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When calling debugfs functions, there is no need to ever check the
return value. The function can work or not, but the code logic should
never do something different based on this.
This cleans up the error handling a lot, as this code will never get
hit.
Cc: Paul Mackerras <paulus@ozlabs.org>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Christoffer Dall <christoffer.dall@arm.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: "Radim KrÄmář" <rkrcmar@redhat.com>
Cc: Arvind Yadav <arvind.yadav.cs@gmail.com>
Cc: Eric Auger <eric.auger@redhat.com>
Cc: Andre Przywara <andre.przywara@arm.com>
Cc: kvm-ppc@vger.kernel.org
Cc: linuxppc-dev@lists.ozlabs.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: kvmarm@lists.cs.columbia.edu
Cc: kvm@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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The kvm struct has been bloating. For example, it's tens of kilo-bytes
for x86, which turns out to be a large amount of memory to allocate
contiguously via kzalloc. Thus, this patch does the following:
1. Uses architecture-specific routines to allocate the kvm struct via
vzalloc for x86.
2. Switches arm to __KVM_HAVE_ARCH_VM_ALLOC so that it can use vzalloc
when has_vhe() is true.
Other architectures continue to default to kalloc, as they have a
dependency on kalloc or have a small-enough struct kvm.
Signed-off-by: Marc Orr <marcorr@google.com>
Reviewed-by: Marc Zyngier <marc.zyngier@arm.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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Use new return type vm_fault_t for fault handler. For
now, this is just documenting that the function returns
a VM_FAULT value rather than an errno. Once all instances
are converted, vm_fault_t will become a distinct type.
commit 1c8f422059ae ("mm: change return type to vm_fault_t")
Signed-off-by: Souptick Joarder <jrdr.linux@gmail.com>
Reviewed-by: Matthew Wilcox <mawilcox@microsoft.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
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clk-meson
Pull Second round of update for meson clocks from Jerome Brunet:
- Add critical flag to meson8b's fdiv2 as temporary fixup for the ethernet.
- Clean up license headers with SPDX
- Add round closest support to mpll driver.
* tag 'meson-clk-4.18-2' of https://github.com/BayLibre/clk-meson:
clk: meson: axg: let mpll clocks round closest
clk: meson: mpll: add round closest support
clk: meson: meson8b: mark fclk_div2 gate clocks as CLK_IS_CRITICAL
clk: meson: use SPDX license identifiers consistently
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git://git.kernel.org/pub/scm/linux/kernel/git/kvms390/linux into HEAD
KVM: s390: Cleanups for 4.18
- cleanups for nested, clock handling, crypto, storage keys and
control register bits
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git://git.kernel.org/pub/scm/linux/kernel/git/kvmarm/kvmarm into HEAD
KVM/ARM updates for 4.18
- Lazy context-switching of FPSIMD registers on arm64
- Allow virtual redistributors to be part of two or more MMIO ranges
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skl-tplg-interface.h describes firmware format details for Skylake
topology files. It is part of the ABI and should reside in the uapi
directory.
While moving the file, also replace the license boilerplate with
the SPDX License Identifier.
No functional change.
Signed-off-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Topology manifest v4 is still part of the ABI. Move its data structures
into the uapi header file.
No functional change.
Signed-off-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Commit dc31e741db49 ("ASoC: topology: ABI - Add the types for BE
DAI") introduced sound topology files version 5. Initially, this
change made the topology code incompatible with v4 topology files.
Backwards compatibility with v4 configuration files was
subsequently added with commit 288b8da7e992 ("ASoC: topology:
Support topology file of ABI v4").
Unfortunately, backwards compatibility was never fully implemented.
First, the manifest size in (Skylake) v4 configuration files is set
to 0, which causes manifest_new_ver() to bail out with error messages
similar to the following.
snd_soc_skl 0000:00:1f.3: ASoC: invalid manifest size
snd_soc_skl 0000:00:1f.3: tplg component load failed-22
snd_soc_skl 0000:00:1f.3: Failed to init topology!
snd_soc_skl 0000:00:1f.3: ASoC: failed to probe component -22
skl_n88l25_m98357a skl_n88l25_m98357a: ASoC: failed to instantiate card -22
skl_n88l25_m98357a: probe of skl_n88l25_m98357a failed with error -22
After this problem is fixed, the following error message is seen instead.
snd_soc_skl 0000:00:1f.3: ASoC: old version of manifest
snd_soc_skl 0000:00:1f.3: Invalid descriptor token 1093938482
snd_soc_skl 0000:00:1f.3: ASoC: failed to load widget media0_in cpr 0
snd_soc_skl 0000:00:1f.3: tPlg component load failed-22
This message is seen because backwards compatibility for loading widgets
was never implemented.
The lack of audio support when running the upstream kernel on recent
Chromebooks has been reported in various forums, and can be traced back
to this problem. Attempts to fix the problem, usually by providing v5
configuration files, were only partially successful.
Let's implement backward compatibility properly to solve the problem
for good.
Signed-off-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Add LED platform driver activation from mlx-platform. This LED driver uses
the same regmap infrastructure as others Mellanox platform drivers, so LED
specific registers description is added.
System LED configuration depends on system type. To support all the
relevant types per system type LED descriptions are defined for passing
to LED platform driver.
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
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Add new ODM system types, matched according to DMI_BOARD_NAME. The
supported ODM Ids are: VMOD0001, VMOD0002, VMOD0003, VMOD0004, VMOD0005.
Patch does not introduce new systems, but allows to ODM companies to set
DMI_BOARD_VENDOR and DMI_PRODUCT_NAME on their own. It assumes that ODM
company can't change DMI_BOARD_NAME.
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
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Add extra cycle for hotplug work queue to handle the case when a signal is
It adds missed logic for signal acknowledge, by adding an extra run for
received, but no specific signal assertion is detected. Such case
theoretically can happen for example in case several units are removed or
inserted at the same time. In this situation acknowledge for some signal
can be missed at signal top aggreagation status level. The extra run will
allow to handler to acknowledge the missed signal.
The interrupt handling flow performs the next steps:
(1)
Enter mlxreg_hotplug_work_handler due to signal assertion.
Aggregation status register is changed for example from 0xff to 0xfd
(event signal group related to bit 1).
(2)
Mask aggregation interrupts, read aggregation status register and save it
(0xfd) in aggr_cache, then traverse down to handle signal from groups
related to the changed bit.
(3)
Read and mask group related signal.
Acknowledge and unmask group related signal (acknowledge should clear
aggregation status register from 0xfd back to 0xff).
(4)
Re-schedule work queue for the immediate execution.
(5)
Enter mlxreg_hotplug_work_handler due to re-scheduling.
Aggregation status is changed from previous 0xfd to 0xff.
Go over steps (2) - (5) and in case no new signal assertion
is detected - unmask aggregation interrupts.
The possible race could happen in case new signal from the same group is
asserted after step (3) and prior step (5). In such case aggregation
status will change back from 0xff to 0xfd and the value read from the
aggregation status register will be the same as a value saved in
aggr_cache. As a result the handler will not traverse down and signal
will stay unhandled.
Example of faulty flow:
The signal routing flow is as following (f.e. for of FANi removing):
- FAN status and event registers related bit is changed;
-- intermediate aggregation status register is changed;
--- top aggregation status register is changed;
---- interrupt routed to CPU and interrupt handler is invoked.
When interrupt handler is invoked it follows the next simple logic (f.e
FAN3 is removed):
(a1) mask top aggregation interrupt mask register;
(a2) read top aggregation interrupt status register and test to which
underling group belongs a signal (FANs in this case and is changed
from 0xff to 0xfb and 0xfb is saved as a last status value);
(b1) mask FANs interrupt mask register;
(b2) read FANs status register and test which FAN has been changed
FAN3 in this example);
(c1) perform relevant action;
<--------------- (FAN2 is removed at this point)
(b3) clear FANs interrupt event register to acknowledge FAN3 signal;
(b4) unmask FANs interrupt mask register
(a3) unmask top aggregation interrupt mask register;
An interrupt handler is invoked, since FAN2 interrupt is not acknowledge.
It should set top aggregation interrupt status register bit 6 (0xfb).
In step (a2)
(a2) read top aggregation interrupt and comparing it with saved value
does not show change (same 0xfb) and after (a2) execution jumps to
(a3) and signal leaved unhandled
The fix will enforce handler to traverse down in case the signal is
received, but signal assertion is not detected.
Fixes: 304887041d95 ("platform/x86: Introduce support for Mellanox hotplug driver")
Signed-off-by: Vadim Pasternak <vadimp@mellanox.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
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Use devm_* variants of kstrdup and kzalloc. Get rid of kfree cleanups.
Signed-off-by: Bastian Germann <bastiangermann@fishpost.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Make the asus_atk0110 driver use hwmon_device_register_with_groups instead
of the deprecated hwmon_device_register.
Construct the expected attribute_group array from the sensor list which
contains all needed attributes.
Remove the manual sysfs file creation and deletion that are now taken care
of by the (un)register calls via the attribute_group array.
Signed-off-by: Bastian Germann <bastiangermann@fishpost.de>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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MSR_IA32_MISC_ENABLE[18] is the MWAIT ENABLE bit, not DISABLE bit...
so
MSR_IA32_MISC_ENABLE: 0x00850089 (TCC EIST No-MWAIT PREFETCH TURBO)
should print as:
MSR_IA32_MISC_ENABLE: 0x00850089 (TCC EIST MWAIT PREFETCH TURBO)
Signed-off-by: Len Brown <len.brown@intel.com>
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The recent patch that implements table printing on a keypress introduced a
regression - turbostat prints the table almost continuously if it is run from a
daemon program.
The problem is also easy to reproduce like this:
echo | turbostat
The reason is that we cannot assume that stdin is always a TTY. It can be many
things.
This patch adds fixes the problem by limiting the new keypress functionality to
TTYs only. If stdin is not a TTY, we just sleep for the full interval time.
While on it, clean-up 'do_sleep()' to return no value, as callers do not expect
that anyway.
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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In turbostat interval mode, a newline typed on standard input
will now conclude the current interval. Data will immediately
be collected and printed for that interval, and the next interval
will be started.
This is similar to the recently added SIGUSR1 feature.
But that is for use by programs, while this is for interactive use.
Signed-off-by: Len Brown <len.brown@intel.com>
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Interval-mode turbostat now catches and discards SIGUSR1.
Thus, SIGUSR1 can be used to tell turbostat to cut short
the current measurement interval. Turbostat will then start
the next measurement interval using the regular interval length.
This can be used to give turbostat variable intervals.
Invoke turbostat with --interval LARGE_NUMBER_SEC
and have a program that has permission to send it a SIGUSR1
always before LARGE_NUMBER_SEC expires.
It may also be useful to use "--enable Time_Of_Day_Seconds"
to observe the actual interval length.
Signed-off-by: Len Brown <len.brown@intel.com>
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When running in interval-mode, catch interrupts
and print a final data record before exiting.
Signed-off-by: Len Brown <len.brown@intel.com>
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Add a Time_Of_Day_Seconds column showing when measurement
for each row was completed. Units are [sec.subsec] since Epoch,
as reported by gettimeofday(2).
While useful to correlate turbostat output with other tools,
this built-in column is disabled, by default.
Add the "--enable" option to enable such disabled-by-default
built-in columns:
"--enable Time_Of_Day_Seconds"
"--enable usec"
"--enable all", will enable all disabled-by-defauilt built-in counters.
When "--debug" is used, all disabled-by-default columns are enabled,
unless explicitly skipped using "--hide"
Signed-off-by: Len Brown <len.brown@intel.com>
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Turbostat neglects to display all package C-states for some Skylake Xeon BIOS configurations.
This is due to a typo in the table decoding MSR_PKG_CST_CONFIG_CONTROL (0x000000e2)
Here we fix that typo, according to Intel SDM, vol 4, Table 2-41 -
"MSRs Supported by Intel® Xeon® Processor Scalable Family with DisplayFamily_DisplayModel 06_55H".
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
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Signed-off-by: Len Brown <len.brown@intel.com>
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generic/475 fired an assert failure just after the filesystem was
shut down:
XFS: Assertion failed: fs_is_ok, file: fs/xfs/libxfs/xfs_refcount.c, line: 182
.....
Call Trace:
xfs_refcount_insert+0x151/0x190
xfs_refcount_adjust_extents.constprop.11+0x9c/0x470
xfs_refcount_adjust.constprop.10+0xb0/0x270
xfs_refcount_finish_one+0x25a/0x420
xfs_trans_log_finish_refcount_update+0x2a/0x40
xfs_refcount_update_finish_item+0x35/0xa0
xfs_defer_finish+0x15e/0x4d0
xfs_reflink_remap_extent+0x1bc/0x610
xfs_reflink_remap_blocks+0x6e/0x280
xfs_reflink_remap_range+0x311/0x530
vfs_clone_file_range+0x119/0x200
....
If xfs_btree_insert() returns an error, the corruption check fires
instead of passing the error back the caller. The corruption check
should be after we've checked for an error, not before, thereby
avoiding assert failures if the filesystem shuts down during a
refcount btree record insert.
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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All the realtime allocation functions deal with space on the rtdev in
units of realtime extents. However, struct xfs_rtalloc_rec confusingly
uses the word 'block' in the name, even though they're really extents.
Fix the naming problem and fix all the unit handling problems in the two
existing users.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Allison Henderson <allison.henderson@oracle.com>
Reviewed-by: Bill O'Donnell <billodo@redhat.com>
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Strengthen the rtalloc range query checks to make sure that the keys do
not run off the end of the realtime device inappropriately. Note that
the query range functions require units of rt extents, not blocks,
despite the type name.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Allison Henderson <allison.henderson@oracle.com>
Reviewed-by: Bill O'Donnell <billodo@redhat.com>
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The xfs_rtbuf_get function should check the block mapping it gets back
from bmapi_read. If there are no mappings or the mapping isn't a real
extent, we should return -EFSCORRUPTED rather than trying to read a
garbage value. We also require realtime bitmap blocks to be real,
written allocations.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Allison Henderson <allison.henderson@oracle.com>
Reviewed-by: Bill O'Donnell <billodo@redhat.com>
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xfs_rtword_t is used for bit manipulations in the realtime bitmap file.
Since we're performing bit shifts with this type, we don't want sign
extension and we don't want to be left shifting negative quantities
because that's undefined behavior.
This also shuts up these UBSAN warnings:
UBSAN: Undefined behaviour in fs/xfs/libxfs/xfs_rtbitmap.c:833:48
signed integer overflow:
-2147483648 - 1 cannot be represented in type 'int'
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Allison Henderson <allison.henderson@oracle.com>
Reviewed-by: Bill O'Donnell <billodo@redhat.com>
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The function get_raw_temp is local to the source and does not need to
be in global scope, so make it static.
Cleans up sparse warning:
drivers/hwmon/k10temp.c:149:14: warning: symbol 'get_raw_temp' was not
declared. Should it be static?
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
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Fix the below crash on Book3E 64. pgtable_page_dtor expects struct
page *arg.
Also call the destructor on non book3s platforms correctly. This frees
up the split PTL locks correctly if we had allocated them before.
Call Trace:
.kmem_cache_free+0x9c/0x44c (unreliable)
.ptlock_free+0x1c/0x30
.tlb_remove_table+0xdc/0x224
.free_pgd_range+0x298/0x500
.shift_arg_pages+0x10c/0x1e0
.setup_arg_pages+0x200/0x25c
.load_elf_binary+0x450/0x16c8
.search_binary_handler.part.11+0x9c/0x248
.do_execveat_common.isra.13+0x868/0xc18
.run_init_process+0x34/0x4c
.try_to_run_init_process+0x1c/0x68
.kernel_init+0xdc/0x130
.ret_from_kernel_thread+0x58/0x7c
Fixes: 702346768 ("powerpc/mm/nohash: Remove pte fragment dependency from nohash")
Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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In commit eae5f709a4d7 ("powerpc: Add __printf verification to
prom_printf") __printf attribute was added to prom_printf(), which
means GCC started warning about type/format mismatches. As part of
that commit we changed some "%lx" formats to "%llx" where the type is
actually unsigned long long.
Unfortunately prom_printf() doesn't know how to print "%llx", it just
prints a literal "lx", eg:
reserved memory map:
lx - lx
lx - lx
prom_printf() also doesn't know how to print "%u" (only "%lu"), it
just prints a literal "u", eg:
Max number of cores passed to firmware: u (NR_CPUS = 2048)
Instead of:
Max number of cores passed to firmware: 2048 (NR_CPUS = 2048)
This commit adds support for the missing formatters.
Fixes: eae5f709a4d7 ("powerpc: Add __printf verification to prom_printf")
Reported-by: Michael Ellerman <mpe@ellerman.id.au>
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Mathieu Malaterre <malat@debian.org>
Tested-by: Michael Ellerman <mpe@ellerman.id.au>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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APC virtual machines arent used on POWER-9 chips and are already
disabled in on-chip CAPP. They also need to be disabled on the PSL via
'PSL Data Send Control Register' by setting bit(47). This forces the
PSL to send commands to CAPP with queue.id == 0.
Fixes: 5632874311db ("cxl: Add support for POWER9 DD2")
Cc: stable@vger.kernel.org # v4.15+
Signed-off-by: Vaibhav Jain <vaibhav@linux.vnet.ibm.com>
Acked-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Reviewed-by: Alastair D'Silva <alastair@d-silva.org>
Reviewed-by: Christophe Lombard <clombard@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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Currently we see a kernel-oops reported on Power-9 while attaching a
context to an AFU, with radix-mode and sysfs attr 'prefault_mode' set
to anything other than 'none'. The backtrace of the oops is of this
form:
Unable to handle kernel paging request for data at address 0x00000080
Faulting instruction address: 0xc00800000bcf3b20
cpu 0x1: Vector: 300 (Data Access) at [c00000037f003800]
pc: c00800000bcf3b20: cxl_load_segment+0x178/0x290 [cxl]
lr: c00800000bcf39f0: cxl_load_segment+0x48/0x290 [cxl]
sp: c00000037f003a80
msr: 9000000000009033
dar: 80
dsisr: 40000000
current = 0xc00000037f280000
paca = 0xc0000003ffffe600 softe: 3 irq_happened: 0x01
pid = 3529, comm = afp_no_int
<snip>
cxl_prefault+0xfc/0x248 [cxl]
process_element_entry_psl9+0xd8/0x1a0 [cxl]
cxl_attach_dedicated_process_psl9+0x44/0x130 [cxl]
native_attach_process+0xc0/0x130 [cxl]
afu_ioctl+0x3f4/0x5e0 [cxl]
do_vfs_ioctl+0xdc/0x890
ksys_ioctl+0x68/0xf0
sys_ioctl+0x40/0xa0
system_call+0x58/0x6c
The issue is caused as on Power-8 the AFU attr 'prefault_mode' was
used to improve initial storage fault performance by prefaulting
process segments. However on Power-9 with radix mode we don't have
Storage-Segments that we can prefault. Also prefaulting process Pages
will be too costly and fine-grained.
Hence, since the prefaulting mechanism doesn't makes sense of
radix-mode, this patch updates prefault_mode_store() to not allow any
other value apart from CXL_PREFAULT_NONE when radix mode is enabled.
Fixes: f24be42aab37 ("cxl: Add psl9 specific code")
Cc: stable@vger.kernel.org # v4.12+
Signed-off-by: Vaibhav Jain <vaibhav@linux.ibm.com>
Acked-by: Frederic Barrat <fbarrat@linux.vnet.ibm.com>
Acked-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
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sound/pci/hda/local.h seems to be an earlier version of
sound/hda/local.h; it was added at the same time but doesn't seem to
have ever been used (within the git history). Most of its macros
depend on a hdac_read_parm() function which is not defined anywhere.
Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
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As the mvpp2 driver is growing, move this driver to a dedicated
directory and split it into several files.
Since this driver has a lot of register defines and structure
definitions, it can benefit from having all of this into a dedicated
header file, named mvpp2.h.
A good chunk of the mvpp2 code is dedicated to Header Parser handling, so
we introduce mvpp2_prs.h where all Header Parser definitions are located,
and mvpp2_prs.c containing the related code.
In the same way, mvpp2_cls.h and mvpp2_cls.c are created to contain
Classifier and RSS related code.
The former 'mvpp2.c' file is renamed 'mvpp2_main.c' so that we can keep
the driver binary named 'mvpp2'.
This commit is only about spliting the driver into multiple files and
doesn't introduce any new function, feature or fix besides removing
'static' keywords when needed.
Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Tested-by: Antoine Tenart <antoine.tenart@bootlin.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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All callers of zap_vma_ptes() are not interested in the return value of
that function, so let's simplify its interface and drop the return
value.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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There is no need to check return value of zap_vma_ptes()
because there is nothing to do with this knowledge.
Signed-off-by: Doug Ledford <dledford@redhat.com>
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The failure reported by zap_vma_ptes() means that wrong VMA pages
were supplied, however it is impossible for this type of address.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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There is no need to check return value of zap_vma_ptes()
because there is nothing to do with this knowledge.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Let's perform checks in-place instead of BUG_ONs.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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There is no need to check existence of mad_queue, because we already did
pointer dereference before call to dequeue_mad().
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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There is no need to bring down the whole machine, just because unknown
event was received. It is better to ignore it silently.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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In case CM work list is empty, the work pointer will be NULL,
so instead of kernel crash it is better to abort processing
of works.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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cxgb3 driver properly handles errors returned by IDR, so there is no
need to have special case (kernel crash) just because IDR is full.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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There is no need to crash the machine if unknown work request was
received in SQP MAD.
Cc: <stable@vger.kernel.org> # 3.6
Fixes: 37bfc7c1e83f ("IB/mlx4: SR-IOV multiplex and demultiplex MADs")
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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Any steering QP is supposed be above steering_qp_base,
see function mlx4_ib_steer_qp_alloc() for it, however in case
of misalignment between SW and FW, this qp_base can be wrong.
Use WARN() to catch such situation without killing the machine.
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
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This patch adds support for the BCM5389 switch connected through MDIO.
Signed-off-by: Damien Thébault <damien.thebault@vitec.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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tc_ctl_tfilter handles three netlink message types: RTM_NEWTFILTER,
RTM_DELTFILTER, RTM_GETTFILTER. However, implementation of this function
involves a lot of branching on specific message type because most of the
code is message-specific. This significantly complicates adding new
functionality and doesn't provide much benefit of code reuse.
Split tc_ctl_tfilter to three standalone functions that handle filter new,
delete and get requests.
The only truly protocol independent part of tc_ctl_tfilter is code that
looks up queue, class, and block. Refactor this code to standalone
tcf_block_find function that is used by all three new handlers.
Signed-off-by: Vlad Buslov <vladbu@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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pblk allocates line bitmaps within the line lock unnecessarily. In order
to take pressure out of the fast patch, allocate line bitmaps outside
of this lock and refactor accordingly.
Signed-off-by: Javier González <javier@cnexlabs.com>
Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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Unless we kick the writer directly when setting a new flush point, the
user risks having to wait for up to one second (the default timeout for
the write thread to be kicked) for the IO to complete.
Signed-off-by: Hans Holmberg <hans.holmberg@cnexlabs.com>
Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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When switching between different lun configurations, there is no
guarantee that all lines that contain closed/open chunks have some
valid data to recover.
Check that the smeta chunk has been written to instead. Also
skip bad lines (that does not have enough good chunks).
Signed-off-by: Hans Holmberg <hans.holmberg@cnexlabs.com>
Signed-off-by: Matias Bjørling <mb@lightnvm.io>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
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