Commit Graph

191 Commits

Author SHA1 Message Date
Ben Skeggs
b26a2319be drm/nouveau: fix race when adding delayed work items
kernel.org bz#198221.

Reported-by: Petr Vandrovec <petr@vandrovec.name>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-12-23 08:56:59 +10:00
Ben Skeggs
632b740c54 drm/nouveau/mmu: remove old vmm frontend
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-11-02 13:32:33 +10:00
Ben Skeggs
814a23243b drm/nouveau: implement per-client delayed workqueue with fence support
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-11-02 13:32:33 +10:00
Ben Skeggs
7f50762423 drm/nouveau: determine memory class for each client
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-11-02 13:32:33 +10:00
Ben Skeggs
96da0bcd51 drm/nouveau: allocate vmm object for every client
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-11-02 13:32:32 +10:00
Ben Skeggs
01670a79d5 drm/nouveau: allocate mmu object for every client
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-11-02 13:32:32 +10:00
Ben Skeggs
24e8375b1b drm/nouveau: separate constant-va tracking from nvkm vma structure
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-11-02 13:32:21 +10:00
Ben Skeggs
cb7e88e70f drm/nouveau: hang drm client of a master
TTM memory allocations will be hanging off the DRM's client, but the
locking needed to do so gets really tricky with all the other use of
the DRM's object tree.

To solve this, we make the normal DRM client a child of a new master,
where the memory allocations will be done from instead.

This also solves a potential race with client creation.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-11-02 13:32:21 +10:00
Ben Skeggs
e75c091baf drm/nouveau: store nouveau_drm in nouveau_cli, as opposed to drm_device
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-11-02 13:32:20 +10:00
Ben Skeggs
2d38a5359f drm/nouveau: silence suspend/resume debugging messages
These are particularly annoying on Optimus systems where these paths can
be called regularly.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-08-22 18:04:36 +10:00
Noralf Trønnes
1e1d5bf4dc drm/nouveau: Use the drm_driver.dumb_destroy default
drm_gem_dumb_destroy() is the drm_driver.dumb_destroy default,
so no need to set it.

Cc: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/1500837417-40580-33-git-send-email-noralf@tronnes.org
2017-07-29 14:02:31 +02:00
Sean Paul
b740e76936 Merge remote-tracking branch 'airlied/drm-next' into drm-misc-next
Required for Daniel's drm_vblank_cleanup cleanup
2017-06-27 09:18:17 -04:00
Daniel Vetter
10631d724d drm/pci: Deprecate drm_pci_init/exit completely
The magic switching between proper pci driver and shadow-attach isn't
useful anymore since there's no ums+kms drivers left. Let's split this
up properly, calling pci_register_driver for kms drivers and renaming
the shadow-attach init to drm_legacy_pci_init/exit.

Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170524145212.27837-6-daniel.vetter@ffwll.ch
2017-06-20 10:41:03 +02:00
Daniel Vetter
5c484cee7e drm: Remove drm_driver->set_busid hook
The only special-case is pci devices, and we can easily handle this in
the core. Do so and drop a pile of boilerplate from drivers.

Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170524145212.27837-5-daniel.vetter@ffwll.ch
2017-06-20 10:40:49 +02:00
Arnd Bergmann
5499473c86 drm/nouveau: use proper prototype in nouveau_pmops_runtime() definition
There is a prototype for this function in the header, but the function
itself lacks a 'void' in the argument list, causing a harmless warning
when building with 'make W=1':

drivers/gpu/drm/nouveau/nouveau_drm.c: In function 'nouveau_pmops_runtime':
drivers/gpu/drm/nouveau/nouveau_drm.c:730:1: error: old-style function definition [-Werror=old-style-definition]

Fixes: 321f5c5f2c ("drm/nouveau: replace multiple open-coded runpm support checks with function")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-06-16 14:05:04 +10:00
Dave Airlie
925344ccc9 Linux 4.12-rc5
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BackMerge tag 'v4.12-rc5' into drm-next

Linux 4.12-rc5 for nouveau fixes
2017-06-16 13:58:27 +10:00
Ben Skeggs
8fa4338acc drm/nouveau: enable autosuspend only when it'll actually be used
This prevents a deadlock that somehow results from the suspend() ->
forbid() -> resume() callchain.

[  125.266960] [drm] Initialized nouveau 1.3.1 20120801 for 0000:02:00.0 on minor 1
[  370.120872] INFO: task kworker/4:1:77 blocked for more than 120 seconds.
[  370.120920]       Tainted: G           O    4.12.0-rc3 #20
[  370.120947] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
[  370.120982] kworker/4:1     D13808    77      2 0x00000000
[  370.120998] Workqueue: pm pm_runtime_work
[  370.121004] Call Trace:
[  370.121018]  __schedule+0x2bf/0xb40
[  370.121025]  ? mark_held_locks+0x5f/0x90
[  370.121038]  schedule+0x3d/0x90
[  370.121044]  rpm_resume+0x107/0x870
[  370.121052]  ? finish_wait+0x90/0x90
[  370.121065]  ? pci_pm_runtime_resume+0xa0/0xa0
[  370.121070]  pm_runtime_forbid+0x4c/0x60
[  370.121129]  nouveau_pmops_runtime_suspend+0xaf/0xc0 [nouveau]
[  370.121139]  pci_pm_runtime_suspend+0x5f/0x170
[  370.121147]  ? pci_pm_runtime_resume+0xa0/0xa0
[  370.121152]  __rpm_callback+0xb9/0x1e0
[  370.121159]  ? pci_pm_runtime_resume+0xa0/0xa0
[  370.121166]  rpm_callback+0x24/0x80
[  370.121171]  ? pci_pm_runtime_resume+0xa0/0xa0
[  370.121176]  rpm_suspend+0x138/0x6e0
[  370.121192]  pm_runtime_work+0x7b/0xc0
[  370.121199]  process_one_work+0x253/0x6a0
[  370.121216]  worker_thread+0x4d/0x3b0
[  370.121229]  kthread+0x133/0x150
[  370.121234]  ? process_one_work+0x6a0/0x6a0
[  370.121238]  ? kthread_create_on_node+0x70/0x70
[  370.121246]  ret_from_fork+0x2a/0x40
[  370.121283]
               Showing all locks held in the system:
[  370.121291] 2 locks held by kworker/4:1/77:
[  370.121298]  #0:  ("pm"){.+.+.+}, at: [<ffffffffac0d3530>] process_one_work+0x1d0/0x6a0
[  370.121315]  #1:  ((&dev->power.work)){+.+.+.}, at: [<ffffffffac0d3530>] process_one_work+0x1d0/0x6a0
[  370.121330] 1 lock held by khungtaskd/81:
[  370.121333]  #0:  (tasklist_lock){.+.+..}, at: [<ffffffffac10fc8d>] debug_show_all_locks+0x3d/0x1a0
[  370.121355] 1 lock held by dmesg/1639:
[  370.121358]  #0:  (&user->lock){+.+.+.}, at: [<ffffffffac124b6d>] devkmsg_read+0x4d/0x360

[  370.121377] =============================================

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-06-06 14:04:03 +10:00
Ben Skeggs
321f5c5f2c drm/nouveau: replace multiple open-coded runpm support checks with function
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-06-06 14:04:03 +10:00
Dave Airlie
2a1720376a Linux 4.12-rc3
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Backmerge tag 'v4.12-rc3' into drm-next

Linux 4.12-rc3

Daniel has requested this for some drm-intel-next work.
2017-05-30 15:54:15 +10:00
Masahiro Yamada
ae95621b45 drm/nouveau: fix include notation and remove -Iinclude/drm flag
Include <drm/*.h> instead of relative path from include/drm, then
remove the -Iinclude/drm compiler flag.

Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1493009447-31524-12-git-send-email-yamada.masahiro@socionext.com
2017-05-17 14:36:01 +02:00
Peter Ujfalusi
9a2eba337c drm/nouveau: Fix drm poll_helper handling
Commit cae9ff036e effectively disabled the drm poll_helper by checking
the wrong flag to see if the driver should enable the poll or not:
mode_config.poll_enabled is only set to true by poll_init and it is not
indicating if the poll is enabled or not.
nouveau_display_create() will initialize the poll and going to disable it
right away. After poll_init() the mode_config.poll_enabled will be true,
but the poll itself is disabled.

To avoid the race caused by calling the poll_enable() from different paths,
this patch will enable the poll from one place, in the
nouveau_display_hpd_work().

In case the pm_runtime is disabled we will enable the poll in
nouveau_drm_load() once.

Fixes: cae9ff036e ("drm/nouveau: Don't enabling polling twice on runtime resume")
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Reviewed-by: Lyude <lyude@redhat.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-05-17 09:09:41 +10:00
Daniel Vetter
1bf6ad622b drm/vblank: drop the mode argument from drm_calc_vbltimestamp_from_scanoutpos
If we restrict this helper to only kms drivers (which is the case) we
can look up the correct mode easily ourselves. But it's a bit tricky:

- All legacy drivers look at crtc->hwmode. But that is updated already
  at the beginning of the modeset helper, which means when we disable
  a pipe. Hence the final timestamps might be a bit off. But since
  this is an existing bug I'm not going to change it, but just try to
  be bug-for-bug compatible with the current code. This only applies
  to radeon&amdgpu.

- i915 tries to get it perfect by updating crtc->hwmode when the pipe
  is off (i.e. vblank->enabled = false).

- All other atomic drivers look at crtc->state->adjusted_mode. Those
  that look at state->requested_mode simply don't adjust their mode,
  so it's the same. That has two problems: Accessing crtc->state from
  interrupt handling code is unsafe, and it's updated before we shut
  down the pipe. For nonblocking modesets it's even worse.

For atomic drivers try to implement what i915 does. To do that we add
a new hwmode field to the vblank structure, and update it from
drm_calc_timestamping_constants(). For atomic drivers that's called
from the right spot by the helper library already, so all fine. But
for safety let's enforce that.

For legacy driver this function is only called at the end (oh the
fun), which is broken, so again let's not bother and just stay
bug-for-bug compatible.

The  benefit is that we can use drm_calc_vbltimestamp_from_scanoutpos
directly to implement ->get_vblank_timestamp in every driver, deleting
a lot of code.

v2: Completely new approach, trying to mimick the i915 solution.

v3: Fixup kerneldoc.

v4: Drop the WARN_ON to check that the vblank is off, atomic helpers
currently unconditionally call this. Recomputing the same stuff should
be harmless.

v5: Fix typos and move misplaced hunks to the right patches (Neil).

v6: Undo hunk movement (kbuild).

Cc: Mario Kleiner <mario.kleiner@tuebingen.mpg.de>
Cc: Eric Anholt <eric@anholt.net>
Cc: Rob Clark <robdclark@gmail.com>
Cc: linux-arm-msm@vger.kernel.org
Cc: freedreno@lists.freedesktop.org
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Reviewed-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170509140329.24114-4-daniel.vetter@ffwll.ch
2017-05-10 10:21:31 +02:00
Daniel Vetter
f0e73ff3d5 drm/nouveau: Merge pre/postclose hooks
Again no apparent explanation for the split except hysterical raisins.
Merging them also makes it a bit more obviuos what's going on wrt the
runtime pm refdancing.

Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: nouveau@lists.freedesktop.org
Reviewed-by: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Liviu Dudau <Liviu.Dudau@arm.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170508082633.4214-1-daniel.vetter@ffwll.ch
2017-05-09 13:19:19 +02:00
Daniel Vetter
a45216547e Merge branch 'drm/next/platform' of git://linuxtv.org/pinchartl/media into drm-misc-next
Merge Laurent's drm_platform removal code. Only conflict is with the
drm_pci.h extraction, which allows me to fix up the misplayed
drm_platform_init fumble that 0day and Stephen Rothwell reported.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2017-03-11 11:46:03 +01:00
Noralf Trønnes
1a54082a95 drm/nouveau: Remove nouveau_drm_debugfs_cleanup()
drm_debugfs_cleanup() now removes all minor->debugfs_list entries
automatically, so the drm_driver.debugfs_cleanup callback is not
needed. Additionally it uses debugfs_remove_recursive() to clean
up the debugfs files, so no need for adding fake drm_info_node
entries.

Cc: bskeggs@redhat.com
Signed-off-by: Noralf Trønnes <noralf@tronnes.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170126225621.12314-11-noralf@tronnes.org
2017-03-01 16:09:52 +01:00
Daniel Vetter
8e22e1b349 Merge airlied/drm-next into drm-misc-next
Backmerge the main pull request to sync up with all the newly landed
drivers. Otherwise we'll have chaos even before 4.12 started in
earnest.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2017-02-26 21:34:42 +01:00
Dave Airlie
94000cc329 Linux 4.10-rc8
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Merge tag 'v4.10-rc8' into drm-next

Linux 4.10-rc8

Backmerge Linus rc8 to fix some conflicts, but also
to avoid pulling it in via a fixes pull from someone.
2017-02-23 12:10:12 +10:00
Laurent Pinchart
76adb460fd drm: Remove the struct drm_device platformdev field
The field contains a pointer to the parent platform device of the DRM
device. As struct drm_device also contains a dev pointer to the struct
device embedded in the platform_device structure, the platformdev field
is redundant. Remove it and use the dev pointer directly.

Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Jyri Sarha <jsarha@ti.com>
Acked-by: Vincent Abriou <vincent.abriou@st.com> # For sti
Acked-by: Russell King <rmk+kernel@armlinux.org.uk> # For armada
Acked-by: Rob Clark <robdclark@gmail.com> # For msm
Acked-by: Xinwei Kong<kong.kongxinwei@hisilicon.com>
2017-02-17 15:27:24 +02:00
Ben Skeggs
1167c6bc51 drm/nouveau: allocate device object for every client
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-02-17 15:15:04 +10:00
Ben Skeggs
80e60973b2 drm/nouveau: create userspace clients as subclients
This will allow the DRM to share memory objects between clients later
down the track.

For the moment, the only immediate benefit is less logic required to
handle suspend/resume.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-02-17 15:15:03 +10:00
Ben Skeggs
20d8a88e55 drm/nouveau: tidy up the client init/fini interfaces
These were a little insane.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-02-17 15:15:03 +10:00
Ben Skeggs
04b8867758 drm/nouveau/core/client: allow creation of subclients
We want a supervisor client of NVKM (such as the DRM) to be able to
allow sharing of resources (such as memory objects) between clients.

To allow this, the supervisor creates all its clients as children of
itself, and will use an upcoming ioctl to permit sharing.

Currently it's not possible for indirect clients to use subclients.
Supporting this will require an additional field in the main ioctl.
This isn't important currently, but will need to be fixed for virt.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-02-17 15:15:00 +10:00
Shawn Guo
967dd48417 drm: remove drm_vblank_no_hw_counter assignment from driver code
Core code already makes drm_driver.get_vblank_counter hook optional by
letting drm_vblank_no_hw_counter be the default implementation for the
function hook.  So the drm_vblank_no_hw_counter assignment in the driver
code becomes redundant and can be removed now.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Cc: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Liviu Dudau <liviu.dudau@arm.com>
Cc: Mali DP Maintainers <malidp@foss.arm.com>
Cc: Russell King <linux@armlinux.org.uk>
Cc: Boris Brezillon <boris.brezillon@free-electrons.com>
Cc: Inki Dae <inki.dae@samsung.com>
Cc: Stefan Agner <stefan@agner.ch>
Cc: Xinliang Liu <z.liuxinliang@hisilicon.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Philipp Zabel <p.zabel@pengutronix.de>
Cc: CK Hu <ck.hu@mediatek.com>
Cc: Neil Armstrong <narmstrong@baylibre.com>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Marek Vasut <marex@denx.de>
Cc: Ben Skeggs <bskeggs@redhat.com>
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Mark Yao <mark.yao@rock-chips.com>
Cc: Benjamin Gaignard <benjamin.gaignard@linaro.org>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Jyri Sarha <jsarha@ti.com>
Cc: Eric Anholt <eric@anholt.net>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Acked-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Russell King <rmk+kernel@armlinux.org.uk>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Alexey Brodkin <abrodkin@synopsys.com>
Acked-by: Liviu Dudau <liviu.dudau@arm.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1486458995-31018-3-git-send-email-shawnguo@kernel.org
2017-02-07 21:43:55 +01:00
Lyude Paul
cae9ff036e drm/nouveau: Don't enabling polling twice on runtime resume
As it turns out, on cards that actually have CRTCs on them we're already
calling drm_kms_helper_poll_enable(drm_dev) from
nouveau_display_resume() before we call it in
nouveau_pmops_runtime_resume(). This leads us to accidentally trying to
enable polling twice, which results in a potential deadlock between the
RPM locks and drm_dev->mode_config.mutex if we end up trying to enable
polling the second time while output_poll_execute is running and holding
the mode_config lock. As such, make sure we only enable polling in
nouveau_pmops_runtime_resume() if we need to.

This fixes hangs observed on the ThinkPad W541

Signed-off-by: Lyude <lyude@redhat.com>
Cc: Hans de Goede <hdegoede@redhat.com>
Cc: Kilian Singer <kilian.singer@quantumtechnology.info>
Cc: Lukas Wunner <lukas@wunner.de>
Cc: David Airlie <airlied@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2017-01-27 10:43:42 +10:00
Gabriel Krisman Bertazi
11b3c20bdd drm: Change the return type of the unload hook to void
The integer returned by the unload hook is ignored by the drm core, so
let's make it void.

This patch was created using the following Coccinelle semantic script
(except for the declaration and comment in drm_drv.h):

Compile-tested only.

// <smpl>
@ get_name @
struct drm_driver drv;
identifier fn;
@@
drv.unload = fn;

@ replace_type @
identifier get_name.fn;
@@
- int
+ void
fn (...)
{
...
}

@ remove_return_param @
identifier get_name.fn;
@@
void fn (...)
{
<...
if (...)
return
- ...
;
...>
 }

@ drop_final_return @
identifier get_name.fn;
@@
void fn (...)
{
...

- return 0;
}
// </smpl>

Suggested-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Acked-by: Christian König <christian.koenig@amd.com>.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170106175731.29196-1-krisman@collabora.co.uk
2017-01-09 11:25:22 +01:00
Pierre Moreau
db1a0ae214 drm/nouveau/bl: Assign different names to interfaces
Currently, every backlight interface created by Nouveau uses the same name,
nv_backlight. This leads to a sysfs warning as it tries to create an already
existing folder. This patch adds a incremented number to the name, but keeps
the initial name as nv_backlight, to avoid possibly breaking userspace; the
second interface will be named nv_backlight1, and so on.

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

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

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

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

Signed-off-by: Pierre Moreau <pierre.morrow@free.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-12-13 11:40:16 +10:00
Hans de Goede
0b2fe6594f drm/nouveau: Queue hpd_work on (runtime) resume
We need to call drm_helper_hpd_irq_event() on resume to properly detect
monitor connection / disconnection on some laptops, use hpd_work for
this to avoid deadlocks.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-11-28 15:39:35 +10:00
Ben Skeggs
3b4c0abb1b drm/nouveau/kms: move drm_crtc_force_disable_all() earlier
nouveau_display_fini() is responsible for quiescing the hardware, so
this is where such actions belong.

More than that, nouveau_display_fini() switches off the receiving of
sink irqs, which MST will require while shutting down an active head.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-11-07 14:04:45 +10:00
Ben Skeggs
f3a8b6645d drm/nouveau: silence sparse warnings about symbols not being marked static
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-11-07 14:04:40 +10:00
Martin Peres
8d021d71b3 drm/nouveau/drm/nouveau: add a LED driver for the NVIDIA logo
We received a donation of a Titan which has this useless feature
allowing users to control the brightness of the LED behind the
logo of NVIDIA. In the true spirit of open source, let's expose
that to the users of very expensive cards!

This patch hooks up this LED/PWM to the LED subsystem which allows
blinking it in sync with cpu/disk/network/whatever activity (heartbeat
is quite nice!). Users may also implement some breathing effect or
morse code support in the userspace if they feel like it.

v2:
 - surround the use of the LED framework with ifdef CONFIG_LEDS_CLASS

v3:
 - avoid using ifdefs everywhere, follow the recommendations of
   /doc/Documentation/CodingStyle. Suggested by Emil Velikov.

v4 (Ben):
 - squashed series of fixes from ml

Signed-off-by: Martin Peres <martin.peres@free.fr>
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-10-12 17:29:29 +10:00
Tom Gundersen
0f2886057b drm: Don't swallow error codes in drm_dev_alloc()
There are many reasons other than ENOMEM that drm_dev_init() can
fail. Return ERR_PTR rather than NULL to be able to distinguish
these in the caller.

Signed-off-by: Tom Gundersen <teg@jklm.no>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Link: http://patchwork.freedesktop.org/patch/msgid/20160921145919.13754-2-teg@jklm.no
2016-09-22 04:03:48 -07:00
Daniel Vetter
44adece57e drm/fb-helper: Add a dummy remove_conflicting_framebuffers
Lots of drivers don't properly compile without this when CONFIG_FB=n.
It's kinda a hack, but since CONFIG_FB doesn't stub any fucntions when
it's disabled I think it makes sense to add it to drm_fb_helper.h.

Long term we probably need to rethink all the logic to unload firmware
framebuffer drivers, at least if we want to be able to move away from
CONFIG_FB and fbcon.

v2: Unfortunately just stubbing out remove_conflicting_framebuffers in
drm_fb_helper.h upset gcc about static vs. non-static declarations, so
a new wrapper it needs to be. Means more churn :(

Cc: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Cc: Noralf Trønnes <noralf@tronnes.org>
Cc: tomi.valkeinen@ti.com
Cc: dh.herrmann@gmail.com
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1470847958-28465-2-git-send-email-daniel.vetter@ffwll.ch
2016-08-12 10:41:18 +02:00
Dave Airlie
6c181c8210 Merge tag 'topic/drm-misc-2016-07-14' of git://anongit.freedesktop.org/drm-intel into drm-next
I recovered dri-devel backlog from my vacation, more misc stuff:
- of_put_node fixes from Peter Chen (not all yet)
- more patches from Gustavo to use kms-native drm_crtc_vblank_* funcs
- docs sphinxification from Lukas Wunner
- bunch of fixes all over from Dan Carpenter
- more follow up work from Chris register/unregister rework in various
  places
- vgem dma-buf export (for writing testcases)
- small things all over from tons of different people

* tag 'topic/drm-misc-2016-07-14' of git://anongit.freedesktop.org/drm-intel: (52 commits)
  drm: Don't overwrite user ioctl arg unless requested
  dma-buf/sync_file: improve Kconfig description for Sync Files
  MAINTAINERS: add entry for the Sync File Framework
  drm: Resurrect atomic rmfb code
  drm/vgem: Use PAGE_KERNEL in place of x86-specific PAGE_KERNEL_IO
  qxl: silence uninitialized variable warning
  qxl: check for kmap failures
  vga_switcheroo: Sphinxify docs
  drm: Restore double clflush on the last partial cacheline
  gpu: drm: rockchip_drm_drv: add missing of_node_put after calling of_parse_phandle
  gpu: drm: sti_vtg: add missing of_node_put after calling of_parse_phandle
  gpu: drm: sti_hqvdp: add missing of_node_put after calling of_parse_phandle
  gpu: drm: sti_vdo: add missing of_node_put after calling of_parse_phandle
  gpu: drm: sti_compositor: add missing of_node_put after calling of_parse_phandle
  drm/tilcdc: use drm_crtc_handle_vblank()
  drm/rcar-du: use drm_crtc_handle_vblank()
  drm/nouveau: use drm_crtc_handle_vblank()
  drm/atmel: use drm_crtc_handle_vblank()
  drm/armada: use drm_crtc_handle_vblank()
  drm: make drm_vblank_count_and_time() static
  ...
2016-07-15 11:01:37 +10:00
Ben Skeggs
0e67bed2c7 drm/nouveau: check for supported chipset before booting fbdev off the hw
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Cc: stable@vger.kernel.org
2016-07-14 11:55:10 +10:00
Ben Skeggs
e8ff979492 drm/nouveau/fifo/gp100: initial support
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-07-14 11:53:25 +10:00
Ben Skeggs
2100292c95 drm/nouveau: prevent oops if no mmu subdev present
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2016-07-14 11:53:25 +10:00
Lukas Wunner
55c868a322 drm/nouveau: Forbid runtime pm on driver unload
The PCI core calls pm_runtime_forbid() on device probe in pci_pm_init(),
making this the default state when nouveau is loaded. nouveau_drm_load()
therefore calls pm_runtime_allow(), but there's no pm_runtime_forbid()
in nouveau_drm_unload() to balance it. Add it so that we leave the
device in the same state that we found it.

This isn't a bug, it's just good housekeeping. When nouveau is first
loaded with runpm=1, then unloaded and loaded again with runpm=0,
pm_runtime_forbid() will be called from nouveau_pmops_runtime_idle() or
nouveau_pmops_runtime_suspend(), so the behaviour is correct. The nvidia
blob doesn't use runtime pm, but if it ever does, this commit avoids
that it has to clean up behind nouveau.

Cc: Ben Skeggs <bskeggs@redhat.com>
Tested-by: Karol Herbst <karolherbst@gmail.com>
Tested-by: Peter Wu <peter@lekensteyn.nl>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/92cf96445088217a4d7d7081b90140f2d6f047da.1465392124.git.lukas@wunner.de
2016-06-24 08:49:26 +02:00
Lukas Wunner
c1b16b4560 drm/nouveau: Don't leak runtime pm ref on driver unload
nouveau_drm_load() calls pm_runtime_put() if nouveau_runtime_pm != 0,
but nouveau_drm_unload() calls pm_runtime_get_sync() unconditionally.
We therefore leak a runtime pm ref whenever nouveau is loaded with
runpm=0 and then unloaded. The GPU will subsequently never runtime
suspend even if nouveau is loaded again with runpm=1.

Fix by taking the runtime pm ref under the same condition that it was
released on driver load.

Fixes: 5addcf0a5f ("nouveau: add runtime PM support (v0.9)")
Cc: Dave Airlie <airlied@redhat.com>
Cc: Ben Skeggs <bskeggs@redhat.com>
Reported-by: Karol Herbst <karolherbst@gmail.com>
Tested-by: Karol Herbst <karolherbst@gmail.com>
Tested-by: Peter Wu <peter@lekensteyn.nl>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1544b82007037601fbc510b1a50edc56c529e75f.1465392124.git.lukas@wunner.de
2016-06-24 08:49:25 +02:00
Daniel Vetter
a325725633 drm: Lobotomize set_busid nonsense for !pci drivers
We already have a fallback in place to fill out the unique from
dev->unique, which is set to something reasonable in drm_dev_alloc.

Which means we only need to have a special set_busid for pci devices,
to be able to care the backwards compat code for drm 1.1 around, which
libdrm still needs.

While developing and testing this patch things blew up in really
interesting ways, and the code is rather confusing in naming things
between the kernel code, ioctl #defines and libdrm. For the next brave
dragon slayer, document all this madness properly in the userspace
interface section of gpu.tmpl.

v2: Make drm_dev_set_unique static and update kerneldoc.

v3: Entire rewrite, plus document what's going on for posterity in the
gpu docbook uapi section.

v4: Drop accidental amdgpu hunk (Emil).

v5: Drop accidental omapdrm vblank counter change (Emil).

v6: Rebase on top of the sphinx conversion.

Cc: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Cc: Emil Velikov <emil.l.velikov@gmail.com>
Tested-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk> (virt_gpu)
Reviewed-by: Emil Velikov <emil.l.velikov@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2016-06-21 21:56:23 +02:00
Dave Airlie
bb4cec0222 Merge tag 'topic/lockless-gem-bo-freeing-2016-06-01' of git://anongit.freedesktop.org/drm-intel into drm-next
lockless gem bo freeing patches (and the oddball related patch) for all
the drivers who's maintainers are asleep at the helm - includes you ;-)

I based this on top of drm-fixes to include Chris' fix for the cma issue.

* tag 'topic/lockless-gem-bo-freeing-2016-06-01' of git://anongit.freedesktop.org/drm-intel: (21 commits)
  drm/arcpgu: Use lockless gem BO free callback
  drm/sun4i: Use lockless gem BO free callback
  drm/omapdrm: Nuke dummy fb->dirty callback
  drm/msm: Nuke dummy fb->dirty callback
  drm/rockchip: Use cma gem vm ops
  drm/sti: Use lockless gem BO free callback
  drm: sti: remove useless call to dev->struct_mutex
  drm/virtio: Use lockless gem BO free callback
  drm/tilcdc: Use lockless gem BO free callback
  drm/shmob: Use lockless gem BO free callback
  drm/rockchip: Use lockless gem BO free callback
  drm/rcar-du: Use lockless gem BO free callback
  drm/qxl: Use lockless gem BO free callback
  drm/nouveau: Use lockless gem BO free callback
  drm/mga200g: Use lockless gem BO free callback
  drm/fls-dcu: Use lockless gem BO free callback
  drm/cirrus: Use lockless gem BO free callback
  drm/bochs: Use lockless gem BO free callback
  drm/atmel: Use lockless gem BO free callback
  drm/ast: Use lockless gem BO free callback
  ...
2016-06-09 11:02:30 +10:00