From: "Noralf Trønnes" <noralf@tronnes.org>
To: Maxime Ripard <maxime@cerno.tech>
Cc: "Ben Skeggs" <bskeggs@redhat.com>,
"David Airlie" <airlied@linux.ie>, "Chen-Yu Tsai" <wens@csie.org>,
"Thomas Zimmermann" <tzimmermann@suse.de>,
"Jani Nikula" <jani.nikula@linux.intel.com>,
"Lyude Paul" <lyude@redhat.com>,
"Philipp Zabel" <p.zabel@pengutronix.de>,
"Maarten Lankhorst" <maarten.lankhorst@linux.intel.com>,
"Rodrigo Vivi" <rodrigo.vivi@intel.com>,
"Tvrtko Ursulin" <tvrtko.ursulin@linux.intel.com>,
"Jernej Skrabec" <jernej.skrabec@gmail.com>,
"Samuel Holland" <samuel@sholland.org>,
"Karol Herbst" <kherbst@redhat.com>,
"Emma Anholt" <emma@anholt.net>,
"Daniel Vetter" <daniel@ffwll.ch>,
"Joonas Lahtinen" <joonas.lahtinen@linux.intel.com>,
"Dom Cobley" <dom@raspberrypi.com>,
"Hans de Goede" <hdegoede@redhat.com>,
linux-arm-kernel@lists.infradead.org,
"Phil Elwell" <phil@raspberrypi.com>,
intel-gfx@lists.freedesktop.org,
"Dave Stevenson" <dave.stevenson@raspberrypi.com>,
dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org,
nouveau@lists.freedesktop.org, linux-sunxi@lists.linux.dev,
"Mateusz Kwiatkowski" <kfyatek+publicgit@gmail.com>,
"Geert Uytterhoeven" <geert@linux-m68k.org>,
"Noralf Trønnes" <noralf@tronnes.org>
Subject: Re: [PATCH v2 00/41] drm: Analog TV Improvements
Date: Mon, 5 Sep 2022 17:17:18 +0200 [thread overview]
Message-ID: <74c10e51-4034-a284-1a26-b7ba7fe45fbe@tronnes.org> (raw)
In-Reply-To: <20220905145729.ln675jko3aw6sgzs@houat>
Den 05.09.2022 16.57, skrev Maxime Ripard:
> On Fri, Sep 02, 2022 at 01:28:16PM +0200, Noralf Trønnes wrote:
>>
>>
>> Den 01.09.2022 21.35, skrev Noralf Trønnes:
>>>
>>>
>>> I have finally found a workaround for my kernel hangs.
>>>
>>> Dom had a look at my kernel and found that the VideoCore was fine, and
>>> he said this:
>>>
>>>> That suggests cause of lockup was on arm side rather than VC side.
>>>>
>>>> But it's hard to diagnose further. Once you've had a peripheral not
>>>> respond, the AXI bus locks up and no further operations are possible.
>>>> Usual causes of this are required clocks being stopped or domains
>>>> disabled and then trying to access the hardware.
>>>>
>>>
>>> So when I got this on my 64-bit build:
>>>
>>> [ 166.702171] SError Interrupt on CPU1, code 0x00000000bf000002 -- SError
>>> [ 166.702187] CPU: 1 PID: 8 Comm: kworker/u8:0 Tainted: G W
>>> 5.19.0-rc6-00096-gba7973977976-dirty #1
>>> [ 166.702200] Hardware name: Raspberry Pi 4 Model B Rev 1.1 (DT)
>>> [ 166.702206] Workqueue: events_freezable_power_ thermal_zone_device_check
>>> [ 166.702231] pstate: 200000c5 (nzCv daIF -PAN -UAO -TCO -DIT -SSBS
>>> BTYPE=--)
>>> [ 166.702242] pc : regmap_mmio_read32le+0x10/0x28
>>> [ 166.702261] lr : regmap_mmio_read+0x44/0x70
>>> ...
>>> [ 166.702606] bcm2711_get_temp+0x58/0xb0 [bcm2711_thermal]
>>>
>>> I wondered if that reg read was stalled due to a clock being stopped.
>>>
>>> Lo and behold, disabling runtime pm and keeping the vec clock running
>>> all the time fixed it[1].
>>>
>>> I don't know what the problem is, but at least I can now test this patchset.
>>>
>>> [1] https://gist.github.com/notro/23b984e7fa05cfbda2db50a421cac065
>>>
>>
>> It turns out I didn't have to disable runtime pm:
>> https://gist.github.com/notro/0adcfcb12460b54e54458afe11dc8ea2
>
> If the bcm2711_thermal IP needs that clock to be enabled, it should grab
> a reference itself, but it looks like even the device tree binding
> doesn't ask for one.
>
The first thing I tried was to unload the bcm2711_thermal module before
running modeset and it still hung, so I don't think that's the problem.
Noralf.
next prev parent reply other threads:[~2022-09-05 15:17 UTC|newest]
Thread overview: 131+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-08-29 13:11 [PATCH v2 00/41] drm: Analog TV Improvements Maxime Ripard
2022-08-29 13:11 ` [PATCH v2 01/41] drm/tests: Order Kunit tests in Makefile Maxime Ripard
2022-08-29 18:46 ` Noralf Trønnes
2022-08-29 19:02 ` Konstantin Ryabitsev
2022-08-30 8:30 ` Maxime Ripard
2022-08-30 12:22 ` Konstantin Ryabitsev
2022-08-31 7:30 ` Maxime Ripard
2022-08-31 12:19 ` Konstantin Ryabitsev
2022-08-29 13:11 ` [PATCH v2 02/41] drm/tests: Add Kunit Helpers Maxime Ripard
2022-08-29 13:11 ` [PATCH v2 03/41] drm/atomic-helper: Rename drm_atomic_helper_connector_tv_reset to avoid ambiguity Maxime Ripard
2022-08-29 13:11 ` [PATCH v2 04/41] drm/connector: Rename subconnector state variable Maxime Ripard
2022-08-29 13:11 ` [PATCH v2 05/41] drm/atomic: Add TV subconnector property to get/set_property Maxime Ripard
2022-08-29 13:11 ` [PATCH v2 06/41] drm/connector: Rename legacy TV property Maxime Ripard
2022-08-30 19:27 ` Noralf Trønnes
2022-08-29 13:11 ` [PATCH v2 07/41] drm/connector: Only register TV mode property if present Maxime Ripard
2022-08-29 13:11 ` [PATCH v2 08/41] drm/connector: Rename drm_mode_create_tv_properties Maxime Ripard
2022-08-29 13:11 ` [PATCH v2 09/41] drm/connector: Add TV standard property Maxime Ripard
2022-09-01 22:00 ` Mateusz Kwiatkowski
2022-09-02 7:35 ` Geert Uytterhoeven
2022-09-07 12:11 ` Maxime Ripard
2022-09-07 12:10 ` Maxime Ripard
2022-09-07 19:52 ` Mateusz Kwiatkowski
2022-09-09 9:46 ` Maxime Ripard
2022-09-11 4:32 ` Mateusz Kwiatkowski
2022-09-05 10:18 ` Noralf Trønnes
2022-08-29 13:11 ` [PATCH v2 10/41] drm/modes: Add a function to generate analog display modes Maxime Ripard
2022-08-30 13:01 ` Maíra Canal
2022-09-08 11:10 ` Maxime Ripard
2022-08-31 1:44 ` Mateusz Kwiatkowski
2022-08-31 8:14 ` Geert Uytterhoeven
2022-09-05 13:32 ` Maxime Ripard
2022-09-05 16:32 ` Mateusz Kwiatkowski
2022-09-07 14:38 ` Maxime Ripard
2022-09-05 13:37 ` Maxime Ripard
2022-09-05 16:44 ` Mateusz Kwiatkowski
2022-09-07 14:34 ` Maxime Ripard
2022-09-07 21:31 ` Mateusz Kwiatkowski
2022-09-09 13:54 ` Maxime Ripard
2022-09-11 4:48 ` Mateusz Kwiatkowski
2022-09-11 4:51 ` Mateusz Kwiatkowski
2022-09-21 15:05 ` Maxime Ripard
2022-09-09 14:00 ` Maxime Ripard
2022-09-11 4:30 ` kFYatek
2022-09-21 14:26 ` Maxime Ripard
2022-09-01 19:09 ` Noralf Trønnes
2022-08-29 13:11 ` [PATCH v2 11/41] drm/modes: Only consider bpp and refresh before options Maxime Ripard
2022-08-29 13:11 ` [PATCH v2 12/41] drm/modes: parse_cmdline: Add support for named modes containing dashes Maxime Ripard
2022-08-29 13:11 ` [PATCH v2 13/41] drm/client: Add some tests for drm_connector_pick_cmdline_mode() Maxime Ripard
2022-08-29 13:11 ` [PATCH v2 14/41] drm/modes: Move named modes parsing to a separate function Maxime Ripard
2022-08-30 10:06 ` Geert Uytterhoeven
2022-08-30 10:43 ` Jani Nikula
2022-08-30 12:03 ` Maxime Ripard
2022-08-30 13:36 ` Jani Nikula
2022-09-07 8:39 ` Maxime Ripard
2022-08-29 13:11 ` [PATCH v2 15/41] drm/modes: Switch to named mode descriptors Maxime Ripard
2022-08-29 13:11 ` [PATCH v2 16/41] drm/modes: Fill drm_cmdline mode from named modes Maxime Ripard
2022-08-29 13:11 ` [PATCH v2 17/41] drm/connector: Add pixel clock to cmdline mode Maxime Ripard
2022-08-29 13:11 ` [PATCH v2 18/41] drm/connector: Add a function to lookup a TV mode by its name Maxime Ripard
2022-08-31 19:14 ` Noralf Trønnes
2022-08-29 13:11 ` [PATCH v2 19/41] drm/modes: Introduce the tv_mode property as a command-line option Maxime Ripard
2022-08-30 12:34 ` Maíra Canal
2022-08-30 12:44 ` Maíra Canal
2022-09-01 22:46 ` Mateusz Kwiatkowski
2022-09-05 14:28 ` Maxime Ripard
2022-08-29 13:11 ` [PATCH v2 20/41] drm/modes: Properly generate a drm_display_mode from a named mode Maxime Ripard
2022-09-01 22:52 ` Mateusz Kwiatkowski
2022-08-29 13:11 ` [PATCH v2 21/41] drm/modes: Introduce more named modes Maxime Ripard
2022-08-29 13:11 ` [PATCH v2 22/41] drm/atomic-helper: Add a TV properties reset helper Maxime Ripard
2022-08-30 18:40 ` Noralf Trønnes
2022-08-29 13:11 ` [PATCH v2 23/41] drm/atomic-helper: Add an analog TV atomic_check implementation Maxime Ripard
2022-08-30 18:49 ` Noralf Trønnes
2022-08-29 13:11 ` [PATCH v2 24/41] drm/vc4: vec: Remove empty mode_fixup Maxime Ripard
2022-08-30 15:23 ` Noralf Trønnes
2022-09-07 8:34 ` (subset) " Maxime Ripard
2022-08-29 13:11 ` [PATCH v2 25/41] drm/vc4: vec: Convert to atomic helpers Maxime Ripard
2022-08-30 15:24 ` Noralf Trønnes
2022-09-07 8:35 ` (subset) " Maxime Ripard
2022-08-29 13:11 ` [PATCH v2 26/41] drm/vc4: vec: Refactor VEC TV mode setting Maxime Ripard
2022-08-30 15:29 ` Noralf Trønnes
2022-09-07 8:35 ` (subset) " Maxime Ripard
2022-08-29 13:11 ` [PATCH v2 27/41] drm/vc4: vec: Remove redundant atomic_mode_set Maxime Ripard
2022-08-30 15:45 ` Noralf Trønnes
2022-09-07 8:35 ` (subset) " Maxime Ripard
2022-08-29 13:11 ` [PATCH v2 28/41] drm/vc4: vec: Fix timings for VEC modes Maxime Ripard
2022-08-30 18:20 ` Noralf Trønnes
2022-09-07 8:35 ` (subset) " Maxime Ripard
2022-08-29 13:11 ` [PATCH v2 29/41] drm/vc4: vec: Switch for common modes Maxime Ripard
2022-08-30 18:36 ` Noralf Trønnes
2022-08-29 13:11 ` [PATCH v2 30/41] drm/vc4: vec: Fix definition of PAL-M mode Maxime Ripard
2022-08-29 13:11 ` [PATCH v2 31/41] drm/vc4: vec: Use TV Reset implementation Maxime Ripard
2022-08-30 18:51 ` Noralf Trønnes
2022-08-29 13:11 ` [PATCH v2 32/41] drm/vc4: vec: Convert to the new TV mode property Maxime Ripard
2022-08-30 19:01 ` Noralf Trønnes
2022-09-08 11:23 ` Maxime Ripard
2022-09-08 11:31 ` Mateusz Kwiatkowski
2022-09-08 12:16 ` Maxime Ripard
2022-09-08 11:34 ` Noralf Trønnes
2022-08-31 2:23 ` Mateusz Kwiatkowski
2022-09-08 13:18 ` Maxime Ripard
2022-08-29 13:11 ` [PATCH v2 33/41] drm/vc4: vec: Add support for more analog TV standards Maxime Ripard
2022-08-29 13:11 ` [PATCH v2 34/41] drm/sun4i: tv: Remove unused mode_valid Maxime Ripard
2022-09-07 8:35 ` (subset) " Maxime Ripard
2022-08-29 13:11 ` [PATCH v2 35/41] drm/sun4i: tv: Convert to atomic hooks Maxime Ripard
2022-09-06 20:02 ` Jernej Škrabec
2022-09-07 8:35 ` (subset) " Maxime Ripard
2022-08-29 13:11 ` [PATCH v2 36/41] drm/sun4i: tv: Merge mode_set into atomic_enable Maxime Ripard
2022-09-06 20:04 ` Jernej Škrabec
2022-09-07 7:41 ` Maxime Ripard
2022-09-07 15:09 ` Jernej Škrabec
2022-09-08 14:02 ` (subset) " Maxime Ripard
2022-08-29 13:11 ` [PATCH v2 37/41] drm/sun4i: tv: Remove useless function Maxime Ripard
2022-09-06 20:06 ` Jernej Škrabec
2022-09-07 8:35 ` (subset) " Maxime Ripard
2022-08-29 13:11 ` [PATCH v2 38/41] drm/sun4i: tv: Remove useless destroy function Maxime Ripard
2022-09-07 8:35 ` (subset) " Maxime Ripard
2022-08-29 13:11 ` [PATCH v2 39/41] drm/sun4i: tv: Rename error label Maxime Ripard
2022-09-07 8:35 ` (subset) " Maxime Ripard
2022-08-29 13:11 ` [PATCH v2 40/41] drm/sun4i: tv: Add missing reset assertion Maxime Ripard
2022-09-07 8:35 ` (subset) " Maxime Ripard
2022-08-29 13:11 ` [PATCH v2 41/41] drm/sun4i: tv: Convert to the new TV mode property Maxime Ripard
2022-09-01 19:35 ` [PATCH v2 00/41] drm: Analog TV Improvements Noralf Trønnes
2022-09-02 11:28 ` Noralf Trønnes
2022-09-05 14:57 ` Maxime Ripard
2022-09-05 15:17 ` Noralf Trønnes [this message]
2022-09-07 9:58 ` Maxime Ripard
2022-09-07 10:56 ` Noralf Trønnes
2022-09-07 10:36 ` Stefan Wahren
2022-09-07 16:44 ` Noralf Trønnes
2022-09-10 15:34 ` Noralf Trønnes
2022-09-21 14:03 ` Maxime Ripard
2022-09-24 15:33 ` Noralf Trønnes
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