From 61c11341ed798db9b99b30c1711c1cf458457806 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Mon, 12 Sep 2005 18:49:23 +0200 Subject: [PATCH] [PATCH] x86-64: Remove esr disable hack in APIC code This was just needed for the Numasaurus, which fortunately doesn't support x86-64 CPUs. Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- arch/x86_64/kernel/apic.c | 21 +-------------------- include/asm-x86_64/apic.h | 1 - 2 files changed, 1 insertion(+), 21 deletions(-) diff --git a/arch/x86_64/kernel/apic.c b/arch/x86_64/kernel/apic.c index 375d369570ca..9af0cc3e2ccc 100644 --- a/arch/x86_64/kernel/apic.c +++ b/arch/x86_64/kernel/apic.c @@ -325,14 +325,6 @@ void __cpuinit setup_local_APIC (void) { unsigned int value, ver, maxlvt; - /* Pound the ESR really hard over the head with a big hammer - mbligh */ - if (esr_disable) { - apic_write(APIC_ESR, 0); - apic_write(APIC_ESR, 0); - apic_write(APIC_ESR, 0); - apic_write(APIC_ESR, 0); - } - value = apic_read(APIC_LVR); ver = GET_APIC_VERSION(value); @@ -434,7 +426,7 @@ void __cpuinit setup_local_APIC (void) value |= APIC_LVT_LEVEL_TRIGGER; apic_write_around(APIC_LVT1, value); - if (APIC_INTEGRATED(ver) && !esr_disable) { /* !82489DX */ + { unsigned oldvalue; maxlvt = get_maxlvt(); if (maxlvt > 3) /* Due to the Pentium erratum 3AP. */ @@ -452,17 +444,6 @@ void __cpuinit setup_local_APIC (void) apic_printk(APIC_VERBOSE, "ESR value after enabling vector: %08x, after %08x\n", oldvalue, value); - } else { - if (esr_disable) - /* - * Something untraceble is creating bad interrupts on - * secondary quads ... for the moment, just leave the - * ESR disabled - we can't do anything useful with the - * errors anyway - mbligh - */ - apic_printk(APIC_DEBUG, "Leaving ESR disabled.\n"); - else - apic_printk(APIC_DEBUG, "No ESR for 82489DX.\n"); } nmi_watchdog_default(); diff --git a/include/asm-x86_64/apic.h b/include/asm-x86_64/apic.h index 16ec82e16b21..1559d78894ac 100644 --- a/include/asm-x86_64/apic.h +++ b/include/asm-x86_64/apic.h @@ -111,7 +111,6 @@ extern unsigned int nmi_watchdog; #endif /* CONFIG_X86_LOCAL_APIC */ -#define esr_disable 0 extern unsigned boot_cpu_id; #endif /* __ASM_APIC_H */ -- 2.20.1