1 files changed, 485 insertions, 0 deletions

diff --git a/include/volt/volt_rail.c b/include/volt/volt_rail.c
new file mode 100644
index 0000000..caf297f
--- /dev/null
+++ b/include/volt/volt_rail.c
@@ -0,0 +1,485 @@
+/*
+ * Copyright (c) 2016-2018, NVIDIA CORPORATION.  All rights reserved.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
+ * DEALINGS IN THE SOFTWARE.
+ */
+
+#include <nvgpu/bios.h>
+#include <nvgpu/gk20a.h>
+
+#include "boardobj/boardobjgrp.h"
+#include "boardobj/boardobjgrp_e32.h"
+#include "gp106/bios_gp106.h"
+#include "ctrl/ctrlvolt.h"
+
+#include "volt.h"
+
+u8 volt_rail_volt_domain_convert_to_idx(struct gk20a *g, u8 volt_domain)
+{
+        switch (g->perf_pmu.volt.volt_rail_metadata.volt_domain_hal) {
+        case CTRL_VOLT_DOMAIN_HAL_GP10X_SINGLE_RAIL:
+                switch (volt_domain) {
+                case CTRL_VOLT_DOMAIN_LOGIC:
+                        return 0;
+                }
+                break;
+        case CTRL_VOLT_DOMAIN_HAL_GP10X_SPLIT_RAIL:
+                switch (volt_domain) {
+                case CTRL_VOLT_DOMAIN_LOGIC:
+                        return 0;
+                case CTRL_VOLT_DOMAIN_SRAM:
+                        return 1;
+                }
+                break;
+        }
+
+        return CTRL_BOARDOBJ_IDX_INVALID;
+}
+
+u32 volt_rail_volt_dev_register(struct gk20a *g, struct voltage_rail
+        *pvolt_rail, u8 volt_dev_idx, u8 operation_type)
+{
+        u32 status = 0;
+
+        if (operation_type == CTRL_VOLT_DEVICE_OPERATION_TYPE_DEFAULT) {
+                if (pvolt_rail->volt_dev_idx_default ==
+                                CTRL_BOARDOBJ_IDX_INVALID) {
+                        pvolt_rail->volt_dev_idx_default = volt_dev_idx;
+                } else {
+                        status = -EINVAL;
+                        goto exit;
+                }
+        } else if (operation_type ==
+                CTRL_VOLT_VOLT_DEVICE_OPERATION_TYPE_IPC_VMIN) {
+                if (pvolt_rail->volt_dev_idx_ipc_vmin ==
+                        CTRL_BOARDOBJ_IDX_INVALID) {
+                        pvolt_rail->volt_dev_idx_ipc_vmin = volt_dev_idx;
+                        /*
+                        * Exit on purpose as we do not want to register
+                        * IPC_VMIN device against the rail to avoid
+                        * setting current voltage instead of
+                        * IPC Vmin voltage.
+                        */
+                        goto exit;
+                } else {
+                        status = -EINVAL;
+                        goto exit;
+                }
+        } else {
+                goto exit;
+        }
+
+        status = boardobjgrpmask_bitset(&pvolt_rail->volt_dev_mask.super,
+                        volt_dev_idx);
+
+exit:
+        if (status) {
+                nvgpu_err(g, "Failed to register VOLTAGE_DEVICE");
+        }
+
+        return status;
+}
+
+static u32 volt_rail_state_init(struct gk20a *g,
+                struct voltage_rail *pvolt_rail)
+{
+        u32 status = 0;
+        u32 i;
+
+        pvolt_rail->volt_dev_idx_default = CTRL_BOARDOBJ_IDX_INVALID;
+
+        for (i = 0; i < CTRL_VOLT_RAIL_VOLT_DELTA_MAX_ENTRIES; i++) {
+                pvolt_rail->volt_delta_uv[i] = (int)NV_PMU_VOLT_VALUE_0V_IN_UV;
+                g->perf_pmu.volt.volt_rail_metadata.ext_rel_delta_uv[i] =
+                        NV_PMU_VOLT_VALUE_0V_IN_UV;
+        }
+
+        pvolt_rail->volt_margin_limit_vfe_equ_mon_handle =
+                NV_PMU_PERF_RPC_VFE_EQU_MONITOR_COUNT_MAX;
+        pvolt_rail->rel_limit_vfe_equ_mon_handle =
+                NV_PMU_PERF_RPC_VFE_EQU_MONITOR_COUNT_MAX;
+        pvolt_rail->alt_rel_limit_vfe_equ_mon_handle =
+                NV_PMU_PERF_RPC_VFE_EQU_MONITOR_COUNT_MAX;
+        pvolt_rail->ov_limit_vfe_equ_mon_handle =
+                NV_PMU_PERF_RPC_VFE_EQU_MONITOR_COUNT_MAX;
+
+        status = boardobjgrpmask_e32_init(&pvolt_rail->volt_dev_mask, NULL);
+        if (status) {
+                nvgpu_err(g,
+                        "Failed to initialize BOARDOBJGRPMASK of VOLTAGE_DEVICEs");
+        }
+
+        return status;
+}
+
+static int volt_rail_init_pmudata_super(struct gk20a *g,
+        struct boardobj *board_obj_ptr, struct nv_pmu_boardobj *ppmudata)
+{
+        int status = 0;
+        struct voltage_rail *prail;
+        struct nv_pmu_volt_volt_rail_boardobj_set *rail_pmu_data;
+        u32 i;
+
+        nvgpu_log_info(g, " ");
+
+        status = boardobj_pmudatainit_super(g, board_obj_ptr, ppmudata);
+        if (status) {
+                return status;
+        }
+
+        prail = (struct voltage_rail *)board_obj_ptr;
+        rail_pmu_data = (struct nv_pmu_volt_volt_rail_boardobj_set *)
+                ppmudata;
+
+        rail_pmu_data->rel_limit_vfe_equ_idx = prail->rel_limit_vfe_equ_idx;
+        rail_pmu_data->alt_rel_limit_vfe_equ_idx =
+                        prail->alt_rel_limit_vfe_equ_idx;
+        rail_pmu_data->ov_limit_vfe_equ_idx = prail->ov_limit_vfe_equ_idx;
+        rail_pmu_data->vmin_limit_vfe_equ_idx = prail->vmin_limit_vfe_equ_idx;
+        rail_pmu_data->volt_margin_limit_vfe_equ_idx =
+                        prail->volt_margin_limit_vfe_equ_idx;
+        rail_pmu_data->pwr_equ_idx = prail->pwr_equ_idx;
+        rail_pmu_data->volt_dev_idx_default = prail->volt_dev_idx_default;
+        rail_pmu_data->volt_scale_exp_pwr_equ_idx =
+                        prail->volt_scale_exp_pwr_equ_idx;
+        rail_pmu_data->volt_dev_idx_ipc_vmin = prail->volt_dev_idx_ipc_vmin;
+
+        for (i = 0; i < CTRL_VOLT_RAIL_VOLT_DELTA_MAX_ENTRIES; i++) {
+                rail_pmu_data->volt_delta_uv[i] = prail->volt_delta_uv[i] +
+                        (int)g->perf_pmu.volt.volt_rail_metadata.ext_rel_delta_uv[i];
+        }
+
+        status = boardobjgrpmask_export(&prail->volt_dev_mask.super,
+                                prail->volt_dev_mask.super.bitcount,
+                                &rail_pmu_data->volt_dev_mask.super);
+        if (status) {
+                nvgpu_err(g,
+                        "Failed to export BOARDOBJGRPMASK of VOLTAGE_DEVICEs");
+        }
+
+        nvgpu_log_info(g, "Done");
+
+        return status;
+}
+
+static struct voltage_rail *construct_volt_rail(struct gk20a *g, void *pargs)
+{
+        struct boardobj *board_obj_ptr = NULL;
+        struct voltage_rail *ptemp_rail = (struct voltage_rail *)pargs;
+        struct voltage_rail  *board_obj_volt_rail_ptr = NULL;
+        int status;
+
+        nvgpu_log_info(g, " ");
+        status = boardobj_construct_super(g, &board_obj_ptr,
+                sizeof(struct voltage_rail), pargs);
+        if (status) {
+                return NULL;
+        }
+
+        board_obj_volt_rail_ptr = (struct voltage_rail *)board_obj_ptr;
+        /* override super class interface */
+        board_obj_ptr->pmudatainit = volt_rail_init_pmudata_super;
+
+        board_obj_volt_rail_ptr->boot_voltage_uv =
+                        ptemp_rail->boot_voltage_uv;
+        board_obj_volt_rail_ptr->rel_limit_vfe_equ_idx =
+                        ptemp_rail->rel_limit_vfe_equ_idx;
+        board_obj_volt_rail_ptr->alt_rel_limit_vfe_equ_idx =
+                        ptemp_rail->alt_rel_limit_vfe_equ_idx;
+        board_obj_volt_rail_ptr->ov_limit_vfe_equ_idx =
+                        ptemp_rail->ov_limit_vfe_equ_idx;
+        board_obj_volt_rail_ptr->pwr_equ_idx =
+                        ptemp_rail->pwr_equ_idx;
+        board_obj_volt_rail_ptr->boot_volt_vfe_equ_idx =
+                        ptemp_rail->boot_volt_vfe_equ_idx;
+        board_obj_volt_rail_ptr->vmin_limit_vfe_equ_idx =
+                        ptemp_rail->vmin_limit_vfe_equ_idx;
+        board_obj_volt_rail_ptr->volt_margin_limit_vfe_equ_idx =
+                        ptemp_rail->volt_margin_limit_vfe_equ_idx;
+        board_obj_volt_rail_ptr->volt_scale_exp_pwr_equ_idx =
+                        ptemp_rail->volt_scale_exp_pwr_equ_idx;
+
+        nvgpu_log_info(g, "Done");
+
+        return (struct voltage_rail *)board_obj_ptr;