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spira.c
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spira.c
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// SPDX-License-Identifier: Apache-2.0
/* Copyright 2013-2019 IBM Corp. */
#include <inttypes.h>
#include <device.h>
#include "spira.h"
#include <cpu.h>
#include <vpd.h>
#include <interrupts.h>
#include <ccan/str/str.h>
#include <chip.h>
#include <opal-dump.h>
#include <fsp-attn.h>
#include <fsp-leds.h>
#include "hdata.h"
#include "hostservices.h"
/* Processor Initialization structure, contains
* the initial NIA and MSR values for the entry
* point
*
* Note: It appears to be ignoring the entry point
* and always going to 0x180
*/
static int cpu_type;
extern struct proc_init_data proc_init_data;
__section(".procin.data") struct proc_init_data proc_init_data = {
.hdr = HDIF_SIMPLE_HDR("PROCIN", 1, struct proc_init_data),
.regs_ptr = HDIF_IDATA_PTR(offsetof(struct proc_init_data, regs), 0x10),
.regs = {
.nia = CPU_TO_BE64(0x180),
.msr = CPU_TO_BE64(0x9000000000000000ULL), /* SF | HV */
},
};
extern struct sp_addr_table cpu_ctl_spat_area;
__section(".cpuctrl.data") struct sp_addr_table cpu_ctl_spat_area;
__section(".cpuctrl.data") struct sp_attn_area cpu_ctl_sp_attn_area1;
__section(".cpuctrl.data") struct sp_attn_area cpu_ctl_sp_attn_area2;
extern struct hsr_data_area cpu_ctl_hsr_area;
__section(".cpuctrl.data") struct hsr_data_area cpu_ctl_hsr_area;
extern struct cpu_ctl_init_data cpu_ctl_init_data;
__section(".cpuctrl.data") struct cpu_ctl_init_data cpu_ctl_init_data = {
.hdr = HDIF_SIMPLE_HDR(CPU_CTL_HDIF_SIG, 2, struct cpu_ctl_init_data),
.cpu_ctl = HDIF_IDATA_PTR(offsetof(struct cpu_ctl_init_data, cpu_ctl_lt), sizeof(struct cpu_ctl_legacy_table)),
#if !defined(TEST)
.cpu_ctl_lt = {
.spat = {
.addr = CPU_TO_BE64((unsigned long)&(cpu_ctl_spat_area) + SKIBOOT_BASE),
.size = CPU_TO_BE64(sizeof(struct sp_addr_table)),
},
.sp_attn_area1 = {
.addr = CPU_TO_BE64((unsigned long)&(cpu_ctl_sp_attn_area1) + SKIBOOT_BASE),
.size = CPU_TO_BE64(sizeof(struct sp_attn_area)),
},
.sp_attn_area2 = {
.addr = CPU_TO_BE64((unsigned long)&(cpu_ctl_sp_attn_area2) + SKIBOOT_BASE),
.size = CPU_TO_BE64(sizeof(struct sp_attn_area)),
},
.hsr_area = {
.addr = CPU_TO_BE64((unsigned long)&(cpu_ctl_hsr_area) + SKIBOOT_BASE),
.size = CPU_TO_BE64(sizeof(struct hsr_data_area)),
},
},
#endif
};
/* Populate MDST table
*
* Note that we only pass sapphire console buffer here so that we can
* capture early failure logs. Later dump component (fsp_dump_mdst_init)
* creates new table with all the memory sections we are interested and
* sends updated table to FSP via MBOX.
*
* To help the FSP distinguishing between TCE tokens and actual physical
* addresses, we set the top bit to 1 on physical addresses
*/
extern struct mdst_table init_mdst_table[];
__section(".mdst.data") struct mdst_table init_mdst_table[2] = {
{
.addr = CPU_TO_BE64(INMEM_CON_START | HRMOR_BIT),
.data_region = DUMP_REGION_CONSOLE,
.dump_type = DUMP_TYPE_SYSDUMP,
.size = CPU_TO_BE32(INMEM_CON_LEN),
},
{
.addr = CPU_TO_BE64(HBRT_CON_START | HRMOR_BIT),
.data_region = DUMP_REGION_HBRT_LOG,
.dump_type = DUMP_TYPE_SYSDUMP,
.size = CPU_TO_BE32(HBRT_CON_LEN),
},
};
/* SP Interface Root Array, aka SPIRA */
__section(".spira.data") struct spira spira = {
.hdr = HDIF_SIMPLE_HDR("SPIRA ", SPIRA_VERSION, struct spira),
.ntuples_ptr = HDIF_IDATA_PTR(offsetof(struct spira, ntuples),
sizeof(struct spira_ntuples)),
.ntuples = {
.array_hdr = {
.offset = CPU_TO_BE32(HDIF_ARRAY_OFFSET),
.ecnt = CPU_TO_BE32(SPIRA_NTUPLES_COUNT),
.esize
= CPU_TO_BE32(sizeof(struct spira_ntuple)),
.eactsz = CPU_TO_BE32(0x18),
},
/* We only populate some n-tuples */
.proc_init = {
.addr = CPU_TO_BE64(PROCIN_OFF),
.alloc_cnt = CPU_TO_BE16(1),
.act_cnt = CPU_TO_BE16(1),
.alloc_len
= CPU_TO_BE32(sizeof(struct proc_init_data)),
},
.heap = {
.addr = CPU_TO_BE64(SPIRA_HEAP_BASE),
.alloc_cnt = CPU_TO_BE16(1),
.alloc_len = CPU_TO_BE32(SPIRA_HEAP_SIZE),
},
.mdump_src = {
.addr = CPU_TO_BE64(MDST_TABLE_OFF),
.alloc_cnt = CPU_TO_BE16(ARRAY_SIZE(init_mdst_table)),
.act_cnt = CPU_TO_BE16(ARRAY_SIZE(init_mdst_table)),
.alloc_len =
CPU_TO_BE32(sizeof(init_mdst_table)),
},
#if !defined(TEST)
.cpu_ctrl = {
.addr = CPU_TO_BE64((unsigned long)&cpu_ctl_init_data),
.alloc_cnt = CPU_TO_BE16(1),
.act_cnt = CPU_TO_BE16(1),
.alloc_len =
CPU_TO_BE32(sizeof(cpu_ctl_init_data)),
},
#endif
},
};
/* The Hypervisor SPIRA-H Structure */
__section(".spirah.data") struct spirah spirah = {
.hdr = HDIF_SIMPLE_HDR(SPIRAH_HDIF_SIG, SPIRAH_VERSION, struct spirah),
.ntuples_ptr = HDIF_IDATA_PTR(offsetof(struct spirah, ntuples),
sizeof(struct spirah_ntuples)),
.ntuples = {
.array_hdr = {
.offset = CPU_TO_BE32(HDIF_ARRAY_OFFSET),
.ecnt = CPU_TO_BE32(SPIRAH_NTUPLES_COUNT),
.esize
= CPU_TO_BE32(sizeof(struct spira_ntuple)),
.eactsz = CPU_TO_BE32(0x18),
},
/* Host Data Areas */
.hs_data_area = {
.addr = CPU_TO_BE64(SPIRA_HEAP_BASE),
.alloc_cnt = CPU_TO_BE16(1),
.alloc_len = CPU_TO_BE32(SPIRA_HEAP_SIZE),
},
/* We only populate some n-tuples */
.proc_init = {
.addr = CPU_TO_BE64(PROCIN_OFF),
.alloc_cnt = CPU_TO_BE16(1),
.act_cnt = CPU_TO_BE16(1),
.alloc_len
= CPU_TO_BE32(sizeof(struct proc_init_data)),
},
#if !defined(TEST)
.cpu_ctrl = {
.addr = CPU_TO_BE64((unsigned long)&cpu_ctl_init_data),
.alloc_cnt = CPU_TO_BE16(1),
.act_cnt = CPU_TO_BE16(1),
.alloc_len =
CPU_TO_BE32(sizeof(cpu_ctl_init_data)),
},
#endif
.mdump_src = {
.addr = CPU_TO_BE64(MDST_TABLE_OFF),
.alloc_cnt = CPU_TO_BE16(MDST_TABLE_SIZE / sizeof(struct mdst_table)),
.act_cnt = CPU_TO_BE16(ARRAY_SIZE(init_mdst_table)),
.alloc_len = CPU_TO_BE32(sizeof(struct mdst_table)),
.act_len = CPU_TO_BE32(sizeof(struct mdst_table)),
},
.mdump_dst = {
.addr = CPU_TO_BE64(MDDT_TABLE_OFF),
.alloc_cnt = CPU_TO_BE16(MDDT_TABLE_SIZE / sizeof(struct mddt_table)),
.act_cnt = CPU_TO_BE16(0),
.alloc_len = CPU_TO_BE32(sizeof(struct mddt_table)),
.act_len = CPU_TO_BE32(sizeof(struct mddt_table)),
},
.mdump_res = {
.addr = CPU_TO_BE64(MDRT_TABLE_BASE),
.alloc_cnt = CPU_TO_BE16(MDRT_TABLE_SIZE / sizeof(struct mdrt_table)),
/*
* XXX: Ideally hostboot should use allocated count and
* length. But looks like hostboot uses actual count
* and length to get MDRT table size. And post dump
* hostboot will update act_cnt. Hence update both
* alloc_cnt and act_cnt.
*/
.act_cnt = CPU_TO_BE16(MDRT_TABLE_SIZE / sizeof(struct mdrt_table)),
.alloc_len = CPU_TO_BE32(sizeof(struct mdrt_table)),
.act_len = CPU_TO_BE32(sizeof(struct mdrt_table)),
},
},
};
/* The service processor SPIRA-S structure */
struct spiras *spiras;
/* Overridden for testing. */
#ifndef spira_check_ptr
bool spira_check_ptr(const void *ptr, const char *file, unsigned int line)
{
if (!ptr)
return false;
if (((unsigned long)ptr) >= SPIRA_HEAP_BASE &&
((unsigned long)ptr) < (SPIRA_HEAP_BASE + SPIRA_HEAP_SIZE))
return true;
prerror("SPIRA: Bad pointer %p at %s line %d\n", ptr, file, line);
return false;
}
#endif
struct HDIF_common_hdr *__get_hdif(struct spira_ntuple *n, const char id[],
const char *file, int line)
{
struct HDIF_common_hdr *h = ntuple_addr(n);
u16 act_cnt, alloc_cnt;
u32 act_len, alloc_len;
if (!spira_check_ptr(h, file, line))
return NULL;
act_cnt = be16_to_cpu(n->act_cnt);
alloc_cnt = be16_to_cpu(n->alloc_cnt);
if (act_cnt > alloc_cnt) {
prerror("SPIRA: bad ntuple, act_cnt > alloc_cnt (%u > %u)\n",
act_cnt, alloc_cnt);
return NULL;
}
act_len = be32_to_cpu(n->act_len);
alloc_len = be32_to_cpu(n->alloc_len);
if (act_len > alloc_len) {
prerror("SPIRA: bad ntuple, act_len > alloc_len (%u > %u)\n",
act_len, alloc_len);
return NULL;
}
if (!HDIF_check(h, id)) {
prerror("SPIRA: bad tuple %p: expected %s at %s line %d\n",
h, id, file, line);
return NULL;
}
return h;
}
static struct dt_node *add_xscom_node(uint64_t base, uint32_t hw_id,
uint32_t proc_chip_id)
{
struct dt_node *node;
uint64_t addr, size;
uint64_t freq;
switch (proc_gen) {
case proc_gen_p8:
/* On P8 all the chip SCOMs share single region */
addr = base | ((uint64_t)hw_id << PPC_BITLSHIFT(28));
break;
case proc_gen_p9:
default:
/* On P9 we need to put the chip ID in the natural powerbus
* position.
*/
addr = base | (((uint64_t)hw_id) << 42);
break;
};
size = (u64)1 << PPC_BITLSHIFT(28);
prlog(PR_INFO, "XSCOM: Found HW ID 0x%x (PCID 0x%x) @ 0x%llx\n",
hw_id, proc_chip_id, (long long)addr);
node = dt_new_addr(dt_root, "xscom", addr);
if (!node)
return NULL;
dt_add_property_cells(node, "ibm,chip-id", hw_id);
dt_add_property_cells(node, "ibm,proc-chip-id", proc_chip_id);
dt_add_property_cells(node, "#address-cells", 1);
dt_add_property_cells(node, "#size-cells", 1);
dt_add_property(node, "scom-controller", NULL, 0);
switch(proc_gen) {
case proc_gen_p8:
dt_add_property_strings(node, "compatible",
"ibm,xscom", "ibm,power8-xscom");
break;
case proc_gen_p9:
dt_add_property_strings(node, "compatible",
"ibm,xscom", "ibm,power9-xscom");
break;
default:
dt_add_property_strings(node, "compatible", "ibm,xscom");
}
dt_add_property_u64s(node, "reg", addr, size);
/*
* The bus-frequency of the xscom node is actually the PIB/PCB
* frequency. It is derived from the nest-clock via a 4:1 divider
*/
freq = dt_prop_get_u64_def(dt_root, "nest-frequency", 0);
freq /= 4;
if (freq)
dt_add_property_u64(node, "bus-frequency", freq);
return node;
}
/*
* Given a xscom@ node this will return a pointer into the SPPCRD
* structure corresponding to that node
*/
#define GET_HDIF_HDR -1
static const void *xscom_to_pcrd(struct dt_node *xscom, int idata_index)
{
struct spira_ntuple *t = &spira.ntuples.proc_chip;
const struct HDIF_common_hdr *hdif;
const void *idata;
unsigned int size;
uint32_t i;
void *base;
i = dt_prop_get_u32_def(xscom, DT_PRIVATE "sppcrd-index", 0xffffffff);
if (i == 0xffffffff)
return NULL;
base = get_hdif(t, "SPPCRD");
assert(base);
assert(i < be16_to_cpu(t->act_cnt));
hdif = base + i * be32_to_cpu(t->alloc_len);
assert(hdif);
if (idata_index == GET_HDIF_HDR)
return hdif;
idata = HDIF_get_idata(hdif, idata_index, &size);
if (!idata || !size)
return NULL;
return idata;
}
struct dt_node *find_xscom_for_chip(uint32_t chip_id)
{
struct dt_node *node;
uint32_t id;
dt_for_each_compatible(dt_root, node, "ibm,xscom") {
id = dt_get_chip_id(node);
if (id == chip_id)
return node;
}
return NULL;
}
static void add_psihb_node(struct dt_node *np)
{
u32 psi_scom, psi_slen;
const char *psi_comp;
/*
* We add a few things under XSCOM that aren't added
* by any other HDAT path
*/
/* PSI host bridge */
switch(proc_gen) {
case proc_gen_p8:
psi_scom = 0x2010900;
psi_slen = 0x20;
psi_comp = "ibm,power8-psihb-x";
break;
case proc_gen_p9:
psi_scom = 0x5012900;
psi_slen = 0x100;
psi_comp = "ibm,power9-psihb-x";
break;
default:
psi_comp = NULL;
}
if (psi_comp) {
struct dt_node *psi_np;
psi_np = dt_new_addr(np, "psihb", psi_scom);
if (!psi_np)
return;
dt_add_property_cells(psi_np, "reg", psi_scom, psi_slen);
dt_add_property_strings(psi_np, "compatible", psi_comp,
"ibm,psihb-x");
}
}
static void add_xive_node(struct dt_node *np)
{
struct dt_node *xive = dt_new_addr(np, "xive", 0x5013000);
dt_add_property_cells(xive, "reg", 0x5013000, 0x300);
dt_add_property_string(xive, "compatible", "ibm,power9-xive-x");
/* HACK: required for simics */
dt_add_property(xive, "force-assign-bars", NULL, 0);
}
/*
* SCOM Base Address from P9 SCOM Assignment spreadsheet
*/
#define VAS_SCOM_BASE_ADDR 0x03011800
static void add_vas_node(struct dt_node *np, int idx)
{
struct dt_node *vas = dt_new_addr(np, "vas", VAS_SCOM_BASE_ADDR);
dt_add_property_cells(vas, "reg", VAS_SCOM_BASE_ADDR, 0x300);
dt_add_property_string(vas, "compatible", "ibm,power9-vas-x");
dt_add_property_cells(vas, "ibm,vas-id", idx);
}
static void add_ecid_data(const struct HDIF_common_hdr *hdr,
struct dt_node *xscom)
{
char wafer_id[11];
uint8_t tmp;
int i;
uint32_t size = 0;
struct sppcrd_ecid *ecid;
const struct HDIF_array_hdr *ec_hdr;
ec_hdr = HDIF_get_idata(hdr, SPPCRD_IDATA_EC_LEVEL, &size);
if (!ec_hdr || !size)
return;
ecid = (void *)ec_hdr + be32_to_cpu(ec_hdr->offset);
dt_add_property_u64s(xscom, "ecid", be64_to_cpu(ecid->low),
be64_to_cpu(ecid->high));
/*
* bits 4:63 of ECID data contains wafter ID data (ten 6 bit fields
* each containing a code).
*/
for (i = 0; i < 10; i++) {
tmp = (u8)((be64_to_cpu(ecid->low) >> (i * 6)) & 0x3f);
if (tmp <= 9)
wafer_id[9 - i] = tmp + '0';
else if (tmp >= 0xA && tmp <= 0x23)
wafer_id[9 - i] = tmp + '0' + 7;
else if (tmp == 0x3D)
wafer_id[9 - i] = '-';
else if (tmp == 0x3E)
wafer_id[9 - i] = '.';
else if (tmp == 0x3F)
wafer_id[9 - i] = ' ';
else /* Unknown code */
wafer_id[9 - i] = tmp + '0';
}
wafer_id[10] = '\0';
dt_add_property_nstr(xscom, "wafer-id", wafer_id, 10);
dt_add_property_cells(xscom, "wafer-location",
(u32)((be64_to_cpu(ecid->high) >> 56) & 0xff),
(u32)((be64_to_cpu(ecid->high) >> 48) & 0xff));
}
static void add_xscom_add_pcia_assoc(struct dt_node *np, uint32_t pcid)
{
const struct HDIF_common_hdr *hdr;
u32 size;
/*
* The SPPCRD doesn't contain all the affinity data, we have
* to dig it out of a core. I assume this is so that node
* affinity can be different for groups of cores within the
* chip, but for now we are going to ignore that
*/
hdr = get_hdif(&spira.ntuples.pcia, SPPCIA_HDIF_SIG);
if (!hdr)
return;
for_each_pcia(hdr) {
const struct sppcia_core_unique *id;
id = HDIF_get_idata(hdr, SPPCIA_IDATA_CORE_UNIQUE, &size);
if (!id || size < sizeof(*id))
continue;
if (be32_to_cpu(id->proc_chip_id) != pcid)
continue;
dt_add_property_cells(np, "ibm,ccm-node-id",
be32_to_cpu(id->ccm_node_id));
dt_add_property_cells(np, "ibm,hw-card-id",
be32_to_cpu(id->hw_card_id));
dt_add_property_cells(np, "ibm,hw-module-id",
be32_to_cpu(id->hw_module_id));
if (!dt_find_property(np, "ibm,dbob-id"))
dt_add_property_cells(np, "ibm,dbob-id",
be32_to_cpu(id->drawer_book_octant_blade_id));
if (proc_gen < proc_gen_p9) {
dt_add_property_cells(np, "ibm,mem-interleave-scope",
be32_to_cpu(id->memory_interleaving_scope));
}
return;
}
}
static bool add_xscom_sppcrd(uint64_t xscom_base)
{
const struct HDIF_common_hdr *hdif;
unsigned int i, vpd_sz;
const void *vpd;
struct dt_node *np, *vpd_node;
for_each_ntuple_idx(&spira.ntuples.proc_chip, hdif, i,
SPPCRD_HDIF_SIG) {
const struct sppcrd_chip_info *cinfo;
const struct spira_fru_id *fru_id = NULL;
unsigned int csize;
u32 ve, version;
cinfo = HDIF_get_idata(hdif, SPPCRD_IDATA_CHIP_INFO, &csize);
if (!CHECK_SPPTR(cinfo)) {
prerror("XSCOM: Bad ChipID data %d\n", i);
continue;
}
ve = be32_to_cpu(cinfo->verif_exist_flags) & CHIP_VERIFY_MASK;
ve >>= CHIP_VERIFY_SHIFT;
if (ve == CHIP_VERIFY_NOT_INSTALLED ||
ve == CHIP_VERIFY_UNUSABLE)
continue;
/* Create the XSCOM node */
np = add_xscom_node(xscom_base,
be32_to_cpu(cinfo->xscom_id),
be32_to_cpu(cinfo->proc_chip_id));
if (!np)
continue;
dt_add_property_cells(np, DT_PRIVATE "sppcrd-index", i);
version = be16_to_cpu(hdif->version);
/* Version 0A has additional OCC related stuff */
if (version >= 0x000a) {
if (!dt_find_property(np, "ibm,dbob-id"))
dt_add_property_cells(np, "ibm,dbob-id",
be32_to_cpu(cinfo->dbob_id));
dt_add_property_cells(np, "ibm,occ-functional-state",
be32_to_cpu(cinfo->occ_state));
}
/* Add chip VPD */
vpd_node = dt_add_vpd_node(hdif, SPPCRD_IDATA_FRU_ID,
SPPCRD_IDATA_KW_VPD);
if (vpd_node)
dt_add_property_cells(vpd_node, "ibm,chip-id",
be32_to_cpu(cinfo->xscom_id));
fru_id = HDIF_get_idata(hdif, SPPCRD_IDATA_FRU_ID, NULL);
if (fru_id)
slca_vpd_add_loc_code(np, be16_to_cpu(fru_id->slca_index));
/* Add module VPD on version A and later */
if (version >= 0x000a) {
vpd = HDIF_get_idata(hdif, SPPCRD_IDATA_MODULE_VPD,
&vpd_sz);
if (CHECK_SPPTR(vpd)) {
dt_add_property(np, "ibm,module-vpd", vpd,
vpd_sz);
vpd_data_parse(np, vpd, vpd_sz);
if (vpd_node)
dt_add_proc_vendor(vpd_node, vpd, vpd_sz);
}
}
/*
* Extract additional associativity information from
* the core data. Pick one core on that chip
*/
add_xscom_add_pcia_assoc(np, be32_to_cpu(cinfo->proc_chip_id));
/* Add PSI Host bridge */
add_psihb_node(np);
if (proc_gen >= proc_gen_p9) {
add_xive_node(np);
parse_i2c_devs(hdif, SPPCRD_IDATA_HOST_I2C, np);
add_vas_node(np, i);
add_ecid_data(hdif, np);
if (be32_to_cpu(cinfo->verif_exist_flags) & CHIP_VERIFY_MASTER_PROC)
dt_add_property(np, "primary", NULL, 0);
}
/*
* Add sw checkstop scom address (ibm,sw-checkstop-fir)
*
* The latest HDAT versions have sw checkstop scom address
* info. But not sure from which version onwards (at least
* HDAT spec do not mention that explicitly). Hence use the
* sppcrd struct size returned by HDIF_get_idata to figure out
* whether it contains sw checkstop scom address info. Also
* check if sw_xstop_fir_scom address is non-zero.
*/
if ((csize >= (offsetof(struct sppcrd_chip_info,
sw_xstop_fir_bitpos) + 1)) &&
cinfo->sw_xstop_fir_scom) {
uint8_t fir_bit = cinfo->sw_xstop_fir_bitpos;
if (!dt_find_property(dt_root, "ibm,sw-checkstop-fir"))
dt_add_property_cells(dt_root,
"ibm,sw-checkstop-fir",
be32_to_cpu(cinfo->sw_xstop_fir_scom),
fir_bit);
}
}
return i > 0;
}
static void add_xscom(void)
{
const void *ms_vpd;
const struct msvpd_pmover_bsr_synchro *pmbs;
unsigned int size;
uint64_t xscom_base;
ms_vpd = get_hdif(&spira.ntuples.ms_vpd, MSVPD_HDIF_SIG);
if (!ms_vpd) {
prerror("XSCOM: Can't find MS VPD\n");
return;
}
pmbs = HDIF_get_idata(ms_vpd, MSVPD_IDATA_PMOVER_SYNCHRO, &size);
if (!CHECK_SPPTR(pmbs) || size < sizeof(*pmbs)) {
prerror("XSCOM: absent or bad PMBS size %u @ %p\n", size, pmbs);
return;
}
if (!(be32_to_cpu(pmbs->flags) & MSVPD_PMS_FLAG_XSCOMBASE_VALID)) {
prerror("XSCOM: No XSCOM base in PMBS, using default\n");
return;
}
xscom_base = be64_to_cpu(pmbs->xscom_addr);
/* Get rid of the top bits */
xscom_base = cleanup_addr(xscom_base);
/* First, try the new proc_chip ntuples for chip data */
if (add_xscom_sppcrd(xscom_base))
return;
}
static void add_chiptod_node(unsigned int chip_id, int flags)
{
struct dt_node *node, *xscom_node;
const char *compat_str;
uint32_t addr, len;
if ((flags & CHIPTOD_ID_FLAGS_STATUS_MASK) !=
CHIPTOD_ID_FLAGS_STATUS_OK)
return;
xscom_node = find_xscom_for_chip(chip_id);
if (!xscom_node) {
prerror("CHIPTOD: No xscom for chiptod %d?\n", chip_id);
return;
}
addr = 0x40000;
len = 0x34;
switch(proc_gen) {
case proc_gen_p8:
compat_str = "ibm,power8-chiptod";
break;
case proc_gen_p9:
compat_str = "ibm,power9-chiptod";
break;
default:
return;
}
prlog(PR_DEBUG, "CHIPTOD: Found on chip 0x%x %s\n", chip_id,
(flags & CHIPTOD_ID_FLAGS_PRIMARY) ? "[primary]" :
((flags & CHIPTOD_ID_FLAGS_SECONDARY) ? "[secondary]" : ""));
node = dt_new_addr(xscom_node, "chiptod", addr);
if (!node)
return;
dt_add_property_cells(node, "reg", addr, len);
dt_add_property_strings(node, "compatible", "ibm,power-chiptod",
compat_str);
if (flags & CHIPTOD_ID_FLAGS_PRIMARY)
dt_add_property(node, "primary", NULL, 0);
if (flags & CHIPTOD_ID_FLAGS_SECONDARY)
dt_add_property(node, "secondary", NULL, 0);
}
static bool add_chiptod_old(void)
{
const void *hdif;
unsigned int i;
bool found = false;
/*
* Locate chiptod ID structures in SPIRA
*/
if (!get_hdif(&spira.ntuples.chip_tod, "TOD "))
return found;
for_each_ntuple_idx(&spira.ntuples.chip_tod, hdif, i, "TOD ") {
const struct chiptod_chipid *id;
id = HDIF_get_idata(hdif, CHIPTOD_IDATA_CHIPID, NULL);
if (!CHECK_SPPTR(id)) {
prerror("CHIPTOD: Bad ChipID data %d\n", i);
continue;
}
add_chiptod_node(pcid_to_chip_id(be32_to_cpu(id->chip_id)),
be32_to_cpu(id->flags));
found = true;
}
return found;
}
static bool add_chiptod_new(void)
{
const void *hdif;
unsigned int i;
bool found = false;
/*
* Locate Proc Chip ID structures in SPIRA
*/
if (!get_hdif(&spira.ntuples.proc_chip, SPPCRD_HDIF_SIG))
return found;
for_each_ntuple_idx(&spira.ntuples.proc_chip, hdif, i,
SPPCRD_HDIF_SIG) {
const struct sppcrd_chip_info *cinfo;
const struct sppcrd_chip_tod *tinfo;
unsigned int size;
u32 ve, flags;
cinfo = HDIF_get_idata(hdif, SPPCRD_IDATA_CHIP_INFO, NULL);
if (!CHECK_SPPTR(cinfo)) {
prerror("CHIPTOD: Bad ChipID data %d\n", i);
continue;
}
ve = be32_to_cpu(cinfo->verif_exist_flags) & CHIP_VERIFY_MASK;
ve >>= CHIP_VERIFY_SHIFT;
if (ve == CHIP_VERIFY_NOT_INSTALLED ||
ve == CHIP_VERIFY_UNUSABLE)
continue;
tinfo = HDIF_get_idata(hdif, SPPCRD_IDATA_CHIP_TOD, &size);
if (!CHECK_SPPTR(tinfo)) {
prerror("CHIPTOD: Bad TOD data %d\n", i);
continue;
}
flags = be32_to_cpu(tinfo->flags);
/* The FSP may strip the chiptod info from HDAT; if we find
* a zero-ed out entry, assume that the chiptod is
* present, but we don't have any primary/secondary info. In
* this case, pick chip zero as the master.
*/
if (!size) {
flags = CHIPTOD_ID_FLAGS_STATUS_OK;
if (be32_to_cpu(cinfo->xscom_id) == 0x0)
flags |= CHIPTOD_ID_FLAGS_PRIMARY;
}
add_chiptod_node(be32_to_cpu(cinfo->xscom_id), flags);
found = true;
}
return found;
}
static void add_nx_node(u32 gcid)
{
struct dt_node *nx;
u32 addr;
u32 size;
struct dt_node *xscom;
xscom = find_xscom_for_chip(gcid);
if (xscom == NULL) {
prerror("NX%d: did not found xscom node.\n", gcid);
return;
}
/*
* The NX register space is relatively self contained on P7+ but
* a bit more messy on P8. However it's all contained within the
* PB chiplet port 1 so we'll stick to that in the "reg" property
* and let the NX "driver" deal with the details.
*/
addr = 0x2010000;
size = 0x0004000;
nx = dt_new_addr(xscom, "nx", addr);
if (!nx)
return;
switch (proc_gen) {
case proc_gen_p8:
dt_add_property_strings(nx, "compatible", "ibm,power-nx",
"ibm,power8-nx");
break;
case proc_gen_p9:
/* POWER9 NX is not software compatible with P7/P8 NX */
dt_add_property_strings(nx, "compatible", "ibm,power9-nx");
break;
default:
return;
}
dt_add_property_cells(nx, "reg", addr, size);
}
static void add_nx(void)
{
unsigned int i;
void *hdif;
for_each_ntuple_idx(&spira.ntuples.proc_chip, hdif, i,
SPPCRD_HDIF_SIG) {
const struct sppcrd_chip_info *cinfo;
u32 ve;
cinfo = HDIF_get_idata(hdif, SPPCRD_IDATA_CHIP_INFO, NULL);
if (!CHECK_SPPTR(cinfo)) {
prerror("NX: Bad ChipID data %d\n", i);
continue;
}
ve = be32_to_cpu(cinfo->verif_exist_flags) & CHIP_VERIFY_MASK;
ve >>= CHIP_VERIFY_SHIFT;
if (ve == CHIP_VERIFY_NOT_INSTALLED ||
ve == CHIP_VERIFY_UNUSABLE)
continue;
if (cinfo->nx_state)
add_nx_node(be32_to_cpu(cinfo->xscom_id));
}
}
static void add_nmmu(void)
{
struct dt_node *xscom, *nmmu;
/* Nest MMU only exists on POWER9 */
if (proc_gen != proc_gen_p9)
return;
dt_for_each_compatible(dt_root, xscom, "ibm,xscom") {
nmmu = dt_new_addr(xscom, "nmmu", 0x5012c40);
dt_add_property_strings(nmmu, "compatible", "ibm,power9-nest-mmu");
dt_add_property_cells(nmmu, "reg", 0x5012c40, 0x20);
}
}
static void dt_init_secureboot_node(const struct iplparams_sysparams *sysparams)
{
struct dt_node *node;
u16 sys_sec_setting;
u16 hw_key_hash_size;
node = dt_new(dt_root, "ibm,secureboot");
assert(node);
dt_add_property_string(node, "compatible", "ibm,secureboot-v2");
sys_sec_setting = be16_to_cpu(sysparams->sys_sec_setting);
if (sys_sec_setting & SEC_CONTAINER_SIG_CHECKING)
dt_add_property(node, "secure-enabled", NULL, 0);
if (sys_sec_setting & SEC_HASHES_EXTENDED_TO_TPM)
dt_add_property(node, "trusted-enabled", NULL, 0);
hw_key_hash_size = be16_to_cpu(sysparams->hw_key_hash_size);
/* Prevent hw-key-hash buffer overflow by truncating hw-key-hash-size if
* it is bigger than the hw-key-hash buffer.
* Secure boot will be enforced later in skiboot, if the hw-key-hash-size
* was not supposed to be SYSPARAMS_HW_KEY_HASH_MAX.
*/
if (hw_key_hash_size > SYSPARAMS_HW_KEY_HASH_MAX) {
prlog(PR_ERR, "IPLPARAMS: hw-key-hash-size=%d too big, "
"truncating to %d\n", hw_key_hash_size,
SYSPARAMS_HW_KEY_HASH_MAX);
hw_key_hash_size = SYSPARAMS_HW_KEY_HASH_MAX;
}
dt_add_property(node, "hw-key-hash", sysparams->hw_key_hash,
hw_key_hash_size);
dt_add_property_cells(node, "hw-key-hash-size", hw_key_hash_size);
}
static void add_iplparams_sys_params(const void *iplp, struct dt_node *node)
{
const struct iplparams_sysparams *p;
const struct HDIF_common_hdr *hdif = iplp;
u16 version = be16_to_cpu(hdif->version);
const char *vendor = NULL;
u32 sys_attributes;
p = HDIF_get_idata(iplp, IPLPARAMS_SYSPARAMS, NULL);
if (!CHECK_SPPTR(p)) {
prerror("IPLPARAMS: No SYS Parameters\n");
/* Create a generic compatible property */
dt_add_property_string(dt_root, "compatible", "ibm,powernv");
return;
}
node = dt_new(node, "sys-params");
assert(node);
dt_add_property_cells(node, "#address-cells", 0);
dt_add_property_cells(node, "#size-cells", 0);
dt_add_property_nstr(node, "ibm,sys-model", p->sys_model, 4);
/*
* Compatible has up to three entries:
* "ibm,powernv", the system family and system type.
*
* On P9 and above the family and type strings come from the HDAT
* directly. On P8 we find it from the system ID numbers.
*/
if (proc_gen >= proc_gen_p9) {
dt_add_property_strings(dt_root, "compatible", "ibm,powernv",
p->sys_family_str, p->sys_type_str);
prlog(PR_INFO, "IPLPARAMS: v0x70 Platform family/type: %s/%s\n",
p->sys_family_str, p->sys_type_str);
} else {
u32 sys_type = be32_to_cpu(p->system_type);
const char *sys_family;
switch (sys_type >> 28) {
case 0:
sys_family = "ibm,squadrons";
break;
case 1:
sys_family = "ibm,eclipz";
break;
case 2:
sys_family = "ibm,apollo";
break;
case 3:
sys_family = "ibm,firenze";
break;
default:
sys_family = NULL;
prerror("IPLPARAMS: Unknown system family\n");
break;
}
dt_add_property_strings(dt_root, "compatible", "ibm,powernv",
sys_family);
prlog(PR_INFO,
"IPLPARAMS: Legacy platform family: %s"
" (sys_type=0x%08x)\n", sys_family, sys_type);
}
/* Grab nest frequency when available */
if (version >= 0x005b) {
u64 freq = be32_to_cpu(p->nest_freq_mhz);