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authorFUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp>2009-08-04 21:08:28 +0200
committerBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-08-28 06:24:11 +0200
commit80d3e8abb73dad3983fef2597b52cab8fbcd876b (patch)
tree39d73950289a3de9cbdb2846da3d340374034ce4 /arch/powerpc/kernel/dma.c
parentpowerpc: Handle SWIOTLB mapping error properly (diff)
downloadlinux-80d3e8abb73dad3983fef2597b52cab8fbcd876b.tar.xz
linux-80d3e8abb73dad3983fef2597b52cab8fbcd876b.zip
powerpc: Add CONFIG_DMA_API_DEBUG support
Signed-off-by: FUJITA Tomonori <fujita.tomonori@lab.ntt.co.jp> Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Diffstat (limited to 'arch/powerpc/kernel/dma.c')
-rw-r--r--arch/powerpc/kernel/dma.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/dma.c b/arch/powerpc/kernel/dma.c
index c61f70e145ad..21b784d7e7d0 100644
--- a/arch/powerpc/kernel/dma.c
+++ b/arch/powerpc/kernel/dma.c
@@ -7,6 +7,7 @@
#include <linux/device.h>
#include <linux/dma-mapping.h>
+#include <linux/dma-debug.h>
#include <linux/lmb.h>
#include <asm/bug.h>
#include <asm/abs_addr.h>
@@ -156,3 +157,13 @@ struct dma_map_ops dma_direct_ops = {
#endif
};
EXPORT_SYMBOL(dma_direct_ops);
+
+#define PREALLOC_DMA_DEBUG_ENTRIES (1 << 16)
+
+static int __init dma_init(void)
+{
+ dma_debug_init(PREALLOC_DMA_DEBUG_ENTRIES);
+
+ return 0;
+}
+fs_initcall(dma_init);