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authorUmesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>2020-07-09 23:45:03 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2020-07-22 09:34:29 +0200
commitb3944d5248c6be0f2dc95a231822c6c67d6f6fd9 (patch)
treeea22ca16113d84b28cbc457752546bb2dbb4c5b7
parent1b751c786612b948a47c0a8b78ca4021c3186ed8 (diff)
drm/i915/perf: Use GTT when saving/restoring engine GPR
commit aee62e02c48bd62b9b07f5e297ecfc9aaa964937 upstream. MI_STORE_REGISTER_MEM and MI_LOAD_REGISTER_MEM need to know which translation to use when saving restoring the engine general purpose registers to and from the GT scratch. Since GT scratch is mapped to ggtt, we need to set an additional bit in the command to use GTT. Fixes: daed3e44396d17 ("drm/i915/perf: implement active wait for noa configurations") Suggested-by: Prathap Kumar Valsan <prathap.kumar.valsan@intel.com> Signed-off-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com> Reviewed-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk> Link: https://patchwork.freedesktop.org/patch/msgid/20200709224504.11345-1-chris@chris-wilson.co.uk Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> (cherry picked from commit e43ff99c8deda85234e6233e0f4af6cb09566a37) Signed-off-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-rw-r--r--drivers/gpu/drm/i915/i915_perf.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c
index cf2c01f17da8..803983d9a05d 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -1645,6 +1645,7 @@ static u32 *save_restore_register(struct i915_perf_stream *stream, u32 *cs,
u32 d;
cmd = save ? MI_STORE_REGISTER_MEM : MI_LOAD_REGISTER_MEM;
+ cmd |= MI_SRM_LRM_GLOBAL_GTT;
if (INTEL_GEN(stream->perf->i915) >= 8)
cmd++;