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powerpc/mm: Change setbat() to take a pgprot_t rather than flags 

The callers of setbat() are actually passing a pgprot_t for the flags
parameter. This doesn't matter unless STRICT_MM_TYPECHECKS is enabled.
So we can turn that on without breaking the build, change setbat() to
take a pgprot_t and have it convert it to an unsigned long internally.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
hifive-unleashed-5.1
Michael Ellerman 2015-03-25 20:11:55 +11:00
parent 911083350e
commit 5dd4e4f6fe
2 changed files with 3 additions and 2 deletions
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2
arch/powerpc/mm/mmu_decl.h
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@ -96,7 +96,7 @@ extern void _tlbia(void);
extern void mapin_ram(void);
extern int map_page(unsigned long va, phys_addr_t pa, int flags);
extern void setbat(int index, unsigned long virt, phys_addr_t phys,
unsigned int size, int flags);
unsigned int size, pgprot_t prot);
extern int __map_without_bats;
extern int __allow_ioremap_reserved;

3
arch/powerpc/mm/ppc_mmu_32.c
View File

@ -113,11 +113,12 @@ unsigned long __init mmu_mapin_ram(unsigned long top)
* of 2 between 128k and 256M.
*/
void __init setbat(int index, unsigned long virt, phys_addr_t phys,
unsigned int size, int flags)
unsigned int size, pgprot_t prot)
{
unsigned int bl;
int wimgxpp;
struct ppc_bat *bat = BATS[index];
unsigned long flags = pgprot_val(prot);
if ((flags & _PAGE_NO_CACHE) ||
(cpu_has_feature(CPU_FTR_NEED_COHERENT) == 0))