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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-24 21:57:47 +0200 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-24 21:57:47 +0200 |
| commit | 2f78d8e249973f1eeb88315e6444e616c60177ae (patch) | |
| tree | 2f6fae6c781622301c40378ea404096d8f231a33 /drivers/firewire/core.h | |
| parent | Merge branch 'drm-core-next' of git://people.freedesktop.org/~airlied/linux (diff) | |
| parent | firewire: sbp2: document the absence of alignment requirements (diff) | |
| download | linux-2f78d8e249973f1eeb88315e6444e616c60177ae.tar.xz linux-2f78d8e249973f1eeb88315e6444e616c60177ae.zip | |
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.h | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/firewire/core.h b/drivers/firewire/core.h index b5a2f6197053..515a42c786d0 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 */ |