Commit b749567a authored by Linus Torvalds's avatar Linus Torvalds

Merge

parents 023f147f 7ee912ba
......@@ -19,6 +19,8 @@
#include <asm/system.h>
#include <asm/pci.h>
#include <asm/hwrpb.h>
#include <asm/cacheflush.h>
#include <asm/tlbflush.h>
#define __EXTERN_INLINE inline
#include <asm/io.h>
......
......@@ -26,6 +26,7 @@
#include <asm/irq.h>
#include <asm/pgtable.h>
#include <asm/core_cia.h>
#include <asm/tlbflush.h>
#include "proto.h"
#include "irq_impl.h"
......
......@@ -28,6 +28,7 @@
#include <asm/core_apecs.h>
#include <asm/core_cia.h>
#include <asm/core_lca.h>
#include <asm/tlbflush.h>
#include "proto.h"
#include "irq_impl.h"
......
......@@ -30,6 +30,7 @@
#include <asm/pgtable.h>
#include <asm/core_tsunami.h>
#include <asm/hwrpb.h>
#include <asm/tlbflush.h>
#include "proto.h"
#include "irq_impl.h"
......
......@@ -27,6 +27,7 @@
#include <asm/core_apecs.h>
#include <asm/core_lca.h>
#include <asm/hwrpb.h>
#include <asm/tlbflush.h>
#include "proto.h"
#include "irq_impl.h"
......
......@@ -27,6 +27,7 @@
#include <asm/pgtable.h>
#include <asm/core_tsunami.h>
#include <asm/hwrpb.h>
#include <asm/tlbflush.h>
#include "proto.h"
#include "irq_impl.h"
......
......@@ -26,6 +26,7 @@
#include <asm/irq.h>
#include <asm/mmu_context.h>
#include <asm/pgtable.h>
#include <asm/tlbflush.h>
#include "proto.h"
#include "irq_impl.h"
......
......@@ -24,6 +24,7 @@
#include <asm/io.h>
#include <asm/pgtable.h>
#include <asm/core_cia.h>
#include <asm/tlbflush.h>
#include "proto.h"
#include "irq_impl.h"
......
......@@ -26,6 +26,7 @@
#include <asm/pgtable.h>
#include <asm/core_apecs.h>
#include <asm/core_cia.h>
#include <asm/tlbflush.h>
#include "proto.h"
#include "irq_impl.h"
......
......@@ -43,6 +43,7 @@
#include <asm/pgtable.h>
#include <asm/core_irongate.h>
#include <asm/hwrpb.h>
#include <asm/tlbflush.h>
#include "proto.h"
#include "irq_impl.h"
......
......@@ -27,6 +27,7 @@
#include <asm/pgtable.h>
#include <asm/core_apecs.h>
#include <asm/core_cia.h>
#include <asm/tlbflush.h>
#include "proto.h"
#include "irq_impl.h"
......
......@@ -23,6 +23,7 @@
#include <asm/io.h>
#include <asm/pgtable.h>
#include <asm/core_mcpcia.h>
#include <asm/tlbflush.h>
#include "proto.h"
#include "irq_impl.h"
......
......@@ -24,6 +24,7 @@
#include <asm/io.h>
#include <asm/pgtable.h>
#include <asm/core_cia.h>
#include <asm/tlbflush.h>
#include "proto.h"
#include "irq_impl.h"
......
......@@ -24,6 +24,7 @@
#include <asm/io.h>
#include <asm/pgtable.h>
#include <asm/core_polaris.h>
#include <asm/tlbflush.h>
#include "proto.h"
#include "irq_impl.h"
......
......@@ -24,6 +24,7 @@
#include <asm/io.h>
#include <asm/pgtable.h>
#include <asm/core_t2.h>
#include <asm/tlbflush.h>
#include "proto.h"
#include "irq_impl.h"
......
......@@ -29,6 +29,7 @@
#include <asm/pgtable.h>
#include <asm/core_apecs.h>
#include <asm/core_lca.h>
#include <asm/tlbflush.h>
#include "proto.h"
#include "irq_impl.h"
......
......@@ -25,6 +25,7 @@
#include <asm/pgtable.h>
#include <asm/core_cia.h>
#include <asm/hwrpb.h>
#include <asm/tlbflush.h>
#include "proto.h"
#include "irq_impl.h"
......
......@@ -23,6 +23,7 @@
#include <asm/io.h>
#include <asm/pgtable.h>
#include <asm/core_cia.h>
#include <asm/tlbflush.h>
#include "proto.h"
#include "irq_impl.h"
......
......@@ -28,6 +28,7 @@
#include <asm/pgtable.h>
#include <asm/core_titan.h>
#include <asm/hwrpb.h>
#include <asm/tlbflush.h>
#include "proto.h"
#include "irq_impl.h"
......
......@@ -23,6 +23,7 @@
#include <asm/pgtable.h>
#include <asm/core_wildfire.h>
#include <asm/hwrpb.h>
#include <asm/tlbflush.h>
#include "proto.h"
#include "irq_impl.h"
......
......@@ -12,7 +12,7 @@
#define __EXTERN_INLINE inline
#include <asm/mmu_context.h>
#include <asm/pgalloc.h>
#include <asm/tlbflush.h>
#undef __EXTERN_INLINE
#include <linux/signal.h>
......
......@@ -43,6 +43,7 @@
#include <asm/pgtable.h>
#include <asm/pgalloc.h>
#include <asm/io_apic.h>
#include <asm/tlbflush.h>
#define PREFIX "ACPI: "
......
......@@ -12,10 +12,12 @@
#include <linux/mm.h>
#include <linux/smp.h>
#include <linux/smp_lock.h>
#include <linux/highmem.h>
#include <asm/uaccess.h>
#include <asm/pgalloc.h>
#include <asm/io.h>
#include <asm/tlbflush.h>
/*
* Known problems:
......
......@@ -37,6 +37,7 @@
#include <asm/e820.h>
#include <asm/apic.h>
#include <asm/tlb.h>
#include <asm/tlbflush.h>
mmu_gather_t mmu_gathers[NR_CPUS];
unsigned long highstart_pfn, highend_pfn;
......@@ -573,7 +574,8 @@ void si_meminfo(struct sysinfo *val)
}
#if defined(CONFIG_X86_PAE)
struct kmem_cache_s *pae_pgd_cachep;
static struct kmem_cache_s *pae_pgd_cachep;
void __init pgtable_cache_init(void)
{
/*
......@@ -584,4 +586,96 @@ void __init pgtable_cache_init(void)
if (!pae_pgd_cachep)
panic("init_pae(): Cannot alloc pae_pgd SLAB cache");
}
pgd_t *pgd_alloc(struct mm_struct *mm)
{
int i;
pgd_t *pgd = kmem_cache_alloc(pae_pgd_cachep, GFP_KERNEL);
if (pgd) {
for (i = 0; i < USER_PTRS_PER_PGD; i++) {
unsigned long pmd = __get_free_page(GFP_KERNEL);
if (!pmd)
goto out_oom;
clear_page(pmd);
set_pgd(pgd + i, __pgd(1 + __pa(pmd)));
}
memcpy(pgd + USER_PTRS_PER_PGD,
swapper_pg_dir + USER_PTRS_PER_PGD,
(PTRS_PER_PGD - USER_PTRS_PER_PGD) * sizeof(pgd_t));
}
return pgd;
out_oom:
for (i--; i >= 0; i--)
free_page((unsigned long)__va(pgd_val(pgd[i])-1));
kmem_cache_free(pae_pgd_cachep, pgd);
return NULL;
}
void pgd_free(pgd_t *pgd)
{
int i;
for (i = 0; i < USER_PTRS_PER_PGD; i++)
free_page((unsigned long)__va(pgd_val(pgd[i])-1));
kmem_cache_free(pae_pgd_cachep, pgd);
}
#else
pgd_t *pgd_alloc(struct mm_struct *mm)
{
pgd_t *pgd = (pgd_t *)__get_free_page(GFP_KERNEL);
if (pgd) {
memset(pgd, 0, USER_PTRS_PER_PGD * sizeof(pgd_t));
memcpy(pgd + USER_PTRS_PER_PGD,
swapper_pg_dir + USER_PTRS_PER_PGD,
(PTRS_PER_PGD - USER_PTRS_PER_PGD) * sizeof(pgd_t));
}
return pgd;
}
void pgd_free(pgd_t *pgd)
{
free_page((unsigned long)pgd);
}
#endif /* CONFIG_X86_PAE */
pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
{
int count = 0;
pte_t *pte;
do {
pte = (pte_t *) __get_free_page(GFP_KERNEL);
if (pte)
clear_page(pte);
else {
current->state = TASK_UNINTERRUPTIBLE;
schedule_timeout(HZ);
}
} while (!pte && (count++ < 10));
return pte;
}
struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address)
{
int count = 0;
struct page *pte;
do {
#if CONFIG_HIGHPTE
pte = alloc_pages(GFP_KERNEL | __GFP_HIGHMEM, 0);
#else
pte = alloc_pages(GFP_KERNEL, 0);
#endif
if (pte)
clear_highpage(pte);
else {
current->state = TASK_UNINTERRUPTIBLE;
schedule_timeout(HZ);
}
} while (!pte && (count++ < 10));
return pte;
}
......@@ -12,6 +12,9 @@
#include <asm/io.h>
#include <asm/pgalloc.h>
#include <asm/fixmap.h>
#include <asm/cacheflush.h>
#include <asm/tlbflush.h>
static inline void remap_area_pte(pte_t * pte, unsigned long address, unsigned long size,
unsigned long phys_addr, unsigned long flags)
......
......@@ -28,6 +28,7 @@
#include <asm/system.h>
#include <asm/uaccess.h>
#include <asm/pgalloc.h>
#include <asm/cacheflush.h>
static int load_aout_binary(struct linux_binprm *, struct pt_regs * regs);
static int load_aout_library(struct file*);
......
#ifndef _ALPHA_CACHEFLUSH_H
#define _ALPHA_CACHEFLUSH_H
#include <linux/config.h>
#include <linux/mm.h>
/* Caches aren't brain-dead on the Alpha. */
#define flush_cache_all() do { } while (0)
#define flush_cache_mm(mm) do { } while (0)
#define flush_cache_range(vma, start, end) do { } while (0)
#define flush_cache_page(vma, vmaddr) do { } while (0)
#define flush_page_to_ram(page) do { } while (0)
#define flush_dcache_page(page) do { } while (0)
/* Note that the following two definitions are _highly_ dependent
on the contexts in which they are used in the kernel. I personally
think it is criminal how loosely defined these macros are. */
/* We need to flush the kernel's icache after loading modules. The
only other use of this macro is in load_aout_interp which is not
used on Alpha.
Note that this definition should *not* be used for userspace
icache flushing. While functional, it is _way_ overkill. The
icache is tagged with ASNs and it suffices to allocate a new ASN
for the process. */
#ifndef CONFIG_SMP
#define flush_icache_range(start, end) imb()
#else
#define flush_icache_range(start, end) smp_imb()
extern void smp_imb(void);
#endif
/* We need to flush the userspace icache after setting breakpoints in
ptrace.
Instead of indiscriminately using imb, take advantage of the fact
that icache entries are tagged with the ASN and load a new mm context. */
/* ??? Ought to use this in arch/alpha/kernel/signal.c too. */
#ifndef CONFIG_SMP
extern void __load_new_mm_context(struct mm_struct *);
static inline void
flush_icache_user_range(struct vm_area_struct *vma, struct page *page,
unsigned long addr, int len)
{
if (vma->vm_flags & VM_EXEC) {
struct mm_struct *mm = vma->vm_mm;
if (current->active_mm == mm)
__load_new_mm_context(mm);
else
mm->context[smp_processor_id()] = 0;
}
}
#else
extern void flush_icache_user_range(struct vm_area_struct *vma,
struct page *page, unsigned long addr, int len);
#endif
/* This is used only in do_no_page and do_swap_page. */
#define flush_icache_page(vma, page) \
flush_icache_user_range((vma), (page), 0, 0)
#endif /* _ALPHA_CACHEFLUSH_H */
......@@ -3,228 +3,6 @@
#include <linux/config.h>
#ifndef __EXTERN_INLINE
#define __EXTERN_INLINE extern inline
#define __MMU_EXTERN_INLINE
#endif
extern void __load_new_mm_context(struct mm_struct *);
/* Caches aren't brain-dead on the Alpha. */
#define flush_cache_all() do { } while (0)
#define flush_cache_mm(mm) do { } while (0)
#define flush_cache_range(vma, start, end) do { } while (0)
#define flush_cache_page(vma, vmaddr) do { } while (0)
#define flush_page_to_ram(page) do { } while (0)
#define flush_dcache_page(page) do { } while (0)
/* Note that the following two definitions are _highly_ dependent
on the contexts in which they are used in the kernel. I personally
think it is criminal how loosely defined these macros are. */
/* We need to flush the kernel's icache after loading modules. The
only other use of this macro is in load_aout_interp which is not
used on Alpha.
Note that this definition should *not* be used for userspace
icache flushing. While functional, it is _way_ overkill. The
icache is tagged with ASNs and it suffices to allocate a new ASN
for the process. */
#ifndef CONFIG_SMP
#define flush_icache_range(start, end) imb()
#else
#define flush_icache_range(start, end) smp_imb()
extern void smp_imb(void);
#endif
/*
* Use a few helper functions to hide the ugly broken ASN
* numbers on early Alphas (ev4 and ev45)
*/
__EXTERN_INLINE void
ev4_flush_tlb_current(struct mm_struct *mm)
{
__load_new_mm_context(mm);
tbiap();
}
__EXTERN_INLINE void
ev5_flush_tlb_current(struct mm_struct *mm)
{
__load_new_mm_context(mm);
}
static inline void
flush_tlb_other(struct mm_struct *mm)
{
long * mmc = &mm->context[smp_processor_id()];
/*
* Check it's not zero first to avoid cacheline ping pong when
* possible.
*/
if (*mmc)
*mmc = 0;
}
/* We need to flush the userspace icache after setting breakpoints in
ptrace.
Instead of indiscriminately using imb, take advantage of the fact
that icache entries are tagged with the ASN and load a new mm context. */
/* ??? Ought to use this in arch/alpha/kernel/signal.c too. */
#ifndef CONFIG_SMP
static inline void
flush_icache_user_range(struct vm_area_struct *vma, struct page *page,
unsigned long addr, int len)
{
if (vma->vm_flags & VM_EXEC) {
struct mm_struct *mm = vma->vm_mm;
if (current->active_mm == mm)
__load_new_mm_context(mm);
else
mm->context[smp_processor_id()] = 0;
}
}
#else
extern void flush_icache_user_range(struct vm_area_struct *vma,
struct page *page, unsigned long addr, int len);
#endif
/* this is used only in do_no_page and do_swap_page */
#define flush_icache_page(vma, page) flush_icache_user_range((vma), (page), 0, 0)
/*
* Flush just one page in the current TLB set.
* We need to be very careful about the icache here, there
* is no way to invalidate a specific icache page..
*/
__EXTERN_INLINE void
ev4_flush_tlb_current_page(struct mm_struct * mm,
struct vm_area_struct *vma,
unsigned long addr)
{
int tbi_flag = 2;
if (vma->vm_flags & VM_EXEC) {
__load_new_mm_context(mm);
tbi_flag = 3;
}
tbi(tbi_flag, addr);
}
__EXTERN_INLINE void
ev5_flush_tlb_current_page(struct mm_struct * mm,
struct vm_area_struct *vma,
unsigned long addr)
{
if (vma->vm_flags & VM_EXEC)
__load_new_mm_context(mm);
else
tbi(2, addr);
}
#ifdef CONFIG_ALPHA_GENERIC
# define flush_tlb_current alpha_mv.mv_flush_tlb_current
# define flush_tlb_current_page alpha_mv.mv_flush_tlb_current_page
#else
# ifdef CONFIG_ALPHA_EV4
# define flush_tlb_current ev4_flush_tlb_current
# define flush_tlb_current_page ev4_flush_tlb_current_page
# else
# define flush_tlb_current ev5_flush_tlb_current
# define flush_tlb_current_page ev5_flush_tlb_current_page
# endif
#endif
#ifdef __MMU_EXTERN_INLINE
#undef __EXTERN_INLINE
#undef __MMU_EXTERN_INLINE
#endif
/*
* Flush current user mapping.
*/
static inline void flush_tlb(void)
{
flush_tlb_current(current->active_mm);
}
/*
* Flush a specified range of user mapping page tables
* from TLB.
* Although Alpha uses VPTE caches, this can be a nop, as Alpha does
* not have finegrained tlb flushing, so it will flush VPTE stuff
* during next flush_tlb_range.
*/
static inline void flush_tlb_pgtables(struct mm_struct *mm,
unsigned long start, unsigned long end)
{
}
#ifndef CONFIG_SMP
/*
* Flush everything (kernel mapping may also have
* changed due to vmalloc/vfree)
*/
static inline void flush_tlb_all(void)
{
tbia();
}
/*
* Flush a specified user mapping
*/
static inline void flush_tlb_mm(struct mm_struct *mm)
{
if (mm == current->active_mm)
flush_tlb_current(mm);
else
flush_tlb_other(mm);
}
/*
* Page-granular tlb flush.
*
* do a tbisd (type = 2) normally, and a tbis (type = 3)
* if it is an executable mapping. We want to avoid the
* itlb flush, because that potentially also does a
* icache flush.
*/
static inline void flush_tlb_page(struct vm_area_struct *vma,
unsigned long addr)
{
struct mm_struct * mm = vma->vm_mm;
if (mm == current->active_mm)
flush_tlb_current_page(mm, vma, addr);
else
flush_tlb_other(mm);
}
/*
* Flush a specified range of user mapping: on the
* Alpha we flush the whole user tlb.
*/
static inline void flush_tlb_range(struct vm_area_struct *vma,
unsigned long start, unsigned long end)
{
flush_tlb_mm(vma->vm_mm);
}
#else /* CONFIG_SMP */
extern void flush_tlb_all(void);
extern void flush_tlb_mm(struct mm_struct *);
extern void flush_tlb_page(struct vm_area_struct *, unsigned long);
extern void flush_tlb_range(struct vm_area_struct *, unsigned long, unsigned long);
#endif /* CONFIG_SMP */
/*
* Allocate and free page tables. The xxx_kernel() versions are
* used to allocate a kernel page table - this turns on ASN bits
......@@ -292,4 +70,6 @@ pte_free(struct page *page)
__free_page(page);
}
#define check_pgt_cache() do { } while (0)
#endif /* _ALPHA_PGALLOC_H */
#ifndef _ALPHA_TLBFLUSH_H
#define _ALPHA_TLBFLUSH_H
#include <linux/config.h>
#include <linux/mm.h>
#ifndef __EXTERN_INLINE
#define __EXTERN_INLINE extern inline
#define __MMU_EXTERN_INLINE
#endif
extern void __load_new_mm_context(struct mm_struct *);
/* Use a few helper functions to hide the ugly broken ASN
numbers on early Alphas (ev4 and ev45). */
__EXTERN_INLINE void
ev4_flush_tlb_current(struct mm_struct *mm)
{
__load_new_mm_context(mm);
tbiap();
}
__EXTERN_INLINE void
ev5_flush_tlb_current(struct mm_struct *mm)
{
__load_new_mm_context(mm);
}
/* Flush just one page in the current TLB set. We need to be very
careful about the icache here, there is no way to invalidate a
specific icache page. */
__EXTERN_INLINE void
ev4_flush_tlb_current_page(struct mm_struct * mm,
struct vm_area_struct *vma,
unsigned long addr)
{
int tbi_flag = 2;
if (vma->vm_flags & VM_EXEC) {
__load_new_mm_context(mm);
tbi_flag = 3;
}
tbi(tbi_flag, addr);
}
__EXTERN_INLINE void
ev5_flush_tlb_current_page(struct mm_struct * mm,
struct vm_area_struct *vma,
unsigned long addr)
{
if (vma->vm_flags & VM_EXEC)
__load_new_mm_context(mm);
else
tbi(2, addr);
}
#ifdef CONFIG_ALPHA_GENERIC
# define flush_tlb_current alpha_mv.mv_flush_tlb_current
# define flush_tlb_current_page alpha_mv.mv_flush_tlb_current_page
#else
# ifdef CONFIG_ALPHA_EV4
# define flush_tlb_current ev4_flush_tlb_current
# define flush_tlb_current_page ev4_flush_tlb_current_page
# else
# define flush_tlb_current ev5_flush_tlb_current
# define flush_tlb_current_page ev5_flush_tlb_current_page
# endif
#endif
#ifdef __MMU_EXTERN_INLINE
#undef __EXTERN_INLINE
#undef __MMU_EXTERN_INLINE
#endif
/* Flush current user mapping. */
static inline void
flush_tlb(void)
{
flush_tlb_current(current->active_mm);
}
/* Flush someone else's user mapping. */
static inline void
flush_tlb_other(struct mm_struct *mm)
{
long *mmc = &mm->context[smp_processor_id()];
/* Check it's not zero first to avoid cacheline ping pong
when possible. */
if (*mmc) *mmc = 0;
}
/* Flush a specified range of user mapping page tables from TLB.
Although Alpha uses VPTE caches, this can be a nop, as Alpha does
not have finegrained tlb flushing, so it will flush VPTE stuff
during next flush_tlb_range. */
static inline void
flush_tlb_pgtables(struct mm_struct *mm, unsigned long start,
unsigned long end)
{
}
#ifndef CONFIG_SMP
/* Flush everything (kernel mapping may also have changed
due to vmalloc/vfree). */
static inline void flush_tlb_all(void)
{
tbia();
}
/* Flush a specified user mapping. */
static inline void
flush_tlb_mm(struct mm_struct *mm)
{
if (mm == current->active_mm)
flush_tlb_current(mm);
else
flush_tlb_other(mm);
}
/* Page-granular tlb flush. */
static inline void
flush_tlb_page(struct vm_area_struct *vma, unsigned long addr)
{
struct mm_struct *mm = vma->vm_mm;
if (mm == current->active_mm)
flush_tlb_current_page(mm, vma, addr);
else
flush_tlb_other(mm);
}
/* Flush a specified range of user mapping. On the Alpha we flush
the whole user tlb. */
static inline void
flush_tlb_range(struct vm_area_struct *vma, unsigned long start,
unsigned long end)
{
flush_tlb_mm(vma->vm_mm);
}
#else /* CONFIG_SMP */
extern void flush_tlb_all(void);
extern void flush_tlb_mm(struct mm_struct *);
extern void flush_tlb_page(struct vm_area_struct *, unsigned long);
extern void flush_tlb_range(struct vm_area_struct *, unsigned long,
unsigned long);
#endif /* CONFIG_SMP */
#endif /* _ALPHA_TLBFLUSH_H */
#ifndef _I386_CACHEFLUSH_H
#define _I386_CACHEFLUSH_H
/* Keep includes the same across arches. */
#include <linux/mm.h>
/* Caches aren't brain-dead on the intel. */
#define flush_cache_all() do { } while (0)
#define flush_cache_mm(mm) do { } while (0)
#define flush_cache_range(vma, start, end) do { } while (0)
#define flush_cache_page(vma, vmaddr) do { } while (0)
#define flush_page_to_ram(page) do { } while (0)
#define flush_dcache_page(page) do { } while (0)
#define flush_icache_range(start, end) do { } while (0)
#define flush_icache_page(vma,pg) do { } while (0)
#define flush_icache_user_range(vma,pg,adr,len) do { } while (0)
#endif /* _I386_CACHEFLUSH_H */
......@@ -5,7 +5,6 @@
#include <asm/processor.h>
#include <asm/fixmap.h>
#include <linux/threads.h>
#include <linux/highmem.h>
#define pmd_populate_kernel(mm, pmd, pte) \
set_pmd(pmd, __pmd(_PAGE_TABLE + __pa(pte)))
......@@ -20,109 +19,11 @@ static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, struct page *p
* Allocate and free page tables.
*/
#if defined (CONFIG_X86_PAE)
/*
* We can't include <linux/slab.h> here, thus these uglinesses.
*/
struct kmem_cache_s;
extern struct kmem_cache_s *pae_pgd_cachep;
extern void *kmem_cache_alloc(struct kmem_cache_s *, int);
extern void kmem_cache_free(struct kmem_cache_s *, void *);
static inline pgd_t *pgd_alloc(struct mm_struct *mm)
{
int i;
pgd_t *pgd = kmem_cache_alloc(pae_pgd_cachep, GFP_KERNEL);
if (pgd) {
for (i = 0; i < USER_PTRS_PER_PGD; i++) {
unsigned long pmd = __get_free_page(GFP_KERNEL);
if (!pmd)
goto out_oom;
clear_page(pmd);
set_pgd(pgd + i, __pgd(1 + __pa(pmd)));
}
memcpy(pgd + USER_PTRS_PER_PGD,
swapper_pg_dir + USER_PTRS_PER_PGD,
(PTRS_PER_PGD - USER_PTRS_PER_PGD) * sizeof(pgd_t));
}
return pgd;
out_oom:
for (i--; i >= 0; i--)
free_page((unsigned long)__va(pgd_val(pgd[i])-1));
kmem_cache_free(pae_pgd_cachep, pgd);
return NULL;
}
#else
extern pgd_t *pgd_alloc(struct mm_struct *);
extern void pgd_free(pgd_t *pgd);
static inline pgd_t *pgd_alloc(struct mm_struct *mm)
{
pgd_t *pgd = (pgd_t *)__get_free_page(GFP_KERNEL);
if (pgd) {
memset(pgd, 0, USER_PTRS_PER_PGD * sizeof(pgd_t));
memcpy(pgd + USER_PTRS_PER_PGD,
swapper_pg_dir + USER_PTRS_PER_PGD,
(PTRS_PER_PGD - USER_PTRS_PER_PGD) * sizeof(pgd_t));
}
return pgd;
}
#endif /* CONFIG_X86_PAE */
static inline void pgd_free(pgd_t *pgd)
{
#if defined(CONFIG_X86_PAE)
int i;
for (i = 0; i < USER_PTRS_PER_PGD; i++)
free_page((unsigned long)__va(pgd_val(pgd[i])-1));
kmem_cache_free(pae_pgd_cachep, pgd);
#else
free_page((unsigned long)pgd);
#endif
}
static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm, unsigned long address)
{
int count = 0;
pte_t *pte;
do {
pte = (pte_t *) __get_free_page(GFP_KERNEL);
if (pte)
clear_page(pte);
else {
current->state = TASK_UNINTERRUPTIBLE;
schedule_timeout(HZ);
}
} while (!pte && (count++ < 10));
return pte;
}
static inline struct page *pte_alloc_one(struct mm_struct *mm, unsigned long address)
{
int count = 0;
struct page *pte;
do {
#if CONFIG_HIGHPTE
pte = alloc_pages(GFP_KERNEL | __GFP_HIGHMEM, 0);
#else
pte = alloc_pages(GFP_KERNEL, 0);
#endif
if (pte)
clear_highpage(pte);
else {
current->state = TASK_UNINTERRUPTIBLE;
schedule_timeout(HZ);
}
} while (!pte && (count++ < 10));
return pte;
}
extern pte_t *pte_alloc_one_kernel(struct mm_struct *, unsigned long);
extern struct page *pte_alloc_one(struct mm_struct *, unsigned long);
static inline void pte_free_kernel(pte_t *pte)
{
......@@ -144,85 +45,6 @@ static inline void pte_free(struct page *pte)
#define pmd_free(x) do { } while (0)
#define pgd_populate(mm, pmd, pte) BUG()
/*
* TLB flushing:
*
* - flush_tlb() flushes the current mm struct TLBs
* - flush_tlb_all() flushes all processes TLBs
* - flush_tlb_mm(mm) flushes the specified mm context TLB's
* - flush_tlb_page(vma, vmaddr) flushes one page
* - flush_tlb_range(vma, start, end) flushes a range of pages
* - flush_tlb_pgtables(mm, start, end) flushes a range of page tables
*
* ..but the i386 has somewhat limited tlb flushing capabilities,
* and page-granular flushes are available only on i486 and up.
*/
#ifndef CONFIG_SMP
#define flush_tlb() __flush_tlb()
#define flush_tlb_all() __flush_tlb_all()
#define local_flush_tlb() __flush_tlb()
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)
__flush_tlb_one(addr);
}
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();
}
#else
#include <asm/smp.h>
#define local_flush_tlb() \
__flush_tlb()
extern void flush_tlb_all(void);
extern void flush_tlb_current_task(void);
extern void flush_tlb_mm(struct mm_struct *);
extern void flush_tlb_page(struct vm_area_struct *, unsigned long);
#define flush_tlb() flush_tlb_current_task()
static inline void flush_tlb_range(struct vm_area_struct * vma, unsigned long start, unsigned long end)
{
flush_tlb_mm(vma->vm_mm);
}
#define TLBSTATE_OK 1
#define TLBSTATE_LAZY 2
struct tlb_state
{
struct mm_struct *active_mm;
int state;
char __cacheline_padding[24];
};
extern struct tlb_state cpu_tlbstate[NR_CPUS];
#endif
static inline void flush_tlb_pgtables(struct mm_struct *mm,
unsigned long start, unsigned long end)
{
/* i386 does not keep any page table caches in TLB */
}
#define check_pgt_cache() do { } while (0)
#endif /* _I386_PGALLOC_H */
......@@ -24,71 +24,6 @@
extern pgd_t swapper_pg_dir[1024];
extern void paging_init(void);
/* Caches aren't brain-dead on the intel. */
#define flush_cache_all() do { } while (0)
#define flush_cache_mm(mm) do { } while (0)
#define flush_cache_range(vma, start, end) do { } while (0)
#define flush_cache_page(vma, vmaddr) do { } while (0)
#define flush_page_to_ram(page) do { } while (0)
#define flush_dcache_page(page) do { } while (0)
#define flush_icache_range(start, end) do { } while (0)
#define flush_icache_page(vma,pg) do { } while (0)
#define flush_icache_user_range(vma,pg,adr,len) do { } while (0)
#define __flush_tlb() \
do { \
unsigned int tmpreg; \
\
__asm__ __volatile__( \
"movl %%cr3, %0; # flush TLB \n" \
"movl %0, %%cr3; \n" \
: "=r" (tmpreg) \
:: "memory"); \
} while (0)
/*
* Global pages have to be flushed a bit differently. Not a real
* performance problem because this does not happen often.
*/
#define __flush_tlb_global() \
do { \
unsigned int tmpreg; \
\
__asm__ __volatile__( \
"movl %1, %%cr4; # turn off PGE \n" \
"movl %%cr3, %0; # flush TLB \n" \
"movl %0, %%cr3; \n" \
"movl %2, %%cr4; # turn PGE back on \n" \
: "=&r" (tmpreg) \
: "r" (mmu_cr4_features & ~X86_CR4_PGE), \
"r" (mmu_cr4_features) \
: "memory"); \
} while (0)
extern unsigned long pgkern_mask;
/*
* Do not check the PGE bit unnecesserily if this is a PPro+ kernel.
*/
#ifdef CONFIG_X86_PGE
# define __flush_tlb_all() __flush_tlb_global()
#else
# define __flush_tlb_all() \
do { \
if (cpu_has_pge) \
__flush_tlb_global(); \
else \
__flush_tlb(); \
} while (0)
#endif
#ifndef CONFIG_X86_INVLPG
#define __flush_tlb_one(addr) __flush_tlb()
#else
#define __flush_tlb_one(addr) \
__asm__ __volatile__("invlpg %0": :"m" (*(char *) addr))
#endif
/*
* ZERO_PAGE is a global shared page that is always zero: used
* for zero-mapped memory areas etc..
......
#ifndef _I386_TLBFLUSH_H
#define _I386_TLBFLUSH_H
#include <linux/config.h>
#include <linux/mm.h>
#include <asm/processor.h>
#define __flush_tlb() \
do { \
unsigned int tmpreg; \
\
__asm__ __volatile__( \
"movl %%cr3, %0; # flush TLB \n" \
"movl %0, %%cr3; \n" \
: "=r" (tmpreg) \
:: "memory"); \
} while (0)
/*
* Global pages have to be flushed a bit differently. Not a real
* performance problem because this does not happen often.
*/
#define __flush_tlb_global() \
do { \
unsigned int tmpreg; \
\
__asm__ __volatile__( \
"movl %1, %%cr4; # turn off PGE \n" \
"movl %%cr3, %0; # flush TLB \n" \
"movl %0, %%cr3; \n" \
"movl %2, %%cr4; # turn PGE back on \n" \
: "=&r" (tmpreg) \
: "r" (mmu_cr4_features & ~X86_CR4_PGE), \
"r" (mmu_cr4_features) \
: "memory"); \
} while (0)
extern unsigned long pgkern_mask;
/*
* Do not check the PGE bit unnecesserily if this is a PPro+ kernel.
*/
#ifdef CONFIG_X86_PGE
# define __flush_tlb_all() __flush_tlb_global()
#else
# define __flush_tlb_all() \
do { \
if (cpu_has_pge) \
__flush_tlb_global(); \
else \
__flush_tlb(); \
} while (0)
#endif
#ifndef CONFIG_X86_INVLPG
#define __flush_tlb_one(addr) __flush_tlb()
#else
#define __flush_tlb_one(addr) \
__asm__ __volatile__("invlpg %0": :"m" (*(char *) addr))
#endif
/*
* TLB flushing:
*
* - flush_tlb() flushes the current mm struct TLBs
* - flush_tlb_all() flushes all processes TLBs
* - flush_tlb_mm(mm) flushes the specified mm context TLB's
* - flush_tlb_page(vma, vmaddr) flushes one page
* - flush_tlb_range(vma, start, end) flushes a range of pages
* - flush_tlb_pgtables(mm, start, end) flushes a range of page tables
*
* ..but the i386 has somewhat limited tlb flushing capabilities,
* and page-granular flushes are available only on i486 and up.
*/
#ifndef CONFIG_SMP
#define flush_tlb() __flush_tlb()
#define flush_tlb_all() __flush_tlb_all()
#define local_flush_tlb() __flush_tlb()
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)
__flush_tlb_one(addr);
}
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();
}
#else
#include <asm/smp.h>
#define local_flush_tlb() \
__flush_tlb()
extern void flush_tlb_all(void);
extern void flush_tlb_current_task(void);
extern void flush_tlb_mm(struct mm_struct *);
extern void flush_tlb_page(struct vm_area_struct *, unsigned long);
#define flush_tlb() flush_tlb_current_task()
static inline void flush_tlb_range(struct vm_area_struct * vma, unsigned long start, unsigned long end)
{
flush_tlb_mm(vma->vm_mm);
}
#define TLBSTATE_OK 1
#define TLBSTATE_LAZY 2
struct tlb_state
{
struct mm_struct *active_mm;
int state;
char __cacheline_padding[24];
};
extern struct tlb_state cpu_tlbstate[NR_CPUS];
#endif
static inline void flush_tlb_pgtables(struct mm_struct *mm,
unsigned long start, unsigned long end)
{
/* i386 does not keep any page table caches in TLB */
}
#endif /* _I386_TLBFLUSH_H */
......@@ -4,6 +4,7 @@
#include <linux/config.h>
#include <linux/bio.h>
#include <linux/fs.h>
#include <asm/cacheflush.h>
#ifdef CONFIG_HIGHMEM
......
......@@ -29,6 +29,8 @@
#include <asm/pgalloc.h>
#include <asm/uaccess.h>
#include <asm/mmu_context.h>
#include <asm/cacheflush.h>
#include <asm/tlbflush.h>
static kmem_cache_t *task_struct_cachep;
......
......@@ -11,6 +11,7 @@
#include <linux/kmod.h>
#include <linux/seq_file.h>
#include <linux/fs.h>
#include <asm/cacheflush.h>
/*
* Originally by Anonymous (as far as I know...)
......
......@@ -48,6 +48,7 @@
#include <asm/pgalloc.h>
#include <asm/uaccess.h>
#include <asm/tlb.h>
#include <asm/tlbflush.h>
unsigned long max_mapnr;
unsigned long num_physpages;
......
......@@ -17,6 +17,7 @@
#include <asm/uaccess.h>
#include <asm/pgalloc.h>
#include <asm/tlbflush.h>
/*
* WARNING: the debugging will use recursive algorithms so never enable this
......
......@@ -9,11 +9,13 @@
#include <linux/shm.h>
#include <linux/mman.h>
#include <linux/fs.h>
#include <linux/highmem.h>
#include <asm/uaccess.h>
#include <asm/pgalloc.h>
#include <asm/pgtable.h>
#include <linux/highmem.h>
#include <asm/cacheflush.h>
#include <asm/tlbflush.h>
static inline void change_pte_range(pmd_t * pmd, unsigned long address,
unsigned long size, pgprot_t newprot)
......
......@@ -11,9 +11,12 @@
#include <linux/mman.h>
#include <linux/swap.h>
#include <linux/fs.h>
#include <linux/highmem.h>
#include <asm/uaccess.h>
#include <asm/pgalloc.h>
#include <asm/cacheflush.h>
#include <asm/tlbflush.h>
extern int vm_enough_memory(long pages);
......
......@@ -14,6 +14,7 @@
#include <asm/pgtable.h>
#include <asm/pgalloc.h>
#include <asm/tlbflush.h>
/*
* Called with mm->page_table_lock held to protect against other
......
......@@ -15,6 +15,7 @@
#include <asm/uaccess.h>
#include <asm/pgalloc.h>
#include <asm/tlbflush.h>
rwlock_t vmlist_lock = RW_LOCK_UNLOCKED;
struct vm_struct * vmlist;
......
......@@ -24,6 +24,7 @@
#include <linux/compiler.h>
#include <asm/pgalloc.h>
#include <asm/tlbflush.h>
/*
* The "priority" of VM scanning is how much of the queues we
......
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