(adding Geoff and Takahiro)
On 16 July 2015 at 19:58, Mark Salter <msal...@redhat.com> wrote:
> Commit 68234df4ea79 ("arm64: kill flush_cache_all()") removed
> soft_reset() from the kernel. This was the only caller of
> setup_mm_for_reboot(), so remove that also.
>
I am wondering if setup_mm_for_reboot() is being used in the kexec
patches. Perhaps we should check that before removing it.
Geoff?
> Signed-off-by: Mark Salter <msal...@redhat.com>
> ---
> arch/arm64/include/asm/mmu.h | 1 -
> arch/arm64/mm/mmu.c | 11 -----------
> 2 files changed, 12 deletions(-)
>
> diff --git a/arch/arm64/include/asm/mmu.h b/arch/arm64/include/asm/mmu.h
> index 79fcfb0..0302087 100644
> --- a/arch/arm64/include/asm/mmu.h
> +++ b/arch/arm64/include/asm/mmu.h
> @@ -28,7 +28,6 @@ typedef struct {
> #define ASID(mm) ((mm)->context.id & 0xffff)
>
> extern void paging_init(void);
> -extern void setup_mm_for_reboot(void);
> extern void __iomem *early_io_map(phys_addr_t phys, unsigned long virt);
> extern void init_mem_pgprot(void);
> extern void create_pgd_mapping(struct mm_struct *mm, phys_addr_t phys,
> diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c
> index a4ede4e..63012fe 100644
> --- a/arch/arm64/mm/mmu.c
> +++ b/arch/arm64/mm/mmu.c
> @@ -461,17 +461,6 @@ void __init paging_init(void)
> }
>
> /*
> - * Enable the identity mapping to allow the MMU disabling.
> - */
> -void setup_mm_for_reboot(void)
> -{
> - cpu_set_reserved_ttbr0();
> - flush_tlb_all();
> - cpu_set_idmap_tcr_t0sz();
> - cpu_switch_mm(idmap_pg_dir, &init_mm);
> -}
> -
> -/*
> * Check whether a kernel address is valid (derived from arch/x86/).
> */
> int kern_addr_valid(unsigned long addr)
> --
> 2.4.3
>
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