277 lines
9.9 KiB
C
277 lines
9.9 KiB
C
/*
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*
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* Copyright (C) 2001 MCST
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*
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* Defenition of traps handling routines.
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*/
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#ifndef _E2K_TRAP_DEF_H
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#define _E2K_TRAP_DEF_H
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#include <linux/types.h>
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#define GET_NR_TIRS(tir_hi) ((tir_hi >> 56) & 0xff)
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#define GET_CLEAR_TIR_HI(tir_no) (((tir_no) & 0xffUL) << 56)
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#define GET_CLEAR_TIR_LO(tir_no) 0UL
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/* get aa field of tir_hi register */
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#define GET_AA_TIRS(tir_hi) ((tir_hi >> 52) & 0x0f)
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#define SET_AA_TIRS(tir_hi, aa_field) ((tir_hi) | (((aa_field) & 0x0f) << 52))
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/* get IP field of tir_lo register */
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#define GET_IP_TIRS(tir_lo) ((tir_lo) & E2K_VA_MASK)
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/* get IP field of cr0_hi register */
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#define GET_IP_CR0_HI(cr0_hi) ((cr0_hi).CR0_hi_ip << E2K_ALIGN_INS)
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/*
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* Trap Info Register: the numbers of exceptions
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*/
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#define exc_illegal_opcode_num 0
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#define exc_priv_action_num 1
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#define exc_fp_disabled_num 2
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#define exc_fp_stack_u_num 3
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#define exc_d_interrupt_num 4
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#define exc_diag_ct_cond_num 5
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#define exc_diag_instr_addr_num 6
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#define exc_illegal_instr_addr_num 7
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#define exc_instr_debug_num 8
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#define exc_window_bounds_num 9
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#define exc_user_stack_bounds_num 10
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#define exc_proc_stack_bounds_num 11
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#define exc_chain_stack_bounds_num 12
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#define exc_fp_stack_o_num 13
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#define exc_diag_cond_num 14
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#define exc_diag_operand_num 15
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#define exc_illegal_operand_num 16
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#define exc_array_bounds_num 17
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#define exc_access_rights_num 18
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#define exc_addr_not_aligned_num 19
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#define exc_instr_page_miss_num 20
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#define exc_instr_page_prot_num 21
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#define exc_ainstr_page_miss_num 22
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#define exc_ainstr_page_prot_num 23
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#define exc_last_wish_num 24
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#define exc_base_not_aligned_num 25
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#define exc_software_trap_num 26
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#define exc_data_debug_num 28
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#define exc_data_page_num 29
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#define core_dump_num 30
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#define exc_recovery_point_num 31
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#define exc_interrupt_num 32
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#define exc_nm_interrupt_num 33
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#define exc_div_num 34
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#define exc_fp_num 35
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#define exc_mem_lock_num 36
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#define exc_mem_lock_as_num 37
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#define exc_data_error_num 38
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#define exc_mem_error_out_cpu_num 38
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#define exc_mem_error_MAU_num 39
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#define exc_mem_error_L2_num 40
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#define exc_mem_error_L1_35_num 41
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#define exc_mem_error_L1_02_num 42
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#define exc_mem_error_ICACHE_num 43
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#define exc_max_num 43
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#define exc_mova_ch_0_num 52 /* [52] TIR.aa.[0] */
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#define exc_mova_ch_1_num 53 /* [53] TIR.aa.[1] */
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#define exc_mova_ch_2_num 54 /* [54] TIR.aa.[2] */
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#define exc_mova_ch_3_num 55 /* [55] TIR.aa.[3] */
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#define masked_hw_stack_bounds_num 60 /* hardware stacks bounds */
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/* trap is occured but masked */
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/*
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* Trap Info Register: the bit mask of exceptions
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*/
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#define exc_illegal_opcode_mask (1UL << exc_illegal_opcode_num)
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#define exc_priv_action_mask (1UL << exc_priv_action_num)
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#define exc_fp_disabled_mask (1UL << exc_fp_disabled_num)
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#define exc_fp_stack_u_mask (1UL << exc_fp_stack_u_num)
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#define exc_d_interrupt_mask (1UL << exc_d_interrupt_num)
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#define exc_diag_ct_cond_mask (1UL << exc_diag_ct_cond_num)
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#define exc_diag_instr_addr_mask (1UL << exc_diag_instr_addr_num)
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#define exc_illegal_instr_addr_mask (1UL << exc_illegal_instr_addr_num)
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#define exc_instr_debug_mask (1UL << exc_instr_debug_num)
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#define exc_window_bounds_mask (1UL << exc_window_bounds_num)
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#define exc_user_stack_bounds_mask (1UL << exc_user_stack_bounds_num)
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#define exc_proc_stack_bounds_mask (1UL << exc_proc_stack_bounds_num)
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#define exc_chain_stack_bounds_mask (1UL << exc_chain_stack_bounds_num)
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#define exc_fp_stack_o_mask (1UL << exc_fp_stack_o_num)
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#define exc_diag_cond_mask (1UL << exc_diag_cond_num)
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#define exc_diag_operand_mask (1UL << exc_diag_operand_num)
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#define exc_illegal_operand_mask (1UL << exc_illegal_operand_num)
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#define exc_array_bounds_mask (1UL << exc_array_bounds_num)
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#define exc_access_rights_mask (1UL << exc_access_rights_num)
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#define exc_addr_not_aligned_mask (1UL << exc_addr_not_aligned_num)
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#define exc_instr_page_miss_mask (1UL << exc_instr_page_miss_num)
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#define exc_instr_page_prot_mask (1UL << exc_instr_page_prot_num)
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#define exc_ainstr_page_miss_mask (1UL << exc_ainstr_page_miss_num)
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#define exc_ainstr_page_prot_mask (1UL << exc_ainstr_page_prot_num)
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#define exc_last_wish_mask (1UL << exc_last_wish_num)
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#define exc_base_not_aligned_mask (1UL << exc_base_not_aligned_num)
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#define exc_software_trap_mask (1UL << exc_software_trap_num)
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#define exc_data_debug_mask (1UL << exc_data_debug_num)
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#define exc_data_page_mask (1UL << exc_data_page_num)
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#define exc_recovery_point_mask (1UL << exc_recovery_point_num)
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#define exc_interrupt_mask (1UL << exc_interrupt_num)
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#define exc_nm_interrupt_mask (1UL << exc_nm_interrupt_num)
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#define exc_div_mask (1UL << exc_div_num)
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#define exc_fp_mask (1UL << exc_fp_num)
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#define exc_mem_lock_mask (1UL << exc_mem_lock_num)
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#define exc_mem_lock_as_mask (1UL << exc_mem_lock_as_num)
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#define exc_data_error_mask (1UL << exc_data_error_num)
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#define exc_mem_error_out_cpu_mask (1UL << exc_mem_error_out_cpu_num)
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#define exc_mem_error_MAU_mask (1UL << exc_mem_error_MAU_num)
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#define exc_mem_error_L2_mask (1UL << exc_mem_error_L2_num)
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#define exc_mem_error_L1_35_mask (1UL << exc_mem_error_L1_35_num)
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#define exc_mem_error_L1_02_mask (1UL << exc_mem_error_L1_02_num)
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#define exc_mem_error_ICACHE_mask (1UL << exc_mem_error_ICACHE_num)
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#define exc_mem_error_mask (exc_mem_error_out_cpu_mask | \
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exc_mem_error_MAU_mask | \
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exc_mem_error_L2_mask | \
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exc_mem_error_L1_35_mask | \
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exc_mem_error_L1_02_mask | \
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exc_mem_error_ICACHE_mask)
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#define exc_mova_ch_0_mask (1UL << exc_mova_ch_0_num)
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#define exc_mova_ch_1_mask (1UL << exc_mova_ch_1_num)
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#define exc_mova_ch_2_mask (1UL << exc_mova_ch_2_num)
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#define exc_mova_ch_3_mask (1UL << exc_mova_ch_3_num)
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#define exc_all_mask ((1UL << (exc_max_num + 1)) - 1UL)
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#define aau_exc_mask (exc_mova_ch_0_mask | \
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exc_mova_ch_1_mask | \
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exc_mova_ch_2_mask | \
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exc_mova_ch_3_mask)
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#define core_dump_mask (1UL << core_dump_num)
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#define masked_hw_stack_bounds_mask (1UL << masked_hw_stack_bounds_num)
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#define sync_exc_mask (exc_illegal_opcode_mask | \
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exc_priv_action_mask | \
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exc_fp_disabled_mask | \
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exc_fp_stack_u_mask | \
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exc_diag_ct_cond_mask | \
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exc_diag_instr_addr_mask | \
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exc_illegal_instr_addr_mask | \
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exc_window_bounds_mask | \
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exc_user_stack_bounds_mask | \
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exc_fp_stack_o_mask | \
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exc_diag_cond_mask | \
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exc_diag_operand_mask | \
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exc_illegal_operand_mask | \
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exc_array_bounds_mask | \
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exc_access_rights_mask | \
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exc_addr_not_aligned_mask | \
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exc_instr_page_miss_mask | \
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exc_instr_page_prot_mask | \
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exc_base_not_aligned_mask | \
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exc_software_trap_mask)
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#define async_exc_mask (exc_proc_stack_bounds_mask | \
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exc_chain_stack_bounds_mask | \
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exc_instr_debug_mask | \
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exc_ainstr_page_miss_mask | \
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exc_ainstr_page_prot_mask | \
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exc_interrupt_mask | \
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exc_nm_interrupt_mask | \
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exc_mem_lock_as_mask | \
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exc_data_error_mask | \
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exc_mem_error_mask)
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#define defer_exc_mask (exc_data_page_mask | \
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exc_mem_lock_mask | \
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exc_d_interrupt_mask | \
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exc_last_wish_mask)
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/* Mask of non-maskable interrupts. "exc_data_debug" and "exc_instr_debug"
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* actually can be either maskable or non-maskable depending on the watched
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* event, but we assume the worst case (non-maskable). */
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#define non_maskable_exc_mask (exc_nm_interrupt_mask | \
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exc_data_debug_mask | \
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exc_instr_debug_mask | \
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exc_mem_lock_as_mask)
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#define have_tc_exc_mask (exc_data_page_mask | \
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exc_mem_lock_mask)
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#define fp_es (1UL << 7) /* - error summary status; es set if anyone */
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/* of unmasked exception flags is set; */
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#define fp_pe (1UL << 5) /* - precision exception flag; */
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#define fp_ue (1UL << 4) /* - underflow exception flag; */
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#define fp_oe (1UL << 3) /* - overflow exception flag; */
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#define fp_ze (1UL << 2) /* - divide by zero exception flag; */
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#define fp_de (1UL << 1) /* - denormalized operand exception flag; */
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#define fp_ie (1UL << 0) /* - invalid operation exception flag; */
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#ifndef __ASSEMBLY__
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/*
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* do_page_fault() return values
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*/
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enum pf_ret {
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/* Could not handle fault, must return to handle signals */
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PFR_SIGPENDING = 1,
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/* The page fault was handled */
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PFR_SUCCESS,
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/* In some cases kernel addresses can be in Trap Cellar if VLIW command
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* consisted of a several load/store operations and one of them caused
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* page fault trap */
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PFR_KERNEL_ADDRESS,
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/* Do not handle speculative access */
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PFR_IGNORE,
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/* Controlled access from kernel to user memory */
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PFR_CONTROLLED_ACCESS,
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/* needs to change SAP to AP for multi_threading of protected mode */
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PFR_AP_THREAD_READ,
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/* trap on paravirtualized guest kernel and is handled by host: */
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/* such result means the trap was handled by hypervisor and it need */
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/* recover faulted operation */
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PFR_KVM_KERNEL_ADDRESS,
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};
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#endif /* ! __ASSEMBLY__ */
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/*
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* Common system calls (trap table entries numbers)
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*/
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#define LINUX_SYSCALL32_TRAPNUM 1 /* Use E2K trap entry #1 */
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#define LINUX_SYSCALL64_TRAPNUM 3 /* Use E2K trap entry #3 */
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#define LINUX_SYSCALL_TRAPNUM_OLD 4 /* Deprecated */
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#define LINUX_FAST_SYSCALL32_TRAPNUM 5
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#define LINUX_FAST_SYSCALL64_TRAPNUM 6
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#define LINUX_FAST_SYSCALL128_TRAPNUM 7
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/*
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* Hypercalls
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*/
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#define LINUX_HCALL_GENERIC_TRAPNUM 0 /* guest hardware hypercalls */
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#define LINUX_HCALL_LIGHT_TRAPNUM 1 /* guest light hardware hypercalls */
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/*
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* Definition of ttable entry number used for protected system calls.
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* This is under agreement with protected mode compiler/plib team.
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*/
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#define PMODE_SYSCALL_TRAPNUM 8
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#define PMODE_NEW_SYSCALL_TRAPNUM 10
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#define GENERIC_HYPERCALL_TRAPNUM 16 /* guest software hypercalls */
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#define LIGHT_HYPERCALL_TRAPNUM 17 /* guest light software hypercalls */
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#define HYPERCALLS_TRAPS_MASK ((1U << GENERIC_HYPERCALL_TRAPNUM) | \
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(1U << LIGHT_HYPERCALL_TRAPNUM))
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/*
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* One trap table entry byte size
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*/
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#define LINUX_SYSCALL_ENTRY_SIZE 0x800 /* one entry max size is */
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/* PAGE_SIZE / 2 */
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#endif /* _E2K_TRAP_DEF_H */
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