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| author | Junhao He <hejunhao3@huawei.com> | 2023-01-14 17:16:32 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2023-03-10 09:33:30 +0100 |
| commit | b0081745f6e66b1ce0446137b743af053689c397 (patch) | |
| tree | 28c9d8b680dd1b18b4cba7e39141cb00bde977c9 /drivers/virt | |
| parent | 5029464da93094dd01d58ef757396232ed43253c (diff) | |
| download | linux-b0081745f6e66b1ce0446137b743af053689c397.tar.gz | |
coresight: etm4x: Fix accesses to TRCSEQRSTEVR and TRCSEQSTR
[ Upstream commit 589d928248b72f8377d45904a14bcf686aa8bbeb ]
The TRCSEQRSTEVR and TRCSEQSTR registers are not implemented if the
TRCIDR5.NUMSEQSTATE == 0. Skip accessing the registers in such cases.
Fixes: 2e1cdfe184b5 ("coresight-etm4x: Adding CoreSight ETM4x driver")
Signed-off-by: Junhao He <hejunhao3@huawei.com>
Reviewed-by: Mike Leach <mike.leach@linaro.org>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Link: https://lore.kernel.org/r/20230114091632.60095-1-hejunhao3@huawei.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'drivers/virt')
0 files changed, 0 insertions, 0 deletions