On Wed, Jul 3, 2024 at 5:44 PM Jocelyn Falempe <jfalempe@xxxxxxxxxx> wrote: > > This series adds a new panic screen, with the kmsg data embedded in a QR-code. > > The main advantage of QR-code, is that you can copy/paste the debug data to a bug report. > > The QR-code encoder is written in rust, and is very specific to drm_panic. > The reason is that it is called in a panic handler, and thus can't allocate memory, or use locking. > The rust code uses a few rust core API, and provides only two C entry points. > There is no particular reason to do it in rust, I just wanted to learn rust, and see if it can work in the kernel. > > If you want to see what it looks like, I've put a few screenshots here: > https://github.com/kdj0c/panic_report/issues/1 > > -- > > Jocelyn > > > Jocelyn Falempe (4): > drm/panic: Add integer scaling to blit() > drm/rect: add drm_rect_overlap() > drm/panic: simplify logo handling > drm/panic: Add a qr_code panic screen > > drivers/gpu/drm/Kconfig | 29 + > drivers/gpu/drm/Makefile | 1 + > drivers/gpu/drm/drm_drv.c | 3 + > drivers/gpu/drm/drm_panic.c | 338 +++++++++-- > drivers/gpu/drm/drm_panic_qr.rs | 989 ++++++++++++++++++++++++++++++++ > include/drm/drm_panic.h | 4 + > include/drm/drm_rect.h | 15 + > 7 files changed, 1340 insertions(+), 39 deletions(-) > create mode 100644 drivers/gpu/drm/drm_panic_qr.rs > > > base-commit: 3f5ea7ed705e8effe9cfabf912e769ccb6b7d389 I tried to apply this patch, but I can't find this commit, nor could I find any tag that it applies on. Alice
