| /* |
| * Copyright (c) 2019-2020 Cobham Gaisler AB |
| * |
| * SPDX-License-Identifier: Apache-2.0 |
| */ |
| |
| /* |
| * This file contains a full SPARC V8 trap table. The processor redirects |
| * exection to the trap table on trap events. Each trap table entrys is four |
| * instructions. |
| */ |
| |
| #include <zephyr/toolchain.h> |
| #include <zephyr/linker/sections.h> |
| |
| #define BAD_TRAP \ |
| rd %psr, %l0; \ |
| sethi %hi(__sparc_trap_fault), %l4; \ |
| jmp %l4+%lo(__sparc_trap_fault); \ |
| rd %tbr, %l6; |
| |
| #define INTERRUPT_TRAP(level) \ |
| rd %psr, %l0; \ |
| sethi %hi(INT_HANDLER), %l4; \ |
| jmp %l4+%lo(INT_HANDLER); \ |
| mov (0xf & level), %l3; |
| |
| #define TRAP(handler) \ |
| rd %psr, %l0; \ |
| sethi %hi(handler), %l4; \ |
| jmp %l4+%lo(handler); \ |
| rd %tbr, %l6; |
| |
| #define RESET_TRAP(handler) \ |
| mov %g0, %g4; \ |
| sethi %hi(handler), %g4; \ |
| jmp %g4+%lo(handler); \ |
| nop; |
| |
| /* |
| * Generate the "trap in trap" condition which causes the processor to halt and |
| * enter error mode. Typically used to stop a simulator (QEMU, TSIM) or leave |
| * control to a hardware debug monitor (LEON DSU via GRMON). |
| */ |
| #define TRAP_IN_TRAP \ |
| ta 0x00; \ |
| nop; \ |
| nop; \ |
| nop; |
| |
| #define SOFT_TRAP BAD_TRAP |
| |
| #define WOF_TRAP TRAP(__sparc_trap_window_overflow) |
| #define WUF_TRAP TRAP(__sparc_trap_window_underflow) |
| #define FLW_TRAP TRAP(__sparc_trap_flush_windows) |
| #define INT_HANDLER __sparc_trap_interrupt |
| |
| #ifdef CONFIG_IRQ_OFFLOAD |
| #define IRQ_OFFLOAD_TRAP TRAP(__sparc_trap_irq_offload) |
| #else |
| #define IRQ_OFFLOAD_TRAP BAD_TRAP |
| #endif |
| |
| GTEXT(__sparc_trap_table) |
| GTEXT(__start) |
| |
| SECTION_SUBSEC_FUNC(TEXT, traptable, __sparc_trap_table) |
| __start: |
| /* |
| * Values in the range 0 to 0x5F that are not assigned in SPARC V8 |
| * specification Table 7-1 are reserved for future versions of the |
| * architecture. |
| */ |
| RESET_TRAP(__sparc_trap_reset); ! 00 reset |
| BAD_TRAP; ! 01 instruction_access_exception |
| BAD_TRAP; ! 02 illegal_instruction |
| BAD_TRAP; ! 03 priveleged_instruction |
| BAD_TRAP; ! 04 fp_disabled |
| WOF_TRAP; ! 05 window_overflow |
| WUF_TRAP; ! 06 window_underflow |
| BAD_TRAP; ! 07 mem_address_not_aligned |
| BAD_TRAP; ! 08 fp_exception |
| BAD_TRAP; ! 09 data_access_exception |
| BAD_TRAP; ! 0A tag_overflow |
| BAD_TRAP; ! 0B watchpoint_detected |
| BAD_TRAP; ! 0C reserved |
| BAD_TRAP; ! 0D reserved |
| BAD_TRAP; ! 0E reserved |
| BAD_TRAP; ! 0F reserved |
| BAD_TRAP; ! 10 reserved |
| |
| /* Interrupt traps */ |
| INTERRUPT_TRAP(1); ! 11 interrupt_level_1 |
| INTERRUPT_TRAP(2); ! 12 interrupt_level_2 |
| INTERRUPT_TRAP(3); ! 13 interrupt_level_3 |
| INTERRUPT_TRAP(4); ! 14 interrupt_level_4 |
| INTERRUPT_TRAP(5); ! 15 interrupt_level_5 |
| INTERRUPT_TRAP(6); ! 16 interrupt_level_6 |
| INTERRUPT_TRAP(7); ! 17 interrupt_level_7 |
| INTERRUPT_TRAP(8); ! 18 interrupt_level_8 |
| INTERRUPT_TRAP(9); ! 19 interrupt_level_9 |
| INTERRUPT_TRAP(10); ! 1A interrupt_level_1 |
| INTERRUPT_TRAP(11); ! 1B interrupt_level_11 |
| INTERRUPT_TRAP(12); ! 1C interrupt_level_12 |
| INTERRUPT_TRAP(13); ! 1D interrupt_level_13 |
| INTERRUPT_TRAP(14); ! 1E interrupt_level_14 |
| INTERRUPT_TRAP(15); ! 1F interrupt_level_15 |
| BAD_TRAP; ! 20 r_register_access_error |
| BAD_TRAP; ! 21 instruction_access_error |
| BAD_TRAP; ! 22 reserved |
| BAD_TRAP; ! 23 reserved |
| BAD_TRAP; ! 24 cp_disabled |
| BAD_TRAP; ! 25 unimplemented_FLUSH |
| BAD_TRAP; ! 26 reserved |
| BAD_TRAP; ! 27 reserved |
| BAD_TRAP; ! 28 cp_exception |
| BAD_TRAP; ! 29 data_access_error |
| BAD_TRAP; ! 2A division_by_zero |
| BAD_TRAP; ! 2B data_store_error |
| BAD_TRAP; ! 2C data_access_MMU_miss |
| BAD_TRAP; ! 2D reserved |
| BAD_TRAP; ! 2E reserved |
| BAD_TRAP; ! 2F reserved |
| BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 30 - 33 reserved |
| BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 34 - 37 reserved |
| BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 38 - 3B reserved |
| BAD_TRAP; ! 3C instruction_access_MMU_miss |
| BAD_TRAP; ! 3D reserved |
| BAD_TRAP; ! 3E reserved |
| BAD_TRAP; ! 3F reserved |
| BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 40 - 43 undefined |
| BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 44 - 47 undefined |
| BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 48 - 4B undefined |
| BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 4C - 4F undefined |
| BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 50 - 53 undefined |
| BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 54 - 57 undefined |
| BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 58 - 5B undefined |
| BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 5C - 5F undefined |
| |
| /* |
| * tt values 0x60 to 0x7F are reserved for implementation-dependent |
| * exceptions. |
| */ |
| BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 60 - 63 undefined |
| BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 64 - 67 undefined |
| BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 68 - 6B undefined |
| BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 6C - 6F undefined |
| BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 70 - 73 undefined |
| BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 74 - 77 undefined |
| BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 78 - 7B undefined |
| BAD_TRAP; BAD_TRAP; BAD_TRAP; BAD_TRAP; ! 7C - 7F undefined |
| |
| /* trap_instruction 0x80 - 0xFF */ |
| /* NOTE: "ta 5" can be generated by compiler. */ |
| TRAP_IN_TRAP; ! 0 System calls |
| SOFT_TRAP; ! 1 Breakpoints |
| SOFT_TRAP; ! 2 Division by zero |
| FLW_TRAP; ! 3 Flush windows |
| SOFT_TRAP; ! 4 Clean windows |
| SOFT_TRAP; ! 5 Range checking |
| SOFT_TRAP; ! 6 Fix alignment |
| SOFT_TRAP; ! 7 Integer overflow |
| SOFT_TRAP ! 8 System calls |
| TRAP(__sparc_trap_sw_set_pil); ! 9 Reserved for the os |
| SOFT_TRAP; ! 10 Reserved for the os |
| SOFT_TRAP; ! 11 Reserved for the os |
| /* See SPARC-ABI for purpose of the following software traps */ |
| SOFT_TRAP; ! 12 |
| IRQ_OFFLOAD_TRAP; ! 13 |
| SOFT_TRAP; ! 14 |
| TRAP(__sparc_trap_except_reason); ! 15 |
| SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! 90 - 93 |
| SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! 94 - 97 |
| SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! 98 - 9B |
| SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! 9C - 9F |
| SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! A0 - A3 |
| SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! A4 - A7 |
| SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! A8 - AB |
| SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! AC - AF |
| SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! B0 - B3 |
| SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! B4 - B7 |
| SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! B8 - BB |
| SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! BC - BF |
| SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! C0 - C3 |
| SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! C4 - C7 |
| SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! C8 - CB |
| SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! CC - CF |
| SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! D0 - D3 |
| SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! D4 - D7 |
| SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! D8 - DB |
| SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! DC - DF |
| SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! E0 - E3 |
| SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! E4 - E7 |
| SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! E8 - EB |
| SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! EC - EF |
| SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! F0 - F3 |
| SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! F4 - F7 |
| SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! F8 - FB |
| SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; SOFT_TRAP; ! FC - FF |
