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drm/i915/dc3co: Do the full calculation of DC3CO exit only once

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This will calculaet the DC3CO exit delay only once per full modeset.

Cc: Imre Deak <imre.deak@intel.com>
Cc: Anshuman Gupta <anshuman.gupta@intel.com>
Reviewed-by: Anshuman Gupta <anshuman.gupta@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200122182617.18597-1-jose.souza@intel.com
This commit is contained in:
José Roberto de Souza 2020-01-22 10:26:16 -08:00
parent de409661c4
commit 58c34c4ca3
1 changed files with 4 additions and 6 deletions
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10
drivers/gpu/drm/i915/display/intel_psr.c
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@ -802,8 +802,10 @@ static void intel_psr_enable_locked(struct drm_i915_private *dev_priv,
dev_priv->psr.busy_frontbuffer_bits = 0;
dev_priv->psr.pipe = to_intel_crtc(crtc_state->uapi.crtc)->pipe;
dev_priv->psr.dc3co_enabled = !!crtc_state->dc3co_exitline;
dev_priv->psr.dc3co_exit_delay = intel_get_frame_time_us(crtc_state);
dev_priv->psr.transcoder = crtc_state->cpu_transcoder;
/* DC5/DC6 requires at least 6 idle frames */
val = usecs_to_jiffies(intel_get_frame_time_us(crtc_state) * 6);
dev_priv->psr.dc3co_exit_delay = val;
/*
* If a PSR error happened and the driver is reloaded, the EDP_PSR_IIR
@ -1277,8 +1279,6 @@ static void
tgl_dc3co_flush(struct drm_i915_private *dev_priv,
unsigned int frontbuffer_bits, enum fb_op_origin origin)
{
u32 delay;
mutex_lock(&dev_priv->psr.lock);
if (!dev_priv->psr.dc3co_enabled)
@ -1296,10 +1296,8 @@ tgl_dc3co_flush(struct drm_i915_private *dev_priv,
goto unlock;
tgl_psr2_enable_dc3co(dev_priv);
/* DC5/DC6 required idle frames = 6 */
delay = 6 * dev_priv->psr.dc3co_exit_delay;
mod_delayed_work(system_wq, &dev_priv->psr.idle_work,
usecs_to_jiffies(delay));
dev_priv->psr.dc3co_exit_delay);
unlock:
mutex_unlock(&dev_priv->psr.lock);