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Pull Ceph update from Sage Weil:
"There are a few different groups of commits here. The largest is
Alex's ongoing work to enable the coming RBD features (cloning,
striping). There is some cleanup in libceph that goes along with it.
Cyril and David have fixed some problems with NFS reexport (leaking
dentries and page locks), and there is a batch of patches from Yan
fixing problems with the fs client when running against a clustered
MDS. There are a few bug fixes mixed in for good measure, many of
which will be going to the stable trees once they're upstream.
My apologies for the late pull. There is still a gremlin in the rbd
map/unmap code and I was hoping to include the fix for that as well,
but we haven't been able to confirm the fix is correct yet; I'll send
that in a separate pull once it's nailed down."
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client: (68 commits)
rbd: get rid of rbd_{get,put}_dev()
libceph: register request before unregister linger
libceph: don't use rb_init_node() in ceph_osdc_alloc_request()
libceph: init event->node in ceph_osdc_create_event()
libceph: init osd->o_node in create_osd()
libceph: report connection fault with warning
libceph: socket can close in any connection state
rbd: don't use ENOTSUPP
rbd: remove linger unconditionally
rbd: get rid of RBD_MAX_SEG_NAME_LEN
libceph: avoid using freed osd in __kick_osd_requests()
ceph: don't reference req after put
rbd: do not allow remove of mounted-on image
libceph: Unlock unprocessed pages in start_read() error path
ceph: call handle_cap_grant() for cap import message
ceph: Fix __ceph_do_pending_vmtruncate
ceph: Don't add dirty inode to dirty list if caps is in migration
ceph: Fix infinite loop in __wake_requests
ceph: Don't update i_max_size when handling non-auth cap
bdi_register: add __printf verification, fix arg mismatch
...
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Pull IOMMU updates from Joerg Roedel:
"A few new features this merge-window. The most important one is
probably, that dma-debug now warns if a dma-handle is not checked with
dma_mapping_error by the device driver. This requires minor changes
to some architectures which make use of dma-debug. Most of these
changes have the respective Acks by the Arch-Maintainers.
Besides that there are updates to the AMD IOMMU driver for refactor
the IOMMU-Groups support and to make sure it does not trigger a
hardware erratum.
The OMAP changes (for which I pulled in a branch from Tony Lindgren's
tree) have a conflict in linux-next with the arm-soc tree. The
conflict is in the file arch/arm/mach-omap2/clock44xx_data.c which is
deleted in the arm-soc tree. It is safe to delete the file too so
solve the conflict. Similar changes are done in the arm-soc tree in
the common clock framework migration. A missing hunk from the patch
in the IOMMU tree will be submitted as a seperate patch when the
merge-window is closed."
* tag 'iommu-updates-v3.8' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (29 commits)
ARM: dma-mapping: support debug_dma_mapping_error
ARM: OMAP4: hwmod data: ipu and dsp to use parent clocks instead of leaf clocks
iommu/omap: Adapt to runtime pm
iommu/omap: Migrate to hwmod framework
iommu/omap: Keep mmu enabled when requested
iommu/omap: Remove redundant clock handling on ISR
iommu/amd: Remove obsolete comment
iommu/amd: Don't use 512GB pages
iommu/tegra: smmu: Move bus_set_iommu after probe for multi arch
iommu/tegra: gart: Move bus_set_iommu after probe for multi arch
iommu/tegra: smmu: Remove unnecessary PTC/TLB flush all
tile: dma_debug: add debug_dma_mapping_error support
sh: dma_debug: add debug_dma_mapping_error support
powerpc: dma_debug: add debug_dma_mapping_error support
mips: dma_debug: add debug_dma_mapping_error support
microblaze: dma-mapping: support debug_dma_mapping_error
ia64: dma_debug: add debug_dma_mapping_error support
c6x: dma_debug: add debug_dma_mapping_error support
ARM64: dma_debug: add debug_dma_mapping_error support
intel-iommu: Prevent devices with RMRRs from being placed into SI Domain
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The dma_pte_free_pagetable() function will only free a page table page
if it is asked to free the *entire* 2MiB range that it covers. So if a
page table page was used for one or more small mappings, it's likely to
end up still present in the page tables... but with no valid PTEs.
This was fine when we'd only be repopulating it with 4KiB PTEs anyway
but the same virtual address range can end up being reused for a
*large-page* mapping. And in that case were were trying to insert the
large page into the second-level page table, and getting a complaint
from the sanity check in __domain_mapping() because there was already a
corresponding entry. This was *relatively* harmless; it led to a memory
leak of the old page table page, but no other ill-effects.
Fix it by calling dma_pte_clear_range (hopefully redundant) and
dma_pte_free_pagetable() before setting up the new large page.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Tested-by: Ravi Murty <Ravi.Murty@intel.com>
Tested-by: Sudeep Dutt <sudeep.dutt@intel.com>
Cc: stable@kernel.org [3.0+]
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
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From Kukjin Kim:
Here is Samsung fixes-1 for v3.8-rc1.
Most of them are trivial fixes which are for NULL pointer dereference, MSHC
clocks instance names and exynos5440 stuff.
* 'v3.8-samsung-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kgene/linux-samsung:
ARM: EXYNOS: Fix MSHC clocks instance names
ARM: EXYNOS: Fix NULL pointer dereference bug in SMDKV310
ARM: EXYNOS: Fix NULL pointer dereference bug in SMDK4X12
ARM: EXYNOS: Fix NULL pointer dereference bug in Origen
ARM: SAMSUNG: Add missing include guard to gpio-core.h
pinctrl: exynos5440/samsung: Staticize pcfgs
pinctrl: samsung: Fix a typo in pinctrl-samsung.h
ARM: EXYNOS: fix skip scu_enable() for EXYNOS5440
ARM: EXYNOS: fix GIC using for EXYNOS5440
ARM: EXYNOS: fix build error when MFC is not selected
Signed-off-by: Olof Johansson <olof@lixom.net>
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The functions rbd_get_dev() and rbd_put_dev() are trivial wrappers
that add no value, and their existence suggests they may do more
than what they do.
Get rid of them.
Signed-off-by: Alex Elder <elder@inktank.com>
Reviewed-by: Dan Mick <dan.mick@inktank.com>
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Pull virtio update from Rusty Russell:
"Some nice cleanups, and even a patch my wife did as a "live" demo for
Latinoware 2012.
There's a slightly non-trivial merge in virtio-net, as we cleaned up
the virtio add_buf interface while DaveM accepted the mq virtio-net
patches."
* tag 'virtio-next-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rusty/linux: (27 commits)
virtio_console: Add support for remoteproc serial
virtio_console: Merge struct buffer_token into struct port_buffer
virtio: add drv_to_virtio to make code clearly
virtio: use dev_to_virtio wrapper in virtio
virtio-mmio: Fix irq parsing in command line parameter
virtio_console: Free buffers from out-queue upon close
virtio: Convert dev_printk(KERN_<LEVEL> to dev_<level>(
virtio_console: Use kmalloc instead of kzalloc
virtio_console: Free buffer if splice fails
virtio: tools: make it clear that virtqueue_add_buf() no longer returns > 0
virtio: scsi: make it clear that virtqueue_add_buf() no longer returns > 0
virtio: rpmsg: make it clear that virtqueue_add_buf() no longer returns > 0
virtio: net: make it clear that virtqueue_add_buf() no longer returns > 0
virtio: console: make it clear that virtqueue_add_buf() no longer returns > 0
virtio: make virtqueue_add_buf() returning 0 on success, not capacity.
virtio: console: don't rely on virtqueue_add_buf() returning capacity.
virtio_net: don't rely on virtqueue_add_buf() returning capacity.
virtio-net: remove unused skb_vnet_hdr->num_sg field
virtio-net: correct capacity math on ring full
virtio: move queue_index and num_free fields into core struct virtqueue.
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Pull UBI update from Artem Bityutskiy:
"Nothing exciting, just clean-ups and nicification. Oh, and one small
optimization which makes UBI to use less RAM."
* tag 'upstream-3.8-rc1' of git://git.infradead.org/linux-ubi:
UBI: embed ubi_debug_info field in ubi_device struct
UBI: introduce helpers dbg_chk_{io, gen}
UBI: replace memcpy with struct assignment
UBI: remove spurious comment
UBI: gluebi: rename misleading variables
UBI: do not allocate the memory unnecessarily
UBI: use list_move_tail instead of list_del/list_add_tail
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Pull ARM SoC fixes from Olof Johansson:
"This is a batch of fixes for arm-soc platforms, most of it is for OMAP
but there are others too (i.MX, Tegra, ep93xx). Fixes warnings, some
broken platforms and drivers, etc. A bit all over the map really."
There was some concern about commit 68136b10 ("RM: sunxi: Change device
tree naming scheme for sunxi"), but Tony says:
"Looks like that's trivial to fix as needed, no need to rebuild the
branch to fix that AFAIK.
The fix can be done once Olof is available online again.
Linus, I suggest that you go ahead and pull this if there are no other
issues with this branch."
* tag 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm/arm-soc: (32 commits)
ARM: sunxi: Change device tree naming scheme for sunxi
ARM: ux500: fix missing include
ARM: u300: delete custom pin hog code
ARM: davinci: fix build break due to missing include
ARM: exynos: Fix warning due to missing 'inline' in stub
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
ARM: OMAP2+: common: remove use of vram
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
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
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Pull dma-buf updates from Sumit Semwal:
"A fairly small dma-buf pull request for 3.8 - only 2 patches"
* tag 'tag-for-linus-3.8' of git://git.linaro.org/people/sumitsemwal/linux-dma-buf:
dma-buf: remove fallback for !CONFIG_DMA_SHARED_BUFFER
dma-buf: might_sleep() in dma_buf_unmap_attachment()
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Pull hwmon subsystem update from Jean Delvare:
"There are many improvements to the it87 driver, as well as suspend
support for the Winbond Super-I/O chips, and a few other fixes."
* 'hwmon-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
hwmon-vid: Add support for AMD family 11h to 15h processors
hwmon: (it87) Support PECI for additional chips
hwmon: (it87) Report thermal sensor type as Intel PECI if appropriate
hwmon: (it87) Manage device specific features with table
hwmon: (it87) Replace pwm group macro with direct attribute definitions
hwmon: (it87) Avoid quoted string splits across lines
hwmon: (it87) Save fan registers in 2-dimensional array
hwmon: (it87) Introduce support for tempX_offset sysfs attribute
hwmon: (it87) Replace macro defining tempX_type sensors with direct definitions
hwmon: (it87) Save voltage register values in 2-dimensional array
hwmon: (it87) Save temperature registers in 2-dimensional array
hwmon: (w83627ehf) Get rid of smatch warnings
hwmon: (w83627hf) Don't touch nonexistent I2C address registers
hwmon: (w83627ehf) Add support for suspend
hwmon: (w83627hf) Add support for suspend
hwmon: Fix PCI device reference leak in quirk
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Retries active opens for INUSE errors.
Logs any active ofld_connect_wr error replies.
Sends ofld_connect_wr on same ctrlq. It needs to go on the same control txq as
regular CPL active/passive messages.
Retries on active open replies with EADDRINUSE.
Uses active open fw wr only if active filter region is set.
Adds stat for ofld_connect_wr failures.
This patch also adds debugfs file to show endpoints.
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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It establishes passive open connection through firmware work request. Passive
open connection will go through this path as now instead of listening server we
create a server filter which will redirect the incoming SYN packet to the
offload queue. After this driver tries to establish the connection using
firmware work request.
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
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It enables establishing active open connection using fw_ofld_connection work
request when cpl_act_open_rpl says TCAM full error which may be because
of LE hash collision. Current support is only for IPv4 active open connections.
Sets ntuple bits in active open requests. For T4 firmware greater than 1.4.10.0
ntuple bits are required to be set.
Adds nocong and enable_ecn module parameter options.
Signed-off-by: Vipul Pandya <vipul@chelsio.com>
[ Move all FW return values to t4fw_api.h. - Roland ]
Signed-off-by: Roland Dreier <roland@purestorage.com>
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We never really clarified if unmap could be done in atomic context.
But since mapping might require sleeping, this implies mutex in use
to synchronize mapping/unmapping, so unmap could sleep as well. Add
a might_sleep() to clarify this.
Signed-off-by: Rob Clark <rob@ti.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
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Pull networking fixes from David Miller:
1) Really fix tuntap SKB use after free bug, from Eric Dumazet.
2) Adjust SKB data pointer to point past the transport header before
calling icmpv6_notify() so that the headers are in the state which
that function expects. From Duan Jiong.
3) Fix ambiguities in the new tuntap multi-queue APIs. From Jason
Wang.
4) mISDN needs to use del_timer_sync(), from Konstantin Khlebnikov.
5) Don't destroy mutex after freeing up device private in mac802154,
fix also from Konstantin Khlebnikov.
6) Fix INET request socket leak in TCP and DCCP, from Christoph Paasch.
7) SCTP HMAC kconfig rework, from Neil Horman.
8) Fix SCTP jprobes function signature, otherwise things explode, from
Daniel Borkmann.
9) Fix typo in ipv6-offload Makefile variable reference, from Simon
Arlott.
10) Don't fail USBNET open just because remote wakeup isn't supported,
from Oliver Neukum.
11) be2net driver bug fixes from Sathya Perla.
12) SOLOS PCI ATM driver bug fixes from Nathan Williams and David
Woodhouse.
13) Fix MTU changing regression in 8139cp driver, from John Greene.
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net: (45 commits)
solos-pci: ensure all TX packets are aligned to 4 bytes
solos-pci: add firmware upgrade support for new models
solos-pci: remove superfluous debug output
solos-pci: add GPIO support for newer versions on Geos board
8139cp: Prevent dev_close/cp_interrupt race on MTU change
net: qmi_wwan: add ZTE MF880
drivers/net: Use of_match_ptr() macro in smsc911x.c
drivers/net: Use of_match_ptr() macro in smc91x.c
ipv6: addrconf.c: remove unnecessary "if"
bridge: Correctly encode addresses when dumping mdb entries
bridge: Do not unregister all PF_BRIDGE rtnl operations
use generic usbnet_manage_power()
usbnet: generic manage_power()
usbnet: handle PM failure gracefully
ksz884x: fix receive polling race condition
qlcnic: update driver version
qlcnic: fix unused variable warnings
net: fec: forbid FEC_PTP on SoCs that do not support
be2net: fix wrong frag_idx reported by RX CQ
be2net: fix be_close() to ensure all events are ack'ed
...
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Pull devicetree, gpio and spi bugfixes from Grant Likely:
"Device tree v3.8 bug fix:
- Fixes an undefined struct device build error and a missing symbol
export.
GPIO device driver bug fixes:
- gpio/mvebu-gpio: Make mvebu-gpio depend on OF_CONFIG
- gpio/ich: Add missing spinlock init
SPI device driver bug fixes:
- Most of this is bug fixes to the core code and the sh-hspi and
s3c64xx device drivers.
- There is also a patch here to add DT support to the Atmel driver.
This one should have been in the first round, but I missed it.
It's a low risk change contained within a single driver and the
Atmel maintainer has requested it."
* tag 'dt-for-linus' of git://git.secretlab.ca/git/linux-2.6:
of: define struct device in of_platform.h if !OF_DEVICE and !OF_ADDRESS
of: Fix export of of_find_matching_node_and_match()
* tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux-2.6:
gpio/mvebu-gpio: Make mvebu-gpio depend on OF_CONFIG
gpio/ich: Add missing spinlock init
* tag 'spi-for-linus' of git://git.secretlab.ca/git/linux-2.6:
spi/sh-hspi: fix return value check in hspi_probe().
spi: fix tegra SPI binding examples
spi/atmel: add DT support
of/spi: Fix SPI module loading by using proper "spi:" modalias prefixes.
spi: Change FIFO flush operation and spi channel off
spi: Keep chipselect assertion during one message
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Pull drm bugfix from Dave Airlie:
"Just a single urgent regression fix, seeing a few wierd behaviours I'd
like not to persist."
* 'drm-next' of git://people.freedesktop.org/~airlied/linux:
drm/ttm: fix delayed ttm_bo_cleanup_refs_and_unlock delayed handling
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Pull random updates from Ted Ts'o:
"A few /dev/random improvements for the v3.8 merge window."
* tag 'random_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/random:
random: Mix cputime from each thread that exits to the pool
random: prime last_data value per fips requirements
random: fix debug format strings
random: make it possible to enable debugging without rebuild
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The FPGA can't handled unaligned DMA (yet). So copy into an aligned buffer,
if skb->data isn't suitably aligned.
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Nathan Williams <nathan@traverse.com.au>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Nathan Williams <nathan@traverse.com.au>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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dwmw2: Tidy up a little, simpler matching on which GPIO is being accessed,
only register on newer boards, register under PCI device instead of
duplicating them under each ATM device.
Signed-off-by: Nathan Williams <nathan@traverse.com.au>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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commit: cb64edb6b89491edfdbae52ba7db9a8b8391d339 upstream
Above commit may introduce a race between cp_interrupt and dev_close
/ change MTU / dev_open up state. Changes cp_interrupt to tolerate
this. Change spin_locking in cp_interrupt to avoid possible
but unobserved race.
Reported-by: "Francois Romieu" <romieu@fr.zoreil.com>
Tested on virtual hardware, Tx MTU size up to 4096, max tx payload
was ping -s 4068 for MTU of 4096. No real hardware, need test
assist.
Signed-off-by: "John Greene" <jogreene@redhat.com>
CC: "David S. Miller" <davem@davemloft.net>
CC: "David Woodhouse" <David.Woodhouse@intel.com>
Tested-by: David Woodhouse <David.Woodhouse@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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When building without device tree support (for the mv78x00 SoCs for
example), the build failed because of_irq_count is undeclared. However
mvebu-gpio is not designed to build without device tree support. So
make it depends on OF_CONFIG, remove the #ifdef OF_CONFIG line and the
platform_device_id.
Tested on RD-78x00-mASA, DB-78460-BP, DB-88F6710-BP-DDR3,
DB-MV784MP-GP, Mirabox and OpenBlocks AX3.
Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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As reported by CONFIG_DEBUG_SPINLOCK=y.
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Peter Tyser <ptyser@xes-inc.com>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
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Fix regression introduced by 85b144f860176
"drm/ttm: call ttm_bo_cleanup_refs with reservation and lru lock held, v3"
Slowpath ttm_bo_cleanup_refs_and_unlock accidentally tried to increase
refcount on &bo->sync_obj instead of bo->sync_obj.
The compiler didn't complain since sync_obj_ref takes a void pointer,
so it was still valid c.
This could result in lockups, memory corruptions, and warnings like
these when graphics card VRAM usage is high:
------------[ cut here ]------------
WARNING: at include/linux/kref.h:42 radeon_fence_ref+0x2c/0x40()
Hardware name: System Product Name
Pid: 157, comm: X Not tainted 3.7.0-rc7-00520-g85b144f-dirty #174
Call Trace:
[<ffffffff81058c84>] ? warn_slowpath_common+0x74/0xb0
[<ffffffff8129273c>] ? radeon_fence_ref+0x2c/0x40
[<ffffffff8125e95c>] ? ttm_bo_cleanup_refs_and_unlock+0x18c/0x2d0
[<ffffffff8125f17c>] ? ttm_mem_evict_first+0x1dc/0x2a0
[<ffffffff81264452>] ? ttm_bo_man_get_node+0x62/0xb0
[<ffffffff8125f4ce>] ? ttm_bo_mem_space+0x28e/0x340
[<ffffffff8125fb0c>] ? ttm_bo_move_buffer+0xfc/0x170
[<ffffffff810de172>] ? kmem_cache_alloc+0xb2/0xc0
[<ffffffff8125fc15>] ? ttm_bo_validate+0x95/0x110
[<ffffffff8125ff7c>] ? ttm_bo_init+0x2ec/0x3b0
[<ffffffff8129419a>] ? radeon_bo_create+0x18a/0x200
[<ffffffff81293e80>] ? radeon_bo_clear_va+0x40/0x40
[<ffffffff812a5342>] ? radeon_gem_object_create+0x92/0x160
[<ffffffff812a575c>] ? radeon_gem_create_ioctl+0x6c/0x150
[<ffffffff812a529f>] ? radeon_gem_object_free+0x2f/0x40
[<ffffffff81246b60>] ? drm_ioctl+0x420/0x4f0
[<ffffffff812a56f0>] ? radeon_gem_pwrite_ioctl+0x20/0x20
[<ffffffff810f53a4>] ? do_vfs_ioctl+0x2e4/0x4e0
[<ffffffff810e5588>] ? vfs_read+0x118/0x160
[<ffffffff810f55ec>] ? sys_ioctl+0x4c/0xa0
[<ffffffff810e5851>] ? sys_read+0x51/0xa0
[<ffffffff814b0612>] ? system_call_fastpath+0x16/0x1b
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@canonical.com>
Reported-by: Markus Trippelsdorf <markus@trippelsdorf.de>
Acked-by: Paul Menzel <paulepanter@users.sourceforge.net>
Signed-off-by: Dave Airlie <airlied@redhat.com>
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With commit c7d3df3 "mei: use internal watchdog device registration
tracking" will crash the kernel on shutdown path on systems
where ME watchdog is not present.
Since the watchdog was never initialized in such case
the WDOG_UNREGISTERED bit is never set and the system
crashes on access to uninitialized variables down the path.
To solve the issue we query for NULL on watchdog driver driver_data
to check whether the device is registered. This is handled in the
driver and doesn't depend on watchdog core internals.
Cc: Borislav Petkov <bp@alien8.de>
Cc: Wanlong Gao <gaowanlong@cn.fujitsu.com>
Signed-off-by: Jerry Snitselaar <jerry.snitselaar@oracle.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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If the DT does not include a regs parameter then the null res
would be dereferenced.
Signed-off-by: Jason Gunthorpe <jgunthorpe@obsidianresearch.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
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The current sp5100_tco driver only supports SP5100/SB7x0 chipset, doesn't
support SB8x0 chipset, because current sp5100_tco driver doesn't know that the
offset address for watchdog timer was changed from SB8x0 chipset.
The offset address of SP5100 and SB7x0 chipsets are as follows, quote from the
AMD SB700/710/750 Register Reference Guide (Page 164) and the AMD SP5100
Register Reference Guide (Page 166).
WatchDogTimerControl 69h
WatchDogTimerBase0 6Ch
WatchDogTimerBase1 6Dh
WatchDogTimerBase2 6Eh
WatchDogTimerBase3 6Fh
In contrast, the offset address of SB8x0 chipset is as follows, quote from
AMD SB800-Series Southbridges Register Reference Guide (Page 147).
WatchDogTimerEn 48h
WatchDogTimerConfig 4Ch
So, In the case of SB8x0 chipset, sp5100_tco reads meaningless MMIO
address (for example, 0xbafe00) from wrong offset address, and the following
message is logged.
SP5100 TCO timer: mmio address 0xbafe00 already in use
With this patch, sp5100_tco driver supports SB8x0 chipset, and can avoid
iomem resource conflict. The processing of this patch is as follows.
Step 1) Attempt to get the watchdog base address from indirect I/O (0xCD6
and 0xCD7).
- Go to the step 7 if obtained address hasn't conflicted with other
resource. But, currently, the address (0xfec000f0) conflicts with the
IOAPIC MMIO address, and the following message is logged.
SP5100 TCO timer: mmio address 0xfec000f0 already in use
0xfec000f0 is recommended by AMD BIOS Developer's Guide. So, go to the
next step.
Step 2) Attempt to get the SBResource_MMIO base address from AcpiMmioEN (for
SB8x0, PM_Reg:24h) or SBResource_MMIO (SP5100/SB7x0, PCI_Reg:9Ch)
register.
- Go to the step 7 if these register has enabled by BIOS, and obtained
address hasn't conflicted with other resource.
- If above condition isn't true, go to the next step.
Step 3) Attempt to get the free MMIO address from allocate_resource().
- Go to the step 7 if these register has enabled by BIOS, and obtained
address hasn't conflicted with other resource.
- Driver initialization has failed if obtained address has conflicted
with other resource, and no 'force_addr' parameter is specified.
Step 4) Use the specified address If 'force_addr' parameter is specified.
- allocate_resource() function may fail, when the PCI bridge device occupies
iomem resource from 0xf0000000 to 0xffffffff. To handle such a case,
I added 'force_addr' parameter to sp5100_tco driver. With 'force_addr'
parameter, sp5100_tco driver directly can assign MMIO address for watchdog
timer from free iomem region. Note that It's dangerous to specify wrong
address in the 'force_addr' parameter.
Example of force_addr parameter use
# cat /proc/iomem
...snip...
fec00000-fec003ff : IOAPIC 0
<--- free MMIO region
fec10000-fec1001f : pnp 00:0b
fec20000-fec203ff : IOAPIC 1
...snip...
# cat /etc/modprobe.d/sp5100_tco.conf
options sp5100_tco force_addr=0xfec00800
# modprobe sp5100_tco
# cat /proc/iomem
...snip...
fec00000-fec003ff : IOAPIC 0
fec00800-fec00807 : SP5100 TCO <--- watchdog timer MMIO address
fec10000-fec1001f : pnp 00:0b
fec20000-fec203ff : IOAPIC 1
...snip...
#
- Driver initialization has failed if specified address has conflicted
with other resource.
Step 5) Disable the watchdog timer
- To rewrite the watchdog timer register of the chipset, absolutely
guarantee that the watchdog timer is disabled.
Step 6) Re-program the watchdog timer MMIO address to chipset.
- Re-program the obtained MMIO address in Step 3 or Step 4 to chipset via
indirect I/O (0xCD6 and 0xCD7).
Step 7) Enable and setup the watchdog timer
This patch has worked fine on my test environment (ASUS M4A89GTD-PRO/USB3 and
DL165G7). therefore I believe that it's no problem to re-program the MMIO
address for watchdog timer to chipset during disabled watchdog. However,
I'm not sure about it, because I don't know much about chipset programming.
So, any comments will be welcome.
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=43176
Tested-by: Arkadiusz Miskiewicz <arekm@maven.pl>
Tested-by: Paul Menzel <paulepanter@users.sourceforge.net>
Signed-off-by: Takahisa Tanaka <mc74hc00@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
|
|
This adds OF support for davinci_wdt driver.
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Acked-by: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
|
|
It is not required to free devm_ allocated data. Since kref_put
needs a valid release function, da9052_wdt_release_resources()
is not deleted.
Fixes following warning.
drivers/watchdog/da9052_wdt.c:59:1-6: WARNING: invalid free of
devm_ allocated data
Signed-off-by: Tushar Behera <tushar.behera@linaro.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
|
|
To facilitate upcoming cleanup in twl stack.
No functional changes.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
|
|
The CONFIG_EXPERIMENTAL config item has not carried much meaning for a
while now and is almost always enabled by default. As agreed during the
Linux kernel summit, remove it from any "depends on" lines in Kconfigs.
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
|
|
dev_<level> calls take less code than dev_printk(KERN_<LEVEL>
and reducing object size is good.
Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
|
|
This is the Watchdog patch for the DA9055 PMIC. This patch has got dependency on
the DA9055 MFD core.
This patch is functionally tested on SMDK6410
Signed-off-by: David Dajun Chen <dchen@diasemi.com>
Signed-off-by: Ashish Jangam <ashish.jangam@kpitcummins.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
|
|
Eliminate a goto to simplify the code.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
|
|
It's not needed to manually reset the driver data.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
|
|
Use devm_kzalloc(), devm_request_mem_region() ande devm_ioremap()
to simplify the code.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
|
|
Convert omap_wdt to new watchdog core. On OMAP boards, there are usually
multiple watchdogs. Since the new watchdog core supports multiple
watchdogs, all watchdog drivers used on OMAP should be converted.
The legacy watchdog device node is still created, so this should not
break existing users.
Signed-off-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Tested-by: Jarkko Nikula <jarkko.nikula@jollamobile.com>
Tested-by: Lokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
|
|
Convert clk_enable/clk_disable to clk_prepare_enable/clk_disable_unprepare
calls as required by common clock framework.
Signed-off-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
|
|
With device tree support in place, we should not use IMX_HAVE_PLATFORM_IMX2_WDT
as a dependency for selecting the imx2_wdt driver.
Use ARCH_MXC symbol instead, so that the driver can be even selected by a device-tree
only SoC, such as i.MX6.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Acked-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
|
|
We do a setup_timer at init stage of the module, but we didn't
de-activate the time using del_timer.
Signed-off-by: devendra.aaru <devendra.aaru@gmail.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
|
|
Changing the version of the driver for all the latest patches being applied
for kdump fixes.
Signed-off-by: Thomas Mingarelli <thomas.mingarelli@hp.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
|
|
Convert the twl4030_wdt watchdog driver to watchdog core.
While at there use devm_kzalloc and set the default timeout in order to be
able test this driver with a simple shell script.
Signed-off-by: Jarkko Nikula <jarkko.nikula@jollamobile.com>
Tested-by: Aaro Koskinen <aaro.koskinen@iki.fi>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
|
|
As a first step towards migrating davinci platforms to use common clock
framework, replace all instances of clk_enable() with clk_prepare_enable()
and clk_disable() with clk_disable_unprepare(). Until the platform is
switched to use the CONFIG_HAVE_CLK_PREPARE Kconfig variable, this just
adds a might_sleep() call and would work without any issues.
This will make it easy later to switch to common clk based implementation
of clk driver from DaVinci specific driver.
Signed-off-by: Murali Karicheri <m-karicheri2@ti.com>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
|
|
Clk_prepare_enable and clk_disable_unprepare combine clk_prepare and
clk_enable, and clk_disable and clk_unprepare. They make the code more
concise, and ensure that clk_unprepare is called when clk_enable fails.
A simplified version of the semantic patch that introduces calls to these
functions is as follows: (http://coccinelle.lip6.fr/)
// <smpl>
@@
expression e;
@@
- clk_prepare(e);
- clk_enable(e);
+ clk_prepare_enable(e);
@@
expression e;
@@
- clk_disable(e);
- clk_unprepare(e);
+ clk_disable_unprepare(e);
// </smpl>
Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
|
|
This makes the code a bit smaller by getting rid of
some boilerplate code.
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
|
|
Since family 11h processors, AMD is exclusively using 7-bit VID codes
transmitted using a serial protocol over two pins (clock and data.)
Signed-off-by: Jean Delvare <khali@linux-fr.org>
Tested-by: David Hubbard <david.c.hubbard@gmail.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
|
|
Extend support for reporting and selecting PECI temperature sensors
to IT8718, IT8720, IT8782, and IT8783. For IT8721, report the sensor
type for temp2 as Intel PECI (6) if the chip is configured to report
the PCH temperature.
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jean Delvare <khali@linux-fr.org>
|
Linus Torvalds
Woodhouse, David
Olof Johansson
Alex Elder
Roland Dreier
Vipul Pandya
Rob Clark
Nathan Williams
John Greene
Gregory CLEMENT
Jean Delvare
Maarten Lankhorst
Tomas Winkler
Jason Gunthorpe
Takahisa Tanaka
Murali Karicheri
Tushar Behera
Peter Ujfalusi
Kees Cook
Joe Perches
Ashish Jangam
Aaro Koskinen
Thomas Abraham
Fabio Estevam
devendra.aaru
Tom Mingarelli
Jarkko Nikula
Julia Lawall
Gabor Juhos
Guenter Roeck