[Intel-gfx] [PATCH v3 17/17] drm/i915/psr: Use new DP VSC SDP compute routine on PSR
Shankar, Uma
uma.shankar at intel.com
Wed Feb 5 17:15:09 UTC 2020
> -----Original Message-----
> From: Intel-gfx <intel-gfx-bounces at lists.freedesktop.org> On Behalf Of Gwan-
> gyeong Mun
> Sent: Tuesday, February 4, 2020 4:50 AM
> To: intel-gfx at lists.freedesktop.org
> Cc: linux-fbdev at vger.kernel.org; dri-devel at lists.freedesktop.org
> Subject: [Intel-gfx] [PATCH v3 17/17] drm/i915/psr: Use new DP VSC SDP compute
> routine on PSR
>
> In order to use a common VSC SDP Colorimetry calculating code on PSR, it uses a
> new psr vsc sdp compute routine.
> Because PSR routine has its own scenario and timings of writing a VSC SDP, the
> current PSR routine needs to have its own drm_dp_vsc_sdp structure member
> variable on struct i915_psr.
>
> In order to calculate colorimetry information, intel_psr_update() function and
> intel_psr_enable() function extend a drm_connector_state argument.
>
> There are no changes to PSR mechanism.
>
> v3: Replace a structure name to drm_dp_vsc_sdp from intel_dp_vsc_sdp
Looks good.
Reviewed-by: Uma Shankar <uma.shankar at intel.com>
Note: Please rebase, fix the comments and resend to trigger a full CI run.
> Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun at intel.com>
> ---
> drivers/gpu/drm/i915/display/intel_ddi.c | 4 +-
> drivers/gpu/drm/i915/display/intel_psr.c | 54 +++++++-----------------
> drivers/gpu/drm/i915/display/intel_psr.h | 6 ++-
> drivers/gpu/drm/i915/i915_drv.h | 1 +
> 4 files changed, 22 insertions(+), 43 deletions(-)
>
> diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c
> b/drivers/gpu/drm/i915/display/intel_ddi.c
> index 8509cd33569e..00b46c45f6a8 100644
> --- a/drivers/gpu/drm/i915/display/intel_ddi.c
> +++ b/drivers/gpu/drm/i915/display/intel_ddi.c
> @@ -3901,7 +3901,7 @@ static void intel_enable_ddi_dp(struct intel_encoder
> *encoder,
> intel_dp_stop_link_train(intel_dp);
>
> intel_edp_backlight_on(crtc_state, conn_state);
> - intel_psr_enable(intel_dp, crtc_state);
> + intel_psr_enable(intel_dp, crtc_state, conn_state);
> intel_dp_set_infoframes(encoder, true, crtc_state, conn_state);
> intel_edp_drrs_enable(intel_dp, crtc_state);
>
> @@ -4063,7 +4063,7 @@ static void intel_ddi_update_pipe_dp(struct intel_encoder
> *encoder,
>
> intel_ddi_set_dp_msa(crtc_state, conn_state);
>
> - intel_psr_update(intel_dp, crtc_state);
> + intel_psr_update(intel_dp, crtc_state, conn_state);
> intel_dp_set_infoframes(encoder, true, crtc_state, conn_state);
> intel_edp_drrs_enable(intel_dp, crtc_state);
>
> diff --git a/drivers/gpu/drm/i915/display/intel_psr.c
> b/drivers/gpu/drm/i915/display/intel_psr.c
> index e41ed962aa80..a4564607b6c5 100644
> --- a/drivers/gpu/drm/i915/display/intel_psr.c
> +++ b/drivers/gpu/drm/i915/display/intel_psr.c
> @@ -330,39 +330,6 @@ void intel_psr_init_dpcd(struct intel_dp *intel_dp)
> }
> }
>
> -static void intel_psr_setup_vsc(struct intel_dp *intel_dp,
> - const struct intel_crtc_state *crtc_state)
> -{
> - struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp);
> - struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
> - struct dp_sdp psr_vsc;
> -
> - if (dev_priv->psr.psr2_enabled) {
> - /* Prepare VSC Header for SU as per EDP 1.4 spec, Table 6.11 */
> - memset(&psr_vsc, 0, sizeof(psr_vsc));
> - psr_vsc.sdp_header.HB0 = 0;
> - psr_vsc.sdp_header.HB1 = 0x7;
> - if (dev_priv->psr.colorimetry_support) {
> - psr_vsc.sdp_header.HB2 = 0x5;
> - psr_vsc.sdp_header.HB3 = 0x13;
> - } else {
> - psr_vsc.sdp_header.HB2 = 0x4;
> - psr_vsc.sdp_header.HB3 = 0xe;
> - }
> - } else {
> - /* Prepare VSC packet as per EDP 1.3 spec, Table 3.10 */
> - memset(&psr_vsc, 0, sizeof(psr_vsc));
> - psr_vsc.sdp_header.HB0 = 0;
> - psr_vsc.sdp_header.HB1 = 0x7;
> - psr_vsc.sdp_header.HB2 = 0x2;
> - psr_vsc.sdp_header.HB3 = 0x8;
> - }
> -
> - intel_dig_port->write_infoframe(&intel_dig_port->base,
> - crtc_state,
> - DP_SDP_VSC, &psr_vsc, sizeof(psr_vsc));
> -}
> -
> static void hsw_psr_setup_aux(struct intel_dp *intel_dp) {
> struct drm_i915_private *dev_priv = dp_to_i915(intel_dp); @@ -841,9
> +808,12 @@ static void intel_psr_enable_source(struct intel_dp *intel_dp, }
>
> static void intel_psr_enable_locked(struct drm_i915_private *dev_priv,
> - const struct intel_crtc_state *crtc_state)
> + const struct intel_crtc_state *crtc_state,
> + const struct drm_connector_state *conn_state)
> {
> struct intel_dp *intel_dp = dev_priv->psr.dp;
> + struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp);
> + struct intel_encoder *encoder = &intel_dig_port->base;
> u32 val;
>
> WARN_ON(dev_priv->psr.enabled);
> @@ -881,7 +851,9 @@ static void intel_psr_enable_locked(struct drm_i915_private
> *dev_priv,
>
> DRM_DEBUG_KMS("Enabling PSR%s\n",
> dev_priv->psr.psr2_enabled ? "2" : "1");
> - intel_psr_setup_vsc(intel_dp, crtc_state);
> + intel_dp_compute_psr_vsc_sdp(intel_dp, crtc_state, conn_state,
> + &dev_priv->psr.vsc);
> + intel_write_dp_vsc_sdp(encoder, crtc_state, &dev_priv->psr.vsc);
> intel_psr_enable_sink(intel_dp);
> intel_psr_enable_source(intel_dp, crtc_state);
> dev_priv->psr.enabled = true;
> @@ -893,11 +865,13 @@ static void intel_psr_enable_locked(struct
> drm_i915_private *dev_priv,
> * intel_psr_enable - Enable PSR
> * @intel_dp: Intel DP
> * @crtc_state: new CRTC state
> + * @conn_state: new CONNECTOR state
> *
> * This function can only be called after the pipe is fully trained and enabled.
> */
> void intel_psr_enable(struct intel_dp *intel_dp,
> - const struct intel_crtc_state *crtc_state)
> + const struct intel_crtc_state *crtc_state,
> + const struct drm_connector_state *conn_state)
> {
> struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
>
> @@ -916,7 +890,7 @@ void intel_psr_enable(struct intel_dp *intel_dp,
> goto unlock;
> }
>
> - intel_psr_enable_locked(dev_priv, crtc_state);
> + intel_psr_enable_locked(dev_priv, crtc_state, conn_state);
>
> unlock:
> mutex_unlock(&dev_priv->psr.lock);
> @@ -1049,13 +1023,15 @@ static void psr_force_hw_tracking_exit(struct
> drm_i915_private *dev_priv)
> * intel_psr_update - Update PSR state
> * @intel_dp: Intel DP
> * @crtc_state: new CRTC state
> + * @conn_state: new CONNECTOR state
> *
> * This functions will update PSR states, disabling, enabling or switching PSR
> * version when executing fastsets. For full modeset, intel_psr_disable() and
> * intel_psr_enable() should be called instead.
> */
> void intel_psr_update(struct intel_dp *intel_dp,
> - const struct intel_crtc_state *crtc_state)
> + const struct intel_crtc_state *crtc_state,
> + const struct drm_connector_state *conn_state)
> {
> struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
> struct i915_psr *psr = &dev_priv->psr; @@ -1090,7 +1066,7 @@ void
> intel_psr_update(struct intel_dp *intel_dp,
> intel_psr_disable_locked(intel_dp);
>
> if (enable)
> - intel_psr_enable_locked(dev_priv, crtc_state);
> + intel_psr_enable_locked(dev_priv, crtc_state, conn_state);
>
> unlock:
> mutex_unlock(&dev_priv->psr.lock);
> diff --git a/drivers/gpu/drm/i915/display/intel_psr.h
> b/drivers/gpu/drm/i915/display/intel_psr.h
> index c58a1d438808..a003fb18105a 100644
> --- a/drivers/gpu/drm/i915/display/intel_psr.h
> +++ b/drivers/gpu/drm/i915/display/intel_psr.h
> @@ -17,11 +17,13 @@ struct intel_dp;
> #define CAN_PSR(dev_priv) (HAS_PSR(dev_priv) && dev_priv->psr.sink_support)
> void intel_psr_init_dpcd(struct intel_dp *intel_dp); void intel_psr_enable(struct
> intel_dp *intel_dp,
> - const struct intel_crtc_state *crtc_state);
> + const struct intel_crtc_state *crtc_state,
> + const struct drm_connector_state *conn_state);
> void intel_psr_disable(struct intel_dp *intel_dp,
> const struct intel_crtc_state *old_crtc_state); void
> intel_psr_update(struct intel_dp *intel_dp,
> - const struct intel_crtc_state *crtc_state);
> + const struct intel_crtc_state *crtc_state,
> + const struct drm_connector_state *conn_state);
> int intel_psr_debug_set(struct drm_i915_private *dev_priv, u64 value); void
> intel_psr_invalidate(struct drm_i915_private *dev_priv,
> unsigned frontbuffer_bits,
> diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
> index a8a08c63278e..fa2f1a18ffe0 100644
> --- a/drivers/gpu/drm/i915/i915_drv.h
> +++ b/drivers/gpu/drm/i915/i915_drv.h
> @@ -504,6 +504,7 @@ struct i915_psr {
> u32 dc3co_exit_delay;
> struct delayed_work idle_work;
> bool initially_probed;
> + struct drm_dp_vsc_sdp vsc;
> };
>
> #define QUIRK_LVDS_SSC_DISABLE (1<<1)
> --
> 2.24.1
>
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