[PATCH 2/3] ARM: exynos: move resume code to .text section
Ard Biesheuvel
ard.biesheuvel at linaro.org
Tue Mar 24 09:34:58 PDT 2015
On 24 March 2015 at 17:33, Nicolas Pitre <nicolas.pitre at linaro.org> wrote:
> On Tue, 24 Mar 2015, Ard Biesheuvel wrote:
>
>> This code calls cpu_resume() using a straight branch (b), so
>> now that we have moved cpu_resume() back to .text, this should
>> be moved there as well. Note that all the .data references in
>> the code are already open coded PC relative references.
>>
>> Signed-off-by: Ard Biesheuvel <ard.biesheuvel at linaro.org>
>
> You forgot to adjust the code in exynos_cpu_resume_ns referencing
> cp15_save_power and cp15_save_diag.
>
Oops, missed that ...
>
>> ---
>> arch/arm/mach-exynos/sleep.S | 9 +--------
>> 1 file changed, 1 insertion(+), 8 deletions(-)
>>
>> diff --git a/arch/arm/mach-exynos/sleep.S b/arch/arm/mach-exynos/sleep.S
>> index d3583773785e..98fba486fbe5 100644
>> --- a/arch/arm/mach-exynos/sleep.S
>> +++ b/arch/arm/mach-exynos/sleep.S
>> @@ -23,14 +23,7 @@
>> #define CPU_MASK 0xff0ffff0
>> #define CPU_CORTEX_A9 0x410fc090
>>
>> - /*
>> - * The following code is located into the .data section. This is to
>> - * allow l2x0_regs_phys to be accessed with a relative load while we
>> - * can't rely on any MMU translation. We could have put l2x0_regs_phys
>> - * in the .text section as well, but some setups might insist on it to
>> - * be truly read-only. (Reference from: arch/arm/kernel/sleep.S)
>> - */
>> - .data
>> + .text
>> .align
>>
>> /*
>> --
>> 1.8.3.2
>>
>>
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