439 lines
11 KiB
C
439 lines
11 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _ASM_X86_APICDEF_H
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#define _ASM_X86_APICDEF_H
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/*
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* Constants for various Intel APICs. (local APIC, IOAPIC, etc.)
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*
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* Alan Cox <Alan.Cox@linux.org>, 1995.
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* Ingo Molnar <mingo@redhat.com>, 1999, 2000
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*/
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#define IO_APIC_DEFAULT_PHYS_BASE 0xfec00000
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#define APIC_DEFAULT_PHYS_BASE 0xfee00000
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/*
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* This is the IO-APIC register space as specified
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* by Intel docs:
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*/
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#define IO_APIC_SLOT_SIZE 1024
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#define APIC_ID 0x20
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#define APIC_LVR 0x30
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#define APIC_LVR_MASK 0xFF00FF
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#define APIC_LVR_DIRECTED_EOI (1 << 24)
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#define GET_APIC_VERSION(x) ((x) & 0xFFu)
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#define GET_APIC_MAXLVT(x) (((x) >> 16) & 0xFFu)
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#ifdef CONFIG_X86_32
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# define APIC_INTEGRATED(x) ((x) & 0xF0u)
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#else
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# define APIC_INTEGRATED(x) (1)
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#endif
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#define APIC_XAPIC(x) ((x) >= 0x14)
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#define APIC_EXT_SPACE(x) ((x) & 0x80000000)
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#define APIC_TASKPRI 0x80
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#define APIC_TPRI_MASK 0xFFu
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#define APIC_ARBPRI 0x90
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#define APIC_ARBPRI_MASK 0xFFu
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#define APIC_PROCPRI 0xA0
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#define APIC_EOI 0xB0
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#define APIC_EOI_ACK 0x0 /* Docs say 0 for future compat. */
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#define APIC_RRR 0xC0
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#define APIC_LDR 0xD0
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#define APIC_LDR_MASK (0xFFu << 24)
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#define GET_APIC_LOGICAL_ID(x) (((x) >> 24) & 0xFFu)
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#define SET_APIC_LOGICAL_ID(x) (((x) << 24))
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#define APIC_ALL_CPUS 0xFFu
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#define APIC_DFR 0xE0
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#define APIC_DFR_CLUSTER 0x0FFFFFFFul
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#define APIC_DFR_FLAT 0xFFFFFFFFul
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#define APIC_SPIV 0xF0
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#define APIC_SPIV_DIRECTED_EOI (1 << 12)
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#define APIC_SPIV_FOCUS_DISABLED (1 << 9)
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#define APIC_SPIV_APIC_ENABLED (1 << 8)
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#define APIC_ISR 0x100
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#define APIC_ISR_NR 0x8 /* Number of 32 bit ISR registers. */
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#define APIC_TMR 0x180
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#define APIC_IRR 0x200
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#define APIC_ESR 0x280
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#define APIC_ESR_SEND_CS 0x00001
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#define APIC_ESR_RECV_CS 0x00002
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#define APIC_ESR_SEND_ACC 0x00004
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#define APIC_ESR_RECV_ACC 0x00008
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#define APIC_ESR_SENDILL 0x00020
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#define APIC_ESR_RECVILL 0x00040
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#define APIC_ESR_ILLREGA 0x00080
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#define APIC_LVTCMCI 0x2f0
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#define APIC_ICR 0x300
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#define APIC_DEST_SELF 0x40000
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#define APIC_DEST_ALLINC 0x80000
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#define APIC_DEST_ALLBUT 0xC0000
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#define APIC_ICR_RR_MASK 0x30000
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#define APIC_ICR_RR_INVALID 0x00000
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#define APIC_ICR_RR_INPROG 0x10000
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#define APIC_ICR_RR_VALID 0x20000
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#define APIC_INT_LEVELTRIG 0x08000
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#define APIC_INT_ASSERT 0x04000
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#define APIC_ICR_BUSY 0x01000
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#define APIC_DEST_LOGICAL 0x00800
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#define APIC_DEST_PHYSICAL 0x00000
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#define APIC_DM_FIXED 0x00000
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#define APIC_DM_FIXED_MASK 0x00700
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#define APIC_DM_LOWEST 0x00100
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#define APIC_DM_SMI 0x00200
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#define APIC_DM_REMRD 0x00300
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#define APIC_DM_NMI 0x00400
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#define APIC_DM_INIT 0x00500
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#define APIC_DM_STARTUP 0x00600
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#define APIC_DM_EXTINT 0x00700
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#define APIC_VECTOR_MASK 0x000FF
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#define APIC_ICR2 0x310
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#define GET_XAPIC_DEST_FIELD(x) (((x) >> 24) & 0xFF)
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#define SET_XAPIC_DEST_FIELD(x) ((x) << 24)
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#define APIC_LVTT 0x320
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#define APIC_LVTTHMR 0x330
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#define APIC_LVTPC 0x340
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#define APIC_LVT0 0x350
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#define APIC_LVT_TIMER_ONESHOT (0 << 17)
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#define APIC_LVT_TIMER_PERIODIC (1 << 17)
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#define APIC_LVT_TIMER_TSCDEADLINE (2 << 17)
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#define APIC_LVT_MASKED (1 << 16)
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#define APIC_LVT_LEVEL_TRIGGER (1 << 15)
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#define APIC_LVT_REMOTE_IRR (1 << 14)
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#define APIC_INPUT_POLARITY (1 << 13)
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#define APIC_SEND_PENDING (1 << 12)
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#define APIC_MODE_MASK 0x700
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#define GET_APIC_DELIVERY_MODE(x) (((x) >> 8) & 0x7)
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#define SET_APIC_DELIVERY_MODE(x, y) (((x) & ~0x700) | ((y) << 8))
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#define APIC_MODE_FIXED 0x0
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#define APIC_MODE_NMI 0x4
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#define APIC_MODE_EXTINT 0x7
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#define APIC_LVT1 0x360
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#define APIC_LVTERR 0x370
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#define APIC_TMICT 0x380
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#define APIC_TMCCT 0x390
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#define APIC_TDCR 0x3E0
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#define APIC_SELF_IPI 0x3F0
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#define APIC_TDR_DIV_TMBASE (1 << 2)
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#define APIC_TDR_DIV_1 0xB
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#define APIC_TDR_DIV_2 0x0
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#define APIC_TDR_DIV_4 0x1
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#define APIC_TDR_DIV_8 0x2
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#define APIC_TDR_DIV_16 0x3
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#define APIC_TDR_DIV_32 0x8
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#define APIC_TDR_DIV_64 0x9
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#define APIC_TDR_DIV_128 0xA
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#define APIC_EFEAT 0x400
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#define APIC_ECTRL 0x410
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#define APIC_EILVTn(n) (0x500 + 0x10 * n)
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#define APIC_EILVT_NR_AMD_K8 1 /* # of extended interrupts */
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#define APIC_EILVT_NR_AMD_10H 4
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#define APIC_EILVT_NR_MAX APIC_EILVT_NR_AMD_10H
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#define APIC_EILVT_LVTOFF(x) (((x) >> 4) & 0xF)
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#define APIC_EILVT_MSG_FIX 0x0
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#define APIC_EILVT_MSG_SMI 0x2
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#define APIC_EILVT_MSG_NMI 0x4
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#define APIC_EILVT_MSG_EXT 0x7
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#define APIC_EILVT_MASKED (1 << 16)
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#define APIC_BASE (fix_to_virt(FIX_APIC_BASE))
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#define APIC_BASE_MSR 0x800
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#define XAPIC_ENABLE (1UL << 11)
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#define X2APIC_ENABLE (1UL << 10)
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#ifdef CONFIG_X86_32
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# define MAX_IO_APICS 64
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# define MAX_LOCAL_APIC 256
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#else
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# define MAX_IO_APICS 128
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# define MAX_LOCAL_APIC 32768
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#endif
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/*
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* All x86-64 systems are xAPIC compatible.
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* In the following, "apicid" is a physical APIC ID.
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*/
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#define XAPIC_DEST_CPUS_SHIFT 4
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#define XAPIC_DEST_CPUS_MASK ((1u << XAPIC_DEST_CPUS_SHIFT) - 1)
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#define XAPIC_DEST_CLUSTER_MASK (XAPIC_DEST_CPUS_MASK << XAPIC_DEST_CPUS_SHIFT)
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#define APIC_CLUSTER(apicid) ((apicid) & XAPIC_DEST_CLUSTER_MASK)
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#define APIC_CLUSTERID(apicid) (APIC_CLUSTER(apicid) >> XAPIC_DEST_CPUS_SHIFT)
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#define APIC_CPUID(apicid) ((apicid) & XAPIC_DEST_CPUS_MASK)
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#define NUM_APIC_CLUSTERS ((BAD_APICID + 1) >> XAPIC_DEST_CPUS_SHIFT)
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/*
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* the local APIC register structure, memory mapped. Not terribly well
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* tested, but we might eventually use this one in the future - the
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* problem why we cannot use it right now is the P5 APIC, it has an
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* errata which cannot take 8-bit reads and writes, only 32-bit ones ...
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*/
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#define u32 unsigned int
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struct local_apic {
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/*000*/ struct { u32 __reserved[4]; } __reserved_01;
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/*010*/ struct { u32 __reserved[4]; } __reserved_02;
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/*020*/ struct { /* APIC ID Register */
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u32 __reserved_1 : 24,
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phys_apic_id : 4,
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__reserved_2 : 4;
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u32 __reserved[3];
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} id;
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/*030*/ const
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struct { /* APIC Version Register */
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u32 version : 8,
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__reserved_1 : 8,
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max_lvt : 8,
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__reserved_2 : 8;
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u32 __reserved[3];
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} version;
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/*040*/ struct { u32 __reserved[4]; } __reserved_03;
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/*050*/ struct { u32 __reserved[4]; } __reserved_04;
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/*060*/ struct { u32 __reserved[4]; } __reserved_05;
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/*070*/ struct { u32 __reserved[4]; } __reserved_06;
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/*080*/ struct { /* Task Priority Register */
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u32 priority : 8,
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__reserved_1 : 24;
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u32 __reserved_2[3];
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} tpr;
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/*090*/ const
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struct { /* Arbitration Priority Register */
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u32 priority : 8,
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__reserved_1 : 24;
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u32 __reserved_2[3];
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} apr;
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/*0A0*/ const
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struct { /* Processor Priority Register */
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u32 priority : 8,
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__reserved_1 : 24;
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u32 __reserved_2[3];
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} ppr;
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/*0B0*/ struct { /* End Of Interrupt Register */
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u32 eoi;
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u32 __reserved[3];
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} eoi;
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/*0C0*/ struct { u32 __reserved[4]; } __reserved_07;
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/*0D0*/ struct { /* Logical Destination Register */
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u32 __reserved_1 : 24,
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logical_dest : 8;
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u32 __reserved_2[3];
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} ldr;
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/*0E0*/ struct { /* Destination Format Register */
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u32 __reserved_1 : 28,
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model : 4;
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u32 __reserved_2[3];
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} dfr;
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/*0F0*/ struct { /* Spurious Interrupt Vector Register */
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u32 spurious_vector : 8,
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apic_enabled : 1,
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focus_cpu : 1,
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__reserved_2 : 22;
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u32 __reserved_3[3];
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} svr;
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/*100*/ struct { /* In Service Register */
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/*170*/ u32 bitfield;
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u32 __reserved[3];
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} isr [8];
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/*180*/ struct { /* Trigger Mode Register */
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/*1F0*/ u32 bitfield;
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u32 __reserved[3];
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} tmr [8];
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/*200*/ struct { /* Interrupt Request Register */
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/*270*/ u32 bitfield;
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u32 __reserved[3];
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} irr [8];
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/*280*/ union { /* Error Status Register */
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struct {
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u32 send_cs_error : 1,
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receive_cs_error : 1,
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send_accept_error : 1,
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receive_accept_error : 1,
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__reserved_1 : 1,
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send_illegal_vector : 1,
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receive_illegal_vector : 1,
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illegal_register_address : 1,
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__reserved_2 : 24;
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u32 __reserved_3[3];
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} error_bits;
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struct {
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u32 errors;
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u32 __reserved_3[3];
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} all_errors;
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} esr;
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/*290*/ struct { u32 __reserved[4]; } __reserved_08;
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/*2A0*/ struct { u32 __reserved[4]; } __reserved_09;
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/*2B0*/ struct { u32 __reserved[4]; } __reserved_10;
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/*2C0*/ struct { u32 __reserved[4]; } __reserved_11;
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/*2D0*/ struct { u32 __reserved[4]; } __reserved_12;
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/*2E0*/ struct { u32 __reserved[4]; } __reserved_13;
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/*2F0*/ struct { u32 __reserved[4]; } __reserved_14;
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/*300*/ struct { /* Interrupt Command Register 1 */
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u32 vector : 8,
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delivery_mode : 3,
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destination_mode : 1,
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delivery_status : 1,
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__reserved_1 : 1,
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level : 1,
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trigger : 1,
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__reserved_2 : 2,
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shorthand : 2,
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__reserved_3 : 12;
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u32 __reserved_4[3];
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} icr1;
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/*310*/ struct { /* Interrupt Command Register 2 */
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union {
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u32 __reserved_1 : 24,
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phys_dest : 4,
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__reserved_2 : 4;
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u32 __reserved_3 : 24,
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logical_dest : 8;
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} dest;
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u32 __reserved_4[3];
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} icr2;
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/*320*/ struct { /* LVT - Timer */
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u32 vector : 8,
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__reserved_1 : 4,
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delivery_status : 1,
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__reserved_2 : 3,
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mask : 1,
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timer_mode : 1,
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__reserved_3 : 14;
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u32 __reserved_4[3];
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} lvt_timer;
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/*330*/ struct { /* LVT - Thermal Sensor */
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u32 vector : 8,
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delivery_mode : 3,
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__reserved_1 : 1,
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delivery_status : 1,
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__reserved_2 : 3,
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mask : 1,
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__reserved_3 : 15;
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u32 __reserved_4[3];
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} lvt_thermal;
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/*340*/ struct { /* LVT - Performance Counter */
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u32 vector : 8,
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delivery_mode : 3,
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__reserved_1 : 1,
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delivery_status : 1,
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__reserved_2 : 3,
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mask : 1,
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__reserved_3 : 15;
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u32 __reserved_4[3];
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} lvt_pc;
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/*350*/ struct { /* LVT - LINT0 */
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u32 vector : 8,
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delivery_mode : 3,
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__reserved_1 : 1,
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delivery_status : 1,
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polarity : 1,
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remote_irr : 1,
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trigger : 1,
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mask : 1,
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__reserved_2 : 15;
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u32 __reserved_3[3];
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} lvt_lint0;
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/*360*/ struct { /* LVT - LINT1 */
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u32 vector : 8,
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delivery_mode : 3,
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__reserved_1 : 1,
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delivery_status : 1,
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polarity : 1,
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remote_irr : 1,
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trigger : 1,
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mask : 1,
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__reserved_2 : 15;
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u32 __reserved_3[3];
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} lvt_lint1;
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/*370*/ struct { /* LVT - Error */
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u32 vector : 8,
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__reserved_1 : 4,
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delivery_status : 1,
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__reserved_2 : 3,
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mask : 1,
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__reserved_3 : 15;
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u32 __reserved_4[3];
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} lvt_error;
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/*380*/ struct { /* Timer Initial Count Register */
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u32 initial_count;
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u32 __reserved_2[3];
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} timer_icr;
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/*390*/ const
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struct { /* Timer Current Count Register */
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u32 curr_count;
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u32 __reserved_2[3];
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} timer_ccr;
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/*3A0*/ struct { u32 __reserved[4]; } __reserved_16;
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/*3B0*/ struct { u32 __reserved[4]; } __reserved_17;
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/*3C0*/ struct { u32 __reserved[4]; } __reserved_18;
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/*3D0*/ struct { u32 __reserved[4]; } __reserved_19;
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/*3E0*/ struct { /* Timer Divide Configuration Register */
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u32 divisor : 4,
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__reserved_1 : 28;
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u32 __reserved_2[3];
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} timer_dcr;
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/*3F0*/ struct { u32 __reserved[4]; } __reserved_20;
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} __attribute__ ((packed));
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#undef u32
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#ifdef CONFIG_X86_32
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#define BAD_APICID 0xFFu
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#else
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#define BAD_APICID 0xFFFFu
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#endif
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enum apic_delivery_modes {
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APIC_DELIVERY_MODE_FIXED = 0,
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APIC_DELIVERY_MODE_LOWESTPRIO = 1,
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APIC_DELIVERY_MODE_SMI = 2,
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APIC_DELIVERY_MODE_NMI = 4,
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APIC_DELIVERY_MODE_INIT = 5,
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APIC_DELIVERY_MODE_EXTINT = 7,
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};
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#endif /* _ASM_X86_APICDEF_H */
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