1 files changed, 78 insertions, 0 deletions
diff --git a/arch/powerpc/include/asm/pnv-pci.h b/arch/powerpc/include/asm/pnv-pci.h
new file mode 100644
index 000000000..8afc92860
--- /dev/null
+++ b/arch/powerpc/include/asm/pnv-pci.h
@@ -0,0 +1,78 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+/*
+ * Copyright 2014 IBM Corp.
+ */
+
+#ifndef _ASM_PNV_PCI_H
+#define _ASM_PNV_PCI_H
+
+#include <linux/pci.h>
+#include <linux/pci_hotplug.h>
+#include <linux/irq.h>
+#include <linux/of.h>
+#include <misc/cxl-base.h>
+#include <asm/opal-api.h>
+
+#define PCI_SLOT_ID_PREFIX	(1UL << 63)
+#define PCI_SLOT_ID(phb_id, bdfn)	\
+	(PCI_SLOT_ID_PREFIX | ((uint64_t)(bdfn) << 16) | (phb_id))
+#define PCI_PHB_SLOT_ID(phb_id)		(phb_id)
+
+extern int pnv_pci_get_slot_id(struct device_node *np, uint64_t *id);
+extern int pnv_pci_get_device_tree(uint32_t phandle, void *buf, uint64_t len);
+extern int pnv_pci_get_presence_state(uint64_t id, uint8_t *state);
+extern int pnv_pci_get_power_state(uint64_t id, uint8_t *state);
+extern int pnv_pci_set_power_state(uint64_t id, uint8_t state,
+				   struct opal_msg *msg);
+
+extern int pnv_pci_set_tunnel_bar(struct pci_dev *dev, uint64_t addr,
+				  int enable);
+int pnv_phb_to_cxl_mode(struct pci_dev *dev, uint64_t mode);
+int pnv_cxl_ioda_msi_setup(struct pci_dev *dev, unsigned int hwirq,
+			   unsigned int virq);
+int pnv_cxl_alloc_hwirqs(struct pci_dev *dev, int num);
+void pnv_cxl_release_hwirqs(struct pci_dev *dev, int hwirq, int num);
+int pnv_cxl_get_irq_count(struct pci_dev *dev);
+struct device_node *pnv_pci_get_phb_node(struct pci_dev *dev);
+int64_t pnv_opal_pci_msi_eoi(struct irq_data *d);
+bool is_pnv_opal_msi(struct irq_chip *chip);
+
+#ifdef CONFIG_CXL_BASE
+int pnv_cxl_alloc_hwirq_ranges(struct cxl_irq_ranges *irqs,
+			       struct pci_dev *dev, int num);
+void pnv_cxl_release_hwirq_ranges(struct cxl_irq_ranges *irqs,
+				  struct pci_dev *dev);
+#endif
+
+struct pnv_php_slot {
+	struct hotplug_slot		slot;
+	uint64_t			id;
+	char				*name;
+	int				slot_no;
+	unsigned int			flags;
+#define PNV_PHP_FLAG_BROKEN_PDC		0x1
+	struct kref			kref;
+#define PNV_PHP_STATE_INITIALIZED	0
+#define PNV_PHP_STATE_REGISTERED	1
+#define PNV_PHP_STATE_POPULATED		2
+#define PNV_PHP_STATE_OFFLINE		3
+	int				state;
+	int				irq;
+	struct workqueue_struct		*wq;
+	struct device_node		*dn;
+	struct pci_dev			*pdev;
+	struct pci_bus			*bus;
+	bool				power_state_check;
+	u8				attention_state;
+	void				*fdt;
+	void				*dt;
+	struct of_changeset		ocs;
+	struct pnv_php_slot		*parent;
+	struct list_head		children;
+	struct list_head		link;
+};
+extern struct pnv_php_slot *pnv_php_find_slot(struct device_node *dn);
+extern int pnv_php_set_slot_power_state(struct hotplug_slot *slot,
+					uint8_t state);
+
+#endif