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From: Matt Roper <matthew.d.roper@intel.com>
To: intel-gfx@lists.freedesktop.org
Cc: me@freedesktop.org
Subject: [Intel-gfx] [PATCH v2 39/50] drm/i915/adl_p: Enable/disable loadgen sharing
Date: Thu, 25 Mar 2021 11:07:09 -0700	[thread overview]
Message-ID: <20210325180720.401410-40-matthew.d.roper@intel.com> (raw)
In-Reply-To: <20210325180720.401410-1-matthew.d.roper@intel.com>

From: Mika Kahola <mika.kahola@intel.com>

Disable loadgen sharing for DP link rate 1.62 GHz and HDMI 5.94 GHz.
For all other modes, we can enable loadgen sharing feature.

BSpec: 55359

Cc: Imre Deak <imre.deak@intel.com>
Signed-off-by: Mika Kahola <mika.kahola@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_ddi.c | 8 ++++++++
 drivers/gpu/drm/i915/i915_reg.h          | 1 +
 2 files changed, 9 insertions(+)

diff --git a/drivers/gpu/drm/i915/display/intel_ddi.c b/drivers/gpu/drm/i915/display/intel_ddi.c
index 1a5213447db1..d58f6d297a2f 100644
--- a/drivers/gpu/drm/i915/display/intel_ddi.c
+++ b/drivers/gpu/drm/i915/display/intel_ddi.c
@@ -1460,6 +1460,14 @@ tgl_dkl_phy_ddi_vswing_sequence(struct intel_encoder *encoder,
 		val = intel_de_read(dev_priv, DKL_TX_DPCNTL2(tc_port));
 		val &= ~DKL_TX_DP20BITMODE;
 		intel_de_write(dev_priv, DKL_TX_DPCNTL2(tc_port), val);
+
+		if ((intel_crtc_has_dp_encoder(crtc_state) &&
+		    crtc_state->port_clock == 162000) ||
+		    (intel_crtc_has_type(crtc_state, INTEL_OUTPUT_HDMI) &&
+		    crtc_state->port_clock == 594000))
+			val |= DKL_TX_LOADGEN_SHARING_PMD_DISABLE;
+		else
+			val &= ~DKL_TX_LOADGEN_SHARING_PMD_DISABLE;
 	}
 }
 
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index f25f68f3b2f4..393071cde6d4 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -10887,6 +10887,7 @@ enum skl_power_gate {
 						     _DKL_TX_DPCNTL1)
 
 #define _DKL_TX_DPCNTL2				0x2C8
+#define  DKL_TX_LOADGEN_SHARING_PMD_DISABLE            REG_BIT(12)
 #define  DKL_TX_DP20BITMODE				(1 << 2)
 #define DKL_TX_DPCNTL2(tc_port) _MMIO(_PORT(tc_port, \
 						     _DKL_PHY1_BASE, \
-- 
2.25.4

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  parent reply	other threads:[~2021-03-25 18:08 UTC|newest]

Thread overview: 66+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-03-25 18:06 [Intel-gfx] [PATCH v2 00/50] Introduce Alder Lake-P Matt Roper
2021-03-25 18:06 ` [Intel-gfx] [PATCH v2 01/50] drm/i915/xelpd: add XE_LPD display characteristics Matt Roper
2021-03-25 18:06 ` [Intel-gfx] [PATCH v2 02/50] drm/i915/xelpd: Handle proper AUX interrupt bits Matt Roper
2021-03-25 18:06 ` [Intel-gfx] [PATCH v2 03/50] drm/i915/xelpd: Enhanced pipe underrun reporting Matt Roper
2021-03-25 18:06 ` [Intel-gfx] [PATCH v2 04/50] drm/i915/xelpd: Define plane capabilities Matt Roper
2021-03-25 18:06 ` [Intel-gfx] [PATCH v2 05/50] drm/i915/xelpd: Support 128k plane stride Matt Roper
2021-03-25 18:06 ` [Intel-gfx] [PATCH v2 06/50] drm/i915/xelpd: Handle new location of outputs D and E Matt Roper
2021-03-26 16:45   ` Imre Deak
2021-03-25 18:06 ` [Intel-gfx] [PATCH v2 07/50] drm/i915/xelpd: Add XE_LPD power wells Matt Roper
2021-03-25 18:06 ` [Intel-gfx] [PATCH v2 08/50] drm/i915/xelpd: Handle LPSP for XE_LPD Matt Roper
2021-03-25 18:06 ` [Intel-gfx] [PATCH v2 09/50] drm/i915/xelpd: Increase maximum watermark lines to 255 Matt Roper
2021-03-25 18:06 ` [Intel-gfx] [PATCH v2 10/50] drm/i915/xelpd: Required bandwidth increases when VT-d is active Matt Roper
2021-03-25 18:06 ` [Intel-gfx] [PATCH v2 11/50] drm/i915/xelpd: Add Wa_14011503030 Matt Roper
2021-03-25 21:06   ` Souza, Jose
2021-03-25 18:06 ` [Intel-gfx] [PATCH v2 12/50] drm/i915/display/dsc: Refactor intel_dp_dsc_compute_bpp Matt Roper
2021-03-25 18:06 ` [Intel-gfx] [PATCH v2 13/50] drm/i915/xelpd: Support DP1.4 compression BPPs Matt Roper
2021-03-25 18:06 ` [Intel-gfx] [PATCH v2 14/50] drm/i915: Get slice height before computing rc params Matt Roper
2021-03-25 18:06 ` [Intel-gfx] [PATCH v2 15/50] drm/i915/xelpd: Calculate VDSC RC parameters Matt Roper
2021-03-25 18:06 ` [Intel-gfx] [PATCH v2 16/50] drm/i915/xelpd: Add rc_qp_table for rcparams calculation Matt Roper
2021-04-07 12:58   ` Jani Nikula
2021-03-25 18:06 ` [Intel-gfx] [PATCH v2 17/50] drm/i915/xelpd: Add VRR guardband for VRR CTL Matt Roper
2021-03-25 18:06 ` [Intel-gfx] [PATCH v2 18/50] drm/i915/adl_p: Add PCI Devices IDs Matt Roper
2021-03-25 18:06 ` [Intel-gfx] [PATCH v2 19/50] drm/i915/adl_p: ADL_P device info enabling Matt Roper
2021-03-25 18:06 ` [Intel-gfx] [PATCH v2 20/50] drm/i915/adl_p: Add PCH support Matt Roper
2021-03-25 18:06 ` [Intel-gfx] [PATCH v2 21/50] drm/i915/adl_p: Add dedicated SAGV watermarks Matt Roper
2021-03-25 18:06 ` [Intel-gfx] [PATCH v2 22/50] drm/i915/adl_p: Extend PLANE_WM bits for blocks & lines Matt Roper
2021-03-25 18:06 ` [Intel-gfx] [PATCH v2 23/50] drm/i915/adl_p: Load DMC Matt Roper
2021-03-25 18:06 ` [Intel-gfx] [PATCH v2 24/50] drm/i915/adl_p: Setup ports/phys Matt Roper
2021-03-25 18:06 ` [Intel-gfx] [PATCH v2 25/50] drm/i915/adl_p: Add cdclk support for ADL-P Matt Roper
2021-03-25 18:06 ` [Intel-gfx] [PATCH v2 26/50] drm/i915/display/tc: Rename safe_mode functions ownership Matt Roper
2021-03-26 16:31   ` Imre Deak
2021-03-25 18:06 ` [Intel-gfx] [PATCH v2 27/50] drm/i915/adl_p: Handle TC cold Matt Roper
2021-03-26 16:30   ` Imre Deak
2021-03-25 18:06 ` [Intel-gfx] [PATCH v2 28/50] drm/i915/adl_p: Implement TC sequences Matt Roper
2021-03-26 16:03   ` Imre Deak
2021-03-25 18:06 ` [Intel-gfx] [PATCH v2 29/50] drm/i915/adl_p: Enable modular fia Matt Roper
2021-03-26 16:31   ` Imre Deak
2021-03-25 18:07 ` [Intel-gfx] [PATCH v2 30/50] drm/i915/adl_p: Don't config MBUS and DBUF during display initialization Matt Roper
2021-03-25 18:07 ` [Intel-gfx] [PATCH v2 31/50] drm/i915/adl_p: Add ddb allocation support Matt Roper
2021-03-25 18:07 ` [Intel-gfx] [PATCH v2 32/50] drm/i915: Introduce MBUS relative dbuf offsets Matt Roper
2021-03-25 18:07 ` [Intel-gfx] [PATCH v2 33/50] drm/i915: Move intel_modeset_all_pipes() Matt Roper
2021-03-25 18:07 ` [Intel-gfx] [PATCH v2 34/50] drm/i915/adl_p: MBUS programming Matt Roper
2021-03-25 18:07 ` [Intel-gfx] [PATCH v2 35/50] drm/i915/adl_p: Tx escape clock with DSI Matt Roper
2021-03-25 18:07 ` [Intel-gfx] [PATCH v2 36/50] drm/i915/adl_p: Add initial ADL_P Workarounds Matt Roper
2021-03-25 18:07 ` [Intel-gfx] [PATCH v2 37/50] drm/i915/adlp: Define GuC/HuC for Alderlake_P Matt Roper
2021-03-25 18:07 ` [Intel-gfx] [PATCH v2 38/50] drm/i915/adl_p: Define and use ADL-P specific DP translation tables Matt Roper
2021-03-25 18:07 ` Matt Roper [this message]
2021-03-26 16:18   ` [Intel-gfx] [PATCH v2 39/50] drm/i915/adl_p: Enable/disable loadgen sharing Imre Deak
2021-03-25 18:07 ` [Intel-gfx] [PATCH v2 40/50] drm/i915/adl_p: Add PLL Support Matt Roper
2021-03-26 16:25   ` Imre Deak
2021-03-25 18:07 ` [Intel-gfx] [PATCH v2 41/50] drm/i915/bigjoiner: Mode validation with uncompressed pipe joiner Matt Roper
2021-03-25 18:07 ` [Intel-gfx] [PATCH v2 42/50] drm/i915/bigjoiner: Avoid dsc_compute_config for uncompressed bigjoiner Matt Roper
2021-03-25 18:07 ` [Intel-gfx] [PATCH v2 43/50] drm/i915/bigjoiner: atomic commit changes for uncompressed joiner Matt Roper
2021-03-25 18:07 ` [Intel-gfx] [PATCH v2 44/50] drm/i915/adlp: Add PIPE_MISC2 programming Matt Roper
2021-03-25 18:07 ` [Intel-gfx] [PATCH v2 45/50] drm/i915/adl_p: Update memory bandwidth parameters Matt Roper
2021-03-25 18:07 ` [Intel-gfx] [PATCH v2 46/50] drm/i915/adl_p: Implement Wa_22011091694 Matt Roper
2021-03-25 18:07 ` [Intel-gfx] [PATCH v2 47/50] drm/i915/display/adl_p: Implement Wa_22011320316 Matt Roper
2021-03-25 18:07 ` [Intel-gfx] [PATCH v2 48/50] drm/i915/display/adl_p: Remove CCS support Matt Roper
2021-03-25 18:07 ` [Intel-gfx] [PATCH v2 49/50] drm/i915/perf: Enable OA formats for ADL_P Matt Roper
2021-03-25 18:07 ` [Intel-gfx] [PATCH v2 50/50] drm/i915/display/adl_p: Implement PSR changes Matt Roper
2021-03-25 22:43 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for Introduce Alder Lake-P (rev2) Patchwork
2021-03-25 22:45 ` [Intel-gfx] ✗ Fi.CI.SPARSE: " Patchwork
2021-03-25 22:48 ` [Intel-gfx] ✗ Fi.CI.DOCS: " Patchwork
2021-03-25 23:12 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork
2021-03-26  4:33 ` [Intel-gfx] ✗ Fi.CI.IGT: failure " Patchwork
2021-04-21 11:03 ` [Intel-gfx] [PATCH v2 00/50] Introduce Alder Lake-P Jani Nikula

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