[RFC][PATCH 4/9] ia64 generic PAGE_SIZE

From: Dave Hansen
Date: Wed Aug 30 2006 - 18:13:59 EST


This is the ia64 portion to convert it over to the generic PAGE_SIZE
framework.

* Change all references to CONFIG_IA64_PAGE_SIZE_*KB to
CONFIG_PAGE_SIZE_* and update the defconfigs.
* remove ia64-specific Kconfig menu
* add ia64 default of 16k pages to mm/Kconfig
* add support for 8k and 16k pages, plus 64k if !ITANIUM

Signed-off-by: Dave Hansen <haveblue@xxxxxxxxxx>
---

threadalloc-dave/include/asm-ia64/ptrace.h | 6 +--
threadalloc-dave/include/asm-ia64/page.h | 21 ----------
threadalloc-dave/arch/ia64/Kconfig | 34 +----------------
threadalloc-dave/arch/ia64/configs/bigsur_defconfig | 8 ++--
threadalloc-dave/arch/ia64/configs/gensparse_defconfig | 8 ++--
threadalloc-dave/arch/ia64/configs/sim_defconfig | 8 ++--
threadalloc-dave/arch/ia64/configs/sn2_defconfig | 8 ++--
threadalloc-dave/arch/ia64/configs/tiger_defconfig | 8 ++--
threadalloc-dave/arch/ia64/configs/zx1_defconfig | 8 ++--
threadalloc-dave/arch/ia64/defconfig | 8 ++--
threadalloc-dave/mm/Kconfig | 4 ++
11 files changed, 38 insertions(+), 83 deletions(-)

diff -puN include/asm-ia64/ptrace.h~ia64 include/asm-ia64/ptrace.h
--- threadalloc/include/asm-ia64/ptrace.h~ia64 2006-08-30 15:14:56.000000000 -0700
+++ threadalloc-dave/include/asm-ia64/ptrace.h 2006-08-30 15:15:02.000000000 -0700
@@ -64,11 +64,11 @@
* Base-2 logarithm of number of pages to allocate per task structure
* (including register backing store and memory stack):
*/
-#if defined(CONFIG_IA64_PAGE_SIZE_4KB)
+#if defined(CONFIG_PAGE_SIZE_4KB)
# define KERNEL_STACK_SIZE_ORDER 3
-#elif defined(CONFIG_IA64_PAGE_SIZE_8KB)
+#elif defined(CONFIG_PAGE_SIZE_8KB)
# define KERNEL_STACK_SIZE_ORDER 2
-#elif defined(CONFIG_IA64_PAGE_SIZE_16KB)
+#elif defined(CONFIG_PAGE_SIZE_16KB)
# define KERNEL_STACK_SIZE_ORDER 1
#else
# define KERNEL_STACK_SIZE_ORDER 0
diff -puN include/asm-ia64/page.h~ia64 include/asm-ia64/page.h
--- threadalloc/include/asm-ia64/page.h~ia64 2006-08-30 15:14:56.000000000 -0700
+++ threadalloc-dave/include/asm-ia64/page.h 2006-08-30 15:15:02.000000000 -0700
@@ -7,7 +7,7 @@
* David Mosberger-Tang <davidm@xxxxxxxxxx>
*/

-
+#include <asm-generic/page.h>
#include <asm/intrinsics.h>
#include <asm/types.h>

@@ -24,25 +24,6 @@
#define RGN_GATE 5 /* Gate page, Kernel text, etc */
#define RGN_HPAGE 4 /* For Huge TLB pages */

-/*
- * PAGE_SHIFT determines the actual kernel page size.
- */
-#if defined(CONFIG_IA64_PAGE_SIZE_4KB)
-# define PAGE_SHIFT 12
-#elif defined(CONFIG_IA64_PAGE_SIZE_8KB)
-# define PAGE_SHIFT 13
-#elif defined(CONFIG_IA64_PAGE_SIZE_16KB)
-# define PAGE_SHIFT 14
-#elif defined(CONFIG_IA64_PAGE_SIZE_64KB)
-# define PAGE_SHIFT 16
-#else
-# error Unsupported page size!
-#endif
-
-#define PAGE_SIZE (__IA64_UL_CONST(1) << PAGE_SHIFT)
-#define PAGE_MASK (~(PAGE_SIZE - 1))
-#define PAGE_ALIGN(addr) (((addr) + PAGE_SIZE - 1) & PAGE_MASK)
-
#define PERCPU_PAGE_SHIFT 16 /* log2() of max. size of per-CPU area */
#define PERCPU_PAGE_SIZE (__IA64_UL_CONST(1) << PERCPU_PAGE_SHIFT)

diff -puN arch/ia64/Kconfig~ia64 arch/ia64/Kconfig
--- threadalloc/arch/ia64/Kconfig~ia64 2006-08-30 15:14:56.000000000 -0700
+++ threadalloc-dave/arch/ia64/Kconfig 2006-08-30 15:15:02.000000000 -0700
@@ -149,38 +149,8 @@ config MCKINLEY

endchoice

-choice
- prompt "Kernel page size"
- default IA64_PAGE_SIZE_16KB
-
-config IA64_PAGE_SIZE_4KB
- bool "4KB"
- help
- This lets you select the page size of the kernel. For best IA-64
- performance, a page size of 8KB or 16KB is recommended. For best
- IA-32 compatibility, a page size of 4KB should be selected (the vast
- majority of IA-32 binaries work perfectly fine with a larger page
- size). For Itanium 2 or newer systems, a page size of 64KB can also
- be selected.
-
- 4KB For best IA-32 compatibility
- 8KB For best IA-64 performance
- 16KB For best IA-64 performance
- 64KB Requires Itanium 2 or newer processor.
-
- If you don't know what to do, choose 16KB.
-
-config IA64_PAGE_SIZE_8KB
- bool "8KB"
-
-config IA64_PAGE_SIZE_16KB
- bool "16KB"
-
-config IA64_PAGE_SIZE_64KB
- depends on !ITANIUM
- bool "64KB"
-
-endchoice
+config ARCH_GENERIC_PAGE_SIZE
+ def_bool y

choice
prompt "Page Table Levels"
diff -puN arch/ia64/configs/bigsur_defconfig~ia64 arch/ia64/configs/bigsur_defconfig
--- threadalloc/arch/ia64/configs/bigsur_defconfig~ia64 2006-08-30 15:14:56.000000000 -0700
+++ threadalloc-dave/arch/ia64/configs/bigsur_defconfig 2006-08-30 15:15:02.000000000 -0700
@@ -98,10 +98,10 @@ CONFIG_IA64_DIG=y
# CONFIG_IA64_HP_SIM is not set
CONFIG_ITANIUM=y
# CONFIG_MCKINLEY is not set
-# CONFIG_IA64_PAGE_SIZE_4KB is not set
-# CONFIG_IA64_PAGE_SIZE_8KB is not set
-CONFIG_IA64_PAGE_SIZE_16KB=y
-# CONFIG_IA64_PAGE_SIZE_64KB is not set
+# CONFIG_PAGE_SIZE_4KB is not set
+# CONFIG_PAGE_SIZE_8KB is not set
+CONFIG_PAGE_SIZE_16KB=y
+# CONFIG_PAGE_SIZE_64KB is not set
CONFIG_PGTABLE_3=y
# CONFIG_PGTABLE_4 is not set
# CONFIG_HZ_100 is not set
diff -puN arch/ia64/configs/gensparse_defconfig~ia64 arch/ia64/configs/gensparse_defconfig
--- threadalloc/arch/ia64/configs/gensparse_defconfig~ia64 2006-08-30 15:14:56.000000000 -0700
+++ threadalloc-dave/arch/ia64/configs/gensparse_defconfig 2006-08-30 15:15:02.000000000 -0700
@@ -99,10 +99,10 @@ CONFIG_IA64_GENERIC=y
# CONFIG_IA64_HP_SIM is not set
# CONFIG_ITANIUM is not set
CONFIG_MCKINLEY=y
-# CONFIG_IA64_PAGE_SIZE_4KB is not set
-# CONFIG_IA64_PAGE_SIZE_8KB is not set
-CONFIG_IA64_PAGE_SIZE_16KB=y
-# CONFIG_IA64_PAGE_SIZE_64KB is not set
+# CONFIG_PAGE_SIZE_4KB is not set
+# CONFIG_PAGE_SIZE_8KB is not set
+CONFIG_PAGE_SIZE_16KB=y
+# CONFIG_PAGE_SIZE_64KB is not set
CONFIG_PGTABLE_3=y
# CONFIG_PGTABLE_4 is not set
# CONFIG_HZ_100 is not set
diff -puN arch/ia64/configs/sim_defconfig~ia64 arch/ia64/configs/sim_defconfig
--- threadalloc/arch/ia64/configs/sim_defconfig~ia64 2006-08-30 15:14:56.000000000 -0700
+++ threadalloc-dave/arch/ia64/configs/sim_defconfig 2006-08-30 15:15:02.000000000 -0700
@@ -99,10 +99,10 @@ CONFIG_DMA_IS_DMA32=y
CONFIG_IA64_HP_SIM=y
# CONFIG_ITANIUM is not set
CONFIG_MCKINLEY=y
-# CONFIG_IA64_PAGE_SIZE_4KB is not set
-# CONFIG_IA64_PAGE_SIZE_8KB is not set
-# CONFIG_IA64_PAGE_SIZE_16KB is not set
-CONFIG_IA64_PAGE_SIZE_64KB=y
+# CONFIG_PAGE_SIZE_4KB is not set
+# CONFIG_PAGE_SIZE_8KB is not set
+# CONFIG_PAGE_SIZE_16KB is not set
+CONFIG_PAGE_SIZE_64KB=y
CONFIG_PGTABLE_3=y
# CONFIG_PGTABLE_4 is not set
# CONFIG_HZ_100 is not set
diff -puN arch/ia64/configs/sn2_defconfig~ia64 arch/ia64/configs/sn2_defconfig
--- threadalloc/arch/ia64/configs/sn2_defconfig~ia64 2006-08-30 15:14:56.000000000 -0700
+++ threadalloc-dave/arch/ia64/configs/sn2_defconfig 2006-08-30 15:15:02.000000000 -0700
@@ -98,10 +98,10 @@ CONFIG_IA64_SGI_SN2=y
# CONFIG_IA64_HP_SIM is not set
# CONFIG_ITANIUM is not set
CONFIG_MCKINLEY=y
-# CONFIG_IA64_PAGE_SIZE_4KB is not set
-# CONFIG_IA64_PAGE_SIZE_8KB is not set
-CONFIG_IA64_PAGE_SIZE_16KB=y
-# CONFIG_IA64_PAGE_SIZE_64KB is not set
+# CONFIG_PAGE_SIZE_4KB is not set
+# CONFIG_PAGE_SIZE_8KB is not set
+CONFIG_PAGE_SIZE_16KB=y
+# CONFIG_PAGE_SIZE_64KB is not set
# CONFIG_PGTABLE_3 is not set
CONFIG_PGTABLE_4=y
# CONFIG_HZ_100 is not set
diff -puN arch/ia64/configs/tiger_defconfig~ia64 arch/ia64/configs/tiger_defconfig
--- threadalloc/arch/ia64/configs/tiger_defconfig~ia64 2006-08-30 15:14:56.000000000 -0700
+++ threadalloc-dave/arch/ia64/configs/tiger_defconfig 2006-08-30 15:15:02.000000000 -0700
@@ -99,10 +99,10 @@ CONFIG_IA64_DIG=y
# CONFIG_IA64_HP_SIM is not set
# CONFIG_ITANIUM is not set
CONFIG_MCKINLEY=y
-# CONFIG_IA64_PAGE_SIZE_4KB is not set
-# CONFIG_IA64_PAGE_SIZE_8KB is not set
-CONFIG_IA64_PAGE_SIZE_16KB=y
-# CONFIG_IA64_PAGE_SIZE_64KB is not set
+# CONFIG_PAGE_SIZE_4KB is not set
+# CONFIG_PAGE_SIZE_8KB is not set
+CONFIG_PAGE_SIZE_16KB=y
+# CONFIG_PAGE_SIZE_64KB is not set
CONFIG_PGTABLE_3=y
# CONFIG_PGTABLE_4 is not set
# CONFIG_HZ_100 is not set
diff -puN arch/ia64/configs/zx1_defconfig~ia64 arch/ia64/configs/zx1_defconfig
--- threadalloc/arch/ia64/configs/zx1_defconfig~ia64 2006-08-30 15:14:56.000000000 -0700
+++ threadalloc-dave/arch/ia64/configs/zx1_defconfig 2006-08-30 15:15:02.000000000 -0700
@@ -97,10 +97,10 @@ CONFIG_IA64_HP_ZX1=y
# CONFIG_IA64_HP_SIM is not set
# CONFIG_ITANIUM is not set
CONFIG_MCKINLEY=y
-# CONFIG_IA64_PAGE_SIZE_4KB is not set
-# CONFIG_IA64_PAGE_SIZE_8KB is not set
-CONFIG_IA64_PAGE_SIZE_16KB=y
-# CONFIG_IA64_PAGE_SIZE_64KB is not set
+# CONFIG_PAGE_SIZE_4KB is not set
+# CONFIG_PAGE_SIZE_8KB is not set
+CONFIG_PAGE_SIZE_16KB=y
+# CONFIG_PAGE_SIZE_64KB is not set
CONFIG_PGTABLE_3=y
# CONFIG_PGTABLE_4 is not set
# CONFIG_HZ_100 is not set
diff -puN arch/ia64/defconfig~ia64 arch/ia64/defconfig
--- threadalloc/arch/ia64/defconfig~ia64 2006-08-30 15:14:56.000000000 -0700
+++ threadalloc-dave/arch/ia64/defconfig 2006-08-30 15:15:02.000000000 -0700
@@ -99,10 +99,10 @@ CONFIG_IA64_GENERIC=y
# CONFIG_IA64_HP_SIM is not set
# CONFIG_ITANIUM is not set
CONFIG_MCKINLEY=y
-# CONFIG_IA64_PAGE_SIZE_4KB is not set
-# CONFIG_IA64_PAGE_SIZE_8KB is not set
-CONFIG_IA64_PAGE_SIZE_16KB=y
-# CONFIG_IA64_PAGE_SIZE_64KB is not set
+# CONFIG_PAGE_SIZE_4KB is not set
+# CONFIG_PAGE_SIZE_8KB is not set
+CONFIG_PAGE_SIZE_16KB=y
+# CONFIG_PAGE_SIZE_64KB is not set
CONFIG_PGTABLE_3=y
# CONFIG_PGTABLE_4 is not set
# CONFIG_HZ_100 is not set
diff -puN mm/Kconfig~ia64 mm/Kconfig
--- threadalloc/mm/Kconfig~ia64 2006-08-30 15:15:01.000000000 -0700
+++ threadalloc-dave/mm/Kconfig 2006-08-30 15:15:02.000000000 -0700
@@ -5,6 +5,7 @@ config ARCH_HAVE_GET_ORDER
choice
prompt "Kernel Page Size"
depends on ARCH_GENERIC_PAGE_SIZE
+ default PAGE_SIZE_16KB if IA64
config PAGE_SIZE_4KB
bool "4KB"
help
@@ -25,10 +26,13 @@ config PAGE_SIZE_4KB
architecture.
config PAGE_SIZE_8KB
bool "8KB"
+ depends on IA64
config PAGE_SIZE_16KB
bool "16KB"
+ depends on IA64
config PAGE_SIZE_64KB
bool "64KB"
+ depends on (IA64 && !ITANIUM)
config PAGE_SIZE_512KB
bool "512KB"
config PAGE_SIZE_4MB
_
-
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