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| author |   Arnd Bergmann <arnd@arndb.de> | 2009-06-26 08:14:36 +0200 |
|---|---|---|
| committer |   Jesper Nilsson <jesper.nilsson@axis.com> | 2009-08-31 18:38:11 +0200 |
| commit | d8fb91e8344ff11381fc47d43e0b234065be4bd0 (patch) | |
| tree | 36b72b3b6fff5f53d53cc14587dbc96f73d29ae5 /arch/cris/include/asm/pgtable.h | |
| parent | Merge branch 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6 (diff) | |
| download | wireguard-linux-d8fb91e8344ff11381fc47d43e0b234065be4bd0.tar.xz wireguard-linux-d8fb91e8344ff11381fc47d43e0b234065be4bd0.zip | |
CRIS: add pgprot_noncached
On CRIS, the high address bit controls caching, which means that
we can add a pgprot_noncached() macro that sets this bit in the
address.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Jesper Nilsson <jesper.nilsson@axis.com>
Diffstat (limited to 'arch/cris/include/asm/pgtable.h')
| -rw-r--r-- | arch/cris/include/asm/pgtable.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/cris/include/asm/pgtable.h b/arch/cris/include/asm/pgtable.h index 50aa974aa834..1fcce00f01f4 100644 --- a/arch/cris/include/asm/pgtable.h +++ b/arch/cris/include/asm/pgtable.h @@ -197,6 +197,8 @@ static inline pte_t __mk_pte(void * page, pgprot_t pgprot) static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) { pte_val(pte) = (pte_val(pte) & _PAGE_CHG_MASK) | pgprot_val(newprot); return pte; } +#define pgprot_noncached(prot) __pgprot((pgprot_val(prot) | _PAGE_NO_CACHE)) + /* pte_val refers to a page in the 0x4xxxxxxx physical DRAM interval * __pte_page(pte_val) refers to the "virtual" DRAM interval |