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2014-06-11drm/i915: Avoid div-by-zero when pixel_multiplier is zeroVille Syrjälä1-1/+3
On certain platforms pixel_multiplier is read out in .get_pipe_config(), but it also gets used to calculate the pixel clock in intel_sdvo_get_config(). If the pipe is disable but some SDVO outputs are active, we may end up dividing by zero in intel_sdvo_get_config(). To avoid the problem simply check for zero pixel_multiplier and skip the division. Another attempt at fixing this involved populating pixel_multiplier to 1 even for disabled pipes, but that triggered a WARN because SDVO_CMD_GET_CLOCK_RATE_MULT command failed and thus encoder_pixel_multiplier was left at zero and didn't match pipe_config->pixel_multiplier. The "divide by pixel_multiplier" operation got introduced here: commit 18442d08786472c63a0a80c27f92b033dffc26de Author: Ville Syrjälä <ville.syrjala@linux.intel.com> Date: Fri Sep 13 16:00:08 2013 +0300 drm/i915: Fix port_clock and adjusted_mode.clock readout all over and it has caused a regression on certain machines since they would hit the div-by-zero during resume. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=76520 Cc: <stable@vger.kernel.org> # 3.13+ Tested-by: Tim Richardson <tim@tim-richardson.net> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2014-06-11drm/i915: Disable FBC by default also on Haswell and laterChris Wilson1-2/+1
It causes black screen on bootup and is approximately 100x slower than running with FBC disabled, so the GPU runs at a high frequency for much longer - completely contrary to the power saving claims. It also still has mutex deadlocks in multi-head scenarios, which can lead to a system/X lockup. These bugs were known before FBC was enabled by default on Haswell and still have not been fixed. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=79716 Reported-and-tested-by: Jon Kristensen <info@jonkri.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: stable@vger.kernel.org [Jani: update subject to reflect the actual change] Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2014-06-11Merge branch 'drm-nouveau-next' of ↵Dave Airlie90-1486/+3346
git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-next display rework fixes lots of displayport issues. * 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6: (43 commits) drm/nouveau/disp/dp: fix tmds passthrough on dp connector drm/nouveau/dp: probe dpcd to determine connectedness drm/nv50-: trigger update after all connectors disabled drm/nv50-: prepare for attaching a SOR to multiple heads drm/gf119-/disp: fix debug output on update failure drm/nouveau/disp/dp: make use of postcursor when its available drm/g94-/disp/dp: take max pullup value across all lanes drm/nouveau/bios/dp: parse lane postcursor data drm/nouveau/dp: fix support for dpms drm/nouveau: register a drm_dp_aux channel for each dp connector drm/g94-/disp: add method to power-off dp lanes drm/nouveau/disp/dp: maintain link in response to hpd signal drm/g94-/disp: bash and wait for something after changing lane power regs drm/nouveau/disp/dp: split link config/power into two steps drm/nv50/disp: train PIOR-attached DP from second supervisor drm/nouveau/disp/dp: make use of existing output data for link training drm/gf119/disp: start removing direct vbios parsing from supervisor drm/nv50/disp: start removing direct vbios parsing from supervisor drm/nouveau/disp/dp: maintain receiver caps in response to hpd signal drm/nouveau/disp/dp: create subclass for dp outputs ...
2014-06-11drm/nouveau/disp/dp: fix tmds passthrough on dp connectorBen Skeggs2-10/+54
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/nouveau/dp: probe dpcd to determine connectednessBen Skeggs3-40/+26
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/nv50-: trigger update after all connectors disabledBen Skeggs1-0/+1
We were sending the necessary state changes to unset the mode, but never actually hit the big GO button unless another modeset happens afterwards. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/nv50-: prepare for attaching a SOR to multiple headsBen Skeggs3-42/+46
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/gf119-/disp: fix debug output on update failureBen Skeggs1-3/+3
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/nouveau/disp/dp: make use of postcursor when its availableBen Skeggs1-8/+18
And at the same time, obey the spec better wrt out-of-range requests. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/g94-/disp/dp: take max pullup value across all lanesBen Skeggs2-2/+6
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/nouveau/bios/dp: parse lane postcursor dataBen Skeggs4-24/+27
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/nouveau/dp: fix support for dpmsBen Skeggs2-4/+50
SOR_PWR has no effect to power-off DP links, unlike other SOR protocols. Instead, on the source side, we cut power to the lanes after having put the sink into D3. Link training takes care of everything required to bring it back again. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/nouveau: register a drm_dp_aux channel for each dp connectorBen Skeggs2-3/+55
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/g94-/disp: add method to power-off dp lanesBen Skeggs5-0/+35
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/nouveau/disp/dp: maintain link in response to hpd signalBen Skeggs6-12/+125
This previously worked for the most part due to userspace doing a modeset in response to HPD interrupts. This will allow us to properly handle cases where sync is lost for other reasons, or if userspace isn't caring. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/g94-/disp: bash and wait for something after changing lane power regsBen Skeggs1-0/+3
Some kind of update? Needed to make the power-down take effect at least. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/nouveau/disp/dp: split link config/power into two stepsBen Skeggs6-12/+29
We want to be able to power down the lanes for DPMS off. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/nv50/disp: train PIOR-attached DP from second supervisorBen Skeggs1-21/+11
Same place as for SOR, between detach and attach phases. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/nouveau/disp/dp: make use of existing output data for link trainingBen Skeggs16-248/+133
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/gf119/disp: start removing direct vbios parsing from supervisorBen Skeggs1-75/+83
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/nv50/disp: start removing direct vbios parsing from supervisorBen Skeggs1-107/+116
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/nouveau/disp/dp: maintain receiver caps in response to hpd signalBen Skeggs2-8/+68
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/nouveau/disp/dp: create subclass for dp outputsBen Skeggs16-9/+265
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/nouveau: use connector events for HPD instead of GPIO watchingBen Skeggs3-44/+34
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/nouveau/disp: add internal representaion of output paths and connectorsBen Skeggs10-2/+619
This will, at some point, be used to replace various bits and pieces of code doing direct bios parsing. For now, it'll just be used for some DP improvements. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/nouveau/bios: extend connector table parsingBen Skeggs4-16/+79
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/nouveau/disp: nothing to see hereBen Skeggs3-21/+42
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/nouveau/i2c/anx9805: add debugging to aux transactionsBen Skeggs2-5/+34
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/nouveau/i2c: introduce locking at a per-port levelBen Skeggs14-34/+380
There's also provisions to allow a pad to be locked with a specific routing, for an indefinite period of time. This will be used in future patches. The G94+ pad driver will now also power-down pads when not required. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/nouveau/i2c: balance port acquire/releaseBen Skeggs4-14/+56
This was a half-finished hack before, just enough to handle the shared aux/i2c pad thing on G94 and up. We got lucky with locking etc up until now, as this was (generally) all protected by the DRM mode_config lock. It's about to become a lot more likely to hit the races. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/gk104/i2c: add aux channel interrupt driverBen Skeggs6-6/+79
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/g94/i2c: add aux channel interrupt driverBen Skeggs3-0/+39
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/nouveau/i2c: add interfaces to support handling aux channel interruptsBen Skeggs4-0/+94
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/nouveau/i2c: start hiding subdev-internal interfacesBen Skeggs21-236/+194
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/nouveau/i2c: remove unnecessary i2c_set_adapdata()Ben Skeggs1-2/+0
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/nouveau/i2c: properly hand aux reply back to caller, and only retry on deferBen Skeggs4-14/+20
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/nv50-/mc: also pass PMGR interrupts onto I2C subdevBen Skeggs3-3/+6
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/nouveau/gpio: send separate event types for high/low transitionsBen Skeggs4-14/+17
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/nouveau/gpio: use base constructor for all implementationsBen Skeggs8-119/+47
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/nouveau/gpio: move on-reset intr disable-and-ack to common codeBen Skeggs7-138/+80
Re-uses the implementation's accessor functions rather than requiring and init/fini implementation for each chipset. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/nouveau/gpio: split "toggled" interrupt into "went high" / "went low"Ben Skeggs7-114/+156
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/nouveau/gpio: split g92 class from nv50Ben Skeggs11-58/+110
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/nouveau/gpio: use indirect pointer to base class definitionBen Skeggs13-75/+75
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/nouveau/disp/dp: support training to highest rate, rather than a targetBen Skeggs1-23/+34
We really want this for, at least, MST devices. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/nouveau/disp/dp: support postcursor in link trainingBen Skeggs2-11/+53
Not enabled at the backends yet, but will read status and send back max reached at level 0. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11drm/nouveau/core: allow event source to handle multiple event types per indexBen Skeggs21-77/+112
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2014-06-11Merge branch 'topic/ipu-destaging' of git://git.pengutronix.de/git/pza/linux ↵Dave Airlie18-29/+216
into drm-next Destage IPUv3 * 'topic/ipu-destaging' of git://git.pengutronix.de/git/pza/linux: gpu: ipu-v3: Register the CSI modules gpu: ipu-v3: Add CSI and SMFC module enable wrappers gpu: ipu-v3: Add ipu_idmac_get_current_buffer function gpu: ipu-v3: Add SMFC code gpu: ipu-v3: Move i.MX IPUv3 core driver out of staging
2014-06-10Merge branch 'drm-nouveau-next' of ↵Dave Airlie48-122/+687
git://anongit.freedesktop.org/git/nouveau/linux-2.6 into drm-next There's really not a great deal this time due to me spending most of this window on Maxwell. But, here's the random bits and pieces that's currently queued. * 'drm-nouveau-next' of git://anongit.freedesktop.org/git/nouveau/linux-2.6: (25 commits) drm/gk208/gr: add missing registers to grctx init drm/nouveau/kms/nv04-nv40: fix pageflip events via special case. drm/nv50-/mc: fix kms pageflip events by reordering irq handling order. drm/nouveau/disp/nv04-nv40: abort scanoutpos query on vga analog. drm/nv50-/kms: wait for enough ring space in crtc_prepare() drm/nouveau/disp/dp: support training pattern 3 drm/nouveau/disp/dp: support aux read interval during link training drm/gk104/gpio: fix incorrect interrupt register usage drm/nouveau/core: punt all object state change messages to trace level drm/nouveau/clk: allow end-user reclocking for nv40, nvaa, and nve0 clock types drm/nouveau/fb: default NvMemExec to on, turning it off is used for debugging only drm/nouveau/bios: fix a potential NULL deref in the PROM shadowing function drm/nouveau/i2c: bump the i2c delay for the adt7473 drm/nouveau/therm/fan/tach: default to 2 pulses per revolution drm/nvf0/device: enable video decoding engines on gk110/gk208 drm/nvf1/device: add support for 0xf1 (gk110b) drm/nouveau/device: support for probing GK20A drm/nouveau/graph: add GK20A support drm/nouveau/graph: pad firmware code at load time drm/nouveau/graph: enable when using external fw ...
2014-06-10drm/gk208/gr: add missing registers to grctx initIlia Mirkin1-0/+2
This fixes hangs on GK208 which happen instantaneously on trying to use a geometry shader. Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Cc: stable@vger.kernel.org # v3.14+
2014-06-10drm/nouveau/kms/nv04-nv40: fix pageflip events via special case.Mario Kleiner1-2/+8
Cards with nv04 display engine can't reliably use vblank counts and timestamps computed via drm_handle_vblank(), as the function gets invoked after sending the pageflip events. Fix this by defaulting to the old crtcid = -1 fallback path on <= NV-50 cards, and only using the precise path on NV-50 and later. Signed-off-by: Mario Kleiner <mario.kleiner.de@gmail.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Cc: <stable@vger.kernel.org> # 3.13+
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