diff options
| author | Suzuki K Poulose <suzuki.poulose@arm.com> | 2016-08-26 00:18:57 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2016-08-31 14:05:42 +0300 |
| commit | 8505feaed9246791e94c30e8bf52fa4c3ef2e7af (patch) | |
| tree | f63d393a3a2fd4f20650342b11d182513904d4e5 /drivers/hwtracing/coresight/coresight-tmc.h | |
| parent | 068c0a542f6edce90f7d8a9b35a849d990001018 (diff) | |
| download | linux-8505feaed9246791e94c30e8bf52fa4c3ef2e7af.tar.xz | |
coresight: tmc: Limit the trace to available data
At present the ETF or ETR gives out the entire device
buffer, even if there is less or even no trace data
available. This patch limits the trace data given out to
the actual trace data collected.
Cc: mathieu.poirier@linaro.org
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/hwtracing/coresight/coresight-tmc.h')
| -rw-r--r-- | drivers/hwtracing/coresight/coresight-tmc.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/hwtracing/coresight/coresight-tmc.h b/drivers/hwtracing/coresight/coresight-tmc.h index 5c5fe2ad2ca7..44b3ae346118 100644 --- a/drivers/hwtracing/coresight/coresight-tmc.h +++ b/drivers/hwtracing/coresight/coresight-tmc.h @@ -98,7 +98,8 @@ enum tmc_mem_intf_width { * @buf: area of memory where trace data get sent. * @paddr: DMA start location in RAM. * @vaddr: virtual representation of @paddr. - * @size: @buf size. + * @size: trace buffer size. + * @len: size of the available trace. * @mode: how this TMC is being used. * @config_type: TMC variant, must be of type @tmc_config_type. * @memwidth: width of the memory interface databus, in bytes. @@ -115,6 +116,7 @@ struct tmc_drvdata { dma_addr_t paddr; void __iomem *vaddr; u32 size; + u32 len; local_t mode; enum tmc_config_type config_type; enum tmc_mem_intf_width memwidth; |