projects / linux-2.6-block.git / blame
| Commit | Line | Data |
|---|---|---|
| 79deb8e5 CG |
1 | /* |
| 2 | * Common bits for X2APIC cluster/physical modes. | |
| 3 | */ | |
| 4 | ||
| 5 | #ifndef _ASM_X86_X2APIC_H | |
| 6 | #define _ASM_X86_X2APIC_H | |
| 7 | ||
| 8 | #include <asm/apic.h> | |
| 9 | #include <asm/ipi.h> | |
| 10 | #include <linux/cpumask.h> | |
| 11 | ||
| 12 | /* | |
| 13 | * Need to use more than cpu 0, because we need more vectors | |
| 14 | * when MSI-X are used. | |
| 15 | */ | |
| 16 | static const struct cpumask *x2apic_target_cpus(void) | |
| 17 | { | |
| 18 | return cpu_online_mask; | |
| 19 | } | |
| 20 | ||
| b7157acf SP |
21 | static int x2apic_apic_id_valid(int apicid) |
| 22 | { | |
| 23 | return 1; | |
| 24 | } | |
| 25 | ||
| 79deb8e5 CG |
26 | static int x2apic_apic_id_registered(void) |
| 27 | { | |
| 28 | return 1; | |
| 29 | } | |
| 30 | ||
| 31 | /* | |
| 32 | * For now each logical cpu is in its own vector allocation domain. | |
| 33 | */ | |
| 34 | static void x2apic_vector_allocation_domain(int cpu, struct cpumask *retmask) | |
| 35 | { | |
| 36 | cpumask_clear(retmask); | |
| 37 | cpumask_set_cpu(cpu, retmask); | |
| 38 | } | |
| 39 | ||
| 40 | static void | |
| 41 | __x2apic_send_IPI_dest(unsigned int apicid, int vector, unsigned int dest) | |
| 42 | { | |
| 43 | unsigned long cfg = __prepare_ICR(0, vector, dest); | |
| 44 | native_x2apic_icr_write(cfg, apicid); | |
| 45 | } | |
| 46 | ||
| 47 | static unsigned int x2apic_get_apic_id(unsigned long id) | |
| 48 | { | |
| 49 | return id; | |
| 50 | } | |
| 51 | ||
| 52 | static unsigned long x2apic_set_apic_id(unsigned int id) | |
| 53 | { | |
| 54 | return id; | |
| 55 | } | |
| 56 | ||
| 57 | static int x2apic_phys_pkg_id(int initial_apicid, int index_msb) | |
| 58 | { | |
| 59 | return initial_apicid >> index_msb; | |
| 60 | } | |
| 61 | ||
| 62 | static void x2apic_send_IPI_self(int vector) | |
| 63 | { | |
| 64 | apic_write(APIC_SELF_IPI, vector); | |
| 65 | } | |
| 66 | ||
| 67 | #endif /* _ASM_X86_X2APIC_H */ |