Commit Graph

875091 Commits

Author SHA1 Message Date
Andrey Grodzovsky
7c55adb0a9 Revert "drm/amdgpu: dont schedule jobs while in reset"
This reverts commit 89b3d86403.

We will do a proper fix in next patch.

Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-11-07 18:08:07 -05:00
Andrey Grodzovsky
83a7772ba2 drm/sched: Use completion to wait for sched->thread idle v2.
Removes thread park/unpark hack from drm_sched_entity_fini and
by this fixes reactivation of scheduler thread while the thread
is supposed to be stopped.

v2: Per sched entity completion.

Signed-off-by: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Suggested-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-11-07 18:08:07 -05:00
Jonathan Kim
cb5932f866 drm/amdgpu: fix vega20 pstate status change
vega20 only requires all devices be set to same pstate level for low
pstate and not high.

Signed-off-by: Jonathan Kim <Jonathan.Kim@amd.com>
Reviewed-by: Evan Quan <Evan.Quan@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-11-07 18:08:07 -05:00
Kevin Wang
2af8153126 drm/amdgpu: fix sysfs interface pcie_replay_count error on navi asic
the asic callback function of get_pcie_replay_count is not implement on navi asic,
it will cause null pinter error when read this interface.

Signed-off-by: Kevin Wang <kevin1.wang@amd.com>
Reviewed-by: Kent Russell <kent.russell@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-11-07 18:08:07 -05:00
Emily Deng
e31dcdcfab drm/amdgpu: Need to disable msix when unloading driver
For driver reload test, it will report "can't enable
MSI (MSI-X already enabled)".

Signed-off-by: Emily Deng <Emily.Deng@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-11-07 18:08:07 -05:00
Oak Zeng
f6baa07497 drm/amdgpu: Add comments to gmc structure
Explain fields like aper_base, agp_start etc. The definition
of those fields are confusing as they are from different view
(CPU or GPU). Add comments for easier understand.

Signed-off-by: Oak Zeng <Oak.Zeng@amd.com>
Reviewed-by: Alex Deucher <Alex.Deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2019-11-07 18:08:07 -05:00
Matt Roper
5e19c0b062 drm/i915: Expand documentation for gen12 DP pre-enable sequence
Rather than just specifying the bullet numbers from the bspec (e.g.,
"4.b") actually include the description of what the bspec wants us to
do.  Steps can be renumbered or moved so including the description will
help us match the code up to the spec.  Plus if we add support for new
platforms, some of the steps may be added/removed so more descriptive
comments will be useful for ensuring all of the bspec requirements are
met.

Cc: José Roberto de Souza <jose.souza@intel.com>
Cc: Lucas De Marchi <lucas.demarchi@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191107174527.11165-1-matthew.d.roper@intel.com
Reviewed-by: Lucas De Marchi <lucas.demarchi@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
2019-11-07 14:23:09 -08:00
Chris Wilson
1d1d0af679 drm/i915/selftests: Verify mmap_gtt revocation on unbinding
Whenever, we unbind (or change fence registers) on an object, we must
revoke any and all mmap_gtt using the previous bindings. Those user PTEs
point at the GGTT which know points into a new object, the wrong object.
Ergo, those PTEs must be cleared so that any user access provokes a new
page fault.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Abdiel Janulgue <abdiel.janulgue@linux.intel.com>
Reviewed-by: Abdiel Janulgue <abdiel.janulgue@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191107180601.30815-5-chris@chris-wilson.co.uk
2019-11-07 21:23:52 +00:00
Chris Wilson
6fedafacae drm/i915/selftests: Wrap vm_mmap() around GEM objects
Provide a utility function to create a vma corresponding to an mmap() of
our device. And use it to exercise the equivalent of userspace
performing a GTT mmap of our objects.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Abdiel Janulgue <abdiel.janulgue@linux.intel.com>
Reviewed-by: Abdiel Janulgue <abdiel.janulgue@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191107180601.30815-4-chris@chris-wilson.co.uk
2019-11-07 21:22:58 +00:00
Chris Wilson
85ca528ed7 drm/i915/selftests: Replace mock_file hackery with drm's true fake
As drm now exports a method to create an anonymous struct file around a
drm_device for internal use, make use of it to avoid our horrible hacks.

Danial suggested that the mock_file_put() wrapper was suitable for
drm-core, along with the mock_drm_getfile() [and that the vestigal
mock_drm_file() in this patch should perhaps be the drm interface
itself]. However, the eventual goal is to remove the mock_drm_file() and
use the struct file and fput() directly, in this patch we take a simple
transition in that direction.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20191107180601.30815-3-chris@chris-wilson.co.uk
2019-11-07 21:22:16 +00:00
Chris Wilson
4748aa16d5 drm: Expose a method for creating anonymous struct file around drm_minor
Sometimes we need to create a struct file to wrap a drm_device, as it
the user were to have opened /dev/dri/card0 but to do so anonymously
(i.e. for internal use). Provide a utility method to create a struct
file with the drm_device->driver.fops, that wrap the drm_device.

v2: Restrict usage to selftests

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20191107180601.30815-2-chris@chris-wilson.co.uk
2019-11-07 21:22:15 +00:00
Chris Wilson
6349120ddc drm: Move EXPORT_SYMBOL_FOR_TESTS_ONLY under a separate Kconfig
Currently, we only export symbols for drm-selftests which are either
compiled as modules or into the main drm builtin. However, if we want to
export symbols from drm.ko for the drivers' selftests, we require a
means of controlling that export separately. So we add a new Kconfig to
determine whether or not the EXPORT_SYMBOL_FOR_TESTS_ONLY() takes
effect.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20191107180601.30815-1-chris@chris-wilson.co.uk
2019-11-07 21:22:15 +00:00
Linus Torvalds
847120f859 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid
Pull HID fixes from Jiri Kosina:
 "Two fixes for the HID subsystem:

   - regression fix for i2c-hid power management (Hans de Goede)

   - signed vs unsigned API fix for Wacom driver (Jason Gerecke)"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid:
  HID: wacom: generic: Treat serial number and related fields as unsigned
  HID: i2c-hid: Send power-on command after reset
2019-11-07 11:54:54 -08:00
Chris Wilson
27dbae8f36 drm/i915/gem: Safely acquire the ctx->vm when copying
As we read the ctx->vm unlocked before cloning/exporting, we should
validate our reference is correct before returning it. We already do for
clone_vm() but were not so strict around get_ppgtt().

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Niranjana Vishwanathapura <niranjana.vishwanathapura@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191106091312.12921-1-chris@chris-wilson.co.uk
2019-11-07 17:05:33 +00:00
Jeff Layton
ff29fde84d ceph: return -EINVAL if given fsc mount option on kernel w/o support
If someone requests fscache on the mount, and the kernel doesn't
support it, it should fail the mount.

[ Drop ceph prefix -- it's provided by pr_err. ]

Signed-off-by: Jeff Layton <jlayton@kernel.org>
Reviewed-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2019-11-07 18:03:23 +01:00
Chris Wilson
7caaed94ea drm/i915/gt: Defer engine registration until fully initialised
Only add the engine to the available set of uabi engines once it has
been fully initialised and we know we want it in the public set.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Michał Wajdeczko <michal.wajdeczko@intel.com>
Cc: Andi Shyti <andi.shyti@intel.com>
Acked-by: Andi Shyti <andi.shyti@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191107081252.10542-17-chris@chris-wilson.co.uk
2019-11-07 16:28:44 +00:00
Wei Yongjun
e39fcaef7e staging: Fix error return code in vboxsf_fill_super()
Fix to return negative error code -ENOMEM from the error handling
case instead of 0, as done elsewhere in this function.

Fixes: df4028658f ("staging: Add VirtualBox guest shared folder (vboxsf) support")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20191106115954.114678-1-weiyongjun1@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-07 16:29:18 +01:00
Colin Ian King
94fed40410 staging: vboxsf: fix dereference of pointer dentry before it is null checked
Currently the pointer dentry is being dereferenced before it is
being null checked.  Fix this by only dereferencing dentry once
we know it is not null.

Addresses-Coverity: ("Dereference before null check")
Fixes: df4028658f ("staging: Add VirtualBox guest shared folder (vboxsf) support")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: https://lore.kernel.org/r/20191105175108.79824-1-colin.king@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-07 16:29:17 +01:00
YueHaibing
32e9f6cb07 staging: vboxsf: Remove unused including <linux/version.h>
Remove including <linux/version.h> that don't need it.

Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Link: https://lore.kernel.org/r/20191107015923.100013-1-yuehaibing@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-11-07 16:29:17 +01:00
Ville Syrjälä
0ccc42a2fd drm/i915: Preload LUTs if the hw isn't currently using them
The LUTs are single buffered so in order to program them without
tearing we'd have to do it during vblank (actually to be 100%
effective it has to happen between start of vblank and frame start).
We have no proper mechanism for that at the moment so we just
defer loading them after the vblank waits have happened. That
is not quite sufficient (especially when committing multiple pipes
whose vblanks don't line up) so the LUT load will often leak into
the following frame causing tearing.

However in case the hardware wasn't previously using the LUT we
can preload it before setting the enable bit (which is double
buffered so won't tear). Let's determine if we can do such
preloading and make it happen. Slight variation between the
hardware requires some platforms specifics in the checks.

Hans is seeing ugly colored flash on VLV/CHV macchines (GPD win
and Asus T100HA) when the gamma LUT gets loaded for the first
time as the BIOS has left some junk in the LUT memory.

v2: Deal with uapi vs. hw crtc state split
    s/GCM/CGM/ typo fix

Cc: Hans de Goede <hdegoede@redhat.com>
Fixes: 051a6d8d3c ("drm/i915: Move LUT programming to happen after vblank waits")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191030190815.7359-1-ville.syrjala@linux.intel.com
Tested-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
2019-11-07 15:28:36 +02:00
Jani Nikula
f4dea1aaa9 drm/dsi: add helpers for DSI compression mode and PPS packets
Add helper functions for sending the DSI compression mode and picture
parameter set data type packets. For the time being, limit the support
to using VESA DSC 1.1 and the default PPS. This may need updating if the
need arises for proprietary compression or non-default PPS, however keep
it simple for starters.

v2: Add missing EXPORT_SYMBOL

Cc: Vandita Kulkarni <vandita.kulkarni@intel.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191028150047.22048-5-jani.nikula@intel.com
2019-11-07 15:00:16 +02:00
Jani Nikula
97ecec8b7f drm/dsi: rename MIPI_DCS_SET_PARTIAL_AREA to MIPI_DCS_SET_PARTIAL_ROWS
The DCS command has been named SET_PARTIAL_ROWS in the DCS spec since
v1.02, for more than a decade. Rename the enumeration to match the spec.

v2: add comment about the rename (David Lechner)

Cc: David Lechner <david@lechnology.com>
Cc: Vandita Kulkarni <vandita.kulkarni@intel.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191028150047.22048-4-jani.nikula@intel.com
2019-11-07 14:59:56 +02:00
Jani Nikula
0676e24f62 drm/dsi: add missing DSI DCS commands
Update from the DCS specification.

Cc: Vandita Kulkarni <vandita.kulkarni@intel.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191028150047.22048-3-jani.nikula@intel.com
2019-11-07 14:59:41 +02:00
Jani Nikula
5586363575 drm/dsi: add missing DSI data types
Add execute queue and compressed pixel stream packet data types for
completeness.

Cc: Vandita Kulkarni <vandita.kulkarni@intel.com>
Reviewed-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191028150047.22048-2-jani.nikula@intel.com
2019-11-07 14:59:11 +02:00
Jani Nikula
e85c659225 drm/dsi: clean up DSI data type definitions
Rename picture parameter set (it's a long packet, not a long write) and
compression mode (it's not a DCS command) enumerations according to the
DSI specification. Order the types according to the spec. Use tabs
instead of spaces for indentation. Use all lower case for hex.

Cc: Vandita Kulkarni <vandita.kulkarni@intel.com>
Reviewed-by: Vandita Kulkarni <vandita.kulkarni@intel.com>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191028150047.22048-1-jani.nikula@intel.com
2019-11-07 14:58:16 +02:00
Takashi Iwai
df37d941c4 ASoC: Fixes for v5.4
These are a collection of fixes since v5.4-rc4 that have accumilated,
 they're all driver specific and there's nothing major in here so it's
 probably not essential to actually send them but I'll leave that call to
 you.
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Merge tag 'asoc-fix-v5.4-rc6' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v5.4

These are a collection of fixes since v5.4-rc4 that have accumilated,
they're all driver specific and there's nothing major in here so it's
probably not essential to actually send them but I'll leave that call to
you.
2019-11-07 13:52:17 +01:00
Ramalingam C
9e678fc9ba drm/i915: FB backing gem obj should reside in LMEM
If Local memory is supported by hardware, we want framebuffer backing
gem objects from local memory.

if the backing obj is not from LMEM, pin_to_display is failed.

v2:
  memory regions are correctly assigned to obj->memory_regions [tvrtko]
  migration failure is reported as debug log [Tvrtko]
v3:
  Migration is dropped. only error is reported [Daniel]
  mem region check is move to pin_to_display [Chris]
v4:
  s/dev_priv/i915 [chris]
v5:
  i915_gem_object_is_lmem is used for detecting the obj mem type. [Matt]

cc: Matthew Auld <matthew.auld@intel.com>
Signed-off-by: Ramalingam C <ramalingam.c@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: https://patchwork.freedesktop.org/patch/msgid/20191105144414.30470-1-ramalingam.c@intel.com
2019-11-07 10:55:40 +00:00
Chris Wilson
2b0a4fc25a drm/i915: Leave the aliasing-ppgtt size alone
The hidden aliasing-ppgtt's size is never revealed, as we only inspect
the front GTT when engaged. However, we were "fixing" the hidden ppgtt
to match, with the net result that we ended up leaking the unused
portion on Braswell were we preallocated the entire set of top level
PDP, see gen8_preallocate_top_level_pdp().

[   26.025364] DMA-API: pci 0000:00:02.0: device driver has pending DMA allocations while released from device [count=2]
[   26.025364] One of leaked entries details: [device address=0x0000000230778000] [size=4096 bytes] [mapped with DMA_BIDIRECTIONAL] [mapped as single]
[   26.025683] WARNING: CPU: 0 PID: 415 at kernel/dma/debug.c:894 dma_debug_device_change+0x1a4/0x1f0
[   26.025905] Modules linked in: i915(E-) intel_powerclamp(E) nls_ascii(E) nls_cp437(E) crct10dif_pclmul(E) crc32_pclmul(E) vfat(E) crc32c_intel(E) fat(E) ghash_clmulni_intel(E) prime_numbers(E) intel_gtt(E) i2c_algo_bit(E) efi_pstore(E) drm_kms_helper(E) syscopyarea(E) sysfillrect(E) sysimgblt(E) fb_sys_fops(E) evdev(E) drm(E) aesni_intel(E) glue_helper(E) crypto_simd(E) cryptd(E) intel_cstate(E) sg(E) efivars(E) pcspkr(E) video(E) button(E) efivarfs(E) ip_tables(E) x_tables(E) autofs4(E) sd_mod(E) lpc_ich(E) ahci(E) mfd_core(E) i2c_i801(E) libahci(E) i2c_designware_pci(E) i2c_designware_core(E)
[   26.026613] CPU: 0 PID: 415 Comm: rmmod Tainted: G            E     5.4.0-rc6+ #25
[   26.026837] Hardware name:  /, BIOS PYBSWCEL.86A.0027.2015.0507.1758 05/07/2015
[   26.027080] RIP: 0010:dma_debug_device_change+0x1a4/0x1f0
[   26.027319] Code: 89 54 24 08 e8 ad 60 62 00 48 8b 54 24 08 48 89 c6 41 57 4d 89 e9 49 89 d8 44 89 f1 41 54 48 c7 c7 e0 61 06 82 e8 c1 aa f5 ff <0f> 0b 5a 59 48 83 3c 24 00 0f 85 97 26 00 00 8b 05 77 47 92 01 85
[   26.027600] RSP: 0018:ffff888228d2fcc8 EFLAGS: 00010282
[   26.027831] RAX: 0000000000000000 RBX: 0000000230778000 RCX: 0000000000000000
[   26.028053] RDX: 0000000000000001 RSI: 0000000000000008 RDI: ffffed10451a5f8f
[   26.028279] RBP: ffff88823480c0b0 R08: 0000000000000001 R09: ffffed1046e83eb1
[   26.028500] R10: ffffed1046e83eb0 R11: ffff88823741f587 R12: ffffffff82067340
[   26.028725] R13: 0000000000001000 R14: 0000000000000002 R15: ffffffff82067480
[   26.028952] FS:  00007fdf3ed174c0(0000) GS:ffff888237400000(0000) knlGS:0000000000000000
[   26.029185] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[   26.029405] CR2: 000055e211109030 CR3: 0000000230139000 CR4: 00000000001006f0
[   26.029622] Call Trace:
[   26.029846]  notifier_call_chain+0x67/0xa0
[   26.030076]  blocking_notifier_call_chain+0x5a/0x80
[   26.030305]  device_release_driver_internal+0x20d/0x260
[   26.030535]  driver_detach+0x7b/0xe1
[   26.030761]  bus_remove_driver+0x8c/0x153
[   26.030993]  pci_unregister_driver+0x2d/0xf0
[   26.032603]  i915_exit+0x16/0x1c [i915]

Reported-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Fixes: 1eda701eac ("drm/i915/gtt: Recursive cleanup for gen8")
References: c082afac86 ("drm/i915: Move aliasing_ppgtt underneath its i915_ggtt")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191106221223.7437-1-chris@chris-wilson.co.uk
2019-11-07 10:52:14 +00:00
Jani Nikula
3c954c418e drm/i915/display: only include intel_dp_link_training.h where needed
The intel_dp_link_training.h include has no need or place in
intel_display.h. Include it in intel_display.c instead.

Cc: Manasi Navare <manasi.d.navare@intel.com>
Fixes: eadf6f9170 ("drm/i915/display/icl: Enable master-slaves in trans port sync")
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191029103947.7535-1-jani.nikula@intel.com
2019-11-07 12:24:14 +02:00
Amelie Delaunay
63e006c107 pinctrl: stmfx: fix valid_mask init sequence
With stmfx_pinctrl_gpio_init_valid_mask callback, gpio_valid_mask was used
to initialize gpiochip valid_mask for gpiolib. But gpio_valid_mask was not
yet initialized. gpio_valid_mask required gpio-ranges to be registered,
this is the case after gpiochip_add_data call. But init_valid_mask
callback is also called under gpiochip_add_data. gpio_valid_mask
initialization cannot be moved before gpiochip_add_data because
gpio-ranges are not registered.
So, it is not possible to use init_valid_mask callback.
To avoid this issue, get rid of valid_mask and rely on ranges.

Fixes: da9b142ab2 ("pinctrl: stmfx: Use the callback to populate valid_mask")
Signed-off-by: Amelie Delaunay <amelie.delaunay@st.com>
Link: https://lore.kernel.org/r/20191104100908.10880-1-amelie.delaunay@st.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
2019-11-07 10:06:46 +01:00
Daniel Vetter
74ceefd10b drm/i915: use might_lock_nested in get_pages annotation
So strictly speaking the existing annotation is also ok, because we
have a chain of

obj->mm.lock#I915_MM_GET_PAGES -> fs_reclaim -> obj->mm.lock

(the shrinker cannot get at an object while we're in get_pages, hence
this is safe). But it's confusing, so try to take the right subclass
of the lock.

This does a bit reduce our lockdep based checking, but then it's also
less fragile, in case we ever change the nesting around.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Will Deacon <will@kernel.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191104173720.2696-3-daniel.vetter@ffwll.ch
2019-11-07 09:58:54 +01:00
Daniel Vetter
e692b4021a lockdep: add might_lock_nested()
Necessary to annotate functions where we might acquire a
mutex_lock_nested() or similar. Needed by i915.

Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: Will Deacon <will@kernel.org>
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191104173720.2696-2-daniel.vetter@ffwll.ch
2019-11-07 09:58:32 +01:00
Daniel Vetter
f86dbacb30 drm/i915: Switch obj->mm.lock lockdep annotations on its head
The trouble with having a plain nesting flag for locks which do not
naturally nest (unlike block devices and their partitions, which is
the original motivation for nesting levels) is that lockdep will
never spot a true deadlock if you screw up.

This patch is an attempt at trying better, by highlighting a bit more
of the actual nature of the nesting that's going on. Essentially we
have two kinds of objects:

- objects without pages allocated, which cannot be on any lru and are
  hence inaccessible to the shrinker.

- objects which have pages allocated, which are on an lru, and which
  the shrinker can decide to throw out.

For the former type of object, memory allocations while holding
obj->mm.lock are permissible. For the latter they are not. And
get/put_pages transitions between the two types of objects.

This is still not entirely fool-proof since the rules might change.
But as long as we run such a code ever at runtime lockdep should be
able to observe the inconsistency and complain (like with any other
lockdep class that we've split up in multiple classes). But there are
a few clear benefits:

- We can drop the nesting flag parameter from
  __i915_gem_object_put_pages, because that function by definition is
  never going allocate memory, and calling it on an object which
  doesn't have its pages allocated would be a bug.

- We strictly catch more bugs, since there's not only one place in the
  entire tree which is annotated with the special class. All the
  other places that had explicit lockdep nesting annotations we're now
  going to leave up to lockdep again.

- Specifically this catches stuff like calling get_pages from
  put_pages (which isn't really a good idea, if we can call get_pages
  so could the shrinker). I've seen patches do exactly that.

Of course I fully expect CI will show me for the fool I am with this
one here :-)

v2: There can only be one (lockdep only has a cache for the first
subclass, not for deeper ones, and we don't want to make these locks
even slower). Still separate enums for better documentation.

Real fix: don't forget about phys objs and pin_map(), and fix the
shrinker to have the right annotations ... silly me.

v3: Forgot usertptr too ...

v4: Improve comment for pages_pin_count, drop the IMPORTANT comment
and instead prime lockdep (Chris).

v5: Appease checkpatch, no double empty lines (Chris)

v6: More rebasing over selftest changes. Also somehow I forgot to
push this patch :-/

Also format comments consistently while at it.

v7: Fix typo in commit message (Joonas)

Also drop the priming, with the lmem merge we now have allocations
while holding the lmem lock, which wreaks the generic priming I've
done in earlier patches. Should probably be resurrected when lmem is
fixed. See

commit 232a6ebae4
Author: Matthew Auld <matthew.auld@intel.com>
Date:   Tue Oct 8 17:01:14 2019 +0100

    drm/i915: introduce intel_memory_region

I'm keeping the priming patch locally so it wont get lost.

Cc: Matthew Auld <matthew.auld@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: "Tang, CQ" <cq.tang@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> (v5)
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> (v6)
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191105090148.30269-1-daniel.vetter@ffwll.ch
[mlankhorst: Fix commit typos pointed out by Michael Ruhl]
2019-11-07 09:58:11 +01:00
Chris Wilson
3466a3def2 drm/i915/gt: Cleanup heartbeat systole first
Before we grab the engine wakeref, tidy up the previous heartbeat
request. If we then abort because the engine powerwell is off, we ensure
the request is freed as we know we will not have freed it when
cancelling the work (as the work is running!).

Fixes: 841e867286 ("drm/i915/gt: Only drop heartbeat.systole if the sole owner")
References: 058179e72e ("drm/i915/gt: Replace hangcheck by heartbeats")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191106223410.30334-1-chris@chris-wilson.co.uk
2019-11-07 07:49:55 +00:00
Pan Bian
99a8efbb6e NFC: st21nfca: fix double free
The variable nfcid_skb is not changed in the callee nfc_hci_get_param()
if error occurs. Consequently, the freed variable nfcid_skb will be
freed again, resulting in a double free bug. Set nfcid_skb to NULL after
releasing it to fix the bug.

Signed-off-by: Pan Bian <bianpan2016@163.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:48:29 -08:00
Huazhong Tan
648db0514a net: hns3: add compatible handling for command HCLGE_OPC_PF_RST_DONE
Since old firmware does not support HCLGE_OPC_PF_RST_DONE, it will
return -EOPNOTSUPP to the driver when received this command. So
for this case, it should just print a warning and return success
to the caller.

Fixes: 72e2fb0799 ("net: hns3: clear reset interrupt status in hclge_irq_handle()")
Signed-off-by: Huazhong Tan <tanhuazhong@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:46:56 -08:00
David S. Miller
c78806f31f mlx5-fixes-2019-11-06
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Merge tag 'mlx5-fixes-2019-11-06' of git://git.kernel.org/pub/scm/linux/kernel/git/saeed/linux

Saeed Mahamees says:

====================
Mellanox, mlx5 fixes 2019-11-06

This series introduces some fixes to mlx5 driver.

Please pull and let me know if there is any problem.

No -stable this time.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:39:48 -08:00
Heiner Kallweit
9c6850fea3 r8169: fix page read in r8168g_mdio_read
Functions like phy_modify_paged() read the current page, on Realtek
PHY's this means reading the value of register 0x1f. Add special
handling for reading this register, similar to what we do already
in r8168g_mdio_write(). Currently we read a random value that by
chance seems to be 0 always.

Fixes: a2928d2864 ("r8169: use paged versions of phylib MDIO access functions")
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:36:48 -08:00
David S. Miller
58b87d21fe Merge branch 'stmmac-fixes'
Jose Abreu says:

====================
net: stmmac: Fixes for -net

Misc fixes for stmmac.

Patch 1/11 and 2/11, use the correct variable type for bitrev32() calls.

Patch 3/11, fixes the random failures the we were seing when running selftests.

Patch 4/11, prevents a crash that can occur when receiving AVB packets and with
SPH feature enabled on XGMAC.

Patch 5/11, fixes the correct settings for CBS on XGMAC.

Patch 6/11, corrects the interpretation of AVB feature on XGMAC.

Patch 7/11, disables Flow Control for AVB enabled queues on XGMAC.

Patch 8/11, disables MMC interrupts on XGMAC, preventing a storm of interrupts.

Patch 9/11, fixes the number of packets that were being taken into account in
the RX path cleaning function.

Patch 10/11, fixes an incorrect descriptor setting that could cause IP
misbehavior.

Patch 11/11, fixes the IOC generation mechanism when multiple descriptors
are used.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:22:56 -08:00
Jose Abreu
7df4a3a76d net: stmmac: Fix the TX IOC in xmit path
IOC bit must be only set in the last descriptor. Move the logic up a
little bit to make sure it's set in the correct descriptor.

Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:22:55 -08:00
Jose Abreu
b2f071995b net: stmmac: Fix TSO descriptor with Enhanced Addressing
When using addressing > 32 bits the TSO first descriptor only has the
header so we can't set the payload field for this descriptor. Let's
reset the variable so that buffer 2 value is zero.

Fixes: a993db88d1 ("net: stmmac: Enable support for > 32 Bits addressing in XGMAC")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:22:55 -08:00
Jose Abreu
cda4985a3e net: stmmac: Fix the packet count in stmmac_rx()
Currently, stmmac_rx() is counting the number of descriptors but it
should count the number of packets as specified by the NAPI limit.

Fix this.

Fixes: ec222003bd ("net: stmmac: Prepare to add Split Header support")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:22:55 -08:00
Jose Abreu
aeb18dd076 net: stmmac: xgmac: Disable MMC interrupts by default
MMC interrupts were being enabled, which is not what we want because it
will lead to a storm of interrupts that are not handled at all. Fix it
by disabling all MMC interrupts for XGMAC.

Fixes: b6cdf09f51 ("net: stmmac: xgmac: Implement MMC counters")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:22:55 -08:00
Jose Abreu
132f2f20c9 net: stmmac: xgmac: Disable Flow Control when 1 or more queues are in AV
When in AVB mode we need to disable flow control to prevent MAC from
pausing in TX side.

Fixes: ec6ea8e3ee ("net: stmmac: Add CBS support in XGMAC2")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:22:55 -08:00
Jose Abreu
08c1ac3bcb net: stmmac: xgmac: Fix AV Feature detection
Fix incorrect precedence of operators. For reference: AV implies AV
Feature but RAV implies only RX side AV Feature. As we want full AV
features we need to check RAV.

Fixes: c2b69474d6 ("net: stmmac: xgmac: Correct RAVSEL field interpretation")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:22:55 -08:00
Jose Abreu
97add93fbc net: stmmac: xgmac: Fix TSA selection
When we change between Transmission Scheduling Algorithms, we need to
clear previous values so that the new chosen algorithm is correctly
selected.

Fixes: ec6ea8e3ee ("net: stmmac: Add CBS support in XGMAC2")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:22:55 -08:00
Jose Abreu
96147375d4 net: stmmac: xgmac: Only get SPH header len if available
Split Header length is only available when L34T == 0. Fix this by
correctly checking if L34T is zero before trying to get Header length.

Fixes: 67afd6d1cf ("net: stmmac: Add Split Header support and enable it in XGMAC cores")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:22:55 -08:00
Jose Abreu
eeb9d74516 net: stmmac: selftests: Prevent false positives in filter tests
In L2 tests that filter packets by destination MAC address we need to
prevent false positives that can occur if we add an address that
collides with the existing ones.

To fix this, lets manually check if the new address to be added is
already present in the NIC and use a different one if so. For Hash
filtering this also envolves converting the address to the hash.

Fixes: 091810dbde ("net: stmmac: Introduce selftests support")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:22:55 -08:00
Jose Abreu
3d00e45d49 net: stmmac: xgmac: bitrev32 returns u32
The bitrev32 function returns an u32 var, not an int. Fix it.

Fixes: 0efedbf11f ("net: stmmac: xgmac: Fix XGMAC selftests")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:22:55 -08:00
Jose Abreu
4d7c47e34f net: stmmac: gmac4: bitrev32 returns u32
The bitrev32 function returns an u32 var, not an int. Fix it.

Fixes: 477286b53f ("stmmac: add GMAC4 core support")
Signed-off-by: Jose Abreu <Jose.Abreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2019-11-06 21:22:55 -08:00