diff options
Diffstat (limited to 'c/src/lib/libbsp/powerpc/psim/startup/bspstart.c')
| -rw-r--r-- | c/src/lib/libbsp/powerpc/psim/startup/bspstart.c | 124 |
1 files changed, 1 insertions, 123 deletions
diff --git a/c/src/lib/libbsp/powerpc/psim/startup/bspstart.c b/c/src/lib/libbsp/powerpc/psim/startup/bspstart.c index cc588fc2cd..a6c62adf32 100644 --- a/c/src/lib/libbsp/powerpc/psim/startup/bspstart.c +++ b/c/src/lib/libbsp/powerpc/psim/startup/bspstart.c @@ -42,61 +42,6 @@ extern rtems_unsigned32 rdb_start; #endif /* - * Amount to increment itimer by each pass - * It is a variable instead of a #define to allow the 'looptest' - * script to bump it without recompiling rtems - * - * NOTE: This is based on the PA-RISC simulator. I don't know if we - * can actually pull this trick on the PPC simulator. - */ - -rtems_unsigned32 CPU_PPC_CLICKS_PER_TICK; - -#if PSIM_FAST_IDLE - -/* - * Many of the tests are very slow on the simulator because they have - * have 5 second delays hardwired in. - * - * Try to speed those tests up by speeding up the clock when in the idle task. - * - * NOTE: At the current setting, 5 second delays in the tests take - * approximately 5 seconds of wall time. - */ - -rtems_extension fast_idle_switch_hook( - rtems_tcb *current_task, - rtems_tcb *heir_task -) -{ - static rtems_unsigned32 normal_clock = ~0; - static rtems_unsigned32 fast_clock; - - /* init our params on first call */ - if (normal_clock == (rtems_unsigned32) ~0) - { - normal_clock = CPU_PPC_CLICKS_PER_TICK; - fast_clock = 10000; -#if 0 - fast_clock = CPU_PPC_CLICKS_PER_TICK / 0x10 ; -#endif - if (fast_clock == 0) /* handle pathological case */ - fast_clock++; - } - - /* - * Run the clock faster when idle is in place. - */ - - if (heir_task == _Thread_Idle) - CPU_PPC_CLICKS_PER_TICK = fast_clock; - else if (current_task == _Thread_Idle) - CPU_PPC_CLICKS_PER_TICK = normal_clock; -} - -#endif - -/* * Use the shared implementations of the following routines */ @@ -125,36 +70,6 @@ void bsp_pretasking_hook(void) bsp_libc_init((void *) heap_start, heap_size, 0); -#if PSIM_FAST_IDLE - /* - * Install the fast idle task switch extension - * - * On MP systems, might not want to do this; it confuses at least - * one test (mp06) on the PA-RISC simulator - */ - -#if 0 - if (BSP_Configuration.User_multiprocessing_table == 0) -#endif - { - rtems_extensions_table fast_idle_extension; - rtems_id extension_id; - rtems_status_code rc; - - memset(&fast_idle_extension, 0, sizeof(fast_idle_extension)); - - fast_idle_extension.thread_switch = fast_idle_switch_hook; - - rc = rtems_extension_create( - rtems_build_name('F', 'D', 'L', 'E'), - &fast_idle_extension, - &extension_id - ); - if (rc != RTEMS_SUCCESSFUL) - rtems_fatal_error_occurred(rc); - } -#endif - #ifdef RTEMS_DEBUG rtems_debug_enable( RTEMS_DEBUG_ALL_MASK ); #endif @@ -209,53 +124,16 @@ void bsp_start( void ) Cpu_table.exceptions_in_RAM = TRUE; -/* -#if defined(RTEMS_POSIX_API) - BSP_Configuration.work_space_size *= 3; -#endif -*/ - BSP_Configuration.work_space_size += 1024; -#if 0 - work_space_start = - (unsigned char *)rdb_start - BSP_Configuration.work_space_size; -#endif - work_space_start = (unsigned char *)&RAM_END - BSP_Configuration.work_space_size; if ( work_space_start <= (unsigned char *)&end ) { - DEBUG_puts( "bspstart: Not enough RAM!!!\n" ); + printk( "bspstart: Not enough RAM!!!\n" ); bsp_cleanup(); } BSP_Configuration.work_space_start = work_space_start; -#if PSIM_FAST_IDLE - /* - * Add 1 extension for fast idle - */ - - BSP_Configuration.maximum_extensions++; -#endif - - /* - * Set the "clicks per tick" for the simulator - * used by XXX/clock/clock.c to schedule interrupts - * - * NOTE: On psim, each click of the decrementer register corresponds - * to 1 instruction. By setting this to 100, we are indicating - * that we are assuming it can execute 100 instructions per - * microsecond. This corresponds to sustaining 1 instruction - * per cycle at 100 Mhz. Whether this is a good guess or not - * is anyone's guess. - */ - - { - extern int PSIM_INSTRUCTIONS_PER_MICROSECOND; - - CPU_PPC_CLICKS_PER_TICK = BSP_Configuration.microseconds_per_tick * - (int) &PSIM_INSTRUCTIONS_PER_MICROSECOND; - } } |