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Now that we use the AUX and GMBUS assignment from VBT for all ports,
let's clean up the sanitization of the port information a bit.
Previosuly we only did this for port E, and only complained about a
non-standard assignment for the other ports. But as we know that
non-standard assignments are a fact of life, let's expand the
sanitization to all the ports.
v2: Include a commit message, fix up the comments a bit
v3: Don't clobber other ports if the current port has no alternate aux ch/ddc pin
Cc: stable@vger.kernel.org
Cc: Maarten Maathuis <madman2003@gmail.com>
Tested-by: Maarten Maathuis <madman2003@gmail.com>
References: https://bugs.freedesktop.org/show_bug.cgi?id=97877
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1476208368-5710-4-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Jim Bride <jim.bride@linux.intel.com> (v2)
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The VBT provides the platform a way to mix and match the DDI ports vs.
GMBUS pins. Currently we only trust the VBT for DDI E, which I suppose
has no standard GMBUS pin assignment. However, there are machines out
there that use a non-standard mapping for the other ports as well.
Let's start trusting the VBT on this one for all ports on DDI platforms.
I've structured the code such that other platforms could easily start
using this as well, by simply filling in the ddi_port_info. IIRC there
may be CHV system that might actually need this.
v2: Include a commit message, include a debug message during init
Cc: stable@vger.kernel.org
Cc: Maarten Maathuis <madman2003@gmail.com>
Tested-by: Maarten Maathuis <madman2003@gmail.com>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97877
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1476208368-5710-3-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Jim Bride <jim.bride@linux.intel.com>
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The VBT provides the platform a way to mix and match the DDI ports vs.
AUX channels. Currently we only trust the VBT for DDI E, which has no
corresponding AUX channel of its own. However it is possible that some
board might use some non-standard DDI vs. AUX port routing even for
the other ports. Perhaps for signal routing reasons or something,
So let's generalize this and trust the VBT for all ports.
For now we'll limit this to DDI platforms, as we trust the VBT a bit
more there anyway when it comes to the DDI ports. I've structured
the code in a way that would allow us to easily expand this to
other platforms as well, by simply filling in the ddi_port_info.
v2: Drop whitespace changes, keep MISSING_CASE() for unknown
aux ch assignment, include a commit message, include debug
message during init
Cc: stable@vger.kernel.org
Cc: Maarten Maathuis <madman2003@gmail.com>
Tested-by: Maarten Maathuis <madman2003@gmail.com>
References: https://bugs.freedesktop.org/show_bug.cgi?id=97877
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1476208368-5710-2-git-send-email-ville.syrjala@linux.intel.com
Reviewed-by: Jim Bride <jim.bride@linux.intel.com>
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Dropping WA because it was for early steppings.
It is fixed in newer preproduction and all production revisions.
v2: add references, updated commit message
References: HSD#2126385, HSD#2131381, BSID#0764
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michal Winiarski <michal.winiarski@intel.com>
Signed-off-by: Arkadiusz Hiler <arkadiusz.hiler@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1476977460-28088-1-git-send-email-arkadiusz.hiler@intel.com
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2 more patches to stabilize the new MMUv2 support.
* 'drm-etnaviv-fixes' of git://git.pengutronix.de/lst/linux:
drm/etnaviv: block 64K of address space behind each cmdstream
drm/etnaviv: ensure write caches are flushed at end of user cmdstream
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vmwgfx cleanups and fixes.
* 'drm-vmwgfx-fixes' of ssh://people.freedesktop.org/~syeh/repos_linux:
drm/vmwgfx: Adjust checks for null pointers in 13 functions
drm/vmwgfx: Use memdup_user() rather than duplicating its implementation
drm/vmwgfx: Use kmalloc_array() in vmw_surface_define_ioctl()
drm/vmwgfx: Avoid validating views on view destruction
drm/vmwgfx: Limit the user-space command buffer size
drm/vmwgfx: Remove a leftover debug printout
drm/vmwgfx: Allow resource relocations on byte boundaries
drm/vmwgfx: Enable SVGA_3D_CMD_DX_TRANSFER_FROM_BUFFER command
drm/vmwgfx: Remove call to reservation_object_test_signaled_rcu before wait
drm/vmwgfx: Replace numeric parameter like 0444 with macro
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One small fix for Armada, where the clock prepare/enable counts were
going awry.
* 'drm-armada-fixes' of git://git.armlinux.org.uk/~rmk/linux-arm:
drm/armada: fix clock counts
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This are some fixes which I hoped to still get into v4.9. I used to
test them here since about 2 weeks and Meng came around to test it
on the second platform making use of this IP too, so they are well
tested now.
* 'fixes-for-v4.9-rc2' of http://git.agner.ch/git/linux-drm-fsl-dcu:
drm/fsl-dcu: enable pixel clock when enabling CRTC
drm/fsl-dcu: do not transfer registers in mode_set_nofb
drm/fsl-dcu: do not transfer registers on plane init
drm/fsl-dcu: enable TCON bypass mode by default
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According to spec: "KBL re-uses SKL values, except where
specific KBL values are listed."
And recently spec has changed adding different table for Display Port only.
But for all SKUs (H,S,U,Y) we have slightly different values.
v2: Fix wrong condition spotted by Jani.
v3: Fix 7th entry of KBL H and S table - by Manasi.
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1476806256-13318-1-git-send-email-rodrigo.vivi@intel.com
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No functional change.
Only moving this fixup block out of ddi_translation definitions
so we can split skl and kbl cleanly.
v2: Remove useless comment. (Ville)
Cc: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1475258757-29540-1-git-send-email-rodrigo.vivi@intel.com
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The A31's display pipeline has 2 frontends, 2 backends, and 2 TCONs. It
also has new display enhancement blocks, such as the DRC (Dynamic Range
Controller), the DEU (Display Enhancement Unit), and the CMU (Color
Management Unit). It supports HDMI, MIPI DSI, and 2 LCD/LVDS channels.
The A31s display pipeline is almost the same, just without MIPI DSI.
Only the TCON seems to be different, due to the missing mux for MIPI
DSI.
Add compatible strings for both of them.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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The A31 TCON has mux controls for how TCON outputs are routed to the
HDMI and MIPI DSI blocks.
Since the A31s does not have MIPI DSI, it only has a mux for the HDMI
controller input.
This patch only adds support for the compatible strings. Actual support
for the mux controls should be added with HDMI and MIPI DSI support.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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We already have some differences between the 2 supported SoCs.
More will be added as we support other SoCs. To avoid bloating
the probe function with even more conditionals, move the quirks
to a separate data structure that's tied to the compatible string.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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The A31 and A31s also have the DRC as part of the display pipeline.
As we know virtually nothing about them, just add compatible strings
for both SoCs to the stub driver.
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Maxime Ripard <maxime.ripard@free-electrons.com>
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gvt-next-fix-2016-10-20
This contains fix for first pull request.
- clean up header mess between i915 core and gvt
- new MAINTAINERS item
- new kernel-doc section
- fix compiling warnings
- gvt gem fix series from Chris
- fix for i915 intel_engine_cs change
- some sparse fixes from Changbin
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
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If the kernel is old, more than a few releases old, chances are that the
user is using an old kernel for a good reason, despite there being GPU
hangs. After 180days since driver release stop suggesting that they
should send those reports upstream.
[Since Daniel acked this I expect he will pick up the dim patch to
automatically update the DRIVER_TIMESTAMP everytime we tag a new
release.]
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161014134428.29582-1-chris@chris-wilson.co.uk
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
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If we want to stop resetting the IPU in the future, masking all
interrupts before registering the irq handlers will not be enough to
avoid spurious interrupts. We also have to clear them.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Liu Ying <gnuiyl@gmail.com>
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Hook up support for DRM_FORMAT_YUV422, DRM_FORMAT_YVU422,
DRM_FORMAT_YUV444, DRM_FORMAT_YVU444, DRM_FORMAT_NV12,
and DRM_FORMAT_NV16.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Liu Ying <gnuiyl@gmail.com>
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The IDMAC does support reading and writing DRM_FORMAT_YUV444 and
DRM_FORMAT_YVU444.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Liu Ying <gnuiyl@gmail.com>
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ipu_cpmem_set_yuv_planar_full is only used directly, remove the wrapper.
Suggested-by: Liu Ying <gnuiyl@gmail.com>
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Liu Ying <gnuiyl@gmail.com>
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To support 4:2:2 or 4:4:4 chroma subsampling, divide the x/y offsets in
drm_plane_state_to_ubo/vbo only if necessary for the given pixel format.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Liu Ying <gnuiyl@gmail.com>
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ipu_plane_atomic_set_base is called from ipu_plane_atomic_update in two
different places, depending on whether drm_atomic_crtc_needs_modeset is
true. Also depending on the same condition, this function does two
different things.
This patch removes the indirection by merging the relevant parts into
ipu_plane_atomic_update, making the actual code flow more obvious as a
result. Also remove the duplicate planar format comment, which is
already found in ipu_plane_atomic_check.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Liu Ying <gnuiyl@gmail.com>
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If the framebuffer pixel format is planar YUV and unchanged, but the U
or V plane offsets change, do not return an error, but request a modeset
instead.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Liu Ying <gnuiyl@gmail.com>
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Without this patch, after enabling the overlay plane with an RGBA
framebuffer, switching to a framebuffer without alpha channel would
cause the plane to vanish, since the pixel local alpha is constant
zero in that case. Disable local alpha again when setting an opaque
framebuffer.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
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Odd x/y offsets are not allowed for horizontally/vertically chroma
subsampled planar YUV formats.
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Acked-by: Liu Ying <gnuiyl@gmail.com>
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As we already capture all the information from the registers into the
error-state, also dumping that to dmesg just generates noise that upsets
CI and users alike (and doesn't provide us with any more information).
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20161019125203.28851-1-chris@chris-wilson.co.uk
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
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Function create_scratch_page() may fail in some cases.
Signed-off-by: Du, Changbin <changbin.du@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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The function return values should has type int if it return
a integer value.
Signed-off-by: Du, Changbin <changbin.du@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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Mark all local functions & variables as static.
Signed-off-by: Du, Changbin <changbin.du@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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Add proper __iomem annotation for pointers obtained via ioremap().
Signed-off-by: Du, Changbin <changbin.du@intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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Switch to use new for_each_engine() helper to properly access
enabled intel_engine_cs as i915 core has changed that to be
dynamic managed. At GVT-g init time would still depend on ring
mask to determine engine list as it's earlier.
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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This code was removed from i915_cmd_parser.c but still an obsolete
version wound up being duplicated into gvt/cmd_parser.c. Good riddance.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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We have the ability to map an object, so use it rather than opencode it
badly. Note that the object remains permanently pinned, this is poor
practise.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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We have the ability to map an object, so use it rather than opencode it
badly.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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For whatever reason, the gvt scheduler runs synchronously. At the very
least, lets run synchronously without holding the struct_mutex.
v2: cut'n'paste mutex_lock instead of unlock.
Replace long hold of struct_mutex with a mutex to serialise the worker
threads.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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The kthread will not be interrupted, don't even bother checking.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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The workload took a pointer to the request, and even waited upon,
without holding a reference on the request. Take that reference
explicitly and fix up the error path following request allocation that
missed flushing the request.
v2: [zhenyuw]
- drop request put in error path for dispatch, as main thread
caller will handle it identically to a real request.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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Unpinning the pages prior to the object being release from the GPU may
allow the GPU to read and write into system pages (i.e. use after free
by the hw).
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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The purpose of returning the just-pinned VMA is so that we can use the
information within, like its address. Also it should be tracked and used
as the cookie to unpin...
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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On failure from i915_gem_object_create(), we need to check for an error
pointer not NULL.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Zhenyu Wang <zhenyuw@linux.intel.com>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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Manipulating the fence_list requires the runtime wakelock, as does
writing to the fence registers. Acquire a wakelock for the former, and
assert that the device is awake for the latter.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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Update with brief overview and reference for more detailed
arch design documents.
Add new section for Intel GVT-g host support.
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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Don't use obsolete drm_gem_object_unreference() but switch to i915_gem_object_put().
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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i915 core should only call functions and structures exposed through
intel_gvt.h. Remove internal gvt.h and i915_pvinfo.h.
Change for internal intel_gvt structure as private handler which
not requires to expose gvt internal structure for i915 core.
v2: Fix per Chris's comment
- carefully handle dev_priv->gvt assignment
- add necessary bracket for macro helper
- forward declartion struct intel_gvt
- keep free operation within same file handling alloc
v3: fix use after free and remove intel_gvt.initialized
v4: change to_gvt() to an inline
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
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In the error path, we have to be ready to handle an error before either
the state or restore_state have been allocated.
[ 397.001342] BUG: unable to handle kernel NULL pointer dereference at (null)
[ 397.001419] IP: [<ffffffffa04347b4>] intel_get_load_detect_pipe+0xe4/0x610 [i915]
[ 397.001502] PGD 136a2a067
[ 397.001523] PUD 134b5f067
[ 397.001546] PMD 0
[ 397.001569] Oops: 0002 [#1] PREEMPT SMP
[ 397.001599] Modules linked in: snd_hda_intel i915 cdc_ncm usbnet mii x86_pkg_temp_thermal intel_powerclamp coretemp crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec snd_hwdep snd_hda_core snd_pcm lpc_ich mei_me mei sdhci_pci sdhci mmc_core e1000e ptp pps_core [last unloaded: i915]
[ 397.001902] CPU: 1 PID: 9287 Comm: kms_force_conne Tainted: G U 4.9.0-rc1-CI-CI_DRM_1730+ #1
[ 397.001965] Hardware name: LENOVO 2356GCG/2356GCG, BIOS G7ET31WW (1.13 ) 07/02/2012
[ 397.002017] task: ffff880138c38040 task.stack: ffffc900083e4000
[ 397.002057] RIP: 0010:[<ffffffffa04347b4>] [<ffffffffa04347b4>] intel_get_load_detect_pipe+0xe4/0x610 [i915]
[ 397.002153] RSP: 0018:ffffc900083e7ae8 EFLAGS: 00010286
[ 397.002191] RAX: 00000000ffffffdd RBX: ffffc900083e7bc8 RCX: 0000000000000006
[ 397.002239] RDX: 0000000000000006 RSI: ffff880138c388b8 RDI: ffffc900083e79e0
[ 397.002287] RBP: ffffc900083e7b78 R08: 0000000000000000 R09: 0000000000000000
[ 397.002335] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[ 397.002386] R13: ffff8801305e1158 R14: 00000000ffffffdd R15: 0000000000000000
[ 397.002434] FS: 00007fea1b03c740(0000) GS:ffff88013e240000(0000) knlGS:0000000000000000
[ 397.002488] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 397.002528] CR2: 0000000000000000 CR3: 00000001361da000 CR4: 00000000001406e0
[ 397.002576] Stack:
[ 397.002592] ffff88013046f180 0000000000000000 ffffc900083e7bc0 0000000000000000
[ 397.002655] 0000000000000000 ffff8801306bd038 ffff88012e980000 ffffc90000000001
[ 397.002718] ffffc90000000000 ffff880136b8ca88 ffff88012e980890 ffff88012e980540
[ 397.002780] Call Trace:
[ 397.002828] [<ffffffffa044e8c4>] intel_crt_detect+0x3c4/0x8f0 [i915]
[ 397.002876] [<ffffffff810e37fa>] ? vprintk_default+0x1a/0x20
[ 397.002918] [<ffffffff8116eb68>] ? printk+0x43/0x4b
[ 397.002956] [<ffffffff81546b06>] drm_helper_probe_single_connector_modes+0x406/0x4f0
[ 397.003014] [<ffffffff81819c09>] ? mutex_unlock+0x9/0x10
[ 397.003054] [<ffffffff815723dc>] drm_mode_getconnector+0x33c/0x3c0
[ 397.003099] [<ffffffff810ed59d>] ? debug_lockdep_rcu_enabled+0x1d/0x20
[ 397.003147] [<ffffffff811a6bae>] ? __might_fault+0x3e/0x90
[ 397.003191] [<ffffffff8155aaf6>] drm_ioctl+0x1f6/0x480
[ 397.003231] [<ffffffff815720a0>] ? drm_mode_connector_property_set_ioctl+0x30/0x30
[ 397.003285] [<ffffffff8120308e>] do_vfs_ioctl+0x8e/0x690
[ 397.003324] [<ffffffff810a102c>] ? task_work_run+0x8c/0xb0
[ 397.003366] [<ffffffff810d6d92>] ? trace_hardirqs_on_caller+0x122/0x1b0
[ 397.003412] [<ffffffff812036cc>] SyS_ioctl+0x3c/0x70
[ 397.003451] [<ffffffff8181df2e>] entry_SYSCALL_64_fastpath+0x1c/0xb1
[ 397.003496] Code: 85 c0 41 89 c6 75 57 49 8b 85 f0 00 00 00 48 89 de 45 31 ff 48 8d 78 20 e8 1a 89 13 e1 45 31 c9 85 c0 41 89 c6 0f 84 2f 01 00 00 <f0> 41 83 29 01 74 53 f0 41 83 2f 01 74 2d 41 83 fe dd 75 35 48
[ 397.003837] RIP [<ffffffffa04347b4>] intel_get_load_detect_pipe+0xe4/0x610 [i915]
[ 397.003921] RSP <ffffc900083e7ae8>
[ 397.003947] CR2: 0000000000000000
Testcase: igt/kms_force_connector_basic/force-load-detect # ivb-3720m
Fixes: 0853695c3ba4 ("drm: Add reference counting to drm_atomic_state"
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161019113743.19847-1-chris@chris-wilson.co.uk
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If fbdev emulation is not in use (or not built-in), fb_helper.fbdev
is NULL. Don't call calling drm_fbdev_cma_defio_fini in this case.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/20161020003221.2941-2-stefan@agner.ch
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The pixel clock should not be on if the CRTC is not in use, hence
move clock enable/disable calls into CRTC callbacks.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Tested-By: Meng Yi <meng.yi@nxp.com>
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Do not schedule a transfer of mode settings early. Modes should
get applied on on CRTC enable where we also enable the pixel clock.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Tested-By: Meng Yi <meng.yi@nxp.com>
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There is no need to explicitly initiate a register transfer and
turn off the DCU after initializing the plane registers. In fact,
this is harmful and leads to unnecessary flickers if the DCU has
been left on by the bootloader.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Tested-By: Meng Yi <meng.yi@nxp.com>
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Do not use encoder disable/enable callbacks to control bypass
mode as this seems to mess with the signals not liked by
displays. This also makes more sense since the encoder is
already defined to be parallel RGB/LVDS at creation time.
Signed-off-by: Stefan Agner <stefan@agner.ch>
Tested-By: Meng Yi <meng.yi@nxp.com>
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Ville Syrjälä
Arkadiusz Hiler
Dave Airlie
Rodrigo Vivi
Chen-Yu Tsai
Daniel Vetter
Chris Wilson
Philipp Zabel
Du, Changbin
Zhenyu Wang
Stefan Agner