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From: Sasha Levin <sashal@kernel.org>
To: linux-kernel@vger.kernel.org, stable@vger.kernel.org
Cc: Jun Lei <jun.lei@amd.com>,
	Aurabindo Pillai <aurabindo.pillai@amd.com>,
	Alex Deucher <alexander.deucher@amd.com>,
	Sasha Levin <sashal@kernel.org>,
	amd-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org
Subject: [PATCH AUTOSEL 5.4 12/15] drm/amd/display: update nv1x stutter latencies
Date: Mon, 21 Sep 2020 10:40:51 -0400	[thread overview]
Message-ID: <20200921144054.2135602-12-sashal@kernel.org> (raw)
In-Reply-To: <20200921144054.2135602-1-sashal@kernel.org>

From: Jun Lei <jun.lei@amd.com>

[ Upstream commit c4790a8894232f39c25c7c546c06efe074e63384 ]

[why]
Recent characterization shows increased stutter latencies on some SKUs,
leading to underflow.

[how]
Update SOC params to account for this worst case latency.

Signed-off-by: Jun Lei <jun.lei@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
index 05b98eadc2899..46afd048c1ea3 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
@@ -340,8 +340,8 @@ struct _vcs_dpi_soc_bounding_box_st dcn2_0_nv14_soc = {
 			},
 		},
 	.num_states = 5,
-	.sr_exit_time_us = 8.6,
-	.sr_enter_plus_exit_time_us = 10.9,
+	.sr_exit_time_us = 11.6,
+	.sr_enter_plus_exit_time_us = 13.9,
 	.urgent_latency_us = 4.0,
 	.urgent_latency_pixel_data_only_us = 4.0,
 	.urgent_latency_pixel_mixed_with_vm_data_us = 4.0,
-- 
2.25.1


  parent reply	other threads:[~2020-09-21 14:43 UTC|newest]

Thread overview: 17+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-21 14:40 [PATCH AUTOSEL 5.4 01/15] device_cgroup: Fix RCU list debugging warning Sasha Levin
2020-09-21 14:40 ` [PATCH AUTOSEL 5.4 02/15] ASoC: pcm3168a: ignore 0 Hz settings Sasha Levin
2020-09-21 14:40 ` [PATCH AUTOSEL 5.4 03/15] ASoC: wm8994: Skip setting of the WM8994_MICBIAS register for WM1811 Sasha Levin
2020-09-21 14:40 ` [PATCH AUTOSEL 5.4 04/15] ASoC: wm8994: Ensure the device is resumed in wm89xx_mic_detect functions Sasha Levin
2020-09-21 14:40 ` [PATCH AUTOSEL 5.4 05/15] ASoC: Intel: bytcr_rt5640: Add quirk for MPMAN Converter9 2-in-1 Sasha Levin
2020-09-21 14:40 ` [PATCH AUTOSEL 5.4 06/15] RISC-V: Take text_mutex in ftrace_init_nop() Sasha Levin
2020-09-21 14:40 ` [PATCH AUTOSEL 5.4 07/15] i2c: aspeed: Mask IRQ status to relevant bits Sasha Levin
2020-09-21 14:40 ` [PATCH AUTOSEL 5.4 08/15] s390/init: add missing __init annotations Sasha Levin
2020-09-21 14:40 ` [PATCH AUTOSEL 5.4 09/15] lockdep: fix order in trace_hardirqs_off_caller() Sasha Levin
2020-09-21 14:40 ` [PATCH AUTOSEL 5.4 10/15] EDAC/ghes: Check whether the driver is on the safe list correctly Sasha Levin
2020-09-21 14:40 ` [PATCH AUTOSEL 5.4 11/15] drm/amdkfd: fix a memory leak issue Sasha Levin
2020-09-21 14:40 ` Sasha Levin [this message]
2020-09-21 14:40 ` [PATCH AUTOSEL 5.4 13/15] drm/amdgpu/dc: Require primary plane to be enabled whenever the CRTC is Sasha Levin
2020-09-21 14:48   ` Michel Dänzer
2020-09-22 14:25     ` Sasha Levin
2020-09-21 14:40 ` [PATCH AUTOSEL 5.4 14/15] i2c: core: Call i2c_acpi_install_space_handler() before i2c_acpi_register_devices() Sasha Levin
2020-09-21 14:40 ` [PATCH AUTOSEL 5.4 15/15] objtool: Fix noreturn detection for ignored functions Sasha Levin

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