| /branches/arm/kernel/arch/arm32/include/exception.h |
|---|
| 1,6 → 1,5 |
| /* |
| * Copyright (c) 2007 Michal Kebrt |
| * Copyright (c) 2007 Petr Stepan |
| * Copyright (c) 2007 Michal Kebrt, Petr Stepan |
| * |
| * All rights reserved. |
| * |
| 49,43 → 48,43 |
| #endif |
| /* Exception Vectors */ |
| #define EXC_RESET_VEC (EXC_BASE_ADDRESS + 0x0) |
| #define EXC_UNDEF_INSTR_VEC (EXC_BASE_ADDRESS + 0x4) |
| #define EXC_SWI_VEC (EXC_BASE_ADDRESS + 0x8) |
| #define EXC_PREFETCH_ABORT_VEC (EXC_BASE_ADDRESS + 0xc) |
| #define EXC_DATA_ABORT_VEC (EXC_BASE_ADDRESS + 0x10) |
| #define EXC_IRQ_VEC (EXC_BASE_ADDRESS + 0x18) |
| #define EXC_FIQ_VEC (EXC_BASE_ADDRESS + 0x1c) |
| #define EXC_RESET_VEC (EXC_BASE_ADDRESS + 0x0) |
| #define EXC_UNDEF_INSTR_VEC (EXC_BASE_ADDRESS + 0x4) |
| #define EXC_SWI_VEC (EXC_BASE_ADDRESS + 0x8) |
| #define EXC_PREFETCH_ABORT_VEC (EXC_BASE_ADDRESS + 0xc) |
| #define EXC_DATA_ABORT_VEC (EXC_BASE_ADDRESS + 0x10) |
| #define EXC_IRQ_VEC (EXC_BASE_ADDRESS + 0x18) |
| #define EXC_FIQ_VEC (EXC_BASE_ADDRESS + 0x1c) |
| /* Exception numbers */ |
| #define EXC_RESET 0 |
| #define EXC_UNDEF_INSTR 1 |
| #define EXC_SWI 2 |
| #define EXC_PREFETCH_ABORT 3 |
| #define EXC_DATA_ABORT 4 |
| #define EXC_IRQ 5 |
| #define EXC_FIQ 6 |
| #define EXC_RESET 0 |
| #define EXC_UNDEF_INSTR 1 |
| #define EXC_SWI 2 |
| #define EXC_PREFETCH_ABORT 3 |
| #define EXC_DATA_ABORT 4 |
| #define EXC_IRQ 5 |
| #define EXC_FIQ 6 |
| typedef struct { |
| uint32_t spsr; |
| uint32_t spsr; |
| uint32_t sp; |
| uint32_t lr; |
| uint32_t r0; |
| uint32_t r1; |
| uint32_t r2; |
| uint32_t r3; |
| uint32_t r4; |
| uint32_t r5; |
| uint32_t r6; |
| uint32_t r7; |
| uint32_t r8; |
| uint32_t r9; |
| uint32_t r10; |
| uint32_t r11; |
| uint32_t r12; |
| uint32_t r0; |
| uint32_t r1; |
| uint32_t r2; |
| uint32_t r3; |
| uint32_t r4; |
| uint32_t r5; |
| uint32_t r6; |
| uint32_t r7; |
| uint32_t r8; |
| uint32_t r9; |
| uint32_t r10; |
| uint32_t r11; |
| uint32_t r12; |
| uint32_t pc; |
| uint32_t pc; |
| } istate_t; |
| 108,6 → 107,7 |
| extern void setup_exception_stacks(void); |
| extern void install_exception_handlers(void); |
| extern void exception_init(void); |
| extern void print_istate(istate_t *istate); |
| #endif |
| /branches/arm/kernel/arch/arm32/include/mm/page_fault.h |
|---|
| 36,50 → 36,51 |
| #include <arch/types.h> |
| /** |
| * Decribes structure of fault status register in coprocessor 15 |
| /** Decribes CP15 "fault status register" (FSR). |
| */ |
| typedef struct { |
| unsigned status : 3; |
| unsigned domain : 4; |
| unsigned zero : 1; |
| unsigned should_be_zero : 24; |
| unsigned status : 3; |
| unsigned domain : 4; |
| unsigned zero : 1; |
| unsigned should_be_zero : 24; |
| } __attribute__ ((packed)) fault_status_t; |
| /** |
| * Help union used for overcasting integer value into fault_status_t type |
| /** Help union used for casting integer value into #fault_status_t. |
| */ |
| typedef union { |
| fault_status_t fsr; |
| uint32_t dummy; |
| fault_status_t fs; |
| uint32_t dummy; |
| } fault_status_union_t; |
| /** |
| * Very simplyfied description of instruction code structure intended for |
| * recognising memmory access of instruction ( reads or writes into memmory) |
| * more details: see ARM architecture preference |
| * chapter:3.1 Instruction set encoding |
| /** Simplified description of instruction code. |
| * |
| * \note Used for recognizing memory access instructions. |
| * \see ARM architecture reference (chapter 3.1) |
| */ |
| typedef struct { |
| unsigned dummy1 : 4; |
| unsigned bit4 : 1; |
| unsigned bits567 : 3; |
| unsigned dummy : 12; |
| unsigned access : 1; |
| unsigned opcode : 4; |
| unsigned instr_type : 3; |
| unsigned condition : 4; |
| unsigned dummy1 : 4; |
| unsigned bit4 : 1; |
| unsigned bits567 : 3; |
| unsigned dummy : 12; |
| unsigned access : 1; |
| unsigned opcode : 4; |
| unsigned type : 3; |
| unsigned condition : 4; |
| } __attribute__ ((packed)) instruction_t; |
| /** |
| * Help union used for overcasting ip register (uint_32_t) value into |
| * instruction_t pointer |
| /** Help union used for casting pc register (uint_32_t) value into |
| * #instruction_t pointer. |
| */ |
| typedef union { |
| instruction_t* instr; |
| uint32_t ip; |
| instruction_t* instr; |
| uint32_t pc; |
| } instruction_union_t; |
| extern void prefetch_abort(int n, istate_t *istate); |
| extern void data_abort(int n, istate_t *istate); |