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| 32 | /** @file |
32 | /** @file |
| 33 | @brief Exception handlers and exception initialization routines. |
33 | @brief Exception handlers and exception initialization routines. |
| 34 | */ |
34 | */ |
| 35 | 35 | ||
| 36 | #include <arch/exception.h> |
36 | #include <arch/exception.h> |
| 37 | #include <arch/debug_print/print.h> |
37 | #include <arch/debug/print.h> |
| 38 | #include <arch/memstr.h> |
38 | #include <arch/memstr.h> |
| 39 | #include <arch/regutils.h> |
39 | #include <arch/regutils.h> |
| 40 | #include <interrupt.h> |
40 | #include <interrupt.h> |
| 41 | #include <arch/machine.h> |
41 | #include <arch/machine.h> |
| 42 | #include <arch/mm/page_fault.h> |
42 | #include <arch/mm/page_fault.h> |
| Line 305... | Line 305... | ||
| 305 | 305 | ||
| 306 | asm volatile( "mcr p15, 0, %0, c1, c1" : : "r" (control_reg)); |
306 | asm volatile( "mcr p15, 0, %0, c1, c1" : : "r" (control_reg)); |
| 307 | } |
307 | } |
| 308 | #endif |
308 | #endif |
| 309 | 309 | ||
| - | 310 | ||
| 310 | /** Initializes exception handling. |
311 | /** Initializes exception handling. |
| 311 | * |
312 | * |
| 312 | * Installs low-level exception handlers and then registers |
313 | * Installs low-level exception handlers and then registers |
| 313 | * exceptions and their handlers to kernel exception dispatcher. |
314 | * exceptions and their handlers to kernel exception dispatcher. |
| 314 | */ |
315 | */ |
| Line 324... | Line 325... | ||
| 324 | exc_register(EXC_DATA_ABORT, "data abort", (iroutine) data_abort); |
325 | exc_register(EXC_DATA_ABORT, "data abort", (iroutine) data_abort); |
| 325 | exc_register(EXC_SWI, "software interrupt", (iroutine) swi_exception); |
326 | exc_register(EXC_SWI, "software interrupt", (iroutine) swi_exception); |
| 326 | /* TODO add next */ |
327 | /* TODO add next */ |
| 327 | } |
328 | } |
| 328 | 329 | ||
| - | 330 | ||
| 329 | /** Sets stack pointers in all supported exception modes. |
331 | /** Sets stack pointers in all supported exception modes. |
| 330 | * |
- | |
| 331 | * @param stack_ptr stack pointer |
- | |
| 332 | */ |
332 | */ |
| 333 | void setup_exception_stacks() |
333 | void setup_exception_stacks() |
| 334 | { |
334 | { |
| 335 | /* switch to particular mode and set "r13" there */ |
335 | /* switch to particular mode and set "r13" there */ |
| 336 | 336 | ||
| Line 351... | Line 351... | ||
| 351 | /* TODO if you want to test other exceptions than IRQ, |
351 | /* TODO if you want to test other exceptions than IRQ, |
| 352 | make stack analogous to irq_stack (in start.S), |
352 | make stack analogous to irq_stack (in start.S), |
| 353 | and then set stack pointer here */ |
353 | and then set stack pointer here */ |
| 354 | 354 | ||
| 355 | current_status_reg_control_write(cspr); |
355 | current_status_reg_control_write(cspr); |
| 356 | - | ||
| 357 | } |
356 | } |
| 358 | 357 | ||
| 359 | 358 | ||
| - | 359 | /** Prints #istate_t structure content. |
|
| - | 360 | * |
|
| - | 361 | * @param istate Structure to be printed. |
|
| - | 362 | */ |
|
| 360 | void print_istate(istate_t *istate) |
363 | void print_istate(istate_t *istate) |
| 361 | { |
364 | { |
| 362 | dprintf("istate dump:\n"); |
365 | dprintf("istate dump:\n"); |
| 363 | 366 | ||
| 364 | dprintf(" r0: %x r1: %x r2: %x r3: %x\n", |
367 | dprintf(" r0: %x r1: %x r2: %x r3: %x\n", |