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2016-11-15drm: rcar-du: Fix LVDS start sequence on Gen3Koji Matsuoka
According to the latest revision of the datasheet, the LVDS I/O pins must be enabled before starting the PLL. Fix it. Signed-off-by: Koji Matsuoka <koji.matsuoka.xm@renesas.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2016-11-15drm: rcar-du: Fix H/V sync signal polarity configurationKoji Matsuoka
The VSL and HSL bits in the DSMR register set the corresponding horizontal and vertical sync signal polarity to active high. The code got it the wrong way around, fix it. Signed-off-by: Koji Matsuoka <koji.matsuoka.xm@renesas.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2016-11-15drm: rcar-du: Fix display timing controller parameterKoji Matsuoka
There is a bug in the setting of the DES (Display Enable Signal) register. This current setting occurs 1 dot left shift. The DES register should be set minus one value about the specifying value with H/W specification. This patch corrects it. Signed-off-by: Koji Matsuoka <koji.matsuoka.xm@renesas.com> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2016-11-15drm: rcar-du: Fix dot clock routing configurationLaurent Pinchart
Dot clock routing is setup through different registers depending on the DU generation. The code has been designed for Gen2 and hasn't been updated since. This works thanks to good reset default value, but isn't very safe. Fix it. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2016-11-15drm: rcar-du: Add R8A7796 supportLaurent Pinchart
Document the R8A7796-specific DT bindings and support them in the driver. The HDMI output is currently not supported. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2016-11-15drm: rcar-du: Add R8A7792 supportSergei Shtylyov
Add support for the R8A7792 DU; it has 2 DPAD (RGB) outputs. Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2016-11-15drm: rcar-du: Simplify and fix probe error handlingLaurent Pinchart
It isn't safe to call drm_dev_unregister() without first initializing mode setting with drm_mode_config_init(). This leads to a crash if either IO memory can't be remapped or vblank initialization fails. Fix this by reordering the initialization sequence. Move vblank initialization after the drm_mode_config_init() call, and move IO remapping before drm_dev_alloc() to avoid the need to perform clean up in case of failure. While at it remove the explicit drm_vblank_cleanup() call from rcar_du_remove() as the drm_dev_unregister() function already cleans up vblank. Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
2016-11-14drm/i915/scheduler: Boost priorities for flipsChris Wilson
Boost the priority of any rendering required to show the next pageflip as we want to avoid missing the vblank by being delayed by invisible workload. We prioritise avoiding jank and jitter in the GUI over starving background tasks. v2: Descend dma_fence_array when boosting priorities. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20161114204105.29171-10-chris@chris-wilson.co.uk
2016-11-14drm/i915: Store the execution priority on the contextChris Wilson
In order to support userspace defining different levels of importance to different contexts, and in particular the preferred order of execution, store a priority value on each context. By default, the kernel's context, which is used for idling and other background tasks, is given minimum priority (i.e. all user contexts will execute before the kernel). Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20161114204105.29171-9-chris@chris-wilson.co.uk
2016-11-14drm/i915/scheduler: Execute requests in order of prioritiesChris Wilson
Track the priority of each request and use it to determine the order in which we submit requests to the hardware via execlists. The priority of the request is determined by the user (eventually via the context) but may be overridden at any time by the driver. When we set the priority of the request, we bump the priority of all of its dependencies to match - so that a high priority drawing operation is not stuck behind a background task. When the request is ready to execute (i.e. we have signaled the submit fence following completion of all its dependencies, including third party fences), we put the request into a priority sorted rbtree to be submitted to the hardware. If the request is higher priority than all pending requests, it will be submitted on the next context-switch interrupt as soon as the hardware has completed the current request. We do not currently preempt any current execution to immediately run a very high priority request, at least not yet. One more limitation, is that this is first implementation is for execlists only so currently limited to gen8/gen9. v2: Replace recursive priority inheritance bumping with an iterative depth-first search list. v3: list_next_entry() for walking lists v4: Explain how the dfs solves the recursion problem with PI. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20161114204105.29171-8-chris@chris-wilson.co.uk
2016-11-14drm/i915/scheduler: Record all dependencies upon request constructionChris Wilson
The scheduler needs to know the dependencies of each request for the lifetime of the request, as it may choose to reschedule the requests at any time and must ensure the dependency tree is not broken. This is in additional to using the fence to only allow execution after all dependencies have been completed. One option was to extend the fence to support the bidirectional dependency tracking required by the scheduler. However the mismatch in lifetimes between the submit fence and the request essentially meant that we had to build a completely separate struct (and we could not simply reuse the existing waitqueue in the fence for one half of the dependency tracking). The extra dependency tracking simply did not mesh well with the fence, and keeping it separate both keeps the fence implementation simpler and allows us to extend the dependency tracking into a priority tree (whilst maintaining support for reordering the tree). To avoid the additional allocations and list manipulations, the use of the priotree is disabled when there are no schedulers to use it. v2: Create a dedicated slab for i915_dependency. Rename the lists. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20161114204105.29171-7-chris@chris-wilson.co.uk
2016-11-14drm/i915/scheduler: Signal the arrival of a new requestChris Wilson
The start of the scheduler, add a hook into request submission for the scheduler to see the arrival of new requests and prepare its runqueues. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20161114204105.29171-6-chris@chris-wilson.co.uk
2016-11-14drm/i915: Remove engine->execlist_lockChris Wilson
The execlist_lock is now completely subsumed by the engine->timeline->lock, and so we can remove the redundant layer of locking. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20161114204105.29171-5-chris@chris-wilson.co.uk
2016-11-14drm/i915: Defer transfer onto execution timeline to actual hw submissionChris Wilson
Defer the transfer from the client's timeline onto the execution timeline from the point of readiness to the point of actual submission. For example, in execlists, a request is finally submitted to hardware when the hardware is ready, and only put onto the hardware queue when the request is ready. By deferring the transfer, we ensure that the timeline is maintained in retirement order if we decide to queue the requests onto the hardware in a different order than fifo. v2: Rebased onto distinct global/user timeline lock classes. v3: Play with the position of the spin_lock(). v4: Nesting finally resolved with distinct sw_fence lock classes. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20161114204105.29171-4-chris@chris-wilson.co.uk
2016-11-14drm/i915: Split request submit/execute phase into twoChris Wilson
In order to support deferred scheduling, we need to differentiate between when the request is ready to run (i.e. the submit fence is signaled) and when the request is actually run (a new execute fence). This is typically split between the request itself wanting to wait upon others (for which we use the submit fence) and the CPU wanting to wait upon the request, for which we use the execute fence to be sure the hardware is ready to signal completion. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20161114204105.29171-3-chris@chris-wilson.co.uk
2016-11-14drm/i915: Create distinct lockclasses for execution vs user timelinesChris Wilson
In order to simplify the lockdep annotation, as they become more complex in the future with deferred execution and multiple paths through the same functions, create a separate lockclass for the user timeline and the hardware execution timeline. We should only ever be locking the user timeline and the execution timeline in parallel so we only need to create two lock classes, rather than a separate class for every timeline. v2: Rename the lock classes to be more consistent with other lockdep. 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/20161114204105.29171-2-chris@chris-wilson.co.uk
2016-11-14drm/i915: Give each sw_fence its own lockclassChris Wilson
Localise the static struct lock_class_key to the caller of i915_sw_fence_init() so that we create a lock_class instance for each unique sw_fence rather than all sw_fences sharing the same lock_class. This eliminate some lockdep false positive when using fences from within fence callbacks. For the relatively small number of fences currently in use [2], this adds 160 bytes of unused text/code when lockdep is disabled. This seems quite high, but fully reducing it via ifdeffery is also quite ugly. Removing the #fence strings saves 72 bytes with just a single #ifdef. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20161114204105.29171-1-chris@chris-wilson.co.uk
2016-11-14drm/i915: Remove some duplicated plane swapping logicVille Syrjälä
On pre-gen4 we connect plane A to pipe B and vice versa to get an FBC capable plane feeding the LVDS port by default. We have the logic for the plane swapping duplicated in many places. Let's remove a bit of the duplication by having the crtc look up the thing from the primary plane. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1478616439-10150-2-git-send-email-ville.syrjala@linux.intel.com Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
2016-11-14drm/i915: Simplify DP port limited color range bit platform checksVille Syrjälä
Instead of checking for everything not supporting the limited color range bit in the DP port register, let's check for the one thing that does have it (g4x). Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Jim Bride <jim.bride@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1479145447-12907-3-git-send-email-ville.syrjala@linux.intel.com
2016-11-14drm/i915: Kill dp_encoder_is_mstVille Syrjälä
dp_encoder_is_mst flag in the crtc state can be replaced by intel_crtc_has_type(..., INTEL_OUTPUT_DP_MST). Let's do that. Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Jim Bride <jim.bride@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1479145447-12907-2-git-send-email-ville.syrjala@linux.intel.com
2016-11-14drm/i915: Add horizontal mirroring support for CHV pipe B planesVille Syrjälä
The primary and sprite planes on CHV pipe B support horizontal mirroring. Expose it to the world. Sadly the hardware ignores the mirror bit when the rotate bit is set, so we'll have to reject the 180+X case. v2: Drop the BIT() v3: Pass dev_priv instead of dev to IS_CHERRYVIEW() Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1479142440-25283-4-git-send-email-ville.syrjala@linux.intel.com
2016-11-14drm/i915: Clean up rotation DSPCNTR/DVSCNTR/etc. setupVille Syrjälä
Move the plane control register rotation setup away from the coordinate munging code. This will result in neater looking code once we add reflection support for CHV. v2: Drop the BIT(), drop some usless parens, Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1479142440-25283-3-git-send-email-ville.syrjala@linux.intel.com
2016-11-14drm/i915: Use & instead if == to check for rotationsVille Syrjälä
Using == to check for 180 degree rotation only works as long as the reflection bits aren't set. That will change soon enough for CHV, so let's stop doing things the wrong way. v2: Drop the BIT() Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1479142440-25283-2-git-send-email-ville.syrjala@linux.intel.com
2016-11-14drm/i915/fbc: convert intel_fbc.c to use INTEL_GEN()Paulo Zanoni
Because it's shorter, easier to read, newer and cooler. And I don't think anybody else has pending FBC patches right now, so the conflicts should be minimal. Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Link: http://patchwork.freedesktop.org/patch/msgid/1478883461-20201-8-git-send-email-paulo.r.zanoni@intel.com
2016-11-14drm/i915/fbc: use drm_atomic_get_existing_crtc_state when appropriatePaulo Zanoni
Use drm_atomic_get_existing_crtc_state() instead of looping through the CRTC states and checking if the FBC CRTC is there. Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Link: http://patchwork.freedesktop.org/patch/msgid/1478883461-20201-6-git-send-email-paulo.r.zanoni@intel.com
2016-11-14drm/i915/fbc: inline intel_fbc_can_choose()Paulo Zanoni
It only has two checks now, so it makes sense to just move the code to the caller. Also take this opportunity to make no_fbc_reason make more sense: now we'll only list "no suitable CRTC for FBC" instead of maybe giving a reason why the last CRTC we checked was not selected, and we'll more consistently set the reason (e.g., if no primary planes are visible). Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Link: http://patchwork.freedesktop.org/patch/msgid/1478883461-20201-5-git-send-email-paulo.r.zanoni@intel.com
2016-11-14drm/i915/fbc: extract intel_fbc_can_enable()Paulo Zanoni
Extract that part of the code to a new function and call this function only once during intel_fbc_choose_crtc() instead of once per plane. Those checks are independent from planes/CRTCs. Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Link: http://patchwork.freedesktop.org/patch/msgid/1478883461-20201-4-git-send-email-paulo.r.zanoni@intel.com
2016-11-14drm/i915/fbc: replace a loop with drm_atomic_get_existing_crtc_state()Paulo Zanoni
Much simpler. Thanks to Ville for pointing this. Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Reported-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1478883461-20201-3-git-send-email-paulo.r.zanoni@intel.com
2016-11-14drm/i915/fbc: move the intel_fbc_can_choose() call out of the loopPaulo Zanoni
We can just call it earlier, so do it. The goal of the loop is to get the plane's CRTC state, and we don't need it in order to call intel_fbc_can_choose(). Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Link: http://patchwork.freedesktop.org/patch/msgid/1478883461-20201-2-git-send-email-paulo.r.zanoni@intel.com
2016-11-14drm/i915: Fix test on inputs for vma_compare()Chris Wilson
When supplying a view to vma_compare() it is required that the supplied i915_address_space is the global GTT. I tested the VMA instead (which is the current position in the rbtree and maybe from any address space). (This reapplies commit a44342acde30 ("drm/i915: Fix test on inputs for vma_compare()") as it was lost in the vma split) Reported-by: Matthew Auld <matthew.auld@intel.com> Tested-by: Matthew Auld <matthew.auld@intel.com> Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=98579 Fixes: db6c2b4151f2 ("drm/i915: Store the vma in an rbtree...") Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Matthew Auld <matthew.auld@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20161103200852.23431-1-chris@chris-wilson.co.uk Reviewed-by: Matthew Auld <matthew.auld@intel.com> Reported-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Fixes: b42fe9ca0a1e ("drm/i915: Split out i915_vma.c") Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
2016-11-14drm/i915/gen9: fix the WM memory bandwidth WA for Y tiling casesPaulo Zanoni
The previous spec version said "double Ytile planes minimum lines", and I interpreted this as referring to what the spec calls "Y tile minimum", but in fact it was referring to what the spec calls "Minimum Scanlines for Y tile". I noticed that Mahesh Kumar had a different interpretation, so I sent and email to the spec authors and got clarification on the correct meaning. Also, BSpec was updated and should be clear now. Fixes: ee3d532fcb64 ("drm/i915/gen9: unconditionally apply the memory bandwidth WA") Cc: stable@vger.kernel.org Cc: Mahesh Kumar <mahesh1.kumar@intel.com> Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com> Reviewed-by: Matt Roper <matthew.d.roper@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1478636531-6081-1-git-send-email-paulo.r.zanoni@intel.com
2016-11-14drm/i915: Assume non-DP++ port if dvo_port is HDMI and there's no AUX ch ↵Ville Syrjälä
specified in the VBT My heuristic for detecting type 1 DVI DP++ adaptors based on the VBT port information apparently didn't survive the reality of buggy VBTs. In this particular case we have a machine with a natice HDMI port, but the VBT tells us it's a DP++ port based on its capabilities. The dvo_port information in VBT does claim that we're dealing with a HDMI port though, but we have other machines which do the same even when they actually have DP++ ports. So that piece of information alone isn't sufficient to tell the two apart. After staring at a bunch of VBTs from various machines, I have to conclude that the only other semi-reliable clue we can use is the presence of the AUX channel in the VBT. On this particular machine AUX channel is specified as zero, whereas on some of the other machines which listed the DP++ port as HDMI have a non-zero AUX channel. I've also seen VBTs which have dvo_port a DP but have a zero AUX channel. I believe those we need to treat as DP ports, so we'll limit the AUX channel check to just the cases where dvo_port is HDMI. If we encounter any more serious failures with this heuristic I think we'll have to have to throw it out entirely. But that could mean that there is a risk of type 1 DVI dongle users getting greeted by a black screen, so I'd rather not go there unless absolutely necessary. v2: Remove the duplicate PORT_A check (Daniel) Fix some typos in the commit message Cc: Daniel Otero <daniel.otero@outlook.com> Cc: stable@vger.kernel.org Tested-by: Daniel Otero <daniel.otero@outlook.com> Fixes: d61992565bd3 ("drm/i915: Determine DP++ type 1 DVI adaptor presence based on VBT") Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=97994 Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1478884464-14251-1-git-send-email-ville.syrjala@linux.intel.com Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
2016-11-14drm/i915: rename preliminary_hw_support to alpha_supportJani Nikula
The term "preliminary hardware support" has always caused confusion both among users and developers. It has always been about preliminary driver support for new hardware, and not so much about preliminary hardware. Of course, initially both the software and hardware are in early stages, but the distinction becomes more clear when the user picks up production hardware and an older kernel to go with it, with just the early support we had for the hardware at the time the kernel was released. The user has to specifically enable the alpha quality *driver* support for the hardware in that specific kernel version. Rename preliminary_hw_support to alpha_support to emphasize that the module parameter, config option, and flag are about software, not about hardware. Improve the language in help texts and debug logging as well. This appears to be a good time to do the change, as there are currently no platforms with preliminary^W alpha support. Cc: Rob Clark <robdclark@gmail.com> Cc: Dave Airlie <airlied@gmail.com> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/1477909108-18696-1-git-send-email-jani.nikula@intel.com
2016-11-14drm/i915: Update i915_driver_load kerneldocJoonas Lahtinen
Update i915_driver_load kerneldoc to match code. Cc: Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Link: http://patchwork.freedesktop.org/patch/msgid/1478784994-2494-2-git-send-email-joonas.lahtinen@linux.intel.com
2016-11-14drm/fb_cma_helper: Add drm_fb_cma_prepare_fb() helperMarek Vasut
Add new drm_fb_cma_prepare_fb() helper function extracted from the imx-drm driver. This function checks if the plane has DMABUF attached to it, extracts the exclusive fence from it and attaches it to the plane state for the atomic helper to wait on it. Signed-off-by: Marek Vasut <marex@denx.de> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Lucas Stach <l.stach@pengutronix.de> Reviewed-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/20161114100732.3446-1-marex@denx.de
2016-11-14drm/i915/gvt: clear guest opregionXiaoguang Chen
Since there's no opregion in vgpu so clear the opregion bits in case guest access it. Signed-off-by: Xiaoguang Chen <xiaoguang.chen@intel.com> Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
2016-11-14drm/i915/gvt: add more MMIO regs with command access flagPing Gao
Add more MMIO regs with command access flag for whitelist as they are accessed by command. Signed-off-by: Ping Gao <ping.a.gao@intel.com> Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
2016-11-14drm/i915/gvt: Fix static checker warning on intel_gvt_i2c_handle_aux_ch_write()Zhenyu Wang
Static checker gave warning on: drivers/gpu/drm/i915/gvt/edid.c:506 intel_gvt_i2c_handle_aux_ch_write() warn: odd binop '0x0 & 0xff' We try to return ACK for I2C reply which is defined with 0. Remove bit shift which caused misleading bit op. Cc: Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
2016-11-14drm/i915/gvt: fix mem leakage in setup_vgpu_mmio for vgpu resetDu, Changbin
Gvt gdrst handler handle_device_reset() invoke function setup_vgpu_mmio() to reset mmio status. In this case, the virtual mmio memory has been allocated already. The new allocation just cause old mmio memory leakage. Signed-off-by: Du, Changbin <changbin.du@intel.com> Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
2016-11-14drm/i915/gvt: fix crash in vgpu_reset_execlistDu, Changbin
We initiate vgpu->workload_q_head via for_each_engine macro which may skip unavailable engines. So we should follow this rule anywhere. The function intel_vgpu_reset_execlist is not aware of this. Kernel crash when touch a uninitiated vgpu->workload_q_head[x]. Let's fix it by using for_each_engine_masked and skip unavailable engine ID. Meanwhile rename ring_bitmap to general name engine_mask. v2: remove unnecessary engine activation check (zhenyu) Signed-off-by: Du, Changbin <changbin.du@intel.com> Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
2016-11-14drm/i915/gvt: emulate right behavior for tlb_controlPing Gao
Emulate right behavior for tlb_control, set to ZERO upon write. Signed-off-by: Ping Gao <ping.a.gao@intel.com> Signed-off-by: Min He <min.he@intel.com> Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
2016-11-14drm/i915/gvt: fix deadlock in workload_threadPei Zhang
It's a classical abba type deadlock when using 2 mutex objects, which are gvt.lock(a) and drm.struct_mutex(b). Deadlock happens in threads: 1. intel_gvt_create/destroy_vgpu: P(a)->P(b) 2. workload_thread: P(b)->P(a) Fix solution is align the lock acquire sequence in both threads. This patch choose to adjust the sequence in workload_thread function. This fixed lockup symptom for guest-reboot stress test. v2: adjust sequence in workload_thread based on zhenyu's suggestion. adjust sequence in create/destroy_vgpu function. v3: fix to still require struct_mutex for dispatch_workload() Signed-off-by: Pei Zhang <pei.zhang@intel.com> [zhenyuw: fix unused variables warnings.] Signed-off-by: Zhenyu Wang <zhenyuw@linux.intel.com>
2016-11-14drm/gma500: use DRM_FB_HELPER_DEFAULT_OPS for fb_opsStefan Christ
This refactoring leads to real functional changes in the driver. Now the struct psbfb_ops implements two additional members: .fb_setcmap = drm_fb_helper_setcmap, .fb_pan_display = drm_fb_helper_pan_display, and the struct psbfb_roll_ops implements one additional member: .fb_setcmap = drm_fb_helper_setcmap, and the struct psbfb_unaccel_ops implements two additional members: .fb_setcmap = drm_fb_helper_setcmap, .fb_pan_display = drm_fb_helper_pan_display, These changes are not tested. Cc: Patrik Jakobsson <patrik.r.jakobsson@gmail.com> Signed-off-by: Stefan Christ <contact@stefanchrist.eu> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1479078208-25221-19-git-send-email-contact@stefanchrist.eu
2016-11-14drm/i915: use DRM_FB_HELPER_DEFAULT_OPS for fb_opsStefan Christ
Cc: Daniel Vetter <daniel.vetter@intel.com> Cc: Jani Nikula <jani.nikula@linux.intel.com> Signed-off-by: Stefan Christ <contact@stefanchrist.eu> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1479078208-25221-18-git-send-email-contact@stefanchrist.eu
2016-11-14drm/omapdrm: use DRM_FB_HELPER_DEFAULT_OPS for fb_opsStefan Christ
Cc: Tomi Valkeinen <tomi.valkeinen@ti.com> Signed-off-by: Stefan Christ <contact@stefanchrist.eu> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1479078208-25221-17-git-send-email-contact@stefanchrist.eu
2016-11-14drm/virtio: use DRM_FB_HELPER_DEFAULT_OPS for fb_opsStefan Christ
This patch removes a TODO comment in the code. I do not know whether it is still relevant. Cc: David Airlie <airlied@linux.ie> Cc: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Stefan Christ <contact@stefanchrist.eu> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1479078208-25221-16-git-send-email-contact@stefanchrist.eu
2016-11-14drm/msm: use DRM_FB_HELPER_DEFAULT_OPS for fb_opsStefan Christ
Cc: Rob Clark <robdclark@gmail.com> Signed-off-by: Stefan Christ <contact@stefanchrist.eu> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1479078208-25221-15-git-send-email-contact@stefanchrist.eu
2016-11-14drm/udl: use DRM_FB_HELPER_DEFAULT_OPS for fb_opsStefan Christ
Cc: Dave Airlie <airlied@redhat.com> Signed-off-by: Stefan Christ <contact@stefanchrist.eu> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1479078208-25221-14-git-send-email-contact@stefanchrist.eu
2016-11-14drm/tegra: use DRM_FB_HELPER_DEFAULT_OPS for fb_opsStefan Christ
Cc: Thierry Reding <thierry.reding@gmail.com> Signed-off-by: Stefan Christ <contact@stefanchrist.eu> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1479078208-25221-13-git-send-email-contact@stefanchrist.eu
2016-11-14drm/radeon: use DRM_FB_HELPER_DEFAULT_OPS for fb_opsStefan Christ
Cc: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Stefan Christ <contact@stefanchrist.eu> Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch> Link: http://patchwork.freedesktop.org/patch/msgid/1479078208-25221-12-git-send-email-contact@stefanchrist.eu