Commit Graph

21405 Commits

Author SHA1 Message Date
Viresh Kumar
55579cfe67 drivers: gpu: Drop unlikely before IS_ERR(_OR_NULL)
IS_ERR(_OR_NULL) already contain an 'unlikely' compiler flag and there
is no need to do that again from its callers. Drop it.

Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-08-06 14:13:07 +02:00
Archit Taneja
0843010bbd drm/virtio: Use new drm_fb_helper functions
Use the newly created wrapper drm_fb_helper functions instead of calling
core fbdev functions directly. They also simplify the fb_info creation.

v3:
- Don't touch remove_conflicting_framebuffers

v2:
- add missing header for virtgpu_fb.c

Cc: David Airlie <airlied@linux.ie>
Cc: Gerd Hoffmann <kraxel@redhat.com>

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-08-06 14:13:07 +02:00
Archit Taneja
2dbaf392d2 drm/amdgpu: Use new drm_fb_helper functions
Use the newly created wrapper drm_fb_helper functions instead of calling
core fbdev functions directly. They also simplify the fb_info creation.

v3:
- Don't touch remove_conflicting_framebuffers

v2:
- Fixed PTR_ERR issue mentioned by kbuild bot

Cc: Fengguang Wu <fengguang.wu@intel.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Oded Gabbay <oded.gabbay@gmail.com>
Cc: "Christian König" <christian.koenig@amd.com>

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-08-06 14:13:06 +02:00
Archit Taneja
6a752972a3 drm/bochs: Use new drm_fb_helper functions
Use the newly created wrapper drm_fb_helper functions instead of calling
core fbdev functions directly. They also simplify the fb_info creation.

v3:
- Don't touch remove_conflicting_framebuffers

v2:
- remove unused variable device in bochsfb_create

Cc: David Airlie <airlied@linux.ie>
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-08-06 14:13:06 +02:00
Archit Taneja
b166aeb99f drm/nouveau: Use new drm_fb_helper functions
Use the newly created wrapper drm_fb_helper functions instead of calling
core fbdev functions directly. They also simplify the fb_info creation.

v3:
- Don't touch remove_conflicting_framebuffers

v2:
- remove unused variable pdev in nouveau_fbcon_create

Cc: David Airlie <airlied@linux.ie>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Alexandre Courbot <acourbot@nvidia.com>

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-08-06 14:13:05 +02:00
Archit Taneja
21cff14847 drm/i915: Use new drm_fb_helper functions
Use the newly created wrapper drm_fb_helper functions instead of calling
core fbdev functions directly. They also simplify the fb_info creation.

v3:
- Don't touch remove_conflicting_framebuffers

v2:
- No changes

Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-08-06 14:13:05 +02:00
Archit Taneja
0045005243 drm/radeon: Use new drm_fb_helper functions
Use the newly created wrapper drm_fb_helper functions instead of calling
core fbdev functions directly. They also simplify the fb_info creation.

v3:
- Don't touch remove_conflicting_framebuffers

v2:
- Fix build break because of missing include of drm_fb_helper in
  radeon_drv.c

Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-08-06 14:13:04 +02:00
Archit Taneja
4f72a6eaed drm/mgag200: Use new drm_fb_helper functions
Use the newly created wrapper drm_fb_helper functions instead of calling
core fbdev functions directly. They also simplify the fb_info creation.

v3:
- Don't touch remove_conflicting_framebuffers

v2:
- remove unused goto label 'out'

Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: David Airlie <airlied@linux.ie>
Cc: Alex Deucher <alexander.deucher@amd.com>

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-08-06 14:13:04 +02:00
Archit Taneja
231e6faf02 drm/omap: Use new drm_fb_helper functions
Use the newly created wrapper drm_fb_helper functions instead of calling
core fbdev functions directly. They also simplify the fb_info creation.

v3:
- Update error handling for new drm_fb_helper funcs. Check using IS_ERR()
  instead of checking for NULL.

Reported-by: Dan Carpenter <dan.carpenter@oracle.com>

v2:
- No changes

Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-08-06 14:13:03 +02:00
Archit Taneja
2b9e6e376a drm/cirrus: Use new drm_fb_helper functions
Use the newly created wrapper drm_fb_helper functions instead of calling
core fbdev functions directly.

v3:
- Don't touch remove_conflicting_framebuffers

v2:
- Remove stray goto label out_iounmap

Cc: Thierry Reding <treding@nvidia.com>
Cc: Zach Reizner <zachr@google.com>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Cc: Fabian Frederick <fabf@skynet.be>

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-08-06 14:13:03 +02:00
Daniel Vetter
f8c2ba316b drm: Fixup locking WARNINGs in drm_mode_config_reset
With

commit 7a3f3d6667
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Thu Jul 9 23:44:28 2015 +0200

    drm: Check locking in drm_for_each_connector

we started checking the locking in drm_for_each_connector but somehow
I totally missed drm_mode_config_reset. There's no problem there since
this function should only be called in single-threaded contexts
(driver load or resume), so just wrap the loop with the right lock.

v2: Drink coffee and all that ...

Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reported-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Tested-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2015-08-06 14:13:02 +02:00
Daniel Vetter
bf9e37baac drm: Remove __drm_modeset_lock_all
The last user is gone, no need for trylocking any more in this legacy
helper.

Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2015-08-06 14:13:02 +02:00
Daniel Vetter
dd908c864d drm/fb-helper: Stop using trylocks in force_restore
Since the panic handling is gone this is only used for force-restoring
the fbdev/fbcon from sysrq, and that's done with a work item. No need
any more to do trylocks, we can just do normal locking.

Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2015-08-06 14:13:01 +02:00
Daniel Vetter
c50bfd08d6 drm/fbdev: Return -EBUSY when oopsing
Trying to do anything with kms drivers when oopsing has become a
failing proposition. But since we can end up in the fbdev code simply
due to the console unblanking that's done unconditionally just
removing our panic handler isn't enough. We need to block all fbdev
callbacks when oopsing.

There was already one in the blank handler, but it failed silently.
That makes it impossible for drivers (like i915) who subclass these
functions to figure this out.

Instead consistently return -EBUSY so that everyone knows that we
really don't want to be bothered right now. This also allows us to
remove a pile of FIXMEs from the i915 fbdev code (since due to the
failure code they now won't attempt to grab dangerous locks any more).

Cc: Dave Airlie <airlied@gmail.com>
Cc: Rodrigo Vivi <rodrigo.vivi@gmail.com>
Reviewed-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2015-08-06 14:13:01 +02:00
Archit Taneja
85f2edf211 drm/fb_cma_helper: Use new drm_fb_helper functions
Use the newly created wrapper drm_fb_helper functions instead of calling
core fbdev functions directly. They also simplify the fb_info creation.

Cc: Lars-Peter Clausen <lars@metafoo.de>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-08-06 14:13:00 +02:00
Archit Taneja
41ba2f3415 drm/udl: Use new drm_fb_helper functions
Use the newly created wrapper drm_fb_helper functions instead of calling
core fbdev functions directly. They also simplify the fb_info creation.

v2:
- remove unused variable device in udlfb_create

Cc: David Airlie <airlied@linux.ie>
Cc: Haixia Shi <hshi@chromium.org>
Cc: "Stéphane Marchesin" <marcheu@chromium.org>

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-08-06 14:13:00 +02:00
Archit Taneja
e7cd84cf7d drm/qxl: Use new drm_fb_helper functions
Use the newly created wrapper drm_fb_helper functions instead of calling
core fbdev functions directly. They also simplify the fb_info creation.

Cc: David Airlie <airlied@linux.ie>
Cc: Frediano Ziglio <fziglio@redhat.com>
Cc: Maarten Lankhorst <maarten.lankhorst@canonical.com>

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-08-06 14:12:59 +02:00
Archit Taneja
546187c85d drm/gma500: Use new drm_fb_helper functions
Use the newly created wrapper drm_fb_helper functions instead of calling
core fbdev functions directly. They also simplify the fb_info creation.

v2:
- removed unused variable 'device' in psbfb_create

Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Reviewed-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-08-06 14:12:59 +02:00
Archit Taneja
7c7d4507fb drm/exynos: Use new drm_fb_helper functions
Use the newly created wrapper drm_fb_helper functions instead of calling
core fbdev functions directly. They also simplify the fb_info creation.

v2:
- Remove unnecessary dealloc cmap in error handling path

Cc: Inki Dae <inki.dae@samsung.com>
Cc: Joonyoung Shim <jy0922.shim@samsung.com>
Cc: Seung-Woo Kim <sw0312.kim@samsung.com>

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-08-06 14:12:58 +02:00
Archit Taneja
778014f0c8 drm/msm: Use new drm_fb_helper functions
Use the newly created wrapper drm_fb_helper functions instead of calling
core fbdev functions directly. They also simplify the fb_info creation.

Cc: Rob Clark <robdclark@gmail.com>
Cc: Stephane Viau <sviau@codeaurora.org>
Cc: Hai Li <hali@codeaurora.org>

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-08-06 14:12:58 +02:00
Archit Taneja
0f7d9052fb drm/tegra: Use new drm_fb_helper functions
Use the newly created wrapper drm_fb_helper functions instead of calling
core fbdev functions directly. They also simplify the fb_info creation.

v2:
- Fix up error handling path in tegra_fbdev_probe

Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: "Terje Bergström" <tbergstrom@nvidia.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-08-06 14:12:57 +02:00
Archit Taneja
990e8440f2 drm/ast: Use new drm_fb_helper functions
Use the newly created wrapper drm_fb_helper functions instead of calling
core fbdev functions directly. They also simplify the fb_info creation.

Cleaned up the error handling in astfb_create a bit.

v2:
- removed unused variable 'device' in astfb_create

Cc: David Airlie <airlied@linux.ie>
Cc: "Y.C. Chen" <yc_chen@aspeedtech.com>
Cc: Alex Deucher <alexander.deucher@amd.com>

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-08-06 14:12:57 +02:00
Archit Taneja
e8b70e4dd7 drm/armada: Use new drm_fb_helper functions
Use the newly created wrapper drm_fb_helper functions instead of calling
core fbdev functions directly. They also simplify the fb_info creation.

Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-08-06 14:12:56 +02:00
Archit Taneja
df3b031cef drm/rockchip: Use new drm_fb_helper functions
Use the newly created wrapper drm_fb_helper functions instead of calling
core fbdev functions directly. They also simplify the fb_info creation.

This is an effort to create a top level drm fbdev emulation option.

Cc: Mark Yao <mark.yao@rock-chips.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Daniel Kurtz <djkurtz@chromium.org>

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-08-06 14:12:56 +02:00
Archit Taneja
fdefa58a50 drm/fb_helper: Create a wrapper for fb_set_suspend
Some drm drivers call fb_set_suspend. Create a drm_fb_helper function
that wraps around these calls.

This is part of an effort to prevent drm drivers from calling fbdev
functions directly, in order to make fbdev emulation a top level drm
option.

v3:
- Fixed kerneldoc errors

v2:
- Added kerneldocs
- Added a check for non-NULL fb_helper before proceeding. This will
  make the helpers work when we have a module param for fbdev emulation
- Follow the drm way of aligning of arguments in func definitions

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-08-06 14:12:56 +02:00
Archit Taneja
742547b73d drm/fb_helper: Create wrappers for blit, copyarea and fillrect funcs
drm drivers that emulate fbdev populate their fb_fillrect, fb_copyarea
and fb_imageblit fb_ops with the help of cfb_* or sys_* fbdev core
helper functions.

Create drm_fb_helper functions that wrap around these calls.

This is part of an effort to prevent drm drivers from calling fbdev
functions directly, in order to make fbdev emulation a top level drm
option.

v3:
- Fixed kerneldoc errors

v2:
- Added kerneldocs
- Follow the drm way of aligning of arguments in func definitions
- Remove unnecessary checks for non NULL fb_info

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-08-06 14:12:55 +02:00
Archit Taneja
cbb1a82e56 drm/fb_helper: Create wrappers for fb_sys_read/write funcs
Some drm drivers populate their fb_ops with fb_sys_read/write fb sysfs
ops.

Create a drm_fb_helper function that wraps around these calls.

This is part of an effort to prevent drm drivers from calling fbdev
functions directly, in order to make fbdev emulation a top level drm
option.

v3:
- Fix kerneldoc errors

v2:
- Added kerneldocs
- Follow the drm way of aligning of arguments in func definitions
- Remove unnecessary checks for non NULL fb_info

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-08-06 14:12:55 +02:00
Archit Taneja
47074ab795 drm/fb_helper: Create a wrapper for unlink_framebuffer
Some drm drivers call unlink_framebuffer. Create a drm_fb_helper function
that wraps around these calls.

This is part of an effort to prevent drm drivers from calling fbdev
functions directly, in order to make fbdev emulation a top level drm
option.

v2:
- Added kerneldocs
- Added a check for non-NULL fb_helper before proceeding. This will
  make the helpers work when we have a module param for fbdev emulation

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-08-06 14:12:54 +02:00
Archit Taneja
b8017d6c33 drm/fb_helper: Add drm_fb_helper functions to manage fb_info creation
Every drm driver calls framebuffer_alloc, fb_alloc_cmap,
unregister_framebuffer, fb_dealloc_cmap and framebuffer_release in
order to emulate fbdev support.

Create drm_fb_helper functions that perform the above operations.

This is part of an effort to prevent drm drivers from calling fbdev
functions directly. It also removes repetitive code from drivers.

There are some drivers that call alloc_apertures after framebuffer_alloc
and some that don't. Make the helper always call alloc_apertures. This
would make certain drivers allocate memory for apertures but not use
them. Since it's a small amount of memory, it shouldn't be an issue.

v2:
- Added kerneldocs
- Added a check for non-NULL fb_helper before proceeding. This will
  make the helpers work when we have a module param for fbdev emulation

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-08-06 14:12:54 +02:00
Daniel Vetter
c201d00f4a drm/omap: Fixup compile fail
Maarten didn't fully test his patches on all drm drivers and
apparently missed a few places when grepping.

Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2015-08-06 14:09:35 +02:00
Maarten Lankhorst
8c10342cb4 drm/atomic: Update legacy DPMS state during modesets, v3.
This is required for DPMS to work correctly, during a modeset
the DPMS property should be turned off, unless the state is
crtc is made active in which case it should be set to DPMS on.

Changes since v1:
- Set DPMS to off when a connector is removed from a crtc too.
- Update the legacy dpms property too.
- Add an exception for the legacy dpms paths, it updates its own state.
Changes since v2:
- Do not preserve dpms property.

Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-07-27 16:23:29 +02:00
Maarten Lankhorst
9a69a9ac20 drm: Make the connector dpms callback return a value, v2.
This is required to properly handle failing dpms calls.
When making a wait in i915 interruptible, I've noticed
that the dpms sequence could fail with -ERESTARTSYS because
it was waiting interruptibly for flips. So from now on
allow drivers to fail in their connector dpms callback.

Encoder and crtc dpms callbacks are unaffected.

Changes since v1:
- Update kerneldoc for the drm helper functions.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
[danvet: Resolve conflicts due to different merge order.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-07-27 16:23:28 +02:00
Maarten Lankhorst
613d2b2721 drm/atomic: pass old crtc state to atomic_begin/flush.
In intel it's useful to keep track of some state changes with old
crtc state vs new state, for example to disable initial planes or
when a modeset's prevented during fastboot.

Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com>
[danvet: squash in fixup for exynos provided by Maarten.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-07-27 16:23:22 +02:00
Maarten Lankhorst
fc596660dd drm/atomic: add connectors_changed to separate it from mode_changed, v2
This can be a separate case from mode_changed, when connectors stay the
same but only the mode is different. Drivers may choose to implement specific
optimizations to prevent a full modeset for this case.

Changes since v1:
- Update kerneldocs slightly.

Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2015-07-27 10:06:38 +02:00
Dave Airlie
dcd14dd957 Merge tag 'topic/connector-locking-2015-07-23' of git://anongit.freedesktop.org/drm-intel into drm-next
connector hotplug locking cleanup and fixes to make it save against
atomic. Note that because of depencies this is based on top of the
drm-intel-next pull, so that one needs to go in before this one.

I've also thrown in the mode_group removal on top since it's defunct,
never worked really, no one seems to care and the code can be resurrected
easily.

* tag 'topic/connector-locking-2015-07-23' of git://anongit.freedesktop.org/drm-intel:
  drm: gc now dead mode_group code
  drm: Stop filtering according to mode_group in getresources
  drm: Roll out drm_for_each_{plane,crtc,encoder}
  drm/cma-helper: Fix locking in drm_fb_cma_debugfs_show
  drm: Roll out drm_for_each_connector more
  drm: Amend connector list locking rules
  drm/radeon: Take all modeset locks for DP MST hotplug
  drm/i915: Take all modeset locks for DP MST hotplug
  drm: Check locking in drm_for_each_fb
  drm/i915: Use drm_for_each_fb in i915_debugfs.c
  drm: Check locking in drm_for_each_connector
  drm/fbdev-helper: Grab mode_config.mutex in drm_fb_helper_single_add_all_connectors
  drm/probe-helper: Grab mode_config.mutex in poll_init/enable
  drm: Add modeset object iterators
  drm: Simplify drm_for_each_legacy_plane arguments
2015-07-24 14:30:29 +10:00
Dave Airlie
ce4c464b93 Merge tag 'topic/crc-pmic-2015-07-23' of git://anongit.freedesktop.org/drm-intel into drm-next
crystalcove pmic support from Shobhit. Patch series has all acks/r-bs from
other mainainers so ok to pull into drm-next. But I'm cc'ing all other
maintainers as fyi and in case they want to pull it into their trees too
to avoid conflicts.

* tag 'topic/crc-pmic-2015-07-23' of git://anongit.freedesktop.org/drm-intel:
  mfd: Add GPIOLIB dependency if INTEL_SOC_PMIC is to be enabled
  drm/i915: Backlight control using CRC PMIC based PWM driver
  drm/i915: Use the CRC gpio for panel enable/disable
  pwm: crc: Add Crystalcove (CRC) PWM driver
  mfd: intel_soc_pmic_core: ADD PWM lookup table for CRC PMIC based PWM
  mfd: intel_soc_pmic_crc: Add PWM cell device for Crystalcove PMIC
  mfd: intel_soc_pmic_core: Add lookup table for Panel Control as GPIO signal
  gpiolib: Add support for removing registered consumer lookup table
2015-07-24 14:30:04 +10:00
Dave Airlie
f60de97674 Merge tag 'drm-intel-next-2015-07-17' of git://anongit.freedesktop.org/drm-intel into drm-next
- prelim hw support dropped for skl after Damien fixed an ABI issue around
  planes
- legacy modesetting is done using atomic infrastructure now (Maarten)!
- more gen9 workarounds (Arun&Nick)
- MOCS programming (cache control for better performance) for skl/bxt
- vlv/chv dpll improvements (Ville)
- PSR fixes from Rodrigo
- fbc improvements from Paulo
- plumb requests into execlist submit functions (Mika)
- opregion code cleanup from Jani
- resource streamer support from Abdiel for mesa
- final fixes for 12bpc hdmi + enabling support from Ville
drm-intel-next-2015-07-03:
- dsi improvements (Gaurav)
- bxt ddi dpll hw state readout (Imre)
- chv dvfs support and overall wm improvements for both vlv and chv (Ville)
- ppgtt polish from Mika and Michel
- cdclk support for bxt (Bob Pauwe)
- make frontbuffer tracking more precise
- OLR removal (John Harrison)
- per-ctx WA batch buffer support (Arun Siluvery)
- remvoe KMS Kconfig option (Chris)
- more hpd handling refactoring from Jani
- use atomic states throughout modeset code and integrate with atomic plane
  update (Maarten)
drm-intel-next-2015-06-19:
- refactoring hpd irq handlers (Jani)
- polish skl dpll code a bit (Damien)
- dynamic cdclk adjustement (Ville & Mika)
- fix up 12bpc hdmi and enable it for real again (Ville)
- extend hsw cmd parser to be useful for atomic configuration (Franscico Jerez)
- even more atomic conversion and rolling state handling out across modeset code
  from Maarten & Ander
- fix DRRS idleness detection (Ramalingam)
- clean up dsp address alignment handling (Ville)
- some fbc cleanup patches from Paulo
- prevent hard-hangs when trying to reset the gpu on skl (Mika)

* tag 'drm-intel-next-2015-07-17' of git://anongit.freedesktop.org/drm-intel: (386 commits)
  drm/i915: Update DRIVER_DATE to 20150717
  drm/i915/skl: Drop the preliminary_hw_support flag
  drm/i915/skl: Don't expose the top most plane on gen9 display
  drm/i915: Fix divide by zero on watermark update
  drm/i915: Invert fastboot check
  drm/i915: Clarify logic for initial modeset
  drm/i915: Unconditionally check gmch pfit state
  drm/i915: always disable irqs in intel_pipe_update_start
  drm/i915: Remove use of runtime pm in atomic commit functions
  drm/i915: Call plane update functions directly from intel_atomic_commit.
  drm/i915: Use full atomic modeset.
  drm/i915/gen9: Add WaSetDisablePixMaskCammingAndRhwoInCommonSliceChicken
  drm/i915/gen9: Add WaFlushCoherentL3CacheLinesAtContextSwitch workaround
  drm/i915/gen9: Add WaDisableCtxRestoreArbitration workaround
  drm/i915: Enable WA batch buffers for Gen9
  drm/i915/gen9: Implement WaDisableKillLogic for gen 9
  drm/i915: Use expcitly fixed type in compat32 structs
  drm/i915: Fix noatomic crtc disabling, v2.
  drm/i915: fill in more mode members
  drm/i915: Added BXT check in HAS_CORE_RING_FREQ macro
  ...
2015-07-24 14:29:06 +10:00
Dave Airlie
fa78ceab99 Merge tag 'topic/drm-misc-2015-07-23' of git://anongit.freedesktop.org/drm-intel into drm-next
Update drm-misc pull request since the first one didn't go in yet. Few
atomic helper patches, rejecting some old dri1 crap for modern drivers and
a few trivial things on top.

* tag 'topic/drm-misc-2015-07-23' of git://anongit.freedesktop.org/drm-intel:
  drm/mgag200: remove unneeded variable
  drm/mgag200: remove unused variables
  drm/atomic: Only update crtc->x/y if it's part of the state, v2.
  drm/fb: drop panic handling
  drm: Fix warning with make xmldocs caused by drm_irq.c
  drm/gem: rip out drm vma accounting for gem mmaps
  drm/fourcc: Add formats R8, RG88, GR88
  drm/atomic: Cleanup on error properly in the atomic ioctl.
  drm: Update plane->fb also for page_flip
  drm: remove redundant code form drm_ioc32.c
  drm: reset empty state in transitional helpers
  drm/crtc-helper: Fixup error handling in drm_helper_crtc_mode_set
  drm/atomic: Update old_fb after setting a property.
  drm: Remove useless blank line
  drm: Reject DRI1 hw lock ioctl functions for kms drivers
  drm: Convert drm_legacy_ctxbitmap_init to void return type
  drm: Turn off Legacy Context Functions
2015-07-24 14:28:16 +10:00
Daniel Vetter
3fdefa399e drm: gc now dead mode_group code
Two nice things here:
- drm_dev_register will truly register everything in the right order
  if the driver doesn't have a ->load callback. Before this we had to
  init the primary mode_group after the device nodes where already
  registered.

- Less things to keep track of when reworking the connector locking,
  yay!

Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2015-07-22 17:29:38 +02:00
Daniel Vetter
9c7060f7e3 drm: Stop filtering according to mode_group in getresources
It's been dead code since forever since mode groups haven't ever been
implemented. On top of that it's also been non-functional since we
only ever filtered the getresources ioctl and not any of the others
nor the mode object lookup code.

Given overwhelming evidence it looks like this isn't a feature we
need, hence remove it.

Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2015-07-22 17:29:37 +02:00
Daniel Vetter
e4f6254632 drm: Roll out drm_for_each_{plane,crtc,encoder}
Remaining manual work in the drm core&helpers. Nothing special here,
no surprises.

Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2015-07-22 17:29:37 +02:00
Daniel Vetter
9e75c0ef14 drm/cma-helper: Fix locking in drm_fb_cma_debugfs_show
This function takes two locks, both of them the wrong ones. This
wasn't an oversight from my fb locking rework since both patches
landed in parallel. We really only need fb_lock when walking that
list, since everything we can reach from that is refcounted properly
already.

v2: Drop unused dev spotted by 0day.

Cc: Rob Clark <robdclark@gmail.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2015-07-22 17:29:24 +02:00
Daniel Vetter
9a9f5ce8db drm: Roll out drm_for_each_connector more
Now that we also grab the connection_mutex and so fixed the race with
atomic modeset we can use the iterator there too.

The other special case is drm_connector_unplug_all which would have a
locking inversion with the sysfs store/show functions if we'd grab the
mode_config.mutex around the unplug. We could just grab
connection_mutex instead, but that's a bit too much a dirty trick for
my taste. Also it's only used by udl, which doesn't do any other kind
of connector hotplugging, so should be race-free. Hence just stick
with a comment for now.

Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2015-07-22 16:25:47 +02:00
Daniel Vetter
2ee6bcdcfa drm/radeon: Take all modeset locks for DP MST hotplug
Similar with the i915 take all modeset locks for mst hotplug. This is
needed to make sure radeon holds both mode_config.mutex and
mode_config.connection_mutex when updating the connector_list, which
is the new (interim) locking regime we want for that.

Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2015-07-22 16:25:46 +02:00
Daniel Vetter
8bb4da1df5 drm/i915: Take all modeset locks for DP MST hotplug
While auditing various users of the connector/encoder lists I realized
that the atomic code is a very prolific user of them. And it only ever
grabs the mode_config->connection_mutex, but not the
mode_config->mutex like all the other code walking encoder/connector
lists.

The problem is that we can't grab the mode_config.mutex late in atomic
code since that would lead to locking inversions. And we don't want to
grab it unconditionally like the legacy set_config modeset path since
that would render all the fine-grained locking moot.

Instead just grab more locks in the dp mst hotplug code. Note that
drm_connector_init (which is the one adding the connector to these
lists) already uses drm_modeset_lock_all.

The other reason for grabbing all locks is that the dpms off in the
unplug function amounts to a modeset, so better to take all required
locks for that.

Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2015-07-22 16:25:46 +02:00
Daniel Vetter
3a58ee1065 drm/i915: Use drm_for_each_fb in i915_debugfs.c
Just so I have a user for this macro.

v2: Use the right macro - somehow I thought gcc should scream at me,
but list_for_each isn't really typesafe unfortunately. Spotted by
Ville.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2015-07-22 16:25:46 +02:00
Daniel Vetter
169faecadd drm/fbdev-helper: Grab mode_config.mutex in drm_fb_helper_single_add_all_connectors
This is now truly only duct-tape to keep locking checks happy since
calling this function when hpd or polling are already enabled is a
bug. The fbdev helper can't cope with hotplug changes yet at this
point, only after that.

Otoh a bit more robustness in this function can't hurt, and with this
fbdev can actually cope with hotplug changes. And it's also more
consistent with the connector hotadd/remove dp mst needs to do.
Therefore document this as new official behavior.

Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2015-07-22 16:25:45 +02:00
Daniel Vetter
8c4ccc4ab6 drm/probe-helper: Grab mode_config.mutex in poll_init/enable
So on first looks this seems superflous since drivers should ensure
correct ordering to not make this a problem. Otoh ordering constraints
between hdp, fbdev load and enabling polling are already tricky on
some hardware and it helps to be more robust.

But the real goal is to just shut up a locking WARN_ON I'd like to
add, which means init code gets some additional locks just for
uniformity.

v2: Also grab the lock for the public poll_enable, not just poll_init
which is used for resume, with the same justification.

Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2015-07-22 16:25:45 +02:00
Daniel Vetter
6295d607ad drm: Add modeset object iterators
And roll them out across drm_* files. The point here isn't code
prettification (it helps with that too) but that some of these lists
aren't static any more. And having macros will gives us a convenient
place to put locking checks into.

I didn't add an iterator for props since that's only used by a
list_for_each_entry_safe in the driver teardown code.

Search&replace was done with the below cocci spatch. Note that there's
a bunch more places that didn't match and which would need some manual
changes, but I've intentially left these out for this mostly automated
patch.

iterator name drm_for_each_crtc;
struct drm_crtc *crtc;
struct drm_device *dev;
expression head;
@@
- list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
+ drm_for_each_crtc (crtc, dev) {
...
}

@@
iterator name drm_for_each_encoder;
struct drm_encoder *encoder;
struct drm_device *dev;
expression head;
@@
- list_for_each_entry(encoder, &dev->mode_config.encoder_list, head) {
+ drm_for_each_encoder (encoder, dev) {
...
}

@@
iterator name drm_for_each_fb;
struct drm_framebuffer *fb;
struct drm_device *dev;
expression head;
@@
- list_for_each_entry(fb, &dev->mode_config.fb_list, head) {
+ drm_for_each_fb (fb, dev) {
...
}

@@
iterator name drm_for_each_connector;
struct drm_connector *connector;
struct drm_device *dev;
expression head;
@@
- list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+ drm_for_each_connector (connector, dev) {
...
}

Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2015-07-22 16:25:45 +02:00
Daniel Vetter
4ea50e99bd drm: Simplify drm_for_each_legacy_plane arguments
No need to pass the planelist when everyone just uses
dev->mode_config.plane_list anyway.

I want to add a pile more of iterators with unified (obj, dev)
arguments. This is just prep.

Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2015-07-22 16:25:45 +02:00