[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 <ak@suse.de>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/arch/x86_64/kernel/apic.c b/arch/x86_64/kernel/apic.c
index 375d369..9af0cc3 100644 (file)
--- 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 16ec82e..1559d78 100644 (file)
--- 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 */