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/*
* 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 found in the file LICENSE in this distribution or at
* http://www.rtems.com/license/LICENSE.
*
* $Id$
*/
#ifndef _LIBCPU_CPUIDENT_H
#define _LIBCPU_CPUIDENT_H
#include <stdbool.h>
#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,
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_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_e200z6 = 0x8115,
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;
unsigned has_ivpr_and_ivor : 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 ();
extern char *get_ppc_cpu_type_name(ppc_cpu_id_t cpu);
extern ppc_cpu_revision_t get_ppc_cpu_revision ();
extern ppc_cpu_revision_t current_ppc_revision;
/* PUBLIC ACCESS ROUTINES */
#define _PPC_FEAT_DECL(x) \
static inline unsigned ppc_cpu_##x() { \
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)
_PPC_FEAT_DECL(has_ivpr_and_ivor)
static inline bool ppc_cpu_is_e300()
{
if (current_ppc_cpu == PPC_UNKNOWN) {
get_ppc_cpu_type();
}
return current_ppc_cpu == PPC_e300c1
|| current_ppc_cpu == PPC_e300c2
|| current_ppc_cpu == PPC_e300c3;
}
#undef _PPC_FEAT_DECL
#endif /* ASM */
#endif
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