Commit graph

916837 commits

Author SHA1 Message Date
Jiri Kosina
4c805fb704 Merge branch 'for-5.7/glorious' into for-linus
- report descriptor fix for Glorious PC Gaming Race device from Samuel Čavoj
2020-04-01 13:32:45 +02:00
Gayatri Kammela
26d8bec1e9 thermal: int340x_thermal: fix: Update Tiger Lake ACPI device IDs
Tiger Lake's new unique ACPI device IDs for Intel thermal driver are not
valid because of missing 'C' in the IDs. Fix the IDs by updating them.

After the update, the new IDs should now look like
INT1040 --> INTC1040
INT1043 --> INTC1043

Fixes: 9b1b5535df ("thermal: int340x_thermal: Add Tiger Lake ACPI device IDs")
Cc: 5.6+ <stable@vger.kernel.org> # 5.6+
Suggested-by: Srinivas Pandruvada <srinivas.pandruvada@intel.com>
Signed-off-by: Gayatri Kammela <gayatri.kammela@intel.com>
Acked-by: Zhang Rui <rui.zhang@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-04-01 13:20:21 +02:00
Gayatri Kammela
d5764dc597 platform/x86: intel-hid: fix: Update Tiger Lake ACPI device ID
Tiger Lake's new unique ACPI device IDs for intel-hid driver is not
valid because of missing 'C' in the ID. Fix the ID by updating it.

After the update, the new ID should now look like
INT1051 --> INTC1051

Fixes: bdd11b6540 ("platform/x86: intel-hid: Add Tiger Lake ACPI device ID")
Suggested-by: Srinivas Pandruvada <srinivas.pandruvada@intel.com>
Signed-off-by: Gayatri Kammela <gayatri.kammela@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-04-01 13:20:21 +02:00
Gayatri Kammela
b62c770fee ACPI: Update Tiger Lake ACPI device IDs
Tiger Lake's new unique ACPI device IDs for DPTF and fan drivers are not
valid as the IDs are missing 'C'. Fix the IDs by updating them.

After the update, the new IDs should now look like
INT1047 --> INTC1047
INT1040 --> INTC1040
INT1043 --> INTC1043
INT1044 --> INTC1044

Fixes: 55cfe6a5c5 ("ACPI: DPTF: Add Tiger Lake ACPI device IDs")
Fixes: c248dfe7e0 ("ACPI: fan: Add Tiger Lake ACPI device ID")
Suggested-by: Srinivas Pandruvada <srinivas.pandruvada@intel.com>
Signed-off-by: Gayatri Kammela <gayatri.kammela@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-04-01 13:20:21 +02:00
Sebastian Andrzej Siewior
73d20564e0 hrtimer: Don't dereference the hrtimer pointer after the callback
A hrtimer can be released in its callback, but lockdep_hrtimer_exit()
dereferences the pointer after the callback returns, i.e. a potential use
after free.

Retrieve the context in which the hrtimer expires before the callback is
invoked and use it in lockdep_hrtimer_exit().

Fixes: 40db173965 ("lockdep: Add hrtimer context tracing bits")
Reported-by: syzbot+62c155c276e580cfb606@syzkaller.appspotmail.com
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Link: https://lkml.kernel.org/r/20200331201849.fkp2siy3vcdqvqlz@linutronix.de
2020-04-01 13:20:14 +02:00
이경택
abca9e4a04
ASoC: topology: use name_prefix for new kcontrol
Current topology doesn't add prefix of component to new kcontrol.

Signed-off-by: Gyeongtaek Lee <gt82.lee@samsung.com>
Link: https://lore.kernel.org/r/009b01d60804$ae25c2d0$0a714870$@samsung.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-04-01 12:06:28 +01:00
YueHaibing
59564e1173
ASoC: rt5682: Fix build error without CONFIG_I2C
If I2C is n but SoundWire is m, building fails:

sound/soc/codecs/rt5682.c:3716:1: warning: data definition has no type or storage class
 module_i2c_driver(rt5682_i2c_driver);
 ^~~~~~~~~~~~~~~~~
sound/soc/codecs/rt5682.c:3716:1: error: type defaults to 'int' in declaration of 'module_i2c_driver' [-Werror=implicit-int]
sound/soc/codecs/rt5682.c:3716:1: warning: parameter names (without types) in function declaration

Guard this use #ifdef CONFIG_I2C.

Fixes: 5549ea6479 ("ASoC: rt5682: fix unmet dependencies")
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20200401091055.34112-1-yuehaibing@huawei.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-04-01 12:06:28 +01:00
이경택
21fca8bdbb
ASoC: dpcm: allow start or stop during pause for backend
soc_compr_trigger_fe() allows start or stop after pause_push.
In dpcm_be_dai_trigger(), however, only pause_release is allowed
command after pause_push.
So, start or stop after pause in compress offload is always
returned as error if the compress offload is used with dpcm.
To fix the problem, SND_SOC_DPCM_STATE_PAUSED should be allowed
for start or stop command.

Signed-off-by: Gyeongtaek Lee <gt82.lee@samsung.com>
Reviewed-by: Vinod Koul <vkoul@kernel.org>
Link: https://lore.kernel.org/r/004d01d607c1$7a3d5250$6eb7f6f0$@samsung.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2020-04-01 12:06:27 +01:00
Chris Packham
fd90d48db0 rtc: ds1307: add support for watchdog timer on ds1388
The DS1388 variant has watchdog timer capabilities. When using a DS1388
and having enabled CONFIG_WATCHDOG_CORE register a watchdog device for
the DS1388.

Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20200330025500.6991-1-chris.packham@alliedtelesis.co.nz
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-04-01 12:33:44 +02:00
Alexandre Belloni
06c4e103bf rtc: da9052: switch to rtc_time64_to_tm/rtc_tm_to_time64
Call the 64bit versions of rtc_tm time conversion.

Acked-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Link: https://lore.kernel.org/r/20200306073548.57579-3-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-04-01 12:33:43 +02:00
Alexandre Belloni
23af616ca4 rtc: da9052: set range
The da9052 is an rtc valid from 2000 to 2063 (max year is 63).

Acked-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Link: https://lore.kernel.org/r/20200306073548.57579-2-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-04-01 12:33:43 +02:00
Alexandre Belloni
d17077e570 rtc: da9052: convert to devm_rtc_allocate_device
This allows further improvement of the driver.

Acked-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Link: https://lore.kernel.org/r/20200329224240.776568-1-alexandre.belloni@bootlin.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
2020-04-01 12:33:34 +02:00
Jiri Kosina
f454d9a378 Merge branch 'for-5.7/core' into for-linus
- device-specific (ITE 8595) fix from Hans de Goede
2020-04-01 12:27:16 +02:00
Jiri Kosina
c9f2897015 Merge branch 'for-5.7/appleir' into for-linus
- small code cleanups in hid-appleir from Lucas Tanure
2020-04-01 12:26:12 +02:00
Jiri Kosina
0aac6f9aaa Merge branch 'for-5.6/upstream-fixes' into for-linus
- probe fix for Logitech-G* devices from Hans de Goede
- error handling imrovement in hid-rmi from Christophe JAILLET
2020-04-01 12:25:37 +02:00
Thomas Gleixner
a67cd1fb66 irqchip fixes for Linux 5.7, take #1
- Partially revert Xilinx changes that break PPC systems
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Merge tag 'irqchip-fixes-5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/core

Pull irqchip fixes from Marc Zygnier:

 - Partially revert Xilinx changes that break PPC systems
2020-04-01 12:00:52 +02:00
Rafael J. Wysocki
b5252a6cbb PM: sleep: core: Drop racy and redundant checks from device_prepare()
Alan Stern points out that the WARN_ON() check in device_prepare()
is racy (because the PM-runtime API can be disabled briefly for any
device at any time and system suspend can start at any time too) and
the pm_runtime_suspended() check in the computation of the
direct_complete flag value is redundant (because it will be
repeated later anyway).

Drop both these checks accordingly.

Reported-by: Alan Stern <stern@rowland.harvard.edu>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-04-01 11:38:49 +02:00
Dexuan Cui
3704a6a445 PM: hibernate: Propagate the return value of hibernation_restore()
If hibernation_restore() fails, the 'error' should not be zero.

Signed-off-by: Dexuan Cui <decui@microsoft.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-04-01 11:36:11 +02:00
Tero Kristo
2d63908bdb watchdog: Add K3 RTI watchdog support
Texas Instruments K3 SoCs contain an RTI (Real Time Interrupt) module
which can be used as a watchdog. This IP provides a support for
windowed watchdog mode, in which the watchdog must be petted within
a certain time window. If it is petted either too soon, or too late,
a watchdog error will be triggered.

Signed-off-by: Tero Kristo <t-kristo@ti.com>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20200312095808.19907-4-t-kristo@ti.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2020-04-01 11:35:23 +02:00
Tero Kristo
936253d7e9 dt-bindings: watchdog: Add support for TI K3 RTI watchdog
TI K3 SoCs contain an RTI (Real Time Interrupt) module which can be
used to implement a windowed watchdog functionality. Windowed watchdog
will generate an error if it is petted outside the time window, either
too early or too late.

Cc: Rob Herring <robh@kernel.org>
Cc: devicetree@vger.kernel.org
Signed-off-by: Tero Kristo <t-kristo@ti.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20200312095808.19907-2-t-kristo@ti.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2020-04-01 11:35:23 +02:00
Lucas Stach
e2ad9bca45 watchdog: ziirave_wdt: change name to be more specific
The RAVE watchdog is not a full system watchdog, but is used to reset
ethernet switch when required. Change the name to better reflect this
usage.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20200313101138.25915-1-l.stach@pengutronix.de
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2020-04-01 11:35:22 +02:00
Chris Packham
bb914088bd watchdog: orion: use 0 for unset heartbeat
If the heartbeat module param is not specified we would get an error
message

  watchdog: f1020300.watchdog: driver supplied timeout (4294967295) out of range
  watchdog: f1020300.watchdog: falling back to default timeout (171)

This is because we were initialising heartbeat to -1. By removing the
initialisation (thus letting the C run time initialise it to 0) we
silence the warning message and the default timeout is still used.

Signed-off-by: Chris Packham <chris.packham@alliedtelesis.co.nz>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20200313031312.1485-1-chris.packham@alliedtelesis.co.nz
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
2020-04-01 11:35:22 +02:00
Hans de Goede
1c8fbc1f9b ACPI: video: Use native backlight on Acer Aspire 5783z
The Acer Aspire 5783z shipped with Windows 7 and as such does not trigger
our "win8 ready" heuristic for prefering the native backlight interface.

Still ACPI backlight control doesn't work on this model, where as the
native (intel_video) backlight interface does work. Add a quirk to
force using native backlight control on this model.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-04-01 11:18:31 +02:00
Randy Dunlap
5fd769c2bf ACPI: video: Docs update for "acpi_backlight" kernel parameter options
Update the Documentation for "acpi_backlight" by adding 2 new
options (native and none).

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-04-01 11:15:55 +02:00
Sagi Grimberg
39d06079a5 nvme-tcp: fix possible crash in recv error flow
If the target misbehaves and sends us unexpected payload we
need to make sure to fail the controller and stop processing
the input stream. We clear the rd_enabled flag and stop
the io_work, but we may still requeue it if we still have pending
sends and then in the next invocation we will process the input
stream as the check is only in the .data_ready upcall.

To fix this we need to make sure not to self-requeue io_work
upon a recv flow error.

This fixes the crash:
 nvme nvme2: receive failed:  -22
 BUG: unable to handle page fault for address: ffffbeb5816c3b48
 nvme_ns_head_make_request: 29 callbacks suppressed
 block nvme0n5: no usable path - requeuing I/O
 block nvme0n5: no usable path - requeuing I/O
 block nvme0n7: no usable path - requeuing I/O
 block nvme0n7: no usable path - requeuing I/O
 block nvme0n3: no usable path - requeuing I/O
 block nvme0n3: no usable path - requeuing I/O
 block nvme0n3: no usable path - requeuing I/O
 block nvme0n7: no usable path - requeuing I/O
 block nvme0n3: no usable path - requeuing I/O
 block nvme0n3: no usable path - requeuing I/O
 #PF: supervisor read access inkernel mode
 #PF: error_code(0x0000) - not-present page
 PGD 1039157067 P4D 1039157067 PUD 103915a067 PMD 102719f067 PTE 0
 Oops: 0000 [#1] SMP PTI
 CPU: 8 PID: 411 Comm: kworker/8:1H Not tainted 5.3.0-40-generic #32~18.04.1-Ubuntu
 Hardware name: Supermicro Super Server/X10SRi-F, BIOS 2.0 12/17/2015
 Workqueue: nvme_tcp_wq nvme_tcp_io_work [nvme_tcp]
 RIP: 0010:nvme_tcp_recv_skb+0x2ae/0xb50 [nvme_tcp]
 RSP: 0018:ffffbeb5806cfd10 EFLAGS: 00010246
 RAX: ffffbeb5816c3b48 RBX: 00000000000003d0 RCX: 0000000000000008
 RDX: 00000000000003d0 RSI: 0000000000000001 RDI: ffff9a3040684b40
 RBP: ffffbeb5806cfd90 R08: 0000000000000000 R09: ffffffff946e6900
 R10: ffffbeb5806cfce0 R11: 0000000000000001 R12: 0000000000000000
 R13: ffff9a2ff86501c0 R14: 00000000000003d0 R15: ffff9a30b85f2798
 FS:  0000000000000000(0000) GS:ffff9a30bf800000(0000) knlGS:0000000000000000
 CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
 CR2: ffffbeb5816c3b48 CR3: 000000088400a006 CR4: 00000000003626e0
 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
 Call Trace:
  tcp_read_sock+0x8c/0x290
  ? __release_sock+0x9d/0xe0
  ? nvme_tcp_write_space+0xb0/0xb0 [nvme_tcp]
  nvme_tcp_io_work+0x4b4/0x830 [nvme_tcp]
  ? finish_task_switch+0x163/0x270
  process_one_work+0x1fd/0x3f0
  worker_thread+0x34/0x410
  kthread+0x121/0x140
  ? process_one_work+0x3f0/0x3f0
  ? kthread_park+0xb0/0xb0
  ret_from_fork+0x35/0x40

Reported-by: Roy Shterman <roys@lightbitslabs.com>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2020-04-01 11:07:13 +02:00
Marc Zyngier
4cea749d56 Revert "irqchip/xilinx: Enable generic irq multi handler"
This reverts commit a0789993bf, which
breaks a number of PPC platforms.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/44b64be7-9240-fd52-af90-e0245220f38b@xilinx.com
2020-04-01 09:12:24 +01:00
Marc Zyngier
e02f6c0174 Revert "irqchip/xilinx: Do not call irq_set_default_host()"
This reverts commit 9c2d4f525c, which
breaks a number of PPC platforms.

Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/44b64be7-9240-fd52-af90-e0245220f38b@xilinx.com
2020-04-01 09:10:45 +01:00
Greg Kroah-Hartman
885a64715f Revert "driver core: platform: Initialize dma_parms for platform devices"
This reverts commit 7c8978c083, a new
version will come in the next release cycle.

Cc: <stable@vger.kernel.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Ludovic Barre <ludovic.barre@st.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-01 08:06:54 +02:00
Greg Kroah-Hartman
a9d68cbd4f Revert "amba: Initialize dma_parms for amba devices"
This reverts commit 5caf6102e3.  It still
needs some more work and that will happen for the next release cycle,
not this one.

Cc: <stable@vger.kernel.org>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Christoph Hellwig <hch@lst.de>
Cc: Ludovic Barre <ludovic.barre@st.com>
Cc: Linus Walleij <linus.walleij@linaro.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2020-04-01 08:03:28 +02:00
Stephen Rothwell
33dd888263 gpio: export of_pinctrl_get to modules
Signed-off-by: Stephen Rothwell <sfr@canb.auug.org.au>
Link: https://lore.kernel.org/r/20200401151904.6948af20@canb.auug.org.au
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2020-04-01 08:01:39 +02:00
Clement Courbet
c17eb4dca5 powerpc: Make setjmp/longjmp signature standard
Declaring setjmp()/longjmp() as taking longs makes the signature
non-standard, and makes clang complain. In the past, this has been
worked around by adding -ffreestanding to the compile flags.

The implementation looks like it only ever propagates the value
(in longjmp) or sets it to 1 (in setjmp), and we only call longjmp
with integer parameters.

This allows removing -ffreestanding from the compilation flags.

Fixes: c9029ef9c9 ("powerpc: Avoid clang warnings around setjmp and longjmp")
Cc: stable@vger.kernel.org # v4.14+
Signed-off-by: Clement Courbet <courbet@google.com>
Reviewed-by: Nathan Chancellor <natechancellor@gmail.com>
Tested-by: Nathan Chancellor <natechancellor@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200330080400.124803-1-courbet@google.com
2020-04-01 14:30:51 +11:00
Leonardo Bras
41b8426fdb powerpc/cputable: Remove unnecessary copy of cpu_spec->oprofile_type
Before checking for cpu_type == NULL, this same copy happens, so doing
it here will just write the same value to the t->oprofile_type
again.

Remove the repeated copy, as it is unnecessary.

Signed-off-by: Leonardo Bras <leonardo@linux.ibm.com>
Reviewed-by: Michael Neuling <mikey@neuling.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200215053637.280880-1-leonardo@linux.ibm.com
2020-04-01 14:30:51 +11:00
Naveen N. Rao
ba96301ce9 powerpc: Suppress .eh_frame generation
GCC v8 defaults to enabling -fasynchronous-unwind-tables due to
https://gcc.gnu.org/r259298, which results in .eh_frame section being
generated. This results in additional disk usage by the build, as well
as the kernel modules. Since the kernel has no use for this, this
section is discarded.

Add -fno-asynchronous-unwind-tables to KBUILD_CFLAGS to suppress
generation of .eh_frame section. Note that our VDSOs need .eh_frame, but
are not affected by this change since our VDSO code are all in assembly.

Reported-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Reviewed-by: Segher Boessenkool <segher@kernel.crashing.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1ed7cd84a7d1a3180b30c0c60e70eed8bb8b40c3.1583415544.git.naveen.n.rao@linux.vnet.ibm.com
2020-04-01 14:30:51 +11:00
Naveen N. Rao
c04868df38 powerpc: Drop -fno-dwarf2-cfi-asm
The original commit/discussion adding -fno-dwarf2-cfi-asm refers to
R_PPC64_REL32 relocations not being handled by our module loader:
http://lkml.kernel.org/r/20090224065112.GA6690@bombadil.infradead.org

However, that is now handled thanks to commit 9f751b82b4
("powerpc/module: Add support for R_PPC64_REL32 relocations").

So, drop this flag from our Makefile.

Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/9b22a064de6eb1301d92177eb3a38559df7005d3.1583415544.git.naveen.n.rao@linux.vnet.ibm.com
2020-04-01 14:30:51 +11:00
Mike Rapoport
b77afad84e powerpc/32: drop unused ISA_DMA_THRESHOLD
The ISA_DMA_THRESHOLD variable is set by several platforms but never
referenced.
Remove it.

Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20191125092033.20014-1-rppt@kernel.org
2020-04-01 14:30:50 +11:00
Shilpasri G Bhat
32377bd2cb powerpc/powernv: Add documentation for the opal sensor_groups sysfs interfaces
Commit bf9571550f ("powerpc/powernv: Add support to clear sensor
groups data") added a mechanism to clear sensor-group data via a sysfs
interface. However, the ABI for that interface has not been
documented.

This patch documents the ABI for the sysfs interface for sensor-groups
and clearing the sensor-groups.

This patch was originally sent by Shilpasri G Bhat on the mailing list:
https://lkml.org/lkml/2018/8/1/85

Signed-off-by: Shilpasri G Bhat <shilpa.bhat@linux.vnet.ibm.com>
Signed-off-by: Gautham R. Shenoy <ego@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/1574776274-22355-1-git-send-email-ego@linux.vnet.ibm.com
2020-04-01 14:30:50 +11:00
Michael Ellerman
9686813f6e selftests/powerpc: Fix try-run when source tree is not writable
We added a usage of try-run to pmu/ebb/Makefile to detect if the
toolchain supported the -no-pie option.

This fails if we build out-of-tree and the source tree is not
writable, as try-run tries to write its temporary files to the current
directory. That leads to the -no-pie option being silently dropped,
which leads to broken executables with some toolchains.

If we remove the redirect to /dev/null in try-run, we see the error:

  make[3]: Entering directory '/linux/tools/testing/selftests/powerpc/pmu/ebb'
  /usr/bin/ld: cannot open output file .54.tmp: Read-only file system
  collect2: error: ld returned 1 exit status
  make[3]: Nothing to be done for 'all'.

And looking with strace we see it's trying to use a file that's in the
source tree:

  lstat("/linux/tools/testing/selftests/powerpc/pmu/ebb/.54.tmp", 0x7ffffc0f83c8)

We can fix it by setting TMPOUT to point to the $(OUTPUT) directory,
and we can verify with strace it's now trying to write to the output
directory:

  lstat("/output/kselftest/powerpc/pmu/ebb/.54.tmp", 0x7fffd1bf6bf8)

And also see that the -no-pie option is now correctly detected.

Fixes: 0695f8bca9 ("selftests/powerpc: Handle Makefile for unrecognized option")
Cc: stable@vger.kernel.org # v5.5+
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200327095319.2347641-1-mpe@ellerman.id.au
2020-04-01 14:30:50 +11:00
Michael Ellerman
ead983604c powerpc/vmlinux.lds: Explicitly retain .gnu.hash
Relocatable kernel builds produce a warning about .gnu.hash being an
orphan section:

  ld: warning: orphan section `.gnu.hash' from `linker stubs' being placed in section `.gnu.hash'

If we try to discard it the build fails:

  ld -EL -m elf64lppc -pie --orphan-handling=warn --build-id -o
    .tmp_vmlinux1 -T ./arch/powerpc/kernel/vmlinux.lds --whole-archive
    arch/powerpc/kernel/head_64.o arch/powerpc/kernel/entry_64.o
    ...
    sound/built-in.a net/built-in.a virt/built-in.a --no-whole-archive
    --start-group lib/lib.a --end-group
  ld: could not find section .gnu.hash

So add an entry to explicitly retain it, as we do for .hash.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200227045933.22967-1-mpe@ellerman.id.au
2020-04-01 14:30:50 +11:00
Christophe Leroy
ccbed90b82 powerpc/ptrace: move ptrace_triggered() into hw_breakpoint.c
ptrace_triggered() is declared in asm/hw_breakpoint.h and
only needed when CONFIG_HW_BREAKPOINT is set, so move it
into hw_breakpoint.c

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/8402c516023da1371953a65af7df2008758ea0c4.1582848567.git.christophe.leroy@c-s.fr
2020-04-01 14:30:49 +11:00
Christophe Leroy
da529d4739 powerpc/ptrace: create ppc_gethwdinfo()
Create ippc_gethwdinfo() to handle PPC_PTRACE_GETHWDBGINFO and
reduce ifdef mess

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/82fefcc1ec75b96cece792878217a5d85ecda0c2.1582848567.git.christophe.leroy@c-s.fr
2020-04-01 14:30:49 +11:00
Christophe Leroy
e08227d25a powerpc/ptrace: create ptrace_get_debugreg()
Create ptrace_get_debugreg() to handle PTRACE_GET_DEBUGREG and
reduce ifdef mess

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/c1482c41a39cc216f4073a51070d8680f52d5054.1582848567.git.christophe.leroy@c-s.fr
2020-04-01 14:30:49 +11:00
Christophe Leroy
323a780ca1 powerpc/ptrace: split out ADV_DEBUG_REGS related functions.
Move ADV_DEBUG_REGS functions out of ptrace.c, into
ptrace-adv.c and ptrace-noadv.c

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
[mpe: Squash in fixup patch from Christophe]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/e2bd7d275bd5933d848aad4fee3ca652a14d039b.1582848567.git.christophe.leroy@c-s.fr
2020-04-01 14:30:49 +11:00
Christophe Leroy
6e0b79750c powerpc/ptrace: move register viewing functions out of ptrace.c
Create a dedicated ptrace-view.c file.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/bfd8c3ed57c9057e4a5d3816737b5ee98c6f7e43.1582848567.git.christophe.leroy@c-s.fr
2020-04-01 14:30:48 +11:00
Christophe Leroy
7c1f8db019 powerpc/ptrace: split out TRANSACTIONAL_MEM related functions.
Move TRANSACTIONAL_MEM functions out of ptrace.c, into
ptrace-tm.c

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/2d0ef3bb2610c0344bd42252c7134f429818c000.1582848567.git.christophe.leroy@c-s.fr
2020-04-01 14:30:48 +11:00
Christophe Leroy
60ef9dbd9d powerpc/ptrace: split out SPE related functions.
Move CONFIG_SPE functions out of ptrace.c, into
ptrace-spe.c

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/0f17a331760310b5562fae3791cdd3cf9c64237b.1582848567.git.christophe.leroy@c-s.fr
2020-04-01 14:30:48 +11:00
Christophe Leroy
1b20773b00 powerpc/ptrace: split out ALTIVEC related functions.
Move CONFIG_ALTIVEC functions out of ptrace.c, into
ptrace-altivec.c

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/35dae891d01c817fca0fd6ab406a3a2c7bf07f60.1582848567.git.christophe.leroy@c-s.fr
2020-04-01 14:30:48 +11:00
Christophe Leroy
7b99ed4e8e powerpc/ptrace: split out VSX related functions.
Move CONFIG_VSX functions out of ptrace.c, into
ptrace-vsx.c and ptrace-novsx.c

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/dc8e20c8c95b7e83add0c6dd48f9470628896c5c.1582848567.git.christophe.leroy@c-s.fr
2020-04-01 14:30:48 +11:00
Christophe Leroy
963ae6b2ff powerpc/ptrace: drop PARAMETER_SAVE_AREA_OFFSET
PARAMETER_SAVE_AREA_OFFSET is not used, drop it.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/6dac2b49207647f75cbf0e6771a545e691f0fd93.1582848567.git.christophe.leroy@c-s.fr
2020-04-01 14:30:47 +11:00
Christophe Leroy
f1763e623c powerpc/ptrace: drop unnecessary #ifdefs CONFIG_PPC64
Drop a bunch of #ifdefs CONFIG_PPC64 that are not vital.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/af38b87a7e1e3efe4f9b664eaeb029e6e7d69fdb.1582848567.git.christophe.leroy@c-s.fr
2020-04-01 14:30:47 +11:00
Christophe Leroy
b3138536c8 powerpc/ptrace: remove unused header includes
Remove unused header includes in ptrace.c and ptrace32.c

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/6276df0be87a4329c2bb46b3b0f02059ae9e70e6.1582848567.git.christophe.leroy@c-s.fr
2020-04-01 14:30:47 +11:00