| 0,0 → 1,170 |
|---|
| /* |
| * Copyright (c) 2005 Jakub Jermar |
| * 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 sparc64 |
| * @{ |
| */ |
| /** @file |
| */ |
| |
| #include <arch.h> |
| #include <debug.h> |
| #include <config.h> |
| #include <arch/trap/trap.h> |
| #include <arch/console.h> |
| #include <proc/thread.h> |
| #include <console/console.h> |
| #include <arch/boot/boot.h> |
| #include <arch/arch.h> |
| #include <arch/asm.h> |
| #include <arch/mm/page.h> |
| #include <arch/stack.h> |
| #include <genarch/ofw/ofw_tree.h> |
| #include <userspace.h> |
| #include <ddi/irq.h> |
| #include <print.h> |
| |
| #include <arch/drivers/niagara.h> |
| |
| bootinfo_t bootinfo; |
| |
| /** Perform sparc64 specific initialization before main_bsp() is called. */ |
| void arch_pre_main(void) |
| { |
| niagara_init(); |
| |
| /* Copy init task info. */ |
| init.cnt = bootinfo.taskmap.count; |
| |
| uint32_t i; |
| |
| for (i = 0; i < bootinfo.taskmap.count; i++) { |
| init.tasks[i].addr = (uintptr_t) bootinfo.taskmap.tasks[i].addr; |
| init.tasks[i].size = bootinfo.taskmap.tasks[i].size; |
| } |
| |
| /* Copy boot allocations info. */ |
| ballocs.base = bootinfo.ballocs.base; |
| ballocs.size = bootinfo.ballocs.size; |
| |
| ofw_tree_init(bootinfo.ofw_root); |
| } |
| |
| /** Perform sparc64 specific initialization before mm is initialized. */ |
| void arch_pre_mm_init(void) |
| { |
| if (config.cpu_active == 1) |
| trap_init(); |
| } |
| |
| /** Perform sparc64 specific initialization afterr mm is initialized. */ |
| void arch_post_mm_init(void) |
| { |
| if (config.cpu_active == 1) { |
| /* |
| * We have 2^11 different interrupt vectors. |
| * But we only create 128 buckets. |
| */ |
| irq_init(1 << 11, 128); |
| |
| standalone_sparc64_console_init(); |
| } |
| } |
| |
| void arch_post_cpu_init(void) |
| { |
| } |
| |
| void arch_pre_smp_init(void) |
| { |
| } |
| |
| void arch_post_smp_init(void) |
| { |
| static thread_t *t = NULL; |
| |
| |
| if (!t) { |
| /* |
| * Create thread that polls keyboard. |
| */ |
| t = thread_create(kkbdpoll, NULL, TASK, 0, "kkbdpoll", true); |
| if (!t) |
| panic("cannot create kkbdpoll\n"); |
| thread_ready(t); |
| } |
| } |
| |
| /** Calibrate delay loop. |
| * |
| * On sparc64, we implement delay() by waiting for the TICK register to |
| * reach a pre-computed value, as opposed to performing some pre-computed |
| * amount of instructions of known duration. We set the delay_loop_const |
| * to 1 in order to neutralize the multiplication done by delay(). |
| */ |
| void calibrate_delay_loop(void) |
| { |
| CPU->delay_loop_const = 1; |
| } |
| |
| /** Wait several microseconds. |
| * |
| * We assume that interrupts are already disabled. |
| * |
| * @param t Microseconds to wait. |
| */ |
| void asm_delay_loop(const uint32_t usec) |
| { |
| uint64_t stop = tick_read() + (uint64_t) usec * (uint64_t) |
| CPU->arch.clock_frequency / 1000000; |
| |
| while (tick_read() < stop) |
| ; |
| } |
| |
| /** Switch to userspace. */ |
| void userspace(uspace_arg_t *kernel_uarg) |
| { |
| switch_to_userspace((uintptr_t) kernel_uarg->uspace_entry, |
| ((uintptr_t) kernel_uarg->uspace_stack) + STACK_SIZE |
| - (ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT) + STACK_BIAS), |
| (uintptr_t) kernel_uarg->uspace_uarg); |
| |
| for (;;) |
| ; |
| /* not reached */ |
| } |
| |
| void arch_reboot(void) |
| { |
| // TODO |
| while (1); |
| } |
| |
| /** @} |
| */ |