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| author | David Howells <dhowells@redhat.com> | 2012-03-28 18:30:02 +0100 |
|---|---|---|
| committer | David Howells <dhowells@redhat.com> | 2012-03-28 18:30:02 +0100 |
| commit | 527dcdccd60759ee38e6224c93f87a6194d970ad (patch) | |
| tree | 3c62af76210b19d819b5204108b41a3e8054e755 /arch/parisc/include/asm/special_insns.h | |
| parent | 1c80f22f8d809a9a9024aad7a5bd093f078e77cf (diff) | |
| download | blackbird-op-linux-527dcdccd60759ee38e6224c93f87a6194d970ad.tar.gz blackbird-op-linux-527dcdccd60759ee38e6224c93f87a6194d970ad.zip | |
Disintegrate asm/system.h for PA-RISC
Disintegrate asm/system.h for PA-RISC.
Signed-off-by: David Howells <dhowells@redhat.com>
cc: linux-parisc@vger.kernel.org
Diffstat (limited to 'arch/parisc/include/asm/special_insns.h')
| -rw-r--r-- | arch/parisc/include/asm/special_insns.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/arch/parisc/include/asm/special_insns.h b/arch/parisc/include/asm/special_insns.h new file mode 100644 index 000000000000..d306b75bc77f --- /dev/null +++ b/arch/parisc/include/asm/special_insns.h @@ -0,0 +1,40 @@ +#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(gr, cr) \ + __asm__ __volatile__("mtsp %0,%1" \ + : /* no outputs */ \ + : "r" (gr), "i" (cr) : "memory") + +#endif /* __PARISC_SPECIAL_INSNS_H */ |
