Commit graph

493 commits

Author SHA1 Message Date
Dave Airlie e9c3ddee6a Merge branch 'drm-next-4.9' of git://people.freedesktop.org/~agd5f/linux into drm-next
First drm-next pull for radeon and amdgpu for 4.9.  Highlights:
- powerplay support for iceland asics
- improved GPU reset (both full asic and per block)
- UVD and VCE powergating for CZ and ST
- VCE clockgating for CZ and ST
- Support for pre-initialized (e.g., zeroed) vram buffers
- ttm cleanups
- virtual display support
- core and radeon/amdgpu support for page_flip_target
- lots of bug fixes and clean ups

* 'drm-next-4.9' of git://people.freedesktop.org/~agd5f/linux: (171 commits)
  drm/amdgpu: use memcpy_toio for VCE firmware upload
  drm/amdgpu: use memcpy_to/fromio for UVD fw upload
  drm/amd/powerplay: delete useless code in iceland_hwmgr.c.
  drm/radeon: switch UVD code to use UVD_NO_OP for padding
  drm/amdgpu: switch UVD code to use UVD_NO_OP for padding
  drm/radeon: add support for UVD_NO_OP register
  drm/amdgpu: add support for UVD_NO_OP register
  drm/amdgpu: fix VCE ib alignment value
  drm/amdgpu: fix IB alignment for UVD
  drm/amd/amdgpu: Print ring name in amdgpu_ib_schedule()
  drm/radeon: remove dead code, si_mc_load_microcode (v2)
  drm/radeon/cik: remove dead code (v2)
  drm/amd/powerplay: avoid NULL dereference, cz_hwmgr.c
  drm/amd/powerplay: avoid NULL pointer dereference
  drm/amdgpu/gmc8: remove dead code (v2)
  drm/amdgpu/gmc7: remove dead code (v2)
  drm/amdgpu: Fix indentation in dce_v8_0_audio_write_sad_regs()
  drm/amdgpu: Use correct mask in dce_v8_0_afmt_setmode() and fix comment typos.
  drm/amdgpu: cleanup amdgpu_vm_bo_update params
  drm/amdgpu: stop adding dummy entry in amdgpu_ttm_placement_init
  ...
2016-08-25 12:59:50 +10:00
Daniel Vetter b3c6c8bfe3 drm: document drm_display_info
We seem to have a bit a mess in how to describe the bus formats, with
a multitude of competing ways. Might be best to consolidate it all and
use MEDIA_BUS_FMT_ also for the hdmi color formats and high color
modes.

Also move all the display_info related functions into drm_connector.c
(there's only one) to group it all together. I did decided against
also moving the edid related display info functions, they seem to fit
better in drm_edid.c. Instead sprinkle a few cross references around.
While at that reduce the kerneldoc for static functions, there's not
point in documenting internals with that much detail really.

v2: Fix typo and move misplaced hunk (Sean).

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/1471034937-651-19-git-send-email-daniel.vetter@ffwll.ch
2016-08-16 18:49:47 +02:00
Daniel Vetter 5221719517 drm: Extract drm_connector.[hc]
Pulls in quite a lot of connector related structures (cmdline mode,
force/status enums, display info), but I think that all makes perfect
sense.

Also had to move a few more core kms object stuff into drm_modeset.h.

And as a first cleanup remove the kerneldoc for the 2 connector IOCTL
- DRM core docs are aimed at drivers, no point documenting internal in
excruciating detail.

v2: And also pull in all the connector property code.

Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1471034937-651-14-git-send-email-daniel.vetter@ffwll.ch
2016-08-16 18:48:46 +02:00
Daniel Vetter adebd6fe9f drm: Export drm_property_replace_global_blob
It's really part of the core blob interface, and the drm_connector.c
extraction needs it too.

Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1471034937-651-13-git-send-email-daniel.vetter@ffwll.ch
2016-08-16 18:48:35 +02:00
Daniel Vetter 7520a277d9 drm: Extract drm_framebuffer.[hc]
Also start with drm_modeset.h with the core bits, since we need
to untangle this mess somehow. That allows us to move the drm_modes.h
include to the right spot, except for the temporary connector status
enum. That will get fixed as soon as drm_connector.h exists.

v2: Rebase.

v3: Move drm_crtc_force_disable_all back again, that wasn't meant to
be moved (Sean).

v4: Rebase.

Cc: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-08-16 16:49:03 +02:00
Daniel Vetter 6ab10b76ff drm/kms: Nuke dirty_info property
It was added way back together with the dirty_fb ioctl, but neither
generic xfree86-modesetting nor the vmware driver use it. Everyone is
supposed to just unconditionally call the dirtyfb when they do
frontbuffer rendering.

And since unused uabi is bad uabi (there's reasons we require open
source userspace for everything) let's nuke this.

For reference see

commit 884840aa3c
Author: Jakob Bornecrantz <jakob@vmware.com>
Date:   Thu Dec 3 23:25:47 2009 +0000

    drm: Add dirty ioctl and property

Cc: Jakob Bornecrantz <jakob@vmware.com>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Sinclair Yeh <syeh@vmware.com>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Acked-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1471034937-651-9-git-send-email-daniel.vetter@ffwll.ch
2016-08-16 16:30:50 +02:00
Daniel Vetter 62cacc7939 drm/doc: Fix more kerneldoc/sphinx warnings
These are the leftovers I could only track down using keep_warnings =
True. For some of them we might want to update our style guide on how
to reference structures and constants, not sure ...

Cc: Markus Heiser <markus.heiser@darmarit.de>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: linux-doc@vger.kernel.org
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1471034937-651-1-git-send-email-daniel.vetter@ffwll.ch
2016-08-16 16:09:58 +02:00
Eric Engestrom d382814707 drm: remove const attribute to hint at caller that they now own the memory
Signed-off-by: Eric Engestrom <eric.engestrom@imgtec.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-08-16 14:06:53 +02:00
Eric Engestrom 90844f0004 drm: make drm_get_format_name thread-safe
Signed-off-by: Eric Engestrom <eric@engestrom.ch>
[danvet: Clarify that the returned pointer must be freed with
kfree().]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-08-15 09:25:12 +02:00
Dave Airlie f8725ad1da Merge tag 'topic/drm-misc-2016-08-12' of git://anongit.freedesktop.org/drm-intel into drm-next
- more fence destaging and cleanup (Gustavo&Sumit)
- DRIVER_LEGACY to untangle from DRIVER_MODESET
- drm_mm refactor (Chris)
- fbdev-less compile fies
- clipped plane src/dst rects (Ville)
- + a few mediatek patches that build on top of that (Bibby+Daniel)
- small stuff all over really

* tag 'topic/drm-misc-2016-08-12' of git://anongit.freedesktop.org/drm-intel: (43 commits)
  dma-buf/fence: kerneldoc: remove spurious section header
  dma-buf/fence: kerneldoc: remove unused struct members
  Revert "gpu: drm: omapdrm: dss-of: add missing of_node_put after calling of_parse_phandle"
  drm: Protect fb_defio in drivers with CONFIG_KMS_FBDEV_EMULATION
  drm/radeon|amgpu: Make fbdev emulation optional
  drm/vmwgfx: select CONFIG_FB
  drm: Remove superflous linux/fb.h includes
  drm/fb-helper: Add a dummy remove_conflicting_framebuffers
  dma-buf/sync_file: only enable fence signalling on poll()
  Documentation: add doc for sync_file_get_fence()
  dma-buf/sync_file: add sync_file_get_fence()
  dma-buf/sync_file: refactor fence storage in struct sync_file
  dma-buf/fence-array: add fence_is_array()
  drm/dp_helper: Rate limit timeout errors from drm_dp_i2c_do_msg()
  drm/dp_helper: Print first error received on failure in drm_dp_dpcd_access()
  drm: Add ratelimited versions of the DRM_DEBUG* macros
  drm: Make sure drm_vblank_no_hw_counter isn't abused
  drm/mediatek: Fix mtk_atomic_complete for runtime_pm
  drm/mediatek: plane: Use FB's format's cpp to compute x offset
  drm/mediatek: plane: Merge mtk_plane_enable into mtk_plane_atomic_update
  ...
2016-08-15 16:46:36 +10:00
Michel Dänzer f837297ad8 drm: Add DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE/RELATIVE flags v2
These flags allow userspace to explicitly specify the target vertical
blank period when a flip should take effect.

v2:
* Add new struct drm_mode_crtc_page_flip_target instead of modifying
  struct drm_mode_crtc_page_flip, to make sure all existing userspace
  code keeps compiling (Daniel Vetter)

Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-08-10 14:28:09 -04:00
Michel Dänzer c229bfbbd0 drm: Add page_flip_target CRTC hook v2
Mostly the same as the existing page_flip hook, but takes an additional
parameter specifying the target vertical blank period when the flip
should take effect.

v2:
* Add curly braces around else statement corresponding to an if block
  with curly braces (Alex Deucher)
* Call drm_crtc_vblank_put in the error case (Daniel Vetter)
* Clarify entry point documentation comment (Daniel Vetter)

Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-08-10 14:27:51 -04:00
Joonas Lahtinen 31ad61e4af drm: BIT(DRM_ROTATE_?) -> DRM_ROTATE_?
Only property creation uses the rotation as an index, so convert the
to figure the index when needed.

v2: Use the new defines to build the _MASK defines (Sean)

Cc: intel-gfx@lists.freedesktop.org
Cc: linux-arm-msm@vger.kernel.org
Cc: freedreno@lists.freedesktop.org
Cc: malidp@foss.arm.com
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Liviu Dudau <Liviu.Dudau@arm.com>
Cc: Sean Paul <seanpaul@chromium.org>
Acked-by: Liviu Dudau <Liviu.Dudau@arm.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> (v1)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1469771405-17653-1-git-send-email-joonas.lahtinen@linux.intel.com
2016-08-08 14:17:56 -04:00
Daniel Vetter 5c6c201ccb drm: Paper over locking inversion after registration rework
drm_connector_register_all requires a few too many locks because our
connector_list locking is busted. Add another FIXME+hack to work
around this. This should address the below lockdep splat:

======================================================
[ INFO: possible circular locking dependency detected ]
4.7.0-rc5+ #524 Tainted: G           O
-------------------------------------------------------
kworker/u8:0/6 is trying to acquire lock:
 (&dev->mode_config.mutex){+.+.+.}, at: [<ffffffff815afde0>] drm_modeset_lock_all+0x40/0x120

but task is already holding lock:
 ((fb_notifier_list).rwsem){++++.+}, at: [<ffffffff810ac195>] __blocking_notifier_call_chain+0x35/0x70

which lock already depends on the new lock.

the existing dependency chain (in reverse order) is:

-> #1 ((fb_notifier_list).rwsem){++++.+}:
       [<ffffffff810df611>] lock_acquire+0xb1/0x200
       [<ffffffff819a55b4>] down_write+0x44/0x80
       [<ffffffff810abf91>] blocking_notifier_chain_register+0x21/0xb0
       [<ffffffff814c7448>] fb_register_client+0x18/0x20
       [<ffffffff814c6c86>] backlight_device_register+0x136/0x260
       [<ffffffffa0127eb2>] intel_backlight_device_register+0xa2/0x160 [i915]
       [<ffffffffa00f46be>] intel_connector_register+0xe/0x10 [i915]
       [<ffffffffa0112bfb>] intel_dp_connector_register+0x1b/0x80 [i915]
       [<ffffffff8159dfea>] drm_connector_register+0x4a/0x80
       [<ffffffff8159fe44>] drm_connector_register_all+0x64/0xf0
       [<ffffffff815a2a64>] drm_modeset_register_all+0x174/0x1c0
       [<ffffffff81599b72>] drm_dev_register+0xc2/0xd0
       [<ffffffffa00621d7>] i915_driver_load+0x1547/0x2200 [i915]
       [<ffffffffa006d80f>] i915_pci_probe+0x4f/0x70 [i915]
       [<ffffffff814a2135>] local_pci_probe+0x45/0xa0
       [<ffffffff814a349b>] pci_device_probe+0xdb/0x130
       [<ffffffff815c07e3>] driver_probe_device+0x223/0x440
       [<ffffffff815c0ad5>] __driver_attach+0xd5/0x100
       [<ffffffff815be386>] bus_for_each_dev+0x66/0xa0
       [<ffffffff815c002e>] driver_attach+0x1e/0x20
       [<ffffffff815bf9be>] bus_add_driver+0x1ee/0x280
       [<ffffffff815c1810>] driver_register+0x60/0xe0
       [<ffffffff814a1a10>] __pci_register_driver+0x60/0x70
       [<ffffffffa01a905b>] i915_init+0x5b/0x62 [i915]
       [<ffffffff8100042d>] do_one_initcall+0x3d/0x150
       [<ffffffff811a935b>] do_init_module+0x5f/0x1d9
       [<ffffffff81124416>] load_module+0x20e6/0x27e0
       [<ffffffff81124d63>] SYSC_finit_module+0xc3/0xf0
       [<ffffffff81124dae>] SyS_finit_module+0xe/0x10
       [<ffffffff819a83a9>] entry_SYSCALL_64_fastpath+0x1c/0xac

-> #0 (&dev->mode_config.mutex){+.+.+.}:
       [<ffffffff810df0ac>] __lock_acquire+0x10fc/0x1260
       [<ffffffff810df611>] lock_acquire+0xb1/0x200
       [<ffffffff819a3097>] mutex_lock_nested+0x67/0x3c0
       [<ffffffff815afde0>] drm_modeset_lock_all+0x40/0x120
       [<ffffffff8158f79b>] drm_fb_helper_restore_fbdev_mode_unlocked+0x2b/0x80
       [<ffffffff8158f81d>] drm_fb_helper_set_par+0x2d/0x50
       [<ffffffffa0105f7a>] intel_fbdev_set_par+0x1a/0x60 [i915]
       [<ffffffff814c13c6>] fbcon_init+0x586/0x610
       [<ffffffff8154d16a>] visual_init+0xca/0x130
       [<ffffffff8154e611>] do_bind_con_driver+0x1c1/0x3a0
       [<ffffffff8154eaf6>] do_take_over_console+0x116/0x180
       [<ffffffff814bd3a7>] do_fbcon_takeover+0x57/0xb0
       [<ffffffff814c1e48>] fbcon_event_notify+0x658/0x750
       [<ffffffff810abcae>] notifier_call_chain+0x3e/0xb0
       [<ffffffff810ac1ad>] __blocking_notifier_call_chain+0x4d/0x70
       [<ffffffff810ac1e6>] blocking_notifier_call_chain+0x16/0x20
       [<ffffffff814c748b>] fb_notifier_call_chain+0x1b/0x20
       [<ffffffff814c86b1>] register_framebuffer+0x251/0x330
       [<ffffffff8158fa9f>] drm_fb_helper_initial_config+0x25f/0x3f0
       [<ffffffffa0106b48>] intel_fbdev_initial_config+0x18/0x30 [i915]
       [<ffffffff810adfd8>] async_run_entry_fn+0x48/0x150
       [<ffffffff810a3947>] process_one_work+0x1e7/0x750
       [<ffffffff810a3efb>] worker_thread+0x4b/0x4f0
       [<ffffffff810aad4f>] kthread+0xef/0x110
       [<ffffffff819a85ef>] ret_from_fork+0x1f/0x40

other info that might help us debug this:

 Possible unsafe locking scenario:

       CPU0                    CPU1
       ----                    ----
  lock((fb_notifier_list).rwsem);
                               lock(&dev->mode_config.mutex);
                               lock((fb_notifier_list).rwsem);
  lock(&dev->mode_config.mutex);

 *** DEADLOCK ***

6 locks held by kworker/u8:0/6:
 #0:  ("events_unbound"){.+.+.+}, at: [<ffffffff810a38c9>] process_one_work+0x169/0x750
 #1:  ((&entry->work)){+.+.+.}, at: [<ffffffff810a38c9>] process_one_work+0x169/0x750
 #2:  (registration_lock){+.+.+.}, at: [<ffffffff814c8487>] register_framebuffer+0x27/0x330
 #3:  (console_lock){+.+.+.}, at: [<ffffffff814c86ce>] register_framebuffer+0x26e/0x330
 #4:  (&fb_info->lock){+.+.+.}, at: [<ffffffff814c78dd>] lock_fb_info+0x1d/0x40
 #5:  ((fb_notifier_list).rwsem){++++.+}, at: [<ffffffff810ac195>] __blocking_notifier_call_chain+0x35/0x70

stack backtrace:
CPU: 2 PID: 6 Comm: kworker/u8:0 Tainted: G           O    4.7.0-rc5+ #524
Hardware name: Intel Corp. Broxton P/NOTEBOOK, BIOS APLKRVPA.X64.0138.B33.1606250842 06/25/2016
Workqueue: events_unbound async_run_entry_fn
 0000000000000000 ffff8800758577f0 ffffffff814507a5 ffffffff828b9900
 ffffffff828b9900 ffff880075857830 ffffffff810dc6fa ffff880075857880
 ffff88007584d688 0000000000000005 0000000000000006 ffff88007584d6b0
Call Trace:
 [<ffffffff814507a5>] dump_stack+0x67/0x92
 [<ffffffff810dc6fa>] print_circular_bug+0x1aa/0x200
 [<ffffffff810df0ac>] __lock_acquire+0x10fc/0x1260
 [<ffffffff810df611>] lock_acquire+0xb1/0x200
 [<ffffffff815afde0>] ? drm_modeset_lock_all+0x40/0x120
 [<ffffffff815afde0>] ? drm_modeset_lock_all+0x40/0x120
 [<ffffffff819a3097>] mutex_lock_nested+0x67/0x3c0
 [<ffffffff815afde0>] ? drm_modeset_lock_all+0x40/0x120
 [<ffffffff810fa85f>] ? rcu_read_lock_sched_held+0x7f/0x90
 [<ffffffff81208218>] ? kmem_cache_alloc_trace+0x248/0x2b0
 [<ffffffff815afdc5>] ? drm_modeset_lock_all+0x25/0x120
 [<ffffffff815afde0>] drm_modeset_lock_all+0x40/0x120
 [<ffffffff8158f79b>] drm_fb_helper_restore_fbdev_mode_unlocked+0x2b/0x80
 [<ffffffff8158f81d>] drm_fb_helper_set_par+0x2d/0x50
 [<ffffffffa0105f7a>] intel_fbdev_set_par+0x1a/0x60 [i915]
 [<ffffffff814c13c6>] fbcon_init+0x586/0x610
 [<ffffffff8154d16a>] visual_init+0xca/0x130
 [<ffffffff8154e611>] do_bind_con_driver+0x1c1/0x3a0
 [<ffffffff8154eaf6>] do_take_over_console+0x116/0x180
 [<ffffffff814bd3a7>] do_fbcon_takeover+0x57/0xb0
 [<ffffffff814c1e48>] fbcon_event_notify+0x658/0x750
 [<ffffffff810abcae>] notifier_call_chain+0x3e/0xb0
 [<ffffffff810ac1ad>] __blocking_notifier_call_chain+0x4d/0x70
 [<ffffffff810ac1e6>] blocking_notifier_call_chain+0x16/0x20
 [<ffffffff814c748b>] fb_notifier_call_chain+0x1b/0x20
 [<ffffffff814c86b1>] register_framebuffer+0x251/0x330
 [<ffffffff815b7e8d>] ? vga_switcheroo_client_fb_set+0x5d/0x70
 [<ffffffff8158fa9f>] drm_fb_helper_initial_config+0x25f/0x3f0
 [<ffffffffa0106b48>] intel_fbdev_initial_config+0x18/0x30 [i915]
 [<ffffffff810adfd8>] async_run_entry_fn+0x48/0x150
 [<ffffffff810a3947>] process_one_work+0x1e7/0x750
 [<ffffffff810a38c9>] ? process_one_work+0x169/0x750
 [<ffffffff810a3efb>] worker_thread+0x4b/0x4f0
 [<ffffffff810a3eb0>] ? process_one_work+0x750/0x750
 [<ffffffff810aad4f>] kthread+0xef/0x110
 [<ffffffff819a85ef>] ret_from_fork+0x1f/0x40
 [<ffffffff810aac60>] ? kthread_stop+0x2e0/0x2e0

v2: Rebase onto the right branch (hand-editing patches ftw) and add more
reporters.

Reported-by: Imre Deak <imre.deak@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Reported-by: Jiri Kosina <jikos@kernel.org>
Cc: Jiri Kosina <jikos@kernel.org>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-08-08 16:08:25 +10:00
Daniel Vetter 6942559980 drm: drm_connector->s/connector_id/index/ for consistency
connector_id in the uapi actually means drm_connector->base.id, which
is something entirely different. And ->index is also consistent with
plane/encoder/CRTCS and the various drm_*_index() functions.

While at it also improve/align the kerneldoc comment.

v2: Mention where those ids are from ...

v3: Add -ing to supporting and try to not break the world.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Acked-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1468945501-23166-1-git-send-email-daniel.vetter@ffwll.ch
2016-07-19 21:51:17 +02:00
Chris Wilson 6100598c4a drm: Unexport drm_connector_unregister_all()
This has now been removed from all drivers as it is performed centrally
as a part of device unregistration for modesetting drivers. With the last
user gone, we can unexport it from the DRM module. That requires us to
move the code slightly to avoid the need for a forward declaration.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1468427947-28037-2-git-send-email-chris@chris-wilson.co.uk
2016-07-19 10:04:54 +02:00
Daniel Vetter 0dcac5008f Revert "drm: Resurrect atomic rmfb code"
This reverts commit 11c21e73f8.

For reasons totally unclear this manages to wreak havoc with the audio
rpm refcount:

------------[ cut here ]------------
WARNING: CPU: 0 PID: 215 at drivers/gpu/drm/i915/intel_runtime_pm.c:1729 intel_display_power_put+0xe8/0x100 [i915]
Use count on domain AUDIO is already zero
Modules linked in: i915 ax88179_178a usbnet mii snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec x86_pkg_temp_thermal snd_hwdep intel_powerclamp snd_hda_core co
f_pclmul crc32_pclmul snd_pcm ghash_clmulni_intel mei_me mei e1000e ptp pps_core i2c_hid [last unloaded: i915]
CPU: 0 PID: 215 Comm: kworker/0:2 Not tainted 4.7.0-rc6+ #44
Hardware name: Intel Corporation Skylake Client platform/Skylake Halo DDR4 RVP11, BIOS SKLSE2R1.R00.X106.B00.1601180206 01/18/2016
Workqueue: events output_poll_execute
 0000000000000000 ffff88045573fa38 ffffffff813a2d6b ffff88045573fa88
 0000000000000000 ffff88045573fa78 ffffffff81075db6 000006c15a590000
 ffff88045a59a238 ffff88045a590054 ffff88045a590000 ffff88045a590000
Call Trace:
 [<ffffffff813a2d6b>] dump_stack+0x4d/0x72
 [<ffffffff81075db6>] __warn+0xc6/0xe0
 [<ffffffff81075e1a>] warn_slowpath_fmt+0x4a/0x50
 [<ffffffffa046399d>] ? hsw_audio_codec_disable+0xdd/0x110 [i915]
 [<ffffffffa041e638>] intel_display_power_put+0xe8/0x100 [i915]
 [<ffffffffa049d776>] intel_disable_ddi+0x46/0x80 [i915]
 [<ffffffffa0474eef>] haswell_crtc_disable+0x16f/0x290 [i915]
 [<ffffffffa047cb53>] intel_atomic_commit_tail+0x153/0x10e0 [i915]
 [<ffffffff814aa020>] ? drm_atomic_helper_swap_state+0x140/0x2d0
 [<ffffffffa047dedd>] intel_atomic_commit+0x3fd/0x520 [i915]
 [<ffffffff814d0252>] ? drm_atomic_add_affected_connectors+0x22/0xf0
 [<ffffffff814cf8a2>] drm_atomic_commit+0x32/0x50
 [<ffffffff814aed07>] restore_fbdev_mode+0x147/0x260
 [<ffffffff814b026e>] drm_fb_helper_restore_fbdev_mode_unlocked+0x2e/0x70
 [<ffffffff814b02d8>] drm_fb_helper_set_par+0x28/0x50
 [<ffffffff814b0203>] drm_fb_helper_hotplug_event+0x143/0x180
 [<ffffffffa0498ab5>] intel_fbdev_output_poll_changed+0x15/0x20 [i915]
 [<ffffffff814a1f92>] drm_kms_helper_hotplug_event+0x22/0x30
 [<ffffffff814a2172>] output_poll_execute+0x192/0x1e0
 [<ffffffff8108cf7c>] process_one_work+0x14c/0x480
 [<ffffffff8108d4fa>] worker_thread+0x24a/0x4e0
 [<ffffffff8108d2b0>] ? process_one_work+0x480/0x480
 [<ffffffff8108d2b0>] ? process_one_work+0x480/0x480
 [<ffffffff81092904>] kthread+0xc4/0xe0
 [<ffffffff8173013f>] ret_from_fork+0x1f/0x40
 [<ffffffff81092840>] ? kthread_worker_fn+0x180/0x180
---[ end trace 2d440da5f0c053e4 ]---

Instead of scratching heads too much while CI is down, let's revert
before more trouble is caused.

Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reported-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reported-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Acked-by: Mika Kuoppala <mika.kuoppala@intel.com>
Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1468502194-17029-1-git-send-email-daniel.vetter@ffwll.ch
2016-07-14 15:18:15 +02:00
Daniel Vetter 11c21e73f8 drm: Resurrect atomic rmfb code
This was somehow lost between v3 and the merged version in Maarten's
patch merged as:

commit f2d580b9a8
Author: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Date:   Wed May 4 14:38:26 2016 +0200

    drm/core: Do not preserve framebuffer on rmfb, v4.

Actual code copied from Maarten's patch, but with the slight change to
just use dev->mode_config.funcs->atomic_commit to decide whether to
use the atomic path or not.

Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1465388359-8070-24-git-send-email-daniel.vetter@ffwll.ch
2016-07-13 12:56:20 +02:00
Chris Wilson 041401ffdf drm: Unexport drm_connector_register_all()
This has now been removed from all drivers as it is performed centrally
as a part of device registration for modesetting drivers. With the last
user gone, we can unexport it from the DRM module.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1466778982-6974-1-git-send-email-chris@chris-wilson.co.uk
Link: http://patchwork.freedesktop.org/patch/msgid/1466778982-6974-2-git-send-email-chris@chris-wilson.co.uk
2016-07-12 12:59:27 +02:00
Lukas Wunner 3e31d24d3a drm: Use helper to turn off CRTC
Use shiny new drm_crtc_force_disable() instead of open coding the same.
No functional change intended.

Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/fce52e55fa5a3a2c1436205d26fc1cec70d01eea.1465392124.git.lukas@wunner.de
2016-06-24 08:49:36 +02:00
Lukas Wunner 6a0d952850 drm: Add helpers to turn off CRTCs
Turning off a single CRTC or all active CRTCs of a DRM device is a
fairly common pattern. Add helpers to avoid open coding this everywhere.

The name was chosen to be consistent with drm_plane_force_disable().

Cc: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-06-24 08:49:33 +02:00
Daniel Vetter 3b96a0b140 drm: document drm_auth.c
Also extract drm_auth.h for nicer grouping.

v2: Nuke the other comments since they don't really explain a lot, and
within the drm core we generally only document functions exported to
drivers: The main audience for these docs are driver writers.

v3: Limit the exposure of drm_master internals by only including
drm_auth.h where it is neede (Chris).

v4: Spelling polish (Emil).

Cc: Chris Wilson <chris@chris-wilson.co.uk>
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>
2016-06-21 22:10:55 +02:00
Daniel Vetter b3ac9f2591 drm: Extract drm_is_current_master
Just rolling out a bit of abstraction to be able to clean
up the master logic in the next step.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Thomas Hellstrom <thellstrom@vmware.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@ffwll.ch>
2016-06-21 21:58:12 +02:00
Daniel Vetter 81065548ae drm: Clean up drm_crtc.h
- Group declarations for separate files (drm_bridge.c, drm_edid.c)
- Move declarations only used within drm.ko to drm_crtc_internal.h
- drm_property_type_valid to drm_crtc.c, its only callsite

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/1466499262-18717-2-git-send-email-daniel.vetter@ffwll.ch
2016-06-21 21:43:28 +02:00
Benjamin Gaignard 79190ea265 drm: Add callbacks for late registering
Like what has been done for connectors add callbacks on encoder,
crtc and plane to let driver do actions after drm device registration.

Correspondingly, add callbacks called before unregister drm device.

version 2:
add drm_modeset_register_all() and drm_modeset_unregister_all()
to centralize all calls

version 3:
in error case unwind registers in drm_modeset_register_all
fix uninitialed return value
inverse order of unregistration in drm_modeset_unregister_all

version 4:
move function definitions in drm_crtc_internal.h
remove not needed documentation

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1466519829-4000-1-git-send-email-benjamin.gaignard@linaro.org
2016-06-21 21:32:52 +02:00
Chris Wilson e28cd4d0a2 drm: Automatically register/unregister all connectors
As the drm_connector is now safe for multiple calls to
register/unregister, automatically perform a registration on all known
connectors drm drv_register (and unregister from drm_drv_unregister).
Drivers can still call drm_connector_register() and
drm_connector_unregister() individually, or defer as required.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1466151923-1572-2-git-send-email-chris@chris-wilson.co.uk
2016-06-17 14:42:40 +02:00
Chris Wilson 80de34611a drm: Automatically unregister the connector during cleanup
As we now can call drm_connector_unregister() multiple times, provide a
failsafe unregister for a connector when cleaning it up.

v2: Add a WARN to catch any connectors that are still visible to
userspace when we come to destoy them.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Dave Airlie <airlied@redhat.com>
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1465993109-19523-5-git-send-email-chris@chris-wilson.co.uk
2016-06-17 09:43:39 +02:00
Chris Wilson 40daac6136 drm: Make drm_connector_register() safe against multiple calls
Protect against drivers that may try to register the connector more
than once, or who try to unregister it multiple times.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Dave Airlie <airlied@redhat.com>
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1465993109-19523-4-git-send-email-chris@chris-wilson.co.uk
2016-06-17 09:43:29 +02:00
Chris Wilson aaf285e2e0 drm: Add a callback from connector registering
If a driver wants to more precisely control its initialisation and in
particular, defer registering its interfaces with userspace until after
everything is setup, it also needs to defer registering the connectors.
As some devices need more work during registration, add a callback so
that drivers can do additional work if required for a connector.

Correspondingly, we also require an unregister callback.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Dave Airlie <airlied@redhat.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
[danvet: go ocd and remvoe unecessary empty kerneldoc line.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1465993109-19523-3-git-send-email-chris@chris-wilson.co.uk
2016-06-17 09:40:47 +02:00
Daniel Vetter 3b24f7d675 drm/atomic: Add struct drm_crtc_commit to track async updates
Split out from my big nonblocking atomic commit helper code as prep
work. While add it, also add some neat asciiart to document how it's
supposed to be used.

v2: Resurrect misplaced hunk in the kerneldoc.

v3: Wording improvements from Liviu.

Tested-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Tomeu Vizoso <tomeu.vizoso@gmail.com>
Cc: Daniel Stone <daniels@collabora.com>
Tested-by: Liviu Dudau <Liviu.Dudau@arm.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1465388359-8070-8-git-send-email-daniel.vetter@ffwll.ch
2016-06-10 16:57:54 +02:00
Laurent Pinchart ae4df11a0f drm: Move format-related helpers to drm_fourcc.c
The drm_crtc.c file is a mess, making the ABI documentation confusing
since all functions are in the same bag. Split the format-related
helpers to a new drm_fourcc.c file.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1465466048-2020-1-git-send-email-laurent.pinchart@ideasonboard.com
2016-06-09 11:58:50 +02:00
Dave Airlie 3c85f20a28 omapdrm changes for 4.8
* Update MAINTAINERS file for omapdrm and tilcdc
 * PLL refactoring to allow versatile use of the PLL clocks
 * Public omapdss header refactoring to separate omapfb and omapdrm
 * Gamma table support
 * Support reset GPIO and vcc regulator in omapdrm's panel-dpi
 * Minor cleanups
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Merge tag 'omapdrm-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux into drm-next

omapdrm changes for 4.8

* Update MAINTAINERS file for omapdrm and tilcdc
* PLL refactoring to allow versatile use of the PLL clocks
* Public omapdss header refactoring to separate omapfb and omapdrm
* Gamma table support
* Support reset GPIO and vcc regulator in omapdrm's panel-dpi
* Minor cleanups

* tag 'omapdrm-4.8' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (69 commits)
  drm/omapdrm: Implement gamma_lut atomic crtc properties
  drm/omapdrm: Workaround for errata i734 (LCD1 Gamma) in DSS dispc
  drm/omapdrm: Add gamma table support to DSS dispc
  drm: drm_helper_crtc_enable_color_mgmt() => drm_crtc_enable_color_mgmt()
  drm/omap: rename panel/encoder Kconfig names
  drm: omapdrm: add DSI mapping
  drm: omapdrm: Remove unused omap_framebuffer_bo function
  drm: omapdrm: Remove unused omap_gem_tiled_size function
  drm: omapdrm: panel-lgphilips-lb035q02: Remove unused backlight GPIO
  drm/omap: panel-dpi: implement support for a vcc regulator
  drm/omap: panel-dpi: make (limited) use of a reset gpio
  devicetree/bindings: add reset-gpios and vcc-supply for panel-dpi
  MAINTAINERS: Add maintainer for TI LCDC DRM driver
  MAINTAINERS: Add maintainer for OMAP DRM driver
  drm/omap: fix pitch round-up
  drm/omap: remove align_pitch()
  drm/omap: remove unnecessary pitch round-up
  drm/omap: remove unneeded gpio includes
  drm/omap: Remove the video/omapdss.h and move it's content to local header file
  [media] omap_vout: Switch to use the video/omapfb_dss.h header file
  ...
2016-06-09 12:20:11 +10:00
Dave Airlie 76c6dccf34 Merge branch 'virtio-gpu-for-airlied' of git://git.kraxel.org/linux into drm-next
Virtio-gpu updates

* 'virtio-gpu-for-airlied' of git://git.kraxel.org/linux:
  virtio-gpu: use src not crtc
  virtio-gpu: pick up hotspot from framebuffer
  add cursor hotspot to drm_framebuffer
  virtio-gpu: switch to atomic cursor interfaces
  virtio-gpu: add atomic_commit function
  virtio-gpu: fix output lookup
2016-06-09 12:14:24 +10:00
Dave Airlie 2cca455740 Merge tag 'topic/drm-misc-2016-06-07' of git://anongit.freedesktop.org/drm-intel into drm-next
As promised, piles of prep work all around:
- drm_atomic_state rework, prep for nonblocking commit helpers
- fence patches from Gustavo and Christian to prep for atomic fences and
  some cool work in ttm/amdgpu from Christian
- drm event prep for both nonblocking commit and atomic fences
- Gustavo seems on a crusade against the non-kms-native version of the
  vblank functions.
- prep work from Boris to nuke all the silly ->best_encoder
  implementations we have (we really only need that for truly dynamic
  cases like dvi-i vs dvi-d or dp mst selecting the right transcoder on
  intel)
- prep work from Laurent to rework the format handling functions
- and few small things all over

* tag 'topic/drm-misc-2016-06-07' of git://anongit.freedesktop.org/drm-intel: (47 commits)
  drm/dsi: Implement set tear scanline
  drm/fb_cma_helper: Implement fb_mmap callback
  drm/qxl: Remove useless drm_fb_get_bpp_depth() call
  drm/ast: Remove useless drm_fb_get_bpp_depth() call
  drm/atomic: Fix remaining places where !funcs->best_encoder is valid
  drm/core: Change declaration for gamma_set.
  Documentation: add fence-array to kernel DocBook
  drm/shmobile: use drm_crtc_vblank_{get,put}()
  drm/radeon: use drm_crtc_vblank_{get,put}()
  drm/qxl: use drm_crtc_vblank_{get,put}()
  drm/atmel: use drm_crtc_vblank_{get,put}()
  drm/armada: use drm_crtc_vblank_{get,put}()
  drm/amdgpu: use drm_crtc_vblank_{get,put}()
  drm/virtio: use drm_crtc_send_vblank_event()
  drm/udl: use drm_crtc_send_vblank_event()
  drm/qxl: use drm_crtc_send_vblank_event()
  drm/atmel: use drm_crtc_send_vblank_event()
  drm/armada: use drm_crtc_send_vblank_event()
  drm/doc: Switch to sphinx/rst fixed-width quoting
  drm/doc: Drop kerneldoc for static functions in drm_irq.c
  ...
2016-06-09 11:19:28 +10:00
Dave Airlie fa625c1956 Linux 4.7-rc2
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Backmerge tag 'v4.7-rc2' into drm-next

Daniel has a pull request that relies on stuff in fixes that are in rc2.
2016-06-09 11:01:49 +10:00
Jyri Sarha f8ed34ac7b drm: drm_helper_crtc_enable_color_mgmt() => drm_crtc_enable_color_mgmt()
Add drm_crtc_enable_color_mgmt(), remove drm_helper_crtc_enable_color_mgmt()
and update drm/i915-driver (the only user of the old function).

The new function is more flexible. It allows driver to enable only the
features it has without forcing to enable all three color management
properties: degamma lut, csc matrix (ctm), and gamma lut.

Suggested-by: Daniel Vetter <daniel@ffwll.ch>
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
2016-06-07 17:10:49 +03:00
Maarten Lankhorst 7ea7728387 drm/core: Change declaration for gamma_set.
Change return value to int to propagate errors from gamma_set,
and remove start parameter. Updates always use the full size,
and some drivers even ignore the start parameter altogether.

This is needed for atomic drivers, where an atomic commit can
fail with -EINTR or -ENOMEM and should be restarted. This is already
and issue for drm_atomic_helper_legacy_set_gamma, which this patch
fixes up.

Changes since v1:
- Fix compiler warning. (Emil)
- Fix commit message (Daniel)

Cc: Alex Deucher <alexander.deucher@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Eric Anholt <eric@anholt.net>
Cc: VMware Graphics <linux-graphics-maintainer@vmware.com>
Cc: Mathieu Larouche <mathieu.larouche@matrox.com>
Cc: Thierry Reding <treding@nvidia.com>
Acked-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
[danvet: Improve commit message a bit more, mention that this fixes
the helper.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/742944bc-9f41-1acb-df4f-0fd4c8a10168@linux.intel.com
2016-06-07 15:30:09 +02:00
Gerd Hoffmann dd54659107 add cursor hotspot to drm_framebuffer
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-06-07 10:37:06 +02:00
Chris Wilson 490d3d1b91 drm: Store the plane's index
Currently the plane's index is determined by walking the list of all
planes in the mode and finding the position of that plane in the list. A
linear walk, especially a linear walk within a linear walk as frequently
conceived by i915.ko [O(N^2)] quickly comes to dominate profiles.

The plane's index is constant for as long as no earlier planes are
removed from the list. For all drivers, planes are static, determined
at boot and then untouched until shutdown. In fact, there is no locking
provided to allow for dynamic removal of planes/encoders/crtcs.

v2: Convert drm_crtc_index() and drm_encoder_index() as well.
v3: Stop adjusting the indices upon removal; consider the list
construct-only.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Matt Roper <matthew.d.roper@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
[danvet: Fixup typo in kerneldoc that Matt spotted.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1464375900-2542-1-git-send-email-chris@chris-wilson.co.uk
2016-06-03 00:02:23 +02:00
Daniel Vetter 2e7a5701c9 drm/doc: Appease sphinx
Mostly this is unexpected indents. But really it's just a
demonstration for my patch, all these issues have been found&fixed
using the correct source file and line number support I just added.
All line numbers have been perfectly accurate.

One issue looked a bit fishy in intel_lrc.c, where I don't quite grok
what sphinx is unhappy about. But since that file looks like it has
never seen a proper kernel-doc parser I figured better to fix in a
separate path.

v2: Use fancy new &drm_device->struct_mutex linking (Jani).

Cc: Jani Nikula <jani.nikula@intel.com>
Cc: linux-doc@vger.kernel.org
Cc: Jonathan Corbet <corbet@lwn.net>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2016-06-02 16:25:20 +02:00
Tomi Valkeinen 1e8985a835 drm: fix fb refcount issue with atomic modesetting
After commit 027b3f8ba9 ("drm/modes: stop
handling framebuffer special") extra fb refs are left around when doing
atomic modesetting.

The problem is that the new drm_property_change_valid_get() does not
return anything in the '**ref' parameter, which causes
drm_property_change_valid_put() to do nothing.

For some reason this doesn't cause problems with legacy API.

Also, previously the code only set the 'ref' variable for fbs, with this
patch the 'ref' is set for all objects.

Fixes: 027b3f8ba9 ("drm/modes: stop handling framebuffer special")
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-06-01 15:00:05 +10:00
Tomi Valkeinen b201e743f4 drm: add missing drm_mode_set_crtcinfo call
When setting mode via MODE_ID property,
drm_atomic_set_mode_prop_for_crtc() does not call
drm_mode_set_crtcinfo() which possibly causes:

"[drm:drm_calc_timestamping_constants [drm]] *ERROR* crtc 32: Can't
calculate constants, dotclock = 0!"

Whether the error is seen depends on the previous data in state->mode,
as state->mode is not cleared when setting new mode.

This patch adds drm_mode_set_crtcinfo() call to
drm_mode_convert_umode(), which is called in both legacy and atomic
paths. This should be fine as there's no reason to call
drm_mode_convert_umode() without also setting the crtc related fields.

drm_mode_set_crtcinfo() is removed from the legacy drm_mode_setcrtc() as
that is no longer needed.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-06-01 14:59:39 +10:00
Daniel Vetter cf48e2921e drm: Initialize a linear gamma table by default
Code stolen from gma500.

This is just a minor bit of safety code that I spotted and figured it
might be useful if we put it into the core. This is to make the
get_gamma ioctl reflect likely reality even before the first set_gamma
ioctl call.

v2 on irc: Extend commit message per Maarten's suggestions.

Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1459331485-28376-2-git-send-email-daniel.vetter@ffwll.ch
2016-05-31 16:56:44 +02:00
Daniel Vetter fdf2c85f26 drm: Fix error handling in drm_connector_register
When debugfs or sysfs registration failed, we failed to clean up the
idr registration. Reorder to fix this.

Cc: Dave Airlie <airlied@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1462539302-27764-1-git-send-email-daniel.vetter@ffwll.ch
2016-05-18 12:24:51 +02:00
Maarten Lankhorst f2d580b9a8 drm/core: Do not preserve framebuffer on rmfb, v4.
It turns out that preserving framebuffers after the rmfb call breaks
vmwgfx userspace. This was originally introduced because it was thought
nobody relied on the behavior, but unfortunately it seems there are
exceptions.

drm_framebuffer_remove may fail with -EINTR now, so a straight revert
is impossible. There is no way to remove the framebuffer from the lists
and active planes without introducing a race because of the different
locking requirements. Instead call drm_framebuffer_remove from a
workqueue, which is unaffected by signals.

Changes since v1:
- Add comment.
Changes since v2:
- Add fastpath for refcount = 1. (danvet)
Changes since v3:
- Rebased.
- Restore lastclose framebuffer removal too.

Cc: stable@vger.kernel.org #v4.4+
Fixes: 1380313281 ("drm/core: Preserve the framebuffer after removing it.")
Testcase: kms_rmfb_basic
References: https://lists.freedesktop.org/archives/dri-devel/2016-March/102876.html
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Cc: David Herrmann <dh.herrmann@gmail.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Tested-by: Thomas Hellstrom <thellstrom@vmware.com> #v3
Tested-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/6c63ca37-0e7e-ac7f-a6d2-c7822e3d611f@linux.intel.com
2016-05-05 13:50:53 +02:00
Dave Airlie b164d31f50 drm/modes: add connector reference counting. (v2)
This uses the previous changes to add reference counts
to drm connector objects.

v2: move fbdev changes to their own patch.
add some kerneldoc

Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Daniel Stone <daniels@collabora.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-05-05 12:51:53 +10:00
Dave Airlie acff058f86 This pull request brings in DPI panel support, gamma ramp support, and
render nodes for vc4.
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Merge tag 'drm-vc4-next-2016-05-02' of https://github.com/anholt/linux into drm-next

This pull request brings in DPI panel support, gamma ramp support, and
render nodes for vc4.

* tag 'drm-vc4-next-2016-05-02' of https://github.com/anholt/linux:
  drm/vc4: Add missing render node support
  drm/vc4: Add support for gamma ramps.
  drm/vc4: Fix NULL deref in HDMI init error path
  drm/vc4: Add DPI driver
  drm: Add an encoder and connector type enum for DPI.
2016-05-04 17:30:53 +10:00
Dave Airlie 2b8f01f178 Merge tag 'topic/drm-misc-2016-04-29' of git://anongit.freedesktop.org/drm-intel into drm-next
- prep work for struct_mutex-less gem_free_object
- more invasive/tricky mst fixes from Lyude for broken hw. I discussed
  this with Ville/Jani and we all agreed more soaking in -next would be
  real good this late in the -rc cycle. They're cc: stable too to make
  sure they're not getting lost. Feel free to cherry-pick those four if
  you disagree.
- few small things all over

* tag 'topic/drm-misc-2016-04-29' of git://anongit.freedesktop.org/drm-intel:
  drm/atomic: Add missing drm_crtc_internal.h include
  drm/dp: Allow signals to interrupt drm_aux-dev reads/writes
  drm: Quiet down drm_mode_getresources
  drm: Quiet down drm_mode_getconnector
  drm: Protect dev->filelist with its own mutex
  drm: Make drm_vm_open/close_locked private to drm_vm.c
  drm: Hide master MAP cleanup in drm_bufs.c
  drm: Forbid legacy MAP functions for DRIVER_MODESET
  drm: Push struct_mutex into ->master_destroy
  drm: Move drm_getmap into drm_bufs.c and give it a legacy prefix
  drm: Put legacy lastclose work into drm_legacy_dev_reinit
  drm: Give drm_agp_clear drm_legacy_ prefix
  drm/sysfs: Annote lockless show functions with READ_ONCE
  MAINTAINERS: Update the files list for the GMA500 DRM driver
  drm: rcar-du: Fix compilation warning
  drm/i915: Get rid of intel_dp_dpcd_read_wake()
  drm/dp_helper: Perform throw-away read before actual read in drm_dp_dpcd_read()
  drm/dp_helper: Retry aux transactions on all errors
  drm/dp_helper: Always wait before retrying native aux transactions
2016-05-04 17:28:09 +10:00
Tvrtko Ursulin 676fb3240d drm: Quiet down drm_mode_getresources
The debug logging here can be very verbose in the kernel logs
and provides no information which userspace doesn't have the
access to already. Turn it off so kernel logs become more
manageable.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1461755507-30453-1-git-send-email-tvrtko.ursulin@linux.intel.com
2016-04-28 10:55:38 +02:00
Tvrtko Ursulin 3849bef34d drm: Quiet down drm_mode_getconnector
Debug logging in this function does not provide any information
apart that the userspace is calling an ioctl on the connector.

There is not any info on the connector provided at all and
since there are other ioctls userspace typically calls which
do log useful things about the same connectors, remove this
one to make things a little bit more readable when KMS debugging
is turned on.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1461751622-26927-10-git-send-email-tvrtko.ursulin@linux.intel.com
2016-04-28 10:54:17 +02:00