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| author | Jocelyn Falempe <jfalempe@redhat.com> | 2024-08-22 09:33:57 +0200 |
|---|---|---|
| committer | Jocelyn Falempe <jfalempe@redhat.com> | 2024-08-23 16:55:35 +0200 |
| commit | cb5164ac43d0fc37ac6b45cabbc4d244068289ef (patch) | |
| tree | e0bba38401b4345eca96fe74a56fe7868ccbdd02 /drivers/gpu/drm/Makefile | |
| parent | 8f4eca6ac52a72181b4f054d4ef6289a5d8cfa5d (diff) | |
| download | lwn-cb5164ac43d0fc37ac6b45cabbc4d244068289ef.tar.gz lwn-cb5164ac43d0fc37ac6b45cabbc4d244068289ef.zip | |
drm/panic: Add a QR code panic screen
This patch adds a new panic screen, with a QR code and the kmsg data
embedded.
If DRM_PANIC_SCREEN_QR_CODE_URL is set, then the kmsg data will be
compressed with zlib and encoded as a numerical segment, and appended
to the URL as a URL parameter. This allows to save space, and put
about ~7500 bytes of kmsg data, in a V40 QR code.
Linux distributions can customize the URL, and put a web frontend to
directly open a bug report with the kmsg data.
Otherwise the kmsg data will be encoded as a binary segment (ie raw
ascii) and only a maximum of 2953 bytes of kmsg data will be
available in the QR code.
You can also limit the QR code size with DRM_PANIC_SCREEN_QR_VERSION.
Signed-off-by: Jocelyn Falempe <jfalempe@redhat.com>
Reviewed-by: Alice Ryhl <aliceryhl@google.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240822073852.562286-5-jfalempe@redhat.com
Diffstat (limited to 'drivers/gpu/drm/Makefile')
| -rw-r--r-- | drivers/gpu/drm/Makefile | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/Makefile b/drivers/gpu/drm/Makefile index 68cc9258ffc4..c62339b89d46 100644 --- a/drivers/gpu/drm/Makefile +++ b/drivers/gpu/drm/Makefile @@ -89,6 +89,7 @@ drm-$(CONFIG_DRM_PRIVACY_SCREEN) += \ drm_privacy_screen_x86.o drm-$(CONFIG_DRM_ACCEL) += ../../accel/drm_accel.o drm-$(CONFIG_DRM_PANIC) += drm_panic.o +drm-$(CONFIG_DRM_PANIC_SCREEN_QR_CODE) += drm_panic_qr.o obj-$(CONFIG_DRM) += drm.o obj-$(CONFIG_DRM_PANEL_ORIENTATION_QUIRKS) += drm_panel_orientation_quirks.o |