diff options
author | Paul Mundt <lethal@linux-sh.org> | 2009-04-09 10:36:54 -0700 |
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committer | Paul Mundt <lethal@linux-sh.org> | 2009-04-09 10:36:54 -0700 |
commit | f802d969b6a89d3f9b67ef879179824d53420ebe (patch) | |
tree | 73748811278c85817b59240d63e610c8a9565132 /arch/sh/mm | |
parent | b35346fd25f3c8c0b6afeb778f8c4f41c5703c84 (diff) |
sh: Add support for DMA API debugging.
This wires up support for the generic DMA API debugging.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/mm')
-rw-r--r-- | arch/sh/mm/consistent.c | 19 |
1 files changed, 13 insertions, 6 deletions
diff --git a/arch/sh/mm/consistent.c b/arch/sh/mm/consistent.c index edcd5fbf965..8c9ee855328 100644 --- a/arch/sh/mm/consistent.c +++ b/arch/sh/mm/consistent.c @@ -12,6 +12,7 @@ #include <linux/mm.h> #include <linux/platform_device.h> #include <linux/dma-mapping.h> +#include <linux/dma-debug.h> #include <asm/cacheflush.h> #include <asm/addrspace.h> #include <asm/io.h> @@ -45,6 +46,9 @@ void *dma_alloc_coherent(struct device *dev, size_t size, split_page(pfn_to_page(virt_to_phys(ret) >> PAGE_SHIFT), order); *dma_handle = virt_to_phys(ret); + + debug_dma_alloc_coherent(dev, size, *dma_handle, ret_nocache); + return ret_nocache; } EXPORT_SYMBOL(dma_alloc_coherent); @@ -56,12 +60,15 @@ void dma_free_coherent(struct device *dev, size_t size, unsigned long pfn = dma_handle >> PAGE_SHIFT; int k; - if (!dma_release_from_coherent(dev, order, vaddr)) { - WARN_ON(irqs_disabled()); /* for portability */ - for (k = 0; k < (1 << order); k++) - __free_pages(pfn_to_page(pfn + k), 0); - iounmap(vaddr); - } + WARN_ON(irqs_disabled()); /* for portability */ + + if (dma_release_from_coherent(dev, order, vaddr)) + return; + + debug_dma_free_coherent(dev, size, vaddr, dma_handle); + for (k = 0; k < (1 << order); k++) + __free_pages(pfn_to_page(pfn + k), 0); + iounmap(vaddr); } EXPORT_SYMBOL(dma_free_coherent); |