From 598c6cfe06900505ae16a355599e9f08432f4d7a Mon Sep 17 00:00:00 2001 From: Dhinakaran Pandiyan Date: Thu, 27 Sep 2018 23:11:17 -0700 Subject: [PATCH] drm/i915/psr: Enable PSR1 on gen-9+ HW MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit We have new tests and fixes in place since the feature was last disabled. Try again for gen-9+ hardware and enable only PSR1 by default as a first step. v2: Remove typo fix and comment improvements (Rodrigo) Cc: Jani Nikula Cc: Jose Roberto de Souza Cc: Paulo Zanoni Cc: Rodrigo Vivi Cc: Ville Syrjälä References: commit 2ee7dc497e34 ("drm/i915: disable PSR by default on HSW/BDW") References: commit dcb2e993f3c0 ("Revert "drm/i915: Enable PSR by default on Valleyview and Cherryview."") Signed-off-by: Dhinakaran Pandiyan Reviewed-by: Rodrigo Vivi Reviewed-by: José Roberto de Souza Tested-by: José Roberto de Souza Link: https://patchwork.freedesktop.org/patch/msgid/20180928061117.12394-1-dhinakaran.pandiyan@intel.com --- drivers/gpu/drm/i915/intel_psr.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_psr.c b/drivers/gpu/drm/i915/intel_psr.c index 11fdefaf7728..83528647b40b 100644 --- a/drivers/gpu/drm/i915/intel_psr.c +++ b/drivers/gpu/drm/i915/intel_psr.c @@ -71,6 +71,10 @@ static bool psr_global_enabled(u32 debug) static bool intel_psr2_enabled(struct drm_i915_private *dev_priv, const struct intel_crtc_state *crtc_state) { + /* Disable PSR2 by default for all platforms */ + if (i915_modparams.enable_psr == -1) + return false; + switch (dev_priv->psr.debug & I915_PSR_DEBUG_MODE_MASK) { case I915_PSR_DEBUG_FORCE_PSR1: return false; @@ -1066,12 +1070,9 @@ void intel_psr_init(struct drm_i915_private *dev_priv) if (!dev_priv->psr.sink_support) return; - if (i915_modparams.enable_psr == -1) { - i915_modparams.enable_psr = dev_priv->vbt.psr.enable; - - /* Per platform default: all disabled. */ - i915_modparams.enable_psr = 0; - } + if (i915_modparams.enable_psr == -1) + if (INTEL_GEN(dev_priv) < 9 || !dev_priv->vbt.psr.enable) + i915_modparams.enable_psr = 0; /* Set link_standby x link_off defaults */ if (IS_HASWELL(dev_priv) || IS_BROADWELL(dev_priv))