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Groups > linux.kernel > #1624445
| From | Daniel Lezcano <daniel.lezcano@linaro.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | [PATCH 05/29] arm64: cpu_errata: Add capability to advertise Cortex-A73 erratum 858921 |
| Date | 2017-04-16 22:40 +0200 |
| Message-ID | <twZ7H-8bh-3@gated-at.bofh.it> (permalink) |
| References | <twYY1-87V-3@gated-at.bofh.it> <twYY1-87V-5@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
From: Marc Zyngier <marc.zyngier@arm.com>
In order to work around Cortex-A73 erratum 858921 in a subsequent
patch, add the required capability that advertise the erratum.
As the configuration option it depends on is not present yet,
this has no immediate effect.
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Daniel Lezcano <daniel.lezcano@linaro.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
---
Documentation/arm64/silicon-errata.txt | 1 +
arch/arm64/include/asm/cpucaps.h | 3 ++-
arch/arm64/kernel/cpu_errata.c | 8 ++++++++
3 files changed, 11 insertions(+), 1 deletion(-)
diff --git a/Documentation/arm64/silicon-errata.txt b/Documentation/arm64/silicon-errata.txt
index 2f66683..10f2ddd 100644
--- a/Documentation/arm64/silicon-errata.txt
+++ b/Documentation/arm64/silicon-errata.txt
@@ -54,6 +54,7 @@ stable kernels.
| ARM | Cortex-A57 | #852523 | N/A |
| ARM | Cortex-A57 | #834220 | ARM64_ERRATUM_834220 |
| ARM | Cortex-A72 | #853709 | N/A |
+| ARM | Cortex-A73 | #858921 | ARM64_ERRATUM_858921 |
| ARM | MMU-500 | #841119,#826419 | N/A |
| | | | |
| Cavium | ThunderX ITS | #22375, #24313 | CAVIUM_ERRATUM_22375 |
diff --git a/arch/arm64/include/asm/cpucaps.h b/arch/arm64/include/asm/cpucaps.h
index fb78a5d..b3aab8a 100644
--- a/arch/arm64/include/asm/cpucaps.h
+++ b/arch/arm64/include/asm/cpucaps.h
@@ -37,7 +37,8 @@
#define ARM64_HAS_NO_FPSIMD 16
#define ARM64_WORKAROUND_REPEAT_TLBI 17
#define ARM64_WORKAROUND_QCOM_FALKOR_E1003 18
+#define ARM64_WORKAROUND_858921 19
-#define ARM64_NCAPS 19
+#define ARM64_NCAPS 20
#endif /* __ASM_CPUCAPS_H */
diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c
index 2be1d1c..2ed2a76 100644
--- a/arch/arm64/kernel/cpu_errata.c
+++ b/arch/arm64/kernel/cpu_errata.c
@@ -158,6 +158,14 @@ const struct arm64_cpu_capabilities arm64_errata[] = {
MIDR_CPU_VAR_REV(0, 0)),
},
#endif
+#ifdef CONFIG_ARM64_ERRATUM_858921
+ {
+ /* Cortex-A73 all versions */
+ .desc = "ARM erratum 858921",
+ .capability = ARM64_WORKAROUND_858921,
+ MIDR_ALL_VERSIONS(MIDR_CORTEX_A73),
+ },
+#endif
{
}
};
--
2.7.4
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[GIT PULL] timers changes for 4.12 Daniel Lezcano <daniel.lezcano@linaro.org> - 2017-04-16 22:30 +0200
[PATCH 18/29] arm64: arch_timer: Add HISILICON_ERRATUM_161010101 ACPI matching data Daniel Lezcano <daniel.lezcano@linaro.org> - 2017-04-16 22:30 +0200
[PATCH 22/29] dt-bindings: Clarify compatible property for rockchip timers Daniel Lezcano <daniel.lezcano@linaro.org> - 2017-04-16 22:30 +0200
Re: [PATCH 22/29] dt-bindings: Clarify compatible property for rockchip timers Rob Herring <robh@kernel.org> - 2017-04-20 16:20 +0200
[PATCH 07/29] arm64: arch_timer: Add erratum handler for CPU-specific capability Daniel Lezcano <daniel.lezcano@linaro.org> - 2017-04-16 22:30 +0200
[PATCH 29/29] clocksource/drivers/fttmr010: Refactor to handle clock Daniel Lezcano <daniel.lezcano@linaro.org> - 2017-04-16 22:30 +0200
[PATCH 11/29] arm64: arch_timer: Make workaround methods optional Daniel Lezcano <daniel.lezcano@linaro.org> - 2017-04-16 22:30 +0200
[PATCH 04/29] arm64: cpu_errata: Allow an erratum to be match for all revisions of a core Daniel Lezcano <daniel.lezcano@linaro.org> - 2017-04-16 22:30 +0200
[PATCH 13/29] arm64: arch_timer: Move clocksource_counter and co around Daniel Lezcano <daniel.lezcano@linaro.org> - 2017-04-16 22:30 +0200
[PATCH 27/29] clocksource: Augment bindings for Faraday timer Daniel Lezcano <daniel.lezcano@linaro.org> - 2017-04-16 22:30 +0200
[PATCH 01/29] arm64: Allow checking of a CPU-local erratum Daniel Lezcano <daniel.lezcano@linaro.org> - 2017-04-16 22:30 +0200
[PATCH 23/29] ARM: dts: rockchip: Update compatible property for rk322x timer Daniel Lezcano <daniel.lezcano@linaro.org> - 2017-04-16 22:30 +0200
[PATCH 05/29] arm64: cpu_errata: Add capability to advertise Cortex-A73 erratum 858921 Daniel Lezcano <daniel.lezcano@linaro.org> - 2017-04-16 22:40 +0200
[PATCH 02/29] arm64: Add CNTVCT_EL0 trap handler Daniel Lezcano <daniel.lezcano@linaro.org> - 2017-04-16 22:40 +0200
[PATCH 17/29] arm64: arch_timer: Allow erratum matching with ACPI OEM information Daniel Lezcano <daniel.lezcano@linaro.org> - 2017-04-16 22:40 +0200
[PATCH 08/29] arm64: arch_timer: Move arch_timer_reg_read/write around Daniel Lezcano <daniel.lezcano@linaro.org> - 2017-04-16 22:40 +0200
[PATCH 15/29] arm64: arch_timer: Enable CNTVCT_EL0 trap if workaround is enabled Daniel Lezcano <daniel.lezcano@linaro.org> - 2017-04-16 22:40 +0200
[PATCH 03/29] arm64: Define Cortex-A73 MIDR Daniel Lezcano <daniel.lezcano@linaro.org> - 2017-04-16 22:40 +0200
[PATCH 10/29] arm64: arch_timer: Rework the set_next_event workarounds Daniel Lezcano <daniel.lezcano@linaro.org> - 2017-04-16 22:40 +0200
[PATCH 26/29] ARM: dts: rockchip: disable arm-global-timer for rk3188 Daniel Lezcano <daniel.lezcano@linaro.org> - 2017-04-16 22:40 +0200
[PATCH 25/29] ARM: dts: rockchip: Add timer entries to rk3188 SoC Daniel Lezcano <daniel.lezcano@linaro.org> - 2017-04-16 22:40 +0200
[PATCH 09/29] arm64: arch_timer: Get rid of erratum_workaround_set_sne Daniel Lezcano <daniel.lezcano@linaro.org> - 2017-04-16 22:40 +0200
[PATCH 21/29] clocksource: Add missing line break to error messages Daniel Lezcano <daniel.lezcano@linaro.org> - 2017-04-16 22:40 +0200
Re: [PATCH 21/29] clocksource: Add missing line break to error messages Uwe Kleine-König <u.kleine-koenig@pengutronix.de> - 2017-04-24 09:50 +0200
[PATCH 19/29] clocksource/drivers/orion: Read clock rate once Daniel Lezcano <daniel.lezcano@linaro.org> - 2017-04-16 22:40 +0200
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