Commit dd8cb189 authored by Nikola Cornij's avatar Nikola Cornij Committed by Alex Deucher
Browse files

drm/amd/display: Increase watermark latencies for DCN3.1 



[why]
The original latencies were causing underflow in some modes

[how]
Replace with the up-to-date watermark values based on new measurments

Reviewed-by: default avatarAhmad Othman <ahmad.othman@amd.com>
Acked-by: default avatarAgustin Gutierrez Sanchez <agustin.gutierrez@amd.com>
Signed-off-by: default avatarNikola Cornij <nikola.cornij@amd.com>
Tested-by: default avatarDaniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
parent 4835ea6c

drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c

+8 −8
Original line number Diff line number Diff line
@@ -366,32 +366,32 @@ static struct wm_table lpddr5_wm_table = { 
			.wm_inst = WM_A,

			.wm_type = WM_TYPE_PSTATE_CHG,

			.pstate_latency_us = 11.65333,

			.sr_exit_time_us = 5.32,

			.sr_enter_plus_exit_time_us = 6.38,

			.sr_exit_time_us = 11.5,

			.sr_enter_plus_exit_time_us = 14.5,

			.valid = true,

		},

		{

			.wm_inst = WM_B,

			.wm_type = WM_TYPE_PSTATE_CHG,

			.pstate_latency_us = 11.65333,

			.sr_exit_time_us = 9.82,

			.sr_enter_plus_exit_time_us = 11.196,

			.sr_exit_time_us = 11.5,

			.sr_enter_plus_exit_time_us = 14.5,

			.valid = true,

		},

		{

			.wm_inst = WM_C,

			.wm_type = WM_TYPE_PSTATE_CHG,

			.pstate_latency_us = 11.65333,

			.sr_exit_time_us = 9.89,

			.sr_enter_plus_exit_time_us = 11.24,

			.sr_exit_time_us = 11.5,

			.sr_enter_plus_exit_time_us = 14.5,

			.valid = true,

		},

		{

			.wm_inst = WM_D,

			.wm_type = WM_TYPE_PSTATE_CHG,

			.pstate_latency_us = 11.65333,

			.sr_exit_time_us = 9.748,

			.sr_enter_plus_exit_time_us = 11.102,

			.sr_exit_time_us = 11.5,

			.sr_enter_plus_exit_time_us = 14.5,

			.valid = true,

		},

	}