From 195864cf3d6f5b6b743793bda3aaa2ff65d322ae Mon Sep 17 00:00:00 2001 From: Russell King Date: Thu, 19 Jan 2012 10:05:41 +0000 Subject: [PATCH] ARM: move CP15 definitions to separate header file Avoid namespace conflicts with drivers over the CP15 definitions by moving CP15 related prototypes and definitions to a private header file. Acked-by: Stephen Warren Tested-by: Stephen Warren [Tegra] Acked-by: H Hartley Sweeten Tested-by: H Hartley Sweeten [EP93xx] Acked-by: Nicolas Pitre Acked-by: Kukjin Kim Signed-off-by: Russell King --- arch/arm/include/asm/cp15.h | 87 ++++++++++++++++++++++++++++++++ arch/arm/include/asm/system.h | 77 ---------------------------- arch/arm/kernel/fiq.c | 2 +- arch/arm/kernel/head-nommu.S | 2 +- arch/arm/kernel/head.S | 2 +- arch/arm/kernel/setup.c | 2 +- arch/arm/mach-exynos/hotplug.c | 1 + arch/arm/mach-realview/hotplug.c | 1 + arch/arm/mach-tegra/hotplug.c | 1 + arch/arm/mach-vexpress/hotplug.c | 2 +- arch/arm/mm/alignment.c | 2 +- arch/arm/mm/cache-feroceon-l2.c | 1 + arch/arm/mm/cache-tauros2.c | 1 + arch/arm/mm/cache-xsc3l2.c | 2 +- arch/arm/mm/ioremap.c | 1 + arch/arm/mm/mmu.c | 1 + arch/arm/mm/pgd.c | 1 + arch/arm/vfp/vfpmodule.c | 1 + 18 files changed, 103 insertions(+), 84 deletions(-) create mode 100644 arch/arm/include/asm/cp15.h diff --git a/arch/arm/include/asm/cp15.h b/arch/arm/include/asm/cp15.h new file mode 100644 index 00000000000..3dabd8dd404 --- /dev/null +++ b/arch/arm/include/asm/cp15.h @@ -0,0 +1,87 @@ +#ifndef __ASM_ARM_CP15_H +#define __ASM_ARM_CP15_H + +#include + +/* + * CR1 bits (CP#15 CR1) + */ +#define CR_M (1 << 0) /* MMU enable */ +#define CR_A (1 << 1) /* Alignment abort enable */ +#define CR_C (1 << 2) /* Dcache enable */ +#define CR_W (1 << 3) /* Write buffer enable */ +#define CR_P (1 << 4) /* 32-bit exception handler */ +#define CR_D (1 << 5) /* 32-bit data address range */ +#define CR_L (1 << 6) /* Implementation defined */ +#define CR_B (1 << 7) /* Big endian */ +#define CR_S (1 << 8) /* System MMU protection */ +#define CR_R (1 << 9) /* ROM MMU protection */ +#define CR_F (1 << 10) /* Implementation defined */ +#define CR_Z (1 << 11) /* Implementation defined */ +#define CR_I (1 << 12) /* Icache enable */ +#define CR_V (1 << 13) /* Vectors relocated to 0xffff0000 */ +#define CR_RR (1 << 14) /* Round Robin cache replacement */ +#define CR_L4 (1 << 15) /* LDR pc can set T bit */ +#define CR_DT (1 << 16) +#define CR_IT (1 << 18) +#define CR_ST (1 << 19) +#define CR_FI (1 << 21) /* Fast interrupt (lower latency mode) */ +#define CR_U (1 << 22) /* Unaligned access operation */ +#define CR_XP (1 << 23) /* Extended page tables */ +#define CR_VE (1 << 24) /* Vectored interrupts */ +#define CR_EE (1 << 25) /* Exception (Big) Endian */ +#define CR_TRE (1 << 28) /* TEX remap enable */ +#define CR_AFE (1 << 29) /* Access flag enable */ +#define CR_TE (1 << 30) /* Thumb exception enable */ + +#ifndef __ASSEMBLY__ + +#if __LINUX_ARM_ARCH__ >= 4 +#define vectors_high() (cr_alignment & CR_V) +#else +#define vectors_high() (0) +#endif + +extern unsigned long cr_no_alignment; /* defined in entry-armv.S */ +extern unsigned long cr_alignment; /* defined in entry-armv.S */ + +static inline unsigned int get_cr(void) +{ + unsigned int val; + asm("mrc p15, 0, %0, c1, c0, 0 @ get CR" : "=r" (val) : : "cc"); + return val; +} + +static inline void set_cr(unsigned int val) +{ + asm volatile("mcr p15, 0, %0, c1, c0, 0 @ set CR" + : : "r" (val) : "cc"); + isb(); +} + +#ifndef CONFIG_SMP +extern void adjust_cr(unsigned long mask, unsigned long set); +#endif + +#define CPACC_FULL(n) (3 << (n * 2)) +#define CPACC_SVC(n) (1 << (n * 2)) +#define CPACC_DISABLE(n) (0 << (n * 2)) + +static inline unsigned int get_copro_access(void) +{ + unsigned int val; + asm("mrc p15, 0, %0, c1, c0, 2 @ get copro access" + : "=r" (val) : : "cc"); + return val; +} + +static inline void set_copro_access(unsigned int val) +{ + asm volatile("mcr p15, 0, %0, c1, c0, 2 @ set copro access" + : : "r" (val) : "cc"); + isb(); +} + +#endif + +#endif diff --git a/arch/arm/include/asm/system.h b/arch/arm/include/asm/system.h index e4c96cc6ec0..774c41e8add 100644 --- a/arch/arm/include/asm/system.h +++ b/arch/arm/include/asm/system.h @@ -14,37 +14,6 @@ #define CPU_ARCH_ARMv6 8 #define CPU_ARCH_ARMv7 9 -/* - * CR1 bits (CP#15 CR1) - */ -#define CR_M (1 << 0) /* MMU enable */ -#define CR_A (1 << 1) /* Alignment abort enable */ -#define CR_C (1 << 2) /* Dcache enable */ -#define CR_W (1 << 3) /* Write buffer enable */ -#define CR_P (1 << 4) /* 32-bit exception handler */ -#define CR_D (1 << 5) /* 32-bit data address range */ -#define CR_L (1 << 6) /* Implementation defined */ -#define CR_B (1 << 7) /* Big endian */ -#define CR_S (1 << 8) /* System MMU protection */ -#define CR_R (1 << 9) /* ROM MMU protection */ -#define CR_F (1 << 10) /* Implementation defined */ -#define CR_Z (1 << 11) /* Implementation defined */ -#define CR_I (1 << 12) /* Icache enable */ -#define CR_V (1 << 13) /* Vectors relocated to 0xffff0000 */ -#define CR_RR (1 << 14) /* Round Robin cache replacement */ -#define CR_L4 (1 << 15) /* LDR pc can set T bit */ -#define CR_DT (1 << 16) -#define CR_IT (1 << 18) -#define CR_ST (1 << 19) -#define CR_FI (1 << 21) /* Fast interrupt (lower latency mode) */ -#define CR_U (1 << 22) /* Unaligned access operation */ -#define CR_XP (1 << 23) /* Extended page tables */ -#define CR_VE (1 << 24) /* Vectored interrupts */ -#define CR_EE (1 << 25) /* Exception (Big) Endian */ -#define CR_TRE (1 << 28) /* TEX remap enable */ -#define CR_AFE (1 << 29) /* Access flag enable */ -#define CR_TE (1 << 30) /* Thumb exception enable */ - /* * This is used to ensure the compiler did actually allocate the register we * asked it for some inline assembly sequences. Apparently we can't trust @@ -119,12 +88,6 @@ extern void (*arm_pm_restart)(char str, const char *cmd); extern unsigned int user_debug; -#if __LINUX_ARM_ARCH__ >= 4 -#define vectors_high() (cr_alignment & CR_V) -#else -#define vectors_high() (0) -#endif - #if __LINUX_ARM_ARCH__ >= 7 || \ (__LINUX_ARM_ARCH__ == 6 && defined(CONFIG_CPU_32v6K)) #define sev() __asm__ __volatile__ ("sev" : : : "memory") @@ -185,46 +148,6 @@ extern unsigned int user_debug; #define set_mb(var, value) do { var = value; smp_mb(); } while (0) #define nop() __asm__ __volatile__("mov\tr0,r0\t@ nop\n\t"); -extern unsigned long cr_no_alignment; /* defined in entry-armv.S */ -extern unsigned long cr_alignment; /* defined in entry-armv.S */ - -static inline unsigned int get_cr(void) -{ - unsigned int val; - asm("mrc p15, 0, %0, c1, c0, 0 @ get CR" : "=r" (val) : : "cc"); - return val; -} - -static inline void set_cr(unsigned int val) -{ - asm volatile("mcr p15, 0, %0, c1, c0, 0 @ set CR" - : : "r" (val) : "cc"); - isb(); -} - -#ifndef CONFIG_SMP -extern void adjust_cr(unsigned long mask, unsigned long set); -#endif - -#define CPACC_FULL(n) (3 << (n * 2)) -#define CPACC_SVC(n) (1 << (n * 2)) -#define CPACC_DISABLE(n) (0 << (n * 2)) - -static inline unsigned int get_copro_access(void) -{ - unsigned int val; - asm("mrc p15, 0, %0, c1, c0, 2 @ get copro access" - : "=r" (val) : : "cc"); - return val; -} - -static inline void set_copro_access(unsigned int val) -{ - asm volatile("mcr p15, 0, %0, c1, c0, 2 @ set copro access" - : : "r" (val) : "cc"); - isb(); -} - /* * switch_mm() may do a full cache flush over the context switch, * so enable interrupts over the context switch to avoid high diff --git a/arch/arm/kernel/fiq.c b/arch/arm/kernel/fiq.c index 4c164ece589..c32f8456aa0 100644 --- a/arch/arm/kernel/fiq.c +++ b/arch/arm/kernel/fiq.c @@ -42,9 +42,9 @@ #include #include +#include #include #include -#include #include static unsigned long no_fiq_insn; diff --git a/arch/arm/kernel/head-nommu.S b/arch/arm/kernel/head-nommu.S index d46f25968be..278cfc144f4 100644 --- a/arch/arm/kernel/head-nommu.S +++ b/arch/arm/kernel/head-nommu.S @@ -17,8 +17,8 @@ #include #include #include +#include #include -#include /* * Kernel startup entry point. diff --git a/arch/arm/kernel/head.S b/arch/arm/kernel/head.S index 6d579114406..a2e9694a68e 100644 --- a/arch/arm/kernel/head.S +++ b/arch/arm/kernel/head.S @@ -15,12 +15,12 @@ #include #include +#include #include #include #include #include #include -#include #include #ifdef CONFIG_DEBUG_LL diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c index 9b65cb4589e..e5c37fc1d1d 100644 --- a/arch/arm/kernel/setup.c +++ b/arch/arm/kernel/setup.c @@ -34,6 +34,7 @@ #include #include +#include #include #include #include @@ -45,7 +46,6 @@ #include #include #include -#include #include #include diff --git a/arch/arm/mach-exynos/hotplug.c b/arch/arm/mach-exynos/hotplug.c index da70e7e3993..c9146fa7f22 100644 --- a/arch/arm/mach-exynos/hotplug.c +++ b/arch/arm/mach-exynos/hotplug.c @@ -16,6 +16,7 @@ #include #include +#include #include diff --git a/arch/arm/mach-realview/hotplug.c b/arch/arm/mach-realview/hotplug.c index ac1aed2a8da..5e64fbf8d0e 100644 --- a/arch/arm/mach-realview/hotplug.c +++ b/arch/arm/mach-realview/hotplug.c @@ -13,6 +13,7 @@ #include #include +#include extern volatile int pen_release; diff --git a/arch/arm/mach-tegra/hotplug.c b/arch/arm/mach-tegra/hotplug.c index f3294040d35..d8dc9ddd6d1 100644 --- a/arch/arm/mach-tegra/hotplug.c +++ b/arch/arm/mach-tegra/hotplug.c @@ -13,6 +13,7 @@ #include #include +#include static inline void cpu_enter_lowpower(void) { diff --git a/arch/arm/mach-vexpress/hotplug.c b/arch/arm/mach-vexpress/hotplug.c index 813ee08f96e..7a05548544c 100644 --- a/arch/arm/mach-vexpress/hotplug.c +++ b/arch/arm/mach-vexpress/hotplug.c @@ -13,7 +13,7 @@ #include #include -#include +#include extern volatile int pen_release; diff --git a/arch/arm/mm/alignment.c b/arch/arm/mm/alignment.c index caf14dc059e..78459b8a2a1 100644 --- a/arch/arm/mm/alignment.c +++ b/arch/arm/mm/alignment.c @@ -22,7 +22,7 @@ #include #include -#include +#include #include #include "fault.h" diff --git a/arch/arm/mm/cache-feroceon-l2.c b/arch/arm/mm/cache-feroceon-l2.c index e0b0e7a4ec6..dd3d59122cc 100644 --- a/arch/arm/mm/cache-feroceon-l2.c +++ b/arch/arm/mm/cache-feroceon-l2.c @@ -15,6 +15,7 @@ #include #include #include +#include #include /* diff --git a/arch/arm/mm/cache-tauros2.c b/arch/arm/mm/cache-tauros2.c index 50868651890..1fbca05fe90 100644 --- a/arch/arm/mm/cache-tauros2.c +++ b/arch/arm/mm/cache-tauros2.c @@ -16,6 +16,7 @@ #include #include +#include #include diff --git a/arch/arm/mm/cache-xsc3l2.c b/arch/arm/mm/cache-xsc3l2.c index 5a32020471e..6c3edeb66e7 100644 --- a/arch/arm/mm/cache-xsc3l2.c +++ b/arch/arm/mm/cache-xsc3l2.c @@ -18,7 +18,7 @@ */ #include #include -#include +#include #include #include diff --git a/arch/arm/mm/ioremap.c b/arch/arm/mm/ioremap.c index 80632e8d753..66daf17b5e3 100644 --- a/arch/arm/mm/ioremap.c +++ b/arch/arm/mm/ioremap.c @@ -26,6 +26,7 @@ #include #include +#include #include #include #include diff --git a/arch/arm/mm/mmu.c b/arch/arm/mm/mmu.c index c1263adc2a2..f77f1dbbdf5 100644 --- a/arch/arm/mm/mmu.c +++ b/arch/arm/mm/mmu.c @@ -17,6 +17,7 @@ #include #include +#include #include #include #include diff --git a/arch/arm/mm/pgd.c b/arch/arm/mm/pgd.c index a3e78ccabd6..0acb089d0f7 100644 --- a/arch/arm/mm/pgd.c +++ b/arch/arm/mm/pgd.c @@ -12,6 +12,7 @@ #include #include +#include #include #include #include diff --git a/arch/arm/vfp/vfpmodule.c b/arch/arm/vfp/vfpmodule.c index 8f3ccddbdaf..d89068f6d6e 100644 --- a/arch/arm/vfp/vfpmodule.c +++ b/arch/arm/vfp/vfpmodule.c @@ -18,6 +18,7 @@ #include #include +#include #include #include #include -- 2.20.1