| 0,0 → 1,164 |
|---|
| /* |
| * Copyright (c) 2007 Michal Kebrt |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * |
| * - Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * - Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * - The name of the author may not be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
| * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
| * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
| * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
| * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| /** @addtogroup arm32 |
| * @{ |
| */ |
| /** @file |
| * @brief ARM32 architecture specific functions. |
| */ |
| |
| #include <arch.h> |
| #include <arch/boot.h> |
| #include <config.h> |
| #include <arch/console.h> |
| #include <ddi/device.h> |
| #include <genarch/fb/fb.h> |
| #include <genarch/fb/visuals.h> |
| #include <ddi/irq.h> |
| #include <arch/debug/print.h> |
| #include <print.h> |
| #include <config.h> |
| #include <interrupt.h> |
| #include <arch/regutils.h> |
| #include <arch/machine.h> |
| #include <userspace.h> |
| |
| /** Information about loaded tasks. */ |
| bootinfo_t bootinfo; |
| |
| /** Performs arm32 specific initialization before main_bsp() is called. */ |
| void arch_pre_main(void) |
| { |
| unsigned int i; |
| |
| init.cnt = bootinfo.cnt; |
| |
| for (i = 0; i < bootinfo.cnt; ++i) { |
| init.tasks[i].addr = bootinfo.tasks[i].addr; |
| init.tasks[i].size = bootinfo.tasks[i].size; |
| } |
| |
| } |
| |
| /** Performs arm32 specific initialization before mm is initialized. */ |
| void arch_pre_mm_init(void) |
| { |
| /* It is not assumed by default */ |
| interrupts_disable(); |
| } |
| |
| /** Performs arm32 specific initialization afterr mm is initialized. */ |
| void arch_post_mm_init(void) |
| { |
| machine_hw_map_init(); |
| |
| /* Initialize exception dispatch table */ |
| exception_init(); |
| |
| interrupt_init(); |
| |
| console_init(device_assign_devno()); |
| |
| #ifdef CONFIG_FB |
| fb_init(machine_get_fb_address(), 640, 480, 1920, VISUAL_RGB_8_8_8); |
| #endif |
| } |
| |
| /** Performs arm32 specific tasks needed after cpu is initialized. |
| * |
| * Currently the function is empty. |
| */ |
| void arch_post_cpu_init(void) |
| { |
| } |
| |
| |
| /** Performs arm32 specific tasks needed before the multiprocessing is |
| * initialized. |
| * |
| * Currently the function is empty because SMP is not supported. |
| */ |
| void arch_pre_smp_init(void) |
| { |
| } |
| |
| |
| /** Performs arm32 specific tasks needed after the multiprocessing is |
| * initialized. |
| * |
| * Currently the function is empty because SMP is not supported. |
| */ |
| void arch_post_smp_init(void) |
| { |
| } |
| |
| |
| /** Performs arm32 specific tasks needed before the new task is run. */ |
| void before_task_runs_arch(void) |
| { |
| tlb_invalidate_all(); |
| } |
| |
| |
| /** Performs arm32 specific tasks needed before the new thread is scheduled. |
| * |
| * It sets supervisor_sp. |
| */ |
| void before_thread_runs_arch(void) |
| { |
| uint8_t *stck; |
| |
| stck = &THREAD->kstack[THREAD_STACK_SIZE - SP_DELTA]; |
| supervisor_sp = (uintptr_t) stck; |
| } |
| |
| /** Performs arm32 specific tasks before a thread stops running. |
| * |
| * Currently the function is empty. |
| */ |
| void after_thread_ran_arch(void) |
| { |
| } |
| |
| /** Halts CPU. */ |
| void cpu_halt(void) |
| { |
| machine_cpu_halt(); |
| } |
| |
| /** Reboot. */ |
| void arch_reboot() |
| { |
| /* not implemented */ |
| for (;;) |
| ; |
| } |
| |
| /** @} |
| */ |