x86, efi: Set runtime_version to the EFI spec revision
[linux/fpc-iii.git] / arch / sparc / include / asm / psr.h
blobe71eb57945e064eb4602464af190278578a1b53e
1 /*
2 * psr.h: This file holds the macros for masking off various parts of
3 * the processor status register on the Sparc. This is valid
4 * for Version 8. On the V9 this is renamed to the PSTATE
5 * register and its members are accessed as fields like
6 * PSTATE.PRIV for the current CPU privilege level.
8 * Copyright (C) 1994 David S. Miller (davem@caip.rutgers.edu)
9 */
10 #ifndef __LINUX_SPARC_PSR_H
11 #define __LINUX_SPARC_PSR_H
13 #include <uapi/asm/psr.h>
16 #ifndef __ASSEMBLY__
17 /* Get the %psr register. */
18 static inline unsigned int get_psr(void)
20 unsigned int psr;
21 __asm__ __volatile__(
22 "rd %%psr, %0\n\t"
23 "nop\n\t"
24 "nop\n\t"
25 "nop\n\t"
26 : "=r" (psr)
27 : /* no inputs */
28 : "memory");
30 return psr;
33 static inline void put_psr(unsigned int new_psr)
35 __asm__ __volatile__(
36 "wr %0, 0x0, %%psr\n\t"
37 "nop\n\t"
38 "nop\n\t"
39 "nop\n\t"
40 : /* no outputs */
41 : "r" (new_psr)
42 : "memory", "cc");
45 /* Get the %fsr register. Be careful, make sure the floating point
46 * enable bit is set in the %psr when you execute this or you will
47 * incur a trap.
50 extern unsigned int fsr_storage;
52 static inline unsigned int get_fsr(void)
54 unsigned int fsr = 0;
56 __asm__ __volatile__(
57 "st %%fsr, %1\n\t"
58 "ld %1, %0\n\t"
59 : "=r" (fsr)
60 : "m" (fsr_storage));
62 return fsr;
65 #endif /* !(__ASSEMBLY__) */
67 #endif /* !(__LINUX_SPARC_PSR_H) */