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| author | Suzuki K Poulose <suzuki.poulose@arm.com> | 2018-03-26 15:12:29 +0100 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2018-03-26 18:01:36 +0100 |
| commit | 5e91107b06811f0ca147cebbedce53626c9c4443 (patch) | |
| tree | a9114422e63ff1bb9c390853941b7d8ed4772e8d /arch/arm64 | |
| parent | c0cda3b8ee6b4b6851b2fd8b6db91fd7b0e2524a (diff) | |
| download | linux-5e91107b06811f0ca147cebbedce53626c9c4443.tar.gz linux-5e91107b06811f0ca147cebbedce53626c9c4443.tar.bz2 linux-5e91107b06811f0ca147cebbedce53626c9c4443.zip | |
arm64: capabilities: Move errata work around check on boot CPU
We trigger CPU errata work around check on the boot CPU from
smp_prepare_boot_cpu() to make sure that we run the checks only
after the CPU feature infrastructure is initialised. While this
is correct, we can also do this from init_cpu_features() which
initilises the infrastructure, and is called only on the
Boot CPU. This helps to consolidate the CPU capability handling
to cpufeature.c. No functional changes.
Cc: Will Deacon <will.deacon@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Dave Martin <dave.martin@arm.com>
Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/kernel/cpufeature.c | 6 | ||||
| -rw-r--r-- | arch/arm64/kernel/smp.c | 6 |
2 files changed, 6 insertions, 6 deletions
diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c index d66f64b81557..b4cbcfe6e00c 100644 --- a/arch/arm64/kernel/cpufeature.c +++ b/arch/arm64/kernel/cpufeature.c @@ -551,6 +551,12 @@ void __init init_cpu_features(struct cpuinfo_arm64 *info) init_cpu_ftr_reg(SYS_ZCR_EL1, info->reg_zcr); sve_init_vq_map(); } + + /* + * Run the errata work around checks on the boot CPU, once we have + * initialised the cpu feature infrastructure. + */ + update_cpu_errata_workarounds(); } static void update_cpu_ftr_reg(struct arm64_ftr_reg *reg, u64 new) diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c index 3b8ad7be9c33..5cef11450183 100644 --- a/arch/arm64/kernel/smp.c +++ b/arch/arm64/kernel/smp.c @@ -448,12 +448,6 @@ void __init smp_prepare_boot_cpu(void) jump_label_init(); cpuinfo_store_boot_cpu(); save_boot_cpu_run_el(); - /* - * Run the errata work around checks on the boot CPU, once we have - * initialised the cpu feature infrastructure from - * cpuinfo_store_boot_cpu() above. - */ - update_cpu_errata_workarounds(); } static u64 __init of_get_cpu_mpidr(struct device_node *dn) |