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authorAndi Kleen <ak@suse.de>2005-09-12 18:49:24 +0200
committerLinus Torvalds <torvalds@g5.osdl.org>2005-09-12 10:49:55 -0700
commit5a40b7c2abdedcf53c9a6ee790991acfcef5b6c7 (patch)
treee326a2d01c30be580c14bd6c74c19a2807c1cdad
parent61c11341ed798db9b99b30c1711c1cf458457806 (diff)
[PATCH] x86-64: Remove code for outdated APICs
No x86-64 chipset has these APICs. Signed-off-by: Andi Kleen <ak@suse.de> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
-rw-r--r--arch/x86_64/kernel/apic.c15
-rw-r--r--arch/x86_64/kernel/io_apic.c20
-rw-r--r--arch/x86_64/kernel/smpboot.c11
3 files changed, 10 insertions, 36 deletions
diff --git a/arch/x86_64/kernel/apic.c b/arch/x86_64/kernel/apic.c
index 9af0cc3e2cc..fc84bea42fd 100644
--- a/arch/x86_64/kernel/apic.c
+++ b/arch/x86_64/kernel/apic.c
@@ -109,11 +109,8 @@ void clear_local_APIC(void)
if (maxlvt >= 4)
apic_write_around(APIC_LVTPC, APIC_LVT_MASKED);
v = GET_APIC_VERSION(apic_read(APIC_LVR));
- if (APIC_INTEGRATED(v)) { /* !82489DX */
- if (maxlvt > 3) /* Due to Pentium errata 3AP and 11AP. */
- apic_write(APIC_ESR, 0);
- apic_read(APIC_ESR);
- }
+ apic_write(APIC_ESR, 0);
+ apic_read(APIC_ESR);
}
void __init connect_bsp_APIC(void)
@@ -316,8 +313,6 @@ void __init init_bsp_APIC(void)
*/
apic_write_around(APIC_LVT0, APIC_DM_EXTINT);
value = APIC_DM_NMI;
- if (!APIC_INTEGRATED(ver)) /* 82489DX */
- value |= APIC_LVT_LEVEL_TRIGGER;
apic_write_around(APIC_LVT1, value);
}
@@ -422,15 +417,11 @@ void __cpuinit setup_local_APIC (void)
value = APIC_DM_NMI;
else
value = APIC_DM_NMI | APIC_LVT_MASKED;
- if (!APIC_INTEGRATED(ver)) /* 82489DX */
- value |= APIC_LVT_LEVEL_TRIGGER;
apic_write_around(APIC_LVT1, value);
{
unsigned oldvalue;
maxlvt = get_maxlvt();
- if (maxlvt > 3) /* Due to the Pentium erratum 3AP. */
- apic_write(APIC_ESR, 0);
oldvalue = apic_read(APIC_ESR);
value = ERROR_APIC_VECTOR; // enables sending errors
apic_write_around(APIC_LVTERR, value);
@@ -674,8 +665,6 @@ static void __setup_APIC_LVTT(unsigned int clocks)
ver = GET_APIC_VERSION(apic_read(APIC_LVR));
lvtt_value = APIC_LVT_TIMER_PERIODIC | LOCAL_TIMER_VECTOR;
- if (!APIC_INTEGRATED(ver))
- lvtt_value |= SET_APIC_TIMER_BASE(APIC_TIMER_BASE_DIV);
apic_write_around(APIC_LVTT, lvtt_value);
/*
diff --git a/arch/x86_64/kernel/io_apic.c b/arch/x86_64/kernel/io_apic.c
index 5f1529be123..0645dc83552 100644
--- a/arch/x86_64/kernel/io_apic.c
+++ b/arch/x86_64/kernel/io_apic.c
@@ -1022,13 +1022,11 @@ void __apicdebuginit print_local_APIC(void * dummy)
v = apic_read(APIC_TASKPRI);
printk(KERN_DEBUG "... APIC TASKPRI: %08x (%02x)\n", v, v & APIC_TPRI_MASK);
- if (APIC_INTEGRATED(ver)) { /* !82489DX */
- v = apic_read(APIC_ARBPRI);
- printk(KERN_DEBUG "... APIC ARBPRI: %08x (%02x)\n", v,
- v & APIC_ARBPRI_MASK);
- v = apic_read(APIC_PROCPRI);
- printk(KERN_DEBUG "... APIC PROCPRI: %08x\n", v);
- }
+ v = apic_read(APIC_ARBPRI);
+ printk(KERN_DEBUG "... APIC ARBPRI: %08x (%02x)\n", v,
+ v & APIC_ARBPRI_MASK);
+ v = apic_read(APIC_PROCPRI);
+ printk(KERN_DEBUG "... APIC PROCPRI: %08x\n", v);
v = apic_read(APIC_EOI);
printk(KERN_DEBUG "... APIC EOI: %08x\n", v);
@@ -1048,12 +1046,8 @@ void __apicdebuginit print_local_APIC(void * dummy)
printk(KERN_DEBUG "... APIC IRR field:\n");
print_APIC_bitfield(APIC_IRR);
- if (APIC_INTEGRATED(ver)) { /* !82489DX */
- if (maxlvt > 3) /* Due to the Pentium erratum 3AP. */
- apic_write(APIC_ESR, 0);
- v = apic_read(APIC_ESR);
- printk(KERN_DEBUG "... APIC ESR: %08x\n", v);
- }
+ v = apic_read(APIC_ESR);
+ printk(KERN_DEBUG "... APIC ESR: %08x\n", v);
v = apic_read(APIC_ICR);
printk(KERN_DEBUG "... APIC ICR: %08x\n", v);
diff --git a/arch/x86_64/kernel/smpboot.c b/arch/x86_64/kernel/smpboot.c
index d4b63281c0f..4efe36fe99a 100644
--- a/arch/x86_64/kernel/smpboot.c
+++ b/arch/x86_64/kernel/smpboot.c
@@ -610,16 +610,7 @@ static int __cpuinit wakeup_secondary_via_INIT(int phys_apicid, unsigned int sta
atomic_set(&init_deasserted, 1);
- /*
- * Should we send STARTUP IPIs ?
- *
- * Determine this based on the APIC version.
- * If we don't have an integrated APIC, don't send the STARTUP IPIs.
- */
- if (APIC_INTEGRATED(apic_version[phys_apicid]))
- num_starts = 2;
- else
- num_starts = 0;
+ num_starts = 2;
/*
* Run STARTUP IPI loop.