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powerpc/mm: Make low level TLB flush ops on BookE take additional args

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We need to pass down whether the page is direct or indirect and we'll
need to pass the page size to _tlbil_va and _tlbivax_bcast

We also add a new low level _tlbil_pid_noind() which does a TLB flush
by PID but avoids flushing indirect entries if possible

This implements those new prototypes but defines them with inlines
or macros so that no additional arguments are actually passed on current
processors.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Benjamin Herrenschmidt
2009-07-23 23:15:24 +00:00
parent 44c58ccc8d
commit d4e167da4c
4 changed files with 56 additions and 19 deletions
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16
arch/powerpc/mm/mmu_decl.h
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@@ -36,21 +36,30 @@ static inline void _tlbil_pid(unsigned int pid)
{
asm volatile ("sync; tlbia; isync" : : : "memory");
}
#define _tlbil_pid_noind(pid) _tlbil_pid(pid)
#else /* CONFIG_40x || CONFIG_8xx */
extern void _tlbil_all(void);
extern void _tlbil_pid(unsigned int pid);
#define _tlbil_pid_noind(pid) _tlbil_pid(pid)
#endif /* !(CONFIG_40x || CONFIG_8xx) */
/*
* On 8xx, we directly inline tlbie, on others, it's extern
*/
#ifdef CONFIG_8xx
static inline void _tlbil_va(unsigned long address, unsigned int pid)
static inline void _tlbil_va(unsigned long address, unsigned int pid,
unsigned int tsize, unsigned int ind)
{
asm volatile ("tlbie %0; sync" : : "r" (address) : "memory");
}
#else /* CONFIG_8xx */
extern void _tlbil_va(unsigned long address, unsigned int pid);
extern void __tlbil_va(unsigned long address, unsigned int pid);
static inline void _tlbil_va(unsigned long address, unsigned int pid,
unsigned int tsize, unsigned int ind)
{
__tlbil_va(address, pid);
}
#endif /* CONIFG_8xx */
/*
@@ -58,7 +67,8 @@ extern void _tlbil_va(unsigned long address, unsigned int pid);
* implementation. When that becomes the case, this will be
* an extern.
*/
static inline void _tlbivax_bcast(unsigned long address, unsigned int pid)
static inline void _tlbivax_bcast(unsigned long address, unsigned int pid,
unsigned int tsize, unsigned int ind)
{
BUG();
}