From: Thierry Reding <treding@xxxxxxxxxx> 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. 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
