/* SPDX-License-Identifier: GPL-2.0 */


#ifndef _ASM_X86_AMD_NODE_H_
#define _ASM_X86_AMD_NODE_H_

#include <linux/pci.h>

#define MAX_AMD_NUM_NODES	8
#define AMD_NODE0_PCI_SLOT	0x18

struct pci_dev *amd_node_get_func(u16 node, u8 func);

static inline u16 amd_num_nodes(void)
{
	return topology_amd_nodes_per_pkg() * topology_max_packages();
}

#ifdef CONFIG_AMD_NODE
int __must_check amd_smn_read(u16 node, u32 address, u32 *value);
int __must_check amd_smn_write(u16 node, u32 address, u32 value);


int __must_check amd_smn_hsmp_rdwr(u16 node, u32 address, u32 *value, bool write);
#else
static inline int __must_check amd_smn_read(u16 node, u32 address, u32 *value) { return -ENODEV; }
static inline int __must_check amd_smn_write(u16 node, u32 address, u32 value) { return -ENODEV; }

static inline int __must_check amd_smn_hsmp_rdwr(u16 node, u32 address, u32 *value, bool write)
{
	return -ENODEV;
}
#endif 


static inline int smn_read_register(u32 reg)
{
	int data, rc;

	rc = amd_smn_read(0, reg, &data);
	if (rc)
		return rc;

	return data;
}
#endif 
