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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* AMD Address Translation Library
*
* umc.c : Unified Memory Controller (UMC) topology helpers
*
* Copyright (c) 2023, Advanced Micro Devices, Inc.
* All Rights Reserved.
*
* Author: Yazen Ghannam <Yazen.Ghannam@amd.com>
*/
#include "internal.h"
static u8 get_die_id(struct atl_err *err)
{
/*
* For CPUs, this is the AMD Node ID modulo the number
* of AMD Nodes per socket.
*/
return topology_die_id(err->cpu) % amd_get_nodes_per_socket();
}
#define UMC_CHANNEL_NUM GENMASK(31, 20)
static u8 get_coh_st_inst_id(struct atl_err *err)
{
return FIELD_GET(UMC_CHANNEL_NUM, err->ipid);
}
unsigned long convert_umc_mca_addr_to_sys_addr(struct atl_err *err)
{
u8 socket_id = topology_physical_package_id(err->cpu);
u8 coh_st_inst_id = get_coh_st_inst_id(err);
unsigned long addr = err->addr;
u8 die_id = get_die_id(err);
pr_debug("socket_id=0x%x die_id=0x%x coh_st_inst_id=0x%x addr=0x%016lx",
socket_id, die_id, coh_st_inst_id, addr);
return norm_to_sys_addr(socket_id, die_id, coh_st_inst_id, addr);
}
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