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(parent: 338e2b1) | patch
drm/radeon/kms: catch atombios infinite loop and break out of it
authorJerome Glisse <jglisse@redhat.com>
Tue, 2 Mar 2010 19:37:52 +0000 (20:37 +0100)
committerDave Airlie <airlied@redhat.com>
Sun, 14 Mar 2010 23:35:45 +0000 (09:35 +1000)
commitc21b0fe6de3912f53087b4f3991942529f03eef6
treeeffd4e98793dbd06a85f558a843519b1bf35bf24tree | snapshot
parent338e2b1d571e4873908b199c90d6a31f65137fe3commit | diff
drm/radeon/kms: catch atombios infinite loop and break out of it

In somecase the atombios code might lead to infinite loop because
the GPU is in broken state, this patch track the jump history and
will abort atombios execution if we are stuck executing the same
jump for more than 1sec. Note that otherwise in some case we might
enter an infinite loop in the kernel context which is bad.

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
drivers/gpu/drm/radeon/atom.c diff | blob | history
drivers/gpu/drm/radeon/atom.h diff | blob | history
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