arch: define CONFIG_PAGE_SIZE_*KB on all architectures

arndb · arndb · commit 5394f1e9b687 · 2024-03-06T19:29:09.000+01:00
Most architectures only support a single hardcoded page size. In order
to ensure that each one of these sets the corresponding Kconfig symbols,
change over the PAGE_SHIFT definition to the common one and allow
only the hardware page size to be selected.

Acked-by: Guo Ren &lt;guoren@kernel.org&gt;
Acked-by: Heiko Carstens &lt;hca@linux.ibm.com&gt;
Acked-by: Stafford Horne &lt;shorne@gmail.com&gt;
Acked-by: Johannes Berg &lt;johannes@sipsolutions.net&gt;
Acked-by: Geert Uytterhoeven &lt;geert@linux-m68k.org&gt;
Reviewed-by: Thomas Gleixner &lt;tglx@linutronix.de&gt;
Signed-off-by: Arnd Bergmann &lt;arnd@arndb.de&gt;
diff --git a/arch/alpha/Kconfig b/arch/alpha/Kconfig
@@ -14,6 +14,7 @@ config ALPHA
 	select PCI_DOMAINS if PCI
 	select PCI_SYSCALL if PCI
 	select HAVE_ASM_MODVERSIONS
+	select HAVE_PAGE_SIZE_8KB
 	select HAVE_PCSPKR_PLATFORM
 	select HAVE_PERF_EVENTS
 	select NEED_DMA_MAP_STATE
diff --git a/arch/alpha/include/asm/page.h b/arch/alpha/include/asm/page.h
@@ -6,7 +6,7 @@
 #include <asm/pal.h>
 
 /* PAGE_SHIFT determines the page size */
-#define PAGE_SHIFT	13
+#define PAGE_SHIFT	CONFIG_PAGE_SHIFT
 #define PAGE_SIZE	(_AC(1,UL) << PAGE_SHIFT)
 #define PAGE_MASK	(~(PAGE_SIZE-1))
 
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
@@ -116,6 +116,7 @@ config ARM
 	select HAVE_MOD_ARCH_SPECIFIC
 	select HAVE_NMI
 	select HAVE_OPTPROBES if !THUMB2_KERNEL
+	select HAVE_PAGE_SIZE_4KB
 	select HAVE_PCI if MMU
 	select HAVE_PERF_EVENTS
 	select HAVE_PERF_REGS
diff --git a/arch/arm/include/asm/page.h b/arch/arm/include/asm/page.h
@@ -8,7 +8,7 @@
 #define _ASMARM_PAGE_H
 
 /* PAGE_SHIFT determines the page size */
-#define PAGE_SHIFT		12
+#define PAGE_SHIFT		CONFIG_PAGE_SHIFT
 #define PAGE_SIZE		(_AC(1,UL) << PAGE_SHIFT)
 #define PAGE_MASK		(~((1 << PAGE_SHIFT) - 1))
 
diff --git a/arch/csky/Kconfig b/arch/csky/Kconfig
@@ -89,6 +89,7 @@ config CSKY
 	select HAVE_KPROBES if !CPU_CK610
 	select HAVE_KPROBES_ON_FTRACE if !CPU_CK610
 	select HAVE_KRETPROBES if !CPU_CK610
+	select HAVE_PAGE_SIZE_4KB
 	select HAVE_PERF_EVENTS
 	select HAVE_PERF_REGS
 	select HAVE_PERF_USER_STACK_DUMP
diff --git a/arch/csky/include/asm/page.h b/arch/csky/include/asm/page.h
@@ -10,7 +10,7 @@
 /*
  * PAGE_SHIFT determines the page size: 4KB
  */
-#define PAGE_SHIFT	12
+#define PAGE_SHIFT	CONFIG_PAGE_SHIFT
 #define PAGE_SIZE	(_AC(1, UL) << PAGE_SHIFT)
 #define PAGE_MASK	(~(PAGE_SIZE - 1))
 #define THREAD_SIZE	(PAGE_SIZE * 2)
diff --git a/arch/m68k/Kconfig b/arch/m68k/Kconfig
@@ -84,12 +84,15 @@ config MMU
 
 config MMU_MOTOROLA
 	bool
+	select HAVE_PAGE_SIZE_4KB
 
 config MMU_COLDFIRE
+	select HAVE_PAGE_SIZE_8KB
 	bool
 
 config MMU_SUN3
 	bool
+	select HAVE_PAGE_SIZE_8KB
 	depends on MMU && !MMU_MOTOROLA && !MMU_COLDFIRE
 
 config ARCH_SUPPORTS_KEXEC
diff --git a/arch/m68k/Kconfig.cpu b/arch/m68k/Kconfig.cpu
@@ -30,6 +30,7 @@ config COLDFIRE
 	select GENERIC_CSUM
 	select GPIOLIB
 	select HAVE_LEGACY_CLK
+	select HAVE_PAGE_SIZE_8KB if !MMU
 
 endchoice
 
@@ -45,6 +46,7 @@ config M68000
 	select GENERIC_CSUM
 	select CPU_NO_EFFICIENT_FFS
 	select HAVE_ARCH_HASH
+	select HAVE_PAGE_SIZE_4KB
 	select LEGACY_TIMER_TICK
 	help
 	  The Freescale (was Motorola) 68000 CPU is the first generation of
diff --git a/arch/m68k/include/asm/page.h b/arch/m68k/include/asm/page.h
@@ -7,11 +7,7 @@
 #include <asm/page_offset.h>
 
 /* PAGE_SHIFT determines the page size */
-#if defined(CONFIG_SUN3) || defined(CONFIG_COLDFIRE)
-#define PAGE_SHIFT	13
-#else
-#define PAGE_SHIFT	12
-#endif
+#define PAGE_SHIFT	CONFIG_PAGE_SHIFT
 #define PAGE_SIZE	(_AC(1, UL) << PAGE_SHIFT)
 #define PAGE_MASK	(~(PAGE_SIZE-1))
 #define PAGE_OFFSET	(PAGE_OFFSET_RAW)
diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig
@@ -31,6 +31,7 @@ config MICROBLAZE
 	select HAVE_FTRACE_MCOUNT_RECORD
 	select HAVE_FUNCTION_GRAPH_TRACER
 	select HAVE_FUNCTION_TRACER
+	select HAVE_PAGE_SIZE_4KB
 	select HAVE_PCI
 	select IRQ_DOMAIN
 	select XILINX_INTC
diff --git a/arch/microblaze/include/asm/page.h b/arch/microblaze/include/asm/page.h
@@ -20,7 +20,7 @@
 #ifdef __KERNEL__
 
 /* PAGE_SHIFT determines the page size */
-#define PAGE_SHIFT		12
+#define PAGE_SHIFT	CONFIG_PAGE_SHIFT
 #define PAGE_SIZE	(ASM_CONST(1) << PAGE_SHIFT)
 #define PAGE_MASK	(~(PAGE_SIZE-1))
 
diff --git a/arch/nios2/Kconfig b/arch/nios2/Kconfig
@@ -15,6 +15,7 @@ config NIOS2
 	select GENERIC_IRQ_SHOW
 	select HAVE_ARCH_TRACEHOOK
 	select HAVE_ARCH_KGDB
+	select HAVE_PAGE_SIZE_4KB
 	select IRQ_DOMAIN
 	select LOCK_MM_AND_FIND_VMA
 	select MODULES_USE_ELF_RELA
diff --git a/arch/nios2/include/asm/page.h b/arch/nios2/include/asm/page.h
@@ -21,7 +21,7 @@
 /*
  * PAGE_SHIFT determines the page size
  */
-#define PAGE_SHIFT	12
+#define PAGE_SHIFT	CONFIG_PAGE_SHIFT
 #define PAGE_SIZE	(_AC(1, UL) << PAGE_SHIFT)
 #define PAGE_MASK	(~(PAGE_SIZE - 1))
 
diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
@@ -25,6 +25,7 @@ config OPENRISC
 	select GENERIC_CPU_DEVICES
 	select HAVE_PCI
 	select HAVE_UID16
+	select HAVE_PAGE_SIZE_8KB
 	select GENERIC_ATOMIC64
 	select GENERIC_CLOCKEVENTS_BROADCAST
 	select GENERIC_SMP_IDLE_THREAD
diff --git a/arch/openrisc/include/asm/page.h b/arch/openrisc/include/asm/page.h
@@ -18,7 +18,7 @@
 
 /* PAGE_SHIFT determines the page size */
 
-#define PAGE_SHIFT      13
+#define PAGE_SHIFT      CONFIG_PAGE_SHIFT
 #ifdef __ASSEMBLY__
 #define PAGE_SIZE       (1 << PAGE_SHIFT)
 #else
diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig
@@ -136,6 +136,7 @@ config RISCV
 	select HAVE_LD_DEAD_CODE_DATA_ELIMINATION if !LD_IS_LLD
 	select HAVE_MOVE_PMD
 	select HAVE_MOVE_PUD
+	select HAVE_PAGE_SIZE_4KB
 	select HAVE_PCI
 	select HAVE_PERF_EVENTS
 	select HAVE_PERF_REGS
diff --git a/arch/riscv/include/asm/page.h b/arch/riscv/include/asm/page.h
@@ -12,7 +12,7 @@
 #include <linux/pfn.h>
 #include <linux/const.h>
 
-#define PAGE_SHIFT	(12)
+#define PAGE_SHIFT	CONFIG_PAGE_SHIFT
 #define PAGE_SIZE	(_AC(1, UL) << PAGE_SHIFT)
 #define PAGE_MASK	(~(PAGE_SIZE - 1))
 
diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig
@@ -199,6 +199,7 @@ config S390
 	select HAVE_MOD_ARCH_SPECIFIC
 	select HAVE_NMI
 	select HAVE_NOP_MCOUNT
+	select HAVE_PAGE_SIZE_4KB
 	select HAVE_PCI
 	select HAVE_PERF_EVENTS
 	select HAVE_PERF_REGS
diff --git a/arch/s390/include/asm/page.h b/arch/s390/include/asm/page.h
@@ -11,7 +11,7 @@
 #include <linux/const.h>
 #include <asm/types.h>
 
-#define _PAGE_SHIFT	12
+#define _PAGE_SHIFT	CONFIG_PAGE_SHIFT
 #define _PAGE_SIZE	(_AC(1, UL) << _PAGE_SHIFT)
 #define _PAGE_MASK	(~(_PAGE_SIZE - 1))
 
diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig
@@ -58,6 +58,7 @@ config SPARC32
 	select DMA_DIRECT_REMAP
 	select GENERIC_ATOMIC64
 	select HAVE_UID16
+	select HAVE_PAGE_SIZE_4KB
 	select LOCK_MM_AND_FIND_VMA
 	select OLD_SIGACTION
 	select ZONE_DMA
@@ -75,6 +76,7 @@ config SPARC64
 	select HAVE_ARCH_TRANSPARENT_HUGEPAGE
 	select HAVE_DYNAMIC_FTRACE
 	select HAVE_FTRACE_MCOUNT_RECORD
+	select HAVE_PAGE_SIZE_8KB
 	select HAVE_SYSCALL_TRACEPOINTS
 	select HAVE_CONTEXT_TRACKING_USER
 	select HAVE_TIF_NOHZ
diff --git a/arch/sparc/include/asm/page_32.h b/arch/sparc/include/asm/page_32.h
@@ -11,7 +11,7 @@
 
 #include <linux/const.h>
 
-#define PAGE_SHIFT   12
+#define PAGE_SHIFT   CONFIG_PAGE_SHIFT
 #define PAGE_SIZE    (_AC(1, UL) << PAGE_SHIFT)
 #define PAGE_MASK    (~(PAGE_SIZE-1))
 
diff --git a/arch/sparc/include/asm/page_64.h b/arch/sparc/include/asm/page_64.h
@@ -4,8 +4,7 @@
 
 #include <linux/const.h>
 
-#define PAGE_SHIFT   13
-
+#define PAGE_SHIFT   CONFIG_PAGE_SHIFT
 #define PAGE_SIZE    (_AC(1,UL) << PAGE_SHIFT)
 #define PAGE_MASK    (~(PAGE_SIZE-1))
 
diff --git a/arch/um/Kconfig b/arch/um/Kconfig
@@ -20,6 +20,7 @@ config UML
 	select HAVE_UID16
 	select HAVE_DEBUG_KMEMLEAK
 	select HAVE_DEBUG_BUGVERBOSE
+	select HAVE_PAGE_SIZE_4KB
 	select NO_DMA if !UML_DMA_EMULATION
 	select OF_EARLY_FLATTREE if OF
 	select GENERIC_IRQ_SHOW
diff --git a/arch/um/include/asm/page.h b/arch/um/include/asm/page.h
@@ -10,7 +10,7 @@
 #include <linux/const.h>
 
 /* PAGE_SHIFT determines the page size */
-#define PAGE_SHIFT	12
+#define PAGE_SHIFT	CONFIG_PAGE_SHIFT
 #define PAGE_SIZE	(_AC(1, UL) << PAGE_SHIFT)
 #define PAGE_MASK	(~(PAGE_SIZE-1))
 
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
@@ -255,6 +255,7 @@ config X86
 	select HAVE_NOINSTR_VALIDATION		if HAVE_OBJTOOL
 	select HAVE_OBJTOOL			if X86_64
 	select HAVE_OPTPROBES
+	select HAVE_PAGE_SIZE_4KB
 	select HAVE_PCSPKR_PLATFORM
 	select HAVE_PERF_EVENTS
 	select HAVE_PERF_EVENTS_NMI
diff --git a/arch/x86/include/asm/page_types.h b/arch/x86/include/asm/page_types.h
@@ -7,7 +7,7 @@
 #include <linux/mem_encrypt.h>
 
 /* PAGE_SHIFT determines the page size */
-#define PAGE_SHIFT		12
+#define PAGE_SHIFT		CONFIG_PAGE_SHIFT
 #define PAGE_SIZE		(_AC(1,UL) << PAGE_SHIFT)
 #define PAGE_MASK		(~(PAGE_SIZE-1))
 
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
@@ -44,6 +44,7 @@ config XTENSA
 	select HAVE_GCC_PLUGINS if GCC_VERSION >= 120000
 	select HAVE_HW_BREAKPOINT if PERF_EVENTS
 	select HAVE_IRQ_TIME_ACCOUNTING
+	select HAVE_PAGE_SIZE_4KB
 	select HAVE_PCI
 	select HAVE_PERF_EVENTS
 	select HAVE_STACKPROTECTOR
diff --git a/arch/xtensa/include/asm/page.h b/arch/xtensa/include/asm/page.h
@@ -22,7 +22,7 @@
  * PAGE_SHIFT determines the page size
  */
 
-#define PAGE_SHIFT	12
+#define PAGE_SHIFT	CONFIG_PAGE_SHIFT
 #define PAGE_SIZE	(__XTENSA_UL_CONST(1) << PAGE_SHIFT)
 #define PAGE_MASK	(~(PAGE_SIZE-1))
 
