We'll be adding non-PCI isa bridge support so let's not
have all the definition in pci-bridge.h
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Document the device-tree bindings defining the the properties under
the @power-mgt node in the device tree that describe the idle states
for Linux running on baremetal POWER servers.
These bindings are documented separately instead of using the the
common idle state bindings since the idle-states on POWER servers
are exposed as property arrays where as the common idle state bindings
expect idle-states to be described as nodes.
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
The power9_idle_stop method currently takes only the requested stop
level as a parameter and picks up the rest of the PSSCR bits from a
hand-coded macro. This is not a very flexible design, especially when
the firmware has the capability to communicate the psscr value and the
mask associated with a particular stop state via device tree.
This patch modifies the power9_idle_stop API to take as parameters the
PSSCR value and the PSSCR mask corresponding to the stop state that
needs to be set. These PSSCR value and mask are respectively obtained
by parsing the "ibm,cpu-idle-state-psscr" and
"ibm,cpu-idle-state-psscr-mask" fields from the device tree.
In addition to this, the patch adds support for handling stop states
for which ESL and EC bits in the PSSCR are zero. As per the
architecture, a wakeup from these stop states resumes execution from
the subsequent instruction as opposed to waking up at the System
Vector.
The older firmware sets only the Requested Level (RL) field in the
psscr and psscr-mask exposed in the device tree. For older firmware
where psscr-mask=0xf, this patch will set the default sane values that
the set for for remaining PSSCR fields (i.e PSLL, MTL, ESL, EC, and
TR). For the new firmware, the patch will validate that the invariants
required by the ISA for the psscr values are maintained by the
firmware.
This skiboot patch that exports fully populated PSSCR values and the
mask for all the stop states can be found here:
https://lists.ozlabs.org/pipermail/skiboot/2016-September/004869.html
[Optimize the number of instructions before entering STOP with
ESL=EC=0, validate the PSSCR values provided by the firimware
maintains the invariants required as per the ISA suggested by Balbir
Singh]
Acked-by: Balbir Singh <bsingharora@gmail.com>
Signed-off-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
In the current code for powernv_add_idle_states, there is a lot of code
duplication while initializing an idle state in powernv_states table.
Add an inline helper function to populate the powernv_states[] table
for a given idle state. Invoke this for populating the "Nap",
"Fastsleep" and the stop states in powernv_add_idle_states.
Signed-off-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Acked-by: Balbir Singh <bsingharora@gmail.com>
Acked-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Balbir pointed out that the name of the function pnv_arch300_idle_init
was inconsistent with the names of the variables and functions
pertaining to POWER9 features in book3s_idle.S.
This patch renames pnv_arch300_idle_init to pnv_power9_idle_init.
This patch does not change any behaviour.
Signed-off-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Currently all the low-power idle states are expected to wake up
at reset vector 0x100. Which is why the macro IDLE_STATE_ENTER_SEQ
that puts the CPU to an idle state and never returns.
On ISA v3.0, when the ESL and EC bits in the PSSCR are zero, the CPU
is expected to wake up at the next instruction of the idle
instruction.
This patch adds a new macro named IDLE_STATE_ENTER_SEQ_NORET for the
no-return variant and reuses the name IDLE_STATE_ENTER_SEQ
for a variant that allows resuming operation at the instruction next
to the idle-instruction.
Acked-by: Balbir Singh <bsingharora@gmail.com>
Signed-off-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Add detection of NPU2 PHBs. NPU2/NVLink2 has a different register
layout for the TCE kill register therefore TCE invalidation should be
done via the OPAL call rather than using the register directly as it
is for PHB3 and NVLink1. This changes TCE invalidation to use the OPAL
call in the case of a NPU2 PHB model.
Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
POWER9 contains an off core mmu called the nest mmu (NMMU). This is
used by other hardware units on the chip to translate virtual
addresses into real addresses. The unit attempting an address
translation provides the majority of the context required for the
translation request except for the base address of the partition table
(ie. the PTCR) which needs to be programmed into the NMMU.
This patch adds a call to OPAL to set the PTCR for the nest mmu in
opal_init().
Signed-off-by: Alistair Popple <alistair@popple.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Relax the check preventing us from hotplugging into an offline node.
This limitation was added in commit 482ec7c403 ("[PATCH] powerpc numa:
Support sparse online node map") to prevent adding resources to an
uninitialized node.
These days, there is no harm in doing so. The addition will actually
cause the node to be initialized and onlined; add_memory_resource()
calls hotadd_new_pgdat() (if necessary) and node_set_online().
Signed-off-by: Reza Arbab <arbab@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
The flow of the main loop in parse_numa_properties() is overly
complicated. Simplify it to be less confusing and easier to read.
No functional change.
The end of the main loop in parse_numa_properties() looks like this:
for_each_node_by_type(...) {
...
if (!condition) {
if (--ranges)
goto new_range;
else
continue;
}
statement();
if (--ranges)
goto new_range;
/* else
* continue; <- implicit, this is the end of the loop
*/
}
The only effect of !condition is to skip execution of statement(). This
can be rewritten in a simpler way:
for_each_node_by_type(...) {
...
if (condition)
statement();
if (--ranges)
goto new_range;
}
Signed-off-by: Reza Arbab <arbab@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
There are chances that multiple CPUs can call crash_fadump() simultaneously
and would start duplicating same info to vmcoreinfo ELF note section. This
causes makedumpfile to fail during kdump capture. One example is,
triggering dumprestart from HMC which sends system reset to all the CPUs at
once.
makedumpfile --dump-dmesg /proc/vmcore
read_vmcoreinfo_basic_info: Invalid data in /tmp/vmcoreinfoyjgxlL: CRASHTIME=1475605971CRASHTIME=1475605971CRASHTIME=1475605971CRASHTIME=1475605971CRASHTIME=1475605971CRASHTIME=1475605971CRASHTIME=1475605971CRASHTIME=1475605971
makedumpfile Failed.
Running makedumpfile --dump-dmesg /proc/vmcore failed (1).
makedumpfile -d 31 -l /proc/vmcore
read_vmcoreinfo_basic_info: Invalid data in /tmp/vmcoreinfo1mmVdO: CRASHTIME=1475605971CRASHTIME=1475605971CRASHTIME=1475605971CRASHTIME=1475605971CRASHTIME=1475605971CRASHTIME=1475605971CRASHTIME=1475605971CRASHTIME=1475605971
makedumpfile Failed.
Running makedumpfile -d 31 -l /proc/vmcore failed (1).
Signed-off-by: Mahesh Salgaonkar <mahesh@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
The proto VSID is built using both the MMU context id and effective
segment ID (ESID). We should not have overlapping bits between those.
That could result in us having a VSID collision. With the current code
we missed masking the top bits of the ESID. This implies for kernel
address we ended up using the top 4 bits of the ESID as part of the
proto VSID, which is wrong.
The current code use the top 4 context values (0x7fffc - 0x7ffff) for
the kernel. With those context IDs used for the kernel, we don't run
into VSID collisions because we get the same proto VSID irrespective of
whether we mask the ESID bits or not. eg:
ea = 0xf000000000000000
context = 0x7ffff
w/out masking:
proto_vsid = (0x7ffff << 6 | 0xf000000000000000 >> 40)
= (0x1ffffc0 | 0xf00000)
= 0x1ffffc0
with masking:
proto_vsid = (0x7ffff << 6 | ((0xf000000000000000 >> 40) & 0x3f))
= (0x1ffffc0 | (0xf00000 & 0x3f))
= 0x1ffffc0 | 0)
= 0x1ffffc0
So although there is no bug, the code is still overly subtle, so fix it
to save ourselves pain in future.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
With bpf_jit_binary_alloc(), we allocate at a page granularity and fill
the rest of the space with illegal instructions to mitigate BPF spraying
attacks, while having the actual JIT'ed BPF program at a random location
within the allocated space. Under this scenario, it would be better to
flush the entire allocated buffer rather than just the part containing
the actual program. We already flush the buffer from start to the end of
the BPF program. Extend this to include the illegal instructions after
the BPF program.
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Daniel Borkmann <daniel@iogearbox.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
We have a check earlier to ensure we don't proceed if image is NULL. As
such, the redundant check can be removed.
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
[Added similar changes for classic BPF JIT]
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Acked-by: Alexei Starovoitov <ast@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
During EEH recovery, we deconfigure all AFUs whilst leaving the
corresponding vPHB and virtual PCI device in place.
If something attempts to interact with the AFU's PCI config space (e.g.
running lspci) after the AFU has been deconfigured and before it's
reconfigured, cxl_pcie_{read,write}_config() will read invalid values from
the deconfigured struct cxl_afu and proceed to Oops when they try to
dereference pointers that have been set to NULL during deconfiguration.
Add a rwsem to struct cxl_afu so we can prevent interaction with config
space while the AFU is deconfigured.
Reported-by: Pradipta Ghosh <pradghos@in.ibm.com>
Suggested-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Cc: stable@vger.kernel.org # v4.9+
Signed-off-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Signed-off-by: Vaibhav Jain <vaibhav@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This change adds a force psl data cache flush during device shutdown
callback. This should reduce a possibility of psl holding a dirty
cache line while the CAPP is being reinitialized, which may result in
a UE [load/store] machine check error.
Signed-off-by: Vaibhav Jain <vaibhav@linux.vnet.ibm.com>
Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Acked-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
The kernel API does not use anything from this header file.
Signed-off-by: Greg Kurz <groug@kaod.org>
Reviewed-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Acked-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This function already has multiple exit points, so there's no harm
adding another. Although it looks odd to return directly in a function
which takes a lock, we've actually just dropped the mmap_sem in this
code, so there's really no reason to go via a label. And it means we can
drop the unhelpfully named out2 label.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
[mpe: Rewrite change log]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Setting err and going to ldst_done just returns 0, without using err, so
just return 0 directly. We already do that for other call sites in this
function.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
[mpe: Rewrite change log]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
The RTAS device-tree node's refcount has been increased by one in
the function call of_find_node_by_name(), but it's missed to be
decreased by one in the error path. It leads to unbalanced refcount
on RTAS device-tree node.
This fixes above issue by decreasing RTAS device-tree node's refcount
in error path.
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This uses of_property_read_u32() in rtas_initialize() so that we
needn't explicitly care the CPU's endian.
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
This removes the unnecessary nested if statements in function
rtas_initialize(), to simplify the code. No functional changes
introduced.
Signed-off-by: Gavin Shan <gwshan@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Use kmalloc_array(), which checks for overflow of the multiplication,
rather than doing it by hand.
Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
In commit a4b349540a ("powerpc/mm: Cleanup LPCR defines") we updated
LPCR_VRMASD wrongly as below.
-#define LPCR_VRMASD (0x1ful << (63-16))
+#define LPCR_VRMASD_SH 47
+#define LPCR_VRMASD (ASM_CONST(1) << LPCR_VRMASD_SH)
We initialize the VRMA bits in LPCR to 0x00 in kvm. Hence using a
different mask value as above while updating lpcr should not have any
impact.
This patch updates it to the correct value.
Fixes: a4b349540a ("powerpc/mm: Cleanup LPCR defines")
Reported-by: Ram Pai <linuxram@us.ibm.com>
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Jia He <hejianet@gmail.com>
Acked-by: Paul Mackerras <paulus@ozlabs.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Currently we have optimized hand-coded assembly checksum routines for
big-endian 64-bit systems, but for little-endian we use the generic C
routines. This modifies the optimized routines to work for
little-endian. With this, we no longer need to enable
CONFIG_GENERIC_CSUM. This also fixes a couple of comments in
checksum_64.S so they accurately reflect what the associated instruction
does.
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
[mpe: Use the more common __BIG_ENDIAN__]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
These functions compute an IP checksum by computing a 64-bit sum and
folding it to 32 bits (the "nofold" in their names refers to folding
down to 16 bits). However, doing (u32) (s + (s >> 32)) is not
sufficient to fold a 64-bit sum to 32 bits correctly. The addition
can produce a carry out from bit 31, which needs to be added in to
the sum to produce the correct result.
To fix this, we copy the from64to32() function from lib/checksum.c
and use that.
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
The OPAL memory console is reported to be size zero, as we do not
initialise the struct attr with any size information due to the size
being variable. This leads users to think that the console is empty.
Instead report the maximum size.
Signed-off-by: Joel Stanley <joel@jms.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
We now support THP with both 64k and 4K page size configuration
for radix. (hash only support THP with 64K page size). Hence we
will have CONFIG_TRANSPARENT_HUGEPAGE enabled for both PPC_64K
and PPC_4K config. Since we only need large pmd page table
with hash configuration (to store the slot information
in the second half of the table) restrict the large pmd page table
to THP and 64K configs.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Reviewed-by: Anshuman Khandual <khandual@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
We don't do this for other page table entries. So lets keep this simple
and always return false for hugepd check on a 64K page size config.
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Pull x86 fix from Thomas Gleixner:
"Restore the retrigger callbacks in the IO APIC irq chips. That
addresses a long standing regression which got introduced with the
rewrite of the x86 irq subsystem two years ago and went unnoticed so
far"
* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/ioapic: Restore IO-APIC irq_chip retrigger callback
Pull smp/hotplug fix from Thomas Gleixner:
"Remove an unused variable which is a leftover from the notifier
removal"
* 'smp-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
cpu/hotplug: Remove unused but set variable in _cpu_down()
Random fixes and cleanups that accumulated over the time.
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull virtio/vhost fixes from Michael Tsirkin:
"Random fixes and cleanups that accumulated over the time"
* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost:
virtio/s390: virtio: constify virtio_config_ops structures
virtio/s390: add missing \n to end of dev_err message
virtio/s390: support READ_STATUS command for virtio-ccw
tools/virtio/ringtest: tweaks for s390
tools/virtio/ringtest: fix run-on-all.sh for offline cpus
virtio_console: fix a crash in config_work_handler
vhost/scsi: silence uninitialized variable warning
vhost: scsi: constify target_core_fabric_ops structures
Pull thermal management fixes from Zhang Rui:
- fix a regression that thermal zone dynamically allocated sysfs
attributes are freed before they're removed, which is introduced in
4.10-rc1 (Jacob von Chorus)
- fix a boot warning because deprecated hwmon API is used (Fabio
Estevam)
- a couple of fixes for rockchip thermal driver (Brian Norris, Caesar
Wang)
* 'for-rc' of git://git.kernel.org/pub/scm/linux/kernel/git/rzhang/linux:
thermal: rockchip: fixes the conversion table
thermal: core: move tz->device.groups cleanup to thermal_release
thermal: thermal_hwmon: Convert to hwmon_device_register_with_info()
thermal: rockchip: handle set_trips without the trip points
thermal: rockchip: optimize the conversion table
thermal: rockchip: fixes invalid temperature case
thermal: rockchip: don't pass table structs by value
thermal: rockchip: improve conversion error messages
Here are a few small USB fixes for 4.10-rc5.
Most of these are gadget/dwc2 fixes for reported issues, all of these
have been in linux-next for a while. The last one is a single xhci
WARN_ON removal to handle an issue that the dwc3 driver is hitting in
the 4.10-rc tree. The warning is harmless and needs to be removed, and
a "real" fix that is more complex will show up in 4.11-rc1 for this
device.
That last patch hasn't been in linux-next yet due to the weekend timing,
but it's a "simple" WARN_ON() removal so what could go wrong? :)
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-4.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB fixes from Greg KH:
"Here are a few small USB fixes for 4.10-rc5.
Most of these are gadget/dwc2 fixes for reported issues, all of these
have been in linux-next for a while. The last one is a single xhci
WARN_ON removal to handle an issue that the dwc3 driver is hitting in
the 4.10-rc tree. The warning is harmless and needs to be removed, and
a "real" fix that is more complex will show up in 4.11-rc1 for this
device.
That last patch hasn't been in linux-next yet due to the weekend
timing, but it's a "simple" WARN_ON() removal so what could go wrong?
:)"
Famous last words.
* tag 'usb-4.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb:
xhci: remove WARN_ON if dma mask is not set for platform devices
usb: dwc2: host: fix Wmaybe-uninitialized warning
usb: dwc2: gadget: Fix GUSBCFG.USBTRDTIM value
usb: gadget: udc: atmel: remove memory leak
usb: dwc3: exynos fix axius clock error path to do cleanup
usb: dwc2: Avoid suspending if we're in gadget mode
usb: dwc2: use u32 for DT binding parameters
usb: gadget: f_fs: Fix iterations on endpoints.
usb: dwc2: gadget: Fix DMA memory freeing
usb: gadget: composite: Fix function used to free memory
Pull libnvdimm fixes from Dan Williams:
"Two fixes:
- a regression fix for the multiple-pmem-namespace-per-region support
added in 4.9. Even if an existing environment is not using that
feature the act of creating and a destroying a single namespace
with the ndctl utility will lead to the proliferation of extra
unwanted namespace devices.
- a fix for the error code returned from the pmem driver when the
memcpy_mcsafe() routine returns -EFAULT. Btrfs seems to be the only
block I/O consumer that tries to parse the meaning of the error
code when it is non-zero.
Neither of these fixes are critical, the namespace leak is awkward in
that it can cause device naming to change and complicates debugging
namespace initialization issues. The error code fix is included out of
caution for what other consumers might be expecting -EIO for block I/O
errors"
* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
libnvdimm, namespace: fix pmem namespace leak, delete when size set to zero
pmem: return EIO on read_pmem() failure
caused some of these clocks to turn off when they were always left
on before.
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Merge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux
Pull clk fix from Stephen Boyd:
"One fix for Samsung Exynos524x SoCs where recent IOMMU patches have
caused some of these clocks to turn off when they were always left on
before"
* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
clk/samsung: exynos542x: mark some clocks as critical
- More intc updates [Yuriv]
- Fix module build when unwinder is turned off
- IO Coherency Programming model updates
- Other miscll
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Merge tag 'arc-4.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc
Pull ARC fixes from Vineet Gupta:
- more intc updates [Yuriv]
- fix module build when unwinder is turned off
- IO Coherency Programming model updates
- other miscellaneous
* tag 'arc-4.10-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
ARC: Revert "ARC: mm: IOC: Don't enable IOC by default"
ARC: mm: split arc_cache_init to allow __init reaping of bulk
ARCv2: IOC: Use actual memory size to setup aperture size
ARCv2: IOC: Adhere to progamming model guidelines to avoid DMA corruption
ARCv2: IOC: refactor the IOC and SLC operations into own functions
ARC: module: Fix !CONFIG_ARC_DW2_UNWIND builds
ARCv2: save r30 on kernel entry as gcc uses it for code-gen
ARCv2: IRQ: Call entry/exit functions for chained handlers in MCIP
ARC: IRQ: Use hwirq instead of virq in mask/unmask
ARC: mmu: clarify the MMUv3 programming model
Two fixes for fallout from the hugetlb changes we merged this cycle.
Ten other fixes, four only affect Power9, and the rest are a bit of a mixture
though nothing terrible.
Thanks to:
Aneesh Kumar K.V, Anton Blanchard, Benjamin Herrenschmidt, Dave Martin, Gavin
Shan, Madhavan Srinivasan, Nicholas Piggin, Reza Arbab.
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Merge tag 'powerpc-4.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fixes from Michael Ellerman:
"Two fixes for fallout from the hugetlb changes we merged this cycle.
Ten other fixes, four only affect Power9, and the rest are a bit of a
mixture though nothing terrible.
Thanks to: Aneesh Kumar K.V, Anton Blanchard, Benjamin Herrenschmidt,
Dave Martin, Gavin Shan, Madhavan Srinivasan, Nicholas Piggin, Reza
Arbab"
* tag 'powerpc-4.10-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc: Ignore reserved field in DCSR and PVR reads and writes
powerpc/ptrace: Preserve previous TM fprs/vsrs on short regset write
powerpc/ptrace: Preserve previous fprs/vsrs on short regset write
powerpc/perf: Use MSR to report privilege level on P9 DD1
selftest/powerpc: Wrong PMC initialized in pmc56_overflow test
powerpc/eeh: Enable IO path on permanent error
powerpc/perf: Fix PM_BRU_CMPL event code for power9
powerpc/mm: Fix little-endian 4K hugetlb
powerpc/mm/hugetlb: Don't panic when we don't find the default huge page size
powerpc: Fix pgtable pmd cache init
powerpc/icp-opal: Fix missing KVM case and harden replay
powerpc/mm: Fix memory hotplug BUG() on radix
ARM:
- Fix for timer setup on VHE machines
- Drop spurious warning when the timer races against the vcpu running
again
- Prevent a vgic deadlock when the initialization fails (for stable)
s390:
- Fix a kernel memory exposure (for stable)
x86:
- Fix exception injection when hypercall instruction cannot be patched
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull KVM fixes from Radim Krčmář:
"ARM:
- Fix for timer setup on VHE machines
- Drop spurious warning when the timer races against the vcpu running
again
- Prevent a vgic deadlock when the initialization fails (for stable)
s390:
- Fix a kernel memory exposure (for stable)
x86:
- Fix exception injection when hypercall instruction cannot be
patched"
* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
KVM: s390: do not expose random data via facility bitmap
KVM: x86: fix fixing of hypercalls
KVM: arm/arm64: vgic: Fix deadlock on error handling
KVM: arm64: Access CNTHCTL_EL2 bit fields correctly on VHE systems
KVM: arm/arm64: Fix occasional warning from the timer work function
Pull SCSI target fixes from Bart Van Assche:
- two small fixes for the ibmvscsis driver
- ten patches with bug fixes for the target mode of the qla2xxx driver
- four patches that avoid that the "sparse" and "smatch" static
analyzer tools report false positives for the qla2xxx code base
* 'scsi-target-for-v4.10' of git://git.kernel.org/pub/scm/linux/kernel/git/bvanassche/linux:
qla2xxx: Disable out-of-order processing by default in firmware
qla2xxx: Fix erroneous invalid handle message
qla2xxx: Reduce exess wait during chip reset
qla2xxx: Terminate exchange if corrupted
qla2xxx: Fix crash due to null pointer access
qla2xxx: Collect additional information to debug fw dump
qla2xxx: Reset reserved field in firmware options to 0
qla2xxx: Set tcm_qla2xxx version to automatically track qla2xxx version
qla2xxx: Include ATIO queue in firmware dump when in target mode
qla2xxx: Fix wrong IOCB type assumption
qla2xxx: Avoid that building with W=1 triggers complaints about set-but-not-used variables
qla2xxx: Move two arrays from header files to .c files
qla2xxx: Declare an array with file scope static
qla2xxx: Fix indentation
ibmvscsis: Fix sleeping in interrupt context
ibmvscsis: Fix max transfer length
Pull block fixes from Jens Axboe:
"Just two small fixes for this -rc.
One is just killing an unused variable from Keith, but the other
fixes a performance regression for nbd in this series, where we
inadvertently flipped when we set MSG_MORE when outputting data"
* 'for-linus' of git://git.kernel.dk/linux-block:
nbd: only set MSG_MORE when we have more to send
blk-mq: Remove unused variable
The usual small smattering of driver specific fixes. A few bits that
stand out here:
- The R-Car patches adding fallbacks are just adding new compatible
strings to the driver so that device trees are written in a more
robustly future proof fashion, this isn't strictly a fix but it's
just new IDs and it's better to get it into mainline sooner to
improve the ABI.
- The DesignWare "switch to new API part 2" patch is actually a
misleadingly titled fix for a bit that got missed in the original
conversion.
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Merge tag 'spi-fix-v4.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
Pull spi fixes from Mark Brown:
"The usual small smattering of driver specific fixes. A few bits that
stand out here:
- the R-Car patches adding fallbacks are just adding new compatible
strings to the driver so that device trees are written in a more
robustly future proof fashion, this isn't strictly a fix but it's
just new IDs and it's better to get it into mainline sooner to
improve the ABI
- the DesignWare "switch to new API part 2" patch is actually a
misleadingly titled fix for a bit that got missed in the original
conversion"
* tag 'spi-fix-v4.10-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi:
spi: davinci: use dma_mapping_error()
spi: spi-axi: Free resources on error path
spi: pxa2xx: add missed break
spi: dw-mid: switch to new dmaengine_terminate_* API (part 2)
spi: dw: Make debugfs name unique between instances
spi: sh-msiof: Do not use C++ style comment
spi: armada-3700: Set mode bits correctly
spi: armada-3700: fix unsigned compare than zero on irq
spi: sh-msiof: Add R-Car Gen 2 and 3 fallback bindings
spi: SPI_FSL_DSPI should depend on HAS_DMA
marked for stable) and two fixups for this merge window's patches.
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Merge tag 'ceph-for-4.10-rc5' of git://github.com/ceph/ceph-client
Pull ceph fixes from Ilya Dryomov:
"Three filesystem endianness fixes (one goes back to the 2.6 era, all
marked for stable) and two fixups for this merge window's patches"
* tag 'ceph-for-4.10-rc5' of git://github.com/ceph/ceph-client:
ceph: fix bad endianness handling in parse_reply_info_extra
ceph: fix endianness bug in frag_tree_split_cmp
ceph: fix endianness of getattr mask in ceph_d_revalidate
libceph: make sure ceph_aes_crypt() IV is aligned
ceph: fix ceph_get_caps() interruption
Pull overlayfs fix from Miklos Szeredi:
"This fixes a regression introduced in this cycle"
* 'overlayfs-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
ovl: fix possible use after free on redirect dir lookup
Pull fuse fixes from Miklos Szeredi:
"Fix two regressions, one introduced in 4.9 and a less recent one in
4.2"
* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse:
fuse: fix time_to_jiffies nsec sanity check
fuse: clear FR_PENDING flag when moving requests out of pending queue
This is a set of 12 fixes including the mpt3sas one that was causing
hangs on ATA passthrough. The others are a couple of zoned block
device fixes, a SAS device detection bug which lead to SATA drives not
being matched to bays, two qla2xxx MSI fixes, a qla2xxx req for rsp
confusion caused by cut and paste, and a few other minor fixes.
Signed-off-by: James E.J. Bottomley <jejb@linux.vnet.ibm.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI fixes from James Bottomley:
"This is a set of 12 fixes including the mpt3sas one that was causing
hangs on ATA passthrough.
The others are a couple of zoned block device fixes, a SAS device
detection bug which lead to SATA drives not being matched to bays, two
qla2xxx MSI fixes, a qla2xxx req for rsp confusion caused by cut and
paste, and a few other minor fixes"
* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
scsi: mpt3sas: fix hang on ata passthrough commands
scsi: lpfc: Set elsiocb contexts to NULL after freeing it
scsi: sd: Ignore zoned field for host-managed devices
scsi: sd: Fix wrong DPOFUA disable in sd_read_cache_type
scsi: bfa: fix wrongly initialized variable in bfad_im_bsg_els_ct_request()
scsi: ses: Fix SAS device detection in enclosure
scsi: libfc: Fix variable name in fc_set_wwpn
scsi: lpfc: avoid double free of resource identifiers
scsi: qla2xxx: remove irq_affinity_notifier
scsi: qla2xxx: fix MSI-X vector affinity
scsi: qla2xxx: Fix apparent cut-n-paste error.
scsi: qla2xxx: Get mutex lock before checking optrom_state
uninitialised variables
- SWIOTLB DMA API fall-back allocation fix when the SWIOTLB buffer is
not initialised (all RAM is suitable for 32-bit DMA masks)
- Fix the bad_mode function returning for unhandled exceptions coming
from user space
- Fix name clash in __page_to_voff()
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Catalin Marinas:
- avoid potential stack information leak via the ptrace ABI caused by
uninitialised variables
- SWIOTLB DMA API fall-back allocation fix when the SWIOTLB buffer is
not initialised (all RAM is suitable for 32-bit DMA masks)
- fix the bad_mode function returning for unhandled exceptions coming
from user space
- fix name clash in __page_to_voff()
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: avoid returning from bad_mode
arm64/ptrace: Reject attempts to set incomplete hardware breakpoint fields
arm64/ptrace: Avoid uninitialised struct padding in fpr_set()
arm64/ptrace: Preserve previous registers for short regset write
arm64/ptrace: Preserve previous registers for short regset write
arm64/ptrace: Preserve previous registers for short regset write
arm64: mm: avoid name clash in __page_to_voff()
arm64: Fix swiotlb fallback allocation
kvm_s390_get_machine() populates the facility bitmap by copying bytes
from the host results that are stored in a 256 byte array in the prefix
page. The KVM code does use the size of the target buffer (2k), thus
copying and exposing unrelated kernel memory (mostly machine check
related logout data).
Let's use the size of the source buffer instead. This is ok, as the
target buffer will always be greater or equal than the source buffer as
the KVM internal buffers (and thus S390_ARCH_FAC_LIST_SIZE_BYTE) cover
the maximum possible size that is allowed by STFLE, which is 256
doublewords. All structures are zero allocated so we can leave bytes
256-2047 unchanged.
Add a similar fix for kvm_arch_init_vm().
Reported-by: Heiko Carstens <heiko.carstens@de.ibm.com>
[found with smatch]
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
CC: stable@vger.kernel.org
Acked-by: Cornelia Huck <cornelia.huck@de.ibm.com>
