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| author | Ingo Molnar <mingo@kernel.org> | 2015-09-18 10:24:01 +0300 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-09-18 10:24:01 +0300 |
| commit | 02386c356af0ce5bbee11ed9b23c312ca60298f0 (patch) | |
| tree | 24d6816d783975cbc237af3a53c34f44fda03de2 /arch/arm64/Kconfig | |
| parent | d71b0ad8d30922ccdd0705318237e6890b4ec1b6 (diff) | |
| parent | f73e22ab450140830005581c2c7ec389791a1b8d (diff) | |
| download | linux-02386c356af0ce5bbee11ed9b23c312ca60298f0.tar.xz | |
Merge branch 'perf/urgent' into perf/core, to pick up fixes before applying new changes
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'arch/arm64/Kconfig')
| -rw-r--r-- | arch/arm64/Kconfig | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 7d95663c0160..07d1811aa03f 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -32,6 +32,7 @@ config ARM64 select GENERIC_CLOCKEVENTS_BROADCAST select GENERIC_CPU_AUTOPROBE select GENERIC_EARLY_IOREMAP + select GENERIC_IDLE_POLL_SETUP select GENERIC_IRQ_PROBE select GENERIC_IRQ_SHOW select GENERIC_IRQ_SHOW_LEVEL @@ -331,6 +332,22 @@ config ARM64_ERRATUM_845719 If unsure, say Y. +config ARM64_ERRATUM_843419 + bool "Cortex-A53: 843419: A load or store might access an incorrect address" + depends on MODULES + default y + help + This option builds kernel modules using the large memory model in + order to avoid the use of the ADRP instruction, which can cause + a subsequent memory access to use an incorrect address on Cortex-A53 + parts up to r0p4. + + Note that the kernel itself must be linked with a version of ld + which fixes potentially affected ADRP instructions through the + use of veneers. + + If unsure, say Y. + endmenu |