From 58b85dd106f35d16ff568f8836dcbc7a019854b4 Mon Sep 17 00:00:00 2001 From: Lakshmanan M Date: Fri, 21 Oct 2016 16:57:15 +0530 Subject: gpu: nvgpu: Add thermal module support The following CL contains the following VBIOS thermal table parsing and PMU interface support. 1) Thermal device table 2) Thermal channel table JIRA DNVGPU-130 Change-Id: Ie3abab4bf099a022b1b59db96811c2ed44079519 Signed-off-by: Lakshmanan M Reviewed-on: http://git-master/r/1240630 (cherry picked from commit 814962a4be0a8cd0cddc7bc5211c62308ab1fea2) Reviewed-on: http://git-master/r/1246210 GVS: Gerrit_Virtual_Submit Reviewed-by: Terje Bergstrom --- drivers/gpu/nvgpu/therm/thrmdev.c | 193 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 193 insertions(+) create mode 100644 drivers/gpu/nvgpu/therm/thrmdev.c (limited to 'drivers/gpu/nvgpu/therm/thrmdev.c') diff --git a/drivers/gpu/nvgpu/therm/thrmdev.c b/drivers/gpu/nvgpu/therm/thrmdev.c new file mode 100644 index 00000000..83ac9739 --- /dev/null +++ b/drivers/gpu/nvgpu/therm/thrmdev.c @@ -0,0 +1,193 @@ +/* + * 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. + */ + +#include "gk20a/gk20a.h" +#include "thrmdev.h" +#include "include/bios.h" +#include "boardobj/boardobjgrp.h" +#include "boardobj/boardobjgrp_e32.h" +#include "pmuif/gpmuifboardobj.h" +#include "pmuif/gpmuifthermsensor.h" +#include "gm206/bios_gm206.h" +#include "gk20a/pmu_gk20a.h" +#include "ctrl/ctrltherm.h" + +static struct boardobj *construct_therm_device(struct gk20a *g, + void *pargs, u16 pargs_size, u8 type) +{ + struct boardobj *board_obj_ptr = NULL; + u32 status; + + status = boardobj_construct_super(g, &board_obj_ptr, + pargs_size, pargs); + if (status) + return NULL; + + gk20a_dbg_info(" Done"); + + return board_obj_ptr; +} + +static u32 _therm_device_pmudata_instget(struct gk20a *g, + struct nv_pmu_boardobjgrp *pmuboardobjgrp, + struct nv_pmu_boardobj **ppboardobjpmudata, + u8 idx) +{ + struct nv_pmu_therm_therm_device_boardobj_grp_set *pgrp_set = + (struct nv_pmu_therm_therm_device_boardobj_grp_set *) + pmuboardobjgrp; + + gk20a_dbg_info(""); + + /*check whether pmuboardobjgrp has a valid boardobj in index*/ + if (((u32)BIT(idx) & + pgrp_set->hdr.data.super.obj_mask.super.data[0]) == 0) + return -EINVAL; + + *ppboardobjpmudata = (struct nv_pmu_boardobj *) + &pgrp_set->objects[idx].data; + + gk20a_dbg_info(" Done"); + + return 0; +} + +static u32 devinit_get_therm_device_table(struct gk20a *g, + struct therm_devices *pthermdeviceobjs) +{ + u32 status = 0; + u8 *therm_device_table_ptr = NULL; + u8 *curr_therm_device_table_ptr = NULL; + struct boardobj *boardobj; + struct therm_device_1x_header therm_device_table_header = { 0 }; + struct therm_device_1x_entry *therm_device_table_entry = NULL; + u32 index; + u32 obj_index = 0; + u16 therm_device_size = 0; + union { + struct boardobj boardobj; + struct therm_device therm_device; + } therm_device_data; + + gk20a_dbg_info(""); + + if (g->ops.bios.get_perf_table_ptrs) { + therm_device_table_ptr = (u8 *)g->ops.bios.get_perf_table_ptrs(g, + g->bios.perf_token, THERMAL_DEVICE_TABLE); + if (therm_device_table_ptr == NULL) { + status = -EINVAL; + goto done; + } + } + + memcpy(&therm_device_table_header, therm_device_table_ptr, + VBIOS_THERM_DEVICE_1X_HEADER_SIZE_04); + + if (therm_device_table_header.version != + VBIOS_THERM_DEVICE_VERSION_1X) { + status = -EINVAL; + goto done; + } + + if (therm_device_table_header.header_size < + VBIOS_THERM_DEVICE_1X_HEADER_SIZE_04) { + status = -EINVAL; + goto done; + } + + curr_therm_device_table_ptr = (therm_device_table_ptr + + VBIOS_THERM_DEVICE_1X_HEADER_SIZE_04); + + for (index = 0; index < therm_device_table_header.num_table_entries; + index++) { + therm_device_table_entry = (struct therm_device_1x_entry *) + (curr_therm_device_table_ptr + + (therm_device_table_header.table_entry_size * index)); + + if (therm_device_table_entry->class_id != + NV_VBIOS_THERM_DEVICE_1X_ENTRY_CLASS_GPU) { + continue; + } + + therm_device_size = sizeof(struct therm_device); + therm_device_data.boardobj.type = CTRL_THERMAL_THERM_DEVICE_CLASS_GPU; + + boardobj = construct_therm_device(g, &therm_device_data, + therm_device_size, therm_device_data.boardobj.type); + + if (!boardobj) { + gk20a_err(dev_from_gk20a(g), + "unable to create thermal device for %d type %d", + index, therm_device_data.boardobj.type); + status = -EINVAL; + goto done; + } + + status = boardobjgrp_objinsert(&pthermdeviceobjs->super.super, + boardobj, obj_index); + + if (status) { + gk20a_err(dev_from_gk20a(g), + "unable to insert thermal device boardobj for %d", index); + status = -EINVAL; + goto done; + } + + ++obj_index; + } + +done: + gk20a_dbg_info(" done status %x", status); + return status; +} + +u32 therm_device_sw_setup(struct gk20a *g) +{ + u32 status; + struct boardobjgrp *pboardobjgrp = NULL; + struct therm_devices *pthermdeviceobjs; + + /* Construct the Super Class and override the Interfaces */ + status = boardobjgrpconstruct_e32(&g->therm_pmu.therm_deviceobjs.super); + if (status) { + gk20a_err(dev_from_gk20a(g), + "error creating boardobjgrp for therm devices, status - 0x%x", + status); + goto done; + } + + pboardobjgrp = &g->therm_pmu.therm_deviceobjs.super.super; + pthermdeviceobjs = &(g->therm_pmu.therm_deviceobjs); + + /* Override the Interfaces */ + pboardobjgrp->pmudatainstget = _therm_device_pmudata_instget; + + status = devinit_get_therm_device_table(g, pthermdeviceobjs); + if (status) + goto done; + + BOARDOBJGRP_PMU_CONSTRUCT(pboardobjgrp, THERM, THERM_DEVICE); + + status = BOARDOBJGRP_PMU_CMD_GRP_SET_CONSTRUCT(g, pboardobjgrp, + therm, THERM, therm_device, THERM_DEVICE); + if (status) { + gk20a_err(dev_from_gk20a(g), + "error constructing PMU_BOARDOBJ_CMD_GRP_SET interface - 0x%x", + status); + goto done; + } + +done: + gk20a_dbg_info(" done status %x", status); + return status; +} -- cgit v1.2.2