20 Sep, 2018
1 commit
-
[ Upstream commit 576d5290d678a651b9f36050fc1717e0573aca13 ]
Add missing in_8() accessors to init_pmu() and pmu_sr_intr().
This fixes several sparse warnings:
drivers/macintosh/via-pmu.c:536:29: warning: dereference of noderef expression
drivers/macintosh/via-pmu.c:537:33: warning: dereference of noderef expression
drivers/macintosh/via-pmu.c:1455:17: warning: dereference of noderef expression
drivers/macintosh/via-pmu.c:1456:69: warning: dereference of noderef expressionTested-by: Stan Johnson
Signed-off-by: Finn Thain
Reviewed-by: Geert Uytterhoeven
Signed-off-by: Michael Ellerman
Signed-off-by: Sasha Levin
Signed-off-by: Greg Kroah-Hartman
30 May, 2018
1 commit
-
[ Upstream commit e283655b5abe26462d53d5196f186c5e8863af3b ]
We should zero an array using sizeof instead of number of elements.
Fixes the following compiler (GCC 7.3.0) warnings:
drivers/macintosh/rack-meter.c: In function 'rackmeter_do_pause':
drivers/macintosh/rack-meter.c:157:2: warning: 'memset' used with length equal to number of elements without multiplication by element size [-Wmemset-elt-size]
drivers/macintosh/rack-meter.c:158:2: warning: 'memset' used with length equal to number of elements without multiplication by element size [-Wmemset-elt-size]Fixes: 4f7bef7a9f69 ("drivers: macintosh: rack-meter: fix bogus memsets")
Reported-by: Stephen Rothwell
Signed-off-by: Aaro Koskinen
Signed-off-by: Michael Ellerman
Signed-off-by: Sasha Levin
Signed-off-by: Greg Kroah-Hartman
02 Nov, 2017
1 commit
-
Many source files in the tree are missing licensing information, which
makes it harder for compliance tools to determine the correct license.By default all files without license information are under the default
license of the kernel, which is GPL version 2.Update the files which contain no license information with the 'GPL-2.0'
SPDX license identifier. The SPDX identifier is a legally binding
shorthand, which can be used instead of the full boiler plate text.This patch is based on work done by Thomas Gleixner and Kate Stewart and
Philippe Ombredanne.How this work was done:
Patches were generated and checked against linux-4.14-rc6 for a subset of
the use cases:
- file had no licensing information it it.
- file was a */uapi/* one with no licensing information in it,
- file was a */uapi/* one with existing licensing information,Further patches will be generated in subsequent months to fix up cases
where non-standard license headers were used, and references to license
had to be inferred by heuristics based on keywords.The analysis to determine which SPDX License Identifier to be applied to
a file was done in a spreadsheet of side by side results from of the
output of two independent scanners (ScanCode & Windriver) producing SPDX
tag:value files created by Philippe Ombredanne. Philippe prepared the
base worksheet, and did an initial spot review of a few 1000 files.The 4.13 kernel was the starting point of the analysis with 60,537 files
assessed. Kate Stewart did a file by file comparison of the scanner
results in the spreadsheet to determine which SPDX license identifier(s)
to be applied to the file. She confirmed any determination that was not
immediately clear with lawyers working with the Linux Foundation.Criteria used to select files for SPDX license identifier tagging was:
- Files considered eligible had to be source code files.
- Make and config files were included as candidates if they contained >5
lines of source
- File already had some variant of a license header in it (even if
Reviewed-by: Philippe Ombredanne
Reviewed-by: Thomas Gleixner
Signed-off-by: Greg Kroah-Hartman
01 Sep, 2017
2 commits
-
The wf_sensor_ops structures are only stored in the ops field of a
wf_sensor structure, which is declared as const. Thus the
wf_sensor_ops structures themselves can be const.Done with the help of Coccinelle.
//
@r disable optional_qualifier@
identifier i;
position p;
@@
static struct wf_sensor_ops i@p = { ... };@ok1@
identifier r.i;
struct wf_sensor s;
position p;
@@
s.ops = &i@p@ok2@
identifier r.i;
struct wf_sat_sensor s;
position p;
@@
s.sens.ops = &i@p@bad@
position p != {r.p,ok1.p,ok2.p};
identifier r.i;
struct wf_sensor_ops e;
@@
e@i@p@depends on !bad disable optional_qualifier@
identifier r.i;
@@
static
+const
struct wf_sensor_ops i = { ... };
//Signed-off-by: Julia Lawall
Signed-off-by: Michael Ellerman -
Now that we have a custom printf format specifier, convert users of
full_name to use %pOF instead. This is preparation to remove storing
of the full path string for each node.Signed-off-by: Rob Herring
[mpe: Also convert the two cases inside #if 0]
Signed-off-by: Michael Ellerman
21 Aug, 2017
1 commit
-
of_device_ids are not supposed to change at runtime. All functions
working with of_device_ids provided by work with const
of_device_ids. So mark the non-const structs as const.File size before:
text data bss dec hex filename
407 576 0 983 3d7 drivers/macintosh/rack-meter.oFile size after constify rackmeter_match.
text data bss dec hex filename
807 176 0 983 3d7 drivers/macintosh/rack-meter.oSigned-off-by: Arvind Yadav
Signed-off-by: Michael Ellerman
14 Aug, 2017
1 commit
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Make wf_control_ops const as they are only stored in the ops field of a
wf_control structure, which is const.
Make wf_pid_param const as they are only used during a copy operation.
Done using Coccinelle.Signed-off-by: Bhumika Goyal
Signed-off-by: Michael Ellerman
06 Jul, 2017
1 commit
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Pull misc user access cleanups from Al Viro:
"The first pile is assorted getting rid of cargo-culted access_ok(),
cargo-culted set_fs() and field-by-field copyouts.The same description applies to a lot of stuff in other branches -
this is just the stuff that didn't fit into a more specific topical
branch"* 'work.misc-set_fs' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
Switch flock copyin/copyout primitives to copy_{from,to}_user()
fs/fcntl: return -ESRCH in f_setown when pid/pgid can't be found
fs/fcntl: f_setown, avoid undefined behaviour
fs/fcntl: f_setown, allow returning error
lpfc debugfs: get rid of pointless access_ok()
adb: get rid of pointless access_ok()
isdn: get rid of pointless access_ok()
compat statfs: switch to copy_to_user()
fs/locks: don't mess with the address limit in compat_fcntl64
nfsd_readlink(): switch to vfs_get_link()
drbd: ->sendpage() never needed set_fs()
fs/locks: pass kernel struct flock to fcntl_getlk/setlk
fs: locks: Fix some troubles at kernel-doc comments
09 Jun, 2017
1 commit
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The dev_attrs field has long been "depreciated" and is finally being
removed, so move the driver to use the "correct" dev_groups field
instead for struct bus_type.Cc: Benjamin Herrenschmidt
Cc:
Signed-off-by: Greg Kroah-Hartman
05 Jun, 2017
1 commit
-
Signed-off-by: Al Viro
06 May, 2017
1 commit
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Pull DeviceTree updates from Rob Herring:
- fix sparse warnings in drivers/of/
- add more overlay unittests
- update dtc to v1.4.4-8-g756ffc4f52f6. This adds more checks on dts
files such as unit-address formatting and stricter character sets for
node and property names- add a common DT modalias function
- move trivial-devices.txt up and out of i2c dir
- ARM NVIC interrupt controller binding
- vendor prefixes for Sensirion, Dioo, Nordic, ROHM
- correct some binding file locations
* tag 'devicetree-for-4.12' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (24 commits)
of: fix sparse warnings in fdt, irq, reserved mem, and resolver code
of: fix sparse warning in of_pci_range_parser_one
of: fix sparse warnings in of_find_next_cache_node
of/unittest: Missing unlocks on error
of: fix uninitialized variable warning for overlay test
of: fix unittest build without CONFIG_OF_OVERLAY
of: Add unit tests for applying overlays
of: per-file dtc compiler flags
fpga: region: add missing DT documentation for config complete timeout
of: Add vendor prefix for ROHM Semiconductor
of: fix "/cpus" reference leak in of_numa_parse_cpu_nodes()
of: Add vendor prefix for Nordic Semiconductor
dt-bindings: arm,nvic: Binding for ARM NVIC interrupt controller on Cortex-M
dtc: update warning settings for new bus and node/property name checks
scripts/dtc: Update to upstream version v1.4.4-8-g756ffc4f52f6
scripts/dtc: automate getting dtc version and log in update script
of: Add function for generating a DT modalias with a newline
of: fix of_device_get_modalias returned length when truncating buffers
Documentation: devicetree: move trivial-devices out of I2C realm
dt-bindings: add vendor prefix for Dioo
..
24 Mar, 2017
1 commit
-
My email address may be found in the git commit logs and in MAINTAINERS.
Remove duplicate addresses so they won't have to be kept up-to-date.Signed-off-by: Finn Thain
Signed-off-by: Jiri Kosina
23 Mar, 2017
1 commit
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The modalias sysfs attr is lacking a newline for DT aliases on platform
devices. The macio and ibmebus correctly add the newline, but open code it.
Introduce a new function, of_device_modalias(), that fills the buffer with
the modalias including the newline and update users of the old
of_device_get_modalias function.Signed-off-by: Rob Herring
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
Cc: Michael Ellerman
Cc: Frank Rowand
Cc: linuxppc-dev@lists.ozlabs.org
Acked-by: Greg Kroah-Hartman
10 Mar, 2017
1 commit
-
Commit 5657933dbb6e ("treewide: Move dma_ops from struct dev_archdata
into struct device") introduced a crash for macio devices, an example
backtrace being:kernel BUG at ./include/linux/dma-mapping.h:465!
Oops: Exception in kernel mode, sig: 5 [#1]
...
NIP [c031ddb0] dmam_alloc_coherent+0x74/0x140
LR [c031de70] dmam_alloc_coherent+0x134/0x140
Call Trace:
dmam_alloc_coherent+0x134/0x140 (unreliable)
pata_macio_port_start+0x3c/0x8c
ata_host_start.part.5+0xfc/0x208
ata_host_activate+0x128/0x154
pata_macio_common_init+0x2f0/0x538
pata_macio_attach+0xd8/0x180
macio_device_probe+0x5c/0xec
driver_probe_device+0x21c/0x314
__driver_attach+0xcc/0xd0
bus_for_each_dev+0x68/0xb4
bus_add_driver+0x1dc/0x244
driver_register+0x88/0x130
pata_macio_init+0x5c/0x88
do_one_initcall+0x40/0x170
kernel_init_freeable+0x134/0x1d0
kernel_init+0x18/0x110
ret_from_kernel_thread+0x5c/0x64This was caused by the device having NULL dma_ops, triggering the
BUG_ON(). Previously the device inherited its dma_ops via the assignment
to dev->ofdev.dev.archdata. However after commit 5657933dbb6e the
dma_ops are moved into dev->ofdev.dev, and so they need to be explicitly
copied.Fixes: 5657933dbb6e ("treewide: Move dma_ops from struct dev_archdata into struct device")
Signed-off-by: Larry Finger
Suggested-by: Benjamin Herrenschmidt
[mpe: Rewrite change log, add backtrace]
Signed-off-by: Michael Ellerman
02 Mar, 2017
1 commit
-
…hed.h> into <linux/sched/signal.h>
Fix up affected files that include this signal functionality via sched.h.
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
23 Feb, 2017
2 commits
-
Pull driver core updates from Greg KH:
"Here is the "small" driver core patches for 4.11-rc1.Not much here, some firmware documentation and self-test updates, a
debugfs code formatting issue, and a new feature for call_usermodehelper
to make it more robust on systems that want to lock it down in a more
secure way.All of these have been linux-next for a while now with no reported
issues"* tag 'driver-core-4.11-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
kernfs: handle null pointers while printing node name and path
Introduce STATIC_USERMODEHELPER to mediate call_usermodehelper()
Make static usermode helper binaries constant
kmod: make usermodehelper path a const string
firmware: revamp firmware documentation
selftests: firmware: send expected errors to /dev/null
selftests: firmware: only modprobe if driver is missing
platform: Print the resource range if device failed to claim
kref: prefer atomic_inc_not_zero to atomic_add_unless
debugfs: improve formatting of debugfs_real_fops() -
Pull powerpc updates from Michael Ellerman:
"Highlights include:- Support for direct mapped LPC on POWER9, giving Linux direct access
to devices that may be on there such as a UART.- Memory hotplug support for the Power9 Radix MMU.
- Add new AUX vectors describing the processor's cache geometry, to
be used by glibc.- The ability for a guest to ask the hypervisor to resize the guest's
hash table, and in addition support for doing so automatically when
memory is hotplugged into/out-of the guest. This allows the hash
table to be sized based on the current memory usage of the guest,
rather than the maximum possible memory usage.- Implementation of optprobes (kprobe optimisation) for powerpc.
In addition there's the topic branch shared with the KVM tree, which
includes support for guests to use the Radix MMU on Power9.Thanks to:
Alistair Popple, Andrew Donnellan, Aneesh Kumar K.V, Anju T, Anton
Blanchard, Benjamin Herrenschmidt, Chris Packham, Daniel Axtens,
Daniel Borkmann, David Gibson, Finn Thain, Gautham R. Shenoy, Gavin
Shan, Greg Kurz, Joel Stanley, John Allen, Madhavan Srinivasan,
Mahesh Salgaonkar, Markus Elfring, Michael Neuling, Nathan Fontenot,
Naveen N. Rao, Nicholas Piggin, Paul Mackerras, Ravi Bangoria, Reza
Arbab, Shailendra Singh, Vaibhav Jain, Wei Yongjun"* tag 'powerpc-4.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (129 commits)
powerpc/mm/radix: Skip ptesync in pte update helpers
powerpc/mm/radix: Use ptep_get_and_clear_full when clearing pte for full mm
powerpc/mm/radix: Update pte update sequence for pte clear case
powerpc/mm: Update PROTFAULT handling in the page fault path
powerpc/xmon: Fix data-breakpoint
powerpc/mm: Fix build break with BOOK3S_64=n and MEMORY_HOTPLUG=y
powerpc/mm: Fix build break when CMA=n && SPAPR_TCE_IOMMU=y
powerpc/mm: Fix build break with RADIX=y & HUGETLBFS=n
powerpc/pseries: Fix typo in parameter description
powerpc/kprobes: Remove kprobe_exceptions_notify()
kprobes: Introduce weak variant of kprobe_exceptions_notify()
powerpc/ftrace: Fix confusing help text for DISABLE_MPROFILE_KERNEL
powerpc/powernv: Fix opal_exit tracepoint opcode
powerpc: Add a prototype for mcount() so it can be versioned
powerpc: Drop GPL from of_node_to_nid() export to match other arches
powerpc/kprobes: Optimize kprobe in kretprobe_trampoline()
powerpc/kprobes: Implement Optprobes
powerpc/kprobes: Fixes for kprobe_lookup_name() on BE
powerpc: Add helper to check if offset is within relative branch range
powerpc/bpf: Introduce __PPC_SH64()
...
07 Feb, 2017
10 commits
-
Change the device probe test in the via-cuda.c driver so it will load on
Egret-based machines too. Remove the now redundant via-maciisi.c driver.Tested-by: Stan Johnson
Signed-off-by: Finn Thain
Acked-by: Geert Uytterhoeven
Signed-off-by: Michael Ellerman -
The Egret system controller was the predecessor to the Cuda and the
differences are minor.On Cuda, byte acknowledgement requires one transition of the TACK
signal; on Egret two are needed. On Cuda, TIP is active low; on Egret
it is active high. And Cuda raises certain interrupts that Egret omits.Accomodating these differences complicates the Cuda driver slightly
but avoids a lot of duplication (see next patch).Tested-by: Stan Johnson
Signed-off-by: Finn Thain
Signed-off-by: Michael Ellerman -
Initialize data_index where appropriate to improve readability and
assist debugging. This change doesn't affect driver behaviour.I prefer to see
current_req->data[data_index++]
in place of
current_req->data[0]
or
current_req->data[1]
inasmuchas it becomes obvious what the data_index variable does.Moreover, the actual value of data_index when examined at any given moment
tells me something about prior events, which did prove helpful.Tested-by: Stan Johnson
Signed-off-by: Finn Thain
Signed-off-by: Michael Ellerman -
The cuda_start() function uses spinlock_irq_save/restore for mutual
exclusion. Let's have cuda_poll() do the same when polling the VIA
interrupt.The benefit to disabling local irqs when the interrupt is being polled
is that the interrupt handler now has the same timing properties
regardless of whether it is invoked normally or from cuda_poll().This driver was written back when local irqs remained enabled during
execution of interrupt handlers and cuda_poll() was probably trying
to achieve the same effect by use of enable/disable_irq.Tested-by: Stan Johnson
Signed-off-by: Finn Thain
Signed-off-by: Michael Ellerman -
When a read transaction completes, one of several things will happen:
a new transfer is started by the driver, a new transfer request
is raised by the Cuda (i.e. TREQ asserted), or both happen at once.When both happen at once, there is a race condition between the TREQ test
in the read_done state and the same test in cuda_start(). Moreover, the
former test uses a stale TREQ value.Theoretically, this can result in the undesirable outcome that the
interrupt handler completes with the state machine 'idle' when it should
instead start the next transaction.Avoid this race by calling cuda_start() first and then confirming that it
succeeded. If not, test the current TREQ value before entering the
'reading' state.Tested-by: Stan Johnson
Signed-off-by: Finn Thain
Signed-off-by: Michael Ellerman -
When reading_reply is set, reply_ptr points into an adb_request struct.
Conversely, when reply_ptr instead points into the global cuda_rbuf,
reading_reply must be false.Unfortunately, this rule can be violated because re-initialization
of reply_ptr and reading_reply presently depends on the TREQ input.Fix this by re-initializing reply_ptr and reading_reply as soon as they
are known to be invalid.Tested-by: Stan Johnson
Signed-off-by: Finn Thain
Signed-off-by: Michael Ellerman -
If the Cuda driver does not enter the 'read_done' state for some
reason, it may continue in the 'reading' state until the buffer
overflows. Add a bounds check to prevent this.Tested-by: Stan Johnson
Signed-off-by: Finn Thain
Signed-off-by: Michael Ellerman -
Introduce some helpers for handling the signalling between VIA and
Cuda. This abstraction will be used to add support for Egret devices,
which utilize slightly different signalling.Don't invert the sense of the Cuda's active-low signals when storing
them in the 'status' variable. Just assert, negate and test those
signals using the helpers.The state machine does not need to test its own output signals to
figure out what to do next: the next state depends on the Cuda's TREQ
output. Just call the TREQ_asserted() helper function to test for that.Similarly, there is no need to store pin directions in the 'status'
variable. That was only useful for debugging messages.Tested-by: Stan Johnson
Signed-off-by: Finn Thain
Signed-off-by: Michael Ellerman -
There is no possibility that current_req can change during execution of
cuda_start(). This can be confirmed by inspection: cuda_lock is always
held whenever cuda_start() is called or current_req is modified.Tested-by: Stan Johnson
Signed-off-by: Finn Thain
Signed-off-by: Michael Ellerman -
Add missing log message severity, remove old debug messages and
replace printk() loop with print_hex_dump() call.Tested-by: Stan Johnson
Signed-off-by: Finn Thain
Signed-off-by: Michael Ellerman
01 Feb, 2017
2 commits
-
cputime_t is going to be removed and replaced by nsecs units,
so convert the drivers/macintosh/rack-meter.c use to u64..Signed-off-by: Frederic Weisbecker
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
Cc: Michael Ellerman
Cc: Heiko Carstens
Cc: Martin Schwidefsky
Cc: Tony Luck
Cc: Fenghua Yu
Cc: Peter Zijlstra
Cc: Rik van Riel
Cc: Stanislaw Gruszka
Cc: Wanpeng Li
Link: http://lkml.kernel.org/r/1485832191-26889-5-git-send-email-fweisbec@gmail.com
Signed-off-by: Ingo Molnar -
Kernel CPU stats are stored in cputime_t which is an architecture
defined type, and hence a bit opaque and requiring accessors and mutators
for any operation.Converting them to nsecs simplifies the code and is one step toward
the removal of cputime_t in the core code.Signed-off-by: Frederic Weisbecker
Cc: Benjamin Herrenschmidt
Cc: Paul Mackerras
Cc: Michael Ellerman
Cc: Heiko Carstens
Cc: Martin Schwidefsky
Cc: Tony Luck
Cc: Fenghua Yu
Cc: Peter Zijlstra
Cc: Rik van Riel
Cc: Stanislaw Gruszka
Cc: Wanpeng Li
Link: http://lkml.kernel.org/r/1485832191-26889-4-git-send-email-fweisbec@gmail.com
Signed-off-by: Ingo Molnar
19 Jan, 2017
1 commit
-
There are a number of usermode helper binaries that are "hard coded" in
the kernel today, so mark them as "const" to make it harder for someone
to change where the variables point to.Cc: Benjamin Herrenschmidt
Cc: Thomas Sailer
Cc: "Rafael J. Wysocki"
Cc: Johan Hovold
Cc: Alex Elder
Cc: "J. Bruce Fields"
Cc: Jeff Layton
Cc: David Howells
Signed-off-by: Greg Kroah-Hartman
25 Dec, 2016
1 commit
-
This was entirely automated, using the script by Al:
PATT='^[[:blank:]]*#[[:blank:]]*include[[:blank:]]*'
sed -i -e "s!$PATT!#include !" \
$(git grep -l "$PATT"|grep -v ^include/linux/uaccess.h)to do the replacement at the end of the merge window.
Requested-by: Al Viro
Signed-off-by: Linus Torvalds
14 Nov, 2016
1 commit
-
We can use the front led of powerbooks/ibooks to visualize disk activity
without the deprecated IDE_GD_ATA.Signed-off-by: Elimar Riesebieter
Signed-off-by: Michael Ellerman
20 Sep, 2016
1 commit
-
NO_IRQ has been == 0 on powerpc for just over ten years (since commit
0ebfff1491ef ("[POWERPC] Add new interrupt mapping core and change
platforms to use it")). It's also 0 on most other arches.Although it's fairly harmless, every now and then it causes confusion
when a driver is built on powerpc and another arch which doesn't define
NO_IRQ. There's at least 6 definitions of NO_IRQ in drivers/, at least
some of which are to work around that problem.So we'd like to remove it. This is fairly trivial in the arch code, we
just convert:if (irq == NO_IRQ) to if (!irq)
if (irq != NO_IRQ) to if (irq)
irq = NO_IRQ; to irq = 0;
return NO_IRQ; to return 0;And a few other odd cases as well.
At least for now we keep the #define NO_IRQ, because there is driver
code that uses NO_IRQ and the fixes to remove those will go via other
trees.Note we also change some occurrences in PPC sound drivers, drivers/ps3,
and drivers/macintosh.Signed-off-by: Michael Ellerman
22 Aug, 2016
1 commit
-
The field "owner" is set by core. Thus delete an extra initialisation.
Generated by: scripts/coccinelle/api/platform_no_drv_owner.cocci
Signed-off-by: Markus Elfring
Signed-off-by: Benjamin Herrenschmidt
31 Jul, 2016
1 commit
-
Pull powerpc updates from Michael Ellerman:
"Highlights:
- PowerNV PCI hotplug support.
- Lots more Power9 support.
- eBPF JIT support on ppc64le.
- Lots of cxl updates.
- Boot code consolidation.Bug fixes:
- Fix spin_unlock_wait() from Boqun Feng
- Fix stack pointer corruption in __tm_recheckpoint() from Michael
Neuling
- Fix multiple bugs in memory_hotplug_max() from Bharata B Rao
- mm: Ensure "special" zones are empty from Oliver O'Halloran
- ftrace: Separate the heuristics for checking call sites from
Michael Ellerman
- modules: Never restore r2 for a mprofile-kernel style mcount() call
from Michael Ellerman
- Fix endianness when reading TCEs from Alexey Kardashevskiy
- start rtasd before PCI probing from Greg Kurz
- PCI: rpaphp: Fix slot registration for multiple slots under a PHB
from Tyrel Datwyler
- powerpc/mm: Add memory barrier in __hugepte_alloc() from Sukadev
BhattiproluCleanups & fixes:
- Drop support for MPIC in pseries from Rashmica Gupta
- Define and use PPC64_ELF_ABI_v2/v1 from Michael Ellerman
- Remove unused symbols in asm-offsets.c from Rashmica Gupta
- Fix SRIOV not building without EEH enabled from Russell Currey
- Remove kretprobe_trampoline_holder from Thiago Jung Bauermann
- Reduce log level of PCI I/O space warning from Benjamin
Herrenschmidt
- Add array bounds checking to crash_shutdown_handlers from Suraj
Jitindar Singh
- Avoid -maltivec when using clang integrated assembler from Anton
Blanchard
- Fix array overrun in ppc_rtas() syscall from Andrew Donnellan
- Fix error return value in cmm_mem_going_offline() from Rasmus
Villemoes
- export cpu_to_core_id() from Mauricio Faria de Oliveira
- Remove old symbols from defconfigs from Andrew Donnellan
- Update obsolete comments in setup_32.c about entry conditions from
Benjamin Herrenschmidt
- Add comment explaining the purpose of setup_kdump_trampoline() from
Benjamin Herrenschmidt
- Merge the RELOCATABLE config entries for ppc32 and ppc64 from Kevin
Hao
- Remove RELOCATABLE_PPC32 from Kevin Hao
- Fix .long's in tlb-radix.c to more meaningful from Balbir SinghMinor cleanups & fixes:
- Andrew Donnellan, Anna-Maria Gleixner, Anton Blanchard, Benjamin
Herrenschmidt, Bharata B Rao, Christophe Leroy, Colin Ian King,
Geliang Tang, Greg Kurz, Madhavan Srinivasan, Michael Ellerman,
Michael Ellerman, Stephen Rothwell, Stewart Smith.Freescale updates from Scott:
- "Highlights include more 8xx optimizations, device tree updates,
and MVME7100 support."PowerNV PCI hotplug from Gavin Shan:
- PCI: Add pcibios_setup_bridge()
- Override pcibios_setup_bridge()
- Remove PCI_RESET_DELAY_US
- Move pnv_pci_ioda_setup_opal_tce_kill() around
- Increase PE# capacity
- Allocate PE# in reverse order
- Create PEs in pcibios_setup_bridge()
- Setup PE for root bus
- Extend PCI bridge resources
- Make pnv_ioda_deconfigure_pe() visible
- Dynamically release PE
- Update bridge windows on PCI plug
- Delay populating pdn
- Support PCI slot ID
- Use PCI slot reset infrastructure
- Introduce pnv_pci_get_slot_id()
- Functions to get/set PCI slot state
- PCI/hotplug: PowerPC PowerNV PCI hotplug driver
- Print correct PHB type namesPower9 idle support from Shreyas B. Prabhu:
- set power_save func after the idle states are initialized
- Use PNV_THREAD_WINKLE macro while requesting for winkle
- make hypervisor state restore a function
- Rename idle_power7.S to idle_book3s.S
- Rename reusable idle functions to hardware agnostic names
- Make pnv_powersave_common more generic
- abstraction for saving SPRs before entering deep idle states
- Add platform support for stop instruction
- cpuidle/powernv: Use CPUIDLE_STATE_MAX instead of MAX_POWERNV_IDLE_STATES
- cpuidle/powernv: cleanup cpuidle-powernv.c
- cpuidle/powernv: Add support for POWER ISA v3 idle states
- Use deepest stop state when cpu is offlinedPower9 PMU from Madhavan Srinivasan:
- factor out power8 pmu macros and defines
- factor out power8 pmu functions
- factor out power8 __init_pmu code
- Add power9 event list macros for generic and cache events
- Power9 PMU support
- Export Power9 generic and cache events to sysfsPower9 preliminary interrupt & PCI support from Benjamin Herrenschmidt:
- Add XICS emulation APIs
- Move a few exception common handlers to make room
- Add support for HV virtualization interrupts
- Add mechanism to force a replay of interrupts
- Add ICP OPAL backend
- Discover IODA3 PHBs
- pci: Remove obsolete SW invalidate
- opal: Add real mode call wrappers
- Rename TCE invalidation calls
- Remove SWINV constants and obsolete TCE code
- Rework accessing the TCE invalidate register
- Fallback to OPAL for TCE invalidations
- Use the device-tree to get available range of M64's
- Check status of a PHB before using it
- pci: Don't try to allocate resources that will be reassignedOther Power9:
- Send SIGBUS on unaligned copy and paste from Chris Smart
- Large Decrementer support from Oliver O'Halloran
- Load Monitor Register Support from Jack MillerPerformance improvements from Anton Blanchard:
- Avoid load hit store in __giveup_fpu() and __giveup_altivec()
- Avoid load hit store in setup_sigcontext()
- Remove assembly versions of strcpy, strcat, strlen and strcmp
- Align hot loops of some string functionseBPF JIT from Naveen N. Rao:
- Fix/enhance 32-bit Load Immediate implementation
- Optimize 64-bit Immediate loads
- Introduce rotate immediate instructions
- A few cleanups
- Isolate classic BPF JIT specifics into a separate header
- Implement JIT compiler for extended BPFOperator Panel driver from Suraj Jitindar Singh:
- devicetree/bindings: Add binding for operator panel on FSP machines
- Add inline function to get rc from an ASYNC_COMP opal_msg
- Add driver for operator panel on FSP machinesSparse fixes from Daniel Axtens:
- make some things static
- Introduce asm-prototypes.h
- Include headers containing prototypes
- Use #ifdef __BIG_ENDIAN__ #else for REG_BYTE
- kvm: Clarify __user annotations
- Pass endianness to sparse
- Make ppc_md.{halt, restart} __noreturnMM fixes & cleanups from Aneesh Kumar K.V:
- radix: Update LPCR HR bit as per ISA
- use _raw variant of page table accessors
- Compile out radix related functions if RADIX_MMU is disabled
- Clear top 16 bits of va only on older cpus
- Print formation regarding the the MMU mode
- hash: Update SDR1 size encoding as documented in ISA 3.0
- radix: Update PID switch sequence
- radix: Update machine call back to support new HCALL.
- radix: Add LPID based tlb flush helpers
- radix: Add a kernel command line to disable radix
- Cleanup LPCR definesBoot code consolidation from Benjamin Herrenschmidt:
- Move epapr_paravirt_early_init() to early_init_devtree()
- cell: Don't use flat device-tree after boot
- ge_imp3a: Don't use the flat device-tree after boot
- mpc85xx_ds: Don't use the flat device-tree after boot
- mpc85xx_rdb: Don't use the flat device-tree after boot
- Don't test for machine type in rtas_initialize()
- Don't test for machine type in smp_setup_cpu_maps()
- dt: Add of_device_compatible_match()
- Factor do_feature_fixup calls
- Move 64-bit feature fixup earlier
- Move 64-bit memory reserves to setup_arch()
- Use a cachable DART
- Move FW feature probing out of pseries probe()
- Put exception configuration in a common place
- Remove early allocation of the SMU command buffer
- Move MMU backend selection out of platform code
- pasemi: Remove IOBMAP allocation from platform probe()
- mm/hash: Don't use machine_is() early during boot
- Don't test for machine type to detect HEA special case
- pmac: Remove spurrious machine type test
- Move hash table ops to a separate structure
- Ensure that ppc_md is empty before probing for machine type
- Move 64-bit probe_machine() to later in the boot process
- Move 32-bit probe() machine to later in the boot process
- Get rid of ppc_md.init_early()
- Move the boot time info banner to a separate function
- Move setting of {i,d}cache_bsize to initialize_cache_info()
- Move the content of setup_system() to setup_arch()
- Move cache info inits to a separate function
- Re-order the call to smp_setup_cpu_maps()
- Re-order setup_panic()
- Make a few boot functions __init
- Merge 32-bit and 64-bit setup_arch()Other new features:
- tty/hvc: Use IRQF_SHARED for OPAL hvc consoles from Sam Mendoza-Jonas
- tty/hvc: Use opal irqchip interface if available from Sam Mendoza-Jonas
- powerpc: Add module autoloading based on CPU features from Alastair D'Silva
- crypto: vmx - Convert to CPU feature based module autoloading from Alastair D'Silva
- Wake up kopald polling thread before waiting for events from Benjamin Herrenschmidt
- xmon: Dump ISA 2.06 SPRs from Michael Ellerman
- xmon: Dump ISA 2.07 SPRs from Michael Ellerman
- Add a parameter to disable 1TB segs from Oliver O'Halloran
- powerpc/boot: Add OPAL console to epapr wrappers from Oliver O'Halloran
- Assign fixed PHB number based on device-tree properties from Guilherme G. Piccoli
- pseries: Add pseries hotplug workqueue from John Allen
- pseries: Add support for hotplug interrupt source from John Allen
- pseries: Use kernel hotplug queue for PowerVM hotplug events from John Allen
- pseries: Move property cloning into its own routine from Nathan Fontenot
- pseries: Dynamic add entires to associativity lookup array from Nathan Fontenot
- pseries: Auto-online hotplugged memory from Nathan Fontenot
- pseries: Remove call to memblock_add() from Nathan Fontenotcxl:
- Add set and get private data to context struct from Michael Neuling
- make base more explicitly non-modular from Paul Gortmaker
- Use for_each_compatible_node() macro from Wei Yongjun
- Frederic Barrat
- Abstract the differences between the PSL and XSL
- Make vPHB device node match adapter's
- Philippe Bergheaud
- Add mechanism for delivering AFU driver specific events
- Ignore CAPI adapters misplaced in switched slots
- Refine slice error debug messages
- Andrew Donnellan
- static-ify variables to fix sparse warnings
- PCI/hotplug: pnv_php: export symbols and move struct types needed by cxl
- PCI/hotplug: pnv_php: handle OPAL_PCI_SLOT_OFFLINE power state
- Add cxl_check_and_switch_mode() API to switch bi-modal cards
- remove dead Kconfig options
- fix potential NULL dereference in free_adapter()
- Ian Munsie
- Update process element after allocating interrupts
- Add support for CAPP DMA mode
- Fix allowing bogus AFU descriptors with 0 maximum processes
- Fix allocating a minimum of 2 pages for the SPA
- Fix bug where AFU disable operation had no effect
- Workaround XSL bug that does not clear the RA bit after a reset
- Fix NULL pointer dereference on kernel contexts with no AFU interrupts
- powerpc/powernv: Split cxl code out into a separate file
- Add cxl_slot_is_supported API
- Enable bus mastering for devices using CAPP DMA mode
- Move cxl_afu_get / cxl_afu_put to base
- Allow a default context to be associated with an external pci_dev
- Do not create vPHB if there are no AFU configuration records
- powerpc/powernv: Add support for the cxl kernel api on the real phb
- Add support for using the kernel API with a real PHB
- Add kernel APIs to get & set the max irqs per context
- Add preliminary workaround for CX4 interrupt limitation
- Add support for interrupts on the Mellanox CX4
- Workaround PE=0 hardware limitation in Mellanox CX4
- powerpc/powernv: Fix pci-cxl.c build when CONFIG_MODULES=nselftests:
- Test unaligned copy and paste from Chris Smart
- Load Monitor Register Tests from Jack Miller
- Cyril Bur
- exec() with suspended transaction
- Use signed long to read perf_event_paranoid
- Fix usage message in context_switch
- Fix generation of vector instructions/types in context_switch
- Michael Ellerman
- Use "Delta" rather than "Error" in normal output
- Import Anton's mmap & futex micro benchmarks
- Add a test for PROT_SAO"* tag 'powerpc-4.8-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (263 commits)
powerpc/mm: Parenthesise IS_ENABLED() in if condition
tty/hvc: Use opal irqchip interface if available
tty/hvc: Use IRQF_SHARED for OPAL hvc consoles
selftests/powerpc: exec() with suspended transaction
powerpc: Improve comment explaining why we modify VRSAVE
powerpc/mm: Drop unused externs for hpte_init_beat[_v3]()
powerpc/mm: Rename hpte_init_lpar() and move the fallback to a header
powerpc/mm: Fix build break when PPC_NATIVE=n
crypto: vmx - Convert to CPU feature based module autoloading
powerpc: Add module autoloading based on CPU features
powerpc/powernv/ioda: Fix endianness when reading TCEs
powerpc/mm: Add memory barrier in __hugepte_alloc()
powerpc/modules: Never restore r2 for a mprofile-kernel style mcount() call
powerpc/ftrace: Separate the heuristics for checking call sites
powerpc: Merge 32-bit and 64-bit setup_arch()
powerpc/64: Make a few boot functions __init
powerpc: Re-order setup_panic()
powerpc: Re-order the call to smp_setup_cpu_maps()
powerpc/32: Move cache info inits to a separate function
powerpc/64: Move the content of setup_system() to setup_arch()
...
21 Jul, 2016
1 commit
-
The SMU command buffer needs to be allocated below 2G using memblock.
In the past, this had to be done very early from the arch code as
memblock wasn't available past that point. That is no longer the
case though, smu_init() is called from setup_arch() when memblock
is still functional these days. So move the allocation to the
SMU driver itself.Signed-off-by: Benjamin Herrenschmidt
Signed-off-by: Michael Ellerman
27 Jun, 2016
1 commit
-
- dts: rename 'ide-disk' to 'disk-activity'
- defconfig: rename 'ADB_PMU_LED_IDE' to 'ADB_PMU_LED_DISK'Cc: Joseph Jezak
Cc: Jörg Sommer
Signed-off-by: Stephan Linz
Signed-off-by: Jacek Anaszewski
01 May, 2016
1 commit
-
How we switch MMU context differs between hash and radix. For hash we
need to switch the SLB details and for radix we need to switch the PID
SPR.Signed-off-by: Aneesh Kumar K.V
Signed-off-by: Michael Ellerman
12 Apr, 2016
2 commits
-
Fix bogus memsets pointed out by sparse:
linux-v4.3/drivers/macintosh/rack-meter.c:157:15: warning: memset with byte count of 0
linux-v4.3/drivers/macintosh/rack-meter.c:158:15: warning: memset with byte count of 0Probably "&" is mistyped "*"; use ARRAY_SIZE to make it more safe.
Signed-off-by: Aaro Koskinen
Signed-off-by: Michael Ellerman -
Limit idle ticks to total ticks. This prevents the annoying rackmeter
leds fully ON / OFF blinking state that happens on fully idling
G5 Xserve systems.Signed-off-by: Aaro Koskinen
Signed-off-by: Michael Ellerman