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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2007 Advanced Micro Devices, Inc.
* Copyright (C) 2015 Timothy Pearson <tpearson@raptorengineeringinc.com>,
* Raptor Engineering
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <arch/cpu.h>
#include <console/console.h>
#include <pc80/mc146818rtc.h>
#if IS_ENABLED(CONFIG_HAVE_OPTION_TABLE)
#include "option_table.h"
#endif
#include "cpu/amd/quadcore/quadcore_id.c"
u32 get_core_num_in_bsp(u32 nodeid)
{
u32 dword;
if (is_fam15h()) {
/* Family 15h moved CmpCap to F5x84 [7:0] */
dword = pci_read_config32(NODE_PCI(nodeid, 5), 0x84);
dword &= 0xff;
} else {
dword = pci_read_config32(NODE_PCI(nodeid, 3), 0xe8);
dword >>= 12;
/* Bit 15 is CmpCap[2] since Revision D. */
if ((cpuid_ecx(0x80000008) & 0xff) > 3)
dword = ((dword & 8) >> 1) | (dword & 3);
else
dword &= 3;
}
return dword;
}
u8 set_apicid_cpuid_lo(void)
{
// set the NB_CFG[54]=1; why the OS will be happy with that ???
msr_t msr;
msr = rdmsr(NB_CFG_MSR);
msr.hi |= (1<<(54-32)); // InitApicIdCpuIdLo
wrmsr(NB_CFG_MSR, msr);
return 1;
}
void real_start_other_core(uint32_t nodeid, uint32_t cores)
{
ssize_t i;
uint32_t dword;
printk(BIOS_DEBUG,
"Start other core - nodeid: %02x cores: %02x\n", nodeid, cores);
/* set PCI_DEV(0, 0x18+nodeid, 3), 0x44 bit 27 to redirect all MC4
accesses and error logging to core0 */
dword = pci_read_config32(NODE_PCI(nodeid, 3), 0x44);
dword |= 1 << 30; /* SyncFloodOnDramAdrParErr=1 */
dword |= 1 << 27; /* NbMcaToMstCpuEn=1 */
dword |= 1 << 21; /* SyncFloodOnAnyUcErr=1 */
dword |= 1 << 20; /* SyncFloodOnWDT=1 */
dword |= 1 << 2; /* SyncFloodOnDramUcEcc=1 */
pci_write_config32(NODE_PCI(nodeid, 3), 0x44, dword);
if (is_fam15h()) {
uint32_t core_activation_flags = 0;
uint32_t active_cores = 0;
/* Set PCI_DEV(0, 0x18+nodeid, 0),
* 0x1dc bits 7:1 to start cores
*/
dword = pci_read_config32(NODE_PCI(nodeid, 0), 0x1dc);
for (i = 1; i < cores + 1; i++)
core_activation_flags |= 1 << i;
/* Start the first core of each compute unit */
active_cores |= core_activation_flags & 0x55;
pci_write_config32(NODE_PCI(nodeid, 0), 0x1dc, dword
| active_cores);
/* Each core shares a single set of MTRR registers with
* another core in the same compute unit, therefore, it
* is important that one core in each CU starts in advance
* of the other in order to avoid one core stomping all over
* the other core's settings.
*/
/* Wait for the first core of each compute unit to start... */
uint32_t timeout;
for (i = 1; i < cores + 1; i++) {
if (!(i & 0x1)) {
uint32_t ap_apicid =
get_boot_apic_id(nodeid, i);
timeout = wait_cpu_state(ap_apicid,
F10_APSTATE_ASLEEP, F10_APSTATE_ASLEEP);
}
}
/* Start the second core of each compute unit */
active_cores |= core_activation_flags & 0xaa;
pci_write_config32(NODE_PCI(nodeid, 0), 0x1dc, dword |
active_cores);
} else {
// set PCI_DEV(0, 0x18+nodeid, 0), 0x68 bit 5 to start core1
dword = pci_read_config32(NODE_PCI(nodeid, 0), 0x68);
dword |= 1 << 5;
pci_write_config32(NODE_PCI(nodeid, 0), 0x68, dword);
if (cores > 1) {
dword = pci_read_config32(NODE_PCI(nodeid, 0), 0x168);
for (i = 0; i < cores - 1; i++)
dword |= 1 << i;
pci_write_config32(NODE_PCI(nodeid, 0), 0x168, dword);
}
}
}
#if (!IS_ENABLED(CONFIG_CPU_AMD_MODEL_10XXX))
//it is running on core0 of node0
static void start_other_cores(void)
{
u32 nodes;
u32 nodeid;
// disable multi_core
if (read_option(multi_core, 0) != 0) {
printk(BIOS_DEBUG, "Skip additional core init\n");
return;
}
nodes = get_nodes();
for (nodeid = 0; nodeid < nodes; nodeid++) {
u32 cores = get_core_num_in_bsp(nodeid);
printk(BIOS_DEBUG, "init node: %02x cores: %02x pass 1\n",
nodeid, cores);
if (cores > 0)
real_start_other_core(nodeid, cores);
}
}
#endif
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