The patch titled
x86_64: remove sync_Arb_IDs
has been added to the -mm tree. Its filename is
x86_64-remove-sync_arb_ids.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: x86_64: remove sync_Arb_IDs
From: Yinghai Lu <Yinghai.Lu@xxxxxxx>
i386 code said
/*
* Unsupported on P4 - see Intel Dev. Manual Vol. 3, Ch. 8.6.1 And not
* needed on AMD.
*/
So we don't need sync_Arb_IDs for x86_64...
Signed-off-by: Yinghai Lu <yinghai.lu@xxxxxxx>
Cc: Andi Kleen <ak@xxxxxxx>
Cc: "Eric W. Biederman" <ebiederm@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
arch/x86_64/kernel/apic.c | 17 -----------------
arch/x86_64/kernel/io_apic.c | 1 -
2 files changed, 18 deletions(-)
diff -puN arch/x86_64/kernel/apic.c~x86_64-remove-sync_arb_ids arch/x86_64/kernel/apic.c
--- a/arch/x86_64/kernel/apic.c~x86_64-remove-sync_arb_ids
+++ a/arch/x86_64/kernel/apic.c
@@ -282,23 +282,6 @@ int __init verify_local_APIC(void)
return 1;
}
-void __init sync_Arb_IDs(void)
-{
- /* Unsupported on P4 - see Intel Dev. Manual Vol. 3, Ch. 8.6.1 */
- unsigned int ver = GET_APIC_VERSION(apic_read(APIC_LVR));
- if (ver >= 0x14) /* P4 or higher */
- return;
-
- /*
- * Wait for idle.
- */
- apic_wait_icr_idle();
-
- apic_printk(APIC_DEBUG, "Synchronizing Arb IDs.\n");
- apic_write(APIC_ICR, APIC_DEST_ALLINC | APIC_INT_LEVELTRIG
- | APIC_DM_INIT);
-}
-
/*
* An initial setup of the virtual wire mode.
*/
diff -puN arch/x86_64/kernel/io_apic.c~x86_64-remove-sync_arb_ids arch/x86_64/kernel/io_apic.c
--- a/arch/x86_64/kernel/io_apic.c~x86_64-remove-sync_arb_ids
+++ a/arch/x86_64/kernel/io_apic.c
@@ -1827,7 +1827,6 @@ void __init setup_IO_APIC(void)
apic_printk(APIC_VERBOSE, "ENABLING IO-APIC IRQs\n");
- sync_Arb_IDs();
setup_IO_APIC_irqs();
init_IO_APIC_traps();
check_timer();
_
Patches currently in -mm which might be from Yinghai.Lu@xxxxxxx are
x86_64-remove-sync_arb_ids.patch
x86_64-clear-io_apic-before-enabing-apic-error-vector.patch
x86_64-get-mp_bus_to_node-as-early-v3.patch
x86_64-use-bus-conf-in-nb-conf-fun1-to-get-bus-range-on-node.patch
try-parent-numa_node-at-first-before-using-default.patch
net-use-numa_node-in-net_devcice-dev-instead-of-parent.patch
dma-use-dev_to_node-to-get-node-for-device-in-dma_alloc_pages.patch
-
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