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PPC: Bring EPR support closer to reality

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We already used to support the external proxy facility of FSL MPICs,
but only implemented it halfway correctly.

This patch adds support for

  * dynamic enablement of the EPR facility
  * interrupt acknowledgement only when the interrupt is delivered

This way the implementation now is closer to real hardware.

Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
Alexander Graf 2013-01-04 11:21:04 +01:00
parent 1a61a9ae61
commit 68c2dd7006
8 changed files with 31 additions and 46 deletions
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7
target-ppc/translate_init.c
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@ -4493,11 +4493,6 @@ static void spr_read_mas73(void *opaque, int gprn, int sprn)
tcg_temp_free(mas7);
}
static void spr_load_epr(void *opaque, int gprn, int sprn)
{
gen_helper_load_epr(cpu_gpr[gprn], cpu_env);
}
#endif
enum fsl_e500_version {
@ -4656,7 +4651,7 @@ static void init_proc_e500 (CPUPPCState *env, int version)
0x00000000);
spr_register(env, SPR_BOOKE_EPR, "EPR",
SPR_NOACCESS, SPR_NOACCESS,
&spr_load_epr, SPR_NOACCESS,
&spr_read_generic, SPR_NOACCESS,
0x00000000);
/* XXX better abstract into Emb.xxx features */
if (version == fsl_e5500) {