From 0b88b264448fe043ba4dfb2acd7cd96961f0e053 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Fri, 29 Nov 2019 22:27:02 +0000
Subject: drm/i915/selftests: Keep engine awake during live_coherency
Git-commit: f9a863c2ffc17f72137fae8cac3314961dc6be24
Patch-mainline: v5.6-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322
Keep the engine awake and so avoid frequent cycling in and out of
powersaving mode to eliminate the unnecessary overhead and speed up the
testing.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Matthew Auld <matthew.auld@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20191129222702.1456292-1-chris@chris-wilson.co.uk
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
drivers/gpu/drm/i915/gem/selftests/i915_gem_coherency.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/i915/gem/selftests/i915_gem_coherency.c b/drivers/gpu/drm/i915/gem/selftests/i915_gem_coherency.c
index 9d3cd1af61f6..49edc51111d5 100644
--- a/drivers/gpu/drm/i915/gem/selftests/i915_gem_coherency.c
+++ b/drivers/gpu/drm/i915/gem/selftests/i915_gem_coherency.c
@@ -327,6 +327,7 @@ static int igt_gem_coherency(void *arg)
ctx.engine = random_engine(i915, &prng);
GEM_BUG_ON(!ctx.engine);
pr_info("%s: using %s\n", __func__, ctx.engine->name);
+ intel_engine_pm_get(ctx.engine);
for (over = igt_coherency_mode; over->name; over++) {
if (!over->set)
@@ -405,6 +406,7 @@ static int igt_gem_coherency(void *arg)
}
}
free:
+ intel_engine_pm_put(ctx.engine);
kfree(offsets);
return err;
--
2.28.0