Commit Graph

726 Commits

Author SHA1 Message Date
Kay Sievers
af5ca3f4ec Driver core: change sysdev classes to use dynamic kobject names
All kobjects require a dynamically allocated name now. We no longer
need to keep track if the name is statically assigned, we can just
unconditionally free() all kobject names on cleanup.

Signed-off-by: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-01-24 20:40:40 -08:00
Greg Kroah-Hartman
38a382ae5d Kobject: convert arch/* from kobject_unregister() to kobject_put()
There is no need for kobject_unregister() anymore, thanks to Kay's
kobject cleanup changes, so replace all instances of it with
kobject_put().


Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-01-24 20:40:39 -08:00
Greg Kroah-Hartman
d48b335256 Kobject: change arch/sh/kernel/cpu/sh4/sq.c to use kobject_init_and_add
Stop using kobject_register, as this way we can control the sending of
the uevent properly, after everything is properly initialized.

Cc: Kay Sievers <kay.sievers@vrfy.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
2008-01-24 20:40:29 -08:00
Nobuhiro Iwamatsu
b0d98dc504 sh: Support PCI IO access of SH7780 base boards.
The IO access of PCI is not supported in R7780RP and the MS7780SE
board now. The support of the IO access mode of e100 and a lot of IDE
chips becomes possible by fixing the code.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-30 12:36:13 +09:00
Nobuhiro Iwamatsu
78ffeec462 sh: Fix PCI IO space base address of SH7780.
PCI IO space base address of SH7780 was wrong.
Change from 0xFE400000 to 0xFE200000.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-30 12:35:24 +09:00
Magnus Damm
9a876d60a1 sh: include ax88796 in the defconfig for r7785rp
This patch adds the ax88796 device driver to the r7785rp defconfig.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-23 14:39:55 +09:00
Magnus Damm
9b145b1be4 sh: include ax88796 in the defconfig for r7780mp
This patch adds the ax88796 device driver to the r7780mp defconfig.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-23 14:39:39 +09:00
Magnus Damm
abac3f784f sh: fix R2D-1 CF support
This patch fixes CF support for R2D-1 boards. Both R2D-1 and
R2D-PLUS are equipped with CF IRQs, but the R2D-1 FPGA version
seem to deliver IRQ spikes with certain CF cards during libata
probing.  This patch enables polling for R2D-1 as a workaround
for this broken FGPA logic.

R2D-1 CF support was recently introduced by commit:
43f4b8c757.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-23 14:39:13 +09:00
Paul Mundt
0f1a394ba6 sh: lockless UTLB miss fast-path.
With the refactored update_mmu_cache() introduced in older kernels,
there's no longer any need to take the page_table_lock in this path,
so simply drop it completely.

Without this, performance degradation is seen on SMP on heavily
threaded workloads that don't use the split ptlock, and ultimately
we have no reason to contend for the lock in the first place.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-19 13:05:18 +09:00
Paul Mundt
1c6b2ca5e0 sh: Kill off UTLB flush in fast-path.
The __do_page_fault() fast-path contains a UTLB flush in order to
force an ITLB reload, this isn't needed in practice as the ITLB is
auto-reloaded from the UTLB anyways, which is already displaced by
the manual 'ldtlb' in the update_mmu_cache() path.

This provides a measurable speed up in the TLB miss fast-path.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-19 13:00:32 +09:00
Paul Mundt
541c547731 Merge branch 'page_colouring_despair' 2007-11-08 17:01:42 +09:00
Paul Mundt
6d1c76d4e7 sh: Kill off broken snapgear ds1302 code.
This will force the snapgear boards to use the on-chip SH RTC instead,
until the rtc-ds1302 driver is merged. The current code is broken
and hasn't built in some time, so just kill it off and get the board
working again.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-08 11:24:33 +09:00
Nobuhiro Iwamatsu
9c88b6ba1c sh: Fix heartbeart on Solution Engine series
Access size to LED is not added on Solution Engine series.
LED doesn't work. Fixed this problem.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-07 14:56:46 +09:00
Paul Mundt
c7a0e13d0a sh: hs7751rvoip: Kill off dead IPR IRQ mappings.
This is dead code, and doesn't build anyways. Kill it off.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-07 11:39:35 +09:00
Paul Mundt
b7b2387004 sh: hs7751rvoip: irq.c needs linux/interrupt.h.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-07 11:38:37 +09:00
Paul Mundt
af39c16bd8 sh: Kill off __{copy,clear}_user_page().
Now that copy_to_user_page()/copy_from_user_page() are wired up, we
can drop the old __copy_xxx() implementations. Now that the page
colouring scheme has changed via kmap_coherent(), we can avoid the
flush in these specific helpers.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-07 11:14:12 +09:00
Paul Mundt
ba1789efea sh: Optimized copy_{to,from}_user_page() for SH-4.
This moves copy_{to,from}_user_page() out-of-line on SH-4 and
converts for the kmap_coherent() API. Based on the MIPS
implementation.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-07 11:14:12 +09:00
Paul Mundt
7747b9a493 sh: Wire up clear_user_highpage().
With the kmap_coherent() API in place, this is trivial to implement,
and lets us avoid the cache flush in certain cases.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-07 11:14:12 +09:00
Paul Mundt
f966918724 sh: Kill off the remaining ST40 cruft.
The ST40 stuff in-tree hasn't built for some time, and hasn't been
updated for over 3 years. ST maintains their own out-of-tree changes
and rebases occasionally, and that's ultimately where all of the ST40
users go anyways.

In order for the ST40 code to be brought up to date most of the stuff
removed in this changeset would have to be rewritten anyways, so there's
very little benefit in keeping the remnants around either.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-07 11:13:55 +09:00
Paul Mundt
0acc729ea3 sh: kgdb sysrq depends on magic sysrq.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-07 11:13:55 +09:00
Paul Mundt
98366c20a2 sh: Add -Werror for clean directories.
Follow the MIPS and sparc64 changes for -Werror instrumentation.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-07 11:13:55 +09:00
Paul Mundt
808bde2537 sh: Fix up kgdb build with modular sh-sci.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-07 11:13:55 +09:00
Paul Mundt
98c6942975 sh: Export __{s,u}divsi3_i4i on all CPUs.
Currently these are only being exported for CONFIG_CPU_SH4. This
invariably breaks when building for an SH-3 that includes multiple
targets in multilib.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-07 11:13:55 +09:00
Paul Mundt
96a8a0ba12 sh: Fix up kgdb-on-NMI branch target.
This was all reworked some time ago, the old debug_enter was ripped
out with everything going through a debug trap jump table instead.
Kill off the debug_enter target and reference kgdb_handle_exception
directly.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-07 11:13:55 +09:00
Paul Mundt
0e3a9aab95 sh: ubc wakeup for SH-4 only.
SH-4A parts generally don't have any use for this, and it requires an
alternate implementation anyways. Leave this as an SH-4 only option,
as that's the only place this has been needed in the past.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-07 11:13:55 +09:00
Nobuhiro Iwamatsu
f7b6130e73 sh: Fix compression method when making uImage.
When uImage is made by using 'make uImage', zImage is used.
If zImage is used, the compression method need not be set.
However, it is set for "gzip" for a compression method.
I corrected to set "none".

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-07 11:13:54 +09:00
Paul Mundt
d177469905 sh: Kill off duplicate includes.
Caught by the surprisingly not-entirely-useless 'includecheck'.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-07 11:13:54 +09:00
Nobuhiro Iwamatsu
a8199071ca sh: Add SH7705 and other to the support of Solution Engine.
This patch supports Hitachi Solution Engine (SuperH) of SH7705, SH7710,
SH7712, SH7750S and SH7750R.

Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-07 11:13:54 +09:00
Paul Mundt
352d281300 sh: Update r7785rp defconfig.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-02 14:33:21 +09:00
Paul Mundt
0b532f5773 sh: mach-type updates.
This adds in the x3proto and magicpanelr2 mach types, plugs in
highlander and rts7751r2d groups, and also hooks up the r2d
subtypes.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-02 14:28:07 +09:00
Paul Mundt
b5751e2e00 sh: Fix up r7780rp highlander CF access size.
R7780RP can't do byte-sized accesses to CF, so needs to do word
sized access with low-byte masking. This same problem exists
on older versions of the R2D, with the same workaround having
been implemented in 43f4b8c757
there. Follow that change for the highlander boards.

This does not impact R7780MP or SH7785 based Highlander modules.

If you're unfortunate enough to be stuck with an R7780RP, this
patch is for you!

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-02 14:17:19 +09:00
Kaz Kojima
f38c5a696a sh: Terminate .eh_frame in VDSO with a 4-byte 0.
It's assumed that .eh_frame is terminated with 4-byte 0 in shared
libraries and executable.  It seems to be the case for VDSOs too.
Without this terminator, I saw failures when unwinding from VDSO,
though I don't know how other architectures handle this issue.
For the normal libs, crtendS.o gives this terminator.  We can use
such terminating objects.  Or we can add a 4-byte 0 with modifying
the linker script like as the patch below.

Signed-off-by: Kaz Kojima <kkojima@rr.iij4u.or.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-02 12:29:37 +09:00
Paul Mundt
110ed28246 sh: Decouple 4k and soft/hardirq stacks.
While using separate IRQ stacks can cut down on stack consumption,
many users can also use 4k stacks directly without the additional
need of separate stacks for soft and hardirqs.

With this split, we support the same rationale for 4KSTACKS as
m68knommu, with the IRQSTACKS abstraction as per ppc64.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-02 12:16:51 +09:00
Stuart Menefy
0e670685e4 sh: Fix optimized __copy_user() movca.l usage.
movca.l is restricted to SH-4 and up only, though compilers that
are unable to support ISA tuning (especially older versions of
binutils) will happily compile in the bogus opcode on older parts.

Conditionalize it to fix SH-3 regressions noted by Kristoffer.

Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-02 12:14:09 +09:00
Paul Mundt
c81134b58c sh: Clean up SR.RB Kconfig mess.
CPU_HAS_SR_RB is selected by both CPU_SH3 and CPU_SH4, so having a
dependency and default y on those additionally doesn't make much sense.
The select also has to be special cased for CPUs that don't support
this.

This is also something that has been abused too much as a result
of being user-visible, hence the addition of the select in the first
place. So just kill the user-visibility entirely while we're at it.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-10-31 15:22:45 +09:00
Paul Mundt
b2078fa221 sh: Kill off dead ipr_irq_demux().
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-10-31 15:17:03 +09:00
Paul Mundt
b46378bc59 sh: Make SH7750 oprofile compile again.
Converts from the profile notifier to the timer hook. Follows
the generic timer interrupt-based change.

This really wants to be converted to perfmon..

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-10-30 18:24:17 +09:00
Paul Mundt
36b13d767a sh: linker script tidying.
Some cleanups to the SH linker script. This reorders some of the
data sections for more optimal placement, general tabification,
and plugging in omitted generic definitions.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-10-30 17:38:03 +09:00
Paul Mundt
69d1ef4caf sh: Move zero page param defs somewhere sensible.
Follows s390 and others.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-10-30 17:32:08 +09:00
Paul Mundt
3f9654f02e sh: Kill off legacy embedded ramdisk section.
When the SH kernel used to support embedding a ramdisk in the
pre-initramfs days it was placed in a special section and made to
look like a regular initrd. Since that was removed ages ago, kill
off the remaining cruft that was missed.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-10-30 17:25:29 +09:00
Paul Mundt
7e5186eaae sh: Fix up early mem cmdline parsing.
memory_end was being clobbered by whatever the kernel config had
specified, rather than obeying the setup option. Fix this up so
that memory_end is only initialized if nothing has been set on
the command line.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-10-30 17:18:08 +09:00
Yoshihiro Shimoda
16f393df49 sh: Enable USBF on MS7722SE.
Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-10-30 13:05:51 +09:00
Yoshihiro Shimoda
262feaa08e sh: Add resource of USBF for SH7722.
Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-10-30 13:05:31 +09:00
Manuel Lauss
4d2718d00d sh: fix zImage build with >=binutils-2.18
Starting with binutils somewhere around 2.17.50.14 the vmlinux file
contains a ".note.gnu.build-id" section which doesn't get removed when
the zImage is built; resulting in a 2GB intermediate file and a broken
zImage.

Signed-off-by: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-10-30 09:54:12 +09:00
Alejandro Martinez Ruiz
767f0d6867 sh: ARRAY_SIZE() cleanup
I'm converting most array size calculations under arch/ to use the
ARRAY_SIZE() macro. This is the (tiny) patch for sh.

Signed-off-by: Alejandro Martinez Ruiz <alex@flawedcode.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-10-30 08:44:13 +09:00
Adrian McMenamin
ad07b1001e sh: Clean up Kconfig entry for Dreamcast.
Remove reference to out of date/rotting websites.

Signed-off-by: Adrian McMenamin <adrian@mcmen.demon.co.uk>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-10-30 08:44:12 +09:00
Magnus Damm
c6f93a340f sh: add support for ax88796 and 93cx6 to highlander boards
This patch adds support for the ax88796 driver on highlander boards.

Implemented using the 93cx6 EEPROM support introduced by commit-id
89e536a190.

Signed-off-by: Magnus Damm <damm@igel.co.jp>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-10-30 08:44:12 +09:00
Mathieu Desnoyers
09cadedbdc Combine instrumentation menus in kernel/Kconfig.instrumentation
Quoting Randy:

"It seems sad that this patch sources Kconfig.marker, a 7-line file,
20-something times.  Yes, you (we) don't want to put those 7 lines into
20-something different files, so sourcing is the right thing.

However, what you did for avr32 seems more on the right track to me: make
_one_ Instrumentation support menu that includes PROFILING, OPROFILE, KPROBES,
and MARKERS and then use (source) that in all of the arches."

Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
Acked-by: Randy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-19 11:53:54 -07:00
Bernhard Walle
7d7712a385 Use extended crashkernel command line on sh
This patch removes the crashkernel parsing from arch/sh/kernel/machine_kexec.c
and calls the generic function, introduced in the generic patch, in
setup_bootmem_allocator().

This is necessary because the amount of System RAM must be known in this
function now because of the new syntax.

Signed-off-by: Bernhard Walle <bwalle@suse.de>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Cc: Vivek Goyal <vgoyal@in.ibm.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-19 11:53:51 -07:00
Alexey Dobriyan
19c5870c0e Use helpers to obtain task pid in printks (arch code)
One of the easiest things to isolate is the pid printed in kernel log.
There was a patch, that made this for arch-independent code, this one makes
so for arch/xxx files.

It took some time to cross-compile it, but hopefully these are all the
printks in arch code.

Signed-off-by: Alexey Dobriyan <adobriyan@openvz.org>
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Cc: <linux-arch@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-19 11:53:43 -07:00