static void powernv_populate_chip(PnvChip *chip, void *fdt)
{
PnvChipClass *pcc = PNV_CHIP_GET_CLASS(chip);
char *typename = pnv_core_typename(pcc->cpu_model);
size_t typesize = object_type_get_instance_size(typename);
int i;
pnv_xscom_populate(chip, fdt, 0);
/* The default LPC bus of a multichip system is on chip 0. It's
* recognized by the firmware (skiboot) using a "primary"
* property.
*/
if (chip->chip_id == 0x0) {
int lpc_offset = pnv_chip_lpc_offset(chip, fdt);
_FDT((fdt_setprop(fdt, lpc_offset, "primary", NULL, 0)));
}
for (i = 0; i < chip->nr_cores; i++) {
PnvCore *pnv_core = PNV_CORE(chip->cores + i * typesize);
powernv_create_core_node(chip, pnv_core, fdt);
/* Interrupt Control Presenters (ICP). One per core. */
powernv_populate_icp(chip, fdt, pnv_core->pir,
CPU_CORE(pnv_core)->nr_threads);
}
if (chip->ram_size) {
powernv_populate_memory_node(fdt, chip->chip_id, chip->ram_start,
chip->ram_size);
}
g_free(typename);
}
static void spapr_cpu_core_unrealize(DeviceState *dev, Error **errp)
{
SpaprCpuCore *sc = SPAPR_CPU_CORE(OBJECT(dev));
CPUCore *cc = CPU_CORE(dev);
int i;
for (i = 0; i < cc->nr_threads; i++) {
spapr_unrealize_vcpu(sc->threads[i], sc);
}
g_free(sc->threads);
}
static void spapr_cpu_core_realize(DeviceState *dev, Error **errp)
{
/* We don't use SPAPR_MACHINE() in order to exit gracefully if the user
* tries to add a sPAPR CPU core to a non-pseries machine.
*/
SpaprMachineState *spapr =
(SpaprMachineState *) object_dynamic_cast(qdev_get_machine(),
TYPE_SPAPR_MACHINE);
SpaprCpuCore *sc = SPAPR_CPU_CORE(OBJECT(dev));
CPUCore *cc = CPU_CORE(OBJECT(dev));
Error *local_err = NULL;
int i, j;
if (!spapr) {
error_setg(errp, TYPE_SPAPR_CPU_CORE " needs a pseries machine");
return;
}
sc->threads = g_new(PowerPCCPU *, cc->nr_threads);
for (i = 0; i < cc->nr_threads; i++) {
sc->threads[i] = spapr_create_vcpu(sc, i, &local_err);
if (local_err) {
goto err;
}
}
for (j = 0; j < cc->nr_threads; j++) {
spapr_realize_vcpu(sc->threads[j], spapr, sc, &local_err);
if (local_err) {
goto err_unrealize;
}
}
return;
err_unrealize:
while (--j >= 0) {
spapr_unrealize_vcpu(sc->threads[j], sc);
}
err:
while (--i >= 0) {
spapr_delete_vcpu(sc->threads[i], sc);
}
g_free(sc->threads);
error_propagate(errp, local_err);
}
static void spapr_cpu_core_unrealizefn(DeviceState *dev, Error **errp)
{
sPAPRCPUCore *sc = SPAPR_CPU_CORE(OBJECT(dev));
CPUCore *cc = CPU_CORE(dev);
int i;
for (i = 0; i < cc->nr_threads; i++) {
Object *obj = OBJECT(sc->threads[i]);
DeviceState *dev = DEVICE(obj);
CPUState *cs = CPU(dev);
PowerPCCPU *cpu = POWERPC_CPU(cs);
spapr_cpu_destroy(cpu);
object_unparent(cpu->intc);
cpu_remove_sync(cs);
object_unparent(obj);
}
g_free(sc->threads);
}
static void spapr_cpu_core_unrealizefn(DeviceState *dev, Error **errp)
{
sPAPRCPUCore *sc = SPAPR_CPU_CORE(OBJECT(dev));
sPAPRCPUCoreClass *scc = SPAPR_CPU_CORE_GET_CLASS(OBJECT(dev));
size_t size = object_type_get_instance_size(scc->cpu_type);
CPUCore *cc = CPU_CORE(dev);
int i;
for (i = 0; i < cc->nr_threads; i++) {
void *obj = sc->threads + i * size;
DeviceState *dev = DEVICE(obj);
CPUState *cs = CPU(dev);
PowerPCCPU *cpu = POWERPC_CPU(cs);
spapr_cpu_destroy(cpu);
object_unparent(cpu->intc);
cpu_remove_sync(cs);
object_unparent(obj);
}
g_free(sc->threads);
}
static PowerPCCPU *spapr_create_vcpu(SpaprCpuCore *sc, int i, Error **errp)
{
SpaprCpuCoreClass *scc = SPAPR_CPU_CORE_GET_CLASS(sc);
CPUCore *cc = CPU_CORE(sc);
Object *obj;
char *id;
CPUState *cs;
PowerPCCPU *cpu;
Error *local_err = NULL;
obj = object_new(scc->cpu_type);
cs = CPU(obj);
cpu = POWERPC_CPU(obj);
cs->cpu_index = cc->core_id + i;
spapr_set_vcpu_id(cpu, cs->cpu_index, &local_err);
if (local_err) {
goto err;
}
cpu->node_id = sc->node_id;
id = g_strdup_printf("thread[%d]", i);
object_property_add_child(OBJECT(sc), id, obj, &local_err);
g_free(id);
if (local_err) {
goto err;
}
cpu->machine_data = g_new0(SpaprCpuState, 1);
object_unref(obj);
return cpu;
err:
object_unref(obj);
error_propagate(errp, local_err);
return NULL;
}
/*
* The PowerNV cores (and threads) need to use real HW ids and not an
* incremental index like it has been done on other platforms. This HW
* id is stored in the CPU PIR, it is used to create cpu nodes in the
* device tree, used in XSCOM to address cores and in interrupt
* servers.
*/
static void powernv_create_core_node(PnvChip *chip, PnvCore *pc, void *fdt)
{
CPUState *cs = CPU(DEVICE(pc->threads));
DeviceClass *dc = DEVICE_GET_CLASS(cs);
PowerPCCPU *cpu = POWERPC_CPU(cs);
int smt_threads = CPU_CORE(pc)->nr_threads;
CPUPPCState *env = &cpu->env;
PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cs);
uint32_t servers_prop[smt_threads];
int i;
uint32_t segs[] = {cpu_to_be32(28), cpu_to_be32(40),
0xffffffff, 0xffffffff};
uint32_t tbfreq = PNV_TIMEBASE_FREQ;
uint32_t cpufreq = 1000000000;
uint32_t page_sizes_prop[64];
size_t page_sizes_prop_size;
const uint8_t pa_features[] = { 24, 0,
0xf6, 0x3f, 0xc7, 0xc0, 0x80, 0xf0,
0x80, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x80, 0x00,
0x80, 0x00, 0x80, 0x00, 0x80, 0x00 };
int offset;
char *nodename;
int cpus_offset = get_cpus_node(fdt);
nodename = g_strdup_printf("%s@%x", dc->fw_name, pc->pir);
offset = fdt_add_subnode(fdt, cpus_offset, nodename);
_FDT(offset);
g_free(nodename);
_FDT((fdt_setprop_cell(fdt, offset, "ibm,chip-id", chip->chip_id)));
_FDT((fdt_setprop_cell(fdt, offset, "reg", pc->pir)));
_FDT((fdt_setprop_cell(fdt, offset, "ibm,pir", pc->pir)));
_FDT((fdt_setprop_string(fdt, offset, "device_type", "cpu")));
_FDT((fdt_setprop_cell(fdt, offset, "cpu-version", env->spr[SPR_PVR])));
_FDT((fdt_setprop_cell(fdt, offset, "d-cache-block-size",
env->dcache_line_size)));
_FDT((fdt_setprop_cell(fdt, offset, "d-cache-line-size",
env->dcache_line_size)));
_FDT((fdt_setprop_cell(fdt, offset, "i-cache-block-size",
env->icache_line_size)));
_FDT((fdt_setprop_cell(fdt, offset, "i-cache-line-size",
env->icache_line_size)));
if (pcc->l1_dcache_size) {
_FDT((fdt_setprop_cell(fdt, offset, "d-cache-size",
pcc->l1_dcache_size)));
} else {
warn_report("Unknown L1 dcache size for cpu");
}
if (pcc->l1_icache_size) {
_FDT((fdt_setprop_cell(fdt, offset, "i-cache-size",
pcc->l1_icache_size)));
} else {
warn_report("Unknown L1 icache size for cpu");
}
_FDT((fdt_setprop_cell(fdt, offset, "timebase-frequency", tbfreq)));
_FDT((fdt_setprop_cell(fdt, offset, "clock-frequency", cpufreq)));
_FDT((fdt_setprop_cell(fdt, offset, "ibm,slb-size", env->slb_nr)));
_FDT((fdt_setprop_string(fdt, offset, "status", "okay")));
_FDT((fdt_setprop(fdt, offset, "64-bit", NULL, 0)));
if (env->spr_cb[SPR_PURR].oea_read) {
_FDT((fdt_setprop(fdt, offset, "ibm,purr", NULL, 0)));
}
if (env->mmu_model & POWERPC_MMU_1TSEG) {
_FDT((fdt_setprop(fdt, offset, "ibm,processor-segment-sizes",
segs, sizeof(segs))));
}
/* Advertise VMX/VSX (vector extensions) if available
* 0 / no property == no vector extensions
* 1 == VMX / Altivec available
* 2 == VSX available */
if (env->insns_flags & PPC_ALTIVEC) {
uint32_t vmx = (env->insns_flags2 & PPC2_VSX) ? 2 : 1;
_FDT((fdt_setprop_cell(fdt, offset, "ibm,vmx", vmx)));
}
/* Advertise DFP (Decimal Floating Point) if available
* 0 / no property == no DFP
* 1 == DFP available */
if (env->insns_flags2 & PPC2_DFP) {
_FDT((fdt_setprop_cell(fdt, offset, "ibm,dfp", 1)));
}
page_sizes_prop_size = ppc_create_page_sizes_prop(env, page_sizes_prop,
sizeof(page_sizes_prop));
if (page_sizes_prop_size) {
_FDT((fdt_setprop(fdt, offset, "ibm,segment-page-sizes",
page_sizes_prop, page_sizes_prop_size)));
}
_FDT((fdt_setprop(fdt, offset, "ibm,pa-features",
pa_features, sizeof(pa_features))));
/* Build interrupt servers properties */
for (i = 0; i < smt_threads; i++) {
servers_prop[i] = cpu_to_be32(pc->pir + i);
}
_FDT((fdt_setprop(fdt, offset, "ibm,ppc-interrupt-server#s",
servers_prop, sizeof(servers_prop))));
}
static void spapr_cpu_core_realize(DeviceState *dev, Error **errp)
{
/* We don't use SPAPR_MACHINE() in order to exit gracefully if the user
* tries to add a sPAPR CPU core to a non-pseries machine.
*/
sPAPRMachineState *spapr =
(sPAPRMachineState *) object_dynamic_cast(qdev_get_machine(),
TYPE_SPAPR_MACHINE);
sPAPRCPUCore *sc = SPAPR_CPU_CORE(OBJECT(dev));
sPAPRCPUCoreClass *scc = SPAPR_CPU_CORE_GET_CLASS(OBJECT(dev));
CPUCore *cc = CPU_CORE(OBJECT(dev));
Error *local_err = NULL;
Object *obj;
int i, j;
if (!spapr) {
error_setg(errp, TYPE_SPAPR_CPU_CORE " needs a pseries machine");
return;
}
sc->threads = g_new(PowerPCCPU *, cc->nr_threads);
for (i = 0; i < cc->nr_threads; i++) {
char id[32];
CPUState *cs;
PowerPCCPU *cpu;
obj = object_new(scc->cpu_type);
cs = CPU(obj);
cpu = sc->threads[i] = POWERPC_CPU(obj);
cs->cpu_index = cc->core_id + i;
spapr_set_vcpu_id(cpu, cs->cpu_index, &local_err);
if (local_err) {
goto err;
}
/* Set NUMA node for the threads belonged to core */
cpu->node_id = sc->node_id;
snprintf(id, sizeof(id), "thread[%d]", i);
object_property_add_child(OBJECT(sc), id, obj, &local_err);
if (local_err) {
goto err;
}
object_unref(obj);
}
for (j = 0; j < cc->nr_threads; j++) {
obj = OBJECT(sc->threads[j]);
spapr_cpu_core_realize_child(obj, spapr, &local_err);
if (local_err) {
goto err;
}
}
return;
err:
while (--i >= 0) {
obj = OBJECT(sc->threads[i]);
object_unparent(obj);
}
g_free(sc->threads);
error_propagate(errp, local_err);
}
static void spapr_cpu_core_realize(DeviceState *dev, Error **errp)
{
/* We don't use SPAPR_MACHINE() in order to exit gracefully if the user
* tries to add a sPAPR CPU core to a non-pseries machine.
*/
sPAPRMachineState *spapr =
(sPAPRMachineState *) object_dynamic_cast(qdev_get_machine(),
TYPE_SPAPR_MACHINE);
sPAPRCPUCore *sc = SPAPR_CPU_CORE(OBJECT(dev));
sPAPRCPUCoreClass *scc = SPAPR_CPU_CORE_GET_CLASS(OBJECT(dev));
CPUCore *cc = CPU_CORE(OBJECT(dev));
size_t size;
Error *local_err = NULL;
void *obj;
int i, j;
if (!spapr) {
error_setg(errp, TYPE_SPAPR_CPU_CORE " needs a pseries machine");
return;
}
size = object_type_get_instance_size(scc->cpu_type);
sc->threads = g_malloc0(size * cc->nr_threads);
for (i = 0; i < cc->nr_threads; i++) {
char id[32];
CPUState *cs;
PowerPCCPU *cpu;
obj = sc->threads + i * size;
object_initialize(obj, size, scc->cpu_type);
cs = CPU(obj);
cpu = POWERPC_CPU(cs);
cs->cpu_index = cc->core_id + i;
cpu->vcpu_id = (cc->core_id * spapr->vsmt / smp_threads) + i;
if (kvm_enabled() && !kvm_vcpu_id_is_valid(cpu->vcpu_id)) {
error_setg(&local_err, "Can't create CPU with id %d in KVM",
cpu->vcpu_id);
error_append_hint(&local_err, "Adjust the number of cpus to %d "
"or try to raise the number of threads per core\n",
cpu->vcpu_id * smp_threads / spapr->vsmt);
goto err;
}
/* Set NUMA node for the threads belonged to core */
cpu->node_id = sc->node_id;
snprintf(id, sizeof(id), "thread[%d]", i);
object_property_add_child(OBJECT(sc), id, obj, &local_err);
if (local_err) {
goto err;
}
object_unref(obj);
}
for (j = 0; j < cc->nr_threads; j++) {
obj = sc->threads + j * size;
spapr_cpu_core_realize_child(obj, spapr, &local_err);
if (local_err) {
goto err;
}
}
return;
err:
while (--i >= 0) {
obj = sc->threads + i * size;
object_unparent(obj);
}
g_free(sc->threads);
error_propagate(errp, local_err);
}
