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authorJohn Crispin <john@openwrt.org>2008-01-24 21:26:37 +0000
committerJohn Crispin <john@openwrt.org>2008-01-24 21:26:37 +0000
commit57670563b5edb0a9d1b3bb99ab04518fbe396a42 (patch)
tree2efe9076bdaffffdf8928d2c906bb1ef272b943d /target/linux
parentdc584fc1af70e0813189ac04548ffa2e4bbf574e (diff)
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added dmabounce debug code to ixp4xx
SVN-Revision: 10240
Diffstat (limited to 'target/linux')
-rw-r--r--target/linux/ixp4xx/config-default1
-rw-r--r--target/linux/ixp4xx/patches-2.6.23/400-dmabounce.patch31
2 files changed, 32 insertions, 0 deletions
diff --git a/target/linux/ixp4xx/config-default b/target/linux/ixp4xx/config-default
index 1b725f646b..9673dc75bc 100644
--- a/target/linux/ixp4xx/config-default
+++ b/target/linux/ixp4xx/config-default
@@ -85,6 +85,7 @@ CONFIG_DLCI_COUNT=24
CONFIG_DLCI_MAX=8
# CONFIG_DM9000 is not set
CONFIG_DMABOUNCE=y
+CONFIG_DMABOUNCE_DEBUG=y
CONFIG_DNOTIFY=y
# CONFIG_DSCC4 is not set
# CONFIG_E100 is not set
diff --git a/target/linux/ixp4xx/patches-2.6.23/400-dmabounce.patch b/target/linux/ixp4xx/patches-2.6.23/400-dmabounce.patch
new file mode 100644
index 0000000000..481b443a59
--- /dev/null
+++ b/target/linux/ixp4xx/patches-2.6.23/400-dmabounce.patch
@@ -0,0 +1,31 @@
+Index: linux-2.6.23.14/arch/arm/common/dmabounce.c
+===================================================================
+--- linux-2.6.23.14.orig/arch/arm/common/dmabounce.c 2008-01-24 22:03:28.475500801 +0100
++++ linux-2.6.23.14/arch/arm/common/dmabounce.c 2008-01-24 22:17:36.415822168 +0100
+@@ -116,6 +116,10 @@
+ } else if (size <= device_info->large.size) {
+ pool = &device_info->large;
+ } else {
++#ifdef CONFIG_DMABOUNCE_DEBUG
++ printk(KERN_INFO "A dma bounce buffer outside the pool size was requested. Requested size was 0x%08X\nThe calling code was :\n", size);
++ dump_stack();
++#endif
+ pool = NULL;
+ }
+
+Index: linux-2.6.23.14/arch/arm/mach-ixp4xx/Kconfig
+===================================================================
+--- linux-2.6.23.14.orig/arch/arm/mach-ixp4xx/Kconfig 2008-01-24 22:10:29.331484012 +0100
++++ linux-2.6.23.14/arch/arm/mach-ixp4xx/Kconfig 2008-01-24 22:11:42.891675973 +0100
+@@ -220,6 +220,11 @@
+ default y
+ depends on PCI
+
++config DMABOUNCE_DEBUG
++ bool "Enable DMABounce debuging"
++ default n
++ depends DMABOUNCE
++
+ config IXP4XX_INDIRECT_PCI
+ bool "Use indirect PCI memory access"
+ depends on PCI