- 20 Nov, 2019 21 commits
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Stuart Summers authored
GuC submission path can be called from an interrupt context and so should use a worker to avoid holding a mutex. References: 07779a76 ("drm/i915: Mark up the calling context for intel_wakeref_put()") Signed-off-by:
Stuart Summers <stuart.summers@intel.com> Cc: Chris Wilson <chris@chris-wilson.co.uk> Reviewed-by:
Chris Wilson <chris@chris-wilson.co.uk> Signed-off-by:
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Chris Wilson authored
pm_suspend_target_state is declared under CONFIG_PM_SLEEP but only defined under CONFIG_SUSPEND. Play safe and only use the symbol if it is both declared and defined. Reported-by: kbuild-all@lists.01.org Signed-off-by:
Joonas Lahtinen <joonas.lahtinen@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191120182209.3967833-1-chris@chris-wilson.co.uk
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Chris Wilson authored
Now that we never allow the intel_wakeref callbacks to be invoked from interrupt context, we do not need the irqsafe spinlock for the timeline. Signed-off-by:
Tvrtko Ursulin <tvrtko.ursulin@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191120170858.3965380-1-chris@chris-wilson.co.uk
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Chris Wilson authored
In commit a79ca656 ("drm/i915: Push the wakeref->count deferral to the backend"), I erroneously concluded that we last modify the engine inside __i915_request_commit() meaning that we could enable concurrent submission for userspace as we enqueued this request. However, this falls into a trap with other users of the engine->kernel_context waking up and submitting their request before the idle-switch is queued, with the result that the kernel_context is executed out-of-sequence most likely upsetting the GPU and certainly ourselves when we try to retire the out-of-sequence requests. As such we need to hold onto the effective engine->kernel_context mutex lock (via the engine pm mutex proxy) until we have finish queuing the request to the engine. v2: Serialise against concurrent intel_gt_retire_requests() v3: Describe the hairy locking scheme with intel_gt_retire_requests() for future reference. v4: Combine timeline->lock and engine pm release; it's hairy. Fixes: a79ca656 ("drm/i915: Push the wakeref->count deferral to the backend") Signed-off-by:
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Chris Wilson authored
The general concept was that intel_timeline.active_count was locked by the intel_timeline.mutex. The exception was for power management, where the engine->kernel_context->timeline could be manipulated under the global wakeref.mutex. This was quite solid, as we always manipulated the timeline only while we held an engine wakeref. And then we started retiring requests outside of struct_mutex, only using the timelines.active_list and the timeline->mutex. There we started manipulating intel_timeline.active_count outside of an engine wakeref, and so introduced a race between __engine_park() and intel_gt_retire_requests(), a race that could result in the engine->kernel_context not being added to the active timelines and so losing requests, which caused us to keep the system permanently powered up [and unloadable]. The race would be easy to close if we could take the engine wakeref for the timeline before we retire -- except timelines are not bound to any engine and so we would need to keep all active engines awake. The alternative is to guard intel_timeline_enter/intel_timeline_exit for use outside of the timeline->mutex. Fixes: e5dadff4 ("drm/i915: Protect request retirement with timeline->mutex") Signed-off-by:
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Chris Wilson authored
Previously, we assumed we could use mutex_trylock() within an atomic context, falling back to a worker if contended. However, such trickery is illegal inside interrupt context, and so we need to always use a worker under such circumstances. As we normally are in process context, we can typically use a plain mutex, and only defer to a work when we know we are being called from an interrupt path. Fixes: 51fbd8de ("drm/i915/pmu: Atomically acquire the gt_pm wakeref") References: a0855d24 ("locking/mutex: Complain upon mutex API misuse in IRQ contexts") References: https://bugs.freedesktop.org/show_bug.cgi?id=111626Signed-off-by:
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Stuart Summers authored
When display is not available, finding the memory bandwidth available for display is not useful. Skip this sequence here. References: HSDES 1209978255 Signed-off-by:
Ville Syrjälä <ville.syrjala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191120011016.18049-1-stuart.summers@intel.com
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Stuart Summers authored
Platforms without display do not map the MCHBAR MMIO into the GFX device BAR. Skip this sequence when display is not available. Signed-off-by:
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Ville Syrjälä authored
Just pass the atomic state+crtc to the .crtc_enable() .crtc_disable(). Life is easier when you don't have to think whether to pass the old or the new crtc state. Reviewed-by:
Manasi Navare <manasi.d.navare@intel.com> Signed-off-by:
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Ville Syrjälä authored
Rename pipe_config to new_crtc_state in the .crtc_enable() hooks. The 'pipe_config' name is a zombie that we need to finally put down. Reviewed-by:
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Ville Syrjälä authored
Get rid of the horrible aliasing drm_crtc and intel_crtc variables in the crtc enable/disable hooks. Reviewed-by:
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Ville Syrjälä authored
Get rid of the last 'dev' usage in ironlake_crtc_enable() by passing dev_priv to cpt_verify_modeset(). Reviewed-by:
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Ville Syrjälä authored
Just pass the atomic_state+crtc to the watermarks hooks. Eeasier time for the caller when it doesn't have to think what to pass. Reviewed-by:
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Ville Syrjälä authored
Switch to intel_crtc from drm_crtc. Reviewed-by:
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Ville Syrjälä authored
intel_modeset_setup_hw_state() doesn't need the crtc_state at the top level scope. Move it to where it's needed. Reviewed-by:
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Ville Syrjälä authored
Move the assert_vblank_disabled() into intel_crtc_vblank_on() so that we don't have to inline it all over. This does mean we now assert_vblank_disabled() during readout as well but that is totally fine as it happens after drm_crtc_vblank_reset(). One can even argue it's what we want to do anyway to make sure the reset actually happened. Reviewed-by:
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Ville Syrjälä authored
We already have intel_crtc_vblank_on(). Add a counterpart so we don't have to inline the disable+assert all over. Reviewed-by:
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Ville Syrjälä authored
Just pass the atomic state and the crtc to intel_encoders_enable() & co. Make life simpler when you don't have to think which state (old vs. new) you have to pass in. Also constify the states while at it. Reviewed-by:
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Jani Nikula authored
Merge tag 'topic/drm-mipi-dsi-dsc-updates-2019-11-11' of git://anongit.freedesktop.org/drm/drm-intel into drm-intel-next-queued Core Changes: - Update DSI data type and command definitions - Add helpers for sending compression mode and PPS packets Driver Changes: - Update tiny/st7586 to reflect a definition change Signed-off-by:
Jani Nikula <jani.nikula@intel.com> From: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/87tv7a4eq3.fsf@intel.com
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Chris Wilson authored
i915_request_add() consumes the passed in reference to the i915_request, so if the selftest caller wishes to wait upon it afterwards, it needs to take a reference for itself. Signed-off-by:
Matthew Auld <matthew.auld@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191120102741.3734346-1-chris@chris-wilson.co.uk
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Chris Wilson authored
When setting up a full GGTT, we expect the next insert to fail with -ENOSPC. Simplify the use of ERR_PTR to not confuse either the reader or smatch. Reported-by:
Dan Carpenter <dan.carpenter@oracle.com> References: f40a7b75 ("drm/i915: Initial selftests for exercising eviction") Signed-off-by:
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- 19 Nov, 2019 15 commits
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Chris Wilson authored
Reading from CTX_INFO upsets rc6, requiring us to detect and prevent possible rc6 context corruption. Poke at the bear! Signed-off-by:
Andi Shyti <andi.shyti@intel.com> Tested-by:
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Chris Wilson authored
When waiting for idle, serialise with any ongoing callback so that it will have completed before completing the wait. Signed-off-by:
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Chris Wilson authored
Since igt now defaults to not enabling ftrace-on-oops, we need to manually invoke GEM_TRACE_DUMP() to see the debug log prior to a GEM_BUG_ON panicking. Signed-off-by:
Mika Kuoppala <mika.kuoppala@linux.intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191119100929.2628356-1-chris@chris-wilson.co.uk
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Chris Wilson authored
Retire all requests if we resort to wedged the driver on suspend. They will now be idle, so we might as we free them before shutting down. Signed-off-by:
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Chris Wilson authored
As we may park the gt during request retirement, we may cancel the retirement worker only to then program the delayed worker once more. If we schedule the next delayed retirement worker first, if we then park the gt, the work will remain cancelled. Signed-off-by:
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Chris Wilson authored
When adding a new active timeline, place it at the end of the list. This allows for intel_gt_retire_requests() to pick up the newcomer more quickly and hopefully complete the retirement sooner. A miniscule optimisation. References: 7936a22d ("drm/i915/gt: Wait for new requests in intel_gt_retire_requests()") Signed-off-by:
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Matthew Auld authored
For our current users we don't expect pool objects to be writable from the gpu. Signed-off-by:
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Matt Roper authored
The bspec initially provided a single DKL PHY vswing table for both HDMI and DP, but was recently updated to include an independent table for HDMI. Bspec: 49292 Fixes: 978c3e53 ("drm/i915/tgl: Add dkl phy programming sequences") Cc: Clinton A Taylor <clinton.a.taylor@intel.com> Cc: Lucas De Marchi <lucas.demarchi@intel.com> Signed-off-by:
Matt Roper <matthew.d.roper@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/20191118180219.9309-1-matthew.d.roper@intel.comReviewed-by:
José Roberto de Souza <jose.souza@intel.com>
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Vandita Kulkarni authored
As per the Bspec, port mapping is fixed for mipi dsi. v2: Reuse the existing function (Jani) Signed-off-by:
Vandita Kulkarni <vandita.kulkarni@intel.com> Signed-off-by:
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Chris Wilson authored
Take the obj->vma.lock to prevent modifications to the list as we iterate, to avoid the dreaded NULL pointer. <1>[ 347.820823] BUG: kernel NULL pointer dereference, address: 0000000000000150 <1>[ 347.820856] #PF: supervisor read access in kernel mode <1>[ 347.820874] #PF: error_code(0x0000) - not-present page <6>[ 347.820892] PGD 0 P4D 0 <4>[ 347.820908] Oops: 0000 [#1] PREEMPT SMP NOPTI <4>[ 347.820926] CPU: 3 PID: 1303 Comm: gem_persistent_ Tainted: G U 5.4.0-rc7-CI-CI_DRM_7352+ #1 <4>[ 347.820956] Hardware name: /NUC6CAYB, BIOS AYAPLCEL.86A.0049.2018.0508.1356 05/08/2018 <4>[ 347.821132] RIP: 0010:i915_gem_object_flush_write_domain+0xd9/0x1d0 [i915] <4>[ 347.821157] Code: 0f 84 e9 00 00 00 48 8b 80 e0 fd ff ff f6 c4 40 75 11 e9 ed 00 00 00 48 8b 80 e0 fd ff ff f6 c4 40 74 26 48 8b 83 b0 00 00 00 <48> 8b b8 50 01 00 00 e8 fb 20 fb ff 48 8b 83 30 03 00 00 49 39 c4 <4>[ 347.821210] RSP: 0018:ffffc90000a1f8f8 EFLAGS: 00010202 <4>[ 347.821229] RAX: 0000000000000000 RBX: ffffc900008479a0 RCX: 0000000000000018 <4>[ 347.821252] RDX: 0000000000000000 RSI: 000000000000000d RDI: ffff888275a090b0 <4>[ 347.821274] RBP: ffff8882673c8040 R08: ffff88825991b8d0 R09: 0000000000000000 <4>[ 347.821297] R10: 0000000000000000 R11: 0000000000000000 R12: ffff8882673c8280 <4>[ 347.821319] R13: ffff8882673c8368 R14: 0000000000000000 R15: ffff888266a54000 <4>[ 347.821343] FS: 00007f75865f4240(0000) GS:ffff888277b80000(0000) knlGS:0000000000000000 <4>[ 347.821368] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 <4>[ 347.821389] CR2: 0000000000000150 CR3: 000000025aee0000 CR4: 00000000003406e0 <4>[ 347.821411] Call Trace: <4>[ 347.821555] i915_gem_object_prepare_read+0xea/0x2a0 [i915] <4>[ 347.821706] intel_engine_cmd_parser+0x5ce/0xe90 [i915] <4>[ 347.821834] ? __i915_sw_fence_complete+0x1a0/0x250 [i915] <4>[ 347.821990] i915_gem_do_execbuffer+0xb4c/0x2550 [i915] Signed-off-by:
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Chris Wilson authored
We only need the one loop to find the dirty vma flush them and their chipset. Signed-off-by:
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Chris Wilson authored
When userspace writes into the GTT itself, it is supposed to call set-domain to let the kernel keep track and so manage the CPU/GPU caches. As we track writes on the individual i915_vma, we should also be sure to mark them as dirty. Signed-off-by:
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Chris Wilson authored
In order to avoid some nasty mutex inversions, commit 09c5ab38 ("drm/i915: Keep rings pinned while the context is active") allowed the intel_ring unpinning to be run concurrently with the next context pinning it. Thus each step in intel_ring_unpin() needed to be atomic and ordered in a nice onion with intel_ring_pin() so that the lifetimes overlapped and were always safe. Sadly, a few steps in intel_ring_unpin() were overlooked, such as closing the read/write pointers of the ring and discarding the intel_ring.vaddr, as these steps were not serialised with intel_ring_pin() and so could leave the ring in disarray. Fixes: 09c5ab38 ("drm/i915: Keep rings pinned while the context is active") Signed-off-by:
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Chris Wilson authored
Only serialise with the chipset using an mmio if the chipset is currently active. We expect that any writes into the chipset range will simply be forgotten until it wakes up. Signed-off-by:
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Matt Roper authored
The bspec was recently updated with new cdclk -> voltage level tables to accommodate the new 324/326.4 cdclk values. Bspec: 21809 Fixes: 63c9dae7 ("drm/i915/ehl: Add voltage level requirement table") Cc: José Roberto de Souza <jose.souza@intel.com> Cc: Vivek Kasireddy <vivek.kasireddy@intel.com> Cc: Bob Paauwe <bob.j.paauwe@intel.com> Signed-off-by:
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- 18 Nov, 2019 4 commits
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Lucas De Marchi authored
When we call intel_dsb_get(), the dsb initialization may fail for various reasons. We already log the error message in that path, making it unnecessary to trigger a warning that refcount == 0 when calling intel_dsb_put(). So here we simplify the logic and do lazy shutdown: leaving the extra refcount alive so when we call intel_dsb_put() we end up calling i915_vma_unpin_and_release(). Signed-off-by:
Lucas De Marchi <lucas.demarchi@intel.com> Reviewed-by:
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Lucas De Marchi authored
The current dsb API is not really prepared to handle multithread access. I was debugging an issue that ended up fixed by commit a096883d ("drm/i915/dsb: Remove PIN_MAPPABLE from the DSB object VMA") and was puzzled how these atomic operations were guaranteeing atomicity. if (atomic_add_return(1, &dsb->refcount) != 1) return dsb; Thread A could still be initializing dsb struct (and even fail in the middle) while thread B would take a reference and use it (even derefencing a NULL cmd_buf). I don't think the atomic operations here will help much if this were to support multithreaded scenario in future, so just remove them to avoid confusion. v2: Use refcount++ != 0 instead of ++refcount != 1 (from Ville) Signed-off-by:
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José Roberto de Souza authored
When the connector has VCPI allocated and is being moved to another pipe it causes drm_dp_atomic_release_vcpi_slots() and drm_dp_atomic_find_vcpi_slots() to be called in the same atomic check causing the error bellow. This happens because at this point Intel's hw.enable(and all other flags in the same struct) is not set but checking to on the uapi one it have the expected value. [ 580.804430] ------------[ cut here ]------------ [ 580.804436] WARNING: CPU: 0 PID: 1221 at drivers/gpu/drm/drm_dp_mst_topology.c:4094 drm_dp_atomic_find_vcpi_slots+0x157/0x180 [ 580.804439] Modules linked in: cdc_ether r8152 i915 prime_numbers snd_hda_codec_hdmi snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hwdep asix snd_hda_core x86_pkg_temp_thermal usbnet mei_hdcp coretemp mii mei_me crct10dif_pclmul snd_pcm crc32_pclmul mei ghash_clmulni_intel i2c_i801 [last unloaded: prime_numbers] [ 580.804462] CPU: 0 PID: 1221 Comm: kworker/0:0 Tainted: G W 5.4.0-rc7-zeh+ #1226 [ 580.804465] Hardware name: Intel Corporation Tiger Lake Client Platform/TigerLake U DDR4 SODIMM RVP, BIOS TGLSFWI1.D00.2321.A09.1909250226 09/25/2019 [ 580.804470] Workqueue: events output_poll_execute [ 580.804476] RIP: 0010:drm_dp_atomic_find_vcpi_slots+0x157/0x180 [ 580.804481] Code: 6a ff ff ff 49 89 6d 08 4c 89 6b 10 4c 89 63 18 49 89 6e 08 e9 55 ff ff ff 41 89 c7 5b 5d 44 89 f8 41 5c 41 5d 41 5e 41 5f c3 <0f> 0b 48 c7 c7 08 73 11 82 48 89 ee 41 bf ea ff ff ff e8 b2 e3 02 [ 580.804484] RSP: 0018:ffffc900009b7ab8 EFLAGS: 00010246 [ 580.804488] RAX: ffff88848c04ef50 RBX: ffff88848c04ef40 RCX: 0000000000000214 [ 580.804492] RDX: ffff88848c04f5e0 RSI: ffff888486eb2c68 RDI: ffff88848e518800 [ 580.804495] RBP: ffff88849d339000 R08: 00000000bc4e1092 R09: 0000000000000000 [ 580.804498] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88848c04e728 [ 580.804501] R13: 0000000000000214 R14: ffff88848c04e720 R15: ffff888486eb2c68 [ 580.804504] FS: 0000000000000000(0000) GS:ffff8884a0000000(0000) knlGS:0000000000000000 [ 580.804507] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 580.804510] CR2: 00007ff6bf1ba680 CR3: 0000000005210003 CR4: 0000000000760ef0 [ 580.804512] PKRU: 55555554 [ 580.804515] Call Trace: [ 580.804574] intel_dp_mst_compute_config+0x193/0x2b0 [i915] [ 580.804636] intel_atomic_check+0x10cc/0x20b0 [i915] [ 580.804644] ? drm_atomic_print_old_state+0xf1/0x130 [ 580.804655] drm_atomic_check_only+0x56a/0x810 [ 580.804663] drm_atomic_commit+0xe/0x50 [ 580.804668] drm_client_modeset_commit_atomic+0x18b/0x220 [ 580.804680] drm_client_modeset_commit_force+0x4d/0x180 [ 580.804685] drm_fb_helper_restore_fbdev_mode_unlocked+0x46/0xa0 [ 580.804689] drm_fb_helper_set_par+0x27/0x50 [ 580.804692] drm_fb_helper_hotplug_event.part.0+0xa7/0xc0 [ 580.804696] drm_kms_helper_hotplug_event+0x21/0x30 [ 580.804699] output_poll_execute+0x1a4/0x1c0 [ 580.804706] process_one_work+0x25b/0x5b0 [ 580.804713] worker_thread+0x4b/0x3b0 [ 580.804720] kthread+0x100/0x140 [ 580.804723] ? process_one_work+0x5b0/0x5b0 [ 580.804725] ? kthread_park+0x80/0x80 [ 580.804730] ret_from_fork+0x24/0x50 [ 580.804740] irq event stamp: 40988 [ 580.804743] hardirqs last enabled at (40987): [<ffffffff81128567>] console_unlock+0x437/0x590 [ 580.804746] hardirqs last disabled at (40988): [<ffffffff81001cfa>] trace_hardirqs_off_thunk+0x1a/0x20 [ 580.804749] softirqs last enabled at (40972): [<ffffffff81c00389>] __do_softirq+0x389/0x47f [ 580.804752] softirqs last disabled at (40959): [<ffffffff810b6f19>] irq_exit+0xa9/0xc0 [ 580.804754] ---[ end trace 80052e0c60463c67 ]--- [ 580.804758] [drm:drm_dp_atomic_find_vcpi_slots] *ERROR* cannot allocate and release VCPI on [MST PORT:000000007880692e] in the same state [ 580.811370] [drm:intel_dp_hpd_pulse [i915]] got esi2 02 00 00 [ 580.817239] [drm:intel_dp_hpd_pulse [i915]] got esi 02 00 00 [ 580.817313] ------------[ cut here ]------------ [ 580.817318] WARNING: CPU: 0 PID: 1221 at drivers/gpu/drm/drm_dp_mst_topology.c:4094 drm_dp_atomic_find_vcpi_slots+0x157/0x180 [ 580.817321] Modules linked in: cdc_ether r8152 i915 prime_numbers snd_hda_codec_hdmi snd_hda_intel snd_intel_dspcfg snd_hda_codec snd_hwdep asix snd_hda_core x86_pkg_temp_thermal [ 580.817412] [drm:intel_dp_hpd_pulse [i915]] got hpd irq on [ENCODER:306:DDI E] - short [ 580.817413] usbnet mei_hdcp coretemp mii mei_me crct10dif_pclmul snd_pcm crc32_pclmul [ 580.817490] [drm:intel_dp_hpd_pulse [i915]] is_mst [ 580.817491] mei ghash_clmulni_intel i2c_i801 [last unloaded: prime_numbers] [ 580.817498] CPU: 0 PID: 1221 Comm: kworker/0:0 Tainted: G W 5.4.0-rc7-zeh+ #1226 [ 580.817503] Hardware name: Intel Corporation Tiger Lake Client Platform/TigerLake U DDR4 SODIMM RVP, BIOS TGLSFWI1.D00.2321.A09.1909250226 09/25/2019 [ 580.817506] Workqueue: events output_poll_execute [ 580.817511] RIP: 0010:drm_dp_atomic_find_vcpi_slots+0x157/0x180 [ 580.817514] Code: 6a ff ff ff 49 89 6d 08 4c 89 6b 10 4c 89 63 18 49 89 6e 08 e9 55 ff ff ff 41 89 c7 5b 5d 44 89 f8 41 5c 41 5d 41 5e 41 5f c3 <0f> 0b 48 c7 c7 08 73 11 82 48 89 ee 41 bf ea ff ff ff e8 b2 e3 02 [ 580.817516] RSP: 0018:ffffc900009b7ab8 EFLAGS: 00010246 [ 580.817519] RAX: ffff88848c04ef50 RBX: ffff88848c04ef40 RCX: 000000000000018f [ 580.817521] RDX: ffff88848c04f5e0 RSI: ffff888486eb2c68 RDI: ffff88848e518800 [ 580.817523] RBP: ffff88849d339000 R08: 00000000bc4e1092 R09: 0000000000000000 [ 580.817525] R10: 0000000000000000 R11: 0000000000000000 R12: ffff88848c04e728 [ 580.817528] R13: 000000000000018f R14: ffff88848c04e720 R15: ffff888486eb2c68 [ 580.817532] FS: 0000000000000000(0000) GS:ffff8884a0000000(0000) knlGS:0000000000000000 [ 580.817534] CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 [ 580.817535] CR2: 00007ff6bf1ba680 CR3: 0000000005210003 CR4: 0000000000760ef0 [ 580.817537] PKRU: 55555554 [ 580.817538] Call Trace: [ 580.817620] intel_dp_mst_compute_config+0x193/0x2b0 [i915] [ 580.817690] intel_atomic_check+0x10cc/0x20b0 [i915] [ 580.817697] ? drm_atomic_print_old_state+0xf1/0x130 [ 580.817711] drm_atomic_check_only+0x56a/0x810 [ 580.817721] drm_atomic_commit+0xe/0x50 [ 580.817726] drm_client_modeset_commit_atomic+0x18b/0x220 [ 580.817744] drm_client_modeset_commit_force+0x4d/0x180 [ 580.817751] drm_fb_helper_restore_fbdev_mode_unlocked+0x46/0xa0 [ 580.817756] drm_fb_helper_set_par+0x27/0x50 [ 580.817762] drm_fb_helper_hotplug_event.part.0+0xa7/0xc0 [ 580.817767] drm_kms_helper_hotplug_event+0x21/0x30 [ 580.817771] output_poll_execute+0x1a4/0x1c0 [ 580.817780] process_one_work+0x25b/0x5b0 [ 580.817791] worker_thread+0x4b/0x3b0 [ 580.817800] kthread+0x100/0x140 [ 580.817804] ? process_one_work+0x5b0/0x5b0 [ 580.817807] ? kthread_park+0x80/0x80 [ 580.817813] ret_from_fork+0x24/0x50 [ 580.817832] irq event stamp: 41028 [ 580.817838] hardirqs last enabled at (41027): [<ffffffff81128567>] console_unlock+0x437/0x590 [ 580.817841] hardirqs last disabled at (41028): [<ffffffff81001cfa>] trace_hardirqs_off_thunk+0x1a/0x20 [ 580.817846] softirqs last enabled at (41022): [<ffffffff81c00389>] __do_softirq+0x389/0x47f [ 580.817851] softirqs last disabled at (41013): [<ffffffff810b6f19>] irq_exit+0xa9/0xc0 [ 580.817854] ---[ end trace 80052e0c60463c68 ]--- [ 580.817858] [drm:drm_dp_atomic_find_vcpi_slots] *ERROR* cannot allocate and release VCPI on [MST PORT:000000007880692e] in the same state [ 580.830767] [drm:intel_dp_mst_compute_config [i915]] failed finding vcpi slots:-22 [ 580.830821] [drm:intel_atomic_check [i915]] Encoder config failure: -22 Cc: Lyude Paul <lyude@redhat.com> Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Cc: Lucas De Marchi <lucas.demarchi@intel.com> Signed-off-by:
Lyude Paul <lyude@redhat.com> Reviewed-by:
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Matt Roper authored
VBT revision 229 adds a new "Generic DTD" block 58 and deprecates the old LFP panel mode data in block 42. Let's start parsing this block to fill in the panel fixed mode on devices with a >=229 VBT. v2: * Update according to the recent updates: - DTD size is now 16 bits instead of 24 - polarity is now just a single bit for hsync and vsync and is properly documented * Minor checkpatch fix v3: * Now that panel options are parsed separately from the previous patch, move generic DTD parsing into a function parallel to parse_lfp_panel_dtd. We'll still fall back to looking at the legacy LVDS timing block if the generic DTD fails. (Jani) * Don't forget to actually set lfp_lvds_vbt_mode! (Jani) * Drop "bdb_" prefix from dtd entry structure. (Jani) * Follow C99 standard for structure's flexible array member. (Jani) v4: * Add "positive" to polarity field names for clarity. (Jani) * Move VBT version check and fallback to legacy DTD parsing logic to a helper to keep top-level VBT parsing uncluttered. (Jani) * Restructure reserved bit packing at end of generic_dtd_entry from "u32 rsvd:24" to "u8 rsvd[3]" to prevent copy/paste mistakes in the future. (Jani) Bspec: 54751 Bspec: 20148 Cc: Jani Nikula <jani.nikula@intel.com> Signed-off-by:
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