From 17fc14ff1bdbc393e1cf4f6fd1e1e53d72ab9fe5 Mon Sep 17 00:00:00 2001 From: Jacob Shin Date: Mon, 26 Jun 2006 13:58:47 +0200 Subject: [PATCH] [PATCH] x86_64: apic support for extended apic interrupt Add support for extended APIC LVT found in future AMD processors. Signed-off-by: Jacob Shin Signed-off-by: Andi Kleen Signed-off-by: Linus Torvalds --- arch/x86_64/kernel/apic.c | 10 ++++------ include/asm-x86_64/apic.h | 11 ++++++++++- 2 files changed, 14 insertions(+), 7 deletions(-) diff --git a/arch/x86_64/kernel/apic.c b/arch/x86_64/kernel/apic.c index 53fc17d894e..396e125cb21 100644 --- a/arch/x86_64/kernel/apic.c +++ b/arch/x86_64/kernel/apic.c @@ -909,15 +909,13 @@ int setup_profiling_timer(unsigned int multiplier) return -EINVAL; } -#ifdef CONFIG_X86_MCE_AMD -void setup_threshold_lvt(unsigned long lvt_off) +void setup_APIC_extened_lvt(unsigned char lvt_off, unsigned char vector, + unsigned char msg_type, unsigned char mask) { - unsigned int v = 0; - unsigned long reg = (lvt_off << 4) + 0x500; - v |= THRESHOLD_APIC_VECTOR; + unsigned long reg = (lvt_off << 4) + K8_APIC_EXT_LVT_BASE; + unsigned int v = (mask << 16) | (msg_type << 8) | vector; apic_write(reg, v); } -#endif /* CONFIG_X86_MCE_AMD */ #undef APIC_DIVISOR diff --git a/include/asm-x86_64/apic.h b/include/asm-x86_64/apic.h index c9e6c2501a4..9d43ac8519b 100644 --- a/include/asm-x86_64/apic.h +++ b/include/asm-x86_64/apic.h @@ -84,9 +84,18 @@ extern void disable_APIC_timer(void); extern void enable_APIC_timer(void); extern void clustered_apic_check(void); +extern void setup_APIC_extened_lvt(unsigned char lvt_off, unsigned char vector, + unsigned char msg_type, unsigned char mask); + +#define K8_APIC_EXT_LVT_BASE 0x500 +#define K8_APIC_EXT_INT_MSG_FIX 0x0 +#define K8_APIC_EXT_INT_MSG_SMI 0x2 +#define K8_APIC_EXT_INT_MSG_NMI 0x4 +#define K8_APIC_EXT_INT_MSG_EXT 0x7 +#define K8_APIC_EXT_LVT_ENTRY_THRESHOLD 0 + extern int disable_timer_pin_1; -extern void setup_threshold_lvt(unsigned long lvt_off); void smp_send_timer_broadcast_ipi(void); void switch_APIC_timer_to_ipi(void *cpumask); -- 2.41.1