This patch series adds the nova-drm skeleton driver.
nova-drm is connected to nova-core through the auxiliary bus and implements the
DRM parts of the nova driver stack.
For now, it implements the fundamental DRM abstractions, i.e. creates a DRM
device and registers it, exposing a three sample IOCTLs.
DRM_IOCTL_NOVA_GETPARAM
- provides the PCI bar size from the bar that maps the GPUs VRAM from
nova-core
DRM_IOCTL_NOVA_GEM_CREATE
- creates a new dummy DRM GEM object and returns a handle
DRM_IOCTL_NOVA_GEM_INFO
- provides metadata for the DRM GEM object behinda given handle
I implemented a small userspace test suite [1] that utilizes this
interface.
This patch series depends on the auxiliary bus abstractions [2] and the DRM
abstractions [3]; the patches from this series are also in [4].
[1] https://gitlab.freedesktop.org/dakr/drm-test
[2]
https://web.git.kernel.org/pub/scm/linux/kernel/git/dakr/linux.git/log/?h=rust/auxiliary
[3] https://gitlab.freedesktop.org/drm/misc/kernel/-/tree/topic/rust-drm
[4] https://gitlab.freedesktop.org/drm/nova/-/tree/staging/nova-drm
Danilo Krummrich (2):
gpu: nova-core: register auxiliary device for nova-drm
drm: nova-drm: add initial driver skeleton
MAINTAINERS | 12 ++++
drivers/gpu/drm/Kconfig | 2 +
drivers/gpu/drm/Makefile | 1 +
drivers/gpu/drm/nova/Kconfig | 14 ++++
drivers/gpu/drm/nova/Makefile | 3 +
drivers/gpu/drm/nova/driver.rs | 70 ++++++++++++++++++++
drivers/gpu/drm/nova/file.rs | 68 +++++++++++++++++++
drivers/gpu/drm/nova/gem.rs | 49 ++++++++++++++
drivers/gpu/drm/nova/nova.rs | 17 +++++
drivers/gpu/nova-core/Kconfig | 1 +
drivers/gpu/nova-core/driver.rs | 9 ++-
drivers/gpu/nova-core/nova_core.rs | 2 +
include/uapi/drm/nova_drm.h | 101 +++++++++++++++++++++++++++++
rust/uapi/uapi_helper.h | 1 +
14 files changed, 349 insertions(+), 1 deletion(-)
create mode 100644 drivers/gpu/drm/nova/Kconfig
create mode 100644 drivers/gpu/drm/nova/Makefile
create mode 100644 drivers/gpu/drm/nova/driver.rs
create mode 100644 drivers/gpu/drm/nova/file.rs
create mode 100644 drivers/gpu/drm/nova/gem.rs
create mode 100644 drivers/gpu/drm/nova/nova.rs
create mode 100644 include/uapi/drm/nova_drm.h
--
2.49.0
