aboutsummaryrefslogtreecommitdiffstats
path: root/arch/x86/include/asm/apic.h
diff options
context:
space:
mode:
Diffstat (limited to 'arch/x86/include/asm/apic.h')
-rw-r--r--arch/x86/include/asm/apic.h74
1 files changed, 68 insertions, 6 deletions
diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
index ab1d51a8855..fba49f66228 100644
--- a/arch/x86/include/asm/apic.h
+++ b/arch/x86/include/asm/apic.h
@@ -33,7 +33,13 @@
33 } while (0) 33 } while (0)
34 34
35 35
36#if defined(CONFIG_X86_LOCAL_APIC) && defined(CONFIG_X86_32)
36extern void generic_apic_probe(void); 37extern void generic_apic_probe(void);
38#else
39static inline void generic_apic_probe(void)
40{
41}
42#endif
37 43
38#ifdef CONFIG_X86_LOCAL_APIC 44#ifdef CONFIG_X86_LOCAL_APIC
39 45
@@ -41,6 +47,21 @@ extern unsigned int apic_verbosity;
41extern int local_apic_timer_c2_ok; 47extern int local_apic_timer_c2_ok;
42 48
43extern int disable_apic; 49extern int disable_apic;
50
51#ifdef CONFIG_SMP
52extern void __inquire_remote_apic(int apicid);
53#else /* CONFIG_SMP */
54static inline void __inquire_remote_apic(int apicid)
55{
56}
57#endif /* CONFIG_SMP */
58
59static inline void default_inquire_remote_apic(int apicid)
60{
61 if (apic_verbosity >= APIC_DEBUG)
62 __inquire_remote_apic(apicid);
63}
64
44/* 65/*
45 * Basic functions accessing APICs. 66 * Basic functions accessing APICs.
46 */ 67 */
@@ -124,12 +145,35 @@ struct apic_ops {
124 145
125extern struct apic_ops *apic_ops; 146extern struct apic_ops *apic_ops;
126 147
127#define apic_read (apic_ops->read) 148static inline u32 apic_read(u32 reg)
128#define apic_write (apic_ops->write) 149{
129#define apic_icr_read (apic_ops->icr_read) 150 return apic_ops->read(reg);
130#define apic_icr_write (apic_ops->icr_write) 151}
131#define apic_wait_icr_idle (apic_ops->wait_icr_idle) 152
132#define safe_apic_wait_icr_idle (apic_ops->safe_wait_icr_idle) 153static inline void apic_write(u32 reg, u32 val)
154{
155 apic_ops->write(reg, val);
156}
157
158static inline u64 apic_icr_read(void)
159{
160 return apic_ops->icr_read();
161}
162
163static inline void apic_icr_write(u32 low, u32 high)
164{
165 apic_ops->icr_write(low, high);
166}
167
168static inline void apic_wait_icr_idle(void)
169{
170 apic_ops->wait_icr_idle();
171}
172
173static inline u32 safe_apic_wait_icr_idle(void)
174{
175 return apic_ops->safe_wait_icr_idle();
176}
133 177
134extern int get_physical_broadcast(void); 178extern int get_physical_broadcast(void);
135 179
@@ -196,4 +240,22 @@ static inline void disable_local_APIC(void) { }
196 240
197#endif /* !CONFIG_X86_LOCAL_APIC */ 241#endif /* !CONFIG_X86_LOCAL_APIC */
198 242
243#ifdef CONFIG_X86_64
244#define SET_APIC_ID(x) (apic->set_apic_id(x))
245#else
246
247#ifdef CONFIG_X86_LOCAL_APIC
248static inline unsigned default_get_apic_id(unsigned long x)
249{
250 unsigned int ver = GET_APIC_VERSION(apic_read(APIC_LVR));
251
252 if (APIC_XAPIC(ver))
253 return (x >> 24) & 0xFF;
254 else
255 return (x >> 24) & 0x0F;
256}
257#endif
258
259#endif
260
199#endif /* _ASM_X86_APIC_H */ 261#endif /* _ASM_X86_APIC_H */