1 /** 2 * @file apic_compat.h 3 * Definitions and functions for APIC interaction 4 * 5 * @remark Copyright 2002 OProfile authors 6 * @remark Read the file COPYING 7 * 8 * @author Philippe Elie 9 * @author John Levon 10 */ 11 12 #ifndef APIC_COMPAT_H 13 #define APIC_COMPAT_H 14 15 #if V_BEFORE(2, 4, 0) 16 /* even on SMP, some defines are missing in 2.2 */ 17 #define APIC_LVR 0x30 18 #define APIC_LVTPC 0x340 19 #define APIC_LVTERR 0x370 20 #define GET_APIC_VERSION(x) ((x)&0xFF) 21 #define GET_APIC_MAXLVT(x) (((x) >> 16)&0xFF) 22 #define APIC_INTEGRATED(x) ((x)&0xF0) 23 #else 24 #include <asm/apic.h> 25 #include <asm/apicdef.h> 26 #include <asm/mpspec.h> 27 #endif 28 29 #ifndef MSR_IA32_APICBASE 30 #define MSR_IA32_APICBASE 0x1B 31 #endif 32 33 #ifndef APIC_SPIV_APIC_ENABLED 34 #define APIC_SPIV_APIC_ENABLED (1 << 8) 35 #endif 36 37 #ifndef APIC_DEFAULT_PHYS_BASE 38 #define APIC_DEFAULT_PHYS_BASE 0xfee00000 39 #endif 40 41 #if !defined(CONFIG_X86_LOCAL_APIC) 42 43 #define APIC_DEFAULT_PHYS_BASE 0xfee00000 44 #define APIC_SPIV 0xF0 45 #define APIC_ESR 0x280 46 #define APIC_LVTT 0x320 47 #define APIC_LVT0 0x350 48 #define APIC_LVT_MASKED (1 << 16) 49 #define APIC_LVT_LEVEL_TRIGGER (1 << 15) 50 #define APIC_MODE_NMI 0x4 51 #define APIC_MODE_EXINT 0x7 52 #define GET_APIC_DELIVERY_MODE(x) (((x) >> 8)&0x7) 53 #define SET_APIC_DELIVERY_MODE(x, y) (((x)&~0x700)|((y) << 8)) 54 #define APIC_LVT1 0x360 55 #define APIC_SEND_PENDING (1 << 12) 56 #define APIC_TDCR 0x3E0 57 #define APIC_TDR_DIV_1 0xB 58 59 /* when !CONFIG_X86_LOCAL_APIC we need to provide a valid va to map the 60 * the pa of APIC onto. This va must be un-cachable/un-swapable*/ 61 /*#define APIC_BASE (fix_to_virt(FIX_APIC_BASE))*/ 62 extern unsigned long virt_apic_base; 63 /* the other define above can be redefined until the ref is identical, this 64 * allow a compile time checking but this need to be redefined differently */ 65 #undef APIC_BASE 66 #define APIC_BASE virt_apic_base 67 68 static __inline void apic_write(unsigned long reg, unsigned long v) 69 { 70 *((volatile u32 *)(APIC_BASE+reg)) = v; 71 } 72 73 static __inline unsigned long apic_read(unsigned long reg) 74 { 75 return *((volatile u32 *)(APIC_BASE+reg)); 76 } 77 78 #endif /* !defined(CONFIG_X86_LOCAL_APIC) */ 79 80 #endif /* APIC_COMPAT_H */ 81
