diff options
author | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 12:17:53 -0700 |
---|---|---|
committer | Yunhong Jiang <yunhong.jiang@intel.com> | 2015-08-04 15:44:42 -0700 |
commit | 9ca8dbcc65cfc63d6f5ef3312a33184e1d726e00 (patch) | |
tree | 1c9cafbcd35f783a87880a10f85d1a060db1a563 /kernel/arch/parisc/include/asm/special_insns.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/parisc/include/asm/special_insns.h')
-rw-r--r-- | kernel/arch/parisc/include/asm/special_insns.h | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/kernel/arch/parisc/include/asm/special_insns.h b/kernel/arch/parisc/include/asm/special_insns.h new file mode 100644 index 000000000..e15093088 --- /dev/null +++ b/kernel/arch/parisc/include/asm/special_insns.h @@ -0,0 +1,43 @@ +#ifndef __PARISC_SPECIAL_INSNS_H +#define __PARISC_SPECIAL_INSNS_H + +#define mfctl(reg) ({ \ + unsigned long cr; \ + __asm__ __volatile__( \ + "mfctl " #reg ",%0" : \ + "=r" (cr) \ + ); \ + cr; \ +}) + +#define mtctl(gr, cr) \ + __asm__ __volatile__("mtctl %0,%1" \ + : /* no outputs */ \ + : "r" (gr), "i" (cr) : "memory") + +/* these are here to de-mystefy the calling code, and to provide hooks */ +/* which I needed for debugging EIEM problems -PB */ +#define get_eiem() mfctl(15) +static inline void set_eiem(unsigned long val) +{ + mtctl(val, 15); +} + +#define mfsp(reg) ({ \ + unsigned long cr; \ + __asm__ __volatile__( \ + "mfsp " #reg ",%0" : \ + "=r" (cr) \ + ); \ + cr; \ +}) + +#define mtsp(val, cr) \ + { if (__builtin_constant_p(val) && ((val) == 0)) \ + __asm__ __volatile__("mtsp %%r0,%0" : : "i" (cr) : "memory"); \ + else \ + __asm__ __volatile__("mtsp %0,%1" \ + : /* no outputs */ \ + : "r" (val), "i" (cr) : "memory"); } + +#endif /* __PARISC_SPECIAL_INSNS_H */ |