The uncached mmio is sufficient to queue the mmio writes without raising forcewake. The forced flush along with acquiring forcewake from the posting read is not required for adjusting the RPS frequency.
Signed-off-by: Chris Wilson <[email protected]> --- drivers/gpu/drm/i915/intel_pm.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index bde7ef3c643e..4e9488bd9c3c 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -4944,8 +4944,6 @@ static int gen6_set_rps(struct drm_i915_private *dev_priv, u8 val) I915_WRITE(GEN6_RP_INTERRUPT_LIMITS, intel_rps_limits(dev_priv, val)); I915_WRITE(GEN6_PMINTRMSK, gen6_rps_pm_mask(dev_priv, val)); - POSTING_READ(GEN6_RPNSWREQ); - dev_priv->rps.cur_freq = val; trace_intel_gpu_freq_change(intel_gpu_freq(dev_priv, val)); -- 2.11.0 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
