linux-kernel - [PATCH 4.18 222/235] drm/amd/pp: Send khz clock values to DC for smu7/8

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Date:   Mon, 24 Sep 2018 13:53:28 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Harry Wentland <harry.wentland@....com>,
        Alex Deucher <alexander.deucher@....com>, rex.zhu@....com,
        Sasha Levin <alexander.levin@...rosoft.com>
Subject: [PATCH 4.18 222/235] drm/amd/pp: Send khz clock values to DC for smu7/8

4.18-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Harry Wentland <harry.wentland@....com>

[ Upstream commit c3cb424a086921f6bb0449b10d998352a756d6d5 ]

The previous change wasn't covering smu 7 and 8 and therefore DC was
seeing wrong clock values.

This fixes an issue where the pipes seem to hang with a 4k DP and 1080p
HDMI display.

Fixes: c3df50abc84b ("drm/amd/pp: Convert clock unit to KHz as defined")
Signed-off-by: Harry Wentland <harry.wentland@....com>
Acked-by: Alex Deucher <alexander.deucher@....com>
Cc:rex.zhu@....com
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Sasha Levin <alexander.levin@...rosoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c |    8 ++++----
 drivers/gpu/drm/amd/powerplay/hwmgr/smu8_hwmgr.c |    6 +++---
 2 files changed, 7 insertions(+), 7 deletions(-)

--- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
@@ -4555,12 +4555,12 @@ static int smu7_get_sclks(struct pp_hwmg
 			return -EINVAL;
 		dep_sclk_table = table_info->vdd_dep_on_sclk;
 		for (i = 0; i < dep_sclk_table->count; i++)
-			clocks->clock[i] = dep_sclk_table->entries[i].clk;
+			clocks->clock[i] = dep_sclk_table->entries[i].clk * 10;
 		clocks->count = dep_sclk_table->count;
 	} else if (hwmgr->pp_table_version == PP_TABLE_V0) {
 		sclk_table = hwmgr->dyn_state.vddc_dependency_on_sclk;
 		for (i = 0; i < sclk_table->count; i++)
-			clocks->clock[i] = sclk_table->entries[i].clk;
+			clocks->clock[i] = sclk_table->entries[i].clk * 10;
 		clocks->count = sclk_table->count;
 	}
 
@@ -4592,7 +4592,7 @@ static int smu7_get_mclks(struct pp_hwmg
 			return -EINVAL;
 		dep_mclk_table = table_info->vdd_dep_on_mclk;
 		for (i = 0; i < dep_mclk_table->count; i++) {
-			clocks->clock[i] = dep_mclk_table->entries[i].clk;
+			clocks->clock[i] = dep_mclk_table->entries[i].clk * 10;
 			clocks->latency[i] = smu7_get_mem_latency(hwmgr,
 						dep_mclk_table->entries[i].clk);
 		}
@@ -4600,7 +4600,7 @@ static int smu7_get_mclks(struct pp_hwmg
 	} else if (hwmgr->pp_table_version == PP_TABLE_V0) {
 		mclk_table = hwmgr->dyn_state.vddc_dependency_on_mclk;
 		for (i = 0; i < mclk_table->count; i++)
-			clocks->clock[i] = mclk_table->entries[i].clk;
+			clocks->clock[i] = mclk_table->entries[i].clk * 10;
 		clocks->count = mclk_table->count;
 	}
 	return 0;
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu8_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu8_hwmgr.c
@@ -1605,17 +1605,17 @@ static int smu8_get_clock_by_type(struct
 	switch (type) {
 	case amd_pp_disp_clock:
 		for (i = 0; i < clocks->count; i++)
-			clocks->clock[i] = data->sys_info.display_clock[i];
+			clocks->clock[i] = data->sys_info.display_clock[i] * 10;
 		break;
 	case amd_pp_sys_clock:
 		table = hwmgr->dyn_state.vddc_dependency_on_sclk;
 		for (i = 0; i < clocks->count; i++)
-			clocks->clock[i] = table->entries[i].clk;
+			clocks->clock[i] = table->entries[i].clk * 10;
 		break;
 	case amd_pp_mem_clock:
 		clocks->count = SMU8_NUM_NBPMEMORYCLOCK;
 		for (i = 0; i < clocks->count; i++)
-			clocks->clock[i] = data->sys_info.nbp_memory_clock[clocks->count - 1 - i];
+			clocks->clock[i] = data->sys_info.nbp_memory_clock[clocks->count - 1 - i] * 10;
 		break;
 	default:
 		return -1;