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author | Jonathan Zhou <jonathan.zhouwen@huawei.com> | 2021-02-01 11:13:50 -0700 |
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committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-02-04 17:00:34 +0100 |
commit | e5d51fbe9bf5f13e72e3c742705928c74d8ba8bf (patch) | |
tree | 3347589c18bbf7bd5657080a145af4bfeb56028b /drivers/dma/pxa_dma.c | |
parent | 4b6929f50d79cd674e4315a5dad5284b98534942 (diff) | |
download | linux-e5d51fbe9bf5f13e72e3c742705928c74d8ba8bf.tar.bz2 |
coresight: Add support for v8.4 SelfHosted tracing
v8.4 tracing extensions added support for trace filtering controlled
by TRFCR_ELx. This must be programmed to allow tracing at EL1/EL2 and
EL0. The timestamp used is the virtual time. Also enable CONTEXIDR_EL2
tracing if we are running the kernel at EL2.
Link: https://lore.kernel.org/r/20210110224850.1880240-29-suzuki.poulose@arm.com
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Mike Leach <mike.leach@linaro.org>
Cc: Will Deacon <will@kernel.org>
Reviewed-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Signed-off-by: Jonathan Zhou <jonathan.zhouwen@huawei.com>
[ Move the trace filtering setup etm_init_arch_data() and clean ups]
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
Link: https://lore.kernel.org/r/20210201181351.1475223-31-mathieu.poirier@linaro.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/dma/pxa_dma.c')
0 files changed, 0 insertions, 0 deletions