cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
Log | Files | Refs | README | LICENSE | sfeed.txt

dcn31_vpg.c (2599B)

      1/*
      2 * Copyright 2019 Advanced Micro Devices, Inc.
      3 *
      4 * Permission is hereby granted, free of charge, to any person obtaining a
      5 * copy of this software and associated documentation files (the "Software"),
      6 * to deal in the Software without restriction, including without limitation
      7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      8 *  and/or sell copies of the Software, and to permit persons to whom the
      9 * Software is furnished to do so, subject to the following conditions:
     10 *
     11 * The above copyright notice and this permission notice shall be included in
     12 * all copies or substantial portions of the Software.
     13 *
     14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
     18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     20 * OTHER DEALINGS IN THE SOFTWARE.
     21 *
     22 * Authors: AMD
     23 *
     24 */
     25
     26#include "dc_bios_types.h"
     27#include "dcn30/dcn30_vpg.h"
     28#include "dcn31_vpg.h"
     29#include "reg_helper.h"
     30#include "dc/dc.h"
     31
     32#define DC_LOGGER \
     33		vpg31->base.ctx->logger
     34
     35#define REG(reg)\
     36	(vpg31->regs->reg)
     37
     38#undef FN
     39#define FN(reg_name, field_name) \
     40	vpg31->vpg_shift->field_name, vpg31->vpg_mask->field_name
     41
     42
     43#define CTX \
     44	vpg31->base.ctx
     45
     46static struct vpg_funcs dcn31_vpg_funcs = {
     47	.update_generic_info_packet	= vpg3_update_generic_info_packet,
     48	.vpg_poweron = vpg31_poweron,
     49	.vpg_powerdown = vpg31_powerdown,
     50};
     51
     52void vpg31_powerdown(struct vpg *vpg)
     53{
     54	struct dcn31_vpg *vpg31 = DCN31_VPG_FROM_VPG(vpg);
     55
     56	if (vpg->ctx->dc->debug.enable_mem_low_power.bits.vpg == false)
     57		return;
     58
     59	REG_UPDATE_2(VPG_MEM_PWR, VPG_GSP_MEM_LIGHT_SLEEP_DIS, 0, VPG_GSP_LIGHT_SLEEP_FORCE, 1);
     60}
     61
     62void vpg31_poweron(struct vpg *vpg)
     63{
     64	struct dcn31_vpg *vpg31 = DCN31_VPG_FROM_VPG(vpg);
     65
     66	if (vpg->ctx->dc->debug.enable_mem_low_power.bits.vpg == false)
     67		return;
     68
     69	REG_UPDATE_2(VPG_MEM_PWR, VPG_GSP_MEM_LIGHT_SLEEP_DIS, 1, VPG_GSP_LIGHT_SLEEP_FORCE, 0);
     70}
     71
     72void vpg31_construct(struct dcn31_vpg *vpg31,
     73	struct dc_context *ctx,
     74	uint32_t inst,
     75	const struct dcn31_vpg_registers *vpg_regs,
     76	const struct dcn31_vpg_shift *vpg_shift,
     77	const struct dcn31_vpg_mask *vpg_mask)
     78{
     79	vpg31->base.ctx = ctx;
     80
     81	vpg31->base.inst = inst;
     82	vpg31->base.funcs = &dcn31_vpg_funcs;
     83
     84	vpg31->regs = vpg_regs;
     85	vpg31->vpg_shift = vpg_shift;
     86	vpg31->vpg_mask = vpg_mask;
     87}