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1/7 [
Author: Thomas Gleixner
Email: tglx@linutronix.de
Subject: mips: sibyte: Add missing irq_mask function
Date: Sat, 23 Jul 2011 11:41:22 +0000
Crashes on free_irq() otherwise.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
]
2/7 [
Author: Thomas Gleixner
Email: tglx@linutronix.de
Subject: mips: ftrace: Fix the CONFIG_DYNAMIC_FTRACE=n compile
Date: Sat, 23 Jul 2011 11:41:23 +0000
arch/mips/kernel/ftrace.c: In function ‘ftrace_get_parent_ra_addr’:
arch/mips/kernel/ftrace.c:212: error: implicit declaration of function ‘in_kernel_space’
arch/mips/kernel/ftrace.c: In function ‘prepare_ftrace_return’:
arch/mips/kernel/ftrace.c:314: error: ‘MCOUNT_OFFSET_INSNS’ undeclared (first use in this function)
arch/mips/kernel/ftrace.c:314: error: (Each undeclared identifier is reported only once
arch/mips/kernel/ftrace.c:314: error: for each function it appears in.)
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
]
3/7 [
Author: Thomas Gleixner
Email: tglx@linutronix.de
Subject: mips: Enable interrupts in do_signal()
Date: Sat, 23 Jul 2011 11:41:23 +0000
do_signal() does __put_user() which can fault, resulting in a
might_sleep() warning in down_read(&mm->mmap_sem) and a "scheduling
while atomic" warning when mmap_sem is contented. On swarm this also
results in:
WARNING: at kernel/smp.c:459 smp_call_function_many+0x148/0x398()
Modules linked in:
Call Trace:
[<ffffffff804b48a4>] dump_stack+0x1c/0x50
[<ffffffff8013dc94>] warn_slowpath_common+0x8c/0xc8
[<ffffffff8013dcfc>] warn_slowpath_null+0x2c/0x40
[<ffffffff801864a0>] smp_call_function_many+0x148/0x398
[<ffffffff80186748>] smp_call_function+0x58/0xa8
[<ffffffff80119b5c>] r4k_flush_data_cache_page+0x54/0xd8
[<ffffffff801f39bc>] handle_pte_fault+0xa9c/0xad0
[<ffffffff801f40d0>] handle_mm_fault+0x158/0x200
[<ffffffff80115548>] do_page_fault+0x218/0x3b0
[<ffffffff80102744>] ret_from_exception+0x0/0x10
[<ffffffff8010eb18>] copy_siginfo_to_user32+0x50/0x298
[<ffffffff8010edf0>] setup_rt_frame_32+0x90/0x250
[<ffffffff80106414>] do_notify_resume+0x154/0x358
[<ffffffff80102930>] work_notifysig+0xc/0x14
Enable interrupts in do_signal() before delivering signals. Might be
done in the entry code before calling do_notify_resume(), but I leave
that for the MIPS ASM wizards.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
]
4/7 [
Author: Wu Zhangjin
Email: wuzhangjin@gmail.com
Subject: MIPS: Make the die_lock be raw
Date: Sat, 23 Jul 2011 11:41:24 +0000
On preempt-rt this lock needs to be raw, so it does not get converted
to a sleeping spinlock. Trying to sleep in a panic is not really
desireable.
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
]
5/7 [
Author: Wu Zhangjin
Email: wuzhangjin@gmail.com
Subject: MIPS: Mark cascade and low level interrupts IRQF_NO_THREAD
Date: Sat, 23 Jul 2011 11:41:24 +0000
Mark interrupts with no_action handler, cascade interrupts, low level
interrupts (bus error, halt ..) with IRQF_NO_THREAD to exclude them
from forced threading.
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
]
6/7 [
Author: Wu Zhangjin
Email: wuzhangjin@gmail.com
Subject: MIPS: Loongson: Mark cascade interrupts IRQF_NO_THREAD
Date: Sat, 23 Jul 2011 11:41:24 +0000
There are two cascade interrupts in Loongson machines, one for bonito
northbridge, another for the 8259A controller in the southbridge. Both
want to be non threaded.
Signed-off-by: Wu Zhangjin <wuzhangjin@gmail.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
]
7/7 [
Author: Thomas Gleixner
Email: tglx@linutronix.de
Subject: mips: Allow forced irq threading
Date: Sat, 23 Jul 2011 11:41:25 +0000
All low level interrupts have been marked NO_THREAD, so MIPS can enjoy
the wonderful world of forced threaded interrupt handlers.
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
]
Signed-off-by: Bruce Ashfield <bruce.ashfield@windriver.com>
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Bruce Ashfield