From: Dave Hansen <dave@linux.vnet.ibm.com>
To: linux-arch@vger.kernel.org
Cc: linux-kernel@vger.kernel.org, Dave Hansen <dave@linux.vnet.ibm.com>
Subject: [RFC][PATCH 19/35] x86: create ptemap.h
Date: Fri, 01 May 2009 07:42:31 -0700 [thread overview]
Message-ID: <20090501144231.7851A761@kernel> (raw)
In-Reply-To: <20090501144201.D31EF417@kernel>
Signed-off-by: Dave Hansen <dave@linux.vnet.ibm.com>
---
linux-2.6.git-dave/arch/x86/include/asm/pgtable_32.h | 17 ---------
linux-2.6.git-dave/arch/x86/include/asm/pgtable_64.h | 6 ---
linux-2.6.git-dave/arch/x86/include/asm/ptemap.h | 34 +++++++++++++++++++
3 files changed, 36 insertions(+), 21 deletions(-)
diff -puN arch/x86/include/asm/pgtable_32.h~x86-ptemaph arch/x86/include/asm/pgtable_32.h
--- linux-2.6.git/arch/x86/include/asm/pgtable_32.h~x86-ptemaph 2009-04-30 15:11:03.000000000 -0700
+++ linux-2.6.git-dave/arch/x86/include/asm/pgtable_32.h 2009-04-30 15:11:03.000000000 -0700
@@ -48,22 +48,7 @@ extern void set_pmd_pfn(unsigned long, u
# include <asm/pgtable-2level.h>
#endif
-#if defined(CONFIG_HIGHPTE)
-#define pte_offset_map(dir, address) \
- ((pte_t *)kmap_atomic_pte(pmd_page(*(dir)), KM_PTE0) + \
- pte_index((address)))
-#define pte_offset_map_nested(dir, address) \
- ((pte_t *)kmap_atomic_pte(pmd_page(*(dir)), KM_PTE1) + \
- pte_index((address)))
-#define pte_unmap(pte) kunmap_atomic((pte), KM_PTE0)
-#define pte_unmap_nested(pte) kunmap_atomic((pte), KM_PTE1)
-#else
-#define pte_offset_map(dir, address) \
- ((pte_t *)page_address(pmd_page(*(dir))) + pte_index((address)))
-#define pte_offset_map_nested(dir, address) pte_offset_map((dir), (address))
-#define pte_unmap(pte) do { } while (0)
-#define pte_unmap_nested(pte) do { } while (0)
-#endif
+#include <asm/ptemap.h>
/* Clear a kernel PTE and flush it from the TLB */
#define kpte_clear_flush(ptep, vaddr) \
diff -puN arch/x86/include/asm/pgtable_64.h~x86-ptemaph arch/x86/include/asm/pgtable_64.h
--- linux-2.6.git/arch/x86/include/asm/pgtable_64.h~x86-ptemaph 2009-04-30 15:11:03.000000000 -0700
+++ linux-2.6.git-dave/arch/x86/include/asm/pgtable_64.h 2009-04-30 15:11:03.000000000 -0700
@@ -127,11 +127,7 @@ static inline int pgd_large(pgd_t pgd) {
/* PTE - Level 1 access. */
-/* x86-64 always has all page tables mapped. */
-#define pte_offset_map(dir, address) pte_offset_kernel((dir), (address))
-#define pte_offset_map_nested(dir, address) pte_offset_kernel((dir), (address))
-#define pte_unmap(pte) /* NOP */
-#define pte_unmap_nested(pte) /* NOP */
+#include <asm/ptemap.h>
#define update_mmu_cache(vma, address, pte) do { } while (0)
diff -puN /dev/null arch/x86/include/asm/ptemap.h
--- /dev/null 2008-09-02 09:40:19.000000000 -0700
+++ linux-2.6.git-dave/arch/x86/include/asm/ptemap.h 2009-04-30 15:11:03.000000000 -0700
@@ -0,0 +1,34 @@
+#ifndef _X86_ASM_PTEMAP_H
+#define _X86_ASM_PTEMAP_H
+
+#ifdef CONFIG_X86_32
+
+#if defined(CONFIG_HIGHPTE)
+
+#define pte_offset_map(dir, address) \
+ ((pte_t *)kmap_atomic_pte(pmd_page(*(dir)), KM_PTE0) + \
+ pte_index((address)))
+#define pte_offset_map_nested(dir, address) \
+ ((pte_t *)kmap_atomic_pte(pmd_page(*(dir)), KM_PTE1) + \
+ pte_index((address)))
+#define pte_unmap(pte) kunmap_atomic((pte), KM_PTE0)
+#define pte_unmap_nested(pte) kunmap_atomic((pte), KM_PTE1)
+#else
+#define pte_offset_map(dir, address) \
+ ((pte_t *)page_address(pmd_page(*(dir))) + pte_index((address)))
+#define pte_offset_map_nested(dir, address) pte_offset_map((dir), (address))
+#define pte_unmap(pte) do { } while (0)
+#define pte_unmap_nested(pte) do { } while (0)
+#endif
+
+#else /* x86-64 */
+
+/* x86-64 always has all page tables mapped. */
+#define pte_offset_map(dir, address) pte_offset_kernel((dir), (address))
+#define pte_offset_map_nested(dir, address) pte_offset_kernel((dir), (address))
+#define pte_unmap(pte) /* NOP */
+#define pte_unmap_nested(pte) /* NOP */
+
+#endif
+
+#endif /* _X86_ASM_PTEMAP_H */
_
next prev parent reply other threads:[~2009-05-01 14:58 UTC|newest]
Thread overview: 51+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-01 14:42 [RFC][PATCH 00/35] consolidate pte mapping functions across all architectures Dave Hansen
2009-05-01 14:42 ` [RFC][PATCH 01/35] rename arm and frv's __pte_index() Dave Hansen
2009-05-01 14:42 ` [RFC][PATCH 02/35] rework sparc pte functions to be consistent with other arches Dave Hansen
2009-05-01 14:42 ` [RFC][PATCH 03/35] alpha: create ptemap.h Dave Hansen
2009-05-01 14:42 ` [RFC][PATCH 04/35] arm: " Dave Hansen
2009-05-01 14:42 ` [RFC][PATCH 05/35] avr32: " Dave Hansen
2009-05-01 14:42 ` [RFC][PATCH 06/35] cris: " Dave Hansen
2009-05-01 14:42 ` [RFC][PATCH 07/35] frv: " Dave Hansen
2009-05-01 14:42 ` [RFC][PATCH 08/35] ia64: " Dave Hansen
2009-05-01 14:42 ` [RFC][PATCH 09/35] m32r: " Dave Hansen
2009-05-01 14:42 ` [RFC][PATCH 10/35] m68k: " Dave Hansen
2009-05-01 14:42 ` [RFC][PATCH 11/35] mips: " Dave Hansen
2009-05-01 14:42 ` [RFC][PATCH 12/35] mn10300: " Dave Hansen
2009-05-01 14:42 ` [RFC][PATCH 13/35] parisc: " Dave Hansen
2009-05-02 14:29 ` Kyle McMartin
2009-05-02 21:45 ` Dave Hansen
2009-05-01 14:42 ` [RFC][PATCH 14/35] powerpc: " Dave Hansen
2009-05-01 14:42 ` [RFC][PATCH 15/35] s390: " Dave Hansen
2009-05-01 14:42 ` [RFC][PATCH 16/35] sh: " Dave Hansen
2009-05-01 14:42 ` [RFC][PATCH 17/35] sparc: " Dave Hansen
2009-05-02 7:02 ` Daniel K.
2009-05-02 21:42 ` Dave Hansen
2009-05-01 14:42 ` [RFC][PATCH 18/35] um: " Dave Hansen
2009-05-01 14:42 ` Dave Hansen [this message]
2009-05-01 14:42 ` [RFC][PATCH 20/35] xtensa: " Dave Hansen
2009-05-01 14:42 ` [RFC][PATCH 21/35] create linux/ptemap.h for arch-independent pte mapping funcs Dave Hansen
2009-05-01 14:42 ` [RFC][PATCH 22/35] include linux/ptemap.h at all use sites Dave Hansen
2009-05-01 14:42 ` [RFC][PATCH 23/35] factor x86 pte mapping code Dave Hansen
2009-05-01 14:42 ` [RFC][PATCH 24/35] arm: use pte_offset_kernel() as base for pte_offset_map*() Dave Hansen
2009-05-01 14:42 ` [RFC][PATCH 25/35] cris: " Dave Hansen
2009-05-01 14:42 ` [RFC][PATCH 26/35] frv: " Dave Hansen
2009-05-01 14:42 ` [RFC][PATCH 27/35] m32r: " Dave Hansen
2009-05-01 14:42 ` [RFC][PATCH 28/35] mips: " Dave Hansen
2009-05-01 14:42 ` [RFC][PATCH 29/35] um: " Dave Hansen
2009-05-01 14:42 ` [RFC][PATCH 30/35] m68k: " Dave Hansen
2009-05-01 14:42 ` [RFC][PATCH 31/35] mn10300: " Dave Hansen
2009-05-01 14:42 ` [RFC][PATCH 32/35] Move users to asm-generic/ptemap.h Dave Hansen
2009-05-01 17:43 ` Christoph Hellwig
2009-05-01 18:08 ` Dave Hansen
2009-05-01 14:42 ` [RFC][PATCH 33/35] asm-generic/ptemap.h for HIGHPTE users Dave Hansen
2009-05-01 17:51 ` Luck, Tony
2009-05-01 18:10 ` Dave Hansen
2009-05-01 18:29 ` Luck, Tony
2009-05-01 18:32 ` Dave Hansen
2009-05-01 14:42 ` [RFC][PATCH 34/35] powerpc use generic ptemap.h Dave Hansen
2009-05-01 17:46 ` Christoph Hellwig
2009-05-01 17:58 ` Dave Hansen
2009-05-17 3:55 ` Benjamin Herrenschmidt
2009-05-01 14:42 ` [RFC][PATCH 35/35] remove old ptemap.h includes Dave Hansen
2009-05-01 14:59 ` Ingo Molnar
2009-05-01 15:02 ` Dave Hansen
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