Olof Johansson [Tue, 18 Dec 2012 02:40:51 +0000 (18:40 -0800)]
Merge tag 'imx-fixes-rc' of git://git.pengutronix.de/git/imx/linux-2.6 into fixes
From Sascha Hauer:
ARM i.MX fixes for v3.8-rc
This fixes a compile failure on imx_v4_v5_defconfig and a regression
introduced with enabling the MIPI clocks on i.MX51. Also one rather
cosmetic fix for the i.MX27 dts file.
* tag 'imx-fixes-rc' of git://git.pengutronix.de/git/imx/linux-2.6:
ARM: imx: Move platform-mx2-emma to arch/arm/mach-imx/devices
ARM i.MX51 clock: Fix regression since enabling MIPI/HSP clocks
ARM: dts: mx27: Fix the AIPI bus for FEC
Olof Johansson [Tue, 18 Dec 2012 02:39:47 +0000 (18:39 -0800)]
Merge tag 'omap-for-v3.8/fixes-for-merge-window-v4-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into fixes
From Tony Lindgren:
These patches fixes a build error caused by a merge
conflict with the fb code, few timer warnings, and longer
term regressions for tfp410 and omap h4 ethernet. Also
included is a GPIO mode fix for the legacy mux code.
* tag 'omap-for-v3.8/fixes-for-merge-window-v4-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap:
ARM: OMAP2+: common: remove use of vram
ARM: OMAP: Move plat/omap-serial.h to include/linux/platform_data/serial-omap.h
ARM: dts: Add build target for omap4-panda-a4
ARM: dts: OMAP2420: Correct H4 board memory size
mfd: omap-usb-host: get rid of cpu_is_omap..() macros
ARM: OMAP: Remove debug-devices.c
ARM: OMAP2420: Fix ethernet support for OMAP2420 H4
OMAP2+: mux: Fixed gpio mux mode analysis
OMAP: board-files: fix i2c_bus for tfp410
ARM: OMAP2+: Fix sparse warnings in timer.c
ARM: AM335x: Fix warning in timer.c
ARM: OMAP2+: Fix realtime_counter_init warning in timer.c
Olof Johansson [Tue, 18 Dec 2012 02:38:55 +0000 (18:38 -0800)]
Merge tag 'omap-fixes-a-for-v3.8-window' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending into fixes
From Paul Walmsley per Tony Lindgrens request:
Fix some OMAP4 clock problems, and deal with some sparse warnings from
the OMAP CPUIdle code.
* tag 'omap-fixes-a-for-v3.8-window' of git://git.kernel.org/pub/scm/linux/kernel/git/pjw/omap-pending:
ARM: OMAP3/4: cpuidle: fix sparse and checkpatch warnings
ARM: OMAP4: clock data: DPLLs are missing bypass clocks in their parent lists
ARM: OMAP4: clock data: div_iva_hs_clk is a power-of-two divider
ARM: OMAP4: Fix EMU clock domain always on
ARM: OMAP4460: Workaround ABE DPLL failing to turn-on
ARM: OMAP4: Enhance support for DPLLs with 4X multiplier
ARM: OMAP4: Add function table for non-M4X dplls
ARM: OMAP4: Update timer clock aliases
Maxime Ripard [Wed, 12 Dec 2012 16:08:23 +0000 (17:08 +0100)]
ARM: sunxi: Change device tree naming scheme for sunxi
There is several different SoCs sharing the sun5i codename: A10s, A12
and A13. Since there is enough differences to not consider those the
same SoCs, change a bit the naming scheme to reflect this.
Moreover, some boards like the olinuxino come in A10s and A13 variants,
which also share the same SoC codename.
So change the naming scheme to reflect both the codename and the market
name of the SoCs used in the dtsi and in the board files
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Olof Johansson <olof@lixom.net>
Linus Walleij [Fri, 14 Dec 2012 15:26:28 +0000 (16:26 +0100)]
ARM: ux500: fix missing include
Commit db298da2c31e1dcf7c9b7c9cef6217ad3449ebb7
"ARM: nomadik: move platform_data definition"
moved the Ux500-specific musb header from <mach/usb.h>
to <linux/platform_data/usb-musb-ux500.h>
However that makes some board code fail to compile
now:
CC arch/arm/mach-ux500/board-mop500.o
linux/arch/arm/mach-ux500/cpu-db8500.c: In function 'u8500_init_devices':
linux/arch/arm/mach-ux500/cpu-db8500.c:226:2: error: implicit declaration of function 'ux500_add_usb' [-Werror=implicit-function-declaration]
cc1: some warnings being treated as errors
make[3]: *** [arch/arm/mach-ux500/cpu-db8500.o] Error 1
make[3]: *** Waiting for unfinished jobs....
make[2]: *** [arch/arm/mach-ux500] Error 2
make[2]: *** Waiting for unfinished jobs....
So fix this up by adding the proper include file that
appears to have been brought in implicitly one or another
way in the past.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
Linus Walleij [Fri, 14 Dec 2012 14:17:02 +0000 (15:17 +0100)]
ARM: u300: delete custom pin hog code
With recent changes in the kernel, the MMCI and PL011 UART
drivers will autonomously request their pins to be muxed in,
so this machine-specific pin hogging code is just interfering
with the proper mechanism and causing regressions in the v3.8
kernel. Delete it and the problems go away.
Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Olof Johansson <olof@lixom.net>
Olof Johansson [Sun, 16 Dec 2012 06:20:58 +0000 (22:20 -0800)]
Merge tag 'tegra-for-3.8-fixes-for-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra into fixes
ARM: tegra: fixes for 3.8
This branch contains a few miscellaneous fixes that have shown up in the
last few weeks.
By Sivaram Nair (2) and Hiroshi Doyu (1)
via Stephen Warren
* tag 'tegra-for-3.8-fixes-for-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/swarren/linux-tegra:
amba: tegra-ahb: Fix warning w/o PM_SLEEP
ARM: tegra: fix comment in dsib clk set_parent
ARM: tegra: select correct parent clk for pll_p
Olof Johansson [Sat, 15 Dec 2012 19:10:25 +0000 (11:10 -0800)]
ARM: davinci: fix build break due to missing include
arch/arm/mach-davinci/board-da850-evm.c: In function 'da850_evm_init':
arch/arm/mach-davinci/board-da850-evm.c:1516:2: error: implicit declaration of function 'sram_get_gen_pool' [-Werror=implicit-function-declaration]
arch/arm/mach-davinci/board-da850-evm.c:1516:31: warning: assignment makes pointer from integer without a cast [enabled by default]
Signed-off-by: Olof Johansson <olof@lixom.net> Cc: Sekhar Nori <nsekhar@ti.com> Cc: Kevin Hilman <khilman@ti.com>
Olof Johansson [Sat, 15 Dec 2012 17:43:47 +0000 (09:43 -0800)]
ARM: exynos: Fix warning due to missing 'inline' in stub
In file included from arch/arm/mach-exynos/clock-exynos5.c:29:0:
arch/arm/mach-exynos/common.h:28:12: warning: 'exynos_pm_late_initcall' defined but not used [-Wunused-function]
Signed-off-by: Olof Johansson <olof@lixom.net> Cc: Kukjin Kim <kgene.kim@samsung.com> Cc: Shawn Guo <shawn.guo@linaro.org>
Linus Torvalds [Mon, 17 Dec 2012 16:27:59 +0000 (08:27 -0800)]
Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs
Pull ext3, udf, quota fixes from Jan Kara:
"Some ext3 & quota cleanups and couple of udf fixes"
* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
quota: Use the pre-processor to compile out quotactl_cmd_write when !CONFIG_BLOCK
ext3: drop if around WARN_ON
ext3: get rid of the duplicate code on ext3_fill_super
udf: remove un-needed variable from inode_getblk
udf: don't increment lenExtents while writing to a hole
udf: fix memory leak while allocating blocks during write
Linus Torvalds [Mon, 17 Dec 2012 16:27:23 +0000 (08:27 -0800)]
Merge branch 'for-3.8/core' of git://git.kernel.dk/linux-block
Pull block layer core updates from Jens Axboe:
"Here are the core block IO bits for 3.8. The branch contains:
- The final version of the surprise device removal fixups from Bart.
- Don't hide EFI partitions under advanced partition types. It's
fairly wide spread these days. This is especially dangerous for
systems that have both msdos and efi partition tables, where you
want to keep them in sync.
- Cleanup of using -1 instead of the proper NUMA_NO_NODE
- Export control of bdi flusher thread CPU mask and default to using
the home node (if known) from Jeff.
- Export unplug tracepoint for MD.
- Core improvements from Shaohua. Reinstate the recursive merge, as
the original bug has been fixed. Add plugging for discard and also
fix a problem handling non pow-of-2 discard limits.
There's a trivial merge in block/blk-exec.c due to a fix that went
into 3.7-rc at a later point than -rc4 where this is based."
* 'for-3.8/core' of git://git.kernel.dk/linux-block:
block: export block_unplug tracepoint
block: add plug for blkdev_issue_discard
block: discard granularity might not be power of 2
deadline: Allow 0ms deadline latency, increase the read speed
partitions: enable EFI/GPT support by default
bsg: Remove unused function bsg_goose_queue()
block: Make blk_cleanup_queue() wait until request_fn finished
block: Avoid scheduling delayed work on a dead queue
block: Avoid that request_fn is invoked on a dead queue
block: Let blk_drain_queue() caller obtain the queue lock
block: Rename queue dead flag
bdi: add a user-tunable cpu_list for the bdi flusher threads
block: use NUMA_NO_NODE instead of -1
block: recursive merge requests
block CFQ: avoid moving request to different queue
Linus Torvalds [Mon, 17 Dec 2012 16:26:17 +0000 (08:26 -0800)]
Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
Pull DRM updates from Dave Airlie:
"This is the one and only next pull for 3.8, we had a regression we
found last week, so I was waiting for that to resolve itself, and I
ended up with some Intel fixes on top as well.
Highlights:
- new driver: nvidia tegra 20/30/hdmi support
- radeon: add support for previously unused DMA engines, more HDMI
regs, eviction speeds ups and fixes
- i915: HSW support enable, agp removal on GEN6, seqno wrapping
- exynos: IPP subsystem support (image post proc), HDMI
- nouveau: display class reworking, nv20->40 z compression
- ttm: start of locking fixes, rcu usage for lookups,
- core: documentation updates, docbook integration, monotonic clock
usage, move from connector to object properties"
* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (590 commits)
drm/exynos: add gsc ipp driver
drm/exynos: add rotator ipp driver
drm/exynos: add fimc ipp driver
drm/exynos: add iommu support for ipp
drm/exynos: add ipp subsystem
drm/exynos: support device tree for fimd
radeon: fix regression with eviction since evict caching changes
drm/radeon: add more pedantic checks in the CP DMA checker
drm/radeon: bump version for CS ioctl support for async DMA
drm/radeon: enable the async DMA rings in the CS ioctl
drm/radeon: add VM CS parser support for async DMA on cayman/TN/SI
drm/radeon/kms: add evergreen/cayman CS parser for async DMA (v2)
drm/radeon/kms: add 6xx/7xx CS parser for async DMA (v2)
drm/radeon: fix htile buffer size computation for command stream checker
drm/radeon: fix fence locking in the pageflip callback
drm/radeon: make indirect register access concurrency-safe
drm/radeon: add W|RREG32_IDX for MM_INDEX|DATA based mmio accesss
drm/exynos: support extended screen coordinate of fimd
drm/exynos: fix x, y coordinates for right bottom pixel
drm/exynos: fix fb offset calculation for plane
...
Mel Gorman [Mon, 17 Dec 2012 14:05:53 +0000 (14:05 +0000)]
sched: numa: Fix build error if CONFIG_NUMA_BALANCING && !CONFIG_TRANSPARENT_HUGEPAGE
Michal Hocko reported that the following build error occurs if
CONFIG_NUMA_BALANCING is set without THP support
kernel/sched/fair.c: In function ‘task_numa_work’:
kernel/sched/fair.c:932:55: error: call to ‘__build_bug_failed’ declared with attribute error: BUILD_BUG failed
The problem is that HPAGE_PMD_SHIFT triggers a BUILD_BUG() on
!CONFIG_TRANSPARENT_HUGEPAGE. This patch addresses the problem.
Sascha Hauer [Tue, 11 Dec 2012 09:08:50 +0000 (10:08 +0100)]
ARM i.MX51 clock: Fix regression since enabling MIPI/HSP clocks
The MIPI/HSP clocks were recently turned on in the i.MX51 clock tree.
It turned out that the system does not work properly when the MIPI/HSP
clocks are enabled, but the IPU clock is disabled. This happens when
IPU support is disabled. In this case the IPU clock gets disabled when
the clock framework turns off unused clock in a late_initcall. This
is broken since:
| commit 9a2d4825a9368e018003a2732a61be063d178f67
| Author: Sascha Hauer <s.hauer@pengutronix.de>
| Date: Tue Jun 5 13:53:32 2012 +0200
|
| ARM i.MX5: switch IPU clk support to devicetree bindings
|
| The i.MX5 clk support has platform based clock bindings for the
| IPU. IPU support is devicetree only, so move them over to devicetree
| based bindings. Also, enable MIPI clocks which do not have a device
| associated with, but still need to be enabled to do graphics on
| i.MX51.
This patch fixes this by setting some reserved bits in the CCM as recommended
in the reference manual.
Hugh Dickins [Mon, 17 Dec 2012 02:56:58 +0000 (18:56 -0800)]
mm: fix kernel BUG at huge_memory.c:1474!
Andrea's autonuma-benchmark numa01 hits kernel BUG at huge_memory.c:1474!
in change_huge_pmd called from change_protection from change_prot_numa
from task_numa_work.
That BUG, introduced in the huge zero page commit cad7f613c4d0 ("thp:
change_huge_pmd(): make sure we don't try to make a page writable")
was trying to verify that newprot never adds write permission to an
anonymous huge page; but Automatic NUMA Balancing's 4b10e7d562c9 ("mm:
mempolicy: Implement change_prot_numa() in terms of change_protection()")
adds a new prot_numa path into change_huge_pmd(), which makes no use of
the newprot provided, and may retain the write bit in the pmd.
Just move the BUG_ON(pmd_write(entry)) up into the !prot_numa block.
We also got some notable cleanups and improvements:
- tps6586x got converted to IRQ domains.
- tps65910 and tps65090 moved to the regmap IRQ API.
- STMPE is now Device Tree aware.
- A general twl6040 and twl-core cleanup, with moves to the regmap
I/O and IRQ APIs and a conversion to the recently added PWM
framework.
- sta2x11 gained regmap support.
Then the rest is mostly tiny cleanups and fixes, among which we have
Mark's wm5xxx and wm8xxx patchset."
Far amount of annoying but largely trivial conflicts. Many due to
__devinit/exit removal, others due to one or two of the new drivers also
having come in through another tree.
* tag 'mfd-3.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/sameo/mfd-2.6: (119 commits)
mfd: tps6507x: Convert to devm_kzalloc
mfd: stmpe: Update DT support for stmpe driver
mfd: wm5102: Add readback of DSP status 3 register
mfd: arizona: Log if we fail to create the primary IRQ domain
mfd: tps80031: MFD_TPS80031 needs to select REGMAP_IRQ
mfd: tps80031: Add terminating entry for tps80031_id_table
mfd: sta2x11: Fix potential NULL pointer dereference in __sta2x11_mfd_mask()
mfd: wm5102: Add tuning for revision B
mfd: arizona: Defer patch initialistation until after first device boot
mfd: tps65910: Fix wrong ack_base register
mfd: tps65910: Remove unused data
mfd: stmpe: Get rid of irq_invert_polarity
mfd: ab8500-core: Fix invalid free of devm_ allocated data
mfd: wm5102: Mark DSP memory regions as volatile
mfd: wm5102: Correct default for LDO1_CONTROL_2
mfd: arizona: Register haptics devices
mfd: wm8994: Make current device behaviour the default
mfd: tps65090: MFD_TPS65090 needs to select REGMAP_IRQ
mfd: Fix stmpe.c build when OF is not enabled
mfd: jz4740-adc: Use devm_kzalloc
...
Linus Torvalds [Mon, 17 Dec 2012 01:42:21 +0000 (17:42 -0800)]
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu
Pull m68knommu updates from Greg Ungerer:
"This one has a major restructuring of the non-mmu 68000 support.
It merges all the related SoC types that use the original 68000 cpu
core internally so they can share the same core code. It also allows
for supporting the original stand alone 68000 cpu in its own right.
There is also a generalization of the clock support of the ColdFire
parts, some merging of common ColdFire code, and a couple of bug fixes
as well."
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/gerg/m68knommu:
m68knommu: modify clock code so it can be used by all ColdFire CPU types
m68knommu: add clock definitions for 54xx ColdFire CPU types
m68knommu: add clock definitions for 5407 ColdFire CPU types
m68knommu: add clock definitions for 5307 ColdFire CPU types
m68knommu: add clock definitions for 528x ColdFire CPU types
m68knommu: add clock definitions for 527x ColdFire CPU types
m68knommu: add clock definitions for 5272 ColdFire CPU types
m68knommu: add clock definitions for 525x ColdFire CPU types
m68knommu: add clock definitions for 5249 ColdFire CPU types
m68knommu: add clock definitions for 523x ColdFire CPU types
m68knommu: add clock definitions for 5206 ColdFire CPU types
m68knommu: add clock creation support macro for other ColdFire CPUs
m68k: fix unused variable warning in mempcy.c
m68knommu: make non-MMU page_to_virt() return a void *
m68knommu: merge ColdFire 5249 and 525x definitions
m68knommu: disable MC68000 cpu target when MMU is selected
m68knommu: allow for configuration of true 68000 based systems
m68knommu: platform code merge for 68000 core cpus
Linus Torvalds [Mon, 17 Dec 2012 01:41:26 +0000 (17:41 -0800)]
Merge branch 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging
Pull i2c update from Jean Delvare:
"This is my last pull request for the i2c subsystem. It includes all
the patches I collected between kernel v3.7-rc1 and me passing i2c
maintenance duties over to Wolfram.
Future patches to the many i2c bus drivers I still maintain will go
through Wolfram's tree."
* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
i2c: Mention functionality flags in SMBus protocol documentation
i2c-piix4: Convert dev_printk(KERN_<LEVEL> to dev_<level>(
i2c-i801: Enable interrupts for all post-ICH5 chips
i2c-i801: Add device tree support
MAINTAINERS: Fix drivers/i2c/busses/i2c-stub.c
Linus Torvalds [Mon, 17 Dec 2012 01:39:14 +0000 (17:39 -0800)]
Merge tag 'stable/for-linus-3.8-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb
Pull swiotlb update from Konrad Rzeszutek Wilk:
"Feature:
- Use dma addresses instead of the virt_to_phys and vice versa
functions.
Remove the multitude of phys_to_virt/virt_to_phys calls and instead
operate on the physical addresses instead of virtual in many of the
internal functions. This does provide a speed up in interrupt
handlers that do DMA operations and use SWIOTLB."
* tag 'stable/for-linus-3.8-rc0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/konrad/swiotlb:
swiotlb: Do not export swiotlb_bounce since there are no external consumers
swiotlb: Use physical addresses instead of virtual in swiotlb_tbl_sync_single
swiotlb: Use physical addresses for swiotlb_tbl_unmap_single
swiotlb: Return physical addresses when calling swiotlb_tbl_map_single
swiotlb: Make io_tlb_overflow_buffer a physical address
swiotlb: Make io_tlb_start a physical address instead of a virtual one
swiotlb: Make io_tlb_end a physical address instead of a virtual one
Linus Torvalds [Mon, 17 Dec 2012 01:33:01 +0000 (17:33 -0800)]
Merge tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4
Pull ext4 update from Ted Ts'o:
"There are two major features for this merge window. The first is
inline data, which allows small files or directories to be stored in
the in-inode extended attribute area. (This requires that the file
system use inodes which are at least 256 bytes or larger; 128 byte
inodes do not have any room for in-inode xattrs.)
The second new feature is SEEK_HOLE/SEEK_DATA support. This is
enabled by the extent status tree patches, and this infrastructure
will be used to further optimize ext4 in the future.
Beyond that, we have the usual collection of code cleanups and bug
fixes."
* tag 'ext4_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (63 commits)
ext4: zero out inline data using memset() instead of empty_zero_page
ext4: ensure Inode flags consistency are checked at build time
ext4: Remove CONFIG_EXT4_FS_XATTR
ext4: remove unused variable from ext4_ext_in_cache()
ext4: remove redundant initialization in ext4_fill_super()
ext4: remove redundant code in ext4_alloc_inode()
ext4: use sync_inode_metadata() when syncing inode metadata
ext4: enable ext4 inline support
ext4: let fallocate handle inline data correctly
ext4: let ext4_truncate handle inline data correctly
ext4: evict inline data out if we need to strore xattr in inode
ext4: let fiemap work with inline data
ext4: let ext4_rename handle inline dir
ext4: let empty_dir handle inline dir
ext4: let ext4_delete_entry() handle inline data
ext4: make ext4_delete_entry generic
ext4: let ext4_find_entry handle inline data
ext4: create a new function search_dir
ext4: let ext4_readdir handle inline data
ext4: let add_dir_entry handle inline data properly
...
Linus Torvalds [Sun, 16 Dec 2012 23:40:50 +0000 (15:40 -0800)]
Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security
Pull security subsystem updates from James Morris:
"A quiet cycle for the security subsystem with just a few maintenance
updates."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jmorris/linux-security:
Smack: create a sysfs mount point for smackfs
Smack: use select not depends in Kconfig
Yama: remove locking from delete path
Yama: add RCU to drop read locking
drivers/char/tpm: remove tasklet and cleanup
KEYS: Use keyring_alloc() to create special keyrings
KEYS: Reduce initial permissions on keys
KEYS: Make the session and process keyrings per-thread
seccomp: Make syscall skipping and nr changes more consistent
key: Fix resource leak
keys: Fix unreachable code
KEYS: Add payload preparsing opportunity prior to key instantiate or update
Tony Lindgren [Sun, 16 Dec 2012 20:28:46 +0000 (12:28 -0800)]
ARM: OMAP: Fix drivers to depend on omap for internal devices
These devices are not available on other architectures, so
let's limit them to omap.
If the driver subsystem maintainers want to build test
system wide changes without building for each target,
it's easy to carry a test patch that just strips out the
depends entries from Kconfig files.
Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sun, 16 Dec 2012 22:33:25 +0000 (14:33 -0800)]
Merge tag 'balancenuma-v11' of git://git.kernel.org/pub/scm/linux/kernel/git/mel/linux-balancenuma
Pull Automatic NUMA Balancing bare-bones from Mel Gorman:
"There are three implementations for NUMA balancing, this tree
(balancenuma), numacore which has been developed in tip/master and
autonuma which is in aa.git.
In almost all respects balancenuma is the dumbest of the three because
its main impact is on the VM side with no attempt to be smart about
scheduling. In the interest of getting the ball rolling, it would be
desirable to see this much merged for 3.8 with the view to building
scheduler smarts on top and adapting the VM where required for 3.9.
The most recent set of comparisons available from different people are
The results are a mixed bag. In my own tests, balancenuma does
reasonably well. It's dumb as rocks and does not regress against
mainline. On the other hand, Ingo's tests shows that balancenuma is
incapable of converging for this workloads driven by perf which is bad
but is potentially explained by the lack of scheduler smarts. Thomas'
results show balancenuma improves on mainline but falls far short of
numacore or autonuma. Srikar's results indicate we all suffer on a
large machine with imbalanced node sizes.
My own testing showed that recent numacore results have improved
dramatically, particularly in the last week but not universally.
We've butted heads heavily on system CPU usage and high levels of
migration even when it shows that overall performance is better.
There are also cases where it regresses. Of interest is that for
specjbb in some configurations it will regress for lower numbers of
warehouses and show gains for higher numbers which is not reported by
the tool by default and sometimes missed in treports. Recently I
reported for numacore that the JVM was crashing with
NullPointerExceptions but currently it's unclear what the source of
this problem is. Initially I thought it was in how numacore batch
handles PTEs but I'm no longer think this is the case. It's possible
numacore is just able to trigger it due to higher rates of migration.
These reports were quite late in the cycle so I/we would like to start
with this tree as it contains much of the code we can agree on and has
not changed significantly over the last 2-3 weeks."
* tag 'balancenuma-v11' of git://git.kernel.org/pub/scm/linux/kernel/git/mel/linux-balancenuma: (50 commits)
mm/rmap, migration: Make rmap_walk_anon() and try_to_unmap_anon() more scalable
mm/rmap: Convert the struct anon_vma::mutex to an rwsem
mm: migrate: Account a transhuge page properly when rate limiting
mm: numa: Account for failed allocations and isolations as migration failures
mm: numa: Add THP migration for the NUMA working set scanning fault case build fix
mm: numa: Add THP migration for the NUMA working set scanning fault case.
mm: sched: numa: Delay PTE scanning until a task is scheduled on a new node
mm: sched: numa: Control enabling and disabling of NUMA balancing if !SCHED_DEBUG
mm: sched: numa: Control enabling and disabling of NUMA balancing
mm: sched: Adapt the scanning rate if a NUMA hinting fault does not migrate
mm: numa: Use a two-stage filter to restrict pages being migrated for unlikely task<->node relationships
mm: numa: migrate: Set last_nid on newly allocated page
mm: numa: split_huge_page: Transfer last_nid on tail page
mm: numa: Introduce last_nid to the page frame
sched: numa: Slowly increase the scanning period as NUMA faults are handled
mm: numa: Rate limit setting of pte_numa if node is saturated
mm: numa: Rate limit the amount of memory that is migrated between nodes
mm: numa: Structures for Migrate On Fault per NUMA migration rate limiting
mm: numa: Migrate pages handled during a pmd_numa hinting fault
mm: numa: Migrate on reference policy
...
Jean Delvare [Sun, 16 Dec 2012 20:11:55 +0000 (21:11 +0100)]
i2c-i801: Enable interrupts for all post-ICH5 chips
I did not receive a single bug report after interrupt support was
added for a limited number of chips. So I'd say the code is good and
should be enabled for all supported chips, that is: ICH5 and later.
Signed-off-by: Jean Delvare <khali@linux-fr.org> Reviewed-by: Daniel Kurtz <djkurtz@chromium.org>
This file was moved to drivers/i2c/i2c-stub.c by commit 31d178b
(i2c-stub: Move to drivers/i2c).
Cc: "Mark M. Hoffman" <mhoffman@lightlink.com> Signed-off-by: Cesar Eduardo Barros <cesarb@cesarb.net> Signed-off-by: Jean Delvare <khali@linux-fr.org>
Dave Airlie [Sun, 16 Dec 2012 06:05:03 +0000 (06:05 +0000)]
Merge branch 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel into drm-next
Daniel writes:
A few leftover fixes for 3.8:
- VIC support for hdmi infoframes with the associated drm helper, fixes
some black TVs (Paulo Zanoni)
- Modeset state check (and fixup if the BIOS messed with the hw) for
lid-open. modeset-rework fallout. Somehow the original reporter went
awol, so this stalled for way too long until we've found a new
victim^Wreporter with broken BIOS.
- seqno wrap fixes from Mika and Chris.
- Some minor fixes all over from various people.
- Another race fix in the pageflip vs. unpin code from Chris.
- hsw vga resume support and a few more fdi link fixes (only used for vga
on hsw) from Paulo.
- Regression fix for DMAR from Zhenyu Wang - I've scavenged memory from my
DMAR for a while and it broke right away :(
- Regression fix from Takashi Iwai for ivb lvds - some w/a needs to be
(partially) moved back into place. Note that these are regressions in
-next.
- One more fix for ivb 3 pipe support - it now actually seems to work.
* 'drm-intel-fixes' of git://people.freedesktop.org/~danvet/drm-intel: (25 commits)
drm/i915: Fix missed needs_dmar setting
drm/i915: Fix shifted screen on top of LVDS on IVY laptop
drm/i915: disable cpt phase pointer fdi rx workaround
drm/i915: set the LPT FDI RX polarity reversal bit when needed
drm/i915: add lpt_init_pch_refclk
drm/i915: add support for mPHY destination on intel_sbi_{read, write}
drm/i915: reject modes the LPT FDI receiver can't handle
drm/i915: fix hsw_fdi_link_train "retry" code
drm/i915: Close race between processing unpin task and queueing the flip
drm/i915: fixup l3 parity sysfs access check
drm/i915: Clear the existing watermarks for g4x when modifying the cursor sr
drm/i915: do not access BLC_PWM_CTL2 on pre-gen4 hardware
drm/i915: Don't allow ring tail to reach the same cacheline as head
drm/i915: Decouple the object from the unbound list before freeing pages
drm/i915: Set sync_seqno properly after seqno wrap
drm/i915: Include the last semaphore sync point in the error-state
drm/i915: Rearrange code to only have a single method for waiting upon the ring
drm/i915: Simplify flushing activity on the ring
drm/i915: Preallocate next seqno before touching the ring
drm/i915: force restore on lid open
...
Dave Airlie [Sun, 16 Dec 2012 05:49:46 +0000 (05:49 +0000)]
Merge branch 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next
Inki writes:
"- add dmabuf attach/detach feature
. This patch would resolve performance deterioration issue
when v4l2-based driver is using the buffer imported from gem.
- drm/exynos: use DMA_ATTR_NO_KERNEL_MAPPING attribute
. With gem allocation, kernel space mapping isn't allocated and
also physical pages aren't mapped with the kernel space.
The physical pages are mapped with kernel space though vmap
function only for console framebuffer.
- add the below two patches I missed.
drm: exynos: moved exynos drm device registration to drm driver
drm: exynos: moved exynos drm hdmi device registration to drm driver
- add IPP subsystem framework and its-based device drivers.
. This patch set includes fimc, rotator and gsc drivers to perform
image scaling, rotation and color space conversion.
- add runtime pm support to hdmi driver.
- And fixups and cleanups."
* 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos: (30 commits)
drm/exynos: add gsc ipp driver
drm/exynos: add rotator ipp driver
drm/exynos: add fimc ipp driver
drm/exynos: add iommu support for ipp
drm/exynos: add ipp subsystem
drm/exynos: support device tree for fimd
drm/exynos: support extended screen coordinate of fimd
drm/exynos: fix x, y coordinates for right bottom pixel
drm/exynos: fix fb offset calculation for plane
drm/exynos: hdmi: Fix potential NULL pointer dereference error
drm/exynos: hdmi: Add CONFIG_OF and use of_match_ptr() macro
drm/exynos: add support for hdmiphy power control for exynos5
drm/exynos: add runtime pm support for mixer
drm/exynos: added runtime pm support for hdmi
drm/exynos: fix allocation and cache mapping type
drm/exynos: reorder framebuffer init sequence
drm/exynos/iommu: fix return value check in drm_create_iommu_mapping()
drm/exynos: remove unused vaddr member
drm/exynos: use DMA_ATTR_NO_KERNEL_MAPPING attribute
drm/exynos: add exception codes to exynos_drm_fbdev_create()
...
185034e72d59: "x86, efi: 1:1 pagetable mapping for virtual EFI calls")
as they all depend semantically on commit 53b87cf088e2 ("x86, mm:
Include the entire kernel memory map in trampoline_pgd") that got
reverted earlier due to the problems it caused.
This was pointed out by Yinghai Lu, and verified by me on my Macbook Air
that uses EFI.
Pointed-out-by: Yinghai Lu <yinghai@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Linus Torvalds [Sat, 15 Dec 2012 22:25:10 +0000 (14:25 -0800)]
Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending
Pull target updates from Nicholas Bellinger:
"It has been a very busy development cycle this time around in target
land, with the highlights including:
- Kill struct se_subsystem_dev, in favor of direct se_device usage
(hch)
- Simplify reservations code by combining SPC-3 + SCSI-2 support for
virtual backends only (hch)
- Simplify ALUA code for virtual only backends, and remove left over
abstractions (hch)
- Pass sense_reason_t as return value for I/O submission path (hch)
- Refactor MODE_SENSE emulation to allow for easier addition of new
mode pages. (roland)
- Add emulation of MODE_SELECT (roland)
- Fix bug in handling of ExpStatSN wrap-around (steve)
- Fix bug in TMR ABORT_TASK lookup in qla2xxx target (steve)
- Add WRITE_SAME w/ UNMAP=0 support for IBLOCK backends (nab)
- Convert ib_srpt to use modern target_submit_cmd caller + drop
legacy ioctx->kref usage (nab)
- Convert ib_srpt to use modern target_submit_tmr caller (nab)
- Add link_magic for fabric allow_link destination target_items for
symlinks within target_core_fabric_configfs.c code (nab)
- Allocate pointers in instead of full structs for
config_group->default_groups (sebastian)
- Fix 32-bit highmem breakage for FILEIO (sebastian)
All told, hch was able to shave off another ~1K LOC by killing the
se_subsystem_dev abstraction, along with a number of PR + ALUA
simplifications. Also, a nice patch by Roland is the refactoring of
MODE_SENSE handling, along with the addition of initial MODE_SELECT
emulation support for virtual backends.
Sebastian found a long-standing issue wrt to allocation of full
config_group instead of pointers for config_group->default_group[]
setup in a number of areas, which ends up saving memory with big
configurations. He also managed to fix another long-standing BUG wrt
to broken 32-bit highmem support within the FILEIO backend driver.
Thank you again to everyone who contributed this round!"
* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (50 commits)
target/iscsi_target: Add NodeACL tags for initiator group support
target/tcm_fc: fix the lockdep warning due to inconsistent lock state
sbp-target: fix error path in sbp_make_tpg()
sbp-target: use simple assignment in tgt_agent_rw_agent_state()
iscsi-target: use kstrdup() for iscsi_param
target/file: merge fd_do_readv() and fd_do_writev()
target/file: Fix 32-bit highmem breakage for SGL -> iovec mapping
target: Add link_magic for fabric allow_link destination target_items
ib_srpt: Convert TMR path to target_submit_tmr
ib_srpt: Convert I/O path to target_submit_cmd + drop legacy ioctx->kref
target: Make spc_get_write_same_sectors return sector_t
target/configfs: use kmalloc() instead of kzalloc() for default groups
target/configfs: allocate only 6 slots for dev_cg->default_groups
target/configfs: allocate pointers instead of full struct for default_groups
target: update error handling for sbc_setup_write_same()
iscsit: use GFP_ATOMIC under spin lock
iscsi_target: Remove redundant null check before kfree
target/iblock: Forward declare bio helpers
target: Clean up flow in transport_check_aborted_status()
target: Clean up logic in transport_put_cmd()
...
Dave Airlie [Sat, 15 Dec 2012 22:15:18 +0000 (22:15 +0000)]
Merge branch 'drm-next-3.8' of git://people.freedesktop.org/~agd5f/linux into drm-next
Fix regression, and some locking races, also as CS support
for the DMA engines.
* 'drm-next-3.8' of git://people.freedesktop.org/~agd5f/linux:
radeon: fix regression with eviction since evict caching changes
drm/radeon: add more pedantic checks in the CP DMA checker
drm/radeon: bump version for CS ioctl support for async DMA
drm/radeon: enable the async DMA rings in the CS ioctl
drm/radeon: add VM CS parser support for async DMA on cayman/TN/SI
drm/radeon/kms: add evergreen/cayman CS parser for async DMA (v2)
drm/radeon/kms: add 6xx/7xx CS parser for async DMA (v2)
drm/radeon: fix htile buffer size computation for command stream checker
drm/radeon: fix fence locking in the pageflip callback
drm/radeon: make indirect register access concurrency-safe
drm/radeon: add W|RREG32_IDX for MM_INDEX|DATA based mmio accesss
Linus Torvalds [Sat, 15 Dec 2012 22:04:50 +0000 (14:04 -0800)]
Merge tag 'char-misc-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull EXTCON patches from Greg Kroah-Hartman:
"Here are some drivers/extcon/ patches that I forgot to have you pull
in the larger char/misc patchset from yesterday, for the 3.8-rc1
kernel.
Nothing major here, just some driver updates, and cleanups, all of
which have been in linux-next for a while now.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>"
* tag 'char-misc-3.8-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc:
extcon: kernel_doc style fix
extcon: max77693: Fix uninitialised variable warning
extcon: max77693: Use devm_kzalloc
extcon: max8997: Use devm_kzalloc
extcon: max8997: Fix a typo
extcon: max8997: Fix checkpatch error
extcon: max77693: Fix coding style
extcon: max77693: Fix incorrect error check and return value
extcon: max8997: Fix incorrect error check and return value
extcon: Fix return value in extcon-class.c
extcon: Add missing header file to extcon.h
extcon: arizona: unlock mutex on error path in arizona_micdet()
Linus Torvalds [Sat, 15 Dec 2012 21:03:48 +0000 (13:03 -0800)]
Merge tag 'fbdev-for-3.8' of git://gitorious.org/linux-omap-dss2/linux
Pull fbdev changes from Tomi Valkeinen:
"OMAPDSS changes, including:
- use dynanic debug prints
- OMAP platform dependency removals
- Creation of compat-layer, helping us to improve omapdrm
- Misc cleanups, aiming to make omadss more in line with the upcoming
common display framework
Exynos DP changes for the 3.8 merge window:
- Device Tree support for Samsung Exynos DP
- SW Link training is cleaned up.
- HPD interrupt is supported.
Samsung Framebuffer changes for the 3.8 merge window:
- The bit definitions of header file are updated.
- Some minor typos are fixed.
- Some minor bugs of s3c_fb_check_var() are fixed.
FB related changes for SH Mobile, Freescale DIU
Add support for the Solomon SSD1307 OLED Controller"
* tag 'fbdev-for-3.8' of git://gitorious.org/linux-omap-dss2/linux: (191 commits)
OMAPDSS: fix TV-out issue with DSI PLL
Revert "OMAPFB: simplify locking"
OMAPFB: remove silly loop in fb2display()
OMAPFB: fix error handling in omapfb_find_best_mode()
OMAPFB: use devm_kzalloc to allocate omapfb2_device
OMAPDSS: DISPC: remove dispc fck uses
OMAPDSS: DISPC: get dss clock rate from dss driver
drivers/video/console/softcursor.c: remove redundant NULL check before kfree()
drivers/video: add support for the Solomon SSD1307 OLED Controller
OMAPDSS: use omapdss_compat_init() in other drivers
OMAPDSS: export dispc functions
OMAPDSS: export dss_feat functions
OMAPDSS: export dss_mgr_ops functions
OMAPDSS: separate compat files in the Makefile
OMAPDSS: move display sysfs init to compat layer
OMAPDSS: DPI: use dispc's check_timings
OMAPDSS: DISPC: add dispc_ovl_check()
OMAPDSS: move irq handling to dispc-compat
OMAPDSS: move omap_dispc_wait_for_irq_interruptible_timeout to dispc-compat.c
OMAPDSS: move blocking mgr enable/disable to compat layer
...
Pull GFS2 updates from Steven Whitehouse:
"The main feature this time is the new Orlov allocator and the patches
leading up to it which allow us to allocate new inodes from their own
allocation context, rather than borrowing that of their parent
directory. It is this change which then allows us to choose a
different location for subdirectories when required. This works
exactly as per the ext3 implementation from the users point of view.
In addition to that, we've got a speed up in gfs2_rbm_from_block()
from Bob Peterson, three locking related improvements from Dave
Teigland plus a selection of smaller bug fixes and clean ups."
* git://git.kernel.org/pub/scm/linux/kernel/git/steve/gfs2-3.0-nmw:
GFS2: Set gl_object during inode create
GFS2: add error check while allocating new inodes
GFS2: don't reference inode's glock during block allocation trace
GFS2: remove redundant lvb pointer
GFS2: only use lvb on glocks that need it
GFS2: skip dlm_unlock calls in unmount
GFS2: Fix one RG corner case
GFS2: Eliminate redundant buffer_head manipulation in gfs2_unlink_inode
GFS2: Use dirty_inode in gfs2_dir_add
GFS2: Fix truncation of journaled data files
GFS2: Add Orlov allocator
GFS2: Use proper allocation context for new inodes
GFS2: Add test for resource group congestion status
GFS2: Rename glops go_xmote_th to go_sync
GFS2: Speed up gfs2_rbm_from_block
GFS2: Review bug traps in glops.c
It causes odd bootup problems on x86-64. Markus Trippelsdorf gets a
repeatable oops, and I see a non-repeatable oops (or constant stream of
messages that scroll off too quickly to read) that seems to go away with
this commit reverted.
So we don't know exactly what is wrong with the commit, but it's
definitely problematic, and worth reverting sooner rather than later.
Bisected-by: Markus Trippelsdorf <markus@trippelsdorf.de> Cc: H Peter Anvin <hpa@zytor.com> Cc: Jan Beulich <jbeulich@suse.com> Cc: Matt Fleming <matt.fleming@intel.com> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Paul Walmsley [Sat, 15 Dec 2012 08:39:19 +0000 (01:39 -0700)]
ARM: OMAP3/4: cpuidle: fix sparse and checkpatch warnings
Fix the following sparse warnings in the OMAP3/4 CPUIdle code:
arch/arm/mach-omap2/cpuidle34xx.c:272:1: warning: symbol 'omap3_idle_dev' was not declared. Should it be static?
arch/arm/mach-omap2/cpuidle34xx.c:274:23: warning: symbol 'omap3_idle_driver' was not declared. Should it be static?
arch/arm/mach-omap2/cpuidle44xx.c:164:1: warning: symbol 'omap4_idle_dev' was not declared. Should it be static?
arch/arm/mach-omap2/cpuidle44xx.c:166:23: warning: symbol 'omap4_idle_driver' was not declared. Should it be static?
Also fix the following checkpatch warnings:
WARNING: please, no space before tabs
#44: FILE: arch/arm/mach-omap2/cpuidle34xx.c:105:
+^I.name = ^I"omap3_idle",$
WARNING: please, no space before tabs
#45: FILE: arch/arm/mach-omap2/cpuidle34xx.c:106:
+^I.owner = ^ITHIS_MODULE,$
ERROR: code indent should use tabs where possible
#211: FILE: arch/arm/mach-omap2/cpuidle44xx.c:74:
+ /* C2 - CPU0 OFF + CPU1 OFF + MPU CSWR */$
Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Kevin Hilman <khilman@ti.com> Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Paul Walmsley [Sat, 15 Dec 2012 08:35:58 +0000 (01:35 -0700)]
ARM: OMAP4: clock data: div_iva_hs_clk is a power-of-two divider
The OMAP4 clock divider "div_iva_hs_clk" is listed in the clock data
as an OMAP HSDIVIDER, but it's actually a power-of-two divider. This
causes a warning during boot on an OMAP4460 Pandaboard-ES with a
recent u-boot:
WARNING: at arch/arm/mach-omap2/clkt_clksel.c:143 omap2_clksel_recalc+0xf4/0x12c()
clock: div_iva_hs_clk: could not find fieldval 0 for parent dpll_core_m5x2_ck
Fix by converting the data for this clock to a power-of-two divider.
Signed-off-by: Paul Walmsley <paul@pwsan.com> Cc: Mike Turquette <mturquette@linaro.org>
Jon Hunter [Sat, 15 Dec 2012 08:35:54 +0000 (01:35 -0700)]
ARM: OMAP4: Fix EMU clock domain always on
Commit d043d87 (ARM: OMAP2+: clockdomain: bypass clockdomain handling
when disabling unused clks) skips the decrementing of a clock-domains
use count if the clocks use count is zero. However, for OMAP4 devices
this is causing the EMU clock-domain to be stuck ON as the use count is
not getting decremented correctly.
The scenario that leads to this problem is described below ...
Hence, due to the order that a clocks use count is decremented and the
clock domain is disabled, it is possible that the clock domain can have
a non-zero use count when the actual clock has a use count of 0.
Therefore, we should only bypass the clock-domain handling when both the
clock-domain and clock in the clock-domain have a use count of 0 and
warn when the clock-domain has a zero use count and the clock has a
non-zero use count.
Signed-off-by: Jon Hunter <jon-hunter@ti.com>
[paul@pwsan.com: fixed checkpatch warning] Signed-off-by: Paul Walmsley <paul@pwsan.com>
Jon Hunter [Sat, 15 Dec 2012 08:35:50 +0000 (01:35 -0700)]
ARM: OMAP4460: Workaround ABE DPLL failing to turn-on
With the latest mainline u-boot bootloader (v2012.10), timers (5-8) in
the ABE power domain are failing to turn-on. The timers never come out
of the disabled state when setting the module-mode field to enable.
The problem was exposed when u-boot was updated to NOT configure and
lock the ABE DPLL on start-up. If the ABE DPLL is configured and locked
by u-boot the problem does not occur. However, if the ABE DPLL is in the
idle low-power bypass state and we attempt to enable a timer in the ABE
power domain, it remains stuck in the disabled state. It appears to be a
problem the timer interface clock as this comes from the ABE DPLL.
If we place the ABE DPLL in the MN-bypass state and not the idle
low-power state, then this problem is not seen.
This problem only appears to occur on OMAP4460 and not OMAP4430.
Workaround this problem by locking the ABE DPLL for OMAP4460 in the
kernel on boot. By locking the ABE DPLL, when clocks from the ABE DPLL
are not being requested the DPLL will transition into a low-power stop
mode.
Signed-off-by: Jon Hunter <jon-hunter@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
Jon Hunter [Sat, 15 Dec 2012 08:35:46 +0000 (01:35 -0700)]
ARM: OMAP4: Enhance support for DPLLs with 4X multiplier
On OMAP4 devices, the ABE DPLL has an internal 4X multiplier that can
be enabled or disabled in addition to the standard configurable
multiplier (M) for OMAP DPLLs. When configuring the ABE DPLL the 4X
multiplier is accounted for by checking to see whether it is enabled or
not. However, when calculating a new rate we only check to see if the
rate can be achieved with the current setting for the 4X multiplier.
Enhance the round_rate() function for such DPLLs to see if the rate
can be achieved with the 4X multiplier if it cannot be achieved without
the 4X multiplier.
This change is necessary, because when using the 32kHz clock as the
source clock for the ABE DPLL, the default DPLL frequency for the ABE
DPLL cannot be achieved without enabling the 4X multiplier.
When using the 32kHz clock as the source clock for the ABE DPLL and
attempting to lock the DPLL to 98.304MHz (default frequency), it was
found that the DPLL would fail to lock if the low-power mode for the DPLL
was not enabled. From reviewing boot-loader settings that configure the
ABE DPLL it was found that the low-power mode is enabled when using the
32kHz clock source, however, the documentation for OMAP does not state
that this is a requirement. Therefore, introduce a new function for
OMAP4 devices to see if low-power mode can be enabled when calculating a
new rate to ensure the DPLL will lock.
New variables for the last calculated 4X multiplier and low-power
setting have been added to the dpll data structure as well as variables
defining the bit mask for enabling these features via the DPLL's
control_reg. It is possible that we could eliminate these bit masks from
the dpll data structure as these bit masks are not unique to OMAP4, if
it is preferred.
The function omap3_noncore_program_dpll() has been updated to avoid
passing the calculated values for the multiplier (M) and divider (N) as
these are stored in the clk structure.
Signed-off-by: Jon Hunter <jon-hunter@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
Jon Hunter [Sat, 15 Dec 2012 08:35:43 +0000 (01:35 -0700)]
ARM: OMAP4: Add function table for non-M4X dplls
Currently all OMAP4 non-core DPLLs use the same function table for
configuring DPLLs. For these DPLLs, the function
omap4_dpll_regm4xen_recalc() is used to recalculate the DPLL rate and
the function omap4_dpll_regm4xen_round_rate() is used to calculate the
closest rate to that requested. However, these omap4_dpll_regm4xen_xxx()
functions are only applicable to the ABE DPLL and not the other non-core
DPLLs. Therefore, add a new function table for non-core DPLLs that do
not include the 4X-multiplier (M4X).
Please note that using these omap4_dpll_regm4x_xxx() function works for
the non-M4X DPLLs today because we only check to see if the 4X
multiplier is enabled when calculating the rate. However, it is planned
that the dpll functions will be enhanced to enable the 4X multiplier as
necessary (in order to achieve the requested rate) and so calling these
functions for non-M4X dplls will no longer work.
Signed-off-by: Jon Hunter <jon-hunter@ti.com> Signed-off-by: Paul Walmsley <paul@pwsan.com>
Jon Hunter [Sat, 15 Dec 2012 08:35:39 +0000 (01:35 -0700)]
ARM: OMAP4: Update timer clock aliases
Commit "ARM: dts: OMAP4: Update timer addresses" updated the device-tree
names of the OMAP4 timers 5-7 because the default address for the timers
was changed from the L3 address to the MPU private address. When booting
with device-tree, this introduces a regression when attempting to set
the parent clock of timers 5-7 to the sys_clk_div_ck. Therefore, update
the clock aliases for timer 5-7 to reflect the updated device-tree name
for the timers.
Signed-off-by: Jon Hunter <jon-hunter@ti.com>
[paul@pwsan.com: updated to apply after the CCF conversion] Signed-off-by: Paul Walmsley <paul@pwsan.com>
Linus Torvalds [Fri, 14 Dec 2012 23:37:46 +0000 (15:37 -0800)]
Merge tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6
Pull another devicetree update from Grant Likely:
"Here's a couple more devicetree changes that I missed in the first
pull by putting the tag in the wrong place.
Two minor devicetree fixups for v3.8. Addition of dummy inlines and
constification of node argument to of_parse_phandle_with_args()."
* tag 'devicetree-for-linus' of git://git.secretlab.ca/git/linux-2.6:
of: *node argument to of_parse_phandle_with_args should be const
of/i2c: add dummy inline functions for when CONFIG_OF_I2C(_MODULE) isn't defined
Linus Torvalds [Fri, 14 Dec 2012 22:54:26 +0000 (14:54 -0800)]
Merge tag 'mvebu' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC updates for Marvell mvebu/kirkwood from Olof Johansson:
"This is a branch with updates for Marvell's mvebu/kirkwood platforms.
They came in late-ish, and were heavily interdependent such that it
didn't make sense to split them up across the cross-platform topic
branches. So here they are (for the second release in a row) in a
branch on their own."
* tag 'mvebu' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (88 commits)
arm: l2x0: add aurora related properties to OF binding
arm: mvebu: add Aurora L2 Cache Controller to the DT
arm: mvebu: add L2 cache support
dma: mv_xor: fix error handling path
dma: mv_xor: fix error checking of irq_of_parse_and_map()
dma: mv_xor: use request_irq() instead of devm_request_irq()
dma: mv_xor: clear the window override control registers
arm: mvebu: fix address decoding armada_cfg_base() function
ARM: mvebu: update defconfig with I2C and RTC support
ARM: mvebu: Add SATA support for OpenBlocks AX3-4
ARM: mvebu: Add support for the RTC in OpenBlocks AX3-4
ARM: mvebu: Add support for I2C on OpenBlocks AX3-4
ARM: mvebu: Add support for I2C controllers in Armada 370/XP
arm: mvebu: Add hardware I/O Coherency support
arm: plat-orion: Add coherency attribute when setup mbus target
arm: dma mapping: Export a dma ops function arm_dma_set_mask
arm: mvebu: Add SMP support for Armada XP
arm: mm: Add support for PJ4B cpu and init routines
arm: mvebu: Add IPI support via doorbells
arm: mvebu: Add initial support for power managmement service unit
...
Tony Lindgren [Fri, 14 Dec 2012 17:09:11 +0000 (09:09 -0800)]
ARM: OMAP: Move plat/omap-serial.h to include/linux/platform_data/serial-omap.h
We need to move this file to allow ARM multiplatform configurations
to build for omap2+. This can now be done as this file now only
contains platform_data.
cc: Russell King <linux@arm.linux.org.uk>
cc: Alan Cox <alan@linux.intel.com>
cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
cc: Govindraj.R <govindraj.raja@ti.com>
cc: Kevin Hilman <khilman@ti.com>
cc: linux-serial@vger.kernel.org Reviewed-by: Felipe Balbi <balbi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Jon Hunter [Fri, 14 Dec 2012 21:55:39 +0000 (15:55 -0600)]
ARM: dts: Add build target for omap4-panda-a4
Commit 0d9250c (ARM: dts: omap4-panda: Add pinmux configuration for
HDMI) added a new device-tree source file for Rev A4 of the OMAP4430
Panda board but it did not add this version to the makefile. Hence,
add this file to the makefile.
Signed-off-by: Jon Hunter <jon-hunter@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Jon Hunter [Fri, 14 Dec 2012 20:34:18 +0000 (14:34 -0600)]
ARM: dts: OMAP2420: Correct H4 board memory size
The system memory node for the OMAP2420 H4 was incorrectly defined as
start address followed by end address, instead of start address and
size. No noticable side-effects were observed but fix this for
correctness.
Signed-off-by: Jon Hunter <jon-hunter@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Linus Torvalds [Fri, 14 Dec 2012 22:42:53 +0000 (14:42 -0800)]
Merge tag 'dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM SoC device-tree updates, take 2, from Olof Johansson:
"This branch contains device-tree updates for the SPEAr platform. They
had dependencies on earlier branches from this merge window, which is
why they were broken out in a separate branch."
* tag 'dt2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: SPEAr3xx: Shirq: Move shirq controller out of plat/
ARM: SPEAr320: DT: Add SPEAr 320 HMI board support
ARM: SPEAr3xx: DT: add shirq node for interrupt multiplexor
ARM: SPEAr3xx: shirq: simplify and move the shared irq multiplexor to DT
ARM: SPEAr1310: Fix AUXDATA for compact flash controller
ARM: SPEAr13xx: Remove fields not required for ssp controller
ARM: SPEAr1310: Move 1310 specific misc register into machine specific files
ARM: SPEAr: DT: Update device nodes
ARM: SPEAr: DT: add uart state to fix warning
ARM: SPEAr: DT: Modify DT bindings for STMMAC
ARM: SPEAr: DT: Fix existing DT support
ARM: SPEAr: DT: Update partition info for MTD devices
ARM: SPEAr: DT: Update pinctrl list
ARM: SPEAr13xx: DT: Add spics gpio controller nodes
Linus Torvalds [Fri, 14 Dec 2012 22:38:28 +0000 (14:38 -0800)]
Merge tag 'soc2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc
Pull ARM Soc updates, take 2, from Olof Johansson:
"This is the second batch of SoC updates for the 3.8 merge window,
containing parts that had dependencies on earlier branches such that
we couldn't include them with the first branch.
These are general updates for Samsung Exynos, Renesas/shmobile and a
topic branch that adds SMP support to Altera's socfpga platform."
Fix up conflicts mostly as per Olof.
* tag 'soc2' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc:
ARM: EXYNOS: Clock settings for SATA and SATA PHY
ARM: EXYNOS: Add ARM down clock support
ARM: EXYNOS: Fix i2c suspend/resume for legacy controller
ARM: EXYNOS: Add aliases for i2c controller
ARM: EXYNOS: Setup legacy i2c controller interrupts
sh: clkfwk: fixup unsed variable warning
Revert "ARM: shmobile: r8a7779: Replace modify_scu_cpu_psr with scu_power_mode"
Revert "ARM: shmobile: sh73a0: Replace modify_scu_cpu_psr with scu_power_mode"
Revert "ARM: shmobile: emev2: Replace modify_scu_cpu_psr with scu_power_mode"
ARM: highbank: use common debug_ll_io_init
ARM: shmobile: sh7372: sh7372_fsiXck_clk become non-global
ARM: shmobile: sh7372: remove fsidivx clock
ARM: socfpga: mark secondary_trampoline as cpuinit
socfpga: map uart into virtual address space so that early_printk() works
ARM: socfpga: fix build break for allyesconfig
ARM: socfpga: Enable SMP for socfpga
ARM: EXYNOS: Add dp clock support for EXYNOS5
ARM: SAMSUNG: call clk_get_rate for debugfs rate files
ARM: SAMSUNG: add clock_tree debugfs file in clock
Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Michael Kerrisk <mtk.manpages@gmail.com> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
Linus Torvalds [Fri, 14 Dec 2012 22:27:45 +0000 (14:27 -0800)]
Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus
Pull MIPS updates from Ralf Baechle:
"The MIPS bits for 3.8. This also includes a bunch fixes that were
sitting in the linux-mips.org git tree for a long time. This pull
request contains updates to several OCTEON drivers and the board
support code for BCM47XX, BCM63XX, XLP, XLR, XLS, lantiq, Loongson1B,
updates to the SSB bus support, MIPS kexec code and adds support for
kdump.
When pulling this, there are two expected merge conflicts in
include/linux/bcma/bcma_driver_chipcommon.h which are trivial to
resolve, just remove the conflict markers and keep both alternatives."
* 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus: (90 commits)
MIPS: PMC-Sierra Yosemite: Remove support.
VIDEO: Newport Fix console crashes
MIPS: wrppmc: Fix build of PCI code.
MIPS: IP22/IP28: Fix build of EISA code.
MIPS: RB532: Fix build of prom code.
MIPS: PowerTV: Fix build.
MIPS: IP27: Correct fucked grammar in ops-bridge.c
MIPS: Highmem: Fix build error if CONFIG_DEBUG_HIGHMEM is disabled
MIPS: Fix potencial corruption
MIPS: Fix for warning from FPU emulation code
MIPS: Handle COP3 Unusable exception as COP1X for FP emulation
MIPS: Fix poweroff failure when HOTPLUG_CPU configured.
MIPS: MT: Fix build with CONFIG_UIDGID_STRICT_TYPE_CHECKS=y
MIPS: Remove unused smvp.h
MIPS/EDAC: Improve OCTEON EDAC support.
MIPS: OCTEON: Add definitions for OCTEON memory contoller registers.
MIPS: OCTEON: Add OCTEON family definitions to octeon-model.h
ata: pata_octeon_cf: Use correct byte order for DMA in when built little-endian.
MIPS/OCTEON/ata: Convert pata_octeon_cf.c to use device tree.
MIPS: Remove usage of CEVT_R4K_LIB config option.
...
Olof Johansson [Fri, 14 Dec 2012 21:16:07 +0000 (13:16 -0800)]
ARM: arm-soc: Merge branch 'next/smp' into next/soc2
Merging in the smp-on-socfpga branch into soc2 since the topics are similar
and it's a short branch in the first place.
* next/smp:
ARM: socfpga: mark secondary_trampoline as cpuinit
socfpga: map uart into virtual address space so that early_printk() works
ARM: socfpga: fix build break for allyesconfig
ARM: socfpga: Enable SMP for socfpga
Roger Quadros [Fri, 14 Dec 2012 17:09:11 +0000 (09:09 -0800)]
mfd: omap-usb-host: get rid of cpu_is_omap..() macros
Instead of using cpu_is_omap..() macros in the device driver we
rely on information provided in the platform data.
The only information we need is whether the USB Host module has
a single ULPI bypass control bit for all ports or individual bypass
control bits for each port. OMAP3 REV2.1 and earlier have the former.
Signed-off-by: Roger Quadros <rogerq@ti.com> Acked-by: Samuel Ortiz <sameo@linux.intel.com>
[tony@atomide.com: updated to remove plat/cpu.h] Signed-off-by: Tony Lindgren <tony@atomide.com>
Jon Hunter [Tue, 13 Nov 2012 22:02:20 +0000 (16:02 -0600)]
ARM: OMAP: Remove debug-devices.c
The OMAP2420 H4 board was the only board using the
plat-omap/debug-devices.c code for configuring ethernet support. Now
that OMAP2420 H4 has been migrated to use the generic gpmc code for
configuring ethernet support, the debug-devices.c file is no longer
used and so remove it and its header file.
Signed-off-by: Jon Hunter <jon-hunter@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Jon Hunter [Tue, 13 Nov 2012 22:02:19 +0000 (16:02 -0600)]
ARM: OMAP2420: Fix ethernet support for OMAP2420 H4
Ethernet is not currently working on the OMAP2420 H4 board. In commit f604931 (ARM: OMAP: abstract debug card setup (smc, leds)) the function
h4_init_smc91x() that initialised the ethernet controller was renamed to
h4_init_debug() but was never called when initialising the board.
Adding a call to h4_init_debug() fixes ethernet support, however,
instead of using the legacy H4 code migrate the H4 to use the
gpmc_smc91x_init() function instead and remove the legacy H4 code.
Signed-off-by: Jon Hunter <jon-hunter@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Shaohua Li [Fri, 14 Dec 2012 03:15:51 +0000 (11:15 +0800)]
block: add plug for blkdev_issue_discard
Last post of this patch appears lost, so I resend this.
Now discard merge works, add plug for blkdev_issue_discard. This will help
discard request merge especially for raid0 case. In raid0, a big discard
request is split to small requests, and if correct plug is added, such small
requests can be merged in low layer.
Signed-off-by: Shaohua Li <shli@fusionio.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Shaohua Li [Fri, 14 Dec 2012 03:15:36 +0000 (11:15 +0800)]
block: discard granularity might not be power of 2
In MD raid case, discard granularity might not be power of 2, for example, a
4-disk raid5 has 3*chunk_size discard granularity. Correct the calculation for
such cases.
Reported-by: Neil Brown <neilb@suse.de> Signed-off-by: Shaohua Li <shli@fusionio.com> Signed-off-by: Jens Axboe <axboe@kernel.dk>
Oleg Matcovschi [Tue, 27 Nov 2012 01:02:03 +0000 (17:02 -0800)]
OMAP2+: mux: Fixed gpio mux mode analysis
OMAP_MODE_GPIO() macro verified only OMAP_MUX_MODE4.
It is not correct for following platforms:
2430 - gpio mux mode 3
44xx - gpio mux mode 3
54xx - gpio mux mode 6
Patch reserves first 3 bits in partition flags for storing gpio mux
mode in same format as stored in control pad register.
Modified OMAP_MODE_GPIO() macro to handle all possible cases of gpio mux mode.
Modified omap_mux_init() flags of omap34xx to include OMAP_MUX_GPIO_IN_MODE4.
Signed-off-by: Oleg Matcovschi <oleg.matcovschi@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Tomi Valkeinen [Thu, 22 Nov 2012 08:39:56 +0000 (10:39 +0200)]
OMAP: board-files: fix i2c_bus for tfp410
The i2c handling in tfp410 driver, which handles converting parallel RGB
to DVI, was changed in 958f2717b84e88bf833d996997fda8f73276f2af
(OMAPDSS: TFP410: pdata rewrite). The patch changed what value the
driver considers as invalid/undefined. Before the patch, 0 was the
invalid value, but as 0 is a valid bus number, the patch changed this to
-1.
However, the fact was missed that many board files do not define the bus
number at all, thus it's left to 0. This causes the driver to fail to
get the i2c bus, exiting from the driver's probe with an error, meaning
that the DVI output does not work for those boards.
This patch fixes the issue by changing the i2c_bus number field in the
driver's platform data from u16 to int, and setting the bus number to -1
in the board files for the boards that did not define the bus. The
exception is devkit8000, for which the bus is set to 1, which is the
correct bus for that board.
The bug exists in v3.5+ kernels.
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com> Reported-by: Thomas Weber <thomas@tomweber.eu> Cc: Thomas Weber <thomas@tomweber.eu> Cc: <stable@vger.kernel.org> # v3.5+ Signed-off-by: Tony Lindgren <tony@atomide.com>
Casey Schaufler [Fri, 2 Nov 2012 01:14:32 +0000 (18:14 -0700)]
Smack: create a sysfs mount point for smackfs
There are a number of "conventions" for where to put LSM filesystems.
Smack adheres to none of them. Create a mount point at /sys/fs/smackfs
for mounting smackfs so that Smack can be conventional.
Targeted for git://git.gitorious.org/smack-next/kernel.git
Casey Schaufler [Fri, 2 Nov 2012 18:28:11 +0000 (11:28 -0700)]
Smack: use select not depends in Kconfig
The components NETLABEL and SECURITY_NETWORK are required by
Smack. Using "depends" in Kconfig hides the Smack option
if the user hasn't figured out that they need to be enabled
while using make menuconfig. Using select is a better choice.
Because select is not recursive depends on NET and SECURITY
are added. The reflects similar usage in TOMOYO and AppArmor.
Targeted for git://git.gitorious.org/smack-next/kernel.git
Linus Torvalds [Fri, 14 Dec 2012 18:08:40 +0000 (10:08 -0800)]
Merge branch 'core-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 EFI update from Peter Anvin:
"EFI tree, from Matt Fleming. Most of the patches are the new efivarfs
filesystem by Matt Garrett & co. The balance are support for EFI
wallclock in the absence of a hardware-specific driver, and various
fixes and cleanups."
* 'core-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits)
efivarfs: Make efivarfs_fill_super() static
x86, efi: Check table header length in efi_bgrt_init()
efivarfs: Use query_variable_info() to limit kmalloc()
efivarfs: Fix return value of efivarfs_file_write()
efivarfs: Return a consistent error when efivarfs_get_inode() fails
efivarfs: Make 'datasize' unsigned long
efivarfs: Add unique magic number
efivarfs: Replace magic number with sizeof(attributes)
efivarfs: Return an error if we fail to read a variable
efi: Clarify GUID length calculations
efivarfs: Implement exclusive access for {get,set}_variable
efivarfs: efivarfs_fill_super() ensure we clean up correctly on error
efivarfs: efivarfs_fill_super() ensure we free our temporary name
efivarfs: efivarfs_fill_super() fix inode reference counts
efivarfs: efivarfs_create() ensure we drop our reference on inode on error
efivarfs: efivarfs_file_read ensure we free data in error paths
x86-64/efi: Use EFI to deal with platform wall clock (again)
x86/kernel: remove tboot 1:1 page table creation code
x86, efi: 1:1 pagetable mapping for virtual EFI calls
x86, mm: Include the entire kernel memory map in trampoline_pgd
...
Linus Torvalds [Fri, 14 Dec 2012 18:03:23 +0000 (10:03 -0800)]
Merge branch 'x86-acpi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 ACPI update from Peter Anvin:
"This is a patchset which didn't make the last merge window. It adds a
debugging capability to feed ACPI tables via the initramfs.
On a grander scope, it formalizes using the initramfs protocol for
feeding arbitrary blobs which need to be accessed early to the kernel:
they are fed first in the initramfs blob (lots of bootloaders can
concatenate this at boot time, others can use a single file) in an
uncompressed cpio archive using filenames starting with "kernel/".
The ACPI maintainers requested that this patchset be fed via the x86
tree rather than the ACPI tree as the footprint in the general x86
code is much bigger than in the ACPI code proper."
* 'x86-acpi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
X86 ACPI: Use #ifdef not #if for CONFIG_X86 check
ACPI: Fix build when disabled
ACPI: Document ACPI table overriding via initrd
ACPI: Create acpi_table_taint() function to avoid code duplication
ACPI: Implement physical address table override
ACPI: Store valid ACPI tables passed via early initrd in reserved memblock areas
x86, acpi: Introduce x86 arch specific arch_reserve_mem_area() for e820 handling
lib: Add early cpio decoder
Linus Torvalds [Fri, 14 Dec 2012 17:59:59 +0000 (09:59 -0800)]
Merge branch 'x86-ras-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 RAS update from Ingo Molnar:
"Rework all config variables used throughout the MCA code and collect
them together into a mca_config struct. This keeps them tightly and
neatly packed together instead of spilled all over the place.
Then, convert those which are used as booleans into real booleans and
save some space. These bits are exposed via
/sys/devices/system/machinecheck/machinecheck*/"
* 'x86-ras-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86, MCA: Finish mca_config conversion
x86, MCA: Convert the next three variables batch
x86, MCA: Convert rip_msr, mce_bootlog, monarch_timeout
x86, MCA: Convert dont_log_ce, banks and tolerant
drivers/base: Add a DEVICE_BOOL_ATTR macro
Eunchul Kim [Fri, 14 Dec 2012 08:58:57 +0000 (17:58 +0900)]
drm/exynos: add gsc ipp driver
This patch adds IPP subsystem-based gsc driver for exynos5 series.
GSC is stand for General SCaler and supports the following features:
- image scaler/rotator/crop/flip/csc and input/output DMA operations.
- image rotation and image effect functions.
- writeback and display output operations.
- M2M operation to crop, scale, rotation and csc.
The below is GSC hardware path:
Memory------->GSC------>Memory
FIMD--------->GSC------>HDMI
FIMD--------->GSC------>Memory
Memory------->GSC------>FIMD, Mixer
This driver is registered to IPP subsystem framework to be used by user side
and user can control the GSC hardware through some interfaces of IPP subsystem
framework.
Eunchul Kim [Fri, 14 Dec 2012 08:58:56 +0000 (17:58 +0900)]
drm/exynos: add rotator ipp driver
This patch adds IPP subsystem-based rotator driver.
And Rotator supports the following features.
- Image crop operation support.
- Rotate operation support to 90, 180 or 270 degree.
- Flip operation support to vertical, horizontal or both.
. as limitaions, the pixel format to source buffer should be
same as the one to destination buffer and no scaler.
This driver is registered to IPP subsystem framework to be used by user side
and user can control the Rotator hardware through some interfaces of IPP
subsystem framework.
Eunchul Kim [Fri, 14 Dec 2012 08:58:55 +0000 (17:58 +0900)]
drm/exynos: add fimc ipp driver
FIMC is stand for Fully Interfactive Mobile Camera and
supports image scaler/rotator/crop/flip/csc and input/output DMA operations
and also supports writeback and display output operations.
This driver is registered to IPP subsystem framework to be used by user side
and user can control the FIMC hardware through some interfaces of IPP subsystem
framework.
Eunchul Kim [Fri, 14 Dec 2012 08:58:54 +0000 (17:58 +0900)]
drm/exynos: add iommu support for ipp
This patch adds iommu support for IPP subsystem framework.
For this, it adds subdrv_probe/remove callback to enable or
disable ipp iommu.
We can get or put device address to a gem handle from user
through exynos_drm_gem_get/put_dma_addr().
Signed-off-by: Eunchul Kim <chulspro.kim@samsung.com> Signed-off-by: Jinyoung Jeon <jy0.jeon@samsung.com> Signed-off-by: Inki Dae <inki.dae@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
Eunchul Kim [Fri, 14 Dec 2012 09:10:31 +0000 (18:10 +0900)]
drm/exynos: add ipp subsystem
This patch adds Image Post Processing(IPP) support for exynos drm driver.
IPP supports image scaler/rotator and input/output DMA operations
using IPP subsystem framework to control FIMC, Rotator and GSC hardware
and supports some user interfaces for user side.
And each IPP-based drivers support Memory to Memory operations
with various converting. And in case of FIMC hardware, it also supports
Writeback and Display output operations through local path.
Features:
- Memory to Memory operation support.
- Various pixel formats support.
- Image scaling support.
- Color Space Conversion support.
- Image crop operation support.
- Rotate operation support to 90, 180 or 270 degree.
- Flip operation support to vertical, horizontal or both.
- Writeback operation support to display blended image of FIMD fifo on screen
A summary to IPP Subsystem operations:
First of all, user should get property capabilities from IPP subsystem
and set these properties to hardware registers for desired operations.
The properties could be pixel format, position, rotation degree and
flip operation.
And next, user should set source and destination buffer data using
DRM_EXYNOS_IPP_QUEUE_BUF ioctl command with gem handles to source and
destinition buffers.
And next, user can control user-desired hardware with desired operations
such as play, stop, pause and resume controls.
And finally, user can aware of dma operation completion and also get
destination buffer that it contains user-desried result through dequeue
command.
IOCTL commands:
- DRM_EXYNOS_IPP_GET_PROPERTY
. get ipp driver capabilitis and id.
- DRM_EXYNOS_IPP_SET_PROPERTY
. set format, position, rotation, flip to source and destination buffers
- DRM_EXYNOS_IPP_QUEUE_BUF
. enqueue/dequeue buffer and make event list.
- DRM_EXYNOS_IPP_CMD_CTRL
. play/stop/pause/resume control.
Event:
- DRM_EXYNOS_IPP_EVENT
. a event to notify dma operation completion to user side.
Basic control flow:
Open -> Get properties -> User choose desired IPP sub driver(FIMC, Rotator
or GSCALER) -> Set Property -> Create gem handle -> Enqueue to source and
destination buffers -> Command control(Play) -> Event is notified to User
-> User gets destinition buffer complated -> (Enqueue to source and
destination buffers -> Event is notified to User) * N -> Queue/Dequeue to
source and destination buffers -> Command control(Stop) -> Free gem handle
-> Close
Vaibhav Hiremath [Wed, 28 Nov 2012 21:56:41 +0000 (15:56 -0600)]
ARM: OMAP2+: Fix sparse warnings in timer.c
Sparse generates the following warnings when compiling mach-omap2/timer.c.
CHECK arch/arm/mach-omap2/timer.c
arch/arm/mach-omap2/timer.c:193:13: warning: symbol 'omap_dmtimer_init'
was not declared. Should it be static?
arch/arm/mach-omap2/timer.c:213:12: warning: symbol
'omap_dm_timer_get_errata' was not declared. Should it be static?
Add static to function declaration to fix warnings.
Signed-off-by: Vaibhav Hiremath <hvaibhav@ti.com> Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Jon Hunter [Tue, 27 Nov 2012 21:24:12 +0000 (15:24 -0600)]
ARM: AM335x: Fix warning in timer.c
When compiling the kernel with configuration options ...
# CONFIG_ARCH_OMAP2 is not set
# CONFIG_ARCH_OMAP3 is not set
# CONFIG_ARCH_OMAP4 is not set
# CONFIG_SOC_OMAP5 is not set
CONFIG_SOC_AM33XX=y
... the following build warning is seen.
CC arch/arm/mach-omap2/timer.o
arch/arm/mach-omap2/timer.c:395:19: warning: ‘omap2_sync32k_clocksource_init’
defined but not used [-Wunused-function]
This issue was introduced by commit 6f80b3b (ARM: OMAP2+: timer: remove
CONFIG_OMAP_32K_TIMER) where the omap2_sync32k_clocksource_init() is no
longer referenced by the timer initialisation function for the AM335x
device as it has no 32k-sync timer.
Fix this by adding the "__maybe_unused" compiler directive to the
omap2_sync32k_clocksource_init() function to indicate that this function
may be used for certain configurations.
Cc: Igor Grinberg <grinberg@compulab.co.il> Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Jon Hunter [Tue, 27 Nov 2012 17:22:39 +0000 (11:22 -0600)]
ARM: OMAP2+: Fix realtime_counter_init warning in timer.c
In commit fa6d79d (ARM: OMAP: Add initialisation for the real-time
counter), the function realtime_counter_init() was added. However, if
the kernel configuration option CONFIG_SOC_OMAP5 is not selected then
the following compiler warning is observed.
CC arch/arm/mach-omap2/timer.o
arch/arm/mach-omap2/timer.c:489:20: warning: ‘realtime_counter_init’
defined but not used [-Wunused-function]
Commit fa6d79d also introduced the kernel configuration option
CONFIG_SOC_HAS_REALTIME_COUNTER. If this option is not selected then the
a stub function for realtime_counter_init() is defined.
For non-OMAP5 devices, there is no realtime counter and so
realtime_counter_init() function and stub function are not used for
these devices. Therefore, fix this warning by only allowing the kernel
configuration option CONFIG_SOC_HAS_REALTIME_COUNTER to be enabled for
OMAP5 devices.
Cc: Santosh Shilimkar <santosh.shilimkar@ti.com> Reported-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Jon Hunter <jon-hunter@ti.com>
Acked-by Santosh Shilimkar <santosh.shilimkar@ti.com>
Alex Deucher [Thu, 13 Dec 2012 17:27:28 +0000 (12:27 -0500)]
drm/radeon: enable the async DMA rings in the CS ioctl
This enables the functionality added in the previous
patches. Userspace acceleration drivers can use the
CS ioctl to submit command buffers to the async DMA
rings.
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Thu, 13 Dec 2012 14:55:45 +0000 (09:55 -0500)]
drm/radeon/kms: add evergreen/cayman CS parser for async DMA (v2)
Allows us to use the DMA ring from userspace.
DMA doesn't have a good NOP packet in which to embed the
reloc idx, so userspace has to add a reloc for each
buffer used and order them to match the command stream.
v2: fix address bounds checking
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Alex Deucher [Fri, 18 Nov 2011 15:19:47 +0000 (10:19 -0500)]
drm/radeon/kms: add 6xx/7xx CS parser for async DMA (v2)
Allows us to use the DMA ring from userspace.
DMA doesn't have a good NOP packet in which to embed the
reloc idx, so userspace has to add a reloc for each
buffer used and order them to match the command stream.
v2: fix address bounds checking, reloc indexing
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Daniel Vetter [Sun, 2 Dec 2012 13:06:15 +0000 (14:06 +0100)]
drm/radeon: make indirect register access concurrency-safe
With the new per-crtc locking mutliple set-cursor calls could happen
in parallel. Out of sheer paranoia I've opted for an irqsave spinlock.
But if there's indeed an access from interrupt contexts to these regs
it's already broken with the old code, so this can likely just be
reduced to a normal spinlock. Otoh the pageflip completion happens
from the vblank irq handler ...
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Daniel Vetter [Sun, 2 Dec 2012 13:02:51 +0000 (14:02 +0100)]
drm/radeon: add W|RREG32_IDX for MM_INDEX|DATA based mmio accesss
Just refactoring to make the next patche simpler. Now all indirect register
access in the new modesetting driver should go through the r100_mm_(w|r)reg
fucntions.
RADEON_READ_MM from the old driver seems to be totally unused, so just kill
it.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
It turns out it causes a very noticeable interactivity regression with
CONFIG_SCHED_AUTOGROUP (test-case: "make -j32" of the kernel in a
terminal window, while scrolling in a browser - the autogrouping means
that the two end up in separate cgroups, and the browser should be
smooth as silk despite the high load).
Says Paul Turner:
"It seems that the update-throttling on the wake-side is reducing the
interactive tasks' ability to preempt. While I suspect the right
longer term answer here is force these updates only in the
cross-cgroup case; this is less trivial. For this release I believe
the right answer is either going to be a revert or restore the updates
on the enqueue-side."
Reported-by: Linus Torvalds <torvalds@linux-foundation.org> Bisected-by: Mike Galbraith <efault@gmx.de> Acked-by: Paul Turner <pjt@google.com> Acked-by: Ingo Molnar <mingo@kernel.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
projects / karo-tx-linux.git / log