This series adds basic drm_panic support for nouveau. Patches 1 Add ABGR2101010 support in drm_panic. Patch 2 registers nouveau to drm_panic, and handle tiling. I've tested on a GTX1650 (Turing) and GF 8800 GT (Tesla), while running Gnome/Wayland desktop, and in VT. 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. v3: * Fix support for Tesla GPU, which have simpler tiling. * Drop "add a private pointer to struct drm_scanout_buffer". * Use nouveau_framebuffer_get_layout() to get the tiling parameters. * Have 2 set_pixel() functions, depending on GPU family. Jocelyn Falempe (2): drm/panic: Add ABGR2101010 support drm/nouveau: Add drm_panic support for nv50+ drivers/gpu/drm/drm_panic.c | 10 ++ drivers/gpu/drm/nouveau/dispnv50/wndw.c | 139 +++++++++++++++++++++++- 2 files changed, 147 insertions(+), 2 deletions(-) base-commit: 9d443deb0441b9dbb22a9aac3b471da05220df1b -- 2.46.0
