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Update MIPS to use the 4-level pagetable code thereby getting rid of

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the compacrapability headers.

Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
This commit is contained in:
Ralf Baechle
2005-02-10 12:19:59 +00:00
parent 57f0060b8a
commit c6e8b58771
17 changed files with 179 additions and 101 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
arch/mips/mm/c-r3k.c
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@ -221,12 +221,14 @@ static inline unsigned long get_phys_page (unsigned long addr,
struct mm_struct *mm)
{
pgd_t *pgd;
pud_t *pud;
pmd_t *pmd;
pte_t *pte;
unsigned long physpage;
pgd = pgd_offset(mm, addr);
pmd = pmd_offset(pgd, addr);
pud = pud_offset(pgd, addr);
pmd = pmd_offset(pud, addr);
pte = pte_offset(pmd, addr);
if ((physpage = pte_val(*pte)) & _PAGE_VALID)

4
arch/mips/mm/c-r4k.c
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@ -372,12 +372,14 @@ static inline void local_r4k_flush_cache_page(void *args)
int exec = vma->vm_flags & VM_EXEC;
struct mm_struct *mm = vma->vm_mm;
pgd_t *pgdp;
pud_t *pudp;
pmd_t *pmdp;
pte_t *ptep;
page &= PAGE_MASK;
pgdp = pgd_offset(mm, page);
pmdp = pmd_offset(pgdp, page);
pudp = pud_offset(pgdp, page);
pmdp = pmd_offset(pudp, page);
ptep = pte_offset(pmdp, page);
/*

4
arch/mips/mm/c-tx39.c
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@ -183,6 +183,7 @@ static void tx39_flush_cache_page(struct vm_area_struct *vma, unsigned long page
int exec = vma->vm_flags & VM_EXEC;
struct mm_struct *mm = vma->vm_mm;
pgd_t *pgdp;
pud_t *pudp;
pmd_t *pmdp;
pte_t *ptep;
@ -195,7 +196,8 @@ static void tx39_flush_cache_page(struct vm_area_struct *vma, unsigned long page
page &= PAGE_MASK;
pgdp = pgd_offset(mm, page);
pmdp = pmd_offset(pgdp, page);
pudp = pud_offset(pgdp, page);
pmdp = pmd_offset(pudp, page);
ptep = pte_offset(pmdp, page);
/*

10
arch/mips/mm/fault.c
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@ -212,6 +212,7 @@ vmalloc_fault:
*/
int offset = __pgd_offset(address);
pgd_t *pgd, *pgd_k;
pud_t *pud, *pud_k;
pmd_t *pmd, *pmd_k;
pte_t *pte_k;
@ -222,8 +223,13 @@ vmalloc_fault:
goto no_context;
set_pgd(pgd, *pgd_k);
pmd = pmd_offset(pgd, address);
pmd_k = pmd_offset(pgd_k, address);
pud = pud_offset(pgd, address);
pud_k = pud_offset(pgd_k, address);
if (!pud_present(*pud_k))
goto no_context;
pmd = pmd_offset(pud, address);
pmd_k = pmd_offset(pud_k, address);
if (!pmd_present(*pmd_k))
goto no_context;
set_pmd(pmd, *pmd_k);

28
arch/mips/mm/init.c
View File

@ -83,7 +83,7 @@ pte_t *kmap_pte;
pgprot_t kmap_prot;
#define kmap_get_fixmap_pte(vaddr) \
pte_offset_kernel(pmd_offset(pgd_offset_k(vaddr), (vaddr)), (vaddr))
pte_offset_kernel(pmd_offset(pud_offset(pgd_offset_k(vaddr), (vaddr)), (vaddr)), (vaddr))
static void __init kmap_init(void)
{
@ -101,26 +101,32 @@ void __init fixrange_init(unsigned long start, unsigned long end,
pgd_t *pgd_base)
{
pgd_t *pgd;
pud_t *pud;
pmd_t *pmd;
pte_t *pte;
int i, j;
int i, j, k;
unsigned long vaddr;
vaddr = start;
i = __pgd_offset(vaddr);
j = __pmd_offset(vaddr);
j = __pud_offset(vaddr);
k = __pmd_offset(vaddr);
pgd = pgd_base + i;
for ( ; (i < PTRS_PER_PGD) && (vaddr != end); pgd++, i++) {
pmd = (pmd_t *)pgd;
for (; (j < PTRS_PER_PMD) && (vaddr != end); pmd++, j++) {
if (pmd_none(*pmd)) {
pte = (pte_t *) alloc_bootmem_low_pages(PAGE_SIZE);
set_pmd(pmd, __pmd(pte));
if (pte != pte_offset_kernel(pmd, 0))
BUG();
pud = (pud_t *)pgd;
for ( ; (j < PTRS_PER_PUD) && (vaddr != end); pud++, j++) {
pmd = (pmd_t *)pud;
for (; (k < PTRS_PER_PMD) && (vaddr != end); pmd++, k++) {
if (pmd_none(*pmd)) {
pte = (pte_t *) alloc_bootmem_low_pages(PAGE_SIZE);
set_pmd(pmd, __pmd(pte));
if (pte != pte_offset_kernel(pmd, 0))
BUG();
}
vaddr += PMD_SIZE;
}
vaddr += PMD_SIZE;
k = 0;
}
j = 0;
}

15
arch/mips/mm/ioremap.c
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@ -79,9 +79,14 @@ static int remap_area_pages(unsigned long address, phys_t phys_addr,
BUG();
spin_lock(&init_mm.page_table_lock);
do {
pud_t *pud;
pmd_t *pmd;
pmd = pmd_alloc(&init_mm, dir, address);
error = -ENOMEM;
pud = pud_alloc(&init_mm, dir, address);
if (!pud)
break;
pmd = pmd_alloc(&init_mm, pud, address);
if (!pmd)
break;
if (remap_area_pmd(pmd, address, end - address,
@ -141,7 +146,7 @@ void * __ioremap(phys_t phys_addr, phys_t size, unsigned long flags)
*/
if (IS_LOW512(phys_addr) && IS_LOW512(last_addr) &&
flags == _CACHE_UNCACHED)
return (void *) KSEG1ADDR(phys_addr);
return (void *) CKSEG1ADDR(phys_addr);
/*
* Don't allow anybody to remap normal RAM that we're using..
@ -180,7 +185,7 @@ void * __ioremap(phys_t phys_addr, phys_t size, unsigned long flags)
return (void *) (offset + (char *)addr);
}
#define IS_KSEG1(addr) (((unsigned long)(addr) & ~0x1fffffffUL) == KSEG1)
#define IS_KSEG1(addr) (((unsigned long)(addr) & ~0x1fffffffUL) == CKSEG1)
void __iounmap(volatile void __iomem *addr)
{
@ -190,10 +195,8 @@ void __iounmap(volatile void __iomem *addr)
return;
p = remove_vm_area((void *) (PAGE_MASK & (unsigned long __force) addr));
if (!p) {
if (!p)
printk(KERN_ERR "iounmap: bad address %p\n", addr);
return;
}
kfree(p);
}

4
arch/mips/mm/pgtable-32.c
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@ -35,6 +35,7 @@ void __init pagetable_init(void)
#ifdef CONFIG_HIGHMEM
unsigned long vaddr;
pgd_t *pgd, *pgd_base;
pud_t *pud;
pmd_t *pmd;
pte_t *pte;
#endif
@ -60,7 +61,8 @@ void __init pagetable_init(void)
fixrange_init(vaddr, vaddr + PAGE_SIZE*LAST_PKMAP, pgd_base);
pgd = swapper_pg_dir + __pgd_offset(vaddr);
pmd = pmd_offset(pgd, vaddr);
pud = pud_offset(pgd, vaddr);
pmd = pmd_offset(pud, vaddr);
pte = pte_offset_kernel(pmd, vaddr);
pkmap_page_table = pte;
#endif

4
arch/mips/mm/tlb-andes.c
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@ -195,6 +195,7 @@ void __update_tlb(struct vm_area_struct * vma, unsigned long address, pte_t pte)
{
unsigned long flags;
pgd_t *pgdp;
pud_t *pudp;
pmd_t *pmdp;
pte_t *ptep;
int idx, pid;
@ -220,7 +221,8 @@ void __update_tlb(struct vm_area_struct * vma, unsigned long address, pte_t pte)
write_c0_entryhi(address | (pid));
pgdp = pgd_offset(vma->vm_mm, address);
tlb_probe();
pmdp = pmd_offset(pgdp, address);
pudp = pud_offset(pgdp, address);
pmdp = pmd_offset(pudp, address);
idx = read_c0_index();
ptep = pte_offset_map(pmdp, address);
write_c0_entrylo0(pte_val(*ptep++) >> 6);

4
arch/mips/mm/tlb-r4k.c
View File

@ -227,6 +227,7 @@ void __update_tlb(struct vm_area_struct * vma, unsigned long address, pte_t pte)
{
unsigned long flags;
pgd_t *pgdp;
pud_t *pudp;
pmd_t *pmdp;
pte_t *ptep;
int idx, pid;
@ -246,7 +247,8 @@ void __update_tlb(struct vm_area_struct * vma, unsigned long address, pte_t pte)
mtc0_tlbw_hazard();
tlb_probe();
BARRIER;
pmdp = pmd_offset(pgdp, address);
pudp = pud_offset(pgdp, address);
pmdp = pmd_offset(pudp, address);
idx = read_c0_index();
ptep = pte_offset_map(pmdp, address);