| Author | Tokens | Token Proportion | Commits | Commit Proportion |
|---|---|---|---|---|
| Matthew Wilcox | 246 | 26.48% | 5 | 13.89% |
| Linus Torvalds (pre-git) | 208 | 22.39% | 1 | 2.78% |
| Helge Deller | 194 | 20.88% | 10 | 27.78% |
| Al Viro | 106 | 11.41% | 4 | 11.11% |
| Kyle McMartin | 94 | 10.12% | 4 | 11.11% |
| Sergey Senozhatsky | 37 | 3.98% | 1 | 2.78% |
| Carlos O'Donell Jr | 17 | 1.83% | 1 | 2.78% |
| Ingo Molnar | 9 | 0.97% | 3 | 8.33% |
| Alex Dowad | 4 | 0.43% | 1 | 2.78% |
| Alexey Dobriyan | 3 | 0.32% | 1 | 2.78% |
| Tejun Heo | 3 | 0.32% | 1 | 2.78% |
| Frédéric Weisbecker | 3 | 0.32% | 1 | 2.78% |
| Arnaldo Carvalho de Melo | 3 | 0.32% | 1 | 2.78% |
| Thomas Gleixner | 1 | 0.11% | 1 | 2.78% |
| Sam Ravnborg | 1 | 0.11% | 1 | 2.78% |
| Total | 929 | 36 |
/* * PARISC Architecture-dependent parts of process handling * based on the work for i386 * * Copyright (C) 1999-2003 Matthew Wilcox <willy at parisc-linux.org> * Copyright (C) 2000 Martin K Petersen <mkp at mkp.net> * Copyright (C) 2000 John Marvin <jsm at parisc-linux.org> * Copyright (C) 2000 David Huggins-Daines <dhd with pobox.org> * Copyright (C) 2000-2003 Paul Bame <bame at parisc-linux.org> * Copyright (C) 2000 Philipp Rumpf <prumpf with tux.org> * Copyright (C) 2000 David Kennedy <dkennedy with linuxcare.com> * Copyright (C) 2000 Richard Hirst <rhirst with parisc-linux.org> * Copyright (C) 2000 Grant Grundler <grundler with parisc-linux.org> * Copyright (C) 2001 Alan Modra <amodra at parisc-linux.org> * Copyright (C) 2001-2002 Ryan Bradetich <rbrad at parisc-linux.org> * Copyright (C) 2001-2014 Helge Deller <deller@gmx.de> * Copyright (C) 2002 Randolph Chung <tausq with parisc-linux.org> * * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 2 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ #include <stdarg.h> #include <linux/elf.h> #include <linux/errno.h> #include <linux/kernel.h> #include <linux/mm.h> #include <linux/fs.h> #include <linux/cpu.h> #include <linux/module.h> #include <linux/personality.h> #include <linux/ptrace.h> #include <linux/sched.h> #include <linux/sched/debug.h> #include <linux/sched/task.h> #include <linux/sched/task_stack.h> #include <linux/slab.h> #include <linux/stddef.h> #include <linux/unistd.h> #include <linux/kallsyms.h> #include <linux/uaccess.h> #include <linux/rcupdate.h> #include <linux/random.h> #include <linux/nmi.h> #include <asm/io.h> #include <asm/asm-offsets.h> #include <asm/assembly.h> #include <asm/pdc.h> #include <asm/pdc_chassis.h> #include <asm/pgalloc.h> #include <asm/unwind.h> #include <asm/sections.h> #define COMMAND_GLOBAL F_EXTEND(0xfffe0030) #define CMD_RESET 5 /* reset any module */ /* ** The Wright Brothers and Gecko systems have a H/W problem ** (Lasi...'nuf said) may cause a broadcast reset to lockup ** the system. An HVERSION dependent PDC call was developed ** to perform a "safe", platform specific broadcast reset instead ** of kludging up all the code. ** ** Older machines which do not implement PDC_BROADCAST_RESET will ** return (with an error) and the regular broadcast reset can be ** issued. Obviously, if the PDC does implement PDC_BROADCAST_RESET ** the PDC call will not return (the system will be reset). */ void machine_restart(char *cmd) { #ifdef FASTBOOT_SELFTEST_SUPPORT /* ** If user has modified the Firmware Selftest Bitmap, ** run the tests specified in the bitmap after the ** system is rebooted w/PDC_DO_RESET. ** ** ftc_bitmap = 0x1AUL "Skip destructive memory tests" ** ** Using "directed resets" at each processor with the MEM_TOC ** vector cleared will also avoid running destructive ** memory self tests. (Not implemented yet) */ if (ftc_bitmap) { pdc_do_firm_test_reset(ftc_bitmap); } #endif /* set up a new led state on systems shipped with a LED State panel */ pdc_chassis_send_status(PDC_CHASSIS_DIRECT_SHUTDOWN); /* "Normal" system reset */ pdc_do_reset(); /* Nope...box should reset with just CMD_RESET now */ gsc_writel(CMD_RESET, COMMAND_GLOBAL); /* Wait for RESET to lay us to rest. */ while (1) ; } void (*chassis_power_off)(void); /* * This routine is called from sys_reboot to actually turn off the * machine */ void machine_power_off(void) { /* If there is a registered power off handler, call it. */ if (chassis_power_off) chassis_power_off(); /* Put the soft power button back under hardware control. * If the user had already pressed the power button, the * following call will immediately power off. */ pdc_soft_power_button(0); pdc_chassis_send_status(PDC_CHASSIS_DIRECT_SHUTDOWN); /* ipmi_poweroff may have been installed. */ if (pm_power_off) pm_power_off(); /* It seems we have no way to power the system off via * software. The user has to press the button himself. */ printk(KERN_EMERG "System shut down completed.\n" "Please power this system off now."); /* prevent soft lockup/stalled CPU messages for endless loop. */ rcu_sysrq_start(); lockup_detector_soft_poweroff(); for (;;); } void (*pm_power_off)(void); EXPORT_SYMBOL(pm_power_off); void machine_halt(void) { machine_power_off(); } void flush_thread(void) { /* Only needs to handle fpu stuff or perf monitors. ** REVISIT: several arches implement a "lazy fpu state". */ } void release_thread(struct task_struct *dead_task) { } /* * Fill in the FPU structure for a core dump. */ int dump_fpu (struct pt_regs * regs, elf_fpregset_t *r) { if (regs == NULL) return 0; memcpy(r, regs->fr, sizeof *r); return 1; } int dump_task_fpu (struct task_struct *tsk, elf_fpregset_t *r) { memcpy(r, tsk->thread.regs.fr, sizeof(*r)); return 1; } /* * Idle thread support * * Detect when running on QEMU with SeaBIOS PDC Firmware and let * QEMU idle the host too. */ int running_on_qemu __read_mostly; void __cpuidle arch_cpu_idle_dead(void) { /* nop on real hardware, qemu will offline CPU. */ asm volatile("or %%r31,%%r31,%%r31\n":::); } void __cpuidle arch_cpu_idle(void) { local_irq_enable(); /* nop on real hardware, qemu will idle sleep. */ asm volatile("or %%r10,%%r10,%%r10\n":::); } static int __init parisc_idle_init(void) { const char *marker; /* check QEMU/SeaBIOS marker in PAGE0 */ marker = (char *) &PAGE0->pad0; running_on_qemu = (memcmp(marker, "SeaBIOS", 8) == 0); if (!running_on_qemu) cpu_idle_poll_ctrl(1); return 0; } arch_initcall(parisc_idle_init); /* * Copy architecture-specific thread state */ int copy_thread(unsigned long clone_flags, unsigned long usp, unsigned long kthread_arg, struct task_struct *p) { struct pt_regs *cregs = &(p->thread.regs); void *stack = task_stack_page(p); /* We have to use void * instead of a function pointer, because * function pointers aren't a pointer to the function on 64-bit. * Make them const so the compiler knows they live in .text */ extern void * const ret_from_kernel_thread; extern void * const child_return; if (unlikely(p->flags & PF_KTHREAD)) { /* kernel thread */ memset(cregs, 0, sizeof(struct pt_regs)); if (!usp) /* idle thread */ return 0; /* Must exit via ret_from_kernel_thread in order * to call schedule_tail() */ cregs->ksp = (unsigned long)stack + THREAD_SZ_ALGN + FRAME_SIZE; cregs->kpc = (unsigned long) &ret_from_kernel_thread; /* * Copy function and argument to be called from * ret_from_kernel_thread. */ #ifdef CONFIG_64BIT cregs->gr[27] = ((unsigned long *)usp)[3]; cregs->gr[26] = ((unsigned long *)usp)[2]; #else cregs->gr[26] = usp; #endif cregs->gr[25] = kthread_arg; } else { /* user thread */ /* usp must be word aligned. This also prevents users from * passing in the value 1 (which is the signal for a special * return for a kernel thread) */ if (usp) { usp = ALIGN(usp, 4); if (likely(usp)) cregs->gr[30] = usp; } cregs->ksp = (unsigned long)stack + THREAD_SZ_ALGN + FRAME_SIZE; cregs->kpc = (unsigned long) &child_return; /* Setup thread TLS area from the 4th parameter in clone */ if (clone_flags & CLONE_SETTLS) cregs->cr27 = cregs->gr[23]; } return 0; } unsigned long get_wchan(struct task_struct *p) { struct unwind_frame_info info; unsigned long ip; int count = 0; if (!p || p == current || p->state == TASK_RUNNING) return 0; /* * These bracket the sleeping functions.. */ unwind_frame_init_from_blocked_task(&info, p); do { if (unwind_once(&info) < 0) return 0; ip = info.ip; if (!in_sched_functions(ip)) return ip; } while (count++ < MAX_UNWIND_ENTRIES); return 0; } #ifdef CONFIG_64BIT void *dereference_function_descriptor(void *ptr) { Elf64_Fdesc *desc = ptr; void *p; if (!probe_kernel_address(&desc->addr, p)) ptr = p; return ptr; } void *dereference_kernel_function_descriptor(void *ptr) { if (ptr < (void *)__start_opd || ptr >= (void *)__end_opd) return ptr; return dereference_function_descriptor(ptr); } #endif static inline unsigned long brk_rnd(void) { return (get_random_int() & BRK_RND_MASK) << PAGE_SHIFT; } unsigned long arch_randomize_brk(struct mm_struct *mm) { unsigned long ret = PAGE_ALIGN(mm->brk + brk_rnd()); if (ret < mm->brk) return mm->brk; return ret; }