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target-ppc: add support for reading/writing spefscr 

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6789 c046a42c-6fe2-441c-8c8c-71466251a162
master
aurel32 2009-03-09 06:27:14 +00:00
parent 2fbc409571
commit d34defbc21
1 changed files with 23 additions and 8 deletions
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31
target-ppc/translate_init.c
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@ -448,6 +448,23 @@ static void spr_write_pir (void *opaque, int sprn, int gprn)
}
#endif
/* SPE specific registers */
static void spr_read_spefscr (void *opaque, int gprn, int sprn)
{
TCGv_i32 t0 = tcg_temp_new_i32();
tcg_gen_ld_tl(t0, cpu_env, offsetof(CPUState, spe_fscr));
tcg_gen_extu_i32_tl(cpu_gpr[gprn], t0);
tcg_temp_free_i32(t0);
}
static void spr_write_spefscr (void *opaque, int sprn, int gprn)
{
TCGv_i32 t0 = tcg_temp_new_i32();
tcg_gen_trunc_tl_i32(t0, cpu_gpr[gprn]);
tcg_gen_st_tl(t0, cpu_env, offsetof(CPUState, spe_fscr));
tcg_temp_free_i32(t0);
}
#if !defined(CONFIG_USER_ONLY)
/* Callback used to write the exception vector base */
static void spr_write_excp_prefix (void *opaque, int sprn, int gprn)
@ -2565,7 +2582,6 @@ static void gen_spr_8xx (CPUPPCState *env)
* HSRR1 => SPR 315 (Power 2.04 hypv)
* LPCR => SPR 316 (970)
* LPIDR => SPR 317 (970)
* SPEFSCR => SPR 512 (Power 2.04 emb)
* EPR => SPR 702 (Power 2.04 emb)
* perf => 768-783 (Power 2.04)
* perf => 784-799 (Power 2.04)
@ -4021,8 +4037,8 @@ static void init_proc_e200 (CPUPPCState *env)
gen_spr_BookE(env, 0x000000070000FFFFULL);
/* XXX : not implemented */
spr_register(env, SPR_BOOKE_SPEFSCR, "SPEFSCR",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
&spr_read_spefscr, &spr_write_spefscr,
&spr_read_spefscr, &spr_write_spefscr,
0x00000000);
/* Memory management */
gen_spr_BookE_FSL(env, 0x0000005D);
@ -4210,8 +4226,8 @@ static void init_proc_e500 (CPUPPCState *env)
0x00000000);
/* XXX : not implemented */
spr_register(env, SPR_BOOKE_SPEFSCR, "SPEFSCR",
SPR_NOACCESS, SPR_NOACCESS,
&spr_read_generic, &spr_write_generic,
&spr_read_spefscr, &spr_write_spefscr,
&spr_read_spefscr, &spr_write_spefscr,
0x00000000);
/* Memory management */
#if !defined(CONFIG_USER_ONLY)
@ -9428,8 +9444,7 @@ static int gdb_get_spe_reg(CPUState *env, uint8_t *mem_buf, int n)
return 8;
}
if (n == 33) {
/* SPEFSCR not implemented */
memset(mem_buf, 0, 4);
stl_p(mem_buf, env->spe_fscr);
return 4;
}
return 0;
@ -9452,7 +9467,7 @@ static int gdb_set_spe_reg(CPUState *env, uint8_t *mem_buf, int n)
return 8;
}
if (n == 33) {
/* SPEFSCR not implemented */
env->spe_fscr = ldl_p(mem_buf);
return 4;
}
return 0;