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| author | Clemens Ladisch <clemens@ladisch.de> | 2011-03-15 09:55:50 +0300 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2011-03-15 10:42:28 +0300 |
| commit | 5b2599a07eaee53d713fb68f5343eba88fa249c0 (patch) | |
| tree | 43cd8d7bebd8b1d9f86ca8f2db69d985da82e94f /sound/firewire/iso-resources.h | |
| parent | be454366324b31922a2460c63c65d5e3cebe9641 (diff) | |
| download | linux-5b2599a07eaee53d713fb68f5343eba88fa249c0.tar.xz | |
ALSA: firewire-lib: allocate DMA buffer separately
For correct cache coherency on some architectures, DMA buffers must be
allocated in a different cache line than data that is concurrently used
by the CPU.
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/firewire/iso-resources.h')
| -rw-r--r-- | sound/firewire/iso-resources.h | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/sound/firewire/iso-resources.h b/sound/firewire/iso-resources.h index 9feb9f8d4745..3f0730e4d841 100644 --- a/sound/firewire/iso-resources.h +++ b/sound/firewire/iso-resources.h @@ -24,11 +24,11 @@ struct fw_iso_resources { unsigned int bandwidth_overhead; int generation; /* in which allocation is valid */ bool allocated; - __be32 buffer[2]; + __be32 *buffer; }; -void fw_iso_resources_init(struct fw_iso_resources *r, - struct fw_unit *unit); +int fw_iso_resources_init(struct fw_iso_resources *r, + struct fw_unit *unit); void fw_iso_resources_destroy(struct fw_iso_resources *r); int fw_iso_resources_allocate(struct fw_iso_resources *r, |