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FAILED: patch "[PATCH] drm/amd/display: Use DRAM speed from validation for dummy" failed to apply to 6.1-stable tree

PATCH [email protected] 1 participant 1 message Jan 27, 2024

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The patch below does not apply to the 6.1-stable tree.
If someone wants it applied there, or to any other stable or longterm tree, then please email the backport, including the original git commit id to <[email protected]>.

To reproduce the conflict and resubmit, you may use the following commands:

git fetch https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/ linux-6.1.y
git checkout FETCH_HEAD
git cherry-pick -x 40436ce7ccfec5c616e2e48d0ec2c905637c7397
# <resolve conflicts, build, test, etc.>
git commit -s
git send-email --to '<[email protected]>' --in-reply-to '2024012732-empirical-resolved-ebda@gregkh' --subject-prefix 'PATCH 6.1.y' HEAD^..

Possible dependencies:

40436ce7ccfe ("drm/amd/display: Use DRAM speed from validation for dummy p-state")

thanks,

greg k-h

------------------ original commit in Linus's tree ------------------

From 40436ce7ccfec5c616e2e48d0ec2c905637c7397 Mon Sep 17 00:00:00 2001
From: Alvin Lee <[email protected]>
Date: Tue, 7 Nov 2023 17:01:49 -0500
Subject: [PATCH] drm/amd/display: Use DRAM speed from validation for dummy
p-state

[Description]
When choosing which dummy p-state latency to use, we need to use the DRAM speed from validation. The DRAMSpeed DML variable can change because we use different input params to DML when populating watermarks set B.

drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c +2 -1
index e7f13e28caa3..92e2ddc9ab7e 100644
@@ -2231,6 +2231,7 @@ void dcn32_calculate_wm_and_dlg_fpu(struct dc *dc, struct dc_state *context,
 	int i, pipe_idx, vlevel_temp = 0;
 	double dcfclk = dcn3_2_soc.clock_limits[0].dcfclk_mhz;
 	double dcfclk_from_validation = context->bw_ctx.dml.vba.DCFCLKState[vlevel][context->bw_ctx.dml.vba.maxMpcComb];
+	double dram_speed_from_validation = context->bw_ctx.dml.vba.DRAMSpeed;
 	double dcfclk_from_fw_based_mclk_switching = dcfclk_from_validation;
 	bool pstate_en = context->bw_ctx.dml.vba.DRAMClockChangeSupport[vlevel][context->bw_ctx.dml.vba.maxMpcComb] !=
 			dm_dram_clock_change_unsupported;
@@ -2418,7 +2419,7 @@ void dcn32_calculate_wm_and_dlg_fpu(struct dc *dc, struct dc_state *context,
 	}
 
 	if (dc->clk_mgr->bw_params->wm_table.nv_entries[WM_C].valid) {
-		min_dram_speed_mts = context->bw_ctx.dml.vba.DRAMSpeed;
+		min_dram_speed_mts = dram_speed_from_validation;
 		min_dram_speed_mts_margin = 160;
 
 		context->bw_ctx.dml.soc.dram_clock_change_latency_us =