Commit Graph

33123 Commits

Author SHA1 Message Date
Chris Wilson
c0dcb203fb drm/i915: Restore context and pd for ringbuffer submission after reset
Following a reset, the context and page directory registers are lost.
However, the queue of requests that we resubmit after the reset may
depend upon them - the registers are restored from a context image, but
that restore may be inhibited and may simply be absent from the request
if it was in the middle of a sequence using the same context. If we
prime the CCID/PD registers with the first request in the queue (even
for the hung request), we prevent invalid memory access for the
following requests (and continually hung engines).

v2: Magic BIT(8), reserved for future use but still appears unused.
v3: Some commentary on handling innocent vs guilty requests
v4: Add a wait for PD_BASE fetch. The reload appears to be instant on my
Ivybridge, but this bit probably exists for a reason.

Fixes: 821ed7df6e ("drm/i915: Update reset path to fix incomplete requests")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170207152437.4252-1-chris@chris-wilson.co.uk
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
2017-02-07 21:34:58 +00:00
Arthur Heymans
6248017ae5 drm/i915: Get correct display clock on 945gm
This is according to Mobile Intel® 945 Express Chipset
Family datasheet.

Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Link: http://patchwork.freedesktop.org/patch/msgid/20170131235026.26003-1-arthur@aheymans.xyz
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
2017-02-07 19:46:00 +02:00
Chris Wilson
e0ec3ec698 drm/i915: Remove overzealous fence warn on runtime suspend
The goal of the WARN was to catch when we are still actively using the
fence as we go into the runtime suspend. However, the reg->pin_count is
too coarse as it does not distinguish between exclusive ownership of the
fence register from activity.

I've not improved on the WARN, nor have we captured this WARN in an
exact igt, but it is showing up regularly in the wild:

[ 1915.935332] WARNING: CPU: 1 PID: 10861 at drivers/gpu/drm/i915/i915_gem.c:2022 i915_gem_runtime_suspend+0x116/0x130 [i915]
[ 1915.935383] WARN_ON(reg->pin_count)[ 1915.935399] Modules linked in:
 snd_hda_intel i915 drm_kms_helper vgem netconsole scsi_transport_iscsi fuse vfat fat x86_pkg_temp_thermal coretemp intel_cstate intel_uncore snd_hda_codec_hdmi snd_hda_codec_generic snd_hda_codec snd_hwdep snd_hda_core snd_pcm snd_timer snd mei_me mei serio_raw intel_rapl_perf intel_pch_thermal soundcore wmi acpi_pad i2c_algo_bit syscopyarea sysfillrect sysimgblt fb_sys_fops drm r8169 mii video [last unloaded: drm_kms_helper]
[ 1915.935785] CPU: 1 PID: 10861 Comm: kworker/1:0 Tainted: G     U  W       4.9.0-rc5+ #170
[ 1915.935799] Hardware name: LENOVO 80MX/Lenovo E31-80, BIOS DCCN34WW(V2.03) 12/01/2015
[ 1915.935822] Workqueue: pm pm_runtime_work
[ 1915.935845]  ffffc900044fbbf0 ffffffffac3220bc ffffc900044fbc40 0000000000000000
[ 1915.935890]  ffffc900044fbc30 ffffffffac059bcb 000007e6044fbc60 ffff8801626e3198
[ 1915.935937]  ffff8801626e0000 0000000000000002 ffffffffc05e5d4e 0000000000000000
[ 1915.935985] Call Trace:
[ 1915.936013]  [<ffffffffac3220bc>] dump_stack+0x4f/0x73
[ 1915.936038]  [<ffffffffac059bcb>] __warn+0xcb/0xf0
[ 1915.936060]  [<ffffffffac059c4f>] warn_slowpath_fmt+0x5f/0x80
[ 1915.936158]  [<ffffffffc052d916>] i915_gem_runtime_suspend+0x116/0x130 [i915]
[ 1915.936251]  [<ffffffffc04f1c74>] intel_runtime_suspend+0x64/0x280 [i915]
[ 1915.936277]  [<ffffffffac0926f1>] ? dequeue_entity+0x241/0xbc0
[ 1915.936298]  [<ffffffffac36bb85>] pci_pm_runtime_suspend+0x55/0x180
[ 1915.936317]  [<ffffffffac36bb30>] ? pci_pm_runtime_resume+0xa0/0xa0
[ 1915.936339]  [<ffffffffac4514e2>] __rpm_callback+0x32/0x70
[ 1915.936356]  [<ffffffffac451544>] rpm_callback+0x24/0x80
[ 1915.936375]  [<ffffffffac36bb30>] ? pci_pm_runtime_resume+0xa0/0xa0
[ 1915.936392]  [<ffffffffac45222d>] rpm_suspend+0x12d/0x680
[ 1915.936415]  [<ffffffffac69f6d7>] ? _raw_spin_unlock_irq+0x17/0x30
[ 1915.936435]  [<ffffffffac0810b8>] ? finish_task_switch+0x88/0x220
[ 1915.936455]  [<ffffffffac4534bf>] pm_runtime_work+0x6f/0xb0
[ 1915.936477]  [<ffffffffac074353>] process_one_work+0x1f3/0x4d0
[ 1915.936501]  [<ffffffffac074678>] worker_thread+0x48/0x4e0
[ 1915.936523]  [<ffffffffac074630>] ? process_one_work+0x4d0/0x4d0
[ 1915.936542]  [<ffffffffac074630>] ? process_one_work+0x4d0/0x4d0
[ 1915.936559]  [<ffffffffac07a2c9>] kthread+0xd9/0xf0
[ 1915.936580]  [<ffffffffac07a1f0>] ? kthread_park+0x60/0x60
[ 1915.936600]  [<ffffffffac69fe62>] ret_from_fork+0x22/0x30

In the case the register is pinned, it should be present and we will
need to invalidate them to be restored upon resume as we cannot expect
the owner of the pin to call get_fence prior to use after resume.

Fixes: 7c108fd8fe ("drm/i915: Move fence cancellation to runtime suspend")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=98804
Reported-by: Lionel Landwerlin <lionel.g.landwerlin@linux.intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Imre Deak <imre.deak@linux.intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: <drm-intel-fixes@lists.freedesktop.org> # v4.10-rc1+
Link: http://patchwork.freedesktop.org/patch/msgid/20170203125717.8431-1-chris@chris-wilson.co.uk
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
2017-02-07 14:37:37 +00:00
Hoegeun Kwon
7ff093d09f drm/exynos: fimd: Do not use HW trigger for exynos3250
Commit a6f75aa161 ("drm/exynos: fimd: add HW trigger support") added
hardware trigger support to the FIMD controller driver. I have tested
but this broke the display in at least the exynos3250 Gear 2. So until
the issue is fixed, avoid using HW trigger for the exynos3250 based
boards and use SW trigger as it was before the mentioned commit.

Signed-off-by: Hoegeun Kwon <hoegeun.kwon@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2017-02-07 13:54:01 +09:00
Andrzej Hajda
aa18157016 drm/exynos/hdmi: add bridge support
On TM2/TM2e platforms HDMI output is connected to MHL bridge
SiI8620. To allow configure UltraHD modes on the bridge
and to eliminate unsupported modes this bridge should be
attached to drm_encoder implemented in exynos_hdmi.

Changelog v1:
- fix drm_attach_bridge argument.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2017-02-07 13:52:52 +09:00
Andrzej Hajda
1514d50b7a drm/exynos/decon5433: signal vblank only on odd fields
In case of interlace mode irq is generated for odd and even fields, but
vblank should be signaled only for the last emitted field.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2017-02-07 13:52:52 +09:00
Andrzej Hajda
5aa6c9ace5 drm/exynos/decon5433: add support for interlace modes
Some registers should be programmed differently in interlace mode.
Additionally IP does not signal stop state properly in interlaced
mode, so warning has been removed.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2017-02-07 13:52:51 +09:00
Andrzej Hajda
849fb0de89 drm/exynos/hdmi: fix PLL for 27MHz settings
Current settings for 27MHz and 27.027MHz do not work. Use the settings from
vendor code instead.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2017-02-07 13:52:50 +09:00
Andrzej Hajda
10abdbc5ee drm/exynos/hdmi: fix VSI infoframe registers
VSI infoframe registers address space is non-contiguous, so infoframe write
should be split into two chunks.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2017-02-07 13:52:50 +09:00
Andrzej Hajda
6482258802 drm/exynos/hdmi: add 297MHz pixel clock support
297MHz is used by Ultra HD modes.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2017-02-07 13:52:49 +09:00
Tobias Jakobi
d796ddc9ea drm/exynos: g2d: change platform driver name to 'exynos-drm-g2d'
The current name is 's5p-g2d', which is identical with the driver
name of the old V4L2 driver in media/platform.
This is probably due to the DRM driver being based on the V4L2
driver when it was initially created. Still the clashing of driver
names is confusing, so rename it to something in line with the
other DRM subdrivers.

Signed-off-by: Tobias Jakobi <tjakobi@math.uni-bielefeld.de>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2017-02-07 13:52:49 +09:00
Andrzej Hajda
b93c2e8b5d drm/exynos/decon5433: configure sysreg in case of hardware trigger
In case of HW trigger mode, sysreg register should be configured to
enable TE functionality. The patch refactors also trigger setup function.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Inki Dae <inki.dae@samsung.com>
2017-02-07 13:52:48 +09:00
Mark Yao
213c4b9663 drm/rockchip: cdn-dp: fix cdn-dp complie warning
fix warning:

drivers/gpu/drm/rockchip/cdn-dp-reg.c:632:24: warning:
  'val[1]' may be used uninitialized in this function [-Wmaybe-uninitialized]
  msa_misc = 2 * val[0] + 32 * val[1] +

Signed-off-by: Mark Yao <mark.yao@rock-chips.com>
2017-02-07 11:06:01 +08:00
Dave Airlie
26d7f34cae Merge branch 'msm-next' of git://people.freedesktop.org/~robclark/linux into drm-next
The big things this time around are:
1) support for hw cursor on newer mdp5 devices (snapdragon 820+,
tested on db820c)
2) dsi encoder cleanup
3) gpu dt bindings cleanup so we can get the gpu nodes merged upstream

* 'msm-next' of git://people.freedesktop.org/~robclark/linux: (32 commits)
  drm/msm: return -EFAULT if copy_from_user() fails
  drm/msm/dsi: Add PHY/PLL for 8x96
  drm/msm/dsi: Add new method to calculate 14nm PHY timings
  drm/msm/dsi: Move PHY operations out of host
  drm/msm/dsi: Reset both PHYs before clock operation for dual DSI
  drm/msm/dsi: Pass down use case to PHY
  drm/msm/dsi: Return more timings from PHY to host
  drm/msm/dsi: Add a PHY op that initializes version specific stuff
  drm/msm/dsi: Add 8x96 info in dsi_cfg
  drm/msm/dsi: Don't error if a DSI host doesn't have a device connected
  drm/msm/mdp5: Add support for legacy cursor updates
  drm/msm/mdp5: Refactor mdp5_plane_atomic_check
  drm/msm/mdp5: Add cursor planes
  drm/msm/mdp5: Misc cursor plane bits
  drm/msm/mdp5: Configure COLOR3_OUT propagation
  drm/msm/mdp5: Use plane helpers to configure src/dst rectangles
  drm/msm/mdp5: Prepare CRTC/LM for empty stages
  drm/msm/mdp5: Create only as many CRTCs as we need
  drm/msm/mdp5: cfg: Change count to unsigned int
  drm/msm/mdp5: Create single encoder per interface (INTF)
  ...
2017-02-07 11:05:42 +10:00
Dave Airlie
538f1dcdc5 Merge branch 'drm-rockchip-next-2017-02-05' of https://github.com/markyzq/kernel-drm-rockchip into drm-next
rockchip CDN-DP support.

* 'drm-rockchip-next-2017-02-05' of https://github.com/markyzq/kernel-drm-rockchip:
  drm/rockchip: cdn-dp: don't configure hardware in mode_set
  drm/rockchip: cdn-dp: retry to check sink count
  drm/rockchip: cdn-dp: Move mutex_init to probe
  drm/rockchip: cdn-dp: do not use drm_helper_hpd_irq_event
  drm/rockchip: cdn-dp: Do not run worker while suspended
  drm/rockchip: cdn-dp: Load firmware if no monitor connected
  drm/rockchip: cdn-dp: add cdn DP support for rk3399
  drm/rockchip: return ERR_PTR instead of NULL
  drm/rockchip: vop: make vop register setting take effect
2017-02-07 11:03:30 +10:00
Chris Wilson
418e3cd800 drm/i915: Show the current i915_params in debugfs/i915_capabilites
Alongside the hw capabilities, it is useful to know which of those have
been overridden by the user setting module parameters.

v2: Use __always_inline and BUILD_BUG magic

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170206213608.31328-4-chris@chris-wilson.co.uk
2017-02-06 22:37:35 +00:00
Chris Wilson
642c8a7253 drm/i915: Capture module parameters for the GPU error state
They include useful material such as what mode the VM address space is
running in, what submission mode, extra quirks, etc.

v2: Undef the right macro, use type specific pretty printers
v3: Use strcmp(TYPENAME) rather than creating per-type pretty printers
v4: Use __always_inline to force GCC to eliminate the calls to strcmp and
generate the right call to seq_printf for each parameter.
v5: With the strcmp elimination, we can now use BUILD_BUG to ensure
there are no unhandled types, also use __builtin_strcmp to make it look
even more magic.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Acked-by: Mika Kuoppala <mika.kuoppala@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170206213608.31328-3-chris@chris-wilson.co.uk
2017-02-06 22:37:34 +00:00
Chris Wilson
1a2010ca52 drm/i915: Use bool i915_param.alpha_support
The alpha_support module option can only take one of two values, so
assign it to a boolean type. The only advantage is in pretty printing
via /sys/module/i915/parameters/alpha_support and elsewhere.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170206213608.31328-2-chris@chris-wilson.co.uk
2017-02-06 22:37:33 +00:00
Chris Wilson
b8cf691e28 drm/i915: Generate i915_params {} using a macro
I want to print the struct from the error state and so would like to use
the existing struct definition as the template ala DEV_INFO*

v2: Use MEMBER() rather than p().

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170206213608.31328-1-chris@chris-wilson.co.uk
2017-02-06 22:37:32 +00:00
Chris Wilson
2ffe80aa44 drm/i915: Avoid unguarded reads from the request pointer
In commit 86aa7e760a ("drm/i915: Assert that the context-switch
completion matches our context") I added a read to the irq tasklet
handler that compared the on-chip status with that of our sw tracking,
using an unguarded read of the request pointer to get the context and
beyond. Whilst we hold a reference to the request, we do not hold
anything on the context and if we are unlucky it may be reaped from a
second thread retiring the request (since it may retire the request as
soon as the breadcrumb is complete, even before we finish processing the
context switch) as we try to read from the context pointer.

Avoid the racy read from underneath the request by storing the expected
result in the execlist_port[].

v2: Include commentary about port[].request being unprotected.

Fixes: 86aa7e760a ("drm/i915: Assert that the context-switch completion matches our context")
Reported-by: Mika Kuoppala <mika.kuoppala@intel.com>
Testcase: igt/gem_ctx_create
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170206170502.30944-2-chris@chris-wilson.co.uk
2017-02-06 20:41:01 +00:00
Chris Wilson
eca56a3511 drm/i915: Mark the end of intel_ring_begin() and check in intel_ring_advance()
It is required that the caller declare the exact number of dwords they
wish to write into the ring. This is required for two reasons, we need
to allocate sufficient space for the entire command packet and we need
to be sure that the contents are completely written to avoid executing
stale data. The current interface requires for any bug to be caught in
review, the reader has to carefully count the number of
intel_ring_emit() between intel_ring_begin() and intel_ring_advance().
If we record the end of the packet of each intel_ring_begin() we can
also have CI check for us.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170206170502.30944-1-chris@chris-wilson.co.uk
2017-02-06 20:41:00 +00:00
Dan Carpenter
21c42da18e drm/msm: return -EFAULT if copy_from_user() fails
copy_from_user_inatomic() is actually a local function that returns
-EFAULT or positive values on error.  Otherwise copy_from_user() returns
the number of bytes remaining to be copied.  We want to return -EFAULT
here.

I removed an unlikely() because we just did a copy_from_user()
so I don't think it can possibly make a difference.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-02-06 11:28:45 -05:00
Archit Taneja
f079f6d999 drm/msm/dsi: Add PHY/PLL for 8x96
Extend the DSI PHY/PLL drivers to support the DSI 14nm PHY/PLL
found on 8x96.

These are picked up from the downstream driver. The PHY part is similar
to the other DSI PHYs. The PLL driver requires some trickery so that
one DSI PLL can drive both the DSIs (i.e, dual DSI mode).

In the case of dual DSI mode. One DSI instance becomes the clock master,
and other the clock slave. The master PLL's output (Byte and Pixel clock)
is fed to both the DSI hosts/PHYs.

When the DSIs are configured in dual DSI mode, the PHY driver communicates
to the PLL driver using msm_dsi_pll_set_usecase() which instance is the
master and which one is the slave. When setting rate, the master PLL also
configures some of the slave PLL/PHY registers which need to be identical
to the master's for correct dual DSI behaviour.

There are 2 PLL post dividers that should have ideally been modelled as
generic clk_divider clocks, but require some customization for dual DSI.
In particular, when the master PLL's post-diviers are set, the slave PLL's
post-dividers need to be set too. The clk_ops for these use clk_divider's
helper ops and flags internally to prevent redundant code.

Cc: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-02-06 11:28:45 -05:00
Hai Li
a4df68fa23 drm/msm/dsi: Add new method to calculate 14nm PHY timings
The 14nm DSI PHY on 8x96 (called PHY v2 downstream) requires a different
set of calculations for computing D-PHY timing params. Create a
timing_calc_v2 func for the newer v2 PHYs.

Signed-off-by: Hai Li <hali@codeaurora.org>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-02-06 11:28:45 -05:00
Hai Li
b62aa70a98 drm/msm/dsi: Move PHY operations out of host
Since DSI PHY has been a separate platform device, it should not
depend on the resources in host to be functional. This change is
to trigger PHY operations in manager, instead of host, so that
host and PHY can be completely separated.

Signed-off-by: Hai Li <hali@codeaurora.org>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-02-06 11:28:45 -05:00
Archit Taneja
34d9545b9f drm/msm/dsi: Reset both PHYs before clock operation for dual DSI
In case of dual DSI, some registers in PHY1 have been programmed
during PLL0 clock's set_rate. The PHY1 reset called by host1 later
will silently reset those PHY1 registers. This change is to reset
and enable both PHYs before any PLL clock operation.

[Originally worked on by Hai Li <hali@codeaurora.org>. Fixed up
by Archit Taneja <architt@codeaurora.org>]

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-02-06 11:28:45 -05:00
Hai Li
57bf433893 drm/msm/dsi: Pass down use case to PHY
For some new types of DSI PHY, more settings depend on
use cases controlled by DSI manager. This change allows
DSI manager to setup PHY with a use case.

Signed-off-by: Hai Li <hali@codeaurora.org>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-02-06 11:28:45 -05:00
Hai Li
dceac34015 drm/msm/dsi: Return more timings from PHY to host
The DSI host is required to configure more timings calculated
in PHY. By introducing a shared structure, this change allows
more timing information passed from PHY to host.

Signed-off-by: Hai Li <hali@codeaurora.org>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-02-06 11:28:45 -05:00
Archit Taneja
25c45d8970 drm/msm/dsi: Add a PHY op that initializes version specific stuff
Create an init() op for dsi_phy which sets up things specific to
a given DSI PHY.

The dsi_phy driver probe expects every DSI version to get a
"dsi_phy_regulator" mmio base. This isn't the case for 8x96.
Creating an init() op will allow us to accommodate such
differences.

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-02-06 11:28:45 -05:00
Archit Taneja
3a3ff88a0f drm/msm/dsi: Add 8x96 info in dsi_cfg
Add 8x96 DSI data in dsi_cfg. The downstream kernel's dsi_host driver
enables core_mmss_clk. We're seeing some branch clock warnings on
8x96 when enabling this. There doesn't seem to be any negative effect
with not enabling this clock, so use it once we figure out why we
get the warnings.

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-02-06 11:28:44 -05:00
Archit Taneja
a1b1a4f7e4 drm/msm/dsi: Don't error if a DSI host doesn't have a device connected
The driver returns an error if a DSI DT node is populated, but no device
is connected to it or if the data-lane map isn't present. Ideally, such
a DSI node shouldn't be probed at all (i.e, its status should be set to
"disabled in DT"), but there isn't any harm in registering the DSI device
even if it doesn't have a bridge/panel connected to it.

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-02-06 11:28:44 -05:00
Archit Taneja
10967a0687 drm/msm/mdp5: Add support for legacy cursor updates
This code has been more or less picked up from the vc4 and intel
implementations of update_plane() funcs for cursor planes.

The update_plane() func is usually the drm_atomic_helper_update_plane
func that will issue an atomic commit with the plane updates. Such
commits are not intended to be done faster than the vsync rate.

The legacy cursor userspace API, on the other hand, expects the kernel
to handle cursor updates immediately.

Create a fast path in update_plane, which updates the cursor registers
and flushes the configuration. The fast path is taken when there is only
a change in the cursor's position in the crtc, or a change in the
cursor's crop co-ordinates. For anything else, we go via the slow path.

We take the slow path even when the fb changes, and when there is
currently no fb tied to the plane. This should hopefully ensure that we
always take a slow path for every new fb. This in turn should ensure that
the fb is pinned/prepared.

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-02-06 11:28:44 -05:00
Archit Taneja
9142364e46 drm/msm/mdp5: Refactor mdp5_plane_atomic_check
In mdp5_plane_atomic_check, we get crtc_state from drm_plane_state.

Later, for cursor planes, we'll populate the update_plane() func that
takes a fast asynchronous path to implement cursor movements. There, we
would need to call a similar atomic_check func to validate the plane
state, but crtc_state would need to be derived differently.

Refactor mdp5_plane_atomic_check to mdp5_plane_atomic_check_with_state
such that the latter takes crtc_state as an argument.

This is similar to what the intel driver has done for async cursor
updates.

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-02-06 11:28:44 -05:00
Archit Taneja
bff8fba48b drm/msm/mdp5: Add cursor planes
Register cursor drm_planes. The loop in modeset_init that inits the
planes and crtcs has to be refactored a bit. We first iterate all the
hwpipes to find the cursor planes. Then, we loop again to create
crtcs.

In msm_atomic_wait_for_commit_done, remove the check which bypasses
waiting for vsyncs if state->legacy_cursor_updates is true.

We will later create a fast path for cursor position changes in the
cursor plane's update_plane func that doesn't go via the regular
atomic commit path. For rest of cursor related updates, we will have
to wait for vsyncs, so ignore the legacy_cursor_updates flag.

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-02-06 11:28:44 -05:00
Archit Taneja
5798c8e0d3 drm/msm/mdp5: Misc cursor plane bits
These are various changes added in preparation for cursor planes:

- Add a pipe_cursor block for 8x96 in mdp5_cfg.
- Add a new pipe CAP called MDP_PIPE_CAP_CURSOR. Use this to ensure we
  assign a cursor SSPP for a drm_plane with type DRM_PLANE_TYPE_CURSOR.
- Update mdp5_ctl_blend_mask/ext_blend_mask funcs to incorporate cursor
  SSPPs.
- In mdp5_ctl_blend, iterate through MAX_STAGES instead of stage_cnt,
  we need to do this because we can now have empty stages in between.
- In mdp5_crtc_atomic_check, make sure that the cursor plane has the
  highest zorder, and stage the cursor plane to the maximum stage #
  present on the HW.
- Create drm_crtc_funcs that doesn't try to implement cursors using the
  older LM cursor HW.
- Pass drm_plane_type in mdp5_plane_init instead of a bool telling
  whether plane is primary or not.

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-02-06 11:28:44 -05:00
Archit Taneja
829200ac91 drm/msm/mdp5: Configure COLOR3_OUT propagation
In MDP5 Layer Mixer HW, the blender output is only the blended color
components (i.e R, G and B, or COLOR0/1/2 in MDP5 HW terminology). This
is fed to the BG input of the next blender. We also need to provide an
alpha (COLOR3) value for the BG input at the next stage.

This is configured via using the REG_MDP5_LM_BLEND_COLOR_OUT register.
For each stage, we can propagate either the BG or FG alpha to the next
stage.

The approach taken by the driver is to propagate FG alpha, if the plane
staged on that blender has an alpha. If it doesn't, we try to propagate
the base layer's alpha.

This is borrowed from downstream MDP5 kernel driver. Without this, we
don't see any cursor plane content.

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-02-06 11:28:44 -05:00
Archit Taneja
3b6acf1440 drm/msm/mdp5: Use plane helpers to configure src/dst rectangles
The MDP5 plane's atomic_check ops doesn't perform clipping tests.
This didn't hurt us much in the past, but clipping becomes important
with cursor planes.

Use drm_plane_helper_check_state, the way rockchip/intel/mtk drivers
already do. Use these drivers as reference.

Clipping requires knowledge of the crtc width and height. This requires
us to call drm_atomic_helper_check_modeset before
drm_atomic_helper_check_planes in the driver's atomic_check op, because
check_modetest will populate the mode for the crtc, needed to populate
the clip rectangle.

We update the plane_enabled(state) local helper to use state->visible,
since state->visible and 'state->fb && state->crtc' represent the same
thing.

One issue with the existing code is that we don't have a way to disable
the plane when it's completely clipped out. Until there isn't an update
on the crtc (which would de-stage the plane), we would still see the
plane in its last 'visible' configuration.

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-02-06 11:28:44 -05:00
Archit Taneja
106f9727dd drm/msm/mdp5: Prepare CRTC/LM for empty stages
Use SSPP_NONE in mdp5_plane_pipe() if there is now hwpipe allocated for
the drm_plane. Returning '0' means we are returning VIG0 pipe.

Also, use the mdp5_pipe enum to pass around the stage array. Initialize
the stage to SSPP_NONE by default.

We do the above because 1) Cursor plane has to be staged at the topmost
blender of the LM, which can result in empty stages in between 2) In
the future, when we support multiple LMs per CRTC. We could have stages
which don't have any pipe assigned to them.

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-02-06 11:28:44 -05:00
Archit Taneja
e5366ffe50 drm/msm/mdp5: Create only as many CRTCs as we need
We currently create CRTCs equaling to the # of Layer Mixer blocks we
have on the MDP5 HW. This number is generally more than the # of encoders
(INTFs) we have in the MDSS HW. The number of encoders connected to
displays on the platform (as described by DT) would be even lesser.

Create only N drm_crtcs, where N is the number of drm_encoders
successfully registered. To do this, we call modeset_init_intf() before
we init the drm_crtcs and drm_planes.

Because of this change, setting encoder->possible_crtcs needs to be moved
from construct_encoder() to a later point when we know how many CRTCs we
have.

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-02-06 11:28:43 -05:00
Archit Taneja
710a651fdd drm/msm/mdp5: cfg: Change count to unsigned int
Count can't be non-zero. Changing to uint will also prevent future
warnings.

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-02-06 11:28:43 -05:00
Archit Taneja
b3a94705a0 drm/msm/mdp5: Create single encoder per interface (INTF)
For the DSI interfaces, the mdp5_kms core creates 2 encoders for video
and command modes.

Create only a single encoder per interface. When creating the encoder, set
the interface type to MDP5_INTF_MODE_NONE. It's the bridge (DSI/HDMI/eDP)
driver's responsibility to set a different interface type. It can use the
the kms func op set_encoder_mode to change the mode of operation, which
in turn would configure the interface type for the INTF.

In mdp5_cmd_encoder.c, we remove the redundant code, and make the commmand
mode funcs as helpers that are used in mdp5_encoder.c

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-02-06 11:28:43 -05:00
Archit Taneja
df8a71d2b2 drm/msm/mdp5: Prepare for merging video and command encoders
Rename the mdp5_encoder_* ops for active displays to
mdp5_vid_encoder_* ops.

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-02-06 11:28:43 -05:00
Archit Taneja
9c9f6f8d47 drm/msm: Set encoder's mode of operation using a kms func
The mdp5 kms driver currently sets up multiple encoders per interface
(INTF), one for each kind of mode of operation it supports.
We create 2 drm_encoders for DSI, one for Video Mode and the other
for Command Mode operation. The reason behind this approach could have
been that we aren't aware of the DSI device's mode of operation when
we create the encoders.

This makes things a bit complicated, since these encoders have to
be further attached to the same DSI bridge. The easier way out is
to create a single encoder, and make the DSI driver set its mode
of operation when we know what the DSI device's mode flags are.

Start with providing a way to set the mdp5_intf_mode using a kms
func that sets the encoder's mode of operation. When constructing
a DSI encoder, we set the mode of operation to Video Mode as
default. When the DSI device is attached to the host, we probe the
DSI mode flags and set the corresponding mode of operation.

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-02-06 11:28:43 -05:00
Archit Taneja
97e0011953 drm/msm: Construct only one encoder for DSI
We currently create 2 encoders for DSI interfaces, one for command
mode and other for video mode operation. This isn't needed as we
can't really use both the encoders at the same time. It also makes
connecting bridges harder.

Switch to creating a single encoder. For now, we assume that the
encoder is configured only in video mode. Later, the same encoder
would be usable in both modes.

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-02-06 11:28:43 -05:00
Archit Taneja
0bb70b82c2 drm/msm/dsi: Set msm_dsi->encoders before initializing bridge
The commit "drm: bridge: Link encoder and bridge in core code" updated
the drm_bridge_attach() API to also include the drm_encoder pointer
the bridge attaches to.

The func msm_dsi_manager_bridge_init() now relies on the drm_encoder
pointer stored in msm_dsi->encoders to pass the encoder to the bridge
API.

msm_dsi->encoders is unfortunately set after this function is called,
resulting in us passing a NULL pointer to drm_brigde_attach. This
results in an error and the DSI driver probe fails.

Move the initialization of msm_dsi->encoders[] a bit up. Also, don't
try to set the encoder's bridge. That's now managed by the bridge
API.

Cc: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-02-06 11:28:43 -05:00
Archit Taneja
cd576abfff drm/msm/dsi: Update generated headers
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-02-06 11:28:43 -05:00
Archit Taneja
f71516bd58 drm/msm/mdp5: Update generated headers
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-02-06 11:28:42 -05:00
Archit Taneja
d90d7026e7 drm/msm/mdp5: cfg: Add pipe_cursor block
Define the block in advance so that the generated mdp5.xml.h doesn't
break build.

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-02-06 11:28:42 -05:00
Rob Clark
7f8036b7f6 drm/msm: let gpu wire up it's own fault handler
Signed-off-by: Rob Clark <robdclark@gmail.com>
2017-02-06 11:28:42 -05:00
Rob Clark
720c3bb802 drm/msm: drop _clk suffix from clk names
Suggested by Rob Herring.  We still support the old names for
compatibility with downstream android dt files.

Cc: Rob Herring <robh@kernel.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Acked-by: Rob Herring <robh@kernel.org>
2017-02-06 11:28:42 -05:00
Rob Clark
4e09b95d72 drm/msm: drop quirks binding
This was never documented or used in upstream dtb.  It is used by
downstream bindings from android device kernels.  But the quirks are
a property of the gpu revision, and as such are redundant to be listed
separately in dt.  Instead, move the quirks to the device table.

Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
2017-02-06 11:28:42 -05:00
Rob Clark
1db7afa491 drm/msm: drop qcom,chipid
The original way we determined the gpu version was based on downstream
bindings from android kernel.  A cleaner way is to get the version from
the compatible string.

Note that no upstream dtb uses these bindings.  But the code still
supports falling back to the legacy bindings (with a warning), so that
we are still compatible with the gpu dt node from android device
kernels.

Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Acked-by: Rob Herring <robh@kernel.org>
2017-02-06 11:28:42 -05:00
Rob Clark
1a4a66ddc7 drm/msm: remove qcom,gpu-pwrlevels bindings
The plan is to use the OPP bindings.  For now, remove the documentation
for qcom,gpu-pwrlevels, and make the driver fall back to a safe low
clock if the node is not present.

Note that no upstream dtb use this node.  For now we keep compatibility
with this node to avoid breaking compatibility with downstream android
dt files.

Signed-off-by: Rob Clark <robdclark@gmail.com>
Reviewed-by: Eric Anholt <eric@anholt.net>
Acked-by: Rob Herring <robh@kernel.org>
2017-02-06 11:28:42 -05:00
Zhi Wang
04da811b3d drm/i915: Let execlist_update_context() cover !FULL_PPGTT mode.
execlist_update_context() will try to update PDPs in a context before a
ELSP submission only for full PPGTT mode, while PDPs was populated during
context initialization. Now the latter code path is removed. Let
execlist_update_context() also cover !FULL_PPGTT mode.

Fixes: 34869776c7 ("drm/i915: check ppgtt validity when init reg state")
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: Michal Winiarski <michal.winiarski@intel.com>
Cc: Michel Thierry <michel.thierry@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Zhenyu Wang <zhenyuw@linux.intel.com>
Cc: Zhiyuan Lv <zhiyuan.lv@intel.com>
Signed-off-by: Zhi Wang <zhi.a.wang@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1486377436-15380-1-git-send-email-zhi.a.wang@intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2017-02-06 15:14:14 +00:00
Imre Deak
1a56b1a2db drm/i915/gen5+, pch: Enable hotplug detection early
To be consistent with the recent change to enable hotplug detection
early on GEN9 platforms do the same on all non-GMCH platforms starting
from GEN5. On GMCH platforms enabling detection without interrupts isn't
trivial, since AUX and HPD have a shared interrupt line. It could be
done there too by using a SW interrupt mask, but I punt on that for now.

Cc: Shashank Sharma <shashank.sharma@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Shashank Sharma <shashank.sharma@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1485509961-9010-5-git-send-email-imre.deak@intel.com
2017-02-06 16:33:42 +02:00
Imre Deak
f123959594 drm/i915/lspcon: Remove DPCD compare based resume time workaround
This effectively reverts
commit 489375c866
Author: Imre Deak <imre.deak@intel.com>
Date:   Mon Oct 24 19:33:31 2016 +0300

    drm/i915/lspcon: Add workaround for resuming in PCON mode

The workaround was added without considering that HPD is low during
the failed AUX transfers the WA fixed. Since the previous patch we
wait for HPD to get asserted. My tests also show that this happens
_after_ the DPCD reads start to return correct values. This
suggests that we don't need this WA any more, let's try to remove
it to reduce the clutter.

Cc: Shashank Sharma <shashank.sharma@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Shashank Sharma <shashank.sharma@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1485509961-9010-4-git-send-email-imre.deak@intel.com
2017-02-06 16:33:33 +02:00
Imre Deak
390b4e0024 drm/i915/lspcon: Fix resume time initialization due to unasserted HPD
During system resume time initialization the HPD level on LSPCON ports
can stay low for an extended amount of time, leading to failed AUX
transfers and LSPCON initialization. Fix this by waiting for HPD to get
asserted.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99178
Cc: Shashank Sharma <shashank.sharma@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: <stable@vger.kernel.org> # v4.9+
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Shashank Sharma <shashank.sharma@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1485509961-9010-3-git-send-email-imre.deak@intel.com
2017-02-06 16:33:27 +02:00
Imre Deak
7fff8126d9 drm/i915/gen9+: Enable hotplug detection early
For LSPCON resume time initialization we need to sample the
corresponding pin's HPD level, but this is only available when HPD
detection is enabled. Currently we enable detection only when enabling
HPD interrupts which is too late, so bring the enabling of detection
earlier.

This is needed by the next patch.

Cc: Shashank Sharma <shashank.sharma@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: <stable@vger.kernel.org> # v4.9+
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Shashank Sharma <shashank.sharma@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1485509961-9010-2-git-send-email-imre.deak@intel.com
2017-02-06 16:32:32 +02:00
Chris Wilson
a6508ded2a drm/i915: Use page coloring to provide the guard page at the end of the GTT
As we now mark the reserved hole (drm_mm.head_node) with the special
UNEVICTABLE color, we can use the page coloring to avoid prefetching of
the CS beyond the end of the GTT.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170206084547.27921-3-chris@chris-wilson.co.uk
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
2017-02-06 13:46:40 +00:00
Chris Wilson
47db922fa1 drm/i915: Assign I915_COLOR_UNEVICTABLE to the address space head_node
The drm_mm range manager (within i915_address_space) uses a special
drm_mm_node that excludes the unavailable range (beyond the end of the
drm_mm). However, we play games with the global GTT to use the head_node
to exclude the tail page but tell ourselves that the whole range is
available. This causes an issue when we try to evict using the full
range of the global GTT which is wider than the drm_mm, resulting in
complete confusion and catastrophe. One way to resolve this would be to
use a reserved node to exclude the guard page, or we can treat the
drm_mm's head_node as our guard page and assign it the appropriate
colour.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170206084547.27921-2-chris@chris-wilson.co.uk
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
2017-02-06 13:46:23 +00:00
Chris Wilson
b196fbc719 drm/i915: Manipulate the Global GTT size using I915_GTT_PAGE_SIZE
I incorrectly converted the exclusion of the last 4096 bytes (that avoids
any potential prefetching past the end of the GTT) to PAGE_SIZE and not
to I915_GTT_PAGE_SIZE as it should be.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170206084547.27921-1-chris@chris-wilson.co.uk
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
2017-02-06 13:45:29 +00:00
Chris Wilson
22cc440eae drm/i915: Print execlists restart after reset
After resetting, show the requests that each engine restarts from in the
debug log.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170204110519.7645-1-chris@chris-wilson.co.uk
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
2017-02-06 11:48:16 +00:00
Chris Wilson
ba318c61a9 drm/i915: Drain the freed state from the tail of the next commit
If we have any residual freed atomic state from earlier commits, flush
the freed list after performing the current modeset. This prevents the
freed list from ever-growing if userspace manages to starve the kernel
threads (i.e. we are never able to run our free state worker and
eventually the system may even oom).

Fixes: eb955eee27 ("drm/i915: Move atomic state free from out of fence release")
Testcase: igt/kms_cursor/legacy/all-pipes-single-bo
Reported-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170202204741.18231-1-chris@chris-wilson.co.uk
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
2017-02-06 09:25:38 +00:00
Daniel Vetter
28b6def6ec drm/i915: Update DRIVER_DATE to 20170206
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2017-02-06 10:23:13 +01:00
Daniele Ceraolo Spurio
ccfceda22c drm/i915: refactor register fw read/write macros for recent GENs
The only difference for the more recent of those macros is the version
of the *_reg_<read/write>_fw_domains function. Passing the function
prefix in allows us to re-use the same macro to generate functions for
different GENs and will make it easier to add new accessors in the future

Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1486171409-21542-1-git-send-email-daniele.ceraolospurio@intel.com
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2017-02-06 08:55:40 +00:00
Chris Zhong
ef1844b7ed drm/rockchip: cdn-dp: don't configure hardware in mode_set
With atomic modesetting the hardware will be powered off when the
mode_set function is called.  We should configure the hardware in the
enable function.

Signed-off-by: Chris Zhong <zyw@rock-chips.com>
2017-02-05 16:30:11 +08:00
Chris Zhong
13e0e20694 drm/rockchip: cdn-dp: retry to check sink count
Sometimes the Dock is disconnected, but cdn_dp_encoder_disable is not
triggered by DRM. For example, unplug the Dock in console mode, and
re-plug it again, the cdn_dp_event_work will try to get the sink count
of Dock, since the DP is still active. But the Dock has been powered
down, it need re-power on, and wait for a while until it is ready to
DPCD communication.

Signed-off-by: Chris Zhong <zyw@rock-chips.com>
2017-02-05 16:30:04 +08:00
Jeffy Chen
be0270e4d1 drm/rockchip: cdn-dp: Move mutex_init to probe
We're trying to lock mutex when cdn-dp shutdown, so we need to make
sure the mutex is inited in cdn-dp's probe.

Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
Reviewed-by: Chris Zhong <zyw@rock-chips.com>
Signed-off-by: Chris Zhong <zyw@rock-chips.com>
2017-02-05 16:29:58 +08:00
Chris Zhong
81632df697 drm/rockchip: cdn-dp: do not use drm_helper_hpd_irq_event
The cdn_dp_pd_event_work is using drm_helper_hpd_irq_event to update the
connector status, this function is used to update all connectors of
drm_device. Therefore, the detect of other connector will be call, when
cdn_dp_pd_event_work is triggered, every time. It is not necessary, and
it may cause system crash. replace drm_helper_hpd_irq_event with
drm_kms_helper_hotplug_event, only update cdn-dp status.

Signed-off-by: Chris Zhong <zyw@rock-chips.com>
Tested-by: Guenter Roeck <groeck@chromium.org>
Reviewed-by: Guenter Roeck <groeck@chromium.org>
2017-02-05 16:29:52 +08:00
Guenter Roeck
5eb2e6ee97 drm/rockchip: cdn-dp: Do not run worker while suspended
If the driver is in suspended mode, the dp block may be disabled, and
chip registers may not be accessible. Yet, the worker may be triggered
in this situation by an extcon event. If that happens, the following crash
will be seen.

cdn-dp fec00000.dp: [drm:cdn_dp_pd_event_work] *ERROR* Enable dp failed -19
cdn-dp fec00000.dp: [drm:cdn_dp_pd_event_work] Connected, not enabled. Enabling cdn
Bad mode in Error handler detected, code 0xbf000002 -- SError
CPU: 1 PID: 10357 Comm: kworker/1:2 Not tainted 4.4.21-05903-ge0514ea #1
Hardware name: Google Kevin (DT)
Workqueue: events cdn_dp_pd_event_work
task: ffffffc0cda67080 ti: ffffffc0b9b80000 task.ti: ffffffc0b9b80000
PC is at cdn_dp_clock_reset+0x30/0xa8
LR is at cdn_dp_enable+0x1e0/0x69c
...
Call trace:
[<ffffffc0005a7e24>] cdn_dp_pd_event_work+0x58/0x3f4
[<ffffffc0002397f0>] process_one_work+0x240/0x424
[<ffffffc00023a28c>] worker_thread+0x2fc/0x424
[<ffffffc00023f5fc>] kthread+0x10c/0x114
[<ffffffc000203dd0>] ret_from_fork+0x10/0x40

Problem is two-fold: The worker should not run while suspended, and the
suspend function should not call cdn_dp_disable() while the worker is
running.

Signed-off-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Chris Zhong <zyw@rock-chips.com>
2017-02-05 16:29:46 +08:00
Guenter Roeck
83c132ed46 drm/rockchip: cdn-dp: Load firmware if no monitor connected
If no monitor is connected, suspend/resume cycles result in firmware
load errors because the driver attempts to load the firmware while
the system is in suspend state. This results in a kernel warning and
traceback.

Loading the firmware during boot fixes the problem. Note that we can not
just call schedule_work conditionally in cdn_dp_pd_event() if the insertion
status changed. The problem would still be seen if a monitor is connected
for the first time during suspend.

Signed-off-by: Guenter Roeck <groeck@chromium.org>
Signed-off-by: Sean Paul <seanpaul@chromium.org>
Signed-off-by: Chris Zhong <zyw@rock-chips.com>
2017-02-05 16:29:39 +08:00
Chris Zhong
1a0f7ed3ab drm/rockchip: cdn-dp: add cdn DP support for rk3399
Add support for cdn DP controller which is embedded in the rk3399
SoCs. The DP is compliant with DisplayPort Specification,
Version 1.3, This IP is compatible with the rockchip type-c PHY IP.
There is a uCPU in DP controller, it need a firmware to work,
please put the firmware file to /lib/firmware/rockchip/dptx.bin. The
uCPU in charge of aux communication and link training, the host use
mailbox to communicate with the ucpu.
The dclk pin_pol of vop must not be invert for DP.

Signed-off-by: Chris Zhong <zyw@rock-chips.com>
[seanpaul fixed up some races between the worker and modeset]
[seanpaul squashed ~15 commits from chromium.org gerrit]
Signed-off-by: Sean Paul <seanpaul@chromium.org>
[groeck fixed compilation errors when building as module]
Signed-off-by: Guenter Roeck <groeck@chromium.org>
2017-02-05 16:29:29 +08:00
Julia Lawall
5a2c920c99 drm/rockchip: return ERR_PTR instead of NULL
rockchip_drm_framebuffer_init is only used in one case, in
rockchip_drm_fbdev.c, where its return value is tested using IS_ERR.  To
enable propagating the reason for the error, change the definition so that
it returns an ERR_PTR value.

Problem found with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
2017-02-05 16:19:11 +08:00
Chris Zhong
17a794d768 drm/rockchip: vop: make vop register setting take effect
The setting of vop registers need a reg_done writing to take effect.
In vop_enable the vop return to work by by restoring registers, but the
registers do not take effect immediately, it should a vop_cfg_done
after it. The same thing is needed by windows_disabled in
vop_crtc_disable.

Signed-off-by: Chris Zhong <zyw@rock-chips.com>
2017-02-05 16:16:07 +08:00
Daniele Ceraolo Spurio
4a04e37122 drm/i915: fix pm refcounting on fence error in execbuf
Fences are creted/checked before the pm ref is taken, so if we jump to
pre_mutex_err we will uncorrectly call intel_runtime_pm_put.

v2: Massage unwind error paths

Fixes: fec0445caa (drm/i915: Support explicit fencing for execbuf)
Testcase: igt/gem_exec_params
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1486161930-11764-1-git-send-email-daniele.ceraolospurio@intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2017-02-04 09:42:07 +00:00
Chris Wilson
955b8e9ca8 drm/i915: Allow large objects to be tiled on gen2/3
We now have partial VMA support to break large objects into fence sized
regions and no longer have to restrict tiling to small objects on gen2/3

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170203115036.24743-2-chris@chris-wilson.co.uk
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
2017-02-03 15:55:48 +00:00
Chris Wilson
a3a1e5336c drm/i915: Tidy the tail of i915_tiling_ok()
The current tail breaks the pattern of if (check) return false, which
can catch the reader out. If we move the gen2/3 power-of-two test into
the earlier gen2/3 branch, we can eliminate the contrary tail.

Suggested-by: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170203115036.24743-1-chris@chris-wilson.co.uk
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
2017-02-03 15:52:56 +00:00
Chris Wilson
52da22e7ab drm/i915: Reject set-tiling-ioctl with stride==0 and a tiling mode
In commit 957870f934 ("drm/i915: Split out i915_gem_object_set_tiling()"),
I swapped an alignment check for IS_ALIGNED and in the process removed
the less-than check. That check turns out to be important as it was the
only rejection for stride == 0. Tvrtko did spot it, but I was
overconfident in the IS_ALIGNED() conversion.

Fixes: 957870f934 ("drm/i915: Split out i915_gem_object_set_tiling()")
Testcase: igt/gem_tiling_max_stride
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170203105652.27819-1-chris@chris-wilson.co.uk
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
2017-02-03 13:03:07 +00:00
Lee, Shawn C
0aab2c721d drm/i915/bxt: Add MST support when do DPLL calculation
Add the missing INTEL_OUTPUT_DP_MST case in bxt_get_dpll()
to correctly initialize the crtc_state and port plls when
link training a DP MST monitor on BXT/APL devices.

Fixes: a277ca7dc0 ("drm/i915: Split bxt_ddi_pll_select()")
Bugs: https://bugs.freedesktop.org/show_bug.cgi?id=99572
Reviewed-by: Cooper Chiou <cooper.chiou@intel.com>
Reviewed-by: Gary C Wang <gary.c.wang@intel.com>
Reviewed-by: Ciobanu, Nathan D <nathan.d.ciobanu@intel.com>
Reviewed-by: Herbert, Marc <marc.herbert@intel.com>
Reviewed-by: Bride, Jim <jim.bride@intel.com>
Reviewed-by: Navare, Manasi D <manasi.d.navare@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: <stable@vger.kernel.org> # v4.9+
Signed-off-by: Lee, Shawn C <shawn.c.lee@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1486096329-6255-1-git-send-email-shawn.c.lee@intel.com
2017-02-03 14:44:21 +02:00
Chris Wilson
bb18dfcc64 drm: kselftest for drm_mm and bottom-up allocation
Check that if we request bottom-up allocation from drm_mm_insert_node()
we receive the next available hole from the bottom.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170202114434.3060-2-chris@chris-wilson.co.uk
2017-02-03 11:36:49 +01:00
Matthew Auld
e32e836afe drm/i915: remove 512GB allocation warning
Now that we have selftests in place exercising truly huge allocations
we will start to hit the 512GB warning, so now seems like a good time to
remove this user-triggerable WARN.

Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1486047300-13198-1-git-send-email-matthew.auld@intel.com
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2017-02-03 10:30:16 +00:00
Chris Wilson
4e64e5539d drm: Improve drm_mm search (and fix topdown allocation) with rbtrees
The drm_mm range manager claimed to support top-down insertion, but it
was neither searching for the top-most hole that could fit the
allocation request nor fitting the request to the hole correctly.

In order to search the range efficiently, we create a secondary index
for the holes using either their size or their address. This index
allows us to find the smallest hole or the hole at the bottom or top of
the range efficiently, whilst keeping the hole stack to rapidly service
evictions.

v2: Search for holes both high and low. Rename flags to mode.
v3: Discover rb_entry_safe() and use it!
v4: Kerneldoc for enum drm_mm_insert_mode.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Cc: "Christian König" <christian.koenig@amd.com>
Cc: David Airlie <airlied@linux.ie>
Cc: Russell King <rmk+kernel@armlinux.org.uk>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Sean Paul <seanpaul@chromium.org>
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Christian Gmeiner <christian.gmeiner@gmail.com>
Cc: Rob Clark <robdclark@gmail.com>
Cc: Thierry Reding <thierry.reding@gmail.com>
Cc: Stephen Warren <swarren@wwwdotorg.org>
Cc: Alexandre Courbot <gnurou@gmail.com>
Cc: Eric Anholt <eric@anholt.net>
Cc: Sinclair Yeh <syeh@vmware.com>
Cc: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Sinclair Yeh <syeh@vmware.com> # vmwgfx
Reviewed-by: Lucas Stach <l.stach@pengutronix.de> #etnaviv
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170202210438.28702-1-chris@chris-wilson.co.uk
2017-02-03 11:10:32 +01:00
Daniel Vetter
17aad8a340 Merge remote-tracking branch 'airlied/drm-next' into drm-misc-next
Yet another backmerge to get at latest etnaviv code, which is need for
Chris' drm_mm patch.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2017-02-03 11:09:36 +01:00
Chris Wilson
bb96dcf583 drm/i915: Recreate internal objects with single page segments if dmar fails
If we fail to dma-map the object, the most common cause is lack of space
inside the SW-IOTLB due to fragmentation. If we recreate the_sg_table
using segments of PAGE_SIZE (and single page allocations), we may succeed
in remapping the scatterlist.

First became a significant problem for the mock selftests after commit
5584f1b1d7 ("drm/i915: fix i915 running as dom0 under Xen") increased
the max_order.

Fixes: 920cf41949 ("drm/i915: Introduce an internal allocator for disposable private objects")
Fixes: 5584f1b1d7 ("drm/i915: fix i915 running as dom0 under Xen")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170202132721.12711-1-chris@chris-wilson.co.uk
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: <drm-intel-fixes@lists.freedesktop.org> # v4.10-rc1+
2017-02-03 09:55:58 +00:00
Dave Airlie
99743ae4c5 Merge branch 'drm-etnaviv-next' of https://git.pengutronix.de/git/lst/linux into drm-next
It includes code cleanups from Bhumika and Liviu, a significant shader
performance fix and additions to the cmdstream validator from Wladimir
and the addition of a cmdbuf suballocator by myself.
The suballocator improves performance on all chips by reducing the CPU
overhead of the kernel driver and side steps the GC3000 FE MMU flush
erratum, now making the workarounds in IOVA allocation we had before
unnecessary, which results in a nice cleanup of the code in that area.

* 'drm-etnaviv-next' of https://git.pengutronix.de/git/lst/linux:
  drm/etnaviv: Remove duplicate header file include
  Revert "drm/etnaviv: trick drm_mm into giving out a low IOVA"
  drm/etnaviv: add cmdbuf suballocator
  drm/etnaviv: get cmdbuf physical address through the cmdbuf abstraction
  drm/etnaviv: wire up iova handling in new cmdbuf abstraction
  drm/etnaviv: move cmdbuf de-/allocation into own file
  drm/etnaviv: always flush MMU TLBs on map/unmap
  drm/etnaviv: constify etnaviv_iommu_ops structures
  drm/etnaviv: set up initial PULSE_EATER register
  drm/etnaviv: add new GC3000 sensitive states
2017-02-03 05:41:58 +10:00
Christian König
d7d29553d6 drm/amdgpu: stop reserving a shared fence for VA updates
We don't add any fences do the buffer, but just use it's address.

Additional to that we don't need a duplicates list here.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-02-02 13:50:14 -05:00
Christian König
2ffdaafb5d drm/amdgpu: fix race in GEM VA map IOCTL v2
Somebody could try to free the bo_va between mapping and updating it.

v2: fix typos in comment

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Nicolai Hähnle <nicolai.haehnle@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2017-02-02 13:50:03 -05:00
Gabriel Krisman Bertazi
e4563f6ba7 drm: Rely on mode_config data for fb_helper initialization
Instead of receiving the num_crts as a parameter, we can read it
directly from the mode_config structure.  I audited the drivers that
invoke this helper and I believe all of them initialize the mode_config
struct accordingly, prior to calling the fb_helper.

I used the following coccinelle hack to make this transformation, except
for the function headers and comment updates.  The first and second
rules are split because I couldn't find a way to remove the unused
temporary variables at the same time I removed the parameter.

// <smpl>
@r@
expression A,B,D,E;
identifier C;
@@
(
- drm_fb_helper_init(A,B,C,D)
+ drm_fb_helper_init(A,B,D)
|
- drm_fbdev_cma_init_with_funcs(A,B,C,D,E)
+ drm_fbdev_cma_init_with_funcs(A,B,D,E)
|
- drm_fbdev_cma_init(A,B,C,D)
+ drm_fbdev_cma_init(A,B,D)
)

@@
expression A,B,C,D,E;
@@
(
- drm_fb_helper_init(A,B,C,D)
+ drm_fb_helper_init(A,B,D)
|
- drm_fbdev_cma_init_with_funcs(A,B,C,D,E)
+ drm_fbdev_cma_init_with_funcs(A,B,D,E)
|
- drm_fbdev_cma_init(A,B,C,D)
+ drm_fbdev_cma_init(A,B,D)
)

@@
identifier r.C;
type T;
expression V;
@@
- T C;
<...
when != C
- C = V;
...>
// </smpl>

Changes since v1:
 - Rebased on top of the tip of drm-misc-next.
 - Remove mention to sti since a proper fix got merged.

Suggested-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Reviewed-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170202162640.27261-1-krisman@collabora.co.uk
2017-02-02 19:12:00 +01:00
Chris Wilson
f30c92576a drm: Provide a driver hook for drm_dev_release()
Some state is coupled into the device lifetime outside of the
load/unload timeframe and requires teardown during final unreference
from drm_dev_release(). For example, dmabufs hold both a device and
module reference and may live longer than expected (i.e. the current
pattern of the driver tearing down its state and then releasing a
reference to the drm device) and yet touch driver private state when
destroyed.

v2: Export drm_dev_fini() and move the responsibility for finalizing the
drm_device and freeing it to the release callback. (If no callback is
provided, the core will call drm_dev_fini() and kfree(dev) as before.)
v3: Remember to add drm_dev_fini() to drm_drv.h
v4: Tidy language for kerneldoc
v5: Cross reference from drm_dev_init() to note that driver->release()
allows for arbitrary embedding.
v6: Refer to driver data rather than driver state, as state is now
becoming associated with the struct drm_atomic_state and friends.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
[danvet: Use the proper reference for struct members, which is
&drm_driver.release.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170202093632.31017-1-chris@chris-wilson.co.uk
2017-02-02 15:58:06 +01:00
Jani Nikula
3aac4acb89 drm/i915: don't warn about Skylake CPU - KabyPoint PCH combo
Apparently there are machines out there with Skylake CPU and KabyPoint
PCH. Judging from our driver code, there doesn't seem to be any code
paths that would do anything different between SunrisePoint and
KabyPoint PCHs, so it would seem okay to accept the combo without
warnings.

Fixes: 22dea0be50 ("drm/i915: Introduce Kabypoint PCH for Kabylake H/DT.")
References: https://lists.freedesktop.org/archives/intel-gfx/2017-February/118611.html
Reported-by: Rainer Koenig <Rainer.Koenig@ts.fujitsu.com>
Cc: Rainer Koenig <Rainer.Koenig@ts.fujitsu.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: <stable@vger.kernel.org> # v4.8+
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1485956769-26015-1-git-send-email-jani.nikula@intel.com
2017-02-02 16:24:58 +02:00
Neil Armstrong
8aaacbc0e5 drm: meson: rename driver name to meson-drm
The platform driver name is currently "meson" which can lead to some
confusion, this patch renames it to "meson-drm" and removes the owner
attribute since is always added by __platform_driver_register called by the
module_platform_driver() macro.

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Daniel Vetter <daniel@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1486028864-19622-3-git-send-email-narmstrong@baylibre.com
2017-02-02 15:19:56 +01:00
Neil Armstrong
3e6e2fd553 drm: meson: rename module name to meson-drm
The module is currently named "meson.ko" which can lead to some
confusion, this patches renames it "meson-drm.ko"

Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1486028864-19622-2-git-send-email-narmstrong@baylibre.com
2017-02-02 15:19:53 +01:00
Chris Wilson
170b03c4a8 drm/i915: Build DRM range manager selftests for CI
Build the struct drm_mm selftests so that we can trivially run them
within our CI.

"Enable debug, become developer." - Joonas Lahtinen

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170125101102.9010-3-chris@chris-wilson.co.uk
2017-02-02 13:59:05 +00:00
Juergen Gross
5584f1b1d7 drm/i915: fix i915 running as dom0 under Xen
Commit 920cf41949 ("drm/i915: Introduce an internal allocator for
disposable private objects") introduced a regression for the kernel
running as Xen dom0: when switching to graphics mode a GPU HANG
occurred.

Reason seems to be a missing adaption similar to that done in
commit 7453c549f5 ("swiotlb: Export swiotlb_max_segment to users")
to i915_gem_object_get_pages_internal().

So limit the maximum page order to be used according to the maximum
swiotlb segment size instead to the complete swiotlb size.

Fixes: 920cf41949 ("drm/i915: Introduce an internal allocator for disposable private objects")
Signed-off-by: Juergen Gross <jgross@suse.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170202094711.939-1-jgross@suse.com
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: intel-gfx@lists.freedesktop.org
Cc: <drm-intel-fixes@lists.freedesktop.org> # v4.10-rc1+
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2017-02-02 12:25:40 +00:00
Andrzej Hajda
45d0ea86d2 drm/bridge/sii8620: enable interlace modes
Bug in DECON(CRTC) driver prevented interlace modes from proper work.
Since DECON is fixed interlace modes can be enabled in MHL.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-26-git-send-email-a.hajda@samsung.com
2017-02-02 15:15:31 +05:30
Andrzej Hajda
9fc6ade810 drm/bridge/sii8620: enable MHL3 mode if possible
Since all sub-protocols of MHL3 are already supported MHL3 mode can be
enabled. With this patch it is possible to use packed pixel modes and
clocks up to 300MHz - 1920x1080@60Hz and 4K modes.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-25-git-send-email-a.hajda@samsung.com
2017-02-02 15:15:31 +05:30
Andrzej Hajda
a21e658bfb drm/bridge/sii8620: add HSIC initialization code
In case of MHL3 HSIC should be initialized.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-24-git-send-email-a.hajda@samsung.com
2017-02-02 15:15:30 +05:30
Andrzej Hajda
581a923730 drm/bridge/sii8620: improve gen2 write burst IRQ routine
The patch adds code to report back feature complete IRQ, and code
to read and drop burst writes from peer.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-23-git-send-email-a.hajda@samsung.com
2017-02-02 15:15:30 +05:30
Andrzej Hajda
269ed8eec9 drm/bridge/sii8620: send EMSC features on request
Device should report to the peer which features are really supported.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-22-git-send-email-a.hajda@samsung.com
2017-02-02 15:15:29 +05:30
Andrzej Hajda
bf1722cab5 drm/bridge/sii8620: rewrite hdmi start sequence
MHL3 protocol requires registry adjustments depending on chosen video mode.
Necessary information is gathered in mode_fixup callback. In case of HDMI
video modes driver should also send special AVI and MHL3 infoframes.
The patch introduces generic helpers for handling MHL3 infoframes, in
case of appearance of other users of MHL3 infoframes these function can
be moved to common library.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-21-git-send-email-a.hajda@samsung.com
2017-02-02 15:15:29 +05:30
Andrzej Hajda
003f9929f8 drm/bridge/sii8620: fix disconnect sequence
The patch allows to avoid rare cases when discovery fails.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-19-git-send-email-a.hajda@samsung.com
2017-02-02 15:15:28 +05:30
Andrzej Hajda
263b5c93a2 drm/bridge/sii8620: split EDID read and write code
MHL3 requires that after reading EDID from the sink source should ask
peer for features. To make both protocols happy the patch splits the code
accordingly.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-18-git-send-email-a.hajda@samsung.com
2017-02-02 15:15:28 +05:30
Andrzej Hajda
4dc3c07127 drm/bridge/sii8620: add delay during cbus reset
Without delay CBUS sometimes was not reset properly.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-17-git-send-email-a.hajda@samsung.com
2017-02-02 15:15:27 +05:30
Andrzej Hajda
6bed9bc2ae drm/bridge/sii8620: do not stop MHL output when TMDS input is stopped
Stopping output causes full re-detection of the sink and slows down the
process.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-16-git-send-email-a.hajda@samsung.com
2017-02-02 15:15:27 +05:30
Andrzej Hajda
26a4cef815 drm/bridge/sii8620: set gen2 write burst before sending MSC command
Write burst should be enabled for MHL_INT_RC_FEAT_REQ and disabled for
other commands. The patch moves functions up and adds delay setting
for MHL3 burst mode.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-15-git-send-email-a.hajda@samsung.com
2017-02-02 15:15:26 +05:30
Andrzej Hajda
9a466cd1dd drm/bridge/sii8620: abstract out sink detection code
MHL1 and MHL3 have different initialization paths. To make both protocols
happy sink detection is put into continuation after link mode enablement.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-14-git-send-email-a.hajda@samsung.com
2017-02-02 15:15:26 +05:30
Andrzej Hajda
ef822a0745 drm/bridge/sii8620: fix initialization sequence for MHL2 receivers
MHL2 receiver require disabling transmitter on initialization.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-13-git-send-email-a.hajda@samsung.com
2017-02-02 15:15:26 +05:30
Andrzej Hajda
d6d59c5a57 drm/bridge/sii8620: fix MSC message removal
Messages queue can be cleaned up by message callbacks, to avoid repeated
removal of current message it should be removed from the queue before
calling these callbacks.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-12-git-send-email-a.hajda@samsung.com
2017-02-02 15:15:25 +05:30
Andrzej Hajda
73a5d25d50 drm/bridge/sii8620: remove spare CBUS bring-up sequence
In case of MHL3 CBUS is bring-up already in sii8620_got_ecbus_speed.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-11-git-send-email-a.hajda@samsung.com
2017-02-02 15:15:25 +05:30
Andrzej Hajda
e3a654872d drm/bridge/sii8620: fix peer device capabilities read code
Peer capabilities should be read differently depending on protocol version.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-10-git-send-email-a.hajda@samsung.com
2017-02-02 15:15:24 +05:30
Andrzej Hajda
4a36888585 drm/bridge/sii8620: respond to feature requests
MHL3 protocol requires device to respond to feature request from peer.
This minimal answer fulfills the requirement and allows to continue
negotiation.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-9-git-send-email-a.hajda@samsung.com
2017-02-02 15:15:24 +05:30
Andrzej Hajda
e19e9c692f drm/bridge/sii8620: add support for burst eMSC transmissions
Burst transmissions are used in MHL3 mode negotiation.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-8-git-send-email-a.hajda@samsung.com
2017-02-02 15:15:24 +05:30
Andrzej Hajda
2c8fb853c0 drm/bridge/sii8620: initial support for eCBUS-S mode
The Single-ended eCBUS Mode (eCBUS-S) mode provides 60 Mb/s full-duplex
bidirectional traffic for three channels:
 - CBUS data (CBUS1 channel),
 - High-bandwidth MHL data (eMSC channel),
 - tunneling data (T-CBUS channel).
It is required to fully support MHL3 dongles.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-6-git-send-email-a.hajda@samsung.com
2017-02-02 15:15:23 +05:30
Andrzej Hajda
0c2d18756b drm/bridge/sii8620: add continuations to messages
Due to asynchronous nature of MHL flow of execution is dispersed.
Logical continuation of some actions happens after response of peer,
i.e in interrupt handler. To simplify coding continuation mechanism
has been added - it is now possible to provide continuation callback,
which will be called after peer responds to given action.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-5-git-send-email-a.hajda@samsung.com
2017-02-02 15:15:22 +05:30
Andrzej Hajda
e9c6da270a drm/bridge/sii8620: add reading device capability registers
This functionality is necessary to implement MHL3 modes.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-4-git-send-email-a.hajda@samsung.com
2017-02-02 15:15:22 +05:30
Andrzej Hajda
bb4954c77c drm/bridge/sii8620: add MHL3 mode check helper
MHL3 modes differs significantly from MHL1 mode, this helper will be used
frequently to clearly distinguish them.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-3-git-send-email-a.hajda@samsung.com
2017-02-02 15:15:22 +05:30
Andrzej Hajda
dd12312906 drm/bridge/sii8620: simplify MHL3 mode setting
It is not necessary to set REG_COC_CTL0, REG_MHL_COC_CTL1 registers.

Signed-off-by: Andrzej Hajda <a.hajda@samsung.com>
Signed-off-by: Archit Taneja <architt@codeaurora.org>
Link: http://patchwork.freedesktop.org/patch/msgid/1485935272-17337-2-git-send-email-a.hajda@samsung.com
2017-02-02 15:15:21 +05:30
Liviu Dudau
82260364fd drm/etnaviv: Remove duplicate header file include
etnaviv_gem.h header gets included twice. Remove duplicate.

Signed-off-by: Liviu Dudau <liviu@dudau.co.uk>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2017-02-02 10:30:51 +01:00
Lucas Stach
e17d0bf23f Revert "drm/etnaviv: trick drm_mm into giving out a low IOVA"
Now that commandstreams are handled through the cmdbuf suballocator
the workaround to make the IOVA games work is not needed anymore.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
2017-02-02 10:30:43 +01:00
Lucas Stach
e66774dd6f drm/etnaviv: add cmdbuf suballocator
There are 3 big benefits to suballocating a single big DMA buffer
for command submission:

1. Avoid hammering CMA. The old way of allocating and freeing a DMA
   buffer for each submission was hitting some of the real slow
   pathes in CMA, as this allocator was not designed for a concurrent
   small buffers load.

2. Less TLB flushes on IOMMUv2. If a new command buffer is mapped into
   the GPU address space the MMU TLBs need to be flushed. By having
   one big buffer statically mapped to the GPU, a lot of those flushes
   can be avoided.

3. No funky workarounds for GC3000. The FE TLB flush on GC3000 isn't
   reliable. To work around that we tried to lay out the cmdbufs in
   the GPU address space in a way to avoid this issue. This hasn't
   always worked if the address space is crowded. A single statically
   mapped buffer avoids the erratum completely.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
2017-02-02 10:30:37 +01:00
Lucas Stach
9912b4db7b drm/etnaviv: get cmdbuf physical address through the cmdbuf abstraction
Don't allow IOMMUv2 to peek directly into the cmdbuf, but get the
needed PA through a dedicated function.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
2017-02-02 10:30:27 +01:00
Lucas Stach
c3ef4b8c3e drm/etnaviv: wire up iova handling in new cmdbuf abstraction
Don't call the IOMMU directly, but go through the new cmdbuf abstraction.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
2017-02-02 10:30:20 +01:00
Lucas Stach
ea1f5729aa drm/etnaviv: move cmdbuf de-/allocation into own file
This will get more complex with the following changes, so move it
into its own place.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
2017-02-02 10:30:15 +01:00
Lucas Stach
d46450737c drm/etnaviv: always flush MMU TLBs on map/unmap
This ensures that the GPU isn't able to write into already freed
objects, as doing this in the IOVA reaper isn't enough, as the
gem_free_object path will also cause unmaps to happen.

On MMUv2 this also ensures that stale entries, which may have
been prefetched into the TLB will be purged.

The flush is low overhead, as it gets batched up with the next
user command buffer, so this isn't incuring an overhead for
each buffer map/unmap.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
2017-02-02 10:30:08 +01:00
Bhumika Goyal
bc179f08d2 drm/etnaviv: constify etnaviv_iommu_ops structures
Declare etnaviv_iommu_ops structure as const as it is only used when
the reference of one of its field is stored in the ops field of a
iommu_domain structure. This ops field is of type const, so
etnaviv_iommu_ops structures having similar properties can be declared
const too.

Done using Coccinelle.
Before and after size details of .o file remains the same after
cross compiling for arm architecture.

lst: Trimmed commit message, apply the same change to iommu_v2.

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
2017-02-02 10:29:52 +01:00
Gabriel Krisman Bertazi
cbdded7f8a drm: qxl: Embed drm_device into driver structure
This is the recommended way to create the drm_device structure,
according to DRM documentation.

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170127010548.27970-4-krisman@collabora.co.uk
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-02-02 10:02:37 +01:00
Gabriel Krisman Bertazi
d74d74aeaf drm: qxl: Drop duplicated pci_device pointer attribute
qxl_device duplicates the pointer to struct pci_dev, which is not
needed since we already have it in the drm_device structure.  Clean it
up.

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170127010548.27970-3-krisman@collabora.co.uk
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-02-02 10:02:36 +01:00
Gabriel Krisman Bertazi
5472bdee3f drm: qxl: Drop duplicated device pointer attribute
qxl_device duplicates a pointer to struct device, which is not needed
since we already have it in the drm_device structure.  Clean it up.

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170127010548.27970-2-krisman@collabora.co.uk
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-02-02 10:02:34 +01:00
Gabriel Krisman Bertazi
768851b92c drm: qxl: Drop misleading comment
No longer true since commit 07f8d9bdb2 ("drm/qxl: add support for > 1
output").  qxl_num_crtc defaults to 4 and is configurable as a module
parameter.

Signed-off-by: Gabriel Krisman Bertazi <krisman@collabora.co.uk>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20170127010548.27970-1-krisman@collabora.co.uk
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-02-02 10:02:33 +01:00
Max Staudt
1acf566195 drm/bochs: Implement nomodeset
Up until now, the bochsdrm driver didn't handle the nomodeset option
at boot, and didn't provide a "modeset" module option either.

This patch implements both.

The new parameter can be used by specifying bochs-drm.modeset=0
at boot time.

Signed-off-by: Max Staudt <mstaudt@suse.de>
Link: http://patchwork.freedesktop.org/patch/msgid/1484763012-17783-1-git-send-email-mstaudt@suse.de
Cc: Gerd Hoffmann <kraxel@redhat.com>
Cc: David Airlie <airlied@gmail.com>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2017-02-02 10:02:32 +01:00
Maarten Lankhorst
37255d8d3f drm/i915: Fix POWER_DOMAIN_AUDIO refcounting.
If the crtc was brought up with audio before the driver loads,
then crtc_disable will remove a refcount to audio that doesn't exist
before.

Fortunately we already set power domains on readout, so we can just add
the power domain handling to get_crtc_power_domains, which will update
the power domains correctly in all cases.

This was found when testing module reload on CI with the crtc enabled,
which resulted in the following warn after module reload + modeset:

[   24.197041] ------------[ cut here ]------------
[   24.197075] WARNING: CPU: 0 PID: 99 at drivers/gpu/drm/i915/intel_runtime_pm.c:1790 intel_display_power_put+0x134/0x140 [i915]
[   24.197076] Use count on domain AUDIO is already zero
[   24.197098] CPU: 0 PID: 99 Comm: kworker/u8:2 Not tainted 4.9.0-CI-Trybot_393+ #1
[   24.197099] Hardware name:                  /NUC6i5SYB, BIOS SYSKLi35.86A.0042.2016.0409.1246 04/09/2016
[   24.197102] Workqueue: events_unbound async_run_entry_fn
[   24.197105]  ffffc900003c7688 ffffffff81435b35 ffffc900003c76d8 0000000000000000
[   24.197107]  ffffc900003c76c8 ffffffff8107e4d6 000006fe5dc36f28 ffff88025dc30054
[   24.197109]  ffff88025dc36f28 ffff88025dc30000 ffff88025dc30000 0000000000000015
[   24.197110] Call Trace:
[   24.197113]  [<ffffffff81435b35>] dump_stack+0x67/0x92
[   24.197116]  [<ffffffff8107e4d6>] __warn+0xc6/0xe0
[   24.197118]  [<ffffffff8107e53a>] warn_slowpath_fmt+0x4a/0x50
[   24.197149]  [<ffffffffa039b4b4>] intel_display_power_put+0x134/0x140 [i915]
[   24.197187]  [<ffffffffa04217dd>] intel_disable_ddi+0x4d/0x80 [i915]
[   24.197223]  [<ffffffffa03f388f>] intel_encoders_disable.isra.74+0x7f/0x90 [i915]
[   24.197257]  [<ffffffffa03f6c05>] haswell_crtc_disable+0x55/0x170 [i915]
[   24.197292]  [<ffffffffa03fec88>] intel_atomic_commit_tail+0x108/0xfd0 [i915]
[   24.197295]  [<ffffffff810d47c6>] ? __lock_is_held+0x66/0x90
[   24.197330]  [<ffffffffa03fff79>] intel_atomic_commit+0x429/0x560 [i915]
[   24.197332]  [<ffffffff81570186>] ?drm_atomic_add_affected_connectors+0x56/0xf0
[   24.197334]  [<ffffffff8156f726>] drm_atomic_commit+0x46/0x50
[   24.197336]  [<ffffffff81553f87>] restore_fbdev_mode+0x147/0x270
[   24.197337]  [<ffffffff81555bee>] drm_fb_helper_restore_fbdev_mode_unlocked+0x2e/0x70
[   24.197339]  [<ffffffff81555aa8>] drm_fb_helper_set_par+0x28/0x50
[   24.197374]  [<ffffffffa041c7d3>] intel_fbdev_set_par+0x13/0x70 [i915]
[   24.197376]  [<ffffffff8149e07a>] fbcon_init+0x57a/0x600
[   24.197379]  [<ffffffff81514b71>] visual_init+0xd1/0x130
[   24.197381]  [<ffffffff8151603c>] do_bind_con_driver+0x1bc/0x3a0
[   24.197384]  [<ffffffff81516521>] do_take_over_console+0x111/0x180
[   24.197386]  [<ffffffff8149e152>] do_fbcon_takeover+0x52/0xb0
[   24.197387]  [<ffffffff814a12c3>] fbcon_event_notify+0x723/0x850
[   24.197390]  [<ffffffff810a4830>] ?__blocking_notifier_call_chain+0x30/0x70
[   24.197392]  [<ffffffff810a44a4>] notifier_call_chain+0x34/0xa0
[   24.197394]  [<ffffffff810a4848>] __blocking_notifier_call_chain+0x48/0x70
[   24.197397]  [<ffffffff810a4881>] blocking_notifier_call_chain+0x11/0x20
[   24.197398]  [<ffffffff814a4556>] fb_notifier_call_chain+0x16/0x20
[   24.197400]  [<ffffffff814a678c>] register_framebuffer+0x24c/0x330
[   24.197402]  [<ffffffff815558d9>] drm_fb_helper_initial_config+0x219/0x3c0
[   24.197436]  [<ffffffffa041d373>] intel_fbdev_initial_config+0x13/0x30 [i915]
[   24.197438]  [<ffffffff810a5d44>] async_run_entry_fn+0x34/0x140
[   24.197440]  [<ffffffff8109c26c>] process_one_work+0x1ec/0x6b0
[   24.197442]  [<ffffffff8109c1e6>] ? process_one_work+0x166/0x6b0
[   24.197445]  [<ffffffff8109c779>] worker_thread+0x49/0x490
[   24.197447]  [<ffffffff8109c730>] ? process_one_work+0x6b0/0x6b0
[   24.197448]  [<ffffffff810a2a9b>] kthread+0xeb/0x110
[   24.197451]  [<ffffffff810a29b0>] ? kthread_park+0x60/0x60
[   24.197453]  [<ffffffff818241a7>] ret_from_fork+0x27/0x40
[   24.197476] ---[ end trace bda64b683b8e8162 ]---

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1481812185-19098-3-git-send-email-maarten.lankhorst@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2017-02-01 22:05:07 +01:00
Maarten Lankhorst
a667fb402c drm/i915: Disable all crtcs during driver unload, v2.
We may keep the crtc's enabled when userspace unsets all framebuffers but
keeps the crtc active. This exposes a WARN in fbc_global disable, and
a lot of bugs in our hardware readout code. Solve this by disabling
all crtc's for now.

Changes since v1:
- Use lock_all_ctx instead of lock_all.

Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1481812185-19098-4-git-send-email-maarten.lankhorst@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2017-02-01 22:04:37 +01:00
Eric Anholt
4078f57571 drm/vc4: Add DSI driver
The DSI0 and DSI1 blocks on the 2835 are related hardware blocks.
Some registers move around, and the featureset is slightly different,
as DSI1 (the 4-lane DSI) is a later version of the hardware block.
This driver doesn't yet enable DSI0, since we don't have any hardware
to test against, but it does put a lot of the register definitions and
code in place.

v2: Use the clk_hw interfaces, don't set CLK_IS_BASIC (from review by
    Stephen Boyd)

Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch> (v1)
Link: http://patchwork.freedesktop.org/patch/msgid/20170131192912.11316-1-eric@anholt.net
2017-02-01 12:51:23 -08:00
Eric Anholt
a86773d120 drm/vc4: Add support for feeding DSI encoders from the pixel valve.
We have to set a different pixel format, which tells the hardware to
use the pix_width field that's fed in sideband from the DSI encoder to
divide the "pixel" clock.

Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161214194621.16499-6-eric@anholt.net
2017-02-01 12:51:22 -08:00
Eric Anholt
d17a1bb9b8 drm/vc4: Set up SCALER_DISPCTRL at boot.
We want the HVS on, obviously, and we also want DSP3 (PV1's source) to
be muxed from HVS channel 2 like we expect in vc4_crtc.c.  The
firmware wasn't setting the DSP3 mux up when both the LCD and HDMI
were disabled.

Signed-off-by: Eric Anholt <eric@anholt.net>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161214194621.16499-5-eric@anholt.net
2017-02-01 12:51:22 -08:00
Takashi Iwai
969218fee1 drm: Clean up the 1366x768 fixup codes
This is just a cleanup, no functional change.

The fixup code for 1366x768 in drm_mode_create_from_cmdline_mode() is
basically a copy of the existing code in drm_edid.c.  Make the latter
code public so that it can be called from the former function.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: http://patchwork.freedesktop.org/patch/msgid/20170117164329.10551-1-tiwai@suse.de
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
[vsyrjala: include drm_crtc_internal.h to make sparse happy]
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
2017-02-01 19:01:47 +02:00
Chris Wilson
453cfe2171 drm/i915/execlists: Add interrupt-pending check to intel_execlists_idle()
Primarily this serves as a sanity check that the bit has been cleared
before we suspend (and hasn't reappeared after resume).

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Tvrtko Ursulin <tursulin@ursulin.net>
Link: http://patchwork.freedesktop.org/patch/msgid/20170201131222.11882-1-chris@chris-wilson.co.uk
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
2017-02-01 15:23:06 +00:00
Chris Wilson
e2de845e0b drm/i915/execlists: Skip resetting RING_CONTEXT_STATUS_PTR
As we now flag when the GPU signals a context-switch and do not read the
status register before we see that signal, we do not have to ensure that
it is cleared upon reset (and can leave it to the GPU to reset it from
the power context).

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Tvrtko Ursulin <tursulin@ursulin.net>
Link: http://patchwork.freedesktop.org/patch/msgid/20170201125338.12932-1-chris@chris-wilson.co.uk
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
2017-02-01 15:22:38 +00:00
Uma Shankar
1881a4234e drm/i915: Add MIPI_IO WA and program DSI regulators
Enable MIPI IO WA for BXT DSI as per bspec and
program the DSI regulators.

v2: Moved IO enable to pre-enable as per Mika's
review comments. Also reused the existing register
definition for BXT_P_CR_GT_DISP_PWRON.

v3: Added Programming the DSI regulators as per disable/enable
sequences.

v4: Restricting regulator changes to BXT as suggested by
Jani/Mika

v5: Removed redundant read/modify for regulator register as
per Jani's comment. Maintain enable/disable symmetry as per spec.

Signed-off-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Vidya Srinivas <vidya.srinivas@intel.com>
Acked-by: Mika Kahola <mika.kahola@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1485353603-11260-1-git-send-email-vidya.srinivas@intel.com
2017-02-01 16:18:45 +02:00
Chris Wilson
69aeafeae9 drm/i915: Flush untouched framebuffers before display on !llc
On a non-llc system, the objects are created with .cache_level =
CACHE_NONE and so the transition to uncached for scanout is a no-op.
However, if the object was never written to, it will still be in the CPU
domain (having been zeroed out by shmemfs). Those cachelines need to be
flushed prior to display.

Reported-and-tested-by: Vito Caputo
Fixes: a6a7cc4b7d ("drm/i915: Always flush the dirty CPU cache when pinning the scanout")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: <drm-intel-fixes@lists.freedesktop.org> # v4.10-rc1+
Link: http://patchwork.freedesktop.org/patch/msgid/20170109111932.6342-1-chris@chris-wilson.co.uk
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2017-02-01 10:54:17 +00:00
Daniel Vetter
e2b06d71bd Merge remote-tracking branch 'airlied/drm-next' into drm-intel-next-queued
Chris Wilson wants the new fence tracepoint added in

commit 8c96c67801
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Tue Jan 24 11:57:58 2017 +0000

    dma/fence: Export enable-signaling tracepoint for emission by drivers

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2017-02-01 10:58:11 +01:00
Daniel Vetter
45bf86e773 Merge remote-tracking branch 'airlied/drm-next' into drm-misc-next
Backmerge to resync and also so that Ville can apply a cleanup patch
from Takashi.

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
2017-02-01 09:06:26 +01:00
Dave Airlie
18566acac1 Merge branch 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos into drm-next
adding runtime PM support to MIC driver, and including some
cleanups - especially using atomic helper functions
instead of specific ones - and fixups.

* 'exynos-drm-next' of git://git.kernel.org/pub/scm/linux/kernel/git/daeinki/drm-exynos:
  drm/exynos: g2d: prevent integer overflow in
  drm/exynos: fix a timeout loop
  drm/exynos: use atomic helper commit
  drm/exynos: remove unnecessary codes
  drm/exynos: mic: Add runtime PM support
  drm/exynos: Stop using drm_framebuffer_unregister_private
  drm/exynos: mic: Fix parse_dt function
  drm/exynos: mic: Add mode_set callback function
2017-02-01 08:43:42 +10:00
Dave Airlie
02a84c135e Allwinner DRM changes for 4.11
Just one minor fix.
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Merge tag 'sunxi-drm-for-4.11' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into drm-next

Allwinner DRM changes for 4.11

Just one minor fix.

* tag 'sunxi-drm-for-4.11' of https://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux:
  drm/sun4i: Fix a return value in case of error
2017-02-01 08:43:19 +10:00
Dave Airlie
b75e16959c Merge branch 'drm-vmwgfx-next' of git://people.freedesktop.org/~syeh/repos_linux into drm-next
This is to address what we've discussed, moving some of the minor changes
into a drm-next request.

* 'drm-vmwgfx-next' of git://people.freedesktop.org/~syeh/repos_linux:
  drm/vmwgfx: Use kmemdup instead of kmalloc and memcpy
  drm/vmwgfx: Fix depth input into drm_mode_legacy_fb_format
  drm/vmwgfx: Fix a potential integer overflow
  drm/vmwgfx: Clear an uninitialized struct member
  drm/vmwgfx: Annotate ignored return values
  drm/vmwgfx: Clear uninitialized fields of a parameter
2017-02-01 08:40:13 +10:00
Dave Airlie
29a73d906b Merge branch 'drm-next-4.11' of git://people.freedesktop.org/~agd5f/linux into drm-next
This is the main feature pull for radeon and amdgpu for 4.11.  Highlights:
- Power and clockgating improvements
- Preliminary SR-IOV support
- ttm buffer priority support
- ttm eviction fixes
- Removal of the ttm lru callbacks
- Remove SI DPM quirks due to MC firmware issues
- Handle VFCT with multiple vbioses
- Powerplay improvements
- Lots of driver cleanups

* 'drm-next-4.11' of git://people.freedesktop.org/~agd5f/linux: (120 commits)
  drm/amdgpu: fix amdgpu_bo_va_mapping flags
  drm/amdgpu: access stolen VRAM directly on CZ (v2)
  drm/amdgpu: access stolen VRAM directly on KV/KB (v2)
  drm/amdgpu: fix kernel panic when dpm disabled on Kv.
  drm/amdgpu: fix dpm bug on Kv.
  drm/amd/powerplay: fix regresstion issue can't set manual dpm mode.
  drm/amdgpu: handle vfct with multiple vbios images
  drm/radeon: handle vfct with multiple vbios images
  drm/amdgpu: move misc si headers into amdgpu
  drm/amdgpu: remove unused header si_reg.h
  drm/radeon: drop pitcairn dpm quirks
  drm/amdgpu: drop pitcairn dpm quirks
  drm: radeon: radeon_ttm: Handle return NULL error from ioremap_nocache
  drm/amd/amdgpu/amdgpu_ttm: Handle return NULL error from ioremap_nocache
  drm/amdgpu: add new virtual display ID
  drm/amd/amdgpu: remove the uncessary parameter for ib scheduler
  drm/amdgpu: Bring bo creation in line with radeon driver (v2)
  drm/amd/powerplay: fix misspelling in header guard
  drm/ttm: revert "add optional LRU removal callback v2"
  drm/ttm: revert "implement LRU add callbacks v2"
  ...
2017-02-01 08:39:35 +10:00
Dave Airlie
012bbe28c0 Merge tag 'drm-misc-next-2017-01-30' of git://anongit.freedesktop.org/git/drm-misc into drm-next
Another round of -misc stuff:
- Noralf debugfs cleanup cleanup (not yet everything, some more driver
  patches awaiting acks).
- More doc work.
- edid/infoframe fixes from Ville.
- misc 1-patch fixes all over, as usual

Noralf needs this for his tinydrm pull request.

* tag 'drm-misc-next-2017-01-30' of git://anongit.freedesktop.org/git/drm-misc: (48 commits)
  drm/vc4: Remove vc4_debugfs_cleanup()
  dma/fence: Export enable-signaling tracepoint for emission by drivers
  drm/tilcdc: Remove tilcdc_debugfs_cleanup()
  drm/tegra: Remove tegra_debugfs_cleanup()
  drm/sti: Remove drm_debugfs_remove_files() calls
  drm/radeon: Remove drm_debugfs_remove_files() call
  drm/omap: Remove omap_debugfs_cleanup()
  drm/hdlcd: Remove hdlcd_debugfs_cleanup()
  drm/etnaviv: Remove etnaviv_debugfs_cleanup()
  drm/etnaviv: allow build with COMPILE_TEST
  drm/amd/amdgpu: Remove drm_debugfs_remove_files() call
  drm/prime: Clarify DMA-BUF/GEM Object lifetime
  drm/ttm: Make sure BOs being swapped out are cacheable
  drm/atomic: Remove drm_atomic_debugfs_cleanup()
  drm: drm_minor_register(): Clean up debugfs on failure
  drm: debugfs: Remove all files automatically on cleanup
  drm/fourcc: add vivante tiled layout format modifiers
  drm/edid: Set YQ bits in the AVI infoframe according to CEA-861-F
  drm/edid: Set AVI infoframe Q even when QS=0
  drm/edid: Introduce drm_hdmi_avi_infoframe_quant_range()
  ...
2017-02-01 08:31:09 +10:00
Dave Airlie
bb7e983341 Contains a single patch to create the fbdev at driver's registration
time instead of waiting for the connector status change.
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Merge tag 'drm/atmel-hlcdc/for-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/bbrezillon/linux into drm-next

Contains a single patch to create the fbdev at driver's registration
time instead of waiting for the connector status change.

* tag 'drm/atmel-hlcdc/for-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/bbrezillon/linux:
  drm/atmel-hlcdc: Rework the fbdev creation logic
2017-02-01 08:30:19 +10:00
Dave Airlie
3a5e6bb9c6 ZTE DRM driver updates for 4.11:
- Add missing selection of VIDEOMODE_HELPERS in Kconfig, since ZTE DRM
    driver uses drm_display_mode_to_videomode().
  - Enable HDMI audio support through SPDIF interface based on generic
    hdmi-audio-codec driver.
  - Enable VOU VL (Video Layer) to support overlay plane with scaling
    function.
  - Refine zx_vou driver a bit and then add TV Encoder output device
    support.
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Merge tag 'zxdrm-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into drm-next

ZTE DRM driver updates for 4.11:
 - Add missing selection of VIDEOMODE_HELPERS in Kconfig, since ZTE DRM
   driver uses drm_display_mode_to_videomode().
 - Enable HDMI audio support through SPDIF interface based on generic
   hdmi-audio-codec driver.
 - Enable VOU VL (Video Layer) to support overlay plane with scaling
   function.
 - Refine zx_vou driver a bit and then add TV Encoder output device
   support.

[airlied: fixup plane format change]

* tag 'zxdrm-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux:
  drm: zte: add tvenc driver support
  dt: add bindings for ZTE tvenc device
  drm: zte: add function to configure vou_ctrl dividers
  drm: zte: move struct vou_inf into zx_vou driver
  drm: zte: add interlace mode support
  drm: zte: add overlay plane support
  drm: zte: add .atomic_disable hook to disable graphic layer
  drm: zte: make zx_plane accessible from zx_vou driver
  drm: zte: support hdmi audio through spdif
  drm: zte: select VIDEOMODE_HELPERS in Kconfig
2017-02-01 08:29:04 +10:00
Dave Airlie
2643105558 Merge branch 'drm-intel-next' of git://anongit.freedesktop.org/git/drm-intel into drm-next
Updated pull request after I pulled first time :)

* 'drm-intel-next' of git://anongit.freedesktop.org/git/drm-intel:
  drm/i915: Pevent copying uninitialised garbage into vma->ggtt_view
2017-02-01 08:26:02 +10:00