[v17,1/9] drm/dp: Add support to indicate if sink supports AS SDP
Mitul Golani
mitulkumar.ajitkumar.golani at intel.com
Thu Mar 21 15:38:13 UTC 2024
Add an API that indicates support for Adaptive Sync SDP in
the sink, which can be utilized by the rest of the DP programming.
--v1:
- Format commit message properly.
Signed-off-by: Mitul Golani <mitulkumar.ajitkumar.golani at intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal at intel.com>
---
drivers/gpu/drm/display/drm_dp_helper.c | 25 +++++++++++++++++++++++++
include/drm/display/drm_dp_helper.h | 1 +
2 files changed, 26 insertions(+)
diff --git a/drivers/gpu/drm/display/drm_dp_helper.c b/drivers/gpu/drm/display/drm_dp_helper.c
index 266826eac4a7..f2fabb673aa4 100644
--- a/drivers/gpu/drm/display/drm_dp_helper.c
+++ b/drivers/gpu/drm/display/drm_dp_helper.c
@@ -2948,6 +2948,31 @@ void drm_dp_vsc_sdp_log(struct drm_printer *p, const struct drm_dp_vsc_sdp *vsc)
}
EXPORT_SYMBOL(drm_dp_vsc_sdp_log);
+/**
+ * drm_dp_as_sdp_supported() - check if adaptive sync sdp is supported
+ * @aux: DisplayPort AUX channel
+ * @dpcd: DisplayPort configuration data
+ *
+ * Returns true if adaptive sync sdp is supported, else returns false
+ */
+bool drm_dp_as_sdp_supported(struct drm_dp_aux *aux, const u8 dpcd[DP_RECEIVER_CAP_SIZE])
+{
+ u8 rx_feature;
+
+ if (dpcd[DP_DPCD_REV] < DP_DPCD_REV_13)
+ return false;
+
+ if (drm_dp_dpcd_readb(aux, DP_DPRX_FEATURE_ENUMERATION_LIST_CONT_1,
+ &rx_feature) != 1) {
+ drm_dbg_dp(aux->drm_dev,
+ "Failed to read DP_DPRX_FEATURE_ENUMERATION_LIST_CONT_1\n");
+ return false;
+ }
+
+ return (rx_feature & DP_ADAPTIVE_SYNC_SDP_SUPPORTED);
+}
+EXPORT_SYMBOL(drm_dp_as_sdp_supported);
+
/**
* drm_dp_vsc_sdp_supported() - check if vsc sdp is supported
* @aux: DisplayPort AUX channel
diff --git a/include/drm/display/drm_dp_helper.h b/include/drm/display/drm_dp_helper.h
index a62fcd051d4d..7df19acdc790 100644
--- a/include/drm/display/drm_dp_helper.h
+++ b/include/drm/display/drm_dp_helper.h
@@ -101,6 +101,7 @@ struct drm_dp_vsc_sdp {
void drm_dp_vsc_sdp_log(struct drm_printer *p, const struct drm_dp_vsc_sdp *vsc);
bool drm_dp_vsc_sdp_supported(struct drm_dp_aux *aux, const u8 dpcd[DP_RECEIVER_CAP_SIZE]);
+bool drm_dp_as_sdp_supported(struct drm_dp_aux *aux, const u8 dpcd[DP_RECEIVER_CAP_SIZE]);
int drm_dp_psr_setup_time(const u8 psr_cap[EDP_PSR_RECEIVER_CAP_SIZE]);
>From patchwork Mon Mar 11 09:42:31 2024
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Subject: [v17,2/9] drm: Add Adaptive Sync SDP logging
From: Mitul Golani <mitulkumar.ajitkumar.golani at intel.com>
X-Patchwork-Id: 582294
Message-Id: <20240311094238.3320888-3-mitulkumar.ajitkumar.golani at intel.com>
To: intel-gfx at lists.freedesktop.org
Cc: ankit.k.nautiyal at intel.com, dri-devel at lists.freedesktop.org,
jani.nikula at intel.com, Mitul Golani <mitulkumar.ajitkumar.golani at intel.com>
Date: Mon, 11 Mar 2024 15:12:31 +0530
Add structure representing Adaptive Sync Secondary Data Packet (AS SDP).
Also, add Adaptive Sync SDP logging in drm_dp_helper.c to facilitate
debugging.
--v2:
- Update logging. [Jani, Ankit]
- Use 'as_sdp' instead of 'async' [Ankit]
- Correct define placeholders to where they are actually used. [Jani]
- Update members in 'as_sdp' structure to make it uniform. [Jani]
--v3:
- Added changes to dri-devel mailing list. No code changes.
--v4:
- Instead of directly using operation mode, use an enum to accommodate
all operation modes (Ankit).
--v5:
Nit-pick changes to commit message.
--v6:
- Add correct place holder and name change for AS_SDP_OP_MODE.
- Separate i915 changes from drm changes.
- Remove extra lines.
--v7:
- Add drm/i915/display in subject line.
Signed-off-by: Mitul Golani <mitulkumar.ajitkumar.golani at intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal at intel.com>
---
drivers/gpu/drm/display/drm_dp_helper.c | 12 ++++++++++
include/drm/display/drm_dp.h | 11 ++++++++++
include/drm/display/drm_dp_helper.h | 29 +++++++++++++++++++++++++
3 files changed, 52 insertions(+)
diff --git a/drivers/gpu/drm/display/drm_dp_helper.c b/drivers/gpu/drm/display/drm_dp_helper.c
index f2fabb673aa4..f880bc7b2153 100644
--- a/drivers/gpu/drm/display/drm_dp_helper.c
+++ b/drivers/gpu/drm/display/drm_dp_helper.c
@@ -2948,6 +2948,18 @@ void drm_dp_vsc_sdp_log(struct drm_printer *p, const struct drm_dp_vsc_sdp *vsc)
}
EXPORT_SYMBOL(drm_dp_vsc_sdp_log);
+void drm_dp_as_sdp_log(struct drm_printer *p, const struct drm_dp_as_sdp *as_sdp)
+{
+ drm_printf(p, "DP SDP: AS_SDP, revision %u, length %u\n",
+ as_sdp->revision, as_sdp->length);
+ drm_printf(p, " vtotal: %d\n", as_sdp->vtotal);
+ drm_printf(p, " target_rr: %d\n", as_sdp->target_rr);
+ drm_printf(p, " duration_incr_ms: %d\n", as_sdp->duration_incr_ms);
+ drm_printf(p, " duration_decr_ms: %d\n", as_sdp->duration_decr_ms);
+ drm_printf(p, " operation_mode: %d\n", as_sdp->mode);
+}
+EXPORT_SYMBOL(drm_dp_as_sdp_log);
+
/**
* drm_dp_as_sdp_supported() - check if adaptive sync sdp is supported
* @aux: DisplayPort AUX channel
diff --git a/include/drm/display/drm_dp.h b/include/drm/display/drm_dp.h
index 4891bd916d26..0b032faa8cf2 100644
--- a/include/drm/display/drm_dp.h
+++ b/include/drm/display/drm_dp.h
@@ -1150,6 +1150,8 @@
#define DP_DPRX_FEATURE_ENUMERATION_LIST_CONT_1 0x2214 /* 2.0 E11 */
# define DP_ADAPTIVE_SYNC_SDP_SUPPORTED (1 << 0)
+# define DP_ADAPTIVE_SYNC_SDP_OPERATION_MODE GENMASK(1, 0)
+# define DP_ADAPTIVE_SYNC_SDP_LENGTH GENMASK(5, 0)
# define DP_AS_SDP_FIRST_HALF_LINE_OR_3840_PIXEL_CYCLE_WINDOW_NOT_SUPPORTED (1 << 1)
# define DP_VSC_EXT_SDP_FRAMEWORK_VERSION_1_SUPPORTED (1 << 4)
@@ -1639,10 +1641,12 @@ enum drm_dp_phy {
#define DP_SDP_AUDIO_COPYMANAGEMENT 0x05 /* DP 1.2 */
#define DP_SDP_ISRC 0x06 /* DP 1.2 */
#define DP_SDP_VSC 0x07 /* DP 1.2 */
+#define DP_SDP_ADAPTIVE_SYNC 0x22 /* DP 1.4 */
#define DP_SDP_CAMERA_GENERIC(i) (0x08 + (i)) /* 0-7, DP 1.3 */
#define DP_SDP_PPS 0x10 /* DP 1.4 */
#define DP_SDP_VSC_EXT_VESA 0x20 /* DP 1.4 */
#define DP_SDP_VSC_EXT_CEA 0x21 /* DP 1.4 */
+
/* 0x80+ CEA-861 infoframe types */
#define DP_SDP_AUDIO_INFOFRAME_HB2 0x1b
@@ -1798,4 +1802,11 @@ enum dp_content_type {
DP_CONTENT_TYPE_GAME = 0x04,
};
+enum operation_mode {
+ DP_AS_SDP_AVT_DYNAMIC_VTOTAL = 0x00,
+ DP_AS_SDP_AVT_FIXED_VTOTAL = 0x01,
+ DP_AS_SDP_FAVT_TRR_NOT_REACHED = 0x02,
+ DP_AS_SDP_FAVT_TRR_REACHED = 0x03
+};
+
#endif /* _DRM_DP_H_ */
diff --git a/include/drm/display/drm_dp_helper.h b/include/drm/display/drm_dp_helper.h
index 7df19acdc790..10147ae96326 100644
--- a/include/drm/display/drm_dp_helper.h
+++ b/include/drm/display/drm_dp_helper.h
@@ -98,6 +98,35 @@ struct drm_dp_vsc_sdp {
enum dp_content_type content_type;
};
+/**
+ * struct drm_dp_as_sdp - drm DP Adaptive Sync SDP
+ *
+ * This structure represents a DP AS SDP of drm
+ * It is based on DP 2.1 spec [Table 2-126: Adaptive-Sync SDP Header Bytes] and
+ * [Table 2-127: Adaptive-Sync SDP Payload for DB0 through DB8]
+ *
+ * @sdp_type: Secondary-data packet type
+ * @revision: Revision Number
+ * @length: Number of valid data bytes
+ * @vtotal: Minimum Vertical Vtotal
+ * @target_rr: Target Refresh
+ * @duration_incr_ms: Successive frame duration increase
+ * @duration_decr_ms: Successive frame duration decrease
+ * @operation_mode: Adaptive Sync Operation Mode
+ */
+struct drm_dp_as_sdp {
+ unsigned char sdp_type;
+ unsigned char revision;
+ unsigned char length;
+ int vtotal;
+ int target_rr;
+ int duration_incr_ms;
+ int duration_decr_ms;
+ enum operation_mode mode;
+};
+
+void drm_dp_as_sdp_log(struct drm_printer *p,
+ const struct drm_dp_as_sdp *as_sdp);
void drm_dp_vsc_sdp_log(struct drm_printer *p, const struct drm_dp_vsc_sdp *vsc);
bool drm_dp_vsc_sdp_supported(struct drm_dp_aux *aux, const u8 dpcd[DP_RECEIVER_CAP_SIZE]);
>From patchwork Tue Mar 19 06:53:46 2024
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Subject: [v18,3/9] drm/i915/display: Add crtc state dump for Adaptive Sync SDP
From: Mitul Golani <mitulkumar.ajitkumar.golani at intel.com>
X-Patchwork-Id: 583335
Message-Id: <20240319065346.3764331-1-mitulkumar.ajitkumar.golani at intel.com>
To: intel-gfx at lists.freedesktop.org
Cc: Mitul Golani <mitulkumar.ajitkumar.golani at intel.com>,
Ankit Nautiyal <ankit.k.nautiyal at intel.com>
Date: Tue, 19 Mar 2024 12:23:46 +0530
Add crtc state dump for Adaptive Sync SDP to know which
crtc specifically caused the failure.
--v1:
- Rebase Patches to latest.
Signed-off-by: Mitul Golani <mitulkumar.ajitkumar.golani at intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal at intel.com>
---
drivers/gpu/drm/i915/display/intel_crtc_state_dump.c | 3 +++
drivers/gpu/drm/i915/display/intel_display_types.h | 1 +
2 files changed, 4 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c b/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c
index cd78c200d483..ccaa4cb2809b 100644
--- a/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c
+++ b/drivers/gpu/drm/i915/display/intel_crtc_state_dump.c
@@ -286,6 +286,9 @@ void intel_crtc_state_dump(const struct intel_crtc_state *pipe_config,
if (pipe_config->infoframes.enable &
intel_hdmi_infoframe_enable(DP_SDP_VSC))
drm_dp_vsc_sdp_log(&p, &pipe_config->infoframes.vsc);
+ if (pipe_config->infoframes.enable &
+ intel_hdmi_infoframe_enable(DP_SDP_ADAPTIVE_SYNC))
+ drm_dp_as_sdp_log(&p, &pipe_config->infoframes.as_sdp);
if (pipe_config->has_audio)
intel_dump_buffer("ELD: ", pipe_config->eld,
diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
index 8b9860cefaae..36fcded7564a 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -1346,6 +1346,7 @@ struct intel_crtc_state {
union hdmi_infoframe hdmi;
union hdmi_infoframe drm;
struct drm_dp_vsc_sdp vsc;
+ struct drm_dp_as_sdp as_sdp;
} infoframes;
u8 eld[MAX_ELD_BYTES];
>From patchwork Mon Mar 11 09:42:33 2024
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Subject: [v17,4/9] drm/i915/dp: Add Read/Write support for Adaptive Sync SDP
From: Mitul Golani <mitulkumar.ajitkumar.golani at intel.com>
X-Patchwork-Id: 582296
Message-Id: <20240311094238.3320888-5-mitulkumar.ajitkumar.golani at intel.com>
To: intel-gfx at lists.freedesktop.org
Cc: ankit.k.nautiyal at intel.com, dri-devel at lists.freedesktop.org,
jani.nikula at intel.com, Mitul Golani <mitulkumar.ajitkumar.golani at intel.com>
Date: Mon, 11 Mar 2024 15:12:33 +0530
Add the necessary structures and functions to handle reading and
unpacking Adaptive Sync Secondary Data Packets. Also add support
to write and pack AS SDP.
--v2:
- Correct use of REG_BIT and REG_GENMASK. [Jani]
- Use as_sdp instead of async. [Jani]
- Remove unrelated comments and changes. [Jani]
- Correct code indent. [Jani]
--v3:
- Update definition names for AS SDP which are starting from
HSW, as these defines are applicable for ADLP+.(Ankit)
--v4:
- Remove as_sdp_mode from crtc_state.
- Drop metadata keyword.
- For consistency, update ADL_ prefix or post fix as required.
--v5:
- Check if AS_SDP bit is set in crtc_state->infoframes.enable. If not
return.
- Check for HAS_AS_SDP() before setting VIDEO_DIP_ENABLE_AS_ADL mask.
--v6:
- Rename intel_read_dp_infoframe_as_sdp to intel_read_dp_as_sdp.
--v7:
- Add read back for length and vtotal correction.
--v8:
- Use as_sdp->target_rr & 0xFF.
- Shift by 8 instead of 32, and drop casting to u64.
- Remove changes which are does not belong to this patch.
Signed-off-by: Mitul Golani <mitulkumar.ajitkumar.golani at intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal at intel.com>
---
.../drm/i915/display/intel_display_device.h | 1 +
drivers/gpu/drm/i915/display/intel_dp.c | 92 +++++++++++++++++++
drivers/gpu/drm/i915/display/intel_hdmi.c | 14 ++-
drivers/gpu/drm/i915/i915_reg.h | 8 ++
4 files changed, 114 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display_device.h b/drivers/gpu/drm/i915/display/intel_display_device.h
index fe4268813786..6399fbc6c738 100644
--- a/drivers/gpu/drm/i915/display/intel_display_device.h
+++ b/drivers/gpu/drm/i915/display/intel_display_device.h
@@ -68,6 +68,7 @@ struct drm_printer;
#define HAS_TRANSCODER(i915, trans) ((DISPLAY_RUNTIME_INFO(i915)->cpu_transcoder_mask & \
BIT(trans)) != 0)
#define HAS_VRR(i915) (DISPLAY_VER(i915) >= 11)
+#define HAS_AS_SDP(i915) (DISPLAY_VER(i915) >= 13)
#define INTEL_NUM_PIPES(i915) (hweight8(DISPLAY_RUNTIME_INFO(i915)->pipe_mask))
#define I915_HAS_HOTPLUG(i915) (DISPLAY_INFO(i915)->has_hotplug)
#define OVERLAY_NEEDS_PHYSICAL(i915) (DISPLAY_INFO(i915)->overlay_needs_physical)
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index f98ef4b42a44..aea524713df2 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -4119,6 +4119,32 @@ intel_dp_needs_vsc_sdp(const struct intel_crtc_state *crtc_state,
return false;
}
+static ssize_t intel_dp_as_sdp_pack(const struct drm_dp_as_sdp *as_sdp,
+ struct dp_sdp *sdp, size_t size)
+{
+ size_t length = sizeof(struct dp_sdp);
+
+ if (size < length)
+ return -ENOSPC;
+
+ memset(sdp, 0, size);
+
+ /* Prepare AS (Adaptive Sync) SDP Header */
+ sdp->sdp_header.HB0 = 0;
+ sdp->sdp_header.HB1 = as_sdp->sdp_type;
+ sdp->sdp_header.HB2 = 0x02;
+ sdp->sdp_header.HB3 = as_sdp->length;
+
+ /* Fill AS (Adaptive Sync) SDP Payload */
+ sdp->db[0] = as_sdp->mode;
+ sdp->db[1] = as_sdp->vtotal & 0xFF;
+ sdp->db[2] = (as_sdp->vtotal >> 8) & 0xFF;
+ sdp->db[3] = as_sdp->target_rr & 0xFF;
+ sdp->db[4] = (as_sdp->target_rr >> 8) & 0x3;
+
+ return length;
+}
+
static ssize_t
intel_dp_hdr_metadata_infoframe_sdp_pack(struct drm_i915_private *i915,
const struct hdmi_drm_infoframe *drm_infoframe,
@@ -4218,6 +4244,10 @@ static void intel_write_dp_sdp(struct intel_encoder *encoder,
&crtc_state->infoframes.drm.drm,
&sdp, sizeof(sdp));
break;
+ case DP_SDP_ADAPTIVE_SYNC:
+ len = intel_dp_as_sdp_pack(&crtc_state->infoframes.as_sdp, &sdp,
+ sizeof(sdp));
+ break;
default:
MISSING_CASE(type);
return;
@@ -4239,6 +4269,10 @@ void intel_dp_set_infoframes(struct intel_encoder *encoder,
u32 dip_enable = 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;
+
+ if (HAS_AS_SDP(dev_priv))
+ dip_enable |= VIDEO_DIP_ENABLE_AS_ADL;
+
u32 val = intel_de_read(dev_priv, reg) & ~dip_enable;
/* TODO: Sanitize DSC enabling wrt. intel_dsc_dp_pps_write(). */
@@ -4260,6 +4294,37 @@ 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_as_sdp_unpack(struct drm_dp_as_sdp *as_sdp,
+ const void *buffer, size_t size)
+{
+ const struct dp_sdp *sdp = buffer;
+
+ if (size < sizeof(struct dp_sdp))
+ return -EINVAL;
+
+ memset(as_sdp, 0, sizeof(*as_sdp));
+
+ if (sdp->sdp_header.HB0 != 0)
+ return -EINVAL;
+
+ if (sdp->sdp_header.HB1 != DP_SDP_ADAPTIVE_SYNC)
+ return -EINVAL;
+
+ if (sdp->sdp_header.HB2 != 0x02)
+ return -EINVAL;
+
+ if ((sdp->sdp_header.HB3 & 0x3F) != 9)
+ return -EINVAL;
+
+ as_sdp->length = sdp->sdp_header.HB3 & DP_ADAPTIVE_SYNC_SDP_LENGTH;
+ as_sdp->mode = sdp->db[0] & DP_ADAPTIVE_SYNC_SDP_OPERATION_MODE;
+ as_sdp->vtotal = (sdp->db[2] << 8) | sdp->db[1];
+ as_sdp->target_rr = (u64)sdp->db[3] | ((u64)sdp->db[4] & 0x3);
+
+ return 0;
+}
+
static int intel_dp_vsc_sdp_unpack(struct drm_dp_vsc_sdp *vsc,
const void *buffer, size_t size)
{
@@ -4330,6 +4395,29 @@ static int intel_dp_vsc_sdp_unpack(struct drm_dp_vsc_sdp *vsc,
return 0;
}
+static void
+intel_read_dp_as_sdp(struct intel_encoder *encoder,
+ struct intel_crtc_state *crtc_state,
+ struct drm_dp_as_sdp *as_sdp)
+{
+ struct intel_digital_port *dig_port = enc_to_dig_port(encoder);
+ struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
+ unsigned int type = DP_SDP_ADAPTIVE_SYNC;
+ struct dp_sdp sdp = {};
+ int ret;
+
+ if ((crtc_state->infoframes.enable &
+ intel_hdmi_infoframe_enable(type)) == 0)
+ return;
+
+ dig_port->read_infoframe(encoder, crtc_state, type, &sdp,
+ sizeof(sdp));
+
+ ret = intel_dp_as_sdp_unpack(as_sdp, &sdp, sizeof(sdp));
+ if (ret)
+ drm_dbg_kms(&dev_priv->drm, "Failed to unpack DP AS SDP\n");
+}
+
static int
intel_dp_hdr_metadata_infoframe_sdp_unpack(struct hdmi_drm_infoframe *drm_infoframe,
const void *buffer, size_t size)
@@ -4436,6 +4524,10 @@ void intel_read_dp_sdp(struct intel_encoder *encoder,
intel_read_dp_hdr_metadata_infoframe_sdp(encoder, crtc_state,
&crtc_state->infoframes.drm.drm);
break;
+ case DP_SDP_ADAPTIVE_SYNC:
+ intel_read_dp_as_sdp(encoder, crtc_state,
+ &crtc_state->infoframes.as_sdp);
+ break;
default:
MISSING_CASE(type);
break;
diff --git a/drivers/gpu/drm/i915/display/intel_hdmi.c b/drivers/gpu/drm/i915/display/intel_hdmi.c
index 90d2236fede3..18c35dd43ecb 100644
--- a/drivers/gpu/drm/i915/display/intel_hdmi.c
+++ b/drivers/gpu/drm/i915/display/intel_hdmi.c
@@ -114,6 +114,8 @@ static u32 g4x_infoframe_enable(unsigned int type)
return VIDEO_DIP_ENABLE_GAMUT;
case DP_SDP_VSC:
return 0;
+ case DP_SDP_ADAPTIVE_SYNC:
+ return 0;
case HDMI_INFOFRAME_TYPE_AVI:
return VIDEO_DIP_ENABLE_AVI;
case HDMI_INFOFRAME_TYPE_SPD:
@@ -137,6 +139,8 @@ 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_ADL;
case DP_SDP_PPS:
return VDIP_ENABLE_PPS;
case HDMI_INFOFRAME_TYPE_AVI:
@@ -164,6 +168,8 @@ 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 ADL_TVIDEO_DIP_AS_SDP_DATA(cpu_transcoder, i);
case DP_SDP_PPS:
return ICL_VIDEO_DIP_PPS_DATA(cpu_transcoder, i);
case HDMI_INFOFRAME_TYPE_AVI:
@@ -186,6 +192,8 @@ 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:
@@ -563,6 +571,9 @@ static u32 hsw_infoframes_enabled(struct intel_encoder *encoder,
if (DISPLAY_VER(dev_priv) >= 10)
mask |= VIDEO_DIP_ENABLE_DRM_GLK;
+ if (HAS_AS_SDP(dev_priv))
+ mask |= VIDEO_DIP_ENABLE_AS_ADL;
+
return val & mask;
}
@@ -570,6 +581,7 @@ static const u8 infoframe_type_to_idx[] = {
HDMI_PACKET_TYPE_GENERAL_CONTROL,
HDMI_PACKET_TYPE_GAMUT_METADATA,
DP_SDP_VSC,
+ DP_SDP_ADAPTIVE_SYNC,
HDMI_INFOFRAME_TYPE_AVI,
HDMI_INFOFRAME_TYPE_SPD,
HDMI_INFOFRAME_TYPE_VENDOR,
@@ -1212,7 +1224,7 @@ 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_ADL);
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 8823531b8770..9bda3a24cd94 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 36
#define VIDEO_DIP_GMP_DATA_SIZE 36
#define VIDEO_DIP_VSC_DATA_SIZE 36
#define VIDEO_DIP_PPS_DATA_SIZE 132
@@ -2350,6 +2351,8 @@
#define VIDEO_DIP_ENABLE_VS_HSW (1 << 8)
#define VIDEO_DIP_ENABLE_GMP_HSW (1 << 4)
#define VIDEO_DIP_ENABLE_SPD_HSW (1 << 0)
+/* ADL and later: */
+#define VIDEO_DIP_ENABLE_AS_ADL REG_BIT(23)
/* Panel fitting */
#define PFIT_CONTROL _MMIO(DISPLAY_MMIO_BASE(dev_priv) + 0x61230)
@@ -5040,6 +5043,7 @@
#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 _ADL_VIDEO_DIP_AS_DATA_A 0x60484
#define _GLK_VIDEO_DIP_DRM_DATA_A 0x60440
#define _HSW_VIDEO_DIP_AVI_ECC_A 0x60240
#define _HSW_VIDEO_DIP_VS_ECC_A 0x60280
@@ -5054,6 +5058,7 @@
#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 _ADL_VIDEO_DIP_AS_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
@@ -5083,6 +5088,9 @@
#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)
+/*ADLP and later: */
+#define ADL_TVIDEO_DIP_AS_SDP_DATA(trans, i) _MMIO_TRANS2(trans,\
+ _ADL_VIDEO_DIP_AS_DATA_A + (i) * 4)
#define _HSW_STEREO_3D_CTL_A 0x70020
#define S3D_ENABLE (1 << 31)
>From patchwork Mon Mar 11 09:42:34 2024
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Subject: [v17,5/9] drm/i915/dp: Add wrapper function to check AS SDP
From: Mitul Golani <mitulkumar.ajitkumar.golani at intel.com>
X-Patchwork-Id: 582300
Message-Id: <20240311094238.3320888-6-mitulkumar.ajitkumar.golani at intel.com>
To: intel-gfx at lists.freedesktop.org
Cc: ankit.k.nautiyal at intel.com, dri-devel at lists.freedesktop.org,
jani.nikula at intel.com, Mitul Golani <mitulkumar.ajitkumar.golani at intel.com>
Date: Mon, 11 Mar 2024 15:12:34 +0530
Add a wrapper function to check if both the source and
sink support Adaptive Sync SDP.
--v1:
Just use drm/i915/dp in subject line.
Signed-off-by: Mitul Golani <mitulkumar.ajitkumar.golani at intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal at intel.com>
---
drivers/gpu/drm/i915/display/intel_dp.c | 8 ++++++++
drivers/gpu/drm/i915/display/intel_dp.h | 1 +
2 files changed, 9 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index aea524713df2..3c8bca12dd6f 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -123,6 +123,14 @@ bool intel_dp_is_edp(struct intel_dp *intel_dp)
return dig_port->base.type == INTEL_OUTPUT_EDP;
}
+bool intel_dp_as_sdp_supported(struct intel_dp *intel_dp)
+{
+ struct drm_i915_private *i915 = dp_to_i915(intel_dp);
+
+ return HAS_AS_SDP(i915) &&
+ drm_dp_as_sdp_supported(&intel_dp->aux, intel_dp->dpcd);
+}
+
static void intel_dp_unset_edid(struct intel_dp *intel_dp);
/* Is link rate UHBR and thus 128b/132b? */
diff --git a/drivers/gpu/drm/i915/display/intel_dp.h b/drivers/gpu/drm/i915/display/intel_dp.h
index c540d3a73fe7..9f880d7865d1 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.h
+++ b/drivers/gpu/drm/i915/display/intel_dp.h
@@ -88,6 +88,7 @@ void intel_dp_audio_compute_config(struct intel_encoder *encoder,
struct drm_connector_state *conn_state);
bool intel_dp_has_hdmi_sink(struct intel_dp *intel_dp);
bool intel_dp_is_edp(struct intel_dp *intel_dp);
+bool intel_dp_as_sdp_supported(struct intel_dp *intel_dp);
bool intel_dp_is_uhbr(const struct intel_crtc_state *crtc_state);
int intel_dp_link_symbol_size(int rate);
int intel_dp_link_symbol_clock(int rate);
>From patchwork Mon Mar 11 09:42:35 2024
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Subject: [v17,6/9] drm/i915/display: Compute AS SDP parameters
From: Mitul Golani <mitulkumar.ajitkumar.golani at intel.com>
X-Patchwork-Id: 582299
Message-Id: <20240311094238.3320888-7-mitulkumar.ajitkumar.golani at intel.com>
To: intel-gfx at lists.freedesktop.org
Cc: ankit.k.nautiyal at intel.com, dri-devel at lists.freedesktop.org,
jani.nikula at intel.com, Mitul Golani <mitulkumar.ajitkumar.golani at intel.com>
Date: Mon, 11 Mar 2024 15:12:35 +0530
Add necessary function definitions to 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).
--v2:
- Added DP_SDP_ADAPTIVE_SYNC to infoframe_type_to_idx(). [Ankit]
- Separated patch for intel_read/write_dp_sdp. [Ankit]
- _HSW_VIDEO_DIP_ASYNC_DATA_A should be from ADL onward. [Ankit]
- Fixed indentation issues. [Ankit]
--v3:
- Added VIDEO_DIP_ENABLE_AS_HSW flag to intel_dp_set_infoframes.
--v4:
- Added HAS_VRR check before writing AS SDP.
--v5:
Added missed HAS_VRR check before reading AS SDP.
--v6:
- Used Adaptive Sync sink status as a check for read/write SDP. (Ankit)
--v7:
- Remove as_sdp_enable from crtc_state.
- Add a comment mentioning current support of
DP_AS_SDP_AVT_FIXED_VTOTAL.
- Add state checker for AS_SDP infoframe enable.
--v8:
- Drop conn_state from intel_dp_compute_as_sdp, as not used.
- Remove fullstop in subject line.
--v9:
- Add vrr.enable instead of is_in_vrr_range.
--v10:
- remove vrefresh and connector, as they are no longer required.
Signed-off-by: Mitul Golani <mitulkumar.ajitkumar.golani at intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal at intel.com>
---
drivers/gpu/drm/i915/display/intel_dp.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 3c8bca12dd6f..a9ed0c66ea63 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -2621,6 +2621,29 @@ static void intel_dp_compute_vsc_colorimetry(const struct intel_crtc_state *crtc
vsc->content_type = DP_CONTENT_TYPE_NOT_DEFINED;
}
+static void intel_dp_compute_as_sdp(struct intel_dp *intel_dp,
+ struct intel_crtc_state *crtc_state)
+{
+ struct drm_dp_as_sdp *as_sdp = &crtc_state->infoframes.as_sdp;
+ const struct drm_display_mode *adjusted_mode =
+ &crtc_state->hw.adjusted_mode;
+
+ if (!crtc_state->vrr.enable ||
+ !intel_dp_as_sdp_supported(intel_dp))
+ return;
+
+ crtc_state->infoframes.enable |= intel_hdmi_infoframe_enable(DP_SDP_ADAPTIVE_SYNC);
+
+ /* Currently only DP_AS_SDP_AVT_FIXED_VTOTAL mode supported */
+ as_sdp->sdp_type = DP_SDP_ADAPTIVE_SYNC;
+ as_sdp->length = 0x9;
+ as_sdp->mode = DP_AS_SDP_AVT_FIXED_VTOTAL;
+ as_sdp->vtotal = adjusted_mode->vtotal;
+ as_sdp->target_rr = 0;
+ as_sdp->duration_incr_ms = 0;
+ as_sdp->duration_incr_ms = 0;
+}
+
static void intel_dp_compute_vsc_sdp(struct intel_dp *intel_dp,
struct intel_crtc_state *crtc_state,
const struct drm_connector_state *conn_state)
@@ -2972,6 +2995,7 @@ intel_dp_compute_config(struct intel_encoder *encoder,
g4x_dp_set_clock(encoder, pipe_config);
intel_vrr_compute_config(pipe_config, conn_state);
+ intel_dp_compute_as_sdp(intel_dp, pipe_config);
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);
>From patchwork Mon Mar 11 09:42:36 2024
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Subject: [v17,7/9] drm/i915/display: Add state checker for Adaptive Sync SDP
From: Mitul Golani <mitulkumar.ajitkumar.golani at intel.com>
X-Patchwork-Id: 582301
Message-Id: <20240311094238.3320888-8-mitulkumar.ajitkumar.golani at intel.com>
To: intel-gfx at lists.freedesktop.org
Cc: ankit.k.nautiyal at intel.com, dri-devel at lists.freedesktop.org,
jani.nikula at intel.com, Mitul Golani <mitulkumar.ajitkumar.golani at intel.com>
Date: Mon, 11 Mar 2024 15:12:36 +0530
Enable infoframe and add state checker for Adaptive Sync
SDP enablement.
--v1:
- crtc_state->infoframes.enable, to add on correct place holder.
Signed-off-by: Mitul Golani <mitulkumar.ajitkumar.golani at intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal at intel.com>
---
drivers/gpu/drm/i915/display/intel_display.c | 46 ++++++++++++++++++++
1 file changed, 46 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index b88f214e111a..8f1d948408d3 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -4791,6 +4791,17 @@ intel_compare_dp_vsc_sdp(const struct drm_dp_vsc_sdp *a,
a->content_type == b->content_type;
}
+static bool
+intel_compare_dp_as_sdp(const struct drm_dp_as_sdp *a,
+ const struct drm_dp_as_sdp *b)
+{
+ return a->vtotal == b->vtotal &&
+ a->target_rr == b->target_rr &&
+ a->duration_incr_ms == b->duration_incr_ms &&
+ a->duration_decr_ms == b->duration_decr_ms &&
+ a->mode == b->mode;
+}
+
static bool
intel_compare_buffer(const u8 *a, const u8 *b, size_t len)
{
@@ -4846,6 +4857,30 @@ pipe_config_dp_vsc_sdp_mismatch(struct drm_i915_private *i915,
drm_dp_vsc_sdp_log(&p, b);
}
+static void
+pipe_config_dp_as_sdp_mismatch(struct drm_i915_private *i915,
+ bool fastset, const char *name,
+ const struct drm_dp_as_sdp *a,
+ const struct drm_dp_as_sdp *b)
+{
+ struct drm_printer p;
+
+ if (fastset) {
+ p = drm_dbg_printer(&i915->drm, DRM_UT_KMS, NULL);
+
+ drm_printf(&p, "fastset requirement not met in %s dp sdp\n", name);
+ } else {
+ p = drm_err_printer(&i915->drm, NULL);
+
+ drm_printf(&p, "mismatch in %s dp sdp\n", name);
+ }
+
+ drm_printf(&p, "expected:\n");
+ drm_dp_as_sdp_log(&p, a);
+ drm_printf(&p, "found:\n");
+ drm_dp_as_sdp_log(&p, b);
+}
+
/* Returns the length up to and including the last differing byte */
static size_t
memcmp_diff_len(const u8 *a, const u8 *b, size_t len)
@@ -5099,6 +5134,16 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config,
} \
} while (0)
+#define PIPE_CONF_CHECK_DP_AS_SDP(name) do { \
+ if (!intel_compare_dp_as_sdp(¤t_config->infoframes.name, \
+ &pipe_config->infoframes.name)) { \
+ pipe_config_dp_as_sdp_mismatch(dev_priv, fastset, __stringify(name), \
+ ¤t_config->infoframes.name, \
+ &pipe_config->infoframes.name); \
+ ret = false; \
+ } \
+} while (0)
+
#define PIPE_CONF_CHECK_BUFFER(name, len) do { \
BUILD_BUG_ON(sizeof(current_config->name) != (len)); \
BUILD_BUG_ON(sizeof(pipe_config->name) != (len)); \
@@ -5280,6 +5325,7 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config,
PIPE_CONF_CHECK_INFOFRAME(hdmi);
PIPE_CONF_CHECK_INFOFRAME(drm);
PIPE_CONF_CHECK_DP_VSC_SDP(vsc);
+ PIPE_CONF_CHECK_DP_AS_SDP(as_sdp);
PIPE_CONF_CHECK_X(sync_mode_slaves_mask);
PIPE_CONF_CHECK_I(master_transcoder);
>From patchwork Wed Mar 20 05:00:20 2024
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Subject: [v20,8/9] drm/i915/display: Compute vrr_vsync params
From: Mitul Golani <mitulkumar.ajitkumar.golani at intel.com>
X-Patchwork-Id: 583560
Message-Id: <20240320050020.3785596-1-mitulkumar.ajitkumar.golani at intel.com>
To: intel-gfx at lists.freedesktop.org
Cc: Mitul Golani <mitulkumar.ajitkumar.golani at intel.com>,
Arun R Murthy <arun.r.murthy at intel.com>
Date: Wed, 20 Mar 2024 10:30:20 +0530
Compute vrr_vsync_start/end, which sets the position
for hardware to send the Vsync at a fixed position
relative to the end of the Vblank.
--v2:
- Updated VSYNC_START/END macros to VRR_VSYNC_START/END. (Ankit)
- Updated bit fields of VRR_VSYNC_START/END. (Ankit)
--v3:
- Add PIPE_CONF_CHECK_I(vrr.vsync_start/end).
- Read/write vrr_vsync params only when we intend to send
adaptive_sync sdp.
--v4:
- Use VRR_SYNC_START/END macros correctly.
--v5:
- Send AS SDP only when VRR is enabled.
--v6:
- Add TRANS_VRR_VSYNC befor enabling VRR as per bspec. (Ankit)
Signed-off-by: Mitul Golani <mitulkumar.ajitkumar.golani at intel.com>
Reviewed-by: Arun R Murthy <arun.r.murthy at intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal at intel.com>
---
drivers/gpu/drm/i915/display/intel_display.c | 2 ++
.../drm/i915/display/intel_display_types.h | 1 +
drivers/gpu/drm/i915/display/intel_vrr.c | 33 +++++++++++++++++--
drivers/gpu/drm/i915/i915_reg.h | 7 ++++
4 files changed, 41 insertions(+), 2 deletions(-)
diff --git a/drivers/gpu/drm/i915/display/intel_display.c b/drivers/gpu/drm/i915/display/intel_display.c
index eb8f36b38c41..9e5924e21eee 100644
--- a/drivers/gpu/drm/i915/display/intel_display.c
+++ b/drivers/gpu/drm/i915/display/intel_display.c
@@ -5356,6 +5356,8 @@ intel_pipe_config_compare(const struct intel_crtc_state *current_config,
PIPE_CONF_CHECK_I(vrr.flipline);
PIPE_CONF_CHECK_I(vrr.pipeline_full);
PIPE_CONF_CHECK_I(vrr.guardband);
+ PIPE_CONF_CHECK_I(vrr.vsync_start);
+ PIPE_CONF_CHECK_I(vrr.vsync_end);
}
#undef PIPE_CONF_CHECK_X
diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
index 36fcded7564a..95da3cf27188 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -1431,6 +1431,7 @@ struct intel_crtc_state {
bool enable, in_range;
u8 pipeline_full;
u16 flipline, vmin, vmax, guardband;
+ u32 vsync_end, vsync_start;
} vrr;
/* Stream Splitter for eDP MSO */
diff --git a/drivers/gpu/drm/i915/display/intel_vrr.c b/drivers/gpu/drm/i915/display/intel_vrr.c
index eb5bd0743902..856378f8b90e 100644
--- a/drivers/gpu/drm/i915/display/intel_vrr.c
+++ b/drivers/gpu/drm/i915/display/intel_vrr.c
@@ -9,6 +9,7 @@
#include "intel_de.h"
#include "intel_display_types.h"
#include "intel_vrr.h"
+#include "intel_dp.h"
bool intel_vrr_is_capable(struct intel_connector *connector)
{
@@ -113,6 +114,7 @@ intel_vrr_compute_config(struct intel_crtc_state *crtc_state,
struct drm_i915_private *i915 = to_i915(crtc->base.dev);
struct intel_connector *connector =
to_intel_connector(conn_state->connector);
+ struct intel_dp *intel_dp = intel_attached_dp(connector);
struct drm_display_mode *adjusted_mode = &crtc_state->hw.adjusted_mode;
const struct drm_display_info *info = &connector->base.display_info;
int vmin, vmax;
@@ -165,6 +167,14 @@ intel_vrr_compute_config(struct intel_crtc_state *crtc_state,
if (crtc_state->uapi.vrr_enabled) {
crtc_state->vrr.enable = true;
crtc_state->mode_flags |= I915_MODE_FLAG_VRR;
+ if (intel_dp_as_sdp_supported(intel_dp)) {
+ crtc_state->vrr.vsync_start =
+ (crtc_state->hw.adjusted_mode.crtc_vtotal -
+ crtc_state->hw.adjusted_mode.vsync_start);
+ crtc_state->vrr.vsync_end =
+ (crtc_state->hw.adjusted_mode.crtc_vtotal -
+ crtc_state->hw.adjusted_mode.vsync_end);
+ }
}
}
@@ -240,6 +250,12 @@ void intel_vrr_enable(const struct intel_crtc_state *crtc_state)
return;
intel_de_write(dev_priv, TRANS_PUSH(cpu_transcoder), TRANS_PUSH_EN);
+
+ if (HAS_AS_SDP(dev_priv))
+ intel_de_write(dev_priv, TRANS_VRR_VSYNC(cpu_transcoder),
+ VRR_VSYNC_END(crtc_state->vrr.vsync_end) |
+ VRR_VSYNC_START(crtc_state->vrr.vsync_start));
+
intel_de_write(dev_priv, TRANS_VRR_CTL(cpu_transcoder),
VRR_CTL_VRR_ENABLE | trans_vrr_ctl(crtc_state));
}
@@ -258,13 +274,16 @@ void intel_vrr_disable(const struct intel_crtc_state *old_crtc_state)
intel_de_wait_for_clear(dev_priv, TRANS_VRR_STATUS(cpu_transcoder),
VRR_STATUS_VRR_EN_LIVE, 1000);
intel_de_write(dev_priv, TRANS_PUSH(cpu_transcoder), 0);
+
+ if (HAS_AS_SDP(dev_priv))
+ intel_de_write(dev_priv, TRANS_VRR_VSYNC(cpu_transcoder), 0);
}
void intel_vrr_get_config(struct intel_crtc_state *crtc_state)
{
struct drm_i915_private *dev_priv = to_i915(crtc_state->uapi.crtc->dev);
enum transcoder cpu_transcoder = crtc_state->cpu_transcoder;
- u32 trans_vrr_ctl;
+ u32 trans_vrr_ctl, trans_vrr_vsync;
trans_vrr_ctl = intel_de_read(dev_priv, TRANS_VRR_CTL(cpu_transcoder));
@@ -284,6 +303,16 @@ void intel_vrr_get_config(struct intel_crtc_state *crtc_state)
crtc_state->vrr.vmin = intel_de_read(dev_priv, TRANS_VRR_VMIN(cpu_transcoder)) + 1;
}
- if (crtc_state->vrr.enable)
+ if (crtc_state->vrr.enable) {
crtc_state->mode_flags |= I915_MODE_FLAG_VRR;
+
+ if (HAS_AS_SDP(dev_priv)) {
+ trans_vrr_vsync =
+ intel_de_read(dev_priv, TRANS_VRR_VSYNC(cpu_transcoder));
+ crtc_state->vrr.vsync_start =
+ REG_FIELD_GET(VRR_VSYNC_START_MASK, trans_vrr_vsync);
+ crtc_state->vrr.vsync_end =
+ REG_FIELD_GET(VRR_VSYNC_END_MASK, trans_vrr_vsync);
+ }
+ }
}
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 3ff6a38826cb..2ede6982175c 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -2095,6 +2095,13 @@
#define TRANS_PUSH_EN REG_BIT(31)
#define TRANS_PUSH_SEND REG_BIT(30)
+#define _TRANS_VRR_VSYNC_A 0x60078
+#define TRANS_VRR_VSYNC(trans) _MMIO_TRANS2(trans, _TRANS_VRR_VSYNC_A)
+#define VRR_VSYNC_END_MASK REG_GENMASK(28, 16)
+#define VRR_VSYNC_END(vsync_end) REG_FIELD_PREP(VRR_VSYNC_END_MASK, (vsync_end))
+#define VRR_VSYNC_START_MASK REG_GENMASK(12, 0)
+#define VRR_VSYNC_START(vsync_start) REG_FIELD_PREP(VRR_VSYNC_START_MASK, (vsync_start))
+
/* VGA port control */
#define ADPA _MMIO(0x61100)
#define PCH_ADPA _MMIO(0xe1100)
>From patchwork Mon Mar 11 09:42:38 2024
Content-Type: text/plain; charset="utf-8"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Subject: [v17,9/9] drm/i915/display: Read/Write Adaptive Sync SDP
From: Mitul Golani <mitulkumar.ajitkumar.golani at intel.com>
X-Patchwork-Id: 582307
Message-Id: <20240311094238.3320888-10-mitulkumar.ajitkumar.golani at intel.com>
To: intel-gfx at lists.freedesktop.org
Cc: ankit.k.nautiyal at intel.com, dri-devel at lists.freedesktop.org,
jani.nikula at intel.com, Mitul Golani <mitulkumar.ajitkumar.golani at intel.com>
Date: Mon, 11 Mar 2024 15:12:38 +0530
Add read/write calls for Adaptive Sync SDP.
Signed-off-by: Mitul Golani <mitulkumar.ajitkumar.golani at intel.com>
Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal at intel.com>
---
drivers/gpu/drm/i915/display/intel_ddi.c | 1 +
drivers/gpu/drm/i915/display/intel_dp.c | 1 +
2 files changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index c587a8efeafc..f164020a4773 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -3972,6 +3972,7 @@ static void intel_ddi_get_config(struct intel_encoder *encoder,
intel_read_dp_sdp(encoder, pipe_config, HDMI_PACKET_TYPE_GAMUT_METADATA);
intel_read_dp_sdp(encoder, pipe_config, DP_SDP_VSC);
+ intel_read_dp_sdp(encoder, pipe_config, DP_SDP_ADAPTIVE_SYNC);
intel_audio_codec_get_config(encoder, pipe_config);
}
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index a9ed0c66ea63..3f377a743bc4 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -4322,6 +4322,7 @@ void intel_dp_set_infoframes(struct intel_encoder *encoder,
return;
intel_write_dp_sdp(encoder, crtc_state, DP_SDP_VSC);
+ intel_write_dp_sdp(encoder, crtc_state, DP_SDP_ADAPTIVE_SYNC);
intel_write_dp_sdp(encoder, crtc_state, HDMI_PACKET_TYPE_GAMUT_METADATA);
}
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