[PATCH 0/2] drm/radeon: Sun XVR-300 support on sparc64

From: Imre Kaloz

Date: Sun Sep 27 2026 - 06:57:23 EST


These two patches get radeon KMS working on the Sun XVR-300, a
FireMV 2200 PCIe (RV370) board, in sparc64 hosts.

Patch 1 fixes an Oops that any posted radeon card on sparc64 hits in
igp_read_bios_from_vram(), which dereferences an ioremap() cookie to
check the VBIOS signature. It is tagged for stable.

Patch 2 adds a legacy connector table for the XVR-300, which has no
COMBIOS for the driver to parse, so both DVI-I outputs are found.
The XVR-300 needs both.

Tested on a Sun Ultra 45 with an XVR-300.

Imre Kaloz (2):
drm/radeon: Check the VBIOS signature after copying it from VRAM
drm/radeon: add a connector table for the Sun XVR-300

drivers/gpu/drm/radeon/radeon_bios.c | 10 +++--
drivers/gpu/drm/radeon/radeon_combios.c | 51 +++++++++++++++++++++++++
drivers/gpu/drm/radeon/radeon_mode.h | 3 +-
3 files changed, 59 insertions(+), 5 deletions(-)


base-commit: fe2ec83746e501645709761605c2464a44fd2929
--
2.47.3