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openwrt-xburst/target/linux/ixp4xx/patches-2.6.26/400-dmabounce.patch
juhosg 0f80ce2088 [kernel] refresh 2.6.26 patches
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@13135 3c298f89-4303-0410-b956-a3cf2f4a3e73
2008-11-06 20:55:33 +00:00

28 lines
757 B
Diff

--- a/arch/arm/common/dmabounce.c
+++ b/arch/arm/common/dmabounce.c
@@ -117,6 +117,10 @@ alloc_safe_buffer(struct dmabounce_devic
} 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;
}
--- a/arch/arm/mach-ixp4xx/Kconfig
+++ b/arch/arm/mach-ixp4xx/Kconfig
@@ -244,6 +244,11 @@ config DMABOUNCE
default y
depends on PCI
+config DMABOUNCE_DEBUG
+ bool "Enable DMABounce debuging"
+ default n
+ depends on DMABOUNCE
+
config IXP4XX_INDIRECT_PCI
bool "Use indirect PCI memory access"
depends on PCI