Add an stub atomic_scrub and enable EDAC for arm64. Signed-off-by: Loc Ho <lho@xxxxxxx> --- arch/arm64/Kconfig | 1 + arch/arm64/include/asm/edac.h | 31 +++++++++++++++++++++++++++++++ 2 files changed, 32 insertions(+), 0 deletions(-) create mode 100644 arch/arm64/include/asm/edac.h diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 4269dba..577078f 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -22,6 +22,7 @@ config ARM64 select BUILDTIME_EXTABLE_SORT select CLONE_BACKWARDS select COMMON_CLK + select EDAC_SUPPORT select CPU_PM if (SUSPEND || CPU_IDLE) select DCACHE_WORD_ACCESS select GENERIC_ALLOCATOR diff --git a/arch/arm64/include/asm/edac.h b/arch/arm64/include/asm/edac.h new file mode 100644 index 0000000..1cedba6 --- /dev/null +++ b/arch/arm64/include/asm/edac.h @@ -0,0 +1,31 @@ +/* + * ARM64 EDAC Header File + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along with + * this program. If not, see <http://www.gnu.org/licenses/>. + */ +#ifndef ASM_EDAC_H +#define ASM_EDAC_H + +/* + * ECC atomic, DMA, SMP and interrupt safe scrub function. + * Implements the per arch atomic_scrub() that EDAC use for software + * ECC scrubbing. It reads memory and then writes back the original + * value, allowing the hardware to detect and correct memory errors. + */ +static inline void atomic_scrub(void *va, u32 size) +{ + /* Stub function for now until an ARM64 HW has a way to test it. */ +} + +#endif + -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
