[PATCH 2/4] drm/amd/pp: Implement update_dpm_settings on Polaris

[Rex Zhu]

Change-Id: I4533826ef6e18df125ae4445016873be3b5fe0ce
Signed-off-by: Rex Zhu <Rex.Zhu at amd.com>
---
 .../drm/amd/powerplay/smumgr/polaris10_smumgr.c    | 104 +++++++++++++++++++++
 1 file changed, 104 insertions(+)

diff --git a/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c b/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c
index bfb2c85..559572d 100644
--- a/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c
+++ b/drivers/gpu/drm/amd/powerplay/smumgr/polaris10_smumgr.c
@@ -2575,6 +2575,109 @@ static int polaris10_populate_requested_graphic_levels(struct pp_hwmgr *hwmgr,
 				array_size, SMC_RAM_END);
 }
 
+uint32_t polaris10_set_field_to_u32(u32 offset, u32 original_data, u32 field, u32 size)
+{
+	u32 mask = 0;
+	u32 shift = 0;
+
+	shift = (offset % 4) << 3;
+	if (size == sizeof(uint8_t))
+		mask = 0xFF << shift;
+	else if (size == sizeof(uint16_t))
+		mask = 0xFFFF << shift;
+
+	original_data &= ~mask;
+	original_data |= (field << shift);
+	return original_data;
+}
+
+static int polaris10_update_dpm_settings(struct pp_hwmgr *hwmgr,
+				void *profile_setting)
+{
+	struct polaris10_smumgr *smu_data = (struct polaris10_smumgr *)
+			(hwmgr->smu_backend);
+	struct profile_mode_setting *setting;
+	struct SMU74_Discrete_GraphicsLevel *levels =
+			smu_data->smc_state_table.GraphicsLevel;
+	uint32_t array = smu_data->smu7_data.dpm_table_start +
+			offsetof(SMU74_Discrete_DpmTable, GraphicsLevel);
+
+	uint32_t mclk_array = smu_data->smu7_data.dpm_table_start +
+			offsetof(SMU74_Discrete_DpmTable, MemoryLevel);
+	struct SMU74_Discrete_MemoryLevel *mclk_levels =
+			smu_data->smc_state_table.MemoryLevel;
+	uint32_t i;
+	uint32_t offset, up_hyst_offset, down_hyst_offset, clk_activity_offset, tmp;
+
+	if (profile_setting == NULL)
+		return -EINVAL;
+
+	setting = (struct profile_mode_setting *)profile_setting;
+
+	if (setting->bupdate_sclk) {
+		for (i = 0; i < smu_data->smc_state_table.GraphicsDpmLevelCount; i++) {
+			if (levels[i].ActivityLevel !=
+				cpu_to_be16(setting->sclk_activity)) {
+				levels[i].ActivityLevel = cpu_to_be16(setting->sclk_activity);
+
+				clk_activity_offset = array + (sizeof(SMU74_Discrete_GraphicsLevel) * i)
+						+ offsetof(SMU74_Discrete_GraphicsLevel, ActivityLevel);
+				offset = clk_activity_offset & ~0x3;
+				tmp = PP_HOST_TO_SMC_UL(cgs_read_ind_register(hwmgr->device, CGS_IND_REG__SMC, offset));
+				tmp = polaris10_set_field_to_u32(clk_activity_offset, tmp, levels[i].ActivityLevel, sizeof(uint16_t));
+				cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC, offset, PP_HOST_TO_SMC_UL(tmp));
+
+			}
+			if (levels[i].UpHyst != setting->sclk_up_hyst ||
+				levels[i].DownHyst != setting->sclk_down_hyst) {
+				levels[i].UpHyst = setting->sclk_up_hyst;
+				levels[i].DownHyst = setting->sclk_down_hyst;
+				up_hyst_offset = array + (sizeof(SMU74_Discrete_GraphicsLevel) * i)
+						+ offsetof(SMU74_Discrete_GraphicsLevel, UpHyst);
+				down_hyst_offset = array + (sizeof(SMU74_Discrete_GraphicsLevel) * i)
+						+ offsetof(SMU74_Discrete_GraphicsLevel, DownHyst);
+				offset = up_hyst_offset & ~0x3;
+				tmp = PP_HOST_TO_SMC_UL(cgs_read_ind_register(hwmgr->device, CGS_IND_REG__SMC, offset));
+				tmp = polaris10_set_field_to_u32(up_hyst_offset, tmp, levels[i].UpHyst, sizeof(uint8_t));
+				tmp = polaris10_set_field_to_u32(down_hyst_offset, tmp, levels[i].DownHyst, sizeof(uint8_t));
+				cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC, offset, PP_HOST_TO_SMC_UL(tmp));
+			}
+		}
+	}
+
+	if (setting->bupdate_mclk) {
+		for (i = 0; i < smu_data->smc_state_table.MemoryDpmLevelCount; i++) {
+			if (mclk_levels[i].ActivityLevel !=
+				cpu_to_be16(setting->mclk_activity)) {
+				mclk_levels[i].ActivityLevel = cpu_to_be16(setting->mclk_activity);
+
+				clk_activity_offset = mclk_array + (sizeof(SMU74_Discrete_MemoryLevel) * i)
+						+ offsetof(SMU74_Discrete_MemoryLevel, ActivityLevel);
+				offset = clk_activity_offset & ~0x3;
+				tmp = PP_HOST_TO_SMC_UL(cgs_read_ind_register(hwmgr->device, CGS_IND_REG__SMC, offset));
+				tmp = polaris10_set_field_to_u32(clk_activity_offset, tmp, mclk_levels[i].ActivityLevel, sizeof(uint16_t));
+				cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC, offset, PP_HOST_TO_SMC_UL(tmp));
+
+			}
+			if (mclk_levels[i].UpHyst != setting->mclk_up_hyst ||
+				mclk_levels[i].DownHyst != setting->mclk_down_hyst) {
+				mclk_levels[i].UpHyst = setting->mclk_up_hyst;
+				mclk_levels[i].DownHyst = setting->mclk_down_hyst;
+				up_hyst_offset = mclk_array + (sizeof(SMU74_Discrete_MemoryLevel) * i)
+						+ offsetof(SMU74_Discrete_MemoryLevel, UpHyst);
+				down_hyst_offset = mclk_array + (sizeof(SMU74_Discrete_MemoryLevel) * i)
+						+ offsetof(SMU74_Discrete_MemoryLevel, DownHyst);
+				offset = up_hyst_offset & ~0x3;
+				tmp = PP_HOST_TO_SMC_UL(cgs_read_ind_register(hwmgr->device, CGS_IND_REG__SMC, offset));
+				tmp = polaris10_set_field_to_u32(up_hyst_offset, tmp, mclk_levels[i].UpHyst, sizeof(uint8_t));
+				tmp = polaris10_set_field_to_u32(down_hyst_offset, tmp, mclk_levels[i].DownHyst, sizeof(uint8_t));
+				cgs_write_ind_register(hwmgr->device, CGS_IND_REG__SMC, offset, PP_HOST_TO_SMC_UL(tmp));
+			}
+		}
+	}
+	return 0;
+}
+
 const struct pp_smumgr_func polaris10_smu_funcs = {
 	.smu_init = polaris10_smu_init,
 	.smu_fini = smu7_smu_fini,
@@ -2599,4 +2702,5 @@ static int polaris10_populate_requested_graphic_levels(struct pp_hwmgr *hwmgr,
 	.is_dpm_running = polaris10_is_dpm_running,
 	.populate_requested_graphic_levels = polaris10_populate_requested_graphic_levels,
 	.is_hw_avfs_present = polaris10_is_hw_avfs_present,
+	.update_dpm_settings = polaris10_update_dpm_settings,
 };
-- 
1.9.1