Hello, This is a collection of fixes for bugs found while chasing an unrecoverable fault leading to a device unplug (because of some other bugs that was introduced in my local dev branch). The first patch makes sure we immediately reset the GPU on an unrecoverable fault, and following patches are fixing various NULL/invalid pointer derefs caused by use-after-free situations following a device unplug. Regards, Boris Boris Brezillon (4): drm/panthor: Force an immediate reset on unrecoverable faults drm/panthor: Keep a ref to the VM at the panthor_kernel_bo level drm/panthor: Reset the FW VM to NULL on unplug drm/panthor: Call panthor_sched_post_reset() even if the reset failed drivers/gpu/drm/panthor/panthor_device.c | 8 ++--- drivers/gpu/drm/panthor/panthor_device.h | 1 + drivers/gpu/drm/panthor/panthor_fw.c | 5 +-- drivers/gpu/drm/panthor/panthor_gem.c | 8 +++-- drivers/gpu/drm/panthor/panthor_gem.h | 8 +++-- drivers/gpu/drm/panthor/panthor_heap.c | 8 ++--- drivers/gpu/drm/panthor/panthor_sched.c | 40 +++++++++++++++++------- drivers/gpu/drm/panthor/panthor_sched.h | 2 +- 8 files changed, 51 insertions(+), 29 deletions(-) -- 2.44.0
