Hi David.
> diff --git a/arch/sparc/kernel/vmlinux.lds.S b/arch/sparc/kernel/vmlinux.lds.S
> index 94a9548..0e16056 100644
> --- a/arch/sparc/kernel/vmlinux.lds.S
> +++ b/arch/sparc/kernel/vmlinux.lds.S
> @@ -107,6 +107,16 @@ SECTIONS
> *(.sun4v_2insn_patch)
> __sun4v_2insn_patch_end = .;
> }
> + .swapper_tsb_phys_patch : {
> + __swapper_tsb_phys_patch = .;
> + *(.swapper_tsb_phys_patch)
> + __swapper_tsb_phys_patch_end = .;
> + }
> + .swapper_4m_tsb_phys_patch : {
> + __swapper_4m_tsb_phys_patch = .;
> + *(.swapper_4m_tsb_phys_patch)
> + __swapper_4m_tsb_phys_patch_end = .;
> + }
> .popc_3insn_patch : {
> __popc_3insn_patch = .;
> *(.popc_3insn_patch)
> diff --git a/arch/sparc/mm/init_64.c b/arch/sparc/mm/init_64.c
> index 3fd8e18..adfac23 100644
> --- a/arch/sparc/mm/init_64.c
> +++ b/arch/sparc/mm/init_64.c
> @@ -1597,6 +1597,42 @@ static void __init tsb_phys_patch(void)
> static struct hv_tsb_descr ktsb_descr[NUM_KTSB_DESCR];
> extern struct tsb swapper_tsb[KERNEL_TSB_NENTRIES];
>
> +static void patch_one_ktsb_phys(unsigned int *start, unsigned int *end, unsigned long pa)
> +{
> + pa >>= KTSB_PHYS_SHIFT;
> +
> + while (start < end) {
> + unsigned int *ia = (unsigned int *)(unsigned long)*start;
> +
> + ia[0] = (ia[0] & ~0x3fffff) | (pa >> 10);
> + __asm__ __volatile__("flush %0" : : "r" (ia));
> +
> + ia[1] = (ia[1] & ~0x3ff) | (pa & 0x3ff);
> + __asm__ __volatile__("flush %0" : : "r" (ia + 1));
> +
> + start++;
> + }
> +}
> +
> +static void ktsb_phys_patch(void)
> +{
> + extern unsigned int __swapper_tsb_phys_patch;
> + extern unsigned int __swapper_tsb_phys_patch_end;
> + extern unsigned int __swapper_4m_tsb_phys_patch;
> + extern unsigned int __swapper_4m_tsb_phys_patch_end;
Having all the extern definitions from vmlinux.lds located in
arch/sparc/include/asm/sections.h would IMO be more obvious.
I did not try to review the actual patch, I only stumbled on this bit.
Sam
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