[PATCH v2] ARMv7: Use the Inner Shareable I-cache on MP

Venkatraman S svenkatr at ti.com
Wed May 19 08:35:47 EDT 2010


Santosh Shilimkar <santosh.shilimkar at ti.com> wrote:
> This patch fixes the flush_cache_all for ARMv7 SMP. It was
> missing from commit b8349b569aae661dea9d59d7d2ee587ccea3336c
>
> Signed-off-by: Santosh Shilimkar <santosh.shilimkar at ti.com>
> Cc: Catalin Marinas <catalin.marinas at arm.com>
> ---
> Updated version after removing the not necessary second hunk
>
> arch/arm/mm/cache-v7.S |    4 ++++
>  1 files changed, 4 insertions(+), 0 deletions(-)
>
> diff --git a/arch/arm/mm/cache-v7.S b/arch/arm/mm/cache-v7.S
> index 06a90dc..5009635 100644
> --- a/arch/arm/mm/cache-v7.S
> +++ b/arch/arm/mm/cache-v7.S
> @@ -91,7 +91,11 @@ ENTRY(v7_flush_kern_cache_all)
>  THUMB(        stmfd   sp!, {r4-r7, r9-r11, lr}        )
>        bl      v7_flush_dcache_all
>        mov     r0, #0
> +#ifdef CONFIG_SMP
> +       mcr     p15, 0, r0, c7, c1, 0           @ invalidate I-cache inner shareable
> +#elese

s/elese/else

>        mcr     p15, 0, r0, c7, c5, 0           @ I+BTB cache invalidate
> +#endif
>  ARM(  ldmfd   sp!, {r4-r5, r7, r9-r11, lr}    )
>  THUMB(        ldmfd   sp!, {r4-r7, r9-r11, lr}        )
>        mov     pc, lr
> --
> 1.6.0.4
>
> --



More information about the linux-arm-kernel mailing list