1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _PSYCHO_COMMON_H
3#define _PSYCHO_COMMON_H
4
5/* U2P Programmer's Manual, page 13-55, configuration space
6 * address format:
7 *
8 *  32             24 23 16 15    11 10       8 7   2  1 0
9 * ---------------------------------------------------------
10 * |0 0 0 0 0 0 0 0 1| bus | device | function | reg | 0 0 |
11 * ---------------------------------------------------------
12 */
13#define PSYCHO_CONFIG_BASE(PBM)	\
14	((PBM)->config_space | (1UL << 24))
15#define PSYCHO_CONFIG_ENCODE(BUS, DEVFN, REG)	\
16	(((unsigned long)(BUS)   << 16) |	\
17	 ((unsigned long)(DEVFN) << 8)  |	\
18	 ((unsigned long)(REG)))
19
20static inline void *psycho_pci_config_mkaddr(struct pci_pbm_info *pbm,
21					     unsigned char bus,
22					     unsigned int devfn,
23					     int where)
24{
25	return (void *)
26		(PSYCHO_CONFIG_BASE(pbm) |
27		 PSYCHO_CONFIG_ENCODE(bus, devfn, where));
28}
29
30enum psycho_error_type {
31	UE_ERR, CE_ERR, PCI_ERR
32};
33
34void psycho_check_iommu_error(struct pci_pbm_info *pbm,
35			      unsigned long afsr,
36			      unsigned long afar,
37			      enum psycho_error_type type);
38
39irqreturn_t psycho_pcierr_intr(int irq, void *dev_id);
40
41int psycho_iommu_init(struct pci_pbm_info *pbm, int tsbsize,
42		      u32 dvma_offset, u32 dma_mask,
43		      unsigned long write_complete_offset);
44
45void psycho_pbm_init_common(struct pci_pbm_info *pbm,
46			    struct platform_device *op,
47			    const char *chip_name, int chip_type);
48
49#endif /* _PSYCHO_COMMON_H */
50