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Diffstat (limited to '')
| -rw-r--r-- | bsps/sparc/leon3/start/spurious.c | 183 |
1 files changed, 0 insertions, 183 deletions
diff --git a/bsps/sparc/leon3/start/spurious.c b/bsps/sparc/leon3/start/spurious.c deleted file mode 100644 index 23ac4bf4cf..0000000000 --- a/bsps/sparc/leon3/start/spurious.c +++ /dev/null @@ -1,183 +0,0 @@ -/* - * LEON Spurious Trap Handler - * - * This is just enough of a trap handler to let us know what - * the likely source of the trap was. - * - * Developed as part of the port of RTEMS to the LEON implementation - * of the SPARC by On-Line Applications Research Corporation (OAR) - * under contract to the European Space Agency (ESA). - * - * COPYRIGHT (c) 1995. European Space Agency. - * - * Modified for LEON3 BSP. - * COPYRIGHT (c) 2004. - * Gaisler Research. - * - * This terms of the RTEMS license apply to this file. - */ - -#include <bsp.h> -#include <rtems/score/cpu.h> -#include <rtems/bspIo.h> -#include <inttypes.h> - -void _CPU_Exception_frame_print( const CPU_Exception_frame *frame ) -{ - uint32_t trap; - uint32_t real_trap; - const CPU_Interrupt_frame *isf; - - trap = frame->trap; - real_trap = SPARC_REAL_TRAP_NUMBER(trap); - isf = frame->isf; - - printk( - "Unexpected trap (%2" PRId32 ") at address 0x%08" PRIx32 "\n", - real_trap, - isf->tpc - ); - - switch (real_trap) { - - /* - * First the ones defined by the basic architecture - */ - - case 0x00: - printk( "reset\n" ); - break; - case 0x01: - printk( "instruction access exception\n" ); - break; - case 0x02: - printk( "illegal instruction\n" ); - break; - case 0x03: - printk( "privileged instruction\n" ); - break; - case 0x04: - printk( "fp disabled\n" ); - break; - case 0x07: - printk( "memory address not aligned\n" ); - break; - case 0x08: - printk( "fp exception\n" ); - break; - case 0x0A: - printk( "tag overflow\n" ); - break; - - /* - * Then the ones defined by the LEON in particular - */ - /* FIXME */ - - /* - case LEON_TRAP_TYPE( LEON_INTERRUPT_CORRECTABLE_MEMORY_ERROR ): - printk( "LEON_INTERRUPT_CORRECTABLE_MEMORY_ERROR\n" ); - break; - case LEON_TRAP_TYPE( LEON_INTERRUPT_UART_2_RX_TX ): - printk( "LEON_INTERRUPT_UART_2_RX_TX\n" ); - break; - case LEON_TRAP_TYPE( LEON_INTERRUPT_UART_1_RX_TX ): - printk( "LEON_INTERRUPT_UART_1_RX_TX\n" ); - break; - case LEON_TRAP_TYPE( LEON_INTERRUPT_EXTERNAL_0 ): - printk( "LEON_INTERRUPT_EXTERNAL_0\n" ); - break; - case LEON_TRAP_TYPE( LEON_INTERRUPT_EXTERNAL_1 ): - printk( "LEON_INTERRUPT_EXTERNAL_1\n" ); - break; - case LEON_TRAP_TYPE( LEON_INTERRUPT_EXTERNAL_2 ): - printk( "LEON_INTERRUPT_EXTERNAL_2\n" ); - break; - case LEON_TRAP_TYPE( LEON_INTERRUPT_EXTERNAL_3 ): - printk( "LEON_INTERRUPT_EXTERNAL_3\n" ); - break; - case LEON_TRAP_TYPE( LEON_INTERRUPT_TIMER1 ): - printk( "LEON_INTERRUPT_TIMER1\n" ); - break; - case LEON_TRAP_TYPE( LEON_INTERRUPT_TIMER2 ): - printk( "LEON_INTERRUPT_TIMER2\n" ); - break; - */ - - default: - break; - } -} - -static rtems_isr bsp_spurious_handler( - rtems_vector_number trap, - CPU_Interrupt_frame *isf -) -{ - CPU_Exception_frame frame = { - .trap = trap, - .isf = isf - }; - -#if !defined(SPARC_USE_LAZY_FP_SWITCH) - if ( SPARC_REAL_TRAP_NUMBER( trap ) == 4 ) { - _Internal_error( INTERNAL_ERROR_ILLEGAL_USE_OF_FLOATING_POINT_UNIT ); - } -#endif - - rtems_fatal( - RTEMS_FATAL_SOURCE_EXCEPTION, - (rtems_fatal_code) &frame - ); -} - -/* - * bsp_spurious_initialize - * - * Install the spurious handler for most traps. Note that set_vector() - * will unmask the corresponding asynchronous interrupt, so the initial - * interrupt mask is restored after the handlers are installed. - */ - -void bsp_spurious_initialize() -{ - uint32_t trap; - uint32_t level; - /* uint32_t mask; */ - - level = sparc_disable_interrupts(); - /* mask = LEON3_IrqCtrl_Regs->mask_p0; */ - - for ( trap=0 ; trap<256 ; trap++ ) { - - /* - * Skip window overflow, underflow, and flush as well as software - * trap 0,9,10 which we will use as a shutdown, IRQ disable, IRQ enable. - * Also avoid trap 0x70 - 0x7f which cannot happen and where some of the - * space is used to pass parameters to the program. - */ - - if (( trap == 5 ) || ( trap == 6 ) || -#if defined(SPARC_USE_LAZY_FP_SWITCH) - ( trap == 4 ) || -#endif - (( trap >= 0x11 ) && ( trap <= 0x1f )) || - (( trap >= 0x70 ) && ( trap <= 0x83 )) || - ( trap == 0x80 + SPARC_SWTRAP_IRQDIS ) || -#if defined(SPARC_USE_SYNCHRONOUS_FP_SWITCH) - ( trap == 0x80 + SPARC_SWTRAP_IRQDIS_FP ) || -#endif - ( trap == 0x80 + SPARC_SWTRAP_IRQEN )) - continue; - - set_vector( - (rtems_isr_entry) bsp_spurious_handler, - SPARC_SYNCHRONOUS_TRAP( trap ), - 1 - ); - } - - /* LEON3_IrqCtrl_Regs->mask_p0 = mask; */ - sparc_enable_interrupts(level); - -} |