diff options
| author | Wei Li <liwei391@huawei.com> | 2021-06-29 22:14:20 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-07-14 16:53:36 +0200 |
| commit | e0aef648f5bd2367e6460c057eda55e4981c6d0c (patch) | |
| tree | 49683f8ada37688815122cbc9490dc2703c59660 /arch/mips/include/asm | |
| parent | 97704efb93b52c4b2b66a533bc0487e96378f7b1 (diff) | |
MIPS: Fix PKMAP with 32-bit MIPS huge page support
[ Upstream commit cf02ce742f09188272bcc8b0e62d789eb671fc4c ]
When 32-bit MIPS huge page support is enabled, we halve the number of
pointers a PTE page holds, making its last half go to waste.
Correspondingly, we should halve the number of kmap entries, as we just
initialized only a single pte table for that in pagetable_init().
Fixes: 35476311e529 ("MIPS: Add partial 32-bit huge page support")
Signed-off-by: Wei Li <liwei391@huawei.com>
Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'arch/mips/include/asm')
| -rw-r--r-- | arch/mips/include/asm/highmem.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/mips/include/asm/highmem.h b/arch/mips/include/asm/highmem.h index 9d84aafc33d0..9a6bf4f011b5 100644 --- a/arch/mips/include/asm/highmem.h +++ b/arch/mips/include/asm/highmem.h @@ -36,7 +36,7 @@ extern pte_t *pkmap_page_table; * easily, subsequent pte tables have to be allocated in one physical * chunk of RAM. */ -#ifdef CONFIG_PHYS_ADDR_T_64BIT +#if defined(CONFIG_PHYS_ADDR_T_64BIT) || defined(CONFIG_MIPS_HUGE_TLB_SUPPORT) #define LAST_PKMAP 512 #else #define LAST_PKMAP 1024 |