diff options
| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2018-11-29 14:07:19 +0000 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-12-04 19:45:01 +1100 |
| commit | 3fb69c6a1a13afc5f64ef84e96d69a4be199d485 (patch) | |
| tree | c2fad3fb4be61d5120dd7e7da6af2827ec77242e /arch/powerpc/include | |
| parent | 22569b881d373153ce0a214f89920851918dd77d (diff) | |
| download | linux-3fb69c6a1a13afc5f64ef84e96d69a4be199d485.tar.bz2 | |
powerpc/8xx: Enable 512k hugepage support with HW assistance
For using 512k pages with hardware assistance, the PTEs have to be spread
every 128 bytes in the L2 table.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include')
| -rw-r--r-- | arch/powerpc/include/asm/hugetlb.h | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/arch/powerpc/include/asm/hugetlb.h b/arch/powerpc/include/asm/hugetlb.h index dfb8bf236586..62a0ca02ca7d 100644 --- a/arch/powerpc/include/asm/hugetlb.h +++ b/arch/powerpc/include/asm/hugetlb.h @@ -74,7 +74,9 @@ static inline pte_t *hugepte_offset(hugepd_t hpd, unsigned long addr, unsigned long idx = 0; pte_t *dir = hugepd_page(hpd); -#ifndef CONFIG_PPC_FSL_BOOK3E +#ifdef CONFIG_PPC_8xx + idx = (addr & ((1UL << pdshift) - 1)) >> PAGE_SHIFT; +#elif !defined(CONFIG_PPC_FSL_BOOK3E) idx = (addr & ((1UL << pdshift) - 1)) >> hugepd_shift(hpd); #endif |