diff options
| author | Catalin Marinas <catalin.marinas@arm.com> | 2011-11-22 17:30:29 +0000 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2011-12-08 10:30:39 +0000 |
| commit | 1b6ba46b7efa31055eb993a6f2c6bbcb8b35b001 (patch) | |
| tree | b04e3b1fd23ba81a643f64cba113551d127111a0 /arch/arm/mm/proc-macros.S | |
| parent | da02877987e6e173ebba137d4e1e155e1f1151cd (diff) | |
ARM: LPAE: MMU setup for the 3-level page table format
This patch adds the MMU initialisation for the LPAE page table format.
The swapper_pg_dir size with LPAE is 5 rather than 4 pages. A new
proc-v7-3level.S file contains the TTB initialisation, context switch
and PTE setting code with the LPAE. The TTBRx split is based on the
PAGE_OFFSET with TTBR1 used for the kernel mappings. The 36-bit mappings
(supersections) and a few other memory types in mmu.c are conditionally
compiled.
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm/mm/proc-macros.S')
| -rw-r--r-- | arch/arm/mm/proc-macros.S | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/arch/arm/mm/proc-macros.S b/arch/arm/mm/proc-macros.S index 307a4def8d3..2d8ff3ad86d 100644 --- a/arch/arm/mm/proc-macros.S +++ b/arch/arm/mm/proc-macros.S @@ -91,8 +91,9 @@ #if L_PTE_SHARED != PTE_EXT_SHARED #error PTE shared bit mismatch #endif -#if (L_PTE_XN+L_PTE_USER+L_PTE_RDONLY+L_PTE_DIRTY+L_PTE_YOUNG+\ - L_PTE_FILE+L_PTE_PRESENT) > L_PTE_SHARED +#if !defined (CONFIG_ARM_LPAE) && \ + (L_PTE_XN+L_PTE_USER+L_PTE_RDONLY+L_PTE_DIRTY+L_PTE_YOUNG+\ + L_PTE_FILE+L_PTE_PRESENT) > L_PTE_SHARED #error Invalid Linux PTE bit settings #endif #endif /* CONFIG_MMU */ |