From: Paul Davies <pauld@gelato.unsw.edu.au>
To: linux-mm@kvack.org
Cc: Paul Davies <pauld@gelato.unsw.edu.au>
Subject: [PATCH 2/5] Abstract pgtable
Date: Sat, 13 Jan 2007 13:48:25 +1100 [thread overview]
Message-ID: <20070113024825.29682.27750.sendpatchset@weill.orchestra.cse.unsw.EDU.AU> (raw)
In-Reply-To: <20070113024540.29682.27024.sendpatchset@weill.orchestra.cse.unsw.EDU.AU>
PATCH IA64 02
* Create file page-default.h and move implementation dependent code from
page.h into it.
* Create pgtable-default.h and put implementation dependent code from
pgtable.h into it.
Signed-Off-By: Paul Davies <pauld@gelato.unsw.edu.au>
---
page-default.h | 38 +++++++++++++++++++++++++++++++++++++
page.h | 20 ++++---------------
pgtable-default.h | 54 +++++++++++++++++++++++++++++++++++++++++++++++++++++
pgtable.h | 55 +++++-------------------------------------------------
4 files changed, 103 insertions(+), 64 deletions(-)
Index: linux-2.6.20-rc1/include/asm-ia64/page-default.h
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.20-rc1/include/asm-ia64/page-default.h 2006-12-23 20:24:57.787909000 +1100
@@ -0,0 +1,38 @@
+#ifndef _ASM_IA64_PAGE_DEFAULT_H
+#define _ASM_IA64_PAGE_DEFAULT_H
+
+#ifdef __KERNEL__
+
+#ifdef STRICT_MM_TYPECHECKS
+ /*
+ * These are used to make use of C type-checking..
+ */
+ typedef struct { unsigned long pmd; } pmd_t;
+#ifdef CONFIG_PGTABLE_4
+ typedef struct { unsigned long pud; } pud_t;
+#endif
+ typedef struct { unsigned long pgd; } pgd_t;
+
+# define pmd_val(x) ((x).pmd)
+#ifdef CONFIG_PGTABLE_4
+# define pud_val(x) ((x).pud)
+#endif
+# define pgd_val(x) ((x).pgd)
+
+#else /* !STRICT_MM_TYPECHECKS */
+ /*
+ * .. while these make it easier on the compiler
+ */
+# ifndef __ASSEMBLY__
+ typedef unsigned long pmd_t;
+ typedef unsigned long pgd_t;
+# endif
+
+# define pmd_val(x) (x)
+# define pgd_val(x) (x)
+
+# define __pgd(x) (x)
+#endif /* !STRICT_MM_TYPECHECKS */
+
+#endif /* __KERNEL__ */
+#endif /* _ASM_IA64_PAGE_DEFAULT_H */
Index: linux-2.6.20-rc1/include/asm-ia64/page.h
===================================================================
--- linux-2.6.20-rc1.orig/include/asm-ia64/page.h 2006-12-23 20:24:51.003909000 +1100
+++ linux-2.6.20-rc1/include/asm-ia64/page.h 2006-12-23 20:25:39.879909000 +1100
@@ -180,19 +180,9 @@
* These are used to make use of C type-checking..
*/
typedef struct { unsigned long pte; } pte_t;
- typedef struct { unsigned long pmd; } pmd_t;
-#ifdef CONFIG_PGTABLE_4
- typedef struct { unsigned long pud; } pud_t;
-#endif
- typedef struct { unsigned long pgd; } pgd_t;
typedef struct { unsigned long pgprot; } pgprot_t;
# define pte_val(x) ((x).pte)
-# define pmd_val(x) ((x).pmd)
-#ifdef CONFIG_PGTABLE_4
-# define pud_val(x) ((x).pud)
-#endif
-# define pgd_val(x) ((x).pgd)
# define pgprot_val(x) ((x).pgprot)
# define __pte(x) ((pte_t) { (x) } )
@@ -204,18 +194,13 @@
*/
# ifndef __ASSEMBLY__
typedef unsigned long pte_t;
- typedef unsigned long pmd_t;
- typedef unsigned long pgd_t;
typedef unsigned long pgprot_t;
# endif
# define pte_val(x) (x)
-# define pmd_val(x) (x)
-# define pgd_val(x) (x)
# define pgprot_val(x) (x)
# define __pte(x) (x)
-# define __pgd(x) (x)
# define __pgprot(x) (x)
#endif /* !STRICT_MM_TYPECHECKS */
@@ -227,4 +212,9 @@
? VM_EXEC : 0))
# endif /* __KERNEL__ */
+
+#ifdef CONFIG_PT_DEFAULT
+#include <asm/page-default.h>
+#endif
+
#endif /* _ASM_IA64_PAGE_H */
Index: linux-2.6.20-rc1/include/asm-ia64/pgtable-default.h
===================================================================
--- /dev/null 1970-01-01 00:00:00.000000000 +0000
+++ linux-2.6.20-rc1/include/asm-ia64/pgtable-default.h 2006-12-23 20:24:57.791909000 +1100
@@ -0,0 +1,54 @@
+#ifndef _ASM_IA64_PGTABLE_DEFAULT_H
+#define _ASM_IA64_PGTABLE_DEFAULT_H
+
+/*
+ * How many pointers will a page table level hold expressed in shift
+ */
+#define PTRS_PER_PTD_SHIFT (PAGE_SHIFT-3)
+
+/*
+ * Definitions for fourth level:
+ */
+#define PTRS_PER_PTE (__IA64_UL(1) << (PTRS_PER_PTD_SHIFT))
+
+/*
+ * Definitions for third level:
+ *
+ * PMD_SHIFT determines the size of the area a third-level page table
+ * can map.
+ */
+#define PMD_SHIFT (PAGE_SHIFT + (PTRS_PER_PTD_SHIFT))
+#define PMD_SIZE (1UL << PMD_SHIFT)
+#define PMD_MASK (~(PMD_SIZE-1))
+#define PTRS_PER_PMD (1UL << (PTRS_PER_PTD_SHIFT))
+
+#ifdef CONFIG_PGTABLE_4
+/*
+ * Definitions for second level:
+ *
+ * PUD_SHIFT determines the size of the area a second-level page table
+ * can map.
+ */
+#define PUD_SHIFT (PMD_SHIFT + (PTRS_PER_PTD_SHIFT))
+#define PUD_SIZE (1UL << PUD_SHIFT)
+#define PUD_MASK (~(PUD_SIZE-1))
+#define PTRS_PER_PUD (1UL << (PTRS_PER_PTD_SHIFT))
+
+#endif
+/*
+ * Definitions for first level:
+ *
+ * PGDIR_SHIFT determines what a first-level page table entry can map.
+ */
+#ifdef CONFIG_PGTABLE_4
+#define PGDIR_SHIFT (PUD_SHIFT + (PTRS_PER_PTD_SHIFT))
+#else
+#define PGDIR_SHIFT (PMD_SHIFT + (PTRS_PER_PTD_SHIFT))
+#endif
+#define PGDIR_SIZE (__IA64_UL(1) << PGDIR_SHIFT)
+#define PGDIR_MASK (~(PGDIR_SIZE-1))
+#define PTRS_PER_PGD_SHIFT PTRS_PER_PTD_SHIFT
+#define PTRS_PER_PGD (1UL << PTRS_PER_PGD_SHIFT)
+#define USER_PTRS_PER_PGD (5*PTRS_PER_PGD/8) /* regions 0-4 are user regions */
+
+#endif
Index: linux-2.6.20-rc1/include/asm-ia64/pgtable.h
===================================================================
--- linux-2.6.20-rc1.orig/include/asm-ia64/pgtable.h 2006-12-23 20:24:51.003909000 +1100
+++ linux-2.6.20-rc1/include/asm-ia64/pgtable.h 2006-12-23 20:26:16.243909000 +1100
@@ -19,6 +19,10 @@
#include <asm/system.h>
#include <asm/types.h>
+#ifdef CONFIG_PT_DEFAULT
+#include <asm/pgtable-default.h>
+#endif
+
#define IA64_MAX_PHYS_BITS 50 /* max. number of physical address bits (architected) */
/*
@@ -82,55 +86,6 @@
#define __DIRTY_BITS_NO_ED _PAGE_A | _PAGE_P | _PAGE_D | _PAGE_MA_WB
#define __DIRTY_BITS _PAGE_ED | __DIRTY_BITS_NO_ED
-/*
- * How many pointers will a page table level hold expressed in shift
- */
-#define PTRS_PER_PTD_SHIFT (PAGE_SHIFT-3)
-
-/*
- * Definitions for fourth level:
- */
-#define PTRS_PER_PTE (__IA64_UL(1) << (PTRS_PER_PTD_SHIFT))
-
-/*
- * Definitions for third level:
- *
- * PMD_SHIFT determines the size of the area a third-level page table
- * can map.
- */
-#define PMD_SHIFT (PAGE_SHIFT + (PTRS_PER_PTD_SHIFT))
-#define PMD_SIZE (1UL << PMD_SHIFT)
-#define PMD_MASK (~(PMD_SIZE-1))
-#define PTRS_PER_PMD (1UL << (PTRS_PER_PTD_SHIFT))
-
-#ifdef CONFIG_PGTABLE_4
-/*
- * Definitions for second level:
- *
- * PUD_SHIFT determines the size of the area a second-level page table
- * can map.
- */
-#define PUD_SHIFT (PMD_SHIFT + (PTRS_PER_PTD_SHIFT))
-#define PUD_SIZE (1UL << PUD_SHIFT)
-#define PUD_MASK (~(PUD_SIZE-1))
-#define PTRS_PER_PUD (1UL << (PTRS_PER_PTD_SHIFT))
-#endif
-
-/*
- * Definitions for first level:
- *
- * PGDIR_SHIFT determines what a first-level page table entry can map.
- */
-#ifdef CONFIG_PGTABLE_4
-#define PGDIR_SHIFT (PUD_SHIFT + (PTRS_PER_PTD_SHIFT))
-#else
-#define PGDIR_SHIFT (PMD_SHIFT + (PTRS_PER_PTD_SHIFT))
-#endif
-#define PGDIR_SIZE (__IA64_UL(1) << PGDIR_SHIFT)
-#define PGDIR_MASK (~(PGDIR_SIZE-1))
-#define PTRS_PER_PGD_SHIFT PTRS_PER_PTD_SHIFT
-#define PTRS_PER_PGD (1UL << PTRS_PER_PGD_SHIFT)
-#define USER_PTRS_PER_PGD (5*PTRS_PER_PGD/8) /* regions 0-4 are user regions */
#define FIRST_USER_ADDRESS 0
/*
@@ -595,9 +550,11 @@
#define __HAVE_ARCH_PGD_OFFSET_GATE
#define __HAVE_ARCH_LAZY_MMU_PROT_UPDATE
+#ifdef CONFIG_PT_DEFAULT
#ifndef CONFIG_PGTABLE_4
#include <asm-generic/pgtable-nopud.h>
#endif
#include <asm-generic/pgtable.h>
+#endif
#endif /* _ASM_IA64_PGTABLE_H */
--
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next prev parent reply other threads:[~2007-01-13 2:48 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-01-13 2:45 [PATCH 0/29] Page Table Interface Explanation Paul Davies
2007-01-13 2:45 ` [PATCH 1/29] Abstract current page table implementation Paul Davies
2007-01-13 2:45 ` [PATCH 2/29] " Paul Davies
2007-01-13 2:45 ` [PATCH 3/29] " Paul Davies
2007-01-16 18:55 ` Christoph Lameter
2007-01-13 2:46 ` [PATCH 4/29] Introduce Page Table Interface (PTI) Paul Davies
2007-01-16 19:02 ` Christoph Lameter
2007-01-13 2:46 ` [PATCH 5/29] Start calling simple PTI functions Paul Davies
2007-01-16 19:04 ` Christoph Lameter
2007-01-18 6:43 ` Paul Cameron Davies
2007-01-13 2:46 ` [PATCH 6/29] Tweak IA64 arch dependent files to work with PTI Paul Davies
2007-01-16 19:05 ` Christoph Lameter
2007-01-13 2:46 ` [PATCH 7/29] Continue calling simple PTI functions Paul Davies
2007-01-16 19:08 ` Christoph Lameter
2007-01-13 2:46 ` [PATCH 8/29] Clean up page fault handers Paul Davies
2007-01-13 2:46 ` [PATCH 9/29] Clean up page fault handlers Paul Davies
2007-01-13 2:46 ` [PATCH 10/29] Call simple PTI functions Paul Davies
2007-01-13 2:46 ` [PATCH 11/29] Call simple PTI functions cont Paul Davies
2007-01-13 2:46 ` [PATCH 12/29] Abstract page table tear down Paul Davies
2007-01-13 2:46 ` [PATCH 13/29] Finish abstracting " Paul Davies
2007-01-13 2:46 ` [PATCH 14/29] Abstract copy page range iterator Paul Davies
2007-01-13 2:46 ` [PATCH 15/29] Finish abstracting copy page range Paul Davies
2007-01-13 2:47 ` [PATCH 16/29] Abstract unmap page range iterator Paul Davies
2007-01-13 2:47 ` [PATCH 17/29] Finish abstracting unmap page range Paul Davies
2007-01-13 2:47 ` [PATCH 18/29] Abstract zeromap " Paul Davies
2007-01-13 2:47 ` [PATCH 19/29] Abstract remap pfn range Paul Davies
2007-01-13 2:47 ` [PATCH 20/29] Abstract change protection iterator Paul Davies
2007-01-13 2:47 ` [PATCH 21/29] Abstract unmap vm area Paul Davies
2007-01-13 2:47 ` [PATCH 22/29] Abstract map " Paul Davies
2007-01-13 2:47 ` [PATCH 23/29] Abstract unuse_vma Paul Davies
2007-01-13 2:47 ` [PATCH 24/29] Abstract smaps iterator Paul Davies
2007-01-13 2:47 ` [PATCH 25/29] Abstact mempolicy iterator Paul Davies
2007-01-13 2:47 ` [PATCH 26/29] Abstract mempolicy iterator cont Paul Davies
2007-01-13 2:48 ` [PATCH 27/29] Abstract implementation dependent code for mremap Paul Davies
2007-01-13 2:48 ` [PATCH 28/29] Abstract ioremap iterator Paul Davies
2007-01-13 2:48 ` [PATCH 29/29] Tweak i386 arch dependent files to work with PTI Paul Davies
2007-01-13 2:48 ` [PATCH 1/5] Introduce IA64 page table interface Paul Davies
2007-01-13 2:48 ` Paul Davies [this message]
2007-01-13 2:48 ` [PATCH 3/5] Abstact pgtable continued Paul Davies
2007-01-13 2:48 ` [PATCH 4/5] Abstract assembler lookup Paul Davies
2007-01-13 2:48 ` [PATCH 5/5] Abstract pgalloc Paul Davies
2007-01-13 2:48 ` [PATCH 1/12] Alternate page table implementation (GPT) Paul Davies
2007-01-13 2:48 ` [PATCH 2/12] Alternate page table implementation cont Paul Davies
2007-01-13 2:48 ` [PATCH 3/12] " Paul Davies
2007-01-13 2:49 ` [PATCH 4/12] " Paul Davies
2007-01-13 2:49 ` [PATCH 5/12] " Paul Davies
2007-01-13 2:49 ` [PATCH 6/12] " Paul Davies
2007-01-13 2:49 ` [PATCH 7/12] " Paul Davies
2007-01-13 2:49 ` [PATCH 8/12] " Paul Davies
2007-01-13 2:49 ` [PATCH 9/12] " Paul Davies
2007-01-13 2:49 ` [PATCH 10/12] " Paul Davies
2007-01-13 2:49 ` [PATCH 11/12] " Paul Davies
2007-01-13 2:49 ` [PATCH 12/12] " Paul Davies
2007-01-13 19:29 ` [PATCH 0/29] Page Table Interface Explanation Peter Zijlstra
2007-01-14 10:06 ` Paul Cameron Davies
2007-01-16 18:49 ` Christoph Lameter
2007-01-18 6:22 ` Paul Cameron Davies
2007-01-16 18:51 ` Christoph Lameter
2007-01-18 6:53 ` Paul Cameron Davies
2007-01-16 19:14 ` Christoph Lameter
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