lk/linux-kernel-test
1
0
Fork 0
Code Issues Pull Requests Releases Wiki Activity

powerpc: Get USE_STRICT_MM_TYPECHECKS working again

Browse Source 
The typesafe version of the powerpc pagetable handling (with
USE_STRICT_MM_TYPECHECKS defined) has bitrotted again.  This patch
makes a bunch of small fixes to get it back to building status.

It's still not enabled by default as gcc still generates worse
code with it for some reason.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
David Gibson
2008-10-12 17:54:24 +00:00
committed by Benjamin Herrenschmidt
parent cd301c7ba4
commit f5ea64dcba
6 changed files with 24 additions and 22 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
arch/powerpc/include/asm/pgtable-ppc64.h
View File

@@ -117,10 +117,10 @@
#define PAGE_AGP __pgprot(_PAGE_BASE | _PAGE_WRENABLE | _PAGE_NO_CACHE)
#define HAVE_PAGE_AGP
#define PAGE_PROT_BITS __pgprot(_PAGE_GUARDED | _PAGE_COHERENT | \
_PAGE_NO_CACHE | _PAGE_WRITETHRU | \
_PAGE_4K_PFN | _PAGE_RW | _PAGE_USER | \
_PAGE_ACCESSED | _PAGE_DIRTY | _PAGE_EXEC)
#define PAGE_PROT_BITS (_PAGE_GUARDED | _PAGE_COHERENT | \
_PAGE_NO_CACHE | _PAGE_WRITETHRU | \
_PAGE_4K_PFN | _PAGE_RW | _PAGE_USER | \
_PAGE_ACCESSED | _PAGE_DIRTY | _PAGE_EXEC)
/* PTEIDX nibble */
#define _PTEIDX_SECONDARY 0x8
#define _PTEIDX_GROUP_IX 0x7
@@ -264,9 +264,9 @@ static inline pte_t pte_mkhuge(pte_t pte) {
return pte; }
static inline pte_t pte_mkspecial(pte_t pte) {
pte_val(pte) |= _PAGE_SPECIAL; return pte; }
static inline unsigned long pte_pgprot(pte_t pte)
static inline pgprot_t pte_pgprot(pte_t pte)
{
return __pgprot(pte_val(pte)) & PAGE_PROT_BITS;
return __pgprot(pte_val(pte) & PAGE_PROT_BITS);
}
/* Atomic PTE updates */