[2/4] arch: simplify architecture specific page size configuration
Commit Message
From: Arnd Bergmann <arnd@arndb.de>
arc, arm64, parisc and powerpc all have their own Kconfig symbols
in place of the common CONFIG_PAGE_SIZE_4KB symbols. Change these
so the common symbols are the ones that are actually used, while
leaving the arhcitecture specific ones as the user visible
place for configuring it, to avoid breaking user configs.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---
arch/arc/Kconfig | 3 +++
arch/arc/include/uapi/asm/page.h | 6 ++----
arch/arm64/Kconfig | 29 +++++++++++++----------------
arch/arm64/include/asm/page-def.h | 2 +-
arch/parisc/Kconfig | 3 +++
arch/parisc/include/asm/page.h | 10 +---------
arch/powerpc/Kconfig | 31 ++++++-------------------------
arch/powerpc/include/asm/page.h | 2 +-
scripts/gdb/linux/constants.py.in | 2 +-
scripts/gdb/linux/mm.py | 2 +-
10 files changed, 32 insertions(+), 58 deletions(-)
Comments
Le 26/02/2024 à 17:14, Arnd Bergmann a écrit :
> From: Arnd Bergmann <arnd@arndb.de>
>
> arc, arm64, parisc and powerpc all have their own Kconfig symbols
> in place of the common CONFIG_PAGE_SIZE_4KB symbols. Change these
> so the common symbols are the ones that are actually used, while
> leaving the arhcitecture specific ones as the user visible
> place for configuring it, to avoid breaking user configs.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Christophe Leroy <christophe.leroy@csgroup.eu> (powerpc32)
> ---
> arch/arc/Kconfig | 3 +++
> arch/arc/include/uapi/asm/page.h | 6 ++----
> arch/arm64/Kconfig | 29 +++++++++++++----------------
> arch/arm64/include/asm/page-def.h | 2 +-
> arch/parisc/Kconfig | 3 +++
> arch/parisc/include/asm/page.h | 10 +---------
> arch/powerpc/Kconfig | 31 ++++++-------------------------
> arch/powerpc/include/asm/page.h | 2 +-
> scripts/gdb/linux/constants.py.in | 2 +-
> scripts/gdb/linux/mm.py | 2 +-
> 10 files changed, 32 insertions(+), 58 deletions(-)
>
> diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig
> index 1b0483c51cc1..4092bec198be 100644
> --- a/arch/arc/Kconfig
> +++ b/arch/arc/Kconfig
> @@ -284,14 +284,17 @@ choice
>
> config ARC_PAGE_SIZE_8K
> bool "8KB"
> + select HAVE_PAGE_SIZE_8KB
> help
> Choose between 8k vs 16k
>
> config ARC_PAGE_SIZE_16K
> + select HAVE_PAGE_SIZE_16KB
> bool "16KB"
>
> config ARC_PAGE_SIZE_4K
> bool "4KB"
> + select HAVE_PAGE_SIZE_4KB
> depends on ARC_MMU_V3 || ARC_MMU_V4
>
> endchoice
> diff --git a/arch/arc/include/uapi/asm/page.h b/arch/arc/include/uapi/asm/page.h
> index 2a4ad619abfb..7fd9e741b527 100644
> --- a/arch/arc/include/uapi/asm/page.h
> +++ b/arch/arc/include/uapi/asm/page.h
> @@ -13,10 +13,8 @@
> #include <linux/const.h>
>
> /* PAGE_SHIFT determines the page size */
> -#if defined(CONFIG_ARC_PAGE_SIZE_16K)
> -#define PAGE_SHIFT 14
> -#elif defined(CONFIG_ARC_PAGE_SIZE_4K)
> -#define PAGE_SHIFT 12
> +#ifdef __KERNEL__
> +#define PAGE_SHIFT CONFIG_PAGE_SHIFT
> #else
> /*
> * Default 8k
> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
> index aa7c1d435139..29290b8cb36d 100644
> --- a/arch/arm64/Kconfig
> +++ b/arch/arm64/Kconfig
> @@ -277,27 +277,21 @@ config 64BIT
> config MMU
> def_bool y
>
> -config ARM64_PAGE_SHIFT
> - int
> - default 16 if ARM64_64K_PAGES
> - default 14 if ARM64_16K_PAGES
> - default 12
> -
> config ARM64_CONT_PTE_SHIFT
> int
> - default 5 if ARM64_64K_PAGES
> - default 7 if ARM64_16K_PAGES
> + default 5 if PAGE_SIZE_64KB
> + default 7 if PAGE_SIZE_16KB
> default 4
>
> config ARM64_CONT_PMD_SHIFT
> int
> - default 5 if ARM64_64K_PAGES
> - default 5 if ARM64_16K_PAGES
> + default 5 if PAGE_SIZE_64KB
> + default 5 if PAGE_SIZE_16KB
> default 4
>
> config ARCH_MMAP_RND_BITS_MIN
> - default 14 if ARM64_64K_PAGES
> - default 16 if ARM64_16K_PAGES
> + default 14 if PAGE_SIZE_64KB
> + default 16 if PAGE_SIZE_16KB
> default 18
>
> # max bits determined by the following formula:
> @@ -1259,11 +1253,13 @@ choice
>
> config ARM64_4K_PAGES
> bool "4KB"
> + select HAVE_PAGE_SIZE_4KB
> help
> This feature enables 4KB pages support.
>
> config ARM64_16K_PAGES
> bool "16KB"
> + select HAVE_PAGE_SIZE_16KB
> help
> The system will use 16KB pages support. AArch32 emulation
> requires applications compiled with 16K (or a multiple of 16K)
> @@ -1271,6 +1267,7 @@ config ARM64_16K_PAGES
>
> config ARM64_64K_PAGES
> bool "64KB"
> + select HAVE_PAGE_SIZE_64KB
> help
> This feature enables 64KB pages support (4KB by default)
> allowing only two levels of page tables and faster TLB
> @@ -1291,19 +1288,19 @@ choice
>
> config ARM64_VA_BITS_36
> bool "36-bit" if EXPERT
> - depends on ARM64_16K_PAGES
> + depends on PAGE_SIZE_16KB
>
> config ARM64_VA_BITS_39
> bool "39-bit"
> - depends on ARM64_4K_PAGES
> + depends on PAGE_SIZE_4KB
>
> config ARM64_VA_BITS_42
> bool "42-bit"
> - depends on ARM64_64K_PAGES
> + depends on PAGE_SIZE_64KB
>
> config ARM64_VA_BITS_47
> bool "47-bit"
> - depends on ARM64_16K_PAGES
> + depends on PAGE_SIZE_16KB
>
> config ARM64_VA_BITS_48
> bool "48-bit"
> diff --git a/arch/arm64/include/asm/page-def.h b/arch/arm64/include/asm/page-def.h
> index 2403f7b4cdbf..792e9fe881dc 100644
> --- a/arch/arm64/include/asm/page-def.h
> +++ b/arch/arm64/include/asm/page-def.h
> @@ -11,7 +11,7 @@
> #include <linux/const.h>
>
> /* PAGE_SHIFT determines the page size */
> -#define PAGE_SHIFT CONFIG_ARM64_PAGE_SHIFT
> +#define PAGE_SHIFT CONFIG_PAGE_SHIFT
> #define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT)
> #define PAGE_MASK (~(PAGE_SIZE-1))
>
> diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig
> index 5c845e8d59d9..b180e684fa0d 100644
> --- a/arch/parisc/Kconfig
> +++ b/arch/parisc/Kconfig
> @@ -273,6 +273,7 @@ choice
>
> config PARISC_PAGE_SIZE_4KB
> bool "4KB"
> + select HAVE_PAGE_SIZE_4KB
> help
> This lets you select the page size of the kernel. For best
> performance, a page size of 16KB is recommended. For best
> @@ -288,10 +289,12 @@ config PARISC_PAGE_SIZE_4KB
>
> config PARISC_PAGE_SIZE_16KB
> bool "16KB"
> + select HAVE_PAGE_SIZE_16KB
> depends on PA8X00 && BROKEN && !KFENCE
>
> config PARISC_PAGE_SIZE_64KB
> bool "64KB"
> + select HAVE_PAGE_SIZE_64KB
> depends on PA8X00 && BROKEN && !KFENCE
>
> endchoice
> diff --git a/arch/parisc/include/asm/page.h b/arch/parisc/include/asm/page.h
> index 667e703c0e8f..ad4e15d12ed1 100644
> --- a/arch/parisc/include/asm/page.h
> +++ b/arch/parisc/include/asm/page.h
> @@ -4,15 +4,7 @@
>
> #include <linux/const.h>
>
> -#if defined(CONFIG_PARISC_PAGE_SIZE_4KB)
> -# define PAGE_SHIFT 12
> -#elif defined(CONFIG_PARISC_PAGE_SIZE_16KB)
> -# define PAGE_SHIFT 14
> -#elif defined(CONFIG_PARISC_PAGE_SIZE_64KB)
> -# define PAGE_SHIFT 16
> -#else
> -# error "unknown default kernel page size"
> -#endif
> +#define PAGE_SHIFT CONFIG_PAGE_SHIFT
> #define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT)
> #define PAGE_MASK (~(PAGE_SIZE-1))
>
> diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
> index b9fc064d38d2..8fad4e5d7ad5 100644
> --- a/arch/powerpc/Kconfig
> +++ b/arch/powerpc/Kconfig
> @@ -212,7 +212,7 @@ config PPC
> select HAVE_ARCH_HUGE_VMAP if PPC_RADIX_MMU || PPC_8xx
> select HAVE_ARCH_JUMP_LABEL
> select HAVE_ARCH_JUMP_LABEL_RELATIVE
> - select HAVE_ARCH_KASAN if PPC32 && PPC_PAGE_SHIFT <= 14
> + select HAVE_ARCH_KASAN if PPC32 && PAGE_SHIFT <= 14
> select HAVE_ARCH_KASAN if PPC_RADIX_MMU
> select HAVE_ARCH_KASAN if PPC_BOOK3E_64
> select HAVE_ARCH_KASAN_VMALLOC if HAVE_ARCH_KASAN
> @@ -809,19 +809,23 @@ choice
> config PPC_4K_PAGES
> bool "4k page size"
> select HAVE_ARCH_SOFT_DIRTY if PPC_BOOK3S_64
> + select HAVE_PAGE_SIZE_4KB
>
> config PPC_16K_PAGES
> bool "16k page size"
> depends on 44x || PPC_8xx
> + select HAVE_PAGE_SIZE_16KB
>
> config PPC_64K_PAGES
> bool "64k page size"
> depends on 44x || PPC_BOOK3S_64
> select HAVE_ARCH_SOFT_DIRTY if PPC_BOOK3S_64
> + select HAVE_PAGE_SIZE_64KB
>
> config PPC_256K_PAGES
> bool "256k page size (Requires non-standard binutils settings)"
> depends on 44x && !PPC_47x
> + select HAVE_PAGE_SIZE_256KB
> help
> Make the page size 256k.
>
> @@ -832,29 +836,6 @@ config PPC_256K_PAGES
>
> endchoice
>
> -config PAGE_SIZE_4KB
> - def_bool y
> - depends on PPC_4K_PAGES
> -
> -config PAGE_SIZE_16KB
> - def_bool y
> - depends on PPC_16K_PAGES
> -
> -config PAGE_SIZE_64KB
> - def_bool y
> - depends on PPC_64K_PAGES
> -
> -config PAGE_SIZE_256KB
> - def_bool y
> - depends on PPC_256K_PAGES
> -
> -config PPC_PAGE_SHIFT
> - int
> - default 18 if PPC_256K_PAGES
> - default 16 if PPC_64K_PAGES
> - default 14 if PPC_16K_PAGES
> - default 12
> -
> config THREAD_SHIFT
> int "Thread shift" if EXPERT
> range 13 15
> @@ -891,7 +872,7 @@ config DATA_SHIFT
> default 23 if (DEBUG_PAGEALLOC || KFENCE) && PPC_8xx && PIN_TLB_DATA
> default 19 if (DEBUG_PAGEALLOC || KFENCE) && PPC_8xx
> default 24 if STRICT_KERNEL_RWX && PPC_85xx
> - default PPC_PAGE_SHIFT
> + default PAGE_SHIFT
> help
> On Book3S 32 (603+), DBATs are used to map kernel text and rodata RO.
> Smaller is the alignment, greater is the number of necessary DBATs.
> diff --git a/arch/powerpc/include/asm/page.h b/arch/powerpc/include/asm/page.h
> index e5fcc79b5bfb..e411e5a70ea3 100644
> --- a/arch/powerpc/include/asm/page.h
> +++ b/arch/powerpc/include/asm/page.h
> @@ -21,7 +21,7 @@
> * page size. When using 64K pages however, whether we are really supporting
> * 64K pages in HW or not is irrelevant to those definitions.
> */
> -#define PAGE_SHIFT CONFIG_PPC_PAGE_SHIFT
> +#define PAGE_SHIFT CONFIG_PAGE_SHIFT
> #define PAGE_SIZE (ASM_CONST(1) << PAGE_SHIFT)
>
> #ifndef __ASSEMBLY__
> diff --git a/scripts/gdb/linux/constants.py.in b/scripts/gdb/linux/constants.py.in
> index e810e0c27ff1..10fadc238719 100644
> --- a/scripts/gdb/linux/constants.py.in
> +++ b/scripts/gdb/linux/constants.py.in
> @@ -139,7 +139,7 @@ LX_CONFIG(CONFIG_ARM64_64K_PAGES)
> if IS_BUILTIN(CONFIG_ARM64):
> LX_VALUE(CONFIG_ARM64_PA_BITS)
> LX_VALUE(CONFIG_ARM64_VA_BITS)
> - LX_VALUE(CONFIG_ARM64_PAGE_SHIFT)
> + LX_VALUE(CONFIG_PAGE_SHIFT)
> LX_VALUE(CONFIG_ARCH_FORCE_MAX_ORDER)
> LX_CONFIG(CONFIG_SPARSEMEM)
> LX_CONFIG(CONFIG_SPARSEMEM_EXTREME)
> diff --git a/scripts/gdb/linux/mm.py b/scripts/gdb/linux/mm.py
> index ad5641dcb068..515730fd4c9d 100644
> --- a/scripts/gdb/linux/mm.py
> +++ b/scripts/gdb/linux/mm.py
> @@ -41,7 +41,7 @@ class aarch64_page_ops():
> self.SECTION_SIZE_BITS = 27
> self.MAX_PHYSMEM_BITS = constants.LX_CONFIG_ARM64_VA_BITS
>
> - self.PAGE_SHIFT = constants.LX_CONFIG_ARM64_PAGE_SHIFT
> + self.PAGE_SHIFT = constants.LX_CONFIG_PAGE_SHIFT
> self.PAGE_SIZE = 1 << self.PAGE_SHIFT
> self.PAGE_MASK = (~(self.PAGE_SIZE - 1)) & ((1 << 64) - 1)
>
On Mon, Feb 26, 2024 at 05:14:12PM +0100, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@arndb.de>
>
> arc, arm64, parisc and powerpc all have their own Kconfig symbols
> in place of the common CONFIG_PAGE_SIZE_4KB symbols. Change these
> so the common symbols are the ones that are actually used, while
> leaving the arhcitecture specific ones as the user visible
> place for configuring it, to avoid breaking user configs.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
For arm64:
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
On 2/26/24 17:14, Arnd Bergmann wrote:
> From: Arnd Bergmann <arnd@arndb.de>
>
> arc, arm64, parisc and powerpc all have their own Kconfig symbols
> in place of the common CONFIG_PAGE_SIZE_4KB symbols. Change these
> so the common symbols are the ones that are actually used, while
> leaving the arhcitecture specific ones as the user visible
> place for configuring it, to avoid breaking user configs.
>
> Signed-off-by: Arnd Bergmann <arnd@arndb.de>
> ---
> arch/arc/Kconfig | 3 +++
> arch/arc/include/uapi/asm/page.h | 6 ++----
> arch/arm64/Kconfig | 29 +++++++++++++----------------
> arch/arm64/include/asm/page-def.h | 2 +-
> arch/parisc/Kconfig | 3 +++
> arch/parisc/include/asm/page.h | 10 +---------
Acked-by: Helge Deller <deller@gmx.de> # parisc
Thanks for the cleanups!
Helge
@@ -284,14 +284,17 @@ choice
config ARC_PAGE_SIZE_8K
bool "8KB"
+ select HAVE_PAGE_SIZE_8KB
help
Choose between 8k vs 16k
config ARC_PAGE_SIZE_16K
+ select HAVE_PAGE_SIZE_16KB
bool "16KB"
config ARC_PAGE_SIZE_4K
bool "4KB"
+ select HAVE_PAGE_SIZE_4KB
depends on ARC_MMU_V3 || ARC_MMU_V4
endchoice
@@ -13,10 +13,8 @@
#include <linux/const.h>
/* PAGE_SHIFT determines the page size */
-#if defined(CONFIG_ARC_PAGE_SIZE_16K)
-#define PAGE_SHIFT 14
-#elif defined(CONFIG_ARC_PAGE_SIZE_4K)
-#define PAGE_SHIFT 12
+#ifdef __KERNEL__
+#define PAGE_SHIFT CONFIG_PAGE_SHIFT
#else
/*
* Default 8k
@@ -277,27 +277,21 @@ config 64BIT
config MMU
def_bool y
-config ARM64_PAGE_SHIFT
- int
- default 16 if ARM64_64K_PAGES
- default 14 if ARM64_16K_PAGES
- default 12
-
config ARM64_CONT_PTE_SHIFT
int
- default 5 if ARM64_64K_PAGES
- default 7 if ARM64_16K_PAGES
+ default 5 if PAGE_SIZE_64KB
+ default 7 if PAGE_SIZE_16KB
default 4
config ARM64_CONT_PMD_SHIFT
int
- default 5 if ARM64_64K_PAGES
- default 5 if ARM64_16K_PAGES
+ default 5 if PAGE_SIZE_64KB
+ default 5 if PAGE_SIZE_16KB
default 4
config ARCH_MMAP_RND_BITS_MIN
- default 14 if ARM64_64K_PAGES
- default 16 if ARM64_16K_PAGES
+ default 14 if PAGE_SIZE_64KB
+ default 16 if PAGE_SIZE_16KB
default 18
# max bits determined by the following formula:
@@ -1259,11 +1253,13 @@ choice
config ARM64_4K_PAGES
bool "4KB"
+ select HAVE_PAGE_SIZE_4KB
help
This feature enables 4KB pages support.
config ARM64_16K_PAGES
bool "16KB"
+ select HAVE_PAGE_SIZE_16KB
help
The system will use 16KB pages support. AArch32 emulation
requires applications compiled with 16K (or a multiple of 16K)
@@ -1271,6 +1267,7 @@ config ARM64_16K_PAGES
config ARM64_64K_PAGES
bool "64KB"
+ select HAVE_PAGE_SIZE_64KB
help
This feature enables 64KB pages support (4KB by default)
allowing only two levels of page tables and faster TLB
@@ -1291,19 +1288,19 @@ choice
config ARM64_VA_BITS_36
bool "36-bit" if EXPERT
- depends on ARM64_16K_PAGES
+ depends on PAGE_SIZE_16KB
config ARM64_VA_BITS_39
bool "39-bit"
- depends on ARM64_4K_PAGES
+ depends on PAGE_SIZE_4KB
config ARM64_VA_BITS_42
bool "42-bit"
- depends on ARM64_64K_PAGES
+ depends on PAGE_SIZE_64KB
config ARM64_VA_BITS_47
bool "47-bit"
- depends on ARM64_16K_PAGES
+ depends on PAGE_SIZE_16KB
config ARM64_VA_BITS_48
bool "48-bit"
@@ -11,7 +11,7 @@
#include <linux/const.h>
/* PAGE_SHIFT determines the page size */
-#define PAGE_SHIFT CONFIG_ARM64_PAGE_SHIFT
+#define PAGE_SHIFT CONFIG_PAGE_SHIFT
#define PAGE_SIZE (_AC(1, UL) << PAGE_SHIFT)
#define PAGE_MASK (~(PAGE_SIZE-1))
@@ -273,6 +273,7 @@ choice
config PARISC_PAGE_SIZE_4KB
bool "4KB"
+ select HAVE_PAGE_SIZE_4KB
help
This lets you select the page size of the kernel. For best
performance, a page size of 16KB is recommended. For best
@@ -288,10 +289,12 @@ config PARISC_PAGE_SIZE_4KB
config PARISC_PAGE_SIZE_16KB
bool "16KB"
+ select HAVE_PAGE_SIZE_16KB
depends on PA8X00 && BROKEN && !KFENCE
config PARISC_PAGE_SIZE_64KB
bool "64KB"
+ select HAVE_PAGE_SIZE_64KB
depends on PA8X00 && BROKEN && !KFENCE
endchoice
@@ -4,15 +4,7 @@
#include <linux/const.h>
-#if defined(CONFIG_PARISC_PAGE_SIZE_4KB)
-# define PAGE_SHIFT 12
-#elif defined(CONFIG_PARISC_PAGE_SIZE_16KB)
-# define PAGE_SHIFT 14
-#elif defined(CONFIG_PARISC_PAGE_SIZE_64KB)
-# define PAGE_SHIFT 16
-#else
-# error "unknown default kernel page size"
-#endif
+#define PAGE_SHIFT CONFIG_PAGE_SHIFT
#define PAGE_SIZE (_AC(1,UL) << PAGE_SHIFT)
#define PAGE_MASK (~(PAGE_SIZE-1))
@@ -212,7 +212,7 @@ config PPC
select HAVE_ARCH_HUGE_VMAP if PPC_RADIX_MMU || PPC_8xx
select HAVE_ARCH_JUMP_LABEL
select HAVE_ARCH_JUMP_LABEL_RELATIVE
- select HAVE_ARCH_KASAN if PPC32 && PPC_PAGE_SHIFT <= 14
+ select HAVE_ARCH_KASAN if PPC32 && PAGE_SHIFT <= 14
select HAVE_ARCH_KASAN if PPC_RADIX_MMU
select HAVE_ARCH_KASAN if PPC_BOOK3E_64
select HAVE_ARCH_KASAN_VMALLOC if HAVE_ARCH_KASAN
@@ -809,19 +809,23 @@ choice
config PPC_4K_PAGES
bool "4k page size"
select HAVE_ARCH_SOFT_DIRTY if PPC_BOOK3S_64
+ select HAVE_PAGE_SIZE_4KB
config PPC_16K_PAGES
bool "16k page size"
depends on 44x || PPC_8xx
+ select HAVE_PAGE_SIZE_16KB
config PPC_64K_PAGES
bool "64k page size"
depends on 44x || PPC_BOOK3S_64
select HAVE_ARCH_SOFT_DIRTY if PPC_BOOK3S_64
+ select HAVE_PAGE_SIZE_64KB
config PPC_256K_PAGES
bool "256k page size (Requires non-standard binutils settings)"
depends on 44x && !PPC_47x
+ select HAVE_PAGE_SIZE_256KB
help
Make the page size 256k.
@@ -832,29 +836,6 @@ config PPC_256K_PAGES
endchoice
-config PAGE_SIZE_4KB
- def_bool y
- depends on PPC_4K_PAGES
-
-config PAGE_SIZE_16KB
- def_bool y
- depends on PPC_16K_PAGES
-
-config PAGE_SIZE_64KB
- def_bool y
- depends on PPC_64K_PAGES
-
-config PAGE_SIZE_256KB
- def_bool y
- depends on PPC_256K_PAGES
-
-config PPC_PAGE_SHIFT
- int
- default 18 if PPC_256K_PAGES
- default 16 if PPC_64K_PAGES
- default 14 if PPC_16K_PAGES
- default 12
-
config THREAD_SHIFT
int "Thread shift" if EXPERT
range 13 15
@@ -891,7 +872,7 @@ config DATA_SHIFT
default 23 if (DEBUG_PAGEALLOC || KFENCE) && PPC_8xx && PIN_TLB_DATA
default 19 if (DEBUG_PAGEALLOC || KFENCE) && PPC_8xx
default 24 if STRICT_KERNEL_RWX && PPC_85xx
- default PPC_PAGE_SHIFT
+ default PAGE_SHIFT
help
On Book3S 32 (603+), DBATs are used to map kernel text and rodata RO.
Smaller is the alignment, greater is the number of necessary DBATs.
@@ -21,7 +21,7 @@
* page size. When using 64K pages however, whether we are really supporting
* 64K pages in HW or not is irrelevant to those definitions.
*/
-#define PAGE_SHIFT CONFIG_PPC_PAGE_SHIFT
+#define PAGE_SHIFT CONFIG_PAGE_SHIFT
#define PAGE_SIZE (ASM_CONST(1) << PAGE_SHIFT)
#ifndef __ASSEMBLY__
@@ -139,7 +139,7 @@ LX_CONFIG(CONFIG_ARM64_64K_PAGES)
if IS_BUILTIN(CONFIG_ARM64):
LX_VALUE(CONFIG_ARM64_PA_BITS)
LX_VALUE(CONFIG_ARM64_VA_BITS)
- LX_VALUE(CONFIG_ARM64_PAGE_SHIFT)
+ LX_VALUE(CONFIG_PAGE_SHIFT)
LX_VALUE(CONFIG_ARCH_FORCE_MAX_ORDER)
LX_CONFIG(CONFIG_SPARSEMEM)
LX_CONFIG(CONFIG_SPARSEMEM_EXTREME)
@@ -41,7 +41,7 @@ class aarch64_page_ops():
self.SECTION_SIZE_BITS = 27
self.MAX_PHYSMEM_BITS = constants.LX_CONFIG_ARM64_VA_BITS
- self.PAGE_SHIFT = constants.LX_CONFIG_ARM64_PAGE_SHIFT
+ self.PAGE_SHIFT = constants.LX_CONFIG_PAGE_SHIFT
self.PAGE_SIZE = 1 << self.PAGE_SHIFT
self.PAGE_MASK = (~(self.PAGE_SIZE - 1)) & ((1 << 64) - 1)