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2017-02-17drm/i915: Break i915_spin_request() if we see an interruptChris Wilson1-1/+11
If an interrupt has been posted, and we were spinning on the active seqno waiting for it to advance but it did not, then we can expect that it will not see its advance in the immediate future and should call into the irq-seqno barrier. We can stop spinning at this point, and leave the difficulty of handling the coherency to the caller. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Mika Kuoppala <mika.kuoppala@linux.intel.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170217151304.16665-3-chris@chris-wilson.co.uk
2017-02-17drm/i915: Postpone fake breadcrumb interrupt until real interrupts ceaseChris Wilson3-14/+12
When the timer expires for checking on interrupt processing, check to see if any interrupts arrived within the last time period. If real interrupts are still being delivered, we can be reassured that we haven't missed the final interrupt as the waiter will still be woken. Only once all activity ceases, do we have to worry about the waiter never being woken and so need to install a timer to kick the waiter for a slow arrival of a seqno. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170217151304.16665-2-chris@chris-wilson.co.uk
2017-02-17drm/i915/glk: Enable pipe CSCAnder Conselvan de Oliveira2-0/+2
Now that the pre-csc degamma table is set up correctly in Geminilake, pipe CSC can be enabled without causing a black screen. v2: Rebase. Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170217120630.6143-3-ander.conselvan.de.oliveira@intel.com
2017-02-17drm/i915/glk: Load the degamma LUT even in legacy gamma modeAnder Conselvan de Oliveira1-1/+2
In Geminilake, the degamma table is enabled or disabled by the pipe CSC enable bit, so its active even when running in the legacy gamma mode. So always set sane values for that table, since the default value is all zeroes. This fixes blank screens after a suspend/resume cycle while legacy gamma is in use. Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20170217120630.6143-2-ander.conselvan.de.oliveira@intel.com
2017-02-17drm: Remove the struct drm_device platformdev fieldLaurent Pinchart8-11/+5
The field contains a pointer to the parent platform device of the DRM device. As struct drm_device also contains a dev pointer to the struct device embedded in the platform_device structure, the platformdev field is redundant. Remove it and use the dev pointer directly. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Acked-by: Jyri Sarha <jsarha@ti.com> Acked-by: Vincent Abriou <vincent.abriou@st.com> # For sti Acked-by: Russell King <rmk+kernel@armlinux.org.uk> # For armada Acked-by: Rob Clark <robdclark@gmail.com> # For msm Acked-by: Xinwei Kong<kong.kongxinwei@hisilicon.com>
2017-02-17drm: Remove unused drm_platform midlayerLaurent Pinchart2-88/+1
Now that the last driver has been converted, the drm_platform midlayer is unused. Remove it. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch Reviewed-by: Sean Paul <seanpaul@chromium.org>
2017-02-17drm: exynos: Perform initialization/cleanup at probe/remove timeLaurent Pinchart7-123/+126
The drm driver .load() operation is prone to race conditions as it initializes the driver after registering the device nodes. Its usage is deprecated, inline it in the probe function and call drm_dev_alloc() and drm_dev_register() explicitly. For consistency inline the .unload() handler in the remove function as well. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Reviewed-by: Sean Paul <seanpaul@chromium.org> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Reviewed-by: Daniel Stone <daniels@collabora.com> Acked-by: Inki Dae <inki.dae@samsung.com>
2017-02-17drm: shmobile: Perform initialization/cleanup at probe/remove timeLaurent Pinchart2-107/+104
The drm driver .load() operation is prone to race conditions as it initializes the driver after registering the device nodes. Its usage is deprecated, inline it in the probe function and call drm_dev_alloc() and drm_dev_register() explicitly. For consistency inline the .unload() handler in the remove function as well. Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com> Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2017-02-17drm/i915: Consolidate gen8_emit_pipe_controlTvrtko Ursulin3-81/+52
We have a few open coded instances in the execlists code and an almost suitable helper in intel_ringbuf.c We can consolidate to a single helper if we change the existing helper to emit directly to ring buffer memory and move the space reservation outside it. v2: Drop memcpy for memset. (Chris Wilson) Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Link: http://patchwork.freedesktop.org/patch/msgid/20170216122325.31391-2-tvrtko.ursulin@linux.intel.com
2017-02-17drm/i915: Tidy workaround batch buffer emissionTvrtko Ursulin1-197/+113
Use the "*batch++ = " style as in the ring emission for better readability and also simplify the logic a bit by consolidating the offset and size calculations and overflow checking. The latter is a programming error so it is not required to check for it after each write to the object, but rather do it once the whole state has been written and fail the driver if something went wrong. v2: Rebase. v3: Keep track of offsets and sizes in bytes for simplicity and rename function pointer variable to _fn suffix. (Chris Wilson) v4: Fix size calc broken in v3 and add alignment warning. (Chris Wilson) v5: Fix return code. v6: I added an exit from loop in v5 but forgot to put back the object teardown. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> (v5) Cc: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
2017-02-17drm/i915: Move common workaround code to intel_engine_csTvrtko Ursulin2-550/+550
It is used by all submission backends. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
2017-02-17drm/i915: Simplify cleanup path in intel_engines_initTvrtko Ursulin1-3/+1
We can call the engine cleanup vfunc instead of duplicating the decision making here. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
2017-02-17drm/i915: Make int __intel_ring_space staticTvrtko Ursulin2-2/+1
It is only used within intel_ringbuffer.c Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.oc.uk>
2017-02-17drm/i915/gvt: handle fence reg access during GPU resetZhao, Xinda2-6/+11
Lots of reduntant log info will be printed out during GPU reset, including accessing untracked mmio register and fence register, variable disable_warn_untrack is added previously to handle the situation, but the accessing of fence register is ignored in the previously patch, so add it back. Besides, set the variable disable_warn_untrack to the defalut value after GPU reset is finished. Signed-off-by: Zhao, Xinda <xinda.zhao@intel.com> Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
2017-02-17drm/i915/gvt: introduced failsafe mode into vgpuMin He5-1/+112
New failsafe mode is introduced, when we detect guest not supporting GVT-g. In failsafe mode, we will ignore all the MMIO and cfg space read/write from guest. This patch can fix the issue that when guest kernel or graphics driver version is too low, there will be a lot of kernel traces in host. V5: rebased onto latest gvt-staging V4: changed coding style by Zhenyu and Ping's advice V3: modified coding style and error messages according to Zhenyu's comment V2: 1) implemented MMIO/GTT/WP pages read/write logic; 2) used a unified function to enter failsafe mode Signed-off-by: Min He <min.he@intel.com> Signed-off-by: Pei Zhang <pei.zhang@intel.com> Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
2017-02-17drm/nouveau/tmr: provide backtrace when a timeout is hitBen Skeggs1-4/+2
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-02-17drm/nouveau/pci/g92: Fix rearmKarol Herbst5-11/+62
704a6c008b7942bb7f30bb43d2a6bcad7f543662 broke pci msi rearm for g92 GPUs. g92 needs the nv46_pci_msi_rearm, where g94+ gpus used nv40_pci_msi_rearm. Reported-by: Andrew Randrianasulu <randrianasulu@gmail.com> Signed-off-by: Karol Herbst <karolherbst@gmail.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com> Cc: stable@vger.kernel.org
2017-02-17drm/nouveau/drm/therm/fan: add a fallback if no fan control is specified in the vbiosMartin Peres1-3/+19
This seems to be absolutely necessary for a lot of NV40. Reported-by: gsgf on IRC/freenode Signed-off-by: Martin Peres <martin.peres@free.fr> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-02-17drm/nouveau/hwmon: expose power_max and power_critKarol Herbst1-0/+44
Signed-off-by: Karol Herbst <karolherbst@gmail.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-02-17drm/nouveau/iccsense: Parse max and crit power levelKarol Herbst2-2/+21
Signed-off-by: Karol Herbst <karolherbst@gmail.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-02-17drm/nouveau/bios/power_budget: Add basic power budget parsingKarol Herbst3-0/+153
v2: Set entry to 0xff if not found Add cap entry for ver 0x30 tables Rework to fix memory leak v3: More error checks Simplify check for invalid entries v4: disable for ver 0x10 for now move assignments after the second last return Signed-off-by: Karol Herbst <karolherbst@gmail.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-02-17drm/nouveau/fifo/gk104-: preempt recoveryBen Skeggs1-0/+1
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-02-17drm/nouveau/fifo/gk104-: trigger mmu fault before attempting engine recoveryBen Skeggs1-0/+41
Greatly improves the chances of recovering the GPU from a CTXSW_TIMEOUT. Tested with piglit's arb_shader_image_load_store-atomicity, which causes GR to hang in such a way that recovery failed (CTXSW_TIMEOUT continually re-triggers). Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-02-17drm/nouveau/fifo/gk104-: ACK SCHED_ERROR before attempting CTXSW_TIMEOUT recoveryBen Skeggs1-0/+8
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-02-17drm/nouveau/fifo/gk104-: directly use new recovery code for ctxsw timeoutBen Skeggs1-24/+6
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-02-17drm/nouveau/fifo/gk104-: directly use new recovery code for mmu faultsBen Skeggs3-8/+37
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-02-17drm/nouveau/fifo/gk104-: reset all engines a killed channel is still active onBen Skeggs1-0/+13
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-02-17drm/nouveau/fifo/gk104-: refactor recovery codeBen Skeggs1-14/+81
This will serve as a basis for implementing some improvements to how we recover the GPU from channel errors. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-02-17drm/nouveau/fifo/gk104-: better detection of chid when parsing engine statusBen Skeggs1-1/+19
The previous commit simply changes the interface, but should result in the same behaviour as previously. This commit has been split out from it as it can result in a different channel being selected. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-02-17drm/nouveau/fifo/gk104-: separate out engine status parsingBen Skeggs1-12/+45
We'll be wanting to reuse this logic in more places. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-02-17drm/nouveau/fifo: add an api for initiating channel recoveryBen Skeggs2-0/+13
This will be used by callers outside of fifo interrupt handlers. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-02-17drm/nouveau/top: add function to translate subdev index to mmu fault idBen Skeggs2-0/+15
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-02-17drm/nouveau/gr/gf100-: implement chsw_load() methodBen Skeggs1-0/+17
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-02-17drm/nouveau/gr: implement chsw_load() methodBen Skeggs2-0/+11
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-02-17drm/nouveau/core: add engine method to assist in determining chsw directionBen Skeggs2-0/+10
FIFO gives us load/save/switch status, and we need to be able to determine which direction a "switch" is failing during channel recovery. In order to do this, we apparently need to query the engine itself. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-02-17drm/nouveau: check for dead channel before trying to idleBen Skeggs1-1/+1
This prevents *very* long waits while attempting to destroy channels after a fault has occurred. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-02-17drm/nouveau: request notifications for channels that have been killedBen Skeggs2-1/+30
These will be used to improve error recovery behaviour. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-02-17drm/nouveau/fifo/gf100-: provide notification to user if channel is killedBen Skeggs11-5/+58
There are instances (such as non-recoverable GPU page faults) where NVKM decides that a channel's context is no longer viable, and will be removed from the runlist. This commit notifies the owner of the channel when this happens, so it has the opportunity to take some kind of recovery action instead of hanging. Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-02-17drm/nouveau/fifo/g84-: rename non-stall interrupt eventBen Skeggs6-6/+6
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-02-17drm/nouveau/fifo: tidy up channel creation event codeBen Skeggs3-6/+13
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-02-17drm/nouveau/core: increase maximum number of notifies that a client can requestBen Skeggs1-1/+1
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-02-17drm/nouveau/drm/nouveau/led: prevent a possible use-after-freeMartin Peres1-0/+1
If the led class registration fails, we free drm->led but do not reset it to NULL, which means that the suspend/resume/fini function will act as if everything went well in init() and will likely crash the kernel. This patch adds the missing drm->led = NULL. Reported-by: Emmanuel Pescosta <emmanuelpescosta099@gmail.com> Signed-off-by: Martin Peres <martin.peres@free.fr> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-02-17drm/nouveau/pci/g92: Enable changing pcie link speedsKarol Herbst1-1/+1
Tested on a G92, seems to work. Confirmed by 8 mmiotraces. Signed-off-by: Karol Herbst <karolherbst@gmail.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-02-17drm/nouveau/pci: Rename g94 to g92Karol Herbst7-20/+20
Signed-off-by: Karol Herbst <karolherbst@gmail.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-02-17drm/nouveau/devinit/nv50: return error code if pll calculation failsBen Skeggs1-1/+1
Reported-by: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-02-17drm/nouveau: fix bug id typo in commentIlia Mirkin1-1/+1
The issue was recorded in fd.o bug 27501, not 25701. Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu> Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-02-17drm/nouveau: size is u64 everywhereBen Skeggs4-19/+21
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
2017-02-17gpu: ipu-v3: Stop overwriting pdev->dev.of_node of child devicesPhilipp Zabel1-6/+0
Setting dev->of_node changes the modalias and breaks module autoloading. Since there is an of_node field in the platform data passed to child devices, we don't even need this anymore. Suggested-by: Russell King <linux@armlinux.org.uk> Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2017-02-17gpu: ipu-v3: export ipu_csi_set_downsizePhilipp Zabel1-0/+1
This function will be used by the media drivers and needs to be exported to allow them to be built as modules. Reported-by: Russell King <linux@armlinux.org.uk> Fixes: 867341b95891 ("gpu: ipu-v3: add ipu_csi_set_downsize") Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
2017-02-17drm/imx: lift 64x64 pixel minimum framebuffer size requirementPhilipp Zabel1-2/+2
There is no reason to limit framebuffer size to 64x64 pixels at a minimum on creation. The actual scanout limitations (width >= 13 for the base plane and height >= 2) are checked in atomic_check. Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de> Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
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