Some architectures require a call to flush_kernel_dcache_page for processor spoofed DMA operations.
This attached patch is against current scsi-misc-2.6.
ObligatoryDisclaimer: Please accept my condolences regarding Outlook's handling
of patch attachments (inline gets damaged, use attachment).
Signed-off-by: Mark Salyzyn <[EMAIL PROTECTED]>
aachba.c | 5 ++++-
1 file changed, 4 insertions(+), 1 deletion(-)
diff -ru a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
--- a/drivers/scsi/aacraid/aachba.c 2008-01-08 15:01:21.503932722 -0500
+++ b/drivers/scsi/aacraid/aachba.c 2008-01-08 15:02:35.849634368 -0500
@@ -31,9 +31,9 @@
#include <linux/slab.h>
#include <linux/completion.h>
#include <linux/blkdev.h>
-#include <linux/dma-mapping.h>
#include <asm/semaphore.h>
#include <asm/uaccess.h>
+#include <linux/highmem.h> /* For flush_kernel_dcache_page */
#include <scsi/scsi.h>
#include <scsi/scsi_cmnd.h>
@@ -366,6 +366,9 @@
if (buf && transfer_len > 0)
memcpy(buf + offset, data, transfer_len);
+#ifdef ARCH_HAS_FLUSH_ANON_PAGE
+ flush_kernel_dcache_page(kmap_atomic_to_page(buf - sg->offset));
+#endif
kunmap_atomic(buf - sg->offset, KM_IRQ0);
}
Sincerely -- Mark Salyzyn
aacraid_flush_dcache3.patch
Description: aacraid_flush_dcache3.patch
