Commit cf02ce74 authored by Wei Li's avatar Wei Li Committed by Thomas Bogendoerfer
Browse files

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: 35476311 ("MIPS: Add partial 32-bit huge page support")
Signed-off-by: default avatarWei Li <liwei391@huawei.com>
Signed-off-by: default avatarThomas Bogendoerfer <tsbogend@alpha.franken.de>
parent 34c522a0

arch/mips/include/asm/highmem.h

+1 −1
Original line number Diff line number Diff line
@@ -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