11 Mar, 2011
5 commits
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On the newer ARM processors like CortexA8, CortexA9, the caches can be
speculatively loaded while they are getting flushed.Clear the SCTLR C bit to prevent further data cache allocation as
part of cache clean routineSigned-off-by: Santosh Shilimkar
Signed-off-by: Kevin Hilman -
The current code saves few un-necessary registers which are read-only or
write-only, unused CP15 registers.Remove them and keep only necessary CP15 registers part of
low power context save/restore.Signed-off-by: Santosh Shilimkar
Signed-off-by: Kevin Hilman -
When L1 cache is suppose to be lost, it needs to be cleaned before
entrering to the low power mode.While at this, also fix few comments and remove un-necessary
clean_l2 lable.Signed-off-by: Santosh Shilimkar
Signed-off-by: Kevin Hilman -
Add necessary barriers after enabling MMU. Also use the sane way to
load pc and jump to it instead of executing ldma first up.Signed-off-by: Santosh Shilimkar
Signed-off-by: Kevin Hilman -
On ARMv7 dsb, dmb instructions are supported and can be used directly
instead of their cp15 equivalnet. Also remove the opcodes for smc
and use the available instruction directly in OMAP3 low power asm codeSigned-off-by: Santosh Shilimkar
Signed-off-by: Kevin Hilman
10 Mar, 2011
17 commits
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omap_sr_probe() creates the smartreflex debug directory and its
underlying nvalue debug directory. These directories are removed in
omap_sr_remove().Basic smartreflex functionality tested on OMAP3630 Zoom3 & OMAP4430 SDP
Signed-off-by: Anand S Sawant
Signed-off-by: Kevin Hilman -
* Build unconditionally as ARM for correct interoperation with
OMAP firmware.* Fix an out-of-range ADR when building for ARM.
* Remove deprecated PC-relative stores.
* Add the required ENDPROC() directive for each ENTRY().
* .align before data words.
* Handle non-interworking return from v7_flush_dcache_all.
Signed-off-by: Dave Martin
Signed-off-by: Kevin Hilman -
* Build unconditionally as ARM for correct interoperation with
OMAP firmware.* Remove deprecated PC-relative stores
* Add the required ENDPROC() directive for each ENTRY().
* .align before data words
Signed-off-by: Dave Martin
Tested-by: Jean Pihet
Signed-off-by: Kevin Hilman -
For various reasons, Linux now only officially supports being built
with tools which are new enough to understand the SMC instruction.Replacing the hand-encoded instructions when the mnemonic also
allows for correct assembly in Thumb-2 (otherwise, the result is
random data in the middle of the code).The Makefile already ensures that this file is built with a high
enough gcc -march= flag (armv7-a).Signed-off-by: Dave Martin
Tested-by: Santosh Shilimkar
Tested-by: Jean Pihet
Signed-off-by: Kevin Hilman -
Code marked with ENTRY() also needs a matching ENDPROC() directive,
in order to ensure that the type and instruction set of the
symbol are correctly annotated.ENDPROC() tags the affected symbol as a function symbol, which will
ensure that link-time fixups don't accidentally switch to the
wrong instruction set.Signed-off-by: Dave Martin
Tested-by: Santosh Shilimkar
Acked-by: Santosh Shilimkar
Signed-off-by: Kevin Hilman -
For CONFIG_THUMB2_KERNEL, the existing definition of do_wfi() will
insert invalid code into the instruction stream.Any assembler which can assemble Thumb-2 is guaranteed to accept
the "wfi" mnemonic, so for the Thumb-2 case, just use the mnemonic.The ARM case is left as-is.
Signed-off-by: Dave Martin
Signed-off-by: Kevin Hilman -
IVA device is not present in many OMAP3 variants.
This patch ensures that initialization is tied to
the presence of IVA on the device.Signed-off-by: Sanjeev Premi
Signed-off-by: Kevin Hilman -
Voltage control on TWL can be done using VMODE/I2C1/I2C_SR.
Since almost all platforms use I2C_SR on omap3, omap3_twl_init by
default expects that OMAP's I2C_SR is plugged in to TWL's I2C
and calls omap3_twl_set_sr_bit. On platforms where I2C_SR is not connected,
the board files are expected to call omap3_twl_set_sr_bit(false) to
ensure that I2C_SR path is not set for voltage control and prevent
the default behavior of omap3_twl_init.Signed-off-by: Nishanth Menon
Signed-off-by: Thara Gopinath
Signed-off-by: Shweta Gulati
Cc: linux-arm-kernel@lists.infradead.org
Signed-off-by: Kevin Hilman -
Add a description field to each idle C-state. This helps to give
better data with PowerTop and one don't have to refer to the code
to link what Cx means from system point of view while analysing
PowerTop data.No functional change.
Signed-off-by: Santosh Shilimkar
Cc: Kevin Hilman
Signed-off-by: Kevin Hilman -
Remove the custom restore_control_register() and use the exported
set_cr() instead to set the system control register(SCTRL) value.No functional change.
Signed-off-by: Santosh Shilimkar
Cc: Kevin Hilman
Signed-off-by: Kevin Hilman -
The OMAP2 and OMAP3 PM code clears clockdomain wakeup and sleep
dependencies. This is unnecessary after commit
6f7f63cc9adf3192e6fcac4e8bed5cc10fd924aa ("OMAP clockdomain:
initialize clockdomain registers when the clockdomain layer starts")
which clears these dependencies during clockdomain init.Signed-off-by: Paul Walmsley
Signed-off-by: Kevin Hilman -
Now that omap_hwmod + omap_device is used for OMAP UART device and
driver code, we no longer need the UART physical addresses in
omap_globals.Note that the #defines for the base addresses are still left in
since they are used by DEBUG_LL and uncompress code.Build tested for OMAP1 (omap1_defconfig) and OMAP2+ (omap2plus_defconfig)
Signed-off-by: Kevin Hilman
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kzalloc() may fail, if so return -ENOMEM. Also Walter Harms suggested
to use kasprintf() instead of kzalloc+strcpy+strcat.Signed-off-by: Vasiliy Kulikov
Signed-off-by: Kevin Hilman -
OMP3630 silicon can enable higher frequencies only depending on the board
characteristics meeting the recommended standards, and has to be selectively
toggled.Beagle XM uses 3730 variant and the board design allows enabling 800MHz and
1GHz OPPs. However, We need Smart reflex class 1.5 and ABB to enable 1GHz
safely. For the moment, we tweak the default table to allow for 800Mhz OPP
usage.Reported-by: Koen Kooi
Tested-by: Koen KooiSigned-off-by: Nishanth Menon
Signed-off-by: Kevin Hilman -
omap3 and omap4 opp_init should be made non-static to allow
for platform specific opp table tweaking. making these static
conflicts with the definition in pm.h(global) as well.
we include pm.h as well to ensure that there are no such prototype
conflicts with actual implementation in the future.Signed-off-by: Nishanth Menon
Signed-off-by: Kevin Hilman -
In case in user has a OMAP3630 < ES1.2 the kernel should warn the user
about the ERRATUM, but using pr_warn instead of WARN_ON is already
enough, as there is nothing else the user can do besides changing the
board.Signed-off-by: Ricardo Salveti de Araujo
Signed-off-by: Kevin Hilman -
Change my email to TI email address for OMAP PM maintenance.
Signed-off-by: Kevin Hilman
08 Mar, 2011
12 commits
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…git/kgene/linux-samsung
* 's5p-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: S3C64XX: Update regulator names for debugfs compatiblity on SMDK6410
ARM: S3C64XX: Fix build with WM1190 disabled and WM1192 enabled on SMDK6410
ARM: S3C64XX: Reduce output of s3c64xx_dma_init1()
ARM: S3C64XX: Tone down SDHCI debugging
ARM: S3C64XX: Add clock for i2c1
ARM: S3C64XX: Staticise non-exported GPIO to interrupt functions
ARM: SAMSUNG: Include devs.h in dev-uart.c to prototype devices
ARM: S3C64XX: Fix keypad setup to configure correct number of rows
ARM: S3C2440: Fix usage gpio bank j pin definitions on GTA02
ARM: S5P64X0: Fix number of GPIO lines in Bank F
ARM: S3C2440: Select missing S3C_DEV_USB_HOST on GTA02 -
* 'fixes' of master.kernel.org:/home/rmk/linux-2.6-arm:
davinci: cpufreq: fix section mismatch warning
DaVinci: fix compilation warnings in
davinci: tnetv107x: fix register indexing for GPIOs numbers > 31
davinci: da8xx/omap-l1x: add platform device for davinci-pcm-audio
ARM: pxa/tosa: register wm9712 codec device
ARM: pxa: enable pxa-pcm-audio on pxa210/pxa25x platform
ARM: pxa/colibri: don't register pxa2xx-pcmcia nodes on non-colibri platforms
ARM: pxa/tosa: drop setting LED trigger name, as it's unsupported now
ARM: 6762/1: Update number of VIC for S5P6442 and S5PC100
ARM: 6761/1: Update number of VIC for S5PV210
ARM: 6768/1: hw_breakpoint: ensure debug logic is powered up on v7 cores
ARM: 6767/1: ptrace: fix register indexing in GETHBPREGS request
ARM: 6765/1: remove obsolete comment from asm/mach/arch.h
ARM: 6757/1: fix tlb.h induced linux/swap.h build failure -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/cjb/mmc:
mmc: sdio: Allow sdio operations in other threads during sdio_add_func() -
* 'drm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/airlied/drm-2.6:
drm: index i shadowed in 2nd loop
drm/nv50-nvc0: prevent multiple vm/bar flushes occuring simultanenously
drm/nouveau: fix regression causing ttm to not be able to evict vram
drm/i915: Rebind the buffer if its alignment constraints changes with tiling
drm/i915: Disable GPU semaphores by default
drm/i915: Do not overflow the MMADDR write FIFO
Revert "drm/i915: fix corruptions on i8xx due to relaxed fencing" -
Index i was already used in thhe first loop
Signed-off-by: Roel Kluin
Signed-off-by: Dave Airlie -
This fixes a bug introduced by 807e8e40673d ("mmc: Fix sd/sdio/mmc
initialization frequency retries") that prevented SDIO drivers from
performing SDIO commands in their probe routines -- the above patch
called mmc_claim_host() before sdio_add_func(), which causes a deadlock
if an external SDIO driver calls sdio_claim_host().Fix tested on an OLPC XO-1.75 with libertas on SDIO.
Signed-off-by: Dmitry Shmidt
Reviewed-and-Tested-by: Chris Ball
Signed-off-by: Chris Ball -
* ickle/drm-intel-fixes:
drm/i915: Rebind the buffer if its alignment constraints changes with tiling
drm/i915: Disable GPU semaphores by default
drm/i915: Do not overflow the MMADDR write FIFO
Revert "drm/i915: fix corruptions on i8xx due to relaxed fencing" -
…/git/tmlind/linux-omap-2.6
* 'omap-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap-2.6:
omap: mailbox: resolve hang issue
OMAP2+: PM: SmartReflex: fix memory leaks in Smartreflex driver
arm: mach-omap2: smartreflex: fix another memory leak -
* 'for-linus' of git://git390.marist.edu/pub/scm/linux-2.6:
[S390] tape: deadlock on system work queue
[S390] keyboard: integer underflow bug
[S390] xpram: remove __initdata attribute from module parameters -
The per-vm mutex doesn't prevent this completely, a flush coming from the
BAR VM could potentially happen at the same time as one for the channel
VM. Not to mention that if/when we get per-client/channel VM, this will
happen far more frequently.Signed-off-by: Ben Skeggs
Signed-off-by: Dave Airlie -
TTM assumes an error condition from man->func->get_node() means that
something went horribly wrong, and causes it to bail.The driver is supposed to return 0, and leave mm_node == NULL to
signal that it couldn't allocate any memory.Signed-off-by: Ben Skeggs
Signed-off-by: Dave Airlie
07 Mar, 2011
4 commits
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Early gen3 and gen2 chipset do not have the relaxed per-surface tiling
constraints of the later chipsets, so we need to check that the GTT
alignment is correct for the new tiling. If it is not, we need to
rebind.Reported-by: Daniel Vetter
Reviewed-by: Daniel Vetter
Signed-off-by: Chris Wilson -
Andi Kleen narrowed his GPU hangs on his Sugar Bay (SNB desktop) rev 09
down to the use of GPU semaphores, and we already know that they appear
broken up to Huron River (mobile) rev 08. (I'm optimistic that disabling
GPU semaphores is simply hiding another bug by the latency and
side-effects of the additional device interaction it introduces...)However, use of semaphores is a massive performance improvement... Only
as long as the system remains stable. Enable at your peril.Reported-by: Andi Kleen
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=33921
Signed-off-by: Chris Wilson -
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6:
ALSA: hda - Don't set to D3 in Cirrus errata init verbs
ALSA: hda - add new Fermi 5xx codec IDs to snd-hda
ASoC: WM8994: Ensure late enable events are processed for the ADCs
ASoC: WM8994: Don't disable the AIF[1|2]CLK_ENA unconditionaly
ASoC: Fix WM9081 platform data initialisation
ALSA: hda - Fix unable to record issue on ASUS N82JV
ALSA: HDA: Realtek: Fixup jack detection to input subsystem -
If a virtio-console device gets unplugged while a port is open, a
subsequent close() call on the port accesses vqs to free up buffers.
This can lead to a crash.The buffers are already freed up as a result of the call to
unplug_ports() from virtcons_remove(). The fix is to simply not access
vq information if port->portdev is NULL.Reported-by: juzhang
CC: stable@kernel.org
Signed-off-by: Amit Shah
Signed-off-by: Rusty Russell
Signed-off-by: Linus Torvalds
06 Mar, 2011
2 commits
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Whilst the GT is powered down (rc6), writes to MMADDR are placed in a
FIFO by the System Agent. This is a limited resource, only 64 entries, of
which 20 are reserved for Display and PCH writes, and so we must take
care not to queue up too many writes. To avoid this, there is counter
which we can poll to ensure there are sufficient free entries in the
fifo."Issuing a write to a full FIFO is not supported; at worst it could
result in corruption or a system hang."Reported-and-Tested-by: Matt Turner
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=34056
Signed-off-by: Chris Wilson
