diff options
Diffstat (limited to 'arch/mips')
27 files changed, 551 insertions, 1142 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 44a0224c32d..5fe195a41a8 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -8,6 +8,10 @@ mainmenu "Linux/MIPS Kernel Configuration" menu "Machine selection" +config ZONE_DMA + bool + default y + choice prompt "System type" default SGI_IP22 @@ -753,6 +757,7 @@ config TOSHIBA_JMR3927 select SWAP_IO_SPACE select SYS_HAS_CPU_TX39XX select SYS_SUPPORTS_32BIT_KERNEL + select SYS_SUPPORTS_LITTLE_ENDIAN select SYS_SUPPORTS_BIG_ENDIAN select TOSHIBA_BOARDS @@ -767,6 +772,7 @@ config TOSHIBA_RBTX4927 select SYS_HAS_CPU_TX49XX select SYS_SUPPORTS_32BIT_KERNEL select SYS_SUPPORTS_64BIT_KERNEL + select SYS_SUPPORTS_LITTLE_ENDIAN select SYS_SUPPORTS_BIG_ENDIAN select TOSHIBA_BOARDS select GENERIC_HARDIRQS_NO__DO_IRQ @@ -934,6 +940,9 @@ config CPU_LITTLE_ENDIAN endchoice +config SYS_SUPPORTS_APM_EMULATION + bool + config SYS_SUPPORTS_BIG_ENDIAN bool @@ -1001,6 +1010,7 @@ config SOC_AU1X00 bool select SYS_HAS_CPU_MIPS32_R1 select SYS_SUPPORTS_32BIT_KERNEL + select SYS_SUPPORTS_APM_EMULATION config PNX8550 bool @@ -2071,35 +2081,11 @@ config BINFMT_ELF32 bool default y if MIPS32_O32 || MIPS32_N32 -config PM - bool "Power Management support (EXPERIMENTAL)" - depends on EXPERIMENTAL && SOC_AU1X00 - -config APM - tristate "Advanced Power Management Emulation" - depends on PM - ---help--- - APM is a BIOS specification for saving power using several different - techniques. This is mostly useful for battery powered systems with - APM compliant BIOSes. If you say Y here, the system time will be - reset after a RESUME operation, the /proc/apm device will provide - battery status information, and user-space programs will receive - notification of APM "events" (e.g. battery status change). - - In order to use APM, you will need supporting software. For location - and more information, read <file:Documentation/pm.txt> and the - Battery Powered Linux mini-HOWTO, available from - <http://www.tldp.org/docs.html#howto>. - - This driver does not spin down disk drives (see the hdparm(8) - manpage ("man 8 hdparm") for that), and it doesn't turn off - VESA-compliant "green" monitors. - - Generally, if you don't have a battery in your machine, there isn't - much point in using this driver and you should say N. If you get - random kernel OOPSes or reboots that don't seem to be related to - anything, try disabling/enabling this option (or disabling/enabling - APM in your BIOS). +endmenu + +menu "Power management options" + +source "kernel/power/Kconfig" endmenu diff --git a/arch/mips/dec/Makefile b/arch/mips/dec/Makefile index ed181fdc3ac..8b790c2900d 100644 --- a/arch/mips/dec/Makefile +++ b/arch/mips/dec/Makefile @@ -6,6 +6,7 @@ obj-y := ecc-berr.o int-handler.o ioasic-irq.o kn01-berr.o \ kn02-irq.o kn02xa-berr.o reset.o setup.o time.o obj-$(CONFIG_PROM_CONSOLE) += promcon.o +obj-$(CONFIG_TC) += tc.o obj-$(CONFIG_CPU_HAS_WB) += wbflush.o EXTRA_AFLAGS := $(CFLAGS) diff --git a/arch/mips/dec/prom/identify.c b/arch/mips/dec/prom/identify.c index 81d5e878ddc..c4e3c1ea0d4 100644 --- a/arch/mips/dec/prom/identify.c +++ b/arch/mips/dec/prom/identify.c @@ -88,6 +88,7 @@ static inline void prom_init_kn02(void) { dec_kn_slot_base = KN02_SLOT_BASE; dec_kn_slot_size = KN02_SLOT_SIZE; + dec_tc_bus = 1; dec_rtc_base = (void *)CKSEG1ADDR(dec_kn_slot_base + KN02_RTC); } @@ -96,6 +97,7 @@ static inline void prom_init_kn02xa(void) { dec_kn_slot_base = KN02XA_SLOT_BASE; dec_kn_slot_size = IOASIC_SLOT_SIZE; + dec_tc_bus = 1; ioasic_base = (void *)CKSEG1ADDR(dec_kn_slot_base + IOASIC_IOCTL); dec_rtc_base = (void *)CKSEG1ADDR(dec_kn_slot_base + IOASIC_TOY); @@ -105,6 +107,7 @@ static inline void prom_init_kn03(void) { dec_kn_slot_base = KN03_SLOT_BASE; dec_kn_slot_size = IOASIC_SLOT_SIZE; + dec_tc_bus = 1; ioasic_base = (void *)CKSEG1ADDR(dec_kn_slot_base + IOASIC_IOCTL); dec_rtc_base = (void *)CKSEG1ADDR(dec_kn_slot_base + IOASIC_TOY); diff --git a/arch/mips/dec/setup.c b/arch/mips/dec/setup.c index 1058e2f409b..b8a5e75ba0a 100644 --- a/arch/mips/dec/setup.c +++ b/arch/mips/dec/setup.c @@ -53,6 +53,8 @@ unsigned long dec_kn_slot_base, dec_kn_slot_size; EXPORT_SYMBOL(dec_kn_slot_base); EXPORT_SYMBOL(dec_kn_slot_size); +int dec_tc_bus; + spinlock_t ioasic_ssr_lock; volatile u32 *ioasic_base; diff --git a/arch/mips/dec/tc.c b/arch/mips/dec/tc.c new file mode 100644 index 00000000000..732027c7983 --- /dev/null +++ b/arch/mips/dec/tc.c @@ -0,0 +1,95 @@ +/* + * TURBOchannel architecture calls. + * + * Copyright (c) Harald Koerfgen, 1998 + * Copyright (c) 2001, 2003, 2005, 2006 Maciej W. Rozycki + * Copyright (c) 2005 James Simmons + * + * 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 for more details. + */ +#include <linux/compiler.h> +#include <linux/errno.h> +#include <linux/init.h> +#include <linux/string.h> +#include <linux/tc.h> +#include <linux/types.h> + +#include <asm/addrspace.h> +#include <asm/bootinfo.h> +#include <asm/paccess.h> + +#include <asm/dec/interrupts.h> +#include <asm/dec/prom.h> +#include <asm/dec/system.h> + +/* + * Protected read byte from TURBOchannel slot space. + */ +int tc_preadb(u8 *valp, void __iomem *addr) +{ + return get_dbe(*valp, (u8 *)addr); +} + +/* + * Get TURBOchannel bus information as specified by the spec, plus + * the slot space base address and the number of slots. + */ +int __init tc_bus_get_info(struct tc_bus *tbus) +{ + if (!dec_tc_bus) + return -ENXIO; + + memcpy(&tbus->info, rex_gettcinfo(), sizeof(tbus->info)); + tbus->slot_base = CPHYSADDR((long)rex_slot_address(0)); + + switch (mips_machtype) { + case MACH_DS5000_200: + tbus->num_tcslots = 7; + break; + case MACH_DS5000_2X0: + case MACH_DS5900: + tbus->ext_slot_base = 0x20000000; + tbus->ext_slot_size = 0x20000000; + /* fall through */ + case MACH_DS5000_1XX: + tbus->num_tcslots = 3; + break; + case MACH_DS5000_XX: + tbus->num_tcslots = 2; + default: + break; + } + return 0; +} + +/* + * Get the IRQ for the specified slot. + */ +void __init tc_device_get_irq(struct tc_dev *tdev) +{ + switch (tdev->slot) { + case 0: + tdev->interrupt = dec_interrupt[DEC_IRQ_TC0]; + break; + case 1: + tdev->interrupt = dec_interrupt[DEC_IRQ_TC1]; + break; + case 2: + tdev->interrupt = dec_interrupt[DEC_IRQ_TC2]; + break; + /* + * Yuck! DS5000/200 onboard devices + */ + case 5: + tdev->interrupt = dec_interrupt[DEC_IRQ_TC5]; + break; + case 6: + tdev->interrupt = dec_interrupt[DEC_IRQ_TC6]; + break; + default: + tdev->interrupt = -1; + break; + } +} diff --git a/arch/mips/kernel/Makefile b/arch/mips/kernel/Makefile index bbbb8d7cb89..1bf2c844891 100644 --- a/arch/mips/kernel/Makefile +++ b/arch/mips/kernel/Makefile @@ -14,8 +14,6 @@ binfmt_irix-objs := irixelf.o irixinv.o irixioctl.o irixsig.o \ obj-$(CONFIG_STACKTRACE) += stacktrace.o obj-$(CONFIG_MODULES) += mips_ksyms.o module.o -obj-$(CONFIG_APM) += apm.o - obj-$(CONFIG_CPU_R3000) += r2300_fpu.o r2300_switch.o obj-$(CONFIG_CPU_TX39XX) += r2300_fpu.o r2300_switch.o obj-$(CONFIG_CPU_TX49XX) += r4k_fpu.o r4k_switch.o diff --git a/arch/mips/kernel/apm.c b/arch/mips/kernel/apm.c deleted file mode 100644 index ba16d07588c..00000000000 --- a/arch/mips/kernel/apm.c +++ /dev/null @@ -1,604 +0,0 @@ -/* - * bios-less APM driver for MIPS Linux - * Jamey Hicks <jamey@crl.dec.com> - * adapted from the APM BIOS driver for Linux by Stephen Rothwell (sfr@linuxcare.com) - * - * APM 1.2 Reference: - * Intel Corporation, Microsoft Corporation. Advanced Power Management - * (APM) BIOS Interface Specification, Revision 1.2, February 1996. - * - * [This document is available from Microsoft at: - * http://www.microsoft.com/hwdev/busbios/amp_12.htm] - */ -#include <linux/module.h> -#include <linux/poll.h> -#include <linux/timer.h> -#include <linux/slab.h> -#include <linux/proc_fs.h> -#include <linux/miscdevice.h> -#include <linux/apm_bios.h> -#include <linux/capability.h> -#include <linux/sched.h> -#include <linux/pm.h> -#include <linux/device.h> -#include <linux/kernel.h> -#include <linux/list.h> -#include <linux/init.h> -#include <linux/completion.h> - -#include <asm/apm.h> /* apm_power_info */ -#include <asm/system.h> - -/* - * The apm_bios device is one of the misc char devices. - * This is its minor number. - */ -#define APM_MINOR_DEV 134 - -/* - * See Documentation/Config.help for the configuration options. - * - * Various options can be changed at boot time as follows: - * (We allow underscores for compatibility with the modules code) - * apm=on/off enable/disable APM - */ - -/* - * Maximum number of events stored - */ -#define APM_MAX_EVENTS 16 - -struct apm_queue { - unsigned int event_head; - unsigned int event_tail; - apm_event_t events[APM_MAX_EVENTS]; -}; - -/* - * The per-file APM data - */ -struct apm_user { - struct list_head list; - - unsigned int suser: 1; - unsigned int writer: 1; - unsigned int reader: 1; - - int suspend_result; - unsigned int suspend_state; -#define SUSPEND_NONE 0 /* no suspend pending */ -#define SUSPEND_PENDING 1 /* suspend pending read */ -#define SUSPEND_READ 2 /* suspend read, pending ack */ -#define SUSPEND_ACKED 3 /* suspend acked */ -#define SUSPEND_DONE 4 /* suspend completed */ - - struct apm_queue queue; -}; - -/* - * Local variables - */ -static int suspends_pending; -static int apm_disabled; -static int mips_apm_active; - -static DECLARE_WAIT_QUEUE_HEAD(apm_waitqueue); -static DECLARE_WAIT_QUEUE_HEAD(apm_suspend_waitqueue); - -/* - * This is a list of everyone who has opened /dev/apm_bios - */ -static DECLARE_RWSEM(user_list_lock); -static LIST_HEAD(apm_user_list); - -/* - * kapmd info. kapmd provides us a process context to handle - * "APM" events within - specifically necessary if we're going - * to be suspending the system. - */ -static DECLARE_WAIT_QUEUE_HEAD(kapmd_wait); -static DECLARE_COMPLETION(kapmd_exit); -static DEFINE_SPINLOCK(kapmd_queue_lock); -static struct apm_queue kapmd_queue; - - -static const char driver_version[] = "1.13"; /* no spaces */ - - - -/* - * Compatibility cruft until the IPAQ people move over to the new - * interface. - */ -static void __apm_get_power_status(struct apm_power_info *info) -{ -} - -/* - * This allows machines to provide their own "apm get power status" function. - */ -void (*apm_get_power_status)(struct apm_power_info *) = __apm_get_power_status; -EXPORT_SYMBOL(apm_get_power_status); - - -/* - * APM event queue management. - */ -static inline int queue_empty(struct apm_queue *q) -{ - return q->event_head == q->event_tail; -} - -static inline apm_event_t queue_get_event(struct apm_queue *q) -{ - q->event_tail = (q->event_tail + 1) % APM_MAX_EVENTS; - return q->events[q->event_tail]; -} - -static void queue_add_event(struct apm_queue *q, apm_event_t event) -{ - q->event_head = (q->event_head + 1) % APM_MAX_EVENTS; - if (q->event_head == q->event_tail) { - static int notified; - - if (notified++ == 0) - printk(KERN_ERR "apm: an event queue overflowed\n"); - q->event_tail = (q->event_tail + 1) % APM_MAX_EVENTS; - } - q->events[q->event_head] = event; -} - -static void queue_event_one_user(struct apm_user *as, apm_event_t event) -{ - if (as->suser && as->writer) { - switch (event) { - case APM_SYS_SUSPEND: - case APM_USER_SUSPEND: - /* - * If this user already has a suspend pending, - * don't queue another one. - */ - if (as->suspend_state != SUSPEND_NONE) - return; - - as->suspend_state = SUSPEND_PENDING; - suspends_pending++; - break; - } - } - queue_add_event(&as->queue, event); -} - -static void queue_event(apm_event_t event, struct apm_user *sender) -{ - struct apm_user *as; - - down_read(&user_list_lock); - list_for_each_entry(as, &apm_user_list, list) { - if (as != sender && as->reader) - queue_event_one_user(as, event); - } - up_read(&user_list_lock); - wake_up_interruptible(&apm_waitqueue); -} - -static void apm_suspend(void) -{ - struct apm_user *as; - int err = pm_suspend(PM_SUSPEND_MEM); - - /* - * Anyone on the APM queues will think we're still suspended. - * Send a message so everyone knows we're now awake again. - */ - queue_event(APM_NORMAL_RESUME, NULL); - - /* - * Finally, wake up anyone who is sleeping on the suspend. - */ - down_read(&user_list_lock); - list_for_each_entry(as, &apm_user_list, list) { - as->suspend_result = err; - as->suspend_state = SUSPEND_DONE; - } - up_read(&user_list_lock); - - wake_up(&apm_suspend_waitqueue); -} - -static ssize_t apm_read(struct file *fp, char __user *buf, size_t count, loff_t *ppos) -{ - struct apm_user *as = fp->private_data; - apm_event_t event; - int i = count, ret = 0; - - if (count < sizeof(apm_event_t)) - return -EINVAL; - - if (queue_empty(&as->queue) && fp->f_flags & O_NONBLOCK) - return -EAGAIN; - - wait_event_interruptible(apm_waitqueue, !queue_empty(&as->queue)); - - while ((i >= sizeof(event)) && !queue_empty(&as->queue)) { - event = queue_get_event(&as->queue); - - ret = -EFAULT; - if (copy_to_user(buf, &event, sizeof(event))) - break; - - if (event == APM_SYS_SUSPEND || event == APM_USER_SUSPEND) - as->suspend_state = SUSPEND_READ; - - buf += sizeof(event); - i -= sizeof(event); - } - - if (i < count) - ret = count - i; - - return ret; -} - -static unsigned int apm_poll(struct file *fp, poll_table * wait) -{ - struct apm_user *as = fp->private_data; - - poll_wait(fp, &apm_waitqueue, wait); - return queue_empty(&as->queue) ? 0 : POLLIN | POLLRDNORM; -} - -/* - * apm_ioctl - handle APM ioctl - * - * APM_IOC_SUSPEND - * This IOCTL is overloaded, and performs two functions. It is used to: - * - initiate a suspend - * - acknowledge a suspend read from /dev/apm_bios. - * Only when everyone who has opened /dev/apm_bios with write permission - * has acknowledge does the actual suspend happen. - */ -static int -apm_ioctl(struct inode * inode, struct file *filp, unsigned int cmd, unsigned long arg) -{ - struct apm_user *as = filp->private_data; - unsigned long flags; - int err = -EINVAL; - - if (!as->suser || !as->writer) - return -EPERM; - - switch (cmd) { - case APM_IOC_SUSPEND: - as->suspend_result = -EINTR; - - if (as->suspend_state == SUSPEND_READ) { - /* - * If we read a suspend command from /dev/apm_bios, - * then the corresponding APM_IOC_SUSPEND ioctl is - * interpreted as an acknowledge. - */ - as->suspend_state = SUSPEND_ACKED; - suspends_pending--; - } else { - /* - * Otherwise it is a request to suspend the system. - * Queue an event for all readers, and expect an - * acknowledge from all writers who haven't already - * acknowledged. - */ - queue_event(APM_USER_SUSPEND, as); - } - - /* - * If there are no further acknowledges required, suspend - * the system. - */ - if (suspends_pending == 0) - apm_suspend(); - - /* - * Wait for the suspend/resume to complete. If there are - * pending acknowledges, we wait here for them. - * - * Note that we need to ensure that the PM subsystem does - * not kick us out of the wait when it suspends the threads. - */ - flags = current->flags; - current->flags |= PF_NOFREEZE; - - /* - * Note: do not allow a thread which is acking the suspend - * to escape until the resume is complete. - */ - if (as->suspend_state == SUSPEND_ACKED) - wait_event(apm_suspend_waitqueue, - as->suspend_state == SUSPEND_DONE); - else - wait_event_interruptible(apm_suspend_waitqueue, - as->suspend_state == SUSPEND_DONE); - - current->flags = flags; - err = as->suspend_result; - as->suspend_state = SUSPEND_NONE; - break; - } - - return err; -} - -static int apm_release(struct inode * inode, struct file * filp) -{ - struct apm_user *as = filp->private_data; - filp->private_data = NULL; - - down_write(&user_list_lock); - list_del(&as->list); - up_write(&user_list_lock); - - /* - * We are now unhooked from the chain. As far as new - * events are concerned, we no longer exist. However, we - * need to balance suspends_pending, which means the - * possibility of sleeping. - */ - if (as->suspend_state != SUSPEND_NONE) { - suspends_pending -= 1; - if (suspends_pending == 0) - apm_suspend(); - } - - kfree(as); - return 0; -} - -static int apm_open(struct inode * inode, struct file * filp) -{ - struct apm_user *as; - - as = kzalloc(sizeof(*as), GFP_KERNEL); - if (as) { - /* - * XXX - this is a tiny bit broken, when we consider BSD - * process accounting. If the device is opened by root, we - * instantly flag that we used superuser privs. Who knows, - * we might close the device immediately without doing a - * privileged operation -- cevans - */ - as->suser = capable(CAP_SYS_ADMIN); - as->writer = (filp->f_mode & FMODE_WRITE) == FMODE_WRITE; - as->reader = (filp->f_mode & FMODE_READ) == FMODE_READ; - - down_write(&user_list_lock); - list_add(&as->list, &apm_user_list); - up_write(&user_list_lock); - - filp->private_data = as; - } - - return as ? 0 : -ENOMEM; -} - -static struct file_operations apm_bios_fops = { - .owner = THIS_MODULE, - .read = apm_read, - .poll = apm_poll, - .ioctl = apm_ioctl, - .open = apm_open, - .release = apm_release, -}; - -static struct miscdevice apm_device = { - .minor = APM_MINOR_DEV, - .name = "apm_bios", - .fops = &apm_bios_fops -}; - - -#ifdef CONFIG_PROC_FS -/* - * Arguments, with symbols from linux/apm_bios.h. - * - * 0) Linux driver version (this will change if format changes) - * 1) APM BIOS Version. Usually 1.0, 1.1 or 1.2. - * 2) APM flags from APM Installation Check (0x00): - * bit 0: APM_16_BIT_SUPPORT - * bit 1: APM_32_BIT_SUPPORT - * bit 2: APM_IDLE_SLOWS_CLOCK - * bit 3: APM_BIOS_DISABLED - * bit 4: APM_BIOS_DISENGAGED - * 3) AC line status - * 0x00: Off-line - * 0x01: On-line - * 0x02: On backup power (BIOS >= 1.1 only) - * 0xff: Unknown - * 4) Battery status - * 0x00: High - * 0x01: Low - * 0x02: Critical - * 0x03: Charging - * 0x04: Selected battery not present (BIOS >= 1.2 only) - * 0xff: Unknown - * 5) Battery flag - * bit 0: High - * bit 1: Low - * bit 2: Critical - * bit 3: Charging - * bit 7: No system battery - * 0xff: Unknown - * 6) Remaining battery life (percentage of charge): - * 0-100: valid - * -1: Unknown - * 7) Remaining battery life (time units): - * Number of remaining minutes or seconds - * -1: Unknown - * 8) min = minutes; sec = seconds - */ -static int apm_get_info(char *buf, char **start, off_t fpos, int length) -{ - struct apm_power_info info; - char *units; - int ret; - - info.ac_line_status = 0xff; - info.battery_status = 0xff; - info.battery_flag = 0xff; - info.battery_life = -1; - info.time = -1; - info.units = -1; - - if (apm_get_power_status) - apm_get_power_status(&info); - - switch (info.units) { - default: units = "?"; break; - case 0: units = "min"; break; - case 1: units = "sec"; break; - } - - ret = sprintf(buf, "%s 1.2 0x%02x 0x%02x 0x%02x 0x%02x %d%% %d %s\n", - driver_version, APM_32_BIT_SUPPORT, - info.ac_line_status, info.battery_status, - info.battery_flag, info.battery_life, - info.time, units); - - return ret; -} -#endif - -static int kapmd(void *arg) -{ - daemonize("kapmd"); - current->flags |= PF_NOFREEZE; - - do { - apm_event_t event; - - wait_event_interruptible(kapmd_wait, - !queue_empty(&kapmd_queue) || !mips_apm_active); - - if (!mips_apm_active) - break; - - spin_lock_irq(&kapmd_queue_lock); - event = 0; - if (!queue_empty(&kapmd_queue)) - event = queue_get_event(&kapmd_queue); - spin_unlock_irq(&kapmd_queue_lock); - - switch (event) { - case 0: - break; - - case APM_LOW_BATTERY: - case APM_POWER_STATUS_CHANGE: - queue_event(event, NULL); - break; - - case APM_USER_SUSPEND: - case APM_SYS_SUSPEND: - queue_event(event, NULL); - if (suspends_pending == 0) - apm_suspend(); - break; - - case APM_CRITICAL_SUSPEND: - apm_suspend(); - break; - } - } while (1); - - complete_and_exit(&kapmd_exit, 0); -} - -static int __init apm_init(void) -{ - int ret; - - if (apm_disabled) { - printk(KERN_NOTICE "apm: disabled on user request.\n"); - return -ENODEV; - } - - mips_apm_active = 1; - - ret = kernel_thread(kapmd, NULL, CLONE_KERNEL); - if (ret < 0) { - mips_apm_active = 0; - return ret; - } - -#ifdef CONFIG_PROC_FS - create_proc_info_entry("apm", 0, NULL, apm_get_info); -#endif - - ret = misc_register(&apm_device); - if (ret != 0) { - remove_proc_entry("apm", NULL); - - mips_apm_active = 0; - wake_up(&kapmd_wait); - wait_for_completion(&kapmd_exit); - } - - return ret; -} - -static void __exit apm_exit(void) -{ - misc_deregister(&apm_device); - remove_proc_entry("apm", NULL); - - mips_apm_active = 0; - wake_up(&kapmd_wait); - wait_for_completion(&kapmd_exit); -} - -module_init(apm_init); -module_exit(apm_exit); - -MODULE_AUTHOR("Stephen Rothwell"); -MODULE_DESCRIPTION("Advanced Power Management"); -MODULE_LICENSE("GPL"); - -#ifndef MODULE -static int __init apm_setup(char *str) -{ - while ((str != NULL) && (*str != '\0')) { - if (strncmp(str, "off", 3) == 0) - apm_disabled = 1; - if (strncmp(str, "on", 2) == 0) - apm_disabled = 0; - str = strchr(str, ','); - if (str != NULL) - str += strspn(str, ", \t"); - } - return 1; -} - -__setup("apm=", apm_setup); -#endif - -/** - * apm_queue_event - queue an APM event for kapmd - * @event: APM event - * - * Queue an APM event for kapmd to process and ultimately take the - * appropriate action. Only a subset of events are handled: - * %APM_LOW_BATTERY - * %APM_POWER_STATUS_CHANGE - * %APM_USER_SUSPEND - * %APM_SYS_SUSPEND - * %APM_CRITICAL_SUSPEND - */ -void apm_queue_event(apm_event_t event) -{ - unsigned long flags; - - spin_lock_irqsave(&kapmd_queue_lock, flags); - queue_add_event(&kapmd_queue, event); - spin_unlock_irqrestore(&kapmd_queue_lock, flags); - - wake_up_interruptible(&kapmd_wait); -} -EXPORT_SYMBOL(apm_queue_event); diff --git a/arch/mips/kernel/asm-offsets.c b/arch/mips/kernel/asm-offsets.c index ea7df4b8da3..c0b089d4718 100644 --- a/arch/mips/kernel/asm-offsets.c +++ b/arch/mips/kernel/asm-offsets.c @@ -249,7 +249,6 @@ void output_sc_defines(void) offset("#define SC_MDHI ", struct sigcontext, sc_mdhi); offset("#define SC_MDLO ", struct sigcontext, sc_mdlo); offset("#define SC_PC ", struct sigcontext, sc_pc); - offset("#define SC_STATUS ", struct sigcontext, sc_status); offset("#define SC_FPC_CSR ", struct sigcontext, sc_fpc_csr); offset("#define SC_FPC_EIR ", struct sigcontext, sc_fpc_eir); offset("#define SC_HI1 ", struct sigcontext, sc_hi1); diff --git a/arch/mips/kernel/linux32.c b/arch/mips/kernel/linux32.c index 0b8ce59429a..ca7ad78f4de 100644 --- a/arch/mips/kernel/linux32.c +++ b/arch/mips/kernel/linux32.c @@ -193,50 +193,6 @@ sysn32_waitid(int which, compat_pid_t pid, return ret; } -struct sysinfo32 { - s32 uptime; - u32 loads[3]; - u32 totalram; - u32 freeram; - u32 sharedram; - u32 bufferram; - u32 totalswap; - u32 freeswap; - u16 procs; - u32 totalhigh; - u32 freehigh; - u32 mem_unit; - char _f[8]; -}; - -asmlinkage int sys32_sysinfo(struct sysinfo32 __user *info) -{ - struct sysinfo s; - int ret, err; - mm_segment_t old_fs = get_fs (); - - set_fs (KERNEL_DS); - ret = sys_sysinfo((struct sysinfo __user *)&s); - set_fs (old_fs); - err = put_user (s.uptime, &info->uptime); - err |= __put_user (s.loads[0], &info->loads[0]); - err |= __put_user (s.loads[1], &info->loads[1]); - err |= __put_user (s.loads[2], &info->loads[2]); - err |= __put_user (s.totalram, &info->totalram); - err |= __put_user (s.freeram, &info->freeram); - err |= __put_user (s.sharedram, &info->sharedram); - err |= __put_user (s.bufferram, &info->bufferram); - err |= __put_user (s.totalswap, &info->totalswap); - err |= __put_user (s.freeswap, &info->freeswap); - err |= __put_user (s.procs, &info->procs); - err |= __put_user (s.totalhigh, &info->totalhigh); - err |= __put_user (s.freehigh, &info->freehigh); - err |= __put_user (s.mem_unit, &info->mem_unit); - if (err) - return -EFAULT; - return ret; -} - #define RLIM_INFINITY32 0x7fffffff #define RESOURCE32(x) ((x > RLIM_INFINITY32) ? RLIM_INFINITY32 : x) diff --git a/arch/mips/kernel/mips-mt.c b/arch/mips/kernel/mips-mt.c index a32f6797353..ba01800b601 100644 --- a/arch/mips/kernel/mips-mt.c +++ b/arch/mips/kernel/mips-mt.c @@ -3,9 +3,11 @@ * Copyright (C) 2005 Mips Technologies, Inc */ +#include <linux/device.h> #include <linux/kernel.h> #include <linux/sched.h> #include <linux/cpumask.h> +#include <linux/module.h> #include <linux/interrupt.h> #include <linux/security.h> @@ -453,3 +455,20 @@ void mt_cflush_release(void) #endif /* CONFIG_MIPS_MT_SMTC */ /* FILL IN VSMP and AP/SP VERSIONS HERE */ } + +struct class *mt_class; + +static int __init mt_init(void) +{ + struct class *mtc; + + mtc = class_create(THIS_MODULE, "mt"); + if (IS_ERR(mtc)) + return PTR_ERR(mtc); + + mt_class = mtc; + + return 0; +} + +subsys_initcall(mt_init); diff --git a/arch/mips/kernel/rtlx.c b/arch/mips/kernel/rtlx.c index 8610f4a925e..d92c48e0d7a 100644 --- a/arch/mips/kernel/rtlx.c +++ b/arch/mips/kernel/rtlx.c @@ -17,6 +17,7 @@ * */ +#include <linux/device.h> #include <linux/kernel.h> #include <linux/module.h> #include <linux/fs.h> @@ -34,6 +35,7 @@ #include <linux/sched.h> #include <linux/wait.h> #include <asm/mipsmtregs.h> +#include <asm/mips_mt.h> #include <asm/cacheflush.h> #include <asm/atomic.h> #include <asm/cpu.h> @@ -476,7 +478,7 @@ static ssize_t file_write(struct file *file, const char __user * buffer, return rtlx_write(minor, (void *)buffer, count, 1); } -static struct file_operations rtlx_fops = { +static const struct file_operations rtlx_fops = { .owner = THIS_MODULE, .open = file_open, .release = file_release, @@ -498,7 +500,8 @@ static char register_chrdev_failed[] __initdata = static int rtlx_module_init(void) { - int i; + struct device *dev; + int i, err; major = register_chrdev(0, module_name, &rtlx_fops); if (major < 0) { @@ -511,6 +514,13 @@ static int rtlx_module_init(void) init_waitqueue_head(&channel_wqs[i].rt_queue); init_waitqueue_head(&channel_wqs[i].lx_queue); channel_wqs[i].in_open = 0; + + dev = device_create(mt_class, NULL, MKDEV(major, i), + "%s%d", module_name, i); + if (IS_ERR(dev)) { + err = PTR_ERR(dev); + goto out_chrdev; + } } /* set up notifiers */ @@ -525,10 +535,21 @@ static int rtlx_module_init(void) setup_irq(rtlx_irq_num, &rtlx_irq); return 0; + +out_chrdev: + for (i = 0; i < RTLX_CHANNELS; i++) + device_destroy(mt_class, MKDEV(major, i)); + + return err; } static void __exit rtlx_module_exit(void) { + int i; + + for (i = 0; i < RTLX_CHANNELS; i++) + device_destroy(mt_class, MKDEV(major, i)); + unregister_chrdev(major, module_name); } diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S index 39add2341aa..ee8802b5975 100644 --- a/arch/mips/kernel/scall64-n32.S +++ b/arch/mips/kernel/scall64-n32.S @@ -217,7 +217,7 @@ EXPORT(sysn32_call_table) PTR sys32_gettimeofday PTR compat_sys_getrlimit /* 6095 */ PTR compat_sys_getrusage - PTR sys32_sysinfo + PTR compat_sys_sysinfo PTR compat_sys_times PTR sys32_ptrace PTR sys_getuid /* 6100 */ diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S index c58b8e0105e..c5f590ca99b 100644 --- a/arch/mips/kernel/scall64-o32.S +++ b/arch/mips/kernel/scall64-o32.S @@ -321,7 +321,7 @@ sys_call_table: PTR sys_ni_syscall /* sys_vm86 */ PTR compat_sys_wait4 PTR sys_swapoff /* 4115 */ - PTR sys32_sysinfo + PTR compat_sys_sysinfo PTR sys32_ipc PTR sys_fsync PTR sys32_sigreturn diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c index d2e01e7167b..394540fad76 100644 --- a/arch/mips/kernel/setup.c +++ b/arch/mips/kernel/setup.c @@ -452,7 +452,7 @@ static void __init arch_mem_init(char **cmdline_p) print_memory_map(); strlcpy(command_line, arcs_cmdline, sizeof(command_line)); - strlcpy(saved_command_line, command_line, COMMAND_LINE_SIZE); + strlcpy(boot_command_line, command_line, COMMAND_LINE_SIZE); *cmdline_p = command_line; diff --git a/arch/mips/kernel/signal-common.h b/arch/mips/kernel/signal-common.h index b1f09d54ebe..9a8abd67ec5 100644 --- a/arch/mips/kernel/signal-common.h +++ b/arch/mips/kernel/signal-common.h @@ -8,169 +8,57 @@ * Copyright (C) 1999, 2000 Silicon Graphics, Inc. */ +#ifndef __SIGNAL_COMMON_H +#define __SIGNAL_COMMON_H -static inline int -setup_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc) -{ - int err = 0; +/* #define DEBUG_SIG */ - err |= __put_user(regs->cp0_epc, &sc->sc_pc); +#ifdef DEBUG_SIG +# define DEBUGP(fmt, args...) printk("%s: " fmt, __FUNCTION__ , ##args) +#else +# define DEBUGP(fmt, args...) +#endif -#define save_gp_reg(i) do { \ - err |= __put_user(regs->regs[i], &sc->sc_regs[i]); \ -} while(0) - __put_user(0, &sc->sc_regs[0]); save_gp_reg(1); save_gp_reg(2); - save_gp_reg(3); save_gp_reg(4); save_gp_reg(5); save_gp_reg(6); - save_gp_reg(7); save_gp_reg(8); save_gp_reg(9); save_gp_reg(10); - save_gp_reg(11); save_gp_reg(12); save_gp_reg(13); save_gp_reg(14); - save_gp_reg(15); save_gp_reg(16); save_gp_reg(17); save_gp_reg(18); - save_gp_reg(19); save_gp_reg(20); save_gp_reg(21); save_gp_reg(22); - save_gp_reg(23); save_gp_reg(24); save_gp_reg(25); save_gp_reg(26); - save_gp_reg(27); save_gp_reg(28); save_gp_reg(29); save_gp_reg(30); - save_gp_reg(31); -#undef save_gp_reg - - err |= __put_user(regs->hi, &sc->sc_mdhi); - err |= __put_user(regs->lo, &sc->sc_mdlo); - if (cpu_has_dsp) { - err |= __put_user(mfhi1(), &sc->sc_hi1); - err |= __put_user(mflo1(), &sc->sc_lo1); - err |= __put_user(mfhi2(), &sc->sc_hi2); - err |= __put_user(mflo2(), &sc->sc_lo2); - err |= __put_user(mfhi3(), &sc->sc_hi3); - err |= __put_user(mflo3(), &sc->sc_lo3); - err |= __put_user(rddsp(DSP_MASK), &sc->sc_dsp); - } - - err |= __put_user(!!used_math(), &sc->sc_used_math); - - if (!used_math()) - goto out; - - /* - * Save FPU state to signal context. Signal handler will "inherit" - * current FPU state. - */ - preempt_disable(); - - if (!is_fpu_owner()) { - own_fpu(); - restore_fp(current); - } - err |= save_fp_context(sc); - - preempt_enable(); - -out: - return err; -} - -static inline int -restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc) -{ - unsigned int used_math; - unsigned long treg; - int err = 0; - - /* Always make any pending restarted system calls return -EINTR */ - current_thread_info()->restart_block.fn = do_no_restart_syscall; - - err |= __get_user(regs->cp0_epc, &sc->sc_pc); - err |= __get_user(regs->hi, &sc->sc_mdhi); - err |= __get_user(regs->lo, &sc->sc_mdlo); - if (cpu_has_dsp) { - err |= __get_user(treg, &sc->sc_hi1); mthi1(treg); - err |= __get_user(treg, &sc->sc_lo1); mtlo1(treg); - err |= __get_user(treg, &sc->sc_hi2); mthi2(treg); - err |= __get_user(treg, &sc->sc_lo2); mtlo2(treg); - err |= __get_user(treg, &sc->sc_hi3); mthi3(treg); - err |= __get_user(treg, &sc->sc_lo3); mtlo3(treg); - err |= __get_user(treg, &sc->sc_dsp); wrdsp(treg, DSP_MASK); - } - -#define restore_gp_reg(i) do { \ - err |= __get_user(regs->regs[i], &sc->sc_regs[i]); \ -} while(0) - restore_gp_reg( 1); restore_gp_reg( 2); restore_gp_reg( 3); - restore_gp_reg( 4); restore_gp_reg( 5); restore_gp_reg( 6); - restore_gp_reg( 7); restore_gp_reg( 8); restore_gp_reg( 9); - restore_gp_reg(10); restore_gp_reg(11); restore_gp_reg(12); - restore_gp_reg(13); restore_gp_reg(14); restore_gp_reg(15); - restore_gp_reg(16); restore_gp_reg(17); restore_gp_reg(18); - restore_gp_reg(19); restore_gp_reg(20); restore_gp_reg(21); - restore_gp_reg(22); restore_gp_reg(23); restore_gp_reg(24); - restore_gp_reg(25); restore_gp_reg(26); restore_gp_reg(27); - restore_gp_reg(28); restore_gp_reg(29); restore_gp_reg(30); - restore_gp_reg(31); -#undef restore_gp_reg +/* + * Horribly complicated - with the bloody RM9000 workarounds enabled + * the signal trampolines is moving to the end of the structure so we can + * increase the alignment without breaking software compatibility. + */ +#if ICACHE_REFILLS_WORKAROUND_WAR == 0 - err |= __get_user(used_math, &sc->sc_used_math); - conditional_used_math(used_math); +struct sigframe { + u32 sf_ass[4]; /* argument save space for o32 */ + u32 sf_code[2]; /* signal trampoline */ + struct sigcontext sf_sc; + sigset_t sf_mask; +}; - preempt_disable(); +#else /* ICACHE_REFILLS_WORKAROUND_WAR */ - if (used_math()) { - /* restore fpu context if we have used it before */ - own_fpu(); - err |= restore_fp_context(sc); - } else { - /* signal handler may have used FPU. Give it up. */ - lose_fpu(); - } +struct sigframe { + u32 sf_ass[4]; /* argument save space for o32 */ + u32 sf_pad[2]; + struct sigcontext sf_sc; /* hw context */ + sigset_t sf_mask; + u32 sf_code[8] ____cacheline_aligned; /* signal trampoline */ +}; - preempt_enable(); +#endif /* !ICACHE_REFILLS_WORKAROUND_WAR */ - return err; -} +/* + * handle hardware context + */ +extern int setup_sigcontext(struct pt_regs *, struct sigcontext __user *); +extern int restore_sigcontext(struct pt_regs *, struct sigcontext __user *); /* * Determine which stack to use.. */ -static inline void __user * -get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, size_t frame_size) -{ - unsigned long sp; - - /* Default to using normal stack */ - sp = regs->regs[29]; - - /* - * FPU emulator may have it's own trampoline active just - * above the user stack, 16-bytes before the next lowest - * 16 byte boundary. Try to avoid trashing it. - */ - sp -= 32; - - /* This is the X/Open sanctioned signal stack switching. */ - if ((ka->sa.sa_flags & SA_ONSTACK) && (sas_ss_flags (sp) == 0)) - sp = current->sas_ss_sp + current->sas_ss_size; - - return (void __user *)((sp - frame_size) & (ICACHE_REFILLS_WORKAROUND_WAR ? ~(cpu_icache_line_size()-1) : ALMASK)); -} - -static inline int install_sigtramp(unsigned int __user *tramp, - unsigned int syscall) -{ - int err; - - /* - * Set up the return code ... - * - * li v0, __NR__foo_sigreturn - * syscall - */ - - err = __put_user(0x24020000 + syscall, tramp + 0); - err |= __put_user(0x0000000c , tramp + 1); - if (ICACHE_REFILLS_WORKAROUND_WAR) { - err |= __put_user(0, tramp + 2); - err |= __put_user(0, tramp + 3); - err |= __put_user(0, tramp + 4); - err |= __put_user(0, tramp + 5); - err |= __put_user(0, tramp + 6); - err |= __put_user(0, tramp + 7); - } - flush_cache_sigtramp((unsigned long) tramp); +extern void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, + size_t frame_size); +/* + * install trampoline code to get back from the sig handler + */ +extern int install_sigtramp(unsigned int __user *tramp, unsigned int syscall); - return err; -} +#endif /* __SIGNAL_COMMON_H */ diff --git a/arch/mips/kernel/signal.c b/arch/mips/kernel/signal.c index 9a44053cd9f..54398af2371 100644 --- a/arch/mips/kernel/signal.c +++ b/arch/mips/kernel/signal.c @@ -34,18 +34,174 @@ #include "signal-common.h" -#define DEBUG_SIG 0 - #define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) +#if ICACHE_REFILLS_WORKAROUND_WAR == 0 + +struct rt_sigframe { + u32 rs_ass[4]; /* argument save space for o32 */ + u32 rs_code[2]; /* signal trampoline */ + struct siginfo rs_info; + struct ucontext rs_uc; +}; + +#else + +struct rt_sigframe { + u32 rs_ass[4]; /* argument save space for o32 */ + u32 rs_pad[2]; + struct siginfo rs_info; + struct ucontext rs_uc; + u32 rs_code[8] ____cacheline_aligned; /* signal trampoline */ +}; + +#endif + +/* + * Helper routines + */ +int setup_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc) +{ + int err = 0; + int i; + + err |= __put_user(regs->cp0_epc, &sc->sc_pc); + + err |= __put_user(0, &sc->sc_regs[0]); + for (i = 1; i < 32; i++) + err |= __put_user(regs->regs[i], &sc->sc_regs[i]); + + err |= __put_user(regs->hi, &sc->sc_mdhi); + err |= __put_user(regs->lo, &sc->sc_mdlo); + if (cpu_has_dsp) { + err |= __put_user(mfhi1(), &sc->sc_hi1); + err |= __put_user(mflo1(), &sc->sc_lo1); + err |= __put_user(mfhi2(), &sc->sc_hi2); + err |= __put_user(mflo2(), &sc->sc_lo2); + err |= __put_user(mfhi3(), &sc->sc_hi3); + err |= __put_user(mflo3(), &sc->sc_lo3); + err |= __put_user(rddsp(DSP_MASK), &sc->sc_dsp); + } + + err |= __put_user(!!used_math(), &sc->sc_used_math); + + if (used_math()) { + /* + * Save FPU state to signal context. Signal handler + * will "inherit" current FPU state. + */ + preempt_disable(); + + if (!is_fpu_owner()) { + own_fpu(); + restore_fp(current); + } + err |= save_fp_context(sc); + + preempt_enable(); + } + return err; +} + +int restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc) +{ + unsigned int used_math; + unsigned long treg; + int err = 0; + int i; + + /* Always make any pending restarted system calls return -EINTR */ + current_thread_info()->restart_block.fn = do_no_restart_syscall; + + err |= __get_user(regs->cp0_epc, &sc->sc_pc); + err |= __get_user(regs->hi, &sc->sc_mdhi); + err |= __get_user(regs->lo, &sc->sc_mdlo); + if (cpu_has_dsp) { + err |= __get_user(treg, &sc->sc_hi1); mthi1(treg); + err |= __get_user(treg, &sc->sc_lo1); mtlo1(treg); + err |= __get_user(treg, &sc->sc_hi2); mthi2(treg); + err |= __get_user(treg, &sc->sc_lo2); mtlo2(treg); + err |= __get_user(treg, &sc->sc_hi3); mthi3(treg); + err |= __get_user(treg, &sc->sc_lo3); mtlo3(treg); + err |= __get_user(treg, &sc->sc_dsp); wrdsp(treg, DSP_MASK); + } + + for (i = 1; i < 32; i++) + err |= __get_user(regs->regs[i], &sc->sc_regs[i]); + + err |= __get_user(used_math, &sc->sc_used_math); + conditional_used_math(used_math); + + preempt_disable(); + + if (used_math()) { + /* restore fpu context if we have used it before */ + own_fpu(); + err |= restore_fp_context(sc); + } else { + /* signal handler may have used FPU. Give it up. */ + lose_fpu(); + } + + preempt_enable(); + + return err; +} + +void __user *get_sigframe(struct k_sigaction *ka, struct pt_regs *regs, + size_t frame_size) +{ + unsigned long sp; + + /* Default to using normal stack */ + sp = regs->regs[29]; + + /* + * FPU emulator may have it's own trampoline active just + * above the user stack, 16-bytes before the next lowest + * 16 byte boundary. Try to avoid trashing it. + */ + sp -= 32; + + /* This is the X/Open sanctioned signal stack switching. */ + if ((ka->sa.sa_flags & SA_ONSTACK) && (sas_ss_flags (sp) == 0)) + sp = current->sas_ss_sp + current->sas_ss_size; + + return (void __user *)((sp - frame_size) & (ICACHE_REFILLS_WORKAROUND_WAR ? ~(cpu_icache_line_size()-1) : ALMASK)); +} + +int install_sigtramp(unsigned int __user *tramp, unsigned int syscall) +{ + int err; + + /* + * Set up the return code ... + * + * li v0, __NR__foo_sigreturn + * syscall + */ + + err = __put_user(0x24020000 + syscall, tramp + 0); + err |= __put_user(0x0000000c , tramp + 1); + if (ICACHE_REFILLS_WORKAROUND_WAR) { + err |= __put_user(0, tramp + 2); + err |= __put_user(0, tramp + 3); + err |= __put_user(0, tramp + 4); + err |= __put_user(0, tramp + 5); + err |= __put_user(0, tramp + 6); + err |= __put_user(0, tramp + 7); + } + flush_cache_sigtramp((unsigned long) tramp); + + return err; +} + /* * Atomically swap in the new signal mask, and wait for a signal. */ #ifdef CONFIG_TRAD_SIGNALS -save_static_function(sys_sigsuspend); -__attribute_used__ noinline static int -_sys_sigsuspend(nabi_no_regargs struct pt_regs regs) +asmlinkage int sys_sigsuspend(nabi_no_regargs struct pt_regs regs) { sigset_t newset; sigset_t __user *uset; @@ -68,9 +224,7 @@ _sys_sigsuspend(nabi_no_regargs struct pt_regs regs) } #endif -save_static_function(sys_rt_sigsuspend); -__attribute_used__ noinline static int -_sys_rt_sigsuspend(nabi_no_regargs struct pt_regs regs) +asmlinkage int sys_rt_sigsuspend(nabi_no_regargs struct pt_regs regs) { sigset_t newset; sigset_t __user *unewset; @@ -148,45 +302,8 @@ asmlinkage int sys_sigaltstack(nabi_no_regargs struct pt_regs regs) return do_sigaltstack(uss, uoss, usp); } -/* - * Horribly complicated - with the bloody RM9000 workarounds enabled - * the signal trampolines is moving to the end of the structure so we can - * increase the alignment without breaking software compatibility. - */ #ifdef CONFIG_TRAD_SIGNALS -struct sigframe { - u32 sf_ass[4]; /* argument save space for o32 */ -#if ICACHE_REFILLS_WORKAROUND_WAR - u32 sf_pad[2]; -#else - u32 sf_code[2]; /* signal trampoline */ -#endif - struct sigcontext sf_sc; - sigset_t sf_mask; -#if ICACHE_REFILLS_WORKAROUND_WAR - u32 sf_code[8] ____cacheline_aligned; /* signal trampoline */ -#endif -}; -#endif - -struct rt_sigframe { - u32 rs_ass[4]; /* argument save space for o32 */ -#if ICACHE_REFILLS_WORKAROUND_WAR - u32 rs_pad[2]; -#else - u32 rs_code[2]; /* signal trampoline */ -#endif - struct siginfo rs_info; - struct ucontext rs_uc; -#if ICACHE_REFILLS_WORKAROUND_WAR - u32 rs_code[8] ____cacheline_aligned; /* signal trampoline */ -#endif -}; - -#ifdef CONFIG_TRAD_SIGNALS -save_static_function(sys_sigreturn); -__attribute_used__ noinline static void -_sys_sigreturn(nabi_no_regargs struct pt_regs regs) +asmlinkage void sys_sigreturn(nabi_no_regargs struct pt_regs regs) { struct sigframe __user *frame; sigset_t blocked; @@ -221,9 +338,7 @@ badframe: } #endif /* CONFIG_TRAD_SIGNALS */ -save_static_function(sys_rt_sigreturn); -__attribute_used__ noinline static void -_sys_rt_sigreturn(nabi_no_regargs struct pt_regs regs) +asmlinkage void sys_rt_sigreturn(nabi_no_regargs struct pt_regs regs) { struct rt_sigframe __user *frame; sigset_t set; @@ -275,7 +390,7 @@ int setup_frame(struct k_sigaction * ka, struct pt_regs *regs, if (!access_ok(VERIFY_WRITE, frame, sizeof (*frame))) goto give_sigsegv; - install_sigtramp(frame->sf_code, __NR_sigreturn); + err |= install_sigtramp(frame->sf_code, __NR_sigreturn); err |= setup_sigcontext(regs, &frame->sf_sc); err |= __copy_to_user(&frame->sf_mask, set, sizeof(*set)); @@ -299,11 +414,9 @@ int setup_frame(struct k_sigaction * ka, struct pt_regs *regs, regs->regs[31] = (unsigned long) frame->sf_code; regs->cp0_epc = regs->regs[25] = (unsigned long) ka->sa.sa_handler; -#if DEBUG_SIG - printk("SIG deliver (%s:%d): sp=0x%p pc=0x%lx ra=0x%p\n", + DEBUGP("SIG deliver (%s:%d): sp=0x%p pc=0x%lx ra=0x%lx\n", current->comm, current->pid, - frame, regs->cp0_epc, frame->regs[31]); -#endif + frame, regs->cp0_epc, regs->regs[31]); return 0; give_sigsegv: @@ -322,7 +435,7 @@ int setup_rt_frame(struct k_sigaction * ka, struct pt_regs *regs, if (!access_ok(VERIFY_WRITE, frame, sizeof (*frame))) goto give_sigsegv; - install_sigtramp(frame->rs_code, __NR_rt_sigreturn); + err |= install_sigtramp(frame->rs_code, __NR_rt_sigreturn); /* Create siginfo. */ err |= copy_siginfo_to_user(&frame->rs_info, info); @@ -359,11 +472,10 @@ int setup_rt_frame(struct k_sigaction * ka, struct pt_regs *regs, regs->regs[31] = (unsigned long) frame->rs_code; regs->cp0_epc = regs->regs[25] = (unsigned long) ka->sa.sa_handler; -#if DEBUG_SIG - printk("SIG deliver (%s:%d): sp=0x%p pc=0x%lx ra=0x%p\n", + DEBUGP("SIG deliver (%s:%d): sp=0x%p pc=0x%lx ra=0x%lx\n", current->comm, current->pid, frame, regs->cp0_epc, regs->regs[31]); -#endif + return 0; give_sigsegv: @@ -371,7 +483,7 @@ give_sigsegv: return -EFAULT; } -static inline int handle_signal(unsigned long sig, siginfo_t *info, +static int handle_signal(unsigned long sig, siginfo_t *info, struct k_sigaction *ka, sigset_t *oldset, struct pt_regs *regs) { int ret; diff --git a/arch/mips/kernel/signal32.c b/arch/mips/kernel/signal32.c index c86a5ddff05..183fc7e55f3 100644 --- a/arch/mips/kernel/signal32.c +++ b/arch/mips/kernel/signal32.c @@ -33,6 +33,8 @@ #include <asm/fpu.h> #include <asm/war.h> +#include "signal-common.h" + #define SI_PAD_SIZE32 ((SI_MAX_SIZE/sizeof(int)) - 3) typedef struct compat_siginfo { @@ -102,8 +104,6 @@ typedef struct compat_siginfo { #define __NR_O32_rt_sigreturn 4193 #define __NR_O32_restart_syscall 4253 -#define DEBUG_SIG 0 - #define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) /* 32-bit compatibility types */ @@ -139,6 +139,123 @@ struct ucontext32 { sigset_t32 uc_sigmask; /* mask last for extensibility */ }; +#if ICACHE_REFILLS_WORKAROUND_WAR == 0 + +struct rt_sigframe32 { + u32 rs_ass[4]; /* argument save space for o32 */ + u32 rs_code[2]; /* signal trampoline */ + compat_siginfo_t rs_info; + struct ucontext32 rs_uc; +}; + +#else /* ICACHE_REFILLS_WORKAROUND_WAR */ + +struct rt_sigframe32 { + u32 rs_ass[4]; /* argument save space for o32 */ + u32 rs_pad[2]; + compat_siginfo_t rs_info; + struct ucontext32 rs_uc; + u32 rs_code[8] __attribute__((aligned(32))); /* signal trampoline */ +}; + +#endif /* !ICACHE_REFILLS_WORKAROUND_WAR */ + +/* + * sigcontext handlers + */ +static int setup_sigcontext32(struct pt_regs *regs, + struct sigcontext32 __user *sc) +{ + int err = 0; + int i; + + err |= __put_user(regs->cp0_epc, &sc->sc_pc); + + err |= __put_user(0, &sc->sc_regs[0]); + for (i = 1; i < 32; i++) + err |= __put_user(regs->regs[i], &sc->sc_regs[i]); + + err |= __put_user(regs->hi, &sc->sc_mdhi); + err |= __put_user(regs->lo, &sc->sc_mdlo); + if (cpu_has_dsp) { + err |= __put_user(rddsp(DSP_MASK), &sc->sc_dsp); + err |= __put_user(mfhi1(), &sc->sc_hi1); + err |= __put_user(mflo1(), &sc->sc_lo1); + err |= __put_user(mfhi2(), &sc->sc_hi2); + err |= __put_user(mflo2(), &sc->sc_lo2); + err |= __put_user(mfhi3(), &sc->sc_hi3); + err |= __put_user(mflo3(), &sc->sc_lo3); + } + + err |= __put_user(!!used_math(), &sc->sc_used_math); + + if (used_math()) { + /* + * Save FPU state to signal context. Signal handler + * will "inherit" current FPU state. + */ + preempt_disable(); + + if (!is_fpu_owner()) { + own_fpu(); + restore_fp(current); + } + err |= save_fp_context32(sc); + + preempt_enable(); + } + return err; +} + +static int restore_sigcontext32(struct pt_regs *regs, + struct sigcontext32 __user *sc) +{ + u32 used_math; + int err = 0; + s32 treg; + int i; + + /* Always make any pending restarted system calls return -EINTR */ + current_thread_info()->restart_block.fn = do_no_restart_syscall; + + err |= __get_user(regs->cp0_epc, &sc->sc_pc); + err |= __get_user(regs->hi, &sc->sc_mdhi); + err |= __get_user(regs->lo, &sc->sc_mdlo); + if (cpu_has_dsp) { + err |= __get_user(treg, &sc->sc_hi1); mthi1(treg); + err |= __get_user(treg, &sc->sc_lo1); mtlo1(treg); + err |= __get_user(treg, &sc->sc_hi2); mthi2(treg); + err |= __get_user(treg, &sc->sc_lo2); mtlo2(treg); + err |= __get_user(treg, &sc->sc_hi3); mthi3(treg); + err |= __get_user(treg, &sc->sc_lo3); mtlo3(treg); + err |= __get_user(treg, &sc->sc_dsp); wrdsp(treg, DSP_MASK); + } + + for (i = 1; i < 32; i++) + err |= __get_user(regs->regs[i], &sc->sc_regs[i]); + + err |= __get_user(used_math, &sc->sc_used_math); + conditional_used_math(used_math); + + preempt_disable(); + + if (used_math()) { + /* restore fpu context if we have used it before */ + own_fpu(); + err |= restore_fp_context32(sc); + } else { + /* signal handler may have used FPU. Give it up. */ + lose_fpu(); + } + + preempt_enable(); + + return err; +} + +/* + * + */ extern void __put_sigset_unknown_nsig(void); extern void __get_sigset_unknown_nsig(void); @@ -191,9 +308,7 @@ static inline int get_sigset(sigset_t *kbuf, const compat_sigset_t __user *ubuf) * Atomically swap in the new signal mask, and wait for a signal. */ -save_static_function(sys32_sigsuspend); -__attribute_used__ noinline static int -_sys32_sigsuspend(nabi_no_regargs struct pt_regs regs) +asmlinkage int sys32_sigsuspend(nabi_no_regargs struct pt_regs regs) { compat_sigset_t __user *uset; sigset_t newset; @@ -215,9 +330,7 @@ _sys32_sigsuspend(nabi_no_regargs struct pt_regs regs) return -ERESTARTNOHAND; } -save_static_function(sys32_rt_sigsuspend); -__attribute_used__ noinline static int -_sys32_rt_sigsuspend(nabi_no_regargs struct pt_regs regs) +asmlinkage int sys32_rt_sigsuspend(nabi_no_regargs struct pt_regs regs) { compat_sigset_t __user *uset; sigset_t newset; @@ -326,91 +439,6 @@ asmlinkage int sys32_sigaltstack(nabi_no_regargs struct pt_regs regs) return ret; } -static int restore_sigcontext32(struct pt_regs *regs, struct sigcontext32 __user *sc) -{ - u32 used_math; - int err = 0; - s32 treg; - - /* Always make any pending restarted system calls return -EINTR */ - current_thread_info()->restart_block.fn = do_no_restart_syscall; - - err |= __get_user(regs->cp0_epc, &sc->sc_pc); - err |= __get_user(regs->hi, &sc->sc_mdhi); - err |= __get_user(regs->lo, &sc->sc_mdlo); - if (cpu_has_dsp) { - err |= __get_user(treg, &sc->sc_hi1); mthi1(treg); - err |= __get_user(treg, &sc->sc_lo1); mtlo1(treg); - err |= __get_user(treg, &sc->sc_hi2); mthi2(treg); - err |= __get_user(treg, &sc->sc_lo2); mtlo2(treg); - err |= __get_user(treg, &sc->sc_hi3); mthi3(treg); - err |= __get_user(treg, &sc->sc_lo3); mtlo3(treg); - err |= __get_user(treg, &sc->sc_dsp); wrdsp(treg, DSP_MASK); - } - -#define restore_gp_reg(i) do { \ - err |= __get_user(regs->regs[i], &sc->sc_regs[i]); \ -} while(0) - restore_gp_reg( 1); restore_gp_reg( 2); restore_gp_reg( 3); - restore_gp_reg( 4); restore_gp_reg( 5); restore_gp_reg( 6); - restore_gp_reg( 7); restore_gp_reg( 8); restore_gp_reg( 9); - restore_gp_reg(10); restore_gp_reg(11); restore_gp_reg(12); - restore_gp_reg(13); restore_gp_reg(14); restore_gp_reg(15); - restore_gp_reg(16); restore_gp_reg(17); restore_gp_reg(18); - restore_gp_reg(19); restore_gp_reg(20); restore_gp_reg(21); - restore_gp_reg(22); restore_gp_reg(23); restore_gp_reg(24); - restore_gp_reg(25); restore_gp_reg(26); restore_gp_reg(27); - restore_gp_reg(28); restore_gp_reg(29); restore_gp_reg(30); - restore_gp_reg(31); -#undef restore_gp_reg - - err |= __get_user(used_math, &sc->sc_used_math); - conditional_used_math(used_math); - - preempt_disable(); - - if (used_math()) { - /* restore fpu context if we have used it before */ - own_fpu(); - err |= restore_fp_context32(sc); - } else { - /* signal handler may have used FPU. Give it up. */ - lose_fpu(); - } - - preempt_enable(); - - return err; -} - -struct sigframe { - u32 sf_ass[4]; /* argument save space for o32 */ -#if ICACHE_REFILLS_WORKAROUND_WAR - u32 sf_pad[2]; -#else - u32 sf_code[2]; /* signal trampoline */ -#endif - struct sigcontext32 sf_sc; - sigset_t sf_mask; -#if ICACHE_REFILLS_WORKAROUND_WAR - u32 sf_code[8] ____cacheline_aligned; /* signal trampoline */ -#endif -}; - -struct rt_sigframe32 { - u32 rs_ass[4]; /* argument save space for o32 */ -#if ICACHE_REFILLS_WORKAROUND_WAR - u32 rs_pad[2]; -#else - u32 rs_code[2]; /* signal trampoline */ -#endif - compat_siginfo_t rs_info; - struct ucontext32 rs_uc; -#if ICACHE_REFILLS_WORKAROUND_WAR - u32 rs_code[8] __attribute__((aligned(32))); /* signal trampoline */ -#endif -}; - int copy_siginfo_to_user32(compat_siginfo_t __user *to, siginfo_t *from) { int err; @@ -463,9 +491,7 @@ int copy_siginfo_to_user32(compat_siginfo_t __user *to, siginfo_t *from) return err; } -save_static_function(sys32_sigreturn); -__attribute_used__ noinline static void -_sys32_sigreturn(nabi_no_regargs struct pt_regs regs) +asmlinkage void sys32_sigreturn(nabi_no_regargs struct pt_regs regs) { struct sigframe __user *frame; sigset_t blocked; @@ -499,9 +525,7 @@ badframe: force_sig(SIGSEGV, current); } -save_static_function(sys32_rt_sigreturn); -__attribute_used__ noinline static void -_sys32_rt_sigreturn(nabi_no_regargs struct pt_regs regs) +asmlinkage void sys32_rt_sigreturn(nabi_no_regargs struct pt_regs regs) { struct rt_sigframe32 __user *frame; mm_segment_t old_fs; @@ -554,89 +578,6 @@ badframe: force_sig(SIGSEGV, current); } -static inline int setup_sigcontext32(struct pt_regs *regs, - struct sigcontext32 __user *sc) -{ - int err = 0; - - err |= __put_user(regs->cp0_epc, &sc->sc_pc); - err |= __put_user(regs->cp0_status, &sc->sc_status); - -#define save_gp_reg(i) { \ - err |= __put_user(regs->regs[i], &sc->sc_regs[i]); \ -} while(0) - __put_user(0, &sc->sc_regs[0]); save_gp_reg(1); save_gp_reg(2); - save_gp_reg(3); save_gp_reg(4); save_gp_reg(5); save_gp_reg(6); - save_gp_reg(7); save_gp_reg(8); save_gp_reg(9); save_gp_reg(10); - save_gp_reg(11); save_gp_reg(12); save_gp_reg(13); save_gp_reg(14); - save_gp_reg(15); save_gp_reg(16); save_gp_reg(17); save_gp_reg(18); - save_gp_reg(19); save_gp_reg(20); save_gp_reg(21); save_gp_reg(22); - save_gp_reg(23); save_gp_reg(24); save_gp_reg(25); save_gp_reg(26); - save_gp_reg(27); save_gp_reg(28); save_gp_reg(29); save_gp_reg(30); - save_gp_reg(31); -#undef save_gp_reg - - err |= __put_user(regs->hi, &sc->sc_mdhi); - err |= __put_user(regs->lo, &sc->sc_mdlo); - if (cpu_has_dsp) { - err |= __put_user(rddsp(DSP_MASK), &sc->sc_dsp); - err |= __put_user(mfhi1(), &sc->sc_hi1); - err |= __put_user(mflo1(), &sc->sc_lo1); - err |= __put_user(mfhi2(), &sc->sc_hi2); - err |= __put_user(mflo2(), &sc->sc_lo2); - err |= __put_user(mfhi3(), &sc->sc_hi3); - err |= __put_user(mflo3(), &sc->sc_lo3); - } - - err |= __put_user(!!used_math(), &sc->sc_used_math); - - if (!used_math()) - goto out; - - /* - * Save FPU state to signal context. Signal handler will "inherit" - * current FPU state. - */ - preempt_disable(); - - if (!is_fpu_owner()) { - own_fpu(); - restore_fp(current); - } - err |= save_fp_context32(sc); - - preempt_enable(); - -out: - return err; -} - -/* - * Determine which stack to use.. - */ -static inline void __user *get_sigframe(struct k_sigaction *ka, - struct pt_regs *regs, - size_t frame_size) -{ - unsigned long sp; - - /* Default to using normal stack */ - sp = regs->regs[29]; - - /* - * FPU emulator may have it's own trampoline active just - * above the user stack, 16-bytes before the next lowest - * 16 byte boundary. Try to avoid trashing it. - */ - sp -= 32; - - /* This is the X/Open sanctioned signal stack switching. */ - if ((ka->sa.sa_flags & SA_ONSTACK) && (sas_ss_flags (sp) == 0)) - sp = current->sas_ss_sp + current->sas_ss_size; - - return (void __user *)((sp - frame_size) & ALMASK); -} - int setup_frame_32(struct k_sigaction * ka, struct pt_regs *regs, int signr, sigset_t *set) { @@ -647,15 +588,7 @@ int setup_frame_32(struct k_sigaction * ka, struct pt_regs *regs, if (!access_ok(VERIFY_WRITE, frame, sizeof (*frame))) goto give_sigsegv; - /* - * Set up the return code ... - * - * li v0, __NR_O32_sigreturn - * syscall - */ - err |= __put_user(0x24020000 + __NR_O32_sigreturn, frame->sf_code + 0); - err |= __put_user(0x0000000c , frame->sf_code + 1); - flush_cache_sigtramp((unsigned long) frame->sf_code); + err |= install_sigtramp(frame->sf_code, __NR_O32_sigreturn); err |= setup_sigcontext32(regs, &frame->sf_sc); err |= __copy_to_user(&frame->sf_mask, set, sizeof(*set)); @@ -679,11 +612,10 @@ int setup_frame_32(struct k_sigaction * ka, struct pt_regs *regs, regs->regs[31] = (unsigned long) frame->sf_code; regs->cp0_epc = regs->regs[25] = (unsigned long) ka->sa.sa_handler; -#if DEBUG_SIG - printk("SIG deliver (%s:%d): sp=0x%p pc=0x%lx ra=0x%p\n", + DEBUGP("SIG deliver (%s:%d): sp=0x%p pc=0x%lx ra=0x%lx\n", current->comm, current->pid, - frame, regs->cp0_epc, frame->sf_code); -#endif + frame, regs->cp0_epc, regs->regs[31]); + return 0; give_sigsegv: @@ -702,17 +634,7 @@ int setup_rt_frame_32(struct k_sigaction * ka, struct pt_regs *regs, if (!access_ok(VERIFY_WRITE, frame, sizeof (*frame))) goto give_sigsegv; - /* Set up to return from userspace. If provided, use a stub already - in userspace. */ - /* - * Set up the return code ... - * - * li v0, __NR_O32_rt_sigreturn - * syscall - */ - err |= __put_user(0x24020000 + __NR_O32_rt_sigreturn, frame->rs_code + 0); - err |= __put_user(0x0000000c , frame->rs_code + 1); - flush_cache_sigtramp((unsigned long) frame->rs_code); + err |= install_sigtramp(frame->rs_code, __NR_O32_rt_sigreturn); /* Convert (siginfo_t -> compat_siginfo_t) and copy to user. */ err |= copy_siginfo_to_user32(&frame->rs_info, info); @@ -750,11 +672,10 @@ int setup_rt_frame_32(struct k_sigaction * ka, struct pt_regs *regs, regs->regs[31] = (unsigned long) frame->rs_code; regs->cp0_epc = regs->regs[25] = (unsigned long) ka->sa.sa_handler; -#if DEBUG_SIG - printk("SIG deliver (%s:%d): sp=0x%p pc=0x%lx ra=0x%p\n", + DEBUGP("SIG deliver (%s:%d): sp=0x%p pc=0x%lx ra=0x%lx\n", current->comm, current->pid, - frame, regs->cp0_epc, frame->rs_code); -#endif + frame, regs->cp0_epc, regs->regs[31]); + return 0; give_sigsegv: diff --git a/arch/mips/kernel/signal_n32.c b/arch/mips/kernel/signal_n32.c index b28646b3cea..57456e6a0c6 100644 --- a/arch/mips/kernel/signal_n32.c +++ b/arch/mips/kernel/signal_n32.c @@ -47,8 +47,6 @@ #define __NR_N32_rt_sigreturn 6211 #define __NR_N32_restart_syscall 6214 -#define DEBUG_SIG 0 - #define _BLOCKABLE (~(sigmask(SIGKILL) | sigmask(SIGSTOP))) /* IRIX compatible stack_t */ @@ -66,25 +64,30 @@ struct ucontextn32 { sigset_t uc_sigmask; /* mask last for extensibility */ }; +#if ICACHE_REFILLS_WORKAROUND_WAR == 0 + struct rt_sigframe_n32 { u32 rs_ass[4]; /* argument save space for o32 */ -#if ICACHE_REFILLS_WORKAROUND_WAR - u32 rs_pad[2]; -#else u32 rs_code[2]; /* signal trampoline */ -#endif struct siginfo rs_info; struct ucontextn32 rs_uc; -#if ICACHE_REFILLS_WORKAROUND_WAR +}; + +#else /* ICACHE_REFILLS_WORKAROUND_WAR */ + +struct rt_sigframe_n32 { + u32 rs_ass[4]; /* argument save space for o32 */ + u32 rs_pad[2]; + struct siginfo rs_info; + struct ucontextn32 rs_uc; u32 rs_code[8] ____cacheline_aligned; /* signal trampoline */ -#endif }; +#endif /* !ICACHE_REFILLS_WORKAROUND_WAR */ + extern void sigset_from_compat (sigset_t *set, compat_sigset_t *compat); -save_static_function(sysn32_rt_sigsuspend); -__attribute_used__ noinline static int -_sysn32_rt_sigsuspend(nabi_no_regargs struct pt_regs regs) +asmlinkage int sysn32_rt_sigsuspend(nabi_no_regargs struct pt_regs regs) { compat_sigset_t __user *unewset; compat_sigset_t uset; @@ -114,9 +117,7 @@ _sysn32_rt_sigsuspend(nabi_no_regargs struct pt_regs regs) return -ERESTARTNOHAND; } -save_static_function(sysn32_rt_sigreturn); -__attribute_used__ noinline static void -_sysn32_rt_sigreturn(nabi_no_regargs struct pt_regs regs) +asmlinkage void sysn32_rt_sigreturn(nabi_no_regargs struct pt_regs regs) { struct rt_sigframe_n32 __user *frame; sigset_t set; @@ -214,11 +215,10 @@ int setup_rt_frame_n32(struct k_sigaction * ka, regs->regs[31] = (unsigned long) frame->rs_code; regs->cp0_epc = regs->regs[25] = (unsigned long) ka->sa.sa_handler; -#if DEBUG_SIG - printk("SIG deliver (%s:%d): sp=0x%p pc=0x%lx ra=0x%p\n", + DEBUGP("SIG deliver (%s:%d): sp=0x%p pc=0x%lx ra=0x%lx\n", current->comm, current->pid, frame, regs->cp0_epc, regs->regs[31]); -#endif + return 0; give_sigsegv: diff --git a/arch/mips/kernel/time.c b/arch/mips/kernel/time.c index 8aa544f73a5..545fcbc8cea 100644 --- a/arch/mips/kernel/time.c +++ b/arch/mips/kernel/time.c @@ -455,8 +455,3 @@ EXPORT_SYMBOL(rtc_lock); EXPORT_SYMBOL(to_tm); EXPORT_SYMBOL(rtc_mips_set_time); EXPORT_SYMBOL(rtc_mips_get_time); - -unsigned long long sched_clock(void) -{ - return (unsigned long long)jiffies*(1000000000/HZ); -} diff --git a/arch/mips/kernel/vmlinux.lds.S b/arch/mips/kernel/vmlinux.lds.S index cecff24cc97..c76b793310c 100644 --- a/arch/mips/kernel/vmlinux.lds.S +++ b/arch/mips/kernel/vmlinux.lds.S @@ -113,10 +113,12 @@ SECTIONS references from .rodata */ .exit.text : { *(.exit.text) } .exit.data : { *(.exit.data) } +#if defined(CONFIG_BLK_DEV_INITRD) . = ALIGN(_PAGE_SIZE); __initramfs_start = .; .init.ramfs : { *(.init.ramfs) } __initramfs_end = .; +#endif . = ALIGN(32); __per_cpu_start = .; .data.percpu : { *(.data.percpu) } diff --git a/arch/mips/kernel/vpe.c b/arch/mips/kernel/vpe.c index 459624969c9..9aca871a307 100644 --- a/arch/mips/kernel/vpe.c +++ b/arch/mips/kernel/vpe.c @@ -29,6 +29,7 @@ */ #include <linux/kernel.h> +#include <linux/device.h> #include <linux/module.h> #include <linux/fs.h> #include <linux/init.h> @@ -48,6 +49,7 @@ #include <asm/cacheflush.h> #include <asm/atomic.h> #include <asm/cpu.h> +#include <asm/mips_mt.h> #include <asm/processor.h> #include <asm/system.h> #include <asm/vpe.h> @@ -64,6 +66,7 @@ typedef void *vpe_handle; static char module_name[] = "vpe"; static int major; +static const int minor = 1; /* fixed for now */ #ifdef CONFIG_MIPS_APSP_KSPD static struct kspd_notifications kspd_events; @@ -1205,7 +1208,7 @@ static ssize_t vpe_write(struct file *file, const char __user * buffer, return ret; } -static struct file_operations vpe_fops = { +static const struct file_operations vpe_fops = { .owner = THIS_MODULE, .open = vpe_open, .release = vpe_release, @@ -1365,12 +1368,15 @@ static void kspd_sp_exit( int sp_id) } #endif +static struct device *vpe_dev; + static int __init vpe_module_init(void) { struct vpe *v = NULL; + struct device *dev; struct tc *t; unsigned long val; - int i; + int i, err; if (!cpu_has_mipsmt) { printk("VPE loader: not a MIPS MT capable processor\n"); @@ -1383,6 +1389,14 @@ static int __init vpe_module_init(void) return major; } + dev = device_create(mt_class, NULL, MKDEV(major, minor), + "tc%d", minor); + if (IS_ERR(dev)) { + err = PTR_ERR(dev); + goto out_chrdev; + } + vpe_dev = dev; + dmt(); dvpe(); @@ -1478,6 +1492,11 @@ static int __init vpe_module_init(void) kspd_events.kspd_sp_exit = kspd_sp_exit; #endif return 0; + +out_chrdev: + unregister_chrdev(major, module_name); + + return err; } static void __exit vpe_module_exit(void) @@ -1490,6 +1509,7 @@ static void __exit vpe_module_exit(void) } } + device_destroy(mt_class, MKDEV(major, minor)); unregister_chrdev(major, module_name); } diff --git a/arch/mips/mm/cache.c b/arch/mips/mm/cache.c index 1f954a238a6..31819c58bff 100644 --- a/arch/mips/mm/cache.c +++ b/arch/mips/mm/cache.c @@ -107,8 +107,6 @@ void __update_cache(struct vm_area_struct *vma, unsigned long address, } } -#define __weak __attribute__((weak)) - static char cache_panic[] __initdata = "Yeee, unsupported cache architecture."; void __init cpu_cache_init(void) diff --git a/arch/mips/momentum/jaguar_atx/platform.c b/arch/mips/momentum/jaguar_atx/platform.c index 035ea5137c7..81037709ba0 100644 --- a/arch/mips/momentum/jaguar_atx/platform.c +++ b/arch/mips/momentum/jaguar_atx/platform.c @@ -129,7 +129,7 @@ static struct mv643xx_eth_platform_data eth2_pd = { static struct platform_device eth2_device = { .name = MV643XX_ETH_NAME, - .id = 1, + .id = 2, .num_resources = ARRAY_SIZE(mv64x60_eth2_resources), .resource = mv64x60_eth2_resources, .dev = { diff --git a/arch/mips/momentum/ocelot_3/platform.c b/arch/mips/momentum/ocelot_3/platform.c index eefe5841fbb..57cfe5c6e4a 100644 --- a/arch/mips/momentum/ocelot_3/platform.c +++ b/arch/mips/momentum/ocelot_3/platform.c @@ -129,7 +129,7 @@ static struct mv643xx_eth_platform_data eth2_pd = { static struct platform_device eth2_device = { .name = MV643XX_ETH_NAME, - .id = 1, + .id = 2, .num_resources = ARRAY_SIZE(mv64x60_eth2_resources), .resource = mv64x60_eth2_resources, .dev = { diff --git a/arch/mips/philips/pnx8550/common/proc.c b/arch/mips/philips/pnx8550/common/proc.c index 72a016767e0..3f097558ef1 100644 --- a/arch/mips/philips/pnx8550/common/proc.c +++ b/arch/mips/philips/pnx8550/common/proc.c @@ -79,10 +79,7 @@ static int pnx8550_proc_init( void ) // Create /proc/pnx8550 pnx8550_dir = create_proc_entry("pnx8550", S_IFDIR|S_IRUGO, NULL); - if (pnx8550_dir){ - pnx8550_dir->nlink = 1; - } - else { + if (!pnx8550_dir) { printk(KERN_ERR "Can't create pnx8550 proc dir\n"); return -1; } @@ -90,7 +87,6 @@ static int pnx8550_proc_init( void ) // Create /proc/pnx8550/timers pnx8550_timers = create_proc_entry("timers", S_IFREG|S_IRUGO, pnx8550_dir ); if (pnx8550_timers){ - pnx8550_timers->nlink = 1; pnx8550_timers->read_proc = pnx8550_timers_read; } else { @@ -100,7 +96,6 @@ static int pnx8550_proc_init( void ) // Create /proc/pnx8550/registers pnx8550_registers = create_proc_entry("registers", S_IFREG|S_IRUGO, pnx8550_dir ); if (pnx8550_registers){ - pnx8550_registers->nlink = 1; pnx8550_registers->read_proc = pnx8550_registers_read; } else { diff --git a/arch/mips/sibyte/sb1250/bcm1250_tbprof.c b/arch/mips/sibyte/sb1250/bcm1250_tbprof.c index d1a906e683b..212547c5731 100644 --- a/arch/mips/sibyte/sb1250/bcm1250_tbprof.c +++ b/arch/mips/sibyte/sb1250/bcm1250_tbprof.c @@ -374,7 +374,7 @@ static long sbprof_tb_ioctl(struct file *filp, return error; } -static struct file_operations sbprof_tb_fops = { +static const struct file_operations sbprof_tb_fops = { .owner = THIS_MODULE, .open = sbprof_tb_open, .release = sbprof_tb_release, diff --git a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c index 735cb8778f4..7316a78fdd6 100644 --- a/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c +++ b/arch/mips/tx4927/toshiba_rbtx4927/toshiba_rbtx4927_setup.c @@ -137,6 +137,8 @@ int tx4927_using_backplane = 0; extern void gt64120_time_init(void); extern void toshiba_rbtx4927_irq_setup(void); +char *prom_getcmdline(void); + #ifdef CONFIG_PCI #define CONFIG_TX4927BUG_WORKAROUND #undef TX4927_SUPPORT_COMMAND_IO |