From: "Noralf Trønnes" <noralf@tronnes.org>
To: dri-devel@lists.freedesktop.org
Cc: daniel.vetter@ffwll.ch, intel-gfx@lists.freedesktop.org,
"Noralf Trønnes" <noralf@tronnes.org>,
darwish.07@gmail.com
Subject: [PATCH v2 0/3] drm: Add panic handling
Date: Mon, 11 Mar 2019 18:42:15 +0100 [thread overview]
Message-ID: <20190311174218.51899-1-noralf@tronnes.org> (raw)
This patchset adds a way for DRM drivers to display kernel messages
during panic().
I had a Windows blue screen last year and remembered this patchset, so I
did a new version that I never got around to put out. Now that panic
handling came up on the ML, I'm sending it out as part of the discussion.
TODO:
Determine which part of the framebuffer that is actually visible. I
don't know enough about KMS to do this. See drm_panic_kmsg_render_screen().
Testing:
I have tested[1] using the formats and resolutions support by vc4 and
modetest. I have even recorded it[2]. RG24 and BG24 gave an unexpected
result, not sure what to make of it.
Noralf.
[1] https://gist.github.com/notro/b9fdff4c6a68a307091e970598f27ed0
[2] https://youtu.be/lZ80vL4dgpE
Version 1 (Aug 2016): https://patchwork.freedesktop.org/series/10867/
Changes since version 1:
- Use kernel message dumper
- Add multicolumn support
- Support some YUV formats
- cma: vmap PRIME buffers on import to support that case
Noralf Trønnes (3):
drm: Add support for panic message output
drm/cma-helper: Add support for panic screen
drm/vc4: Support for panic screen
drivers/gpu/drm/Kconfig | 3 +
drivers/gpu/drm/Makefile | 2 +-
drivers/gpu/drm/drm_drv.c | 3 +
drivers/gpu/drm/drm_fb_cma_helper.c | 43 ++++
drivers/gpu/drm/drm_framebuffer.c | 117 +++++++++
drivers/gpu/drm/drm_gem_cma_helper.c | 3 +
drivers/gpu/drm/drm_internal.h | 4 +
drivers/gpu/drm/drm_panic.c | 363 +++++++++++++++++++++++++++
drivers/gpu/drm/vc4/vc4_kms.c | 3 +-
include/drm/drm_fb_cma_helper.h | 4 +-
include/drm/drm_framebuffer.h | 41 +++
11 files changed, 583 insertions(+), 3 deletions(-)
create mode 100644 drivers/gpu/drm/drm_panic.c
--
2.20.1
_______________________________________________
Intel-gfx mailing list
Intel-gfx@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
next reply other threads:[~2019-03-11 17:42 UTC|newest]
Thread overview: 53+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-03-11 17:42 Noralf Trønnes [this message]
2019-03-11 17:42 ` [PATCH v2 1/3] drm: Add support for panic message output Noralf Trønnes
2019-03-11 19:23 ` Daniel Vetter
2019-03-11 19:29 ` Daniel Vetter
2019-03-11 22:40 ` Noralf Trønnes
2019-03-12 9:53 ` Daniel Vetter
2019-03-12 9:59 ` Daniel Vetter
2019-03-11 22:33 ` Noralf Trønnes
2019-03-12 10:58 ` Daniel Vetter
2019-03-12 13:29 ` Noralf Trønnes
2019-03-13 3:53 ` Ahmed S. Darwish
2019-03-12 22:13 ` Ahmed S. Darwish
2019-03-13 7:49 ` John Ogness
2019-03-13 8:37 ` Daniel Vetter
2019-03-14 2:51 ` Ahmed S. Darwish
2019-03-14 9:32 ` Daniel Vetter
2019-03-14 9:43 ` John Ogness
2019-03-14 9:52 ` John Ogness
2019-03-15 10:56 ` Daniel Vetter
2019-03-13 8:35 ` Daniel Vetter
2019-03-14 4:45 ` Ahmed S. Darwish
2019-03-14 9:35 ` Daniel Vetter
2019-03-13 10:24 ` Noralf Trønnes
2019-03-13 4:05 ` Ahmed S. Darwish
2019-03-11 19:55 ` Sam Ravnborg
2019-03-12 10:47 ` Michel Dänzer
2019-03-12 16:17 ` [Intel-gfx] " Ville Syrjälä
2019-03-12 17:15 ` Noralf Trønnes
2019-03-12 17:25 ` Ville Syrjälä
2019-03-12 17:37 ` Noralf Trønnes
2019-03-12 17:44 ` Noralf Trønnes
2019-03-12 18:02 ` [Intel-gfx] " Ville Syrjälä
2019-03-13 8:29 ` Christian König
2019-03-13 8:43 ` [Intel-gfx] " Daniel Vetter
2019-03-13 9:35 ` Michel Dänzer
2019-03-13 13:31 ` [Intel-gfx] " Ville Syrjälä
2019-03-13 13:37 ` Christian König
2019-03-13 15:38 ` Michel Dänzer
2019-03-13 15:54 ` [Intel-gfx] " Christian König
2019-03-13 16:16 ` Kazlauskas, Nicholas
2019-03-13 17:30 ` Koenig, Christian
2019-03-13 17:33 ` Michel Dänzer
2019-03-13 17:41 ` Kazlauskas, Nicholas
2019-03-14 9:50 ` Daniel Vetter
2019-03-14 12:44 ` Kazlauskas, Nicholas
2019-03-15 10:58 ` [Intel-gfx] " Daniel Vetter
2019-03-13 17:52 ` Koenig, Christian
2019-03-14 9:40 ` [Intel-gfx] " Daniel Vetter
2019-03-11 17:42 ` [PATCH v2 2/3] drm/cma-helper: Add support for panic screen Noralf Trønnes
2019-03-11 17:42 ` [PATCH v2 3/3] drm/vc4: Support " Noralf Trønnes
2019-03-11 18:53 ` [PATCH v2 0/3] drm: Add panic handling Daniel Vetter
2019-03-17 23:06 ` Ahmed S. Darwish
2019-03-25 8:42 ` Daniel Vetter
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20190311174218.51899-1-noralf@tronnes.org \
--to=noralf@tronnes.org \
--cc=daniel.vetter@ffwll.ch \
--cc=darwish.07@gmail.com \
--cc=dri-devel@lists.freedesktop.org \
--cc=intel-gfx@lists.freedesktop.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).