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authorUmesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>2020-07-09 23:45:03 +0100
committerJani Nikula <jani.nikula@intel.com>2020-07-14 20:31:05 +0300
commitaee62e02c48bd62b9b07f5e297ecfc9aaa964937 (patch)
tree306e8b64165dbc13295caab3add4bf8a09a13786
parent42de9b0a2bb29238d316bd56407c0e727d6d7ff9 (diff)
downloadlinux-davinci-aee62e02c48bd62b9b07f5e297ecfc9aaa964937.tar.gz
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: 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>
-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 25329b7600c958..014f34c047d57e 100644
--- a/drivers/gpu/drm/i915/i915_perf.c
+++ b/drivers/gpu/drm/i915/i915_perf.c
@@ -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++;