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authorFernando Luis [** ISO-8859-1 charset **] VázquezCao <fernando@oss.ntt.co.jp>2007-05-02 19:27:18 +0200
committerAndi Kleen <andi@basil.nowhere.org>2007-05-02 19:27:18 +0200
commit9062d888aa448318e38792b6879a795dd10adda4 (patch)
treefacddd433abf2adcc342bdcfb1ff5ddb3704b519 /arch/x86_64
parent45ae5e968ea01d8326833ca2863cec5183ce1930 (diff)
downloadop-kernel-dev-9062d888aa448318e38792b6879a795dd10adda4.zip
op-kernel-dev-9062d888aa448318e38792b6879a795dd10adda4.tar.gz
[PATCH] x86-64: __send_IPI_dest_field - x86_64
Implement __send_IPI_dest_field which can be used to send IPIs when the "destination shorthand" field of the ICR is set to 00 (destination field). Use it whenever possible. Signed-off-by: Fernando Luis Vazquez Cao <fernando@oss.ntt.co.jp> Signed-off-by: Andi Kleen <ak@suse.de>
Diffstat (limited to 'arch/x86_64')
-rw-r--r--arch/x86_64/kernel/genapic_flat.c23
1 files changed, 1 insertions, 22 deletions
diff --git a/arch/x86_64/kernel/genapic_flat.c b/arch/x86_64/kernel/genapic_flat.c
index 9e0a552..01d3939e 100644
--- a/arch/x86_64/kernel/genapic_flat.c
+++ b/arch/x86_64/kernel/genapic_flat.c
@@ -61,31 +61,10 @@ static void flat_init_apic_ldr(void)
static void flat_send_IPI_mask(cpumask_t cpumask, int vector)
{
unsigned long mask = cpus_addr(cpumask)[0];
- unsigned long cfg;
unsigned long flags;
local_irq_save(flags);
-
- /*
- * Wait for idle.
- */
- apic_wait_icr_idle();
-
- /*
- * prepare target chip field
- */
- cfg = __prepare_ICR2(mask);
- apic_write(APIC_ICR2, cfg);
-
- /*
- * program the ICR
- */
- cfg = __prepare_ICR(0, vector, APIC_DEST_LOGICAL);
-
- /*
- * Send the IPI. The write to APIC_ICR fires this off.
- */
- apic_write(APIC_ICR, cfg);
+ __send_IPI_dest_field(mask, vector, APIC_DEST_LOGICAL);
local_irq_restore(flags);
}
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