[v2,0/3] drm/nouveau: Add drm_panic support for nv50+

Message

Jocelyn Falempe Sept. 6, 2024, 10:02 a.m. UTC

This series adds basic drm_panic support for nouveau.
Patches 1-2 Add missing bits in drm_panic (ABGR2101010, private data for set_pixel())
Patch 3 registers nouveau to drm_panic, and handle tiling.
I've tested on a GTX1650, while running Gnome/Wayland desktop.

It should work on other nv50+ cards, but I didn't test them.

To test it, you need to build your kernel with CONFIG_DRM_PANIC=y, and run:

echo c > /proc/sysrq-trigger

or you can enable CONFIG_DRM_PANIC_DEBUG and run:

echo 1 > /sys/kernel/debug/dri/0/drm_panic_plane_0

v2:
 * Rebase and drop already merged patches.
 * Rework the tiling algorithm, using "swizzle" to compute the offset
   inside the block.

Jocelyn Falempe (3):
  drm/panic: Add ABGR2101010 support
  drm/panic: add a private pointer to struct drm_scanout_buffer
  drm/nouveau: Add drm_panic support for nv50+

 drivers/gpu/drm/drm_panic.c             |  10 +++
 drivers/gpu/drm/nouveau/dispnv50/wndw.c | 107 +++++++++++++++++++++++-
 include/drm/drm_panic.h                 |   7 ++
 3 files changed, 122 insertions(+), 2 deletions(-)


base-commit: e8653e63e834e4c7de60b81b8b24deb7bdd3bf56