| Age | Commit message (Collapse) | Author |
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The wopcm registers are write-once, so any write after the first one
will just be ignored. The registers survive a GPU reset but not
always a suspend/resume cycle, so to keep things simple keep the
writes in the intel_uc_init_hw function instead of moving it earlier
to make sure we attempt them every time we try to load GuC.
Cc: Jeff McGee <jeff.mcgee@intel.com>
Cc: Anusha Srivatsa <anusha.srivatsa@intel.com>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1491524332-23860-1-git-send-email-daniele.ceraolospurio@intel.com
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[31908.547136] BUG: KASAN: use-after-free in intel_lpe_audio_teardown+0x78/0xb0 [i915] at addr ffff8801f7788358
[31908.547297] Read of size 8 by task drv_selftest/3781
[31908.547405] CPU: 0 PID: 3781 Comm: drv_selftest Tainted: G BU W 4.10.0+ #451
[31908.547553] Hardware name: / , BIOS PYBSWCEL.86A.0027.2015.0507.1758 05/07/2015
[31908.547682] Call Trace:
[31908.547772] dump_stack+0x68/0x9f
[31908.547857] kasan_object_err+0x1c/0x70
[31908.547947] kasan_report_error+0x1f1/0x4f0
[31908.548038] ? kfree+0xaa/0x170
[31908.548121] kasan_report+0x34/0x40
[31908.548211] ? klist_children_get+0x20/0x30
[31908.548472] ? intel_lpe_audio_teardown+0x78/0xb0 [i915]
[31908.548567] __asan_load8+0x5e/0x70
[31908.548824] intel_lpe_audio_teardown+0x78/0xb0 [i915]
[31908.549080] intel_audio_deinit+0x28/0x80 [i915]
[31908.549315] i915_driver_unload+0xe4/0x360 [i915]
[31908.549551] ? i915_driver_load+0x1d70/0x1d70 [i915]
[31908.549651] ? trace_hardirqs_on+0xd/0x10
[31908.549885] i915_pci_remove+0x23/0x30 [i915]
[31908.549978] pci_device_remove+0x5c/0x100
[31908.550069] device_release_driver_internal+0x1db/0x2e0
[31908.550165] driver_detach+0x68/0xc0
[31908.550256] bus_remove_driver+0x8b/0x150
[31908.550346] driver_unregister+0x3e/0x60
[31908.550439] pci_unregister_driver+0x1d/0x110
[31908.550531] ? find_module_all+0x7a/0xa0
[31908.550791] i915_exit+0x1a/0x87 [i915]
[31908.550881] SyS_delete_module+0x264/0x2c0
[31908.550971] ? free_module+0x430/0x430
[31908.551064] ? trace_hardirqs_off_caller+0x16/0x110
[31908.551159] ? trace_hardirqs_on_caller+0x16/0x280
[31908.551256] ? trace_hardirqs_on_thunk+0x1a/0x1c
[31908.551350] entry_SYSCALL_64_fastpath+0x1c/0xb1
[31908.551440] RIP: 0033:0x7f1d67312ec7
[31908.551520] RSP: 002b:00007ffebe34e888 EFLAGS: 00000206 ORIG_RAX: 00000000000000b0
[31908.551650] RAX: ffffffffffffffda RBX: ffffffff811123f6 RCX: 00007f1d67312ec7
[31908.551743] RDX: 0000000000000000 RSI: 0000000000000800 RDI: 0000560d0af476b8
[31908.551837] RBP: ffff880233d87f98 R08: 0000000000000000 R09: 00007ffebe34e8b8
[31908.551930] R10: 00007f1d68adf8c0 R11: 0000000000000206 R12: 0000000000000000
[31908.552023] R13: 0000560d0af46440 R14: 0000000000000034 R15: 00007ffebe34d860
[31908.552121] ? trace_hardirqs_off_caller+0x16/0x110
[31908.552217] Object at ffff8801f7788000, in cache kmalloc-2048 size: 2048
[31908.552306] Allocated:
[31908.552377] PID = 3781
[31908.552456] save_stack_trace+0x16/0x20
[31908.552539] kasan_kmalloc+0xee/0x190
[31908.552627] __kmalloc+0xdb/0x1b0
[31908.552713] platform_device_alloc+0x27/0x90
[31908.552804] platform_device_register_full+0x36/0x220
[31908.553066] intel_lpe_audio_init+0x41e/0x570 [i915]
[31908.553320] intel_audio_init+0xd/0x40 [i915]
[31908.553552] i915_driver_load+0x13f5/0x1d70 [i915]
[31908.553788] i915_pci_probe+0x65/0xe0 [i915]
[31908.553881] pci_device_probe+0xda/0x140
[31908.553969] driver_probe_device+0x400/0x660
[31908.554058] __driver_attach+0x11c/0x120
[31908.554147] bus_for_each_dev+0xe6/0x150
[31908.554237] driver_attach+0x26/0x30
[31908.554325] bus_add_driver+0x26b/0x3b0
[31908.554412] driver_register+0xce/0x190
[31908.554502] __pci_register_driver+0xaf/0xc0
[31908.554589] 0xffffffffa0550063
[31908.554675] do_one_initcall+0x8b/0x1e0
[31908.554764] do_init_module+0x102/0x325
[31908.554852] load_module+0x3aad/0x45e0
[31908.554944] SyS_finit_module+0x169/0x1a0
[31908.555033] entry_SYSCALL_64_fastpath+0x1c/0xb1
[31908.555119] Freed:
[31908.555188] PID = 3781
[31908.555266] save_stack_trace+0x16/0x20
[31908.555349] kasan_slab_free+0xb0/0x180
[31908.555436] kfree+0xaa/0x170
[31908.555520] platform_device_release+0x76/0x80
[31908.555610] device_release+0x45/0xe0
[31908.555698] kobject_put+0x11f/0x260
[31908.555785] put_device+0x12/0x20
[31908.555871] platform_device_unregister+0x1b/0x20
[31908.556135] intel_lpe_audio_teardown+0x5c/0xb0 [i915]
[31908.556390] intel_audio_deinit+0x28/0x80 [i915]
[31908.556622] i915_driver_unload+0xe4/0x360 [i915]
[31908.556858] i915_pci_remove+0x23/0x30 [i915]
[31908.556948] pci_device_remove+0x5c/0x100
[31908.557037] device_release_driver_internal+0x1db/0x2e0
[31908.557129] driver_detach+0x68/0xc0
[31908.557217] bus_remove_driver+0x8b/0x150
[31908.557304] driver_unregister+0x3e/0x60
[31908.557394] pci_unregister_driver+0x1d/0x110
[31908.557653] i915_exit+0x1a/0x87 [i915]
[31908.557741] SyS_delete_module+0x264/0x2c0
[31908.557834] entry_SYSCALL_64_fastpath+0x1c/0xb1
[31908.557919] Memory state around the buggy address:
[31908.558005] ffff8801f7788200: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[31908.558127] ffff8801f7788280: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[31908.558255] >ffff8801f7788300: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[31908.558374] ^
[31908.558467] ffff8801f7788380: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
[31908.558595] ffff8801f7788400: fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb fb
v2: Just leak the memory (8 bytes) as freeing it ourselves is not safe,
and we need to coordinate a proper fix in platform_device itself.
Fixes: eef57324d926 ("drm/i915: setup bridge for HDMI LPE audio driver")
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=99952
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Cc: Jerome Anand <jerome.anand@intel.com>
Cc: Jani Nikula <jani.nikula@intel.com>
Cc: Takashi Iwai <tiwai@suse.de>
Link: http://patchwork.freedesktop.org/patch/msgid/20170412080251.30648-1-chris@chris-wilson.co.uk
Reviewed-by: Takashi Iwai <tiwai@suse.de>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
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Currently intel_dp_check_link_status() tries to retrain the link if
Clock recovery or Channel EQ for any of the lanes indicated by
intel_dp->lane_count is not set. However these values cached in intel_dp
structure can be stale if link training has failed for these values
during previous modeset. Or these values can get stale since we have
now re read the DPCD registers or it can be 0 in case of connected boot
case.
This patch validates these values against the max link rate and max lane
count values.
This is absolutely required incase the common_rates or max lane count
are now different due to link fallback.
v2:
* Include the FIXME commnet inside the function (Ville Syrjala)
* Remove the redundant parenthesis (Ville Syrjala)
v3 by Jani:
* rebase on the DP refactoring series
* rename intel_dp_link_params_is_valid to intel_dp_link_params_valid
* minor stylistic changes
v4:
* Compare the link rate against max link rate not the
common_rates since common_rates does not account for the
lowered fallback link rate value. (Ville Syrjala)
v5:
* Fixed a warning for unused variable (Manasi)
Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1491512412-30016-1-git-send-email-manasi.d.navare@intel.com
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igt_mmap_offset_exhaustion() selftest was using live requests to make an
object busy, but we did not hold a runtime pm wakeref for submitting the
requests. Acquire it to avoid triggering "RPM wakelock ref not held
during HW access" warnings.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170411234427.14841-3-chris@chris-wilson.co.uk
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
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If we have a mock engine and it has no more requests in flight, report
it as idle as there is no hardware to contradict us! Otherwise we
attempt to query the hw that doesn't exist and find that the hw hasn't
set its idle bit and we get upset.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170411234427.14841-2-chris@chris-wilson.co.uk
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
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Provide dummy function pointers for the mock device in case we do hit
mmio during testing.
v2: Use ASSIGN_READ/WRITE_MMIO_FUNCS macros
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/20170412092143.3822-1-chris@chris-wilson.co.uk
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When discussing a new WC mmap, we based the interface upon the
assumption that GTT was fully coherent. How naive! Commits 3b5724d702ef
("drm/i915: Wait for writes through the GTT to land before reading
back") and ed4596ea992d ("drm/i915/guc: WA to address the Ringbuffer
coherency issue") demonstrate that writes through the GTT are indeed
delayed and may be overtaken by direct WC access. To be safe, if
userspace is mixing WC mmaps with other potential GTT access (pwrite,
GTT mmaps) it should use set_domain(WC).
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=96563
Testcase: igt/gem_pwrite/small-gtt*
Testcase: igt/drv_selftest/coherency
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/20170412110111.26626-2-chris@chris-wilson.co.uk
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In the next patch, we will introduce a new cache domain for
differentiating between GTT access and direct WC access. This will
require us to include WC in our write_domain flushes. Rather than
duplicate a third function, combine the existing two into one and
flushing WC writes will then be automatically handled as well.
v2: Be smarter and clearer by passing in the write domains to flush (Joonas)
v3: One missed ~ in v2 conversion
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170412110111.26626-1-chris@chris-wilson.co.uk
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There is no need to acquire all locks here,
doing a commit after forcing a modeset on the affected crtc
is enough. Any other locks needed will be acquired as needed.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1491312297-18673-1-git-send-email-maarten.lankhorst@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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This reverts commit ea49c9acf2db7082f0406bb3a570cc6bad37082b.
mode_config.mutex was originally added to fix WARNs in connector
functions, but now that atomic nonblocking modeset support is
included, we will likely never hold any any lock at all.
The WARN mentioned in commit bbf35e9defb9a6d1 ("drm/i915:
Pass atomic state to intel_audio_codec_enable, v2."), so it's
safe to revert this now.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1491312168-18147-1-git-send-email-maarten.lankhorst@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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No properties are supported, so just use the helper and reject everything.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1491815239-10685-6-git-send-email-maarten.lankhorst@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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No properties are supported, so just use the helper and reject
everything.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1491815239-10685-5-git-send-email-maarten.lankhorst@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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MST doesn't support setting any properties, but it should still
use the atomic helper for setting properties.
Only path and tile properties are supported (read-only).
Those are immutable, and handled by drm core.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1491815239-10685-4-git-send-email-maarten.lankhorst@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Those properties are not hooked up on MST and were ignored. Best not expose them at all.
Without this the next patch fails to start on X.org, because the DP-MST properties could
not be read.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/751b85a0-81cd-09e2-9e60-6d4ddbf1c6ac@linux.intel.com
Testcase: kms_properties
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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intel_tv has properties that are handled in the atomic core, but
needs a modeset to update the properties inside the connector.
The detect(), get_mode() and mode_valid() probe callbacks also
depend on the connector state, which made this a good connector
to convert first. It helped find all the issues when converting
connectors to atomic.
Because of these requirements, connector atomic_check() was added
and connection_mutex is held during probing. The diffstat looks
more favorable now. :)
Changes since v1:
- Add intel_encoder->swap_state to allow updating connector state.
- Add intel_tv->format for detect_mode and mode_valid, updated on atomic commit.
Changes since v2:
- Fix typo in tv_choose_preferred modes function name.
- Assignment of tv properties is done in core, so intel_tv only needs
a atomic_check function. Thanks Ville!
Changes since v3:
- connection_mutex is now held in mode_valid() and get_modes(),
this removes the need for caching parts of the connector_state.
Changes since v4:
- Use the new atomic connector check function.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1491815239-10685-3-git-send-email-maarten.lankhorst@linux.intel.com
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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They have been unused since 2010, after the code for
intel_tv_save/restore was removed in the below commit:
commit 6443170f6d862a1cc89e61e4bb2410b714b875f4
Author: Eric Anholt <eric@anholt.net>
Date: Fri Apr 2 15:24:27 2010 -0700
drm/i915: Remove dead KMS encoder save/restore code.
This was brought over from UMS, and used for a while until we decided
that drm_helper_resume_force_mode was easier and more reliable, since
it didn't require duplicating all the code deleted here. We just
forgot to delete all that junk for a while.
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1491815239-10685-2-git-send-email-maarten.lankhorst@linux.intel.com
[mlankhorst: Add commit blurb based on danvet's feedback.]
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We indirectly hold the runtime-pm for the intel_lrc_irq_handler() by
virtue of dev_priv->gt.awake keeping a wakeref whilst the requests are
busy. As this is not obvious from the code, add a comment.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170411175850.2470-1-chris@chris-wilson.co.uk
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
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Maarten needs both the new connector->atomic_check hook and the
connection_mutex locking changes in the probe helpers to be able to
start merging the connector property conversion to atomic.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
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Similar to commit 8490ae207f1d ("drm/i915: Suppress busy status for
engines if wedged") we also want to report intel_engine_is_idle() as
true as well as the main intel_engines_are_idle(), as we now check that
the engines are idle when overwriting the HWS page. This is not true
whilst we are setting the device as wedged, at least according to our
bookkeeping, so we have to lie to ourselves!
[ 383.588601] [drm:i915_reset [i915]] *ERROR* Failed to reset chip: -110
[ 383.588685] ------------[ cut here ]------------
[ 383.588755] WARNING: CPU: 0 PID: 12 at drivers/gpu/drm/i915/intel_engine_cs.c:226 intel_engine_init_global_seqno+0x222/0x290 [i915]
[ 383.588757] WARN_ON(!intel_engine_is_idle(engine))
[ 383.588759] Modules linked in: ctr ccm snd_hda_codec_hdmi snd_hda_codec_conexant snd_hda_codec_generic snd_hda_intel snd_hda_codec snd_hda_core arc4 iwldvm mac80211 snd_pcm snd_hwdep snd_seq_midi snd_seq_midi_event rfcomm bnep snd_rawmidi intel_powerclamp coretemp dm_multipath iwlwifi crct10dif_pclmul snd_seq crc32_pclmul ghash_clmulni_intel btusb aesni_intel btrtl btbcm aes_x86_64 crypto_simd cryptd btintel snd_timer glue_helper bluetooth intel_ips snd_seq_device cfg80211 snd soundcore binfmt_misc mei_me mei dm_mirror dm_region_hash dm_log i915 intel_gtt i2c_algo_bit drm_kms_helper cfbfillrect syscopyarea cfbimgblt sysfillrect sysimgblt fb_sys_fops cfbcopyarea prime_numbers ahci libahci drm e1000e
[ 383.588851] CPU: 0 PID: 12 Comm: migration/0 Not tainted 4.11.0-rc5+ #207
[ 383.588853] Hardware name: LENOVO 514328U/514328U, BIOS 6QET44WW (1.14 ) 04/20/2010
[ 383.588855] Call Trace:
[ 383.588866] dump_stack+0x63/0x90
[ 383.588871] __warn+0xc7/0xf0
[ 383.588876] warn_slowpath_fmt+0x4a/0x50
[ 383.588883] ? set_next_entity+0x821/0x910
[ 383.588943] intel_engine_init_global_seqno+0x222/0x290 [i915]
[ 383.588998] __i915_gem_set_wedged_BKL+0xa4/0x190 [i915]
[ 383.589003] ? __switch_to+0x215/0x390
[ 383.589008] multi_cpu_stop+0xbb/0xe0
[ 383.589012] ? cpu_stop_queue_work+0x90/0x90
[ 383.589016] cpu_stopper_thread+0x82/0x110
[ 383.589021] smpboot_thread_fn+0x137/0x190
[ 383.589026] kthread+0xf7/0x130
[ 383.589030] ? sort_range+0x20/0x20
[ 383.589034] ? kthread_park+0x90/0x90
[ 383.589040] ret_from_fork+0x2c/0x40
Fixes: 2ca9faa551c4 ("drm/i915: Assert the engine is idle before overwiting the HWS")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170411190042.25662-1-chris@chris-wilson.co.uk
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Technically speaking, the context size is per engine class, not per
instance.
v2: Add MISSING_CASE (Tvrtko)
v3: Rebased
v4: Restore the interface back to hiding the class lookup (Chris)
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Signed-off-by: Oscar Mateo <oscar.mateo@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1491905472-16189-1-git-send-email-oscar.mateo@intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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In places, we assume that RCS exists. This has been true forever, but
let us catch this failure during bringup by adding an explicit check
that we do have an RCS engine.
v2: Make use of HAS_ENGINE (Tvrtko)
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/20170411165658.23828-1-chris@chris-wilson.co.uk
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Don't clobber intel_dp->sink_count with the raw value.
Suggested-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/37d3222115172922fcd5ab038238359935bd561f.1491485983.git.jani.nikula@intel.com
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This is what we have the readb and writeb variants for. Do some minor
return value and variable cleanup while at it.
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/fd8a8f110bcfdc73a8c9241e5f9d61f7dd7c9677.1491485983.git.jani.nikula@intel.com
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Localize link_rate_index to the if block, and rename to just index to
reduce indent.
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/d348d990c96705427b93c1cac8c3e4447d06eebf.1491485983.git.jani.nikula@intel.com
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The source might not support as many lanes as the sink, or the link
training might have failed at higher lane counts. Take these into
account.
Cc: Dhinakaran Pandiyan <dhinakaran.pandiyan@intel.com>
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/cf59530acafaf9258fb643d321ad251b44f34e29.1491485983.git.jani.nikula@intel.com
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These are the theoretical maximums common for source and sink. These are
the maximums we should start with. They may be degraded in case of link
training failures, and the dynamic link values are stored separately.
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/5088aca253c47dfa18251e1adb976aca1718f083.1491485983.git.jani.nikula@intel.com
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If we modify these on the fly depending on the link conditions, don't
pretend they are sink properties.
Some link vs. sink confusion still remains, but we'll take care of them
in follow-up patches.
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/3739b4fac502ebd1c6e075a62c1a195e4094eb16.1491485983.git.jani.nikula@intel.com
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In link training fallback, we're trying to find a rate that we know is
in a sorted array of common link rates. We don't need to limit the array
using the max rate. For test request, the DP CTS doesn't say we should
limit the rate based on earlier fallback. This lets us get rid of
intel_dp_link_rate_index() and use intel_dp_rate_index() instead.
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/33cab481a3228f31e938b5891a6285d892dcf272.1491485983.git.jani.nikula@intel.com
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Now that source rates are static and sink rates are updated whenever
DPCD is updated, we can do and cache the intersection of them whenever
sink rates are updated. This reduces code complexity, as we don't have
to keep calling the functions to intersect. We also get rid of several
common rates arrays on stack.
Limiting the common rates by a max link rate can be done by picking the
first N elements of the cached common rates.
v2: get rid of the local common_rates variable (Manasi)
v3: don't clobber cached eDP rates on short pulse (Ville)
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Manasi Navare <manasi.d.navare@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/e3b287e8cb6559b1f8fd4e80b78a8d22f1802eb7.1491485983.git.jani.nikula@intel.com
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Looking at DPCD DP_MAX_LINK_RATE may be completely bogus for eDP 1.4
which is allowed to use link rate select method and have 0 in max link
rate. With this change, it makes sense to store the max rate as the
actual rate rather than as a bw code.
Cc: Manasi Navare <manasi.d.navare@intel.com>
Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/3e8baadb406d59f414cab36fed9f0b35d207fde5.1491485983.git.jani.nikula@intel.com
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We want to refer to the index of the engine consistently throughout the
userspace ABI. We already have such an index through the execbuffer
engine specifier, that needs to be able to refer to each engine
specifically, so rename it the index to uabi_id to reflect its
generality beyond execbuf.
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/20170411124306.15448-1-chris@chris-wilson.co.uk
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There are some properties that logically belong to the engine class, and some
that belong to the engine instance. Make it explicit.
v2: Commit message (Tvrtko)
v3:
- Rebased
- Exec/uabi id should be per instance (Chris)
v4:
- Rebased
- Avoid re-ordering fields for smaller diff (Tvrtko)
- Bug on oob access to the class array (Michal)
v5: Bug on the right thing (Michal)
v6: Rebased
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Oscar Mateo <oscar.mateo@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1491834873-9345-5-git-send-email-oscar.mateo@intel.com
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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Not really needed, but makes the next change a little bit more compact.
v2:
- Use zero-based numbering for engine names: xcs0, xcs1.. xcsN (Tvrtko, Chris)
- Make sure the mock engine name is null-terminated (Tvrtko, Chris)
v3: Because I'm stupid (Chris)
v4: Verify engine name wasn't truncated (Michal)
v5:
- Kill the warning in mock engine (Chris)
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Oscar Mateo <oscar.mateo@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1491834873-9345-4-git-send-email-oscar.mateo@intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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If we needed to do something different for the init functions, we could
always look at the engine instance to make the distinction. But, in any
case, the two functions are virtually identical already (please notice
that BSD2_RING is only used from gen8 onwards).
With this, the init functions depends excusively on the engine class
(a fact that we will use soon).
v2: Commit message
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Signed-off-by: Oscar Mateo <oscar.mateo@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1491834873-9345-3-git-send-email-oscar.mateo@intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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In such a way that vcs and vcs2 are just two different instances (0 and 1)
of the same engine class (VIDEO_DECODE_CLASS).
v2: Align the instance types (Tvrtko)
v3: Don't use enums for bspec-defined stuff (Michal)
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniele Ceraolo Spurio <daniele.ceraolospurio@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Signed-off-by: Oscar Mateo <oscar.mateo@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1491834873-9345-2-git-send-email-oscar.mateo@intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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While we do hold the forcewake for legacy ringbuffer initialisation, we
don't guard our access with the uncore.lock spinlock. In theory, we only
initialise when no others should be accessing the same mmio cachelines,
but in practice be safe as this is an infrequently used path and not
worth risky micro-optimisations.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170411101340.31994-5-chris@chris-wilson.co.uk
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
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Since the sandybridge_pcode_read() may be called from
skl_pcode_request() inside an atomic context (with preempt disabled), we
should avoid hitting any sleeping paths. Currently is being called with
a 500ms timeout, irrespective of being inside an atomic context or not.
This is reduced down to 500us to play nice with the atomic context, and
that appears to be sufficient to keep BAT happy (we have a DRM_ERROR
should it timeout), i.e. we do not see any 500us pcode timeouts for
normal use. So leave it as a pure spin without having to introduce new
code paths to separate atomic/normal contexts.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170411101340.31994-4-chris@chris-wilson.co.uk
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
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We acquire the forcewake and use I915_READ_FW instead for the atomic
wait within intel_uncore_wait_for_register. However, this still leaves
us vulnerable to concurrent mmio access to the register, which can cause
system hangs on gen7. The protection is to acquire uncore.lock around
each register, so lets add it back.
v2: Wrap __intel_wait_for_register_fw() to re-use its atomic wait_for
loop and spare adding another for ourselves.
v3: Add might_sleep() annotation
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170411101340.31994-3-chris@chris-wilson.co.uk
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
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submit_request() is called from an atomic context, it's not allowed to
sleep. We have to be careful in our parameters to
intel_uncore_wait_for_register() to limit ourselves to the atomic wait
loop and not incur the wrath of our warnings.
Fixes: 6976e74b5fa1 ("drm/i915: Don't allow overuse of __intel_wait_for_register_fw()")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170410143807.22725-1-chris@chris-wilson.co.uk
Link: http://patchwork.freedesktop.org/patch/msgid/20170411101340.31994-2-chris@chris-wilson.co.uk
Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
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Allow the caller to use the fast_timeout_us to specify how long to wait
within the atomic section, rather than transparently switching to a
sleeping loop for larger values. This is required as some callsites may
need a long wait and are in an atomic section.
v2: Reinforce kerneldoc fast_timeout_us limit with a GEM_BUG_ON
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Michal Wajdeczko <michal.wajdeczko@intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170411112705.12656-1-chris@chris-wilson.co.uk
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
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drm-next
Noteworthy changes this time:
1) 4k support for newer chips (ganging up hwpipes and mixers)
2) using OPP bindings for gpu
3) more prep work towards per-process pagetables
* 'msm-next' of git://people.freedesktop.org/~robclark/linux: (47 commits)
msm/drm: gpu: Dynamically locate the clocks from the device tree
drm/msm: gpu: Use OPP tables if we can
drm/msm: Hard code the GPU "slow frequency"
drm/msm: Add MSM_PARAM_GMEM_BASE
drm/msm: Reference count address spaces
drm/msm: Make sure to detach the MMU during GPU cleanup
drm/msm/mdp5: Enable 3D mux in mdp5_ctl
drm/msm/mdp5: Reset CTL blend registers before configuring them
drm/msm/mdp5: Assign 'right' mixer to CRTC state
drm/msm/mdp5: Stage border out on base stage if CRTC has 2 LMs
drm/msm/mdp5: Stage right side hwpipes on Right-side Layer Mixer
drm/msm/mdp5: Prepare Layer Mixers for source split
drm/msm/mdp5: Configure 'right' hwpipe
drm/msm/mdp5: Assign a 'right hwpipe' to plane state
drm/msm/mdp5: Create mdp5_hwpipe_mode_set
drm/msm/mdp5: Add optional 'right' Layer Mixer in CRTC state
drm/msm/mdp5: Add a CAP for Source Split
drm/msm/mdp5: Remove mixer/intf pointers from mdp5_ctl
drm/msm/mdp5: Start using parameters from CRTC state
drm/msm/mdp5: Add more stuff to CRTC state
...
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git://anongit.freedesktop.org/git/drm-misc into drm-next
Last drm-misc-next pull req for 4.12
Core changes:
- fb_helper checkpatch cleanup and simplified _add_one_connector() (Thierry)
- drm_ioctl and drm_sysfs improved/gained documentation (Daniel)
- [ABI] Repurpose reserved field in drm_event_vblank for crtc_id (Ander)
- Plumb acquire ctx through legacy paths to avoid lock_all and legacy_backoff
(Daniel)
- Add connector_atomic_check to check conn constraints on modeset (Maarten)
- Add drm_of_find_panel_or_bridge to remove boilerplate in drivers (Rob)
Driver changes:
- meson moved to drm-misc (Neil)
- Added support for Amlogic GX SoCs in dw-hdmi (Neil)
- Rockchip unbind actually cleans up the things bind initializes (Jeffy)
- A couple misc fixes in virtio, dw-hdmi
NOTE: this also includes a backmerge of drm-next as well rc5 (we needed vmwgfx
as well as the new synopsys media formats)
* tag 'drm-misc-next-2017-04-07' of git://anongit.freedesktop.org/git/drm-misc: (77 commits)
Revert "drm: Don't allow interruptions when opening debugfs/crc"
drm: Only take cursor locks when the cursor plane exists
drm/vmwgfx: Fix fbdev emulation using legacy functions
drm/rockchip: Shutdown all crtcs when unbinding drm
drm/rockchip: Reorder drm bind/unbind sequence
drm/rockchip: analogix_dp: Disable clock when unbinding
drm/rockchip: vop: Unprepare clocks when unbinding
drm/rockchip: vop: Enable pm domain before vop_initial
drm/rockchip: cdn-dp: Don't unregister audio dev when unbinding
drm/rockchip: cdn-dp: Don't try to release firmware when not loaded
drm: bridge: analogix: Destroy connector & encoder when unbinding
drm: bridge: analogix: Disable clock when unbinding
drm: bridge: analogix: Unregister dp aux when unbinding
drm: bridge: analogix: Detach panel when unbinding analogix dp
drm: Don't allow interruptions when opening debugfs/crc
drm/virtio: don't leak bo on drm_gem_object_init failure
drm: bridge: dw-hdmi: fix input format/encoding from plat_data
drm: omap: use common OF graph helpers
drm: convert drivers to use drm_of_find_panel_or_bridge
drm: convert drivers to use of_graph_get_remote_node
...
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Linux 4.11-rc6
drm-misc needs 4.11-rc5, may as well fix conflicts with rc6.
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into drm-next
Just some bug fixes and vega10 updates for 4.12.
* 'drm-next-4.12' of git://people.freedesktop.org/~agd5f/linux:
drm/amdgpu: fix fence memory leak in wait_all_fence V2
drm/amdgpu: fix "fix 64bit division"
drm/amd/powerplay: add fan controller table v11 support.
drm/amd/powerplay: port newest process pptable code for vega10.
drm/amdgpu: set vm size and block size by individual gmc by default (v3)
drm/amdgpu: Avoid overflows/divide-by-zero in latency_watermark calculations.
drm/amdgpu: Make display watermark calculations more accurate
drm/radeon: fix typo in bandwidth calculation
drm/radeon: Refuse to migrate a prime BO to VRAM. (v2)
drm/radeon: Maintain prime import/export refcount for BOs
drm/amdgpu: Refuse to pin or change acceptable domains of prime BOs to VRAM. (v2)
drm/amdgpu: Fail fb creation from imported dma-bufs. (v2)
drm/radeon: Fail fb creation from imported dma-bufs.
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git://anongit.freedesktop.org/git/drm-intel into drm-next
Last 4.12 feature pile:
GVT updates:
- Add mdev attribute group for per-vgpu info
- Time slice based vGPU scheduling QoS support (Gao Ping)
- Initial KBL support for E3 server (Han Xu)
- other misc.
i915:
- lots and lots of small fixes and improvements all over
- refactor fw_domain code (Chris Wilson)
- improve guc code (Oscar Mateo)
- refactor cursor/sprite code, precompute more for less overhead in
the critical path (Ville)
- refactor guc/huc fw loading code a bit (Michal Wajdeczko)
* tag 'drm-intel-testing-2017-04-03' of git://anongit.freedesktop.org/git/drm-intel: (121 commits)
drm/i915: Update DRIVER_DATE to 20170403
drm/i915: Clear gt.active_requests before checking idle status
drm/i915/uc: Drop use of MISSING_CASE on trivial enums
drm/i915: make a few DDI functions static
drm/i915: Combine reset_all_global_seqno() loops into one
drm/i915: Remove redudant wait for each engine to idle from seqno wrap
drm/i915: Wait for all engines to be idle as part of i915_gem_wait_for_idle()
drm/i915: Move retire-requests into i915_gem_wait_for_idle()
drm/i915/uc: Move fw path check to fetch_uc_fw()
drm/i915/huc: Remove unused intel_huc_fini()
drm/i915/uc: Add intel_uc_fw_fini()
drm/i915/uc: Add intel_uc_fw_type_repr()
drm/i915/uc: Move intel_uc_fw_status_repr() to intel_uc.h
drivers: gpu: drm: i915L intel_lpe_audio: Fix kerneldoc comments
drm/i915: Suppress busy status for engines if wedged
drm/i915: Do request retirement before marking engines as wedged
drm/i915: Drop verbose and archaic "ring" from our internal engine names
drm/i915: Use a dummy timeline name for a signaled fence
drm/i915: Ironlake do_idle_maps w/a may be called w/o struct_mutex
drm/i915/guc: Take enable_guc_loading check out of GEM core code
...
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https://github.com/ckhu-mediatek/linux.git-tags into drm-next
This series is MT2701 DRM support.
* 'drm-next-4.12' of https://github.com/ckhu-mediatek/linux.git-tags:
drm/mediatek: add support for Mediatek SoC MT2701
drm/mediatek: update DSI sub driver flow for sending commands to panel
drm/mediatek: add non-continuous clock mode and EOT packet control
drm/mediatek: add dsi transfer function
drm/mediatek: add dsi interrupt control
drm/mediatek: cleaning up and refine
drm/mediatek: update display module connections
drm/mediatek: add BLS component
drm/mediatek: add shadow register support
drm/mediatek: add *driver_data for different hardware settings
drm/mediatek: add helpers for coverting from the generic components
dt-bindings: display: mediatek: update supported chips
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This function should not be called with long timeouts in atomic context.
Annotate it as might_sleep if timeout is longer than 10us.
v2: fix comment (Michal)
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Suggested-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170410121747.209200-1-michal.wajdeczko@intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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These params are passed by value, const qualifiers are ignored any way.
While around, unify timeout_ms type from long to int.
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Suggested-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170410093817.151280-1-michal.wajdeczko@intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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The void *data passed to debugfs callbacks is actually the
drm_i915_private pointer, so use it thusly and avoid the to_i915(dev)
indirection.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Link: http://patchwork.freedesktop.org/patch/msgid/20170407194220.821-1-chris@chris-wilson.co.uk
Reviewed-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
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