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| author | Wei Li <liwei391@huawei.com> | 2021-06-29 22:14:20 +0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-07-14 16:56:32 +0200 |
| commit | d8c1504cf1a0cd71b0619aaf3176c6f81ca3af60 (patch) | |
| tree | 09800dba992df4896a746c66338a0783883a7722 | |
| parent | a23ba98e91ffda5a1dc84bd904fe698002f96474 (diff) | |
| download | kernel_replicant_linux-d8c1504cf1a0cd71b0619aaf3176c6f81ca3af60.tar.gz kernel_replicant_linux-d8c1504cf1a0cd71b0619aaf3176c6f81ca3af60.tar.bz2 kernel_replicant_linux-d8c1504cf1a0cd71b0619aaf3176c6f81ca3af60.zip | |
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>
| -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 f1f788b57166..9f021cf51aa7 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 |