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arch/x86: Fix ugly NEED_LAPIC use

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Change-Id: I2d6fdfd0465fe5f558daa04c6f980f7226596b55
Signed-off-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-on: https://review.coreboot.org/21087
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
This commit is contained in:
Kyösti Mälkki
2017-08-18 12:11:16 +03:00
parent aeb2d64c85
commit ff284f6566
3 changed files with 31 additions and 47 deletions
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24
src/cpu/x86/lapic/lapic.c
View File

@@ -16,7 +16,7 @@
#include <cpu/x86/msr.h>
#include <cpu/x86/mtrr.h>
void setup_lapic(void)
void do_lapic_init(void)
{
/* this is so interrupts work. This is very limited scope --
* linux will do better later, we hope ...
@@ -26,18 +26,10 @@ void setup_lapic(void)
* see the Intel mp1.4 spec, page A-3
*/
#if NEED_LAPIC == 1
/* Only Pentium Pro and later have those MSR stuff */
msr_t msr;
printk(BIOS_INFO, "Setting up local APIC...");
/* Enable the local APIC */
msr = rdmsr(LAPIC_BASE_MSR);
msr.lo |= LAPIC_BASE_MSR_ENABLE;
msr.lo &= ~LAPIC_BASE_MSR_ADDR_MASK;
msr.lo |= LAPIC_DEFAULT_BASE;
wrmsr(LAPIC_BASE_MSR, msr);
enable_lapic();
/*
* Set Task Priority to 'accept all'.
@@ -69,17 +61,5 @@ void setup_lapic(void)
);
printk(BIOS_DEBUG, " apic_id: 0x%02lx ", lapicid());
#else /* !NEED_LAPIC */
/* Only Pentium Pro and later have those MSR stuff */
msr_t msr;
printk(BIOS_INFO, "Disabling local APIC...");
msr = rdmsr(LAPIC_BASE_MSR);
msr.lo &= ~LAPIC_BASE_MSR_ENABLE;
wrmsr(LAPIC_BASE_MSR, msr);
#endif /* !NEED_LAPIC */
printk(BIOS_INFO, "done.\n");
post_code(0x9b);
}

22
src/cpu/x86/lapic/lapic_cpu_init.c
View File

@@ -541,18 +541,18 @@ void initialize_cpus(struct bus *cpu_bus)
/* Find the info struct for this CPU */
info = cpu_info();
#if NEED_LAPIC == 1
/* Ensure the local APIC is enabled */
enable_lapic();
if (need_lapic_init()) {
/* Ensure the local APIC is enabled */
enable_lapic();
/* Get the device path of the boot CPU */
cpu_path.type = DEVICE_PATH_APIC;
cpu_path.apic.apic_id = lapicid();
#else
/* Get the device path of the boot CPU */
cpu_path.type = DEVICE_PATH_CPU;
cpu_path.cpu.id = 0;
#endif
/* Get the device path of the boot CPU */
cpu_path.type = DEVICE_PATH_APIC;
cpu_path.apic.apic_id = lapicid();
} else {
/* Get the device path of the boot CPU */
cpu_path.type = DEVICE_PATH_CPU;
cpu_path.cpu.id = 0;
}
/* Find the device structure for the boot CPU */
info->cpu = alloc_find_dev(cpu_bus, &cpu_path);