[0/3] drm/panic: Add a kmsg dump screen

Message

Jocelyn Falempe May 31, 2024, 8:06 a.m. UTC

Add a kmsg dump option, which will display the last lines of kmsg,
and should be similar to fbcon.
Add a Kconfig choice for the panic screen, so that the user can
choose between this new kmsg dump, or the userfriendly option.

Patch 1-2 are the same as https://patchwork.freedesktop.org/series/133963/
and are here to avoid conflicts.

Jocelyn Falempe (3):
  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 kmsg dump screen

 drivers/gpu/drm/Kconfig     |  21 +++
 drivers/gpu/drm/drm_panic.c | 322 +++++++++++++++++++++++-------------
 include/drm/drm_panic.h     |   9 +
 3 files changed, 241 insertions(+), 111 deletions(-)


base-commit: 86266829ea755f737762ebda614c59b136c8feac