diff options
Diffstat (limited to 'arch/sparc/kernel/psycho_common.h')
| -rw-r--r-- | arch/sparc/kernel/psycho_common.h | 49 |
1 files changed, 49 insertions, 0 deletions
diff --git a/arch/sparc/kernel/psycho_common.h b/arch/sparc/kernel/psycho_common.h new file mode 100644 index 0000000000..6925231c50 --- /dev/null +++ b/arch/sparc/kernel/psycho_common.h @@ -0,0 +1,49 @@ +/* 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 */ |