diff options
| author | Ralf Baechle <ralf@linux-mips.org> | 1999-12-04 03:58:56 +0000 |
|---|---|---|
| committer | Ralf Baechle <ralf@linux-mips.org> | 1999-12-04 03:58:56 +0000 |
| commit | 1d67e90f19a7acfd9a05dc59678e7d0c5090bd0d (patch) | |
| tree | 357efc7b93f8f5102110d20d293f41360ec212fc /arch/mips/kernel/process.c | |
| parent | aea27b2e18d69af87e673972246e66657b4fa274 (diff) | |
Merge with Linux 2.3.21.
Diffstat (limited to 'arch/mips/kernel/process.c')
| -rw-r--r-- | arch/mips/kernel/process.c | 46 |
1 files changed, 14 insertions, 32 deletions
diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c index ffd9fd990..f0c346b61 100644 --- a/arch/mips/kernel/process.c +++ b/arch/mips/kernel/process.c @@ -1,4 +1,4 @@ -/* $Id: process.c,v 1.15 1999/09/28 22:25:47 ralf Exp $ +/* $Id: process.c,v 1.16 1999/10/09 00:00:58 ralf Exp $ * * This file is subject to the terms and conditions of the GNU General Public * License. See the file "COPYING" in the main directory of this archive @@ -31,45 +31,27 @@ #include <asm/elf.h> #include <asm/isadep.h> -asmlinkage int cpu_idle(void) +void cpu_idle(void) { - unsigned long start_idle = 0; - - if (current->pid != 0) - return -EPERM; - /* endless idle loop with no priority at all */ current->priority = 0; - current->counter = 0; - for (;;) { - /* - * R4[36]00 have wait, R4[04]00 don't. - * FIXME: We should save power by reducing the clock where - * possible. Thiss will cut down the power consuption - * of R4200 systems to about 1/16th of normal, the - * same for logic clocked with the processor generated - * clocks. - */ - if (!start_idle) { - check_pgt_cache(); - start_idle = jiffies; - } - if (wait_available && !current->need_resched) - __asm__(".set\tmips3\n\t" - "wait\n\t" - ".set\tmips0"); - run_task_queue(&tq_scheduler); - if (current->need_resched) - start_idle = 0; + current->counter = -100; + init_idle(); + + while (1) { + while (!current->need_resched) + if (wait_available) + __asm__(".set\tmips3\n\t" + "wait\n\t" + ".set\tmips0"); schedule(); + check_pgt_cache(); } - - return 0; } struct task_struct *last_task_used_math = NULL; -asmlinkage void ret_from_sys_call(void); +asmlinkage void ret_from_fork(void); void exit_thread(void) { @@ -127,7 +109,7 @@ int copy_thread(int nr, unsigned long clone_flags, unsigned long usp, p->thread.current_ds = USER_DS; } p->thread.reg29 = (unsigned long) childregs; - p->thread.reg31 = (unsigned long) ret_from_sys_call; + p->thread.reg31 = (unsigned long) ret_from_fork; /* * New tasks loose permission to use the fpu. This accelerates context |