include/asm-sparc64/pstate.h

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 1 /* $Id: pstate.h,v 1.6 1997/06/25 07:39:45 jj Exp $ */
 2 #ifndef _SPARC64_PSTATE_H
 3 #define _SPARC64_PSTATE_H
 4
 5 /* The V9 PSTATE Register (with SpitFire extensions).
 6  *
 7  * -----------------------------------------------------------------------
 8  * | Resv | IG | MG | CLE | TLE | MM | RED | PEF | AM | PRIV | IE | AG |
 9  * -----------------------------------------------------------------------
 10  * 63 12 11 10 9 8 7 6 5 4 3 2 1 0
 11  */
 12 #define PSTATE_IG 0x0000000000000800/* Interrupt Globals. */
 13 #define PSTATE_MG 0x0000000000000400/* MMU Globals. */
 14 #define PSTATE_CLE 0x0000000000000200/* Current Little Endian. */
 15 #define PSTATE_TLE 0x0000000000000100/* Trap Little Endian. */
 16 #define PSTATE_MM 0x00000000000000c0/* Memory Model. */
 17 #define PSTATE_TSO 0x0000000000000000/* MM: Total Store Order */
 18 #define PSTATE_PSO 0x0000000000000040/* MM: Partial Store Order */
 19 #define PSTATE_RMO 0x0000000000000080/* MM: Relaxed Memory Order */
 20 #define PSTATE_RED 0x0000000000000020/* Reset Error Debug State. */
 21 #define PSTATE_PEF 0x0000000000000010/* Floating Point Enable. */
 22 #define PSTATE_AM 0x0000000000000008/* Address Mask. */
 23 #define PSTATE_PRIV 0x0000000000000004/* Privilege. */
 24 #define PSTATE_IE 0x0000000000000002/* Interrupt Enable. */
 25 #define PSTATE_AG 0x0000000000000001/* Alternate Globals. */
 26
 27 /* The V9 TSTATE Register (with SpitFire and Linux extensions).
 28  *
 29  * ---------------------------------------------------------------
 30  * | Resv | CCR | ASI | %pil | PSTATE | Resv | CWP |
 31  * ---------------------------------------------------------------
 32  * 63 40 39 32 31 24 23 20 19 8 7 5 4 0
 33  */
 34 #define TSTATE_CCR 0x000000ff00000000/* Condition Codes. */
 35 #define TSTATE_XCC 0x000000f000000000/* Condition Codes. */
 36 #define TSTATE_XNEG 0x0000008000000000/* %xcc Negative. */
 37 #define TSTATE_XZERO 0x0000004000000000/* %xcc Zero. */
 38 #define TSTATE_XOVFL 0x0000002000000000/* %xcc Overflow. */
 39 #define TSTATE_XCARRY 0x0000001000000000/* %xcc Carry. */
 40 #define TSTATE_ICC 0x0000000f00000000/* Condition Codes. */
 41 #define TSTATE_INEG 0x0000000800000000/* %icc Negative. */
 42 #define TSTATE_IZERO 0x0000000400000000/* %icc Zero. */
 43 #define TSTATE_IOVFL 0x0000000200000000/* %icc Overflow. */
 44 #define TSTATE_ICARRY 0x0000000100000000/* %icc Carry. */
 45 #define TSTATE_ASI 0x00000000ff000000/* Address Space Identifier. */
 46 #define TSTATE_PIL 0x0000000000f00000/* %pil (Linux traps set this) */
 47 #define TSTATE_PSTATE 0x00000000000fff00/* PSTATE. */
 48 #define TSTATE_IG 0x0000000000080000/* Interrupt Globals. */
 49 #define TSTATE_MG 0x0000000000040000/* MMU Globals. */
 50 #define TSTATE_CLE 0x0000000000020000/* Current Little Endian. */
 51 #define TSTATE_TLE 0x0000000000010000/* Trap Little Endian. */
 52 #define TSTATE_MM 0x000000000000c000/* Memory Model. */
 53 #define TSTATE_TSO 0x0000000000000000/* MM: Total Store Order */
 54 #define TSTATE_PSO 0x0000000000004000/* MM: Partial Store Order */
 55 #define TSTATE_RMO 0x0000000000008000/* MM: Relaxed Memory Order */
 56 #define TSTATE_RED 0x0000000000002000/* Reset Error Debug State. */
 57 #define TSTATE_PEF 0x0000000000001000/* Floating Point Enable. */
 58 #define TSTATE_AM 0x0000000000000800/* Address Mask. */
 59 #define TSTATE_PRIV 0x0000000000000400/* Privilege. */
 60 #define TSTATE_IE 0x0000000000000200/* Interrupt Enable. */
 61 #define TSTATE_AG 0x0000000000000100/* Alternate Globals. */
 62 #define TSTATE_CWP 0x000000000000001f/* Current Window Pointer. */
 63
 64 /* Floating-Point Registers State Register.
 65  *
 66  * --------------------------------
 67  * | Resv | FEF | DU | DL |
 68  * --------------------------------
 69  * 63 3 2 1 0
 70  */
 71 #define FPRS_FEF 0x0000000000000004/* Enable Floating Point. */
 72 #define FPRS_DU 0x0000000000000002/* Dirty Upper. */
 73 #define FPRS_DL 0x0000000000000001/* Dirty Lower. */
 74
 75 /* Version Register.
 76  *
 77  * ------------------------------------------------------
 78  * | MANUF | IMPL | MASK | Resv | MAXTL | Resv | MAXWIN |
 79  * ------------------------------------------------------
 80  * 63 48 47 32 31 24 23 16 15 8 7 5 4 0
 81  */
 82 #define VERS_MANUF 0xffff000000000000/* Manufacturer. */
 83 #define VERS_IMPL 0x0000ffff00000000/* Implementation. */
 84 #define VERS_MASK 0x00000000ff000000/* Mask Set Revision. */
 85 #define VERS_MAXTL 0x000000000000ff00/* Maximum Trap Level. */
 86 #define VERS_MAXWIN 0x000000000000001f/* Maximum Reg Window Index. */
 87
 88 #if defined(__KERNEL__) && !defined(__ASSEMBLY__)
 89 #define set_pstate(bits) \
 90  __asm__ __volatile__( \
 91 "rdpr %%pstate, %%g1\n\t" \
 92 "or %%g1, %0, %%g1\n\t" \
 93 "wrpr %%g1, 0x0, %%pstate\n\t" \
 94  :/* no outputs */ \
 95  :"i" (bits) \
 96  :"g1")
 97
 98 #define clear_pstate(bits) \
 99  __asm__ __volatile__( \
 100 "rdpr %%pstate, %%g1\n\t" \
 101 "andn %%g1, %0, %%g1\n\t" \
 102 "wrpr %%g1, 0x0, %%pstate\n\t" \
 103  :/* no outputs */ \
 104  :"i" (bits) \
 105  :"g1")
 106
 107 #define change_pstate(bits) \
 108  __asm__ __volatile__( \
 109 "rdpr %%pstate, %%g1\n\t" \
 110 "wrpr %%g1, %0, %%pstate\n\t" \
 111  :/* no outputs */ \
 112  :"i" (bits) \
 113  :"g1")
 114 #endif
 115
 116 #endif/* !(_SPARC64_PSTATE_H) */