kernel/git/stable/linux-stable.git/drivers/gpu/drm/xe, branch masterUnnamed repository; edit this file 'description' to name the repository.http://git-test.landau.one/pub/scm/linux/kernel/git/stable/linux-stable.git/atom/drivers/gpu/drm/xe?h=master2026-09-28T14:19:35Zdrm/xe/pf: Keep VF LMEM BAR size low if no VFs enabled2026-09-28T14:19:35ZMarcin Bernatowiczmarcin.bernatowicz@linux.intel.com2026-09-18T11:01:30Zurn:sha1:72207463f7a4a6818a88f4ef57802b42da534301
When VFs are enabled on dGFX the driver resizes the PF VF_LMEM_BAR to
fit the requested layout. After VFs are disabled the PF VF BAR
size is left as-is. On platforms with tight MMIO apertures a
subsequent unplug/rescan followed by another enable may fail with:
"VF BAR …: can't assign; no space"
because the PCI core reserves address space based on the (now large) VF
template, often multiplied by totalvfs.
Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/5937
Fixes: 94eae6ee4c2d ("drm/xe/pf: Set VF LMEM BAR size")
Signed-off-by: Marcin Bernatowicz <marcin.bernatowicz@linux.intel.com>
Cc: Michał Wajdeczko <michal.wajdeczko@intel.com>
Cc: Michał Winiarski <michal.winiarski@intel.com>
Reviewed-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://patch.msgid.link/20260918110130.700332-1-marcin.bernatowicz@linux.intel.com
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
(cherry picked from commit 0646547a67d25c407f5a4ac71b4eefe8b941202b)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
drm/xe/pf: Refactor VF LMEM BAR resize helper function2026-09-28T14:19:35ZMichal Wajdeczkomichal.wajdeczko@intel.com2026-09-11T18:23:06Zurn:sha1:74dae5f33c0c64d3ca12710bfd845721d73fe2e5
Improve and move diagnostics messages to the helper function to
keep the caller function tidy.
Signed-off-by: Michal Wajdeczko <michal.wajdeczko@intel.com>
Reviewed-by: Michał Winiarski <michal.winiarski@intel.com>
Link: https://patch.msgid.link/20260911182306.14973-1-michal.wajdeczko@intel.com
(cherry picked from commit 10628c52a3732a10426499a3d462cc2e6bc371ae)
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Merge tag 'drm-misc-fixes-2026-09-24' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes2026-09-25T21:58:24ZDave Airlieairlied@redhat.com2026-09-25T21:57:59Zurn:sha1:a9ed3aa9b87ee41e8ab3ff471b1331c154767e45
A number of fixes:
- bridge:
- samsung-dsim: fix GPIO lifetime
- client: Null pointer dereference fix
- imagination: error handling fix, page handling fix
- nouveau: fix reference leaks, double-frees, out-of-bounds accesses,
use-after-frees, don't reject config without SCDC, a number of
workarounds
- virtio: fix memory leak, reference leaks, null pointer dereference,
add pixel blend mode, cache coherency fix
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <self@mripard.dev>
Link: https://patch.msgid.link/arU22zzqUGDEco1y@houat