[PATCH 00/10] drm/panfrost: Misc fixes/improvements

From: Boris Brezillon <boris.brezillon@collabora.com>
To: Rob Herring <robh+dt@kernel.org>,
	Tomeu Vizoso <tomeu.vizoso@collabora.com>,
	Alyssa Rosenzweig <alyssa.rosenzweig@collabora.com>,
	Steven Price <steven.price@arm.com>,
	Robin Murphy <robin.murphy@arm.com>
Cc: Boris Brezillon <boris.brezillon@collabora.com>,
	dri-devel@lists.freedesktop.org
Subject: [PATCH 00/10] drm/panfrost: Misc fixes/improvements
Date: Mon, 21 Jun 2021 15:25:29 +0200	[thread overview]
Message-ID: <20210621132539.1683000-1-boris.brezillon@collabora.com> (raw)

Hello,

Here's is collection of patches addressing some stability issues.

The first patch has been submitted a while ago but was lacking a way
to kill in-flight jobs when a context is closed; which is now addressed
in patch 10.

The rest of those patches are improving fault handling (with some code
refactoring in the middle).

"drm/panfrost: Do the exception -> string translation using a table"
still has a TODO. I basically mapped all exception types to
EINVAL since most faults are triggered by invalid job/shaders, but
there might be some exceptions that should be translated to something
else. Any feedback on that aspect is welcome.

Regards,

Boris

Boris Brezillon (10):
  drm/panfrost: Make sure MMU context lifetime is not bound to
    panfrost_priv
  drm/panfrost: Get rid of the unused JS_STATUS_EVENT_ACTIVE definition
  drm/panfrost: Drop the pfdev argument passed to
    panfrost_exception_name()
  drm/panfrost: Expose exception types to userspace
  drm/panfrost: Disable the AS on unhandled page faults
  drm/panfrost: Expose a helper to trigger a GPU reset
  drm/panfrost: Reset the GPU when the AS_ACTIVE bit is stuck
  drm/panfrost: Do the exception -> string translation using a table
  drm/panfrost: Don't reset the GPU on job faults unless we really have
    to
  drm/panfrost: Kill in-flight jobs on FD close

 drivers/gpu/drm/panfrost/panfrost_device.c | 143 +++++++++++------
 drivers/gpu/drm/panfrost/panfrost_device.h |  21 ++-
 drivers/gpu/drm/panfrost/panfrost_drv.c    |  50 ++----
 drivers/gpu/drm/panfrost/panfrost_gem.c    |  20 ++-
 drivers/gpu/drm/panfrost/panfrost_gpu.c    |   2 +-
 drivers/gpu/drm/panfrost/panfrost_job.c    |  74 ++++++---
 drivers/gpu/drm/panfrost/panfrost_mmu.c    | 173 ++++++++++++++-------
 drivers/gpu/drm/panfrost/panfrost_mmu.h    |   5 +-
 drivers/gpu/drm/panfrost/panfrost_regs.h   |   3 -
 include/uapi/drm/panfrost_drm.h            |  65 ++++++++
 10 files changed, 371 insertions(+), 185 deletions(-)

-- 
2.31.1