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authorIngo Molnar <mingo@elte.hu>2008-10-12 11:32:17 +0200
committerIngo Molnar <mingo@elte.hu>2008-10-12 11:32:17 +0200
commit206855c321adee56db3946ca09a5887cddb9d598 (patch)
tree13a2729d4d0e37170552bd9ad3c6bba71ba0c55c /arch/mips/include/asm/scatterlist.h
parente8d3f455de4f42d4bab2f6f1aeb2cf3bd18eb508 (diff)
parentcb58ffc3889f0545628f138f849e759a331b8ddc (diff)
Merge branch 'x86/urgent' into core/signal
Conflicts: arch/x86/kernel/signal_64.c
Diffstat (limited to 'arch/mips/include/asm/scatterlist.h')
-rw-r--r--arch/mips/include/asm/scatterlist.h28
1 files changed, 28 insertions, 0 deletions
diff --git a/arch/mips/include/asm/scatterlist.h b/arch/mips/include/asm/scatterlist.h
new file mode 100644
index 00000000000..83d69fe17c9
--- /dev/null
+++ b/arch/mips/include/asm/scatterlist.h
@@ -0,0 +1,28 @@
+#ifndef __ASM_SCATTERLIST_H
+#define __ASM_SCATTERLIST_H
+
+#include <asm/types.h>
+
+struct scatterlist {
+#ifdef CONFIG_DEBUG_SG
+ unsigned long sg_magic;
+#endif
+ unsigned long page_link;
+ unsigned int offset;
+ dma_addr_t dma_address;
+ unsigned int length;
+};
+
+/*
+ * These macros should be used after a pci_map_sg call has been done
+ * to get bus addresses of each of the SG entries and their lengths.
+ * You should only work with the number of sg entries pci_map_sg
+ * returns, or alternatively stop on the first sg_dma_len(sg) which
+ * is 0.
+ */
+#define sg_dma_address(sg) ((sg)->dma_address)
+#define sg_dma_len(sg) ((sg)->length)
+
+#define ISA_DMA_THRESHOLD (0x00ffffffUL)
+
+#endif /* __ASM_SCATTERLIST_H */