[PATCH] x86-64: Remove apic_write_around from smpboot.c

We don't do workarounds for ancient hardware bugs.

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

diff --git a/arch/x86_64/kernel/smpboot.c b/arch/x86_64/kernel/smpboot.c
index 4fb34b5..d4b6328 100644 (file)
--- a/arch/x86_64/kernel/smpboot.c
+++ b/arch/x86_64/kernel/smpboot.c
@@ -540,8 +540,8 @@ static void inquire_remote_apic(int apicid)
                 */
                apic_wait_icr_idle();
 
                 */
                apic_wait_icr_idle();
 

-               apic_write_around(APIC_ICR2, SET_APIC_DEST_FIELD(apicid));
-               apic_write_around(APIC_ICR, APIC_DM_REMRD | regs[i]);
+               apic_write(APIC_ICR2, SET_APIC_DEST_FIELD(apicid));
+               apic_write(APIC_ICR, APIC_DM_REMRD | regs[i]);

 
                timeout = 0;
                do {
 
                timeout = 0;
                do {


@@ -574,12 +574,12 @@ static int __cpuinit wakeup_secondary_via_INIT(int phys_apicid, unsigned int sta
        /*
         * Turn INIT on target chip
         */
        /*
         * Turn INIT on target chip
         */

-       apic_write_around(APIC_ICR2, SET_APIC_DEST_FIELD(phys_apicid));
+       apic_write(APIC_ICR2, SET_APIC_DEST_FIELD(phys_apicid));

 
        /*
         * Send IPI
         */
 
        /*
         * Send IPI
         */

-       apic_write_around(APIC_ICR, APIC_INT_LEVELTRIG | APIC_INT_ASSERT
+       apic_write(APIC_ICR, APIC_INT_LEVELTRIG | APIC_INT_ASSERT

                                | APIC_DM_INIT);
 
        Dprintk("Waiting for send to finish...\n");
                                | APIC_DM_INIT);
 
        Dprintk("Waiting for send to finish...\n");


@@ -595,10 +595,10 @@ static int __cpuinit wakeup_secondary_via_INIT(int phys_apicid, unsigned int sta
        Dprintk("Deasserting INIT.\n");
 
        /* Target chip */
        Dprintk("Deasserting INIT.\n");
 
        /* Target chip */

-       apic_write_around(APIC_ICR2, SET_APIC_DEST_FIELD(phys_apicid));
+       apic_write(APIC_ICR2, SET_APIC_DEST_FIELD(phys_apicid));

 
        /* Send IPI */
 
        /* Send IPI */

-       apic_write_around(APIC_ICR, APIC_INT_LEVELTRIG | APIC_DM_INIT);
+       apic_write(APIC_ICR, APIC_INT_LEVELTRIG | APIC_DM_INIT);

 
        Dprintk("Waiting for send to finish...\n");
        timeout = 0;
 
        Dprintk("Waiting for send to finish...\n");
        timeout = 0;


@@ -640,12 +640,11 @@ static int __cpuinit wakeup_secondary_via_INIT(int phys_apicid, unsigned int sta
                 */
 
                /* Target chip */
                 */
 
                /* Target chip */

-               apic_write_around(APIC_ICR2, SET_APIC_DEST_FIELD(phys_apicid));
+               apic_write(APIC_ICR2, SET_APIC_DEST_FIELD(phys_apicid));

 
                /* Boot on the stack */
                /* Kick the second */
 
                /* Boot on the stack */
                /* Kick the second */

-               apic_write_around(APIC_ICR, APIC_DM_STARTUP
-                                       | (start_rip >> 12));
+               apic_write(APIC_ICR, APIC_DM_STARTUP | (start_rip >> 12));

 
                /*
                 * Give the other CPU some time to accept the IPI.
 
                /*
                 * Give the other CPU some time to accept the IPI.