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Add POWER7 support for ppc

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This adds emulation support for the recent POWER7 cpu to qemu.  It's far
from perfect - it's missing a number of POWER7 features so far, including
any support for VSX or decimal floating point instructions.  However, it's
close enough to boot a kernel with the POWER7 PVR.

Signed-off-by: David Gibson <dwg@au1.ibm.com>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
David Gibson 2011-04-01 15:15:19 +11:00 • committed by Alexander Graf
parent cdaee00633
commit 9d52e9079d
5 changed files with 165 additions and 0 deletions
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107
target-ppc/translate_init.c
View file

@ -61,6 +61,7 @@ void glue(glue(ppc, name),_irq_init) (CPUPPCState *env);
PPC_IRQ_INIT_FN(40x);
PPC_IRQ_INIT_FN(6xx);
PPC_IRQ_INIT_FN(970);
PPC_IRQ_INIT_FN(POWER7);
PPC_IRQ_INIT_FN(e500);
/* Generic callbacks:
@ -3131,6 +3132,35 @@ static void init_excp_970 (CPUPPCState *env)
env->hreset_vector = 0x0000000000000100ULL;
#endif
}
static void init_excp_POWER7 (CPUPPCState *env)
{
#if !defined(CONFIG_USER_ONLY)
env->excp_vectors[POWERPC_EXCP_RESET] = 0x00000100;
env->excp_vectors[POWERPC_EXCP_MCHECK] = 0x00000200;
env->excp_vectors[POWERPC_EXCP_DSI] = 0x00000300;
env->excp_vectors[POWERPC_EXCP_DSEG] = 0x00000380;
env->excp_vectors[POWERPC_EXCP_ISI] = 0x00000400;
env->excp_vectors[POWERPC_EXCP_ISEG] = 0x00000480;
env->excp_vectors[POWERPC_EXCP_EXTERNAL] = 0x00000500;
env->excp_vectors[POWERPC_EXCP_ALIGN] = 0x00000600;
env->excp_vectors[POWERPC_EXCP_PROGRAM] = 0x00000700;
env->excp_vectors[POWERPC_EXCP_FPU] = 0x00000800;
env->excp_vectors[POWERPC_EXCP_DECR] = 0x00000900;
env->excp_vectors[POWERPC_EXCP_HDECR] = 0x00000980;
env->excp_vectors[POWERPC_EXCP_SYSCALL] = 0x00000C00;
env->excp_vectors[POWERPC_EXCP_TRACE] = 0x00000D00;
env->excp_vectors[POWERPC_EXCP_PERFM] = 0x00000F00;
env->excp_vectors[POWERPC_EXCP_VPU] = 0x00000F20;
env->excp_vectors[POWERPC_EXCP_IABR] = 0x00001300;
env->excp_vectors[POWERPC_EXCP_MAINT] = 0x00001600;
env->excp_vectors[POWERPC_EXCP_VPUA] = 0x00001700;
env->excp_vectors[POWERPC_EXCP_THERM] = 0x00001800;
env->hreset_excp_prefix = 0;
/* Hardware reset vector */
env->hreset_vector = 0x0000000000000100ULL;
#endif
}
#endif
/*****************************************************************************/
@ -6312,6 +6342,78 @@ static void init_proc_970MP (CPUPPCState *env)
vscr_init(env, 0x00010000);
}
#if defined(TARGET_PPC64)
/* POWER7 */
#define POWERPC_INSNS_POWER7 (PPC_INSNS_BASE | PPC_STRING | PPC_MFTB | \
PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES | \
PPC_FLOAT_FSQRT | PPC_FLOAT_FRSQRTE | \
PPC_FLOAT_STFIWX | \
PPC_CACHE | PPC_CACHE_ICBI | PPC_CACHE_DCBZT | \
PPC_MEM_SYNC | PPC_MEM_EIEIO | \
PPC_MEM_TLBIE | PPC_MEM_TLBSYNC | \
PPC_64B | PPC_ALTIVEC | \
PPC_SEGMENT_64B | PPC_SLBI | \
PPC_POPCNTB | PPC_POPCNTWD)
#define POWERPC_MSRM_POWER7 (0x800000000204FF36ULL)
#define POWERPC_MMU_POWER7 (POWERPC_MMU_2_06)
#define POWERPC_EXCP_POWER7 (POWERPC_EXCP_POWER7)
#define POWERPC_INPUT_POWER7 (PPC_FLAGS_INPUT_POWER7)
#define POWERPC_BFDM_POWER7 (bfd_mach_ppc64)
#define POWERPC_FLAG_POWER7 (POWERPC_FLAG_VRE | POWERPC_FLAG_SE | \
POWERPC_FLAG_BE | POWERPC_FLAG_PMM | \
POWERPC_FLAG_BUS_CLK)
#define check_pow_POWER7 check_pow_nocheck
static void init_proc_POWER7 (CPUPPCState *env)
{
gen_spr_ne_601(env);
gen_spr_7xx(env);
/* Time base */
gen_tbl(env);
#if !defined(CONFIG_USER_ONLY)
/* PURR & SPURR: Hack - treat these as aliases for the TB for now */
spr_register(env, SPR_PURR, "PURR",
&spr_read_purr, SPR_NOACCESS,
&spr_read_purr, SPR_NOACCESS,
0x00000000);
spr_register(env, SPR_SPURR, "SPURR",
&spr_read_purr, SPR_NOACCESS,
&spr_read_purr, SPR_NOACCESS,
0x00000000);
#endif /* !CONFIG_USER_ONLY */
/* Memory management */
/* XXX : not implemented */
spr_register(env, SPR_MMUCFG, "MMUCFG",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, SPR_NOACCESS,
0x00000000); /* TOFIX */
/* XXX : not implemented */
spr_register(env, SPR_CTRL, "SPR_CTRLT",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
0x80800000);
spr_register(env, SPR_UCTRL, "SPR_CTRLF",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
0x80800000);
spr_register(env, SPR_VRSAVE, "SPR_VRSAVE",
&spr_read_generic, &spr_write_generic,
&spr_read_generic, &spr_write_generic,
0x00000000);
#if !defined(CONFIG_USER_ONLY)
env->slb_nr = 32;
#endif
init_excp_POWER7(env);
env->dcache_line_size = 128;
env->icache_line_size = 128;
/* Allocate hardware IRQ controller */
ppcPOWER7_irq_init(env);
/* Can't find information on what this should be on reset. This
* value is the one used by 74xx processors. */
vscr_init(env, 0x00010000);
}
#endif /* TARGET_PPC64 */
/* PowerPC 620 */
#define POWERPC_INSNS_620 (PPC_INSNS_BASE | PPC_STRING | PPC_MFTB | \
PPC_FLOAT | PPC_FLOAT_FSEL | PPC_FLOAT_FRES | \
@ -7034,6 +7136,8 @@ enum {
CPU_POWERPC_POWER6 = 0x003E0000,
CPU_POWERPC_POWER6_5 = 0x0F000001, /* POWER6 in POWER5 mode */
CPU_POWERPC_POWER6A = 0x0F000002,
#define CPU_POWERPC_POWER7 CPU_POWERPC_POWER7_v20
CPU_POWERPC_POWER7_v20 = 0x003F0200,
CPU_POWERPC_970 = 0x00390202,
#define CPU_POWERPC_970FX CPU_POWERPC_970FX_v31
CPU_POWERPC_970FX_v10 = 0x00391100,
@ -8836,6 +8940,9 @@ static const ppc_def_t ppc_defs[] = {
/* POWER6A */
POWERPC_DEF("POWER6A", CPU_POWERPC_POWER6A, POWER6),
#endif
/* POWER7 */
POWERPC_DEF("POWER7", CPU_POWERPC_POWER7, POWER7),
POWERPC_DEF("POWER7_v2.0", CPU_POWERPC_POWER7_v20, POWER7),
/* PowerPC 970 */
POWERPC_DEF("970", CPU_POWERPC_970, 970),
/* PowerPC 970FX (G5) */