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authorBenjamin Herrenschmidt <benh@kernel.crashing.org>2009-07-22 15:44:28 +1000
committerLinus Torvalds <torvalds@linux-foundation.org>2009-07-27 12:10:38 -0700
commit9e1b32caa525cb236e80e9c671e179bcecccc657 (patch)
tree8a1f0abf5291b23047cfdf099d5cfc96cc9d9253 /arch/sparc
parent4be3bd7849165e7efa6b0b35a23d6a3598d97465 (diff)
downloadop-kernel-dev-9e1b32caa525cb236e80e9c671e179bcecccc657.zip
op-kernel-dev-9e1b32caa525cb236e80e9c671e179bcecccc657.tar.gz
mm: Pass virtual address to [__]p{te,ud,md}_free_tlb()
mm: Pass virtual address to [__]p{te,ud,md}_free_tlb() Upcoming paches to support the new 64-bit "BookE" powerpc architecture will need to have the virtual address corresponding to PTE page when freeing it, due to the way the HW table walker works. Basically, the TLB can be loaded with "large" pages that cover the whole virtual space (well, sort-of, half of it actually) represented by a PTE page, and which contain an "indirect" bit indicating that this TLB entry RPN points to an array of PTEs from which the TLB can then create direct entries. Thus, in order to invalidate those when PTE pages are deleted, we need the virtual address to pass to tlbilx or tlbivax instructions. The old trick of sticking it somewhere in the PTE page struct page sucks too much, the address is almost readily available in all call sites and almost everybody implemets these as macros, so we may as well add the argument everywhere. I added it to the pmd and pud variants for consistency. Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org> Acked-by: David Howells <dhowells@redhat.com> [MN10300 & FRV] Acked-by: Nick Piggin <npiggin@suse.de> Acked-by: Martin Schwidefsky <schwidefsky@de.ibm.com> [s390] Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'arch/sparc')
-rw-r--r--arch/sparc/include/asm/pgalloc_32.h8
-rw-r--r--arch/sparc/include/asm/tlb_64.h6
2 files changed, 7 insertions, 7 deletions
diff --git a/arch/sparc/include/asm/pgalloc_32.h b/arch/sparc/include/asm/pgalloc_32.h
index 681582d..ca2b344 100644
--- a/arch/sparc/include/asm/pgalloc_32.h
+++ b/arch/sparc/include/asm/pgalloc_32.h
@@ -44,8 +44,8 @@ BTFIXUPDEF_CALL(pmd_t *, pmd_alloc_one, struct mm_struct *, unsigned long)
BTFIXUPDEF_CALL(void, free_pmd_fast, pmd_t *)
#define free_pmd_fast(pmd) BTFIXUP_CALL(free_pmd_fast)(pmd)
-#define pmd_free(mm, pmd) free_pmd_fast(pmd)
-#define __pmd_free_tlb(tlb, pmd) pmd_free((tlb)->mm, pmd)
+#define pmd_free(mm, pmd) free_pmd_fast(pmd)
+#define __pmd_free_tlb(tlb, pmd, addr) pmd_free((tlb)->mm, pmd)
BTFIXUPDEF_CALL(void, pmd_populate, pmd_t *, struct page *)
#define pmd_populate(MM, PMD, PTE) BTFIXUP_CALL(pmd_populate)(PMD, PTE)
@@ -62,7 +62,7 @@ BTFIXUPDEF_CALL(void, free_pte_fast, pte_t *)
#define pte_free_kernel(mm, pte) BTFIXUP_CALL(free_pte_fast)(pte)
BTFIXUPDEF_CALL(void, pte_free, pgtable_t )
-#define pte_free(mm, pte) BTFIXUP_CALL(pte_free)(pte)
-#define __pte_free_tlb(tlb, pte) pte_free((tlb)->mm, pte)
+#define pte_free(mm, pte) BTFIXUP_CALL(pte_free)(pte)
+#define __pte_free_tlb(tlb, pte, addr) pte_free((tlb)->mm, pte)
#endif /* _SPARC_PGALLOC_H */
diff --git a/arch/sparc/include/asm/tlb_64.h b/arch/sparc/include/asm/tlb_64.h
index ee38e73..dca406b 100644
--- a/arch/sparc/include/asm/tlb_64.h
+++ b/arch/sparc/include/asm/tlb_64.h
@@ -100,9 +100,9 @@ static inline void tlb_remove_page(struct mmu_gather *mp, struct page *page)
}
#define tlb_remove_tlb_entry(mp,ptep,addr) do { } while (0)
-#define pte_free_tlb(mp, ptepage) pte_free((mp)->mm, ptepage)
-#define pmd_free_tlb(mp, pmdp) pmd_free((mp)->mm, pmdp)
-#define pud_free_tlb(tlb,pudp) __pud_free_tlb(tlb,pudp)
+#define pte_free_tlb(mp, ptepage, addr) pte_free((mp)->mm, ptepage)
+#define pmd_free_tlb(mp, pmdp, addr) pmd_free((mp)->mm, pmdp)
+#define pud_free_tlb(tlb,pudp, addr) __pud_free_tlb(tlb,pudp,addr)
#define tlb_migrate_finish(mm) do { } while (0)
#define tlb_start_vma(tlb, vma) do { } while (0)
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