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drm/i915/perf: Use GTT when saving/restoring engine GPR 

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: daed3e4439 ("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 e43ff99c8d)
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Umesh Nerlige Ramappa 2020-07-09 23:45:03 +01:00 committed by Jani Nikula
parent 42de9b0a2b
commit aee62e02c4
1 changed files with 1 additions and 0 deletions
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1
drivers/gpu/drm/i915/i915_perf.c
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@ -1592,6 +1592,7 @@ 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++;