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_rail.h | 77 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 77 insertions(+) create mode 100644 drivers/gpu/nvgpu/volt/volt_rail.h (limited to 'drivers/gpu/nvgpu/volt/volt_rail.h') diff --git a/drivers/gpu/nvgpu/volt/volt_rail.h b/drivers/gpu/nvgpu/volt/volt_rail.h new file mode 100644 index 00000000..0180992c --- /dev/null +++ b/drivers/gpu/nvgpu/volt/volt_rail.h @@ -0,0 +1,77 @@ +/* +* 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 _VOLT_RAIL_H_ +#define _VOLT_RAIL_H_ + +#include "boardobj/boardobj.h" +#include "boardobj/boardobjgrp.h" + +#define CTRL_VOLT_RAIL_VOLT_DELTA_MAX_ENTRIES 0x04 +#define CTRL_PMGR_PWR_EQUATION_INDEX_INVALID 0xFF + +#define VOLT_GET_VOLT_RAIL(pvolt, rail_idx) \ + ((struct voltage_rail *)BOARDOBJGRP_OBJ_GET_BY_IDX( \ + &((pvolt)->volt_rail_metadata.volt_rails.super), (rail_idx))) + +#define VOLT_RAIL_INDEX_IS_VALID(pvolt, rail_idx) \ + (boardobjgrp_idxisvalid( \ + &((pvolt)->volt_rail_metadata.volt_rails.super), (rail_idx))) + +#define VOLT_RAIL_VOLT_3X_SUPPORTED(pvolt) \ + (!BOARDOBJGRP_IS_EMPTY(&((pvolt)->volt_rail_metadata.volt_rails.super))) + +/*! + * extends boardobj providing attributes common to all voltage_rails. + */ +struct voltage_rail { + struct boardobj super; + u32 boot_voltage_uv; + u8 rel_limit_vfe_equ_idx; + u8 alt_rel_limit_vfe_equ_idx; + u8 ov_limit_vfe_equ_idx; + u8 pwr_equ_idx; + u8 volt_dev_idx_default; + u8 boot_volt_vfe_equ_idx; + u8 vmin_limit_vfe_equ_idx; + u8 volt_margin_limit_vfe_equ_idx; + u32 volt_margin_limit_vfe_equ_mon_handle; + u32 rel_limit_vfe_equ_mon_handle; + u32 alt_rel_limit_vfe_equ_mon_handle; + u32 ov_limit_vfe_equ_mon_handle; + struct boardobjgrpmask_e32 volt_dev_mask; + s32 volt_delta_uv[CTRL_VOLT_RAIL_VOLT_DELTA_MAX_ENTRIES]; +}; + +/*! + * metadata of voltage rail functionality. + */ +struct voltage_rail_metadata { + u8 volt_domain_hal; + u8 pct_delta; + u32 ext_rel_delta_uv[CTRL_VOLT_RAIL_VOLT_DELTA_MAX_ENTRIES]; + struct boardobjgrp_e32 volt_rails; +}; + +u8 volt_rail_vbios_volt_domain_convert_to_internal + (struct gk20a *g, u8 vbios_volt_domain); + +u32 volt_rail_volt_dev_register(struct gk20a *g, struct voltage_rail + *pvolt_rail, u8 volt_dev_idx, u8 operation_type); + +u8 volt_rail_volt_domain_convert_to_idx(struct gk20a *g, u8 volt_domain); + +u32 volt_rail_sw_setup(struct gk20a *g); +u32 volt_rail_pmu_setup(struct gk20a *g); +#endif -- cgit v1.2.2