From: Cristian Marussi <cristian.marussi@arm.com>
To: Florian Fainelli <f.fainelli@gmail.com>
Cc: linux-kernel@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, sudeep.holla@arm.com,
james.quinlan@broadcom.com, Jonathan.Cameron@huawei.com,
etienne.carriere@linaro.org, vincent.guittot@linaro.org,
souvik.chakravarty@arm.com
Subject: Re: [PATCH 11/22] firmware: arm_scmi: Add SCMIv3.1 extended names protocols support
Date: Wed, 15 Jun 2022 17:29:41 +0100 [thread overview]
Message-ID: <YqoI5hYa97nZwUjl@e120937-lin> (raw)
In-Reply-To: <c787dfe6-9639-8797-d07a-048c5ec69ddf@gmail.com>
On Wed, Jun 15, 2022 at 09:10:03AM -0700, Florian Fainelli wrote:
> On 6/15/22 02:40, Cristian Marussi wrote:
> > On Wed, Jun 15, 2022 at 09:18:03AM +0100, Cristian Marussi wrote:
> > > On Wed, Jun 15, 2022 at 05:45:11AM +0200, Florian Fainelli wrote:
> > > >
> > > >
> > > > On 3/30/2022 5:05 PM, Cristian Marussi wrote:
> > > > > Using the common protocol helper implementation add support for all new
> > > > > SCMIv3.1 extended names commands related to all protocols with the
> > > > > exception of SENSOR_AXIS_GET_NAME.
> > > > >
> > > > > Signed-off-by: Cristian Marussi <cristian.marussi@arm.com>
> > > >
> > > > This causes the following splat on a platform where regulators fail to
> > > > initialize:
> > > >
> > >
> > > Hi Florian,
> > >
> > > thanks for the report.
> > >
> > > It seems a memory error while allocating so it was not meant to be
> > > solved by the fixes, anyway, I've never seen this splat in my testing
> > > and at first sight I cannot see anything wrong in the devm_k* calls
> > > inside scmi_voltage_protocol_init...is there any particular config in
> > > your setup ?
> > >
> > > Moreover, the WARNING line 5402 seems to match v5.19-rc1 and it has
> > > slightly changed with -rc-1, so I'll try rebasing on that at first and
> > > see if I can reproduce the issue locally.
> > >
> >
> > I just re-tested the series rebased on v519-rc1 plus fixes and I cannot
> > reproduce in my setup with a few (~9) good and bad voltage domains.
> >
> > How many voltage domains are advertised by the platform in your setup ?
>
> There are 11 voltage regulators on this platform, and of course, now that I
> am trying to reproduce the splat I reported I just cannot anymore... I will
> let you know if there is anything that needs to be done. Thanks for being
> responsive as usual!
... you're welcome...
I'm trying to figure out where an abnormal mem request could happen...
can you try adding this (for brutal debugging) when you try ?
(...just to rule out funny fw replies.... :D)
Thanks,
Cristian
--->8----
diff --git a/drivers/firmware/arm_scmi/voltage.c b/drivers/firmware/arm_scmi/voltage.c
index 895741b66f5a..fd841292df5c 100644
--- a/drivers/firmware/arm_scmi/voltage.c
+++ b/drivers/firmware/arm_scmi/voltage.c
@@ -108,6 +108,9 @@ static int scmi_init_voltage_levels(struct device *dev,
return -EINVAL;
}
+ dev_info(dev, "num_returned:%d num_remaining:%d\n",
+ num_returned, num_remaining);
+
v->levels_uv = devm_kcalloc(dev, num_levels, sizeof(u32), GFP_KERNEL);
if (!v->levels_uv)
return -ENOMEM;
> --
> Florian
next prev parent reply other threads:[~2022-06-15 16:29 UTC|newest]
Thread overview: 50+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-03-30 15:05 [PATCH 00/22] SCMIv3.1 Miscellaneous changes Cristian Marussi
2022-03-30 15:05 ` [PATCH 01/22] firmware: arm_scmi: Fix sorting of retrieved clock rates Cristian Marussi
2022-03-30 15:05 ` [PATCH 02/22] firmware: arm_scmi: Make protocols init fail on basic errors Cristian Marussi
2022-04-26 15:35 ` Sudeep Holla
2022-04-26 16:25 ` Cristian Marussi
2022-04-28 10:25 ` Sudeep Holla
2022-04-28 12:07 ` Cristian Marussi
2022-03-30 15:05 ` [PATCH 03/22] firmware: arm_scmi: Fix Base list protocols enumeration Cristian Marussi
2022-03-30 15:05 ` [PATCH 04/22] firmware: arm_scmi: Validate BASE_DISCOVER_LIST_PROTOCOLS reply Cristian Marussi
2022-04-28 10:07 ` Sudeep Holla
2022-04-28 13:45 ` Cristian Marussi
2022-04-28 13:55 ` Sudeep Holla
2022-04-28 14:03 ` Cristian Marussi
2022-03-30 15:05 ` [PATCH 05/22] firmware: arm_scmi: Dynamically allocate protocols array Cristian Marussi
2022-04-28 10:27 ` Sudeep Holla
2022-03-30 15:05 ` [PATCH 06/22] firmware: arm_scmi: Make name_get operations return a const Cristian Marussi
2022-03-30 15:05 ` [PATCH 07/22] firmware: arm_scmi: Check CLOCK_RATE_SET_COMPLETE async reply Cristian Marussi
2022-03-30 15:05 ` [PATCH 08/22] firmware: arm_scmi: Remove unneeded NULL termination of clk name Cristian Marussi
2022-03-30 15:05 ` [PATCH 09/22] firmware: arm_scmi: Split protocol specific definitions in a dedicated header Cristian Marussi
2022-03-30 15:05 ` [PATCH 10/22] firmware: arm_scmi: Introduce a common SCMIv3.1 .extended_name_get helper Cristian Marussi
2022-03-30 15:05 ` [PATCH 11/22] firmware: arm_scmi: Add SCMIv3.1 extended names protocols support Cristian Marussi
2022-06-15 3:45 ` Florian Fainelli
2022-06-15 8:17 ` Cristian Marussi
2022-06-15 9:40 ` Cristian Marussi
2022-06-15 16:10 ` Florian Fainelli
2022-06-15 16:29 ` Cristian Marussi [this message]
2022-06-15 17:19 ` Florian Fainelli
2022-06-15 17:32 ` Cristian Marussi
2022-06-15 22:58 ` Florian Fainelli
2022-03-30 15:05 ` [PATCH 12/22] firmware: arm_scmi: Parse clock_enable_latency conditionally Cristian Marussi
2022-03-30 15:05 ` [PATCH 13/22] firmware: arm_scmi: Add iterators for multi-part commands Cristian Marussi
2022-03-30 15:05 ` [PATCH 14/22] firmware: arm_scmi: Use common iterators in Sensor protocol Cristian Marussi
2022-03-30 15:05 ` [PATCH 15/22] firmware: arm_scmi: Add SCMIv3.1 SENSOR_AXIS_NAME_GET support Cristian Marussi
2022-06-02 14:25 ` Peter Hilber
2022-06-06 8:18 ` Cristian Marussi
2022-06-08 8:40 ` Peter Hilber
2022-06-08 8:49 ` Cristian Marussi
2022-03-30 15:05 ` [PATCH 16/22] firmware: arm_scmi: Use common iterators in Clock protocol Cristian Marussi
2022-03-30 15:05 ` [PATCH 17/22] firmware: arm_scmi: Use common iterators in Voltage protocol Cristian Marussi
2022-03-30 15:05 ` [PATCH 18/22] firmware: arm_scmi: Use common iterators in Perf protocol Cristian Marussi
2022-03-30 15:05 ` [PATCH 19/22] firmware: arm_scmi: Add SCMIv3.1 Clock notifications Cristian Marussi
2022-03-30 15:05 ` [PATCH 20/22] firmware: arm_scmi: Add SCMIv3.1 VOLTAGE_LEVEL_SET_COMPLETE Cristian Marussi
2022-03-30 15:05 ` [PATCH 21/22] firmware: arm_scmi: Add SCMI v3.1 Perf power-cost in microwatts Cristian Marussi
2022-03-30 16:46 ` Lukasz Luba
2022-03-30 15:05 ` [PATCH 22/22] firmware: arm_scmi: Add SCMIv3.1 PERFORMANCE_LIMITS_SET checks Cristian Marussi
2022-04-28 13:13 ` Sudeep Holla
2022-04-28 13:49 ` Cristian Marussi
2022-04-28 13:52 ` Sudeep Holla
2022-04-28 13:46 ` [PATCH 00/22] SCMIv3.1 Miscellaneous changes Sudeep Holla
2022-05-03 8:03 ` Sudeep Holla
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