summaryrefslogtreecommitdiffstats
path: root/target-ppc
diff options
context:
space:
mode:
Diffstat (limited to 'target-ppc')
-rw-r--r--target-ppc/cpu.h1
-rw-r--r--target-ppc/translate_init.c27
2 files changed, 28 insertions, 0 deletions
diff --git a/target-ppc/cpu.h b/target-ppc/cpu.h
index 0d2253b..406a406 100644
--- a/target-ppc/cpu.h
+++ b/target-ppc/cpu.h
@@ -1122,6 +1122,7 @@ void ppc_store_sdr1 (CPUPPCState *env, target_ulong value);
void ppc_store_msr (CPUPPCState *env, target_ulong value);
void ppc_cpu_list (FILE *f, fprintf_function cpu_fprintf);
+int ppc_get_compat_smt_threads(PowerPCCPU *cpu);
int ppc_set_compat(PowerPCCPU *cpu, uint32_t cpu_version);
/* Time-base and decrementer management */
diff --git a/target-ppc/translate_init.c b/target-ppc/translate_init.c
index faac74a..56d3b97 100644
--- a/target-ppc/translate_init.c
+++ b/target-ppc/translate_init.c
@@ -8921,6 +8921,33 @@ static void ppc_cpu_unrealizefn(DeviceState *dev, Error **errp)
}
}
+int ppc_get_compat_smt_threads(PowerPCCPU *cpu)
+{
+ int ret = smp_threads;
+ PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cpu);
+
+ switch (cpu->cpu_version) {
+ case CPU_POWERPC_LOGICAL_2_05:
+ ret = 2;
+ break;
+ case CPU_POWERPC_LOGICAL_2_06:
+ ret = 4;
+ break;
+ case CPU_POWERPC_LOGICAL_2_07:
+ ret = 8;
+ break;
+ default:
+ if (pcc->pcr_mask & PCR_COMPAT_2_06) {
+ ret = 4;
+ } else if (pcc->pcr_mask & PCR_COMPAT_2_05) {
+ ret = 2;
+ }
+ break;
+ }
+
+ return MIN(ret, smp_threads);
+}
+
int ppc_set_compat(PowerPCCPU *cpu, uint32_t cpu_version)
{
int ret = 0;
OpenPOWER on IntegriCloud