drm/radeon/cik: implement some more atom helpers for DPM

Required for DPM on CIK.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index 4ccd61f..27de73c 100644 (file)
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -3077,6 +3077,121 @@ int radeon_atom_get_leakage_vddc_based_on_leakage_idx(struct radeon_device *rdev
        return radeon_atom_get_max_vddc(rdev, VOLTAGE_TYPE_VDDC, leakage_idx, voltage);
 }
 
+int radeon_atom_get_leakage_id_from_vbios(struct radeon_device *rdev,
+                                         u16 *leakage_id)
+{
+       union set_voltage args;
+       int index = GetIndexIntoMasterTable(COMMAND, SetVoltage);
+       u8 frev, crev;
+
+       if (!atom_parse_cmd_header(rdev->mode_info.atom_context, index, &frev, &crev))
+               return -EINVAL;
+
+       switch (crev) {
+       case 3:
+       case 4:
+               args.v3.ucVoltageType = 0;
+               args.v3.ucVoltageMode = ATOM_GET_LEAKAGE_ID;
+               args.v3.usVoltageLevel = 0;
+
+               atom_execute_table(rdev->mode_info.atom_context, index, (uint32_t *)&args);
+
+               *leakage_id = le16_to_cpu(args.v3.usVoltageLevel);
+               break;
+       default:
+               DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
+               return -EINVAL;
+       }
+
+       return 0;
+}
+
+int radeon_atom_get_leakage_vddc_based_on_leakage_params(struct radeon_device *rdev,
+                                                        u16 *vddc, u16 *vddci,
+                                                        u16 virtual_voltage_id,
+                                                        u16 vbios_voltage_id)
+{
+       int index = GetIndexIntoMasterTable(DATA, ASIC_ProfilingInfo);
+       u8 frev, crev;
+       u16 data_offset, size;
+       int i, j;
+       ATOM_ASIC_PROFILING_INFO_V2_1 *profile;
+       u16 *leakage_bin, *vddc_id_buf, *vddc_buf, *vddci_id_buf, *vddci_buf;
+
+       *vddc = 0;
+       *vddci = 0;
+
+       if (!atom_parse_data_header(rdev->mode_info.atom_context, index, &size,
+                                   &frev, &crev, &data_offset))
+               return -EINVAL;
+
+       profile = (ATOM_ASIC_PROFILING_INFO_V2_1 *)
+               (rdev->mode_info.atom_context->bios + data_offset);
+
+       switch (frev) {
+       case 1:
+               return -EINVAL;
+       case 2:
+               switch (crev) {
+               case 1:
+                       if (size < sizeof(ATOM_ASIC_PROFILING_INFO_V2_1))
+                               return -EINVAL;
+                       leakage_bin = (u16 *)
+                               (rdev->mode_info.atom_context->bios + data_offset +
+                                le16_to_cpu(profile->usLeakageBinArrayOffset));
+                       vddc_id_buf = (u16 *)
+                               (rdev->mode_info.atom_context->bios + data_offset +
+                                le16_to_cpu(profile->usElbVDDC_IdArrayOffset));
+                       vddc_buf = (u16 *)
+                               (rdev->mode_info.atom_context->bios + data_offset +
+                                le16_to_cpu(profile->usElbVDDC_LevelArrayOffset));
+                       vddci_id_buf = (u16 *)
+                               (rdev->mode_info.atom_context->bios + data_offset +
+                                le16_to_cpu(profile->usElbVDDCI_IdArrayOffset));
+                       vddci_buf = (u16 *)
+                               (rdev->mode_info.atom_context->bios + data_offset +
+                                le16_to_cpu(profile->usElbVDDCI_LevelArrayOffset));
+
+                       if (profile->ucElbVDDC_Num > 0) {
+                               for (i = 0; i < profile->ucElbVDDC_Num; i++) {
+                                       if (vddc_id_buf[i] == virtual_voltage_id) {
+                                               for (j = 0; j < profile->ucLeakageBinNum; j++) {
+                                                       if (vbios_voltage_id <= leakage_bin[j]) {
+                                                               *vddc = vddc_buf[j * profile->ucElbVDDC_Num + i];
+                                                               break;
+                                                       }
+                                               }
+                                               break;
+                                       }
+                               }
+                       }
+                       if (profile->ucElbVDDCI_Num > 0) {
+                               for (i = 0; i < profile->ucElbVDDCI_Num; i++) {
+                                       if (vddci_id_buf[i] == virtual_voltage_id) {
+                                               for (j = 0; j < profile->ucLeakageBinNum; j++) {
+                                                       if (vbios_voltage_id <= leakage_bin[j]) {
+                                                               *vddci = vddci_buf[j * profile->ucElbVDDCI_Num + i];
+                                                               break;
+                                                       }
+                                               }
+                                               break;
+                                       }
+                               }
+                       }
+                       break;
+               default:
+                       DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
+                       return -EINVAL;
+               }
+               break;
+       default:
+               DRM_ERROR("Unknown table version %d, %d\n", frev, crev);
+               return -EINVAL;
+       }
+
+       return 0;
+}
+
 int radeon_atom_get_voltage_gpio_settings(struct radeon_device *rdev,
                                          u16 voltage_level, u8 voltage_type,
                                          u32 *gpio_value, u32 *gpio_mask)