amd_pci_util.h

Go to the documentation of this file.

/* SPDX-License-Identifier: GPL-2.0-only */
 
#ifndef AMD_PCI_UTIL_H
#define AMD_PCI_UTIL_H
 
#include <stdint.h>
#include "amd_pci_int_defs.h"
 
/* FCH index/data registers */
#define PCI_INTR_INDEX  0xc00
#define PCI_INTR_DATA   0xc01
 
struct pirq_struct {
        u8 devfn;
        u8 PIN[4];      /* PINA/B/C/D are index 0/1/2/3 */
};
 
extern const struct pirq_struct * pirq_data_ptr;
extern u32 pirq_data_size;
extern const u8 *intr_data_ptr;
extern const u8 *picr_data_ptr;
 
u8 read_pci_int_idx(u8 index, int mode);
void write_pci_int_idx(u8 index, int mode, u8 data);
void write_pci_cfg_irqs(void);
void write_pci_int_table (void);
 
#endif /* AMD_PCI_UTIL_H */