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| author | Damien Lespiau <damien.lespiau@intel.com> | 2015-02-09 19:33:18 +0000 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2015-02-13 23:28:35 +0100 |
| commit | 8bc0ccf6b1f0c0c6eef8301cb2a5b743a01635db (patch) | |
| tree | e3f2400e5728667c4acfeac58fca4ef5932c5a45 /drivers/gpu/drm/i915/intel_pm.c | |
| parent | 9370cd987e91d6d652ebe6d883fbc51b10df2403 (diff) | |
| download | lwn-8bc0ccf6b1f0c0c6eef8301cb2a5b743a01635db.tar.gz lwn-8bc0ccf6b1f0c0c6eef8301cb2a5b743a01635db.zip | |
drm/i915/skl: Implement WaDisableLSQCROPERFforOCL
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
Reviewed-by: Nick Hoath <nicholas.hoath@intel.com>
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 | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index af8dca28c505..d7750176091b 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -65,6 +65,11 @@ static void skl_init_clock_gating(struct drm_device *dev) GEN8_GAPSUNIT_CLOCK_GATE_DISABLE | GEN8_SDEUNIT_CLOCK_GATE_DISABLE); } + + if (INTEL_REVID(dev) <= SKL_REVID_E0) + /* WaDisableLSQCROPERFforOCL:skl */ + I915_WRITE(GEN8_L3SQCREG4, I915_READ(GEN8_L3SQCREG4) | + GEN8_LQSC_RO_PERF_DIS); } static void i915_pineview_get_mem_freq(struct drm_device *dev) |