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authorWei Li <liwei391@huawei.com>2021-06-29 22:14:20 +0800
committerThomas Bogendoerfer <tsbogend@alpha.franken.de>2021-06-30 14:41:32 +0200
commitcf02ce742f09188272bcc8b0e62d789eb671fc4c (patch)
tree87a94ccc023f08824e4154b7e870dfa984c8cb28 /arch/mips
parent34c522a07ccbfb0e6476713b41a09f9f51a06c9f (diff)
downloadlinux-cf02ce742f09188272bcc8b0e62d789eb671fc4c.tar.bz2
MIPS: Fix PKMAP with 32-bit MIPS huge page support
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>
Diffstat (limited to 'arch/mips')
-rw-r--r--arch/mips/include/asm/highmem.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/mips/include/asm/highmem.h b/arch/mips/include/asm/highmem.h
index 292d0425717f..92a380210017 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