drm/amd/powerplay: implement smu dpm context functions for smu11

This patch implements smu dpm context functions for smu v11.
Signed-off-by: Kevin Wang <Kevin1.Wang@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/powerplay/inc/amdgpu_smu.h

@@ -49,6 +49,11 @@ struct smu_table_context
 	uint32_t			table_count;
 };
 
+struct smu_dpm_context {
+	void *dpm_context;
+	uint32_t dpm_context_size;
+};
+
 struct smu_context
 {
 	struct amdgpu_device            *adev;
@@ -57,6 +62,7 @@ struct smu_context
 	struct mutex			mutex;
 
 	struct smu_table_context	smu_table;
+	struct smu_dpm_context		smu_dpm;
 };
 
 struct smu_funcs

drivers/gpu/drm/amd/powerplay/inc/smu_v11_0.h

@@ -36,6 +36,32 @@
 #define smnMP0_FW_INTF			0x30101c0
 #define smnMP1_PUB_CTRL			0x3010b14
 
+
+struct smu_11_0_dpm_table {
+	uint32_t    min;        /* MHz */
+	uint32_t    max;        /* MHz */
+};
+
+struct smu_11_0_dpm_tables {
+	struct smu_11_0_dpm_table        soc_table;
+	struct smu_11_0_dpm_table        gfx_table;
+	struct smu_11_0_dpm_table        uclk_table;
+	struct smu_11_0_dpm_table        eclk_table;
+	struct smu_11_0_dpm_table        vclk_table;
+	struct smu_11_0_dpm_table        dclk_table;
+	struct smu_11_0_dpm_table        dcef_table;
+	struct smu_11_0_dpm_table        pixel_table;
+	struct smu_11_0_dpm_table        display_table;
+	struct smu_11_0_dpm_table        phy_table;
+	struct smu_11_0_dpm_table        fclk_table;
+};
+
+struct smu_11_0_dpm_context {
+	struct smu_11_0_dpm_tables  dpm_tables;
+	uint32_t                    workload_policy_mask;
+	uint32_t                    dcef_min_ds_clk;
+};
+
 void smu_v11_0_set_smu_funcs(struct smu_context *smu);
 
 #endif

drivers/gpu/drm/amd/powerplay/smu_v11_0.c

@@ -234,10 +234,40 @@ static int smu_v11_0_read_pptable_from_vbios(struct smu_context *smu)
 	return 0;
 }
 
+static int smu_v11_0_init_dpm_context(struct smu_context *smu)
+{
+	struct smu_dpm_context *smu_dpm = &smu->smu_dpm;
+
+	if (smu_dpm->dpm_context || smu_dpm->dpm_context_size != 0)
+		return -EINVAL;
+
+	smu_dpm->dpm_context = kzalloc(sizeof(struct smu_11_0_dpm_context), GFP_KERNEL);
+	if (!smu_dpm->dpm_context)
+		return -ENOMEM;
+	smu_dpm->dpm_context_size = sizeof(struct smu_11_0_dpm_context);
+
+	return 0;
+}
+
+static int smu_v11_0_fini_dpm_context(struct smu_context *smu)
+{
+	struct smu_dpm_context *smu_dpm = &smu->smu_dpm;
+
+	if (!smu_dpm->dpm_context || smu_dpm->dpm_context_size == 0)
+		return -EINVAL;
+
+	kfree(smu_dpm->dpm_context);
+	smu_dpm->dpm_context = NULL;
+	smu_dpm->dpm_context_size = 0;
+
+	return 0;
+}
+
 static int smu_v11_0_init_smc_tables(struct smu_context *smu)
 {
 	struct smu_table_context *smu_table = &smu->smu_table;
 	struct smu_table *tables = NULL;
+	int ret = 0;
 
 	if (smu_table->tables || smu_table->table_count != 0)
 		return -EINVAL;
@@ -258,12 +288,17 @@ static int smu_v11_0_init_smc_tables(struct smu_context *smu)
 	SMU_TABLE_INIT(tables, TABLE_OVERDRIVE, sizeof(OverDriveTable_t),
 		       PAGE_SIZE, AMDGPU_GEM_DOMAIN_VRAM);
 
+	ret = smu_v11_0_init_dpm_context(smu);
+	if (ret)
+		return ret;
+
 	return 0;
 }
 
 static int smu_v11_0_fini_smc_tables(struct smu_context *smu)
 {
 	struct smu_table_context *smu_table = &smu->smu_table;
+	int ret = 0;
 
 	if (!smu_table->tables || smu_table->table_count == 0)
 		return -EINVAL;
@@ -272,6 +307,9 @@ static int smu_v11_0_fini_smc_tables(struct smu_context *smu)
 	smu_table->tables = NULL;
 	smu_table->table_count = 0;
 
+	ret = smu_v11_0_fini_dpm_context(smu);
+	if (ret)
+		return ret;
 	return 0;
 
 }