[PATCH 0/2] Add vm_bind param check to ensure no overlap with kbo AS carveout
From: Adrián Larumbe
Date: Tue Jun 16 2026 - 10:49:51 EST
Just a quick check to make sure user-supplied vm_bind regions aren't
clashing with the region reserved for kernel bo's.
I tried to introduce a similar check for panthor_vm_alloc_va(), to throw
back an error when mappings of kernel bo's against specific addresses fall
within the auto_va region. However that is not possible, since there's one
FW region that must be mapped right at CSF_MCU_SHARED_REGION_START. That
is usually not a problem, since drm_mm_insert_node_in_range() will pick
the next one available.
Signed-off-by: Adrián Larumbe <adrian.larumbe@xxxxxxxxxxxxx>
---
Adrián Larumbe (2):
drm/panthor: Add vm_bind region with kbo range intersection check
drm/panthor: Fix comment to reflect actual struct field name
drivers/gpu/drm/panthor/panthor_mmu.c | 35 ++++++++++++++++++++++++++++++++++-
1 file changed, 34 insertions(+), 1 deletion(-)
---
base-commit: 2afdfc658f7a7e9ee2a67ec6663922da9c799c53
change-id: 20260614-vm_bind_checks-46075ba069a0
Best regards,
--
Adrián Larumbe <adrian.larumbe@xxxxxxxxxxxxx>