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[PATCH] ppc64: update to use the new 4L headers

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This patch converts ppc64 to use the generic pgtable-nopud.h instead of the
"fixup" header.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
This commit is contained in:
Benjamin Herrenschmidt
2005-05-01 08:58:44 -07:00
committed by Linus Torvalds
parent 0339ad77c4
commit 58366af586
4 changed files with 147 additions and 139 deletions
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include/asm-ppc64/pgalloc.h
+1 -1
View File
@@ -27,7 +27,7 @@ pgd_free(pgd_t *pgd)
kmem_cache_free(zero_cache, pgd);
}
#define pgd_populate(MM, PGD, PMD) pgd_set(PGD, PMD)
#define pud_populate(MM, PUD, PMD) pud_set(PUD, PMD)
static inline pmd_t *
pmd_alloc_one(struct mm_struct *mm, unsigned long addr)
include/asm-ppc64/pgtable.h
+23 -18
View File
@@ -1,8 +1,6 @@
#ifndef _PPC64_PGTABLE_H
#define _PPC64_PGTABLE_H
#include <asm-generic/4level-fixup.h>
/*
* This file contains the functions and defines necessary to modify and use
* the ppc64 hashed page table.
@@ -17,6 +15,8 @@
#include <asm/tlbflush.h>
#endif /* __ASSEMBLY__ */
#include <asm-generic/pgtable-nopud.h>
/* PMD_SHIFT determines what a second-level page table entry can map */
#define PMD_SHIFT (PAGE_SHIFT + PAGE_SHIFT - 3)
#define PMD_SIZE (1UL << PMD_SHIFT)
@@ -228,12 +228,13 @@ void hugetlb_mm_free_pgd(struct mm_struct *mm);
#define pmd_page_kernel(pmd) \
(__bpn_to_ba(pmd_val(pmd) >> PMD_TO_PTEPAGE_SHIFT))
#define pmd_page(pmd) virt_to_page(pmd_page_kernel(pmd))
#define pgd_set(pgdp, pmdp) (pgd_val(*(pgdp)) = (__ba_to_bpn(pmdp)))
#define pgd_none(pgd) (!pgd_val(pgd))
#define pgd_bad(pgd) ((pgd_val(pgd)) == 0)
#define pgd_present(pgd) (pgd_val(pgd) != 0UL)
#define pgd_clear(pgdp) (pgd_val(*(pgdp)) = 0UL)
#define pgd_page(pgd) (__bpn_to_ba(pgd_val(pgd)))
#define pud_set(pudp, pmdp) (pud_val(*(pudp)) = (__ba_to_bpn(pmdp)))
#define pud_none(pud) (!pud_val(pud))
#define pud_bad(pud) ((pud_val(pud)) == 0UL)
#define pud_present(pud) (pud_val(pud) != 0UL)
#define pud_clear(pudp) (pud_val(*(pudp)) = 0UL)
#define pud_page(pud) (__bpn_to_ba(pud_val(pud)))
/*
* Find an entry in a page-table-directory. We combine the address region
@@ -245,12 +246,13 @@ void hugetlb_mm_free_pgd(struct mm_struct *mm);
#define pgd_offset(mm, address) ((mm)->pgd + pgd_index(address))
/* Find an entry in the second-level page table.. */
#define pmd_offset(dir,addr) \
((pmd_t *) pgd_page(*(dir)) + (((addr) >> PMD_SHIFT) & (PTRS_PER_PMD - 1)))
#define pmd_offset(pudp,addr) \
((pmd_t *) pud_page(*(pudp)) + (((addr) >> PMD_SHIFT) & (PTRS_PER_PMD - 1)))
/* Find an entry in the third-level page table.. */
#define pte_offset_kernel(dir,addr) \
((pte_t *) pmd_page_kernel(*(dir)) + (((addr) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)))
((pte_t *) pmd_page_kernel(*(dir)) \
+ (((addr) >> PAGE_SHIFT) & (PTRS_PER_PTE - 1)))
#define pte_offset_map(dir,addr) pte_offset_kernel((dir), (addr))
#define pte_offset_map_nested(dir,addr) pte_offset_kernel((dir), (addr))
@@ -582,19 +584,22 @@ extern long native_hpte_insert(unsigned long hpte_group, unsigned long va,
static inline pte_t *find_linux_pte(pgd_t *pgdir, unsigned long ea)
{
pgd_t *pg;
pud_t *pu;
pmd_t *pm;
pte_t *pt = NULL;
pte_t pte;
pg = pgdir + pgd_index(ea);
if (!pgd_none(*pg)) {
pm = pmd_offset(pg, ea);
if (pmd_present(*pm)) {
pt = pte_offset_kernel(pm, ea);
pte = *pt;
if (!pte_present(pte))
pt = NULL;
pu = pud_offset(pg, ea);
if (!pud_none(*pu)) {
pm = pmd_offset(pu, ea);
if (pmd_present(*pm)) {
pt = pte_offset_kernel(pm, ea);
pte = *pt;
if (!pte_present(pte))
pt = NULL;
}
}
}