[PATCH 0/5] drm/nouveau: Add drm_panic support for nv50+

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This series adds basic drm_panic support for nouveau.
Patches 1-4 Add missing bits in drm_panic (ABGR2101010, set_pixel() for tiling, ...)
Patch 5 registers nouveau to drm_panic, and handle tiling.
I've tested on a GTX1650, while running Gnome/Wayland desktop.

I didn't find documentation about nVidia tiling, so it may not
work on other GPU than GTX1650.

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

Best regards,

-- 

Jocelyn

Jocelyn Falempe (5):
  drm/panic: Add ABGR2101010 support
  drm/panic: only draw the foreground color in drm_panic_blit()
  drm/panic: Add a set_pixel() callback to drm_scanout_buffer
  drm/panic: add a private pointer to drm_scanout_buffer
  drm/nouveau: Add drm_panic support for nv50+

 drivers/gpu/drm/drm_panic.c             | 183 ++++++++++++++----------
 drivers/gpu/drm/nouveau/dispnv50/wndw.c | 127 +++++++++++++++-
 include/drm/drm_panic.h                 |  15 ++
 3 files changed, 247 insertions(+), 78 deletions(-)


base-commit: 484436ec5c2bffe8f346a09ae1cbc4cbf5e50005
-- 
2.45.0




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