linux.git/drivers/gpu/drm/drm_drv.c, branch v4.18

Merge tag 'drm-misc-next-fixes-2018-06-15' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

2018-06-20T06:58:31+00:00

Single fix for v4.18:
- Fix possible race conditions while unplugging DRM device.

Signed-off-by: Dave Airlie 
Link: https://patchwork.freedesktop.org/patch/msgid/1fd8b7d1-e60a-0105-dfb5-d36f99ea0239@linux.intel.com

Merge tag 'drm-next-2018-06-06-1' of git://anongit.freedesktop.org/drm/drm

2018-06-06T15:16:33+00:00

Pull drm updates from Dave Airlie:
 "This starts to support NVIDIA volta hardware with nouveau, and adds
  amdgpu support for the GPU in the Kabylake-G (the intel + radeon
  single package chip), along with some initial Intel icelake enabling.

  Summary:

  New Drivers:
   - v3d - driver for broadcom V3D V3.x+ hardware
   - xen-front - XEN PV display frontend

  core:
   - handle zpos normalization in the core
   - stop looking at legacy pointers in atomic paths
   - improved scheduler documentation
   - improved aspect ratio validation
   - aspect ratio support for 64:27 and 256:135
   - drop unused control node code.

  i915:
   - Icelake (ICL) enabling
   - GuC/HuC refactoring
   - PSR/PSR2 enabling and fixes
   - DPLL management refactoring
   - DP MST fixes
   - NV12 enabling
   - HDCP improvements
   - GEM/Execlist/reset improvements
   - GVT improvements
   - stolen memory first 4k fix

  amdgpu:
   - Vega 20 support
   - VEGAM support (Kabylake-G)
   - preOS scanout buffer reservation
   - power management gfxoff support for raven
   - SR-IOV fixes
   - Vega10 power profiles and clock voltage control
   - scatter/gather display support on CZ/ST

  amdkfd:
   - GFX9 dGPU support
   - userptr memory mapping

  nouveau:
   - major refactoring for Volta GV100 support

  tda998x:
   - HDMI i2c CEC support

  etnaviv:
   - removed unused logging code
   - license text cleanups
   - MMU handling improvements
   - timeout fence fix for 50 days uptime

  tegra:
   - IOMMU support in gr2d/gr3d drivers
   - zpos support

  vc4:
   - syncobj support
   - CTM, plane alpha and async cursor support

  analogix_dp:
   - HPD and aux chan fixes

  sun4i:
   - MIPI DSI support

  tilcdc:
   - clock divider fixes for OMAP-l138 LCDK board

  rcar-du:
   - R8A77965 support
   - dma-buf fences fixes
   - hardware indexed crtc/du group handling
   - generic zplane property support

  atmel-hclcdc:
   - generic zplane property support

  mediatek:
   - use generic video mode function

  exynos:
   - S5PV210 FIMD variant support
   - IPP v2 framework
   - more HW overlays support"

* tag 'drm-next-2018-06-06-1' of git://anongit.freedesktop.org/drm/drm: (1286 commits)
  drm/amdgpu: fix 32-bit build warning
  drm/exynos: fimc: signedness bug in fimc_setup_clocks()
  drm/exynos: scaler: fix static checker warning
  drm/amdgpu: Use dev_info() to report amdkfd is not supported for this ASIC
  drm/amd/display: Remove use of division operator for long longs
  drm/amdgpu: Update GFX info structure to match what vega20 used
  drm/amdgpu/pp: remove duplicate assignment
  drm/sched: add rcu_barrier after entity fini
  drm/amdgpu: move VM BOs on LRU again
  drm/amdgpu: consistenly use VM moved flag
  drm/amdgpu: kmap PDs/PTs in amdgpu_vm_update_directories
  drm/amdgpu: further optimize amdgpu_vm_handle_moved
  drm/amdgpu: cleanup amdgpu_vm_validate_pt_bos v2
  drm/amdgpu: rework VM state machine lock handling v2
  drm/amdgpu: Add runtime VCN PG support
  drm/amdgpu: Enable VCN static PG by default on RV
  drm/amdgpu: Add VCN static PG support on RV
  drm/amdgpu: Enable VCN CG by default on RV
  drm/amdgpu: Add static CG control for VCN on RV
  drm/exynos: Fix default value for zpos plane property
  ...

drm: Fix possible race conditions while unplugging DRM device

2018-05-31T07:36:28+00:00

When unplugging a hotpluggable DRM device we first unregister it
with drm_dev_unregister and then set drm_device.unplugged flag which
is used to mark device critical sections with drm_dev_enter()/
drm_dev_exit() preventing access to device resources that are not
available after the device is gone.
But drm_dev_unregister may lead to hotplug uevent(s) fired to
user-space on card and/or connector removal, thus making it possible
for user-space to try accessing a disconnected device.

Fix this by first making sure device is properly marked as
disconnected and only then unregister it.

Fixes: bee330f3d672 ("drm: Use srcu to protect drm_device.unplugged")

Signed-off-by: Oleksandr Andrushchenko 
Reported-by: Andrii Chepurnyi 
Cc: "Noralf Trønnes" 
Reviewed-by: Daniel Vetter 
Link: https://patchwork.freedesktop.org/patch/msgid/20180522141304.18646-1-andr2000@gmail.com

drm: Match sysfs name in link removal to link creation

2018-05-11T13:06:05+00:00

This patch matches the sysfs name used in the unlinking with the
linking function. Otherwise, remove_compat_control_link() fails to remove
sysfs created by create_compat_control_link() in drm_dev_register().

Fixes: 6449b088dd51 ("drm: Add fake controlD* symlinks for backwards
compat")
Cc: Dave Airlie 
Cc: Alex Deucher 
Cc: Emil Velikov 
Cc: David Herrmann 
Cc: Greg Kroah-Hartman 
Cc: Daniel Vetter 
Cc: Gustavo Padovan 
Cc: Maarten Lankhorst 
Cc: Sean Paul 
Cc: David Airlie 
Cc: dri-devel@lists.freedesktop.org
Cc:  # v4.10+
Signed-off-by: Haneen Mohammed 
[seanpaul added Fixes and Cc tags]
Signed-off-by: Sean Paul 
Link: https://patchwork.freedesktop.org/patch/msgid/20180511041542.GA4253@haneen-vb

drm: remove all control node code

2018-05-03T19:26:32+00:00

With the ioctl and driver prep done, we can remove everything else.

Reviewed-by: Sean Paul 
Signed-off-by: Daniel Vetter 
Cc: Gustavo Padovan 
Cc: Maarten Lankhorst 
Cc: Sean Paul 
Cc: David Airlie 
Link: https://patchwork.freedesktop.org/patch/msgid/20180420065159.4531-4-daniel.vetter@ffwll.ch

drm: Use srcu to protect drm_device.unplugged

2018-03-29T10:19:20+00:00

Use srcu to protect drm_device.unplugged in a race free manner.
Drivers can use drm_dev_enter()/drm_dev_exit() to protect and mark
sections preventing access to device resources that are not available
after the device is gone.

Suggested-by: Daniel Vetter 
Signed-off-by: Noralf Trønnes 
Signed-off-by: Oleksandr Andrushchenko 
Reviewed-by: Oleksandr Andrushchenko 
Tested-by: Oleksandr Andrushchenko 
Cc: intel-gfx@lists.freedesktop.org
Reviewed-by: Daniel Vetter 
Link: https://patchwork.freedesktop.org/patch/msgid/1522222715-11814-1-git-send-email-andr2000@gmail.com

drm: NULL pointer dereference [null-pointer-deref] (CWE 476) problem

2018-03-06T07:14:16+00:00

The Parfait (version 2.1.0) static code analysis tool found the
following NULL pointer dereference problem.

- drivers/gpu/drm/drm_drv.c
Any calls to drm_minor_get_slot() could result in the return of a NULL
pointer when an invalid DRM device type is encountered.  The
return of NULL was removed with BUG() from drm_minor_get_slot().

Signed-off-by: Joe Moriarty 
Reviewed-by: Steven Sistare 
Signed-off-by: Daniel Vetter 
Link: https://patchwork.freedesktop.org/patch/msgid/20180220191157.100960-3-joe.moriarty@oracle.com

Merge airlied/drm-next into drm-misc-next

2017-11-21T13:17:56+00:00

Bake in the conflict between the drm_print.h extraction and the
addition of DRM_DEBUG_LEASES since we lost it a few too many times.

Also fix a new use of drm_plane_helper_check_state in msm to follow
Ville's conversion in

commit a01cb8ba3f6282934cff65e89ab36b18b14cbe27
Author: Ville Syrjälä 
Date:   Wed Nov 1 22:16:19 2017 +0200

    drm: Move drm_plane_helper_check_state() into drm_atomic_helper.c

Acked-by: Ville Syrjälä 
Signed-off-by: Daniel Vetter

drm: Add new LEASE debug level

2017-10-25T06:31:29+00:00

Separate out lease debugging from the core.

Signed-off-by: Keith Packard 
Signed-off-by: Dave Airlie

drm: Move debug macros out of drmP.h

2017-10-20T17:14:48+00:00

This patch extract DRM_* debug macros from drmP.h to drm_print.h and
move printing related functions used by these macros from drm_drv.[hc]
to drm_print.[hc].

Signed-off-by: Haneen Mohammed 
Signed-off-by: Sean Paul 
Link: https://patchwork.freedesktop.org/patch/msgid/4020bc7c5ffad2af516919f78bb837c7f366b82b.1508297716.git.hamohammed.sa@gmail.com