We couldn't know the original intent for this variable, but at this
point it's useless.
Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Acked-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
We don't have to use "struct i2c_adapter" pointer here.
Let's use a local "struct dw_i2c_dev" pointer, instead.
Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Acked-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
We don't have to use "struct i2c_adapter" pointer here.
Let's use a local "struct dw_i2c_dev" pointer, instead.
Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Acked-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
We're strongly discouraged from using the IC_CLR_INTR register because
it clears all software-clearable interrupts asserted at the moment.
stat = readl(IC_INTR_STAT);
:
: <=== Interrupts asserted during this period will be lost
:
readl(IC_CLR_INTR);
Instead, use the separately-prepared IC_CLR_* registers.
At the same time, this patch adds all remaining interrupt definitions
available in the DesignWare I2C hardware.
Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
This driver looks originally meant for armel machines where readw()/
writew() works perfectly fine with this hardware. But that doens't
work for big-endian systems.
This patch converts all 8/16-bit-aware usages to 32-bit variants.
Signed-off-by: Shinya Kuribayashi <shinya.kuribayashi@necel.com>
Acked-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
* git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
hwrng: core - Prevent too-small buffer sizes
hwrng: virtio-rng - Convert to new API
hwrng: core - Replace u32 in driver API with byte array
crypto: ansi_cprng - Move FIPS functions under CONFIG_CRYPTO_FIPS
crypto: testmgr - Add ghash algorithm test before provide to users
crypto: ghash-clmulni-intel - Put proper .data section in place
crypto: ghash-clmulni-intel - Use gas macro for PCLMULQDQ-NI and PSHUFB
crypto: aesni-intel - Use gas macro for AES-NI instructions
x86: Generate .byte code for some new instructions via gas macro
crypto: ghash-intel - Fix irq_fpu_usable usage
crypto: ghash-intel - Add PSHUFB macros
crypto: ghash-intel - Hard-code pshufb
crypto: ghash-intel - Fix building failure on x86_32
crypto: testmgr - Fix warning
crypto: ansi_cprng - Fix test in get_prng_bytes
crypto: hash - Remove cra_u.{digest,hash}
crypto: api - Remove digest case from procfs show handler
crypto: hash - Remove legacy hash/digest code
crypto: ansi_cprng - Add FIPS wrapper
crypto: ghash - Add PCLMULQDQ accelerated implementation
Remove the old WDT implementation.
Signed-off-by: Albrecht Dreß <albrecht.dress@arcor.de>
Acked-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Grant Likely <grant.likely@secretlab.ca>
* 'x86-setup-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
vgacon: Add support for setting the default cursor state
vc: Add support for hiding the cursor when creating VTs
x86, setup: Store the boot cursor state
* 'x86-mm-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (36 commits)
x86, mm: Correct the implementation of is_untracked_pat_range()
x86/pat: Trivial: don't create debugfs for memtype if pat is disabled
x86, mtrr: Fix sorting of mtrr after subtracting
x86: Move find_smp_config() earlier and avoid bootmem usage
x86, platform: Change is_untracked_pat_range() to bool; cleanup init
x86: Change is_ISA_range() into an inline function
x86, mm: is_untracked_pat_range() takes a normal semiclosed range
x86, mm: Call is_untracked_pat_range() rather than is_ISA_range()
x86: UV SGI: Don't track GRU space in PAT
x86: SGI UV: Fix BAU initialization
x86, numa: Use near(er) online node instead of roundrobin for NUMA
x86, numa, bootmem: Only free bootmem on NUMA failure path
x86: Change crash kernel to reserve via reserve_early()
x86: Eliminate redundant/contradicting cache line size config options
x86: When cleaning MTRRs, do not fold WP into UC
x86: remove "extern" from function prototypes in <asm/proto.h>
x86, mm: Report state of NX protections during boot
x86, mm: Clean up and simplify NX enablement
x86, pageattr: Make set_memory_(x|nx) aware of NX support
x86, sleep: Always save the value of EFER
...
Fix up conflicts (added both iommu_shutdown and is_untracked_pat_range)
to 'struct x86_platform_ops') in
arch/x86/include/asm/x86_init.h
arch/x86/kernel/x86_init.c
miropcm20 uses ALSA (snd_) interfaces from the SND_MIRO
driver, so it should depend on SND.
(selecting SND_MIRO when CONFIG_SND is not enabled is a
problem.)
drivers/built-in.o: In function `vidioc_s_ctrl':
radio-miropcm20.c:(.text+0x227499): undefined reference to `snd_aci_cmd'
drivers/built-in.o: In function `vidioc_s_frequency':
radio-miropcm20.c:(.text+0x227574): undefined reference to `snd_aci_cmd'
radio-miropcm20.c:(.text+0x227588): undefined reference to `snd_aci_cmd'
drivers/built-in.o: In function `pcm20_init':
radio-miropcm20.c:(.init.text+0x2a784): undefined reference to `snd_aci_get_aci'
miropcm20 selects SND_MIRO but SND_ISA may be not enabled, so
also select SND_ISA so that the snd-miro driver will be built.
Otherwise there are missing symbols:
ERROR: "snd_opl4_create" [sound/isa/opti9xx/snd-miro.ko] undefined!
ERROR: "snd_wss_pcm" [sound/isa/opti9xx/snd-miro.ko] undefined!
ERROR: "snd_wss_timer" [sound/isa/opti9xx/snd-miro.ko] undefined!
ERROR: "snd_wss_create" [sound/isa/opti9xx/snd-miro.ko] undefined!
ERROR: "snd_wss_mixer" [sound/isa/opti9xx/snd-miro.ko] undefined!
Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com>
Acked-by: Mauro Carvalho Chehab <mchehab@infradead.org>
Cc: Krzysztof Helt <krzysztof.h1@wp.pl>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
* 'for-2.6.33' of git://git.kernel.dk/linux-2.6-block: (113 commits)
cfq-iosched: Do not access cfqq after freeing it
block: include linux/err.h to use ERR_PTR
cfq-iosched: use call_rcu() instead of doing grace period stall on queue exit
blkio: Allow CFQ group IO scheduling even when CFQ is a module
blkio: Implement dynamic io controlling policy registration
blkio: Export some symbols from blkio as its user CFQ can be a module
block: Fix io_context leak after failure of clone with CLONE_IO
block: Fix io_context leak after clone with CLONE_IO
cfq-iosched: make nonrot check logic consistent
io controller: quick fix for blk-cgroup and modular CFQ
cfq-iosched: move IO controller declerations to a header file
cfq-iosched: fix compile problem with !CONFIG_CGROUP
blkio: Documentation
blkio: Wait on sync-noidle queue even if rq_noidle = 1
blkio: Implement group_isolation tunable
blkio: Determine async workload length based on total number of queues
blkio: Wait for cfq queue to get backlogged if group is empty
blkio: Propagate cgroup weight updation to cfq groups
blkio: Drop the reference to queue once the task changes cgroup
blkio: Provide some isolation between groups
...
* 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jgarzik/libata-dev: (54 commits)
Revert "pata_sis: Implement MWDMA for the UDMA 133 capable chips"
libata: Clarify ata_set_lba_range_entries function
libata: Report zeroed read after TRIM and max discard size
pata_hpt3x2n: fix overclocked MWDMA0 timing
pata_it8213: MWDMA0 is unsupported
[libata] MWDMA0 is unsupported on PIIX-like PATA controllers
pata_via: clear UDMA transfer mode bit for PIO and MWDMA
pata_sis: Power Management fix
pata_rz1000: Power Management fix
pata_radisys: fix UDMA handling
pata_ns87415: Power Management fix
pata_marvell: fix marvell_pre_reset() documentation
pata_legacy: add pointers to QDI65x0 documentation
pata_legacy: fix access to control register for QDI6580
pata_legacy: fix QDI6580DP support
pata_it8213: fix it8213_pre_reset() documentation
pata_it8213: fix wrong MWDMA timings being programmed
pata_it8213: fix PIO2 underclocking
pata_it8213: fix wrong PIO timings being programmed
pata_it8213: fix UDMA handling
...
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
m68k: parport_mfc3 - Not makes it a bool before the comparison.
m68k: don't export static inline functions
fbdev: atafb - add palette register check
m68k: Remove the BKL from sys_execve
m68k: Cleanup linker scripts using new linker script macros.
m68k: Make thread_info.h usable from assembly.
m68knommu: define arch_has_single_step() and friends
m68k: ptrace fixes
m68k: use generic code for ptrace requests
rtc: Add an RTC driver for the Ricoh RP5C01
rtc: Add an RTC driver for the Oki MSM6242
* 'i2c-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jdelvare/staging:
i2c-stub: Documentation update
i2c-stub: Allow user to disable some commands
i2c-stub: Implement I2C block support
i2c: Refactor for_each callbacks
i2c-i801: Retry on lost arbitration
i2c: Remove big kernel lock from i2cdev_open
ics932s401: Clean up detect function
i2c: Simplify i2c_detect_address
i2c: Drop probe, ignore and force module parameters
i2c: Add missing __devinit markers to old i2c adapter drivers
i2c: Bus drivers don't have to support I2C_M_REV_DIR_ADDR
i2c: Prevent priority inversion on top of bus lock
i2c-voodoo3: Delete
i2c-powermac: Drop temporary name buffer
i2c-powermac: Include the i2c_adapter in struct pmac_i2c_bus
i2c-powermac: Log errors
i2c-powermac: Refactor i2c_powermac_smbus_xfer
i2c-powermac: Reject unsupported I2C transactions
i2c/chips: Move ds1682 to drivers/misc
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/suspend-2.6:
PM: Add flag for devices capable of generating run-time wake-up events
PM / Runtime: Remove unnecessary braces in __pm_runtime_set_status()
PM / Runtime: Make documentation of runtime_idle() agree with the code
PM / Runtime: Ensure timer_expires is nonzero in pm_schedule_suspend()
PM / Runtime: Use deferred_resume flag in pm_request_resume
PM / Runtime: Export the PM runtime workqueue
PM / Runtime: Fix lockdep warning in __pm_runtime_set_status()
PM / Hibernate: Swap, use KERN_CONT
PM / Hibernate: Shift remaining code from swsusp.c to hibernate.c
PM / Hibernate: Move swap functions to kernel/power/swap.c.
PM / freezer: Don't get over-anxious while waiting
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next-2.6: (1815 commits)
mac80211: fix reorder buffer release
iwmc3200wifi: Enable wimax core through module parameter
iwmc3200wifi: Add wifi-wimax coexistence mode as a module parameter
iwmc3200wifi: Coex table command does not expect a response
iwmc3200wifi: Update wiwi priority table
iwlwifi: driver version track kernel version
iwlwifi: indicate uCode type when fail dump error/event log
iwl3945: remove duplicated event logging code
b43: fix two warnings
ipw2100: fix rebooting hang with driver loaded
cfg80211: indent regulatory messages with spaces
iwmc3200wifi: fix NULL pointer dereference in pmkid update
mac80211: Fix TX status reporting for injected data frames
ath9k: enable 2GHz band only if the device supports it
airo: Fix integer overflow warning
rt2x00: Fix padding bug on L2PAD devices.
WE: Fix set events not propagated
b43legacy: avoid PPC fault during resume
b43: avoid PPC fault during resume
tcp: fix a timewait refcnt race
...
Fix up conflicts due to sysctl cleanups (dead sysctl_check code and
CTL_UNNUMBERED removed) in
kernel/sysctl_check.c
net/ipv4/sysctl_net_ipv4.c
net/ipv6/addrconf.c
net/sctp/sysctl.c
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/sparc-next-2.6:
sparc: Set UTS_MACHINE correctly.
sparc,leon: init_leon srmmu cleanup
sparc32: Remove early interrupt enable.
sparc, leon: Added Aeroflex Gaisler entry in manufacturer_info structure
sparc64: Faster early-boot framebuffer console.
Revert "sparc: Make atomic locks raw"
sparc: remove unused nfsd #includes
sparc: Fixup last users of irq_chip->typename
Added sparc_leon3_snooping_enabled() and converted extern inline to static inline
No auxio on LEON
apbuart: Use of_find_node_by_path to find root node.
sparc: Replace old style lock initializer
sparc: Make atomic locks raw
apbuart: Fix build and missing driver unregister.
apbuart: Kill dependency on deprecated Sparc-only PROM interfaces.
apbuart: Fix build warning.
sparc: Support for GRLIB APBUART serial port
watchdog: Remove BKL from rio watchdog driver
sparc: Remove BKL from apc
sparc,leon: Sparc-Leon SMP support
* git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/sysctl-2.6: (43 commits)
security/tomoyo: Remove now unnecessary handling of security_sysctl.
security/tomoyo: Add a special case to handle accesses through the internal proc mount.
sysctl: Drop & in front of every proc_handler.
sysctl: Remove CTL_NONE and CTL_UNNUMBERED
sysctl: kill dead ctl_handler definitions.
sysctl: Remove the last of the generic binary sysctl support
sysctl net: Remove unused binary sysctl code
sysctl security/tomoyo: Don't look at ctl_name
sysctl arm: Remove binary sysctl support
sysctl x86: Remove dead binary sysctl support
sysctl sh: Remove dead binary sysctl support
sysctl powerpc: Remove dead binary sysctl support
sysctl ia64: Remove dead binary sysctl support
sysctl s390: Remove dead sysctl binary support
sysctl frv: Remove dead binary sysctl support
sysctl mips/lasat: Remove dead binary sysctl support
sysctl drivers: Remove dead binary sysctl support
sysctl crypto: Remove dead binary sysctl support
sysctl security/keys: Remove dead binary sysctl support
sysctl kernel: Remove binary sysctl logic
...
Rather than restoring just a few clock gating registers on resume,
just reinitialize the whole thing.
Signed-off-by: Andy Lutomirski <luto@mit.edu>
[anholt: Fixed up for RC6 support landed since the patch was written]
Signed-off-by: Eric Anholt <eric@anholt.net>
drivers/edac/amd64_edac.c: In function 'amd64_edac_init':
drivers/edac/amd64_edac.c:2840: warning: 'ret' may be used uninitialized in this function
Cc: Doug Thompson <dougthompson@xmission.com>
Cc: Mauro Carvalho Chehab <mchehab@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
The routine does the reverse mapping of the error address of a CECC back
to the node id, DRAM controller and chip select of the DIMM which caused
the error. We should lookup the channel using the syndromes _only_ when
the DCTs are ganged so fix that.
Also, add an early exit when there's an error while scanning for the
csrow thus decreasing indentation levels for better readability.
Finally, fixup comments.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
Instead of using the whole syndrome tables for channel decoding, use a
set of eigenvectors with which the tables can be generated to search for
the syndrome in error. The algorithm operates independently of symbol
size and can be used for both x4 and x8 syndromes.
Signed-off-by: Borislav Petkov <borislav.petkov@amd.com>
commit eb3fa7cb51 said Intel IOMMU
Intel IOMMU driver needs memory during DMA map calls to setup its
internal page tables and for other data structures. As we all know
that these DMA map calls are mostly called in the interrupt context
or with the spinlock held by the upper level drivers(network/storage
drivers), so in order to avoid any memory allocation failure due to
low memory issues, this patch makes memory allocation by temporarily
setting PF_MEMALLOC flags for the current task before making memory
allocation calls.
We evaluated mempools as a backup when kmem_cache_alloc() fails
and found that mempools are really not useful here because
1) We don't know for sure how much to reserve in advance
2) And mempools are not useful for GFP_ATOMIC case (as we call
memory alloc functions with GFP_ATOMIC)
(akpm: point 2 is wrong...)
The above description doesn't justify to waste system emergency memory
at all. Non MM subsystem must not use PF_MEMALLOC. Memory reclaim need
few memory, anyone must not prevent it. Otherwise the system cause
mysterious hang-up and/or OOM Killer invokation.
Plus, akpm already pointed out what we should do.
Then, this patch revert it.
Cc: Keshavamurthy Anil S <anil.s.keshavamurthy@intel.com>
Signed-off-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
We are seeing a bug when booting w/ iommu=pt with current upstream
(bisect blames 19943b0e30 "intel-iommu:
Unify hardware and software passthrough support).
The issue is specific to this loop during identity map initialization
of each device:
domain_context_mapping_one(si_domain, ..., CONTEXT_TT_PASS_THROUGH)
...
/* Skip top levels of page tables for
* iommu which has less agaw than default.
*/
for (agaw = domain->agaw; agaw != iommu->agaw; agaw--) {
pgd = phys_to_virt(dma_pte_addr(pgd));
if (!dma_pte_present(pgd)) { <------ failing here
spin_unlock_irqrestore(&iommu->lock, flags);
return -ENOMEM;
}
This box has 2 iommu's in it. The catchall iommu has MGAW == 48, and
SAGAW == 4. The other iommu has MGAW == 39, SAGAW == 2.
The device that's failing the above pgd test is the only device connected
to the non-catchall iommu, which has a smaller address width than the
domain default. This test is not necessary since the context is in PT
mode and the ASR is ignored.
Thanks to Don Dutile for discovering and debugging this one.
Cc: stable@kernel.org
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
The hotplug notifier will call find_domain() to see if the device in
question has been assigned an IOMMU domain. However, this should never
be called for devices with a "dummy" domain, such as graphics devices
when intel_iommu=igfx_off is set and the corresponding IOMMU isn't even
initialised. If you do that, it'll oops as it dereferences the (-1)
pointer.
The notifier function should check iommu_no_mapping() for the
device before doing anything else.
Cc: stable@kernel.org
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Some HP BIOSes report an RMRR region (a region which needs a 1:1 mapping
in the IOMMU for a given device) which has an end address lower than its
start address. Detect that and warn, rather than triggering the
BUG() in dma_pte_clear_range().
Cc: stable@kernel.org
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
The BIOS errors where an IOMMU is reported either at zero or a bogus
address are causing problems even when the IOMMU is disabled -- because
interrupt remapping uses the same hardware. Ensure that the checks get
applied for the interrupt remapping initialisation too.
Cc: stable@kernel.org
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Many BIOSes will lie to us about the existence of an IOMMU, and claim
that there is one at an address which actually returns all 0xFF.
We need to detect this early, so that we know we don't have a viable
IOMMU and can set up swiotlb before it's too late.
Cc: stable@kernel.org
Signed-off-by: Chris Wright <chrisw@sous-sol.org>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
This adds dma_parms to macio devices and initializes them with
default values. This will allow pata_macio to setup the appropriate
max segment size for the block layer.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This adds some basic devres support. When enabled via macio_enable_devres()
resources requested by drivers will be automatically released.
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
The virtio console, which uses hvc, will get the ability to hot-unplug
ports. Export hvc_remove so that virtio_console can disassociate with
hvc.
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Cc: linuxppc-dev@ozlabs.org
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Windfarm SMU control is explicitly missing support for a second CPU pump in G5 PowerMacs. Such machines actually exist (specifically Quads with a second pump), so this patch adds detection for it.
Signed-off by: Bolko Maass <bmaass@math.uni-bremen.de>
CC: <stable@kernel.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
This merges the radeon KMS DisplayPort and hotplug detect support.
Tested on RV635 DP card with a Dell 2408 monitor.
Conflicts:
drivers/gpu/drm/drm_fb_helper.c
This merges the upstream Intel tree and fixes up numerous conflicts
due to patches merged into Linus tree later in -rc cycle.
Conflicts:
drivers/char/agp/intel-agp.c
drivers/gpu/drm/drm_dp_i2c_helper.c
drivers/gpu/drm/i915/i915_irq.c
drivers/gpu/drm/i915/i915_suspend.c
