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authorArthur Heymans <arthur@aheymans.xyz>2018-04-10 15:15:05 +0200
committerPatrick Georgi <pgeorgi@google.com>2019-01-23 14:46:36 +0000
commitf26693283655eff7c31275621439f8416eeb3242 (patch)
tree6c4533fcd186faed76e8805d5fa33b171447f67c /src/cpu/intel/model_106cx
parent6336d4c48d2f85629ff668da36711ea794f70ab5 (diff)
downloadcoreboot-f26693283655eff7c31275621439f8416eeb3242.tar.xz
nb/intel/i945: Use parallel MP init
Use the parallel mp init path to initialize AP's. This should result in a moderate speedup. Tested on Intel D945GCLF (1 core 2 threads), still boots fine and is 26ms faster compared to lapic_cpu_init. This removes the option to disable HT siblings. Change-Id: I955551b99e9cbc397f99c2a6bd355c6070390bcb Signed-off-by: Arthur Heymans <arthur@aheymans.xyz> Reviewed-on: https://review.coreboot.org/c/25600 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Diffstat (limited to 'src/cpu/intel/model_106cx')
-rw-r--r--src/cpu/intel/model_106cx/Makefile.inc1
-rw-r--r--src/cpu/intel/model_106cx/model_106cx_init.c12
2 files changed, 9 insertions, 4 deletions
diff --git a/src/cpu/intel/model_106cx/Makefile.inc b/src/cpu/intel/model_106cx/Makefile.inc
index 0703099097..eec544d79a 100644
--- a/src/cpu/intel/model_106cx/Makefile.inc
+++ b/src/cpu/intel/model_106cx/Makefile.inc
@@ -2,5 +2,6 @@ ramstage-y += model_106cx_init.c
subdirs-y += ../../x86/name
subdirs-y += ../common
subdirs-$(CONFIG_SMM_TSEG) += ../smm/gen1
+ramstage-$(CONFIG_PARALLEL_MP) += ../model_1067x/mp_init.c
cpu_microcode_bins += 3rdparty/blobs/cpu/intel/model_106cx/microcode.bin
diff --git a/src/cpu/intel/model_106cx/model_106cx_init.c b/src/cpu/intel/model_106cx/model_106cx_init.c
index a609aed550..24a9ad29f6 100644
--- a/src/cpu/intel/model_106cx/model_106cx_init.c
+++ b/src/cpu/intel/model_106cx/model_106cx_init.c
@@ -85,15 +85,18 @@ static void model_106cx_init(struct device *cpu)
x86_enable_cache();
/* Update the microcode */
- intel_update_microcode_from_cbfs();
+ if (!IS_ENABLED(CONFIG_PARALLEL_MP))
+ intel_update_microcode_from_cbfs();
/* Print processor name */
fill_processor_name(processor_name);
printk(BIOS_INFO, "CPU: %s.\n", processor_name);
/* Setup MTRRs */
- x86_setup_mtrrs();
- x86_mtrr_check();
+ if (!IS_ENABLED(CONFIG_PARALLEL_MP)) {
+ x86_setup_mtrrs();
+ x86_mtrr_check();
+ }
/* Enable the local CPU APICs */
setup_lapic();
@@ -110,7 +113,8 @@ static void model_106cx_init(struct device *cpu)
/* TODO: PIC thermal sensor control */
/* Start up my CPU siblings */
- intel_sibling_init(cpu);
+ if (!IS_ENABLED(CONFIG_PARALLEL_MP))
+ intel_sibling_init(cpu);
}
static struct device_operations cpu_dev_ops = {