On Tue, Dec 10, 2019 at 06:15:30PM +1000, Ben Skeggs wrote:
On Mon, 9 Dec 2019 at 22:00, Thierry Reding thierry.reding@gmail.com wrote:
From: Thierry Reding treding@nvidia.com
Hi Ben,
here's a revised subset of the patches I had sent out a couple of weeks ago. I've reworked the BAR2 accesses in the way that you had suggested, which at least for GP10B turned out to be fairly trivial to do. I have not looked in detail at this for GV11B yet, but a cursory look showed that BAR2 is accessed in more places, so the equivalent for GV11B might be a bit more involved.
Other than that, not a lot has changed since then. I've added a couple of precursory patches to add IOMMU helper dummies for the case where IOMMU is disabled (as suggested by Ben Dooks).
Joerg has given an Acked-by on the first two patches, so I think it'd be easiest if you picked those up into the Nouveau tree because of the build dependency of subsequent patches on them.
I've merged all the patches in my tree, after fixing a small build issue on !TEGRA in the WPR config readout patch.
Thanks for taking care of that. I'm going to need to add a non-Tegra configuration to my build scripts and make sure I run those.
On a related note: have you ever considered submitting the Nouveau tree for linux-next? That'd be very convenient for people like me working on multiple patch series at the same time. In fact I've got another set of patches against Nouveau that I want to send out after you've merged these. Technically I would need to rebase them on your tree (since there may be dependencies on this set), but that means I need to pull in both your tree and linux-next if I want to keep up to date on all fronts and test all patches in my local tree at the same time.
I'm not sure how well that would fit into your workflow. It's typically not more effort than setting up a permanent branch that you can push to whenever there's something that's ready for broader consumption. Beyond the initial setup (which is really not more complicated than sending Stephen an email with a URL and the branch name), it's really quite simple and goes a long way to get broad testing early on. And it's especially handy to catch potential conflicts with cross-subsystem changes like the IOMMU patches in this series.
Thierry
Thierry Reding (9): iommu: Document iommu_fwspec::flags field iommu: Add dummy dev_iommu_fwspec_get() helper drm/nouveau: fault: Add support for GP10B drm/nouveau: tegra: Do not try to disable PCI device drm/nouveau: tegra: Avoid pulsing reset twice drm/nouveau: tegra: Set clock rate if not set drm/nouveau: secboot: Read WPR configuration from GPU registers drm/nouveau: gp10b: Add custom L2 cache implementation drm/nouveau: gp10b: Use correct copy engine
.../drm/nouveau/include/nvkm/subdev/fault.h | 1 + .../gpu/drm/nouveau/include/nvkm/subdev/ltc.h | 1 + drivers/gpu/drm/nouveau/nouveau_drm.c | 3 +- .../gpu/drm/nouveau/nvkm/engine/device/base.c | 6 +- .../drm/nouveau/nvkm/engine/device/tegra.c | 24 ++++-- .../gpu/drm/nouveau/nvkm/subdev/fault/Kbuild | 1 + .../gpu/drm/nouveau/nvkm/subdev/fault/base.c | 2 +- .../gpu/drm/nouveau/nvkm/subdev/fault/gp100.c | 17 ++-- .../gpu/drm/nouveau/nvkm/subdev/fault/gp10b.c | 53 ++++++++++++ .../gpu/drm/nouveau/nvkm/subdev/fault/gv100.c | 1 + .../gpu/drm/nouveau/nvkm/subdev/fault/priv.h | 10 +++ .../gpu/drm/nouveau/nvkm/subdev/ltc/Kbuild | 1 + .../gpu/drm/nouveau/nvkm/subdev/ltc/gp10b.c | 65 +++++++++++++++ .../gpu/drm/nouveau/nvkm/subdev/ltc/priv.h | 2 + .../drm/nouveau/nvkm/subdev/secboot/gm200.h | 2 +- .../drm/nouveau/nvkm/subdev/secboot/gm20b.c | 81 ++++++++++++------- .../drm/nouveau/nvkm/subdev/secboot/gp10b.c | 4 +- include/linux/iommu.h | 47 ++++++----- 18 files changed, 249 insertions(+), 72 deletions(-) create mode 100644 drivers/gpu/drm/nouveau/nvkm/subdev/fault/gp10b.c create mode 100644 drivers/gpu/drm/nouveau/nvkm/subdev/ltc/gp10b.c
-- 2.23.0
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