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: 57+ 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
2019-03-12 9:09 ` ✗ Fi.CI.CHECKPATCH: warning for " Patchwork
2019-03-12 9:12 ` ✗ Fi.CI.SPARSE: " Patchwork
2019-03-12 9:50 ` ✓ Fi.CI.BAT: success " Patchwork
2019-03-12 10:12 ` ✗ Fi.CI.BAT: failure for drm: Add panic handling (rev2) Patchwork
2019-03-17 23:06 ` [PATCH v2 0/3] drm: Add panic handling 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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.