22 May, 2009
3 commits
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They are unneeded and as the issue fixed in lmo commit
63f7ec59053e3f850ab67a9938e631bcba64c6ce shows even harmful.Signed-off-by: Ralf Baechle
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CC arch/mips/sgi-ip32/ip32-reset.o
cc1: warnings being treated as errors
arch/mips/sgi-ip32/ip32-reset.c: In function 'debounce':
arch/mips/sgi-ip32/ip32-reset.c:97: error: 'reg_a' is used uninitialized in this functionThe issues is old but due to the volatile keyword gcc older than 4.4 did
not warn about this obvious bug.Signed-off-by: Ralf Baechle
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The type of the second argument of access_ok should be (void __user *).
The unnecessary conversion of the clear_user address argument was causing
sparse to emit warnings on the __chk_user_ptr check.Signed-off-by: Wu Zhangjin
Signed-off-by: Ralf Baechle
21 May, 2009
4 commits
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The address range size calculation inside local_flush_tlb_kernel_range()
is being truncated by a too small size variable holder on 64-bit systems.
The truncated size can result in an erroneous tlbsize check that means we
sit spinning inside a loop trying to flush a hige number of TLB entries.
This is for all intents and purposes a system hang. Fix by using an
appropriately sized valiable to hold the size.[Ralf: Greg's original patch submission identified the issue and fixed one
instance in tlb-r4k.c but there there were several more. For consistency
I also modified tlb-r3k.c even though that file is only used on 32-bit.]Signed-off-by: Greg Ungerer
Signed-off-by: Ralf Baechle -
Richard Sandiford's new code for inserting the cache-barriers, for GCC
4.3 and above and already incorporated in the current GCC-release, uses
a slightly different option-syntax.Signed-off-by: peter fuerst
Signed-off-by: Ralf Baechle -
The hang was caused by the use of disable_irq() from the interrupt handler
itself. Fixed by the use of disable_irq_nosync(). The issue was
triggered by:commit 3aa551c9b4c40018f0e261a178e3d25478dc04a9
Author: Thomas Gleixner
Date: Mon Mar 23 18:28:15 2009 +0100genirq: add threaded interrupt handler support
Signed-off-by: Ralf Baechle
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The hang was caused by the use of disable_irq() from the interrupt handler
itself. Fixed by the use of disable_irq_nosync(). The issue was
triggered by:commit 3aa551c9b4c40018f0e261a178e3d25478dc04a9
Author: Thomas Gleixner
Date: Mon Mar 23 18:28:15 2009 +0100genirq: add threaded interrupt handler support
Signed-off-by: Ralf Baechle
14 May, 2009
33 commits
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Locking of irq_desc is now done in irq_set_affinity; don't lock it again
in chip specific set_affinity function.Signed-off-by: Thomas Bogendoerfer
Signed-off-by: Ralf Baechle -
When init is started it is SIGNAL_UNKILLABLE. If it were to get an
address error, we would try to send it SIGBUS, but it would be ignored
and the faulting instruction restarted. This results in an endless
loop.We need to use force_sig() instead so it will actually die and give us
some useful information.Reported-by: Florian Fainelli
Signed-off-by: David Daney
Signed-off-by: Ralf Baechle -
This patch modifies parameter of octeon_cvmcount_read() from 'void' to
'struct clocksource *cs', which fixes compile warning for incompatible
parameter type.Signed-off-by: Coly Li
Cc: David Daney
Cc: Ingo Molnar
Reviewed-by: David Daney
Signed-off-by: Ralf Baechle -
The inline assembler used on 32-bit kernels was using the "h" constraint
which was considered dangerous and removed for gcc 4.4.0.Signed-off-by: Ralf Baechle
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Commit 351336929ccf222ae38ff0cb7a8dd5fd5c6236a0 (kernel.org) rsp.
b3594a089f1c17ff919f8f78505c3f20e1f6f8ce (linux-mips.org):> From: Chris Dearman
> Date: Wed, 19 Sep 2007 00:58:24 +0100
> Subject: [PATCH] [MIPS] Allow setting of the cache attribute at run time.
>
> Slightly tacky, but there is a precedent in the sparc archirecture code.introduces the variable _page_cachable_default, which defaults to zero and.
is used to create the prototype PTE for __kmap_atomic in
arch/mips/mm/init.c:kmap_init before initialization in
arch/mips/mm/c-r4k.c:coherency_setup, so the default value of 0 will be
used as the CCA of kmap atomic pages which on many processors is not a
defined CCA value and may result in writes to kmap_atomic pages getting
corrupted. Debugged by Jon Fraser (jfraser@broadcom.com).Signed-off-by: Ralf Baechle
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Probably nobody does arithmetic on cp0 register values so this has never
bitten.Signed-off-by: Ralf Baechle
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The RAMROOT function was a successful but non-portable attempt to append
the root filesystem to the end of the kernel image. The preferred and
portable solution is to use an initramfs instead.Signed-off-by: Shane McDonald
Signed-off-by: Ralf Baechle -
I don't think that in 15 years of Linux/MIPS the zero division checking
code generated by gcc by default has ever caught anything.Signed-off-by: Ralf Baechle
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Otherwise indigestable options might be passed to the host compiler.
Signed-off-by: Ralf Baechle
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Signed-off-by: Ralf Baechle
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Signed-off-by: Ralf Baechle
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There have been a number of compile problems with the msp71xx configuration
ever since it was included in the linux-mips.org repository. This patch
resolves compilation problems with attempting to reset the board using
non-existent GPIO routines.This patch has been compile-tested against the current HEAD.
Signed-off-by: Shane McDonald
Signed-off-by: Ralf Baechle -
There have been a number of compile problems with the msp71xx configuration
ever since it was included in the linux-mips.org repository. This patch
resolves the "multiple definition of plat_timer_setup" problem, and creates
the required get_c0_compare_int function.This patch has been compile-tested against the current HEAD.
Signed-off-by: Shane McDonald
Signed-off-by: Ralf Baechle -
Signed-off-by: Ralf Baechle
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Signed-off-by: Ralf Baechle
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There was already a define for NMI_OFFSET in asm/sn/addr.h, which now
clashes with linux/hardirq.h. Rename the one in sn/addr.h to fix IP27
builds..Signed-off-by: Thomas Bogendoerfer
Signed-off-by: Ralf Baechle -
Fix breakage introduced by 8e19608e8b5c001e4a66ce482edc474f05fb7355.
Signed-off-by: Manuel Lauss
Signed-off-by: Ralf Baechle -
Signed-off-by: Ralf Baechle
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Beyond the requirements of the architecture standard Cavium also supports
8k and 32k pages.Signed-off-by: Ralf Baechle
Acked-by: David Daney -
Addition of -fwrapv option in 2.6.29 discloses possible overflow with
signed arithmetics. For example, result of "a * 6 / 12" (int a =
400000000) is 200000000 without -fwrapv but -157913941 with -fwrapv.Change some variable to unsigned to avoid such overflows.
Signed-off-by: Atsushi Nemoto
Signed-off-by: Ralf Baechle -
Synchronize dma_map_page/dma_unmap_page and dma_map_single/dma_unmap_single.
This will reduce unnecessary writebacks and invalidates.[Ralf: make dma_unmap_page an inline function.]
Signed-off-by: Atsushi Nemoto
Signed-off-by: Ralf Baechle -
This is useful for IDT RC32332, RC32334 and NEC VR5500 processors which do
not implement the full MIPS32 / MIPS64 architecture.Signed-off-by: Ralf Baechle
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Quoting from Loongson2FUserGuide.pdf:
5.22.1 Hazards
The processor detects most of the pipeline hazards in hardware, including
CP0 hazards and load hazards. No NOP instructions are required to correct
instruction sequences.Signed-off-by: Zhang Le
Signed-off-by: Ralf Baechle -
The compat.h does not need seccomp.h since TIF_32BIT was moved to
thread_info.hThis fixes a build error of 64-bit kernel without CONFIG_SECCOMP.
Signed-off-by: Atsushi Nemoto
Acked-by: : David Daney
Signed-off-by: Ralf Baechle -
Signed-off-by: Atsushi Nemoto
Signed-off-by: Ralf Baechle -
The LTP timerfd01 test is failing (blocking forever) on the 32-bit ABIs. We
need to use the compat_* wrappers for these system calls.Signed-off-by: David Daney
Signed-off-by: Ralf Baechle -
Introduced by 99aa5029937ee926e3b249369e208d7013cd381b.
Signed-off-by: Ralf Baechle
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I have taken Wu Zhangjin's and Philippe Vachon's version as references,
did a little modification and tested on 16K page size kernel. It works
well.Unfornately although it already has defined cpu_has_dc_aliases as 1, 4k
page size still not working. More work needed here.Signed-off-by: Zhang Le
Signed-off-by: Ralf Baechle -
Signed-off-by: Ralf Baechle
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The following symbols are needlessly defined global: cpuerr_irq and
memerr_irq. This patch makes the symbols static.Signed-off-by: Dmitri Vorobiev
Signed-off-by: Ralf Baechle -
The file arch/mips/sgi-ip32/ip32-berr.c needlessly defines the function
ip32_be_handler() as global, and this patch makes it static.Signed-off-by: Dmitri Vorobiev
Signed-off-by: Ralf Baechle -
The file arch/mips/mm/sc-rm7k.c needlessly defines two global symbols:
rm7k_sc_ops
rm7k_tcache_enabledThis patch makes these symbols static.
Signed-off-by: Dmitri Vorobiev
Signed-off-by: Ralf Baechle -
au1xxx_power_dev_t? is never defined; get rid of all PM stuff as well
since it is not in the driver source anyway.Signed-off-by: Manuel Lauss
Acked-by: Sergei Shtylyov
Signed-off-by: Ralf Baechle
