WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-devel

[Xen-devel] [PATCH 03 of 14] swiotlb: move some definitions to header

To: Ingo Molnar <mingo@xxxxxxx>
Subject: [Xen-devel] [PATCH 03 of 14] swiotlb: move some definitions to header
From: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Date: Tue, 16 Dec 2008 12:17:27 -0800
Cc: Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, Ian Campbell <ian.campbell@xxxxxxxxxx>, the arch/x86 maintainers <x86@xxxxxxxxxx>, linux-kernel@xxxxxxxxxxxxxxx, FUJITA Tomonori <fujita.tomonori@xxxxxxxxxxxxx>
Delivery-date: Tue, 16 Dec 2008 12:21:02 -0800
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <patchbomb.1229458644@xxxxxxxxxxxxxxxxx>
List-help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
List-post: <mailto:xen-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
From: Ian Campbell <ian.campbell@xxxxxxxxxx>

Signed-off-by: Ian Campbell <ian.campbell@xxxxxxxxxx>
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>
---
 include/linux/swiotlb.h |   14 ++++++++++++++
 lib/swiotlb.c           |   14 +-------------
 2 files changed, 15 insertions(+), 13 deletions(-)

diff --git a/include/linux/swiotlb.h b/include/linux/swiotlb.h
--- a/include/linux/swiotlb.h
+++ b/include/linux/swiotlb.h
@@ -7,6 +7,20 @@
 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
--- 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))
 
 /*



_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel

<Prev in Thread] Current Thread [Next in Thread>