At the time being, with 16k pages __set_pte_at() writes table entries in reverse order:
294: 91 49 00 0c stw r10,12(r9) 298: 91 49 00 08 stw r10,8(r9) 29c: 91 49 00 04 stw r10,4(r9) 2a0: 91 49 00 00 stw r10,0(r9) Allthough there should be no impact at all as it stays in a single cacheline, reverse the writing in a more natural order. 288: 91 49 00 0c stw r10,0(r9) 28c: 91 49 00 08 stw r10,4(r9) 290: 91 49 00 04 stw r10,8(r9) 294: 91 49 00 00 stw r10,12(r9) Signed-off-by: Christophe Leroy <christophe.le...@csgroup.eu> --- arch/powerpc/include/asm/nohash/pgtable.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/powerpc/include/asm/nohash/pgtable.h b/arch/powerpc/include/asm/nohash/pgtable.h index 4fd73c7412d0..d2e39823af09 100644 --- a/arch/powerpc/include/asm/nohash/pgtable.h +++ b/arch/powerpc/include/asm/nohash/pgtable.h @@ -183,7 +183,7 @@ static inline void __set_pte_at(struct mm_struct *mm, unsigned long addr, * cases, and 32-bit non-hash with 32-bit PTEs. */ #if defined(CONFIG_PPC_8xx) && defined(CONFIG_PPC_16K_PAGES) - ptep->pte = ptep->pte1 = ptep->pte2 = ptep->pte3 = pte_val(pte); + ptep->pte3 = ptep->pte2 = ptep->pte1 = ptep->pte = pte_val(pte); #else *ptep = pte; #endif -- 2.37.1