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 46 static 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 52 void 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 62 void vpg31_poweron(struct vpg *vpg) 63 { 64 struct dcn31_vpg *vpg31 = DCN31_VPG_FROM_VPG(vpg); 65 66 uint32_t vpg_gsp_mem_pwr_state; 67 68 REG_GET(VPG_MEM_PWR, VPG_GSP_MEM_PWR_STATE, &vpg_gsp_mem_pwr_state); 69 70 if (vpg->ctx->dc->debug.enable_mem_low_power.bits.vpg == false && 71 vpg_gsp_mem_pwr_state == 0) 72 return; 73 74 REG_UPDATE_2(VPG_MEM_PWR, VPG_GSP_MEM_LIGHT_SLEEP_DIS, 1, VPG_GSP_LIGHT_SLEEP_FORCE, 0); 75 } 76 77 void vpg31_construct(struct dcn31_vpg *vpg31, 78 struct dc_context *ctx, 79 uint32_t inst, 80 const struct dcn31_vpg_registers *vpg_regs, 81 const struct dcn31_vpg_shift *vpg_shift, 82 const struct dcn31_vpg_mask *vpg_mask) 83 { 84 vpg31->base.ctx = ctx; 85 86 vpg31->base.inst = inst; 87 vpg31->base.funcs = &dcn31_vpg_funcs; 88 89 vpg31->regs = vpg_regs; 90 vpg31->vpg_shift = vpg_shift; 91 vpg31->vpg_mask = vpg_mask; 92 } 93