[v2,0/9] drm/nouveau: Various fixes for GP10B

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, it'd be great if you could give an Acked-by on those two patches
so that Ben can pick them both up into the Nouveau tree. Alternatively I
can put them both into a stable branch and send a pull request to both
of you. Or yet another alternative would be for Joerg to apply them now
and Ben to wait for v5.5-rc1 until he picks up the rest. All of those
work for me.

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                         | 46 ++++++-----
 18 files changed, 249 insertions(+), 71 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

On Sat, Nov 02, 2019 at 06:56:28PM +0100, Thierry Reding 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, it'd be great if you could give an Acked-by on those two patches
> so that Ben can pick them both up into the Nouveau tree. Alternatively I
> can put them both into a stable branch and send a pull request to both
> of you. Or yet another alternative would be for Joerg to apply them now
> and Ben to wait for v5.5-rc1 until he picks up the rest. All of those
> work for me.

Hi Joerg, Ben,

do you guys have any further comments on this series? I've got an
updated patch to silence the warning that the kbuild robot flagged, so
if there are no other comments I can send a final v3 of the series.

Thierry

On Mon, Nov 18, 2019 at 11:45 PM Thierry Reding
<thierry.reding@gmail.com> wrote:
>
> On Sat, Nov 02, 2019 at 06:56:28PM +0100, Thierry Reding 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, it'd be great if you could give an Acked-by on those two patches
> > so that Ben can pick them both up into the Nouveau tree. Alternatively I
> > can put them both into a stable branch and send a pull request to both
> > of you. Or yet another alternative would be for Joerg to apply them now
> > and Ben to wait for v5.5-rc1 until he picks up the rest. All of those
> > work for me.
>
> Hi Joerg, Ben,
>
> do you guys have any further comments on this series? I've got an
> updated patch to silence the warning that the kbuild robot flagged, so
> if there are no other comments I can send a final v3 of the series.
I'm on leave at the moment.  But the nouveau fixes look fine to me and
I'm happy to pick them up once you send a v3, and allow Jeorg to apply
the rest through his tree.

Thanks,
Ben.

>
> Thierry

On Sat, Nov 02, 2019 at 06:56:28PM +0100, Thierry Reding wrote:
> Thierry Reding (9):
>   iommu: Document iommu_fwspec::flags field
>   iommu: Add dummy dev_iommu_fwspec_get() helper

Acked-by: Joerg Roedel <jroedel@suse.de>