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powerpc: Add TLB management code for 64-bit Book3E

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This adds the TLB miss handler assembly, the low level TLB flush routines
along with the necessary hook for dealing with our virtual page tables
or indirect TLB entries that need to be flushes when PTE pages are freed.

There is currently no support for hugetlbfs

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This commit is contained in:
Benjamin Herrenschmidt
2009-07-23 23:15:47 +00:00
parent a8f7758c1c
commit 25d21ad6e7
10 changed files with 1055 additions and 5 deletions
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14
arch/powerpc/mm/mmu_decl.h
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@@ -41,7 +41,11 @@ static inline void _tlbil_pid(unsigned int pid)
#else /* CONFIG_40x || CONFIG_8xx */
extern void _tlbil_all(void);
extern void _tlbil_pid(unsigned int pid);
#ifdef CONFIG_PPC_BOOK3E
extern void _tlbil_pid_noind(unsigned int pid);
#else
#define _tlbil_pid_noind(pid) _tlbil_pid(pid)
#endif
#endif /* !(CONFIG_40x || CONFIG_8xx) */
/*
@@ -53,7 +57,10 @@ static inline void _tlbil_va(unsigned long address, unsigned int pid,
{
asm volatile ("tlbie %0; sync" : : "r" (address) : "memory");
}
#else /* CONFIG_8xx */
#elif defined(CONFIG_PPC_BOOK3E)
extern void _tlbil_va(unsigned long address, unsigned int pid,
unsigned int tsize, unsigned int ind);
#else
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)
@@ -67,11 +74,16 @@ static inline void _tlbil_va(unsigned long address, unsigned int pid,
* implementation. When that becomes the case, this will be
* an extern.
*/
#ifdef CONFIG_PPC_BOOK3E
extern void _tlbivax_bcast(unsigned long address, unsigned int pid,
unsigned int tsize, unsigned int ind);
#else
static inline void _tlbivax_bcast(unsigned long address, unsigned int pid,
unsigned int tsize, unsigned int ind)
{
BUG();
}
#endif
#else /* CONFIG_PPC_MMU_NOHASH */