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// SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
/* Copyright 2013-2019 IBM Corp. */
#include <skiboot.h>
#include <chip.h>
#include <console.h>
#include <device.h>
#include <timebase.h>
#include <cpu.h>
static struct proc_chip *chips[MAX_CHIPS];
enum proc_chip_quirks proc_chip_quirks;
uint32_t pir_to_chip_id(uint32_t pir)
{
if (proc_gen == proc_gen_p10)
return P10_PIR2GCID(pir);
else if (proc_gen == proc_gen_p9)
return P9_PIR2GCID(pir);
else if (proc_gen == proc_gen_p8)
return P8_PIR2GCID(pir);
else
assert(false);
}
uint32_t pir_to_core_id(uint32_t pir)
{
if (proc_gen == proc_gen_p10) {
if (this_cpu()->is_fused_core)
return P10_PIRFUSED2NORMALCOREID(pir);
else
return P10_PIR2COREID(pir);
} else if (proc_gen == proc_gen_p9) {
if (this_cpu()->is_fused_core)
return P9_PIRFUSED2NORMALCOREID(pir);
else
return P9_PIR2COREID(pir);
} else if (proc_gen == proc_gen_p8) {
return P8_PIR2COREID(pir);
} else {
assert(false);
}
}
uint32_t pir_to_fused_core_id(uint32_t pir)
{
if (proc_gen == proc_gen_p10) {
if (this_cpu()->is_fused_core)
return P10_PIR2FUSEDCOREID(pir);
else
return P10_PIR2COREID(pir);
} else if (proc_gen == proc_gen_p9) {
if (this_cpu()->is_fused_core)
return P9_PIR2FUSEDCOREID(pir);
else
return P9_PIR2COREID(pir);
} else if (proc_gen == proc_gen_p8) {
return P8_PIR2COREID(pir);
} else {
assert(false);
}
}
uint32_t pir_to_thread_id(uint32_t pir)
{
if (proc_gen == proc_gen_p10) {
if (this_cpu()->is_fused_core)
return P10_PIRFUSED2NORMALTHREADID(pir);
else
return P10_PIR2THREADID(pir);
} else if (proc_gen == proc_gen_p9) {
if (this_cpu()->is_fused_core)
return P9_PIRFUSED2NORMALTHREADID(pir);
else
return P9_PIR2THREADID(pir);
} else if (proc_gen == proc_gen_p8) {
return P8_PIR2THREADID(pir);
} else {
assert(false);
}
}
struct proc_chip *next_chip(struct proc_chip *chip)
{
unsigned int i;
for (i = chip ? (chip->id + 1) : 0; i < MAX_CHIPS; i++)
if (chips[i])
return chips[i];
return NULL;
}
struct proc_chip *get_chip(uint32_t chip_id)
{
if (chip_id >= MAX_CHIPS)
return NULL;
return chips[chip_id];
}
static void init_chip(struct dt_node *dn)
{
struct proc_chip *chip;
uint32_t id;
const char *lc = NULL;
id = dt_get_chip_id(dn);
assert(id < MAX_CHIPS);
assert(chips[id] == NULL);
chip = zalloc(sizeof(struct proc_chip));
assert(chip);
chip->id = id;
chip->devnode = dn;
chip->dbob_id = dt_prop_get_u32_def(dn, "ibm,dbob-id", 0xffffffff);
chip->pcid = dt_prop_get_u32_def(dn, "ibm,proc-chip-id", 0xffffffff);
if (dt_prop_get_u32_def(dn, "ibm,occ-functional-state", 0))
chip->occ_functional = true;
else
chip->occ_functional = false;
list_head_init(&chip->i2cms);
/* Update the location code for this chip. */
if (dt_has_node_property(dn, "ibm,loc-code", NULL))
lc = dt_prop_get(dn, "ibm,loc-code");
else if (dt_has_node_property(dn, "ibm,slot-location-code", NULL))
lc = dt_prop_get(dn, "ibm,slot-location-code");
if (lc)
chip->loc_code = strdup(lc);
chip->primary_topology = dt_prop_get_u32_def(dn,
"ibm,primary-topology-index", 0xffffffff);
prlog(PR_INFO, "CHIP: Initialised chip %d from %s\n", id, dn->name);
chips[id] = chip;
}
void init_chips(void)
{
struct dt_node *xn;
/* Detect mambo chip */
if (dt_find_by_path(dt_root, "/mambo")) {
proc_chip_quirks |= QUIRK_NO_CHIPTOD | QUIRK_MAMBO_CALLOUTS
| QUIRK_NO_F000F | QUIRK_NO_PBA | QUIRK_NO_OCC_IRQ
| QUIRK_NO_RNG;
enable_mambo_console();
prlog(PR_NOTICE, "CHIP: Detected Mambo simulator\n");
dt_for_each_compatible(dt_root, xn, "ibm,mambo-chip")
init_chip(xn);
}
/* Detect simics */
if (dt_find_by_path(dt_root, "/simics")) {
proc_chip_quirks |= QUIRK_SIMICS
| QUIRK_NO_PBA | QUIRK_NO_OCC_IRQ | QUIRK_SLOW_SIM;
tb_hz = 512000;
prlog(PR_NOTICE, "CHIP: Detected Simics simulator\n");
}
/* Detect Awan emulator */
xn = dt_find_by_path(dt_root, "/awan");
if (xn) {
const char *model_type;
proc_chip_quirks |= QUIRK_AWAN | QUIRK_SLOW_SIM | QUIRK_NO_PBA
| QUIRK_NO_OCC_IRQ;
tb_hz = 512000;
model_type = dt_prop_get_def(xn, "device_type", (void *)"core");
if (strcmp(model_type, "core") == 0) {
proc_chip_quirks |= QUIRK_NO_RNG | QUIRK_NO_CHIPTOD
| QUIRK_NO_F000F;
}
prlog(PR_NOTICE, "CHIP: Detected Awan emulator %s model\n",
model_type);
}
/* Detect Qemu */
if (dt_node_is_compatible(dt_root, "qemu,powernv") ||
dt_node_is_compatible(dt_root, "qemu,powernv8") ||
dt_node_is_compatible(dt_root, "qemu,powernv9") ||
dt_node_is_compatible(dt_root, "qemu,powernv10") ||
dt_find_by_path(dt_root, "/qemu")) {
proc_chip_quirks |= QUIRK_QEMU | QUIRK_NO_DIRECT_CTL | QUIRK_NO_RNG;
prlog(PR_NOTICE, "CHIP: Detected QEMU simulator\n");
}
if (dt_find_by_path(dt_root, "/bml")) {
proc_chip_quirks |= QUIRK_BML;
prlog(PR_NOTICE, "CHIP: Detected BML\n");
}
/* We walk the chips based on xscom nodes in the tree */
dt_for_each_compatible(dt_root, xn, "ibm,xscom") {
init_chip(xn);
}
}
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