kernel/linux.git/drivers/gpu/drm/nouveau/include/nvrm, branch linux-7.0.y

drm/nouveau/gsp: switch to a simpler GSP-RM header layout

2025-05-18T20:29:23+00:00

Rather than using OpenRM's directory structure for headers, move to a layout that's split roughly around RM API boundaries. Also move the headers from include/nvrm to subdev/gsp/rm/r535/nvrm, with the rest of the r535-specific code. Signed-off-by: Ben Skeggs Reviewed-by: Dave Airlie Reviewed-by: Timur Tabi Tested-by: Timur Tabi Signed-off-by: Dave Airlie

nouveau/gsp: document some aspects of GSP-RM

2023-11-29T23:40:23+00:00

Document a few aspects of communication with GSP-RM. These comments are derived from notes made during early development of GSP-RM support in Nouveau, but were not included in the initial patch set. Reviewed-by: Dave Airlie Signed-off-by: Timur Tabi Reviewed-by: Danilo Krummrich Signed-off-by: Danilo Krummrich Link: https://patchwork.freedesktop.org/patch/msgid/20231122202840.2565153-1-ttabi@nvidia.com

nouveau/gsp: replace zero-length array with flex-array member and use __counted_by

2023-11-29T02:11:49+00:00

Fake flexible arrays (zero-length and one-element arrays) are deprecated, and should be replaced by flexible-array members. So, replace zero-length array with a flexible-array member in `struct PACKED_REGISTRY_TABLE`. Also annotate array `entries` with `__counted_by()` to prepare for the coming implementation by GCC and Clang of the `__counted_by` attribute. Flexible array members annotated with `__counted_by` can have their accesses bounds-checked at run-time via `CONFIG_UBSAN_BOUNDS` (for array indexing) and `CONFIG_FORTIFY_SOURCE` (for strcpy/memcpy-family functions). This fixes multiple -Warray-bounds warnings: drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c:1069:29: warning: array subscript 0 is outside array bounds of 'PACKED_REGISTRY_ENTRY[0]' [-Warray-bounds=] drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c:1070:29: warning: array subscript 0 is outside array bounds of 'PACKED_REGISTRY_ENTRY[0]' [-Warray-bounds=] drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c:1071:29: warning: array subscript 0 is outside array bounds of 'PACKED_REGISTRY_ENTRY[0]' [-Warray-bounds=] drivers/gpu/drm/nouveau/nvkm/subdev/gsp/r535.c:1072:29: warning: array subscript 0 is outside array bounds of 'PACKED_REGISTRY_ENTRY[0]' [-Warray-bounds=] While there, also make use of the struct_size() helper, and address checkpatch.pl warning: WARNING: please, no spaces at the start of a line This results in no differences in binary output. Signed-off-by: Gustavo A. R. Silva Reviewed-by: Kees Cook Signed-off-by: Danilo Krummrich Link: https://patchwork.freedesktop.org/patch/msgid/ZVZbX7C5suLMiBf+@work

nouveau/gsp: move to 535.113.01

2023-11-03T02:57:14+00:00

This moves the initial effort to the latest 535 firmware. The gsp msg structs have changed, and the message passing also. The wpr also seems to have some struct changes. This version of the firmware will be what we are stuck on for a while, until we can refactor the driver and work out a better path forward. Reviewed-by: Danilo Krummrich Signed-off-by: Dave Airlie

drm/nouveau/ofa/r535: initial support

2023-10-31T05:08:19+00:00

Adds support for allocating OFA classes from RM. Signed-off-by: Ben Skeggs Signed-off-by: Dave Airlie Link: https://patchwork.freedesktop.org/patch/msgid/20230918202149.4343-45-skeggsb@gmail.com

drm/nouveau/nvjpg/r535: initial support

2023-10-31T05:08:19+00:00

Adds support for allocating NVJPG classes from RM. Signed-off-by: Ben Skeggs Signed-off-by: Dave Airlie Link: https://patchwork.freedesktop.org/patch/msgid/20230918202149.4343-44-skeggsb@gmail.com

drm/nouveau/nvenc/r535: initial support

2023-10-31T05:08:18+00:00

Adds support for allocating VIDEO_ENCODER classes from RM. Signed-off-by: Ben Skeggs Signed-off-by: Dave Airlie Link: https://patchwork.freedesktop.org/patch/msgid/20230918202149.4343-43-skeggsb@gmail.com

drm/nouveau/nvdec/r535: initial support

2023-10-31T05:08:17+00:00

Adds support for allocating VIDEO_DECODER classes from RM. Signed-off-by: Ben Skeggs Signed-off-by: Dave Airlie Link: https://patchwork.freedesktop.org/patch/msgid/20230918202149.4343-42-skeggsb@gmail.com

drm/nouveau/gr/r535: initial support

2023-10-31T05:08:17+00:00

Adds support for allocating GR classes from RM. Signed-off-by: Ben Skeggs Signed-off-by: Dave Airlie Link: https://patchwork.freedesktop.org/patch/msgid/20230918202149.4343-41-skeggsb@gmail.com

drm/nouveau/ce/r535: initial support

2023-10-31T05:08:17+00:00

Adds support for allocating DMA_COPY classes from RM. Signed-off-by: Ben Skeggs Signed-off-by: Dave Airlie Link: https://patchwork.freedesktop.org/patch/msgid/20230918202149.4343-40-skeggsb@gmail.com