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Currently, bank 4 is reserved on Fam17h, so we chose not to initialize
bank 4 in the smca_banks array. This means that when we check if a bank
is initialized, like during boot or resume, we will see that bank 4 is
not initialized and try to initialize it.
This will cause a call trace, when resuming from suspend, due to
rdmsr_*on_cpu() calls in the init path. The rdmsr_*on_cpu() calls issue
an IPI but we're running with interrupts disabled. This triggers:
WARNING: CPU: 0 PID: 11523 at kernel/smp.c:291 smp_call_function_single+0xdc/0xe0
...
Reserved banks will be read-as-zero, so their MCA_IPID register will be
zero. So, like the smca_banks array, the threshold_banks array will not
have an entry for a reserved bank since all its MCA_MISC* registers will
be zero.
Enumerate a "Reserved" bank type that matches on a HWID_MCATYPE of 0,0.
Use the "Reserved" type when checking if a bank is reserved. It's
possible that other bank numbers may be reserved on future systems.
Don't try to find the block address on reserved banks.
Signed-off-by: Yazen Ghannam <yazen.ghannam@amd.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: <stable@vger.kernel.org> # 4.14.x
Cc: Borislav Petkov <bp@alien8.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Tony Luck <tony.luck@intel.com>
Cc: linux-edac <linux-edac@vger.kernel.org>
Link: http://lkml.kernel.org/r/20180221101900.10326-7-bp@alien8.de
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull irq updates from Thomas Gleixner:
"A small set of updates mostly for irq chip drivers:
- MIPS GIC fix for spurious, masked interrupts
- fix for a subtle IPI bug in GICv3
- do not probe GICv3 ITSs that are marked as disabled
- multi-MSI support for GICv2m
- various small cleanups"
* 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
irqdomain: Re-use DEFINE_SHOW_ATTRIBUTE() macro
irqchip/bcm: Remove hashed address printing
irqchip/gic-v2m: Add PCI Multi-MSI support
irqchip/gic-v3: Ignore disabled ITS nodes
irqchip/gic-v3: Use wmb() instead of smb_wmb() in gic_raise_softirq()
irqchip/gic-v3: Change pr_debug message to pr_devel
irqchip/mips-gic: Avoid spuriously handling masked interrupts
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Pull block fixes from Jens Axboe:
- NVMe pull request from Keith, with fixes all over the map for nvme.
From various folks.
- Classic polling fix, that avoids a latency issue where we still end
up waiting for an interrupt in some cases. From Nitesh Shetty.
- Comment typo fix from Minwoo Im.
* tag 'for-linus-20180217' of git://git.kernel.dk/linux-block:
block: fix a typo in comment of BLK_MQ_POLL_STATS_BKTS
nvme-rdma: fix sysfs invoked reset_ctrl error flow
nvmet: Change return code of discard command if not supported
nvme-pci: Fix timeouts in connecting state
nvme-pci: Remap CMB SQ entries on every controller reset
nvme: fix the deadlock in nvme_update_formats
blk: optimization for classic polling
nvme: Don't use a stack buffer for keep-alive command
nvme_fc: cleanup io completion
nvme_fc: correct abort race condition on resets
nvme: Fix discard buffer overrun
nvme: delete NVME_CTRL_LIVE --> NVME_CTRL_CONNECTING transition
nvme-rdma: use NVME_CTRL_CONNECTING state to mark init process
nvme: rename NVME_CTRL_RECONNECTING state to NVME_CTRL_CONNECTING
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git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Pull MMC fixes from Ulf Hansson:
- meson-gx: Revert to earlier tuning process
- bcm2835: Don't overwrite max frequency unconditionally
* tag 'mmc-v4.16-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
mmc: bcm2835: Don't overwrite max frequency unconditionally
Revert "mmc: meson-gx: include tx phase in the tuning process"
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Pull mtd fixes from Boris Brezillon:
- add missing dependency to NAND_MARVELL Kconfig entry
- use the appropriate OOB layout in the VF610 driver
* tag 'mtd/fixes-for-4.16-rc2' of git://git.infradead.org/linux-mtd:
mtd: nand: MTD_NAND_MARVELL should depend on HAS_DMA
mtd: nand: vf610: set correct ooblayout
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Passive sockets can have ongoing operations on them, specifically, we
have two wait_event_interruptable calls in pvcalls_front_accept.
Add two wake_up calls in pvcalls_front_release, then wait for the
potential waiters to return and release the sock_mapping refcount.
Signed-off-by: Stefano Stabellini <stefano@aporeto.com>
Acked-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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Introduce a per sock_mapping refcount, in addition to the existing
global refcount. Thanks to the sock_mapping refcount, we can safely wait
for it to be 1 in pvcalls_front_release before freeing an active socket,
instead of waiting for the global refcount to be 1.
Signed-off-by: Stefano Stabellini <stefano@aporeto.com>
Acked-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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Commit fd8aa9095a95 ("xen: optimize xenbus driver for multiple concurrent
xenstore accesses") optimized xenbus concurrent accesses but in doing so
broke UABI of /dev/xen/xenbus. Through /dev/xen/xenbus applications are in
charge of xenbus message exchange with the correct header and body. Now,
after the mentioned commit the replies received by application will no
longer have the header req_id echoed back as it was on request (see
specification below for reference), because that particular field is being
overwritten by kernel.
struct xsd_sockmsg
{
uint32_t type; /* XS_??? */
uint32_t req_id;/* Request identifier, echoed in daemon's response. */
uint32_t tx_id; /* Transaction id (0 if not related to a transaction). */
uint32_t len; /* Length of data following this. */
/* Generally followed by nul-terminated string(s). */
};
Before there was only one request at a time so req_id could simply be
forwarded back and forth. To allow simultaneous requests we need a
different req_id for each message thus kernel keeps a monotonic increasing
counter for this field and is written on every request irrespective of
userspace value.
Forwarding again the req_id on userspace requests is not a solution because
we would open the possibility of userspace-generated req_id colliding with
kernel ones. So this patch instead takes another route which is to
artificially keep user req_id while keeping the xenbus logic as is. We do
that by saving the original req_id before xs_send(), use the private kernel
counter as req_id and then once reply comes and was validated, we restore
back the original req_id.
Cc: <stable@vger.kernel.org> # 4.11
Fixes: fd8aa9095a ("xen: optimize xenbus driver for multiple concurrent xenstore accesses")
Reported-by: Bhavesh Davda <bhavesh.davda@oracle.com>
Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
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Pull dma-mapping fixes from Christoph Hellwig:
"A few dma-mapping fixes for the fallout from the changes in rc1"
* tag 'dma-mapping-4.16-2' of git://git.infradead.org/users/hch/dma-mapping:
powerpc/macio: set a proper dma_coherent_mask
dma-mapping: fix a comment typo
dma-direct: comment the dma_direct_free calling convention
dma-direct: mark as is_phys
ia64: fix build failure with CONFIG_SWIOTLB
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git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips
Pull MIPS fixes from James Hogan:
"A few fixes for outstanding MIPS issues:
- an __init section mismatch warning when brcmstb_pm is enabled
- a regression handling multiple mem=X@Y arguments (4.11)
- a USB Kconfig select warning, and related sparc cleanup (4.16)"
* tag 'mips_fixes_4.16_2' of git://git.kernel.org/pub/scm/linux/kernel/git/jhogan/mips:
sparc,leon: Select USB_UHCI_BIG_ENDIAN_{MMIO,DESC}
usb: Move USB_UHCI_BIG_ENDIAN_* out of USB_SUPPORT
MIPS: Fix incorrect mem=X@Y handling
MIPS: BMIPS: Fix section mismatch warning
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git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper fix from Mike Snitzer:
"Fix for DM core to properly propagate errors (avoids overriding
non-zero error with 0). This is particularly important given DM core's
increased use of chained bios"
* tag 'for-4.16/dm-chained-bios-fix' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm: correctly handle chained bios in dec_pending()
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git://git.infradead.org/linux-platform-drivers-x86
Pull x86 platform driver fixes from Andy Shevchenko:
- regression fix in keyboard support for Dell laptops
- prevent out-of-boundary write in WMI bus driver
- increase timeout to read functional key status on Lenovo laptops
* tag 'platform-drivers-x86-v4.16-4' of git://git.infradead.org/linux-platform-drivers-x86:
platform/x86: dell-laptop: Removed duplicates in DMI whitelist
platform/x86: dell-laptop: fix kbd_get_state's request value
platform/x86: ideapad-laptop: Increase timeout to wait for EC answer
platform/x86: wmi: fix off-by-one write in wmi_dev_probe()
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git://people.freedesktop.org/~airlied/linux
Pull drm fixes from Dave Airlie:
"One nouveau regression fix, one AMD quirk and a full set of i915
fixes.
The i915 fixes are mostly for things caught by their CI system, main
ones being DSI panel fixes and GEM fixes"
* tag 'drm-fixes-for-v4.16-rc2' of git://people.freedesktop.org/~airlied/linux:
drm/nouveau: Make clock gate support conditional
drm/i915: Fix DSI panels with v1 MIPI sequences without a DEASSERT sequence v3
drm/i915: Free memdup-ed DSI VBT data structures on driver_unload
drm/i915: Add intel_bios_cleanup() function
drm/i915/vlv: Add cdclk workaround for DSI
drm/i915/gvt: fix one typo of render_mmio trace
drm/i915/gvt: Support BAR0 8-byte reads/writes
drm/i915/gvt: add 0xe4f0 into gen9 render list
drm/i915/pmu: Fix building without CONFIG_PM
drm/i915/pmu: Fix sleep under atomic in RC6 readout
drm/i915/pmu: Fix PMU enable vs execlists tasklet race
drm/i915: Lock out execlist tasklet while peeking inside for busy-stats
drm/i915/breadcrumbs: Ignore unsubmitted signalers
drm/i915: Don't wake the device up to check if the engine is asleep
drm/i915: Avoid truncation before clamping userspace's priority value
drm/i915/perf: Fix compiler warning for string truncation
drm/i915/perf: Fix compiler warning for string truncation
drm/amdgpu: add new device to use atpx quirk
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dec_pending() is given an error status (possibly 0) to be recorded
against a bio. It can be called several times on the one 'struct
dm_io', and it is careful to only assign a non-zero error to
io->status. However when it then assigned io->status to bio->bi_status,
it is not careful and could overwrite a genuine error status with 0.
This can happen when chained bios are in use. If a bio is chained
beneath the bio that this dm_io is handling, the child bio might
complete and set bio->bi_status before the dm_io completes.
This has been possible since chained bios were introduced in 3.14, and
has become a lot easier to trigger with commit 18a25da84354 ("dm: ensure
bio submission follows a depth-first tree walk") as that commit caused
dm to start using chained bios itself.
A particular failure mode is that if a bio spans an 'error' target and a
working target, the 'error' fragment will complete instantly and set the
->bi_status, and the other fragment will normally complete a little
later, and will clear ->bi_status.
The fix is simply to only assign io_error to bio->bi_status when
io_error is not zero.
Reported-and-tested-by: Milan Broz <gmazyland@gmail.com>
Cc: stable@vger.kernel.org (v3.14+)
Signed-off-by: NeilBrown <neilb@suse.com>
Signed-off-by: Mike Snitzer <snitzer@redhat.com>
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Since commit ad67b74d2469 ("printk: hash addresses printed with %p")
pointers are being hashed when printed. Displaying the virtual memory at
bootup time is not helpful. so delete the prints.
Acked-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Jaedon Shin <jaedon.shin@gmail.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
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We'd never implemented Multi-MSI support with GICv2m, because
it is weird and clunky, and you'd think people would rather use
MSI-X.
Turns out there is still plenty of devices out there that rely
on Multi-MSI. Oh well, let's teach that trick to the v2m widget,
it is not a big deal anyway.
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
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On some platforms there's an ITS available but it's not enabled
because reading or writing the registers is denied by the
firmware. In fact, reading or writing them will cause the system
to reset. We could remove the node from DT in such a case, but
it's better to skip nodes that are marked as "disabled" in DT so
that we can describe the hardware that exists and use the status
property to indicate how the firmware has configured things.
Cc: Stuart Yoder <stuyoder@gmail.com>
Cc: Laurentiu Tudor <laurentiu.tudor@nxp.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Rajendra Nayak <rnayak@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
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A DMB instruction can be used to ensure the relative order of only
memory accesses before and after the barrier. Since writes to system
registers are not memory operations, barrier DMB is not sufficient
for observability of memory accesses that occur before ICC_SGI1R_EL1
writes.
A DSB instruction ensures that no instructions that appear in program
order after the DSB instruction, can execute until the DSB instruction
has completed.
Cc: stable@vger.kernel.org
Acked-by: Will Deacon <will.deacon@arm.com>,
Signed-off-by: Shanker Donthineni <shankerd@codeaurora.org>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
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The pr_debug() in gic-v3 gic_send_sgi() can trigger a circular locking
warning:
GICv3: CPU10: ICC_SGI1R_EL1 5000400
======================================================
WARNING: possible circular locking dependency detected
4.15.0+ #1 Tainted: G W
------------------------------------------------------
dynamic_debug01/1873 is trying to acquire lock:
((console_sem).lock){-...}, at: [<0000000099c891ec>] down_trylock+0x20/0x4c
but task is already holding lock:
(&rq->lock){-.-.}, at: [<00000000842e1587>] __task_rq_lock+0x54/0xdc
which lock already depends on the new lock.
the existing dependency chain (in reverse order) is:
-> #2 (&rq->lock){-.-.}:
__lock_acquire+0x3b4/0x6e0
lock_acquire+0xf4/0x2a8
_raw_spin_lock+0x4c/0x60
task_fork_fair+0x3c/0x148
sched_fork+0x10c/0x214
copy_process.isra.32.part.33+0x4e8/0x14f0
_do_fork+0xe8/0x78c
kernel_thread+0x48/0x54
rest_init+0x34/0x2a4
start_kernel+0x45c/0x488
-> #1 (&p->pi_lock){-.-.}:
__lock_acquire+0x3b4/0x6e0
lock_acquire+0xf4/0x2a8
_raw_spin_lock_irqsave+0x58/0x70
try_to_wake_up+0x48/0x600
wake_up_process+0x28/0x34
__up.isra.0+0x60/0x6c
up+0x60/0x68
__up_console_sem+0x4c/0x7c
console_unlock+0x328/0x634
vprintk_emit+0x25c/0x390
dev_vprintk_emit+0xc4/0x1fc
dev_printk_emit+0x88/0xa8
__dev_printk+0x58/0x9c
_dev_info+0x84/0xa8
usb_new_device+0x100/0x474
hub_port_connect+0x280/0x92c
hub_event+0x740/0xa84
process_one_work+0x240/0x70c
worker_thread+0x60/0x400
kthread+0x110/0x13c
ret_from_fork+0x10/0x18
-> #0 ((console_sem).lock){-...}:
validate_chain.isra.34+0x6e4/0xa20
__lock_acquire+0x3b4/0x6e0
lock_acquire+0xf4/0x2a8
_raw_spin_lock_irqsave+0x58/0x70
down_trylock+0x20/0x4c
__down_trylock_console_sem+0x3c/0x9c
console_trylock+0x20/0xb0
vprintk_emit+0x254/0x390
vprintk_default+0x58/0x90
vprintk_func+0xbc/0x164
printk+0x80/0xa0
__dynamic_pr_debug+0x84/0xac
gic_raise_softirq+0x184/0x18c
smp_cross_call+0xac/0x218
smp_send_reschedule+0x3c/0x48
resched_curr+0x60/0x9c
check_preempt_curr+0x70/0xdc
wake_up_new_task+0x310/0x470
_do_fork+0x188/0x78c
SyS_clone+0x44/0x50
__sys_trace_return+0x0/0x4
other info that might help us debug this:
Chain exists of:
(console_sem).lock --> &p->pi_lock --> &rq->lock
Possible unsafe locking scenario:
CPU0 CPU1
---- ----
lock(&rq->lock);
lock(&p->pi_lock);
lock(&rq->lock);
lock((console_sem).lock);
*** DEADLOCK ***
2 locks held by dynamic_debug01/1873:
#0: (&p->pi_lock){-.-.}, at: [<000000001366df53>] wake_up_new_task+0x40/0x470
#1: (&rq->lock){-.-.}, at: [<00000000842e1587>] __task_rq_lock+0x54/0xdc
stack backtrace:
CPU: 10 PID: 1873 Comm: dynamic_debug01 Tainted: G W 4.15.0+ #1
Hardware name: GIGABYTE R120-T34-00/MT30-GS2-00, BIOS T48 10/02/2017
Call trace:
dump_backtrace+0x0/0x188
show_stack+0x24/0x2c
dump_stack+0xa4/0xe0
print_circular_bug.isra.31+0x29c/0x2b8
check_prev_add.constprop.39+0x6c8/0x6dc
validate_chain.isra.34+0x6e4/0xa20
__lock_acquire+0x3b4/0x6e0
lock_acquire+0xf4/0x2a8
_raw_spin_lock_irqsave+0x58/0x70
down_trylock+0x20/0x4c
__down_trylock_console_sem+0x3c/0x9c
console_trylock+0x20/0xb0
vprintk_emit+0x254/0x390
vprintk_default+0x58/0x90
vprintk_func+0xbc/0x164
printk+0x80/0xa0
__dynamic_pr_debug+0x84/0xac
gic_raise_softirq+0x184/0x18c
smp_cross_call+0xac/0x218
smp_send_reschedule+0x3c/0x48
resched_curr+0x60/0x9c
check_preempt_curr+0x70/0xdc
wake_up_new_task+0x310/0x470
_do_fork+0x188/0x78c
SyS_clone+0x44/0x50
__sys_trace_return+0x0/0x4
GICv3: CPU0: ICC_SGI1R_EL1 12000
This could be fixed with printk_deferred() but that might lessen its
usefulness for debugging. So change it to pr_devel to keep it out of
production kernels. Developers working on gic-v3 can enable it as
needed in their kernels.
Signed-off-by: Mark Salter <msalter@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
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Commit 7778c4b27cbe ("irqchip: mips-gic: Use pcpu_masks to avoid reading
GIC_SH_MASK*") removed the read of the hardware mask register when
handling shared interrupts, instead using the driver's shadow pcpu_masks
entry as the effective mask. Unfortunately this did not take account of
the write to pcpu_masks during gic_shared_irq_domain_map, which
effectively unmasks the interrupt early. If an interrupt is asserted,
gic_handle_shared_int decodes and processes the interrupt even though it
has not yet been unmasked via gic_unmask_irq, which also sets the
appropriate bit in pcpu_masks.
On the MIPS Boston board, when a console command line of
"console=ttyS0,115200n8r" is passed, the modem status IRQ is enabled in
the UART, which is immediately raised to the GIC. The interrupt has been
mapped, but no handler has yet been registered, nor is it expected to be
unmasked. However, the write to pcpu_masks in gic_shared_irq_domain_map
has effectively unmasked it, resulting in endless reports of:
[ 5.058454] irq 13, desc: ffffffff80a7ad80, depth: 1, count: 0, unhandled: 0
[ 5.062057] ->handle_irq(): ffffffff801b1838,
[ 5.062175] handle_bad_irq+0x0/0x2c0
Where IRQ 13 is the UART interrupt.
To fix this, just remove the write to pcpu_masks in
gic_shared_irq_domain_map. The existing write in gic_unmask_irq is the
correct place for what is now the effective unmasking.
Cc: stable@vger.kernel.org
Fixes: 7778c4b27cbe ("irqchip: mips-gic: Use pcpu_masks to avoid reading GIC_SH_MASK*")
Signed-off-by: Matt Redfearn <matt.redfearn@mips.com>
Reviewed-by: Paul Burton <paul.burton@mips.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
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single fix for older gpus.
* 'linux-4.16' of git://github.com/skeggsb/linux:
drm/nouveau: Make clock gate support conditional
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The recently introduced clock gate support breaks on Tegra chips because
no thermal support is enabled for those devices. Conditionalize the code
on the existence of thermal support to fix this.
Fixes: b138eca661cc ("drm/nouveau: Add support for basic clockgating on Kepler1")
Cc: Martin Peres <martin.peres@free.fr>
Cc: Lyude Paul <lyude@redhat.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
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git://anongit.freedesktop.org/drm/drm-intel into drm-fixes
There are important fixes for VLV with MIPI/DSI panels,
2 clean-up patches needed for this MIPI/DSI fix,
and many fixes for GEM including fixes for Perf OA and PMU,
and fixes on scheduler and preemption.
This also includes GVT fixes: "This has one to fix GTT mmio 8b
access from guest and two simple ones for mmio switch and typo fix"
* tag 'drm-intel-fixes-2018-02-14-1' of git://anongit.freedesktop.org/drm/drm-intel:
drm/i915: Fix DSI panels with v1 MIPI sequences without a DEASSERT sequence v3
drm/i915: Free memdup-ed DSI VBT data structures on driver_unload
drm/i915: Add intel_bios_cleanup() function
drm/i915/vlv: Add cdclk workaround for DSI
drm/i915/gvt: fix one typo of render_mmio trace
drm/i915/gvt: Support BAR0 8-byte reads/writes
drm/i915/gvt: add 0xe4f0 into gen9 render list
drm/i915/pmu: Fix building without CONFIG_PM
drm/i915/pmu: Fix sleep under atomic in RC6 readout
drm/i915/pmu: Fix PMU enable vs execlists tasklet race
drm/i915: Lock out execlist tasklet while peeking inside for busy-stats
drm/i915/breadcrumbs: Ignore unsubmitted signalers
drm/i915: Don't wake the device up to check if the engine is asleep
drm/i915: Avoid truncation before clamping userspace's priority value
drm/i915/perf: Fix compiler warning for string truncation
drm/i915/perf: Fix compiler warning for string truncation
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into drm-fixes
single atpx fix
* 'drm-next-4.16' of git://people.freedesktop.org/~agd5f/linux:
drm/amdgpu: add new device to use atpx quirk
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull ACPI fixes from Rafael Wysocki:
"These fix a system resume regression from the 4.13 cycle, clean up
device table handling in the ACPI core, update sysfs ABI documentation
of a couple of drivers and add an expected switch fall-through marker
to the SPCR table parsing code.
Specifics:
- Revert a problematic EC driver change from the 4.13 cycle that
introduced a system resume regression on Thinkpad X240 (Rafael
Wysocki).
- Clean up device tables handling in the ACPI core and the related
part of the device properties framework (Andy Shevchenko).
- Update the sysfs ABI documentatio of the dock and the INT3407
special device drivers (Aishwarya Pant).
- Add an expected switch fall-through marker to the SPCR table
parsing code (Gustavo Silva)"
* tag 'acpi-4.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
ACPI: dock: document sysfs interface
ACPI / DPTF: Document dptf_power sysfs atttributes
device property: Constify device_get_match_data()
ACPI / bus: Rename acpi_get_match_data() to acpi_device_get_match_data()
ACPI / bus: Remove checks in acpi_get_match_data()
ACPI / bus: Do not traverse through non-existed device table
ACPI: SPCR: Mark expected switch fall-through in acpi_parse_spcr
ACPI / EC: Restore polling during noirq suspend/resume phases
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git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull power management fixes from Rafael Wysocki:
"These fix a recently introduced build issue related to cpuidle and two
bugs in the PM core, update cpuidle documentation and clean up memory
allocations in the operating performance points (OPP) framework.
Specifics:
- Fix a recently introduced build issue related to cpuidle by
covering all of the relevant combinations of Kconfig options
in its header (Rafael Wysocki).
- Add missing invocation of pm_runtime_drop_link() to the
!CONFIG_SRCU variant of __device_link_del() (Lukas Wunner).
- Fix unbalanced IRQ enable in the wakeup interrupts framework
(Tony Lindgren).
- Update cpuidle sysfs ABI documentation (Aishwarya Pant).
- Use GFP_KERNEL instead of GFP_ATOMIC for allocating memory
in dev_pm_opp_init_cpufreq_table() (Jia-Ju Bai)"
* tag 'pm-4.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
PM: cpuidle: Fix cpuidle_poll_state_init() prototype
PM / runtime: Update links_count also if !CONFIG_SRCU
PM / wakeirq: Fix unbalanced IRQ enable for wakeirq
Documentation/ABI: update cpuidle sysfs documentation
opp: cpu: Replace GFP_ATOMIC with GFP_KERNEL in dev_pm_opp_init_cpufreq_table
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git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging
Pull hwmon fix from Guenter Roeck:
"Fix bad temperature display on Ryzen/Threadripper"
* tag 'hwmon-for-linus-v4.16-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/groeck/linux-staging:
hwmon: (k10temp) Only apply temperature offset if result is positive
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Pull virtio fixes from Michael Tsirkin:
"This includes a bugfix for virtio 9p fs. It also fixes hybernation for
s390 guests with virtio devices"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
virtio/s390: implement PM operations for virtio_ccw
9p/trans_virtio: discard zero-length reply
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Now that USB_UHCI_BIG_ENDIAN_MMIO and USB_UHCI_BIG_ENDIAN_DESC are moved
outside of the USB_SUPPORT conditional, simply select them from
SPARC_LEON rather than by the symbol's defaults in drivers/usb/Kconfig,
similar to how it is done for USB_EHCI_BIG_ENDIAN_MMIO and
USB_EHCI_BIG_ENDIAN_DESC.
Signed-off-by: James Hogan <jhogan@kernel.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Corentin Labbe <clabbe.montjoie@gmail.com>
Cc: sparclinux@vger.kernel.org
Cc: linux-usb@vger.kernel.org
Acked-by: David S. Miller <davem@davemloft.net>
Patchwork: https://patchwork.linux-mips.org/patch/18560/
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Move the Kconfig symbols USB_UHCI_BIG_ENDIAN_MMIO and
USB_UHCI_BIG_ENDIAN_DESC out of drivers/usb/host/Kconfig, which is
conditional upon USB && USB_SUPPORT, so that it can be freely selected
by platform Kconfig symbols in architecture code.
For example once the MIPS_GENERIC platform selects are fixed in commit
2e6522c56552 ("MIPS: Fix typo BIG_ENDIAN to CPU_BIG_ENDIAN"), the MIPS
32r6_defconfig warns like so:
warning: (MIPS_GENERIC) selects USB_UHCI_BIG_ENDIAN_MMIO which has unmet direct dependencies (USB_SUPPORT && USB)
warning: (MIPS_GENERIC) selects USB_UHCI_BIG_ENDIAN_DESC which has unmet direct dependencies (USB_SUPPORT && USB)
Fixes: 2e6522c56552 ("MIPS: Fix typo BIG_ENDIAN to CPU_BIG_ENDIAN")
Signed-off-by: James Hogan <jhogan@kernel.org>
Cc: Corentin Labbe <clabbe.montjoie@gmail.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@mips.com>
Cc: linux-usb@vger.kernel.org
Cc: linux-mips@linux-mips.org
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Patchwork: https://patchwork.linux-mips.org/patch/18559/
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* acpi-ec:
ACPI / EC: Restore polling during noirq suspend/resume phases
* acpi-tables:
ACPI: SPCR: Mark expected switch fall-through in acpi_parse_spcr
* acpi-doc:
ACPI: dock: document sysfs interface
ACPI / DPTF: Document dptf_power sysfs atttributes
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* pm-cpuidle:
PM: cpuidle: Fix cpuidle_poll_state_init() prototype
Documentation/ABI: update cpuidle sysfs documentation
* pm-opp:
opp: cpu: Replace GFP_ATOMIC with GFP_KERNEL in dev_pm_opp_init_cpufreq_table
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Fixed a mistake in which several entries were duplicated in the DMI list
from the below commit
fe486138 platform/x86: dell-laptop: Add 2-in-1 devices to the DMI whitelist
Signed-off-by: Alexander Abrosimov <alexander.n.abrosimov@gmail.com>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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Commit 9862b43624a5 ("platform/x86: dell-laptop: Allocate buffer on heap
rather than globally")
broke one request, changed it back to the original value.
Tested on a Dell E6540, backlight came back.
Fixes: 9862b43624a5 ("platform/x86: dell-laptop: Allocate buffer on heap rather than globally")
Signed-off-by: Laszlo Toth <laszlth@gmail.com>
Reviewed-by: Pali Rohár <pali.rohar@gmail.com>
Reviewed-by: Mario Limonciello <mario.limonciello@dell.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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Lenovo E41-20 needs more time than 100ms to read VPC,
the funtion keys always failed responding.
Increase timeout to get the value from VPC, then
the funtion keys like mic mute key work well.
Signed-off-by: Aaron Ma <aaron.ma@canonical.com>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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wmi_dev_probe() allocates one byte less than necessary, thus
subsequent sprintf() call writes trailing zero past the end
of the 'buf':
BUG: KASAN: slab-out-of-bounds in vsnprintf+0xda4/0x1240
Write of size 1 at addr ffff880423529caf by task kworker/1:1/32
Call Trace:
dump_stack+0xb3/0x14d
print_address_description+0xd7/0x380
kasan_report+0x166/0x2b0
vsnprintf+0xda4/0x1240
sprintf+0x9b/0xd0
wmi_dev_probe+0x1c3/0x400
driver_probe_device+0x5d1/0x990
bus_for_each_drv+0x109/0x190
__device_attach+0x217/0x360
bus_probe_device+0x1ad/0x260
deferred_probe_work_func+0x10f/0x5d0
process_one_work+0xa8b/0x1dc0
worker_thread+0x20d/0x17d0
kthread+0x311/0x3d0
ret_from_fork+0x3a/0x50
Allocated by task 32:
kasan_kmalloc+0xa0/0xd0
__kmalloc+0x14f/0x3e0
wmi_dev_probe+0x182/0x400
driver_probe_device+0x5d1/0x990
bus_for_each_drv+0x109/0x190
__device_attach+0x217/0x360
bus_probe_device+0x1ad/0x260
deferred_probe_work_func+0x10f/0x5d0
process_one_work+0xa8b/0x1dc0
worker_thread+0x20d/0x17d0
kthread+0x311/0x3d0
ret_from_fork+0x3a/0x50
Increment allocation size to fix this.
Fixes: 44b6b7661132 ("platform/x86: wmi: create userspace interface for drivers")
Signed-off-by: Andrey Ryabinin <aryabinin@virtuozzo.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
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Pull NVMe fixes from Keith:
"After syncing with Christoph and Sagi, we feel this is a good time to
send our latest fixes across most of the nvme components for 4.16"
* 'nvme-4.16-rc' of git://git.infradead.org/nvme:
nvme-rdma: fix sysfs invoked reset_ctrl error flow
nvmet: Change return code of discard command if not supported
nvme-pci: Fix timeouts in connecting state
nvme-pci: Remap CMB SQ entries on every controller reset
nvme: fix the deadlock in nvme_update_formats
nvme: Don't use a stack buffer for keep-alive command
nvme_fc: cleanup io completion
nvme_fc: correct abort race condition on resets
nvme: Fix discard buffer overrun
nvme: delete NVME_CTRL_LIVE --> NVME_CTRL_CONNECTING transition
nvme-rdma: use NVME_CTRL_CONNECTING state to mark init process
nvme: rename NVME_CTRL_RECONNECTING state to NVME_CTRL_CONNECTING
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git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 PTI and Spectre related fixes and updates from Ingo Molnar:
"Here's the latest set of Spectre and PTI related fixes and updates:
Spectre:
- Add entry code register clearing to reduce the Spectre attack
surface
- Update the Spectre microcode blacklist
- Inline the KVM Spectre helpers to get close to v4.14 performance
again.
- Fix indirect_branch_prediction_barrier()
- Fix/improve Spectre related kernel messages
- Fix array_index_nospec_mask() asm constraint
- KVM: fix two MSR handling bugs
PTI:
- Fix a paranoid entry PTI CR3 handling bug
- Fix comments
objtool:
- Fix paranoid_entry() frame pointer warning
- Annotate WARN()-related UD2 as reachable
- Various fixes
- Add Add Peter Zijlstra as objtool co-maintainer
Misc:
- Various x86 entry code self-test fixes
- Improve/simplify entry code stack frame generation and handling
after recent heavy-handed PTI and Spectre changes. (There's two
more WIP improvements expected here.)
- Type fix for cache entries
There's also some low risk non-fix changes I've included in this
branch to reduce backporting conflicts:
- rename a confusing x86_cpu field name
- de-obfuscate the naming of single-TLB flushing primitives"
* 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (41 commits)
x86/entry/64: Fix CR3 restore in paranoid_exit()
x86/cpu: Change type of x86_cache_size variable to unsigned int
x86/spectre: Fix an error message
x86/cpu: Rename cpu_data.x86_mask to cpu_data.x86_stepping
selftests/x86/mpx: Fix incorrect bounds with old _sigfault
x86/mm: Rename flush_tlb_single() and flush_tlb_one() to __flush_tlb_one_[user|kernel]()
x86/speculation: Add <asm/msr-index.h> dependency
nospec: Move array_index_nospec() parameter checking into separate macro
x86/speculation: Fix up array_index_nospec_mask() asm constraint
x86/debug: Use UD2 for WARN()
x86/debug, objtool: Annotate WARN()-related UD2 as reachable
objtool: Fix segfault in ignore_unreachable_insn()
selftests/x86: Disable tests requiring 32-bit support on pure 64-bit systems
selftests/x86: Do not rely on "int $0x80" in single_step_syscall.c
selftests/x86: Do not rely on "int $0x80" in test_mremap_vdso.c
selftests/x86: Fix build bug caused by the 5lvl test which has been moved to the VM directory
selftests/x86/pkeys: Remove unused functions
selftests/x86: Clean up and document sscanf() usage
selftests/x86: Fix vDSO selftest segfault for vsyscall=none
x86/entry/64: Remove the unused 'icebp' macro
...
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x86_mask is a confusing name which is hard to associate with the
processor's stepping.
Additionally, correct an indent issue in lib/cpu.c.
Signed-off-by: Jia Zhang <qianyue.zj@alibaba-inc.com>
[ Updated it to more recent kernels. ]
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: bp@alien8.de
Cc: tony.luck@intel.com
Link: http://lkml.kernel.org/r/1514771530-70829-1-git-send-email-qianyue.zj@alibaba-inc.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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So far models of the Dell Venue 8 Pro, with a panel with MIPI panel
index = 3, one of which has been kindly provided to me by Jan Brummer,
where not working with the i915 driver, giving a black screen on the
first modeset.
The problem with at least these Dells is that their VBT defines a MIPI
ASSERT sequence, but not a DEASSERT sequence. Instead they DEASSERT the
reset in their INIT_OTP sequence, but the deassert must be done before
calling intel_dsi_device_ready(), so that is too late.
Simply doing the INIT_OTP sequence earlier is not enough to fix this,
because the INIT_OTP sequence also sends various MIPI packets to the
panel, which can only happen after calling intel_dsi_device_ready().
This commit fixes this by splitting the INIT_OTP sequence into everything
before the first DSI packet and everything else, including the first DSI
packet. The first part (everything before the first DSI packet) is then
used as deassert sequence.
Changed in v2:
-Split the init OTP sequence into a deassert reset and the actual init
OTP sequence, instead of calling it earlier and then having the first
mipi_exec_send_packet() call call intel_dsi_device_ready().
Changes in v3:
-Move the whole shebang to intel_bios.c
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=82880
References: https://bugs.freedesktop.org/show_bug.cgi?id=101205
Cc: Jan-Michael Brummer <jan.brummer@tabos.org>
Reported-by: Jan-Michael Brummer <jan.brummer@tabos.org>
Tested-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180214082151.25015-3-hdegoede@redhat.com
(cherry picked from commit fb38e7ade9af4f3e96f5916c3f6f19bfc7d5f961)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Make intel_bios_cleanup function free the DSI VBT data structures which
are memdup-ed by parse_mipi_config() and parse_mipi_sequence().
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180214082151.25015-2-hdegoede@redhat.com
(cherry picked from commit e1b86c85f6c2029c31dba99823b6f3d9e15eaacd)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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Add an intel_bios_cleanup() function to act as counterpart of
intel_bios_init() and move the cleanup of vbt related resources there,
putting it in the same file as the allocation.
Changed in v2:
-While touching the code anyways, remove the unnecessary:
if (dev_priv->vbt.child_dev) done before kfree(dev_priv->vbt.child_dev)
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180214082151.25015-1-hdegoede@redhat.com
(cherry picked from commit 785f076b3ba781804f2b22b347b4431e3efb0ab3)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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At least on the Chuwi Vi8 (non pro/plus) the LCD panel will show an image
shifted aprox. 20% to the left (with wraparound) and sometimes also wrong
colors, showing that the panel controller is starting with sampling the
datastream somewhere mid-line. This happens after the first blanking and
re-init of the panel.
After looking at drm.debug output I noticed that initially we inherit the
cdclk of 333333 KHz set by the GOP, but after the re-init we picked 266667
KHz, which turns out to be the cause of this problem, a quick hack to hard
code the cdclk to 333333 KHz makes the problem go away.
I've tested this on various Bay Trail devices, to make sure this not does
cause regressions on other devices and the higher cdclk does not cause
any problems on the following devices:
-GP-electronic T701 1024x600 333333 KHz cdclk after this patch
-PEAQ C1010 1920x1200 333333 KHz cdclk after this patch
-PoV mobii-wintab-800w 800x1280 333333 KHz cdclk after this patch
-Asus Transformer-T100TA 1368x768 320000 KHz cdclk after this patch
Also interesting wrt this is the comment in vlv_calc_cdclk about the
existing workaround to avoid 200 Mhz as clock because that causes issues
in some cases.
This commit extends the "do not use 200 Mhz" workaround with an extra
check to require atleast 320000 KHz (avoiding 266667 KHz) when a DSI
panel is active.
Changes in v2:
-Change the commit message and the code comment to not treat the GOP as
a reference, the GOP should not be treated as a reference
Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171220105017.11259-1-hdegoede@redhat.com
(cherry picked from commit c8dae55a8ced625038d52d26e48273707fab2688)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
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git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"A larger batch of fixes than we'd like. Roughly 1/3 fixes for new
code, 1/3 fixes for stable and 1/3 minor things.
There's four commits fixing bugs when using 16GB huge pages on hash,
caused by some of the preparatory changes for pkeys.
Two fixes for bugs in the enhanced IRQ soft masking for local_t, one
of which broke KVM in some circumstances.
Four fixes for Power9. The most bizarre being a bug where futexes
stopped working because a NULL pointer dereference didn't trap during
early boot (it aliased the kernel mapping). A fix for memory hotplug
when using the Radix MMU, and a fix for live migration of guests using
the Radix MMU.
Two fixes for hotplug on pseries machines. One where we weren't
correctly updating NUMA info when CPUs are added and removed. And the
other fixes crashes/hangs seen when doing memory hot remove during
boot, which is apparently a thing people do.
Finally a handful of build fixes for obscure configs and other minor
fixes.
Thanks to: Alexey Kardashevskiy, Aneesh Kumar K.V, Balbir Singh, Colin
Ian King, Daniel Henrique Barboza, Florian Weimer, Guenter Roeck,
Harish, Laurent Vivier, Madhavan Srinivasan, Mauricio Faria de
Oliveira, Nathan Fontenot, Nicholas Piggin, Sam Bobroff"
* tag 'powerpc-4.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
selftests/powerpc: Fix to use ucontext_t instead of struct ucontext
powerpc/kdump: Fix powernv build break when KEXEC_CORE=n
powerpc/pseries: Fix build break for SPLPAR=n and CPU hotplug
powerpc/mm/hash64: Zero PGD pages on allocation
powerpc/mm/hash64: Store the slot information at the right offset for hugetlb
powerpc/mm/hash64: Allocate larger PMD table if hugetlb config is enabled
powerpc/mm: Fix crashes with 16G huge pages
powerpc/mm: Flush radix process translations when setting MMU type
powerpc/vas: Don't set uses_vas for kernel windows
powerpc/pseries: Enable RAS hotplug events later
powerpc/mm/radix: Split linear mapping on hot-unplug
powerpc/64s/radix: Boot-time NULL pointer protection using a guard-PID
ocxl: fix signed comparison with less than zero
powerpc/64s: Fix may_hard_irq_enable() for PMI soft masking
powerpc/64s: Fix MASKABLE_RELON_EXCEPTION_HV_OOL macro
powerpc/numa: Invalidate numa_cpu_lookup_table on cpu remove
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When reset_controller that is invoked by sysfs fails,
it enters an error flow which practically removes the
nvme ctrl entirely (similar to delete_ctrl flow). It
causes the system to hang, since a sysfs attribute cannot
be unregistered by one of its own methods.
This can be fixed by calling delete_ctrl as a work rather
than sequential code. In addition, it should give the ctrl
a chance to recover using reconnection mechanism (consistant
with FC reset_ctrl error flow). Also, while we're here, return
suitable errno in case the reset ended with non live ctrl.
Signed-off-by: Nitzan Carmi <nitzanc@mellanox.com>
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
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Execute discard command on block device that doesn't support it
should return success.
Returning internal error while using multi-path fails the path.
Reviewed-by: Max Gurtovoy <maxg@mellanox.com>
Signed-off-by: Israel Rukshin <israelr@mellanox.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
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Suspend/Resume to/from disk currently fails. Let us wire
up the necessary callbacks. This is mostly just forwarding
the requests to the virtio drivers. The only thing that
has to be done in virtio_ccw itself is to re-set the
virtio revision.
Suggested-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Message-Id: <20171207141102.70190-2-borntraeger@de.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
[CH: merged <20171218083706.223836-1-borntraeger@de.ibm.com> to fix
!CONFIG_PM configs]
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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The optional DT parameter max-frequency could init the max bus frequency.
So take care of this, before setting the max bus frequency.
Fixes: 660fc733bd74 ("mmc: bcm2835: Add new driver for the sdhost controller.")
Signed-off-by: Phil Elwell <phil@raspberrypi.org>
Signed-off-by: Stefan Wahren <stefan.wahren@i2se.com>
Cc: <stable@vger.kernel.org> # 4.12+
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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This reverts commit 0a44697627d17a66d7dc98f17aeca07ca79c5c20.
This commit was initially intended to fix problems with hs200 and hs400
on some boards, mainly the odroid-c2. The OC2 (Rev 0.2) I have performs
well in this modes, so I could not confirm these issues.
We've had several reports about the issues being still present on (some)
OC2, so apparently, this change does not do what it was supposed to do.
Maybe the eMMC signal quality is on the edge on the board. This may
explain the variability we see in term of stability, but this is just a
guess. Lowering the max_frequency to 100Mhz seems to do trick for those
affected by the issue
Worse, the commit created new issues (CRC errors and hangs) on other
boards, such as the kvim 1 and 2, the p200 or the libretech-cc.
According to amlogic, the Tx phase should not be tuned and left in its
default configuration, so it is best to just revert the commit.
Fixes: 0a44697627d1 ("mmc: meson-gx: include tx phase in the tuning process")
Cc: <stable@vger.kernel.org> # 4.14+
Signed-off-by: Jerome Brunet <jbrunet@baylibre.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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Fix one typo of render_mmio trace, exchange the mmio value of old and new.
Signed-off-by: Weinan Li <weinan.z.li@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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