From: Scott Cheloha <cheloha@linux.ibm.com>
To: Guenter Roeck <linux@roeck-us.net>, MichaelEllerman <mpe@ellerman.id.au>
Cc: nathanl@linux.ibm.com, wvoigt@us.ibm.com,
linux-watchdog@vger.kernel.org, aik@ozlabs.ru,
vaishnavi@linux.ibm.com, npiggin@gmail.com, tzungbi@kernel.org,
brking@linux.ibm.com, linuxppc-dev@lists.ozlabs.org
Subject: Re: [PATCH v3 4/4] watchdog/pseries-wdt: initial support for H_WATCHDOG-based watchdog timers
Date: Mon, 25 Jul 2022 11:11:41 -0500 [thread overview]
Message-ID: <Yt7AvQjmYzUTYuVy@rascal-austin-ibm-com> (raw)
In-Reply-To: <28eb0fd6-4c4e-17d5-0f89-73eb68b051fa@roeck-us.net>
On Wed, Jul 13, 2022 at 01:50:14PM -0700, Guenter Roeck wrote:
> On 7/13/22 13:23, Scott Cheloha wrote:
> > PAPR v2.12 defines a new hypercall, H_WATCHDOG. The hypercall permits
> > guest control of one or more virtual watchdog timers. The timers have
> > millisecond granularity. The guest is terminated when a timer
> > expires.
> >
> > This patch adds a watchdog driver for these timers, "pseries-wdt".
> >
> > pseries_wdt_probe() currently assumes the existence of only one
> > platform device and always assigns it watchdogNumber 1. If we ever
> > expose more than one timer to userspace we will need to devise a way
> > to assign a distinct watchdogNumber to each platform device at device
> > registration time.
> >
> > Signed-off-by: Scott Cheloha <cheloha@linux.ibm.com>
>
> Acked-by: Guenter Roeck <linux@roeck-us.net>
Guenter, Michael,
Which tree is taking this series?
watchdog-next or PPC development?
-Scott
next prev parent reply other threads:[~2022-07-25 16:12 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-13 20:23 [PATCH v3 0/4] pseries-wdt: initial support for H_WATCHDOG-based watchdog timers Scott Cheloha
2022-07-13 20:23 ` [PATCH v3 1/4] powerpc/pseries: hvcall.h: add H_WATCHDOG opcode, H_NOOP return code Scott Cheloha
2022-07-13 20:23 ` [PATCH v3 2/4] powerpc/pseries: add FW_FEATURE_WATCHDOG flag Scott Cheloha
2022-07-13 20:23 ` [PATCH v3 3/4] powerpc/pseries: register pseries-wdt device with platform bus Scott Cheloha
2022-07-13 20:23 ` [PATCH v3 4/4] watchdog/pseries-wdt: initial support for H_WATCHDOG-based watchdog timers Scott Cheloha
2022-07-13 20:50 ` Guenter Roeck
2022-07-25 16:11 ` Scott Cheloha [this message]
2022-07-25 21:30 ` Guenter Roeck
2022-07-26 7:14 ` Michael Ellerman
2022-07-29 13:01 ` [PATCH v3 0/4] pseries-wdt: " Michael Ellerman
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