arm64: kernel: Move config_sctlr_el1

[linux-2.6-block.git] / arch / arm64 / include / asm / sysreg.h

diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h
index 5c89df0acbcb2694890c671682a9dc5c9e40d339..56391fbae1e11625280614d6e7e75abd77111274 100644 (file)
--- 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 */