- 29 Nov, 2017 4 commits
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Sagar Arun Kamble authored
This patch makes v9.33 firmware as default firmware for SKL. Note: GuC logging control is changed with this firmware. GuC is expecting i915 to set control bit to enable "default logging" while using GuC action UK_LOG_ENABLE_LOGGING. However i915 is currently not doing this because it is version specific change and can be handled entirely in GuC. It will need to be fixed in future firmwares. This update includes (since v6.1): - HuC RSA Keys updated. - Adding per engine preemption support in GuC scheduler - Minor bug fixes. - Added support to log media reset count for host to read it - Sub-feature level control for power management features. - Minor clean-up for power management interface. - Unified power management interface and scheduler interface into 1 file using same version. - Bug Fix for multi context scheduler flag. - DCC spec changes for BXT + DCT enabling - SB based Pre-ETM/ETM flow enabling for debug signed GuC/HuC - Moving GuC non_critical r/w data to lower SRAM 64KB - Media engine Reset fix. Correctly marking context for resubmission in Media Reset case. - ABT Disable bug fix. Disabled Evaluation mode on context change. - Async FW in Engine Schedule feature (not enabled from KMD) - GuC clean up to align developer build in line to production build. - DCC consistency fix for SKL - Disable ARAT interrupt before programming ARAT delta. - Memory range check in Parse to avoid failure due to overflow. - Enabled WA for MSGCH hang issue - Clear forcewake in CSB when SQ is empty. - Move UkGuckmdInterface.h file from 2016 folders to common 2016 folder. - This is file location change.No functional change done as part of this check in. - Enable decoupled freq for SKL GT4 - 3 tries of wake request needed from GuC2CSME for ME to wake up. Request has come from ME spec - During reset one parameter was not getting accounted - Enabling Guc Log changes for ultra low logging for OCA - Enabling build failure check to catch critical section overflow. - Disable build.bat redundant prints. - Move few least used functions to non-critical section. - Rearrange GuC documentation folder structure. - Synchronize SLPC internal debug interface with other branches. - Fixing Issue with Default Guc Log changes for OCA using special Control Bit v2: Rebase. Updated commit message. Signed-off-by:
Jeff McGee <jeff.mcgee@intel.com> Signed-off-by:
Sagar Arun Kamble <sagar.a.kamble@intel.com> Cc: Spotswood John A <john.a.spotswood@intel.com> Cc: Anusha Srivatsa <anusha.srivatsa@intel.com> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Reviewed-by:
Anusha Srivatsa <anusha.srivatsa@intel.com> Signed-off-by:
Rodrigo Vivi <rodrigo.vivi@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1511972351-574-2-git-send-email-sagar.a.kamble@intel.com
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Tvrtko Ursulin authored
Sagar noticed the check can be consolidated between the engine stats implementation and the PMU. My first choice was a static inline helper but that got into include ordering mess quickly fast so I went with a macro instead. At some point we should perhaps looking into taking out the non-ringubffer bits from intel_ringbuffer.h into a new intel_engine.h or something. v2: Use engine->flags. (Chris Wilson) v3: Rebase and mark GuC as not yet supported. (Chris Wilson) v4: Move flag setting to intel_engines_reset_default_submission. (Chris Wilson) v5: Move flag setting to logical_ring_setup. v6: intel_engines_reset_default_submission is the wrong place to set the flag - it needs to be in execlists_set_default_submission. (Sagar) v7: Flag setting in logical_ring_setup is not required. (Chris) Signed-off-by:Tvrtko Ursulin <tvrtko.ursulin@intel.com> Suggested-by:
Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by: Sagar Arun Kamble <sagar.a.kamble@intel.com> (v6) Link: https://patchwork.freedesktop.org/patch/msgid/20171129102805.22690-1-tvrtko.ursulin@linux.intel.com
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Tvrtko Ursulin authored
Will be adding a new per-engine flags shortly so it makes sense to consolidate. v2: Keep the original code flow in intel_engine_cleanup_cmd_parser. (Joonas Lahtinen) Signed-off-by:Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171129082409.18189-1-tvrtko.ursulin@linux.intel.com
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Joonas Lahtinen authored
We seem to be missing some W/A for 2M pages and are getting a hit on raw GPU read bandwidths (even 30%) even though the GPU write bandwidths improve (even 10%). For now, disable THP, which is our only practical source of 2M pages until we have a W/A for the issue. v2: - Be explicit that we talk about GPU bandwidths (Eero) - s/deny/never/ because that's why (Chris) Reported-by:
Valtteri Rantala <valtteri.rantala@intel.com> Fixes: b901bb89 ("drm/i915/gemfs: enable THP") Signed-off-by:
Matthew Auld <matthew.auld@intel.com> Tested-by:
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- 28 Nov, 2017 2 commits
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Tvrtko Ursulin authored
In commit 0426c046 ("drm/i915/pmu: Only allow running on a single CPU") I attempted to clarify the CPU hotplug logic in our PMU implementation, but missed that a more logical error to return, when attempting to initialize an event on a currently inactive CPU, is -EINVAL rather than -ENODEV. This is because i915 PMU explicitly disallows running counters on more than one CPU at a time, and is not reporting that the requested CPU does not exist, or is off-line. Signed-off-by:
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Chris Wilson authored
Previously we would enable hotplug polling on the outputs immediately upon construction. This would allow a very early hotplug event to trigger before we had finishing setting up the driver to handle it. Instead, move the output polling to the last step of registration, after we have set up all handlers, including the fbdev configuration. v2: Symmetrically turnoff the hotplug helper in unregister after the fbdev is first synchronised then finalized. This stops a late hotplug event being processed after the interrupts are disabled. Signed-off-by:
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- 27 Nov, 2017 7 commits
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Chris Wilson authored
The kerneldoc markup for i915_gem_timelines_mark_idle() was incorrect, so take the opportunity to also convert it from the "mark_idle" to "park" naming scheme. drivers/gpu/drm/i915/i915_gem_timeline.c:120: warning: No description found for parameter 'i915' Signed-off-by:
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Chris Wilson authored
Switch over from the non-descript dev_priv locals to i915. Signed-off-by:
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Chris Wilson authored
Since the shrinker is registered and unregistered during i915_driver_register and i915_driver_unregister, respectively, rename the init/cleanup functions to match. Signed-off-by:
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Chris Wilson authored
It may be of interest to both compare the active HW context against the default (aka NULL) context, to see what has been changed and if either are corrupt. v2: Rename the fake vma as fake. Signed-off-by:
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Chris Wilson authored
Even though all rendering should have been flushed at the end of the previous requests, add an extra flush after switching to the kernel_context. As the switch to the kernel_context is used when idling the gpu (e.g. suspend), having an extra layer of paranoia to ensure everything is flushed to memory seems sensible. Signed-off-by:
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Arnd Bergmann authored
Building i915 without backlight support results in a harmless warning for intel_panel_set_backlight: drivers/gpu/drm/i915/intel_panel.c:653:13: error: 'intel_panel_set_backlight' defined but not used [-Werror=unused-function] This moves it into the CONFIG_BACKLIGHT_CLASS_DEVICE section that its caller is in. Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
Daniel Vetter <daniel.vetter@ffwll.ch> Link: https://patchwork.freedesktop.org/patch/msgid/20171127151239.1813673-2-arnd@arndb.de
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Arnd Bergmann authored
The alternative intel_backlight_device_register() definition apparently never got used, but I have now run into a case of i915 being compiled without CONFIG_BACKLIGHT_CLASS_DEVICE, resulting in a number of identical warnings: drivers/gpu/drm/i915/intel_drv.h:1739:12: error: 'intel_backlight_device_register' defined but not used [-Werror=unused-function] This marks the function as 'inline', which was surely the original intention here. Fixes: 1ebaa0b9 ("drm/i915: Move backlight registration to connector registration") Signed-off-by:
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- 26 Nov, 2017 1 commit
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Chris Wilson authored
As both the hotplug event and fbdev configuration run asynchronously, it is possible for them to run concurrently. If configuration fails, we were freeing the fbdev causing a use-after-free in the hotplug event. <7>[ 3069.935211] [drm:intel_fb_initial_config [i915]] Not using firmware configuration <7>[ 3069.935225] [drm:drm_setup_crtcs] looking for cmdline mode on connector 77 <7>[ 3069.935229] [drm:drm_setup_crtcs] looking for preferred mode on connector 77 0 <7>[ 3069.935233] [drm:drm_setup_crtcs] found mode 3200x1800 <7>[ 3069.935236] [drm:drm_setup_crtcs] picking CRTCs for 8192x8192 config <7>[ 3069.935253] [drm:drm_setup_crtcs] desired mode 3200x1800 set on crtc 43 (0,0) <7>[ 3069.935323] [drm:intelfb_create [i915]] no BIOS fb, allocating a new one <4>[ 3069.967737] general protection fault: 0000 [#1] PREEMPT SMP <0>[ 3069.977453] --------------------------------- <4>[ 3069.977457] Modules linked in: i915(+) vgem snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic x86_pkg_temp_thermal intel_powerclamp coretemp crct10dif_pclmul crc32_pclmul ghash_clmulni_intel snd_hda_codec snd_hwdep snd_hda_core snd_pcm r8169 mei_me mii prime_numbers mei i2c_hid pinctrl_geminilake pinctrl_intel [last unloaded: i915] <4>[ 3069.977492] CPU: 1 PID: 15414 Comm: kworker/1:0 Tainted: G U 4.14.0-CI-CI_DRM_3388+ #1 <4>[ 3069.977497] Hardware name: Intel Corp. Geminilake/GLK RVP1 DDR4 (05), BIOS GELKRVPA.X64.0062.B30.1708222146 08/22/2017 <4>[ 3069.977508] Workqueue: events output_poll_execute <4>[ 3069.977512] task: ffff880177734e40 task.stack: ffffc90001fe4000 <4>[ 3069.977519] RIP: 0010:__lock_acquire+0x109/0x1b60 <4>[ 3069.977523] RSP: 0018:ffffc90001fe7bb0 EFLAGS: 00010002 <4>[ 3069.977526] RAX: 6b6b6b6b6b6b6b6b RBX: 0000000000000282 RCX: 0000000000000000 <4>[ 3069.977530] RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffff880170d4efd0 <4>[ 3069.977534] RBP: ffffc90001fe7c70 R08: 0000000000000001 R09: 0000000000000000 <4>[ 3069.977538] R10: 0000000000000000 R11: ffffffff81899609 R12: ffff880170d4efd0 <4>[ 3069.977542] R13: ffff880177734e40 R14: 0000000000000001 R15: 0000000000000000 <4>[ 3069.977547] FS: 0000000000000000(0000) GS:ffff88017fc80000(0000) knlGS:0000000000000000 <4>[ 3069.977551] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 3069.977555] CR2: 00007f7e8b7bcf04 CR3: 0000000003e0f000 CR4: 00000000003406e0 <4>[ 3069.977559] Call Trace: <4>[ 3069.977565] ? mark_held_locks+0x64/0x90 <4>[ 3069.977571] ? _raw_spin_unlock_irq+0x24/0x50 <4>[ 3069.977575] ? _raw_spin_unlock_irq+0x24/0x50 <4>[ 3069.977579] ? trace_hardirqs_on_caller+0xde/0x1c0 <4>[ 3069.977583] ? _raw_spin_unlock_irq+0x2f/0x50 <4>[ 3069.977588] ? finish_task_switch+0xa5/0x210 <4>[ 3069.977592] ? lock_acquire+0xaf/0x200 <4>[ 3069.977596] lock_acquire+0xaf/0x200 <4>[ 3069.977600] ? __mutex_lock+0x5e9/0x9b0 <4>[ 3069.977604] _raw_spin_lock+0x2a/0x40 <4>[ 3069.977608] ? __mutex_lock+0x5e9/0x9b0 <4>[ 3069.977612] __mutex_lock+0x5e9/0x9b0 <4>[ 3069.977616] ? drm_fb_helper_hotplug_event.part.19+0x16/0xa0 <4>[ 3069.977621] ? drm_fb_helper_hotplug_event.part.19+0x16/0xa0 <4>[ 3069.977625] drm_fb_helper_hotplug_event.part.19+0x16/0xa0 <4>[ 3069.977630] output_poll_execute+0x8d/0x180 <4>[ 3069.977635] process_one_work+0x22e/0x660 <4>[ 3069.977640] worker_thread+0x48/0x3a0 <4>[ 3069.977644] ? _raw_spin_unlock_irqrestore+0x4c/0x60 <4>[ 3069.977649] kthread+0x102/0x140 <4>[ 3069.977653] ? process_one_work+0x660/0x660 <4>[ 3069.977657] ? kthread_create_on_node+0x40/0x40 <4>[ 3069.977662] ret_from_fork+0x27/0x40 <4>[ 3069.977666] Code: 8d 62 f8 c3 49 81 3c 24 e0 fa 3c 82 41 be 00 00 00 00 45 0f 45 f0 83 fe 01 77 86 89 f0 49 8b 44 c4 08 48 85 c0 0f 84 76 ff ff ff <f0> ff 80 38 01 00 00 8b 1d 62 f9 e8 01 45 8b 85 b8 08 00 00 85 <1>[ 3069.977707] RIP: __lock_acquire+0x109/0x1b60 RSP: ffffc90001fe7bb0 <4>[ 3069.977712] ---[ end trace 4ad012eb3af62df7 ]--- In order to keep the dev_priv->ifbdev alive after failure, we have to avoid the free and leave it empty until we unload the module (which is less than ideal, but a necessary evil for simplicity). Then we can use intel_fbdev_sync() to serialise the hotplug event with the configuration. The serialisation between the two was removed in commit 934458c2 ("Revert "drm/i915: Fix races on fbdev""), but the use after free is much older, commit 366e39b4 ("drm/i915: Tear down fbdev if initialization fails") Fixes: 366e39b4 ("drm/i915: Tear down fbdev if initialization fails") Fixes: 934458c2 ("Revert "drm/i915: Fix races on fbdev"") Signed-off-by:
Lukas Wunner <lukas@wunner.de> Link: https://patchwork.freedesktop.org/patch/msgid/20171125194155.355-1-chris@chris-wilson.co.uk
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- 24 Nov, 2017 15 commits
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Michal Wajdeczko authored
We should be consistent on naming of similar definitions. Signed-off-by:
Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Cc: Sagar Arun Kamble <sagar.a.kamble@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171124170239.29360-1-michal.wajdeczko@intel.comReviewed-by:
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Tvrtko Ursulin authored
Chris has discovered that RC6, RC6p and RC6pp counters are mutually exclusive, and even that on some SNB SKUs you get RC6p increasing, and on the others RC6. Furthermore RC6p and RC6pp were only present starting from GEN6 until, GEN7, not including Haswell. All this combined makes it questionable whether we need to reserve new ABI for these counters. One idea was to just combine them all under the RC6 counter to simplify things for userspace. So that is what this patch does. Signed-off-by:
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Chris Wilson authored
Instead of sleeping for a fixed 1ms (roughly, depending on timer slack), start with a small sleep and exponentially increase the sleep on each cycle. A good example of a beneficiary is the guc mmio communication channel. Typically we expect (and so spin) for 10us for a quick response, but this doesn't cover everything and so sometimes we fallback to the millisecond+ sleep. This incurs a significant delay in time-critical operations like preemption (igt/gem_exec_latency), which can be improved significantly by using a small sleep after the spin fails. We've made this suggestion many times, but had little experimental data to support adding the complexity. v2: Bump the minimum usleep to 10us on advice of Documentation/timers/timers-howto.txt (Tvrko) v3: Specify min, max range for usleep intervals -- some code may crucially depend upon and so want to specify the sleep pattern. References: 1758b90e ("drm/i915: Use a hybrid scheme for fast register waits") Signed-off-by:
Michał Winiarski <michal.winiarski@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171124130031.20761-2-chris@chris-wilson.co.uk
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Chris Wilson authored
Since we know that the port is empty, we do not need to extract the count from the old request it and copy it over to the new request, or attempt to unref the NULL old request pointer. Signed-off-by:
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Chris Wilson authored
Our execlist emulation is intended to only use a maximum of 2 ports per engine, so as to not overflow the wq. (By knowing the limits, we can avoid having to handle the wq exhaustion.) However, upon adding preemption, we lost the skip over the first port if set for the non-preemption path. Restore it. Reported-by:
Mika Kuoppala <mika.kuoppala@linux.intel.com> Fixes: c41937fd ("drm/i915/guc: Preemption! With GuC") Signed-off-by:
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Ville Syrjälä authored
The hardware always writes one or two bytes in the index portion of an indexed transfer. Make sure the message we send as the index doesn't have a zero length. Cc: stable@vger.kernel.org Cc: Daniel Kurtz <djkurtz@chromium.org> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Sean Paul <seanpaul@chromium.org> Fixes: 56f9eac0 ("drm/i915/intel_i2c: use INDEX cycles for i2c read transactions") Signed-off-by:
Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171123194157.25367-3-ville.syrjala@linux.intel.comReviewed-by:
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Ville Syrjälä authored
We can only specify the one slave address to indexed reads/writes. Make sure the messages we check are destined to the same slave address before deciding to do an indexed transfer. Cc: stable@vger.kernel.org Cc: Daniel Kurtz <djkurtz@chromium.org> Cc: Chris Wilson <chris@chris-wilson.co.uk> Cc: Daniel Vetter <daniel.vetter@ffwll.ch> Cc: Sean Paul <seanpaul@chromium.org> Fixes: 56f9eac0 ("drm/i915/intel_i2c: use INDEX cycles for i2c read transactions") Signed-off-by:
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Tvrtko Ursulin authored
Averaging with the previous sample brings a small statistical improvement to sampling counters, but can leek a little bit of state from a current client to the next which mulls the border between past and present for observing clients. This is because on event enable clients record the current counter value and use it as reference, but with rapid off-on event cycles, and due the delayed nature of sampling timer self-disarm, previous sample value does not get cleared under these circumstances. Solution is to stop averaging with the previous sample. This has a small downside of losing some precision with short and spiky signals, but the alternatives look too complicated for the benefit. Signed-off-by:
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Chris Wilson authored
Ensure that we build our test kernels with DEBUG_FS enabled as many of our igt tests require poking around debugfs/dri. This should also fixup the kbuild complaint that we tried to select SW_SYNC without meeting its dependencies. Reported-by: kbuild-all@01.org Signed-off-by:
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Michal Wajdeczko authored
We are using intel_ prefix for all file names with hardware related definitions. GuC registers also fall into this category. Signed-off-by:
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Sagar Arun Kamble authored
While renaming i915_guc_submission.h to intel_guc_submission.h, update of header guard name to _INTEL_GUC_SUBMISSION_H_ was missed. References: a2695744 (drm/i915/guc: Rename i915_guc_submission.c|h to intel_guc_submission.c|h) Signed-off-by:
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Tvrtko Ursulin authored
We do two things, both of which are purely to simplify and clarify the implementation: 1. Simplify the CPU online callback so it is more obvious that the purpose there is to set a single CPU mask bit for the first CPU which comes online. Using cpumask_weight for this reads more obvious than the trick with cpumask_and_any. 2. Modify the event init so that events can be created only on a single CPU. This removes looking at the requested CPU thread siblings, and only allows creating on the current active CPU. Signed-off-by:
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Chris Wilson authored
Even for static CPU configurations, the hotplug CPU framework is still used to determine the CPU topology, and is still being used by the perf event register to check for valid CPUs. Fixes: b46a33e2 ("drm/i915/pmu: Expose a PMU interface for perf queries") Signed-off-by:
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Chris Wilson authored
Since the removal of the delayed rc6 enabling, we now setup and drop the early rpm wakeref during modules initialisation before we start the live selftests. As such, we are now detecting errors in the tests where we were not holding the required wakeref for various actions. As rpm is not the primary goal of the tests involved, take a coarse and convenient rpm wakeref around the tests. Signed-off-by:
Matthew Auld <matthew.william.auld@gmail.com>
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Chris Wilson authored
We pretend the PMU config id is a pointer value when encoding it into the device parameters for presentation via sysfs. This requires casting of an unsigned long into and out of the pointer member, which annoys smatch: drivers/gpu/drm/i915/i915_pmu.c:684 i915_pmu_event_show() warn: argument 3 to %lx specifier is cast from pointer Instead of abusing a generic dev_ext_attribute, define our own typesafe attributes. Signed-off-by:
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- 23 Nov, 2017 10 commits
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Chris Wilson authored
The legacy i915_switch_context() is only applicable to the legacy ringbuffer submission method, so move it from the general i915_gem_context.c to intel_ringbuffer.c (rename pending!). Signed-off-by:
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Chris Wilson authored
The legacy context switch for ringbuffer submission is multistaged, where each of those stages may fail. However, we were updating global state after some stages, and so we had to force the incomplete request to be submitted because we could not unwind. Save the global state before performing the switches, and so enable us to unwind back to the previous global state should any phase fail. We then must cancel the request instead of submitting it should the construction fail. v2: s/saved_ctx/from_ctx/; s/ctx/to_ctx/ etc. Signed-off-by:
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Matthew Auld authored
For igt_write_huge make sure the higher gtt offsets don't feel left out, which is especially true when dealing with the 48b PPGTT, where we timeout long before we are able exhaust the address space. v2: just use IGT_TIMEOUT Suggested-by:
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Matthew Auld authored
Rather than repeat the test for each engine, which takes a long time, let's try alternating between the engines in some randomized order. v2: fix gen2 blunder fix !order blunder more cunning permutation construction! Suggested-by: -
Daniel Vetter authored
This goes back to pre-atomic, where due to intermediate dpms states connectors and encoder states might indeed not have matched. With atomic that's all smashed together (and hopefully no bios ever enables a vga output in dpms standby/suspedn state or we're toast). In commit 873ffe69 Author: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Date: Wed Aug 5 12:37:07 2015 +0200 drm/i915: Remove connectors_active from sanitization, v2. sanitize_encoders was changed to disable the encoder in all cases, which made the comment obsolete. Remove the misleading comment. Reported-by:
Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Signed-off-by:
Daniel Vetter <daniel.vetter@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20171121094241.9129-1-daniel.vetter@ffwll.ch
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Daniel Vetter authored
Two bits: - check actual atomic state, the legacy stuff can only be looked at from within the atomic_commit_tail function, since it's only protected by ordering and not by any locks. - Make sure we don't wreak the work an ongoing nonblocking commit is doing. v2: We need the crtc lock too, because a plane update might change it without having to acquire the connection_mutex (Maarten). Use Maarten's changes for this locking, while keeping the logic that uses the connection->commit->hw_done signal for syncing with nonblocking commits. v3: The initial state objects from the hw state readout do not have a commit object. Check for that (spotted by CI). v4: Fix deadlock from jumping to put_power with locks still held. (mlankhorst) Cc: Manasi Navare <manasi.d.navare@intel.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> References: https://bugs.freedesktop.org/show_bug.cgi?id=103336 Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99272Signed-off-by: -
Tvrtko Ursulin authored
When turning off the engines, and the pmu sampling, clear the previous value as the current measurement should be 0. v2: Use a for-loop v3: * Move clearing to timer self-dis-arm to avoid race with parking. * Clear frequency samples as well. v4: * Init frequency to idle_freq. (Chris Wilson) Signed-off-by:
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Tvrtko Ursulin authored
We have agreed during the engine classes discussion that fields marked as non-ABI are better left out altogether from uapi headers. v2: Use a local define for maintanability. (Chris Wilson) Signed-off-by:
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Anusha Srivatsa authored
There is a new version of DMC available for KBL. The release notes mentions: 1. Fix for the issue where DC_STATE was getting enabled even when disabled by driver causing data corruption. v2: Remove pull request from commit message (Rodrigo). Cc: Rodrigo Vivi <rodrigo.vivi@intel.com> Signed-off-by:
Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1510253503-12634-1-git-send-email-anusha.srivatsa@intel.com
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Chris Wilson authored
Since commit 6060b6ae ("drm/i915/pmu: Add RC6 residency metrics"), vlv_residency_raw() may be called from an irq-disabled context (via perf event sampling on remote cpu). As such, we can no longer assume that we are called from process context and must save/restore the irq state for the spinlock. Fixes: 6060b6ae ("drm/i915/pmu: Add RC6 residency metrics") Testcase: igt/perf_pmu/other-init-3 Signed-off-by:
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- 22 Nov, 2017 1 commit
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Chris Wilson authored
We don't need struct_mutex to initialise userptr (it just allocates a workqueue for itself etc), but we do need struct_mutex later on in i915_gem_init() in order to feed requests onto the HW. This should break the chain [ 385.697902] ====================================================== [ 385.697907] WARNING: possible circular locking dependency detected [ 385.697913] 4.14.0-CI-Patchwork_7234+ #1 Tainted: G U [ 385.697917] ------------------------------------------------------ [ 385.697922] perf_pmu/2631 is trying to acquire lock: [ 385.697927] (&mm->mmap_sem){++++}, at: [<ffffffff811bfe1e>] __might_fault+0x3e/0x90 [ 385.697941] but task is already holding lock: [ 385.697946] (&cpuctx_mutex){+.+.}, at: [<ffffffff8116fe8c>] perf_event_ctx_lock_nested+0xbc/0x1d0 [ 385.697957] which lock already depends on the new lock. [ 385.697963] the existing dependency chain (in reverse order) is: [ 385.697970] -> #4 (&cpuctx_mutex){+.+.}: [ 385.697980] __mutex_lock+0x86/0x9b0 [ 385.697985] perf_event_init_cpu+0x5a/0x90 [ 385.697991] perf_event_init+0x178/0x1a4 [ 385.697997] start_kernel+0x27f/0x3f1 [ 385.698003] verify_cpu+0x0/0xfb [ 385.698006] -> #3 (pmus_lock){+.+.}: [ 385.698015] __mutex_lock+0x86/0x9b0 [ 385.698020] perf_event_init_cpu+0x21/0x90 [ 385.698025] cpuhp_invoke_callback+0xca/0xc00 [ 385.698030] _cpu_up+0xa7/0x170 [ 385.698035] do_cpu_up+0x57/0x70 [ 385.698039] smp_init+0x62/0xa6 [ 385.698044] kernel_init_freeable+0x97/0x193 [ 385.698050] kernel_init+0xa/0x100 [ 385.698055] ret_from_fork+0x27/0x40 [ 385.698058] -> #2 (cpu_hotplug_lock.rw_sem){++++}: [ 385.698068] cpus_read_lock+0x39/0xa0 [ 385.698073] apply_workqueue_attrs+0x12/0x50 [ 385.698078] __alloc_workqueue_key+0x1d8/0x4d8 [ 385.698134] i915_gem_init_userptr+0x5f/0x80 [i915] [ 385.698176] i915_gem_init+0x7c/0x390 [i915] [ 385.698213] i915_driver_load+0x99e/0x15c0 [i915] [ 385.698250] i915_pci_probe+0x33/0x90 [i915] [ 385.698256] pci_device_probe+0xa1/0x130 [ 385.698262] driver_probe_device+0x293/0x440 [ 385.698267] __driver_attach+0xde/0xe0 [ 385.698272] bus_for_each_dev+0x5c/0x90 [ 385.698277] bus_add_driver+0x16d/0x260 [ 385.698282] driver_register+0x57/0xc0 [ 385.698287] do_one_initcall+0x3e/0x160 [ 385.698292] do_init_module+0x5b/0x1fa [ 385.698297] load_module+0x2374/0x2dc0 [ 385.698302] SyS_finit_module+0xaa/0xe0 [ 385.698307] entry_SYSCALL_64_fastpath+0x1c/0xb1 [ 385.698311] -> #1 (&dev->struct_mutex){+.+.}: [ 385.698320] __mutex_lock+0x86/0x9b0 [ 385.698361] i915_mutex_lock_interruptible+0x4c/0x130 [i915] [ 385.698403] i915_gem_fault+0x206/0x760 [i915] [ 385.698409] __do_fault+0x1a/0x70 [ 385.698413] __handle_mm_fault+0x7c4/0xdb0 [ 385.698417] handle_mm_fault+0x154/0x300 [ 385.698440] __do_page_fault+0x2d6/0x570 [ 385.698445] page_fault+0x22/0x30 [ 385.698449] -> #0 (&mm->mmap_sem){++++}: [ 385.698459] lock_acquire+0xaf/0x200 [ 385.698464] __might_fault+0x68/0x90 [ 385.698470] _copy_to_user+0x1e/0x70 [ 385.698475] perf_read+0x1aa/0x290 [ 385.698480] __vfs_read+0x23/0x120 [ 385.698484] vfs_read+0xa3/0x150 [ 385.698488] SyS_read+0x45/0xb0 [ 385.698493] entry_SYSCALL_64_fastpath+0x1c/0xb1 [ 385.698497] other info that might help us debug this: [ 385.698505] Chain exists of: &mm->mmap_sem --> pmus_lock --> &cpuctx_mutex [ 385.698517] Possible unsafe locking scenario: [ 385.698522] CPU0 CPU1 [ 385.698526] ---- ---- [ 385.698529] lock(&cpuctx_mutex); [ 385.698553] lock(pmus_lock); [ 385.698558] lock(&cpuctx_mutex); [ 385.698564] lock(&mm->mmap_sem); [ 385.698568] *** DEADLOCK *** [ 385.698574] 1 lock held by perf_pmu/2631: [ 385.698578] #0: (&cpuctx_mutex){+.+.}, at: [<ffffffff8116fe8c>] perf_event_ctx_lock_nested+0xbc/0x1d0 [ 385.698589] stack backtrace: [ 385.698595] CPU: 3 PID: 2631 Comm: perf_pmu Tainted: G U 4.14.0-CI-Patchwork_7234+ #1 [ 385.698602] Hardware name: /NUC6CAYB, BIOS AYAPLCEL.86A.0040.2017.0619.1722 06/19/2017 [ 385.698609] Call Trace: [ 385.698615] dump_stack+0x5f/0x86 [ 385.698621] print_circular_bug.isra.18+0x1d0/0x2c0 [ 385.698627] __lock_acquire+0x19c3/0x1b60 [ 385.698634] ? generic_exec_single+0x77/0xe0 [ 385.698640] ? lock_acquire+0xaf/0x200 [ 385.698644] lock_acquire+0xaf/0x200 [ 385.698650] ? __might_fault+0x3e/0x90 [ 385.698655] __might_fault+0x68/0x90 [ 385.698660] ? __might_fault+0x3e/0x90 [ 385.698665] _copy_to_user+0x1e/0x70 [ 385.698670] perf_read+0x1aa/0x290 [ 385.698675] __vfs_read+0x23/0x120 [ 385.698682] ? __fget+0x101/0x1f0 [ 385.698686] vfs_read+0xa3/0x150 [ 385.698691] SyS_read+0x45/0xb0 [ 385.698696] entry_SYSCALL_64_fastpath+0x1c/0xb1 [ 385.698701] RIP: 0033:0x7ff1c46876ed [ 385.698705] RSP: 002b:00007fff13552f90 EFLAGS: 00000293 ORIG_RAX: 0000000000000000 [ 385.698712] RAX: ffffffffffffffda RBX: ffffc90000647ff0 RCX: 00007ff1c46876ed [ 385.698718] RDX: 0000000000000010 RSI: 00007fff13552fa0 RDI: 0000000000000005 [ 385.698723] RBP: 000056063d300580 R08: 0000000000000000 R09: 0000000000000060 [ 385.698729] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000000046 [ 385.698734] R13: 00007fff13552c6f R14: 00007ff1c6279d00 R15: 00007ff1c6279a40 Testcase: igt/perf_pmu Signed-off-by:
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