| Commit message (Collapse) | Author | Age |
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This patch fixes the TMU code to allow NO_HZ to work on sh
Signed-off-by: Francesco Virlinzi <francesco.virlinzi@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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This patch adds support for the SH4 to convert a subnormal double
into a float by catching the FPE and implementing the FCNVDS
instruction in software.
Signed-off-by: Carl Shaw <carl.shaw@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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This fixes a problems with the set up of Linux memory:
- When reserving memory at boot time, the code previously reserved
the bottom page of memory, and then from one page up to the end of
the bootmap. This had the desired effect, but was strictly speaking
wrong, as the one page was actually whatever CONFIG_ZERO_PAGE_OFFSET
had been set to.
Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Fix "make uImage" load and entry addresses in 32-bit mode.
Signed-off-by: Chris Smith <chris.smith@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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This fixes a problem in the code which copies the vmalloc portion of the
kernel's page table into the current user space page table. The addition
of the four level page table code breaks on folded page tables, because
the pud level is always present (although folded). This updates the code
to use the same style of updates for the pud as is used for the pgd
level.
Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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statically initialise the cached_to_uncached offset, so that we can use
it immediatly.
Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Fixes up compile errors with missing timer definitions. It's pointless to
have this enabled anyways if CONFIG_SMP=n.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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The dummy timer needs to be registered on the boot CPU before the
system timer clockevent is registered, or broadcasting doesn't work
as advertized.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Without this, certain versions of GCC will happily optimize the entire
loop out.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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This hooks up GENERIC_CLOCKEVENTS_BROADCAST and a dummy local timer,
which we call in to from the timer IPI when no other local timer is
provided.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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This provides a generic smp_message_recv() routine (based on the PPC
one), that IPI IRQs can wrap in to.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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o elfcorehdr_addr is used by not only the code under CONFIG_PROC_VMCORE
but also by the code which is not inside CONFIG_PROC_VMCORE. For
example, is_kdump_kernel() is used by powerpc code to determine if
kernel is booting after a panic then use previous kernel's TCE table.
So even if CONFIG_PROC_VMCORE is not set in second kernel, one should be
able to correctly determine that we are booting after a panic and setup
calgary iommu accordingly.
o So remove the assumption that elfcorehdr_addr is under
CONFIG_PROC_VMCORE.
o Move definition of elfcorehdr_addr to arch dependent crash files.
(Unfortunately crash dump does not have an arch independent file
otherwise that would have been the best place).
o kexec.c is not the right place as one can Have CRASH_DUMP enabled in
second kernel without KEXEC being enabled.
o I don't see sh setup code parsing the command line for
elfcorehdr_addr. I am wondering how does vmcore interface work on sh.
Anyway, I am atleast defining elfcoredhr_addr so that compilation is not
broken on sh.
Signed-off-by: Vivek Goyal <vgoyal@redhat.com>
Acked-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Simon Horman <horms@verge.net.au>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Cc: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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This patch implements a new freezer subsystem in the control groups
framework. It provides a way to stop and resume execution of all tasks in
a cgroup by writing in the cgroup filesystem.
The freezer subsystem in the container filesystem defines a file named
freezer.state. Writing "FROZEN" to the state file will freeze all tasks
in the cgroup. Subsequently writing "RUNNING" will unfreeze the tasks in
the cgroup. Reading will return the current state.
* Examples of usage :
# mkdir /containers/freezer
# mount -t cgroup -ofreezer freezer /containers
# mkdir /containers/0
# echo $some_pid > /containers/0/tasks
to get status of the freezer subsystem :
# cat /containers/0/freezer.state
RUNNING
to freeze all tasks in the container :
# echo FROZEN > /containers/0/freezer.state
# cat /containers/0/freezer.state
FREEZING
# cat /containers/0/freezer.state
FROZEN
to unfreeze all tasks in the container :
# echo RUNNING > /containers/0/freezer.state
# cat /containers/0/freezer.state
RUNNING
This is the basic mechanism which should do the right thing for user space
task in a simple scenario.
It's important to note that freezing can be incomplete. In that case we
return EBUSY. This means that some tasks in the cgroup are busy doing
something that prevents us from completely freezing the cgroup at this
time. After EBUSY, the cgroup will remain partially frozen -- reflected
by freezer.state reporting "FREEZING" when read. The state will remain
"FREEZING" until one of these things happens:
1) Userspace cancels the freezing operation by writing "RUNNING" to
the freezer.state file
2) Userspace retries the freezing operation by writing "FROZEN" to
the freezer.state file (writing "FREEZING" is not legal
and returns EIO)
3) The tasks that blocked the cgroup from entering the "FROZEN"
state disappear from the cgroup's set of tasks.
[akpm@linux-foundation.org: coding-style fixes]
[akpm@linux-foundation.org: export thaw_process]
Signed-off-by: Cedric Le Goater <clg@fr.ibm.com>
Signed-off-by: Matt Helsley <matthltc@us.ibm.com>
Acked-by: Serge E. Hallyn <serue@us.ibm.com>
Tested-by: Matt Helsley <matthltc@us.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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The SET_PERSONALITY macro is always called with a second argument of 0.
Remove the ibcs argument and the various tests to set the PER_SVR4
personality.
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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Right now, there is no notifier that is called on a new cpu, before the new
cpu begins processing interrupts/softirqs.
Various kernel function would need that notification, e.g. kvm works around
by calling smp_call_function_single(), rcu polls cpu_online_map.
The patch adds a CPU_STARTING notification. It also adds a helper function
that sends the message to all cpu_chain handlers.
Tested on x86-64.
All other archs are untested. Especially on sparc, I'm not sure if I got
it right.
Signed-off-by: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
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Follows the SH change.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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This patch fixes a problem within the SH implementation of resume_kernel code,
that implements in assembly the bulk of preempt_schedule_irq function without
taking care of the extra code needed to handle the BKL preemptible.
The patch basically consists of removing this asm code and calling the common
C implementation (see kernel/sched.c) as other archs do.
Another change is the missing 'cli' macro invocation at the beginning of
the resume_kernel.
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: Carmelo Amoroso <carmelo.amoroso@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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fix the problem that cannot work semtimedop system call.
Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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This patch updates the AP325RXA defconfig to include the recently merged
uio_pdrv_genirq driver.
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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This patch updates the MigoR defconfig to include the recently merged
uio_pdrv_genirq driver.
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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This patch kills a section mismatch for platform_resource_setup_memory().
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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The crash kernel entry point is currently checked by the kexec kernel
code and only physical addresses in the reserved memory window are
accepted. This means that we can't pass P2 or P1 addresses as entry
points in the case of crash kernels. This patch makes sure we can start
crash kernels by adding support for physical address entry points.
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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The reserved crash kernel memory range is currently missing from
/proc/iomem. crashk_res is mistakenly setup after __add_active_range().
Reorder things to make sure the resource shows up in /proc/iomem.
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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This patch fixes the following compile error caused by
commit c459dbf294b4a3d70490a468a7ca3907fb2c2f57
(sh: ptrace single stepping cleanups.):
<-- snip -->
...
CC arch/sh/kernel/ptrace_64.o
arch/sh/kernel/ptrace_64.c: In function 'user_disable_single_step':
arch/sh/kernel/ptrace_64.c:134: error: 'regs' undeclared (first use in this function)
arch/sh/kernel/ptrace_64.c:134: error: (Each undeclared identifier is reported only once
arch/sh/kernel/ptrace_64.c:134: error: for each function it appears in.)
...
make[2]: *** [arch/sh/kernel/ptrace_64.o] Error 1
<-- snip -->
Reported-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Commit 42fd3b142d8867f5b58d6fb75592cd20fd654c1b
(sh: Initial consolidation of the _32/_64 uaccess split.)
mistakenly removed the sh64 __strnlen_user() prototype,
resulting in the following compile error:
<-- snip -->
...
CC init/main.o
In file included from include/linux/poll.h:13,
from include/linux/rtc.h:113,
from include/linux/efi.h:19,
from init/main.c:43:
arch/sh/include/asm/uaccess.h: In function 'strnlen_user':
arch/sh/include/asm/uaccess.h:213: error: implicit declaration of function '__strnlen_user'
...
make[2]: *** [init/main.o] Error 1
<-- snip -->
Reported-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6
* 'sh/for-2.6.27' of git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6:
sh: Provide a FLAT_PLAT_INIT() definition.
binfmt_flat: Stub in a FLAT_PLAT_INIT().
video: export sh_mobile_lcdc panel size
sh: select memchunk size using kernel cmdline
sh: export sh7723 VEU as VEU2H
input: migor_ts compile and detection fix
sh: remove MSTPCR defines from Migo-R header file
sh: Update sh7763rdp defconfig
sh: Add support sh7760fb to sh7763rdp board
sh: Add support sh_eth to sh7763rdp board
sh: Disable 64kB hugetlbpage size when using 64kB PAGE_SIZE.
sh: Don't export __{s,u}divsi3_i4i from SH-2 libgcc.
fix SH7705_CACHE_32KB compilation
sh: mach-x3proto: Fix up smc91x platform data.
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SH needs this in order to make sure that r4 has a sane value at process
entry time, which the libc expects has already been taken care of.
Fixes random crashes in flat binaries.
Signed-off-by: Takashi YOSHII <yoshii.takashi@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Export the LCD panel size for sh_mobile_lcdc boards. This allows us
to perform dpi and screen aspect ratio calculations in user space.
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Allow user to pass parameters on kernel command line to override
default size for physically contiguous memory buffers. The default
VPU buffer size is too small for VGA harware encoding, but instead
of just bumping up the number we allow the user to override the
default size using the command line. Supports SuperH Mobile hardware
blocks such as VEU, VPU and CEU.
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Export sh7723 VEU hardware blocks as VEU2H. The sh7723 VEU2H differs
a bit from the sh7722 VEU so use different names for our UIO devices.
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Remove MSTPCR register definitions from Migo-R header file. The clock
frame work should be used instead of direct register access.
Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Add sh7760fb platform device to sh7763rdp's setup.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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SH7763 has sh_eth device. This patch add sh_eth platform device
to this board.
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu.nobuhiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Presently we oops in mm/hugetlb.c:1325, which is the order == 0 test in
hugetlb_add_hstate() called at initialization time. So, disable 64kB
huge pages when we're using a 64kB PAGE_SIZE. On most parts this will
force the default to be 1MB huge pages.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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rsk7203_defconfig fails to build with the following error:
<-- snip -->
...
LD .tmp_vmlinux1
arch/sh/kernel/built-in.o:(__ksymtab+0xb8): undefined reference to `__udivsi3_i4i'
arch/sh/kernel/built-in.o:(__ksymtab+0xc8): undefined reference to `__sdivsi3_i4i'
make[1]: *** [.tmp_vmlinux1] Error 1
<-- snip -->
That worked with 2.6.26, and these are far less undefined references
than in the cases where libgcc was missing.
[ These symbols are not defined on SH-2 versions of libgcc, so we have to
special case the export there. - Paul ]
Reported-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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This patches compile errors like the following caused by
commit 51f3547d619956e9b428bfff17004d8f4d259a02
(sh: Allow SH-3 and SH-5 to use common headers):
<-- snip -->
...
CC arch/sh/mm/init.o
/home/bunk/linux/kernel-2.6/git/linux-2.6/arch/sh/mm/init.c: In function 'mem_init':
/home/bunk/linux/kernel-2.6/git/linux-2.6/arch/sh/mm/init.c:232: error: implicit declaration of function 'p3_cache_init'
make[2]: *** [arch/sh/mm/init.o] Error 1
make[1]: *** [arch/sh/mm] Error 2
...
CC kernel/fork.o
/home/bunk/linux/kernel-2.6/git/linux-2.6/kernel/fork.c: In function 'dup_mmap':
/home/bunk/linux/kernel-2.6/git/linux-2.6/kernel/fork.c:323: error: implicit declaration of function 'flush_dcache_mmap_lock'
/home/bunk/linux/kernel-2.6/git/linux-2.6/kernel/fork.c:325: error: implicit declaration of function 'flush_dcache_mmap_unlock'
make[2]: *** [kernel/fork.o] Error 1
<-- snip -->
Reported-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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smc91x on x3proto needs 16-bit access and nowait, which we can now do
through the platform data.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
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Rename KEXEC_CONTROL_CODE_SIZE to KEXEC_CONTROL_PAGE_SIZE, because control
page is used for not only code on some platform. For example in kexec
jump, it is used for data and stack too.
[akpm@linux-foundation.org: unbreak powerpc and arm, finish conversion]
Signed-off-by: Huang Ying <ying.huang@intel.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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Add support SH7619 Internal ethernet controler.
Signed-off-by: Yoshinori Sato <ysato@users.sourceforge.jp>
Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
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This patch remove unneeded #include <linux/ide.h>'s.
It also adds a required #include <linux/interrupt.h> that was previously
implicitely pulled by ide.h
Signed-off-by: Adrian Bunk <bunk@kernel.org>
[bart: revert change to tests/lkdtm.c (spotted by Stephen Rothwell)]
Signed-off-by: Bartlomiej Zolnierkiewicz <bzolnier@gmail.com>
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