m68k: merge the mmu and non-mmu versions of tlbflush.h
Simple merge of the mmu and non-mmu versions of tlbflush.h Signed-off-by: Greg Ungerer <gerg@uclinux.org>
This commit is contained in:
Greg Ungerer
parent
facdf0ed4f
commit
da4f4a02ab
|
|
@ -1,5 +1,267 @@
|
|||
#ifdef __uClinux__
|
||||
#include "tlbflush_no.h"
|
||||
#ifndef _M68K_TLBFLUSH_H
|
||||
#define _M68K_TLBFLUSH_H
|
||||
|
||||
#ifdef CONFIG_MMU
|
||||
#ifndef CONFIG_SUN3
|
||||
|
||||
#include <asm/current.h>
|
||||
|
||||
static inline void flush_tlb_kernel_page(void *addr)
|
||||
{
|
||||
if (CPU_IS_040_OR_060) {
|
||||
mm_segment_t old_fs = get_fs();
|
||||
set_fs(KERNEL_DS);
|
||||
__asm__ __volatile__(".chip 68040\n\t"
|
||||
"pflush (%0)\n\t"
|
||||
".chip 68k"
|
||||
: : "a" (addr));
|
||||
set_fs(old_fs);
|
||||
} else if (CPU_IS_020_OR_030)
|
||||
__asm__ __volatile__("pflush #4,#4,(%0)" : : "a" (addr));
|
||||
}
|
||||
|
||||
/*
|
||||
* flush all user-space atc entries.
|
||||
*/
|
||||
static inline void __flush_tlb(void)
|
||||
{
|
||||
if (CPU_IS_040_OR_060)
|
||||
__asm__ __volatile__(".chip 68040\n\t"
|
||||
"pflushan\n\t"
|
||||
".chip 68k");
|
||||
else if (CPU_IS_020_OR_030)
|
||||
__asm__ __volatile__("pflush #0,#4");
|
||||
}
|
||||
|
||||
static inline void __flush_tlb040_one(unsigned long addr)
|
||||
{
|
||||
__asm__ __volatile__(".chip 68040\n\t"
|
||||
"pflush (%0)\n\t"
|
||||
".chip 68k"
|
||||
: : "a" (addr));
|
||||
}
|
||||
|
||||
static inline void __flush_tlb_one(unsigned long addr)
|
||||
{
|
||||
if (CPU_IS_040_OR_060)
|
||||
__flush_tlb040_one(addr);
|
||||
else if (CPU_IS_020_OR_030)
|
||||
__asm__ __volatile__("pflush #0,#4,(%0)" : : "a" (addr));
|
||||
}
|
||||
|
||||
#define flush_tlb() __flush_tlb()
|
||||
|
||||
/*
|
||||
* flush all atc entries (both kernel and user-space entries).
|
||||
*/
|
||||
static inline void flush_tlb_all(void)
|
||||
{
|
||||
if (CPU_IS_040_OR_060)
|
||||
__asm__ __volatile__(".chip 68040\n\t"
|
||||
"pflusha\n\t"
|
||||
".chip 68k");
|
||||
else if (CPU_IS_020_OR_030)
|
||||
__asm__ __volatile__("pflusha");
|
||||
}
|
||||
|
||||
static inline void flush_tlb_mm(struct mm_struct *mm)
|
||||
{
|
||||
if (mm == current->active_mm)
|
||||
__flush_tlb();
|
||||
}
|
||||
|
||||
static inline void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr)
|
||||
{
|
||||
if (vma->vm_mm == current->active_mm) {
|
||||
mm_segment_t old_fs = get_fs();
|
||||
set_fs(USER_DS);
|
||||
__flush_tlb_one(addr);
|
||||
set_fs(old_fs);
|
||||
}
|
||||
}
|
||||
|
||||
static inline void flush_tlb_range(struct vm_area_struct *vma,
|
||||
unsigned long start, unsigned long end)
|
||||
{
|
||||
if (vma->vm_mm == current->active_mm)
|
||||
__flush_tlb();
|
||||
}
|
||||
|
||||
static inline void flush_tlb_kernel_range(unsigned long start, unsigned long end)
|
||||
{
|
||||
flush_tlb_all();
|
||||
}
|
||||
|
||||
#else
|
||||
#include "tlbflush_mm.h"
|
||||
|
||||
|
||||
/* Reserved PMEGs. */
|
||||
extern char sun3_reserved_pmeg[SUN3_PMEGS_NUM];
|
||||
extern unsigned long pmeg_vaddr[SUN3_PMEGS_NUM];
|
||||
extern unsigned char pmeg_alloc[SUN3_PMEGS_NUM];
|
||||
extern unsigned char pmeg_ctx[SUN3_PMEGS_NUM];
|
||||
|
||||
/* Flush all userspace mappings one by one... (why no flush command,
|
||||
sun?) */
|
||||
static inline void flush_tlb_all(void)
|
||||
{
|
||||
unsigned long addr;
|
||||
unsigned char ctx, oldctx;
|
||||
|
||||
oldctx = sun3_get_context();
|
||||
for(addr = 0x00000000; addr < TASK_SIZE; addr += SUN3_PMEG_SIZE) {
|
||||
for(ctx = 0; ctx < 8; ctx++) {
|
||||
sun3_put_context(ctx);
|
||||
sun3_put_segmap(addr, SUN3_INVALID_PMEG);
|
||||
}
|
||||
}
|
||||
|
||||
sun3_put_context(oldctx);
|
||||
/* erase all of the userspace pmeg maps, we've clobbered them
|
||||
all anyway */
|
||||
for(addr = 0; addr < SUN3_INVALID_PMEG; addr++) {
|
||||
if(pmeg_alloc[addr] == 1) {
|
||||
pmeg_alloc[addr] = 0;
|
||||
pmeg_ctx[addr] = 0;
|
||||
pmeg_vaddr[addr] = 0;
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
/* Clear user TLB entries within the context named in mm */
|
||||
static inline void flush_tlb_mm (struct mm_struct *mm)
|
||||
{
|
||||
unsigned char oldctx;
|
||||
unsigned char seg;
|
||||
unsigned long i;
|
||||
|
||||
oldctx = sun3_get_context();
|
||||
sun3_put_context(mm->context);
|
||||
|
||||
for(i = 0; i < TASK_SIZE; i += SUN3_PMEG_SIZE) {
|
||||
seg = sun3_get_segmap(i);
|
||||
if(seg == SUN3_INVALID_PMEG)
|
||||
continue;
|
||||
|
||||
sun3_put_segmap(i, SUN3_INVALID_PMEG);
|
||||
pmeg_alloc[seg] = 0;
|
||||
pmeg_ctx[seg] = 0;
|
||||
pmeg_vaddr[seg] = 0;
|
||||
}
|
||||
|
||||
sun3_put_context(oldctx);
|
||||
|
||||
}
|
||||
|
||||
/* Flush a single TLB page. In this case, we're limited to flushing a
|
||||
single PMEG */
|
||||
static inline void flush_tlb_page (struct vm_area_struct *vma,
|
||||
unsigned long addr)
|
||||
{
|
||||
unsigned char oldctx;
|
||||
unsigned char i;
|
||||
|
||||
oldctx = sun3_get_context();
|
||||
sun3_put_context(vma->vm_mm->context);
|
||||
addr &= ~SUN3_PMEG_MASK;
|
||||
if((i = sun3_get_segmap(addr)) != SUN3_INVALID_PMEG)
|
||||
{
|
||||
pmeg_alloc[i] = 0;
|
||||
pmeg_ctx[i] = 0;
|
||||
pmeg_vaddr[i] = 0;
|
||||
sun3_put_segmap (addr, SUN3_INVALID_PMEG);
|
||||
}
|
||||
sun3_put_context(oldctx);
|
||||
|
||||
}
|
||||
/* Flush a range of pages from TLB. */
|
||||
|
||||
static inline void flush_tlb_range (struct vm_area_struct *vma,
|
||||
unsigned long start, unsigned long end)
|
||||
{
|
||||
struct mm_struct *mm = vma->vm_mm;
|
||||
unsigned char seg, oldctx;
|
||||
|
||||
start &= ~SUN3_PMEG_MASK;
|
||||
|
||||
oldctx = sun3_get_context();
|
||||
sun3_put_context(mm->context);
|
||||
|
||||
while(start < end)
|
||||
{
|
||||
if((seg = sun3_get_segmap(start)) == SUN3_INVALID_PMEG)
|
||||
goto next;
|
||||
if(pmeg_ctx[seg] == mm->context) {
|
||||
pmeg_alloc[seg] = 0;
|
||||
pmeg_ctx[seg] = 0;
|
||||
pmeg_vaddr[seg] = 0;
|
||||
}
|
||||
sun3_put_segmap(start, SUN3_INVALID_PMEG);
|
||||
next:
|
||||
start += SUN3_PMEG_SIZE;
|
||||
}
|
||||
}
|
||||
|
||||
static inline void flush_tlb_kernel_range(unsigned long start, unsigned long end)
|
||||
{
|
||||
flush_tlb_all();
|
||||
}
|
||||
|
||||
/* Flush kernel page from TLB. */
|
||||
static inline void flush_tlb_kernel_page (unsigned long addr)
|
||||
{
|
||||
sun3_put_segmap (addr & ~(SUN3_PMEG_SIZE - 1), SUN3_INVALID_PMEG);
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
#else /* !CONFIG_MMU */
|
||||
|
||||
/*
|
||||
* flush all user-space atc entries.
|
||||
*/
|
||||
static inline void __flush_tlb(void)
|
||||
{
|
||||
BUG();
|
||||
}
|
||||
|
||||
static inline void __flush_tlb_one(unsigned long addr)
|
||||
{
|
||||
BUG();
|
||||
}
|
||||
|
||||
#define flush_tlb() __flush_tlb()
|
||||
|
||||
/*
|
||||
* flush all atc entries (both kernel and user-space entries).
|
||||
*/
|
||||
static inline void flush_tlb_all(void)
|
||||
{
|
||||
BUG();
|
||||
}
|
||||
|
||||
static inline void flush_tlb_mm(struct mm_struct *mm)
|
||||
{
|
||||
BUG();
|
||||
}
|
||||
|
||||
static inline void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr)
|
||||
{
|
||||
BUG();
|
||||
}
|
||||
|
||||
static inline void flush_tlb_range(struct mm_struct *mm,
|
||||
unsigned long start, unsigned long end)
|
||||
{
|
||||
BUG();
|
||||
}
|
||||
|
||||
static inline void flush_tlb_kernel_page(unsigned long addr)
|
||||
{
|
||||
BUG();
|
||||
}
|
||||
|
||||
#endif /* CONFIG_MMU */
|
||||
|
||||
#endif /* _M68K_TLBFLUSH_H */
|
||||
|
|
|
|||
|
|
@ -1,219 +0,0 @@
|
|||
#ifndef _M68K_TLBFLUSH_H
|
||||
#define _M68K_TLBFLUSH_H
|
||||
|
||||
|
||||
#ifndef CONFIG_SUN3
|
||||
|
||||
#include <asm/current.h>
|
||||
|
||||
static inline void flush_tlb_kernel_page(void *addr)
|
||||
{
|
||||
if (CPU_IS_040_OR_060) {
|
||||
mm_segment_t old_fs = get_fs();
|
||||
set_fs(KERNEL_DS);
|
||||
__asm__ __volatile__(".chip 68040\n\t"
|
||||
"pflush (%0)\n\t"
|
||||
".chip 68k"
|
||||
: : "a" (addr));
|
||||
set_fs(old_fs);
|
||||
} else if (CPU_IS_020_OR_030)
|
||||
__asm__ __volatile__("pflush #4,#4,(%0)" : : "a" (addr));
|
||||
}
|
||||
|
||||
/*
|
||||
* flush all user-space atc entries.
|
||||
*/
|
||||
static inline void __flush_tlb(void)
|
||||
{
|
||||
if (CPU_IS_040_OR_060)
|
||||
__asm__ __volatile__(".chip 68040\n\t"
|
||||
"pflushan\n\t"
|
||||
".chip 68k");
|
||||
else if (CPU_IS_020_OR_030)
|
||||
__asm__ __volatile__("pflush #0,#4");
|
||||
}
|
||||
|
||||
static inline void __flush_tlb040_one(unsigned long addr)
|
||||
{
|
||||
__asm__ __volatile__(".chip 68040\n\t"
|
||||
"pflush (%0)\n\t"
|
||||
".chip 68k"
|
||||
: : "a" (addr));
|
||||
}
|
||||
|
||||
static inline void __flush_tlb_one(unsigned long addr)
|
||||
{
|
||||
if (CPU_IS_040_OR_060)
|
||||
__flush_tlb040_one(addr);
|
||||
else if (CPU_IS_020_OR_030)
|
||||
__asm__ __volatile__("pflush #0,#4,(%0)" : : "a" (addr));
|
||||
}
|
||||
|
||||
#define flush_tlb() __flush_tlb()
|
||||
|
||||
/*
|
||||
* flush all atc entries (both kernel and user-space entries).
|
||||
*/
|
||||
static inline void flush_tlb_all(void)
|
||||
{
|
||||
if (CPU_IS_040_OR_060)
|
||||
__asm__ __volatile__(".chip 68040\n\t"
|
||||
"pflusha\n\t"
|
||||
".chip 68k");
|
||||
else if (CPU_IS_020_OR_030)
|
||||
__asm__ __volatile__("pflusha");
|
||||
}
|
||||
|
||||
static inline void flush_tlb_mm(struct mm_struct *mm)
|
||||
{
|
||||
if (mm == current->active_mm)
|
||||
__flush_tlb();
|
||||
}
|
||||
|
||||
static inline void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr)
|
||||
{
|
||||
if (vma->vm_mm == current->active_mm) {
|
||||
mm_segment_t old_fs = get_fs();
|
||||
set_fs(USER_DS);
|
||||
__flush_tlb_one(addr);
|
||||
set_fs(old_fs);
|
||||
}
|
||||
}
|
||||
|
||||
static inline void flush_tlb_range(struct vm_area_struct *vma,
|
||||
unsigned long start, unsigned long end)
|
||||
{
|
||||
if (vma->vm_mm == current->active_mm)
|
||||
__flush_tlb();
|
||||
}
|
||||
|
||||
static inline void flush_tlb_kernel_range(unsigned long start, unsigned long end)
|
||||
{
|
||||
flush_tlb_all();
|
||||
}
|
||||
|
||||
#else
|
||||
|
||||
|
||||
/* Reserved PMEGs. */
|
||||
extern char sun3_reserved_pmeg[SUN3_PMEGS_NUM];
|
||||
extern unsigned long pmeg_vaddr[SUN3_PMEGS_NUM];
|
||||
extern unsigned char pmeg_alloc[SUN3_PMEGS_NUM];
|
||||
extern unsigned char pmeg_ctx[SUN3_PMEGS_NUM];
|
||||
|
||||
/* Flush all userspace mappings one by one... (why no flush command,
|
||||
sun?) */
|
||||
static inline void flush_tlb_all(void)
|
||||
{
|
||||
unsigned long addr;
|
||||
unsigned char ctx, oldctx;
|
||||
|
||||
oldctx = sun3_get_context();
|
||||
for(addr = 0x00000000; addr < TASK_SIZE; addr += SUN3_PMEG_SIZE) {
|
||||
for(ctx = 0; ctx < 8; ctx++) {
|
||||
sun3_put_context(ctx);
|
||||
sun3_put_segmap(addr, SUN3_INVALID_PMEG);
|
||||
}
|
||||
}
|
||||
|
||||
sun3_put_context(oldctx);
|
||||
/* erase all of the userspace pmeg maps, we've clobbered them
|
||||
all anyway */
|
||||
for(addr = 0; addr < SUN3_INVALID_PMEG; addr++) {
|
||||
if(pmeg_alloc[addr] == 1) {
|
||||
pmeg_alloc[addr] = 0;
|
||||
pmeg_ctx[addr] = 0;
|
||||
pmeg_vaddr[addr] = 0;
|
||||
}
|
||||
}
|
||||
|
||||
}
|
||||
|
||||
/* Clear user TLB entries within the context named in mm */
|
||||
static inline void flush_tlb_mm (struct mm_struct *mm)
|
||||
{
|
||||
unsigned char oldctx;
|
||||
unsigned char seg;
|
||||
unsigned long i;
|
||||
|
||||
oldctx = sun3_get_context();
|
||||
sun3_put_context(mm->context);
|
||||
|
||||
for(i = 0; i < TASK_SIZE; i += SUN3_PMEG_SIZE) {
|
||||
seg = sun3_get_segmap(i);
|
||||
if(seg == SUN3_INVALID_PMEG)
|
||||
continue;
|
||||
|
||||
sun3_put_segmap(i, SUN3_INVALID_PMEG);
|
||||
pmeg_alloc[seg] = 0;
|
||||
pmeg_ctx[seg] = 0;
|
||||
pmeg_vaddr[seg] = 0;
|
||||
}
|
||||
|
||||
sun3_put_context(oldctx);
|
||||
|
||||
}
|
||||
|
||||
/* Flush a single TLB page. In this case, we're limited to flushing a
|
||||
single PMEG */
|
||||
static inline void flush_tlb_page (struct vm_area_struct *vma,
|
||||
unsigned long addr)
|
||||
{
|
||||
unsigned char oldctx;
|
||||
unsigned char i;
|
||||
|
||||
oldctx = sun3_get_context();
|
||||
sun3_put_context(vma->vm_mm->context);
|
||||
addr &= ~SUN3_PMEG_MASK;
|
||||
if((i = sun3_get_segmap(addr)) != SUN3_INVALID_PMEG)
|
||||
{
|
||||
pmeg_alloc[i] = 0;
|
||||
pmeg_ctx[i] = 0;
|
||||
pmeg_vaddr[i] = 0;
|
||||
sun3_put_segmap (addr, SUN3_INVALID_PMEG);
|
||||
}
|
||||
sun3_put_context(oldctx);
|
||||
|
||||
}
|
||||
/* Flush a range of pages from TLB. */
|
||||
|
||||
static inline void flush_tlb_range (struct vm_area_struct *vma,
|
||||
unsigned long start, unsigned long end)
|
||||
{
|
||||
struct mm_struct *mm = vma->vm_mm;
|
||||
unsigned char seg, oldctx;
|
||||
|
||||
start &= ~SUN3_PMEG_MASK;
|
||||
|
||||
oldctx = sun3_get_context();
|
||||
sun3_put_context(mm->context);
|
||||
|
||||
while(start < end)
|
||||
{
|
||||
if((seg = sun3_get_segmap(start)) == SUN3_INVALID_PMEG)
|
||||
goto next;
|
||||
if(pmeg_ctx[seg] == mm->context) {
|
||||
pmeg_alloc[seg] = 0;
|
||||
pmeg_ctx[seg] = 0;
|
||||
pmeg_vaddr[seg] = 0;
|
||||
}
|
||||
sun3_put_segmap(start, SUN3_INVALID_PMEG);
|
||||
next:
|
||||
start += SUN3_PMEG_SIZE;
|
||||
}
|
||||
}
|
||||
|
||||
static inline void flush_tlb_kernel_range(unsigned long start, unsigned long end)
|
||||
{
|
||||
flush_tlb_all();
|
||||
}
|
||||
|
||||
/* Flush kernel page from TLB. */
|
||||
static inline void flush_tlb_kernel_page (unsigned long addr)
|
||||
{
|
||||
sun3_put_segmap (addr & ~(SUN3_PMEG_SIZE - 1), SUN3_INVALID_PMEG);
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
#endif /* _M68K_TLBFLUSH_H */
|
||||
|
|
@ -1,55 +0,0 @@
|
|||
#ifndef _M68KNOMMU_TLBFLUSH_H
|
||||
#define _M68KNOMMU_TLBFLUSH_H
|
||||
|
||||
/*
|
||||
* Copyright (C) 2000 Lineo, David McCullough <davidm@uclinux.org>
|
||||
* Copyright (C) 2000-2002, Greg Ungerer <gerg@snapgear.com>
|
||||
*/
|
||||
|
||||
#include <asm/setup.h>
|
||||
|
||||
/*
|
||||
* flush all user-space atc entries.
|
||||
*/
|
||||
static inline void __flush_tlb(void)
|
||||
{
|
||||
BUG();
|
||||
}
|
||||
|
||||
static inline void __flush_tlb_one(unsigned long addr)
|
||||
{
|
||||
BUG();
|
||||
}
|
||||
|
||||
#define flush_tlb() __flush_tlb()
|
||||
|
||||
/*
|
||||
* flush all atc entries (both kernel and user-space entries).
|
||||
*/
|
||||
static inline void flush_tlb_all(void)
|
||||
{
|
||||
BUG();
|
||||
}
|
||||
|
||||
static inline void flush_tlb_mm(struct mm_struct *mm)
|
||||
{
|
||||
BUG();
|
||||
}
|
||||
|
||||
static inline void flush_tlb_page(struct vm_area_struct *vma, unsigned long addr)
|
||||
{
|
||||
BUG();
|
||||
}
|
||||
|
||||
static inline void flush_tlb_range(struct mm_struct *mm,
|
||||
unsigned long start, unsigned long end)
|
||||
{
|
||||
BUG();
|
||||
}
|
||||
|
||||
static inline void flush_tlb_kernel_page(unsigned long addr)
|
||||
{
|
||||
BUG();
|
||||
}
|
||||
|
||||
#endif /* _M68KNOMMU_TLBFLUSH_H */
|
||||
Loading…
Reference in New Issue