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* [PATCH v9 00/14] In order to readout DP SDPs, refactors the handling of DP SDPs
@ 2020-03-30 16:23 Gwan-gyeong Mun
  2020-03-30 16:23 ` [PATCH v9 01/14] video/hdmi: Add Unpack only function for DRM infoframe Gwan-gyeong Mun
                   ` (13 more replies)
  0 siblings, 14 replies; 15+ messages in thread
From: Gwan-gyeong Mun @ 2020-03-30 16:23 UTC (permalink / raw)
  To: intel-gfx
  Cc: linux-fbdev, jani.nikula, dri-devel, uma.shankar, laurent.pinchart

In order to readout DP SDPs (Secondary Data Packet: DP HDR Metadata
Infoframe SDP, DP VSC SDP), it refactors handling DP SDPs codes.
It adds new compute routines for DP HDR Metadata Infoframe SDP
and DP VSC SDP. 
And new writing routines of DP SDPs (Secondary Data Packet) that uses
computed configs.
New reading routines of DP SDPs are added for readout.
It adds a logging function for DP VSC SDP.
When receiving video it is very useful to be able to log DP VSC SDP.
This greatly simplifies debugging.
In order to use a common VSC SDP Colorimetry calculating code on PSR,
it uses a new psr vsc sdp compute routine.

v2: Minor style fix
v3: 
  - Add a new drm data structure for DP VSC SDP
  - Replace a structure name to drm_dp_vsc_sdp from intel_dp_vsc_sdp
  - Move logging functions to drm core [Jani N]
    And use drm core's DP VSC SDP logging function
  - Explicitly disable unused DIPs (AVI, GCP, VS, SPD, DRM. They will be
    used for HDMI), when intel_dp_set_infoframes() function will be called.
v4:
  - Use struct drm_device logging macros
  - Rebased
v5:
  - Use intel_de_*() functions for register access
  - Add warning where a bpc is 6 and a pixel format is RGB.
  - Addressed review comments from Uma
    Add kernel docs for added data structures
    Rename enum dp_colorspace to dp_pixelformat
    Polish commit message and comments
    Combine the if checks of sdp.HB2 and sdp.HB3
    Add 6bpc to packining and unpacking of VSC SDP
v6: Fix enabled infoframe states of lspcon
v7: Fix the wrong check of combination bpc 6 and RGB pixelformat
v8: Rebased
v9: Add clear comments to hdmi_drm_infoframe_unpack_only() and
    hdmi_drm_infoframe_unpack() (Laurent Pinchart)

Gwan-gyeong Mun (14):
  video/hdmi: Add Unpack only function for DRM infoframe
  drm/i915/dp: Read out DP SDPs
  drm: Add logging function for DP VSC SDP
  drm/i915: Include HDMI DRM infoframe in the crtc state dump
  drm/i915: Include DP HDR Metadata Infoframe SDP in the crtc state dump
  drm/i915: Include DP VSC SDP in the crtc state dump
  drm/i915: Program DP SDPs with computed configs
  drm/i915: Add state readout for DP HDR Metadata Infoframe SDP
  drm/i915: Add state readout for DP VSC SDP
  drm/i915: Fix enabled infoframe states of lspcon
  drm/i915: Program DP SDPs on pipe updates
  drm/i915: Stop sending DP SDPs on ddi disable
  drm/i915/dp: Add compute routine for DP PSR VSC SDP
  drm/i915/psr: Use new DP VSC SDP compute routine on PSR

 drivers/gpu/drm/drm_dp_helper.c              | 174 +++++++++
 drivers/gpu/drm/i915/display/intel_ddi.c     |  19 +-
 drivers/gpu/drm/i915/display/intel_display.c |  62 +++
 drivers/gpu/drm/i915/display/intel_dp.c      | 391 ++++++++++---------
 drivers/gpu/drm/i915/display/intel_dp.h      |  15 +-
 drivers/gpu/drm/i915/display/intel_lspcon.c  |   2 +-
 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 +
 drivers/video/hdmi.c                         |  65 ++-
 include/drm/drm_dp_helper.h                  |   3 +
 include/linux/hdmi.h                         |   2 +
 12 files changed, 536 insertions(+), 258 deletions(-)

-- 
2.25.0

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^ permalink raw reply	[flat|nested] 15+ messages in thread

* [PATCH v9 01/14] video/hdmi: Add Unpack only function for DRM infoframe
  2020-03-30 16:23 [PATCH v9 00/14] In order to readout DP SDPs, refactors the handling of DP SDPs Gwan-gyeong Mun
@ 2020-03-30 16:23 ` Gwan-gyeong Mun
  2020-03-30 16:23 ` [PATCH v9 02/14] drm/i915/dp: Read out DP SDPs Gwan-gyeong Mun
                   ` (12 subsequent siblings)
  13 siblings, 0 replies; 15+ messages in thread
From: Gwan-gyeong Mun @ 2020-03-30 16:23 UTC (permalink / raw)
  To: intel-gfx
  Cc: linux-fbdev, jani.nikula, dri-devel, uma.shankar, laurent.pinchart

It adds an unpack only function for DRM infoframe for dynamic range and
mastering infoframe readout.
It unpacks the information data block contained in the binary buffer into
a structured frame of the HDMI Dynamic Range and Mastering (DRM)
information frame.

In contrast to hdmi_drm_infoframe_unpack() function, it does not verify
a checksum.

It can be used for unpacking a DP HDR Metadata Infoframe SDP case.
DP HDR Metadata Infoframe SDP uses the same Dynamic Range and Mastering
(DRM) information (CTA-861-G spec.) such as HDMI DRM infoframe.
But DP SDP header and payload structure are different from HDMI DRM
Infoframe. Therefore unpacking DRM infoframe for DP requires skipping of
a verifying checksum.

v9: Add clear comments to hdmi_drm_infoframe_unpack_only() and
    hdmi_drm_infoframe_unpack() (Laurent Pinchart)

Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
---
 drivers/video/hdmi.c | 65 +++++++++++++++++++++++++++++++-------------
 include/linux/hdmi.h |  2 ++
 2 files changed, 48 insertions(+), 19 deletions(-)

diff --git a/drivers/video/hdmi.c b/drivers/video/hdmi.c
index 856a8c4e84a2..e70792b3e367 100644
--- a/drivers/video/hdmi.c
+++ b/drivers/video/hdmi.c
@@ -1768,20 +1768,21 @@ hdmi_vendor_any_infoframe_unpack(union hdmi_vendor_any_infoframe *frame,
 }
 
 /**
- * hdmi_drm_infoframe_unpack() - unpack binary buffer to a HDMI DRM infoframe
+ * hdmi_drm_infoframe_unpack_only() - unpack binary buffer of CTA-861-G DRM
+ *                                    infoframe DataBytes to a HDMI DRM
+ *                                    infoframe
  * @frame: HDMI DRM infoframe
  * @buffer: source buffer
  * @size: size of buffer
  *
- * Unpacks the information contained in binary @buffer into a structured
- * @frame of the HDMI Dynamic Range and Mastering (DRM) information frame.
- * Also verifies the checksum as required by section 5.3.5 of the HDMI 1.4
- * specification.
+ * Unpacks CTA-861-G DRM infoframe DataBytes contained in the binary @buffer
+ * into a structured @frame of the HDMI Dynamic Range and Mastering (DRM)
+ * infoframe.
  *
  * Returns 0 on success or a negative error code on failure.
  */
-static int hdmi_drm_infoframe_unpack(struct hdmi_drm_infoframe *frame,
-				     const void *buffer, size_t size)
+int hdmi_drm_infoframe_unpack_only(struct hdmi_drm_infoframe *frame,
+				   const void *buffer, size_t size)
 {
 	const u8 *ptr = buffer;
 	const u8 *temp;
@@ -1790,23 +1791,13 @@ static int hdmi_drm_infoframe_unpack(struct hdmi_drm_infoframe *frame,
 	int ret;
 	int i;
 
-	if (size < HDMI_INFOFRAME_SIZE(DRM))
-		return -EINVAL;
-
-	if (ptr[0] != HDMI_INFOFRAME_TYPE_DRM ||
-	    ptr[1] != 1 ||
-	    ptr[2] != HDMI_DRM_INFOFRAME_SIZE)
-		return -EINVAL;
-
-	if (hdmi_infoframe_checksum(buffer, HDMI_INFOFRAME_SIZE(DRM)) != 0)
+	if (size < HDMI_DRM_INFOFRAME_SIZE)
 		return -EINVAL;
 
 	ret = hdmi_drm_infoframe_init(frame);
 	if (ret)
 		return ret;
 
-	ptr += HDMI_INFOFRAME_HEADER_SIZE;
-
 	frame->eotf = ptr[0] & 0x7;
 	frame->metadata_type = ptr[1] & 0x7;
 
@@ -1814,7 +1805,7 @@ static int hdmi_drm_infoframe_unpack(struct hdmi_drm_infoframe *frame,
 	for (i = 0; i < 3; i++) {
 		x_lsb = *temp++;
 		x_msb = *temp++;
-		frame->display_primaries[i].x =  (x_msb << 8) | x_lsb;
+		frame->display_primaries[i].x = (x_msb << 8) | x_lsb;
 		y_lsb = *temp++;
 		y_msb = *temp++;
 		frame->display_primaries[i].y = (y_msb << 8) | y_lsb;
@@ -1830,6 +1821,42 @@ static int hdmi_drm_infoframe_unpack(struct hdmi_drm_infoframe *frame,
 
 	return 0;
 }
+EXPORT_SYMBOL(hdmi_drm_infoframe_unpack_only);
+
+/**
+ * hdmi_drm_infoframe_unpack() - unpack binary buffer to a HDMI DRM infoframe
+ * @frame: HDMI DRM infoframe
+ * @buffer: source buffer
+ * @size: size of buffer
+ *
+ * Unpacks the CTA-861-G DRM infoframe contained in the binary @buffer into
+ * a structured @frame of the HDMI Dynamic Range and Mastering (DRM)
+ * infoframe. It also verifies the checksum as required by section 5.3.5 of
+ * the HDMI 1.4 specification.
+ *
+ * Returns 0 on success or a negative error code on failure.
+ */
+static int hdmi_drm_infoframe_unpack(struct hdmi_drm_infoframe *frame,
+				     const void *buffer, size_t size)
+{
+	const u8 *ptr = buffer;
+	int ret;
+
+	if (size < HDMI_INFOFRAME_SIZE(DRM))
+		return -EINVAL;
+
+	if (ptr[0] != HDMI_INFOFRAME_TYPE_DRM ||
+	    ptr[1] != 1 ||
+	    ptr[2] != HDMI_DRM_INFOFRAME_SIZE)
+		return -EINVAL;
+
+	if (hdmi_infoframe_checksum(buffer, HDMI_INFOFRAME_SIZE(DRM)) != 0)
+		return -EINVAL;
+
+	ret = hdmi_drm_infoframe_unpack_only(frame, ptr + HDMI_INFOFRAME_HEADER_SIZE,
+					     size - HDMI_INFOFRAME_HEADER_SIZE);
+	return ret;
+}
 
 /**
  * hdmi_infoframe_unpack() - unpack binary buffer to a HDMI infoframe
diff --git a/include/linux/hdmi.h b/include/linux/hdmi.h
index 9613d796cfb1..50c31f1a0a2d 100644
--- a/include/linux/hdmi.h
+++ b/include/linux/hdmi.h
@@ -219,6 +219,8 @@ ssize_t hdmi_drm_infoframe_pack(struct hdmi_drm_infoframe *frame, void *buffer,
 ssize_t hdmi_drm_infoframe_pack_only(const struct hdmi_drm_infoframe *frame,
 				     void *buffer, size_t size);
 int hdmi_drm_infoframe_check(struct hdmi_drm_infoframe *frame);
+int hdmi_drm_infoframe_unpack_only(struct hdmi_drm_infoframe *frame,
+				   const void *buffer, size_t size);
 
 enum hdmi_spd_sdi {
 	HDMI_SPD_SDI_UNKNOWN,
-- 
2.25.0

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dri-devel mailing list
dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

^ permalink raw reply related	[flat|nested] 15+ messages in thread

* [PATCH v9 02/14] drm/i915/dp: Read out DP SDPs
  2020-03-30 16:23 [PATCH v9 00/14] In order to readout DP SDPs, refactors the handling of DP SDPs Gwan-gyeong Mun
  2020-03-30 16:23 ` [PATCH v9 01/14] video/hdmi: Add Unpack only function for DRM infoframe Gwan-gyeong Mun
@ 2020-03-30 16:23 ` Gwan-gyeong Mun
  2020-03-30 16:23 ` [PATCH v9 03/14] drm: Add logging function for DP VSC SDP Gwan-gyeong Mun
                   ` (11 subsequent siblings)
  13 siblings, 0 replies; 15+ messages in thread
From: Gwan-gyeong Mun @ 2020-03-30 16:23 UTC (permalink / raw)
  To: intel-gfx
  Cc: linux-fbdev, jani.nikula, dri-devel, uma.shankar, laurent.pinchart

It adds code to read the DP SDPs from the video DIP and unpack them into
the crtc state.

It adds routines that read out DP VSC SDP and DP HDR Metadata Infoframe SDP
In order to unpack DP VSC SDP, it adds intel_dp_vsc_sdp_unpack() function.
It follows DP 1.4a spec. [Table 2-116: VSC SDP Header Bytes] and
[Table 2-117: VSC SDP Payload for DB16 through DB18]

In order to unpack DP HDR Metadata Infoframe SDP, it adds
intel_dp_hdr_metadata_infoframe_sdp_unpack(). And it follows DP 1.4a spec.
([Table 2-125: INFOFRAME SDP v1.2 Header Bytes] and
[Table 2-126: INFOFRAME SDP v1.2 Payload Data Bytes - DB0 through DB31])
and CTA-861-G spec. [Table-42 Dynamic Range and Mastering InfoFrame].

A naming rule and style of intel_read_dp_sdp() function references
intel_read_infoframe() function of intel_hdmi.c

v2: Minor style fix
v3: Replace a structure name to drm_dp_vsc_sdp from intel_dp_vsc_sdp
v4: Use struct drm_device logging macros
v5: Addressed review comments from Uma
  - Polish commit message and comments
  - Combine the if checks of sdp.HB2 and sdp.HB3
  - Add 6bpc to unpacking of VSC SDP

Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp.c | 187 ++++++++++++++++++++++++
 drivers/gpu/drm/i915/display/intel_dp.h |   3 +
 2 files changed, 190 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 2e715e6d7bb4..e34a6a75e97c 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -4969,6 +4969,193 @@ void intel_dp_set_infoframes(struct intel_encoder *encoder,
 	intel_write_dp_sdp(encoder, crtc_state, HDMI_PACKET_TYPE_GAMUT_METADATA);
 }
 
+static int intel_dp_vsc_sdp_unpack(struct drm_dp_vsc_sdp *vsc,
+				   const void *buffer, size_t size)
+{
+	const struct dp_sdp *sdp = buffer;
+
+	if (size < sizeof(struct dp_sdp))
+		return -EINVAL;
+
+	memset(vsc, 0, size);
+
+	if (sdp->sdp_header.HB0 != 0)
+		return -EINVAL;
+
+	if (sdp->sdp_header.HB1 != DP_SDP_VSC)
+		return -EINVAL;
+
+	vsc->sdp_type = sdp->sdp_header.HB1;
+	vsc->revision = sdp->sdp_header.HB2;
+	vsc->length = sdp->sdp_header.HB3;
+
+	if ((sdp->sdp_header.HB2 == 0x2 && sdp->sdp_header.HB3 == 0x8) ||
+	    (sdp->sdp_header.HB2 == 0x4 && sdp->sdp_header.HB3 == 0xe)) {
+		/*
+		 * - HB2 = 0x2, HB3 = 0x8
+		 *   VSC SDP supporting 3D stereo + PSR
+		 * - HB2 = 0x4, HB3 = 0xe
+		 *   VSC SDP supporting 3D stereo + PSR2 with Y-coordinate of
+		 *   first scan line of the SU region (applies to eDP v1.4b
+		 *   and higher).
+		 */
+		return 0;
+	} else if (sdp->sdp_header.HB2 == 0x5 && sdp->sdp_header.HB3 == 0x13) {
+		/*
+		 * - HB2 = 0x5, HB3 = 0x13
+		 *   VSC SDP supporting 3D stereo + PSR2 + Pixel Encoding/Colorimetry
+		 *   Format.
+		 */
+		vsc->pixelformat = (sdp->db[16] >> 4) & 0xf;
+		vsc->colorimetry = sdp->db[16] & 0xf;
+		vsc->dynamic_range = (sdp->db[17] >> 7) & 0x1;
+
+		switch (sdp->db[17] & 0x7) {
+		case 0x0:
+			vsc->bpc = 6;
+			break;
+		case 0x1:
+			vsc->bpc = 8;
+			break;
+		case 0x2:
+			vsc->bpc = 10;
+			break;
+		case 0x3:
+			vsc->bpc = 12;
+			break;
+		case 0x4:
+			vsc->bpc = 16;
+			break;
+		default:
+			MISSING_CASE(sdp->db[17] & 0x7);
+			return -EINVAL;
+		}
+
+		vsc->content_type = sdp->db[18] & 0x7;
+	} else {
+		return -EINVAL;
+	}
+
+	return 0;
+}
+
+static int
+intel_dp_hdr_metadata_infoframe_sdp_unpack(struct hdmi_drm_infoframe *drm_infoframe,
+					   const void *buffer, size_t size)
+{
+	int ret;
+
+	const struct dp_sdp *sdp = buffer;
+
+	if (size < sizeof(struct dp_sdp))
+		return -EINVAL;
+
+	if (sdp->sdp_header.HB0 != 0)
+		return -EINVAL;
+
+	if (sdp->sdp_header.HB1 != HDMI_INFOFRAME_TYPE_DRM)
+		return -EINVAL;
+
+	/*
+	 * Least Significant Eight Bits of (Data Byte Count – 1)
+	 * 1Dh (i.e., Data Byte Count = 30 bytes).
+	 */
+	if (sdp->sdp_header.HB2 != 0x1D)
+		return -EINVAL;
+
+	/* Most Significant Two Bits of (Data Byte Count – 1), Clear to 00b. */
+	if ((sdp->sdp_header.HB3 & 0x3) != 0)
+		return -EINVAL;
+
+	/* INFOFRAME SDP Version Number */
+	if (((sdp->sdp_header.HB3 >> 2) & 0x3f) != 0x13)
+		return -EINVAL;
+
+	/* CTA Header Byte 2 (INFOFRAME Version Number) */
+	if (sdp->db[0] != 1)
+		return -EINVAL;
+
+	/* CTA Header Byte 3 (Length of INFOFRAME): HDMI_DRM_INFOFRAME_SIZE */
+	if (sdp->db[1] != HDMI_DRM_INFOFRAME_SIZE)
+		return -EINVAL;
+
+	ret = hdmi_drm_infoframe_unpack_only(drm_infoframe, &sdp->db[2],
+					     HDMI_DRM_INFOFRAME_SIZE);
+
+	return ret;
+}
+
+static void intel_read_dp_vsc_sdp(struct intel_encoder *encoder,
+				  struct intel_crtc_state *crtc_state,
+				  struct drm_dp_vsc_sdp *vsc)
+{
+	struct intel_digital_port *intel_dig_port = enc_to_dig_port(encoder);
+	struct intel_dp *intel_dp = enc_to_intel_dp(encoder);
+	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
+	unsigned int type = DP_SDP_VSC;
+	struct dp_sdp sdp = {};
+	int ret;
+
+	/* When PSR is enabled, VSC SDP is handled by PSR routine */
+	if (intel_psr_enabled(intel_dp))
+		return;
+
+	if ((crtc_state->infoframes.enable &
+	     intel_hdmi_infoframe_enable(type)) == 0)
+		return;
+
+	intel_dig_port->read_infoframe(encoder, crtc_state, type, &sdp, sizeof(sdp));
+
+	ret = intel_dp_vsc_sdp_unpack(vsc, &sdp, sizeof(sdp));
+
+	if (ret)
+		drm_dbg_kms(&dev_priv->drm, "Failed to unpack DP VSC SDP\n");
+}
+
+static void intel_read_dp_hdr_metadata_infoframe_sdp(struct intel_encoder *encoder,
+						     struct intel_crtc_state *crtc_state,
+						     struct hdmi_drm_infoframe *drm_infoframe)
+{
+	struct intel_digital_port *intel_dig_port = enc_to_dig_port(encoder);
+	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
+	unsigned int type = HDMI_PACKET_TYPE_GAMUT_METADATA;
+	struct dp_sdp sdp = {};
+	int ret;
+
+	if ((crtc_state->infoframes.enable &
+	    intel_hdmi_infoframe_enable(type)) == 0)
+		return;
+
+	intel_dig_port->read_infoframe(encoder, crtc_state, type, &sdp,
+				       sizeof(sdp));
+
+	ret = intel_dp_hdr_metadata_infoframe_sdp_unpack(drm_infoframe, &sdp,
+							 sizeof(sdp));
+
+	if (ret)
+		drm_dbg_kms(&dev_priv->drm,
+			    "Failed to unpack DP HDR Metadata Infoframe SDP\n");
+}
+
+void intel_read_dp_sdp(struct intel_encoder *encoder,
+		       struct intel_crtc_state *crtc_state,
+		       unsigned int type)
+{
+	switch (type) {
+	case DP_SDP_VSC:
+		intel_read_dp_vsc_sdp(encoder, crtc_state,
+				      &crtc_state->infoframes.vsc);
+		break;
+	case HDMI_PACKET_TYPE_GAMUT_METADATA:
+		intel_read_dp_hdr_metadata_infoframe_sdp(encoder, crtc_state,
+							 &crtc_state->infoframes.drm.drm);
+		break;
+	default:
+		MISSING_CASE(type);
+		break;
+	}
+}
+
 static void
 intel_dp_setup_vsc_sdp(struct intel_dp *intel_dp,
 		       const struct intel_crtc_state *crtc_state,
diff --git a/drivers/gpu/drm/i915/display/intel_dp.h b/drivers/gpu/drm/i915/display/intel_dp.h
index 9632978e8c24..4b0a1e9942f6 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.h
+++ b/drivers/gpu/drm/i915/display/intel_dp.h
@@ -117,6 +117,9 @@ void intel_dp_hdr_metadata_enable(struct intel_dp *intel_dp,
 void intel_dp_set_infoframes(struct intel_encoder *encoder, bool enable,
 			     const struct intel_crtc_state *crtc_state,
 			     const struct drm_connector_state *conn_state);
+void intel_read_dp_sdp(struct intel_encoder *encoder,
+		       struct intel_crtc_state *crtc_state,
+		       unsigned int type);
 bool intel_digital_port_connected(struct intel_encoder *encoder);
 
 static inline unsigned int intel_dp_unused_lane_mask(int lane_count)
-- 
2.25.0

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https://lists.freedesktop.org/mailman/listinfo/dri-devel

^ permalink raw reply related	[flat|nested] 15+ messages in thread

* [PATCH v9 03/14] drm: Add logging function for DP VSC SDP
  2020-03-30 16:23 [PATCH v9 00/14] In order to readout DP SDPs, refactors the handling of DP SDPs Gwan-gyeong Mun
  2020-03-30 16:23 ` [PATCH v9 01/14] video/hdmi: Add Unpack only function for DRM infoframe Gwan-gyeong Mun
  2020-03-30 16:23 ` [PATCH v9 02/14] drm/i915/dp: Read out DP SDPs Gwan-gyeong Mun
@ 2020-03-30 16:23 ` Gwan-gyeong Mun
  2020-03-30 16:23 ` [PATCH v9 04/14] drm/i915: Include HDMI DRM infoframe in the crtc state dump Gwan-gyeong Mun
                   ` (10 subsequent siblings)
  13 siblings, 0 replies; 15+ messages in thread
From: Gwan-gyeong Mun @ 2020-03-30 16:23 UTC (permalink / raw)
  To: intel-gfx
  Cc: linux-fbdev, jani.nikula, dri-devel, uma.shankar, laurent.pinchart

When receiving video it is very useful to be able to log DP VSC SDP.
This greatly simplifies debugging.

v2: Minor style fix
v3: Move logging functions to drm core [Jani N]
v5: Rebased

Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
---
 drivers/gpu/drm/drm_dp_helper.c | 174 ++++++++++++++++++++++++++++++++
 include/drm/drm_dp_helper.h     |   3 +
 2 files changed, 177 insertions(+)

diff --git a/drivers/gpu/drm/drm_dp_helper.c b/drivers/gpu/drm/drm_dp_helper.c
index 8ba4531e808d..e4f8e0ca44b7 100644
--- a/drivers/gpu/drm/drm_dp_helper.c
+++ b/drivers/gpu/drm/drm_dp_helper.c
@@ -1535,3 +1535,177 @@ int drm_dp_dsc_sink_supported_input_bpcs(const u8 dsc_dpcd[DP_DSC_RECEIVER_CAP_S
 	return num_bpc;
 }
 EXPORT_SYMBOL(drm_dp_dsc_sink_supported_input_bpcs);
+
+static const char *dp_pixelformat_get_name(enum dp_pixelformat pixelformat)
+{
+	if (pixelformat < 0 || pixelformat > DP_PIXELFORMAT_RESERVED)
+		return "Invalid";
+
+	switch (pixelformat) {
+	case DP_PIXELFORMAT_RGB:
+		return "RGB";
+	case DP_PIXELFORMAT_YUV444:
+		return "YUV444";
+	case DP_PIXELFORMAT_YUV422:
+		return "YUV422";
+	case DP_PIXELFORMAT_YUV420:
+		return "YUV420";
+	case DP_PIXELFORMAT_Y_ONLY:
+		return "Y_ONLY";
+	case DP_PIXELFORMAT_RAW:
+		return "RAW";
+	default:
+		return "Reserved";
+	}
+}
+
+static const char *dp_colorimetry_get_name(enum dp_pixelformat pixelformat,
+					   enum dp_colorimetry colorimetry)
+{
+	if (pixelformat < 0 || pixelformat > DP_PIXELFORMAT_RESERVED)
+		return "Invalid";
+
+	switch (colorimetry) {
+	case DP_COLORIMETRY_DEFAULT:
+		switch (pixelformat) {
+		case DP_PIXELFORMAT_RGB:
+			return "sRGB";
+		case DP_PIXELFORMAT_YUV444:
+		case DP_PIXELFORMAT_YUV422:
+		case DP_PIXELFORMAT_YUV420:
+			return "BT.601";
+		case DP_PIXELFORMAT_Y_ONLY:
+			return "DICOM PS3.14";
+		case DP_PIXELFORMAT_RAW:
+			return "Custom Color Profile";
+		default:
+			return "Reserved";
+		}
+	case DP_COLORIMETRY_RGB_WIDE_FIXED: /* and DP_COLORIMETRY_BT709_YCC */
+		switch (pixelformat) {
+		case DP_PIXELFORMAT_RGB:
+			return "Wide Fixed";
+		case DP_PIXELFORMAT_YUV444:
+		case DP_PIXELFORMAT_YUV422:
+		case DP_PIXELFORMAT_YUV420:
+			return "BT.709";
+		default:
+			return "Reserved";
+		}
+	case DP_COLORIMETRY_RGB_WIDE_FLOAT: /* and DP_COLORIMETRY_XVYCC_601 */
+		switch (pixelformat) {
+		case DP_PIXELFORMAT_RGB:
+			return "Wide Float";
+		case DP_PIXELFORMAT_YUV444:
+		case DP_PIXELFORMAT_YUV422:
+		case DP_PIXELFORMAT_YUV420:
+			return "xvYCC 601";
+		default:
+			return "Reserved";
+		}
+	case DP_COLORIMETRY_OPRGB: /* and DP_COLORIMETRY_XVYCC_709 */
+		switch (pixelformat) {
+		case DP_PIXELFORMAT_RGB:
+			return "OpRGB";
+		case DP_PIXELFORMAT_YUV444:
+		case DP_PIXELFORMAT_YUV422:
+		case DP_PIXELFORMAT_YUV420:
+			return "xvYCC 709";
+		default:
+			return "Reserved";
+		}
+	case DP_COLORIMETRY_DCI_P3_RGB: /* and DP_COLORIMETRY_SYCC_601 */
+		switch (pixelformat) {
+		case DP_PIXELFORMAT_RGB:
+			return "DCI-P3";
+		case DP_PIXELFORMAT_YUV444:
+		case DP_PIXELFORMAT_YUV422:
+		case DP_PIXELFORMAT_YUV420:
+			return "sYCC 601";
+		default:
+			return "Reserved";
+		}
+	case DP_COLORIMETRY_RGB_CUSTOM: /* and DP_COLORIMETRY_OPYCC_601 */
+		switch (pixelformat) {
+		case DP_PIXELFORMAT_RGB:
+			return "Custom Profile";
+		case DP_PIXELFORMAT_YUV444:
+		case DP_PIXELFORMAT_YUV422:
+		case DP_PIXELFORMAT_YUV420:
+			return "OpYCC 601";
+		default:
+			return "Reserved";
+		}
+	case DP_COLORIMETRY_BT2020_RGB: /* and DP_COLORIMETRY_BT2020_CYCC */
+		switch (pixelformat) {
+		case DP_PIXELFORMAT_RGB:
+			return "BT.2020 RGB";
+		case DP_PIXELFORMAT_YUV444:
+		case DP_PIXELFORMAT_YUV422:
+		case DP_PIXELFORMAT_YUV420:
+			return "BT.2020 CYCC";
+		default:
+			return "Reserved";
+		}
+	case DP_COLORIMETRY_BT2020_YCC:
+		switch (pixelformat) {
+		case DP_PIXELFORMAT_YUV444:
+		case DP_PIXELFORMAT_YUV422:
+		case DP_PIXELFORMAT_YUV420:
+			return "BT.2020 YCC";
+		default:
+			return "Reserved";
+		}
+	default:
+		return "Invalid";
+	}
+}
+
+static const char *dp_dynamic_range_get_name(enum dp_dynamic_range dynamic_range)
+{
+	switch (dynamic_range) {
+	case DP_DYNAMIC_RANGE_VESA:
+		return "VESA range";
+	case DP_DYNAMIC_RANGE_CTA:
+		return "CTA range";
+	default:
+		return "Invalid";
+	}
+}
+
+static const char *dp_content_type_get_name(enum dp_content_type content_type)
+{
+	switch (content_type) {
+	case DP_CONTENT_TYPE_NOT_DEFINED:
+		return "Not defined";
+	case DP_CONTENT_TYPE_GRAPHICS:
+		return "Graphics";
+	case DP_CONTENT_TYPE_PHOTO:
+		return "Photo";
+	case DP_CONTENT_TYPE_VIDEO:
+		return "Video";
+	case DP_CONTENT_TYPE_GAME:
+		return "Game";
+	default:
+		return "Reserved";
+	}
+}
+
+void drm_dp_vsc_sdp_log(const char *level, struct device *dev,
+			const struct drm_dp_vsc_sdp *vsc)
+{
+#define DP_SDP_LOG(fmt, ...) dev_printk(level, dev, fmt, ##__VA_ARGS__)
+	DP_SDP_LOG("DP SDP: %s, revision %u, length %u\n", "VSC",
+		   vsc->revision, vsc->length);
+	DP_SDP_LOG("    pixelformat: %s\n",
+		   dp_pixelformat_get_name(vsc->pixelformat));
+	DP_SDP_LOG("    colorimetry: %s\n",
+		   dp_colorimetry_get_name(vsc->pixelformat, vsc->colorimetry));
+	DP_SDP_LOG("    bpc: %u\n", vsc->bpc);
+	DP_SDP_LOG("    dynamic range: %s\n",
+		   dp_dynamic_range_get_name(vsc->dynamic_range));
+	DP_SDP_LOG("    content type: %s\n",
+		   dp_content_type_get_name(vsc->content_type));
+#undef DP_SDP_LOG
+}
+EXPORT_SYMBOL(drm_dp_vsc_sdp_log);
diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index 305533da13ad..d23b7286ac42 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -1339,6 +1339,9 @@ struct drm_dp_vsc_sdp {
 	enum dp_content_type content_type;
 };
 
+void drm_dp_vsc_sdp_log(const char *level, struct device *dev,
+			const struct drm_dp_vsc_sdp *vsc);
+
 int drm_dp_psr_setup_time(const u8 psr_cap[EDP_PSR_RECEIVER_CAP_SIZE]);
 
 static inline int
-- 
2.25.0

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https://lists.freedesktop.org/mailman/listinfo/dri-devel

^ permalink raw reply related	[flat|nested] 15+ messages in thread

* [PATCH v9 04/14] drm/i915: Include HDMI DRM infoframe in the crtc state dump
  2020-03-30 16:23 [PATCH v9 00/14] In order to readout DP SDPs, refactors the handling of DP SDPs Gwan-gyeong Mun
                   ` (2 preceding siblings ...)
  2020-03-30 16:23 ` [PATCH v9 03/14] drm: Add logging function for DP VSC SDP Gwan-gyeong Mun
@ 2020-03-30 16:23 ` Gwan-gyeong Mun
  2020-03-30 16:23 ` [PATCH v9 05/14] drm/i915: Include DP HDR Metadata Infoframe SDP " Gwan-gyeong Mun
                   ` (9 subsequent siblings)
  13 siblings, 0 replies; 15+ messages in thread
From: Gwan-gyeong Mun @ 2020-03-30 16:23 UTC (permalink / raw)
  To: intel-gfx
  Cc: linux-fbdev, jani.nikula, dri-devel, uma.shankar, laurent.pinchart

Dump out the HDMI Dynamic Range and Mastering (DRM) infoframe in the
normal crtc state dump.

Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
---
 drivers/gpu/drm/i915/display/intel_display.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index e09a11b1e509..7fb60312d262 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -12983,6 +12983,9 @@ static void intel_dump_pipe_config(const struct intel_crtc_state *pipe_config,
 	if (pipe_config->infoframes.enable &
 	    intel_hdmi_infoframe_enable(HDMI_INFOFRAME_TYPE_VENDOR))
 		intel_dump_infoframe(dev_priv, &pipe_config->infoframes.hdmi);
+	if (pipe_config->infoframes.enable &
+	    intel_hdmi_infoframe_enable(HDMI_INFOFRAME_TYPE_DRM))
+		intel_dump_infoframe(dev_priv, &pipe_config->infoframes.drm);
 
 	drm_dbg_kms(&dev_priv->drm, "requested mode:\n");
 	drm_mode_debug_printmodeline(&pipe_config->hw.mode);
-- 
2.25.0

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https://lists.freedesktop.org/mailman/listinfo/dri-devel

^ permalink raw reply related	[flat|nested] 15+ messages in thread

* [PATCH v9 05/14] drm/i915: Include DP HDR Metadata Infoframe SDP in the crtc state dump
  2020-03-30 16:23 [PATCH v9 00/14] In order to readout DP SDPs, refactors the handling of DP SDPs Gwan-gyeong Mun
                   ` (3 preceding siblings ...)
  2020-03-30 16:23 ` [PATCH v9 04/14] drm/i915: Include HDMI DRM infoframe in the crtc state dump Gwan-gyeong Mun
@ 2020-03-30 16:23 ` Gwan-gyeong Mun
  2020-03-30 16:23 ` [PATCH v9 06/14] drm/i915: Include DP VSC " Gwan-gyeong Mun
                   ` (8 subsequent siblings)
  13 siblings, 0 replies; 15+ messages in thread
From: Gwan-gyeong Mun @ 2020-03-30 16:23 UTC (permalink / raw)
  To: intel-gfx
  Cc: linux-fbdev, jani.nikula, dri-devel, uma.shankar, laurent.pinchart

Dump out the DP HDR Metadata Infoframe SDP in the normal crtc state dump.

HDMI Dynamic Range and Mastering (DRM) infoframe and DP HDR Metadata
Infoframe SDP use the same member variable in infoframes of crtc state.

Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
---
 drivers/gpu/drm/i915/display/intel_display.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 7fb60312d262..6f4f17a2ec1f 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -12986,6 +12986,9 @@ static void intel_dump_pipe_config(const struct intel_crtc_state *pipe_config,
 	if (pipe_config->infoframes.enable &
 	    intel_hdmi_infoframe_enable(HDMI_INFOFRAME_TYPE_DRM))
 		intel_dump_infoframe(dev_priv, &pipe_config->infoframes.drm);
+	if (pipe_config->infoframes.enable &
+	    intel_hdmi_infoframe_enable(HDMI_PACKET_TYPE_GAMUT_METADATA))
+		intel_dump_infoframe(dev_priv, &pipe_config->infoframes.drm);
 
 	drm_dbg_kms(&dev_priv->drm, "requested mode:\n");
 	drm_mode_debug_printmodeline(&pipe_config->hw.mode);
-- 
2.25.0

_______________________________________________
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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

^ permalink raw reply related	[flat|nested] 15+ messages in thread

* [PATCH v9 06/14] drm/i915: Include DP VSC SDP in the crtc state dump
  2020-03-30 16:23 [PATCH v9 00/14] In order to readout DP SDPs, refactors the handling of DP SDPs Gwan-gyeong Mun
                   ` (4 preceding siblings ...)
  2020-03-30 16:23 ` [PATCH v9 05/14] drm/i915: Include DP HDR Metadata Infoframe SDP " Gwan-gyeong Mun
@ 2020-03-30 16:23 ` Gwan-gyeong Mun
  2020-03-30 16:23 ` [PATCH v9 07/14] drm/i915: Program DP SDPs with computed configs Gwan-gyeong Mun
                   ` (7 subsequent siblings)
  13 siblings, 0 replies; 15+ messages in thread
From: Gwan-gyeong Mun @ 2020-03-30 16:23 UTC (permalink / raw)
  To: intel-gfx
  Cc: linux-fbdev, jani.nikula, dri-devel, uma.shankar, laurent.pinchart

Dump out the DP VSC SDP in the normal crtc state dump

v3: Replace a structure name to drm_dp_vsc_sdp from intel_dp_vsc_sdp
    Use drm core's DP VSC SDP logging function

Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
---
 drivers/gpu/drm/i915/display/intel_display.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 6f4f17a2ec1f..37c2c1338816 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -12826,6 +12826,16 @@ intel_dump_infoframe(struct drm_i915_private *dev_priv,
 	hdmi_infoframe_log(KERN_DEBUG, dev_priv->drm.dev, frame);
 }
 
+static void
+intel_dump_dp_vsc_sdp(struct drm_i915_private *dev_priv,
+		      const struct drm_dp_vsc_sdp *vsc)
+{
+	if (!drm_debug_enabled(DRM_UT_KMS))
+		return;
+
+	drm_dp_vsc_sdp_log(KERN_DEBUG, dev_priv->drm.dev, vsc);
+}
+
 #define OUTPUT_TYPE(x) [INTEL_OUTPUT_ ## x] = #x
 
 static const char * const output_type_str[] = {
@@ -12989,6 +12999,9 @@ static void intel_dump_pipe_config(const struct intel_crtc_state *pipe_config,
 	if (pipe_config->infoframes.enable &
 	    intel_hdmi_infoframe_enable(HDMI_PACKET_TYPE_GAMUT_METADATA))
 		intel_dump_infoframe(dev_priv, &pipe_config->infoframes.drm);
+	if (pipe_config->infoframes.enable &
+	    intel_hdmi_infoframe_enable(DP_SDP_VSC))
+		intel_dump_dp_vsc_sdp(dev_priv, &pipe_config->infoframes.vsc);
 
 	drm_dbg_kms(&dev_priv->drm, "requested mode:\n");
 	drm_mode_debug_printmodeline(&pipe_config->hw.mode);
-- 
2.25.0

_______________________________________________
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dri-devel@lists.freedesktop.org
https://lists.freedesktop.org/mailman/listinfo/dri-devel

^ permalink raw reply related	[flat|nested] 15+ messages in thread

* [PATCH v9 07/14] drm/i915: Program DP SDPs with computed configs
  2020-03-30 16:23 [PATCH v9 00/14] In order to readout DP SDPs, refactors the handling of DP SDPs Gwan-gyeong Mun
                   ` (5 preceding siblings ...)
  2020-03-30 16:23 ` [PATCH v9 06/14] drm/i915: Include DP VSC " Gwan-gyeong Mun
@ 2020-03-30 16:23 ` Gwan-gyeong Mun
  2020-03-30 16:23 ` [PATCH v9 08/14] drm/i915: Add state readout for DP HDR Metadata Infoframe SDP Gwan-gyeong Mun
                   ` (6 subsequent siblings)
  13 siblings, 0 replies; 15+ messages in thread
From: Gwan-gyeong Mun @ 2020-03-30 16:23 UTC (permalink / raw)
  To: intel-gfx
  Cc: linux-fbdev, jani.nikula, dri-devel, uma.shankar, laurent.pinchart

In order to use computed config for DP SDPs (DP VSC SDP and DP HDR Metadata
Infoframe SDP), it replaces intel_dp_vsc_enable() function and
intel_dp_hdr_metadata_enable() function to intel_dp_set_infoframes()
function.
And it removes unused functions.

Before:
 intel_dp_vsc_enable() and intel_dp_hdr_metadata_enable() compute sdp
 configs and program sdp registers on enable callback of encoder.

After:
 It separates computing of sdp configs and programming of sdp register.
 The compute config callback of encoder calls computing sdp configs.
 The enable callback of encoder calls programming sdp register.

v3: Rebased
v5: Polish commit message [Uma]

Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
---
 drivers/gpu/drm/i915/display/intel_ddi.c |   3 +-
 drivers/gpu/drm/i915/display/intel_dp.c  | 226 -----------------------
 drivers/gpu/drm/i915/display/intel_dp.h  |   6 -
 3 files changed, 1 insertion(+), 234 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index 916a802af788..feaa12c6a494 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -3545,8 +3545,7 @@ static void intel_enable_ddi_dp(struct intel_encoder *encoder,
 
 	intel_edp_backlight_on(crtc_state, conn_state);
 	intel_psr_enable(intel_dp, crtc_state);
-	intel_dp_vsc_enable(intel_dp, crtc_state, conn_state);
-	intel_dp_hdr_metadata_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);
 
 	if (crtc_state->has_audio)
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index e34a6a75e97c..1f394d07d982 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -5156,232 +5156,6 @@ void intel_read_dp_sdp(struct intel_encoder *encoder,
 	}
 }
 
-static void
-intel_dp_setup_vsc_sdp(struct intel_dp *intel_dp,
-		       const struct intel_crtc_state *crtc_state,
-		       const struct drm_connector_state *conn_state)
-{
-	struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp);
-	struct dp_sdp vsc_sdp = {};
-
-	/* Prepare VSC Header for SU as per DP 1.4a spec, Table 2-119 */
-	vsc_sdp.sdp_header.HB0 = 0;
-	vsc_sdp.sdp_header.HB1 = 0x7;
-
-	/*
-	 * VSC SDP supporting 3D stereo, PSR2, and Pixel Encoding/
-	 * Colorimetry Format indication.
-	 */
-	vsc_sdp.sdp_header.HB2 = 0x5;
-
-	/*
-	 * VSC SDP supporting 3D stereo, + PSR2, + Pixel Encoding/
-	 * Colorimetry Format indication (HB2 = 05h).
-	 */
-	vsc_sdp.sdp_header.HB3 = 0x13;
-
-	/* DP 1.4a spec, Table 2-120 */
-	switch (crtc_state->output_format) {
-	case INTEL_OUTPUT_FORMAT_YCBCR444:
-		vsc_sdp.db[16] = 0x1 << 4; /* YCbCr 444 : DB16[7:4] = 1h */
-		break;
-	case INTEL_OUTPUT_FORMAT_YCBCR420:
-		vsc_sdp.db[16] = 0x3 << 4; /* YCbCr 420 : DB16[7:4] = 3h */
-		break;
-	case INTEL_OUTPUT_FORMAT_RGB:
-	default:
-		/* RGB: DB16[7:4] = 0h */
-		break;
-	}
-
-	switch (conn_state->colorspace) {
-	case DRM_MODE_COLORIMETRY_BT709_YCC:
-		vsc_sdp.db[16] |= 0x1;
-		break;
-	case DRM_MODE_COLORIMETRY_XVYCC_601:
-		vsc_sdp.db[16] |= 0x2;
-		break;
-	case DRM_MODE_COLORIMETRY_XVYCC_709:
-		vsc_sdp.db[16] |= 0x3;
-		break;
-	case DRM_MODE_COLORIMETRY_SYCC_601:
-		vsc_sdp.db[16] |= 0x4;
-		break;
-	case DRM_MODE_COLORIMETRY_OPYCC_601:
-		vsc_sdp.db[16] |= 0x5;
-		break;
-	case DRM_MODE_COLORIMETRY_BT2020_CYCC:
-	case DRM_MODE_COLORIMETRY_BT2020_RGB:
-		vsc_sdp.db[16] |= 0x6;
-		break;
-	case DRM_MODE_COLORIMETRY_BT2020_YCC:
-		vsc_sdp.db[16] |= 0x7;
-		break;
-	case DRM_MODE_COLORIMETRY_DCI_P3_RGB_D65:
-	case DRM_MODE_COLORIMETRY_DCI_P3_RGB_THEATER:
-		vsc_sdp.db[16] |= 0x4; /* DCI-P3 (SMPTE RP 431-2) */
-		break;
-	default:
-		/* sRGB (IEC 61966-2-1) / ITU-R BT.601: DB16[0:3] = 0h */
-
-		/* RGB->YCBCR color conversion uses the BT.709 color space. */
-		if (crtc_state->output_format == INTEL_OUTPUT_FORMAT_YCBCR420)
-			vsc_sdp.db[16] |= 0x1; /* 0x1, ITU-R BT.709 */
-		break;
-	}
-
-	/*
-	 * For pixel encoding formats YCbCr444, YCbCr422, YCbCr420, and Y Only,
-	 * the following Component Bit Depth values are defined:
-	 * 001b = 8bpc.
-	 * 010b = 10bpc.
-	 * 011b = 12bpc.
-	 * 100b = 16bpc.
-	 */
-	switch (crtc_state->pipe_bpp) {
-	case 24: /* 8bpc */
-		vsc_sdp.db[17] = 0x1;
-		break;
-	case 30: /* 10bpc */
-		vsc_sdp.db[17] = 0x2;
-		break;
-	case 36: /* 12bpc */
-		vsc_sdp.db[17] = 0x3;
-		break;
-	case 48: /* 16bpc */
-		vsc_sdp.db[17] = 0x4;
-		break;
-	default:
-		MISSING_CASE(crtc_state->pipe_bpp);
-		break;
-	}
-
-	/*
-	 * Dynamic Range (Bit 7)
-	 * 0 = VESA range, 1 = CTA range.
-	 * all YCbCr are always limited range
-	 */
-	vsc_sdp.db[17] |= 0x80;
-
-	/*
-	 * Content Type (Bits 2:0)
-	 * 000b = Not defined.
-	 * 001b = Graphics.
-	 * 010b = Photo.
-	 * 011b = Video.
-	 * 100b = Game
-	 * All other values are RESERVED.
-	 * Note: See CTA-861-G for the definition and expected
-	 * processing by a stream sink for the above contect types.
-	 */
-	vsc_sdp.db[18] = 0;
-
-	intel_dig_port->write_infoframe(&intel_dig_port->base,
-			crtc_state, DP_SDP_VSC, &vsc_sdp, sizeof(vsc_sdp));
-}
-
-static void
-intel_dp_setup_hdr_metadata_infoframe_sdp(struct intel_dp *intel_dp,
-					  const struct intel_crtc_state *crtc_state,
-					  const struct drm_connector_state *conn_state)
-{
-	struct intel_digital_port *intel_dig_port = dp_to_dig_port(intel_dp);
-	struct dp_sdp infoframe_sdp = {};
-	struct hdmi_drm_infoframe drm_infoframe = {};
-	const int infoframe_size = HDMI_INFOFRAME_HEADER_SIZE + HDMI_DRM_INFOFRAME_SIZE;
-	unsigned char buf[HDMI_INFOFRAME_HEADER_SIZE + HDMI_DRM_INFOFRAME_SIZE];
-	ssize_t len;
-	int ret;
-
-	ret = drm_hdmi_infoframe_set_hdr_metadata(&drm_infoframe, conn_state);
-	if (ret) {
-		DRM_DEBUG_KMS("couldn't set HDR metadata in infoframe\n");
-		return;
-	}
-
-	len = hdmi_drm_infoframe_pack_only(&drm_infoframe, buf, sizeof(buf));
-	if (len < 0) {
-		DRM_DEBUG_KMS("buffer size is smaller than hdr metadata infoframe\n");
-		return;
-	}
-
-	if (len != infoframe_size) {
-		DRM_DEBUG_KMS("wrong static hdr metadata size\n");
-		return;
-	}
-
-	/*
-	 * Set up the infoframe sdp packet for HDR static metadata.
-	 * Prepare VSC Header for SU as per DP 1.4a spec,
-	 * Table 2-100 and Table 2-101
-	 */
-
-	/* Packet ID, 00h for non-Audio INFOFRAME */
-	infoframe_sdp.sdp_header.HB0 = 0;
-	/*
-	 * Packet Type 80h + Non-audio INFOFRAME Type value
-	 * HDMI_INFOFRAME_TYPE_DRM: 0x87,
-	 */
-	infoframe_sdp.sdp_header.HB1 = drm_infoframe.type;
-	/*
-	 * Least Significant Eight Bits of (Data Byte Count – 1)
-	 * infoframe_size - 1,
-	 */
-	infoframe_sdp.sdp_header.HB2 = 0x1D;
-	/* INFOFRAME SDP Version Number */
-	infoframe_sdp.sdp_header.HB3 = (0x13 << 2);
-	/* CTA Header Byte 2 (INFOFRAME Version Number) */
-	infoframe_sdp.db[0] = drm_infoframe.version;
-	/* CTA Header Byte 3 (Length of INFOFRAME): HDMI_DRM_INFOFRAME_SIZE */
-	infoframe_sdp.db[1] = drm_infoframe.length;
-	/*
-	 * Copy HDMI_DRM_INFOFRAME_SIZE size from a buffer after
-	 * HDMI_INFOFRAME_HEADER_SIZE
-	 */
-	BUILD_BUG_ON(sizeof(infoframe_sdp.db) < HDMI_DRM_INFOFRAME_SIZE + 2);
-	memcpy(&infoframe_sdp.db[2], &buf[HDMI_INFOFRAME_HEADER_SIZE],
-	       HDMI_DRM_INFOFRAME_SIZE);
-
-	/*
-	 * Size of DP infoframe sdp packet for HDR static metadata is consist of
-	 * - DP SDP Header(struct dp_sdp_header): 4 bytes
-	 * - Two Data Blocks: 2 bytes
-	 *    CTA Header Byte2 (INFOFRAME Version Number)
-	 *    CTA Header Byte3 (Length of INFOFRAME)
-	 * - HDMI_DRM_INFOFRAME_SIZE: 26 bytes
-	 *
-	 * Prior to GEN11's GMP register size is identical to DP HDR static metadata
-	 * infoframe size. But GEN11+ has larger than that size, write_infoframe
-	 * will pad rest of the size.
-	 */
-	intel_dig_port->write_infoframe(&intel_dig_port->base, crtc_state,
-					HDMI_PACKET_TYPE_GAMUT_METADATA,
-					&infoframe_sdp,
-					sizeof(struct dp_sdp_header) + 2 + HDMI_DRM_INFOFRAME_SIZE);
-}
-
-void intel_dp_vsc_enable(struct intel_dp *intel_dp,
-			 const struct intel_crtc_state *crtc_state,
-			 const struct drm_connector_state *conn_state)
-{
-	if (!intel_dp_needs_vsc_sdp(crtc_state, conn_state))
-		return;
-
-	intel_dp_setup_vsc_sdp(intel_dp, crtc_state, conn_state);
-}
-
-void intel_dp_hdr_metadata_enable(struct intel_dp *intel_dp,
-				  const struct intel_crtc_state *crtc_state,
-				  const struct drm_connector_state *conn_state)
-{
-	if (!conn_state->hdr_output_metadata)
-		return;
-
-	intel_dp_setup_hdr_metadata_infoframe_sdp(intel_dp,
-						  crtc_state,
-						  conn_state);
-}
-
 static u8 intel_dp_autotest_link_training(struct intel_dp *intel_dp)
 {
 	int status = 0;
diff --git a/drivers/gpu/drm/i915/display/intel_dp.h b/drivers/gpu/drm/i915/display/intel_dp.h
index 4b0a1e9942f6..570bae0e84ca 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.h
+++ b/drivers/gpu/drm/i915/display/intel_dp.h
@@ -108,12 +108,6 @@ int intel_dp_link_required(int pixel_clock, int bpp);
 int intel_dp_max_data_rate(int max_link_clock, int max_lanes);
 bool intel_dp_needs_vsc_sdp(const struct intel_crtc_state *crtc_state,
 			    const struct drm_connector_state *conn_state);
-void intel_dp_vsc_enable(struct intel_dp *intel_dp,
-			 const struct intel_crtc_state *crtc_state,
-			 const struct drm_connector_state *conn_state);
-void intel_dp_hdr_metadata_enable(struct intel_dp *intel_dp,
-				  const struct intel_crtc_state *crtc_state,
-				  const struct drm_connector_state *conn_state);
 void intel_dp_set_infoframes(struct intel_encoder *encoder, bool enable,
 			     const struct intel_crtc_state *crtc_state,
 			     const struct drm_connector_state *conn_state);
-- 
2.25.0

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^ permalink raw reply related	[flat|nested] 15+ messages in thread

* [PATCH v9 08/14] drm/i915: Add state readout for DP HDR Metadata Infoframe SDP
  2020-03-30 16:23 [PATCH v9 00/14] In order to readout DP SDPs, refactors the handling of DP SDPs Gwan-gyeong Mun
                   ` (6 preceding siblings ...)
  2020-03-30 16:23 ` [PATCH v9 07/14] drm/i915: Program DP SDPs with computed configs Gwan-gyeong Mun
@ 2020-03-30 16:23 ` Gwan-gyeong Mun
  2020-03-30 16:23 ` [PATCH v9 09/14] drm/i915: Add state readout for DP VSC SDP Gwan-gyeong Mun
                   ` (5 subsequent siblings)
  13 siblings, 0 replies; 15+ messages in thread
From: Gwan-gyeong Mun @ 2020-03-30 16:23 UTC (permalink / raw)
  To: intel-gfx
  Cc: linux-fbdev, jani.nikula, dri-devel, uma.shankar, laurent.pinchart

Added state readout for DP HDR Metadata Infoframe SDP.

v9: Rebased

Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
---
 drivers/gpu/drm/i915/display/intel_ddi.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index feaa12c6a494..710e2e42a12a 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -4000,6 +4000,9 @@ void intel_ddi_get_config(struct intel_encoder *encoder,
 				    pipe_config->fec_enable);
 		}
 
+		pipe_config->infoframes.enable |=
+			intel_hdmi_infoframes_enabled(encoder, pipe_config);
+
 		break;
 	case TRANS_DDI_MODE_SELECT_DP_MST:
 		pipe_config->output_types |= BIT(INTEL_OUTPUT_DP_MST);
@@ -4011,6 +4014,9 @@ void intel_ddi_get_config(struct intel_encoder *encoder,
 					REG_FIELD_GET(TRANS_DDI_MST_TRANSPORT_SELECT_MASK, temp);
 
 		intel_dp_get_m_n(intel_crtc, pipe_config);
+
+		pipe_config->infoframes.enable |=
+			intel_hdmi_infoframes_enabled(encoder, pipe_config);
 		break;
 	default:
 		break;
@@ -4065,6 +4071,8 @@ void intel_ddi_get_config(struct intel_encoder *encoder,
 
 	if (INTEL_GEN(dev_priv) >= 11)
 		icl_get_trans_port_sync_config(pipe_config);
+
+	intel_read_dp_sdp(encoder, pipe_config, HDMI_PACKET_TYPE_GAMUT_METADATA);
 }
 
 static enum intel_output_type
-- 
2.25.0

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^ permalink raw reply related	[flat|nested] 15+ messages in thread

* [PATCH v9 09/14] drm/i915: Add state readout for DP VSC SDP
  2020-03-30 16:23 [PATCH v9 00/14] In order to readout DP SDPs, refactors the handling of DP SDPs Gwan-gyeong Mun
                   ` (7 preceding siblings ...)
  2020-03-30 16:23 ` [PATCH v9 08/14] drm/i915: Add state readout for DP HDR Metadata Infoframe SDP Gwan-gyeong Mun
@ 2020-03-30 16:23 ` Gwan-gyeong Mun
  2020-03-30 16:23 ` [PATCH v9 10/14] drm/i915: Fix enabled infoframe states of lspcon Gwan-gyeong Mun
                   ` (4 subsequent siblings)
  13 siblings, 0 replies; 15+ messages in thread
From: Gwan-gyeong Mun @ 2020-03-30 16:23 UTC (permalink / raw)
  To: intel-gfx
  Cc: linux-fbdev, jani.nikula, dri-devel, uma.shankar, laurent.pinchart

Added state readout for DP VSC SDP and enabled state validation
for DP VSC SDP.

v2: Minor style fix
v3: Replace a structure name to drm_dp_vsc_sdp from intel_dp_vsc_sdp
v4: Use struct drm_device logging macros

Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
---
 drivers/gpu/drm/i915/display/intel_ddi.c     |  1 +
 drivers/gpu/drm/i915/display/intel_display.c | 43 ++++++++++++++++++++
 2 files changed, 44 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index 710e2e42a12a..99b4944dfef2 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -4073,6 +4073,7 @@ void intel_ddi_get_config(struct intel_encoder *encoder,
 		icl_get_trans_port_sync_config(pipe_config);
 
 	intel_read_dp_sdp(encoder, pipe_config, HDMI_PACKET_TYPE_GAMUT_METADATA);
+	intel_read_dp_sdp(encoder, pipe_config, DP_SDP_VSC);
 }
 
 static enum intel_output_type
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index 37c2c1338816..9576f2c44d06 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -13449,6 +13449,13 @@ intel_compare_infoframe(const union hdmi_infoframe *a,
 	return memcmp(a, b, sizeof(*a)) == 0;
 }
 
+static bool
+intel_compare_dp_vsc_sdp(const struct drm_dp_vsc_sdp *a,
+			 const struct drm_dp_vsc_sdp *b)
+{
+	return memcmp(a, b, sizeof(*a)) == 0;
+}
+
 static void
 pipe_config_infoframe_mismatch(struct drm_i915_private *dev_priv,
 			       bool fastset, const char *name,
@@ -13474,6 +13481,31 @@ pipe_config_infoframe_mismatch(struct drm_i915_private *dev_priv,
 	}
 }
 
+static void
+pipe_config_dp_vsc_sdp_mismatch(struct drm_i915_private *dev_priv,
+				bool fastset, const char *name,
+				const struct drm_dp_vsc_sdp *a,
+				const struct drm_dp_vsc_sdp *b)
+{
+	if (fastset) {
+		if (!drm_debug_enabled(DRM_UT_KMS))
+			return;
+
+		drm_dbg_kms(&dev_priv->drm,
+			    "fastset mismatch in %s dp sdp\n", name);
+		drm_dbg_kms(&dev_priv->drm, "expected:\n");
+		drm_dp_vsc_sdp_log(KERN_DEBUG, dev_priv->drm.dev, a);
+		drm_dbg_kms(&dev_priv->drm, "found:\n");
+		drm_dp_vsc_sdp_log(KERN_DEBUG, dev_priv->drm.dev, b);
+	} else {
+		drm_err(&dev_priv->drm, "mismatch in %s dp sdp\n", name);
+		drm_err(&dev_priv->drm, "expected:\n");
+		drm_dp_vsc_sdp_log(KERN_ERR, dev_priv->drm.dev, a);
+		drm_err(&dev_priv->drm, "found:\n");
+		drm_dp_vsc_sdp_log(KERN_ERR, dev_priv->drm.dev, b);
+	}
+}
+
 static void __printf(4, 5)
 pipe_config_mismatch(bool fastset, const struct intel_crtc *crtc,
 		     const char *name, const char *format, ...)
@@ -13675,6 +13707,16 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config,
 	} \
 } while (0)
 
+#define PIPE_CONF_CHECK_DP_VSC_SDP(name) do { \
+	if (!intel_compare_dp_vsc_sdp(&current_config->infoframes.name, \
+				      &pipe_config->infoframes.name)) { \
+		pipe_config_dp_vsc_sdp_mismatch(dev_priv, fastset, __stringify(name), \
+						&current_config->infoframes.name, \
+						&pipe_config->infoframes.name); \
+		ret = false; \
+	} \
+} while (0)
+
 #define PIPE_CONF_CHECK_COLOR_LUT(name1, name2, bit_precision) do { \
 	if (current_config->name1 != pipe_config->name1) { \
 		pipe_config_mismatch(fastset, crtc, __stringify(name1), \
@@ -13850,6 +13892,7 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config,
 	PIPE_CONF_CHECK_INFOFRAME(spd);
 	PIPE_CONF_CHECK_INFOFRAME(hdmi);
 	PIPE_CONF_CHECK_INFOFRAME(drm);
+	PIPE_CONF_CHECK_DP_VSC_SDP(vsc);
 
 	PIPE_CONF_CHECK_X(sync_mode_slaves_mask);
 	PIPE_CONF_CHECK_I(master_transcoder);
-- 
2.25.0

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^ permalink raw reply related	[flat|nested] 15+ messages in thread

* [PATCH v9 10/14] drm/i915: Fix enabled infoframe states of lspcon
  2020-03-30 16:23 [PATCH v9 00/14] In order to readout DP SDPs, refactors the handling of DP SDPs Gwan-gyeong Mun
                   ` (8 preceding siblings ...)
  2020-03-30 16:23 ` [PATCH v9 09/14] drm/i915: Add state readout for DP VSC SDP Gwan-gyeong Mun
@ 2020-03-30 16:23 ` Gwan-gyeong Mun
  2020-03-30 16:23 ` [PATCH v9 11/14] drm/i915: Program DP SDPs on pipe updates Gwan-gyeong Mun
                   ` (3 subsequent siblings)
  13 siblings, 0 replies; 15+ messages in thread
From: Gwan-gyeong Mun @ 2020-03-30 16:23 UTC (permalink / raw)
  To: intel-gfx
  Cc: linux-fbdev, jani.nikula, dri-devel, uma.shankar, laurent.pinchart

Compared to implementation of DP and HDMI's encoder->infoframes_enabled,
the lspcon's implementation returns its active state. (we expect enabled
infoframe states of HW.) It leads to pipe state mismatch error
when ddi_get_config is called.

Because the current implementation of lspcon is not ready to support
readout infoframes, we need to return 0 here.

In order to support readout to lspcon, we need to implement read_infoframe
and infoframes_enabled. And set_infoframes also have to set an appropriate
bit on crtc_state->infoframes.enable

Cc: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
---
 drivers/gpu/drm/i915/display/intel_lspcon.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_lspcon.c b/drivers/gpu/drm/i915/display/intel_lspcon.c
index d807c5648c87..6ff7b226f0a1 100644
--- a/drivers/gpu/drm/i915/display/intel_lspcon.c
+++ b/drivers/gpu/drm/i915/display/intel_lspcon.c
@@ -522,7 +522,7 @@ u32 lspcon_infoframes_enabled(struct intel_encoder *encoder,
 			      const struct intel_crtc_state *pipe_config)
 {
 	/* FIXME actually read this from the hw */
-	return enc_to_intel_lspcon(encoder)->active;
+	return 0;
 }
 
 void lspcon_resume(struct intel_lspcon *lspcon)
-- 
2.25.0

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^ permalink raw reply related	[flat|nested] 15+ messages in thread

* [PATCH v9 11/14] drm/i915: Program DP SDPs on pipe updates
  2020-03-30 16:23 [PATCH v9 00/14] In order to readout DP SDPs, refactors the handling of DP SDPs Gwan-gyeong Mun
                   ` (9 preceding siblings ...)
  2020-03-30 16:23 ` [PATCH v9 10/14] drm/i915: Fix enabled infoframe states of lspcon Gwan-gyeong Mun
@ 2020-03-30 16:23 ` Gwan-gyeong Mun
  2020-03-30 16:23 ` [PATCH v9 12/14] drm/i915: Stop sending DP SDPs on ddi disable Gwan-gyeong Mun
                   ` (2 subsequent siblings)
  13 siblings, 0 replies; 15+ messages in thread
From: Gwan-gyeong Mun @ 2020-03-30 16:23 UTC (permalink / raw)
  To: intel-gfx
  Cc: linux-fbdev, jani.nikula, dri-devel, uma.shankar, laurent.pinchart

Call intel_dp_set_infoframes() function on pipe updates to make sure
that we send VSC SDP and HDR Metadata Infoframe SDP (when applicable)
on fastsets.

Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
---
 drivers/gpu/drm/i915/display/intel_ddi.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index 99b4944dfef2..cee3d2b5caf5 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -3716,6 +3716,7 @@ 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_dp_set_infoframes(encoder, true, crtc_state, conn_state);
 	intel_edp_drrs_enable(intel_dp, crtc_state);
 
 	intel_panel_update_backlight(encoder, crtc_state, conn_state);
-- 
2.25.0

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^ permalink raw reply related	[flat|nested] 15+ messages in thread

* [PATCH v9 12/14] drm/i915: Stop sending DP SDPs on ddi disable
  2020-03-30 16:23 [PATCH v9 00/14] In order to readout DP SDPs, refactors the handling of DP SDPs Gwan-gyeong Mun
                   ` (10 preceding siblings ...)
  2020-03-30 16:23 ` [PATCH v9 11/14] drm/i915: Program DP SDPs on pipe updates Gwan-gyeong Mun
@ 2020-03-30 16:23 ` Gwan-gyeong Mun
  2020-03-30 16:23 ` [PATCH v9 13/14] drm/i915/dp: Add compute routine for DP PSR VSC SDP Gwan-gyeong Mun
  2020-03-30 16:23 ` [PATCH v9 14/14] drm/i915/psr: Use new DP VSC SDP compute routine on PSR Gwan-gyeong Mun
  13 siblings, 0 replies; 15+ messages in thread
From: Gwan-gyeong Mun @ 2020-03-30 16:23 UTC (permalink / raw)
  To: intel-gfx
  Cc: linux-fbdev, jani.nikula, dri-devel, uma.shankar, laurent.pinchart

Call intel_dp_set_infoframes(false) function on intel_ddi_post_disable_dp()
to make sure not to send VSC SDP and HDR Metadata Infoframe SDP.

v5: Polish commit message [Uma]

Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
---
 drivers/gpu/drm/i915/display/intel_ddi.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index cee3d2b5caf5..83bee335372b 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -3375,6 +3375,8 @@ static void intel_ddi_post_disable_dp(struct intel_encoder *encoder,
 					  INTEL_OUTPUT_DP_MST);
 	enum phy phy = intel_port_to_phy(dev_priv, encoder->port);
 
+	intel_dp_set_infoframes(encoder, false, old_crtc_state, old_conn_state);
+
 	/*
 	 * Power down sink before disabling the port, otherwise we end
 	 * up getting interrupts from the sink on detecting link loss.
-- 
2.25.0

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^ permalink raw reply related	[flat|nested] 15+ messages in thread

* [PATCH v9 13/14] drm/i915/dp: Add compute routine for DP PSR VSC SDP
  2020-03-30 16:23 [PATCH v9 00/14] In order to readout DP SDPs, refactors the handling of DP SDPs Gwan-gyeong Mun
                   ` (11 preceding siblings ...)
  2020-03-30 16:23 ` [PATCH v9 12/14] drm/i915: Stop sending DP SDPs on ddi disable Gwan-gyeong Mun
@ 2020-03-30 16:23 ` Gwan-gyeong Mun
  2020-03-30 16:23 ` [PATCH v9 14/14] drm/i915/psr: Use new DP VSC SDP compute routine on PSR Gwan-gyeong Mun
  13 siblings, 0 replies; 15+ messages in thread
From: Gwan-gyeong Mun @ 2020-03-30 16:23 UTC (permalink / raw)
  To: intel-gfx
  Cc: linux-fbdev, jani.nikula, dri-devel, uma.shankar, laurent.pinchart

In order to use a common VSC SDP Colorimetry calculating code on PSR,
it adds a compute routine for PSR VSC SDP.
As PSR routine can not use infoframes.vsc of crtc state, it also adds new
writing of DP SDPs (Secondary Data Packet) for PSR.
PSR routine has its own scenario and timings of writing a VSC SDP.

v3: Replace a structure name to drm_dp_vsc_sdp from intel_dp_vsc_sdp
v4: Use struct drm_device logging macros

Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp.c | 54 +++++++++++++++++++++++++
 drivers/gpu/drm/i915/display/intel_dp.h |  8 ++++
 2 files changed, 62 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 1f394d07d982..1158c7962109 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -2496,6 +2496,42 @@ static void intel_dp_compute_vsc_sdp(struct intel_dp *intel_dp,
 					 &crtc_state->infoframes.vsc);
 }
 
+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,
+				  struct drm_dp_vsc_sdp *vsc)
+{
+	struct drm_i915_private *dev_priv = dp_to_i915(intel_dp);
+
+	vsc->sdp_type = DP_SDP_VSC;
+
+	if (dev_priv->psr.psr2_enabled) {
+		if (dev_priv->psr.colorimetry_support &&
+		    intel_dp_needs_vsc_sdp(crtc_state, conn_state)) {
+			/* [PSR2, +Colorimetry] */
+			intel_dp_compute_vsc_colorimetry(crtc_state, conn_state,
+							 vsc);
+		} else {
+			/*
+			 * [PSR2, -Colorimetry]
+			 * Prepare VSC Header for SU as per eDP 1.4 spec, Table 6-11
+			 * 3D stereo + PSR/PSR2 + Y-coordinate.
+			 */
+			vsc->revision = 0x4;
+			vsc->length = 0xe;
+		}
+	} else {
+		/*
+		 * [PSR1]
+		 * Prepare VSC Header for SU as per DP 1.4 spec, Table 2-118
+		 * VSC SDP supporting 3D stereo + PSR (applies to eDP v1.3 or
+		 * higher).
+		 */
+		vsc->revision = 0x2;
+		vsc->length = 0x8;
+	}
+}
+
 static void
 intel_dp_compute_hdr_metadata_infoframe_sdp(struct intel_dp *intel_dp,
 					    struct intel_crtc_state *crtc_state,
@@ -4933,6 +4969,24 @@ static void intel_write_dp_sdp(struct intel_encoder *encoder,
 	intel_dig_port->write_infoframe(encoder, crtc_state, type, &sdp, len);
 }
 
+void intel_write_dp_vsc_sdp(struct intel_encoder *encoder,
+			    const struct intel_crtc_state *crtc_state,
+			    struct drm_dp_vsc_sdp *vsc)
+{
+	struct intel_digital_port *intel_dig_port = enc_to_dig_port(encoder);
+	struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
+	struct dp_sdp sdp = {};
+	ssize_t len;
+
+	len = intel_dp_vsc_sdp_pack(vsc, &sdp, sizeof(sdp));
+
+	if (drm_WARN_ON(&dev_priv->drm, len < 0))
+		return;
+
+	intel_dig_port->write_infoframe(encoder, crtc_state, DP_SDP_VSC,
+					&sdp, len);
+}
+
 void intel_dp_set_infoframes(struct intel_encoder *encoder,
 			     bool enable,
 			     const struct intel_crtc_state *crtc_state,
diff --git a/drivers/gpu/drm/i915/display/intel_dp.h b/drivers/gpu/drm/i915/display/intel_dp.h
index 570bae0e84ca..2f333aec1805 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.h
+++ b/drivers/gpu/drm/i915/display/intel_dp.h
@@ -16,6 +16,7 @@ struct drm_connector_state;
 struct drm_encoder;
 struct drm_i915_private;
 struct drm_modeset_acquire_ctx;
+struct drm_dp_vsc_sdp;
 struct intel_connector;
 struct intel_crtc_state;
 struct intel_digital_port;
@@ -108,6 +109,13 @@ int intel_dp_link_required(int pixel_clock, int bpp);
 int intel_dp_max_data_rate(int max_link_clock, int max_lanes);
 bool intel_dp_needs_vsc_sdp(const struct intel_crtc_state *crtc_state,
 			    const struct drm_connector_state *conn_state);
+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,
+				  struct drm_dp_vsc_sdp *vsc);
+void intel_write_dp_vsc_sdp(struct intel_encoder *encoder,
+			    const struct intel_crtc_state *crtc_state,
+			    struct drm_dp_vsc_sdp *vsc);
 void intel_dp_set_infoframes(struct intel_encoder *encoder, bool enable,
 			     const struct intel_crtc_state *crtc_state,
 			     const struct drm_connector_state *conn_state);
-- 
2.25.0

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^ permalink raw reply related	[flat|nested] 15+ messages in thread

* [PATCH v9 14/14] drm/i915/psr: Use new DP VSC SDP compute routine on PSR
  2020-03-30 16:23 [PATCH v9 00/14] In order to readout DP SDPs, refactors the handling of DP SDPs Gwan-gyeong Mun
                   ` (12 preceding siblings ...)
  2020-03-30 16:23 ` [PATCH v9 13/14] drm/i915/dp: Add compute routine for DP PSR VSC SDP Gwan-gyeong Mun
@ 2020-03-30 16:23 ` Gwan-gyeong Mun
  13 siblings, 0 replies; 15+ messages in thread
From: Gwan-gyeong Mun @ 2020-03-30 16:23 UTC (permalink / raw)
  To: intel-gfx
  Cc: linux-fbdev, jani.nikula, dri-devel, uma.shankar, laurent.pinchart

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
v4: Rebased
v8: Rebased

Signed-off-by: Gwan-gyeong Mun <gwan-gyeong.mun@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@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 83bee335372b..eca7cf09aa93 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -3546,7 +3546,7 @@ 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);
 
@@ -3717,7 +3717,7 @@ 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 a0569fdfeb16..9e82d706507b 100644
--- a/drivers/gpu/drm/i915/display/intel_psr.c
+++ b/drivers/gpu/drm/i915/display/intel_psr.c
@@ -357,39 +357,6 @@ 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);
@@ -880,9 +847,12 @@ 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;
 
 	drm_WARN_ON(&dev_priv->drm, dev_priv->psr.enabled);
@@ -921,7 +891,9 @@ static void intel_psr_enable_locked(struct drm_i915_private *dev_priv,
 
 	drm_dbg_kms(&dev_priv->drm, "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;
@@ -933,11 +905,13 @@ 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);
 
@@ -958,7 +932,7 @@ 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);
@@ -1091,13 +1065,15 @@ 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;
@@ -1134,7 +1110,7 @@ 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 274fc6bb6221..b4515186d5f4 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 2ee2a2b301ef..04e704e2b191 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -510,6 +510,7 @@ struct i915_psr {
 	u32 dc3co_exit_delay;
 	struct delayed_work dc3co_work;
 	bool force_mode_changed;
+	struct drm_dp_vsc_sdp vsc;
 };
 
 #define QUIRK_LVDS_SSC_DISABLE (1<<1)
-- 
2.25.0

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^ permalink raw reply related	[flat|nested] 15+ messages in thread

end of thread, other threads:[~2020-03-30 16:23 UTC | newest]

Thread overview: 15+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-03-30 16:23 [PATCH v9 00/14] In order to readout DP SDPs, refactors the handling of DP SDPs Gwan-gyeong Mun
2020-03-30 16:23 ` [PATCH v9 01/14] video/hdmi: Add Unpack only function for DRM infoframe Gwan-gyeong Mun
2020-03-30 16:23 ` [PATCH v9 02/14] drm/i915/dp: Read out DP SDPs Gwan-gyeong Mun
2020-03-30 16:23 ` [PATCH v9 03/14] drm: Add logging function for DP VSC SDP Gwan-gyeong Mun
2020-03-30 16:23 ` [PATCH v9 04/14] drm/i915: Include HDMI DRM infoframe in the crtc state dump Gwan-gyeong Mun
2020-03-30 16:23 ` [PATCH v9 05/14] drm/i915: Include DP HDR Metadata Infoframe SDP " Gwan-gyeong Mun
2020-03-30 16:23 ` [PATCH v9 06/14] drm/i915: Include DP VSC " Gwan-gyeong Mun
2020-03-30 16:23 ` [PATCH v9 07/14] drm/i915: Program DP SDPs with computed configs Gwan-gyeong Mun
2020-03-30 16:23 ` [PATCH v9 08/14] drm/i915: Add state readout for DP HDR Metadata Infoframe SDP Gwan-gyeong Mun
2020-03-30 16:23 ` [PATCH v9 09/14] drm/i915: Add state readout for DP VSC SDP Gwan-gyeong Mun
2020-03-30 16:23 ` [PATCH v9 10/14] drm/i915: Fix enabled infoframe states of lspcon Gwan-gyeong Mun
2020-03-30 16:23 ` [PATCH v9 11/14] drm/i915: Program DP SDPs on pipe updates Gwan-gyeong Mun
2020-03-30 16:23 ` [PATCH v9 12/14] drm/i915: Stop sending DP SDPs on ddi disable Gwan-gyeong Mun
2020-03-30 16:23 ` [PATCH v9 13/14] drm/i915/dp: Add compute routine for DP PSR VSC SDP Gwan-gyeong Mun
2020-03-30 16:23 ` [PATCH v9 14/14] drm/i915/psr: Use new DP VSC SDP compute routine on PSR Gwan-gyeong Mun

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