From ea8c733b98b73289421ed8f8fc15cfbce3adc3bc Mon Sep 17 00:00:00 2001 From: Fernando Luis VazquezCao Date: Wed, 2 May 2007 19:27:17 +0200 Subject: [PATCH] [PATCH] x86-64: use safe_apic_wait_icr_idle in smpboot.c - x86_64 The functionality provided by the new safe_apic_wait_icr_idle is being open-coded all over "kernel/smpboot.c". Use safe_apic_wait_icr_idle instead to consolidate code and ease maintenance. Signed-off-by: Fernando Luis Vazquez Cao Signed-off-by: Andi Kleen --- arch/x86_64/kernel/smpboot.c | 25 +++++-------------------- 1 file changed, 5 insertions(+), 20 deletions(-) diff --git a/arch/x86_64/kernel/smpboot.c b/arch/x86_64/kernel/smpboot.c index ddc392bee2..f2a234b390 100644 --- a/arch/x86_64/kernel/smpboot.c +++ b/arch/x86_64/kernel/smpboot.c @@ -429,8 +429,8 @@ static void inquire_remote_apic(int apicid) */ static int __cpuinit wakeup_secondary_via_INIT(int phys_apicid, unsigned int start_rip) { - unsigned long send_status = 0, accept_status = 0; - int maxlvt, timeout, num_starts, j; + unsigned long send_status, accept_status = 0; + int maxlvt, num_starts, j; Dprintk("Asserting INIT.\n"); @@ -446,12 +446,7 @@ static int __cpuinit wakeup_secondary_via_INIT(int phys_apicid, unsigned int sta | APIC_DM_INIT); Dprintk("Waiting for send to finish...\n"); - timeout = 0; - do { - Dprintk("+"); - udelay(100); - send_status = apic_read(APIC_ICR) & APIC_ICR_BUSY; - } while (send_status && (timeout++ < 1000)); + send_status = safe_apic_wait_icr_idle(); mdelay(10); @@ -464,12 +459,7 @@ static int __cpuinit wakeup_secondary_via_INIT(int phys_apicid, unsigned int sta apic_write(APIC_ICR, APIC_INT_LEVELTRIG | APIC_DM_INIT); Dprintk("Waiting for send to finish...\n"); - timeout = 0; - do { - Dprintk("+"); - udelay(100); - send_status = apic_read(APIC_ICR) & APIC_ICR_BUSY; - } while (send_status && (timeout++ < 1000)); + send_status = safe_apic_wait_icr_idle(); mb(); atomic_set(&init_deasserted, 1); @@ -508,12 +498,7 @@ static int __cpuinit wakeup_secondary_via_INIT(int phys_apicid, unsigned int sta Dprintk("Startup point 1.\n"); Dprintk("Waiting for send to finish...\n"); - timeout = 0; - do { - Dprintk("+"); - udelay(100); - send_status = apic_read(APIC_ICR) & APIC_ICR_BUSY; - } while (send_status && (timeout++ < 1000)); + send_status = safe_apic_wait_icr_idle(); /* * Give the other CPU some time to accept the IPI. -- 2.39.5