vasilito
ff4ff35918
Red Bear OS is a full fork. All sources must be available from git clone with zero network access. Removed gitignore rules that excluded fetched source trees under recipes/*/source/, local/recipes/kde/*/source/, local/recipes/qt/*/source/, and vendor source trees. Build artifacts (target/, build/, source.tar, *.o, *.so) remain excluded. 127291 files added — kernel, relibc, base, bootloader, pkgar, all KDE/Qt frameworks, mesa, wayland, DRM drivers, and every other recipe source.
60 lines
1.5 KiB
C
60 lines
1.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* AMD Node helper functions and common defines
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*
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* Copyright (c) 2024, Advanced Micro Devices, Inc.
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* All Rights Reserved.
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*
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* Author: Yazen Ghannam <Yazen.Ghannam@amd.com>
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*
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* Note:
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* Items in this file may only be used in a single place.
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* However, it's prudent to keep all AMD Node functionality
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* in a unified place rather than spreading throughout the
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* kernel.
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*/
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#ifndef _ASM_X86_AMD_NODE_H_
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#define _ASM_X86_AMD_NODE_H_
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#include <linux/pci.h>
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#define MAX_AMD_NUM_NODES 8
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#define AMD_NODE0_PCI_SLOT 0x18
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struct pci_dev *amd_node_get_func(u16 node, u8 func);
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static inline u16 amd_num_nodes(void)
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{
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return topology_amd_nodes_per_pkg() * topology_max_packages();
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}
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#ifdef CONFIG_AMD_NODE
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int __must_check amd_smn_read(u16 node, u32 address, u32 *value);
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int __must_check amd_smn_write(u16 node, u32 address, u32 value);
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/* Should only be used by the HSMP driver. */
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int __must_check amd_smn_hsmp_rdwr(u16 node, u32 address, u32 *value, bool write);
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#else
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static inline int __must_check amd_smn_read(u16 node, u32 address, u32 *value) { return -ENODEV; }
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static inline int __must_check amd_smn_write(u16 node, u32 address, u32 value) { return -ENODEV; }
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static inline int __must_check amd_smn_hsmp_rdwr(u16 node, u32 address, u32 *value, bool write)
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{
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return -ENODEV;
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}
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#endif /* CONFIG_AMD_NODE */
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/* helper for use with read_poll_timeout */
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static inline int smn_read_register(u32 reg)
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{
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int data, rc;
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rc = amd_smn_read(0, reg, &data);
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if (rc)
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return rc;
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return data;
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}
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#endif /*_ASM_X86_AMD_NODE_H_*/
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