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Diffstat (limited to 'include/libcpu/cpuIdent.h')
| -rw-r--r-- | include/libcpu/cpuIdent.h | 157 |
1 files changed, 157 insertions, 0 deletions
diff --git a/include/libcpu/cpuIdent.h b/include/libcpu/cpuIdent.h new file mode 100644 index 0000000000..1af5ac03c2 --- /dev/null +++ b/include/libcpu/cpuIdent.h @@ -0,0 +1,157 @@ +/* + * Copyright (C) 1999 Eric Valette (valette@crf.canon.fr) + * Canon Centre Recherche France. + * + * Added MPC8260 Andy Dachs <a.dachs@sstl.co.uk> + * Surrey Satellite Technology Limited + * + * + * The license and distribution terms for this file may be + * found in the file LICENSE in this distribution or at + * http://www.rtems.org/license/LICENSE. + */ + +#ifndef _LIBCPU_CPUIDENT_H +#define _LIBCPU_CPUIDENT_H + +#include <stdbool.h> + +#ifdef __cplusplus +extern "C" { +#endif + +#ifndef ASM +typedef enum +{ + PPC_601 = 0x1, + PPC_5XX = 0x2, + PPC_603 = 0x3, + PPC_604 = 0x4, + PPC_603e = 0x6, + PPC_603ev = 0x7, + PPC_750 = 0x8, + PPC_604e = 0x9, + PPC_604r = 0xA, + PPC_7400 = 0xC, + PPC_405 = 0x2001, /* Xilinx Virtex-II Pro or -4 */ + PPC_405EX = 0x1291, /* + 405EXr */ + PPC_405GP = 0x4011, /* + 405CR */ + PPC_405GPr = 0x5091, + PPC_405EZ = 0x4151, + PPC_405EP = 0x5121, + PPC_440 = 0x7ff2, /* Xilinx Virtex-5*/ + PPC_7455 = 0x8001, /* Kate Feng */ + PPC_7457 = 0x8002, + PPC_620 = 0x16, + PPC_860 = 0x50, + PPC_821 = PPC_860, + PPC_823 = PPC_860, + PPC_8260 = 0x81, + PPC_8240 = PPC_8260, + PPC_8245 = 0x8081, + PPC_8540 = 0x8020, + PPC_e500v2 = 0x8021, + PPC_e6500 = 0x8040, + PPC_603le = 0x8082, /* 603le core, in MGT5100 and MPC5200 */ + PPC_e300c1 = 0x8083, /* e300c1 core, in MPC83xx*/ + PPC_e300c2 = 0x8084, /* e300c2 core */ + PPC_e300c3 = 0x8085, /* e300c3 core */ + PPC_e200z0 = 0x8170, + PPC_e200z1 = 0x8140, + PPC_e200z4 = 0x8150, + PPC_e200z6 = 0x8110, + PPC_e200z7 = 0x8160, + PPC_PSIM = 0xfffe, /* GDB PowerPC simulator -- fake version */ + PPC_UNKNOWN = 0xffff +} ppc_cpu_id_t; + +/* Bitfield of for identifying features or groups of cpu flavors. + * DO NOT USE DIRECTLY (as implementation may change) + * only use the 'ppc_is_xxx() / ppc_has_xxx()' macros/inlines + * below. + */ + +typedef struct { + unsigned has_altivec : 1; + unsigned has_fpu : 1; + unsigned has_hw_ptbl_lkup : 1; +#define PPC_BOOKE_405 1 /* almost like booke but with some significant differences */ +#define PPC_BOOKE_STD 2 +#define PPC_BOOKE_E500 3 /* bookE with extensions */ + unsigned is_bookE : 2; + unsigned has_16byte_clne : 1; + unsigned is_60x : 1; + unsigned has_8_bats : 1; + unsigned has_epic : 1; + unsigned has_shadowed_gprs : 1; +} ppc_feature_t; + +extern ppc_feature_t current_ppc_features; +extern ppc_cpu_id_t current_ppc_cpu; + +typedef unsigned short ppc_cpu_revision_t; + +extern ppc_cpu_id_t get_ppc_cpu_type (void); +extern const char *get_ppc_cpu_type_name(ppc_cpu_id_t cpu); +extern ppc_cpu_revision_t get_ppc_cpu_revision (void); +extern ppc_cpu_revision_t current_ppc_revision; + +/* PUBLIC ACCESS ROUTINES */ +#define _PPC_FEAT_DECL(x) \ +static inline unsigned ppc_cpu_##x(void) { \ + if ( PPC_UNKNOWN == current_ppc_cpu ) \ + get_ppc_cpu_type(); \ + return current_ppc_features.x; \ +} + +_PPC_FEAT_DECL(has_altivec) +/* has_fpu not implemented yet */ +_PPC_FEAT_DECL(has_hw_ptbl_lkup) +_PPC_FEAT_DECL(is_bookE) +_PPC_FEAT_DECL(is_60x) +_PPC_FEAT_DECL(has_8_bats) +_PPC_FEAT_DECL(has_epic) +_PPC_FEAT_DECL(has_shadowed_gprs) + +#undef _PPC_FEAT_DECL + +static inline ppc_cpu_id_t ppc_cpu_current(void) +{ + return current_ppc_cpu; +} + +static inline bool ppc_cpu_is_e200(void) +{ + return (ppc_cpu_current() & 0xff80) == 0x8100; +} + +static inline bool ppc_cpu_is_specific_e200(ppc_cpu_id_t id) +{ + return (ppc_cpu_current() & 0xfff0) == id; +} + +static inline bool ppc_cpu_is_e300(void) +{ + return ppc_cpu_current() == PPC_e300c1 + || ppc_cpu_current() == PPC_e300c2 + || ppc_cpu_current() == PPC_e300c3; +} + +static inline bool ppc_cpu_is_e500(void) +{ + return ppc_cpu_current() == PPC_8540 + || ppc_cpu_current() == PPC_e500v2; +} + +static inline bool ppc_cpu_is(ppc_cpu_id_t cpu) +{ + return ppc_cpu_current() == cpu; +} + +#endif /* ASM */ + +#ifdef __cplusplus +} +#endif + +#endif |