From 173bdefc92e2e4ef8f1e7e6ead7f86e746bee935 Mon Sep 17 00:00:00 2001 From: Mahantesh Kumbar Date: Mon, 19 Sep 2016 11:07:46 +0530 Subject: gpu: nvgpu: add support for voltage config - changes to read voltage tables from VBIOS & create boardobj then send to pmu - Rail, Device & Policy objects are read from VBIOS & created boardobjs - RPC support to load, Set & get voltage. JIRA DNVGPU-122 Change-Id: I61621a514eef9c081a64c4ab066f01dfc28f8402 Signed-off-by: Mahantesh Kumbar Reviewed-on: http://git-master/r/1222774 (cherry picked from commit 9da86d8c2c547623cf5f38c89afeb3f5bb1667ac) Reviewed-on: http://git-master/r/1244656 GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom Tested-by: Terje Bergstrom --- drivers/gpu/nvgpu/volt/volt_dev.h | 69 +++++++++++++++++++++++++++++++++++++++ 1 file changed, 69 insertions(+) create mode 100644 drivers/gpu/nvgpu/volt/volt_dev.h (limited to 'drivers/gpu/nvgpu/volt/volt_dev.h') diff --git a/drivers/gpu/nvgpu/volt/volt_dev.h b/drivers/gpu/nvgpu/volt/volt_dev.h new file mode 100644 index 00000000..5113567d --- /dev/null +++ b/drivers/gpu/nvgpu/volt/volt_dev.h @@ -0,0 +1,69 @@ +/* +* Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved. +* +* This program is free software; you can redistribute it and/or modify it +* under the terms and conditions of the GNU General Public License, +* version 2, as published by the Free Software Foundation. +* +* This program is distributed in the hope it will be useful, but WITHOUT +* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or +* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for +* more details. +*/ + + +#ifndef _VOLTDEV_H_ +#define _VOLTDEV_H_ + +#include "boardobj/boardobj.h" +#include "boardobj/boardobjgrp.h" +#include "ctrl/ctrlvolt.h" + +#define VOLTAGE_TABLE_MAX_ENTRIES_ONE 1 +#define VOLTAGE_TABLE_MAX_ENTRIES 256 + +struct voltage_device { + struct boardobj super; + u8 volt_domain; + u8 i2c_dev_idx; + u32 switch_delay_us; + u32 num_entries; + struct voltage_device_entry *pentry[VOLTAGE_TABLE_MAX_ENTRIES]; + struct voltage_device_entry *pcurr_entry; + u8 rsvd_0; + u8 rsvd_1; + u8 operation_type; + u32 voltage_min_uv; + u32 voltage_max_uv; + u32 volt_step_uv; +}; + +struct voltage_device_entry { + u32 voltage_uv; +}; + +struct voltage_device_metadata { + struct boardobjgrp_e32 volt_devices; +}; + +/*! + * Extends VOLTAGE_DEVICE providing attributes specific to PWM controllers. + */ +struct voltage_device_pwm { + struct voltage_device super; + s32 voltage_base_uv; + s32 voltage_offset_scale_uv; + enum nv_pmu_pmgr_pwm_source source; + u32 raw_period; +}; + +struct voltage_device_pwm_entry { + struct voltage_device_entry super; + u32 duty_cycle; +}; +/* PWM end */ + +u32 volt_dev_sw_setup(struct gk20a *g); +u32 volt_dev_pmu_setup(struct gk20a *g); + +#endif /* _VOLTDEV_H_ */ -- cgit v1.2.2