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authorLinus Torvalds <torvalds@linux-foundation.org>2012-05-24 12:57:47 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2012-05-24 12:57:47 -0700
commit2f78d8e249973f1eeb88315e6444e616c60177ae (patch)
tree2f6fae6c781622301c40378ea404096d8f231a33 /drivers/firewire/core.h
parentf2fde3a65e88330017b816faf2ef75f141d21375 (diff)
parent26c72e22c94fbc28604c94e3a96fdae9c6fd0a42 (diff)
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Merge tag 'firewire-updates' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394
Pull IEEE 1394 (FireWire) subsystem updates from Stefan Richter: - Fix mismatch between DMA mapping direction (was wrong) and DMA synchronization direction (was correct) of isochronous reception buffers of userspace drivers if vma-mapped for R/W access. For example, libdc1394 was affected. - more consistent retry stategy in device discovery/ rediscovery, and improved failure diagnostics - various small cleanups, e.g. use SCSI layer's DMA mapping API in firewire-sbp2 * tag 'firewire-updates' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394: firewire: sbp2: document the absence of alignment requirements firewire: sbp2: remove superfluous blk_queue_max_segment_size() call firewire: sbp2: use scsi_dma_(un)map firewire: sbp2: give correct DMA device to scsi framework firewire: core: fw_device_refresh(): clean up error handling firewire: core: log config rom reading errors firewire: core: log error in case of failed bus manager lock firewire: move rcode_string() to core firewire: core: improve reread_config_rom() interface firewire: core: wait for inaccessible devices after bus reset firewire: ohci: omit spinlock IRQ flags where possible firewire: ohci: correct signedness of a local variable firewire: core: fix DMA mapping direction firewire: use module_pci_driver
Diffstat (limited to 'drivers/firewire/core.h')
-rw-r--r--drivers/firewire/core.h7
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/firewire/core.h b/drivers/firewire/core.h
index b5a2f61..515a42c 100644
--- a/drivers/firewire/core.h
+++ b/drivers/firewire/core.h
@@ -3,6 +3,7 @@
#include <linux/compiler.h>
#include <linux/device.h>
+#include <linux/dma-mapping.h>
#include <linux/fs.h>
#include <linux/list.h>
#include <linux/idr.h>
@@ -154,7 +155,11 @@ void fw_node_event(struct fw_card *card, struct fw_node *node, int event);
/* -iso */
-int fw_iso_buffer_map(struct fw_iso_buffer *buffer, struct vm_area_struct *vma);
+int fw_iso_buffer_alloc(struct fw_iso_buffer *buffer, int page_count);
+int fw_iso_buffer_map_dma(struct fw_iso_buffer *buffer, struct fw_card *card,
+ enum dma_data_direction direction);
+int fw_iso_buffer_map_vma(struct fw_iso_buffer *buffer,
+ struct vm_area_struct *vma);
/* -topology */