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| author |   Lionel Landwerlin <lionel.g.landwerlin@intel.com> | 2017-08-03 17:58:10 +0100 |
|---|---|---|
| committer | Lionel Landwerlin <lionel.g.landwerlin@intel.com> | 2017-08-03 18:19:10 +0100 |
| commit | 28964cf25ee67e1128f7fbb7da3a792471adf47e (patch) | |
| tree | 5309a030a7cf05a702e3854dca60894e1c1006c1 /drivers/gpu/drm/i915/i915_perf.c | |
| parent | drm/i915/perf: leave GDT_CHICKEN_BITS programming in configs (diff) | |
| download | linux-dev-28964cf25ee67e1128f7fbb7da3a792471adf47e.tar.xz linux-dev-28964cf25ee67e1128f7fbb7da3a792471adf47e.zip | |
drm/i915/perf: disable NOA logic when not used
We already do it on Haswell and the documentation says it saves power.
Signed-off-by: Lionel Landwerlin <lionel.g.landwerlin@intel.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170803165812.2373-5-lionel.g.landwerlin@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/i915_perf.c')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_perf.c | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_perf.c b/drivers/gpu/drm/i915/i915_perf.c index f1993bbfd4fa..06a5e1e83e6c 100644 --- a/drivers/gpu/drm/i915/i915_perf.c +++ b/drivers/gpu/drm/i915/i915_perf.c @@ -1827,6 +1827,10 @@ static void gen8_disable_metric_set(struct drm_i915_private *dev_priv) { /* Reset all contexts' slices/subslices configurations. */ gen8_configure_all_contexts(dev_priv, NULL, false); + + I915_WRITE(GDT_CHICKEN_BITS, (I915_READ(GDT_CHICKEN_BITS) & + ~GT_NOA_ENABLE)); + } static void gen7_oa_enable(struct drm_i915_private *dev_priv) |