diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/include/asm/pgtable.h | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/arch/arm/include/asm/pgtable.h b/arch/arm/include/asm/pgtable.h index 80d6fc4dbe4a..9bcd262a9008 100644 --- a/arch/arm/include/asm/pgtable.h +++ b/arch/arm/include/asm/pgtable.h | |||
| @@ -61,6 +61,15 @@ extern void __pgd_error(const char *file, int line, pgd_t); | |||
| 61 | #define FIRST_USER_ADDRESS PAGE_SIZE | 61 | #define FIRST_USER_ADDRESS PAGE_SIZE |
| 62 | 62 | ||
| 63 | /* | 63 | /* |
| 64 | * Use TASK_SIZE as the ceiling argument for free_pgtables() and | ||
| 65 | * free_pgd_range() to avoid freeing the modules pmd when LPAE is enabled (pmd | ||
| 66 | * page shared between user and kernel). | ||
| 67 | */ | ||
| 68 | #ifdef CONFIG_ARM_LPAE | ||
| 69 | #define USER_PGTABLES_CEILING TASK_SIZE | ||
| 70 | #endif | ||
| 71 | |||
| 72 | /* | ||
| 64 | * The pgprot_* and protection_map entries will be fixed up in runtime | 73 | * The pgprot_* and protection_map entries will be fixed up in runtime |
| 65 | * to include the cachable and bufferable bits based on memory policy, | 74 | * to include the cachable and bufferable bits based on memory policy, |
| 66 | * as well as any architecture dependent bits like global/ASID and SMP | 75 | * as well as any architecture dependent bits like global/ASID and SMP |