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| author | Lu Baolu <baolu.lu@linux.intel.com> | 2020-01-02 01:18:11 +0100 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2020-01-07 14:05:57 +0100 |
| commit | 984d03adc9bdfb1bea408f9cc41a67214ccdffd3 (patch) | |
| tree | 374f643785c0a08c796199447b585bf99ad94c66 /drivers/iommu | |
| parent | iommu/vt-d: Misc macro clean up for SVM (diff) | |
| download | linux-984d03adc9bdfb1bea408f9cc41a67214ccdffd3.tar.xz linux-984d03adc9bdfb1bea408f9cc41a67214ccdffd3.zip | |
iommu/vt-d: trace: Extend map_sg trace event
Current map_sg stores trace message in a coarse manner. This
extends it so that more detailed messages could be traced.
The map_sg trace message looks like:
map_sg: dev=0000:00:17.0 [1/9] dev_addr=0xf8f90000 phys_addr=0x158051000 size=4096
map_sg: dev=0000:00:17.0 [2/9] dev_addr=0xf8f91000 phys_addr=0x15a858000 size=4096
map_sg: dev=0000:00:17.0 [3/9] dev_addr=0xf8f92000 phys_addr=0x15aa13000 size=4096
map_sg: dev=0000:00:17.0 [4/9] dev_addr=0xf8f93000 phys_addr=0x1570f1000 size=8192
map_sg: dev=0000:00:17.0 [5/9] dev_addr=0xf8f95000 phys_addr=0x15c6d0000 size=4096
map_sg: dev=0000:00:17.0 [6/9] dev_addr=0xf8f96000 phys_addr=0x157194000 size=4096
map_sg: dev=0000:00:17.0 [7/9] dev_addr=0xf8f97000 phys_addr=0x169552000 size=4096
map_sg: dev=0000:00:17.0 [8/9] dev_addr=0xf8f98000 phys_addr=0x169dde000 size=4096
map_sg: dev=0000:00:17.0 [9/9] dev_addr=0xf8f99000 phys_addr=0x148351000 size=4096
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/intel-iommu.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index 0d100741cf2e..fb21a7745db2 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -3776,8 +3776,8 @@ static int intel_map_sg(struct device *dev, struct scatterlist *sglist, int nele return 0; } - trace_map_sg(dev, iova_pfn << PAGE_SHIFT, - sg_phys(sglist), size << VTD_PAGE_SHIFT); + for_each_sg(sglist, sg, nelems, i) + trace_map_sg(dev, i + 1, nelems, sg); return nelems; } @@ -3989,6 +3989,9 @@ bounce_map_sg(struct device *dev, struct scatterlist *sglist, int nelems, sg_dma_len(sg) = sg->length; } + for_each_sg(sglist, sg, nelems, i) + trace_bounce_map_sg(dev, i + 1, nelems, sg); + return nelems; out_unmap: |