LXR linux/arch/sparc/kernel/psycho

   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