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| author | Hiroshi Doyu <hdoyu@nvidia.com> | 2013-02-06 06:15:25 +0200 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2013-09-14 12:57:07 -0700 |
| commit | 70fd29cc2c4c16ebe7cae803618852e117cb917a (patch) | |
| tree | 434c83c3d69ebba56f4e3eb99870453418284d50 /arch | |
| parent | 837a1bea641e5db489328bbdaeb822ecfa123fc1 (diff) | |
ARM: dma-mapping: Trace IOMMU atomic allocation
Add dev_dbg() to trance IOMMU atomic allocation,
__iommu_{alloc,free}_atomic().
Usage:
echo -n 'func __iommu_alloc_atomic +p' > /sys/kernel/debug/dynamic_debug/control
echo -n 'func __iommu_free_atomic +p' > /sys/kernel/debug/dynamic_debug/control
Change-Id: Ibe322c2d009652eb6b07fd988ff1fff97268e207
Signed-off-by: Hiroshi Doyu <hdoyu@nvidia.com>
Reviewed-on: http://git-master/r/197752
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Juha Tukkinen <jtukkinen@nvidia.com>
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/mm/dma-mapping.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm/mm/dma-mapping.c b/arch/arm/mm/dma-mapping.c index d84f331d3cbb..6e92fa88abb7 100644 --- a/arch/arm/mm/dma-mapping.c +++ b/arch/arm/mm/dma-mapping.c @@ -1396,6 +1396,7 @@ static void *__iommu_alloc_atomic(struct device *dev, size_t size, if (*handle == DMA_ERROR_CODE) goto err_mapping; + dev_dbg(dev, "%s() %08x(%x)\n", __func__, *handle, size); return addr; err_mapping: @@ -1408,6 +1409,7 @@ static void __iommu_free_atomic(struct device *dev, void *cpu_addr, { __iommu_remove_mapping(dev, handle, size); __free_from_pool(cpu_addr, size); + dev_dbg(dev, "%s() %08x(%x)\n", __func__, handle, size); } static void *arm_iommu_alloc_attrs(struct device *dev, size_t size, |