[PATCH v4 0/3] drm/nouveau: Add drm_panic support for nv50+

[Lyude Paul]

Reviewed-by: Lyude Paul <lyude at redhat.com>

On Tue, 2024-10-22 at 20:39 +0200, Jocelyn Falempe wrote:
> This series adds basic drm_panic support for nouveau.
> I've tested on GTX1650 (Turing), GeForce GT 1030 (Pascal) and
> Geforce 8800 GTS (Tesla), 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.
>  
> v4:
>  * Refactor and move the tiling code from nouveau_display.c to dispnv50/tile.h, so that
>  in can be re-used by drm_panic. (Lyude)
>  * Refactor get_scanout_buffer() to use the new dispnv50/tile.h
>  * use drm_warn() instead of pr_warn() in get_scanout_buffer
>  
> Jocelyn Falempe (3):
>   drm/panic: Add ABGR2101010 support
>   drm/nouveau/disp: Move tiling functions to dispnv50/tile.h
>   drm/nouveau: Add drm_panic support for nv50+
> 
>  drivers/gpu/drm/drm_panic.c               |  10 ++
>  drivers/gpu/drm/nouveau/dispnv50/tile.h   |  63 +++++++++++
>  drivers/gpu/drm/nouveau/dispnv50/wndw.c   | 129 +++++++++++++++++++++-
>  drivers/gpu/drm/nouveau/nouveau_display.c |  59 ++--------
>  4 files changed, 210 insertions(+), 51 deletions(-)
>  create mode 100644 drivers/gpu/drm/nouveau/dispnv50/tile.h
> 
> 
> base-commit: 2320c9e6a768d135c7b0039995182bb1a4e4fd22

-- 
Cheers,
 Lyude Paul (she/her)
 Software Engineer at Red Hat

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