As I currently understand it, this is related to features we have no
support for as of yet.

In theory, this change should be a noop, just without the warning.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Required for ACR.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Turing has its SEC2 instance in an alternate location, and this avoids
needing to duplicate the code here for it.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Required to run VPR scrubber binary as part of secboot.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Turing has its NVDEC instances in an alternate location.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

We need this for Turing ACR, but it's present from Volta onwards.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

So we're able to connect fault/interrupt handling to the GSP subdev.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Will be using this in upcoming changes to avoid the need for entirely
new subdevs to deal with Turing register moves.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Exact meaning of the acronym is unknown, but we need this for Turing ACR.
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

The NOUVEAU_GETPARAM_PCI_DEVICE case is missing a break statement and falls
through to the following NOUVEAU_GETPARAM_BUS_TYPE case and may end up
re-assigning the getparam->value to an undesired value. Fix this by adding
in the missing break.

Detected by CoverityScan, CID#1460507 ("Missing break in switch")

Fixes: 359088d5 ("drm/nouveau: remove trivial cases of nvxx_device() usage")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.

This patch fixes the following warning:

drivers/gpu/drm/nouveau/nouveau_bo.c:1434:53: warning: this statement may fall through [-Wimplicit-fallthrough=]

Warning level 3 was used: -Wimplicit-fallthrough=3

This patch is part of the ongoing efforts to enabling
-Wimplicit-fallthrough.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

This is much louder then we want. VCPI allocation failures are quite
normal, since they will happen if any part of the modesetting process is
interrupted by removing the DP MST topology in question. So just print a
debugging message on VCPI failures instead.
Signed-off-by: Lyude Paul <lyude@redhat.com>
Fixes: f479c0ba ("drm/nouveau/kms/nv50: initial support for DP 1.2 multi-stream")
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: dri-devel@lists.freedesktop.org
Cc: nouveau@lists.freedesktop.org
Cc: <stable@vger.kernel.org> # v4.10+
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Currently the uninitialized values in the array reply are printed out
when exec is false and nvkm_pmu_send has not updated the array. Avoid
confusion by only dumping out these values if they have been actually
updated.

Detected by CoverityScan, CID#1271291 ("Uninitialized scaler variable")
Fixes: ebb58dc2 ("drm/nouveau/pmu: rename from pwr (no binary change)")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Currently, the expression for calculating RON is always going to result
in zero no matter the value of ram->mr[1] because the ! operator has
higher precedence than the shift >> operator.  I believe the missing
parentheses around the expression before appying the ! operator will
result in the desired result.

[ Note, not tested ]

Detected by CoveritScan, CID#1324005 ("Operands don't affect result")

Fixes: c25bf7b6 ("drm/nouveau/bios/ramcfg: Separate out RON pull value")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Don't populate the array vsoff on the stack but instead make it
static. Makes the object code smaller by 67 bytes:

Before:
   text	   data	    bss	    dec	    hex	filename
   5753	    112	      0	   5865	   16e9	.../nouveau/nvkm/subdev/bios/dp.o

After:
   text	   data	    bss	    dec	    hex	filename
   5622	    176	      0	   5798	   16a6	.../nouveau/nvkm/subdev/bios/dp.o

(gcc version 8.2.0 x86_64)
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

GF117 appears to use the same register as GK104 (but still with the
general Fermi readout mechanism).

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=108980Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>

Backmerging for nouveau and imx that needed some fixes for next pulls.
Signed-off-by: Dave Airlie <airlied@redhat.com>

Pull EFI fixes from Ingo Molnar:
 "This tree reverts a GICv3 commit (which was broken) and fixes it in
  another way, by adding a memblock build-time entries quirk for ARM64"

* 'efi-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  efi/arm: Revert "Defer persistent reservations until after paging_init()"
  arm64, mm, efi: Account for GICv3 LPI tables in static memblock reserve table

Pull x86 fixes from Ingo Molnar:
 "Three changes:

   - An UV fix/quirk to pull UV BIOS calls into the efi_runtime_lock
     locking regime. (This done by aliasing __efi_uv_runtime_lock to
     efi_runtime_lock, which should make the quirk nature obvious and
     maintain the general policy that the EFI lock (name...) isn't
     exposed to drivers.)

   - Our version of MAGA: Make a.out Great Again.

   - Add a new Intel model name enumerator to an upstream header to help
     reduce dependencies going forward"

* 'x86-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/platform/UV: Use efi_runtime_lock to serialise BIOS calls
  x86/CPU: Add Icelake model number
  x86/a.out: Clear the dump structure initially

Pull perf fixes from Ingo Molnar:
 "Two fixes on the kernel side: fix an over-eager condition that failed
  larger perf ring-buffer sizes, plus fix crashes in the Intel BTS code
  for a corner case, found by fuzzing"

* 'perf-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/core: Fix impossible ring-buffer sizes warning
  perf/x86: Add check_period PMU callback

Pull powerpc fix from Michael Ellerman:
 "Just one fix, for pgd/pud_present() which were broken on big endian
  since v4.20, leading to possible data corruption.

  Thanks to: Aneesh Kumar K.V., Erhard F., Jan Kara"

* tag 'powerpc-5.0-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/64s: Fix possible corruption on big endian due to pgd/pud_present()

Pull arch/csky fixes from Guo Ren:
 "Here are some fixup patches for 5.0-rc6"

* tag 'csky-for-linus-5.0-rc6' of git://github.com/c-sky/csky-linux:
  csky: Fixup dead loop in show_stack
  csky: Fixup io-range page attribute for mmap("/dev/mem")
  csky: coding convention: Use task_stack_page
  csky: Fixup wrong pt_regs size
  csky: Fixup _PAGE_GLOBAL bit for 610 tlb entry

Pull i2c fixes from Wolfram Sang:
 "Two more driver bugfixes"

* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
  i2c: bcm2835: Clear current buffer pointers and counts after a transfer
  i2c: cadence: Fix the hold bit setting

Pull input fixes from Dmitry Torokhov:

 - tweaks to Elan drivers (both PS/2 and I2C) to support new devices.
   Also revert of one of IDs as that device should really be driven by
   i2c-hid + hid-multitouch

 - a few drivers have been switched to set_brightness_blocking() call
   because they either were sleeping the their set_brightness()
   implementation or used workqueue but were not canceling it on unbind.

 - ps2-gpio and matrix_keypad needed to [properly] flush their works to
   avoid potential use-after-free on unbind.

 - other miscellaneous fixes.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: elan_i2c - add ACPI ID for touchpad in Lenovo V330-15ISK
  Input: st-keyscan - fix potential zalloc NULL dereference
  Input: apanel - switch to using brightness_set_blocking()
  Revert "Input: elan_i2c - add ACPI ID for touchpad in ASUS Aspire F5-573G"
  Input: qt2160 - switch to using brightness_set_blocking()
  Input: matrix_keypad - use flush_delayed_work()
  Input: ps2-gpio - flush TX work when closing port
  Input: cap11xx - switch to using set_brightness_blocking()
  Input: elantech - enable 3rd button support on Fujitsu CELSIUS H780
  Input: bma150 - register input device after setting private data
  Input: pwm-vibra - stop regulator after disabling pwm, not before
  Input: pwm-vibra - prevent unbalanced regulator
  Input: snvs_pwrkey - allow selecting driver for i.MX 7D

Pull KVM fixes from Paolo Bonzini:
 "A somewhat bigger ARM update, and the usual smattering of x86 bug
  fixes"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  kvm: vmx: Fix entry number check for add_atomic_switch_msr()
  KVM: x86: Recompute PID.ON when clearing PID.SN
  KVM: nVMX: Restore a preemption timer consistency check
  x86/kvm/nVMX: read from MSR_IA32_VMX_PROCBASED_CTLS2 only when it is available
  KVM: arm64: Forbid kprobing of the VHE world-switch code
  KVM: arm64: Relax the restriction on using stage2 PUD huge mapping
  arm: KVM: Add missing kvm_stage2_has_pmd() helper
  KVM: arm/arm64: vgic: Always initialize the group of private IRQs
  arm/arm64: KVM: Don't panic on failure to properly reset system registers
  arm/arm64: KVM: Allow a VCPU to fully reset itself
  KVM: arm/arm64: Reset the VCPU without preemption and vcpu state loaded
  arm64: KVM: Don't generate UNDEF when LORegion feature is present
  KVM: arm/arm64: vgic: Make vgic_cpu->ap_list_lock a raw_spinlock
  KVM: arm/arm64: vgic: Make vgic_dist->lpi_list_lock a raw_spinlock
  KVM: arm/arm64: vgic: Make vgic_irq->irq_lock a raw_spinlock

This adds ELAN0617 to the ACPI table to support Elan touchpad found in
Lenovo V330-15ISK.
Signed-off-by: Mauro Ciancio <mauro@acadeu.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

This patch fixes the following static checker warning:

drivers/input/keyboard/st-keyscan.c:156 keyscan_probe()
error: potential zalloc NULL dereference: 'keypad_data->input_dev'
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Gabriel Fernandez <gabriel.fernandez@st.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Now that LEDs core allows "blocking" flavor of "set brightness" method we
can use it and get rid of private work item. As a bonus, we are no longer
forgetting to cancel it when we unbind the driver.
Reviewed-by: Sven Van Asbroeck <TheSven73@gmail.com>
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

In v4.20 we changed our pgd/pud_present() to check for _PAGE_PRESENT
rather than just checking that the value is non-zero, e.g.:

  static inline int pgd_present(pgd_t pgd)
  {
 -       return !pgd_none(pgd);
 +       return (pgd_raw(pgd) & cpu_to_be64(_PAGE_PRESENT));
  }

Unfortunately this is broken on big endian, as the result of the
bitwise & is truncated to int, which is always zero because
_PAGE_PRESENT is 0x8000000000000000ul. This means pgd_present() and
pud_present() are always false at compile time, and the compiler
elides the subsequent code.

Remarkably with that bug present we are still able to boot and run
with few noticeable effects. However under some work loads we are able
to trigger a warning in the ext4 code:

  WARNING: CPU: 11 PID: 29593 at fs/ext4/inode.c:3927 .ext4_set_page_dirty+0x70/0xb0
  CPU: 11 PID: 29593 Comm: debugedit Not tainted 4.20.0-rc1 #1
  ...
  NIP .ext4_set_page_dirty+0x70/0xb0
  LR  .set_page_dirty+0xa0/0x150
  Call Trace:
   .set_page_dirty+0xa0/0x150
   .unmap_page_range+0xbf0/0xe10
   .unmap_vmas+0x84/0x130
   .unmap_region+0xe8/0x190
   .__do_munmap+0x2f0/0x510
   .__vm_munmap+0x80/0x110
   .__se_sys_munmap+0x14/0x30
   system_call+0x5c/0x70

The fix is simple, we need to convert the result of the bitwise & to
an int before returning it.

Thanks to Erhard, Jan Kara and Aneesh for help with debugging.

Fixes: da7ad366 ("powerpc/mm/book3s: Update pmd_present to look at _PAGE_PRESENT bit")
Cc: stable@vger.kernel.org # v4.20+
Reported-by: Erhard F. <erhard_f@mailbox.org>
Reviewed-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>