Commit Graph

2572 Commits

Author SHA1 Message Date
Magnus Damm
657bf0bd06 sh: LCDC start_transfer() for the KFR2R09 board
This patch adds a ->start_transfer() callback to the
KFR2R09 lcd handling code. The callback is used to
notify the lcd controller that a new frame of data
is about to be transferred. The callback is only used
in combination with deferred io, but the code has
been tested both with and without deferred io enabled.

Without this patch the display data on the KFR2R09
lcd panel becomes corrupted over time.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-09 12:40:45 +09:00
Magnus Damm
b25b975846 sh: NUMA lmb fixes
This patch updates the NUMA version of setup_memory()
with UMA code changes and also modifies the last argument
to lmb_alloc_base() to use an address instead of pfn.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-09 12:40:44 +09:00
Magnus Damm
f3a4c00ad3 sh: fix size calculation for NUMA node 0
Fix the NUMA size calculation for node 0. Do the same
as the UMA version of setup_memory() and use address
instead of pfn when calculating the size.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-09 12:40:42 +09:00
Nicolas Palix
f701b39998 sh: Replace an explicit computation by the use of the container_of macro
The macro container_of from kernel.h performs the same
pointer arithmetic operation.

The semantic patch that makes this change is as follows:
(http://coccinelle.lip6.fr/)

// <smpl>
@@
type T;
expression mptr;
expression member;
@@

- (void *)((char *)mptr - offsetof(T, member))
+ container_of(mptr, T, member)
// </smpl>

Signed-off-by: Nicolas Palix <npalix@diku.dk>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-09 12:36:51 +09:00
Matt Fleming
e717cc6c07 sh: Can't compare physical and virtual addresses for aliases
It does not make sense to compare virtual and physical addresses for
aliasing, only virtual addresses can be compared for aliases.

Signed-off-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-09 12:34:46 +09:00
Linus Torvalds
6035ccd8e9 Merge branch 'for-2.6.33' of git://git.kernel.dk/linux-2.6-block
* 'for-2.6.33' of git://git.kernel.dk/linux-2.6-block: (113 commits)
  cfq-iosched: Do not access cfqq after freeing it
  block: include linux/err.h to use ERR_PTR
  cfq-iosched: use call_rcu() instead of doing grace period stall on queue exit
  blkio: Allow CFQ group IO scheduling even when CFQ is a module
  blkio: Implement dynamic io controlling policy registration
  blkio: Export some symbols from blkio as its user CFQ can be a module
  block: Fix io_context leak after failure of clone with CLONE_IO
  block: Fix io_context leak after clone with CLONE_IO
  cfq-iosched: make nonrot check logic consistent
  io controller: quick fix for blk-cgroup and modular CFQ
  cfq-iosched: move IO controller declerations to a header file
  cfq-iosched: fix compile problem with !CONFIG_CGROUP
  blkio: Documentation
  blkio: Wait on sync-noidle queue even if rq_noidle = 1
  blkio: Implement group_isolation tunable
  blkio: Determine async workload length based on total number of queues
  blkio: Wait for cfq queue to get backlogged if group is empty
  blkio: Propagate cgroup weight updation to cfq groups
  blkio: Drop the reference to queue once the task changes cgroup
  blkio: Provide some isolation between groups
  ...
2009-12-08 08:19:16 -08:00
Linus Torvalds
d7fc02c7ba Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1815 commits)
  mac80211: fix reorder buffer release
  iwmc3200wifi: Enable wimax core through module parameter
  iwmc3200wifi: Add wifi-wimax coexistence mode as a module parameter
  iwmc3200wifi: Coex table command does not expect a response
  iwmc3200wifi: Update wiwi priority table
  iwlwifi: driver version track kernel version
  iwlwifi: indicate uCode type when fail dump error/event log
  iwl3945: remove duplicated event logging code
  b43: fix two warnings
  ipw2100: fix rebooting hang with driver loaded
  cfg80211: indent regulatory messages with spaces
  iwmc3200wifi: fix NULL pointer dereference in pmkid update
  mac80211: Fix TX status reporting for injected data frames
  ath9k: enable 2GHz band only if the device supports it
  airo: Fix integer overflow warning
  rt2x00: Fix padding bug on L2PAD devices.
  WE: Fix set events not propagated
  b43legacy: avoid PPC fault during resume
  b43: avoid PPC fault during resume
  tcp: fix a timewait refcnt race
  ...

Fix up conflicts due to sysctl cleanups (dead sysctl_check code and
CTL_UNNUMBERED removed) in
	kernel/sysctl_check.c
	net/ipv4/sysctl_net_ipv4.c
	net/ipv6/addrconf.c
	net/sctp/sysctl.c
2009-12-08 07:55:01 -08:00
Linus Torvalds
a421018e8c Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6: (294 commits)
  S3C64XX: Staticise platform data for PCM devices
  ASoC: Rename controls with a / in wm_hubs
  snd-fm801: autodetect SF64-PCR (tuner-only) card
  ALSA: tea575x-tuner: fix mute
  ASoC: au1x: dbdma2: plug memleak in pcm device creation error path
  ASoC: au1x: dbdma2: fix oops on soc device removal.
  ALSA: hda - Fix memory leaks in the previous patch
  ALSA: hda - Add ALC661/259, ALC892/888VD support
  ALSA: opti9xx: remove snd_opti9xx fields
  ALSA: aaci - Clean up duplicate code
  ALSA: usb - Fix mixer map for Hercules Gamesurround Muse Pocket LT
  ALSA: hda - Add position_fix quirk for HP dv3
  ALSA: hda - Add a pin-fix for FSC Amilo Pi1505
  ALSA: hda - Fix Cxt5047 test mode
  ASoC: pxa/raumfeld: adopt new snd_soc_dai_set_pll() API
  ASoC: sh: fsi: Add runtime PM support
  sh: ms7724se: Add runtime PM support for FSI
  ALSA: hda - Add a position_fix quirk for MSI Wind U115
  ALSA: opti-miro: add PnP detection
  ALSA: opti-miro: separate comon probing code
  ...
2009-12-08 07:47:46 -08:00
Linus Torvalds
1557d33007 Merge git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/sysctl-2.6
* git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/sysctl-2.6: (43 commits)
  security/tomoyo: Remove now unnecessary handling of security_sysctl.
  security/tomoyo: Add a special case to handle accesses through the internal proc mount.
  sysctl: Drop & in front of every proc_handler.
  sysctl: Remove CTL_NONE and CTL_UNNUMBERED
  sysctl: kill dead ctl_handler definitions.
  sysctl: Remove the last of the generic binary sysctl support
  sysctl net: Remove unused binary sysctl code
  sysctl security/tomoyo: Don't look at ctl_name
  sysctl arm: Remove binary sysctl support
  sysctl x86: Remove dead binary sysctl support
  sysctl sh: Remove dead binary sysctl support
  sysctl powerpc: Remove dead binary sysctl support
  sysctl ia64: Remove dead binary sysctl support
  sysctl s390: Remove dead sysctl binary support
  sysctl frv: Remove dead binary sysctl support
  sysctl mips/lasat: Remove dead binary sysctl support
  sysctl drivers: Remove dead binary sysctl support
  sysctl crypto: Remove dead binary sysctl support
  sysctl security/keys: Remove dead binary sysctl support
  sysctl kernel: Remove binary sysctl logic
  ...
2009-12-08 07:38:50 -08:00
Jiri Kosina
d014d04386 Merge branch 'for-next' into for-linus
Conflicts:

	kernel/irq/chip.c
2009-12-07 18:36:35 +01:00
Adam Buchbinder
6070d81eb5 tree-wide: fix misspelling of "definition" in comments
"Definition" is misspelled "defintion" in several comments; this
patch fixes them. No code changes.

Signed-off-by: Adam Buchbinder <adam.buchbinder@gmail.com>
Signed-off-by: Jiri Kosina <jkosina@suse.cz>
2009-12-04 23:41:47 +01:00
Takashi Iwai
baf9226667 Merge branch 'topic/asoc' into for-linus 2009-12-04 16:22:41 +01:00
Magnus Damm
6a5a0b9139 sh: include empty zero page in romImage
This patch updates the romImage code to include the
empty_zero_page contents from vmlinux. Without this
patch the empty zero page is lef uninitialized.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-04 16:26:20 +09:00
Paul Mundt
6e8a0d11a0 sh: Make associative cache writes fatal on all SH-4A parts.
Now that associative cache writes are no longer needed by the SH-4/SH-4A
cache flush code, associative write support can be explicitly disabled
for all SH-4A parts. This makes any associative write throw an exception,
as this behaviour can not be assumed to exist on future parts.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-04 16:22:11 +09:00
Matt Fleming
a781d1e5ff sh: Drop associative writes for SH-4 cache flushes.
When flushing/invalidating the icache/dcache via the memory-mapped IC/OC
address arrays, the associative bit should only be used in conjunction with
virtual addresses. However, we currently flush cache lines based on physical
address, so stop using the associative bit.

It is a better strategy to use non-associative writes (and physical tags) for
flushing the caches anyway, because flushing by virtual address (as with the
A-bit set) requires a valid TLB entry for that virtual address. If one does not
exist in the TLB no exception is generated and the flush is silently ignored.

This is also future-proofing for SH-4A parts which are gradually phasing out
associative writes to the cache array due to the aforementioned case of certain
flushes silently turning in to nops.

Signed-off-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-04 16:18:11 +09:00
Paul Mundt
7e01c94998 sh: Partial revert of copy/clear_user_highpage() optimizations.
These still require more testing, so revert them for now. We keep the
off-by-1 in the fixmap colouring and drop the rest.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-04 15:14:52 +09:00
Paul Mundt
8144a7dd51 sh: Add default uImage rule for se7724, ap325rxa, and migor.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-04 13:57:40 +09:00
Magnus Damm
a65d0d79c4 sh: allow runtime pm without suspend/resume callbacks
This patch updates the Runtime PM code for SuperH Mobile
to allow drivers to have NULL as pm or callback value.
With this in place there is no need for no-op functions.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-04 13:42:37 +09:00
Kuninori Morimoto
1c2e36cc9b sh: mach-ecovec24: Remove un-defined settings for VPU
The setting of VPU need not be changed from default.
And current setting value is not defined on SH7724

Reported-by:   Goda Yusuke <goda.yusuke@renesas.com>
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-04 13:42:34 +09:00
Kuninori Morimoto
82b3322178 sh: mach-ecovec24: LCDC drive ability become high
Drive ability for LCDC become high for safety,
became there is strange individual specificity board in mass production

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-04 13:42:32 +09:00
Magnus Damm
7e213481d6 sh: fix sh7724 VEU3F resource size
Fix one-off VEU3F size error for sh7724.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-12-04 13:42:29 +09:00
Jens Axboe
220d0b1dbf Merge branch 'master' into for-2.6.33 2009-12-03 13:49:39 +01:00
Takashi Iwai
b00615d163 Merge branch 'topic/pcm-dma-fix' into topic/core-change 2009-12-01 15:58:15 +01:00
Takashi Iwai
75639e7ee1 Merge branch 'topic/beep-rename' into topic/core-change 2009-12-01 15:58:10 +01:00
Kuninori Morimoto
d53bd80cb3 sh: ms7724se: Add runtime PM support for FSI
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
2009-11-30 12:56:44 +00:00
Magnus Damm
e6d8460aca sh: Improve kfr2r09 serial port setup code
This patch improves the serial port communication quality
of port YC401 on the KFR2R09 board. With this fix serial
console is fine at 115200 - up and down keys now work as
expected. Thanks to Hirohide Yamasaki for this fix.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-30 12:02:55 +09:00
Magnus Damm
fae4339919 sh: Break out SuperH PFC code
This file breaks out the SuperH PFC code from
arch/sh/kernel/gpio.c + arch/sh/include/asm/gpio.h
to drivers/sh/pfc.c + include/linux/sh_pfc.h.

Similar to the INTC stuff. The non-SuperH specific
file location makes it possible to share the code
between multiple architectures.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-30 12:02:53 +09:00
Magnus Damm
fc1d003de3 sh: Move KEYSC header file
This patch moves the KEYSC header file from the
SuperH specific asm directory to a place where
it can be shared by multiple architectures.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-30 12:02:51 +09:00
Alexey Dobriyan
9a1607071c sh: convert /proc/cpu/aligmnent, /proc/cpu/kernel_alignment to seq_file
Signed-off-by: Alexey Dobriyan <adobriyan@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-30 12:02:50 +09:00
Magnus Damm
2ebe0ff7e6 sh: Add CPG save/restore code for sh7724 R-standby
Add sh7724 code to save and restore CPG state during
R-standby. Only CPG registers IRDACLKCR and SPUCLKCR
require software save and restore.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-30 12:02:49 +09:00
Magnus Damm
98779ad822 sh: Add SDHI power control support to Ecovec
This patch adds support for SDHI power control to the
Ecovec board. Platform data and power control callbacks
for SDHI0 and SDHI1 are added. Power is by default off.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-30 12:02:48 +09:00
Kuninori Morimoto
c60f55fa1f sh: mach-ecovec24: modify address map
ecovec24 board expect address map 2 instead of map 1

Signed-off-by: Mizukawa Tatsuo <mizukawa.tatsuo@renesas.com>
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-30 12:01:23 +09:00
Ilya Loginov
2d4dc890b5 block: add helpers to run flush_dcache_page() against a bio and a request's pages
Mtdblock driver doesn't call flush_dcache_page for pages in request.  So,
this causes problems on architectures where the icache doesn't fill from
the dcache or with dcache aliases.  The patch fixes this.

The ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE symbol was introduced to avoid
pointless empty cache-thrashing loops on architectures for which
flush_dcache_page() is a no-op.  Every architecture was provided with this
flush pages on architectires where ARCH_IMPLEMENTS_FLUSH_DCACHE_PAGE is
equal 1 or do nothing otherwise.

See "fix mtd_blkdevs problem with caches on some architectures" discussion
on LKML for more information.

Signed-off-by: Ilya Loginov <isloginov@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: David Woodhouse <dwmw2@infradead.org>
Cc: Peter Horton <phorton@bitbox.co.uk>
Cc: "Ed L. Cashin" <ecashin@coraid.com>
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
2009-11-26 09:16:19 +01:00
Paul Mundt
6ba653830c sh: Fix up the FPU emulation build.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-25 12:07:31 +09:00
Paul Mundt
0f09e197a3 sh: Apply the sleazy FPU changes for SH-2A FPU as well.
This plugs in the fpu_counter manipulation for the SH-2A side also.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-24 17:56:17 +09:00
Stuart Menefy
d3ea9fa0a5 sh: Minor optimisations to FPU handling
A number of small optimisations to FPU handling, in particular:

 - move the task USEDFPU flag from the thread_info flags field (which
   is accessed asynchronously to the thread) to a new status field,
   which is only accessed by the thread itself. This allows locking to
   be removed in most cases, or can be reduced to a preempt_lock().
   This mimics the i386 behaviour.

 - move the modification of regs->sr and thread_info->status flags out
   of save_fpu() to __unlazy_fpu(). This gives the compiler a better
   chance to optimise things, as well as making save_fpu() symmetrical
   with restore_fpu() and init_fpu().

 - implement prepare_to_copy(), so that when creating a thread, we can
   unlazy the FPU prior to copying the thread data structures.

Also make sure that the FPU is disabled while in the kernel, in
particular while booting, and for newly created kernel threads,

In a very artificial benchmark, the execution time for 2500000
context switches was reduced from 50 to 45 seconds.

Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-24 17:45:38 +09:00
Stuart Menefy
39ac11c160 sh: Improve performance of SH4 versions of copy/clear_user_highpage
The previous implementation of clear_user_highpage and copy_user_highpage
checked to see if there was a D-cache aliasing issue between the user
and kernel mappings of a page, but if there was they always did a
flush with writeback on the dirtied kernel alias.

However as we now have the ability to map a page into kernel space
with the same cache colour as the user mapping, there is no need to
write back this data.

Currently we also invalidate the kernel alias as a precaution, however
I'm not sure if this is actually required.

Also correct the definition of FIX_CMAP_END so that the mappings created
by kmap_coherent() are actually at the correct colour.

Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-24 17:13:35 +09:00
Paul Mundt
49fb2cd257 Merge branch 'master' into sh/st-integration 2009-11-24 16:32:11 +09:00
Stuart Menefy
dfc349402d sh: Optimised memset for SH4
Optimised version of memset for the SH4 which uses movca.l.

Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-24 16:28:43 +09:00
Giuseppe CAVALLARO
a0458b07c1 sh: add sleazy FPU optimization
sh port of the sLeAZY-fpu feature currently implemented for some architectures
such us i386.

Right now the SH kernel has a 100% lazy fpu behaviour.
This is of course great for applications that have very sporadic or no FPU use.
However for very frequent FPU users...  you take an extra trap every context
switch.
The patch below adds a simple heuristic to this code: after 5 consecutive
context switches of FPU use, the lazy behavior is disabled and the context
gets restored every context switch.
After 256 switches, this is reset and the 100% lazy behavior is returned.

Tests with LMbench showed no regression.
I saw a little improvement due to the prefetching (~2%).

The tests below also show that, with this sLeazy patch, indeed,
the number of FPU exceptions is reduced.
To test this. I hacked the lat_ctx LMBench to use the FPU a little more.

   sLeasy implementation
   ===========================================
   switch_to calls            |  79326
   sleasy   calls             |  42577
   do_fpu_state_restore  calls|  59232
   restore_fpu   calls        |  59032

   Exceptions:  0x800 (FPU disabled  ): 16604

   100% Leazy (default implementation)
   ===========================================
   switch_to  calls            |  79690
   do_fpu_state_restore calls  |  53299
   restore_fpu  calls          |   53101

   Exceptions: 0x800 (FPU disabled  ):  53273

Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: Stuart Menefy <stuart.menefy@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-24 16:23:38 +09:00
David S. Miller
3505d1a9fd Merge branch 'master' of master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6
Conflicts:
	drivers/net/sfc/sfe4001.c
	drivers/net/wireless/libertas/cmd.c
	drivers/staging/Kconfig
	drivers/staging/Makefile
	drivers/staging/rtl8187se/Kconfig
	drivers/staging/rtl8192e/Kconfig
2009-11-18 22:19:03 -08:00
Eric W. Biederman
6d4561110a sysctl: Drop & in front of every proc_handler.
For consistency drop & in front of every proc_handler.  Explicity
taking the address is unnecessary and it prevents optimizations
like stubbing the proc_handlers to NULL.

Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Joe Perches <joe@perches.com>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2009-11-18 08:37:40 -08:00
Paul Mundt
260af56271 Merge branch 'sh/stable-updates' 2009-11-18 10:53:52 +09:00
Thomas Gleixner
648f15345a sh: Fixup last users of irq_chip->typename
The typename member of struct irq_chip was kept for migration purposes
and is obsolete since more than 2 years. Fix up the leftovers.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-sh@vger.kernel.org
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-18 10:50:22 +09:00
Eric W. Biederman
bb9074ff58 Merge commit 'v2.6.32-rc7'
Resolve the conflict between v2.6.32-rc7 where dn_def_dev_handler
gets a small bug fix and the sysctl tree where I am removing all
sysctl strategy routines.
2009-11-17 01:01:34 -08:00
Paul Mundt
1dca899e95 sh: dma: Kill off bogus dma_sysclass symbol export.
This is a static symbol, so the export is wholly superfluous. Recent
kbuild updates flagged this as an error, resulting in build failure,
so this tidies that up.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-13 12:29:19 +09:00
Eric W. Biederman
a09b6e8118 sysctl sh: Remove dead binary sysctl support
Now that sys_sysctl is a generic wrapper around /proc/sys  .ctl_name
and .strategy members of sysctl tables are dead code.  Remove them.

Also add an C99 named initializer to the child member of unaligned_root
to prevent chaos as the ctl_table definition changes over time.

Cc: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Eric W. Biederman <ebiederm@xmission.com>
2009-11-12 02:05:03 -08:00
Paul Mundt
3af539e59c sh64: Fix up reworked cache op build.
This gets the build fixed up for the sh64 cache enabled case.
Disabling still needs further abstraction for independent I/D-cache
disabling.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-12 17:03:28 +09:00
Paul Mundt
626ac8e138 sh64: Fix up the CONFIG_GENERIC_BUG=n build.
sh64 doesn't use GENERIC_BUG, which presently causes the handle_BUG()
code to blow up. Fix up the dependencies and get it all building again.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-12 16:39:47 +09:00
Paul Mundt
e9c58fc57b sh: Use the generic I/O port base for slowdown.
This fixes up the build and behaviour for various configurations. Namely
the CONFIG_32BIT cases where legacy mappings do not exist, as well as the
sh64 build.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-12 16:36:26 +09:00
Paul Mundt
c4e708dc52 sh: Fix up the CONFIG_PERF_EVENTS=n build for SH-4.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-12 16:20:36 +09:00
Paul Mundt
a4d9d0b8a8 sh: Enable PMB support for all SH-4A CPUs.
Presently the PMB options were limited to a number of CPUs they were
tested with, but it is generally available on all SH-4A CPUs, so just
drop the subtype conditionals.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-11 10:56:13 +09:00
Paul Mundt
0fe69d773f sh: perf events: Document SH-4A raw event codes.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-09 14:11:07 +09:00
Paul Mundt
76d2318020 Merge branch 'sh/stable-updates' 2009-11-09 10:55:36 +09:00
Thomas Gleixner
969e46a853 sh: Replace old style lock initializer
SPIN_LOCK_UNLOCKED is deprecated. Use __SPIN_LOCK_UNLOCKED instead.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-sh@vger.kernel.org
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-09 10:47:40 +09:00
Matt Fleming
a9d244a2ff sh: Account for cache aliases in flush_icache_range()
The icache may also contain aliases so we must account for them just
like we do when manipulating the dcache. We usually get away with
aliases in the icache because the instructions that are read from memory
are read-only, i.e. they never change. However, the place where this
bites us is when the code has been modified.

Signed-off-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-09 10:45:30 +09:00
Paul Mundt
421b541110 sh: unwinder: Fix up invalid PC refetch in dwarf unwinder.
The dwarf unwinder presently attempts to provide a sane PC value if none
is provided, however the logic is broken and cases where a previous valid
dwarf frame exists along with a bogus PC value can still proceed. This
fixes up the test and prevents the unwinder from blowing up.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-06 17:23:33 +09:00
Paul Mundt
e9c4148fd4 sh: oprofile: Fix up count size mismatch for common impl.
This reduces the 'count' size in the common support structure to 32-bits
so that it matches up with what oprofile is expecting. The SH7750 code
was using a nasty oprofilefs hack to expose the 48-bit counter, although
no other implementations were. Now that the offending driver has been
killed off, it's possible to restore some semblance of sanity.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-05 17:13:15 +09:00
Paul Mundt
093aed1937 sh: oprofile: Kill off bitrotted SH7750 driver.
This kills off the old SH7750 oprofile driver, preferring perf instead.
As this driver has a number of bugs that no one seems to have noticed,
it's safe to kill this off now rather than providing an extended
transition period.

The old oprofile framework is still kept in place for now, primarily to
give out-of-tree drivers a chance to transition off. But this too will be
killed off in short order.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-05 17:09:59 +09:00
Paul Mundt
1d823323f2 sh: perf events: Add support for SH7750-style counters.
This adds perf events support for the SH7750/SH7750S/SH7091 performance
counters.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-05 17:02:03 +09:00
Paul Mundt
830fafecc2 sh: perf events: Preliminary callchain support.
This implements preliminary support for perf callchains (at the moment
only the kernel side is implemented). The actual implementation itself is
just a simple wrapper around the unwinder API, which allows for callchain
generation with or without the dwarf unwinder.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-05 16:20:09 +09:00
Paul Mundt
d1b261ef85 sh: Default-enable SPU clock for SH7724.
Wanted by the SPU2 UIO driver, which really ought to be handling this
itself. Default enable it for now, until the driver gets a bit more
intelligent.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-05 14:06:36 +09:00
Kuninori Morimoto
2de339231b sh: sh7724: Add SPU2 support
Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-05 13:58:46 +09:00
Paul Mundt
8820002c18 sh: perf events: Fix up uninitialized variable warning.
'config' can be unintialized, and although it's not really an error, it
still manages to trigger the -Werror with certain toolchains. Initialize
it early to shut up gcc.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-05 13:56:50 +09:00
Rafael Ignacio Zurita
9dcaa7b25f ALSA: sh: add SuperH DAC audio driver for ALSA V4
This is a port of the sound/oss/sh_dac_audio.c driver.
The driver uses an on-chip 8-bit D/A converter, which has a speaker connected
to one of its channels, found in several ancient HP machines.
For interrupts it uses a high-resolution timer (hrtimer).
Tested on SH7709 based hp6xx (HP Jornada 680/690 and HP Palmtop 620lx/660lx).

Also, since OSS Emulation works, the old OSS sound/oss/sh_dac_audio.c driver
would be obsolete soon, and it could be removed.

Signed-off-by: Rafael Ignacio Zurita <rizurita@yahoo.com>
Acked-by: Paul Mundt <lethal@linux-sh.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2009-11-04 09:17:40 +01:00
Roel Kluin
9016332014 sh: Make sure indexes are positive
The indexes are signed, make sure they are not negative
when we read array elements.

Signed-off-by: Roel Kluin <roel.kluin@gmail.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-04 11:48:07 +09:00
Magnus Damm
c4b973f532 sh: Add RWDT save/restore code for sh7724 R-standby
Add sh7724 code to save and restore RWDT state during
R-standby. Without this patch the watchdog will generate
a reset shortly after resuming from R-standby.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-04 11:48:05 +09:00
Paul Mundt
a37c6c7aec sh: mach-se: Convert SE7722 FPGA to dynamic IRQ allocation.
This gets rid of the arbitrary set of vectors used by the SE7722 FPGA
interrupt controller and witches over to a completely dynamic set.
No assumptions regarding a contiguous range are made, and the platform
resources themselves need to be filled in lazily.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-04 11:44:21 +09:00
Paul Mundt
45b9deaf14 sh: intc: Handle legacy IRQ reservation in vector map.
Different CPUs will have different starting vectors, with varying
amounts of reserved or unusable vector space prior to the first slot.
This introduces a legacy vector reservation system that inserts itself in
between the CPU vector map registration and the platform specific IRQ
setup. This works fine in practice as the only new vectors that boards
need to establish on their own should be dynamically allocated rather
than arbitrarily assigned. As a plus, this also makes all of the
converted platforms sparseirq ready.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-02 15:43:20 +09:00
Magnus Damm
3d0de41442 sh: Remove unused WP signal for SDHI0 and KFR2R09
Get rid of the unused WP signal for SDHI0 on KFR2R09.
This because yc304 on KFR2R09 is a Micro SD slot which
does not implement the WP signal.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-02 14:19:29 +09:00
Magnus Damm
8b431a7e66 sh: Add SDHI1 support to the AP325RXA board
Update the SDHI platform data for the AP325RXA board
to include support for the CN7 Micro SD Card slot.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-11-02 14:19:28 +09:00
Magnus Damm
58ee987e2f sh: Add KFR2R09 specific memory pre/post R-standby code
Add R-standby support to the KFR2R09 sdram code.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-30 14:38:49 +09:00
Magnus Damm
bb3e0eed9d sh: Add R-standby sleep mode support
Add R-standby specific bits to the SuperH Mobile sleep code.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-30 14:38:45 +09:00
Magnus Damm
03625e7107 sh: Use RSMEM for sleep code on sh7724
Use RSMEM instead of ILMEM for sleep mode code storage on SH7724.
This allows us to use R-standby mode on SH7724.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-30 14:38:33 +09:00
Magnus Damm
99675a7a45 sh: Add MMU and Cache handling sleep mode code
Add MMU and cache handling functionality to the SuperH Mobile
sleep code. The MMU and cache registers are saved and restored.
The MMU is disabled and the cache is flushed and disabled before
entering sleep modes if the SUSP_SH_MMU flag is set. This flag
should be set in the case of R-standby and most likely for future
U-standby support as well.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-30 14:37:56 +09:00
Magnus Damm
02bf89347c sh: Keep track of allowed sleep modes
Add code to keep track of supported sleep modes. This to
only export cpuidle modes that are backed by board support
code. Also, do not allow suspend-to-ram if sdram board code
is missing.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-30 14:37:42 +09:00
Magnus Damm
323ef8dba6 sh: Rework SuperH Mobile sleep mode code
Rework the SuperH Mobile sleep code from including
board specific code to allowing each board to provide
pre/post code snippets. These snippets should contain
sdram management code to enter and leave self-refresh.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-30 14:36:52 +09:00
Magnus Damm
eb0cd9e88c sh: Add Ecovec24 specific memory pre/post sleep code
Add self-refresh handling code for the Ecovec24 board.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-30 14:33:46 +09:00
Magnus Damm
86c7d03a0f sh: Add ap325rxa specific memory pre/post sleep code
Add self-refresh handling code for the AP325RXA board.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-30 14:33:44 +09:00
Magnus Damm
53528928d1 sh: Move ap325rxa board code into separate directory
Move the AP325RXA board code from a single board file
to a separate directory. This to make it easy to add
support for sdram sleep mode code.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-30 14:33:43 +09:00
Magnus Damm
13fa551b5e sh: Add migor specific memory pre/post sleep code
Add self-refresh handling code for the Migo-R board.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-30 11:59:27 +09:00
Magnus Damm
3b9f2952a3 sh: Add ms7724se specific memory pre/post sleep code
Add self-refresh handling code for the MS7724SE board.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-30 11:59:26 +09:00
Magnus Damm
67e522d0f9 sh: Add kfr2r09 specific memory pre/post sleep code
Add self-refresh handling code for the KFR2R09 board.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-30 11:59:26 +09:00
Magnus Damm
159f8cd99e sh: Allow boards to register memory pre/post sleep code
Add code to allow boards registering self-contained
functions for going to/from self-refresh. At this
point the board code is unused. When all supported
boards have been converted then the new sleep code
will make use of these functions.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-30 11:55:24 +09:00
Magnus Damm
da14909eb0 sh: Add sh7724 notifier for R-standby save/restore
Make use of the recently added notifier chains for sh7724
r-standby register save/restore handling. At this point
only the BSC and INTC are handled.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-30 11:55:14 +09:00
Magnus Damm
49f42644fd sh: Add notifiers chains for cpu/board code
This patch adds atomic notifier chains for pre/post
sleep events. Useful for cpu code and boards that
need to save and restore register state before and
after entering a sleep mode.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-30 11:54:59 +09:00
Matt Fleming
eb3118f652 sh: Do not apply virt_to_phys() to a physical address
The variable 'phys' already contains the physical address to flush. It
is not a virtual address and should not be passed to virt_to_phys().

Signed-off-by: Matt Fleming <matt@console-pimps.org>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-30 11:53:22 +09:00
Paul Mundt
1d317f90d9 sh: perf events: Kill off left over debugging cruft.
num_events should be compared > MAX_HWEVENTS and not >=. The latter was
used as a debugging test which accidentally slipped in.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-28 18:02:15 +09:00
Paul Mundt
ac44e66947 sh: perf events: Add preliminary support for SH-4A counters.
This adds in preliminary support for the SH-4A performance counters.
Presently only the first 2 counters are supported, as these are the ones
of the most interest to the perf tool and end users. Counter chaining is
not presently handled, so these are simply implemented as 32-bit
counters.

This also establishes a perf event support framework for other hardware
counters, which the existing SH-4 oprofile code will migrate over to as
the SH-4A support evolves.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-28 17:57:54 +09:00
Kuninori Morimoto
3714a9a026 sh: mach-ecovec24: Add USB1 gadget support
USB1 can change to host/function by checking PTB3.
This patch add USB1 gadget support and check PTB3 when boot,
and change name to usb1_common_XXX from usb1_host_XXX.

Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-28 16:07:19 +09:00
Magnus Damm
5b380ec11d sh: add SDHI1 support to ms7724se
Add support for cn8 and SDHI1 to the ms7724se board.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-28 09:18:24 +09:00
Magnus Damm
8013cc9a5d sh: mac address through private data for sh_eth on ms7724se
Convert the ms7724se board code to pass the mac
address to the sh_eth driver using platform data.

Signed-off-by: Magnus Damm <damm@opensource.se>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-28 09:18:24 +09:00
Paul Mundt
9b3b21f788 Merge branch 'sh/stable-updates' 2009-10-27 17:10:24 +09:00
Paul Mundt
72f0c137a5 sh: enable PERF_USE_VMALLOC across the board.
The vast majority of SH platforms want this, and the few that don't
aren't going to care one way or the other. Enable it across the board.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-27 17:08:55 +09:00
Paul Mundt
94c285108e sh: Bump up dma_ops initialization far earlier in the boot process.
Presently this was tacked on to the dma debug init bits from
fs_initcall(), which is far too late for devices setting up their own
per-device coherent areas.

Throw this in the beginning of mem_init(), as per the x86 iommu
allocation.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-27 17:07:45 +09:00
Paul Mundt
4c978ca319 sh: Clean up more superfluous symbol exports.
Many of these symbols went away completely, or we just never cared about
them in the first place. Trim the exports down to the essential set.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-27 11:51:19 +09:00
Paul Mundt
0a993b0a29 sh64: cache flush symbol exports.
These were previously hidden in sh_ksyms_32, despite also being needed
for sh64 now that the cache.c code is shared.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-27 10:51:35 +09:00
Paul Mundt
478fb15800 sh: Fix up dma_is_consistent().
This fixes up the dma_is_consistent() definition for the various
coherence options.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-27 10:41:58 +09:00
Paul Mundt
7693465d81 sh: Kill off superfluous arch/sh/drivers/pci/Kconfig.
Now that this contains a grand total of 1 Kconfig option, it's hardly
worth keeping split out. Roll CONFIG_PCI back in to the top-level
architecture Kconfig, along with the other bus types.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-27 10:36:55 +09:00
Paul Mundt
01be5d63fd sh: Revamp PCI DMA coherence Kconfig bits.
Leaving this configurable caused more trouble than it was ever worth, so
just make it explicit. Boards that are verified one way or the other can
fix up their selects accordingly. We presently default to non-coherent
for most platforms.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
2009-10-27 10:35:02 +09:00