tree a3e15eabffd6e10bed1ef639fc2f2e087c67b047
parent 62cdc0c20663ef840a94850892517b2b7f584904
author Jerome Glisse <jglisse@redhat.com> 1262864361 +0100
committer Dave Airlie <airlied@redhat.com> 1262920199 +1000

drm/radeon/kms: Schedule host path read cache flush through the ring V2

R300 family will hard lockup if host path read cache flush is
done through MMIO to HOST_PATH_CNTL. But scheduling same flush
through ring seems harmless. This patch remove the hdp_flush
callback and add a flush after each fence emission which means
a flush after each IB schedule. Thus we should have same behavior
without the hard lockup.

Tested on R100,R200,R300,R400,R500,R600,R700 family.

V2: Adjust fence counts in r600_blit_prepare_copy()

Signed-off-by: Jerome Glisse <jglisse@redhat.com>
Reviewed-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>