diff options
| author | James Morse <james.morse@arm.com> | 2015-07-21 15:23:27 +0300 |
|---|---|---|
| committer | Will Deacon <will.deacon@arm.com> | 2015-07-27 13:08:41 +0300 |
| commit | 870828e57b141eff76a5325f20e4691dd2a599b1 (patch) | |
| tree | 68b660c89ce5b145a726fb674662024936e7a870 /arch/arm64/include/asm | |
| parent | fc032421ef4a825660fcc4d11672bc2dea202893 (diff) | |
| download | linux-870828e57b141eff76a5325f20e4691dd2a599b1.tar.xz | |
arm64: kernel: Move config_sctlr_el1
Later patches need config_sctlr_el1 to set/clear bits in the sctlr_el1
register.
This patch moves this function into header a file.
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: James Morse <james.morse@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Diffstat (limited to 'arch/arm64/include/asm')
| -rw-r--r-- | arch/arm64/include/asm/cputype.h | 3 | ||||
| -rw-r--r-- | arch/arm64/include/asm/sysreg.h | 12 |
2 files changed, 12 insertions, 3 deletions
diff --git a/arch/arm64/include/asm/cputype.h b/arch/arm64/include/asm/cputype.h index a84ec605bed8..ee6403df9fe4 100644 --- a/arch/arm64/include/asm/cputype.h +++ b/arch/arm64/include/asm/cputype.h @@ -81,9 +81,6 @@ #define ID_AA64MMFR0_BIGEND(mmfr0) \ (((mmfr0) & ID_AA64MMFR0_BIGEND_MASK) >> ID_AA64MMFR0_BIGEND_SHIFT) -#define SCTLR_EL1_CP15BEN (0x1 << 5) -#define SCTLR_EL1_SED (0x1 << 8) - #ifndef __ASSEMBLY__ /* diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h index 5c89df0acbcb..56391fbae1e1 100644 --- a/arch/arm64/include/asm/sysreg.h +++ b/arch/arm64/include/asm/sysreg.h @@ -20,6 +20,9 @@ #ifndef __ASM_SYSREG_H #define __ASM_SYSREG_H +#define SCTLR_EL1_CP15BEN (0x1 << 5) +#define SCTLR_EL1_SED (0x1 << 8) + #define sys_reg(op0, op1, crn, crm, op2) \ ((((op0)-2)<<19)|((op1)<<16)|((crn)<<12)|((crm)<<8)|((op2)<<5)) @@ -55,6 +58,15 @@ asm( " .endm\n" ); +static inline void config_sctlr_el1(u32 clear, u32 set) +{ + u32 val; + + asm volatile("mrs %0, sctlr_el1" : "=r" (val)); + val &= ~clear; + val |= set; + asm volatile("msr sctlr_el1, %0" : : "r" (val)); +} #endif #endif /* __ASM_SYSREG_H */ |