> -----Original Message-----
> * Required for kernel 4.20
>
> With kernel commit 4ffe713b7587 ("powerpc/mm: Increase the max addressable
> memory to 2PB"), MAX_PHYSMEM_BITS is bumped up to 51 for SPARSEMEM_VMEMMAP
> and SPARSEMEM_EXTREME case. Make the appropriate update here.
>
> Signed-off-by: Hari Bathini <[email protected]>
Applied to the devel branch.
Thanks,
Kazu
> ---
> arch/ppc64.c | 5 +++++
> makedumpfile.h | 1 +
> 2 files changed, 6 insertions(+)
>
> diff --git a/arch/ppc64.c b/arch/ppc64.c
> index 947a125..5b8231e 100644
> --- a/arch/ppc64.c
> +++ b/arch/ppc64.c
> @@ -486,6 +486,11 @@ set_ppc64_max_physmem_bits(void)
> || (array_len == (NR_MEM_SECTIONS() / _SECTIONS_PER_ROOT())))
> return TRUE;
>
> + info->max_physmem_bits = _MAX_PHYSMEM_BITS_4_20;
> + if ((array_len == (NR_MEM_SECTIONS() / _SECTIONS_PER_ROOT_EXTREME()))
> + || (array_len == (NR_MEM_SECTIONS() / _SECTIONS_PER_ROOT())))
> + return TRUE;
> +
> return FALSE;
> }
>
> diff --git a/makedumpfile.h b/makedumpfile.h
> index 73813ed..d49f1f1 100644
> --- a/makedumpfile.h
> +++ b/makedumpfile.h
> @@ -672,6 +672,7 @@ unsigned long get_kvbase_arm64(void);
> #define _MAX_PHYSMEM_BITS_ORIG (44)
> #define _MAX_PHYSMEM_BITS_3_7 (46)
> #define _MAX_PHYSMEM_BITS_4_19 (47)
> +#define _MAX_PHYSMEM_BITS_4_20 (51)
> #define REGION_SHIFT (60UL)
> #define VMEMMAP_REGION_ID (0xfUL)
>
>
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