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/arm/include/asm/smp_scu.h | 48 +++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 kernel/arch/arm/include/asm/smp_scu.h (limited to 'kernel/arch/arm/include/asm/smp_scu.h') diff --git a/kernel/arch/arm/include/asm/smp_scu.h b/kernel/arch/arm/include/asm/smp_scu.h new file mode 100644 index 000000000..bfe163c40 --- /dev/null +++ b/kernel/arch/arm/include/asm/smp_scu.h @@ -0,0 +1,48 @@ +#ifndef __ASMARM_ARCH_SCU_H +#define __ASMARM_ARCH_SCU_H + +#define SCU_PM_NORMAL 0 +#define SCU_PM_DORMANT 2 +#define SCU_PM_POWEROFF 3 + +#ifndef __ASSEMBLER__ + +#include + +static inline bool scu_a9_has_base(void) +{ + return read_cpuid_part() == ARM_CPU_PART_CORTEX_A9; +} + +static inline unsigned long scu_a9_get_base(void) +{ + unsigned long pa; + + asm("mrc p15, 4, %0, c15, c0, 0" : "=r" (pa)); + + return pa; +} + +#ifdef CONFIG_HAVE_ARM_SCU +unsigned int scu_get_core_count(void __iomem *); +int scu_power_mode(void __iomem *, unsigned int); +#else +static inline unsigned int scu_get_core_count(void __iomem *scu_base) +{ + return 0; +} +static inline int scu_power_mode(void __iomem *scu_base, unsigned int mode) +{ + return -EINVAL; +} +#endif + +#if defined(CONFIG_SMP) && defined(CONFIG_HAVE_ARM_SCU) +void scu_enable(void __iomem *scu_base); +#else +static inline void scu_enable(void __iomem *scu_base) {} +#endif + +#endif + +#endif -- cgit 1.2.3-korg