/* SPDX-License-Identifier: GPL-2.0 */
#ifndef _PSYCHO_COMMON_H
#define _PSYCHO_COMMON_H

/* U2P Programmer's Manual, page 13-55, configuration space
 * address format:
 * 
 *  32             24 23 16 15    11 10       8 7   2  1 0
 * ---------------------------------------------------------
 * |0 0 0 0 0 0 0 0 1| bus | device | function | reg | 0 0 |
 * ---------------------------------------------------------
 */
#define PSYCHO_CONFIG_BASE(PBM) \
        ((PBM)->config_space | (1UL << 24))
#define PSYCHO_CONFIG_ENCODE(BUS, DEVFN, REG)   \
        (((unsigned long)(BUS)   << 16) |       \
         ((unsigned long)(DEVFN) << 8)  |       \
         ((unsigned long)(REG)))

static inline void *psycho_pci_config_mkaddr(struct pci_pbm_info *pbm,
                                             unsigned char bus,
                                             unsigned int devfn,
                                             int where)
{
        return (void *)
                (PSYCHO_CONFIG_BASE(pbm) |
                 PSYCHO_CONFIG_ENCODE(bus, devfn, where));
}

enum psycho_error_type {
        UE_ERR, CE_ERR, PCI_ERR
};

void psycho_check_iommu_error(struct pci_pbm_info *pbm,
                              unsigned long afsr,
                              unsigned long afar,
                              enum psycho_error_type type);

irqreturn_t psycho_pcierr_intr(int irq, void *dev_id);

int psycho_iommu_init(struct pci_pbm_info *pbm, int tsbsize,
                      u32 dvma_offset, u32 dma_mask,
                      unsigned long write_complete_offset);

void psycho_pbm_init_common(struct pci_pbm_info *pbm,
                            struct platform_device *op,
                            const char *chip_name, int chip_type);

#endif /* _PSYCHO_COMMON_H */