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Ignore whitespace Rev 4054 → Rev 4055

/branches/dd/kernel/generic/src/main/kinit.c
32,7 → 32,7
 
/**
* @file
* @brief Kernel initialization thread.
* @brief Kernel initialization thread.
*
* This file contains kinit kernel thread which carries out
* high level system initialization.
47,6 → 47,7
#include <proc/scheduler.h>
#include <proc/task.h>
#include <proc/thread.h>
#include <proc/program.h>
#include <panic.h>
#include <func.h>
#include <cpu.h>
63,6 → 64,8
#include <security/cap.h>
#include <lib/rd.h>
#include <ipc/ipc.h>
#include <debug.h>
#include <string.h>
 
#ifdef CONFIG_SMP
#include <smp/smp.h>
71,6 → 74,15
#include <synch/waitq.h>
#include <synch/spinlock.h>
 
#define ALIVE_CHARS 4
 
#ifdef CONFIG_KCONSOLE
static char alive[ALIVE_CHARS] = "-\\|/";
#endif
 
#define INIT_PREFIX "init:"
#define INIT_PREFIX_LEN 5
 
/** Kernel initialization thread.
*
* kinit takes care of higher level kernel
81,16 → 93,19
*/
void kinit(void *arg)
{
thread_t *t;
 
#if defined(CONFIG_SMP) || defined(CONFIG_KCONSOLE)
thread_t *thread;
#endif
/*
* Detach kinit as nobody will call thread_join_timeout() on it.
*/
thread_detach(THREAD);
 
interrupts_disable();
 
#ifdef CONFIG_SMP
#ifdef CONFIG_SMP
if (config.cpu_count > 1) {
waitq_initialize(&ap_completion_wq);
/*
99,24 → 114,18
* not mess together with kcpulb threads.
* Just a beautification.
*/
if ((t = thread_create(kmp, NULL, TASK, THREAD_FLAG_WIRED,
"kmp", true))) {
spinlock_lock(&t->lock);
t->cpu = &cpus[0];
spinlock_unlock(&t->lock);
thread_ready(t);
thread = thread_create(kmp, NULL, TASK, THREAD_FLAG_WIRED, "kmp", true);
if (thread != NULL) {
spinlock_lock(&thread->lock);
thread->cpu = &cpus[0];
spinlock_unlock(&thread->lock);
thread_ready(thread);
} else
panic("thread_create/kmp\n");
thread_join(t);
thread_detach(t);
panic("Unable to create kmp thread.");
thread_join(thread);
thread_detach(thread);
}
#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) {
count_t i;
124,75 → 133,119
* For each CPU, create its load balancing thread.
*/
for (i = 0; i < config.cpu_count; i++) {
 
if ((t = thread_create(kcpulb, NULL, TASK,
THREAD_FLAG_WIRED, "kcpulb", true))) {
spinlock_lock(&t->lock);
t->cpu = &cpus[i];
spinlock_unlock(&t->lock);
thread_ready(t);
thread = thread_create(kcpulb, NULL, TASK, THREAD_FLAG_WIRED, "kcpulb", true);
if (thread != NULL) {
spinlock_lock(&thread->lock);
thread->cpu = &cpus[i];
spinlock_unlock(&thread->lock);
thread_ready(thread);
} else
panic("thread_create/kcpulb\n");
 
printf("Unable to create kcpulb thread for cpu" PRIc "\n", i);
}
}
#endif /* CONFIG_SMP */
 
/*
* At this point SMP, if present, is configured.
*/
arch_post_smp_init();
 
#ifdef CONFIG_KCONSOLE
if (stdin) {
/*
* Create kernel console.
*/
thread = thread_create(kconsole_thread, NULL, TASK, 0, "kconsole", false);
if (thread != NULL)
thread_ready(thread);
else
printf("Unable to create kconsole thread\n");
}
#endif /* CONFIG_KCONSOLE */
interrupts_enable();
/*
* Create kernel console.
* Create user tasks, load RAM disk images.
*/
t = thread_create(kconsole, (void *) "kconsole", TASK, 0, "kconsole", false);
if (t)
thread_ready(t);
else
panic("thread_create/kconsole\n");
 
interrupts_enable();
 
count_t i;
program_t programs[CONFIG_INIT_TASKS];
for (i = 0; i < init.cnt; i++) {
/*
* Run user tasks, load RAM disk images.
*/
if (init.tasks[i].addr % FRAME_SIZE) {
printf("init[%d].addr is not frame aligned", i);
printf("init[%" PRIc "].addr is not frame aligned\n", i);
continue;
}
 
task_t *utask = task_run_program((void *) init.tasks[i].addr,
"uspace");
if (utask) {
/*
* Construct task name from the 'init:' prefix and the
* name stored in the init structure (if any).
*/
char namebuf[TASK_NAME_BUFLEN];
char *name;
name = init.tasks[i].name;
if (name[0] == '\0')
name = "<unknown>";
ASSERT(TASK_NAME_BUFLEN >= INIT_PREFIX_LEN);
strncpy(namebuf, INIT_PREFIX, TASK_NAME_BUFLEN);
strncpy(namebuf + INIT_PREFIX_LEN, name,
TASK_NAME_BUFLEN - INIT_PREFIX_LEN);
int rc = program_create_from_image((void *) init.tasks[i].addr,
namebuf, &programs[i]);
if ((rc == 0) && (programs[i].task != NULL)) {
/*
* Set capabilities to init userspace tasks.
*/
cap_set(utask, CAP_CAP | CAP_MEM_MANAGER |
cap_set(programs[i].task, CAP_CAP | CAP_MEM_MANAGER |
CAP_IO_MANAGER | CAP_PREEMPT_CONTROL | CAP_IRQ_REG);
if (!ipc_phone_0)
ipc_phone_0 = &utask->answerbox;
if (!ipc_phone_0)
ipc_phone_0 = &programs[i].task->answerbox;
} else if (rc == 0) {
/* It was the program loader and was registered */
} else {
int rd = init_rd((rd_header *) init.tasks[i].addr,
init.tasks[i].size);
/* RAM disk image */
int rd = init_rd((rd_header_t *) init.tasks[i].addr, init.tasks[i].size);
if (rd != RE_OK)
printf("Init binary %zd not used, error code %d.\n", i, rd);
printf("Init binary %" PRIc " not used (error %d)\n", i, rd);
}
}
 
 
/*
* Run user tasks with small delays
* to avoid intermixed klog output.
*
* TODO: This certainly does not guarantee
* anything, it just works in most of the
* cases. Some better way how to achieve
* nice klog output should be found.
*/
for (i = 0; i < init.cnt; i++) {
if (programs[i].task != NULL) {
program_ready(&programs[i]);
thread_usleep(10000);
}
}
#ifdef CONFIG_KCONSOLE
if (!stdin) {
while (1) {
thread_sleep(10);
printf("kinit: No stdin\nKernel alive: .");
unsigned int i = 0;
while (true) {
printf("\b%c", alive[i % ALIVE_CHARS]);
thread_sleep(1);
printf("kinit... ");
i++;
}
}
#endif /* CONFIG_KCONSOLE */
}
 
/** @}
/branches/dd/kernel/generic/src/main/main.c
61,6 → 61,7
#include <main/kinit.h>
#include <main/version.h>
#include <console/kconsole.h>
#include <console/console.h>
#include <cpu.h>
#include <align.h>
#include <interrupt.h>
78,9 → 79,9
#include <ipc/ipc.h>
#include <macros.h>
#include <adt/btree.h>
#include <console/klog.h>
#include <smp/smp.h>
#include <ddi/ddi.h>
#include <main/main.h>
 
/** Global configuration structure. */
config_t config;
104,18 → 105,15
* appropriate sizes and addresses.
*/
 
/**< Virtual address of where the kernel is loaded. */
/** Virtual address of where the kernel is loaded. */
uintptr_t hardcoded_load_address = 0;
/**< Size of the kernel code in bytes. */
/** Size of the kernel code in bytes. */
size_t hardcoded_ktext_size = 0;
/**< Size of the kernel data in bytes. */
/** Size of the kernel data in bytes. */
size_t hardcoded_kdata_size = 0;
/**< Lowest safe stack virtual address. */
/** Lowest safe stack virtual address. */
uintptr_t stack_safe = 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
131,9 → 129,11
 
/** Main kernel routine for bootstrap CPU.
*
* Initializes the kernel by bootstrap CPU.
* This function passes control directly to
* main_bsp_separated_stack().
* The code here still runs on the boot stack, which knows nothing about
* preemption counts. Because of that, this function cannot directly call
* functions that disable or enable preemption (e.g. spinlock_lock()). The
* primary task of this function is to calculate address of a new stack and
* switch to it.
*
* Assuming interrupts_disable().
*
186,90 → 186,97
*/
void main_bsp_separated_stack(void)
{
task_t *k;
thread_t *t;
count_t i;
/* Keep this the first thing. */
the_initialize(THE);
the_initialize(THE);
 
version_print();
LOG("\nconfig.base=%#" PRIp " config.kernel_size=%" PRIs
"\nconfig.stack_base=%#" PRIp " config.stack_size=%" PRIs,
config.base, config.kernel_size, config.stack_base,
config.stack_size);
#ifdef CONFIG_KCONSOLE
/*
* kconsole data structures must be initialized very early
* because other subsystems will register their respective
* commands.
*/
kconsole_init();
LOG_EXEC(kconsole_init());
#endif
/*
* Exception handler initialization, before architecture
* starts adding its own handlers
*/
exc_init();
 
LOG_EXEC(exc_init());
/*
* Memory management subsystems initialization.
*/
arch_pre_mm_init();
frame_init();
*/
LOG_EXEC(arch_pre_mm_init());
LOG_EXEC(frame_init());
/* Initialize at least 1 memory segment big enough for slab to work. */
slab_cache_init();
btree_init();
as_init();
page_init();
tlb_init();
ddi_init();
tasklet_init();
arch_post_mm_init();
LOG_EXEC(slab_cache_init());
LOG_EXEC(btree_init());
LOG_EXEC(as_init());
LOG_EXEC(page_init());
LOG_EXEC(tlb_init());
LOG_EXEC(ddi_init());
LOG_EXEC(tasklet_init());
LOG_EXEC(arch_post_mm_init());
LOG_EXEC(arch_pre_smp_init());
LOG_EXEC(smp_init());
version_print();
printf("kernel: %.*p hardcoded_ktext_size=%zd KB, "
"hardcoded_kdata_size=%zd KB\n", sizeof(uintptr_t) * 2,
config.base, SIZE2KB(hardcoded_ktext_size),
SIZE2KB(hardcoded_kdata_size));
printf("stack: %.*p size=%zd KB\n", sizeof(uintptr_t) * 2,
config.stack_base, SIZE2KB(config.stack_size));
arch_pre_smp_init();
smp_init();
/* Slab must be initialized after we know the number of processors. */
slab_enable_cpucache();
LOG_EXEC(slab_enable_cpucache());
printf("Detected %zu CPU(s), %llu MB free memory\n",
config.cpu_count, SIZE2MB(zone_total_size()));
cpu_init();
printf("Detected %" PRIc " CPU(s), %" PRIu64" MiB free memory\n",
config.cpu_count, SIZE2MB(zone_total_size()));
calibrate_delay_loop();
clock_counter_init();
timeout_init();
scheduler_init();
task_init();
thread_init();
futex_init();
klog_init();
LOG_EXEC(cpu_init());
LOG_EXEC(calibrate_delay_loop());
LOG_EXEC(clock_counter_init());
LOG_EXEC(timeout_init());
LOG_EXEC(scheduler_init());
LOG_EXEC(task_init());
LOG_EXEC(thread_init());
LOG_EXEC(futex_init());
if (init.cnt > 0) {
count_t i;
for (i = 0; i < init.cnt; i++)
printf("init[%zd].addr=%.*p, init[%zd].size=%zd\n", i,
sizeof(uintptr_t) * 2, init.tasks[i].addr, i,
LOG("init[%" PRIc "].addr=%#" PRIp ", init[%" PRIc
"].size=%#" PRIs "\n", i, init.tasks[i].addr, i,
init.tasks[i].size);
} else
printf("No init binaries found\n");
ipc_init();
 
LOG_EXEC(ipc_init());
LOG_EXEC(klog_init());
LOG_EXEC(console_init());
#ifdef CONFIG_KCONSOLE
LOG_EXEC(kconsole_notify_init());
#endif
/*
* Create kernel task.
*/
k = task_create(AS_KERNEL, "kernel");
if (!k)
panic("can't create kernel task\n");
task_t *kernel = task_create(AS_KERNEL, "kernel");
if (!kernel)
panic("Cannot create kernel task.");
/*
* Create the first thread.
*/
t = thread_create(kinit, NULL, k, 0, "kinit", true);
if (!t)
panic("can't create kinit thread\n");
thread_ready(t);
thread_t *kinit_thread
= thread_create(kinit, NULL, kernel, 0, "kinit", true);
if (!kinit_thread)
panic("Cannot create kinit thread.");
LOG_EXEC(thread_ready(kinit_thread));
/*
* This call to scheduler() will return to kinit,
322,6 → 329,7
* collide with another CPU coming up. To prevent this, we
* switch to this cpu's private stack prior to waking kmp up.
*/
context_save(&CPU->saved_context);
context_set(&CPU->saved_context, FADDR(main_ap_separated_stack),
(uintptr_t) CPU->stack, CPU_STACK_SIZE);
context_restore(&CPU->saved_context);
/branches/dd/kernel/generic/src/main/version.c
34,21 → 34,22
 
#include <main/version.h>
#include <print.h>
#include <macros.h>
 
char *project = "SPARTAN kernel";
char *copyright = "Copyright (c) 2001-2008 HelenOS project";
char *release = RELEASE;
char *name = NAME;
char *arch = ARCH;
char *copyright = "Copyright (c) 2001-2009 HelenOS project";
char *release = STRING(RELEASE);
char *name = STRING(NAME);
char *arch = STRING(KARCH);
 
#ifdef REVISION
char *revision = ", revision " REVISION;
char *revision = ", revision " STRING(REVISION);
#else
char *revision = "";
#endif
 
#ifdef TIMESTAMP
char *timestamp = " on " TIMESTAMP;
char *timestamp = " on " STRING(TIMESTAMP);
#else
char *timestamp = "";
#endif
/branches/dd/kernel/generic/src/main/uinit.c
46,7 → 46,9
#include <userspace.h>
#include <mm/slab.h>
#include <arch.h>
#include <udebug/udebug.h>
 
 
/** Thread used to bring up userspace thread.
*
* @param arg Pointer to structure containing userspace entry and stack
65,6 → 67,10
* deployed for the event of forceful task termination.
*/
thread_detach(THREAD);
 
#ifdef CONFIG_UDEBUG
udebug_stoppable_end();
#endif
uarg.uspace_entry = ((uspace_arg_t *) arg)->uspace_entry;
uarg.uspace_stack = ((uspace_arg_t *) arg)->uspace_stack;