Merge git://oak/home/sfr/kernels/iseries/work
This commit is contained in:
Paul Mackerras
commit
c3df69cd85
|
|
@ -1,6 +1,7 @@
|
|||
/*
|
||||
* TLB shootdown specifics for PPC
|
||||
* TLB shootdown specifics for powerpc
|
||||
*
|
||||
* Copyright (C) 2002 Anton Blanchard, IBM Corp.
|
||||
* Copyright (C) 2002 Paul Mackerras, IBM Corp.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or
|
||||
|
|
@ -8,29 +9,53 @@
|
|||
* as published by the Free Software Foundation; either version
|
||||
* 2 of the License, or (at your option) any later version.
|
||||
*/
|
||||
#ifndef _PPC_TLB_H
|
||||
#define _PPC_TLB_H
|
||||
#ifndef _ASM_POWERPC_TLB_H
|
||||
#define _ASM_POWERPC_TLB_H
|
||||
|
||||
#include <linux/config.h>
|
||||
#ifndef __powerpc64__
|
||||
#include <asm/pgtable.h>
|
||||
#endif
|
||||
#include <asm/pgalloc.h>
|
||||
#include <asm/tlbflush.h>
|
||||
#ifndef __powerpc64__
|
||||
#include <asm/page.h>
|
||||
#include <asm/mmu.h>
|
||||
|
||||
#ifdef CONFIG_PPC_STD_MMU
|
||||
/* Classic PPC with hash-table based MMU... */
|
||||
#endif
|
||||
|
||||
struct mmu_gather;
|
||||
|
||||
#define tlb_start_vma(tlb, vma) do { } while (0)
|
||||
#define tlb_end_vma(tlb, vma) do { } while (0)
|
||||
|
||||
#if !defined(CONFIG_PPC_STD_MMU)
|
||||
|
||||
#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm)
|
||||
|
||||
#elif defined(__powerpc64__)
|
||||
|
||||
extern void pte_free_finish(void);
|
||||
|
||||
static inline void tlb_flush(struct mmu_gather *tlb)
|
||||
{
|
||||
flush_tlb_pending();
|
||||
pte_free_finish();
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
extern void tlb_flush(struct mmu_gather *tlb);
|
||||
|
||||
#endif
|
||||
|
||||
/* Get the generic bits... */
|
||||
#include <asm-generic/tlb.h>
|
||||
|
||||
/* Nothing needed here in fact... */
|
||||
#define tlb_start_vma(tlb, vma) do { } while (0)
|
||||
#define tlb_end_vma(tlb, vma) do { } while (0)
|
||||
#if !defined(CONFIG_PPC_STD_MMU) || defined(__powerpc64__)
|
||||
|
||||
#define __tlb_remove_tlb_entry(tlb, pte, address) do { } while (0)
|
||||
|
||||
#else
|
||||
extern void flush_hash_entry(struct mm_struct *mm, pte_t *ptep,
|
||||
unsigned long address);
|
||||
|
||||
|
|
@ -41,17 +66,5 @@ static inline void __tlb_remove_tlb_entry(struct mmu_gather *tlb, pte_t *ptep,
|
|||
flush_hash_entry(tlb->mm, ptep, address);
|
||||
}
|
||||
|
||||
#else
|
||||
/* Embedded PPC with software-loaded TLB, very simple... */
|
||||
|
||||
#define tlb_start_vma(tlb, vma) do { } while (0)
|
||||
#define tlb_end_vma(tlb, vma) do { } while (0)
|
||||
#define __tlb_remove_tlb_entry(tlb, pte, address) do { } while (0)
|
||||
#define tlb_flush(tlb) flush_tlb_mm((tlb)->mm)
|
||||
|
||||
/* Get the generic bits... */
|
||||
#include <asm-generic/tlb.h>
|
||||
|
||||
#endif /* CONFIG_PPC_STD_MMU */
|
||||
|
||||
#endif /* __PPC_TLB_H */
|
||||
#endif
|
||||
#endif /* __ASM_POWERPC_TLB_H */
|
||||
|
|
@ -0,0 +1,146 @@
|
|||
#ifndef _ASM_POWERPC_TLBFLUSH_H
|
||||
#define _ASM_POWERPC_TLBFLUSH_H
|
||||
/*
|
||||
* TLB flushing:
|
||||
*
|
||||
* - flush_tlb_mm(mm) flushes the specified mm context TLB's
|
||||
* - flush_tlb_page(vma, vmaddr) flushes one page
|
||||
* - flush_tlb_page_nohash(vma, vmaddr) flushes one page if SW loaded TLB
|
||||
* - flush_tlb_range(vma, start, end) flushes a range of pages
|
||||
* - flush_tlb_kernel_range(start, end) flushes a range of kernel pages
|
||||
* - flush_tlb_pgtables(mm, start, end) flushes a range of page tables
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License
|
||||
* as published by the Free Software Foundation; either version
|
||||
* 2 of the License, or (at your option) any later version.
|
||||
*/
|
||||
#ifdef __KERNEL__
|
||||
|
||||
#include <linux/config.h>
|
||||
|
||||
struct mm_struct;
|
||||
|
||||
#ifdef CONFIG_PPC64
|
||||
|
||||
#include <linux/percpu.h>
|
||||
#include <asm/page.h>
|
||||
|
||||
#define PPC64_TLB_BATCH_NR 192
|
||||
|
||||
struct ppc64_tlb_batch {
|
||||
unsigned long index;
|
||||
struct mm_struct *mm;
|
||||
pte_t pte[PPC64_TLB_BATCH_NR];
|
||||
unsigned long vaddr[PPC64_TLB_BATCH_NR];
|
||||
unsigned int large;
|
||||
};
|
||||
DECLARE_PER_CPU(struct ppc64_tlb_batch, ppc64_tlb_batch);
|
||||
|
||||
extern void __flush_tlb_pending(struct ppc64_tlb_batch *batch);
|
||||
|
||||
static inline void flush_tlb_pending(void)
|
||||
{
|
||||
struct ppc64_tlb_batch *batch = &get_cpu_var(ppc64_tlb_batch);
|
||||
|
||||
if (batch->index)
|
||||
__flush_tlb_pending(batch);
|
||||
put_cpu_var(ppc64_tlb_batch);
|
||||
}
|
||||
|
||||
extern void flush_hash_page(unsigned long va, pte_t pte, int local);
|
||||
void flush_hash_range(unsigned long number, int local);
|
||||
|
||||
#else /* CONFIG_PPC64 */
|
||||
|
||||
#include <linux/mm.h>
|
||||
|
||||
extern void _tlbie(unsigned long address);
|
||||
extern void _tlbia(void);
|
||||
|
||||
/*
|
||||
* TODO: (CONFIG_FSL_BOOKE) determine if flush_tlb_range &
|
||||
* flush_tlb_kernel_range are best implemented as tlbia vs
|
||||
* specific tlbie's
|
||||
*/
|
||||
|
||||
#if (defined(CONFIG_4xx) && !defined(CONFIG_44x)) || defined(CONFIG_8xx)
|
||||
#define flush_tlb_pending() asm volatile ("tlbia; sync" : : : "memory")
|
||||
#elif defined(CONFIG_4xx) || defined(CONFIG_FSL_BOOKE)
|
||||
#define flush_tlb_pending() _tlbia()
|
||||
#endif
|
||||
|
||||
/*
|
||||
* This gets called at the end of handling a page fault, when
|
||||
* the kernel has put a new PTE into the page table for the process.
|
||||
* We use it to ensure coherency between the i-cache and d-cache
|
||||
* for the page which has just been mapped in.
|
||||
* On machines which use an MMU hash table, we use this to put a
|
||||
* corresponding HPTE into the hash table ahead of time, instead of
|
||||
* waiting for the inevitable extra hash-table miss exception.
|
||||
*/
|
||||
extern void update_mmu_cache(struct vm_area_struct *, unsigned long, pte_t);
|
||||
|
||||
#endif /* CONFIG_PPC64 */
|
||||
|
||||
#if defined(CONFIG_PPC64) || defined(CONFIG_4xx) || \
|
||||
defined(CONFIG_FSL_BOOKE) || defined(CONFIG_8xx)
|
||||
|
||||
static inline void flush_tlb_mm(struct mm_struct *mm)
|
||||
{
|
||||
flush_tlb_pending();
|
||||
}
|
||||
|
||||
static inline void flush_tlb_page(struct vm_area_struct *vma,
|
||||
unsigned long vmaddr)
|
||||
{
|
||||
#ifdef CONFIG_PPC64
|
||||
flush_tlb_pending();
|
||||
#else
|
||||
_tlbie(vmaddr);
|
||||
#endif
|
||||
}
|
||||
|
||||
static inline void flush_tlb_page_nohash(struct vm_area_struct *vma,
|
||||
unsigned long vmaddr)
|
||||
{
|
||||
#ifndef CONFIG_PPC64
|
||||
_tlbie(vmaddr);
|
||||
#endif
|
||||
}
|
||||
|
||||
static inline void flush_tlb_range(struct vm_area_struct *vma,
|
||||
unsigned long start, unsigned long end)
|
||||
{
|
||||
flush_tlb_pending();
|
||||
}
|
||||
|
||||
static inline void flush_tlb_kernel_range(unsigned long start,
|
||||
unsigned long end)
|
||||
{
|
||||
flush_tlb_pending();
|
||||
}
|
||||
|
||||
#else /* 6xx, 7xx, 7xxx cpus */
|
||||
|
||||
extern void flush_tlb_mm(struct mm_struct *mm);
|
||||
extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
|
||||
extern void flush_tlb_page_nohash(struct vm_area_struct *vma, unsigned long addr);
|
||||
extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
|
||||
unsigned long end);
|
||||
extern void flush_tlb_kernel_range(unsigned long start, unsigned long end);
|
||||
|
||||
#endif
|
||||
|
||||
/*
|
||||
* This is called in munmap when we have freed up some page-table
|
||||
* pages. We don't need to do anything here, there's nothing special
|
||||
* about our page-table pages. -- paulus
|
||||
*/
|
||||
static inline void flush_tlb_pgtables(struct mm_struct *mm,
|
||||
unsigned long start, unsigned long end)
|
||||
{
|
||||
}
|
||||
|
||||
#endif /*__KERNEL__ */
|
||||
#endif /* _ASM_POWERPC_TLBFLUSH_H */
|
||||
|
|
@ -1,115 +0,0 @@
|
|||
/*
|
||||
* include/asm-ppc/tlbflush.h
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License
|
||||
* as published by the Free Software Foundation; either version
|
||||
* 2 of the License, or (at your option) any later version.
|
||||
*/
|
||||
#ifdef __KERNEL__
|
||||
#ifndef _PPC_TLBFLUSH_H
|
||||
#define _PPC_TLBFLUSH_H
|
||||
|
||||
#include <linux/config.h>
|
||||
#include <linux/mm.h>
|
||||
|
||||
extern void _tlbie(unsigned long address);
|
||||
extern void _tlbia(void);
|
||||
|
||||
#if defined(CONFIG_4xx)
|
||||
|
||||
#ifndef CONFIG_44x
|
||||
#define __tlbia() asm volatile ("sync; tlbia; isync" : : : "memory")
|
||||
#else
|
||||
#define __tlbia _tlbia
|
||||
#endif
|
||||
|
||||
static inline void flush_tlb_mm(struct mm_struct *mm)
|
||||
{ __tlbia(); }
|
||||
static inline void flush_tlb_page(struct vm_area_struct *vma,
|
||||
unsigned long vmaddr)
|
||||
{ _tlbie(vmaddr); }
|
||||
static inline void flush_tlb_page_nohash(struct vm_area_struct *vma,
|
||||
unsigned long vmaddr)
|
||||
{ _tlbie(vmaddr); }
|
||||
static inline void flush_tlb_range(struct vm_area_struct *vma,
|
||||
unsigned long start, unsigned long end)
|
||||
{ __tlbia(); }
|
||||
static inline void flush_tlb_kernel_range(unsigned long start,
|
||||
unsigned long end)
|
||||
{ __tlbia(); }
|
||||
|
||||
#elif defined(CONFIG_FSL_BOOKE)
|
||||
|
||||
/* TODO: determine if flush_tlb_range & flush_tlb_kernel_range
|
||||
* are best implemented as tlbia vs specific tlbie's */
|
||||
|
||||
#define __tlbia() _tlbia()
|
||||
|
||||
static inline void flush_tlb_mm(struct mm_struct *mm)
|
||||
{ __tlbia(); }
|
||||
static inline void flush_tlb_page(struct vm_area_struct *vma,
|
||||
unsigned long vmaddr)
|
||||
{ _tlbie(vmaddr); }
|
||||
static inline void flush_tlb_page_nohash(struct vm_area_struct *vma,
|
||||
unsigned long vmaddr)
|
||||
{ _tlbie(vmaddr); }
|
||||
static inline void flush_tlb_range(struct vm_area_struct *vma,
|
||||
unsigned long start, unsigned long end)
|
||||
{ __tlbia(); }
|
||||
static inline void flush_tlb_kernel_range(unsigned long start,
|
||||
unsigned long end)
|
||||
{ __tlbia(); }
|
||||
|
||||
#elif defined(CONFIG_8xx)
|
||||
#define __tlbia() asm volatile ("tlbia; sync" : : : "memory")
|
||||
|
||||
static inline void flush_tlb_mm(struct mm_struct *mm)
|
||||
{ __tlbia(); }
|
||||
static inline void flush_tlb_page(struct vm_area_struct *vma,
|
||||
unsigned long vmaddr)
|
||||
{ _tlbie(vmaddr); }
|
||||
static inline void flush_tlb_page_nohash(struct vm_area_struct *vma,
|
||||
unsigned long vmaddr)
|
||||
{ _tlbie(vmaddr); }
|
||||
static inline void flush_tlb_range(struct vm_area_struct *vma,
|
||||
unsigned long start, unsigned long end)
|
||||
{ __tlbia(); }
|
||||
static inline void flush_tlb_kernel_range(unsigned long start,
|
||||
unsigned long end)
|
||||
{ __tlbia(); }
|
||||
|
||||
#else /* 6xx, 7xx, 7xxx cpus */
|
||||
struct mm_struct;
|
||||
struct vm_area_struct;
|
||||
extern void flush_tlb_mm(struct mm_struct *mm);
|
||||
extern void flush_tlb_page(struct vm_area_struct *vma, unsigned long vmaddr);
|
||||
extern void flush_tlb_page_nohash(struct vm_area_struct *vma, unsigned long addr);
|
||||
extern void flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
|
||||
unsigned long end);
|
||||
extern void flush_tlb_kernel_range(unsigned long start, unsigned long end);
|
||||
#endif
|
||||
|
||||
/*
|
||||
* This is called in munmap when we have freed up some page-table
|
||||
* pages. We don't need to do anything here, there's nothing special
|
||||
* about our page-table pages. -- paulus
|
||||
*/
|
||||
static inline void flush_tlb_pgtables(struct mm_struct *mm,
|
||||
unsigned long start, unsigned long end)
|
||||
{
|
||||
}
|
||||
|
||||
/*
|
||||
* This gets called at the end of handling a page fault, when
|
||||
* the kernel has put a new PTE into the page table for the process.
|
||||
* We use it to ensure coherency between the i-cache and d-cache
|
||||
* for the page which has just been mapped in.
|
||||
* On machines which use an MMU hash table, we use this to put a
|
||||
* corresponding HPTE into the hash table ahead of time, instead of
|
||||
* waiting for the inevitable extra hash-table miss exception.
|
||||
*/
|
||||
extern void update_mmu_cache(struct vm_area_struct *, unsigned long, pte_t);
|
||||
|
||||
#endif /* _PPC_TLBFLUSH_H */
|
||||
#endif /*__KERNEL__ */
|
||||
|
|
@ -1,39 +0,0 @@
|
|||
/*
|
||||
* TLB shootdown specifics for PPC64
|
||||
*
|
||||
* Copyright (C) 2002 Anton Blanchard, IBM Corp.
|
||||
* Copyright (C) 2002 Paul Mackerras, IBM Corp.
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or
|
||||
* modify it under the terms of the GNU General Public License
|
||||
* as published by the Free Software Foundation; either version
|
||||
* 2 of the License, or (at your option) any later version.
|
||||
*/
|
||||
#ifndef _PPC64_TLB_H
|
||||
#define _PPC64_TLB_H
|
||||
|
||||
#include <asm/tlbflush.h>
|
||||
|
||||
struct mmu_gather;
|
||||
|
||||
extern void pte_free_finish(void);
|
||||
|
||||
static inline void tlb_flush(struct mmu_gather *tlb)
|
||||
{
|
||||
flush_tlb_pending();
|
||||
pte_free_finish();
|
||||
}
|
||||
|
||||
/* Avoid pulling in another include just for this */
|
||||
#define check_pgt_cache() do { } while (0)
|
||||
|
||||
/* Get the generic bits... */
|
||||
#include <asm-generic/tlb.h>
|
||||
|
||||
/* Nothing needed here in fact... */
|
||||
#define tlb_start_vma(tlb, vma) do { } while (0)
|
||||
#define tlb_end_vma(tlb, vma) do { } while (0)
|
||||
|
||||
#define __tlb_remove_tlb_entry(tlb, pte, address) do { } while (0)
|
||||
|
||||
#endif /* _PPC64_TLB_H */
|
||||
|
|
@ -1,52 +0,0 @@
|
|||
#ifndef _PPC64_TLBFLUSH_H
|
||||
#define _PPC64_TLBFLUSH_H
|
||||
|
||||
/*
|
||||
* TLB flushing:
|
||||
*
|
||||
* - flush_tlb_mm(mm) flushes the specified mm context TLB's
|
||||
* - flush_tlb_page(vma, vmaddr) flushes one page
|
||||
* - flush_tlb_page_nohash(vma, vmaddr) flushes one page if SW loaded TLB
|
||||
* - flush_tlb_range(vma, start, end) flushes a range of pages
|
||||
* - flush_tlb_kernel_range(start, end) flushes a range of kernel pages
|
||||
* - flush_tlb_pgtables(mm, start, end) flushes a range of page tables
|
||||
*/
|
||||
|
||||
#include <linux/percpu.h>
|
||||
#include <asm/page.h>
|
||||
|
||||
#define PPC64_TLB_BATCH_NR 192
|
||||
|
||||
struct mm_struct;
|
||||
struct ppc64_tlb_batch {
|
||||
unsigned long index;
|
||||
struct mm_struct *mm;
|
||||
pte_t pte[PPC64_TLB_BATCH_NR];
|
||||
unsigned long vaddr[PPC64_TLB_BATCH_NR];
|
||||
unsigned int large;
|
||||
};
|
||||
DECLARE_PER_CPU(struct ppc64_tlb_batch, ppc64_tlb_batch);
|
||||
|
||||
extern void __flush_tlb_pending(struct ppc64_tlb_batch *batch);
|
||||
|
||||
static inline void flush_tlb_pending(void)
|
||||
{
|
||||
struct ppc64_tlb_batch *batch = &get_cpu_var(ppc64_tlb_batch);
|
||||
|
||||
if (batch->index)
|
||||
__flush_tlb_pending(batch);
|
||||
put_cpu_var(ppc64_tlb_batch);
|
||||
}
|
||||
|
||||
#define flush_tlb_mm(mm) flush_tlb_pending()
|
||||
#define flush_tlb_page(vma, addr) flush_tlb_pending()
|
||||
#define flush_tlb_page_nohash(vma, addr) do { } while (0)
|
||||
#define flush_tlb_range(vma, start, end) \
|
||||
do { (void)(start); flush_tlb_pending(); } while (0)
|
||||
#define flush_tlb_kernel_range(start, end) flush_tlb_pending()
|
||||
#define flush_tlb_pgtables(mm, start, end) do { } while (0)
|
||||
|
||||
extern void flush_hash_page(unsigned long va, pte_t pte, int local);
|
||||
void flush_hash_range(unsigned long number, int local);
|
||||
|
||||
#endif /* _PPC64_TLBFLUSH_H */
|
||||
Loading…
Reference in New Issue