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author | Arthur Heymans <arthur@aheymans.xyz> | 2018-01-25 21:38:25 +0100 |
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committer | Patrick Georgi <pgeorgi@google.com> | 2019-01-23 14:45:34 +0000 |
commit | 6336d4c48d2f85629ff668da36711ea794f70ab5 (patch) | |
tree | 1cafe0dde00967c76897312d80fca723bf0a2f79 /src/cpu/intel/model_1067x/mp_init.c | |
parent | ea415b335f57bde8e744e0f40845cc6fdd671c71 (diff) | |
download | coreboot-6336d4c48d2f85629ff668da36711ea794f70ab5.tar.xz |
nb/intel/gm45: Use parallel MP init
This places the parallel mp ops up in the model_1067x dir and is
included from other Intel core2 CPU dirs that can use the same code.
Tested on Thinkpad X200 on which boot time is reduced by ~35ms.
Change-Id: Iac416f671407246ee223075eee1aff511e612889
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/23434
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Diffstat (limited to 'src/cpu/intel/model_1067x/mp_init.c')
-rw-r--r-- | src/cpu/intel/model_1067x/mp_init.c | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/src/cpu/intel/model_1067x/mp_init.c b/src/cpu/intel/model_1067x/mp_init.c new file mode 100644 index 0000000000..52e9d3f010 --- /dev/null +++ b/src/cpu/intel/model_1067x/mp_init.c @@ -0,0 +1,85 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2007-2009 coresystems GmbH + * 2012 secunet Security Networks AG + * + * 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 <console/console.h> +#include <cpu/x86/mtrr.h> +#include <cpu/x86/mp.h> +#include <cpu/intel/microcode.h> +#include <cpu/intel/smm/gen1/smi.h> +#include <cpu/intel/common/common.h> + +/* Parallel MP initialization support. */ +static const void *microcode_patch; + +static void pre_mp_init(void) +{ + /* Setup MTRRs based on physical address size. */ + x86_setup_mtrrs_with_detect(); + x86_mtrr_check(); +} + +static int get_cpu_count(void) +{ + const struct cpuid_result cpuid1 = cpuid(1); + const char cores = (cpuid1.ebx >> 16) & 0xf; + + printk(BIOS_DEBUG, "CPU has %u cores.\n", cores); + + return cores; +} + +/* the SMRR enable and lock bit need to be set in IA32_FEATURE_CONTROL + to enable SMRR so configure IA32_FEATURE_CONTROL early on */ +static void pre_mp_smm_init(void) +{ + smm_initialize(); +} + +static void per_cpu_smm_trigger(void) +{ + /* Relocate the SMM handler. */ + smm_relocate(); + + /* After SMM relocation a 2nd microcode load is required. */ + intel_microcode_load_unlocked(microcode_patch); +} + +static void post_mp_init(void) +{ + /* Now that all APs have been relocated as well as the BSP let SMIs + * start flowing. */ + southbridge_smm_init(); + + /* Lock down the SMRAM space. */ + smm_lock(); +} + +static const struct mp_ops mp_ops = { + .pre_mp_init = pre_mp_init, + .get_cpu_count = get_cpu_count, + .get_smm_info = smm_info, + .pre_mp_smm_init = pre_mp_smm_init, + .per_cpu_smm_trigger = per_cpu_smm_trigger, + .relocation_handler = smm_relocation_handler, + .post_mp_init = post_mp_init, +}; + +void bsp_init_and_start_aps(struct bus *cpu_bus) +{ + if (mp_init_with_smm(cpu_bus, &mp_ops)) + printk(BIOS_ERR, "MP initialization failure.\n"); +} |