From 57670563b5edb0a9d1b3bb99ab04518fbe396a42 Mon Sep 17 00:00:00 2001 From: John Crispin Date: Thu, 24 Jan 2008 21:26:37 +0000 Subject: [PATCH] added dmabounce debug code to ixp4xx SVN-Revision: 10240 --- target/linux/ixp4xx/config-default | 1 + .../ixp4xx/patches-2.6.23/400-dmabounce.patch | 31 +++++++++++++++++++ 2 files changed, 32 insertions(+) create mode 100644 target/linux/ixp4xx/patches-2.6.23/400-dmabounce.patch 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 -- 2.25.1