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| author |   Jesse Barnes <jbarnes@virtuousgeek.org> | 2015-01-16 18:07:25 +0000 |
|---|---|---|
| committer |   Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-01-27 09:50:59 +0100 |
| commit | b6fef0ef126eb3f32fedab8a8840d8b65848d675 (patch) | |
| tree | 62334aa3a95328eef6cb7c7fc7a08ca15eb38197 /drivers/gpu/drm/i915/intel_pm.c | |
| parent | drm/i915/skl: Adding power domains for AUX controllers (diff) | |
| download | linux-dev-b6fef0ef126eb3f32fedab8a8840d8b65848d675.tar.xz linux-dev-b6fef0ef126eb3f32fedab8a8840d8b65848d675.zip | |
drm/i915/skl: add turbo support
Per latest PM programming guide.
v2: the wrong flavour of the function updating the ring frequency was
called, leading to dead locks (Tvrtko)
v3: Add GEN6_RP_MEDIA_IS_GFX to RP_CONTROL (Imre, done by Damien)
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
[danvet: Fixup conflicts with Mika's forcewake refactor.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Diffstat (limited to 'drivers/gpu/drm/i915/intel_pm.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_pm.c | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index acfa362b042d..b221105dc907 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -4024,9 +4024,37 @@ static void gen6_init_rps_frequencies(struct drm_device *dev) } } +/* See the Gen9_GT_PM_Programming_Guide doc for the below */ static void gen9_enable_rps(struct drm_device *dev) { struct drm_i915_private *dev_priv = dev->dev_private; + + intel_uncore_forcewake_get(dev_priv, FORCEWAKE_ALL); + + I915_WRITE(GEN6_RPNSWREQ, 0xc800000); + I915_WRITE(GEN6_RC_VIDEO_FREQ, 0xc800000); + + I915_WRITE(GEN6_RP_DOWN_TIMEOUT, 0xf4240); + I915_WRITE(GEN6_RP_INTERRUPT_LIMITS, 0x12060000); + I915_WRITE(GEN6_RP_UP_THRESHOLD, 0xe808); + I915_WRITE(GEN6_RP_DOWN_THRESHOLD, 0x3bd08); + I915_WRITE(GEN6_RP_UP_EI, 0x101d0); + I915_WRITE(GEN6_RP_DOWN_EI, 0x55730); + I915_WRITE(GEN6_RP_IDLE_HYSTERSIS, 0xa); + I915_WRITE(GEN6_PMINTRMSK, 0x6); + I915_WRITE(GEN6_RP_CONTROL, GEN6_RP_MEDIA_TURBO | + GEN6_RP_MEDIA_HW_MODE | GEN6_RP_MEDIA_IS_GFX | + GEN6_RP_ENABLE | GEN6_RP_UP_BUSY_AVG | + GEN6_RP_DOWN_IDLE_AVG); + + gen6_enable_rps_interrupts(dev); + + intel_uncore_forcewake_put(dev_priv, FORCEWAKE_ALL); +} + +static void gen9_enable_rc6(struct drm_device *dev) +{ + struct drm_i915_private *dev_priv = dev->dev_private; struct intel_engine_cs *ring; uint32_t rc6_mask = 0; int unused; @@ -5574,7 +5602,9 @@ static void intel_gen6_powersave_work(struct work_struct *work) } else if (IS_VALLEYVIEW(dev)) { valleyview_enable_rps(dev); } else if (INTEL_INFO(dev)->gen >= 9) { + gen9_enable_rc6(dev); gen9_enable_rps(dev); + __gen6_update_ring_freq(dev); } else if (IS_BROADWELL(dev)) { gen8_enable_rps(dev); __gen6_update_ring_freq(dev); |