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authorIan Campbell <ian.campbell@citrix.com>2008-12-16 12:17:27 -0800
committerIngo Molnar <mingo@elte.hu>2008-12-16 21:31:40 +0100
commit0016fdee927f7aa0f428494bcf11ae60c7470a02 (patch)
treeca1080f691efe9c6f76965d38fface872fb856ac
parent8c5df16bec8a60bb8589fc232b9e26cac0ed4b2c (diff)
downloadlinux-0016fdee927f7aa0f428494bcf11ae60c7470a02.tar.bz2
swiotlb: move some definitions to header
Impact: cleanup Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com> Signed-off-by: Ingo Molnar <mingo@elte.hu>
-rw-r--r--include/linux/swiotlb.h14
-rw-r--r--lib/swiotlb.c14
2 files changed, 15 insertions, 13 deletions
diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h
index b8c5fc766a56..58b996a642f9 100644
--- a/include/linux/swiotlb.h
+++ b/include/linux/swiotlb.h
@@ -7,6 +7,20 @@ struct device;
struct dma_attrs;
struct scatterlist;
+/*
+ * Maximum allowable number of contiguous slabs to map,
+ * must be a power of 2. What is the appropriate value ?
+ * The complexity of {map,unmap}_single is linearly dependent on this value.
+ */
+#define IO_TLB_SEGSIZE 128
+
+
+/*
+ * log of the size of each IO TLB slab. The number of slabs is command line
+ * controllable.
+ */
+#define IO_TLB_SHIFT 11
+
extern void
swiotlb_init(void);
diff --git a/lib/swiotlb.c b/lib/swiotlb.c
index abecb2857556..db724ba7ebf6 100644
--- a/lib/swiotlb.c
+++ b/lib/swiotlb.c
@@ -23,6 +23,7 @@
#include <linux/spinlock.h>
#include <linux/swiotlb.h>
#include <linux/string.h>
+#include <linux/swiotlb.h>
#include <linux/types.h>
#include <linux/ctype.h>
@@ -40,19 +41,6 @@
#define SG_ENT_VIRT_ADDRESS(sg) (sg_virt((sg)))
#define SG_ENT_PHYS_ADDRESS(sg) virt_to_bus(SG_ENT_VIRT_ADDRESS(sg))
-/*
- * Maximum allowable number of contiguous slabs to map,
- * must be a power of 2. What is the appropriate value ?
- * The complexity of {map,unmap}_single is linearly dependent on this value.
- */
-#define IO_TLB_SEGSIZE 128
-
-/*
- * log of the size of each IO TLB slab. The number of slabs is command line
- * controllable.
- */
-#define IO_TLB_SHIFT 11
-
#define SLABS_PER_PAGE (1 << (PAGE_SHIFT - IO_TLB_SHIFT))
/*