<!DOCTYPE html><html><head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
</head>
<body>
<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>
</body>
</html>