wiki: Porting wiki: Porting 2018-02 PeriPeriCon

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

2 files changed, 228 insertions, 1 deletions

diff --git a/wiki/2018-02-periperi.wiki b/wiki/2018-02-periperi.wiki
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+h1. PeriPeri-2018-02
+
+http://muistio.tieke.fi/p/periperi-20180202
+
+| Dates | 2018/02/01 - 2018/02/02 |
+| Place | see 'Activities' below |
+|/12. Member | Geert | 02/02 - 04/02 (night @Home) |
+| Jacopo | 28/01 - 05/02 |
+| Kieran | 28/01 - 05/02 |
+| Laurent | 28/01 - 05/02 |
+| -Magnus- |
+| Marek |
+| -Morimoto- |
+| -Ito- |
+| Niklas | 28/01 - 05/02 |
+| Simon | 02/02 - 04/02 |
+| Ulrich | 01/02 - 05/02 |
+| Wolfram | 01/02 - 05/02 |
+
+h2. Activities in Brussels
+
+| Date                 | Time              | Activity                                 | Location                           |
+| Monday 2018-01-29    | 09:00 - 18:00     | GMSL Code Camp                           | Antoine Dansaert 24, 1000 Brussels |
+| Tuesday 2018-01-30   | 09:00 - 18:00     | GMSL Code Camp                           | Antoine Dansaert 24, 1000 Brussels |
+|                      | 19:00 - 21:00     | San Sablon                               |                                    |
+| Wednesday 2018-01-31 | 09:00 - 13:00     | GMSL Code Camp                           | Antoine Dansaert 24, 1000 Brussels |
+| Thursday 2018-02-01  | 14:30 - 18:00     | Multimedia Meeting                       | Antoine Dansaert 24, 1000 Brussels |
+| Thursday 2018-02-01  | 19:00             | Dinner                                   | https://www.bonsoirclara.com/en/   |
+| Friday 2018-02-02    | 09:00 - 19:00     | Core, I/O Group, Virtualization BOF?     | http://www.hotelbloom.com/         |
+| Friday 2018-02-02    | 19:30             | Dinner                                   | http://www.kokob.be/               |
+| Saturday 2018-02-03  | 09:30 - 19:00     | FOSDEM                                   | https://fosdem.org/2018/           |
+| Sunday 2018-02-04    | 09:00 - 18:00     | FOSDEM                                   | https://fosdem.org/2018/           |
+
+h2. List of material for Multimedia code camp
+
+|Who                   | What                                                                       |
+|/4. Jacopo            | Scope (with probes)                                                        |
+| Multimeter                                                                                        |
+| Network switch                                                                                    |
+| Power strip                                                                                       |
+|/3. Kieran            | Salvator-X H3 + Expansion board                                            |
+| 8x RDACM20                                                                                        |
+| 8x RDACM21                                                                                        |
+|/3. Laurent           | Kingfisher (including H3SK and MAX9286 add-on boards)                      |
+| Multimeter                                                                                        |
+| Power strip                                                                                       |
+|/3. Niklas            | V3M + Expansion board                                                      |
+| 8x RDACM20                                                                                        |
+| 8x RDACM21                                                                                        |
+
+h2. Agenda for Friday Meeting
+
+|    09:00 - 09:30 | Welcome Coffee                                   |
+|/2. 09:30 - 10:30 | I/O Group Meeting (incl. future tasks)           |
+|                      - i2c mux                                      |
+|    10:30 - 11:00 | Coffee Break                                     |
+|/3. 11:00 - 12:30 | Core Group Meeting (incl. future tasks) (60')    |
+|                      - R-Car Gen2 Watchdog Timer                    |
+|                    Improving renesas-drivers (30')                  |
+|    12:30 - 13:30 | Lunch                                            |
+|/4. 13:30 - 15:30 | Virtualization BoF (120')                        |
+|                      - Status reports                               |
+|                      - Issues                                       |
+|                      - Next steps                                   |
+|    15:30 - 16:00 | Coffee Break                                     |
+|/2. 16:00 - 19:00 | Board Farm, Test automation, Remote access (60') |
+|                    Hacking (Eagle, Draak, ...)? (120')              |
+
+h2. Meeting minutes (thanks Kieran!)
+
+h1. I/O Group meeting
+
+h2. RAVB : 2K Header limits
+
+* Niklas has an idea to increase this limit.
+* Difference between transmitting and receiving.
+
+
+h2. SPECTRE
+
+* Wolfram raised that he is Interested in SPECTRE
+* 3 Variants of SPECTRE, v2 is the worst - and it's unknown if we can fix it.
+* Needs updated kernel (not available for ARM yet) and userspace rebuild.
+* Userspace rebuilds (retpoline) may have a performance penalty.
+* RMK has reportedly got PoC's which are even more effective at utilising the vulnerabilities.
+* Meltdown (PTI) should be an easier fix.
+
+
+h2. Handling Security Issues in a broad context:
+
+* Laurent raised that a bug in linux-media to read and write kernel memory.
+
+h2. SDHI
+
+* Rasied by Simon in absence
+* Next steps for HS400
+* Driver and H3/M3-W enablement patches are pending review
+* Second upport attempt seemed much easier than first as BSP seems closer to upstream now
+* Would like to review other SDHI patches in BSP v3.6.0 with Wolfram, possibly on IRC some time in February
+** Yes. WSA, SH to review.
+
+h2. I2C demux
+
+* Raised by Simon in absence
+* Understands that consensus from San Sebastian meeting was to accept changes despite OOpses in some subsystems when switching cores. Not entirely happy but willing to accept that consensus.
+* Would appreciate a rebast/repost of the dts patches
+**  Wolfram will repost patches. Ack, thanks!
+* Any other issues
+
+h2. MAX9286 GPIO Controller Regulator Loop
+
+* Circular dependency on GPIO regulator for cameras on Eagle-V3M
+* MFD is a lot of over head - but it the only 'correct' solution.
+
+h2. IO Group: General Status
+
+* Short meeting style is good for all. (and taken on by other  groups)
+* Wolfram reprhases summary to make sure he understands it in his own words.
+* Wolfram likes Quarterly scheduling of tasks.
+* IO tasks agreed by mid-january
+** raised externally that this agreement is at least 1 month late however
+** high confidence by end of December
+
+h2. I2C Mux
+
+* Can we leave mux channels open to improve performance (reduce 'deselect' calls)
+* We can have multiple devices with the same 'default' address, and there must be a negotiation stage to re-configure each address on the child bus
+** Currently handled by the device driver
+* Should core be more involved in this?
+* WSA to think about mux topic :-D
+
+h1. Core Group Meeting
+
+* Status updates round the table
+* We're expecting a new Salvator-XS M3-N board potentially sometime in February ?
+* Stout board (H2) getting improved support ...
+* Can we add elinux-wiki links to cover letters when we send relevant patch sets for additional tasks.
+
+h2. RCar Gen2 Watchdog Timer
+
+* We have a patchset (with 25 patches) from Fabrizio Casteu, and we need to test them.
+* Geert to try on Goelsch
+* WSA to try on Lager
+* Marek to try on Stout.
+
+h2. Future Tasks
+
+* With the upcoming complex Virtualised use cases, adding support for JTAG debuggers would assist in debugging complex issues of the virtualised environments at the core level.
+* Function enablement on boards as we get them.
+* New platforms share lots of support, and with the shared dtsi infrastructure board bringup should be rapid.
+* Expand IPMMU IO Vspace to more than 32 bits (neg)
+* Blocked on work from Magnus
+
+h3. Renesas Drivers
+
+* Improving Integration for multimedia
+* Magnus would like a central place for latest multimedia work.
+* it easier to use especially from a developer's point of view
+
+h3. Goals
+
+* "Renesas-next" but with WIP
+* Testing -> Continuous testing
+* Shouldn't be a development base
+* Doing development on renesas-drivers, means you have to rebase on main before submission.
+* Consumption by the BSP
+** Releasing a custom kernel -> But we are not a distribution with the resources to test each release.
+* Can we have a 'latest topic' branch to continue automatic integration into renesas-drivers
+*  standardise the feature branches and tag naming scheme
+* Dependency handling
+* mainline
+* subsystem.next
+* topic branch
+* If you have complex / stale dependencies - then it's fine to leave them out of Renesas-Drivers
+
+h3. Topic naming scheme bikeshedding:
+
+* topic/name-version
+* subsystem/next/drivers/feature/
+* subsystem/next/core/feature/
+* topic/subsystems/?/feature/
+* subsystem/topic/?
+
+h3. Preference:
+
+* Still to be considered ...
+
+h3. Update for magnus:
+
+* Standardize on a naming scheme, to define the topic prefix. From there Geert will integrate the latest version based on that prefix.
+
+h1. Virtualisation
+
+h2. QEMU running on an arm64 guest
+
+* Plain QEMU if host is amd64 or arm64
+* KVM if host is arm64 (R-CAR H3 or M3-W)
+* KVM needs ARM trusted firmware with HYP support
+** https://elinux.org/R-Car/Virtualization
+
+h2. Libvirt
+
+* virsh (on amd64, or arm64)
+* virt-manager (on amd64)
+** https://elinux.org/R-Car/Virtualization/Libvirt
+* Provides an abstracted interface common description for multiple virtualisation options.
+
+h3. Virtualisation Status
+
+* Walk trhough of GPIO pass through from Geert
+* Configuration of host to enable GPIO passthrough
+
+h3. Guest side (QEMU)
+
+* vfio-platform support not yet supported but patches were posted
+
+h2. Next Steps
+
+* Reset driver, using CPG/MSSR
+* Interrupts
+* IOMMU groups
+
+h1. Board Farms
+
+* BayLibre ACME is sold out. Can we make or obtain alternatives?
+* Prototyping with a Teensy 3.2 (freescale cortex-M4)
+* Kit: (Search aliexpress for 'travel router usb')
diff --git a/wiki/top.wiki b/wiki/top.wiki
index 43e64a2..66a0ec2 100644
--- a/wiki/top.wiki
+++ b/wiki/top.wiki
@@ -45,6 +45,7 @@ h1. PeriPeriCon
 
 * [[2019-02-periperi]]
 * [[2018-10-periperi]]
+* [[2018-02-periperi]]
 * [[periperi-2016-02]]
 * [[miniperi-2016-07]]
 * [[renesas-2016-07]]
@@ -53,4 +54,3 @@ h1. PeriPeriCon
 * [[miniperi-2017-05]]
 * [[periperi-2017-09]]
 * [[miniperi-2017-10]]
-* [[periperi-2018-02]]