On Tue, 29 Oct 2019 at 07:04, Bjorn Andersson bjorn.andersson@linaro.org wrote:
With the introduction of 'cce360b54ce6 ("arm64: capabilities: Filter the entries based on a given mask")' the Qualcomm erratas are no long applied.
The result of not applying errata 1003 is that MSM8996 runs into various RCU stalls and fails to boot most of the times.
Give both 1003 and 1009 a "type" to ensure they are not filtered out in update_cpu_capabilities().
Fixes: cce360b54ce6 ("arm64: capabilities: Filter the entries based on a given mask") Cc: stable@vger.kernel.org Reported-by: Mark Brown broonie@kernel.org Suggested-by: Will Deacon will@kernel.org Signed-off-by: Bjorn Andersson bjorn.andersson@linaro.org
FYI the offending commit is now queued up for 4.14 as well.
arch/arm64/kernel/cpu_errata.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c index df9465120e2f..cdd8df033536 100644 --- a/arch/arm64/kernel/cpu_errata.c +++ b/arch/arm64/kernel/cpu_errata.c @@ -780,6 +780,7 @@ const struct arm64_cpu_capabilities arm64_errata[] = { { .desc = "Qualcomm Technologies Falkor/Kryo erratum 1003", .capability = ARM64_WORKAROUND_QCOM_FALKOR_E1003,
.type = ARM64_CPUCAP_SCOPE_LOCAL_CPU, .matches = cpucap_multi_entry_cap_matches, .match_list = qcom_erratum_1003_list, },@@ -788,6 +789,7 @@ const struct arm64_cpu_capabilities arm64_errata[] = { { .desc = "Qualcomm erratum 1009, ARM erratum 1286807", .capability = ARM64_WORKAROUND_REPEAT_TLBI,
.type = ARM64_CPUCAP_SCOPE_LOCAL_CPU, ERRATA_MIDR_RANGE_LIST(arm64_repeat_tlbi_cpus), },#endif
2.23.0
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