diff options
Diffstat (limited to 'src/cpu/intel/model_2065x')
| -rw-r--r-- | src/cpu/intel/model_2065x/Makefile.inc | 4 | ||||
| -rw-r--r-- | src/cpu/intel/model_2065x/model_2065x_init.c | 23 | ||||
| -rw-r--r-- | src/cpu/intel/model_2065x/smmrelocate.c | 293 |
3 files changed, 24 insertions, 296 deletions
diff --git a/src/cpu/intel/model_2065x/Makefile.inc b/src/cpu/intel/model_2065x/Makefile.inc index 77b2f02b2d..3da26dd33b 100644 --- a/src/cpu/intel/model_2065x/Makefile.inc +++ b/src/cpu/intel/model_2065x/Makefile.inc @@ -7,7 +7,7 @@ subdirs-y += ../../x86/tsc subdirs-y += ../../intel/turbo subdirs-y += ../../intel/microcode subdirs-y += ../../x86/smm - +subdirs-y += ../smm/gen1 ramstage-y += tsc_freq.c romstage-y += tsc_freq.c @@ -20,5 +20,3 @@ smm-$(CONFIG_HAVE_SMI_HANDLER) += finalize.c cpu_microcode-$(CONFIG_CPU_MICROCODE_CBFS_GENERATE) += microcode_blob.c cpu_incs += $(src)/cpu/intel/model_2065x/cache_as_ram.inc - -ramstage-$(CONFIG_HAVE_SMI_HANDLER) += smmrelocate.c diff --git a/src/cpu/intel/model_2065x/model_2065x_init.c b/src/cpu/intel/model_2065x/model_2065x_init.c index 8e6970ee23..991bab89e0 100644 --- a/src/cpu/intel/model_2065x/model_2065x_init.c +++ b/src/cpu/intel/model_2065x/model_2065x_init.c @@ -35,6 +35,7 @@ #include <pc80/mc146818rtc.h> #include "model_2065x.h" #include "chip.h" +#include <cpu/intel/smm/gen1/smi.h> /* * List of supported C-states in this processor @@ -113,6 +114,28 @@ static acpi_cstate_t cstate_map[] = { { 0 } }; +int cpu_get_apic_id_map(int *apic_id_map) +{ + int i; + struct cpuid_result result; + unsigned threads_per_package, threads_per_core; + + /* Logical processors (threads) per core */ + result = cpuid_ext(0xb, 0); + threads_per_core = result.ebx & 0xffff; + + /* Logical processors (threads) per package */ + result = cpuid_ext(0xb, 1); + threads_per_package = result.ebx & 0xffff; + + for (i = 0; i < threads_per_package && i < CONFIG_MAX_CPUS; ++i) { + apic_id_map[i] = (i % threads_per_core) + + ((i / threads_per_core) << 2); + } + + return threads_per_package; +} + static void enable_vmx(void) { struct cpuid_result regs; diff --git a/src/cpu/intel/model_2065x/smmrelocate.c b/src/cpu/intel/model_2065x/smmrelocate.c deleted file mode 100644 index e357aa57e4..0000000000 --- a/src/cpu/intel/model_2065x/smmrelocate.c +++ /dev/null @@ -1,293 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2013 ChromeOS Authors - * - * 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. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc. - */ - -#define __SIMPLE_DEVICE__ - -#include <types.h> -#include <string.h> -#include <device/device.h> -#include <device/pci.h> -#include <cpu/cpu.h> -#include <cpu/x86/cache.h> -#include <cpu/x86/msr.h> -#include <cpu/x86/mtrr.h> -#include <cpu/x86/smm.h> -#include <console/console.h> -#include <northbridge/intel/nehalem/nehalem.h> -#include <southbridge/intel/ibexpeak/pch.h> -#include "model_2065x.h" - -#define CORE_THREAD_COUNT_MSR 0x35 - -#define SMRR_SUPPORTED (1<<11) - -struct smm_relocation_params { - u32 smram_base; - u32 smram_size; - u32 ied_base; - u32 ied_size; - msr_t smrr_base; - msr_t smrr_mask; -}; - -/* This gets filled in and used during relocation. */ -static struct smm_relocation_params smm_reloc_params; - -static inline void write_smrr(struct smm_relocation_params *relo_params) -{ - printk(BIOS_DEBUG, "Writing SMRR. base = 0x%08x, mask=0x%08x\n", - relo_params->smrr_base.lo, relo_params->smrr_mask.lo); - wrmsr(SMRRphysBase_MSR, relo_params->smrr_base); - wrmsr(SMRRphysMask_MSR, relo_params->smrr_mask); -} - -/* The relocation work is actually performed in SMM context, but the code - * resides in the ramstage module. This occurs by trampolining from the default - * SMRAM entry point to here. */ -static void asmlinkage cpu_smm_do_relocation(void *arg) -{ - em64t101_smm_state_save_area_t *save_state; - msr_t mtrr_cap; - struct smm_relocation_params *relo_params; - const struct smm_module_params *p; - const struct smm_runtime *runtime; - int cpu; - - p = arg; - runtime = p->runtime; - relo_params = p->arg; - cpu = p->cpu; - - if (cpu >= CONFIG_MAX_CPUS) { - printk(BIOS_CRIT, - "Invalid CPU number assigned in SMM stub: %d\n", cpu); - return; - } - - printk(BIOS_DEBUG, "In relocation handler: cpu %d\n", cpu); - - /* All threads need to set IEDBASE and SMBASE in the save state area. - * Since one thread runs at a time during the relocation the save state - * is the same for all cpus. */ - save_state = (void *)(runtime->smbase + SMM_DEFAULT_SIZE - - runtime->save_state_size); - - /* The relocated handler runs with all CPUs concurrently. Therefore - * stagger the entry points adjusting SMBASE downwards by save state - * size * CPU num. */ - save_state->smbase = relo_params->smram_base - - cpu * runtime->save_state_size; - save_state->iedbase = relo_params->ied_base; - - printk(BIOS_DEBUG, "New SMBASE=0x%08x IEDBASE=0x%08x @ %p\n", - save_state->smbase, save_state->iedbase, save_state); - - /* Write EMRR and SMRR MSRs based on indicated support. */ - mtrr_cap = rdmsr(MTRRcap_MSR); - if (mtrr_cap.lo & SMRR_SUPPORTED) - write_smrr(relo_params); - - southbridge_clear_smi_status(); -} - -static void fill_in_relocation_params(struct smm_relocation_params *params) -{ - u32 tseg_size; - u32 tsegmb; - u32 bgsm; - int phys_bits; - /* All range registers are aligned to 4KiB */ - const u32 rmask = ~((1 << 12) - 1); - - /* Some of the range registers are dependent on the number of physical - * address bits supported. */ - phys_bits = cpuid_eax(0x80000008) & 0xff; - - /* The range bounded by the TSEGMB and BGSM registers encompasses the - * SMRAM range as well as the IED range. However, the SMRAM available - * to the handler is 4MiB since the IEDRAM lives TSEGMB + 4MiB. - */ - tsegmb = pci_read_config32(PCI_DEV(0, 0, 0), TSEG) & ~1; - bgsm = pci_read_config32(PCI_DEV(0, 0, 0), D0F0_GTT_BASE); - tseg_size = bgsm - tsegmb; - - params->smram_base = tsegmb; - params->smram_size = 4 << 20; - params->ied_base = tsegmb + params->smram_size; - params->ied_size = tseg_size - params->smram_size; - - /* SMRR has 32-bits of valid address aligned to 4KiB. */ - params->smrr_base.lo = (params->smram_base & rmask) | MTRR_TYPE_WRBACK; - params->smrr_base.hi = 0; - params->smrr_mask.lo = (~(tseg_size - 1) & rmask) | MTRRphysMaskValid; - params->smrr_mask.hi = 0; -} - -static void make_apicid_map(int threads_per_package, int threads_per_core, struct smm_loader_params *relo_params) -{ - int i; - for (i = 0; i < threads_per_package; ++i) { - relo_params->runtime->apic_id_to_cpu[i] = (i % threads_per_core) - + ((i / threads_per_core) << 2); - } -} - -static int install_relocation_handler(int threads_per_package, int threads_per_core, - struct smm_relocation_params *relo_params) -{ - /* The default SMM entry happens serially at the default location. - * Therefore, there is only 1 concurrent save state area. Set the - * stack size to the save state size, and call into the - * do_relocation handler. */ - int save_state_size = sizeof(em64t101_smm_state_save_area_t); - struct smm_loader_params smm_params = { - .per_cpu_stack_size = save_state_size, - .num_concurrent_stacks = threads_per_package, - .per_cpu_save_state_size = save_state_size, - .num_concurrent_save_states = 1, - .handler = &cpu_smm_do_relocation, - .handler_arg = (void *)relo_params, - }; - - if (smm_setup_relocation_handler(&smm_params)) - return -1; - make_apicid_map(threads_per_package, threads_per_core, &smm_params); - return 0; -} - -static void setup_ied_area(struct smm_relocation_params *params) -{ - char *ied_base; - - struct ied_header ied = { - .signature = "INTEL RSVD", - .size = params->ied_size, - .reserved = {0}, - }; - - ied_base = (void *)params->ied_base; - - /* Place IED header at IEDBASE. */ - memcpy(ied_base, &ied, sizeof(ied)); - - /* Zero out 32KiB at IEDBASE + 1MiB */ - memset(ied_base + (1 << 20), 0, (32 << 10)); -} - -static int install_permanent_handler(int threads_per_package, int threads_per_core, - struct smm_relocation_params *relo_params) -{ - /* There are threads_per_package concurrent stacks and threads_per_package concurrent save - * state areas. Lastly, set the stack size to the save state size. */ - int save_state_size = sizeof(em64t101_smm_state_save_area_t); - struct smm_loader_params smm_params = { - .per_cpu_stack_size = save_state_size, - .num_concurrent_stacks = threads_per_package, - .per_cpu_save_state_size = save_state_size, - .num_concurrent_save_states = threads_per_package, - }; - - printk(BIOS_DEBUG, "Installing SMM handler to 0x%08x\n", - relo_params->smram_base); - if (smm_load_module((void *)relo_params->smram_base, - relo_params->smram_size, &smm_params)) - return -1; - make_apicid_map(threads_per_package, threads_per_core, &smm_params); - return 0; -} - -static int cpu_smm_setup(void) -{ - device_t qpdev = PCI_DEV(QUICKPATH_BUS, 0, 1); - struct cpuid_result result; - unsigned threads_per_package, threads_per_core; - - /* Logical processors (threads) per core */ - result = cpuid_ext(0xb, 0); - threads_per_core = result.ebx & 0xffff; - - /* Logical processors (threads) per package */ - result = cpuid_ext(0xb, 1); - threads_per_package = result.ebx & 0xffff; - - printk(BIOS_DEBUG, "Setting up SMI for CPU\n"); - - /* enable the SMM memory window */ - pci_write_config8(qpdev, QPD0F1_SMRAM, D_OPEN | G_SMRAME | C_BASE_SEG); - - fill_in_relocation_params(&smm_reloc_params); - - setup_ied_area(&smm_reloc_params); - - if (threads_per_package > CONFIG_MAX_CPUS) { - printk(BIOS_CRIT, - "Error: Hardware CPUs (%d) > MAX_CPUS (%d)\n", - threads_per_package, CONFIG_MAX_CPUS); - } - - if (install_relocation_handler(threads_per_package, threads_per_core, &smm_reloc_params)) { - printk(BIOS_CRIT, "SMM Relocation handler install failed.\n"); - return -1; - } - - if (install_permanent_handler(threads_per_package, threads_per_core, &smm_reloc_params)) { - printk(BIOS_CRIT, "SMM Permanent handler install failed.\n"); - return -1; - } - - /* Ensure the SMM handlers hit DRAM before performing first SMI. */ - /* TODO(adurbin): Is this really needed? */ - wbinvd(); - - /* close the SMM memory window and enable normal SMM */ - pci_write_config8(qpdev, QPD0F1_SMRAM, G_SMRAME | C_BASE_SEG); - - return 0; -} - -void smm_init(void) -{ - /* Return early if CPU SMM setup failed. */ - if (cpu_smm_setup()) - return; - - southbridge_smm_init(); - - /* Initiate first SMI to kick off SMM-context relocation. Note: this - * SMI being triggered here queues up an SMI in the APs which are in - * wait-for-SIPI state. Once an AP gets an SIPI it will service the SMI - * at the SMM_DEFAULT_BASE before jumping to startup vector. */ - southbridge_trigger_smi(); - - printk(BIOS_DEBUG, "Relocation complete.\n"); - - /* Lock down the SMRAM space. */ - smm_lock(); -} - -void smm_lock(void) -{ - /* LOCK the SMM memory window and enable normal SMM. - * After running this function, only a full reset can - * make the SMM registers writable again. - */ - printk(BIOS_DEBUG, "Locking SMM.\n"); - pci_write_config8(PCI_DEV(QUICKPATH_BUS, 0, 1), QPD0F1_SMRAM, - D_LCK | G_SMRAME | C_BASE_SEG); -} |