/*
 * Copyright (c) 2010-2014 Wind River Systems, Inc.
 *
 * SPDX-License-Identifier: Apache-2.0
 */

/**
 * @file
 * @brief Private kernel definitions (IA-32)
 *
 * This file contains private kernel structures definitions and various
 * other definitions for the Intel Architecture 32 bit (IA-32) processor
 * architecture.
 * The header include/kernel.h contains the public kernel interface
 * definitions, with include/arch/x86/arch.h supplying the
 * IA-32 specific portions of the public kernel interface.
 *
 * This file is also included by assembly language files which must #define
 * _ASMLANGUAGE before including this header file.  Note that kernel
 * assembly source files obtains structure offset values via "absolute symbols"
 * in the offsets.o module.
 */

/* this file is only meant to be included by kernel_structs.h */

#ifndef _kernel_arch_data__h_
#define _kernel_arch_data__h_

#include <toolchain.h>
#include <linker/sections.h>
#include <asm_inline.h>
#include <exception.h>
#include <kernel_arch_thread.h>

#ifndef _ASMLANGUAGE
#include <kernel.h>
#include <nano_internal.h>
#include <zephyr/types.h>
#include <misc/dlist.h>
#endif


/* increase to 16 bytes (or more?) to support SSE/SSE2 instructions? */

#define STACK_ALIGN_SIZE 4

/* x86 Bitmask definitions for struct k_thread.thread_state */

/* executing context is interrupt handler */
#define _INT_ACTIVE (1 << 7)

/* executing context is exception handler */
#define _EXC_ACTIVE (1 << 6)

#define _INT_OR_EXC_MASK (_INT_ACTIVE | _EXC_ACTIVE)

/* end - states */

#if defined(CONFIG_FP_SHARING) && defined(CONFIG_SSE)
#define _FP_USER_MASK (K_FP_REGS | K_SSE_REGS)
#elif defined(CONFIG_FP_SHARING)
#define _FP_USER_MASK (K_FP_REGS)
#endif

/*
 * Exception/interrupt vector definitions: vectors 20 to 31 are reserved for
 * Intel; vectors 32 to 255 are user defined interrupt vectors.
 */

#define IV_DIVIDE_ERROR 0
#define IV_DEBUG 1
#define IV_NON_MASKABLE_INTERRUPT 2
#define IV_BREAKPOINT 3
#define IV_OVERFLOW 4
#define IV_BOUND_RANGE 5
#define IV_INVALID_OPCODE 6
#define IV_DEVICE_NOT_AVAILABLE 7
#define IV_DOUBLE_FAULT 8
#define IV_COPROC_SEGMENT_OVERRUN 9
#define IV_INVALID_TSS 10
#define IV_SEGMENT_NOT_PRESENT 11
#define IV_STACK_FAULT 12
#define IV_GENERAL_PROTECTION 13
#define IV_PAGE_FAULT 14
#define IV_RESERVED 15
#define IV_X87_FPU_FP_ERROR 16
#define IV_ALIGNMENT_CHECK 17
#define IV_MACHINE_CHECK 18
#define IV_SIMD_FP 19
#define IV_INTEL_RESERVED_END 31

/*
 * Model specific register (MSR) definitions.  Use the _MsrRead() and
 * _MsrWrite() primitives to read/write the MSRs.  Only the so-called
 * "Architectural MSRs" are listed, i.e. the subset of MSRs and associated
 * bit fields which will not change on future processor generations.
 */

#define IA32_P5_MC_ADDR_MSR 0x0000
#define IA32_P5_MC_TYPE_MSR 0x0001
#define IA32_MONITOR_FILTER_SIZE_MSR 0x0006
#define IA32_TIME_STAMP_COUNTER_MSR 0x0010
#define IA32_IA32_SOC_ID_MSR 0x0017
#define IA32_APIC_BASE_MSR 0x001b
#define IA32_FEATURE_CONTROL_MSR 0x003a
#define IA32_BIOS_SIGN_MSR 0x008b
#define IA32_SMM_MONITOR_CTL_MSR 0x009b
#define IA32_PMC0_MSR 0x00c1
#define IA32_PMC1_MSR 0x00c2
#define IA32_PMC2_MSR 0x00c3
#define IA32_PMC3_MSR 0x00c4
#define IA32_MPERF_MSR 0x00e7
#define IA32_APERF_MSR 0x00e8
#define IA32_MTRRCAP_MSR 0x00fe
#define IA32_SYSENTER_CS_MSR 0x0174
#define IA32_SYSENTER_ESP_MSR 0x0175
#define IA32_SYSENTER_EIP_MSR 0x0176
#define IA32_MCG_CAP_MSR 0x0179
#define IA32_MCG_STATUS_MSR 0x017a
#define IA32_MCG_CTL_MSR 0x017b
#define IA32_PERFEVTSEL0_MSR 0x0186
#define IA32_PERFEVTSEL1_MSR 0x0187
#define IA32_PERFEVTSEL2_MSR 0x0188
#define IA32_PERFEVTSEL3_MSR 0x0188
#define IA32_PERF_STATUS_MSR 0x0198
#define IA32_PERF_CTL_MSR 0x0199
#define IA32_CLOCK_MODULATION_MSR 0x019a
#define IA32_THERM_INTERRUPT_MSR 0x019b
#define IA32_THERM_STATUS_MSR 0x019c
#define IA32_MISC_ENABLE_MSR 0x01a0
#define IA32_ENERGY_PERF_BIAS_MSR 0x01b0
#define IA32_DEBUGCTL_MSR 0x01d9
#define IA32_SMRR_PHYSBASE_MSR 0x01f2
#define IA32_SMRR_PHYSMASK_MSR 0x01f3
#define IA32_SOC_DCA_CAP_MSR 0x01f8
#define IA32_CPU_DCA_CAP_MSR 0x01f9
#define IA32_DCA_0_CAP_MSR 0x01fa
#define IA32_MTRR_PHYSBASE0_MSR 0x0200
#define IA32_MTRR_PHYSMASK0_MSR 0x0201
#define IA32_MTRR_PHYSBASE1_MSR 0x0202
#define IA32_MTRR_PHYSMASK1_MSR 0x0203
#define IA32_MTRR_PHYSBASE2_MSR 0x0204
#define IA32_MTRR_PHYSMASK2_MSR 0x0205
#define IA32_MTRR_PHYSBASE3_MSR 0x0206
#define IA32_MTRR_PHYSMASK3_MSR 0x0207
#define IA32_MTRR_PHYSBASE4_MSR 0x0208
#define IA32_MTRR_PHYSMASK4_MSR 0x0209
#define IA32_MTRR_PHYSBASE5_MSR 0x020a
#define IA32_MTRR_PHYSMASK5_MSR 0x020b
#define IA32_MTRR_PHYSBASE6_MSR 0x020c
#define IA32_MTRR_PHYSMASK6_MSR 0x020d
#define IA32_MTRR_PHYSBASE7_MSR 0x020e
#define IA32_MTRR_PHYSMASK7_MSR 0x020f
#define IA32_MTRR_FIX64K_00000_MSR 0x0250
#define IA32_MTRR_FIX16K_80000_MSR 0x0258
#define IA32_MTRR_FIX16K_A0000_MSR 0x0259
#define IA32_MTRR_FIX4K_C0000_MSR 0x0268
#define IA32_MTRR_FIX4K_C8000_MSR 0x0269
#define IA32_MTRR_FIX4K_D0000_MSR 0x026a
#define IA32_MTRR_FIX4K_D8000_MSR 0x026b
#define IA32_MTRR_FIX4K_E0000_MSR 0x026c
#define IA32_MTRR_FIX4K_E8000_MSR 0x026d
#define IA32_MTRR_FIX4K_F0000_MSR 0x026e
#define IA32_MTRR_FIX4K_F8000_MSR 0x026f
#define IA32_PAT_MSR 0x0277
#define IA32_MC0_CTL2_MSR 0x0280
#define IA32_MC1_CTL2_MSR 0x0281
#define IA32_MC2_CTL2_MSR 0x0282
#define IA32_MC3_CTL2_MSR 0x0283
#define IA32_MC4_CTL2_MSR 0x0284
#define IA32_MC5_CTL2_MSR 0x0285
#define IA32_MC6_CTL2_MSR 0x0286
#define IA32_MC7_CTL2_MSR 0x0287
#define IA32_MC8_CTL2_MSR 0x0288
#define IA32_MC9_CTL2_MSR 0x0289
#define IA32_MC10_CTL2_MSR 0x028a
#define IA32_MC11_CTL2_MSR 0x028b
#define IA32_MC12_CTL2_MSR 0x028c
#define IA32_MC13_CTL2_MSR 0x028d
#define IA32_MC14_CTL2_MSR 0x028e
#define IA32_MC15_CTL2_MSR 0x028f
#define IA32_MC16_CTL2_MSR 0x0290
#define IA32_MC17_CTL2_MSR 0x0291
#define IA32_MC18_CTL2_MSR 0x0292
#define IA32_MC19_CTL2_MSR 0x0293
#define IA32_MC20_CTL2_MSR 0x0294
#define IA32_MC21_CTL2_MSR 0x0295
#define IA32_MTRR_DEF_TYPE_MSR 0x02ff
#define IA32_FIXED_CTR0_MSR 0x0309
#define IA32_FIXED_CTR1_MSR 0x030a
#define IA32_FIXED_CTR2_MSR 0x030b
#define IA32_PERF_CAPABILITIES_MSR 0x0345
#define IA32_FIXED_CTR_CTL_MSR 0x038d
#define IA32_PERF_GLOBAL_STATUS_MSR 0x038e
#define IA32_PERF_GLOBAL_CTRL_MSR 0x038f
#define IA32_PERF_GLOBAL_OVF_CTRL_MSR 0x0390
#define IA32_PEBS_ENABLE_MSR 0x03f1
#define IA32_MC0_CTL_MSR 0x0400
#define IA32_MC0_STATUS 0x0401
#define IA32_MC0_ADDR_MSR 0x0402
#define IA32_MC0_MISC_MSR 0x0403
#define IA32_MC1_CTL_MSR 0x0404
#define IA32_MC1_STATUS_MSR 0x0405
#define IA32_MC1_ADDR_MSR 0x0406
#define IA32_MC1_MISC_MSR 0x0407
#define IA32_MC2_CTL_MSR 0x0408
#define IA32_MC2_STATUS_MSR 0x0409
#define IA32_MC2_ADDR_MSR 0x040a
#define IA32_MC2_MISC_MSR 0x040b
#define IA32_MC3_CTL_MSR 0x040c
#define IA32_MC3_STATUS_MSR 0x040d
#define IA32_MC3_ADDR_MSR 0x040e
#define IA32_MC3_MISC_MSR 0x040f
#define IA32_MC4_CTL_MSR 0x0410
#define IA32_MC4_STATUS_MSR 0x0411
#define IA32_MC4_ADDR_MSR 0x0412
#define IA32_MC4_MISC_MSR 0x0413
#define IA32_MC5_CTL_MSR 0x0414
#define IA32_MC5_STATUS_MSR 0x0415
#define IA32_MC5_ADDR_MSR 0x0416
#define IA32_MC5_MISC_MSR 0x0417
#define IA32_MC6_CTL_MSR 0x0418
#define IA32_MC6_STATUS_MSR 0x0419
#define IA32_MC6_ADDR_MSR 0x041a
#define IA32_MC6_MISC_MSR 0x041b
#define IA32_MC7_CTL_MSR 0x041c
#define IA32_MC7_STATUS_MSR 0x041d
#define IA32_MC7_ADDR_MSR 0x041e
#define IA32_MC7_MISC_MSR 0x041f
#define IA32_MC8_CTL_MSR 0x0420
#define IA32_MC8_STATUS_MSR 0x0421
#define IA32_MC8_ADDR_MSR 0x0422
#define IA32_MC8_MISC_MSR 0x0423
#define IA32_MC9_CTL_MSR 0x0424
#define IA32_MC9_STATUS_MSR 0x0425
#define IA32_MC9_ADDR_MSR 0x0426
#define IA32_MC9_MISC_MSR 0x0427
#define IA32_MC9_CTL_MSR 0x0424
#define IA32_MC9_STATUS_MSR 0x0425
#define IA32_MC9_ADDR_MSR 0x0426
#define IA32_MC9_MISC_MSR 0x0427
#define IA32_MC9_CTL_MSR 0x0424
#define IA32_MC9_STATUS_MSR 0x0425
#define IA32_MC9_ADDR_MSR 0x0426
#define IA32_MC9_MISC_MSR 0x0427
#define IA32_MC9_CTL_MSR 0x0424
#define IA32_MC9_STATUS_MSR 0x0425
#define IA32_MC9_ADDR_MSR 0x0426
#define IA32_MC9_MISC_MSR 0x0427
#define IA32_MC10_CTL_MSR 0x0428
#define IA32_MC10_STATUS_MSR 0x0429
#define IA32_MC10_ADDR_MSR 0x042a
#define IA32_MC10_MISC_MSR 0x042b
#define IA32_MC11_CTL_MSR 0x042c
#define IA32_MC11_STATUS_MSR 0x042d
#define IA32_MC11_ADDR_MSR 0x042e
#define IA32_MC11_MISC_MSR 0x042f
#define IA32_MC12_CTL_MSR 0x0430
#define IA32_MC12_STATUS_MSR 0x0431
#define IA32_MC12_ADDR_MSR 0x0432
#define IA32_MC12_MISC_MSR 0x0433
#define IA32_MC13_CTL_MSR 0x0434
#define IA32_MC13_STATUS_MSR 0x0435
#define IA32_MC13_ADDR_MSR 0x0436
#define IA32_MC13_MISC_MSR 0x0437
#define IA32_MC14_CTL_MSR 0x0438
#define IA32_MC14_STATUS_MSR 0x0439
#define IA32_MC14_ADDR_MSR 0x043a
#define IA32_MC14_MISC_MSR 0x043b
#define IA32_MC15_CTL_MSR 0x043c
#define IA32_MC15_STATUS_MSR 0x043d
#define IA32_MC15_ADDR_MSR 0x043e
#define IA32_MC15_MISC_MSR 0x043f
#define IA32_MC16_CTL_MSR 0x0440
#define IA32_MC16_STATUS_MSR 0x0441
#define IA32_MC16_ADDR_MSR 0x0442
#define IA32_MC16_MISC_MSR 0x0443
#define IA32_MC17_CTL_MSR 0x0444
#define IA32_MC17_STATUS_MSR 0x0445
#define IA32_MC17_ADDR_MSR 0x0446
#define IA32_MC17_MISC_MSR 0x0447
#define IA32_MC18_CTL_MSR 0x0448
#define IA32_MC18_STATUS_MSR 0x0449
#define IA32_MC18_ADDR_MSR 0x044a
#define IA32_MC18_MISC_MSR 0x044b
#define IA32_MC19_CTL_MSR 0x044c
#define IA32_MC19_STATUS_MSR 0x044d
#define IA32_MC19_ADDR_MSR 0x044e
#define IA32_MC19_MISC_MSR 0x044f
#define IA32_MC20_CTL_MSR 0x0450
#define IA32_MC20_STATUS_MSR 0x0451
#define IA32_MC20_ADDR_MSR 0x0452
#define IA32_MC20_MISC_MSR 0x0453
#define IA32_MC21_CTL_MSR 0x0454
#define IA32_MC21_STATUS_MSR 0x0455
#define IA32_MC21_ADDR_MSR 0x0456
#define IA32_MC21_MISC_MSR 0x0457
#define IA32_VMX_BASIC_MSR 0x0480
#define IA32_VMX_PINBASED_CTLS_MSR 0x0481
#define IA32_VMX_PROCBASED_CTLS_MSR 0x0482
#define IA32_VMX_EXIT_CTLS_MSR 0x0483
#define IA32_VMX_ENTRY_CTLS_MSR 0x0484
#define IA32_VMX_MISC_MSR 0x0485
#define IA32_VMX_CRO_FIXED0_MSR 0x0486
#define IA32_VMX_CRO_FIXED1_MSR 0x0487
#define IA32_VMX_CR4_FIXED0_MSR 0x0488
#define IA32_VMX_CR4_FIXED1_MSR 0x0489
#define IA32_VMX_VMCS_ENUM_MSR 0x048a
#define IA32_VMX_PROCBASED_CTLS2_MSR 0x048b
#define IA32_VMX_EPT_VPID_CAP_MSR 0x048c
#define IA32_VMX_TRUE_PINBASED_CTLS_MSR 0x048d
#define IA32_VMX_TRUE_PROCBASED_CTLS_MSR 0x048e
#define IA32_VMX_TRUE_EXIT_CTLS_MSR 0x048f
#define IA32_VMX_TRUE_ENTRY_CTLS_MSR 0x0490
#define IA32_DS_AREA_MSR 0x0600
#define IA32_EXT_XAPICID_MSR 0x0802
#define IA32_EXT_XAPIC_VERSION_MSR 0x0803
#define A32_EXT_XAPIC_TPR_MSR 0x0808
#define IA32_EXT_XAPIC_PPR_MSR 0x080a
#define IA32_EXT_XAPIC_EOI_MSR 0x080d
#define IA32_EXT_XAPIC_LDR_MSR 0x080c
#define IA32_EXT_XAPIC_SIVR_MSR 0x080f
#define IA32_EXT_XAPIC_ISR0_MSR 0x0810
#define IA32_EXT_XAPIC_ISR1_MSR 0x0811
#define A32_EXT_XAPIC_ISR2_MSR 0x0812
#define IA32_EXT_XAPIC_ISR3_MSR 0x0813
#define IA32_EXT_XAPIC_ISR4_MSR 0x0814
#define IA32_EXT_XAPIC_ISR5_MSR 0x0815
#define IA32_EXT_XAPIC_ISR6_MSR 0x0816
#define IA32_EXT_XAPIC_ISR7_MSR 0x0817
#define IA32_EXT_XAPIC_TMR0_MSR 0x0818
#define IA32_EXT_XAPIC_TMR1_MSR 0x0819
#define IA32_EXT_XAPIC_TMR2_MSR 0x081a
#define IA32_EXT_XAPIC_TMR3_MSR 0x081b
#define IA32_EXT_XAPIC_TMR4_MSR 0x081c
#define IA32_EXT_XAPIC_TMR5_MSR 0x081d
#define IA32_EXT_XAPIC_TMR6_MSR 0x081e
#define IA32_EXT_XAPIC_TMR7_MSR 0x081f
#define IA32_EXT_XAPIC_IRR0_MSR 0x0820
#define IA32_EXT_XAPIC_IRR1_MSR 0x0821
#define IA32_EXT_XAPIC_IRR2_MSR 0x0822
#define IA32_EXT_XAPIC_IRR3_MSR 0x0823
#define IA32_EXT_XAPIC_IRR4_MSR 0x0824
#define IA32_EXT_XAPIC_IRR5_MSR 0x0825
#define IA32_EXT_XAPIC_IRR6_MSR 0x0826
#define IA32_EXT_XAPIC_IRR7_MSR 0x0827
#define IA32_EXT_XAPIC_ESR_MSR 0x0828
#define IA32_EXT_XAPIC_LVT_CMCI_MSR 0x082f
#define IA32_EXT_XAPIC_ICR_MSR 0x0830
#define IA32_EXT_XAPIC_LVT_TIMER_MSR 0x0832
#define IA32_EXT_XAPIC_LVT_THERMAL_MSR 0x0833
#define IA32_EXT_XAPIC_LVT_PMI_MSR 0x0834
#define IA32_EXT_XAPIC_LVT_LINT0_MSR 0x0835
#define IA32_EXT_XAPIC_LVT_LINT1_MSR 0x0836
#define IA32_EXT_XAPIC_LVT_ERROR_MSR 0x0837
#define IA32_EXT_XAPIC_INIT_COUNT_MSR 0x0838
#define IA32_EXT_XAPIC_CUR_COUNT_MSR 0x0839
#define IA32_EXT_XAPIC_DIV_CONF_MSR 0x083e
#define IA32_EXT_XAPIC_SELF_IPI_MSR 0x083f
#define IA32_EFER_MSR 0xc0000080
#define IA32_STAR_MSR 0xc0000081
#define IA32_LSTAR_MSR 0xc0000082
#define IA32_FMASK_MSR 0xc0000084
#define IA32_FS_BASE_MSR 0xc0000100
#define IA32_GS_BASE_MSR 0xc0000101
#define IA32_KERNEL_GS_BASE_MSR 0xc0000102
#define IA32_TSC_AUX_MSR 0xc0000103

/*
 * EFLAGS value to utilize for the initial context:
 *
 *   IF (Interrupt Enable Flag) = 1
 *   IOPL bits			= 0
 *   All other "flags"          = Don't change state
 */

#define EFLAGS_INITIAL 0x00000200
#define EFLAGS_MASK 0x00003200

/* Enable paging and write protection */
#define CR0_PAGING_ENABLE 0x80010000
/* Clear the 5th bit in  CR4 */
#define CR4_PAE_DISABLE 0xFFFFFFEF
/* Set the 5th bit in  CR4 */
#define CR4_PAE_ENABLE 0x00000020

#ifndef _ASMLANGUAGE

#include <misc/util.h>

#ifdef DEBUG
#include <misc/printk.h>
#define PRINTK(...) printk(__VA_ARGS__)
#else
#define PRINTK(...)
#endif /* DEBUG */

#ifdef __cplusplus
extern "C" {
#endif


struct _kernel_arch {
#if defined(CONFIG_DEBUG_INFO)
	NANO_ISF *isf;    /* ptr to interrupt stack frame */
#endif
};

typedef struct _kernel_arch _kernel_arch_t;

#ifdef __cplusplus
}
#endif

#endif /* _ASMLANGUAGE */

#endif /* _kernel_arch_data__h_ */