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From 8841cbb711eaa7b8ece13e201426b6ec4a932c87 Mon Sep 17 00:00:00 2001
From: Chengming Gui <Jack.Gui@amd.com>
Date: Thu, 17 Jan 2019 18:45:16 +0800
Subject: [PATCH 1449/2940] drm/amd/powerplay: add display_config_changed for
SMU11.
add display_config_changed to support sys interface for SMU11.
Signed-off-by: Chengming Gui <Jack.Gui@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
---
drivers/gpu/drm/amd/powerplay/vega20_ppt.c | 42 ++++++++++++++++++++++
1 file changed, 42 insertions(+)
diff --git a/drivers/gpu/drm/amd/powerplay/vega20_ppt.c b/drivers/gpu/drm/amd/powerplay/vega20_ppt.c
index 1908b91f22c6..0b13c9319fa9 100644
--- a/drivers/gpu/drm/amd/powerplay/vega20_ppt.c
+++ b/drivers/gpu/drm/amd/powerplay/vega20_ppt.c
@@ -1376,6 +1376,48 @@ vega20_set_uclk_to_highest_dpm_level(struct smu_context *smu,
return ret;
}
+static int vega20_display_config_changed(struct smu_context *smu)
+{
+ int ret = 0;
+ struct vega20_dpm_table *dpm_table = smu->smu_dpm.dpm_context;
+
+ if (!smu->funcs)
+ return -EINVAL;
+
+ if (!smu->smu_dpm.dpm_context ||
+ !smu->smu_table.tables ||
+ !smu->smu_table.tables[TABLE_WATERMARKS].cpu_addr)
+ return -EINVAL;
+
+ smu_send_smc_msg_with_param(smu, SMU_MSG_NumOfDisplays, 0);
+ ret = vega20_set_uclk_to_highest_dpm_level(smu,
+ &dpm_table->mem_table);
+ if (ret) {
+ pr_err("Failed to set uclk to highest dpm level");
+ return ret;
+ }
+
+ if ((smu->watermarks_bitmap & WATERMARKS_EXIST) &&
+ !(smu->watermarks_bitmap & WATERMARKS_LOADED)) {
+ ret = smu->funcs->write_watermarks_table(smu);
+ if (ret) {
+ pr_err("Failed to update WMTABLE!");
+ return ret;
+ }
+ smu->watermarks_bitmap |= WATERMARKS_LOADED;
+ }
+
+ if ((smu->watermarks_bitmap & WATERMARKS_EXIST) &&
+ smu_feature_is_supported(smu, FEATURE_DPM_DCEFCLK_BIT) &&
+ smu_feature_is_supported(smu, FEATURE_DPM_SOCCLK_BIT)) {
+ smu_send_smc_msg_with_param(smu,
+ SMU_MSG_NumOfDisplays,
+ smu->display_config->num_display);
+ }
+
+ return ret;
+}
+
static const struct pptable_funcs vega20_ppt_funcs = {
.alloc_dpm_context = vega20_allocate_dpm_context,
.store_powerplay_table = vega20_store_powerplay_table,
--
2.17.1
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