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    <p>Typo in the Subject: s/daptive/adaptive/</p>
    <p><br>
    </p>
    <div class="moz-cite-prefix">On 11/23/2023 7:32 PM, Mitul Golani
      wrote:<br>
    </div>
    <blockquote type="cite" cite="mid:20231123140244.4183869-4-mitulkumar.ajitkumar.golani@intel.com">
      <pre class="moz-quote-pre" wrap="">Add necessary functions and register definitions to enable
and compute AS SDP data. The new `intel_dp_compute_as_sdp`
function computes AS SDP values based on the display
configuration, ensuring proper handling of Variable Refresh
Rate (VRR).

Signed-off-by: Mitul Golani <a class="moz-txt-link-rfc2396E" href="mailto:mitulkumar.ajitkumar.golani@intel.com"><mitulkumar.ajitkumar.golani@intel.com></a>
---
 drivers/gpu/drm/i915/display/intel_dp.c   | 21 +++++++++++++++++++++
 drivers/gpu/drm/i915/display/intel_hdmi.c | 11 +++++++++--
 drivers/gpu/drm/i915/i915_reg.h           |  6 ++++++
 3 files changed, 36 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 39624746d612..b3eb2d342a99 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -2629,6 +2629,26 @@ static void intel_dp_compute_vsc_sdp(struct intel_dp *intel_dp,
                                         &crtc_state->infoframes.vsc);
 }
 
+static void intel_dp_compute_as_sdp(struct intel_dp *intel_dp,
+                                   struct intel_crtc_state *crtc_state,
+                                    const struct drm_connector_state *conn_state)
+{
+       struct drm_dp_as_sdp *async = &crtc_state->infoframes.async;
+       struct intel_connector *connector = intel_dp->attached_connector;
+       int vrefresh = drm_mode_vrefresh(&crtc_state->hw.adjusted_mode);
+
+       if (intel_vrr_is_in_range(connector, vrefresh))
+               return;
+
+       crtc_state->infoframes.enable |= intel_hdmi_infoframe_enable(DP_SDP_ADAPTIVE_SYNC);</pre>
    </blockquote>
    <p>To make this work, need to add DP_SDP_ADAPTIVE_SYNC to
      infoframe_type_to_idx().</p>
    <p><br>
    </p>
    <blockquote type="cite" cite="mid:20231123140244.4183869-4-mitulkumar.ajitkumar.golani@intel.com">
      <pre class="moz-quote-pre" wrap="">
+       async->sdp_type = DP_SDP_ADAPTIVE_SYNC;
+       async->length = 0x9;
+       async->vmin = crtc_state->vrr.vmin;
+       async->vmax = crtc_state->vrr.vmax;
+       async->target_rr = 0;
+       async->operation_mode = 0x0;
+}
+
 void intel_dp_compute_psr_vsc_sdp(struct intel_dp *intel_dp,
                                  const struct intel_crtc_state *crtc_state,
                                  const struct drm_connector_state *conn_state,
@@ -2965,6 +2985,7 @@ intel_dp_compute_config(struct intel_encoder *encoder,
        intel_psr_compute_config(intel_dp, pipe_config, conn_state);
        intel_dp_drrs_compute_config(connector, pipe_config, link_bpp_x16);
        intel_dp_compute_vsc_sdp(intel_dp, pipe_config, conn_state);
+       intel_dp_compute_as_sdp(intel_dp, pipe_config, conn_state);</pre>
    </blockquote>
    <p><br>
    </p>
    <p>IMHO, This compute part and read and write calls to <span style="white-space: pre-wrap">intel_read/write_dp_sdp should be in separate patch</span></p>
    <blockquote type="cite" cite="mid:20231123140244.4183869-4-mitulkumar.ajitkumar.golani@intel.com">
      <pre class="moz-quote-pre" wrap="">
        intel_dp_compute_hdr_metadata_infoframe_sdp(intel_dp, pipe_config, conn_state);
 
        return 0;
diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c
index ab18cfc19c0a..abea359985ce 100644
--- a/drivers/gpu/drm/i915/display/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/display/intel_hdmi.c
@@ -136,6 +136,8 @@ static u32 hsw_infoframe_enable(unsigned int type)
                return VIDEO_DIP_ENABLE_GMP_HSW;
        case DP_SDP_VSC:
                return VIDEO_DIP_ENABLE_VSC_HSW;
+       case DP_SDP_ADAPTIVE_SYNC:
+               return VIDEO_DIP_ENABLE_AS_HSW;
        case DP_SDP_PPS:
                return VDIP_ENABLE_PPS;
        case HDMI_INFOFRAME_TYPE_AVI:
@@ -163,6 +165,8 @@ hsw_dip_data_reg(struct drm_i915_private *dev_priv,
                return HSW_TVIDEO_DIP_GMP_DATA(cpu_transcoder, i);
        case DP_SDP_VSC:
                return HSW_TVIDEO_DIP_VSC_DATA(cpu_transcoder, i);
+       case DP_SDP_ADAPTIVE_SYNC:
+               return HSW_TVIDEO_DIP_ASYNC_DATA(cpu_transcoder, i);
        case DP_SDP_PPS:
                return ICL_VIDEO_DIP_PPS_DATA(cpu_transcoder, i);
        case HDMI_INFOFRAME_TYPE_AVI:
@@ -185,6 +189,8 @@ static int hsw_dip_data_size(struct drm_i915_private *dev_priv,
        switch (type) {
        case DP_SDP_VSC:
                return VIDEO_DIP_VSC_DATA_SIZE;
+       case DP_SDP_ADAPTIVE_SYNC:
+               return VIDEO_DIP_ASYNC_DATA_SIZE;
        case DP_SDP_PPS:
                return VIDEO_DIP_PPS_DATA_SIZE;
        case HDMI_PACKET_TYPE_GAMUT_METADATA:
@@ -555,7 +561,8 @@ static u32 hsw_infoframes_enabled(struct intel_encoder *encoder,
 
        mask = (VIDEO_DIP_ENABLE_VSC_HSW | VIDEO_DIP_ENABLE_AVI_HSW |
                VIDEO_DIP_ENABLE_GCP_HSW | VIDEO_DIP_ENABLE_VS_HSW |
-               VIDEO_DIP_ENABLE_GMP_HSW | VIDEO_DIP_ENABLE_SPD_HSW);
+               VIDEO_DIP_ENABLE_GMP_HSW | VIDEO_DIP_ENABLE_SPD_HSW |
+               VIDEO_DIP_ENABLE_AS_HSW);
 
        if (DISPLAY_VER(dev_priv) >= 10)
                mask |= VIDEO_DIP_ENABLE_DRM_GLK;
@@ -1209,7 +1216,7 @@ static void hsw_set_infoframes(struct intel_encoder *encoder,
        val &= ~(VIDEO_DIP_ENABLE_VSC_HSW | VIDEO_DIP_ENABLE_AVI_HSW |
                 VIDEO_DIP_ENABLE_GCP_HSW | VIDEO_DIP_ENABLE_VS_HSW |
                 VIDEO_DIP_ENABLE_GMP_HSW | VIDEO_DIP_ENABLE_SPD_HSW |
-                VIDEO_DIP_ENABLE_DRM_GLK);
+                VIDEO_DIP_ENABLE_DRM_GLK | VIDEO_DIP_ENABLE_AS_HSW);
 
        if (!enable) {
                intel_de_write(dev_priv, reg, val);
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 27dc903f0553..81d64c428693 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -2312,6 +2312,7 @@
  * (Haswell and newer) to see which VIDEO_DIP_DATA byte corresponds to each byte
  * of the infoframe structure specified by CEA-861. */
 #define   VIDEO_DIP_DATA_SIZE  32
+#define   VIDEO_DIP_ASYNC_DATA_SIZE    32
 #define   VIDEO_DIP_GMP_DATA_SIZE      36
 #define   VIDEO_DIP_VSC_DATA_SIZE      36
 #define   VIDEO_DIP_PPS_DATA_SIZE      132
@@ -2344,6 +2345,7 @@
 #define   VSC_DIP_HW_DATA_SW_HEA       (2 << 25)
 #define   VSC_DIP_SW_HEA_DATA          (3 << 25)
 #define   VDIP_ENABLE_PPS              (1 << 24)
+#define   VIDEO_DIP_ENABLE_AS_HSW      REG_BIT(23)</pre>
    </blockquote>
    This is defined for ADLP+<br>
    <blockquote type="cite" cite="mid:20231123140244.4183869-4-mitulkumar.ajitkumar.golani@intel.com">
      <pre class="moz-quote-pre" wrap="">
 #define   VIDEO_DIP_ENABLE_VSC_HSW     (1 << 20)
 #define   VIDEO_DIP_ENABLE_GCP_HSW     (1 << 16)
 #define   VIDEO_DIP_ENABLE_AVI_HSW     (1 << 12)
@@ -5038,6 +5040,7 @@
 #define _HSW_VIDEO_DIP_SPD_DATA_A      0x602A0
 #define _HSW_VIDEO_DIP_GMP_DATA_A      0x602E0
 #define _HSW_VIDEO_DIP_VSC_DATA_A      0x60320
+#define        _HSW_VIDEO_DIP_ASYNC_DATA_A     0x60484</pre>
    </blockquote>
    <p>These are defined from ADL onwards.<br>
    </p>
    <p>Also indentation seems to be off.</p>
    <p><br>
    </p>
    <p>Regards,</p>
    <p>Ankit<br>
    </p>
    <blockquote type="cite" cite="mid:20231123140244.4183869-4-mitulkumar.ajitkumar.golani@intel.com">
      <pre class="moz-quote-pre" wrap="">
 #define _GLK_VIDEO_DIP_DRM_DATA_A      0x60440
 #define _HSW_VIDEO_DIP_AVI_ECC_A       0x60240
 #define _HSW_VIDEO_DIP_VS_ECC_A                0x60280
@@ -5052,6 +5055,7 @@
 #define _HSW_VIDEO_DIP_SPD_DATA_B      0x612A0
 #define _HSW_VIDEO_DIP_GMP_DATA_B      0x612E0
 #define _HSW_VIDEO_DIP_VSC_DATA_B      0x61320
+#define        _HSW_VIDEO_DIP_ASYNC_DATA_B     0x61484
 #define _GLK_VIDEO_DIP_DRM_DATA_B      0x61440
 #define _HSW_VIDEO_DIP_BVI_ECC_B       0x61240
 #define _HSW_VIDEO_DIP_VS_ECC_B                0x61280
@@ -5078,6 +5082,8 @@
 #define HSW_TVIDEO_DIP_SPD_DATA(trans, i)      _MMIO_TRANS2(trans, _HSW_VIDEO_DIP_SPD_DATA_A + (i) * 4)
 #define HSW_TVIDEO_DIP_GMP_DATA(trans, i)      _MMIO_TRANS2(trans, _HSW_VIDEO_DIP_GMP_DATA_A + (i) * 4)
 #define HSW_TVIDEO_DIP_VSC_DATA(trans, i)      _MMIO_TRANS2(trans, _HSW_VIDEO_DIP_VSC_DATA_A + (i) * 4)
+#define HSW_TVIDEO_DIP_ASYNC_DATA(trans, i)    _MMIO_TRANS2(trans,\
+                                                            _HSW_VIDEO_DIP_ASYNC_DATA_A + (i) * 4)
 #define GLK_TVIDEO_DIP_DRM_DATA(trans, i)      _MMIO_TRANS2(trans, _GLK_VIDEO_DIP_DRM_DATA_A + (i) * 4)
 #define ICL_VIDEO_DIP_PPS_DATA(trans, i)       _MMIO_TRANS2(trans, _ICL_VIDEO_DIP_PPS_DATA_A + (i) * 4)
 #define ICL_VIDEO_DIP_PPS_ECC(trans, i)                _MMIO_TRANS2(trans, _ICL_VIDEO_DIP_PPS_ECC_A + (i) * 4)
</pre>
    </blockquote>
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