dmasync(struct urb *urb); 1388void usb_buffer_dmasync(struct urb *urb);