Merge tag 'perf-urgent-for-mingo-20160809' of git://git.kernel.org/pub/scm/linux...

[cascardo/linux.git] / arch / powerpc / include / asm / pnv-pci.h

diff --git a/arch/powerpc/include/asm/pnv-pci.h b/arch/powerpc/include/asm/pnv-pci.h
index 6f77f71..0cbd813 100644 (file)
--- a/arch/powerpc/include/asm/pnv-pci.h
+++ b/arch/powerpc/include/asm/pnv-pci.h
@@ -11,7 +11,20 @@
 #define _ASM_PNV_PCI_H
 
 #include <linux/pci.h>
+#include <linux/pci_hotplug.h>
 #include <misc/cxl-base.h>
+#include <asm/opal-api.h>
+
+#define PCI_SLOT_ID_PREFIX     0x8000000000000000
+#define PCI_SLOT_ID(phb_id, bdfn)      \
+       (PCI_SLOT_ID_PREFIX | ((uint64_t)(bdfn) << 16) | (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);
 
 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,
@@ -26,6 +39,40 @@ 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);
+
+/* Support for the cxl kernel api on the real PHB (instead of vPHB) */
+int pnv_cxl_enable_phb_kernel_api(struct pci_controller *hose, bool enable);
+bool pnv_pci_on_cxl_phb(struct pci_dev *dev);
+struct cxl_afu *pnv_cxl_phb_to_afu(struct pci_controller *hose);
+void pnv_cxl_phb_set_peer_afu(struct pci_dev *dev, struct cxl_afu *afu);
+
 #endif
 
+struct pnv_php_slot {
+       struct hotplug_slot             slot;
+       struct hotplug_slot_info        slot_info;
+       uint64_t                        id;
+       char                            *name;
+       int                             slot_no;
+       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;
+       struct device_node              *dn;
+       struct pci_dev                  *pdev;
+       struct pci_bus                  *bus;
+       bool                            power_state_check;
+       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