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| author | Rafał Miłecki <zajec5@gmail.com> | 2014-07-17 23:26:32 +0200 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 2014-07-30 23:27:02 +0200 |
| commit | d377732c8c9aac14ccb900b65678558b0fb8f0f3 (patch) | |
| tree | 206fcaf65a47440f47b68cbe20a0182310422846 /arch/mips/include/asm/pgtable-32.h | |
| parent | MIPS: BCM47XX: Devices database update for 3.17 (diff) | |
| download | linux-d377732c8c9aac14ccb900b65678558b0fb8f0f3.tar.xz linux-d377732c8c9aac14ccb900b65678558b0fb8f0f3.zip | |
Revert "MIPS: Delete unused function add_temporary_entry."
This reverts commit d7a887a73dec6c387b02a966a71aac767bbd9ce6.
Function add_temporary_entry is needed by bcm47xx to support highmem. We
need to add a temporary entry to check for amount of RAM.
The only change made in this revert was replacing (ENTER|EXIT)_CRITICAL.
Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Cc: linux-mips@linux-mips.org
Cc: Hauke Mehrtens <hauke@hauke-m.de>
Patchwork: https://patchwork.linux-mips.org/patch/7395/
Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips/include/asm/pgtable-32.h')
| -rw-r--r-- | arch/mips/include/asm/pgtable-32.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/mips/include/asm/pgtable-32.h b/arch/mips/include/asm/pgtable-32.h index b4204c179b97..2b1133209bb2 100644 --- a/arch/mips/include/asm/pgtable-32.h +++ b/arch/mips/include/asm/pgtable-32.h @@ -19,6 +19,16 @@ #include <asm-generic/pgtable-nopmd.h> /* + * - add_temporary_entry() add a temporary TLB entry. We use TLB entries + * starting at the top and working down. This is for populating the + * TLB before trap_init() puts the TLB miss handler in place. It + * should be used only for entries matching the actual page tables, + * to prevent inconsistencies. + */ +extern int add_temporary_entry(unsigned long entrylo0, unsigned long entrylo1, + unsigned long entryhi, unsigned long pagemask); + +/* * Basically we have the same two-level (which is the logical three level * Linux page table layout folded) page tables as the i386. Some day * when we have proper page coloring support we can have a 1% quicker |