Commit Graph

24882 Commits

Author SHA1 Message Date
Paulo Zanoni 010cf73d46 drm/i915/fbc: rewrite the multiple_pipes_ok() code for locking
Older FBC platforms have this restriction where FBC can't be enabled
if multiple pipes are enabled. In the current code, we disable FBC
before the second pipe becomes visible.

One of the problems with this code is that the current
multiple_pipes_ok() implementation just iterates through all CRTCs
looking at their states, but it doesn't make sure that the state
locks are grabbed. It also can't just grab the locks for every CRTC
since this would kill one of the biggest advantages of atomic
modesetting.

After the recent FBC changes, we now have the appropriate locks for
the given CRTC, so we can just try to maintain the state of each CRTC
and update it once intel_fbc_pre_update is called.

As a last note, I don't have gen 2/3 machines to test this code. My
current plan is to enable FBC on just the newer platforms, so this
patch is just an attempt to get the gen 2/3 code at least looking
sane, so if one day someone decide to fix FBC on these platforms, they
may have less work to do.

Not-tested-by: Paulo Zanoni <paulo.r.zanoni@intel.com> (only on HSW+)
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453210558-7875-16-git-send-email-paulo.r.zanoni@intel.com
2016-01-29 18:15:56 -02:00
Paulo Zanoni 65c7600f07 drm/i915/fbc: make sure we cancel the work function at fbc_disable
Just to be sure nothing will survive a module unload. We need to do
this after the unlock in order to make sure the function won't get
stuck trying to grab the lock we already own while we wait for it to
finish.

Reported-by: Reported-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453210558-7875-15-git-send-email-paulo.r.zanoni@intel.com
2016-01-29 18:15:43 -02:00
Paulo Zanoni c937ab3e58 drm/i915/fbc: rename the FBC disable functions
Instead of:
 - intel_fbc_disable_crtc(crtc)
 - intel_fbc_disable(dev_priv)
we now have:
 - intel_fbc_disable(crtc)
 - intel_fbc_global_disable(dev_priv)

This is because all the other functions that take a CRTC are called
 - intel_fbc_something(crtc)
Instead of:
 - intel_fbc_something_crtc(crtc)

And I also hope that the word "global" is going to help make it more
explicit that "global" is the unusual case, not the opposite.

Reported-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453210558-7875-14-git-send-email-paulo.r.zanoni@intel.com
2016-01-29 18:13:33 -02:00
Paulo Zanoni 60eb2cc71c drm/i915/fbc: unexport intel_fbc_deactivate
With the addition and usage of intel_fbc_pre_update,
intel_fbc_deactivate is not used anymore outside intel_fbc.c, so kill
the exported function and rename __intel_fbc_deactivate.

Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453210558-7875-13-git-send-email-paulo.r.zanoni@intel.com
2016-01-29 18:12:49 -02:00
Paulo Zanoni 1eb52238a5 drm/i915/fbc: fix the FBC state checking code
We'll now call intel_fbc_pre_update instead of intel_fbc_deactivate
during atomic commits. This will continue to guarantee that we
deactivate FBC and it will also update the state checking structures
at the correct time. Then, later, at the point where we were calling
intel_fbc_update, we'll only need to call intel_fbc_post_update.

Also add the proper warnings in case we don't have the appropriate
locks. Daniel mentioned the warnings will have to be removed for async
commits, but let's keep them here while we can.

Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453210558-7875-12-git-send-email-paulo.r.zanoni@intel.com
2016-01-29 18:12:07 -02:00
Paulo Zanoni 212890cfcd drm/i915/fbc: split intel_fbc_update into pre and post update
So now pre_update will be responsible for unconditionally deactivating
FBC and updating the state cache, while post_update will be
responsible for checking if it can be enabled, then enabling it.

This is one more step into proper locking.

Notice that intel_fbc_flush now calls post_update directly. The FBC
flush can only happen for drawing operations - since we explicitly
ignore the flips -, so the FBC state is not expected to have changed
at this point. With this we can just run post_update, which will make
sure we won't deactivate+reactivate FBC as would be the case now if we
called pre_update + post_update.

Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453210558-7875-11-git-send-email-paulo.r.zanoni@intel.com
2016-01-29 18:11:48 -02:00
Paulo Zanoni aaf78d276b drm/i915/fbc: introduce struct intel_fbc_state_cache
Per the new atomic locking rules, we need to cache the CRTC, plane and
FB state structures we use so we can access them later without needing
more locks. So do this.

Notice that there are some pieces of the FBC code that look at things
that are only computed during the modeset, so we can't just can't
precompute whether FBC can be activated during the update_state_cache
stage. We may be able to do this later.

Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453210558-7875-10-git-send-email-paulo.r.zanoni@intel.com
2016-01-29 18:11:09 -02:00
Paulo Zanoni fcf38d1349 drm/i915/fbc: unconditionally update FBC during atomic commits
We unconditionally disable/update FBC even during the page flip
IOCTLs, and an unconditional disable/update at every atomic commit
touching the primary plane shouldn't impact PC state residency
noticeably. Besides, the code that checks for rotation is a good hint
that we may be forgetting something else, so let's leave all the
decisions to intel_fbc.c, making the code much safer.

Once we have the code to properly make FBC enable/update decisions
based on atomic states, with proper locking, then we'll be able to
evaluate whether it will be worth trying to optimize the cases where a
disable isn't needed.

v2: Upstream moved and now our patch needs to remove dev_priv.

Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453406837-10511-1-git-send-email-paulo.r.zanoni@intel.com
2016-01-29 18:10:54 -02:00
Paulo Zanoni 261fe99ac2 drm/i915/fbc: don't flush for operations on the wrong frontbuffer
If frontbuffer_bits doesn't match the current frontbuffer, there's no
reason to recompress or update FBC.

There was a plan to make the FBC test suite catch this type of
problem, but it never got implemented due to being low priority.

While at it, also implement Ville's suggestion and use
plane->frontbuffer_bit instead of INTEL_FRONTBUFFER_PRIMARY.

Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453210558-7875-8-git-send-email-paulo.r.zanoni@intel.com
2016-01-29 18:10:38 -02:00
Paulo Zanoni 0dd81544c9 drm/i915/fbc: don't use the frontbuffer tracking subsystem for flips
Before this patch, page flips would call intel_frontbuffer_flip() and
intel_frontbuffer_flip_complete(), which would call intel_fbc_flush(),
which would call intel_fbc_update(). The problem is that drawing
operations also trigger intel_fbc_flush() calls, so it's not
guaranteed that we have the CRTC and FB locks grabbed when
intel_fbc_flush() happens, since the call trace may come from the
rendering path.

We're trying to make the FBC code grab the appropriate CRTC/FB locks,
so split the drawing and the flipping logic in order to achieve that
in later patches. So now the frontbuffer tracking code is just going
to be used for frontbuffer drawing, and intel_fbc_update() is going to
be used directly for actual page flips.

As a note, we don't need to call intel_fbc_flip() during the two
places where we call intel_frontbuffer_flip() since in one of them we
already have an intel_fbc_update() call, and in the other we have the
planes disabled.

Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453210558-7875-7-git-send-email-paulo.r.zanoni@intel.com
2016-01-29 18:10:20 -02:00
Paulo Zanoni ab34a7e8b5 drm/i915/fbc: replace frequent dev_priv->fbc.x with fbc->x
We say "dev_priv->fbc.something" way too many times in our code while
we could be saying just "fbc->something" with a previous declaration
of fbc. This has been bothering me for a while but I didn't want to
patch it since I wanted to fix the real problems first. But as I add
more code I keep thinking about it, especially since it makes the code
easier to read and it can make us fit 80 columns easier, so let's just
do the change now.

While at it, also rename from i915_fbc to intel_fbc because the whole
FBC code uses intel_fbc.

v2: Rebase after the work_fn changes.

Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453406763-10400-1-git-send-email-paulo.r.zanoni@intel.com
2016-01-29 18:09:37 -02:00
Paulo Zanoni b183b3f143 drm/i915/fbc: introduce struct intel_fbc_reg_params
The early return inside __intel_fbc_update does not completely check
all the parameters that affect the FBC register values. For example,
we currently lack looking at crtc->adjusted_y (for the fence Y offset)
and all the parameters that affect the CFB size (for i8xx).

Instead of just adding the missing parameters to the check and hoping
that any changes to the fbc_activate functions also come with a
matching change to the __intel_fbc_update check, introduce a new
structure where we store these parameters and use the structure at the
fbc_activate function. Of course, it's still possible to access
everything from dev_priv in those functions, but IMHO the new code
will be harder to break.

v2: Rebase.

Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453210558-7875-5-git-send-email-paulo.r.zanoni@intel.com
2016-01-29 18:08:38 -02:00
Paulo Zanoni 44a8a25708 drm/i915/fbc: extract intel_fbc_can_enable()
Make our enable/activate checking model more explicit, especially
since we now have intel_fbc_can_activate().

Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453210558-7875-4-git-send-email-paulo.r.zanoni@intel.com
2016-01-29 18:08:25 -02:00
Paulo Zanoni 615b40d7e4 drm/i915/fbc: extract intel_fbc_can_activate()
Extract all the code that checks if the FBC configuration is valid to
its own function, making __intel_fbc_update() much simpler.

Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453210558-7875-3-git-send-email-paulo.r.zanoni@intel.com
2016-01-29 18:07:38 -02:00
Paulo Zanoni ca18d51d77 drm/i915/fbc: wait for a vblank instead of 50ms when enabling
Instead of waiting for 50ms, just wait until the next vblank, since
it's the minimum requirement. The whole infrastructure of FBC is based
on vblanks, so waiting for X vblanks instead of X milliseconds sounds
like the correct way to go. Besides, 50ms may be less than a vblank on
super slow modes that may or may not exist.

There are some small improvements in PC state residency (due to the
fact that we're now using 16ms for the common modes instead of 50ms),
but the biggest advantage is still the correctness of being
vblank-based instead of time-based.

v2:
  - Rebase after changing the patch order.
  - Update the commit message.
v3:
  - Fix bogus vblank_get() instead of vblank_count() (Ville).
  - Don't forget to call drm_crtc_vblank_{get,put} (Chris, Ville)
  - Adjust the performance details on the commit message.
v4:
  - Don't grab the FBC mutex just to grab the vblank (Maarten)

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453406585-10233-1-git-send-email-paulo.r.zanoni@intel.com
2016-01-29 18:07:08 -02:00
Alex Deucher ad32152eb2 drm/amdgpu: no need to load MC firmware on fiji
Vbios does this for us on asic_init.

Reviewed-by: Ken Wang >Qingqing.Wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2016-01-29 11:10:40 -05:00
Mat Martineau bbc396993a drm/i915: Fix file permissions
No functional change

Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Fixes: f8d03ea005 ("drm/i915: increase the tries for HDMI hotplug live status checking")
Link: http://patchwork.freedesktop.org/patch/msgid/1454023325-26265-1-git-send-email-mathew.j.martineau@linux.intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2016-01-29 10:16:24 +02:00
Gerd Hoffmann f2e305108f drm/i915: refine qemu south bridge detection
The test for the qemu q35 south bridge added by commit
"39bfcd52 drm/i915: more virtual south bridge detection"
also matches on real hardware.  Having the check for
virtual systems last in the list is not enough to avoid
that ...

Refine the check by additionally verifying the pci
subsystem id to see whenever it *really* is qemu.

[ v2: fix subvendor tyops ]

Reported-and-tested-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Tested-by: Bruno Wolff III <bruno@wolff.to>
Cc: drm-intel-fixes@lists.freedesktop.org
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453719748-10944-1-git-send-email-kraxel@redhat.com
(cherry picked from commit 1e859111c1)
2016-01-29 09:15:03 +02:00
Andreas Ziegler 428398e44a drm/i915: Remove select to deleted STOP_MACHINE from Kconfig
Commit 5bab6f60cb ("drm/i915: Serialise updates to GGTT with access
through GGTT on Braswell") depended upon a working stop_machine() and
so forced the selection of STOP_MACHINE. However, commit 86fffe4a61
("kernel: remove stop_machine() Kconfig dependency") removed the option
STOP_MACHINE from init/Kconfig and ensured that stop_machine()
universally works. Due to the order in which the patches were applied,
removing the select from DRM_I915 got lost during merging.

Remove the now obsolete select statement.

Signed-off-by: Andreas Ziegler <andreas.ziegler@fau.de>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/1453722079-2604-1-git-send-email-andreas.ziegler@fau.de
Cc: drm-intel-fixes@lists.freedesktop.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
(cherry picked from commit 21fabbebff)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2016-01-29 09:13:58 +02:00
Ville Syrjälä 2850cfddfb drm/i915: Fix NULL plane->fb oops on SKL
In this atomic age, we can't trust the plane->fb pointer anymore.
It might get update too late. Instead we are supposed to use the
plane_state->fb pointer instead. Let's do that in
intel_plane_obj_offset() and avoid problems from dereferencing the
potentially stale plane->fb pointer.

Paulo found this with 'kms_frontbuffer_tracking --show-hidden --run-subtest nop-1p-rte'
but it can be reproduced with just plain old kms_setplane.

I was too lazy to bisect this, so not sure exactly when it broke. The
most obvious candidate
commit ce7f172856 ("drm/i915: Fix i915_ggtt_view_equal to handle rotation correctly")
was actually still fine, so it must have broken some time after that.

Here's the resulting fireworks:
BUG: unable to handle kernel NULL pointer dereference at           (null)
IP: [<ffffffffa02d2d9a>] intel_fill_fb_ggtt_view+0x1b/0x15a [i915]
PGD 8a5f6067 PUD 8a5f5067 PMD 0
Oops: 0000 [#1] PREEMPT SMP
Modules linked in: i915 i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops drm intel_gtt agpgart netconsole mousedev hid_generic psmouse usbhid atkbd libps2 coretemp hwmon efi_pstore intel_rapl iosf_mbi x86_pkg_temp_thermal efivars pcspkr e1000e sdhci_pci ptp pps_core sdhci i2c_i801 mmc_core i2c_hid hid i8042 serio evdev sch_fq_codel ip_tables x_tables ipv6 autofs4
CPU: 1 PID: 260 Comm: kms_plane Not tainted 4.4.0-skl+ #171
Hardware name: Intel Corporation Skylake Client platform/Skylake Y LPDDR3 RVP3, BIOS SKLSE2R1.R00.B104.B00.1511030553 11/03/2015
task: ffff88008bde2d80 ti: ffff88008a6ec000 task.ti: ffff88008a6ec000
RIP: 0010:[<ffffffffa02d2d9a>]  [<ffffffffa02d2d9a>] intel_fill_fb_ggtt_view+0x1b/0x15a [i915]
RSP: 0018:ffff88008a6efa10  EFLAGS: 00010086
RAX: 0000000000000001 RBX: ffff8801674f4240 RCX: 0000000000000014
RDX: ffff88008a7440c0 RSI: 0000000000000000 RDI: ffff88008a6efa40
RBP: ffff88008a6efa30 R08: ffff88008bde3598 R09: 0000000000000001
R10: ffff88008b782000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff88008a7440c0 R14: 0000000000000000 R15: ffff88008a7449c0
FS:  00007fa0c07a28c0(0000) GS:ffff88016ec40000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000008a6ff000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffff8801674f4240 0000000000000000 ffff88008a7440c0 0000000000000000
 ffff88008a6efaa0 ffffffffa02daf25 ffffffff814ec80e 0000000000070298
 ffff8800850d0000 ffff88008a6efaa0 ffffffffa02c49c2 0000000000000002
Call Trace:
 [<ffffffffa02daf25>] intel_plane_obj_offset+0x2d/0xa9 [i915]
 [<ffffffff814ec80e>] ? _raw_spin_unlock_irqrestore+0x4b/0x60
 [<ffffffffa02c49c2>] ? gen9_write32+0x2e8/0x3b8 [i915]
 [<ffffffffa02eecfc>] skl_update_plane+0x203/0x4c5 [i915]
 [<ffffffffa02ca1ab>] intel_plane_atomic_update+0x53/0x6a [i915]
 [<ffffffffa02494a4>] drm_atomic_helper_commit_planes_on_crtc+0x142/0x1d5 [drm_kms_helper]
 [<ffffffffa02de44b>] intel_atomic_commit+0x1262/0x1350 [i915]
 [<ffffffffa024a0ee>] ? __drm_atomic_helper_crtc_duplicate_state+0x2f/0x41 [drm_kms_helper]
 [<ffffffffa01ef089>] ? drm_atomic_check_only+0x3e3/0x552 [drm]
 [<ffffffffa01ef245>] drm_atomic_commit+0x4d/0x52 [drm]
 [<ffffffffa024996b>] drm_atomic_helper_update_plane+0xcb/0x118 [drm_kms_helper]
 [<ffffffffa01e42e8>] __setplane_internal+0x1c8/0x224 [drm]
 [<ffffffffa01e477f>] drm_mode_setplane+0x14e/0x172 [drm]
 [<ffffffffa01d8117>] drm_ioctl+0x265/0x3ad [drm]
 [<ffffffffa01e4631>] ? drm_mode_cursor_common+0x158/0x158 [drm]
 [<ffffffff810d00ab>] ? current_kernel_time64+0x5e/0x98
 [<ffffffff810a76ea>] ? trace_hardirqs_on_caller+0x17a/0x196
 [<ffffffff8119880f>] do_vfs_ioctl+0x42b/0x4ea
 [<ffffffff811a2b72>] ? __fget_light+0x4d/0x71
 [<ffffffff81198911>] SyS_ioctl+0x43/0x61
 [<ffffffff814ed057>] entry_SYSCALL_64_fastpath+0x12/0x6f

Cc: drm-intel-fixes@lists.freedesktop.org
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Testcase: igt/kms_plane
Reported-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453220597-28973-1-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
(cherry picked from commit e794129444)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2016-01-29 09:13:28 +02:00
Ville Syrjälä 6f94b6dd00 drm/i915: Don't reject primary plane windowing with color keying enabled on SKL+
On SKL+ plane scaling is mutually exclusive with color keying. The code
check for this, but during some refactoring the code got changed to
also reject primary plane windowing when color keying is used. There is
no such restriction in the hardware, so restore the original logic.

Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Fixes: 061e4b8d65 ("drm/i915: clean up atomic plane check functions, v2.")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1452883613-28549-1-git-send-email-ville.syrjala@linux.intel.com
Cc: stable@vger.kernel.org
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
(cherry picked from commit 693bdc28a7)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2016-01-29 09:12:58 +02:00
Jani Nikula 5efd407674 drm/i915/dp: fall back to 18 bpp when sink capability is unknown
Per DP spec, the source device should fall back to 18 bpp, VESA range
RGB when the sink capability is unknown. Fix the color depth
clamping. 18 bpp color depth should ensure full color range in automatic
mode.

The clamping has been HDMI specific since its introduction in

commit 996a2239f9
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Fri Apr 19 11:24:34 2013 +0200

    drm/i915: Disable high-bpc on pre-1.4 EDID screens

Cc: stable@vger.kernel.org
Reported-and-tested-by: Dihan Wickremasuriya <nayomal@gmail.com>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=105331
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1452695720-7076-1-git-send-email-jani.nikula@intel.com
(cherry picked from commit 013dd9e038)
2016-01-29 09:12:21 +02:00
Francisco Jerez 935a0ff0e1 drm/i915: Make sure DC writes are coherent on flush.
We need to set the DC FLUSH PIPE_CONTROL bit on Gen7+ to guarantee
that writes performed via the HDC are visible in memory.  Fixes an
intermittent failure in a Piglit test that writes to a BO from a
shader using GL atomic counters (implemented as HDC untyped atomics)
and then expects the memory to read back the same value after mapping
it on the CPU.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=91298
Tested-by: Mark Janes <mark.a.janes@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1452740379-3194-1-git-send-email-currojerez@riseup.net
(cherry picked from commit 965fd602a6)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2016-01-29 09:11:26 +02:00
Gerd Hoffmann 1e859111c1 drm/i915: refine qemu south bridge detection
The test for the qemu q35 south bridge added by commit
"39bfcd52 drm/i915: more virtual south bridge detection"
also matches on real hardware.  Having the check for
virtual systems last in the list is not enough to avoid
that ...

Refine the check by additionally verifying the pci
subsystem id to see whenever it *really* is qemu.

[ v2: fix subvendor tyops ]

Reported-and-tested-by: Bjørn Mork <bjorn@mork.no>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Tested-by: Bruno Wolff III <bruno@wolff.to>
Cc: drm-intel-fixes@lists.freedesktop.org
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453719748-10944-1-git-send-email-kraxel@redhat.com
2016-01-29 08:56:26 +02:00
Dave Airlie d8b8eb829d Merge branch 'drm-rockchip-next-fixes-2016-01-22' of https://github.com/markyzq/kernel-drm-rockchip into drm-fixes
Here are some fixes for drm/rockchip, these fixes base on drm-next.

These fixes works on my popmetal(rk3288) board.

About patch: drm/atomic-helper: Export framebuffer_changed()
Daniel Vetter ack for merging it through rockchip git trees, so framebuffer_changed() can be reused by drm/rockchip.

All others looks good, so I'd like you can land them.

* 'drm-rockchip-next-fixes-2016-01-22' of https://github.com/markyzq/kernel-drm-rockchip:
  drm/rockchip: respect CONFIG_DRM_FBDEV_EMULATION
  drm/rockchip: fix wrong pitch/size using on gem
  drm/rockchip: explain why we can't wait_for_vblanks
  drm/rockchip: don't wait for vblank if fb hasn't changed
  drm/atomic-helper: Export framebuffer_changed()
  drm/rockchip/dsi: fix handling mipi_dsi_pixel_format_to_bpp result
  drm/rockchip: vop: fix mask when updating interrupts
  drm/rockchip: cleanup unnecessary export symbol
  drm/rockchip: Don't build rockchip_drm_vop as modules
2016-01-29 10:04:29 +10:00
Rob Clark 96c5d076f0 drm/vmwgfx: respect 'nomodeset'
Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>.
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-01-29 10:03:44 +10:00
Dave Airlie 2ad14a6ca2 This pull request just includes the !CONFIG_PM_SLEEP build fix for
vc4.
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Merge tag 'drm-vc4-fixes-2015-01-19' of http://github.com/anholt/linux into drm-fixes

This pull request just includes the !CONFIG_PM_SLEEP build fix for
vc4.

* tag 'drm-vc4-fixes-2015-01-19' of http://github.com/anholt/linux:
  drm/vc4: Remove broken attempt at GPU reset using genpd.
2016-01-29 10:02:35 +10:00
Dave Airlie 2081e78a5c Merge branch 'drm-etnaviv-fixes' of git://git.pengutronix.de/git/lst/linux into drm-fixes
A bunch of etnaviv fixes for 4.5-rc. Most of them are fixing
things in code paths that will only be hit if something goes
wrong, which have been unearthed by more extensive testing.

The only thing that doesn't really qualify as fixes is an UAPI
extension that userspace wants to rely on being present, so
I want to fast-track this into 4.5 before etnaviv ends up in a
released kernel.

* 'drm-etnaviv-fixes' of git://git.pengutronix.de/git/lst/linux:
  drm/etnaviv: call correct function when trying to vmap a DMABUF
  drm/etnaviv: rename etnaviv_gem_vaddr to etnaviv_gem_vmap
  drm/etnaviv: fix get pages error path in etnaviv_gem_vaddr
  drm/etnaviv: fix memory leak in IOMMU init path
  drm/etnaviv: add further minor features and varyings count
  drm/etnaviv: add helper for comparing model/revision IDs
  drm/etnaviv: add helper to extract bitfields
  drm/etnaviv: use defined constants for the chip model
  drm/etnaviv: update common and state_hi xml.h files
  drm/etnaviv: ignore VG GPUs with FE2.0
  drm/etnaviv: fix failure path if model is zero
  drm/etnaviv: hold object lock while getting pages for coredump
  drm/etnaviv: remove owner assignment from platform_driver
2016-01-29 10:01:54 +10:00
Dave Airlie 55ce625fc5 Merge branch 'drm-fixes-4.5' of git://people.freedesktop.org/~agd5f/linux into drm-fixes
Misc radeon and amdgpu fixes:
- SMU firmware loading fix for Stoney
- DP audio fixes for DCE4.1
- Don't expose fbdev device if no connectors
- fix page table LRU list update handling

* 'drm-fixes-4.5' of git://people.freedesktop.org/~agd5f/linux:
  drm/amdgpu: only move pt bos in LRU list on success
  drm/radeon: fix DP audio support for APU with DCE4.1 display engine
  drm/radeon: Add a common function for DFS handling
  drm/radeon: cleaned up VCO output settings for DP audio
  drm/amd/powerplay: Update SMU firmware loading for Stoney
  drm/amdgpu: don't init fbdev if we don't have any connectors
  drm/radeon: only init fbdev if we have connectors
  drm/radeon: Ensure radeon bo is unreserved in radeon_gem_va_ioctl
  drm/amdgpu: fix next_rptr handling for debugfs
  drm/radeon: properly byte swap vce firmware setup
  drm/amdgpu: add a message to indicate when powerplay is enabled (v2)
  drm/amdgpu: fix amdgpu_bo_pin_restricted VRAM placing v2
  drm/amd/amdgpu: Improve amdgpu_dpm* macros to avoid unexpected result (v2)
  drm/amdgpu: Allow the driver to load if amdgpu.powerplay=1 on asics without powerplay support
  drm/amdgpu: Use drm_calloc_large for VM page_tables array
  drm/amdgpu: Add some tweaks to gfx 8 soft reset
  drm/amdgpu: fix tonga smu resume
2016-01-29 10:00:45 +10:00
Ville Syrjälä b16bb01fd2 drm/i915: Fix intel_tile_width() parameters
The fb_modifiers and cpp arguments passed to intel_tile_width() in
intel_fill_fb_ggtt_view() got accidentally swapped around. I'm pretty
sure I fixed this already, but could be I lost the fix accidentally
during some rebases or something. Anyway, fix it up for real.

Fixes: d9b3288ecf ("drm/i915: change intel_fill_fb_ggtt_view() to use the real tile size")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453316739-13296-8-git-send-email-ville.syrjala@linux.intel.com
Testcase: igt/kms_rotation_crc/primary-rotation-90
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: drm-intel-fixes@lists.freedesktop.org
2016-01-28 20:57:08 +02:00
Ville Syrjälä ac484963f9 drm/i915: Standardize on 'cpp' for bytes per pixel
We more or less randomly call the "bytes per pixel" value
'cpp', 'bytes_per_pixel', 'pixel_size', or even 'bpp'. Let's just pick
one and stick to it. I've chosen 'cpp'.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453316739-13296-6-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-28 20:56:57 +02:00
Ville Syrjälä 54ea9da88f drm/i915: Make display gtt offsets u32
Using 'unsigned long' for ggtt offsets doesn't make much sense. Use
'u32' instead since we've not yet seen a >4GiB ggtt.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453316739-13296-5-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-28 20:56:38 +02:00
Ville Syrjälä 11d23e6fa1 drm/i915: Pass rotation_info to intel_rotate_fb_obj_pages()
intel_rotate_fb_obj_pages() doens't need the entire gtt view, just the
rotation info suffices.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453316739-13296-4-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-28 20:56:32 +02:00
Ville Syrjälä 871302555b drm/i915: Pass stride to rotate_pages()
Pass stride in addition to width and height to rotate_pages(). For now
width and stride are the same, but once framebuffer offsets enter the
scene that may no longer be the case.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453316739-13296-3-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-28 20:56:14 +02:00
Ville Syrjälä 7723f47dc6 drm/i915: Rename the rotated gtt view member to 'rotated'
Also rename 'rotation_info' to 'rotated' to match the view type exactly,
this should avoid confusion which union members is valid for each view
type.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453316739-13296-2-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-28 20:55:55 +02:00
Dave Gordon 0aa498d59c Fix pointer tests in error-handling paths
In the error-handling paths of i915_gem_do_execbuffer() and
intel_crtc_page_flip(), the local pointer-to-request variables
were expected to be either valid pointers or NULL. Since

  2682708 drm/i915: simplify allocation of driver-internal requests

they could also be ERR_PTR() values, so the tests need to be
updated to accommodate this case.

Signed-off-by: Dave Gordon <david.s.gordon@intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453978089-29127-1-git-send-email-tvrtko.ursulin@linux.intel.com
2016-01-28 17:42:14 +00:00
Tvrtko Ursulin f4e2deceb6 drm/i915: Fix premature LRC unpin in GuC mode
In GuC mode LRC pinning lifetime depends exclusively on the
request liftime. Since that is terminated by the seqno update
that opens up a race condition between GPU finishing writing
out the context image and the driver unpinning the LRC.

To extend the LRC lifetime we will employ a similar approach
to what legacy ringbuffer submission does.

We will start tracking the last submitted context per engine
and keep it pinned until it is replaced by another one.

Note that the driver unload path is a bit fragile and could
benefit greatly from efforts to unify the legacy and exec
list submission code paths.

At the moment i915_gem_context_fini has special casing for the
two which are potentialy not needed, and also depends on
i915_gem_cleanup_ringbuffer running before itself.

v2:
 * Move pinning into engine->emit_request and actually fix
   the reference/unreference logic. (Chris Wilson)

 * ring->dev can be NULL on driver unload so use a different
   route towards it.

v3:
 * Rebase.
 * Handle the reset path. (Chris Wilson)
 * Exclude default context from the pinning - it is impossible
   to get it right before default context special casing in
   general is eliminated.

v4:
 * Rebased & moved context tracking to
   intel_logical_ring_advance_and_submit.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Issue: VIZ-4277
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Nick Hoath <nicholas.hoath@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453976997-25424-1-git-send-email-tvrtko.ursulin@linux.intel.com
2016-01-28 17:23:15 +00:00
Tvrtko Ursulin a0b4a6a8db drm/i915: Extract context unpinning to its own function
Will enable cleaner implementation of a following fix and
easier code unification in the future.

Idea and code by Chris Wilson.

v2: Do not return before last_contexts on engines are unpinned.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
2016-01-28 17:23:15 +00:00
Tvrtko Ursulin 321fe304f1 drm/i915: Make LRC pinning own a reference to the context
Will simplify the following fix and sounds logical.

v2: Add some whitespace to separate logic better. (Chris Wilson)

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Nick Hoath <nicholas.hoath@intel.com>
2016-01-28 17:23:15 +00:00
Tvrtko Ursulin e5292823c1 drm/i915: Make LRC (un)pinning work on context and engine
Previously intel_lr_context_(un)pin were operating on requests
which is in conflict with their names.

If we make them take a context and an engine, it makes the names
make more sense and it also makes future fixes possible.

v2: Rebase for default_context/kernel_context change.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Nick Hoath <nicholas.hoath@intel.com>
2016-01-28 17:23:15 +00:00
Nicolai Hähnle 28b8d66e0c drm/amdgpu: only move pt bos in LRU list on success
This fixes a race condition in the error case: since the pt bos have not
necessarily been reserved in case of an error, we could move a pt bo that
is currently in the middle of being evicted/moved by another process,
which then resulted in a BUG_ON in ttm_bo_add_to_lru.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-01-28 11:46:45 -05:00
Amitoj Kaur Chawla 642f0f2a15 drm/amdkfd: Remove unnecessary cast in kfree
Remove an unnecassary cast in the argument to kfree.

Found using Coccinelle. The semantic patch used to find this is as follows:

//<smpl>
@@
type T;
expression *f;
@@

- kfree((T *)(f));
+ kfree(f);
//</smpl>

Signed-off-by: Amitoj Kaur Chawla <amitoj1606@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2016-01-28 14:40:11 +02:00
Colin Ian King f785d98711 drm/amdgpu: fix non-ANSI declaration of amdgpu_amdkfd_gfx_*_get_functions()
amdgpu_amdkfd_gfx_7_get_functions and amdgpu_amdkfd_gfx_8_0_get_functions
have no parameters, so use the normal void parameter convention to make
them  match their prototypes in the header file
drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>
2016-01-28 14:39:34 +02:00
Tvrtko Ursulin d9da6aa035 drm/i915: Fix VCS ring selection after uapi decoupling
This got broken in:

   commit de1add3605
   Author: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
   Date:   Fri Jan 15 15:12:50 2016 +0000

       drm/i915: Decouple execbuf uAPI from internal implementation

BSD ring flags need to be shifted before they can be considered
indices into the ring array.

Reported by Zhipeng Gong.

v2: Simplify the code. (Chris Wilson)

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Zhipeng Gong <zhipeng.gong@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/1453902069-31353-1-git-send-email-tvrtko.ursulin@linux.intel.com
Testcase: igt/gem_exec_basic # bdw-gt3
2016-01-28 10:25:49 +00:00
Dan Carpenter 15b6b804b6 drm/vmwgfx: fix a NULL dereference
We dereference "eaction->event" inside the call to drm_send_event_locked()
so should hold off on setting it to NULL until afterward.

Fixes: fb740cf249 ("drm: Create drm_send_event helpers")
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20160128090646.GA5824@mwanda
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-28 10:28:15 +01:00
Slava Grigorev fe6fc1f132 drm/radeon: fix DP audio support for APU with DCE4.1 display engine
Properly setup the DFS divider for DP audio for DCE4.1.

Signed-off-by: Slava Grigorev <slava.grigorev@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2016-01-27 12:50:25 -05:00
Slava Grigorev a64c9dab1c drm/radeon: Add a common function for DFS handling
Move encoding of DFS (digital frequency synthesizer) divider into a
separate function and improve calculation precision.

Signed-off-by: Slava Grigorev <slava.grigorev@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2016-01-27 12:48:32 -05:00
Slava Grigorev c9a392eac1 drm/radeon: cleaned up VCO output settings for DP audio
This is preparation for the fixes in the following patches.

Signed-off-by: Slava Grigorev <slava.grigorev@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2016-01-27 12:47:28 -05:00
Rex Zhu 08b21d30c6 drm/amd/powerplay: Update SMU firmware loading for Stoney
Fix firmware init on Stoney when powerplay is enabled.

Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-01-27 11:40:38 -05:00
Imre Deak a4eba47b25 drm/i915: Move stolen memory initialization earlier during loading
The only device specific dependency of the stolen memory setup is the
MMIO mapping and the stolen memory size. Both are already available in
i915_gtt_init(), so move the stolen initialization to there. The
clean-up code for i915_gtt_init() is in i915_global_gtt_cleanup(), so
move the stolen memory clean-up code there too.

This will be needed by an upcoming patch that needs the details of the
memory we reserve, but the change is also part of our generic goal to
move the initialization of resources with no or little dependencies on
other device specific resources towards the beginning of the init
sequence.

Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: David Weinehall <david.weinehall@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453209992-25995-8-git-send-email-imre.deak@intel.com
2016-01-27 17:43:16 +02:00
Imre Deak ad5c3d3ffb drm/i915: Move MCHBAR setup earlier during init
Move the MCHBAR setup right after the MMIO setup, since the two things
are logically related and the MCHBAR setup code doesn't depend on any
other device specific resource. We'll also need MCHBAR to be ready
earlier in an upcoming patch, so this is also a preparation for that.

Factor out the init/clean-up code to separate functions to make things
clearer in the i915_driver_load()/unload() functions.

Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: David Weinehall <david.weinehall@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453209992-25995-7-git-send-email-imre.deak@intel.com
2016-01-27 17:43:16 +02:00
Imre Deak 399bb5b6db drm/i915: Move allocation of various workqueues earlier during init
Workqueue initalization doesn't depend on any other device specific
resource, so move it close to the beginning, so we don't need to
consider them when thinking about dependencies for other resources.

Also factor out things to separate init/cleanup functions to make
i915_driver_load()/unload() clearer, atm it's somewhat difficult to
follow there in what order resources are inited/cleaned-up.

Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: David Weinehall <david.weinehall@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453209992-25995-6-git-send-email-imre.deak@intel.com
2016-01-27 17:43:15 +02:00
Imre Deak d64aa096a4 drm/i915: Sanitize i915_gem_load() init and clean-up
Factor out common clean-up code for the GEM load time init function.
Also rename i915_gem_load() to i915_gem_load_init() to have a better
match with its new clean-up function.

No functional change.

Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: David Weinehall <david.weinehall@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453209992-25995-5-git-send-email-imre.deak@intel.com
2016-01-27 17:43:15 +02:00
Imre Deak a8a4058925 drm/i915: Sanitize GEM shrinker init and clean-up
Factor out the common GEM shrinker clean-up code and call the shrinker
init function from the same function from where the corresponding
shrinker clean-up function is called. Also add sanity checking to the
shrinker and OOM registration calls.

Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: David Weinehall <david.weinehall@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453209992-25995-4-git-send-email-imre.deak@intel.com
2016-01-27 17:43:14 +02:00
Imre Deak 02036cee83 drm/i915: Sanitize i915_get_bridge_dev() error path
Clarify the name of the label on the error path, making it clear what's
being cleaned up. The kmem_cache_destroy() calls are NOPs on the
corresponding error path.

Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: David Weinehall <david.weinehall@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453209992-25995-3-git-send-email-imre.deak@intel.com
2016-01-27 17:43:14 +02:00
Imre Deak 89250fec1c drm/i915: Sanitize DMC/CSR ucode cleanup code
commit ebae38d061
Author: Animesh Manna <animesh.manna@intel.com>
Date:   Wed Oct 28 23:58:55 2015 +0200

    drm/i915/gen9: csr_init after runtime pm enable

moved the DMC/CSR initialization later during driver loading, but didn't
move the cleanup earlier correspondingly during unloading. Fix this up.

Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: David Weinehall <david.weinehall@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453209992-25995-2-git-send-email-imre.deak@intel.com
2016-01-27 17:43:13 +02:00
Daniel Vetter 9a15a87338 Revert "drm/i915: Fix context/engine cleanup order"
This reverts commit 1803c035ef.

It seems to blow up on module unload due to a use-after free hitting a
BUG_ON with CONFIG_DEBUG_SG. Quoting from Tvrtko's mail:

"I've decoded the instructions and it pointed to SG_MAGIC checking:

488b8098010000  mov 0x198(%rax),%rax
ba21436587      mov $0x87654321,%edx
488b00          mov (%rax),%rax       *** CRASH

"Grep showed 0x87654321 is SG_MAGIC, so likely candidate for this code
pattern is:

static inline struct page *sg_page(struct scatterlist *sg)
{
    BUG_ON(sg->sg_magic != SG_MAGIC);
    BUG_ON(sg_is_chain(sg));
    return (struct page *)((sg)->page_link & ~0x3);
}

"Which would mean the offender is in intel_logical_ring_cleanup is most
likely:

...
    if (ring->status_page.obj) {
        kunmap(sg_page(ring->status_page.obj->pages->sgl));
        ring->status_page.obj = NULL;
    }
...

"I think that the i915_gem_context_fini will do a final unref on
dev_priv->kernel_context and then the ring buff has a copy which is
left dangling because:

    lrc_setup_hardware_status_page(ring,
        dev_priv->kernel_context->engine[ring->id].state);

and:

ring->status_page.obj = default_ctx_obj;

"Where default_ctx_obj == dev_priv->kernel_context->engine[ring->id].state
So indeed looks like the unload ordering is the trigger.  In fact it
is almost the same fragility wrt/ kernel_context hidden dependency I
expressed my worry about in an e-mail yesterday or so. It only shows
if CONFIG_DEBUG_SG is set, otherwise it accesses freed memory and
probably just survives."

This causes serious trouble in our CI system since it took out all
gen8+ machines. Not yet clear why this wasn't caught in pre-merge
testing.

Backtrace from CI, for posterity:

[  163.737836] general protection fault: 0000 [#1] PREEMPT SMP
[  163.737849] Modules linked in: ax88179_178a usbnet mii snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic i915(-) x86_pkg_temp_thermal intel_powerclamp coretemp crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_codec snd_hwdep snd_hda_core snd_pcm mei_me mei i2c_hid e1000e ptp pps_core [last unloaded: snd_hda_intel]
[  163.737902] CPU: 0 PID: 5812 Comm: rmmod Tainted: G     U  W       4.5.0-rc1-gfxbench+ #1
[  163.737911] Hardware name: System manufacturer System Product Name/Z170M-PLUS, BIOS 0505 11/16/2015
[  163.737920] task: ffff8800bb99cf80 ti: ffff88022ff2c000 task.ti: ffff88022ff2c000
[  163.737928] RIP: 0010:[<ffffffffa018f723>]  [<ffffffffa018f723>] intel_logical_ring_cleanup+0x83/0x100 [i915]
[  163.737969] RSP: 0018:ffff88022ff2fd30  EFLAGS: 00010282
[  163.737975] RAX: 6b6b6b6b6b6b6b6b RBX: ffff8800bb2f31b8 RCX: 0000000000000002
[  163.737982] RDX: 0000000087654321 RSI: 000000000000000d RDI: ffff8800bb2f31f0
[  163.737989] RBP: ffff88022ff2fd40 R08: 0000000000000000 R09: 0000000000000001
[  163.737996] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8800bb2f0000
[  163.738003] R13: ffff8800bb2f8fc8 R14: ffff8800bb285668 R15: 000055af1ae55210
[  163.738010] FS:  00007f187014b700(0000) GS:ffff88023bc00000(0000) knlGS:0000000000000000
[  163.738021] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  163.738030] CR2: 0000558f84e4cbc8 CR3: 000000022cd55000 CR4: 00000000003406f0
[  163.738039] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[  163.738048] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[  163.738057] Stack:
[  163.738062]  ffff8800bb2f31b8 ffff8800bb2f0000 ffff88022ff2fd70 ffffffffa0180414
[  163.738079]  ffff8800bb2f0000 ffff8800bb285668 ffff8800bb2856c8 ffffffffa0242460
[  163.738094]  ffff88022ff2fd98 ffffffffa0202d30 ffff8800bb285668 ffff8800bb285668
[  163.738109] Call Trace:
[  163.738140]  [<ffffffffa0180414>] i915_gem_cleanup_engines+0x34/0x60 [i915]
[  163.738185]  [<ffffffffa0202d30>] i915_driver_unload+0x150/0x270 [i915]
[  163.738198]  [<ffffffff815100f4>] drm_dev_unregister+0x24/0xa0
[  163.738208]  [<ffffffff815106ce>] drm_put_dev+0x1e/0x60
[  163.738225]  [<ffffffffa01412a0>] i915_pci_remove+0x10/0x20 [i915]
[  163.738237]  [<ffffffff8143d9b4>] pci_device_remove+0x34/0xb0
[  163.738249]  [<ffffffff81533d15>] __device_release_driver+0x95/0x140
[  163.738259]  [<ffffffff81533eb6>] driver_detach+0xb6/0xc0
[  163.738268]  [<ffffffff81532de3>] bus_remove_driver+0x53/0xd0
[  163.738278]  [<ffffffff815348d7>] driver_unregister+0x27/0x50
[  163.738289]  [<ffffffff8143ca15>] pci_unregister_driver+0x25/0x70
[  163.738299]  [<ffffffff81511de4>] drm_pci_exit+0x74/0x90
[  163.738337]  [<ffffffffa02034a9>] i915_exit+0x20/0x1a5 [i915]
[  163.738349]  [<ffffffff8110400f>] SyS_delete_module+0x18f/0x1f0
[  163.738361]  [<ffffffff817b8a9b>] entry_SYSCALL_64_fastpath+0x16/0x73
[  163.738370] Code: ff d0 48 89 df e8 de a1 fd ff 48 8d 7b 38 e8 25 ab fd ff 48 8b 83 90 00 00 00 48 85 c0 74 25 48 8b 80 98 01 00 00 ba 21 43 65 87 <48> 8b 00 48 39 10 75 3c f6 40 08 01 75 38 48 c7 83 90 00 00 00
[  163.738459] RIP  [<ffffffffa018f723>] intel_logical_ring_cleanup+0x83/0x100 [i915]
[  163.738498]  RSP <ffff88022ff2fd30>
[  163.738507] ---[ end trace 68f69ce4740fa44f ]---

Cc: Nick Hoath <nicholas.hoath@intel.com>
Cc: Dave Gordon <david.s.gordon@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Tested-by: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2016-01-27 13:47:50 +01:00
Lucas Stach a0a5ab3e99 drm/etnaviv: call correct function when trying to vmap a DMABUF
When trying to get the vmap address of an imported buffer, we must
call into the appropriate helper function, to allow the exporter to
establish the vmap, instead of trying to vmap the buffer on our own.

Add an indirection through etnaviv_gem_ops to allow the correct
implementation to be called.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2016-01-26 18:54:01 +01:00
Lucas Stach ce3088fdb5 drm/etnaviv: rename etnaviv_gem_vaddr to etnaviv_gem_vmap
This function follows the semantics of vmap() by returning
NULL in case of an error. To make things less confusing
rename it to make make both functions more closely related.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2016-01-26 18:54:01 +01:00
Lucas Stach 9f07bb0d4a drm/etnaviv: fix get pages error path in etnaviv_gem_vaddr
In case that etnaviv_gem_get_pages is unable to get the required
pages the object mutex needs to be unlocked. Also return NULL in
this case instead of propagating the error, as callers of this
function might not be prepared to handle a pointer error, but
expect this call to follow the semantics of a plain vmap to return
NULL in case of an error.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2016-01-26 18:54:00 +01:00
Lucas Stach 45d16a6d94 drm/etnaviv: fix memory leak in IOMMU init path
Plug in error handling to free any allocated ressources in the
IOMMU init path.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2016-01-26 18:53:59 +01:00
Russell King 602eb48966 drm/etnaviv: add further minor features and varyings count
Export further minor feature bitmasks and the varyings count from
the GPU specifications registers to userspace.

Acked-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2016-01-26 18:53:58 +01:00
Russell King 472f79dcf2 drm/etnaviv: add helper for comparing model/revision IDs
Add and use a helper for comparing the model and revision IDs.

Acked-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2016-01-26 18:53:58 +01:00
Russell King 52f36ba1d6 drm/etnaviv: add helper to extract bitfields
Add a helper to extract etnaviv bitfields from register values.

Acked-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2016-01-26 18:53:57 +01:00
Russell King 507f899137 drm/etnaviv: use defined constants for the chip model
Use the defined constants in common.xml.h for the chip model rather
than coding these as hex numbers.

Acked-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2016-01-26 18:53:56 +01:00
Russell King e2a2e263e0 drm/etnaviv: update common and state_hi xml.h files
Update the common and state_hi xml.h header files from the etnaviv
repository.

Acked-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2016-01-26 18:53:55 +01:00
Russell King b98c66887e drm/etnaviv: ignore VG GPUs with FE2.0
Ignore GPUs with a 2.0 front end.  These have a different register
layout for the front end, which provokes imprecise aborts from the
register accesses in the 'gpu' debugfs file.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2016-01-26 18:53:27 +01:00
Alex Deucher f49d45c973 drm/amdgpu: don't init fbdev if we don't have any connectors
Don't init fbdev if we don't have connectors.  E.g., if you have
a PX laptop with the displays attached to an IGP with no driver
support, you may end up with a blank screen rather than falling
back to vesa, etc.

Based on a similar radeon patch from Rob Clark.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-01-26 00:35:56 -05:00
Rob Clark f95429eccc drm/radeon: only init fbdev if we have connectors
This fixes an issue that was noticed on an optimus/prime laptop with
a kernel that was old enough to not support the integrated intel gfx
(which was driving all the outputs), but did have support for the
discrete radeon gpu.  The end result was not falling back to VESA and
leaving the user with a black screen.

(Plus it is kind of silly to create an framebuffer device if there
are no outputs hooked up to the gpu.)

Signed-off-by: Rob Clark <robdclark@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-01-26 00:35:49 -05:00
Daniel Vetter 09859d2a3c drm/crtc-helper: Add caveat to disable_unused_functions doc
This shouldn't be used by atomic drivers any more, it confuses the
state tracking.

Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1452695476-31147-1-git-send-email-daniel.vetter@ffwll.ch
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2016-01-25 19:35:06 +01:00
Daniel Vetter 941a77b078 drm/gma500: Remove empty preclose hook
I'm auditing them all, empty ones just confuse ...

Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Acked-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1452548477-15905-9-git-send-email-daniel.vetter@ffwll.ch
Acked-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2016-01-25 19:35:05 +01:00
Daniel Vetter d704f8e1a6 drm/armada: Remove NULL open/pre/postclose hooks
The compiler will do this, but the void hits when grepping all the
hooks for a subsystem wide audit are slightly annoying. So remove them
for next time around.

Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Acked-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1452548477-15905-8-git-send-email-daniel.vetter@ffwll.ch
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2016-01-25 19:35:05 +01:00
Daniel Vetter 0b5ef656f7 drm/fsl: Remove preclose hook
Doesn't do anything, but annoys when auditing them all.

Cc: Jianwei Wang <jianwei.wang.chn@gmail.com>
Acked-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1452548477-15905-7-git-send-email-daniel.vetter@ffwll.ch
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2016-01-25 19:35:04 +01:00
Daniel Vetter fb740cf249 drm: Create drm_send_event helpers
Use them in the core vblank code and exynos/vmwgfx drivers.

Note that the difference between wake_up_all and _interruptible in
vmwgfx doesn't matter since the only waiter is the core code in
drm_fops.c. And that is interruptible.

v2: Adjust existing kerneldoc too.

Reviewed-by: Alex Deucher <alexander.deucher@amd.com> (v1)
Acked-by: Daniel Stone <daniels@collabora.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Cc: Inki Dae <inki.dae@samsung.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1452548477-15905-6-git-send-email-daniel.vetter@ffwll.ch
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
[danvet: Squash in compile fixup, spotted by 0-day.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-25 19:34:43 +01:00
Nick Hoath 1803c035ef drm/i915: Fix context/engine cleanup order
Swap the order of context & engine cleanup, so that contexts are cleaned
up first, and *then* engines. This is a more sensible order anyway, but
in particular has become necessary since the 'intel_ring_initialized()
must be simple and inline' patch, which now uses ring->dev as an
'initialised' flag, so it can now be NULL after engine teardown. This
in turn can cause a problem in the context code, which (used to) check
the ring->dev->struct_mutex -- causing a fault if ring->dev was NULL.

Also rename the cleanup function to reflect what it actually does
(cleanup engines, not a ringbuffer), and fix an annoying whitespace issue.

v2: Also make the fix in i915_load_modeset_init, not just in
    i915_driver_unload (Chris Wilson)
v3: Had extra stuff in it.
v4: Reverted extra stuff (so we're back to v2).
    Rebased and updated commentary above (Dave Gordon).

Signed-off-by: Nick Hoath <nicholas.hoath@intel.com>
Signed-off-by: Dave Gordon <david.s.gordon@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> (v2)
Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/1453405067-32890-3-git-send-email-david.s.gordon@intel.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-25 19:09:03 +01:00
Chris Wilson 768e159f43 drm/i915: Improve handling of overlapping objects
The generic interval tree we use to speed up range invalidation is an
augmented rbtree that can report all overlapping intervals for a given
range. Therefore we do not need to degrade to a linear list if we find
overlapping objects. Oops.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453397563-2848-1-git-send-email-chris@chris-wilson.co.uk
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-25 19:03:46 +01:00
Matthew Dawson 186bac8152 drm/radeon: Ensure radeon bo is unreserved in radeon_gem_va_ioctl
Found with lockdep while testing gpu reset.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Matthew Dawson <matthew@mjdsystems.ca>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-01-25 10:57:17 -05:00
Arun Siluvery 6ecf56ae1d drm/i915/gen9: Add WaOCLCoherentLineFlush
This is mainly required for future enabling of pre-emptive
command execution.

v2: explain purpose of change (Chris)

Reviewed-by: Nick Hoath <nicholas.hoath@intel.com>
Cc: Dave Gordon <david.s.gordon@intel.com>
Signed-off-by: Arun Siluvery <arun.siluvery@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453412634-29238-9-git-send-email-arun.siluvery@linux.intel.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-25 16:49:15 +01:00
Arun Siluvery a78536e73f drm/i915/skl: Enable Per context Preemption granularity control
Per context preemption granularity control is only available from SKL:E0+

Actual WA is to disable percontext preemption granularity control until D0
which is the default case so this is equivalent to the inverse of
WaDisablePerCtxtPreemptionGranularityControl:skl

v2: add some detail to commit msg (Chris)

Reviewed-by: Nick Hoath <nicholas.hoath@intel.com>
Cc: Dave Gordon <david.s.gordon@intel.com>
Signed-off-by: Arun Siluvery <arun.siluvery@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453412634-29238-8-git-send-email-arun.siluvery@linux.intel.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-25 16:48:52 +01:00
Arun Siluvery 6107497eee drm/i915/skl: Add GEN8_L3SQCREG4 to HW whitelist
Required for WaDisableLSQCROPERFforOCL:skl

This register is added to HW whitelist to support WA required for future
enabling of pre-emptive command execution, WA implementation will be in
userspace and it cannot program this register if it is not on HW whitelist.

v2: explain purpose of changes (Chris)

Reviewed-by: Nick Hoath <nicholas.hoath@intel.com>
Signed-off-by: Arun Siluvery <arun.siluvery@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453412634-29238-7-git-send-email-arun.siluvery@linux.intel.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-25 16:48:43 +01:00
Arun Siluvery a786d53a2c drm/i915/bxt: Add GEN8_L3SQCREG4 to HW whitelist
Required for WaDisableLSQCROPERFforOCL:bxt

According to WA database these are only applicable for BXT:A0 but since
A0 and A1 shares the same GT these are extended for A1 as well.

This register is added to HW whitelist to support WA required for future
enabling of pre-emptive command execution, WA implementation will be in
userspace and it cannot program this register if it is not on HW whitelist.

v2: explain purpose of changes (Chris)

Reviewed-by: Nick Hoath <nicholas.hoath@intel.com>
Signed-off-by: Arun Siluvery <arun.siluvery@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453412634-29238-6-git-send-email-arun.siluvery@linux.intel.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-25 16:48:35 +01:00
Arun Siluvery 2c8580e4e2 drm/i915/bxt: Add GEN9_CS_DEBUG_MODE1 to HW whitelist
Required for,
WaDisableObjectLevelPreemptionForTrifanOrPolygon:bxt
WaDisableObjectLevelPreemptionForInstancedDraw:bxt
WaDisableObjectLevelPreemtionForInstanceId:bxt

According to WA database these are only applicable for BXT:A0 but since
A0 and A1 shares the same GT these are extended for A1 as well.

These are also required for SKL until B0 but not adding them because they
are pre-production steppings.

This register is added to HW whitelist to support WA required for future
enabling of pre-emptive command execution, WA implementation will be in
userspace and it cannot program this register if it is not on HW whitelist.

v2: use lower case in register defines (Nick)
v3: explain purpose of changes (Chris)

Reviewed-by: Nick Hoath <nicholas.hoath@intel.com>
Signed-off-by: Arun Siluvery <arun.siluvery@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453412634-29238-5-git-send-email-arun.siluvery@linux.intel.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-25 16:48:28 +01:00
Arun Siluvery 3669ab6191 drm/i915/gen9: Add HDC_CHICKEN1 to HW whitelist
Required for WaAllowUMDToModifyHDCChicken1:skl,bxt

This register is added to HW whitelist to support WA required for future
enabling of pre-emptive command execution, WA implementation will be in
userspace and it cannot program this register if it is not on HW whitelist.

v2: explain purpose of changes (Chris)

Reviewed-by: Nick Hoath <nicholas.hoath@intel.com>
Signed-off-by: Arun Siluvery <arun.siluvery@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453412634-29238-4-git-send-email-arun.siluvery@linux.intel.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-25 16:48:22 +01:00
Arun Siluvery e0f3fa096d drm/i915/gen9: Add GEN8_CS_CHICKEN1 to HW whitelist
Required for WaEnablePreemptionGranularityControlByUMD:skl,bxt

This register is added to HW whitelist to support WA required for future
enabling of pre-emptive command execution, WA implementation will be in
userspace and it cannot program this register if it is not on HW whitelist.

v2: explain purpose of WA (Chris)

Reviewed-by: Nick Hoath <nicholas.hoath@intel.com>
Signed-off-by: Arun Siluvery <arun.siluvery@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453412634-29238-3-git-send-email-arun.siluvery@linux.intel.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-25 16:48:15 +01:00
Arun Siluvery 33136b06d5 drm/i915/gen9: Add framework to whitelist specific GPU registers
Some of the HW registers are privileged and cannot be written to from
non-privileged batch buffers coming from userspace unless they are added to
the HW whitelist. This whitelist is maintained by HW and it is different from
SW whitelist. Userspace need write access to them to implement preemption
related WA.

The reason for using this approach is, the register bits that control
preemption granularity at the HW level are not context save/restored; so even
if we set these bits always in kernel they are going to change once the
context is switched out.  We can consider making them non-privileged by
default but these registers also contain other chicken bits which should not
be allowed to be modified.

In the later revisions controlling bits are save/restored at context level but
in the existing revisions these are exported via other debug registers and
should be on the whitelist. This patch adds changes to provide HW with a list
of registers to be whitelisted. HW checks this list during execution and
provides access accordingly.

HW imposes a limit on the number of registers on whitelist and it is
per-engine.  At this point we are only enabling whitelist for RCS and we don't
foresee any requirement for other engines.

The registers to be whitelisted are added using generic workaround list
mechanism, even these are only enablers for userspace workarounds. But by
sharing this mechanism we get some test assets without additional cost (Mika).

v2: rebase

v3: parameterize RING_FORCE_TO_NONPRIV() as _MMIO() should be limited to
i915_reg.h (Ville), drop inline for wa_ring_whitelist_reg (Mika).

v4: improvements suggested by Chris Wilson.
Clarify that this is HW whitelist and different from the one maintained in
driver. This list is engine specific but it gets initialized along with other
WA which is RCS specific thing, so make it clear that we are not doing any
cross engine setup during initialization.
Make HW whitelist count of each engine available in debugfs.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Arun Siluvery <arun.siluvery@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453412634-29238-2-git-send-email-arun.siluvery@linux.intel.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-25 16:48:04 +01:00
Andreas Ziegler 21fabbebff drm/i915: Remove select to deleted STOP_MACHINE from Kconfig
Commit 5bab6f60cb ("drm/i915: Serialise updates to GGTT with access
through GGTT on Braswell") depended upon a working stop_machine() and
so forced the selection of STOP_MACHINE. However, commit 86fffe4a61
("kernel: remove stop_machine() Kconfig dependency") removed the option
STOP_MACHINE from init/Kconfig and ensured that stop_machine()
universally works. Due to the order in which the patches were applied,
removing the select from DRM_I915 got lost during merging.

Remove the now obsolete select statement.

Signed-off-by: Andreas Ziegler <andreas.ziegler@fau.de>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/1453722079-2604-1-git-send-email-andreas.ziegler@fau.de
Cc: drm-intel-fixes@lists.freedesktop.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-25 16:38:39 +01:00
Russell King f6427760a2 drm/etnaviv: fix failure path if model is zero
Fix the failure path to call pm_runtime_mark_last_busy() when failing
due to the model field being zero.

Acked-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2016-01-25 14:23:51 +01:00
Lucas Stach 339073ef77 drm/etnaviv: hold object lock while getting pages for coredump
While all objects that get coredumped have an active IOVA and thus
pages already populated, etnaviv_gem_get_pages() still requires the
object lock to be held.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2016-01-25 14:23:49 +01:00
Fabio Estevam 23a9d5dcb6 drm/etnaviv: remove owner assignment from platform_driver
This platform_driver does not need to set an owner as it will be
populated by the driver core.

Generated by scripts/coccinelle/api/platform_no_drv_owner.cocci.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2016-01-25 14:23:46 +01:00
Alex Dai 397097b026 drm/i915/guc: Decouple GuC engine id from ring id
Previously GuC uses ring id as engine id because of same definition.
But this is not true since this commit:

commit de1add3605
Author: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Date:   Fri Jan 15 15:12:50 2016 +0000

    drm/i915: Decouple execbuf uAPI from internal implementation

Added GuC engine id into GuC interface to decouple it from ring id used
by driver.

v2: Keep ring name print out in debugfs; using for_each_ring() where
    possible to keep driver consistent. (Chris W.)

Signed-off-by: Alex Dai <yu.dai@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453579094-29860-1-git-send-email-yu.dai@intel.com
2016-01-25 10:56:30 +00:00
Tvrtko Ursulin 77b04a0428 drm/i915: More use of the cached LRC state
Since:

commit 82352e908a
Author: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Date:   Fri Jan 15 17:12:45 2016 +0000

    drm/i915: Cache LRC state page in the context

and:

commit 0eb973d31d
Author: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Date:   Fri Jan 15 15:10:28 2016 +0000

    drm/i915: Cache ringbuffer GTT VMA

We can also remove the ring buffer start updates on every
context update since the address will not change for the
duration of the LRC pin.

For GuC we can remove the update altogether because it
only cares about the ring buffer start.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Alex Dai <yu.dai@intel.com>
Cc: Dave Gordon <david.s.gordon@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/1453466567-33369-1-git-send-email-tvrtko.ursulin@linux.intel.com
2016-01-25 10:55:19 +00:00
Daniel Vetter 6d3729ac13 drm/vmwgfx: Use the new event init/free functions
Cc: Rob Clark <robdclark@gmail.com
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Acked-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1452548477-15905-5-git-send-email-daniel.vetter@ffwll.ch
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-25 08:40:34 +01:00
Daniel Vetter 7142a348e7 drm/exynos: Use the new event init/free functions
Also fixes a bug in IPP with not correctly checking/allocating for
space in the event space. Not a too serious bug since it's not a
real ringbuffer, just a limit to avoid too much kernel allocations.

Cc: Rob Clark <robdclark@gmail.com>
Cc: Inki Dae <inki.dae@samsung.com>
Acked-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1452548477-15905-4-git-send-email-daniel.vetter@ffwll.ch
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-25 08:40:26 +01:00
Daniel Vetter 2dd500f187 drm: Add functions to setup/tear down drm_events.
An attempt at not spreading out the file_priv->event_space stuff out
quite so far and wide.  And I think fixes something in ipp_get_event()
that is broken (or if they are doing something more weird/subtle, then
breaks it in a fun way).

Based upon a patch from Rob Clark, rebased and polished.

v2: Spelling fixes (Alex).

Cc: Alex Deucher <alexdeucher@gmail.com>
Acked-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Cc: Rob Clark <robdclark@gmail.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1452548477-15905-3-git-send-email-daniel.vetter@ffwll.ch
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2016-01-25 08:40:09 +01:00
Daniel Vetter bcb877e4dc drm: kerneldoc for drm_fops.c
Just prep work before I throw more drm_event refactorings on top.

Acked-by: Daniel Stone <daniels@collabora.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1452548477-15905-2-git-send-email-daniel.vetter@ffwll.ch
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2016-01-25 08:39:58 +01:00
Daniel Vetter 40f8cf4b5c drm/fbdev-helper: Explain how to debug console_lock fun
Every new KMS driver writer seems to run into this and wonder how
exactly drm_fb_helper_initial_config can die doing nothing at all.
Set up some big warnings signs around this newbie trap to avoid future
frustration and wasting everyone's time.

v2: Edits from Laurent.

Cc: Carlos Palminha <CARLOS.PALMINHA@synopsys.com>
Cc: Xinliang Liu <xinliang.liu@linaro.org>
Cc: laurent.pinchart@ideasonboard.com
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453449225-10954-1-git-send-email-daniel.vetter@ffwll.ch
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2016-01-25 08:32:22 +01:00
Daniel Vetter 947eaebc31 drm/i915: Update DRIVER_DATE to 20160124
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-24 22:49:17 +01:00
Tetsuo Handa 1d5cfdb076 tree wide: use kvfree() than conditional kfree()/vfree()
There are many locations that do

  if (memory_was_allocated_by_vmalloc)
    vfree(ptr);
  else
    kfree(ptr);

but kvfree() can handle both kmalloc()ed memory and vmalloc()ed memory
using is_vmalloc_addr().  Unless callers have special reasons, we can
replace this branch with kvfree().  Please check and reply if you found
problems.

Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Acked-by: Michal Hocko <mhocko@suse.com>
Acked-by: Jan Kara <jack@suse.com>
Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
Reviewed-by: Andreas Dilger <andreas.dilger@intel.com>
Acked-by: "Rafael J. Wysocki" <rjw@rjwysocki.net>
Acked-by: David Rientjes <rientjes@google.com>
Cc: "Luck, Tony" <tony.luck@intel.com>
Cc: Oleg Drokin <oleg.drokin@intel.com>
Cc: Boris Petkov <bp@suse.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-01-22 17:02:18 -08:00
Christian König 41f2d99056 drm/amdgpu: fix next_rptr handling for debugfs
That somehow got lost.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <david1.zhou@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
2016-01-22 14:44:08 -05:00
Alex Deucher cc78eb2288 drm/radeon: properly byte swap vce firmware setup
Firmware is LE.  Need to properly byteswap some of the fields
so they are interpreted correctly by the driver on BE systems.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2016-01-22 10:50:24 -05:00
Alex Deucher 9441f964f8 drm/amdgpu: add a message to indicate when powerplay is enabled (v2)
Makes it clear to the user which power management path is in
use.

v2: make consistent with dpm

Reviewed-by: Rex Zhu <Rex.Zhu@amd.com>
Reviewed-by: Tom St Denis <tom.stdenis@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-01-22 10:49:42 -05:00
Christian König 78d0e182b6 drm/amdgpu: fix amdgpu_bo_pin_restricted VRAM placing v2
We could pin BOs into invisible VRAM otherwise.

v2: make logic more readable as suggested by Michel

Cc: stable@vger.kernel.org
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com> (v1)
Reviewed-by: Rex Zhu <Rex.Zhu@amd.com> (v1)
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
2016-01-22 10:47:48 -05:00
Eric Huang 4b5ece24ce drm/amd/amdgpu: Improve amdgpu_dpm* macros to avoid unexpected result (v2)
The two macros returns are values which probably are used
in the expression of calculation. Without the brackets
the result of the expression may be wrong.

v2: agd: squash both patches together

Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Eric Huang <JinHuiEric.Huang@amd.com>
2016-01-22 10:47:48 -05:00
John Keeping f0442df215 drm/rockchip: respect CONFIG_DRM_FBDEV_EMULATION
If DRM_FBDEV_EMULATION is not selected in the config then we can save a
bit of space by not including the framebuffer code.

Signed-off-by: John Keeping <john@metanate.com>
2016-01-22 08:45:31 +08:00
Linus Torvalds eae21770b4 Merge branch 'akpm' (patches from Andrew)
Merge third patch-bomb from Andrew Morton:
 "I'm pretty much done for -rc1 now:

   - the rest of MM, basically

   - lib/ updates

   - checkpatch, epoll, hfs, fatfs, ptrace, coredump, exit

   - cpu_mask simplifications

   - kexec, rapidio, MAINTAINERS etc, etc.

   - more dma-mapping cleanups/simplifications from hch"

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (109 commits)
  MAINTAINERS: add/fix git URLs for various subsystems
  mm: memcontrol: add "sock" to cgroup2 memory.stat
  mm: memcontrol: basic memory statistics in cgroup2 memory controller
  mm: memcontrol: do not uncharge old page in page cache replacement
  Documentation: cgroup: add memory.swap.{current,max} description
  mm: free swap cache aggressively if memcg swap is full
  mm: vmscan: do not scan anon pages if memcg swap limit is hit
  swap.h: move memcg related stuff to the end of the file
  mm: memcontrol: replace mem_cgroup_lruvec_online with mem_cgroup_online
  mm: vmscan: pass memcg to get_scan_count()
  mm: memcontrol: charge swap to cgroup2
  mm: memcontrol: clean up alloc, online, offline, free functions
  mm: memcontrol: flatten struct cg_proto
  mm: memcontrol: rein in the CONFIG space madness
  net: drop tcp_memcontrol.c
  mm: memcontrol: introduce CONFIG_MEMCG_LEGACY_KMEM
  mm: memcontrol: allow to disable kmem accounting for cgroup2
  mm: memcontrol: account "kmem" consumers in cgroup2 memory controller
  mm: memcontrol: move kmem accounting code to CONFIG_MEMCG
  mm: memcontrol: separate kmem code from legacy tcp accounting code
  ...
2016-01-21 12:32:08 -08:00
Chris Wilson 426960bed3 drm/i915: Seal busy-ioctl uABI and prevent leaking of internal ids
Tvrtko was looking through the execbuffer-ioctl and noticed that the
uABI was tightly coupled to our internal engine identifiers. Close
inspection also revealed that we leak those internal engine identifiers
through the busy-ioctl, and those internal identifiers already do not
match the user identifiers. Fortuitiously, there is only one user of the
set of busy rings from the busy-ioctl, and they only wish to choose
between the RENDER and the BLT engines.

Let's fix the userspace ABI while we still can.

v2: Update the uAPI documentation to explain the identifiers.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Testcase: igt/gem_busy
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1452876706-21620-1-git-send-email-chris@chris-wilson.co.uk
2016-01-21 11:00:35 +00:00
Tvrtko Ursulin de1add3605 drm/i915: Decouple execbuf uAPI from internal implementation
At the moment execbuf ring selection is fully coupled to
internal ring ids which is not a good thing on its own.

This dependency is also spread between two source files and
not spelled out at either side which makes it hidden and
fragile.

This patch decouples this dependency by introducing an explicit
translation table of execbuf uAPI to ring id close to the only
call site (i915_gem_do_execbuffer).

This way we are free to change driver internal implementation
details without breaking userspace. All state relating to the
uAPI is now contained in, or next to, i915_gem_do_execbuffer.

As a side benefit, this patch decreases the compiled size
of i915_gem_do_execbuffer.

v2: Extract ring selection into eb_select_ring. (Chris Wilson)

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1452870770-13981-1-git-send-email-tvrtko.ursulin@linux.intel.com
2016-01-21 10:55:44 +00:00
Chris Wilson 7c17d37737 drm/i915: Use ordered seqno write interrupt generation on gen8+ execlists
Broadwell and later currently use the same unordered command sequence to
update the seqno in the HWS status page and then assert the user
interrupt. We should apply the w/a from legacy (where we do an mmio
read to delay the seqno read after the interrupt), but this is not
enough to enforce coherent seqno visibilty on Skylake. Rather than
search for the proper post-interrupt seqno barrier, use a strongly
ordered command sequence to write the seqno, then assert the user
interrupt from the ring.

v2: Move around the wa tail dwords to avoid adding duplicate code.

v3: Add references, comments on workarounds and bit5 check.

References: https://bugs.freedesktop.org/show_bug.cgi?id=93693
Testcase: igt/gem_ring_sync_loop #skl
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453297415-17793-1-git-send-email-mika.kuoppala@intel.com
2016-01-21 11:53:09 +02:00
Mika Kuoppala c81eeea6c1 drm/i915: Limit the auto arming of mmio debugs on vlv/chv
The capability to detect unclaimed register access was
recently introduced for vlv/chv platforms. Apparently
there are plenty of unclaimed access on these platforms,
resulting in new dmesg warns. But as we are trying to form
a beachhead for CI/Bat, all new warns are adding to the
noise and thus not desirable at this point in time.

Make it so that if in these platforms the automatic arming
was responsible for mmio_debug enabling, ignore the warns.

If user/dev wants to fix these, he can still do so by
i915.mmio_debug=1234.

Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1453285943-24614-1-git-send-email-mika.kuoppala@intel.com
2016-01-21 11:52:45 +02:00
Daniel Vetter 6fa283b07e drm/i915: Tune down "GT register while GT waking disabled" message
We've had this since forever, and's randomly reporting issues and as
such causing piles&piles of CI noise. Mika is working on proper debug
infrastructure for this, and on fixing this properly.

Meanwhile make CI more useful for everyone else.

Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=93121
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453233656-12955-1-git-send-email-daniel.vetter@ffwll.ch
2016-01-21 11:50:52 +02:00
Dave Gordon e28e404c3e drm/i915: tidy up a few leftovers
There are a few bits of code which the transformations implemented by
the previous patch reveal to be suboptimal, once the notion of a per-
ring default context has gone away. So this tidies up the leftovers.

It could have been squashed into the previous patch, but that would have
made that patch less clearly a simple transformation. In particular, any
change which alters the code block structure or indentation has been
deferred into this separate patch, because such things tend to make
diffs more difficult to read.

v4:	Rebased

Signed-off-by: Dave Gordon <david.s.gordon@intel.com>
Reviewed-by: Nick Hoath <nicholas.hoath@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453230175-19330-4-git-send-email-david.s.gordon@intel.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-21 09:21:29 +01:00
Dave Gordon ed54c1a1d1 drm/i915: abolish separate per-ring default_context pointers
Now that we've eliminated a lot of uses of ring->default_context,
we can eliminate the pointer itself.

All the engines share the same default intel_context, so we can just
keep a single reference to it in the dev_priv structure rather than one
in each of the engine[] elements. This make refcounting more sensible
too, as we now have a refcount of one for the one pointer, rather than
a refcount of one but multiple pointers.

From an idea by Chris Wilson.

v2:	transform an extra instance of ring->default_context introduced by
    42f1cae8c drm/i915: Restore inhibiting the load of the default context
    That patch's commentary includes:
	v2: Mark the global default context as uninitialized on GPU reset so
	    that the context-local workarounds are reloaded upon re-enabling
    The code implementing that now also benefits from the replacement of
    the multiple (per-ring) pointers to the default context with a single
    pointer to the unique kernel context.

v4:	Rebased, remove underused local (Nick Hoath)

Signed-off-by: Dave Gordon <david.s.gordon@intel.com>
Reviewed-by: Nick Hoath <nicholas.hoath@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/1453230175-19330-3-git-send-email-david.s.gordon@intel.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-21 09:21:29 +01:00
Dave Gordon 2682708839 drm/i915: simplify allocation of driver-internal requests
There are a number of places where the driver needs a request, but isn't
working on behalf of any specific user or in a specific context. At
present, we associate them with the per-engine default context. A future
patch will abolish those per-engine context pointers; but we can already
eliminate a lot of the references to them, just by making the allocator
allow NULL as a shorthand for "an appropriate context for this ring",
which will mean that the callers don't need to know anything about how
the "appropriate context" is found (e.g. per-ring vs per-device, etc).

So this patch renames the existing i915_gem_request_alloc(), and makes
it local (static inline), and replaces it with a wrapper that provides
a default if the context is NULL, and also has a nicer calling
convention (doesn't require a pointer to an output parameter). Then we
change all callers to use the new convention:
OLD:
	err = i915_gem_request_alloc(ring, user_ctx, &req);
	if (err) ...
NEW:
	req = i915_gem_request_alloc(ring, user_ctx);
	if (IS_ERR(req)) ...
OLD:
	err = i915_gem_request_alloc(ring, ring->default_context, &req);
	if (err) ...
NEW:
	req = i915_gem_request_alloc(ring, NULL);
	if (IS_ERR(req)) ...

v4:	Rebased

Signed-off-by: Dave Gordon <david.s.gordon@intel.com>
Reviewed-by: Nick Hoath <nicholas.hoath@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453230175-19330-2-git-send-email-david.s.gordon@intel.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-21 09:21:29 +01:00
Linus Torvalds e3de671dd6 asm-generic changes for 4.5
The asm-generic tree this time contains one series from Nicolas Pitre
 that makes the optimized do_div() implementation from the ARM
 architecture available to all architectures. This also adds stricter
 type checking for callers of do_div, which has uncovered a number
 of bugs in existing code, and fixes up the ones we have found.
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Merge tag 'asm-generic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic

Pull asm-generic updates from Arnd Bergmann:
 "The asm-generic tree this time contains one series from Nicolas Pitre
  that makes the optimized do_div() implementation from the ARM
  architecture available to all architectures.

  This also adds stricter type checking for callers of do_div, which has
  uncovered a number of bugs in existing code, and fixes up the ones we
  have found"

* tag 'asm-generic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
  ARM: asm/div64.h: adjust to generic codde
  __div64_32(): make it overridable at compile time
  __div64_const32(): abstract out the actual 128-bit cross product code
  do_div(): generic optimization for constant divisor on 32-bit machines
  div64.h: optimize do_div() for power-of-two constant divisors
  mtd/sm_ftl.c: fix wrong do_div() usage
  drm/mgag200/mgag200_mode.c: fix wrong do_div() usage
  hid-sensor-hub.c: fix wrong do_div() usage
  ti/fapll: fix wrong do_div() usage
  ti/clkt_dpll: fix wrong do_div() usage
  tegra/clk-divider: fix wrong do_div() usage
  imx/clk-pllv2: fix wrong do_div() usage
  imx/clk-pllv1: fix wrong do_div() usage
  nouveau/nvkm/subdev/clk/gk20a.c: fix wrong do_div() usage
2016-01-20 17:30:20 -08:00
Mark Yao e3c4abdb3b drm/rockchip: fix wrong pitch/size using on gem
args->pitch and args->size may not be set by userspace, sometimes
userspace only malloc args and not memset args to zero, then
args->pitch and args->size is random, it is very danger to use
pitch/size on gem.

pitch's type is u32, and min_pitch's type is int, example,
pitch is 0xffffffff, then pitch < min_pitch return true, then gem will
alloc very very big bufffer, it would eat all the memory and cause kernel
crash.

Stop using pitch/size from args, calc them from other args.

Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
2016-01-21 09:14:05 +08:00
Christoph Hellwig e1c7e32453 dma-mapping: always provide the dma_map_ops based implementation
Move the generic implementation to <linux/dma-mapping.h> now that all
architectures support it and remove the HAVE_DMA_ATTR Kconfig symbol now
that everyone supports them.

[valentinrothberg@gmail.com: remove leftovers in Kconfig]
Signed-off-by: Christoph Hellwig <hch@lst.de>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Aurelien Jacquiot <a-jacquiot@ti.com>
Cc: Chris Metcalf <cmetcalf@ezchip.com>
Cc: David Howells <dhowells@redhat.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Cc: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Cc: Helge Deller <deller@gmx.de>
Cc: James Hogan <james.hogan@imgtec.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Koichi Yasutake <yasutake.koichi@jp.panasonic.com>
Cc: Ley Foon Tan <lftan@altera.com>
Cc: Mark Salter <msalter@redhat.com>
Cc: Mikael Starvik <starvik@axis.com>
Cc: Steven Miao <realmz6@gmail.com>
Cc: Vineet Gupta <vgupta@synopsys.com>
Cc: Christian Borntraeger <borntraeger@de.ibm.com>
Cc: Joerg Roedel <jroedel@suse.de>
Cc: Sebastian Ott <sebott@linux.vnet.ibm.com>
Signed-off-by: Valentin Rothberg <valentinrothberg@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-01-20 17:09:18 -08:00
Linus Torvalds d9569f003c Merge branch 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild
Pull kbuild updates from Michal Marek:
 - Make <modname>-m in makefiles work like <modname>-y and fix the
   fallout
 - Minor genksyms fix
 - Fix race with make -j install modules_install
 - Move -Wsign-compare from make W=1 to W=2
 - Other minor fixes

* 'kbuild' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild:
  kbuild: Demote 'sign-compare' warning to W=2
  Makefile: revert "Makefile: Document ability to make file.lst and file.S" partially
  kbuild: Do not run modules_install and install in paralel
  genksyms: Handle string literals with spaces in reference files
  fixdep: constify strrcmp arguments
  ath10k: Fix build with CONFIG_THERMAL=m
  Revert "drm: Hack around CONFIG_AGP=m build failures"
  kbuild: Allow to specify composite modules with modname-m
  staging/ad7606: Actually build the interface modules
2016-01-20 09:45:43 -08:00
Ville Syrjälä e794129444 drm/i915: Fix NULL plane->fb oops on SKL
In this atomic age, we can't trust the plane->fb pointer anymore.
It might get update too late. Instead we are supposed to use the
plane_state->fb pointer instead. Let's do that in
intel_plane_obj_offset() and avoid problems from dereferencing the
potentially stale plane->fb pointer.

Paulo found this with 'kms_frontbuffer_tracking --show-hidden --run-subtest nop-1p-rte'
but it can be reproduced with just plain old kms_setplane.

I was too lazy to bisect this, so not sure exactly when it broke. The
most obvious candidate
commit ce7f172856 ("drm/i915: Fix i915_ggtt_view_equal to handle rotation correctly")
was actually still fine, so it must have broken some time after that.

Here's the resulting fireworks:
BUG: unable to handle kernel NULL pointer dereference at           (null)
IP: [<ffffffffa02d2d9a>] intel_fill_fb_ggtt_view+0x1b/0x15a [i915]
PGD 8a5f6067 PUD 8a5f5067 PMD 0
Oops: 0000 [#1] PREEMPT SMP
Modules linked in: i915 i2c_algo_bit drm_kms_helper syscopyarea sysfillrect sysimgblt fb_sys_fops drm intel_gtt agpgart netconsole mousedev hid_generic psmouse usbhid atkbd libps2 coretemp hwmon efi_pstore intel_rapl iosf_mbi x86_pkg_temp_thermal efivars pcspkr e1000e sdhci_pci ptp pps_core sdhci i2c_i801 mmc_core i2c_hid hid i8042 serio evdev sch_fq_codel ip_tables x_tables ipv6 autofs4
CPU: 1 PID: 260 Comm: kms_plane Not tainted 4.4.0-skl+ #171
Hardware name: Intel Corporation Skylake Client platform/Skylake Y LPDDR3 RVP3, BIOS SKLSE2R1.R00.B104.B00.1511030553 11/03/2015
task: ffff88008bde2d80 ti: ffff88008a6ec000 task.ti: ffff88008a6ec000
RIP: 0010:[<ffffffffa02d2d9a>]  [<ffffffffa02d2d9a>] intel_fill_fb_ggtt_view+0x1b/0x15a [i915]
RSP: 0018:ffff88008a6efa10  EFLAGS: 00010086
RAX: 0000000000000001 RBX: ffff8801674f4240 RCX: 0000000000000014
RDX: ffff88008a7440c0 RSI: 0000000000000000 RDI: ffff88008a6efa40
RBP: ffff88008a6efa30 R08: ffff88008bde3598 R09: 0000000000000001
R10: ffff88008b782000 R11: 0000000000000000 R12: 0000000000000000
R13: ffff88008a7440c0 R14: 0000000000000000 R15: ffff88008a7449c0
FS:  00007fa0c07a28c0(0000) GS:ffff88016ec40000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000000000000 CR3: 000000008a6ff000 CR4: 00000000003406e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Stack:
 ffff8801674f4240 0000000000000000 ffff88008a7440c0 0000000000000000
 ffff88008a6efaa0 ffffffffa02daf25 ffffffff814ec80e 0000000000070298
 ffff8800850d0000 ffff88008a6efaa0 ffffffffa02c49c2 0000000000000002
Call Trace:
 [<ffffffffa02daf25>] intel_plane_obj_offset+0x2d/0xa9 [i915]
 [<ffffffff814ec80e>] ? _raw_spin_unlock_irqrestore+0x4b/0x60
 [<ffffffffa02c49c2>] ? gen9_write32+0x2e8/0x3b8 [i915]
 [<ffffffffa02eecfc>] skl_update_plane+0x203/0x4c5 [i915]
 [<ffffffffa02ca1ab>] intel_plane_atomic_update+0x53/0x6a [i915]
 [<ffffffffa02494a4>] drm_atomic_helper_commit_planes_on_crtc+0x142/0x1d5 [drm_kms_helper]
 [<ffffffffa02de44b>] intel_atomic_commit+0x1262/0x1350 [i915]
 [<ffffffffa024a0ee>] ? __drm_atomic_helper_crtc_duplicate_state+0x2f/0x41 [drm_kms_helper]
 [<ffffffffa01ef089>] ? drm_atomic_check_only+0x3e3/0x552 [drm]
 [<ffffffffa01ef245>] drm_atomic_commit+0x4d/0x52 [drm]
 [<ffffffffa024996b>] drm_atomic_helper_update_plane+0xcb/0x118 [drm_kms_helper]
 [<ffffffffa01e42e8>] __setplane_internal+0x1c8/0x224 [drm]
 [<ffffffffa01e477f>] drm_mode_setplane+0x14e/0x172 [drm]
 [<ffffffffa01d8117>] drm_ioctl+0x265/0x3ad [drm]
 [<ffffffffa01e4631>] ? drm_mode_cursor_common+0x158/0x158 [drm]
 [<ffffffff810d00ab>] ? current_kernel_time64+0x5e/0x98
 [<ffffffff810a76ea>] ? trace_hardirqs_on_caller+0x17a/0x196
 [<ffffffff8119880f>] do_vfs_ioctl+0x42b/0x4ea
 [<ffffffff811a2b72>] ? __fget_light+0x4d/0x71
 [<ffffffff81198911>] SyS_ioctl+0x43/0x61
 [<ffffffff814ed057>] entry_SYSCALL_64_fastpath+0x12/0x6f

Cc: drm-intel-fixes@lists.freedesktop.org
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Testcase: igt/kms_plane
Reported-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453220597-28973-1-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-20 15:55:01 +02:00
Colin Ian King 70c0616d5a drm/fb_cma_helper: remove duplicate const from drm_fb_cma_alloc
Duplicated const, only one is required.  Also reformat line to ensure
it is less than 80 columns wide.

Signed-off-by: Colin Ian King <colin.king@canonical.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453287574-3645-1-git-send-email-colin.king@canonical.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-20 13:55:57 +01:00
Tvrtko Ursulin 3f36b93797 drm/i915: Do not put big intel_crtc_state on the stack
Having this on stack triggers the -Wframe-larger-than=1024 and
is not nice to put such big things on the kernel stack anyway.

This required a little bit of refactoring to handle the new
failure path from vlv_force_pll_on.

v2: Corrected some whitespace.

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: John Harrison <john.c.harrison@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1453217117-26125-1-git-send-email-tvrtko.ursulin@linux.intel.com
2016-01-20 10:08:54 +00:00
Matt Roper bf22045250 Revert "drm/i915: Add two-stage ILK-style watermark programming (v10)"
This reverts commit 396e33ae20.

This commit was triggering some FIFO underrun warnings on ILK-IVB
platforms (but surprisingly not on HSW/BDW that share more or less the
same codepaths).  These underruns were caught by the continuous
integration (CI) system and could be reproduced consistently when
running the basic acceptance tests (BAT) on the affected platforms.

Note that this revert will cause a visible regression for some
end-users; the "flicker when mouse moves between monitors in X" issue
that was reported before this patch was merged will now return.  However
regressions that are visible to CI have higher priority since they
prevent proper testing of future patches on those platforms.  Hopefully
we'll be able to figure out the cause of the underruns quickly and
remerge an improved version of this patch to fix the regression.

Cc: Daniel Vetter <daniel@ffwll.ch>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=93640
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Daniel Vetter <daniel@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1453232584-8543-1-git-send-email-matthew.d.roper@intel.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-20 10:07:22 +01:00
Jani Nikula 18afd443f7 drm/i915: add DOC: headline to RC6 kernel-doc
Without the DOC:, kernel-doc confuses the documentation block for
something else.

Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453101588-18008-3-git-send-email-jani.nikula@intel.com
2016-01-20 10:22:26 +02:00
Jani Nikula e282891472 drm/i915: turn some bogus kernel-doc comments to normal comments
Apparently accidental or misplaced /** kernel-doc comments, confusing
the tool. Turn them to normal comments.

Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453101588-18008-2-git-send-email-jani.nikula@intel.com
2016-01-20 10:22:08 +02:00
Jani Nikula 38e5cced01 drm/i915/sdvo: revert bogus kernel-doc comments to normal comments
The comments were never proper kernel-doc, but with SDVO it's not worth
the trouble to make them kernel-doc. Just turn them into normal
comments.

Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453101588-18008-1-git-send-email-jani.nikula@intel.com
2016-01-20 10:21:34 +02:00
John Keeping c9ad1d9946 drm/rockchip: explain why we can't wait_for_vblanks
Signed-off-by: John Keeping <john@metanate.com>
2016-01-20 08:56:06 +08:00
John Keeping f2227f4697 drm/rockchip: don't wait for vblank if fb hasn't changed
As commented in drm_atomic_helper_wait_for_vblanks(), userspace relies
on cursor ioctls being unsynced.  Converting the rockchip driver to
atomic has significantly impacted cursor performance by making every
cursor update wait for vblank.

By skipping the vblank sync when the framebuffer has not changed (as is
done in drm_atomic_helper_wait_for_vblanks()) we can avoid this for the
common case of moving the cursor and only need to delay the cursor ioctl
when the cursor icon changes.

We cannot add the check on legacy_cursor_update since that results in
the cursor bo being unreferenced while the hardware may still be reading
it.  Fully supporting unsynced cursor updates is left for the future
when the atomic helper framework supports async updates.

Signed-off-by: John Keeping <john@metanate.com>
Tested-by: Heiko Stuebner <heiko@sntech.de>
2016-01-20 08:55:56 +08:00
John Keeping c240906d36 drm/atomic-helper: Export framebuffer_changed()
The Rockchip driver cannot use drm_atomic_helper_wait_for_vblanks()
because it has hardware counters for neither vblanks nor scanlines.

In order to simplify re-implementing the functionality for this driver,
export the framebuffer_changed() helper so it can be reused.

Signed-off-by: John Keeping <john@metanate.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-20 08:55:43 +08:00
Eric Anholt 8483d152db drm/vc4: Remove broken attempt at GPU reset using genpd.
I've tested and confirmed that it doesn't actually work.  We'll need
to sort out how to do this properly later, but for now just remove it
since it also caused build breakage due to using CONFIG_PM_SLEEP
functions without our Kconfig depending on PM_SLEEP.

Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
2016-01-19 13:16:31 -08:00
Arun Siluvery f3272e7a74 drm/i915/gen9: Correct max save/restore register count during gpu reset with GuC
In GuC submission mode, driver has to provide a list of registers to be
save/restored during gpu reset, make the max no. of registers value consistent
with that of the value defined in FW. If they are not in sync then register
save/restore during gpu reset won't work as expected.

Cc: Alex Dai <yu.dai@intel.com>
Cc: Dave Gordon <david.s.gordon@intel.com>
Signed-off-by: Arun Siluvery <arun.siluvery@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453132776-22229-1-git-send-email-arun.siluvery@linux.intel.com
Reviewed-by: Alex Dai <yu.dai@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-19 20:37:55 +01:00
Jordan Lazare 3466904d38 drm/amdgpu: Allow the driver to load if amdgpu.powerplay=1 on asics without powerplay support
Avoid setting pp_enabled if there is no powerplay implementation.

Signed-off-by: Jordan Lazare <Jordan.Lazare@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-01-19 12:42:30 -05:00
Michel Dänzer 9571e1d840 drm/amdgpu: Use drm_calloc_large for VM page_tables array
It can be big, depending on the VM address space size, which is tunable
via the vm_size module parameter.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=93721
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
2016-01-19 12:25:09 -05:00
Chris Wilson cbfc2d26ac drm/i915: Demote user facing DMC firmware load failure message
This is an expected error given the lack of the firmware so emit it at
KERN_NOTICE and not KERN_ERROR. Also include the firmware URL in the
user facing message so that the user can investigate and fix the issue
on their own, and also explain the consequence in plain language.

The complete failure message, including the first line from the firmware
loader, becomes

i915 0000:00:02.0: Direct firmware load for i915/skl_dmc_ver1.bin failed with error -2
i915 0000:00:02.0: Failed to load DMC firmware [https://01.org/linuxgraphics/intel-linux-graphics-firmwares], disabling runtime power management.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Damien Lespiau <damien.lespiau@intel.com>
Cc: Imre Deak <imre.deak@intel.com>
Cc: Sunil Kamath <sunil.kamath@intel.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Animesh Manna <animesh.manna@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1452706695-13518-1-git-send-email-chris@chris-wilson.co.uk
Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-19 11:11:58 +01:00
Marek Szyprowski 25aaa3a1e5 drm: initialize default rotation value to DRM_ROTATE_0
When no console framebuffer is enabled, the default plane state is
defined by plane reset function. If driver uses generic helper, then
rotation property is set to zero. This is not a valid value for that
enum. This patch sets default rotation value to DRM_ROTATE_0.

Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453192008-13283-1-git-send-email-m.szyprowski@samsung.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-19 09:42:01 +01:00
Linus Torvalds a200dcb346 virtio: barrier rework+fixes
This adds a new kind of barrier, and reworks virtio and xen
 to use it.
 Plus some fixes here and there.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull virtio barrier rework+fixes from Michael Tsirkin:
 "This adds a new kind of barrier, and reworks virtio and xen to use it.

  Plus some fixes here and there"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (44 commits)
  checkpatch: add virt barriers
  checkpatch: check for __smp outside barrier.h
  checkpatch.pl: add missing memory barriers
  virtio: make find_vqs() checkpatch.pl-friendly
  virtio_balloon: fix race between migration and ballooning
  virtio_balloon: fix race by fill and leak
  s390: more efficient smp barriers
  s390: use generic memory barriers
  xen/events: use virt_xxx barriers
  xen/io: use virt_xxx barriers
  xenbus: use virt_xxx barriers
  virtio_ring: use virt_store_mb
  sh: move xchg_cmpxchg to a header by itself
  sh: support 1 and 2 byte xchg
  virtio_ring: update weak barriers to use virt_xxx
  Revert "virtio_ring: Update weak barriers to use dma_wmb/rmb"
  asm-generic: implement virt_xxx memory barriers
  x86: define __smp_xxx
  xtensa: define __smp_xxx
  tile: define __smp_xxx
  ...
2016-01-18 16:44:24 -08:00
Linus Torvalds d43fb9f3c5 fbdev changes for 4.5
* pxafb: device-tree support
 * An unsafe kernel parameter 'lockless_register_fb' for debugging problems
   happening while inside the console lock
 * Small miscellaneous fixes & cleanups
 * omapdss: add writeback support functions
 * Separation of omapfb and omapdrm (see below)
 
 About the separation of omapfb and omapdrm, see
 http://permalink.gmane.org/gmane.comp.video.dri.devel/143151 for longer story.
 
 The short version:
 
 omapfb and omapdrm have shared low level drivers (omapdss and panel drivers),
 making further development of omapdrm difficult. After these patches omapfb and
 omapdrm have their own versions of the drivers, which are more or less
 direct copies for now but will diverge soon.
 
 This also means that omapfb (everything under drivers/video/fbdev/omap2/) is
 now in maintenance mode, and all new development will be done for omapdrm
 (drivers/gpu/drm/omapdrm/).
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Merge tag 'fbdev-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux

Pull fbdev updates from Tomi Valkeinen:
 "Summary:

   - pxafb: device-tree support
   - An unsafe kernel parameter 'lockless_register_fb' for debugging
     problems happening while inside the console lock
   - Small miscellaneous fixes & cleanups
   - omapdss: add writeback support functions
   - Separation of omapfb and omapdrm (see below)

  About the separation of omapfb and omapdrm, see

    http://permalink.gmane.org/gmane.comp.video.dri.devel/143151

  for longer story.  The short version:

  omapfb and omapdrm have shared low level drivers (omapdss and panel
  drivers), making further development of omapdrm difficult.  After
  these patches omapfb and omapdrm have their own versions of the
  drivers, which are more or less direct copies for now but will diverge
  soon.

  This also means that omapfb (everything under drivers/video/fbdev/omap2/)
  is now in maintenance mode, and all new development will be done for
  omapdrm (drivers/gpu/drm/omapdrm/)"

* tag 'fbdev-4.5' of git://git.kernel.org/pub/scm/linux/kernel/git/tomba/linux: (49 commits)
  video: fbdev: pxafb: fix out of memory error path
  drm/omap: make omapdrm select OMAP2_DSS
  drm/omap: move omapdss & displays under omapdrm
  omapfb: move vrfb into omapfb
  omapfb: take omapfb's private omapdss into use
  omapfb/displays: change CONFIG_DISPLAY_* to CONFIG_FB_OMAP2_*
  omapfb/dss: change CONFIG_OMAP* to CONFIG_FB_OMAP*
  omapdss: remove CONFIG_OMAP2_DSS_VENC from omapdss.h
  omapfb: copy omapdss & displays for omapfb
  omapfb: allow compilation only if DRM_OMAP is disabled
  fbdev: omap2: panel-dpi: simplify gpio setting
  fbdev: omap2: panel-dpi: in .disable first disable backlight then display
  OMAPDSS: DSS: fix a warning message
  video: omapdss: delete unneeded of_node_put
  OMAPDSS: DISPC: Remove boolean comparisons
  OMAPDSS: DSI: cleanup DSI_IRQ_ERROR_MASK define
  OMAPDSS: remove extra out == NULL checks
  OMAPDSS: change internal dispc functions to static
  OMAPDSS: make a two dss feat funcs internal to omapdss
  OMAPDSS: remove extra EXPORT_SYMBOLs
  ...
2016-01-18 11:58:31 -08:00
Geliang Tang aa45950bac drm/i915: use hlist_for_each_entry
Use hlist_for_each_entry() instead of hlist_for_each() to simplify
the code.

Signed-off-by: Geliang Tang <geliangtang@163.com>
Link: http://patchwork.freedesktop.org/patch/msgid/b80568b2990ebcc145229a132f045e852ac51ad6.1453126187.git.geliangtang@163.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-18 17:49:59 +01:00
Ville Syrjälä fa5a7970d3 drm/i915: skl_update_scaler() wants a rotation bitmask instead of bit number
Pass BIT(DRM_ROTATE_0) instead of DRM_ROTATE_0 to skl_update_scaler().
The former is a mask, the latter just the bit number.

Fortunately the only thing skl_update_scaler() does with the rotation
is check if it's 90/270 degrees or not, and so in this case it would
still do the right thing.

Cc: Chandra Konduru <chandra.konduru@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1444917718-28495-1-git-send-email-ville.syrjala@linux.intel.com
Fixes: 6156a45602 ("drm/i915: skylake primary plane scaling using shared scalers")
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
2016-01-18 16:08:14 +02:00
Ville Syrjälä 693bdc28a7 drm/i915: Don't reject primary plane windowing with color keying enabled on SKL+
On SKL+ plane scaling is mutually exclusive with color keying. The code
check for this, but during some refactoring the code got changed to
also reject primary plane windowing when color keying is used. There is
no such restriction in the hardware, so restore the original logic.

Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Fixes: 061e4b8d65 ("drm/i915: clean up atomic plane check functions, v2.")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1452883613-28549-1-git-send-email-ville.syrjala@linux.intel.com
Cc: stable@vger.kernel.org
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2016-01-18 16:07:43 +02:00
Alex Dai a9d8adad73 drm/i915/guc: Fix a memory leak where guc->execbuf_client is not freed
During driver unloading, the guc_client created for command submission
needs to be released to avoid memory leak.

The struct_mutex needs to be held before tearing down GuC.

v1: Move i915_guc_submission_disable out of i915_guc_submission_fini and
    take struct_mutex lock before release GuC client. (Dave Gordon)
v2: Add the locking for failure case in guc_fw_fetch. (Dave Gordon)
    Add i915_guc_submission_fini for failure case in intel_guc_ucode_load.

Signed-off-by: Alex Dai <yu.dai@intel.com>
Reviewed-by: Dave Gordon <david.s.gordon@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1452711710-4505-1-git-send-email-yu.dai@intel.com
2016-01-18 09:58:49 +00:00
Tvrtko Ursulin 82352e908a drm/i915: Cache LRC state page in the context
LRC lifetime is well defined so we can cache the page pointing
to the object backing store in the context in order to avoid
walking over the object SG page list from the interrupt context
without the big lock held.

v2: Also cache the mapping. (Chris Wilson)
v3: Unmap on the error path.
v4: No need to cache the page. (Chris Wilson)
v5: No need to dirty the page on unpin. (Chris Wilson)
v6: kmap() cannot fail and use kmap_to_page to simplify unpin.
    (Chris Wilson)

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Dave Gordon <david.s.gordon@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/1452877965-32042-1-git-send-email-tvrtko.ursulin@linux.intel.com
2016-01-18 09:58:44 +00:00
Tvrtko Ursulin 0eb973d31d drm/i915: Cache ringbuffer GTT VMA
Purpose is to avoid calling i915_gem_obj_ggtt_offset from the
interrupt context without the big lock held.

v2: Renamed gtt_start to gtt_offset. (Daniel Vetter)
v3: Cache the VMA instead of address. (Chris Wilson)

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/1452870629-13830-2-git-send-email-tvrtko.ursulin@linux.intel.com
2016-01-18 09:58:40 +00:00
Tvrtko Ursulin ca82580c9c drm/i915: Do not call API requiring struct_mutex where it is not available
LRC code was calling GEM API like i915_gem_obj_ggtt_offset from
places where the struct_mutex cannot be grabbed (irq handlers).

To avoid that this patch caches some interesting bits and values
in the engine and context structures.

Some usages are also removed where they are not needed like a
few asserts which are either impossible or have been checked
already during engine initialization.

Side benefit is also that interrupt handlers and command
submission stop evaluating invariant conditionals, like what
Gen we are running on, on every interrupt and every command
submitted.

This patch deals with logical ring context id and descriptors
while subsequent patches will deal with the remaining issues.

v2:
 * Cache the VMA instead of the address. (Chris Wilson)
 * Incorporate Dave Gordon's good comments and function name.

v3:
 * Extract ctx descriptor template to a function and group
   functions dealing with ctx descriptor & co together near
   top of the file. (Dave Gordon)

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Dave Gordon <david.s.gordon@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1452870629-13830-1-git-send-email-tvrtko.ursulin@linux.intel.com
2016-01-18 09:58:36 +00:00
Tvrtko Ursulin e0313db047 drm/i915: Only grab timestamps when needed
No need to call ktime_get_raw_ns twice per unlimited wait and can
also elimate a local variable.

v2: Added comment about silencing the compiler warning. (Daniel Vetter)

Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Dave Gordon <david.s.gordon@intel.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1452870672-13901-1-git-send-email-tvrtko.ursulin@linux.intel.com
2016-01-18 09:58:29 +00:00
Daniel Vetter 2da80b57c6 Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next-queued
Pull in Dave's drm-next pull request to have a clean base for 4.6.
Also, we need the various atomic state extensions Maarten recently
created.

Conflicts are just adjacent changes that all resolve to nothing in git
diff.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2016-01-18 08:18:16 +01:00
Liu Ying c6c5c7fa7f drm/atomic-helper: Remove redundant local var old_crtc_state in disable_outputs
One of the two local variables old_crtc_state is redundantly defined in the
function disable_outputs().  It has only a scope partway through the block
for_each_connector_in_state.  So, let's remove it and use the one which
has the scope within the function disable_outputs().

Signed-off-by: Liu Ying <gnuiyl@gmail.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1453088195-2564-1-git-send-email-gnuiyl@gmail.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-18 07:56:15 +01:00
Liu Ying 2deafc7e16 drm/crtc_helper/set_config: Remove redundant NULL pointer check on set->mode
We've done sanity NULL pointer check on set->mode at the beginning of
drm_crtc_helper_set_config() and bailed out if necessary, thus any later on
check is redundant.

Signed-off-by: Liu Ying <gnuiyl@gmail.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1452751210-19216-2-git-send-email-gnuiyl@gmail.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-18 07:51:12 +01:00
Liu Ying 07096bd3c9 drm/crtc_helper/set_config: Remove redundant handling when set->fb is NULL
We've done sanity NULL pointer check on set->fb at the beginning of
drm_crtc_helper_set_config() and bailed out if necessary, thus any later on
check or case handling is redundant.

Signed-off-by: Liu Ying <gnuiyl@gmail.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1452751210-19216-1-git-send-email-gnuiyl@gmail.com
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-18 07:51:10 +01:00
Dave Airlie c671e1e302 drm/vc4: fix warning in validate printf.
This just fixes a warning on 64-bit builds:

  drivers/gpu/drm/vc4/vc4_validate.c: In function ‘validate_gl_shader_rec’:
  drivers/gpu/drm/vc4/vc4_validate.c:864:12: warning: format ‘%d’ expects argument of type ‘int’, but argument 4 has type ‘size_t {aka long unsigned int}’ [-Wformat=]

Reported-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Dave Airlie <airlied@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-01-17 18:32:31 -08:00
Andrzej Hajda 484bb6c969 drm/rockchip/dsi: fix handling mipi_dsi_pixel_format_to_bpp result
The function can return negative value so it should be assigned to signed
variable.

The problem has been detected using patch
scripts/coccinelle/tests/unsigned_lesser_than_zero.cocci.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Reviewed-by: Chris Zhong <zyw@rock-chips.com>
2016-01-18 08:43:16 +08:00
John Keeping c7647f8681 drm/rockchip: vop: fix mask when updating interrupts
Commit dbb3d94 (drm/rockchip: vop: move interrupt registers into
vop_data) introduced new macros for updating the interrupt control
registers but these always use the mask from the register definition
without refining it for the particular bits that are being changed.

This means that whenever we enable/disable a particular interrupt we end
up disabling all of the others as a side effect.

Signed-off-by: John Keeping <john@metanate.com>
2016-01-18 08:42:09 +08:00
Mark Yao 63087aae5a drm/rockchip: cleanup unnecessary export symbol
Now rockchip_drm_vop.c is build into rockchipdrm.ko, so
no need to export following symbol anymore:
    rockchip_drm_dma_attach_device
    rockchip_drm_dma_detach_device
    rockchip_drm_dma_attach_device
    rockchip_drm_dma_detach_device
    rockchip_register_crtc_funcs
    rockchip_unregister_crtc_funcs
    rockchip_fb_get_gem_obj

Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
2016-01-18 08:42:09 +08:00
Mark Yao ce90d092bc drm/rockchip: Don't build rockchip_drm_vop as modules
rockchip_drm_vop's module init had moved to rockchip_vop_reg.c
so no need to build rockchip_drm_vop.ko

Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
2016-01-18 08:42:08 +08:00
Linus Torvalds 984065055e Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux
Pull drm updates from Dave Airlie:
 "This is the main drm pull request for 4.5.  I don't think I've missed
  anything too major, I'm mostly back at work now but I'll probably get
  some sleep in 5 years time.

  Summary:

  New drivers:
   - etnaviv:

     GPU driver for the 3D core on the Vivante core used in numerous
     ARM boards.

  Highlights:

  Core:
   - Atomic suspend/resume helpers
   - Move the headers to using userspace friendlier types.
   - Documentation updates
   - Lots of struct_mutex removal.
   - Bunch of DP MST fixes from AMD.

  Panel:
   - More DSI helpers
   - Support for some new basic panels

  i915:
   - Basic Kabylake support
   - DP link training and detect code refactoring
   - fbc/psr fixes
   - FIFO underrun fixes
   - SDE interrupt handling fixes
   - dma-buf/fence support in pageflip path.
   - GPU side for MST audio support

  radeon/amdgpu:
   - Drop UMS support
   - GPUVM/Scheduler optimisations
   - Initial Powerplay support for Tonga/Fiji/CZ/ST
   - ACP audio prerequisites

  nouveau:
   - GK20a instmem improvements
   - PCIE link speed change support

  msm:
   - DSI support for msm8960/apq8064

  tegra:
   - Host1X support for Tegra210 SoC

  vc4:
   - 3D acceleration support

  armada:
   - Get rid of struct mutex

  tda998x:
   - Atomic modesetting support
   - TMDS clock limitations

  omapdrm:
   - Atomic modesetting support
   - improved TILER performance

  rockchip:
   - RK3036 VOP support
   - Atomic modesetting support
   - Synopsys DW MIPI DSI support

  exynos:
   - Runtime PM support
   - of_graph binding for DP panels
   - Cleanup of IPP code
   - Configurable plane support
   - Kernel panic fixes at release time"

* 'drm-next' of git://people.freedesktop.org/~airlied/linux: (711 commits)
  drm/fb_cma_helper: Remove implicit call to disable_unused_functions
  drm/amdgpu: add missing irq.h include
  drm/vmwgfx: Fix a width / pitch mismatch on framebuffer updates
  drm/vmwgfx: Fix an incorrect lock check
  drm: nouveau: fix nouveau_debugfs_init prototype
  drm/nouveau/pci: fix check in nvkm_pcie_set_link
  drm/amdgpu: validate duplicates first
  drm/amdgpu: move VM page tables to the LRU end on CS v2
  drm/ttm: add ttm_bo_move_to_lru_tail function v2
  drm/ttm: fix adding foreign BOs to the swap LRU
  drm/ttm: fix adding foreign BOs to the LRU during init v2
  drm/radeon: use kobj_to_dev()
  drm/amdgpu: use kobj_to_dev()
  drm/amdgpu/cz: force vce clocks when sclks are forced
  drm/amdgpu/cz: force uvd clocks when sclks are forced
  drm/amdgpu/cz: add code to enable forcing VCE clocks
  drm/amdgpu/cz: add code to enable forcing UVD clocks
  drm/amdgpu: fix lost sync_to if scheduler is enabled.
  drm/amd/powerplay: fix static checker warning for return meaningless value.
  drm/sysfs: use kobj_to_dev()
  ...
2016-01-17 13:40:25 -08:00
Dave Airlie 1df59b8497 Merge tag 'drm-intel-next-fixes-2016-01-14' of git://anongit.freedesktop.org/drm-intel into drm-next
misc i915 fixes all over the place.

* tag 'drm-intel-next-fixes-2016-01-14' of git://anongit.freedesktop.org/drm-intel:
  drm/i915/gen9: Set PIN_ZONE_4G end to 4GB - 1 page
  drm/i915: Widen return value for reservation_object_wait_timeout_rcu to long.
  drm/i915: intel_hpd_init(): Fix suspend/resume reprobing
  drm/i915: shut up gen8+ SDE irq dmesg noise, again
  drm/i915: Restore inhibiting the load of the default context
  drm/i915: Tune down rpm wakelock debug checks
  drm/i915: Avoid writing relocs with addresses in non-canonical form
  drm/i915: Move Braswell stop_machine GGTT insertion workaround
2016-01-18 07:02:19 +10:00
Dave Airlie 28f03607bb Merge tag 'topic/drm-misc-2016-01-17' of git://anongit.freedesktop.org/drm-intel into drm-next
Since your main drm-next pull isn't out of the door yet I figured I might
as well flush out drm-misc instead of delaying for 4.6. It's really just
random stuff all over, biggest thing probably connector_mask tracking from
Maarten.

* tag 'topic/drm-misc-2016-01-17' of git://anongit.freedesktop.org/drm-intel: (24 commits)
  drm/fb_cma_helper: Remove implicit call to disable_unused_functions
  drm/sysfs: use kobj_to_dev()
  drm/i915: Init power domains early in driver load
  drm: Do not set connector->encoder in drivers
  apple-gmux: Add initial documentation
  drm: move MODULE_PARM_DESC to other file
  drm/edid: index CEA/HDMI mode tables using the VIC
  drm/atomic: Remove drm_atomic_connectors_for_crtc.
  drm/i915: Update connector_mask during readout, v2.
  drm: Remove opencoded drm_gem_object_release_handle()
  drm: Do not set outparam on error during GEM handle allocation
  drm/docs: more leftovers from the big vtable documentation pile
  drm/atomic-helper: Reject legacy flips on a disabled pipe
  drm/atomic: add connector mask to drm_crtc_state.
  drm/tegra: Use __drm_atomic_helper_reset_connector for subclassing connector state, v2.
  drm/atomic: Add __drm_atomic_helper_connector_reset, v2.
  drm/i915: Set connector_state->connector using the helper.
  drm: Use a normal idr allocation for the obj->name
  drm: Only bump object-reference count when adding first handle
  drm: Balance error path for GEM handle allocation
  ...
2016-01-18 07:01:16 +10:00
Linus Torvalds 0cbeafb245 Merge branch 'akpm' (patches from Andrew)
Merge second patch-bomb from Andrew Morton:

 - more MM stuff:

    - Kirill's page-flags rework

    - Kirill's now-allegedly-fixed THP rework

    - MADV_FREE implementation

    - DAX feature work (msync/fsync).  This isn't quite complete but DAX
      is new and it's good enough and the guys have a handle on what
      needs to be done - I expect this to be wrapped in the next week or
      two.

  - some vsprintf maintenance work

  - various other misc bits

* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (145 commits)
  printk: change recursion_bug type to bool
  lib/vsprintf: factor out %pN[F] handler as netdev_bits()
  lib/vsprintf: refactor duplicate code to special_hex_number()
  printk-formats.txt: remove unimplemented %pT
  printk: help pr_debug and pr_devel to optimize out arguments
  lib/test_printf.c: test dentry printing
  lib/test_printf.c: add test for large bitmaps
  lib/test_printf.c: account for kvasprintf tests
  lib/test_printf.c: add a few number() tests
  lib/test_printf.c: test precision quirks
  lib/test_printf.c: check for out-of-bound writes
  lib/test_printf.c: don't BUG
  lib/kasprintf.c: add sanity check to kvasprintf
  lib/vsprintf.c: warn about too large precisions and field widths
  lib/vsprintf.c: help gcc make number() smaller
  lib/vsprintf.c: expand field_width to 24 bits
  lib/vsprintf.c: eliminate potential race in string()
  lib/vsprintf.c: move string() below widen_string()
  lib/vsprintf.c: pull out padding code from dentry_name()
  printk: do cond_resched() between lines while outputting to consoles
  ...
2016-01-17 12:58:52 -08:00
Linus Torvalds a016af2e70 sound updates for 4.5-rc1
We've had quite busy weeks in this cycle.  Looking at ALSA core, the
 significant changes are a few fixes wrt timer and sequencer ioctls
 that have been revealed by fuzzer recently.  Other than that, ASoC
 core got a few updates about DAI link handling, but these are rather
 straightforward refactoring.
 
 In drivers scene, ASoC received quite lots of new drivers in addition
 to bunch of updates for still ongoing Intel Skylake support and
 topology API.  HD-audio gained a new HDMI/DP hotplug notification via
 component.  FireWire got a pile of code refactoring/updates with
 SCS.1x driver integration.
 
 More highlights are shown below.
 
 [NOTE: this contains also many commits for DRM.  This is due to the
  pull of drm stable branch into sound tree, as the base of i915 audio
  component work for HD-audio.  The highlights below don't contain
  these DRM changes, as these are supposed to be pulled via drm tree in
  anyway sooner or later.]
 
 Core
  - Handful fixes to harden ALSA timer and sequencer ioctls against
    races reported by syzkaller fuzzer
  - Irq description string can be unique to each card; only for
    HD-audio for now
 
 ASoC
  - Conversion of the array of DAI links to a list for supporting
    dynamically adding and removing DAI links
  - Topology API enhancements to make everything more component based
    and being able to specify PCM links via topology
  - Some more fixes for the topology code, though it is still not final
    and ready for enabling in production; we really need to get to the
    point where that can be done
  - A pile of changes for Intel SkyLake drivers which hopefully deliver
    some useful initial functionality for systems with this chipset,
    though there is more work still to come
  - Lots of new features and cleanups for the Renesas drivers
  - ANC support for WM5110
  - New drivers: Imagination Technologies IPs, Atmel class D speaker,
    Cirrus CS47L24 and WM1831, Dialog DA7128, Realtek RT5659 and
    RT56156, Rockchip RK3036, TI PC3168A, and AMD ACP
  - Rename PCM1792a driver to be generic pcm179x
 
 HD-Audio
  - Use audio component for i915 HDMI/DP hotplug handling
  - On-demand binding with i915 driver
  - bdl_pos_adj parameter adjustment for Baytrail controllers
  - Enable power_save_node for CX20722; this shouldn't lead to
    regression, hopefully
  - Kabylake HDMI/DP codec support
  - Quirks for Lenovo E50-80, Dell Latitude E-series, and other Dell
    machines
  - A few code refactoring
 
 FireWire
  - Lots of code cleanup and refactoring
  - Integrate the support of SCS.1x devices into snd-oxfw driver;
    snd-scs1x driver is obsoleted
 
 USB-audio
  - Fix possible NULL dereference at disconnection
  - A regression fix for Native Instruments devices
 
 Misc
  - A few code cleanups of fm801 driver
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Merge tag 'sound-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

Pull sound updates from Takashi Iwai:
 "We've had quite busy weeks in this cycle.  Looking at ALSA core, the
  significant changes are a few fixes wrt timer and sequencer ioctls
  that have been revealed by fuzzer recently.  Other than that, ASoC
  core got a few updates about DAI link handling, but these are rather
  straightforward refactoring.

  In drivers scene, ASoC received quite lots of new drivers in addition
  to bunch of updates for still ongoing Intel Skylake support and
  topology API.  HD-audio gained a new HDMI/DP hotplug notification via
  component.  FireWire got a pile of code refactoring/updates with
  SCS.1x driver integration.

  More highlights are shown below.

  [ NOTE: this contains also many commits for DRM.  This is due to the
    pull of drm stable branch into sound tree, as the base of i915 audio
    component work for HD-audio.  The highlights below don't contain
    these DRM changes, as these are supposed to be pulled via drm tree
    in anyway sooner or later.  ]

  Core:
   - Handful fixes to harden ALSA timer and sequencer ioctls against
     races reported by syzkaller fuzzer
   - Irq description string can be unique to each card; only for
     HD-audio for now

  ASoC:
   - Conversion of the array of DAI links to a list for supporting
     dynamically adding and removing DAI links
   - Topology API enhancements to make everything more component based
     and being able to specify PCM links via topology
   - Some more fixes for the topology code, though it is still not final
     and ready for enabling in production; we really need to get to the
     point where that can be done
   - A pile of changes for Intel SkyLake drivers which hopefully deliver
     some useful initial functionality for systems with this chipset,
     though there is more work still to come
   - Lots of new features and cleanups for the Renesas drivers
   - ANC support for WM5110
   - New drivers: Imagination Technologies IPs, Atmel class D speaker,
     Cirrus CS47L24 and WM1831, Dialog DA7128, Realtek RT5659 and
     RT56156, Rockchip RK3036, TI PC3168A, and AMD ACP
   - Rename PCM1792a driver to be generic pcm179x

  HD-Audio:
   - Use audio component for i915 HDMI/DP hotplug handling
   - On-demand binding with i915 driver
   - bdl_pos_adj parameter adjustment for Baytrail controllers
   - Enable power_save_node for CX20722; this shouldn't lead to
     regression, hopefully
   - Kabylake HDMI/DP codec support
   - Quirks for Lenovo E50-80, Dell Latitude E-series, and other Dell
     machines
   - A few code refactoring

  FireWire:
   - Lots of code cleanup and refactoring
   - Integrate the support of SCS.1x devices into snd-oxfw driver;
     snd-scs1x driver is obsoleted

  USB-audio:
   - Fix possible NULL dereference at disconnection
   - A regression fix for Native Instruments devices

  Misc:
   - A few code cleanups of fm801 driver"

* tag 'sound-4.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (722 commits)
  ALSA: timer: Code cleanup
  ALSA: timer: Harden slave timer list handling
  ALSA: hda - Add fixup for Dell Latitidue E6540
  ALSA: timer: Fix race among timer ioctls
  ALSA: hda - add codec support for Kabylake display audio codec
  ALSA: timer: Fix double unlink of active_list
  ALSA: usb-audio: Fix mixer ctl regression of Native Instrument devices
  ALSA: hda - fix the headset mic detection problem for a Dell laptop
  ALSA: hda - Fix white noise on Dell Latitude E5550
  ALSA: hda_intel: add card number to irq description
  ALSA: seq: Fix race at timer setup and close
  ALSA: seq: Fix missing NULL check at remove_events ioctl
  ALSA: usb-audio: Avoid calling usb_autopm_put_interface() at disconnect
  ASoC: hdac_hdmi: remove unused hdac_hdmi_query_pin_connlist
  ASoC: AMD: Add missing include file
  ALSA: hda - Fixup inverted internal mic for Lenovo E50-80
  ALSA: usb: Add native DSD support for Oppo HA-1
  ASoC: Make aux_dev more like a generic component
  ASoC: bcm2835: cleanup includes by ordering them alphabetically
  ASoC: AMD: Manage ACP 2.x SRAM banks power
  ...
2016-01-17 12:05:31 -08:00
Dan Williams 01c8f1c44b mm, dax, gpu: convert vm_insert_mixed to pfn_t
Convert the raw unsigned long 'pfn' argument to pfn_t for the purpose of
evaluating the PFN_MAP and PFN_DEV flags.  When both are set it triggers
_PAGE_DEVMAP to be set in the resulting pte.

There are no functional changes to the gpu drivers as a result of this
conversion.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Cc: Dave Hansen <dave@sr71.net>
Cc: David Airlie <airlied@linux.ie>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2016-01-15 17:56:32 -08:00
Linus Torvalds c7b6c5fe67 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
Pull vfs regression fix from Al Viro:
 "Fix for braino introduced in vfs.git#work.misc"

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  amdkfd: Copy from the proper user command pointer
2016-01-15 12:41:32 -08:00
Borislav Petkov 39c01bf933 amdkfd: Copy from the proper user command pointer
8f1d57c172 ("amdkfd: don't open-code memdup_user()") mistakenly uses
an uninitialized local pointer, gcc complains:

  drivers/gpu/drm/amd/amdkfd/kfd_chardev.c: In function ‘kfd_ioctl_dbg_address_watch’:
  drivers/gpu/drm/amd/amdkfd/kfd_chardev.c:562:12: warning: ‘args_buff’ may be used uninitialized in this function [-Wmaybe-uninitialized]
    args_buff = memdup_user(args_buff,
                ^

Fix it.

Signed-off-by: Borislav Petkov <bp@suse.de>
Cc: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
2016-01-15 15:14:17 -05:00
Ville Syrjälä 2d7f3bdb2c drm/i915: Pass the dma_addr_t array as const to rotate_pages()
rotate_pages() doesn't modify the passed in dma addresses, so make
them const.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1452777736-4909-4-git-send-email-ville.syrjala@linux.intel.com
2016-01-15 21:04:27 +02:00
Ville Syrjälä b5e16987a0 drm/i915: Set i915_ggtt_view_normal type explicitly
Just for clarity set the type for i915_ggtt_view_normal explicitly.

While at it fix the indentation fail for i915_ggtt_view_rotated.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1452777736-4909-3-git-send-email-ville.syrjala@linux.intel.com
2016-01-15 21:04:16 +02:00
Ville Syrjälä 0b05e1e0c9 drm/i915: Don't leak framebuffer_references if drm_framebuffer_init() fails
Don't increment obj->framebuffer_references until we know we actually
managed to create the framebuffer.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1452777736-4909-2-git-send-email-ville.syrjala@linux.intel.com
2016-01-15 21:04:07 +02:00
Alex Deucher 7776a69386 drm/amdgpu: Add some tweaks to gfx 8 soft reset
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Ken Wang <Qingqing.Wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-01-15 12:43:22 -05:00
Alex Deucher e160e4db83 drm/amdgpu: fix tonga smu resume
Need to make sure smu buffers are pinned on resume.  This
matches what Fiji does.

Cc: stable@vger.kernel.org
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Ken Wang <Qingqing.Wang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-01-15 12:43:11 -05:00
Maxime Ripard 4314e19ef4 drm/fb_cma_helper: Remove implicit call to disable_unused_functions
The drm_fbdev_cma_init function always calls the
drm_helper_disable_unused_functions. Since it's part of the usual probe
process, all the drivers using that helper will end up having their encoder
and CRTC disable functions called at probe if their device has not been
reported as enabled.

This could be fixed by reading out from the registers the current state of
the device if it is enabled, but even that will not handle the case where
the device is actually disabled.

Moreover, the drivers using the atomic modesetting expect that their enable
and disable callback to be called when the device is already enabled or
disabled (respectively).

We can however fix this issue by moving the call to
drm_helper_disable_unused_functions out of drm_fbdev_cma_init and make the
drivers needing it (all the drivers calling drm_fbdev_cma_init and not
using the atomic modesetting) explicitly call it.

Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1452785109-6172-14-git-send-email-maxime.ripard@free-electrons.com
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-01-15 11:16:15 +01:00
Jani Nikula 013dd9e038 drm/i915/dp: fall back to 18 bpp when sink capability is unknown
Per DP spec, the source device should fall back to 18 bpp, VESA range
RGB when the sink capability is unknown. Fix the color depth
clamping. 18 bpp color depth should ensure full color range in automatic
mode.

The clamping has been HDMI specific since its introduction in

commit 996a2239f9
Author: Daniel Vetter <daniel.vetter@ffwll.ch>
Date:   Fri Apr 19 11:24:34 2013 +0200

    drm/i915: Disable high-bpc on pre-1.4 EDID screens

Cc: stable@vger.kernel.org
Reported-and-tested-by: Dihan Wickremasuriya <nayomal@gmail.com>
Bugzilla: https://bugzilla.kernel.org/show_bug.cgi?id=105331
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1452695720-7076-1-git-send-email-jani.nikula@intel.com
2016-01-15 11:41:19 +02:00
Jani Nikula 6765bd6dd2 drm/i915/bios: Fix the sequence size calculations for MIPI seq v3
Two errors in a single line. The size was read from the wrong offset,
and the end index didn't take the five bytes for sequence byte and size
of sequence into account. Fix it all, and break up the calculations a
bit to make it clearer.

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reported-and-tested-by: Mika Kahola <mika.kahola@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Fixes: 2a33d93486 ("drm/i915/bios: add support for MIPI sequence block v3")
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1452784327-27258-1-git-send-email-jani.nikula@intel.com
2016-01-15 11:38:11 +02:00
Francisco Jerez 965fd602a6 drm/i915: Make sure DC writes are coherent on flush.
We need to set the DC FLUSH PIPE_CONTROL bit on Gen7+ to guarantee
that writes performed via the HDC are visible in memory.  Fixes an
intermittent failure in a Piglit test that writes to a BO from a
shader using GL atomic counters (implemented as HDC untyped atomics)
and then expects the memory to read back the same value after mapping
it on the CPU.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=91298
Tested-by: Mark Janes <mark.a.janes@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Francisco Jerez <currojerez@riseup.net>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1452740379-3194-1-git-send-email-currojerez@riseup.net
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2016-01-15 11:33:52 +02:00
Ville Syrjälä d890565c44 drm/i915: Use the active wm config for merging on ILK-BDW
ilk_program_watermarks() is supposed to merge the active watermarks from
all pipes. Thus we need to use the active config too instead of some
precomputed stuff.

Fixes: aa36313686 ("drm/i915: Calculate watermark configuration during atomic check (v2)")
Cc: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1452776015-22076-2-git-send-email-ville.syrjala@linux.intel.com
2016-01-14 18:34:37 -08:00
Ville Syrjälä f1ecaf8f9c drm/i915: Start WM computation from scratch on ILK-BDW
ilk_compute_pipe_wm() assumes as zeroed pipe_wm structure when it
starts. We used to pass such a zeroed struct in, but this got broken
when the pipe_wm structure got embedded in the crtc state.

To fix it without too much fuzz, we need to resort to a memset().

Fixes: 4e0963c766 ("drm/i915: Calculate pipe watermarks into CRTC state (v3)")
Cc: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1452776015-22076-1-git-send-email-ville.syrjala@linux.intel.com
2016-01-14 18:33:25 -08:00
Linus Torvalds 7d1fc01afc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial
Pull trivial tree updates from Jiri Kosina.

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial:
  floppy: make local variable non-static
  exynos: fixes an incorrect header guard
  dt-bindings: fixes some incorrect header guards
  cpufreq-dt: correct dead link in documentation
  cpufreq: ARM big LITTLE: correct dead link in documentation
  treewide: Fix typos in printk
  Documentation: filesystem: Fix typo in fs/eventfd.c
  fs/super.c: use && instead of & for warn_on condition
  Documentation: fix sysfs-ptp
  lib: scatterlist: fix Kconfig description
2016-01-14 17:04:19 -08:00
Jani Nikula 87ad321287 drm/i915: add onoff utility function
Add a common function to return "on" or "off" string based on the
argument, and drop the local versions of it.

This is the onoff version of

commit 42a8ca4cb4
Author: Jani Nikula <jani.nikula@intel.com>
Date:   Thu Aug 27 16:23:30 2015 +0300

    drm/i915: add yesno utility function

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1452768814-29787-1-git-send-email-jani.nikula@intel.com
2016-01-14 15:00:12 +02:00
Dave Airlie e9c5e7402d drm/amdgpu: add missing irq.h include
this fixes the build on arm.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-01-14 08:07:55 +10:00
Dave Airlie d6f7a18c8a Merge branch 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next
This 2nd pull request includes the following,
   - add configurable plane support and relevant cleanups.
   - fixup kernel panic issue at drm releasing.
   - remove unnecessary codes.

   This has been delayed to resolve a critical issue - which incurrs
   a kernel panic when driver is released - and review it.

* 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
  drm/exynos: fix kernel panic issue at drm releasing
  drm/exynos: crtc: do not wait for the scanout completion
  drm/exynos: mixer: properly update all planes on the same vblank event
  drm/exynos: crtc: rework atomic_{begin,flush}
  drm/exynos: mixer: unify a check for video-processor window
  drm/exynos: mixer: also allow ARGB1555 and ARGB4444
  drm/exynos: mixer: refactor layer setup
  drm/exynos: mixer: remove all static blending setup
  drm/exynos: mixer: set window priority based on zpos
  drm/exynos: make zpos property configurable
  drm/exynos: rename zpos to index
2016-01-14 07:59:21 +10:00
Dave Airlie 06249e6932 Merge branch 'drm-etnaviv-fixes' of git://git.pengutronix.de/git/lst/linux into drm-next
etnaviv fixes.

* 'drm-etnaviv-fixes' of git://git.pengutronix.de/git/lst/linux:
  drm/etnaviv: fix workaround for GC500
  drm/etnaviv: unlock on error in etnaviv_gem_get_iova()
2016-01-14 07:58:06 +10:00
Dave Airlie c7753e905b Merge branch 'drm-rockchip-next-2016-01-06' of https://github.com/markyzq/kernel-drm-rockchip into drm-next
new rockchip bits.

* 'drm-rockchip-next-2016-01-06' of https://github.com/markyzq/kernel-drm-rockchip:
  drm: rockchip: Support Synopsys DW MIPI DSI
  Documentation: dt-bindings: Add bindings for rk3288 DW MIPI DSI driver
  drm/rockchip: return a true clock rate to adjusted_mode
2016-01-14 07:57:24 +10:00
Thomas Hellstrom a50e2bf5a0 drm/vmwgfx: Fix a width / pitch mismatch on framebuffer updates
When the framebuffer is a vmwgfx dma buffer and a proxy surface is
created, the vmw_kms_update_proxy() function requires that the proxy
surface width and the framebuffer pitch are compatible, otherwise
display corruption occurs as seen in gnome-shell/native with software
3D. Since the framebuffer pitch is determined by user-space, allocate
a proxy surface the width of which is based on the framebuffer pitch
rather than on the framebuffer width.

Cc: <stable@vger.kernel.org>
Reported-by: Raphael Hertzog <buxy@kali.org>
Tested-by:  Mati Aharoni <muts@kali.org>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-01-14 07:56:46 +10:00
Thomas Hellstrom fb89ac5102 drm/vmwgfx: Fix an incorrect lock check
With CONFIG_SMP=n and CONFIG_DEBUG_SPINLOCK=y the vmwgfx kernel module
would unconditionally throw a bug when checking for a held spinlock
in the command buffer code. Fix this by using a lockdep check.

Cc: <stable@vger.kernel.org>
Reported-and-tested-by: Tetsuo Handa <penguin-kernel@i-love-sakura.ne.jp>
Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-01-14 07:56:44 +10:00
Arnd Bergmann 38b1751913 drm: nouveau: fix nouveau_debugfs_init prototype
The new debugfs initialization code fails to build when CONFIG_DEBUG_FS
is disabled:

In file included from /git/arm-soc/drivers/gpu/drm/nouveau/nouveau_drm.c:57:0:
drivers/gpu/drm/nouveau/nouveau_debugfs.h: In function 'nouveau_debugfs_init':
drivers/gpu/drm/nouveau/nouveau_debugfs.h:37:29: error: parameter name omitted
 nouveau_debugfs_init(struct nouveau_drm *)

This fixes the prototypes so we can build it again.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: b126a200e9 ("drm/nouveau/debugfs: we need a ctrl object for debugfs")
Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-01-14 07:56:41 +10:00
Karol Herbst 25c80507dd drm/nouveau/pci: fix check in nvkm_pcie_set_link
v2: remove unneeded pci check

Signed-off-by: Karol Herbst <nouveau@karolherbst.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
2016-01-14 07:56:37 +10:00
Dave Airlie 6cfd777584 Merge branch 'drm-next-4.5' of git://people.freedesktop.org/~agd5f/linux into drm-next
A few more misc things for radeon and amdgpu for 4.5:
- TTM fixes for imported buffers
- amdgpu fixes to avoid -ENOMEM in CS ioctl
- CZ UVD and VCE clock force options for debugging video issues
- A couple of ACP prerequisites
- Misc fixes

* 'drm-next-4.5' of git://people.freedesktop.org/~agd5f/linux:
  drm/amdgpu: validate duplicates first
  drm/amdgpu: move VM page tables to the LRU end on CS v2
  drm/ttm: add ttm_bo_move_to_lru_tail function v2
  drm/ttm: fix adding foreign BOs to the swap LRU
  drm/ttm: fix adding foreign BOs to the LRU during init v2
  drm/radeon: use kobj_to_dev()
  drm/amdgpu: use kobj_to_dev()
  drm/amdgpu/cz: force vce clocks when sclks are forced
  drm/amdgpu/cz: force uvd clocks when sclks are forced
  drm/amdgpu/cz: add code to enable forcing VCE clocks
  drm/amdgpu/cz: add code to enable forcing UVD clocks
  drm/amdgpu: fix lost sync_to if scheduler is enabled.
  drm/amd/powerplay: fix static checker warning for return meaningless value.
  drm/amdgpu: add irq domain support
  drm/amdgpu/cgs: add an interface to access PCI resources
2016-01-14 07:56:07 +10:00
Christian König d8e0cae645 drm/amdgpu: validate duplicates first
Most VM BOs end up in the duplicates list, validate it
first make -ENOMEM less likely.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Chunming Zhou <David1.Zhou@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-01-13 12:22:59 -05:00
Christian König eceb8a1562 drm/amdgpu: move VM page tables to the LRU end on CS v2
This makes it less likely to run into an ENOMEM because
VM page tables are evicted last.

v2: move the BOs in the LRU tail after validation

Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-01-13 12:22:17 -05:00
Christian König ab74961810 drm/ttm: add ttm_bo_move_to_lru_tail function v2
This allows the drivers to move a BO to the end of the LRU
without removing and adding it again.

v2: Make it more robust, handle pinned and swapable BOs as well.

Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-01-13 12:21:21 -05:00
Christian König ed704a43e8 drm/ttm: fix adding foreign BOs to the swap LRU
It doesn't make any sense to try to swap out imported BOs.

Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-01-13 12:19:52 -05:00
Christian König 33d48cf825 drm/ttm: fix adding foreign BOs to the LRU during init v2
If we import a BO with an external reservation object we don't
reserve/unreserve it. So we never add it to the LRU causing a possible
denial of service.

v2: fix typo in commit message

Reviewed-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-01-13 12:18:31 -05:00
Geliang Tang e3837b00b6 drm/radeon: use kobj_to_dev()
Use kobj_to_dev() instead of open-coding it.

Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-01-13 12:15:53 -05:00
Geliang Tang cc29ec874b drm/amdgpu: use kobj_to_dev()
Use kobj_to_dev() instead of open-coding it.

Signed-off-by: Geliang Tang <geliangtang@163.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-01-13 12:14:59 -05:00
Alex Deucher 403664bbf8 drm/amdgpu/cz: force vce clocks when sclks are forced
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-01-13 12:13:33 -05:00
Alex Deucher 5f57642672 drm/amdgpu/cz: force uvd clocks when sclks are forced
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-01-13 12:13:26 -05:00
Alex Deucher 044c0629b5 drm/amdgpu/cz: add code to enable forcing VCE clocks
VCE DPM works similarly to SCLK DPM.  Add a similar interface
for VCE for forcing the VCE clocks.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-01-13 12:12:43 -05:00
Alex Deucher d83b1e8132 drm/amdgpu/cz: add code to enable forcing UVD clocks
UVD DPM works similarly to SCLK DPM.  Add a similar interface
for UVD for forcing the UVD clocks.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2016-01-13 12:11:30 -05:00
Ville Syrjälä 603525d722 drm/i915: Refactor intel_surf_alignment()
Pull the code to determine the surface alignment for both linear and
tiled surfaces into a separate function intel_surf_alignment(). This
will be used not only for the vma alignment but actually aligning
the plane SURF once SKL+ starts using intel_compute_page_offset()
(since SKL+ needs >4K alignment for tiled surfaces too).

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1452625717-9713-8-git-send-email-ville.syrjala@linux.intel.com
2016-01-13 18:46:47 +02:00
Ville Syrjälä ce1e5c140c drm/i915: s/intel_gen4_compute_page_offset/intel_compute_tile_offset/
Since intel_gen4_compute_page_offset() can now handle tiling formats
all the way down to gen2, rename it to intel_compute_tile_offset().
Not that we actually use it on gen2/3 since there's no DSPSURF etc.
registers which would take a page aligned address.

v2: s/page/tile/ (Daniel)

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1452625717-9713-7-git-send-email-ville.syrjala@linux.intel.com
2016-01-13 18:46:44 +02:00
Ville Syrjälä d843310d14 drm/i915: Use intel_tile_{size,width,height}() in intel_gen4_compute_page_offset()
Make intel_gen4_compute_page_offset() ready for other tiling formats
besied X-tile by getting the tile dimensions through
intel_tile_{size,width,height}().

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1452625717-9713-6-git-send-email-ville.syrjala@linux.intel.com
2016-01-13 18:46:41 +02:00
Ville Syrjälä d9b3288ecf drm/i915: change intel_fill_fb_ggtt_view() to use the real tile size
Use the actual tile size as to compute stuff in
intel_fill_fb_ggtt_view() instead of assuming it's PAGE_SIZE. I suppose
it doesn't matter since we don't use the results on gen2 platforms
where the tile size is 2k.

v2: Update due to CbCr plane

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1452625717-9713-5-git-send-email-ville.syrjala@linux.intel.com
2016-01-13 18:46:36 +02:00
Ville Syrjälä 832be82f87 drm/i915: Redo intel_tile_height() as intel_tile_size() / intel_tile_width()
I find more usual to think about tile widths than heights, so changing
the intel_tile_height() to calculate the tile height as
tile_size/tile_width is easier than the opposite to the poor brain.

v2: Reorder arguments for consistency
    Constify dev_priv arguments

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1452625717-9713-4-git-send-email-ville.syrjala@linux.intel.com
2016-01-13 18:46:29 +02:00
Ville Syrjälä 7b49f94839 drm/i915: Factor out intel_tile_width()
Pull the tile width calculations from intel_fb_stride_alignment() into a
new function intel_tile_width().

Also take the opportunity to pass aroun dev_priv instead of dev to
intel_fb_stride_alignment().

v2: Reorder argumnents to be more consistent with other functions
    Change intel_fb_stride_alignment() to accept dev_priv instead of dev
v3: Deal with Y tilling (Daniel)

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1452625717-9713-3-git-send-email-ville.syrjala@linux.intel.com
2016-01-13 18:46:24 +02:00
Ville Syrjälä b5c653384f drm/i915: Pass modifier instead of tiling_mode to gen4_compute_page_offset()
In preparation for handling more than X tiling, pass the fb modifier to
gen4_compute_page_offset() instead of the obj->tiling_mode.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1452625717-9713-2-git-send-email-ville.syrjala@linux.intel.com
2016-01-13 18:46:17 +02:00