/kernel/trunk/generic/src/main/main.c |
---|
0,0 → 1,288 |
/* |
* Copyright (C) 2001-2004 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. |
*/ |
#include <arch/asm.h> |
#include <context.h> |
#include <print.h> |
#include <panic.h> |
#include <debug.h> |
#include <config.h> |
#include <time/clock.h> |
#include <proc/scheduler.h> |
#include <proc/thread.h> |
#include <proc/task.h> |
#include <main/kinit.h> |
#include <main/version.h> |
#include <console/kconsole.h> |
#include <cpu.h> |
#include <align.h> |
#include <interrupt.h> |
#include <arch/mm/memory_init.h> |
#include <mm/frame.h> |
#include <mm/page.h> |
#include <genarch/mm/page_pt.h> |
#include <mm/tlb.h> |
#include <mm/as.h> |
#include <mm/slab.h> |
#include <synch/waitq.h> |
#include <arch/arch.h> |
#include <arch.h> |
#include <arch/faddr.h> |
#include <typedefs.h> |
#include <ipc/ipc.h> |
#include <macros.h> |
#ifdef CONFIG_SMP |
#include <arch/smp/apic.h> |
#include <arch/smp/mps.h> |
#endif /* CONFIG_SMP */ |
#include <smp/smp.h> |
config_t config; /**< Global configuration structure. */ |
init_t init = {0}; /**< Initial user-space tasks */ |
context_t ctx; |
/** |
* These 'hardcoded' variables will be intialized by |
* the linker or the low level assembler code with |
* appropriate sizes and addresses. |
*/ |
__address hardcoded_load_address = 0; |
size_t hardcoded_ktext_size = 0; |
size_t hardcoded_kdata_size = 0; |
void main_bsp(void); |
void main_ap(void); |
/* |
* These two functions prevent stack from underflowing during the |
* kernel boot phase when SP is set to the very top of the reserved |
* space. The stack could get corrupted by a fooled compiler-generated |
* pop sequence otherwise. |
*/ |
static void main_bsp_separated_stack(void); |
#ifdef CONFIG_SMP |
static void main_ap_separated_stack(void); |
#endif |
/** Bootstrap CPU main kernel routine |
* |
* Initializes the kernel by bootstrap CPU. |
* This function passes control directly to |
* main_bsp_separated_stack(). |
* |
* Assuming interrupts_disable(). |
* |
*/ |
void main_bsp(void) |
{ |
__address stackaddr; |
config.cpu_count = 1; |
config.cpu_active = 1; |
config.base = hardcoded_load_address; |
config.memory_size = get_memory_size(); |
config.kernel_size = ALIGN_UP(hardcoded_ktext_size + hardcoded_kdata_size, PAGE_SIZE); |
stackaddr = config.base + config.kernel_size; |
/* Avoid placing kernel on top of init */ |
count_t i; |
bool overlap = false; |
for (i = 0; i < init.cnt; i++) |
if (PA_overlaps(stackaddr, CONFIG_STACK_SIZE, init.tasks[i].addr, init.tasks[i].size)) { |
stackaddr = ALIGN_UP(init.tasks[i].addr + init.tasks[i].size, CONFIG_STACK_SIZE); |
init.tasks[i].size = ALIGN_UP(init.tasks[i].size, CONFIG_STACK_SIZE) + CONFIG_STACK_SIZE; |
overlap = true; |
} |
if (!overlap) |
config.kernel_size += CONFIG_STACK_SIZE; |
context_save(&ctx); |
context_set(&ctx, FADDR(main_bsp_separated_stack), |
stackaddr, CONFIG_STACK_SIZE); |
context_restore(&ctx); |
/* not reached */ |
} |
/** Bootstrap CPU main kernel routine stack wrapper |
* |
* Second part of main_bsp(). |
* |
*/ |
void main_bsp_separated_stack(void) |
{ |
task_t *k; |
thread_t *t; |
the_initialize(THE); |
/* |
* kconsole data structures must be initialized very early |
* because other subsystems will register their respective |
* commands. |
*/ |
kconsole_init(); |
/* |
* Exception handler initialization, before architecture |
* starts adding its own handlers |
*/ |
exc_init(); |
/* |
* Memory management subsystems initialization. |
*/ |
arch_pre_mm_init(); |
frame_init(); /* Initialize at least 1 memory segment big enough for slab to work */ |
slab_cache_init(); |
as_init(); |
page_init(); |
tlb_init(); |
arch_post_mm_init(); |
version_print(); |
printf("%P: hardcoded_ktext_size=%dK, hardcoded_kdata_size=%dK\n", |
config.base, hardcoded_ktext_size/1024, hardcoded_kdata_size/1024); |
arch_pre_smp_init(); |
smp_init(); |
slab_enable_cpucache(); /* Slab must be initialized AFTER we know the number of processors */ |
printf("config.memory_size=%dM\n", config.memory_size/(1024*1024)); |
printf("config.cpu_count=%d\n", config.cpu_count); |
cpu_init(); |
calibrate_delay_loop(); |
timeout_init(); |
scheduler_init(); |
task_init(); |
thread_init(); |
count_t i; |
for (i = 0; i < init.cnt; i++) |
printf("init[%d].addr=%P, init[%d].size=%d\n", i, init.tasks[i].addr, i, init.tasks[i].size); |
ipc_init(); |
/* |
* Create kernel task. |
*/ |
k = task_create(AS_KERNEL, "KERNEL"); |
if (!k) |
panic("can't create kernel task\n"); |
/* |
* Create the first thread. |
*/ |
t = thread_create(kinit, NULL, k, 0, "kinit"); |
if (!t) |
panic("can't create kinit thread\n"); |
thread_ready(t); |
/* |
* This call to scheduler() will return to kinit, |
* starting the thread of kernel threads. |
*/ |
scheduler(); |
/* not reached */ |
} |
#ifdef CONFIG_SMP |
/** Application CPUs main kernel routine |
* |
* Executed by application processors, temporary stack |
* is at ctx.sp which was set during BP boot. |
* This function passes control directly to |
* main_ap_separated_stack(). |
* |
* Assuming interrupts_disable()'d. |
* |
*/ |
void main_ap(void) |
{ |
/* |
* Incrementing the active CPU counter will guarantee that the |
* pm_init() will not attempt to build GDT and IDT tables again. |
* Neither frame_init() will do the complete thing. Neither cpu_init() |
* will do. |
*/ |
config.cpu_active++; |
/* |
* The THE structure is well defined because ctx.sp is used as stack. |
*/ |
the_initialize(THE); |
arch_pre_mm_init(); |
frame_init(); |
page_init(); |
tlb_init(); |
arch_post_mm_init(); |
cpu_init(); |
calibrate_delay_loop(); |
l_apic_init(); |
l_apic_debug(); |
the_copy(THE, (the_t *) CPU->stack); |
/* |
* If we woke kmp up before we left the kernel stack, we could |
* collide with another CPU coming up. To prevent this, we |
* switch to this cpu's private stack prior to waking kmp up. |
*/ |
context_set(&CPU->saved_context, FADDR(main_ap_separated_stack), (__address) CPU->stack, CPU_STACK_SIZE); |
context_restore(&CPU->saved_context); |
/* not reached */ |
} |
/** Application CPUs main kernel routine stack wrapper |
* |
* Second part of main_ap(). |
* |
*/ |
void main_ap_separated_stack(void) |
{ |
/* |
* Configure timeouts for this cpu. |
*/ |
timeout_init(); |
waitq_wakeup(&ap_completion_wq, WAKEUP_FIRST); |
scheduler(); |
/* not reached */ |
} |
#endif /* CONFIG_SMP */ |
/kernel/trunk/generic/src/main/uinit.c |
---|
0,0 → 1,53 |
/* |
* 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. |
*/ |
#include <main/uinit.h> |
#include <arch/types.h> |
#include <proc/thread.h> |
#include <userspace.h> |
#include <mm/slab.h> |
#include <print.h> |
/** Thread used to bring up userspace thread. |
* |
* @param arg Pointer to structure containing userspace entry and stack addresses. |
*/ |
void uinit(void *arg) |
{ |
uspace_arg_t uarg; |
uarg.uspace_entry = ((uspace_arg_t *) arg)->uspace_entry; |
uarg.uspace_stack = ((uspace_arg_t *) arg)->uspace_stack; |
uarg.uspace_uarg = ((uspace_arg_t *) arg)->uspace_uarg; |
uarg.uspace_thread_function = NULL; |
uarg.uspace_thread_arg = NULL; |
free((uspace_arg_t *) arg); |
userspace(&uarg); |
} |
/kernel/trunk/generic/src/main/kinit.c |
---|
0,0 → 1,164 |
/* |
* Copyright (C) 2001-2004 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. |
*/ |
#include <main/kinit.h> |
#include <config.h> |
#include <arch.h> |
#include <proc/scheduler.h> |
#include <proc/task.h> |
#include <proc/thread.h> |
#include <panic.h> |
#include <func.h> |
#include <cpu.h> |
#include <arch/asm.h> |
#include <mm/page.h> |
#include <arch/mm/page.h> |
#include <mm/as.h> |
#include <mm/frame.h> |
#include <print.h> |
#include <memstr.h> |
#include <console/console.h> |
#include <interrupt.h> |
#include <console/kconsole.h> |
#ifdef CONFIG_SMP |
#include <arch/smp/mps.h> |
#endif /* CONFIG_SMP */ |
#include <synch/waitq.h> |
#include <synch/spinlock.h> |
#ifdef CONFIG_TEST |
#include <test.h> |
#endif /* CONFIG_TEST */ |
/** Kernel initialization thread. |
* |
* kinit takes care of higher level kernel |
* initialization (i.e. thread creation, |
* userspace initialization etc.). |
* |
* @param arg Not used. |
*/ |
void kinit(void *arg) |
{ |
thread_t *t; |
task_t *utask; |
interrupts_disable(); |
#ifdef CONFIG_SMP |
if (config.cpu_count > 1) { |
/* |
* Create the kmp thread and wait for its completion. |
* cpu1 through cpuN-1 will come up consecutively and |
* not mess together with kcpulb threads. |
* Just a beautification. |
*/ |
if ((t = thread_create(kmp, NULL, TASK, 0, "kmp"))) { |
spinlock_lock(&t->lock); |
t->flags |= X_WIRED; |
t->cpu = &cpus[0]; |
spinlock_unlock(&t->lock); |
thread_ready(t); |
waitq_sleep(&kmp_completion_wq); |
} |
else panic("thread_create/kmp\n"); |
} |
#endif /* CONFIG_SMP */ |
/* |
* Now that all CPUs are up, we can report what we've found. |
*/ |
cpu_list(); |
#ifdef CONFIG_SMP |
if (config.cpu_count > 1) { |
int i; |
/* |
* For each CPU, create its load balancing thread. |
*/ |
for (i = 0; i < config.cpu_count; i++) { |
if ((t = thread_create(kcpulb, NULL, TASK, 0, "kcpulb"))) { |
spinlock_lock(&t->lock); |
t->flags |= X_WIRED; |
t->cpu = &cpus[i]; |
spinlock_unlock(&t->lock); |
thread_ready(t); |
} |
else panic("thread_create/kcpulb\n"); |
} |
} |
#endif /* CONFIG_SMP */ |
/* |
* At this point SMP, if present, is configured. |
*/ |
arch_post_smp_init(); |
/* |
* Create kernel console. |
*/ |
if ((t = thread_create(kconsole, "kconsole", TASK, 0, "kconsole"))) |
thread_ready(t); |
else |
panic("thread_create/kconsole\n"); |
interrupts_enable(); |
count_t i; |
for (i = 0; i < init.cnt; i++) { |
/* |
* Run user tasks. |
*/ |
if (init.tasks[i].addr % FRAME_SIZE) |
panic("init[%d].addr is not frame aligned", i); |
utask = task_run_program((void *) init.tasks[i].addr, "USPACE"); |
if (utask) { |
if (!ipc_phone_0) |
ipc_phone_0 = &utask->answerbox; |
} else |
printf("Init task %d not started.\n", i); |
} |
#ifdef CONFIG_TEST |
test(); |
#endif /* CONFIG_TEST */ |
if (!stdin) { |
while (1) { |
thread_sleep(1); |
printf("kinit... "); |
} |
} |
} |
/kernel/trunk/generic/src/main/version.c |
---|
0,0 → 1,54 |
/* |
* Copyright (C) 2006 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. |
*/ |
#include <main/version.h> |
#include <print.h> |
char *project = "SPARTAN kernel"; |
char *copyright = "Copyright (C) 2001-2006 HelenOS project"; |
char *release = RELEASE; |
char *name = NAME; |
char *arch = ARCH; |
#ifdef REVISION |
char *revision = ", revision " REVISION; |
#else |
char *revision = ""; |
#endif |
#ifdef TIMESTAMP |
char *timestamp = " on " TIMESTAMP; |
#else |
char *timestamp = ""; |
#endif |
/** Print version information. */ |
void version_print(void) |
{ |
printf("%s, release %s (%s)%s\nBuilt%s for %s\n%s\n", project, release, name, revision, timestamp, arch, copyright); |
} |