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author | 2015-08-04 12:17:53 -0700 | |
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committer | 2015-08-04 15:44:42 -0700 | |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/arm/include/asm/smp_scu.h | |
parent | 98260f3884f4a202f9ca5eabed40b1354c489b29 (diff) |
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 <bigeasy@linutronix.de>
Date: Sat Jul 25 12:13:34 2015 +0200
Prepare v4.1.3-rt3
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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 <yunhong.jiang@intel.com>
Diffstat (limited to 'kernel/arch/arm/include/asm/smp_scu.h')
-rw-r--r-- | kernel/arch/arm/include/asm/smp_scu.h | 48 |
1 files changed, 48 insertions, 0 deletions
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 <asm/cputype.h> + +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 |