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From: Matt Roper <matthew.d.roper@intel.com>
To: intel-gfx@lists.freedesktop.org
Subject: [Intel-gfx] [PATCH 34/56] drm/i915/adl_p: Implement TC sequences
Date: Thu, 11 Mar 2021 14:36:10 -0800	[thread overview]
Message-ID: <20210311223632.3191939-35-matthew.d.roper@intel.com> (raw)
In-Reply-To: <20210311223632.3191939-1-matthew.d.roper@intel.com>

From: José Roberto de Souza <jose.souza@intel.com>

ADL-P have basically the same TC connection and disconnection
sequences as ICL and TGL, the major difference is the new registers.

So here adding functions without the icl prefix in the name and
making the new functions call the platform specific function to access
the correct register.

BSpec: 55480
Cc: Imre Deak <imre.deak@intel.com>
Signed-off-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Clinton Taylor <Clinton.A.Taylor@intel.com>
Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
---
 drivers/gpu/drm/i915/display/intel_tc.c | 132 ++++++++++++++++++++++--
 drivers/gpu/drm/i915/i915_reg.h         |  10 ++
 2 files changed, 131 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_tc.c b/drivers/gpu/drm/i915/display/intel_tc.c
index d2d524329509..85952f39a13d 100644
--- a/drivers/gpu/drm/i915/display/intel_tc.c
+++ b/drivers/gpu/drm/i915/display/intel_tc.c
@@ -205,7 +205,7 @@ static void tc_port_fixup_legacy_flag(struct intel_digital_port *dig_port,
 	dig_port->tc_legacy_port = !dig_port->tc_legacy_port;
 }
 
-static u32 tc_port_live_status_mask(struct intel_digital_port *dig_port)
+static u32 icl_tc_port_live_status_mask(struct intel_digital_port *dig_port)
 {
 	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
 	struct intel_uncore *uncore = &i915->uncore;
@@ -238,6 +238,40 @@ static u32 tc_port_live_status_mask(struct intel_digital_port *dig_port)
 	return mask;
 }
 
+static u32 adl_tc_port_live_status_mask(struct intel_digital_port *dig_port)
+{
+	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
+	enum tc_port tc_port = intel_port_to_tc(i915, dig_port->base.port);
+	u32 isr_bit = i915->hotplug.pch_hpd[dig_port->base.hpd_pin];
+	struct intel_uncore *uncore = &i915->uncore;
+	u32 val, mask = 0;
+
+	val = intel_uncore_read(uncore, TCSS_DDI_STATUS(tc_port));
+	if (val & TCSS_DDI_STATUS_HPD_LIVE_STATUS_ALT)
+		mask |= BIT(TC_PORT_DP_ALT);
+	if (val & TCSS_DDI_STATUS_HPD_LIVE_STATUS_TBT)
+		mask |= BIT(TC_PORT_TBT_ALT);
+
+	if (intel_uncore_read(uncore, SDEISR) & isr_bit)
+		mask |= BIT(TC_PORT_LEGACY);
+
+	/* The sink can be connected only in a single mode. */
+	if (!drm_WARN_ON(&i915->drm, hweight32(mask) > 1))
+		tc_port_fixup_legacy_flag(dig_port, mask);
+
+	return mask;
+}
+
+static u32 tc_port_live_status_mask(struct intel_digital_port *dig_port)
+{
+	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
+
+	if (IS_ALDERLAKE_P(i915))
+		return adl_tc_port_live_status_mask(dig_port);
+
+	return icl_tc_port_live_status_mask(dig_port);
+}
+
 static bool icl_tc_phy_status_complete(struct intel_digital_port *dig_port)
 {
 	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
@@ -256,6 +290,33 @@ static bool icl_tc_phy_status_complete(struct intel_digital_port *dig_port)
 	return val & DP_PHY_MODE_STATUS_COMPLETED(dig_port->tc_phy_fia_idx);
 }
 
+static bool adl_tc_phy_status_complete(struct intel_digital_port *dig_port)
+{
+	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
+	struct intel_uncore *uncore = &i915->uncore;
+	u32 val;
+
+	val = intel_uncore_read(uncore, TCSS_DDI_STATUS(dig_port->tc_phy_fia_idx));
+	if (val == 0xffffffff) {
+		drm_dbg_kms(&i915->drm,
+			    "Port %s: PHY in TCCOLD, assuming not complete\n",
+			    dig_port->tc_port_name);
+		return false;
+	}
+
+	return val & TCSS_DDI_STATUS_READY;
+}
+
+static bool tc_phy_status_complete(struct intel_digital_port *dig_port)
+{
+	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
+
+	if (IS_ALDERLAKE_P(i915))
+		return adl_tc_phy_status_complete(dig_port);
+
+	return icl_tc_phy_status_complete(dig_port);
+}
+
 static bool icl_tc_phy_take_ownership(struct intel_digital_port *dig_port,
 				      bool take)
 {
@@ -280,7 +341,7 @@ static bool icl_tc_phy_take_ownership(struct intel_digital_port *dig_port,
 	intel_uncore_write(uncore,
 			   PORT_TX_DFLEXDPCSSS(dig_port->tc_phy_fia), val);
 
-	if (!take && wait_for(!icl_tc_phy_status_complete(dig_port), 10))
+	if (!take && wait_for(!tc_phy_status_complete(dig_port), 10))
 		drm_dbg_kms(&i915->drm,
 			    "Port %s: PHY complete clear timed out\n",
 			    dig_port->tc_port_name);
@@ -288,6 +349,34 @@ static bool icl_tc_phy_take_ownership(struct intel_digital_port *dig_port,
 	return true;
 }
 
+static bool adl_tc_phy_take_ownership(struct intel_digital_port *dig_port,
+				      bool take)
+{
+	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
+	struct intel_uncore *uncore = &i915->uncore;
+	enum port port = dig_port->base.port;
+	u32 val;
+
+	val = intel_uncore_read(uncore, DDI_BUF_CTL(port));
+	if (take)
+		val |= DDI_BUF_CTL_TC_PHY_OWNERSHIP;
+	else
+		val &= ~DDI_BUF_CTL_TC_PHY_OWNERSHIP;
+	intel_uncore_write(uncore, DDI_BUF_CTL(port), val);
+
+	return true;
+}
+
+static bool tc_phy_take_ownership(struct intel_digital_port *dig_port, bool take)
+{
+	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
+
+	if (IS_ALDERLAKE_P(i915))
+		return adl_tc_phy_take_ownership(dig_port, take);
+
+	return icl_tc_phy_take_ownership(dig_port, take);
+}
+
 static bool icl_tc_phy_is_owned(struct intel_digital_port *dig_port)
 {
 	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
@@ -306,6 +395,27 @@ static bool icl_tc_phy_is_owned(struct intel_digital_port *dig_port)
 	return val & DP_PHY_MODE_STATUS_NOT_SAFE(dig_port->tc_phy_fia_idx);
 }
 
+static bool adl_tc_phy_is_owned(struct intel_digital_port *dig_port)
+{
+	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
+	struct intel_uncore *uncore = &i915->uncore;
+	enum port port = dig_port->base.port;
+	u32 val;
+
+	val = intel_uncore_read(uncore, DDI_BUF_CTL(port));
+	return val & DDI_BUF_CTL_TC_PHY_OWNERSHIP;
+}
+
+static bool tc_phy_is_owned(struct intel_digital_port *dig_port)
+{
+	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
+
+	if (IS_ALDERLAKE_P(i915))
+		return adl_tc_phy_is_owned(dig_port);
+
+	return icl_tc_phy_is_owned(dig_port);
+}
+
 /*
  * This function implements the first part of the Connect Flow described by our
  * specification, Gen11 TypeC Programming chapter. The rest of the flow (reading
@@ -323,13 +433,13 @@ static void icl_tc_phy_connect(struct intel_digital_port *dig_port,
 	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
 	int max_lanes;
 
-	if (!icl_tc_phy_status_complete(dig_port)) {
+	if (!tc_phy_status_complete(dig_port)) {
 		drm_dbg_kms(&i915->drm, "Port %s: PHY not ready\n",
 			    dig_port->tc_port_name);
 		goto out_set_tbt_alt_mode;
 	}
 
-	if (!icl_tc_phy_take_ownership(dig_port, true) &&
+	if (!tc_phy_take_ownership(dig_port, true) &&
 	    !drm_WARN_ON(&i915->drm, dig_port->tc_legacy_port))
 		goto out_set_tbt_alt_mode;
 
@@ -364,7 +474,7 @@ static void icl_tc_phy_connect(struct intel_digital_port *dig_port,
 	return;
 
 out_release_phy:
-	icl_tc_phy_take_ownership(dig_port, false);
+	tc_phy_take_ownership(dig_port, false);
 out_set_tbt_alt_mode:
 	dig_port->tc_mode = TC_PORT_TBT_ALT;
 }
@@ -380,7 +490,7 @@ static void icl_tc_phy_disconnect(struct intel_digital_port *dig_port)
 		/* Nothing to do, we never disconnect from legacy mode */
 		break;
 	case TC_PORT_DP_ALT:
-		icl_tc_phy_take_ownership(dig_port, false);
+		tc_phy_take_ownership(dig_port, false);
 		dig_port->tc_mode = TC_PORT_TBT_ALT;
 		break;
 	case TC_PORT_TBT_ALT:
@@ -395,13 +505,13 @@ static bool icl_tc_phy_is_connected(struct intel_digital_port *dig_port)
 {
 	struct drm_i915_private *i915 = to_i915(dig_port->base.base.dev);
 
-	if (!icl_tc_phy_status_complete(dig_port)) {
+	if (!tc_phy_status_complete(dig_port)) {
 		drm_dbg_kms(&i915->drm, "Port %s: PHY status not complete\n",
 			    dig_port->tc_port_name);
 		return dig_port->tc_mode == TC_PORT_TBT_ALT;
 	}
 
-	if (!icl_tc_phy_is_owned(dig_port)) {
+	if (!tc_phy_is_owned(dig_port)) {
 		drm_dbg_kms(&i915->drm, "Port %s: PHY not owned\n",
 			    dig_port->tc_port_name);
 
@@ -419,8 +529,8 @@ intel_tc_port_get_current_mode(struct intel_digital_port *dig_port)
 	u32 live_status_mask = tc_port_live_status_mask(dig_port);
 	enum tc_port_mode mode;
 
-	if (!icl_tc_phy_is_owned(dig_port) ||
-	    drm_WARN_ON(&i915->drm, !icl_tc_phy_status_complete(dig_port)))
+	if (!tc_phy_is_owned(dig_port) ||
+	    drm_WARN_ON(&i915->drm, !tc_phy_status_complete(dig_port)))
 		return TC_PORT_TBT_ALT;
 
 	mode = dig_port->tc_legacy_port ? TC_PORT_LEGACY : TC_PORT_DP_ALT;
@@ -442,7 +552,7 @@ intel_tc_port_get_target_mode(struct intel_digital_port *dig_port)
 	if (live_status_mask)
 		return fls(live_status_mask) - 1;
 
-	return icl_tc_phy_status_complete(dig_port) &&
+	return tc_phy_status_complete(dig_port) &&
 	       dig_port->tc_legacy_port ? TC_PORT_LEGACY :
 					  TC_PORT_TBT_ALT;
 }
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 1d0cb423720e..ce8f1e892523 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -10130,6 +10130,7 @@ enum skl_power_gate {
 #define  DDI_BUF_EMP_MASK			(0xf << 24)
 #define  DDI_BUF_PORT_REVERSAL			(1 << 16)
 #define  DDI_BUF_IS_IDLE			(1 << 7)
+#define  DDI_BUF_CTL_TC_PHY_OWNERSHIP		REG_BIT(6)
 #define  DDI_A_4_LANES				(1 << 4)
 #define  DDI_PORT_WIDTH(width)			(((width) - 1) << 1)
 #define  DDI_PORT_WIDTH_MASK			(7 << 1)
@@ -12562,6 +12563,15 @@ enum skl_power_gate {
 #define   DP_PIN_ASSIGNMENT_MASK(idx)		(0xf << ((idx) * 4))
 #define   DP_PIN_ASSIGNMENT(idx, x)		((x) << ((idx) * 4))
 
+#define _TCSS_DDI_STATUS_1			0x161500
+#define _TCSS_DDI_STATUS_2			0x161504
+#define TCSS_DDI_STATUS(tc)			_MMIO(_PICK_EVEN(tc, \
+								 _TCSS_DDI_STATUS_1, \
+								 _TCSS_DDI_STATUS_2))
+#define  TCSS_DDI_STATUS_READY			REG_BIT(2)
+#define  TCSS_DDI_STATUS_HPD_LIVE_STATUS_TBT	REG_BIT(1)
+#define  TCSS_DDI_STATUS_HPD_LIVE_STATUS_ALT	REG_BIT(0)
+
 /* This register controls the Display State Buffer (DSB) engines. */
 #define _DSBSL_INSTANCE_BASE		0x70B00
 #define DSBSL_INSTANCE(pipe, id)	(_DSBSL_INSTANCE_BASE + \
-- 
2.25.4

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  parent reply	other threads:[~2021-03-11 22:37 UTC|newest]

Thread overview: 74+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-11 22:35 [Intel-gfx] [PATCH 00/56] Introduce Alder Lake-P Matt Roper
2021-03-11 22:35 ` [Intel-gfx] [PATCH 01/56] drm/i915/display: Convert gen5/gen6 tests to IS_IRONLAKE/IS_SANDYBRIDGE Matt Roper
2021-03-12 16:50   ` Ville Syrjälä
2021-03-11 22:35 ` [Intel-gfx] [PATCH 02/56] drm/i915: Add DISPLAY_VER() Matt Roper
2021-03-11 22:35 ` [Intel-gfx] [PATCH 03/56] drm/i915/display: Eliminate most usage of INTEL_GEN() Matt Roper
2021-03-11 22:35 ` [Intel-gfx] [PATCH 04/56] drm/i915: Convert INTEL_GEN() to DISPLAY_VER() as appropriate in intel_pm.c Matt Roper
2021-03-12 20:42   ` Srivatsa, Anusha
2021-03-12 20:46     ` Matt Roper
2021-03-17 18:02       ` Jani Nikula
2021-03-11 22:35 ` [Intel-gfx] [PATCH 05/56] drm/i915: Convert INTEL_GEN() to DISPLAY_VER() as appropriate in i915_irq.c Matt Roper
2021-03-11 22:35 ` [Intel-gfx] [PATCH 06/56] drm/i915/display: Simplify GLK display version tests Matt Roper
2021-03-12 18:52   ` Ville Syrjälä
2021-03-11 22:35 ` [Intel-gfx] [PATCH 07/56] drm/i915/xelpd: add XE_LPD display characteristics Matt Roper
2021-03-11 22:35 ` [Intel-gfx] [PATCH 08/56] drm/i915/xelpd: Handle proper AUX interrupt bits Matt Roper
2021-03-12 22:41   ` Srivatsa, Anusha
2021-03-11 22:35 ` [Intel-gfx] [PATCH 09/56] drm/i915/xelpd: Enhanced pipe underrun reporting Matt Roper
2021-03-11 22:35 ` [Intel-gfx] [PATCH 10/56] drm/i915/xelpd: Define plane capabilities Matt Roper
2021-03-11 22:35 ` [Intel-gfx] [PATCH 11/56] drm/i915/xelpd: Support 128k plane stride Matt Roper
2021-03-11 22:35 ` [Intel-gfx] [PATCH 12/56] drm/i915/xelpd: Handle new location of outputs D and E Matt Roper
2021-03-11 22:35 ` [Intel-gfx] [PATCH 13/56] drm/i915/xelpd: Add XE_LPD power wells Matt Roper
2021-03-11 22:35 ` [Intel-gfx] [PATCH 14/56] drm/i915/xelpd: Handle LPSP for XE_LPD Matt Roper
2021-03-11 22:35 ` [Intel-gfx] [PATCH 15/56] drm/i915/xelpd: Increase maximum watermark lines to 255 Matt Roper
2021-03-11 22:35 ` [Intel-gfx] [PATCH 16/56] drm/i915/xelpd: Required bandwidth increases when VT-d is active Matt Roper
2021-03-12 23:03   ` Srivatsa, Anusha
2021-03-11 22:35 ` [Intel-gfx] [PATCH 17/56] drm/i915/xelpd: Add Wa_14011503030 Matt Roper
2021-03-11 22:35 ` [Intel-gfx] [PATCH 18/56] drm/i915/display/dsc: Refactor intel_dp_dsc_compute_bpp Matt Roper
2021-03-11 22:35 ` [Intel-gfx] [PATCH 19/56] drm/i915/xelpd: Support DP1.4 compression BPPs Matt Roper
2021-03-11 22:35 ` [Intel-gfx] [PATCH 20/56] drm/i915: Get slice height before computing rc params Matt Roper
2021-03-11 22:35 ` [Intel-gfx] [PATCH 21/56] drm/i915/xelpd: Calculate VDSC RC parameters Matt Roper
2021-03-11 22:35 ` [Intel-gfx] [PATCH 22/56] drm/i915/xelpd: Add rc_qp_table for rcparams calculation Matt Roper
2021-03-11 22:35 ` [Intel-gfx] [PATCH 23/56] drm/i915/xelpd: Add VRR guardband for VRR CTL Matt Roper
2021-03-11 22:36 ` [Intel-gfx] [PATCH 24/56] drm/i915/adl_p: Add PCI Devices IDs Matt Roper
2021-03-12 23:20   ` Srivatsa, Anusha
2021-03-17 18:04   ` Jani Nikula
2021-03-11 22:36 ` [Intel-gfx] [PATCH 25/56] drm/i915/adl_p: ADL_P device info enabling Matt Roper
2021-03-11 22:36 ` [Intel-gfx] [PATCH 26/56] drm/i915/adl_p: Add PCH support Matt Roper
2021-03-12 23:52   ` Srivatsa, Anusha
2021-03-11 22:36 ` [Intel-gfx] [PATCH 27/56] drm/i915/adl_p: Add dedicated SAGV watermarks Matt Roper
2021-03-11 22:36 ` [Intel-gfx] [PATCH 28/56] drm/i915/adl_p: Extend PLANE_WM bits for blocks & lines Matt Roper
2021-03-12 23:59   ` Srivatsa, Anusha
2021-03-11 22:36 ` [Intel-gfx] [PATCH 29/56] drm/i915/adl_p: Load DMC Matt Roper
2021-03-11 22:36 ` [Intel-gfx] [PATCH 30/56] drm/i915/adl_p: Setup ports/phys Matt Roper
2021-03-11 22:36 ` [Intel-gfx] [PATCH 31/56] drm/i915/adl_p: Add cdclk support for ADL-P Matt Roper
2021-03-11 22:36 ` [Intel-gfx] [PATCH 32/56] drm/i915/display/tc: Rename safe_mode functions ownership Matt Roper
2021-03-11 22:36 ` [Intel-gfx] [PATCH 33/56] drm/i915/adl_p: Handle TC cold Matt Roper
2021-03-11 22:36 ` Matt Roper [this message]
2021-03-11 22:36 ` [Intel-gfx] [PATCH 35/56] drm/i915/adl_p: Enable modular fia Matt Roper
2021-03-11 22:36 ` [Intel-gfx] [PATCH 36/56] drm/i915/adl_p: Don't config MBUS and DBUF during display initialization Matt Roper
2021-03-11 22:36 ` [Intel-gfx] [PATCH 37/56] drm/i915/adl_p: Add ddb allocation support Matt Roper
2021-03-11 22:36 ` [Intel-gfx] [PATCH 38/56] drm/i915: Introduce MBUS relative dbuf offsets Matt Roper
2021-03-11 22:36 ` [Intel-gfx] [PATCH 39/56] drm/i915: Move intel_modeset_all_pipes() Matt Roper
2021-03-11 22:36 ` [Intel-gfx] [PATCH 40/56] drm/i915/adl_p: MBUS programming Matt Roper
2021-03-11 22:36 ` [Intel-gfx] [PATCH 41/56] drm/i915/adl_p: Tx escape clock with DSI Matt Roper
2021-03-11 22:36 ` [Intel-gfx] [PATCH 42/56] drm/i915/adl_p: Add initial ADL_P Workarounds Matt Roper
2021-03-11 22:36 ` [Intel-gfx] [PATCH 43/56] drm/i915/adlp: Define GuC/HuC for Alderlake_P Matt Roper
2021-03-11 22:36 ` [Intel-gfx] [PATCH 44/56] drm/i915/adl_p: Define and use ADL-P specific DP translation tables Matt Roper
2021-03-11 22:36 ` [Intel-gfx] [PATCH 45/56] drm/i915/adl_p: Enable/disable loadgen sharing Matt Roper
2021-03-11 22:36 ` [Intel-gfx] [PATCH 46/56] drm/i915/adl_p: Add PLL Support Matt Roper
2021-03-11 22:36 ` [Intel-gfx] [PATCH 47/56] drm/i915/bigjoiner: Mode validation with uncompressed pipe joiner Matt Roper
2021-03-11 22:36 ` [Intel-gfx] [PATCH 48/56] drm/i915/bigjoiner: Avoid dsc_compute_config for uncompressed bigjoiner Matt Roper
2021-03-11 22:36 ` [Intel-gfx] [PATCH 49/56] drm/i915/bigjoiner: atomic commit changes for uncompressed joiner Matt Roper
2021-03-11 22:36 ` [Intel-gfx] [PATCH 50/56] drm/i915/adlp: Add PIPE_MISC2 programming Matt Roper
2021-03-11 22:36 ` [Intel-gfx] [PATCH 51/56] drm/i915/adl_p: Update memory bandwidth parameters Matt Roper
2021-03-11 22:36 ` [Intel-gfx] [PATCH 52/56] drm/i915/adl_p: Implement Wa_22011091694 Matt Roper
2021-03-11 22:36 ` [Intel-gfx] [PATCH 53/56] drm/i915/display/adl_p: Implement Wa_22011320316 Matt Roper
2021-03-11 22:36 ` [Intel-gfx] [PATCH 54/56] drm/i915/display/adl_p: Remove CCS support Matt Roper
2021-03-13  0:24   ` Srivatsa, Anusha
2021-03-11 22:36 ` [Intel-gfx] [PATCH 55/56] drm/i915/perf: Enable OA formats for ADL_P Matt Roper
2021-03-12 20:37   ` Dixit, Ashutosh
2021-03-11 22:36 ` [Intel-gfx] [PATCH 56/56] drm/i915/display/adl_p: Implement PSR changes Matt Roper
2021-03-13 19:49   ` Mun, Gwan-gyeong
2021-03-11 22:48 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for Introduce Alder Lake-P Patchwork
2021-03-11 22:50 ` [Intel-gfx] ✗ Fi.CI.SPARSE: " Patchwork
2021-03-11 23:14 ` [Intel-gfx] ✗ Fi.CI.BAT: failure " Patchwork

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