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982,081 commits

Author SHA1 Message Date
Bhawanpreet Lakha
e42a34dec6 drm/amd/display: Implement voltage limitation for dali
[Why]
we only want the lowest voltage to be available for dali.

[How]
Use the get_highest_allowed_voltage_level function
to return 0 for dali

Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-09-17 14:39:55 -05:00
Bhawanpreet Lakha
8ad050e6a6 drm/amd/display: add Asic ID for Dali
Dali is a new asic revision based on raven2

Add the ID and ASICREV_IS_DALI define

Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-09-17 14:39:46 -05:00
Felix Kuehling
dcafbd50f2 drm/amdgpu: Fix KFD-related kernel oops on Hawaii
Hawaii needs to flush caches explicitly, submitting an IB in a user
VMID from kernel mode. There is no s_fence in this case.

Fixes: eb3961a574 ("drm/amdgpu: remove fence context from the job")
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-09-17 14:38:35 -05:00
Prike Liang
4f3a2c1077 drm/amd/amdgpu: power up sdma engine when S3 resume back
The sdma_v4 should be ungated when the IP resume back,
otherwise it will hang up and resume time out error.

Signed-off-by: Prike Liang <Prike.Liang@amd.com>
Reviewed-by: Evan Quan <evan.quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-09-17 14:37:58 -05:00
Trek
73d8e6c7b8 drm/amdgpu: Check for valid number of registers to read
Do not try to allocate any amount of memory requested by the user.
Instead limit it to 128 registers. Actually the longest series of
consecutive allowed registers are 48, mmGB_TILE_MODE0-31 and
mmGB_MACROTILE_MODE0-15 (0x2644-0x2673).

Bug: https://bugs.freedesktop.org/show_bug.cgi?id=111273
Signed-off-by: Trek <trek00@inbox.ru>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-09-17 14:37:45 -05:00
Hans de Goede
9dbc88d013 drm/radeon: Bail earlier when radeon.cik_/si_support=0 is passed
Bail from the pci_driver probe function instead of from the drm_driver
load function.

This avoid /dev/dri/card0 temporarily getting registered and then
unregistered again, sending unwanted add / remove udev events to
userspace.

Specifically this avoids triggering the (userspace) bug fixed by this
plymouth merge-request:
https://gitlab.freedesktop.org/plymouth/plymouth/merge_requests/59

Note that despite that being an userspace bug, not sending unnecessary
udev events is a good idea in general.

BugLink: https://bugzilla.redhat.com/show_bug.cgi?id=1490490
Reviewed-by: Michel Dänzer <mdaenzer@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-09-17 14:37:27 -05:00
Zhan Liu
c02d6a1613 drm/amd/display: Add missing HBM support and raise Vega20's uclk.
[Why]
When more than 2 displays are connected to the graphics card,
only the minimum memory clock is needed. However, when more
displays are connected, the minimum memory clock is not
sufficient enough to support the overwhelming bandwidth.
System will hang under this circumstance.

Also, the old code didn't address HBM cards, which has 2
pseudo channels. We need to add the HBM part here.

[How]
When graphics card connects to 2 or more displays,
switch to high memory clock. Also, choose memory
multiplier based on whether its regular DRAM or HBM.

Signed-off-by: Zhan Liu <zhan.liu@amd.com>
Reviewed-by: Roman Li <Roman.Li@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-09-17 14:36:33 -05:00
Charlene Liu
c46e5df4ac drm/amd/display: dce11.x /dce12 update formula input
[Description]
1. OUTSTANDING_REQUEST_LIMIT update from 0xFF to 0x1F (HW doc update)
2. using memory type to convert UMC's MCLK to Yclk.

Signed-off-by: Charlene Liu <charlene.liu@amd.com>
Reviewed-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@amd.com>
Acked-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-09-17 14:35:41 -05:00
Linus Torvalds
7f2444d38f Merge branch 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull core timer updates from Thomas Gleixner:
 "Timers and timekeeping updates:

   - A large overhaul of the posix CPU timer code which is a preparation
     for moving the CPU timer expiry out into task work so it can be
     properly accounted on the task/process.

     An update to the bogus permission checks will come later during the
     merge window as feedback was not complete before heading of for
     travel.

   - Switch the timerqueue code to use cached rbtrees and get rid of the
     homebrewn caching of the leftmost node.

   - Consolidate hrtimer_init() + hrtimer_init_sleeper() calls into a
     single function

   - Implement the separation of hrtimers to be forced to expire in hard
     interrupt context even when PREEMPT_RT is enabled and mark the
     affected timers accordingly.

   - Implement a mechanism for hrtimers and the timer wheel to protect
     RT against priority inversion and live lock issues when a (hr)timer
     which should be canceled is currently executing the callback.
     Instead of infinitely spinning, the task which tries to cancel the
     timer blocks on a per cpu base expiry lock which is held and
     released by the (hr)timer expiry code.

   - Enable the Hyper-V TSC page based sched_clock for Hyper-V guests
     resulting in faster access to timekeeping functions.

   - Updates to various clocksource/clockevent drivers and their device
     tree bindings.

   - The usual small improvements all over the place"

* 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (101 commits)
  posix-cpu-timers: Fix permission check regression
  posix-cpu-timers: Always clear head pointer on dequeue
  hrtimer: Add a missing bracket and hide `migration_base' on !SMP
  posix-cpu-timers: Make expiry_active check actually work correctly
  posix-timers: Unbreak CONFIG_POSIX_TIMERS=n build
  tick: Mark sched_timer to expire in hard interrupt context
  hrtimer: Add kernel doc annotation for HRTIMER_MODE_HARD
  x86/hyperv: Hide pv_ops access for CONFIG_PARAVIRT=n
  posix-cpu-timers: Utilize timerqueue for storage
  posix-cpu-timers: Move state tracking to struct posix_cputimers
  posix-cpu-timers: Deduplicate rlimit handling
  posix-cpu-timers: Remove pointless comparisons
  posix-cpu-timers: Get rid of 64bit divisions
  posix-cpu-timers: Consolidate timer expiry further
  posix-cpu-timers: Get rid of zero checks
  rlimit: Rewrite non-sensical RLIMIT_CPU comment
  posix-cpu-timers: Respect INFINITY for hard RTTIME limit
  posix-cpu-timers: Switch thread group sampling to array
  posix-cpu-timers: Restructure expiry array
  posix-cpu-timers: Remove cputime_expires
  ...
2019-09-17 12:35:15 -07:00
Aaron Liu
df794f679b drm/amdgpu: remove program of lbpw for renoir
These is no LBPW on Renoir. So removing program of lbpw for renoir.

Signed-off-by: Aaron Liu <aaron.liu@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-09-17 14:26:24 -05:00
Andrey Grodzovsky
103efdc1ea drm/amdgpu: Remove clock gating restore.
Restoring clock gating break SMU opeartion afterwards, avoid
this until this further invistigated with SMU.

Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-and-tested-by: Guchun Chen <guchun.chen@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-09-17 14:25:01 -05:00
Andrey Grodzovsky
1963b7c3be drm/amdgpu: Add smu lock around in pp_smu_i2c_bus_access
Protect from concurrent SMU accesses.

Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Tao Zhou <tao.zhou1@amd.com>
Reviewed-and-tested-by: Guchun Chen <guchun.chen@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-09-17 14:23:58 -05:00
Aaron Liu
f79e06bd44 drm/amd/display: update renoir_ip_offset.h
This patch updates MP1_BASE in renoir_ip_offset.h

Signed-off-by: Aaron Liu <aaron.liu@amd.com>
Acked-by: Roman Li <roman.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-09-17 14:22:29 -05:00
Trond Myklebust
714fbc7388 SUNRPC: RPC level errors should always set task->tk_rpc_status
Ensure that we set task->tk_rpc_status for all RPC level errors so that
the caller can distinguish between those and server reply status errors.

Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2019-09-17 15:14:11 -04:00
Trond Myklebust
45835a63d0 SUNRPC: Don't receive TCP data into a request buffer that has been reset
If we've removed the request from the receive list, and have added
it back after resetting the request receive buffer, then we should
only receive message data if it is a new reply (i.e. if
transport->recv.copied is zero).

Fixes: 277e4ab7d5 ("SUNRPC: Simplify TCP receive code by switching...")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2019-09-17 15:14:11 -04:00
Trond Myklebust
cc204d0126 SUNRPC: Dequeue the request from the receive queue while we're re-encoding
Ensure that we dequeue the request from the transport receive queue
while we're re-encoding to prevent issues like use-after-free when
we release the bvec.

Fixes: 7536908982 ("SUNRPC: Ensure the bvecs are reset when we re-encode...")
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Cc: stable@vger.kernel.org # v4.20+
Signed-off-by: Anna Schumaker <Anna.Schumaker@Netapp.com>
2019-09-17 15:14:11 -04:00
Linus Torvalds
c5f12fdb8b Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 apic updates from Thomas Gleixner:

 - Cleanup the apic IPI implementation by removing duplicated code and
   consolidating the functions into the APIC core.

 - Implement a safe variant of the IPI broadcast mode. Contrary to
   earlier attempts this uses the core tracking of which CPUs have been
   brought online at least once so that a broadcast does not end up in
   some dead end in BIOS/SMM code when the CPU is still waiting for
   init. Once all CPUs have been brought up once, IPI broadcasting is
   enabled. Before that regular one by one IPIs are issued.

 - Drop the paravirt CR8 related functions as they have no user anymore

 - Initialize the APIC TPR to block interrupt 16-31 as they are reserved
   for CPU exceptions and should never be raised by any well behaving
   device.

 - Emit a warning when vector space exhaustion breaks the admin set
   affinity of an interrupt.

 - Make sure to use the NMI fallback when shutdown via reboot vector IPI
   fails. The original code had conditions which prevent the code path
   to be reached.

 - Annotate various APIC config variables as RO after init.

[ The ipi broadcase change came in earlier through the cpu hotplug
  branch, but I left the explanation in the commit message since it was
  shared between the two different branches    - Linus ]

* 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (28 commits)
  x86/apic/vector: Warn when vector space exhaustion breaks affinity
  x86/apic: Annotate global config variables as "read-only after init"
  x86/apic/x2apic: Implement IPI shorthands support
  x86/apic/flat64: Remove the IPI shorthand decision logic
  x86/apic: Share common IPI helpers
  x86/apic: Remove the shorthand decision logic
  x86/smp: Enhance native_send_call_func_ipi()
  x86/smp: Move smp_function_call implementations into IPI code
  x86/apic: Provide and use helper for send_IPI_allbutself()
  x86/apic: Add static key to Control IPI shorthands
  x86/apic: Move no_ipi_broadcast() out of 32bit
  x86/apic: Add NMI_VECTOR wait to IPI shorthand
  x86/apic: Remove dest argument from __default_send_IPI_shortcut()
  x86/hotplug: Silence APIC and NMI when CPU is dead
  x86/cpu: Move arch_smt_update() to a neutral place
  x86/apic/uv: Make x2apic_extra_bits static
  x86/apic: Consolidate the apic local headers
  x86/apic: Move apic_flat_64 header into apic directory
  x86/apic: Move ipi header into apic directory
  x86/apic: Cleanup the include maze
  ...
2019-09-17 12:04:39 -07:00
Aaron Liu
5813f97a59 drm/amdgpu: disable stutter mode for renoir
With stutter mode enabled, NMI prints frequently.
Disable stutter for the moment because NMI warning storm, and will
enable it back till the issue is addressed

Signed-off-by: Aaron Liu <aaron.liu@amd.com>
Acked-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-09-17 13:56:03 -05:00
Roman Li
59b263620c drm/amd/display: Add stereo mux and dig programming calls for dcn21
[Why]
The earlier patch "Hook up calls to do stereo mux and dig programming..."
doesn't include update for dcn21.

[How]
Align dcn21 gpio settings with updated stereo control interface.

Signed-off-by: Roman Li <Roman.Li@amd.com>
Acked-by: Aaron Liu <aaron.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-09-17 13:55:47 -05:00
Linus Torvalds
a572ba6329 Merge branch 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull core irq updates from Thomas Gleixner:
 "Updates from the irq departement:

   - Update the interrupt spreading code so it handles numa node with
     different CPU counts properly.

   - A large overhaul of the ARM GiCv3 driver to support new PPI and SPI
     ranges.

   - Conversion of all alloc_fwnode() users to use physical addresses
     instead of virtual addresses so the virtual addresses are not
     leaked. The physical address is sufficient to identify the
     associated interrupt chip.

   - Add support for Marvel MMP3, Amlogic Meson SM1 interrupt chips.

   - Enforce interrupt threading at compile time if RT is enabled.

   - Small updates and improvements all over the place"

* 'irq-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (37 commits)
  irqchip/gic-v3-its: Fix LPI release for Multi-MSI devices
  irqchip/uniphier-aidet: Use devm_platform_ioremap_resource()
  irqdomain: Add the missing assignment of domain->fwnode for named fwnode
  irqchip/mmp: Coexist with GIC root IRQ controller
  irqchip/mmp: Mask off interrupts from other cores
  irqchip/mmp: Add missing chained_irq_{enter,exit}()
  irqchip/mmp: Do not use of_address_to_resource() to get mux regs
  irqchip/meson-gpio: Add support for meson sm1 SoCs
  dt-bindings: interrupt-controller: New binding for the meson sm1 SoCs
  genirq/affinity: Remove const qualifier from node_to_cpumask argument
  genirq/affinity: Spread vectors on node according to nr_cpu ratio
  genirq/affinity: Improve __irq_build_affinity_masks()
  irqchip: Remove dev_err() usage after platform_get_irq()
  irqchip: Add include guard to irq-partition-percpu.h
  irqchip/mmp: Do not call irq_set_default_host() on DT platforms
  irqchip/gic-v3-its: Remove the redundant set_bit for lpi_map
  irqchip/gic-v3: Add quirks for HIP06/07 invalid GICD_TYPER erratum 161010803
  irqchip/gic: Skip DT quirks when evaluating IIDR-based quirks
  irqchip/gic-v3: Warn about inconsistent implementations of extended ranges
  irqchip/gic-v3: Add EPPI range support
  ...
2019-09-17 11:42:15 -07:00
Micah Morton
21ab8580b3 LSM: SafeSetID: Stop releasing uninitialized ruleset
The first time a rule set is configured for SafeSetID, we shouldn't be
trying to release the previously configured ruleset, since there isn't
one. Currently, the pointer that would point to a previously configured
ruleset is uninitialized on first rule set configuration, leading to a
crash when we try to call release_ruleset with that pointer.

Acked-by: Jann Horn <jannh@google.com>
Signed-off-by: Micah Morton <mortonm@chromium.org>
2019-09-17 11:27:05 -07:00
Linus Torvalds
258b16ec9a Merge branch 'x86-irq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 interrupt updates from Thomas Gleixner:
 "A small set of changes to simplify and improve the interrupt handling
  in do_IRQ() by moving the common case into common code and thereby
  cleaning it up"

* 'x86-irq-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/irq: Check for VECTOR_UNUSED directly
  x86/irq: Move IS_ERR_OR_NULL() check into common do_IRQ() code
  x86/irq: Improve definition of VECTOR_SHUTDOWN et al
2019-09-17 11:13:48 -07:00
Linus Torvalds
3fb7f3a6ed Merge branch 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 pti updates from Thomas Gleixner:
 "Two small PTI updates:

   - Handle unaligned addresses gracefully in pti_clone_pagetable(). Not
     an issue with current callers, but a correctness problem. Adds a
     warning so any caller which hands in an unaligned address gets
     pointed out clearly.

   - Prevent PTI functions from being invoked when PTI is disabled at
     boottime. While this does not cause any harm today, it's pointless
     code executed and prone to cause subtle issues if the PTI
     implementation changes internally over time"

* 'x86-pti-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/mm/pti: Do not invoke PTI functions when PTI is disabled
  x86/mm/pti: Handle unaligned address gracefully in pti_clone_pagetable()
2019-09-17 11:02:21 -07:00
Lyude Paul
a859f1270a drm/encoder: Don't raise voice in drm_encoder_mask() documentation
There's no need to raise our voice when saying encoder, we're all
civilized adults here!

Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190913222704.8241-4-lyude@redhat.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2019-09-17 13:58:18 -04:00
Lyude Paul
c873724d88 drm/encoder: Fix possible_crtcs documentation
Similar to possible_clones, we don't actually use possible_crtcs until
the driver is registered with userspace. So, fix the documentation to
indicate this.

Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190913222704.8241-3-lyude@redhat.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2019-09-17 13:58:17 -04:00
Lyude Paul
8c8ae2fe8d drm/encoder: Fix possible_clones documentation
We say that all of the bits in possible_clones must be set before
calling drm_encoder_init(). This isn't true though, since:

* The driver may not even have all of the encoder objects that could be
  used as clones initialized at that point
* possible_crtcs isn't used at all outside of userspace, so it's not
  actually needed to initialize it until drm_dev_register()

So, fix it.

Signed-off-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190913222704.8241-2-lyude@redhat.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2019-09-17 13:58:17 -04:00
Linus Torvalds
3cd0462230 Merge branch 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull CPU hotplug updates from Thomas Gleixner:
 "A small update for the SMP hotplug code code:

   - Track "booted once" CPUs in a cpumask so the x86 APIC code has an
     easy way to decide whether broadcast IPIs are safe to use or not.

   - Implement a cpumask_or_equal() helper for the IPI broadcast
     evaluation.

     The above two changes have been also pulled into the x86/apic
     branch for implementing the conditional IPI broadcast feature.

   - Cache the number of online CPUs instead of reevaluating it over and
     over. num_online_cpus() is an unreliable snapshot anyway except
     when it is used outside a cpu hotplug locked region. The cached
     access is not changing this, but it's definitely faster than
     calculating the bitmap wheight especially in hot paths"

* 'smp-hotplug-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  cpu/hotplug: Cache number of online CPUs
  cpumask: Implement cpumask_or_equal()
  smp/hotplug: Track booted once CPUs in a cpumask
2019-09-17 10:32:05 -07:00
Taniya Das
21ea4b62e1 clk: qcom: rcg: Return failure for RCG update
In case of update config failure, return -EBUSY, so that consumers could
handle the failure gracefully.

Signed-off-by: Taniya Das <tdas@codeaurora.org>
Link: https://lkml.kernel.org/r/1557339895-21952-2-git-send-email-tdas@codeaurora.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-09-17 10:29:39 -07:00
Lubomir Rintel
863e53e6ed clk: remove extra ---help--- tags in Kconfig
Sometimes an extraneous "---help---" follows "help". That is probably a
copy&paste error stemming from their inconsistent use. Remove those.

Signed-off-by: Lubomir Rintel <lkundrak@v3.sk>
Link: https://lkml.kernel.org/r/20190822093126.594013-1-lkundrak@v3.sk
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-09-17 10:27:57 -07:00
Masahiro Yamada
d7aef6ef96 clk: add include guard to clk-conf.h
Add a header include guard just in case.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Link: https://lkml.kernel.org/r/20190820030536.1181-1-yamada.masahiro@socionext.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-09-17 10:27:46 -07:00
Stephen Boyd
bdcf1dc253 clk: Evict unregistered clks from parent caches
We leave a dangling pointer in each clk_core::parents array that has an
unregistered clk as a potential parent when that clk_core pointer is
freed by clk{_hw}_unregister(). It is impossible for the true parent of
a clk to be set with clk_set_parent() once the dangling pointer is left
in the cache because we compare parent pointers in
clk_fetch_parent_index() instead of checking for a matching clk name or
clk_hw pointer.

Before commit ede7785847 ("clk: Remove global clk traversal on fetch
parent index"), we would check clk_hw pointers, which has a higher
chance of being the same between registration and unregistration, but it
can still be allocated and freed by the clk provider. In fact, this has
been a long standing problem since commit da0f0b2c3a ("clk: Correct
lookup logic in clk_fetch_parent_index()") where we stopped trying to
compare clk names and skipped over entries in the cache that weren't
NULL.

There are good (performance) reasons to not do the global tree lookup in
cases where the cache holds dangling pointers to parents that have been
unregistered. Let's take the performance hit on the uncommon
registration path instead. Loop through all the clk_core::parents arrays
when a clk is unregistered and set the entry to NULL when the parent
cache entry and clk being unregistered are the same pointer. This will
fix this problem and avoid the overhead for the "normal" case.

Based on a patch by Bjorn Andersson.

Fixes: da0f0b2c3a ("clk: Correct lookup logic in clk_fetch_parent_index()")
Reviewed-by: Bjorn Andersson <bjorn.andersson@linaro.org>
Tested-by: Sai Prakash Ranjan <saiprakash.ranjan@codeaurora.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
Link: https://lkml.kernel.org/r/20190828181959.204401-1-sboyd@kernel.org
2019-09-17 10:24:02 -07:00
Weiyi Lu
327aa74156 clk: mediatek: Runtime PM support for MT8183 mcucfg clock provider
Enable the runtime PM support and forward the struct device pointer for
registration of MT8183 mcucfg clocks.

Signed-off-by: Weiyi Lu <weiyi.lu@mediatek.com>
Link: https://lkml.kernel.org/r/1567414859-3244-3-git-send-email-weiyi.lu@mediatek.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-09-17 10:22:49 -07:00
Weiyi Lu
e4c23e19aa clk: mediatek: Register clock gate with device
Allow those clocks under a power domain to do the runtime pm operation
by forwarding the struct device pointer from clock provider.

Signed-off-by: Weiyi Lu <weiyi.lu@mediatek.com>
Link: https://lkml.kernel.org/r/1567414859-3244-2-git-send-email-weiyi.lu@mediatek.com
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-09-17 10:22:49 -07:00
Chunfeng Yun
f9e55ac22c clk: mediatek: add pericfg clocks for MT8183
Add pericfg clocks for MT8183, it's used when support USB
remote wakeup

Cc: Weiyi Lu <weiyi.lu@mediatek.com>
Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lkml.kernel.org/r/1566980533-28282-2-git-send-email-chunfeng.yun@mediatek.com
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-09-17 10:17:41 -07:00
Chunfeng Yun
5aa00ad3fd dt-bindings: clock: mediatek: add pericfg for MT8183
This patch adds binding of pericfg for MT8183.

Signed-off-by: Chunfeng Yun <chunfeng.yun@mediatek.com>
Link: https://lkml.kernel.org/r/1566980533-28282-1-git-send-email-chunfeng.yun@mediatek.com
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
2019-09-17 10:17:39 -07:00
Linus Torvalds
16208cd6c3 Merge branch 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fix from Thomas Gleixner:
 "A single fix to prevent the alarm timer code from returning ENOTSUPP
  to user space.

  ENOTSUPP is a purely kernel internal error code related to NFSv3 and
  should never be handed back to user space. The risk for ABI breakage
  is low as the number of systems which do not have a working RTC is
  very limited"

* 'timers-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  alarmtimer: Use EOPNOTSUPP instead of ENOTSUPP
2019-09-17 10:12:41 -07:00
Stefan Wahren
5c5ba218c6 clk: bcm2835: Mark PLLD_PER as CRITICAL
The VPU firmware assume that the PLLD_PER isn't modified by the ARM core.
Otherwise this could cause firmware lookups. So mark the clock as critical
to avoid this.

Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
2019-09-17 09:55:31 -07:00
Stefan Wahren
42de9ad400 clk: bcm2835: Add BCM2711_CLOCK_EMMC2 support
The new BCM2711 supports an additional clock for the emmc2 block.
So add a new compatible and register this clock only for BCM2711.

Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Reviewed-by: Matthias Brugger <mbrugger@suse.com>
Acked-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
2019-09-17 09:55:31 -07:00
Stefan Wahren
ee0a5a9013 clk: bcm2835: Introduce SoC specific clock registration
In order to support SoC specific clocks (e.g. emmc2 for BCM2711), we
extend the description with a SoC support flag. This approach avoids long
and mostly redundant lists of clock IDs. Since PLLH is specific to
BCM2835, we register only rest of the clocks as common to all SoC.

Suggested-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Reviewed-by: Matthias Brugger <mbrugger@suse.com>
Acked-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
2019-09-17 09:55:31 -07:00
Stefan Wahren
80766f8726 dt-bindings: bcm2835-cprman: Add bcm2711 support
The new BCM2711 supports an additional clock for the emmc2 block.
So we need an additional compatible.

Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Acked-by: Eric Anholt <eric@anholt.net>
Reviewed-by: Eric Anholt <eric@anholt.net>
2019-09-17 09:55:30 -07:00
Jon Derrick
a1a3017013 PCI: vmd: Fix shadow offsets to reflect spec changes
The shadow offset scratchpad was moved to 0x2000-0x2010. Update the
location to get the correct shadow offset.

Fixes: 6788958e4f ("PCI: vmd: Assign membar addresses from shadow registers")
Signed-off-by: Jon Derrick <jonathan.derrick@intel.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: stable@vger.kernel.org # v5.2+
2019-09-17 17:40:18 +01:00
Jon Derrick
e3dffa4f6c PCI: vmd: Fix config addressing when using bus offsets
VMD maps child device config spaces to the VMD Config BAR linearly
regardless of the starting bus offset. Because of this, the config
address decode must ignore starting bus offsets when mapping the BDF to
the config space address.

Fixes: 2a5a9c9a20 ("PCI: vmd: Add offset to bus numbers if necessary")
Signed-off-by: Jon Derrick <jonathan.derrick@intel.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: stable@vger.kernel.org # v5.2+
2019-09-17 17:39:08 +01:00
Steven Rostedt (VMware)
604e354823 selftests/ftrace: Select an existing function in kprobe_eventname test
Running the ftrace selftests on the latest kernel caused the
kprobe_eventname test to fail. It was due to the test that searches for
a function with at "dot" in the name and adding a probe to that.
Unfortunately, for this test, it picked:

 optimize_nops.isra.2.cold.4

Which happens to be marked as "__init", which means it no longer exists
in the kernel! (kallsyms keeps those function names around for tracing
purposes)

As only functions that still exist are in the
available_filter_functions file, as they are removed when the functions
are freed at boot or module exit, have the test search for a function
with ".isra." in the name as well as being in the
available_filter_functions (if the file exists).

Link: http://lkml.kernel.org/r/20190322150923.1b58eca5@gandalf.local.home

Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2019-09-17 12:05:13 -04:00
Marco Felsch
f8970d341e
regulator: core: make regulator_register() EPROBE_DEFER aware
Sometimes it can happen that the regulator_of_get_init_data() can't
retrieve the config due to a not probed device the regulator depends on.
Fix that by checking the return value of of_parse_cb() and return
EPROBE_DEFER in such cases.

Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Link: https://lore.kernel.org/r/20190917154021.14693-4-m.felsch@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-09-17 16:59:38 +01:00
Marco Felsch
131cb1210d
regulator: of: fix suspend-min/max-voltage parsing
Currently the regulator-suspend-min/max-microvolt must be within the
root regulator node but the dt-bindings specifies it as subnode
properties for the regulator-state-[mem/disk/standby] node. The only DT
using this bindings currently is the at91-sama5d2_xplained.dts and this
DT uses it correctly. I don't know if it isn't tested but it can't work
without this fix.

Fixes: f7efad10b5 ("regulator: add PM suspend and resume hooks")
Signed-off-by: Marco Felsch <m.felsch@pengutronix.de>
Link: https://lore.kernel.org/r/20190917154021.14693-3-m.felsch@pengutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-09-17 16:59:18 +01:00
Bard Liao
a0a4bf57a9
ASoC: core: delete component->card_list in soc_remove_component only
We add component->card_list in the end of soc_probe_component(). In
other words, component->card_list will not be added if there is an
error in the soc_probe_component() function. So we can't delete
component->card_list in the error handling of soc_probe_component().

Fixes: 22d1423187 ("ASoC: soc-core: add soc_cleanup_component()")
Signed-off-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Reviewed-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20190916210353.6318-1-yung-chuan.liao@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-09-17 16:56:38 +01:00
Mihai Serban
e75f4940e8
ASoC: fsl_sai: Fix noise when using EDMA
EDMA requires the period size to be multiple of maxburst. Otherwise the
remaining bytes are not transferred and thus noise is produced.

We can handle this issue by adding a constraint on
SNDRV_PCM_HW_PARAM_PERIOD_SIZE to be multiple of tx/rx maxburst value.

Signed-off-by: Mihai Serban <mihai.serban@nxp.com>
Signed-off-by: Daniel Baluta <daniel.baluta@nxp.com>
Acked-by: Nicolin Chen <nicoleotsuka@gmail.com>
Link: https://lore.kernel.org/r/20190913192807.8423-2-daniel.baluta@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2019-09-17 16:56:19 +01:00
Colin Ian King
aa28b98d6d unicode: make array 'token' static const, makes object smaller
Don't populate the array 'token' on the stack but instead make it
static const. Makes the object code smaller by 234 bytes.

Before:
   text	   data	    bss	    dec	    hex	filename
   5371	    272	      0	   5643	   160b	fs/unicode/utf8-core.o

After:
   text	   data	    bss	    dec	    hex	filename
   5041	    368	      0	   5409	   1521	fs/unicode/utf8-core.o

(gcc version 9.2.1, amd64)

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.com>
2019-09-17 11:48:24 -04:00
Krzysztof Wilczynski
334b427e96 unicode: Move static keyword to the front of declarations
Move the static keyword to the front of declarations of nfdi_test_data
and nfdicf_test_data, and resolve the following compiler warnings that
can be seen when building with warnings enabled (W=1):

fs/unicode/utf8-selftest.c:38:1: warning:
  ‘static’ is not at beginning of declaration [-Wold-style-declaration]

fs/unicode/utf8-selftest.c:92:1: warning:
  ‘static’ is not at beginning of declaration [-Wold-style-declaration]

Signed-off-by: Krzysztof Wilczynski <kw@linux.com>
Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.com>
2019-09-17 11:48:11 -04:00
Masami Hiramatsu
d59fae6fea tracing/kprobe: Fix NULL pointer access in trace_porbe_unlink()
Fix NULL pointer access in trace_probe_unlink() by initializing
trace_probe.list correctly in trace_probe_init().

In the error case of trace_probe_init(), it can call trace_probe_unlink()
before initializing trace_probe.list member. This causes NULL pointer
dereference at list_del_init() in trace_probe_unlink().

Syzbot reported :

kasan: CONFIG_KASAN_INLINE enabled
kasan: GPF could be caused by NULL-ptr deref or user memory access
general protection fault: 0000 [#1] PREEMPT SMP KASAN
CPU: 1 PID: 8633 Comm: syz-executor797 Not tainted 5.3.0-rc8-next-20190915
#0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS
Google 01/01/2011
RIP: 0010:__list_del_entry_valid+0x85/0xf5 lib/list_debug.c:51
Code: 0f 84 e1 00 00 00 48 b8 22 01 00 00 00 00 ad de 49 39 c4 0f 84 e2 00
00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 75
53 49 8b 14 24 4c 39 f2 0f 85 99 00 00 00 49 8d 7d
RSP: 0018:ffff888090a7f9d8 EFLAGS: 00010246
RAX: dffffc0000000000 RBX: ffff88809b6f90c0 RCX: ffffffff817c0ca9
RDX: 0000000000000000 RSI: ffffffff817c0a73 RDI: ffff88809b6f90c8
RBP: ffff888090a7f9f0 R08: ffff88809a04e600 R09: ffffed1015d26aed
R10: ffffed1015d26aec R11: ffff8880ae935763 R12: 0000000000000000
R13: 0000000000000000 R14: ffff88809b6f90c0 R15: ffff88809b6f90d0
FS:  0000555556f99880(0000) GS:ffff8880ae900000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00000000006cc090 CR3: 00000000962b2000 CR4: 00000000001406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
  __list_del_entry include/linux/list.h:131 [inline]
  list_del_init include/linux/list.h:190 [inline]
  trace_probe_unlink+0x1f/0x200 kernel/trace/trace_probe.c:959
  trace_probe_cleanup+0xd3/0x110 kernel/trace/trace_probe.c:973
  trace_probe_init+0x3f2/0x510 kernel/trace/trace_probe.c:1011
  alloc_trace_uprobe+0x5e/0x250 kernel/trace/trace_uprobe.c:353
  create_local_trace_uprobe+0x109/0x4a0 kernel/trace/trace_uprobe.c:1508
  perf_uprobe_init+0x131/0x210 kernel/trace/trace_event_perf.c:314
  perf_uprobe_event_init+0x106/0x1a0 kernel/events/core.c:8898
  perf_try_init_event+0x135/0x590 kernel/events/core.c:10184
  perf_init_event kernel/events/core.c:10228 [inline]
  perf_event_alloc.part.0+0x1b89/0x33d0 kernel/events/core.c:10505
  perf_event_alloc kernel/events/core.c:10887 [inline]
  __do_sys_perf_event_open+0xa2d/0x2d00 kernel/events/core.c:10989
  __se_sys_perf_event_open kernel/events/core.c:10871 [inline]
  __x64_sys_perf_event_open+0xbe/0x150 kernel/events/core.c:10871
  do_syscall_64+0xfa/0x760 arch/x86/entry/common.c:290
  entry_SYSCALL_64_after_hwframe+0x49/0xbe

Link: http://lkml.kernel.org/r/156869709721.22406.5153754822203046939.stgit@devnote2

Reported-by: syzbot+2f807f4d3a2a4e87f18f@syzkaller.appspotmail.com
Fixes: ca89bc071d ("tracing/kprobe: Add multi-probe per event support")
Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>
2019-09-17 11:21:29 -04:00