From: Greg Kurz <groug@kaod•org>
To: Michael Ellerman <mpe@ellerman•id.au>
Cc: "Madhavan Srinivasan" <maddy@linux•vnet.ibm.com>,
"Alexey Kardashevskiy" <aik@ozlabs•ru>,
"Mahesh Salgaonkar" <mahesh@linux•vnet.ibm.com>,
"Masahiro Yamada" <yamada.masahiro@socionext•com>,
"Oliver O'Halloran" <oohall@gmail•com>,
"Mauro Carvalho Chehab" <mchehab+samsung@kernel•org>,
"Ira Weiny" <ira.weiny@intel•com>,
"Thomas Gleixner" <tglx@linutronix•de>,
"Rob Herring" <robh@kernel•org>,
"Dave Jiang" <dave.jiang@intel•com>,
linux-nvdimm <linux-nvdimm@lists•01.org>,
"Aneesh Kumar K . V" <aneesh.kumar@linux•ibm.com>,
"Krzysztof Kozlowski" <krzk@kernel•org>,
"Anju T Sudhakar" <anju@linux•vnet.ibm.com>,
"Alastair D'Silva" <alastair@d-silva•org>,
"Andrew Donnellan" <ajd@linux•ibm.com>,
"Arnd Bergmann" <arnd@arndb•de>,
"Nicholas Piggin" <npiggin@gmail•com>,
"Cédric Le Goater" <clg@kaod•org>,
"Dan Williams" <dan.j.williams@intel•com>,
"Hari Bathini" <hbathini@linux•ibm.com>,
"Linux MM" <linux-mm@kvack•org>,
"Greg Kroah-Hartman" <gregkh@linuxfoundation•org>,
"Linux Kernel Mailing List" <linux-kernel@vger•kernel.org>,
"Vishal Verma" <vishal.l.verma@intel•com>,
"Frederic Barrat" <fbarrat@linux•ibm.com>,
"Paul Mackerras" <paulus@samba•org>,
"Andrew Morton" <akpm@linux-foundation•org>,
linuxppc-dev <linuxppc-dev@lists•ozlabs.org>,
"David S. Miller" <davem@davemloft•net>
Subject: Re: [PATCH v4 00/25] Add support for OpenCAPI Persistent Memory devices
Date: Thu, 2 Apr 2020 13:10:12 +0200 [thread overview]
Message-ID: <20200402131012.579c7bf7@bahia.lan> (raw)
In-Reply-To: <87bloatd6e.fsf@mpe.ellerman.id.au>
On Thu, 02 Apr 2020 21:06:01 +1100
Michael Ellerman <mpe@ellerman•id.au> wrote:
> "Oliver O'Halloran" <oohall@gmail•com> writes:
> > On Thu, Apr 2, 2020 at 2:42 PM Michael Ellerman <mpe@ellerman•id.au> wrote:
> >> "Alastair D'Silva" <alastair@d-silva•org> writes:
> >> >> -----Original Message-----
> >> >> From: Dan Williams <dan.j.williams@intel•com>
> >> >>
> >> >> On Sun, Mar 29, 2020 at 10:23 PM Alastair D'Silva <alastair@d-silva•org>
> >> >> wrote:
> >> >> >
> >> >> > *snip*
> >> >> Are OPAL calls similar to ACPI DSMs? I.e. methods for the OS to invoke
> >> >> platform firmware services? What's Skiboot?
> >> >
> >> > Yes, OPAL is the interface to firmware for POWER. Skiboot is the open-source (and only) implementation of OPAL.
> >>
> >> https://github.com/open-power/skiboot
> >>
> >> In particular the tokens for calls are defined here:
> >>
> >> https://github.com/open-power/skiboot/blob/master/include/opal-api.h#L220
> >>
> >> And you can grep for the token to find the implementation:
> >>
> >> https://github.com/open-power/skiboot/blob/master/hw/npu2-opencapi.c#L2328
> >
> > I'm not sure I'd encourage anyone to read npu2-opencapi.c. I find it
> > hard enough to follow even with access to the workbooks.
>
> Compared to certain firmwares that run on certain other platforms it's
> actually pretty readable code ;)
>
Forth rocks ! ;-)
> > There's an OPAL call API reference here:
> > http://open-power.github.io/skiboot/doc/opal-api/index.html
>
> Even better.
>
> cheers
prev parent reply other threads:[~2020-04-02 13:42 UTC|newest]
Thread overview: 60+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-03-27 7:11 [PATCH v4 00/25] Add support for OpenCAPI Persistent Memory devices Alastair D'Silva
2020-03-27 7:11 ` [PATCH v4 01/25] powerpc/powernv: Add OPAL calls for LPC memory alloc/release Alastair D'Silva
2020-04-01 8:48 ` Dan Williams
2020-04-01 22:51 ` Alastair D'Silva
2020-03-27 7:11 ` [PATCH v4 02/25] mm/memory_hotplug: Allow check_hotplug_memory_addressable to be called from drivers Alastair D'Silva
2020-04-01 8:48 ` Dan Williams
2020-04-02 4:33 ` Alastair D'Silva
2020-03-27 7:11 ` [PATCH v4 03/25] powerpc/powernv: Map & release OpenCAPI LPC memory Alastair D'Silva
2020-04-01 8:48 ` Dan Williams
2020-04-02 4:36 ` Alastair D'Silva
2020-04-02 10:41 ` Benjamin Herrenschmidt
2020-04-03 4:27 ` Michael Ellerman
2020-03-27 7:11 ` [PATCH v4 04/25] ocxl: Remove unnecessary externs Alastair D'Silva
2020-04-01 8:48 ` Dan Williams
2020-03-27 7:11 ` [PATCH v4 05/25] ocxl: Address kernel doc errors & warnings Alastair D'Silva
2020-04-01 8:49 ` Dan Williams
2020-03-27 7:11 ` [PATCH v4 06/25] ocxl: Tally up the LPC memory on a link & allow it to be mapped Alastair D'Silva
2020-04-01 8:48 ` Dan Williams
2020-04-02 6:21 ` Andrew Donnellan
2020-03-27 7:11 ` [PATCH v4 07/25] ocxl: Add functions to map/unmap LPC memory Alastair D'Silva
2020-04-01 8:49 ` Dan Williams
2020-04-03 3:50 ` Alastair D'Silva
2020-03-27 7:11 ` [PATCH v4 08/25] ocxl: Emit a log message showing how much LPC memory was detected Alastair D'Silva
2020-04-01 8:49 ` Dan Williams
2020-04-02 1:29 ` Joe Perches
2020-04-03 3:52 ` Alastair D'Silva
2020-03-27 7:11 ` [PATCH v4 09/25] ocxl: Save the device serial number in ocxl_fn Alastair D'Silva
2020-03-27 7:11 ` [PATCH v4 10/25] nvdimm: Add driver for OpenCAPI Persistent Memory Alastair D'Silva
2020-03-29 2:56 ` Matthew Wilcox
2020-03-29 2:59 ` Matthew Wilcox
2020-04-01 8:49 ` Dan Williams
2020-04-01 19:35 ` Dan Williams
2020-03-27 7:11 ` [PATCH v4 11/25] powerpc: Enable the OpenCAPI Persistent Memory driver for powernv_defconfig Alastair D'Silva
2020-04-01 20:26 ` Dan Williams
2020-03-27 7:11 ` [PATCH v4 12/25] nvdimm/ocxl: Add register addresses & status values to the header Alastair D'Silva
2020-04-01 20:27 ` Dan Williams
2020-03-27 7:11 ` [PATCH v4 13/25] nvdimm/ocxl: Read the capability registers & wait for device ready Alastair D'Silva
2020-04-02 0:20 ` Dan Williams
2020-03-27 7:11 ` [PATCH v4 14/25] nvdimm/ocxl: Add support for Admin commands Alastair D'Silva
2020-04-02 6:41 ` Dan Williams
2020-03-27 7:11 ` [PATCH v4 15/25] nvdimm/ocxl: Register a character device for userspace to interact with Alastair D'Silva
2020-04-02 0:27 ` Dan Williams
2020-03-27 7:11 ` [PATCH v4 16/25] nvdimm/ocxl: Implement the Read Error Log command Alastair D'Silva
2020-04-03 0:54 ` Dan Williams
2020-03-27 7:11 ` [PATCH v4 17/25] nvdimm/ocxl: Add controller dump IOCTLs Alastair D'Silva
2020-03-27 7:11 ` [PATCH v4 18/25] nvdimm/ocxl: Add an IOCTL to report controller statistics Alastair D'Silva
2020-03-27 7:11 ` [PATCH v4 19/25] nvdimm/ocxl: Forward events to userspace Alastair D'Silva
2020-04-02 2:08 ` Dan Williams
2020-03-27 7:11 ` [PATCH v4 20/25] nvdimm/ocxl: Add an IOCTL to request controller health & perf data Alastair D'Silva
2020-03-27 7:11 ` [PATCH v4 21/25] nvdimm/ocxl: Implement the heartbeat command Alastair D'Silva
2020-03-27 7:11 ` [PATCH v4 22/25] nvdimm/ocxl: Add debug IOCTLs Alastair D'Silva
2020-03-27 7:12 ` [PATCH v4 23/25] nvdimm/ocxl: Expose SMART data via ndctl Alastair D'Silva
2020-03-27 7:12 ` [PATCH v4 24/25] nvdimm/ocxl: Expose the serial number & firmware version in sysfs Alastair D'Silva
2020-03-27 7:12 ` [PATCH v4 25/25] MAINTAINERS: Add myself & nvdimm/ocxl to ocxl Alastair D'Silva
2020-04-01 8:47 ` [PATCH v4 00/25] Add support for OpenCAPI Persistent Memory devices Dan Williams
2020-04-01 22:44 ` Alastair D'Silva
2020-04-02 3:42 ` Michael Ellerman
2020-04-02 3:50 ` Oliver O'Halloran
2020-04-02 10:06 ` Michael Ellerman
2020-04-02 11:10 ` Greg Kurz [this message]
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