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| author | Chris Wilson <chris@chris-wilson.co.uk> | 2018-09-20 17:13:43 +0100 |
|---|---|---|
| committer | Chris Wilson <chris@chris-wilson.co.uk> | 2018-09-20 20:43:30 +0100 |
| commit | 8e1cb32d515bc6b691782104b00d9056a33127c8 (patch) | |
| tree | 0d7dba3c27226a43cbb006d9db8fa795c4eb86da /drivers/gpu/drm/i915/i915_gem.c | |
| parent | b8bdd9cc6049fe8d96178001da84ac98e697a5ba (diff) | |
| download | linux-stable-8e1cb32d515bc6b691782104b00d9056a33127c8.tar.gz linux-stable-8e1cb32d515bc6b691782104b00d9056a33127c8.tar.bz2 linux-stable-8e1cb32d515bc6b691782104b00d9056a33127c8.zip | |
drm/i915: Park the GPU on module load
Once we have flushed the first request through the system to both load a
context and record the default state; tell the GPU to park and idle
itself, putting itself immediately (hopefully at least) into a
powersaving state, and allowing ourselves to start from known state
after setting up all our bookkeeping.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20180920161343.1117-1-chris@chris-wilson.co.uk
Diffstat (limited to 'drivers/gpu/drm/i915/i915_gem.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_gem.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c index b79362bbd97b..db9688d14912 100644 --- a/drivers/gpu/drm/i915/i915_gem.c +++ b/drivers/gpu/drm/i915/i915_gem.c @@ -5419,6 +5419,14 @@ static int __intel_engines_record_defaults(struct drm_i915_private *i915) assert_kernel_context_is_current(i915); + /* + * Immediately park the GPU so that we enable powersaving and + * treat it as idle. The next time we issue a request, we will + * unpark and start using the engine->pinned_default_state, otherwise + * it is in limbo and an early reset may fail. + */ + __i915_gem_park(i915); + for_each_engine(engine, i915, id) { struct i915_vma *state; void *vaddr; |