diff options
Diffstat (limited to 'arch/powerpc/mm/slb_low.S')
| -rw-r--r-- | arch/powerpc/mm/slb_low.S | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/arch/powerpc/mm/slb_low.S b/arch/powerpc/mm/slb_low.S index 657f6b37e9df..bc44dc4b5c67 100644 --- a/arch/powerpc/mm/slb_low.S +++ b/arch/powerpc/mm/slb_low.S @@ -47,8 +47,7 @@ _GLOBAL(slb_allocate_realmode) * it to VSID 0, which is reserved as a bad VSID - one which * will never have any pages in it. */ - /* Check if hitting the linear mapping of the vmalloc/ioremap - * kernel space + /* Check if hitting the linear mapping or some other kernel space */ bne cr7,1f @@ -62,7 +61,18 @@ BEGIN_FTR_SECTION END_FTR_SECTION_IFCLR(CPU_FTR_1T_SEGMENT) b slb_finish_load_1T -1: /* vmalloc/ioremap mapping encoding bits, the "li" instructions below +1: +#ifdef CONFIG_SPARSEMEM_VMEMMAP + /* Check virtual memmap region. To be patches at kernel boot */ + cmpldi cr0,r9,0xf + bne 1f +_GLOBAL(slb_miss_kernel_load_vmemmap) + li r11,0 + b 6f +1: +#endif /* CONFIG_SPARSEMEM_VMEMMAP */ + + /* vmalloc/ioremap mapping encoding bits, the "li" instructions below * will be patched by the kernel at boot */ BEGIN_FTR_SECTION |