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From 8bd206a95f0351aad3236358cde6dd75f653e3b0 Mon Sep 17 00:00:00 2001
From: Rex Zhu <Rex.Zhu@amd.com>
Date: Wed, 8 Nov 2017 16:39:00 +0800
Subject: [PATCH 3076/4131] drm/amd/pp: Implement get_max_high_clocks for CI/VI
v2: add table length check.
DC component expect PP to give max engine clock and
memory clock through pp_get_display_mode_validation_clocks
on DGPU as well.
This patch can fix MultiGPU-Display blank
out with 1 IGPU-4k display and 2 DGPU-two 4K
displays.
Change-Id: I42beddb76d14ac627737a2b70a305f88c3077350
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Rex Zhu <Rex.Zhu@amd.com>
---
drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c | 20 ++++++++++++++++++++
1 file changed, 20 insertions(+)
diff --git a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
index e39b943..e1c16d5 100644
--- a/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
+++ b/drivers/gpu/drm/amd/powerplay/hwmgr/smu7_hwmgr.c
@@ -4652,6 +4652,25 @@ static int smu7_notify_cac_buffer_info(struct pp_hwmgr *hwmgr,
return 0;
}
+static int smu7_get_max_high_clocks(struct pp_hwmgr *hwmgr,
+ struct amd_pp_simple_clock_info *clocks)
+{
+ struct smu7_hwmgr *data = (struct smu7_hwmgr *)(hwmgr->backend);
+ struct smu7_single_dpm_table *sclk_table = &(data->dpm_table.sclk_table);
+ struct smu7_single_dpm_table *mclk_table = &(data->dpm_table.mclk_table);
+
+ if (clocks == NULL)
+ return -EINVAL;
+
+ clocks->memory_max_clock = mclk_table->count > 1 ?
+ mclk_table->dpm_levels[mclk_table->count-1].value :
+ mclk_table->dpm_levels[0].value;
+ clocks->engine_max_clock = sclk_table->count > 1 ?
+ sclk_table->dpm_levels[sclk_table->count-1].value :
+ sclk_table->dpm_levels[0].value;
+ return 0;
+}
+
static int smu7_get_thermal_temperature_range(struct pp_hwmgr *hwmgr,
struct PP_TemperatureRange *thermal_data)
{
@@ -4723,6 +4742,7 @@ static const struct pp_hwmgr_func smu7_hwmgr_funcs = {
.disable_smc_firmware_ctf = smu7_thermal_disable_alert,
.start_thermal_controller = smu7_start_thermal_controller,
.notify_cac_buffer_info = smu7_notify_cac_buffer_info,
+ .get_max_high_clocks = smu7_get_max_high_clocks,
.get_thermal_temperature_range = smu7_get_thermal_temperature_range,
};
--
2.7.4
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