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-rw-r--r--arch/sparc/kernel/psycho_common.h49
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 */