LXR linux/drivers/gpu/drm/amd/display/dc/dcn31/dcn31

   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}
  88