Commit Graph

967976 Commits

Author SHA1 Message Date
a3ff25fc3c KVM: vmx: rename pi_init to avoid conflict with paride
allyesconfig results in:

ld: drivers/block/paride/paride.o: in function `pi_init':
(.text+0x1340): multiple definition of `pi_init'; arch/x86/kvm/vmx/posted_intr.o:posted_intr.c:(.init.text+0x0): first defined here
make: *** [Makefile:1164: vmlinux] Error 1

because commit:

commit 8888cdd099
Author: Xiaoyao Li <xiaoyao.li@intel.com>
Date:   Wed Sep 23 11:31:11 2020 -0700

    KVM: VMX: Extract posted interrupt support to separate files

added another pi_init(), though one already existed in the paride code.

Reported-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-10-24 04:09:54 -04:00
764388ce59 KVM: x86/mmu: Avoid modulo operator on 64-bit value to fix i386 build
Replace a modulo operator with the more common pattern for computing the
gfn "offset" of a huge page to fix an i386 build error.

  arch/x86/kvm/mmu/tdp_mmu.c:212: undefined reference to `__umoddi3'

In fact, almost all of tdp_mmu.c can be elided on 32-bit builds, but
that is a much larger patch.

Fixes: 2f2fad0897 ("kvm: x86/mmu: Add functions to handle changed TDP SPTEs")
Reported-by: Daniel Díaz <daniel.diaz@linaro.org>
Signed-off-by: Sean Christopherson <sean.j.christopherson@intel.com>
Message-Id: <20201024031150.9318-1-sean.j.christopherson@intel.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2020-10-24 04:05:40 -04:00
aef0388aa9 cifs: update internal module version number
To 2.29

Signed-off-by: Steve French <stfrench@microsoft.com>
2020-10-23 23:41:49 -05:00
435ccfa894 tcp: Prevent low rmem stalls with SO_RCVLOWAT.
With SO_RCVLOWAT, under memory pressure,
it is possible to enter a state where:

1. We have not received enough bytes to satisfy SO_RCVLOWAT.
2. We have not entered buffer pressure (see tcp_rmem_pressure()).
3. But, we do not have enough buffer space to accept more packets.

In this case, we advertise 0 rwnd (due to #3) but the application does
not drain the receive queue (no wakeup because of #1 and #2) so the
flow stalls.

Modify the heuristic for SO_RCVLOWAT so that, if we are advertising
rwnd<=rcv_mss, force a wakeup to prevent a stall.

Without this patch, setting tcp_rmem to 6143 and disabling TCP
autotune causes a stalled flow. With this patch, no stall occurs. This
is with RPC-style traffic with large messages.

Fixes: 03f45c883c ("tcp: avoid extra wakeups for SO_RCVLOWAT users")
Signed-off-by: Arjun Roy <arjunroy@google.com>
Acked-by: Soheil Hassas Yeganeh <soheil@google.com>
Acked-by: Neal Cardwell <ncardwell@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20201023184709.217614-1-arjunroy.kdev@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-23 19:11:20 -07:00
dab234227c net: ucc_geth: Drop extraneous parentheses in comparison
Clang warns about the extra parentheses in this comparison:

  drivers/net/ethernet/freescale/ucc_geth.c:1361:28:
  warning: equality comparison with extraneous parentheses
    if ((ugeth->phy_interface == PHY_INTERFACE_MODE_SGMII))
         ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~

It seems clear the intent here is to do a comparison not an
assignment, so drop the extra parentheses to avoid any confusion.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20201023033236.3296988-1-mpe@ellerman.id.au
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-23 18:44:06 -07:00
0c3b7f4b81 Merge branch 'ionic-memory-usage-fixes'
Shannon Nelson says:

====================
ionic: memory usage fixes

This patchset addresses some memory leaks and incorrect
io reads.
====================

Link: https://lore.kernel.org/r/20201022235531.65956-1-snelson@pensando.io
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-23 18:37:26 -07:00
0c32a28e24 ionic: fix mem leak in rx_empty
The sentinel descriptor entry was getting missed in the
traverse of the ring from head to tail, so change to a
loop of 0 to the end.

Fixes: f1d2e894f1 ("ionic: use index not pointer for queue tracking")
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-23 18:37:23 -07:00
43ecf7b46f ionic: no rx flush in deinit
Kmemleak pointed out to us that ionic_rx_flush() is sending
skbs into napi_gro_XXX with a disabled napi context, and these
end up getting lost and leaked.  We can safely remove the flush.

Fixes: 0f3154e6bc ("ionic: Add Tx and Rx handling")
Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-23 18:37:23 -07:00
d701ec326a ionic: clean up sparse complaints
The sparse complaints around the static_asserts were obscuring
more useful complaints.  So, don't check the static_asserts,
and fix the remaining sparse complaints.

Signed-off-by: Shannon Nelson <snelson@pensando.io>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-23 18:37:23 -07:00
4f3391ce8f chelsio/chtls: fix tls record info to user
chtls_pt_recvmsg() receives a skb with tls header and subsequent
skb with data, need to finalize the data copy whenever next skb
with tls header is available. but here current tls header is
overwritten by next available tls header, ends up corrupting
user buffer data. fixing it by finalizing current record whenever
next skb contains tls header.

v1->v2:
- Improved commit message.

Fixes: 17a7d24aa8 ("crypto: chtls - generic handling of data and hdr")
Signed-off-by: Vinay Kumar Yadav <vinay.yadav@chelsio.com>
Link: https://lore.kernel.org/r/20201022190556.21308-1-vinay.yadav@chelsio.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-23 18:34:10 -07:00
df833050cc net: ipa: command payloads already mapped
IPA transactions describe actions to be performed by the IPA
hardware.  Three cases use IPA transactions:  transmitting a socket
buffer; providing a page to receive packet data; and issuing an IPA
immediate command.  An IPA transaction contains a scatter/gather
list (SGL) to hold the set of actions to be performed.

We map buffers in the SGL for DMA at the time they are added to the
transaction.  For skb TX transactions, we fill the SGL with a call
to skb_to_sgvec().  Page RX transactions involve a single page
pointer, and that is recorded in the SGL with sg_set_page().  In
both of these cases we then map the SGL for DMA with a call to
dma_map_sg().

Immediate commands are different.  The payload for an immediate
command comes from a region of coherent DMA memory, which must
*not* be mapped for DMA.  For that reason, gsi_trans_cmd_add()
sort of hand-crafts each SGL entry added to a command transaction.

This patch fixes a problem with the code that crafts the SGL entry
for an immediate command.  Previously a portion of the SGL entry was
updated using sg_set_buf().  However this is not valid because it
includes a call to virt_to_page() on the buffer, but the command
buffer pointer is not a linear address.

Since we never actually map the SGL for command transactions, there
are very few fields in the SGL we need to fill.  Specifically, we
only need to record the DMA address and the length, so they can be
used by __gsi_trans_commit() to fill a TRE.  We additionally need to
preserve the SGL flags so for_each_sg() still works.  For that we
can simply assign a null page pointer for command SGL entries.

Fixes: 9dd441e4ed ("soc: qcom: ipa: GSI transactions")
Reported-by: Stephen Boyd <swboyd@chromium.org>
Tested-by: Stephen Boyd <swboyd@chromium.org>
Signed-off-by: Alex Elder <elder@linaro.org>
Link: https://lore.kernel.org/r/20201022010029.11877-1-elder@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2020-10-23 18:28:52 -07:00
b18c1eb975 drm/i915/dg1: invert HPD pins
HPD pins are inverted for DG1 platform.

Bspec: 49956
Cc: José Roberto de Souza <jose.souza@intel.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Clinton A Taylor <clinton.a.taylor@intel.com>
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201021082034.3170478-3-lucas.demarchi@intel.com
2020-10-23 17:16:06 -07:00
229f31e2d3 drm/i915/dg1: add hpd interrupt handling
DG1 has one more combo phy port, no TC and all irq handling goes through
SDE, like for MCC.

v2: Also change intel_hpd_pin_default() to include DG1 mapping
v3, v4: Rebase on hpd refactor

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Anshuman Gupta <anshuman.gupta@intel.com>
Cc: José Roberto de Souza <jose.souza@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201021082034.3170478-2-lucas.demarchi@intel.com
2020-10-23 17:15:39 -07:00
f11901ed72 Merge tag 'xfs-5.10-merge-7' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux
Pull xfs fixes from Darrick Wong:
 "Two bug fixes that trickled in during the merge window:

   - Make fallocate check the alignment of its arguments against the
     fundamental allocation unit of the volume the file lives on, so
     that we don't trigger the fs' alignment checks.

   - Cancel unprocessed log intents immediately when log recovery fails,
     to avoid a log deadlock"

* tag 'xfs-5.10-merge-7' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: cancel intents immediately if process_intents fails
  xfs: fix fallocate functions when rtextsize is larger than 1
2020-10-23 17:15:06 -07:00
c80e42a496 Merge tag 'docs-5.10-2' of git://git.lwn.net/linux
Pull documentation fixes from Jonathan Corbet:
 "A handful of late-arriving documentation fixes"

* tag 'docs-5.10-2' of git://git.lwn.net/linux:
  docs: Add two missing entries in vm sysctl index
  docs/vm: trivial fixes to several spelling mistakes
  docs: submitting-patches: describe preserving review/test tags
  Documentation: Chinese translation of Documentation/arm64/hugetlbpage.rst
  Documentation: x86: fix a missing word in x86_64/mm.rst.
  docs: driver-api: remove a duplicated index entry
  docs: lkdtm: Modernize and improve details
  docs: deprecated.rst: Expand str*cpy() replacement notes
  docs/cpu-load: format the example code.
2020-10-23 17:13:53 -07:00
a5e5c274c9 Merge tag 'trace-v5.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace
Pull tracing ring-buffer fix from Steven Rostedt:
 "The success return value of ring_buffer_resize() is stated to be
  zero and checked that way.

  But it was incorrectly returning the size allocated.

  Also, a fix to a comment"

* tag 'trace-v5.10-3' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-trace:
  ring-buffer: Update the description for ring_buffer_wait
  ring-buffer: Return 0 on success from ring_buffer_resize()
2020-10-23 17:09:38 -07:00
b76f733c3f Merge tag 'acpi-5.10-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more ACPI updates from Rafael Wysocki:
 "These include an ACPICA code build fix related to recent GPE register
  access changes, a Kconfig cleanup related to the Dynamic Platform and
  Thremal Framework (DPTF) support, a reboot issue workaround, a debug
  module fix and a couple of janitorial changes.

  Specifics:

   - Fix ACPICA code build after recent changes related to accessing GPE
     registers (Rafael Wysocki).

   - Clean up DPTF part of the ACPI Kconfig (Rafael Wysocki).

   - Work around a reboot issue related to RESET_REG (Zhang Rui).

   - Prevent ACPI debug module from attemtping to run (and crashing)
     when ACPI is disabled (Jamie Iles).

   - Drop confusing comment from the ACPI processor driver (Alex Hung).

   - Drop a few unreachable break statements (Tom Rix)"

* tag 'acpi-5.10-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: utils: remove unreachable breaks
  ACPICA: Add missing type casts in GPE register access code
  ACPI: DPTF: Add ACPI_DPTF Kconfig menu
  ACPI: DPTF: Fix participant driver names
  ACPI: processor: remove comment regarding string _UID support
  ACPI: reboot: Avoid racing after writing to ACPI RESET_REG
  ACPI: debug: don't allow debugging when ACPI is disabled
2020-10-23 16:38:36 -07:00
41f762a15a Merge tag 'pm-5.10-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm
Pull more power management updates from Rafael Wysocki:
 "First of all, the adaptive voltage scaling (AVS) drivers go to new
  platform-specific locations as planned (this part was reported to have
  merge conflicts against the new arm-soc updates in linux-next).

  In addition to that, there are some fixes (intel_idle, intel_pstate,
  RAPL, acpi_cpufreq), the addition of on/off notifiers and idle state
  accounting support to the generic power domains (genpd) code and some
  janitorial changes all over.

  Specifics:

   - Move the AVS drivers to new platform-specific locations and get rid
     of the drivers/power/avs directory (Ulf Hansson).

   - Add on/off notifiers and idle state accounting support to the
     generic power domains (genpd) framework (Ulf Hansson, Lina Iyer).

   - Ulf will maintain the PM domain part of cpuidle-psci (Ulf Hansson).

   - Make intel_idle disregard ACPI _CST if it cannot use the data
     returned by that method (Mel Gorman).

   - Modify intel_pstate to avoid leaving useless sysfs directory
     structure behind if it cannot be registered (Chen Yu).

   - Fix domain detection in the RAPL power capping driver and prevent
     it from failing to enumerate the Psys RAPL domain (Zhang Rui).

   - Allow acpi-cpufreq to use ACPI _PSD information with Family 19 and
     later AMD chips (Wei Huang).

   - Update the driver assumptions comment in intel_idle and fix a
     kerneldoc comment in the runtime PM framework (Alexander Monakov,
     Bean Huo).

   - Avoid unnecessary resets of the cached frequency in the schedutil
     cpufreq governor to reduce overhead (Wei Wang).

   - Clean up the cpufreq core a bit (Viresh Kumar).

   - Make assorted minor janitorial changes (Daniel Lezcano, Geert
     Uytterhoeven, Hubert Jasudowicz, Tom Rix).

   - Clean up and optimize the cpupower utility somewhat (Colin Ian
     King, Martin Kaistra)"

* tag 'pm-5.10-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (23 commits)
  PM: sleep: remove unreachable break
  PM: AVS: Drop the avs directory and the corresponding Kconfig
  PM: AVS: qcom-cpr: Move the driver to the qcom specific drivers
  PM: runtime: Fix typo in pm_runtime_set_active() helper comment
  PM: domains: Fix build error for genpd notifiers
  powercap: Fix typo in Kconfig "Plance" -> "Plane"
  cpufreq: schedutil: restore cached freq when next_f is not changed
  acpi-cpufreq: Honor _PSD table setting on new AMD CPUs
  PM: AVS: smartreflex Move driver to soc specific drivers
  PM: AVS: rockchip-io: Move the driver to the rockchip specific drivers
  PM: domains: enable domain idle state accounting
  PM: domains: Add curly braces to delimit comment + statement block
  PM: domains: Add support for PM domain on/off notifiers for genpd
  powercap/intel_rapl: enumerate Psys RAPL domain together with package RAPL domain
  powercap/intel_rapl: Fix domain detection
  intel_idle: Ignore _CST if control cannot be taken from the platform
  cpuidle: Remove pointless stub
  intel_idle: mention assumption that WBINVD is not needed
  MAINTAINERS: Add section for cpuidle-psci PM domain
  cpufreq: intel_pstate: Delete intel_pstate sysfs if failed to register the driver
  ...
2020-10-23 16:27:03 -07:00
af995383eb Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull more SCSI updates from James Bottomley:
 "The set of core changes here is Christoph's submission path cleanups.

  These introduced a couple of regressions when first proposed so they
  got held over from the initial merge window pull request to give more
  testing time, which they've now had and Syzbot has confirmed the
  regression it detected is fixed.

  The other main changes are two driver updates (arcmsr, pm80xx) and
  assorted minor clean ups"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (38 commits)
  scsi: qla2xxx: Fix return of uninitialized value in rval
  scsi: core: Set sc_data_direction to DMA_NONE for no-transfer commands
  scsi: sr: Initialize ->cmd_len
  scsi: arcmsr: Update driver version to v1.50.00.02-20200819
  scsi: arcmsr: Add support for ARC-1886 series RAID controllers
  scsi: arcmsr: Fix device hot-plug monitoring timer stop
  scsi: arcmsr: Remove unnecessary syntax
  scsi: pm80xx: Driver version update
  scsi: pm80xx: Increase the number of outstanding I/O supported to 1024
  scsi: pm80xx: Remove DMA memory allocation for ccb and device structures
  scsi: pm80xx: Increase number of supported queues
  scsi: sym53c8xx_2: Fix sizeof() mismatch
  scsi: isci: Fix a typo in a comment
  scsi: qla4xxx: Fix inconsistent format argument type
  scsi: myrb: Fix inconsistent format argument types
  scsi: myrb: Remove redundant assignment to variable timeout
  scsi: bfa: Fix error return in bfad_pci_init()
  scsi: fcoe: Simplify the return expression of fcoe_sysfs_setup()
  scsi: snic: Simplify the return expression of svnic_cq_alloc()
  scsi: fnic: Simplify the return expression of vnic_wq_copy_alloc()
  ...
2020-10-23 16:19:02 -07:00
bd7e8c996f Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:

 - a new driver for ADC driven joysticks

 - a new Zintix touchscreen driver

 - enhancements to Intel SoC button array driver

 - support for F3A "function" in Synaptics RMI4 driver

 - assorted driver fixups

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: (29 commits)
  Input: Add MAINTAINERS entry for SiS i2c touch input driver
  Input: evdev - per-client waitgroups
  Input: synaptics - enable InterTouch for ThinkPad T14 Gen 1
  Input: synaptics - enable InterTouch for ThinkPad P1/X1E gen 2
  Input: synaptics-rmi4 - support bootloader v8 in f34v7
  Input: synaptics-rmi4 - add support for F3A
  Input: synaptics-rmi4 - rename f30_data to gpio_data
  Input: add zinitix touchscreen driver
  dt-bindings: input/touchscreen: add bindings for zinitix
  Input: joystick - add ADC attached joystick driver.
  dt-bindings: input: Add docs for ADC driven joystick
  Input: sun4i-ps2 - fix handling of platform_get_irq() error
  Input: twl4030_keypad - fix handling of platform_get_irq() error
  Input: omap4-keypad - fix handling of platform_get_irq() error
  Input: ep93xx_keypad - fix handling of platform_get_irq() error
  Input: stmfts - fix a & vs && typo
  Input: imx6ul_tsc - unify open/close and PM paths
  Input: imx6ul_tsc - clean up some errors in imx6ul_tsc_resume()
  Input: elants_i2c - fix typo for an attribute to show calibration count
  Input: elants_i2c - report resolution of ABS_MT_TOUCH_MAJOR by FW information.
  ...
2020-10-23 16:16:31 -07:00
c3a98c3ad5 crypto: x86/poly1305 - add back a needed assignment
One of the assignments that was removed by commit 4a0c1de64b ("crypto:
x86/poly1305 - Remove assignments with no effect") is actually needed,
since it affects the return value.

This fixes the following crypto self-test failure:

    alg: shash: poly1305-simd test failed (wrong result) on test vector 2, cfg="init+update+final aligned buffer"

Fixes: 4a0c1de64b ("crypto: x86/poly1305 - Remove assignments with no effect")
Signed-off-by: Eric Biggers <ebiggers@google.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2020-10-24 09:38:32 +11:00
71c1a49983 drm/i915/tgl/psr: Fix glitches when doing frontbuffer modifications
Writes to CURSURFLIVE in TGL are causing IOMMU errors and visual
glitches that are often reproduced when executing CPU intensive
workloads while a eDP 4K panel is attached.

Manually exiting PSR causes the frontbuffer to be updated without
glitches and the IOMMU errors are also gone but this comes at the cost
of less time with PSR active.

So using this workaround until this issue is root caused and a better
fix is found.

The current code is already ready to enable PSR after this exit if
there is not other frontbuffer modifications.

Adding a new if block in psr_force_hw_tracking_exit() instead of reuse
the else/gen8- block because the plan is to revert this workaround
as soon as a better solution is found.

Cc: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Tested-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Reviewed-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20201002231627.24528-1-jose.souza@intel.com
2020-10-23 14:29:17 -07:00
40a03b750b Merge tag 'sound-fix-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound fixes from Takashi Iwai:
 "Just a few additional small and trivial fixes"

* tag 'sound-fix-5.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda - Fix the return value if cb func is already registered
  ALSA: usb-audio: Line6 Pod Go interface requires static clock rate quirk
  ALSA: hda/ca0132: make some const arrays static, makes object smaller
  ALSA: sparc: dbri: fix repeated word 'the'
2020-10-23 13:59:05 -07:00
fc03b2d6a9 Merge tag 'drm-next-2020-10-23' of git://anongit.freedesktop.org/drm/drm
Pull more drm fixes from Dave Airlie:
 "This should be the last round of things for rc1, a bunch of i915
  fixes, some amdgpu, more font OOB fixes and one ttm fix just found
  reading code:

  fbcon/fonts:
   - Two patches to prevent OOB access

  ttm:
   - fix for evicition value range check

  amdgpu:
   - Sienna Cichlid fixes
   - MST manager resource leak fix
   - GPU reset fix

  amdkfd:
   - Luxmark fix for Navi1x

  i915:
   - Tweak initial DPCD backlight.enabled value (Sean)
   - Initialize reserved MOCS indices (Ayaz)
   - Mark initial fb obj as WT on eLLC machines to avoid rcu lockup (Ville)
   - Support parsing of oversize batches (Chris)
   - Delay execlists processing for TGL (Chris)
   - Use the active reference on the vma during error capture (Chris)
   - Widen CSB pointer (Chris)
   - Wait for CSB entries on TGL (Chris)
   - Fix unwind for scratch page allocation (Chris)
   - Exclude low patches of stolen memory (Chris)
   - Force VT'd workarounds when running as a guest OS (Chris)
   - Drop runtime-pm assert from vpgu io accessors (Chris)"

* tag 'drm-next-2020-10-23' of git://anongit.freedesktop.org/drm/drm: (31 commits)
  drm/amdgpu: correct the cu and rb info for sienna cichlid
  drm/amd/pm: remove the average clock value in sysfs
  drm/amd/pm: fix pp_dpm_fclk
  Revert drm/amdgpu: disable sienna chichlid UMC RAS
  drm/amd/pm: fix pcie information for sienna cichlid
  drm/amdkfd: Use same SQ prefetch setting as amdgpu
  drm/amd/swsmu: correct wrong feature bit mapping
  drm/amd/psp: Fix sysfs: cannot create duplicate filename
  drm/amd/display: Avoid MST manager resource leak.
  drm/amd/display: Revert "drm/amd/display: Fix a list corruption"
  drm/amdgpu: update golden setting for sienna_cichlid
  drm/amd/swsmu: add missing feature map for sienna_cichlid
  drm/amdgpu: correct the gpu reset handling for job != NULL case
  drm/amdgpu: add rlc iram and dram firmware support
  drm/amdgpu: add function to program pbb mode for sienna cichlid
  drm/i915: Drop runtime-pm assert from vgpu io accessors
  drm/i915: Force VT'd workarounds when running as a guest OS
  drm/i915: Exclude low pages (128KiB) of stolen from use
  drm/i915/gt: Onion unwind for scratch page allocation failure
  drm/ttm: fix eviction valuable range check.
  ...
2020-10-23 13:56:34 -07:00
9c5743dff4 x86/uaccess: fix code generation in put_user()
Quoting https://gcc.gnu.org/onlinedocs/gcc/Local-Register-Variables.html:

  You can define a local register variable and associate it with a
  specified register...

  The only supported use for this feature is to specify registers for
  input and output operands when calling Extended asm (see Extended
  Asm). This may be necessary if the constraints for a particular
  machine don't provide sufficient control to select the desired
  register.

On 32-bit x86, this is used to ensure that gcc will put an 8-byte value
into the %edx:%eax pair, while all other cases will just use the single
register %eax (%rax on x86-64).  While the _ASM_AX actually just expands
to "%eax", note this comment next to get_user() which does something
very similar:

 * The use of _ASM_DX as the register specifier is a bit of a
 * simplification, as gcc only cares about it as the starting point
 * and not size: for a 64-bit value it will use %ecx:%edx on 32 bits
 * (%ecx being the next register in gcc's x86 register sequence), and
 * %rdx on 64 bits.

However, getting this to work requires that there is no code between the
assignment to the local register variable and its use as an input to the
asm() which can possibly clobber any of the registers involved -
including evaluation of the expressions making up other inputs.

In the current code, the ptr expression used directly as an input may
cause such code to be emitted.  For example, Sean Christopherson
observed that with KASAN enabled and ptr being current->set_child_tid
(from chedule_tail()), the load of current->set_child_tid causes a call
to __asan_load8() to be emitted immediately prior to the __put_user_4
call, and Naresh Kamboju reports that various mmstress tests fail on
KASAN-enabled builds.

It's also possible to synthesize a broken case without KASAN if one uses
"foo()" as the ptr argument, with foo being some "extern u64 __user
*foo(void);" (though I don't know if that appears in real code).

Fix it by making sure ptr gets evaluated before the assignment to
__val_pu, and add a comment that __val_pu must be the last thing
computed before the asm() is entered.

Cc: Sean Christopherson <sean.j.christopherson@intel.com>
Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Tested-by: Naresh Kamboju <naresh.kamboju@linaro.org>
Fixes: d55564cfc2 ("x86: Make __put_user() generate an out-of-line call")
Signed-off-by: Rasmus Villemoes <linux@rasmusvillemoes.dk>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2020-10-23 13:44:24 -07:00
7d03ae4dc4 smb3: add some missing definitions from MS-FSCC
Add some structures and defines that were recently added to
the protocol documentation (see MS-FSCC sections 2.3.29-2.3.34).

Signed-off-by: Steve French <stfrench@microsoft.com>
2020-10-23 15:38:10 -05:00
6a87266c04 smb3: remove two unused variables
Fix two unused variables in commit
"add support for stat of WSL reparse points for special file types"

Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
2020-10-23 15:38:10 -05:00
2e4564b31b smb3: add support for stat of WSL reparse points for special file types
This is needed so when mounting to Windows we do not
misinterpret various special files created by Linux (WSL) as symlinks.
An earlier patch addressed readdir.  This patch fixes stat (getattr).

With this patch:
  File: /mnt1/char
  Size: 0          Blocks: 0          IO Block: 16384  character special file
Device: 34h/52d Inode: 844424930132069  Links: 1     Device type: 0,0
Access: (0755/crwxr-xr-x)  Uid: (    0/    root)   Gid: (    0/    root)
Access: 2020-10-21 17:46:51.839458900 -0500
Modify: 2020-10-21 17:46:51.839458900 -0500
Change: 2020-10-21 18:30:39.797358800 -0500
 Birth: -
  File: /mnt1/fifo
  Size: 0          Blocks: 0          IO Block: 16384  fifo
Device: 34h/52d Inode: 1125899906842722  Links: 1
Access: (0755/prwxr-xr-x)  Uid: (    0/    root)   Gid: (    0/    root)
Access: 2020-10-21 16:21:37.259249700 -0500
Modify: 2020-10-21 16:21:37.259249700 -0500
Change: 2020-10-21 18:30:39.797358800 -0500
 Birth: -
  File: /mnt1/block
  Size: 0          Blocks: 0          IO Block: 16384  block special file
Device: 34h/52d Inode: 844424930132068  Links: 1     Device type: 0,0
Access: (0755/brwxr-xr-x)  Uid: (    0/    root)   Gid: (    0/    root)
Access: 2020-10-21 17:10:47.913103200 -0500
Modify: 2020-10-21 17:10:47.913103200 -0500
Change: 2020-10-21 18:30:39.796725500 -0500
 Birth: -

without the patch all show up incorrectly as symlinks with annoying "operation not supported error also returned"
  File: /mnt1/charstat: cannot read symbolic link '/mnt1/char': Operation not supported

  Size: 0          Blocks: 0          IO Block: 16384  symbolic link
Device: 34h/52d Inode: 844424930132069  Links: 1
Access: (0000/l---------)  Uid: (    0/    root)   Gid: (    0/    root)
Access: 2020-10-21 17:46:51.839458900 -0500
Modify: 2020-10-21 17:46:51.839458900 -0500
Change: 2020-10-21 18:30:39.797358800 -0500
 Birth: -
  File: /mnt1/fifostat: cannot read symbolic link '/mnt1/fifo': Operation not supported

  Size: 0          Blocks: 0          IO Block: 16384  symbolic link
Device: 34h/52d Inode: 1125899906842722  Links: 1
Access: (0000/l---------)  Uid: (    0/    root)   Gid: (    0/    root)
Access: 2020-10-21 16:21:37.259249700 -0500
Modify: 2020-10-21 16:21:37.259249700 -0500
Change: 2020-10-21 18:30:39.797358800 -0500
 Birth: -
  File: /mnt1/blockstat: cannot read symbolic link '/mnt1/block': Operation not supported

  Size: 0          Blocks: 0          IO Block: 16384  symbolic link
Device: 34h/52d Inode: 844424930132068  Links: 1
Access: (0000/l---------)  Uid: (    0/    root)   Gid: (    0/    root)
Access: 2020-10-21 17:10:47.913103200 -0500
Modify: 2020-10-21 17:10:47.913103200 -0500
Change: 2020-10-21 18:30:39.796725500 -0500

Signed-off-by: Steve French <stfrench@microsoft.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
2020-10-23 15:38:10 -05:00
3aa8d45f46 drm/amd/display: Fixed panic during seamless boot.
[why]
get_pixel_clk_frequency_100hz is undefined in clock_source_funcs.

[how]
set function pointer: ".get_pixel_clk_frequency_100hz = get_pixel_clk_frequency_100hz"

Signed-off-by: David Galiffi <David.Galiffi@amd.com>
Reviewed-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-10-23 15:48:23 -04:00
d836917da7 drm/amdgpu: Fix size calculation when init onchip memory
Size is page count here.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: xinhui pan <xinhui.pan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-10-23 15:40:46 -04:00
4d154b85f3 drm/amdgpu_dm: fix a typo
dm_comressor_info -> dm_compressor_info

The kernel-doc markup is right, but the struct itself
and their references contain a typo.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-10-23 15:33:48 -04:00
c45dd3bda1 drm/amdgpu: fix some kernel-doc markups
Some functions have different names between their prototypes
and the kernel-doc markup.

Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-10-23 15:33:48 -04:00
6e3cd2a9a6 amdgpu: fix a few kernel-doc markup issues
A kernel-doc markup can't be mixed with a random comment,
as it causes parsing problems.

While here, change an invalid kernel-doc markup into
a common comment.

Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-10-23 15:33:48 -04:00
73bf5cad26 drm/amdgpu: During compute disable GFXOFF for Sienna_Cichlid
Workaround to fix the soft hang observed in certain compute
applications.

Acked-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-10-23 15:33:48 -04:00
df0e4831c3 drm/amdgpu: don't map BO in reserved region
2MB area is reserved at top inside VM.

Suggested-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Madhav Chauhan <madhav.chauhan@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-10-23 15:33:48 -04:00
52f2e83e2f drm/amdgpu/display: add MALL support (v2)
Enable Memory Access at Last Level (MALL) feature for display.

v2: squash in 64 bit division fixes

Signed-off-by: Bhawanpreet Lakha <Bhawanpreet.Lakha@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-10-23 15:33:48 -04:00
4005809bb1 drm/amdgpu: add support to configure MALL for sienna_cichlid (v2)
Enable Memory Access at Last Level (MALL) feature for sienna_cichlid.

v2: drop module option.  We need to add UAPI so userspace can
request MALL per buffer.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-10-23 15:33:48 -04:00
d02792041c drm/amdgpu: add GC 10.3 NOALLOC registers
This adds the NOALLOC registers.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-10-23 15:33:47 -04:00
8d96a590ed drm/amdgpu: remove unneeded break
A break is not needed if it is preceded by a return or break

Reviewed-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Tom Rix <trix@redhat.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-10-23 15:33:47 -04:00
8a5223b930 drm/amdgpu: add DID for navi10 blockchain SKU
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Guchun Chen <guchun.chen@amd.com>
Signed-off-by: Tianci.Yin <tianci.yin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-10-23 15:33:47 -04:00
aa5375c555 drm/amdgpu: disable DCN and VCN for navi10 blockchain SKU(v3)
The blockchain SKU has no display and video support, remove them.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Tianci.Yin <tianci.yin@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-10-23 15:33:47 -04:00
15df286d43 drm/amdgpu: correct the cu and rb info for sienna cichlid
Skip disabled sa to correct the cu_info and active_rbs for sienna cichlid.

Signed-off-by: Likun Gao <Likun.Gao@amd.com>
Reviewed-by: Hawking Zhang <Hawking.Zhang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-10-23 15:31:05 -04:00
891bacb835 drm/amd/pm: remove the average clock value in sysfs
if it's fine-grained clock dpm, remove the average clock value and
reflects the real clock.

Signed-off-by: Kenneth Feng <kenneth.feng@amd.com>
Reviewed-by: Likun Gao <Likun.Gao@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2020-10-23 15:30:49 -04:00
0d63c148d6 io_uring: simplify __io_queue_sqe()
Restructure __io_queue_sqe() so it follows simple if/else if/else
control flow. It's more readable and removes extra goto/labels.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-10-23 13:07:12 -06:00
9aaf354352 io_uring: simplify nxt propagation in io_queue_sqe
Don't overuse goto's, complex control flow doesn't make compilers happy
and makes code harder to read.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-10-23 13:07:12 -06:00
feaadc4fc2 io_uring: don't miss setting IO_WQ_WORK_CONCURRENT
Set IO_WQ_WORK_CONCURRENT for all REQ_F_FORCE_ASYNC requests, do that in
that is also looks better.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-10-23 13:07:11 -06:00
c9abd7ad83 io_uring: don't defer put of cancelled ltimeout
Inline io_link_cancel_timeout() and __io_kill_linked_timeout() into
io_kill_linked_timeout(). That allows to easily move a put of a cancelled
linked timeout out of completion_lock and to not deferring it. It is also
much more readable when not scattered across three different functions.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-10-23 13:07:11 -06:00
cdfcc3ee04 io_uring: always clear LINK_TIMEOUT after cancel
Move REQ_F_LINK_TIMEOUT clearing out of __io_kill_linked_timeout()
because it might return early and leave the flag set. It's not a
problem, but may be confusing.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-10-23 13:07:11 -06:00
ac877d2edd io_uring: don't adjust LINK_HEAD in cancel ltimeout
An armed linked timeout can never be a head of a link, so we don't need
to clear REQ_F_LINK_HEAD for it.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-10-23 13:07:11 -06:00
e08102d507 io_uring: remove opcode check on ltimeout kill
__io_kill_linked_timeout() already checks for REQ_F_LTIMEOUT_ACTIVE and
it's set only for linked timeouts. No need to verify next request's
opcode.

Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
2020-10-23 13:07:11 -06:00