drm/xe: Ban a VM if rebind worker hits an error

Browse source

We cannot recover a VM if a rebind worker hits an error, ban the VM if
happens to ensure we do not attempt to place this VM on the hardware
again.

A follow up will inform the user if this happens.

v2: Return -ECANCELED in exec VM closed or banned, check for closed or
banned within VM lock.
v3: Fix lockdep splat by looking engine outside of vm->lock
v4: Fix error path when engine lookup fails
v5: Add debug message in rebind worker on error, update comments wrt
locking, add xe_vm_close helper

Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>

...

This commit is contained in:

Matthew Brost 2023-06-22 12:39:48 -07:00 • committed by Rodrigo Vivi

parent 54c9fb7e64

commit 9d858b69b0

7 changed files with 107 additions and 46 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

13

drivers/gpu/drm/xe/xe_engine.c

View file

6

drivers/gpu/drm/xe/xe_exec.c

View file

5

drivers/gpu/drm/xe/xe_trace.h

View file

104

drivers/gpu/drm/xe/xe_vm.c

View file

13

drivers/gpu/drm/xe/xe_vm.h

View file

2

drivers/gpu/drm/xe/xe_vm_madvise.c

View file

10

drivers/gpu/drm/xe/xe_vm_types.h

View file