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2007-11-30sh: Support PCI IO access of SH7780 base boards.Nobuhiro Iwamatsu2-4/+4
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>
2007-11-30sh: Fix PCI IO space base address of SH7780.Nobuhiro Iwamatsu1-1/+1
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>
2007-11-23sh: include ax88796 in the defconfig for r7785rpMagnus Damm1-5/+5
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>
2007-11-23sh: include ax88796 in the defconfig for r7780mpMagnus Damm1-198/+89
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>
2007-11-23sh: fix R2D-1 CF supportMagnus Damm1-0/+2
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: 43f4b8c7578b928892b6f01d374346ae14e5eb70. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-19sh: lockless UTLB miss fast-path.Paul Mundt1-18/+7
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>
2007-11-19sh: Kill off UTLB flush in fast-path.Paul Mundt1-8/+0
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>
2007-11-08Merge branch 'page_colouring_despair'Paul Mundt3-129/+52
2007-11-08sh: Kill off broken snapgear ds1302 code.Paul Mundt3-326/+2
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>
2007-11-07sh: Fix heartbeart on Solution Engine seriesNobuhiro Iwamatsu3-0/+17
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>
2007-11-07sh: hs7751rvoip: Kill off dead IPR IRQ mappings.Paul Mundt1-17/+2
This is dead code, and doesn't build anyways. Kill it off. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-07sh: hs7751rvoip: irq.c needs linux/interrupt.h.Paul Mundt1-0/+1
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-07sh: Kill off __{copy,clear}_user_page().Paul Mundt2-106/+0
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>
2007-11-07sh: Optimized copy_{to,from}_user_page() for SH-4.Paul Mundt1-23/+29
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>
2007-11-07sh: Wire up clear_user_highpage().Paul Mundt1-0/+23
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>
2007-11-07sh: Kill off the remaining ST40 cruft.Paul Mundt6-654/+1
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>
2007-11-07sh: kgdb sysrq depends on magic sysrq.Paul Mundt1-0/+1
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-07sh: Add -Werror for clean directories.Paul Mundt6-1/+10
Follow the MIPS and sparc64 changes for -Werror instrumentation. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-07sh: Fix up kgdb build with modular sh-sci.Paul Mundt2-2/+9
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-07sh: Export __{s,u}divsi3_i4i on all CPUs.Paul Mundt1-2/+0
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>
2007-11-07sh: Fix up kgdb-on-NMI branch target.Paul Mundt1-1/+1
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>
2007-11-07sh: ubc wakeup for SH-4 only.Paul Mundt1-1/+1
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>
2007-11-07sh: Fix compression method when making uImage.Nobuhiro Iwamatsu1-1/+1
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>
2007-11-07sh: Kill off duplicate includes.Paul Mundt3-3/+0
Caught by the surprisingly not-entirely-useless 'includecheck'. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-07sh: Add SH7705 and other to the support of Solution Engine.Nobuhiro Iwamatsu1-3/+5
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>
2007-11-02sh: Update r7785rp defconfig.Paul Mundt1-198/+101
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-11-02sh: mach-type updates.Paul Mundt1-8/+21
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>
2007-11-02sh: Fix up r7780rp highlander CF access size.Paul Mundt1-0/+31
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 43f4b8c7578b928892b6f01d374346ae14e5eb70 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>
2007-11-02sh: Terminate .eh_frame in VDSO with a 4-byte 0.Kaz Kojima1-1/+4
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>
2007-11-02sh: Decouple 4k and soft/hardirq stacks.Paul Mundt2-4/+12
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>
2007-11-02sh: Fix optimized __copy_user() movca.l usage.Stuart Menefy1-0/+4
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>
2007-10-31sh: Clean up SR.RB Kconfig mess.Paul Mundt1-3/+1
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>
2007-10-31sh: Kill off dead ipr_irq_demux().Paul Mundt1-9/+0
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-10-30sh: Make SH7750 oprofile compile again.Paul Mundt1-15/+7
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>
2007-10-30sh: linker script tidying.Paul Mundt1-93/+104
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>
2007-10-30sh: Move zero page param defs somewhere sensible.Paul Mundt1-16/+9
Follows s390 and others. Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-10-30sh: Kill off legacy embedded ramdisk section.Paul Mundt2-22/+1
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>
2007-10-30sh: Fix up early mem cmdline parsing.Paul Mundt1-3/+3
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>
2007-10-30sh: Enable USBF on MS7722SE.Yoshihiro Shimoda1-2/+2
Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-10-30sh: Add resource of USBF for SH7722.Yoshihiro Shimoda1-0/+27
Signed-off-by: Yoshihiro Shimoda <shimoda.yoshihiro@renesas.com> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-10-30sh: fix zImage build with >=binutils-2.18Manuel Lauss1-1/+1
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>
2007-10-30sh: ARRAY_SIZE() cleanupAlejandro Martinez Ruiz1-2/+2
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>
2007-10-30sh: Clean up Kconfig entry for Dreamcast.Adrian McMenamin1-3/+1
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>
2007-10-30sh: add support for ax88796 and 93cx6 to highlander boardsMagnus Damm1-0/+40
This patch adds support for the ax88796 driver on highlander boards. Implemented using the 93cx6 EEPROM support introduced by commit-id 89e536a190f90d038bae7905a0c582cb7089b739. Signed-off-by: Magnus Damm <damm@igel.co.jp> Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2007-10-19Combine instrumentation menus in kernel/Kconfig.instrumentationMathieu Desnoyers2-24/+1
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>
2007-10-19Use extended crashkernel command line on shBernhard Walle2-26/+33
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>
2007-10-19Use helpers to obtain task pid in printks (arch code)Alexey Dobriyan3-6/+7
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>
2007-10-19pid namespaces: define is_global_init() and is_container_init()Serge E. Hallyn1-1/+1
is_init() is an ambiguous name for the pid==1 check. Split it into is_global_init() and is_container_init(). A cgroup init has it's tsk->pid == 1. A global init also has it's tsk->pid == 1 and it's active pid namespace is the init_pid_ns. But rather than check the active pid namespace, compare the task structure with 'init_pid_ns.child_reaper', which is initialized during boot to the /sbin/init process and never changes. Changelog: 2.6.22-rc4-mm2-pidns1: - Use 'init_pid_ns.child_reaper' to determine if a given task is the global init (/sbin/init) process. This would improve performance and remove dependence on the task_pid(). 2.6.21-mm2-pidns2: - [Sukadev Bhattiprolu] Changed is_container_init() calls in {powerpc, ppc,avr32}/traps.c for the _exception() call to is_global_init(). This way, we kill only the cgroup if the cgroup's init has a bug rather than force a kernel panic. [akpm@linux-foundation.org: fix comment] [sukadev@us.ibm.com: Use is_global_init() in arch/m32r/mm/fault.c] [bunk@stusta.de: kernel/pid.c: remove unused exports] [sukadev@us.ibm.com: Fix capability.c to work with threaded init] Signed-off-by: Serge E. Hallyn <serue@us.ibm.com> Signed-off-by: Sukadev Bhattiprolu <sukadev@us.ibm.com> Acked-by: Pavel Emelianov <xemul@openvz.org> Cc: Eric W. Biederman <ebiederm@xmission.com> Cc: Cedric Le Goater <clg@fr.ibm.com> Cc: Dave Hansen <haveblue@us.ibm.com> Cc: Herbert Poetzel <herbert@13thfloor.at> Cc: Kirill Korotaev <dev@sw.ru> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-18PM: Rename struct pm_ops and related thingsRafael J. Wysocki1-3/+3
The name of 'struct pm_ops' suggests that it is related to the power management in general, but in fact it is only related to suspend.  Moreover, its name should indicate what this structure is used for, so it seems reasonable to change it to 'struct platform_suspend_ops'.  In that case, the name of the global variable of this type used by the PM core and the names of related functions should be changed accordingly. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Acked-by: Pavel Machek <pavel@ucw.cz> Cc: Len Brown <lenb@kernel.org> Cc: Greg KH <greg@kroah.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-10-17Remove dma_cache_(wback|inv|wback_inv) functionsRalf Baechle2-5/+5
dma_cache_(wback|inv|wback_inv) were the earliest attempt on a generalized cache managment API for I/O purposes. Originally it was basically the raw MIPS low level cache API exported to the entire world. The API has suffered from a lack of documentation, was not very widely used unlike it's more modern brothers and can easily be replaced by dma_cache_sync. So remove it rsp. turn the surviving bits back into an arch private API, as discussed on linux-arch. Signed-off-by: Ralf Baechle <ralf@linux-mips.org> Acked-by: Paul Mundt <lethal@linux-sh.org> Acked-by: Paul Mackerras <paulus@samba.org> Acked-by: David S. Miller <davem@davemloft.net> Acked-by: Kyle McMartin <kyle@parisc-linux.org> Acked-by: Haavard Skinnemoen <hskinnemoen@atmel.com> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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