linux/drivers/gpu
Maarten Lankhorst a196406a38 drm/xe: Fix DPT allocation paths.
Remove the fallback for VRAM to system memory, I tested it and that
doesn't work at all, only a black screen with pipe fault errors were
observed.

On systems with media GT, extra latency is added when accessing stolen
memory when the GT is in MC6. Since we additionally aren't counting how
much memory is used for stolen and we could in theory fill up the
entire stolen area with DPT's, avoid using stolen and only use the
default memory region.

Using stolen may also result in random system hangs under load.

Link: https://gitlab.freedesktop.org/drm/xe/kernel/-/work_items/7513
Fixes: 775d0adc01 ("drm/xe/fbdev: Limit the usage of stolen for LNL+")
Cc: <stable@vger.kernel.org> # v6.12+
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patch.msgid.link/20260630135523.1775379-2-dev@lankhorst.se
Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>
Acked-by: Matthew Brost <matthew.brost@intel.com> #teams
2026-07-14 15:27:47 +02:00
..
drm drm/xe: Fix DPT allocation paths. 2026-07-14 15:27:47 +02:00
host1x gpu: host1x: Fix iommu_map_sgtable() return value check 2026-05-28 17:19:30 +02:00
ipu-v3
nova-core drm-next for 7.2-rc1 2026-06-17 10:21:00 +01:00
tests
trace
vga fbdev: Wrap fbcon updates from vga-switcheroo in helper 2026-06-09 16:00:11 +02:00
buddy.c drm/buddy: Integrate lockdep annotations for gpu buddy manager 2026-05-08 19:16:19 +05:30
Kconfig
Makefile