Commit Graph

637182 Commits

Author SHA1 Message Date
Dan Carpenter e89e50ac35 drm: mxsfb: drm_dev_alloc() returns error pointers
We should be checking for IS_ERR() instead of NULL because
drm_dev_alloc() returns error pointers.

Fixes: 45d59d7040 ("drm: Add new driver for MXSFB controller")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161213122332.GA7519@elgon.mountain
2016-12-13 22:24:20 +01:00
Daniel Vetter 010f5b9f0d Main pull request for drm for 4.10 kernel
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Merge tag 'drm-for-v4.10' of git://people.freedesktop.org/~airlied/linux into drm-misc-next

Main pull request for drm for 4.10 kernel - resync drm-misc with full
4.10 state (2 new drivers) so that we can start pulling in all the
refactorings for 4.11!

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2016-12-13 22:23:18 +01:00
Daniel Stone de7b6be7f3 drm: Use atomic state for FB in legacy ioctls
If atomic state is available, use this to read the current plane in
GetCrtc/GetPlane, rather than the legacy points.

Signed-off-by: Daniel Stone <daniels@collabora.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161213181912.92904-1-daniels@collabora.com
2016-12-13 22:22:08 +01:00
Kristian H. Kristensen af91341826 drm_fourcc: Fix DRM_FORMAT_MOD_LINEAR #define
We need to define DRM_FORMAT_MOD_VENDOR_NONE for the fourcc_mod_code()
macro to work correctly.

Signed-off-by: Kristian H. Kristensen <hoegsberg@google.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1481657272-25975-1-git-send-email-hoegsberg@google.com
2016-12-13 22:01:50 +01:00
Daniel Vetter ecdfcebb4c drm/etnaviv: Use drm_dev_unref, not drm_put_dev
drm_put_dev is the old midlayer-broken device cleanup function, but
etnaviv has a proper unbind function which first unregisters and then
drops the final reference. No functional change since
drm_dev_unregister happens to be idempotent.

Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Russell King <linux+etnaviv@armlinux.org.uk>
Cc: Christian Gmeiner <christian.gmeiner@gmail.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161208110739.24417-1-daniel.vetter@ffwll.ch
2016-12-13 18:13:09 +01:00
Daniel Vetter ae9d2daecf drm/mediatek: don't use drm_put_dev
fsl is already fully demidlayered in the probe function, but for
convenience stuck with drm_put_dev. Call the unregister/unref parts
separately, to make sure this driver works correct.

Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: CK Hu <ck.hu@mediatek.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161208110739.24417-3-daniel.vetter@ffwll.ch
2016-12-13 18:12:43 +01:00
Daniel Vetter e7e21c72b1 dma-buf: Final bits of doc polish
- Put all the remaing bits of the old doc into suitable places in the
  new sphinx world.
- Also document the poll support, we forgot to do that.
- Delete dma-buf-sharing.txt.

v2: Don't forget to update MAINTAINERS.

Cc: linux-doc@vger.kernel.org
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20161209215055.3492-1-daniel.vetter@ffwll.ch
2016-12-13 17:54:28 +05:30
Daniel Vetter 0959a1683d dma-buf: Update cpu access documentation
- Again move the information relevant for driver writers next to the
  callbacks.
- Put the overview and userspace interface documentation into a DOC:
  section within the code.
- Remove the text that mmap needs to be coherent - since the
  DMA_BUF_IOCTL_SYNC landed that's no longer the case. But keep the text
  that for pte zapping exporters need to adjust the address space.
- Add a FIXME that kmap and the new begin/end stuff used by the SYNC
  ioctl don't really mix correctly. That's something I just realized
  while doing this doc rework.
- Augment function and structure docs like usual.

Cc: linux-doc@vger.kernel.org
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
  [sumits: fix cosmetic issues]
Link: http://patchwork.freedesktop.org/patch/msgid/20161209185309.1682-5-daniel.vetter@ffwll.ch
2016-12-13 17:53:32 +05:30
Daniel Vetter 2904a8c131 dma-buf: Reorganize device dma access docs
- Put the initial overview for dma-buf into dma-buf.rst.
- Put all the comments about detailed semantics into the right
  kernel-doc comment for functions or ops structure member.
- To allow that detail, switch the reworked kerneldoc to inline style
  for dma_buf_ops.
- Tie everything together into a much more streamlined overview
  comment, relying on the hyperlinks for all the details.
- Also sprinkle some links into the kerneldoc for dma_buf and
  dma_buf_attachment to tie it all together.

Cc: linux-doc@vger.kernel.org
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20161209185309.1682-4-daniel.vetter@ffwll.ch
2016-12-13 17:09:51 +05:30
Daniel Vetter 24a367348a dma-buf: Update kerneldoc for sync_file_create
This was missed when adding a dma_fence_get call. While at it also
remove the kerneldoc for the static inline helper - no point
documenting internals down to every detail.

Fixes: 30cd85dd6e ("dma-buf/sync_file: hold reference to fence when creating sync_file")
Cc: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: linux-doc@vger.kernel.org
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: Sumit Semwal <sumit.semwal@linaro.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20161209185309.1682-3-daniel.vetter@ffwll.ch
2016-12-13 17:09:39 +05:30
Daniel Vetter c248891675 These are the documentation changes for 4.10.
It's another busy cycle for the docs tree, as the sphinx conversion
 continues.  Highlights include:
 
  - Further work on PDF output, which remains a bit of a pain but should be
    more solid now.
 
  - Five more DocBook template files converted to Sphinx.  Only 27 to go...
    Lots of plain-text files have also been converted and integrated.
 
  - Images in binary formats have been replaced with more source-friendly
    versions.
 
  - Various bits of organizational work, including the renaming of various
    files discussed at the kernel summit.
 
  - New documentation for the device_link mechanism.
 
 ...and, of course, lots of typo fixes and small updates.
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Merge tag 'docs-4.10' of git://git.lwn.net/linux into drm-misc-next

Backmerge the docs-next branch from Jon into drm-misc so that we can
apply the dma-buf documentation cleanup patches. Git found a conflict
where there was none because both drm-misc and docs had identical
patches to clean up file rename issues in the rst include directives.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2016-12-13 10:36:39 +01:00
Daniel Vetter 38bf57fa7b drm/hisilicon: Don't set drm_device->platformdev
It's deprecated and only should be used by drivers which still use
drm_platform_init, not by anyone else.

And indeed it's entirely unused and can be nuked.

This required a bit more fudging, but I guess kirin_dc_ops really
wants to operate on the platform_device, not something else. Also
bonus points for implementing abstraction, and then storing the vfunc
in a global variable.

v2: Don't break the build soooo badly :(
Note that the cleanup function is a bit confused: ade_data was never
set as drvdata, and calling drm_crtc_cleanup directly is a bug - this
is called indirectly through drm_mode_config_cleanup, which calls into
crtc->destroy, which already has the call to drm_crtc_cleanup. Which
means we can just nuke it.

Note this is the 2nd attempt after the first one failed and had to be
reverted again in

commit 9cd2e854d6
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Wed Aug 17 13:59:40 2016 +0200

    Revert "drm/hisilicon: Don't set drm_device->platformdev"

Cc: Xinliang Liu <xinliang.liu@linaro.org>
Cc: Xinwei Kong <kong.kongxinwei@hisilicon.com>
Cc: Archit Taneja <architt@codeaurora.org>
Cc: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161209141944.22121-1-daniel.vetter@ffwll.ch
2016-12-13 10:11:59 +01:00
Daniel Vetter fdd5b877e9 drm: Enforce BKL-less ioctls for modern drivers
With the last round of changes all ioctls called by modern drivers now
have their own locking. Everything else is only allowed for legacy
drivers and hence the lack of locking doesn't matter.

One exception is nouveau, due to the DRIVER_KMS_LEGACY_CONTEXT flag.
But that only works its magic on the context and bufs ioctls. And
drm_bufs.c is protected with dev->struct_mutex, and drm_context.c by
the same and dev->ctxlist_mutex. That should be all safe, and we can
finally mandata drm-bkl-less ioctls for everyone!

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161210215255.7765-3-daniel.vetter@ffwll.ch
2016-12-13 09:37:43 +01:00
Daniel Vetter dcf727ab5d drm: setclientcap doesn't need the drm BKL
It only updates per-file feature flags. And all the ioctl which change
behaviour depending upon these flags (they're all kms features) do
_not_ hold the BKL. Therefor this is pure cargo-cult and can be
removed.

Note that there's a risk that the ioctl will behave inconsistently
when userspace is racing with itself, but that's ok. The only thing
it's not allowed to do is oops the kernel, and from an audit all
places are safe.

v2: Clarify that the inconsistency is only when userspace races
(Chris).

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161210215255.7765-2-daniel.vetter@ffwll.ch
2016-12-13 09:36:48 +01:00
Daniel Vetter 5acc614ac4 drm: Protect master->unique with dev->master_mutex
No one looks at the major/minor versions except the unique/busid
stuff. If we protect that with the master_mutex (since it also affects
the unique of each master, oh well) we can mark these two IOCTL with
DRM_UNLOCKED.

While doing this I realized that the comment for the magic_map is
outdated, I've forgotten to update it in:

commit d2b34ee62b
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Fri Jun 17 09:33:21 2016 +0200

    drm: Protect authmagic with master_mutex

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161210215255.7765-1-daniel.vetter@ffwll.ch
2016-12-13 09:36:13 +01:00
Daniel Vetter b9fb2a21ac drm_fourcc: Document linear modifier
Not setting the fb modifiers flag is something different from setting
the fb modifiers to 0 (which means explicitly linear). We kinda failed
to document that properly. Spotted by Kristian.

Cc: hoegsberg@google.com
Reviewed-by: Kristian H. Kristensen <hoegsberg@google.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1478694996-4200-1-git-send-email-daniel.vetter@ffwll.ch
2016-12-13 08:19:36 +01:00
Dave Airlie 2cf026ae85 Merge branch 'linux-4.10' of git://github.com/skeggsb/linux into drm-next
- Regression fix from atomic conversion (rotation on the original G80).
- Concurrency fix when clearing compression tags.
- Fixes DP link training issues on GP102/4/6.
- Fixes backlight handling in the presence of Apple GMUX.
- Improvements to GPU error recovery in a number of scenarios.
- GP106 support.

* 'linux-4.10' of git://github.com/skeggsb/linux:
  drm/nouveau/kms/nv50: fix atomic regression on original G80
  drm/nouveau/bl: Do not register interface if Apple GMUX detected
  drm/nouveau/bl: Assign different names to interfaces
  drm/nouveau/bios/dp: fix handling of LevelEntryTableIndex on DP table 4.2
  drm/nouveau/ltc: protect clearing of comptags with mutex
  drm/nouveau/gr/gf100-: handle GPC/TPC/MPC trap
  drm/nouveau/core: recognise GP106 chipset
  drm/nouveau/ttm: wait for bo fence to signal before unmapping vmas
  drm/nouveau/gr/gf100-: FECS intr handling is not relevant on proprietary ucode
  drm/nouveau/gr/gf100-: properly ack all FECS error interrupts
  drm/nouveau/fifo/gf100-: recover from host mmu faults
2016-12-13 14:29:05 +10:00
Dave Airlie a77a1ad11e drm/tegra: Changes for v4.10-rc1
This has a couple of fixes for IOMMU support and some fixes for error
 handling.
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Merge tag 'drm/tegra/for-4.10-rc1' of git://anongit.freedesktop.org/tegra/linux into drm-next

drm/tegra: Changes for v4.10-rc1

This has a couple of fixes for IOMMU support and some fixes for error
handling.

* tag 'drm/tegra/for-4.10-rc1' of git://anongit.freedesktop.org/tegra/linux:
  drm/tegra: Set sgt pointer in BO pin
  drm/tegra: Support kernel mappings with IOMMU
  gpu: host1x: Add locking to syncpt
  gpu: host1x: Store device address to all bufs
  drm/tegra: gem: Remove some dead code
  drm/tegra: sor: No need to free devm_ allocated memory
  drm/tegra: Fix error handling
  drm/tegra: dpaux: Fix error handling
2016-12-13 14:27:41 +10:00
Dave Airlie bdda9dd674 drm/panel: Changes for v4.10-rc1
This adds support for a couple more panels to the simple-panel driver.
 There is also a fix for a long-standing bug, but it's not critical since
 no code will currently trigger it.
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Merge tag 'drm/panel/for-4.10-rc1' of git://anongit.freedesktop.org/tegra/linux into drm-next

drm/panel: Changes for v4.10-rc1

This adds support for a couple more panels to the simple-panel driver.
There is also a fix for a long-standing bug, but it's not critical since
no code will currently trigger it.

* tag 'drm/panel/for-4.10-rc1' of git://anongit.freedesktop.org/tegra/linux:
  drm/panel: simple: Add support for AUO G185HAN01
  drm/panel: simple: Add support for AUO G133HAN01
  drm/panel: simple: Add more properties to Innolux G121I1-L01
  drm/panel: simple: Add bits-per-component for Sharp LQ123P1JX31
  drm/panel: simple: Check against num_timings when setting preferred for timing
  drm/panel: Add support for Chunghwa CLAA070WP03XG panel
  drm/panel: simple: Add NVD9128 as a simple panel
  drm/panel: simple: Add support for AUO T215HVN01
  drm/panel: simple: Add support for Sharp LQ150X1LG11 panels
  dt-bindings: display: Add Sharp LQ150X1LG11 panel binding
2016-12-13 14:26:28 +10:00
Dave Airlie 8a5c61f4ff Merge tag 'drm-misc-next-fixes-2016-12-10' of git://anongit.freedesktop.org/git/drm-misc into drm-next
single fix for backwards compat.

* tag 'drm-misc-next-fixes-2016-12-10' of git://anongit.freedesktop.org/git/drm-misc:
  drm: Add fake controlD* symlinks for backwards compat
2016-12-13 14:24:25 +10:00
Dave Airlie 2601a15d5d This pull request brings in VEC (TV-out) support for vc4, along with a
pageflipping race fix.
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Merge tag 'drm-vc4-next-2016-12-09' of https://github.com/anholt/linux into drm-next

This pull request brings in VEC (TV-out) support for vc4, along with a
pageflipping race fix.

* tag 'drm-vc4-next-2016-12-09' of https://github.com/anholt/linux:
  drm/vc4: Don't use drm_put_dev
  drm/vc4: Document VEC DT binding
  drm/vc4: Add support for the VEC (Video Encoder) IP
  drm: Add TV connector states to drm_connector_state
  drm: Turn DRM_MODE_SUBCONNECTOR_xx definitions into an enum
  drm/vc4: Fix ->clock_select setting for the VEC encoder
  drm/vc4: Fix race between page flip completion event and clean-up
2016-12-13 12:05:12 +10:00
Ben Skeggs 19d53d0147 drm/nouveau/kms/nv50: fix atomic regression on original G80
Reported-by: Pierre Moreau <pierre.morrow@free.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-12-13 11:40:17 +10:00
Pierre Moreau b53ac1ee12 drm/nouveau/bl: Do not register interface if Apple GMUX detected
The Apple GMUX is the one managing the backlight, so there is no need for
Nouveau to register its own backlight interface.

v2: Do not split information message on two lines as it prevents from grepping
    it, as pointed out by Lukas Wunner

v3: Add a missing end-of-line character to the printed message

Signed-off-by: Pierre Moreau <pierre.morrow@free.fr>
Reviewed-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-12-13 11:40:17 +10:00
Pierre Moreau db1a0ae214 drm/nouveau/bl: Assign different names to interfaces
Currently, every backlight interface created by Nouveau uses the same name,
nv_backlight. This leads to a sysfs warning as it tries to create an already
existing folder. This patch adds a incremented number to the name, but keeps
the initial name as nv_backlight, to avoid possibly breaking userspace; the
second interface will be named nv_backlight1, and so on.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=86539

v2:
* Switch to using ida for generating unique IDs, as suggested by Ilia Mirkin;
* Allocate backlight name on the stack, as suggested by Ilia Mirkin;
* Move `nouveau_get_backlight_name()` to avoid forward declaration, as
  suggested by Ilia Mirkin;
* Fix reference to bug report formatting, as reported by Nick Tenney.

v3:
* Define a macro for the size of the backlight name, to avoid defining
  it multiple times;
* Use snprintf in place of sprintf.

v4:
* Do not create similarly named interfaces when reaching the maximum
  amount of unique names, but fail instead, as pointed out by Lukas Wunner

Signed-off-by: Pierre Moreau <pierre.morrow@free.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-12-13 11:40:16 +10:00
Ben Skeggs 79d48dadb0 drm/nouveau/bios/dp: fix handling of LevelEntryTableIndex on DP table 4.2
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-12-13 11:40:16 +10:00
Ben Skeggs f4e65efc88 drm/nouveau/ltc: protect clearing of comptags with mutex
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Cc: stable@vger.kernel.org
2016-12-13 11:40:09 +10:00
Ben Skeggs 64373e4bb6 drm/nouveau/gr/gf100-: handle GPC/TPC/MPC trap
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-12-13 11:40:08 +10:00
Ben Skeggs 1fe487d7d2 drm/nouveau/core: recognise GP106 chipset
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-12-13 11:40:08 +10:00
Ben Skeggs 10dcab3e7f drm/nouveau/ttm: wait for bo fence to signal before unmapping vmas
TTM was changed a while back to allow for pipelining of buffer moves, and
part of this was the removal of waiting for a BO to idle before calling
move(), placing the responsibility on the driver to do this if required.

That's all well and good, except, we make use of move_notify() to handle
mapping/unmapping from the GPU VMM as move() isn't called on all paths.

This commit adds a wait before unmapping from a VMM in move_notify(), to
prevent GPU page faults where a buffer is still being accessed.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Cc: stable@vger.kernel.org [v4.8+]
2016-12-13 11:39:55 +10:00
Ben Skeggs 732be80743 drm/nouveau/gr/gf100-: FECS intr handling is not relevant on proprietary ucode
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-12-13 11:38:52 +10:00
Ben Skeggs 48dac93506 drm/nouveau/gr/gf100-: properly ack all FECS error interrupts
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-12-13 11:38:51 +10:00
Ben Skeggs ec884f74f1 drm/nouveau/fifo/gf100-: recover from host mmu faults
This has been on the TODO list for a while now, recovering from things
such as attempting to execute a push buffer or touch a semaphore in an
unmapped memory area.

The only thing required on the HW side here is that the offending
channel is removed from the runlist, and *not* a full reset of PFIFO.

This used to be a bit messier to handle before the rework to make use
of engine topology info, but is apparently now trivial.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-12-13 11:38:51 +10:00
Daniel Vetter 697cc9c8a2 drm: Simplify GETRESOURCES ioctl
Looping twice when we can do it once is silly. Also use a consistent
style. Note that there's a good race with the connector list walking,
since that is no longer protected by mode_config.mutex. But that's for
a later patch to fix.

v2: Actually try to not blow up, somehow I lost the hunk that checks
we don't copy too much. Noticed by Chris.

v3:
- squash all drm_mode_getresources cleanups into one
- use consistent style for walking objects (Chris)

v4:
- Use u64_to_user_ptr (Chris)
- Don't forget to copy the last connector (Chris)

v5: Chris was right ...

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161211192019.29603-1-daniel.vetter@ffwll.ch
2016-12-12 10:24:07 +01:00
Chris Wilson 122020af85 dma-buf: Provide wrappers for reservation's lock
Joonas complained that writing ww_mutex_lock(&resv->lock, ctx) was too
intrusive compared to reservation_object_lock(resv, ctx);

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161115154642.31850-1-chris@chris-wilson.co.uk
2016-12-12 07:54:43 +01:00
Daniel Vetter 868c97a846 dma-buf: Extract dma-buf.rst
Just prep work to polish and consolidate all the dma-buf related
documenation.

Unfortunately I didn't discover a way to both integrate this new file
into the overall toc while keeping it at the current place. Work
around that by moving it into the overall driver-api/index.rst.

Cc: linux-doc@vger.kernel.org
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Sumit Semwal <sumit.semwal@linaro.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
2016-12-11 13:37:55 -07:00
Daniel Vetter 6449b088dd drm: Add fake controlD* symlinks for backwards compat
We thought that no userspace is using them, but oops libdrm is using
them to figure out whether a driver supports modesetting. Check out
drmCheckModesettingSupported but maybe don't because it's horrible and
totally runs counter to where we want to go with libdrm device
handling. The function looks in the device hierarchy for whether
controlD* exist using the following format string:

/sys/bus/pci/devices/%04x:%02x:%02x.%d/drm/controlD%d

The "/drm" subdirectory is the glue directory from the sysfs class
stuff, and the only way to get at it seems to through
kdev->kobj.parent (when kdev is represents e.g. the card0 chardev
instance in sysfs). Git grep says we're not the only ones touching
that, so I hope it's ok we dig into such internals - I couldn't find a
proper interface for getting at the glue directory.

Quick git grep shows that at least -amdgpu, -ati are using this.
-modesetting do not, and on -intel it's only about the 4th fallback
path for device lookup, which is why this didn't blow up earlier.

Oh well, we need to keep it working, and the simplest way is to add a
symlink at the right place in sysfs from controlD* to card*.

v2:
- Fix error path handling by adding if (!minor) return checks (David)
- Fix the controlD* numbers to match what's been there (David)
- Add a comment what exactly userspace minimally needs.
- Correct the analysis for -intel (Chris).

Fixes: 8a357d1004 ("drm: Nerf DRM_CONTROL nodes")
Cc: Dave Airlie <airlied@gmail.com>
Reported-and-tested-by: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Emil Velikov <emil.l.velikov@gmail.com>
Reviewed-by: David Herrmann <dh.herrmann@gmail.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: David Herrmann <dh.herrmann@gmail.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161209135656.14881-1-daniel.vetter@ffwll.ch
2016-12-10 22:46:19 +01:00
Daniel Vetter c167df443b drm/vc4: Don't use drm_put_dev
vc4 already has a proper load sequence, but the unload one needed some
fixups: First unregister, and last drop the final ref.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2016-12-09 15:28:42 -08:00
Boris Brezillon 6e89a3ce7c drm/vc4: Document VEC DT binding
Document the DT binding for the VEC (Video EnCoder) IP.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Rob Herring <robh@kernel.org>
2016-12-09 15:26:31 -08:00
Boris Brezillon e4b81f8c74 drm/vc4: Add support for the VEC (Video Encoder) IP
The VEC IP is a TV DAC, providing support for PAL and NTSC standards.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2016-12-09 15:26:31 -08:00
Boris Brezillon 299a16b163 drm: Add TV connector states to drm_connector_state
Some generic TV connector properties are exposed in drm_mode_config, but
they are currently handled independently in each DRM encoder driver.

Extend the drm_connector_state to store TV related states, and modify the
drm_atomic_connector_{set,get}_property() helpers to fill the connector
state accordingly.

Each driver is then responsible for checking and applying the new config
in its ->atomic_mode_{check,set}() operations.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Eric Anholt <eric@anholt.net>
2016-12-09 15:26:30 -08:00
Boris Brezillon dee7a4fee7 drm: Turn DRM_MODE_SUBCONNECTOR_xx definitions into an enum
List of values like the DRM_MODE_SUBCONNECTOR_xx ones are better
represented with enums.

Turn the DRM_MODE_SUBCONNECTOR_xx macros into an enum.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Suggested-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Eric Anholt <eric@anholt.net>
2016-12-09 15:26:30 -08:00
Boris Brezillon ab8df60e3a drm/vc4: Fix ->clock_select setting for the VEC encoder
PV_CONTROL_CLK_SELECT_VEC is actually 2 and not 0. Fix the definition and
rework the vc4_set_crtc_possible_masks() to cover the full range of the
PV_CONTROL_CLK_SELECT field.

Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Signed-off-by: Eric Anholt <eric@anholt.net>
2016-12-09 15:26:29 -08:00
Dave Airlie 25dfd7cfef Merge tag 'drm-fsl-dcu-for-next' of http://git.agner.ch/git/linux-drm-fsl-dcu into drm-next
Some fixes and cleanup, mainly around fbdev emulation. It also adds a
new module parameter which allows to specify the color depth/bpp for
the fbdev emulation (like the IMX DRM driver).

* tag 'drm-fsl-dcu-for-next' of http://git.agner.ch/git/linux-drm-fsl-dcu:
  drm/fsl-dcu: introduce kernel parameter to specify fbdev depth
  drm/fsl-dcu: remove separate compilation unit for fbdev emulation
  drm/fsl-dcu: Propagate the real error code
  drm/fsl-dcu: Remove unneeded NULL check
  drm/fsl-dcu: disable outputs before unloading driver
  drm/fsl-dcu: unload driver before disabling clocks
2016-12-09 12:43:17 +10:00
Dave Airlie acc5ddd972 Merge tag 'drm-misc-next-2016-12-08' of git://anongit.freedesktop.org/git/drm-misc into drm-next
Another pile of misc stuff, final one for 4.10. If there's some serious
bugfix still I'll send you a pull for drm-misc-next-fixes (like we do with
intel), otherwise this is it and next pull next year for 4.11.

Most interesting bits are probably Chris' fb helper fixes against mst
hotplug oopses.

* tag 'drm-misc-next-2016-12-08' of git://anongit.freedesktop.org/git/drm-misc: (22 commits)
  drm: Take ownership of the dmabuf->obj when exporting
  drm: Allow CAP_PRIME on !MODESET
  drm/fence: add drm_crtc_create_fence()
  drm/bridge: analogix: Don't return -EINVAL when panel doesn't support PSR
  drm/atomic: doc: remove old comment about nonblocking commits
  drm: Don't block the kworker waiting for mode_config.mutex in output_poll()
  drm: Return -ENOTSUPP when called for KMS cap with a non-KMS driver
  drm/amdgpu: don't add files at control minor debugfs directory
  drm: allow changing DPMS mode
  drm/qxl: fix use of uninitialized variable
  drm/qxl: Don't register debugfs for control minors
  drm/radeon: don't add files at control minor debugfs directory
  drm/vmwgfx: Switch to mode_cmd2
  drm/vgem: Use ww_mutex_(un)lock even with a NULL context
  drm: Make the connector .detect() callback optional
  drm/bridge: tc358767: don't warn if display side ASSR enable fails
  drm: Initialise drm_mm.head_node.allocated
  drm: Fix locking cargo-cult in encoder/plane init/cleanup
  drm/doc: Fix indenting in drm_modeset_lock.c comment
  drm: Protect fb_helper list manipulation with a mutex
  ...
2016-12-09 12:29:10 +10:00
Dave Airlie bfd5be0f9e Merge branch 'drm-next-4.10' of git://people.freedesktop.org/~agd5f/linux into drm-next
Misc fixes and cleanups for 4.10. Highlights:
- Cursor fixes for radeon and amdgpu
- DPM fixes for some new SI variants
- Powerplay fixes
- Clock and powergating fixes

* 'drm-next-4.10' of git://people.freedesktop.org/~agd5f/linux: (39 commits)
  drm/amdgpu/dce6: Set MASTER_UPDATE_MODE to 0 in resume_mc_access as well
  drm/amdgpu: use pin rather than pin_restricted in a few cases
  drm/amd/powerplay: use pr_debug to print function not implemented message
  drm/amd/amdgpu: Add gpr reading for GFX v7
  drm/amd/amdgpu: Add gpr reading for GFX v6
  drm/amd/amdgpu: Add debugfs support for reading GPRs (v2)
  drm/amd/amdgpu: export vbios information (v2)
  drm/amd/amdgpu: stored bios_size
  drm/amdgpu: update golden setting of tonga
  drm/amdgpu/si: load the proper firmware on 0x87 oland boards
  drm/amdgpu: add additional pci revision to dpm workaround
  drm/radeon/si: load the proper firmware on 0x87 oland boards
  drm/radeon: add additional pci revision to dpm workaround
  drm/amd/powerplay: Fix potential NULL pointer issue
  drm/amdgpu: Don't touch GFX hw during HW fini
  drm/amd/powerplay: Adjust the position of data size initial
  drm/amd/powerplay: Ignore smu buffer usage
  drm/amd/powerplay: cut digest part
  drm/amdgpu: drop redundant vi_mqd define
  drm/amdgpu: fix gtt available page num accounting
  ...
2016-12-09 12:28:16 +10:00
Dave Airlie 6f21890989 omapdrm fixes for v4.10
* fix tpd12s015's error handling, which causes omap5 uevm HDMI to fail
 * fix omapdrm primary plane allocation bug, which makes the display to fail to
   come up
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Merge tag 'omapdrm-4.10-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux into drm-next

omapdrm fixes for v4.10

* fix tpd12s015's error handling, which causes omap5 uevm HDMI to fail
* fix omapdrm primary plane allocation bug, which makes the display to fail to
  come up

* tag 'omapdrm-4.10-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux:
  drm/omap: tpd12s015: fix error handling
  drm/omap: fix primary-plane's possible_crtcs
  drm: fix possible_crtc's type
2016-12-09 12:27:54 +10:00
Michel Dänzer 32859f7335 drm/amdgpu/dce6: Set MASTER_UPDATE_MODE to 0 in resume_mc_access as well
Looks like this was missed when dce_v6_0.c was added.

Fixes: e2cdf640cb ("drm/amdgpu: add display controller implementation for si v10")
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2016-12-08 14:17:12 -05:00
Alex Deucher 7fe285769c drm/amdgpu: use pin rather than pin_restricted in a few cases
We don't require a resticted pinning in these cases, so just
use plain pin.

Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-12-08 14:12:19 -05:00
Arindam Nath d2939bc780 drm/amd/powerplay: use pr_debug to print function not implemented message
For CZ, some function pointers like display_configuration_changed
are not set. So when HW manager tries to configure display, we
end up with messages like

"[ powerplay ] this function not implement!"

in the logs. This message is informational, but lacks details
on which function is not implemented and why.

Rather than using KERN_INFO to print the message everytime the
system boots, we rather use pr_debug so that it is only printed
when debug prints are enabled at runtime.

Reviewed-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Arindam Nath <arindam.nath@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-12-08 14:12:18 -05:00
Tom St Denis cc3f5b8df9 drm/amd/amdgpu: Add gpr reading for GFX v7
Signed-off-by: Tom St Denis <tom.stdenis@amd.com>
Acked-by: Edward O'Callaghan <funfunctor@folklore1984.net>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-12-08 14:12:18 -05:00