From 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 Mon Sep 17 00:00:00 2001 From: Yunhong Jiang Date: Tue, 4 Aug 2015 12:17:53 -0700 Subject: Add the rt linux 4.1.3-rt3 as base Import the rt linux 4.1.3-rt3 as OPNFV kvm base. It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and the base is: commit 0917f823c59692d751951bf5ea699a2d1e2f26a2 Author: Sebastian Andrzej Siewior Date: Sat Jul 25 12:13:34 2015 +0200 Prepare v4.1.3-rt3 Signed-off-by: Sebastian Andrzej Siewior We lose all the git history this way and it's not good. We should apply another opnfv project repo in future. Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423 Signed-off-by: Yunhong Jiang --- kernel/arch/metag/include/asm/core_reg.h | 35 ++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) create mode 100644 kernel/arch/metag/include/asm/core_reg.h (limited to 'kernel/arch/metag/include/asm/core_reg.h') diff --git a/kernel/arch/metag/include/asm/core_reg.h b/kernel/arch/metag/include/asm/core_reg.h new file mode 100644 index 000000000..bdbc3a51f --- /dev/null +++ b/kernel/arch/metag/include/asm/core_reg.h @@ -0,0 +1,35 @@ +#ifndef __ASM_METAG_CORE_REG_H_ +#define __ASM_METAG_CORE_REG_H_ + +#include + +extern void core_reg_write(int unit, int reg, int thread, unsigned int val); +extern unsigned int core_reg_read(int unit, int reg, int thread); + +/* + * These macros allow direct access from C to any register known to the + * assembler. Example candidates are TXTACTCYC, TXIDLECYC, and TXPRIVEXT. + */ + +#define __core_reg_get(reg) ({ \ + unsigned int __grvalue; \ + asm volatile("MOV %0," #reg \ + : "=r" (__grvalue)); \ + __grvalue; \ +}) + +#define __core_reg_set(reg, value) do { \ + unsigned int __srvalue = (value); \ + asm volatile("MOV " #reg ",%0" \ + : \ + : "r" (__srvalue)); \ +} while (0) + +#define __core_reg_swap(reg, value) do { \ + unsigned int __srvalue = (value); \ + asm volatile("SWAP " #reg ",%0" \ + : "+r" (__srvalue)); \ + (value) = __srvalue; \ +} while (0) + +#endif -- cgit 1.2.3-korg