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| author | Krzysztof Kozlowski <k.kozlowski@samsung.com> | 2014-09-28 05:36:46 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2014-09-30 16:55:22 +0100 |
| commit | ebc77251a4c50d7c310893915fb07581550c1ba5 (patch) | |
| tree | f06779387680b46854690a509506892c5d08061e | |
| parent | 5ca918e5e3f9df4634077c06585c42bc6a8d699a (diff) | |
| download | linux-ebc77251a4c50d7c310893915fb07581550c1ba5.tar.gz | |
ARM: 8177/1: cacheflush: Fix v7_exit_coherency_flush exynos build breakage on ARMv6
This fixes build breakage of platsmp.c if ARMv6 was chosen for compile
time options (e.g. by building allmodconfig):
$ make allmodconfig
$ make
CC arch/arm/mach-exynos/platsmp.o
/tmp/ccdQM0Eg.s: Assembler messages:
/tmp/ccdQM0Eg.s:432: Error: selected processor does not support ARM mode `isb '
/tmp/ccdQM0Eg.s:437: Error: selected processor does not support ARM mode `isb '
/tmp/ccdQM0Eg.s:438: Error: selected processor does not support ARM mode `dsb '
make[1]: *** [arch/arm/mach-exynos/platsmp.o] Error 1
The error was introduced in commit "ARM: EXYNOS: Move code from
hotplug.c to platsmp.c". Previously code using
v7_exit_coherency_flush() macro was built with '-march=armv7-a' flag but
this flag dissapeared during the movement.
Fix this by annotating the v7_exit_coherency_flush() asm code with
armv7-a architecture.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reported-by: Mark Brown <broonie@kernel.org>
Acked-by: Nicolas Pitre <nico@linaro.org>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
| -rw-r--r-- | arch/arm/include/asm/cacheflush.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/include/asm/cacheflush.h b/arch/arm/include/asm/cacheflush.h index 79ecb4f34ffb34..10e78d00a0bb34 100644 --- a/arch/arm/include/asm/cacheflush.h +++ b/arch/arm/include/asm/cacheflush.h @@ -466,6 +466,7 @@ static inline void __sync_cache_range_r(volatile void *p, size_t size) */ #define v7_exit_coherency_flush(level) \ asm volatile( \ + ".arch armv7-a \n\t" \ "stmfd sp!, {fp, ip} \n\t" \ "mrc p15, 0, r0, c1, c0, 0 @ get SCTLR \n\t" \ "bic r0, r0, #"__stringify(CR_C)" \n\t" \ |