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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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3a3c244c9a
Implement pm object for the PCI Express port driver in order to use the new power management framework and reduce the code size. Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl> Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
83 lines
2.6 KiB
C
83 lines
2.6 KiB
C
/*
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* File: pcieport_if.h
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* Purpose: PCI Express Port Bus Driver's IF Data Structure
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*
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* Copyright (C) 2004 Intel
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* Copyright (C) Tom Long Nguyen (tom.l.nguyen@intel.com)
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*/
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#ifndef _PCIEPORT_IF_H_
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#define _PCIEPORT_IF_H_
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/* Port Type */
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#define PCIE_RC_PORT 4 /* Root port of RC */
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#define PCIE_SW_UPSTREAM_PORT 5 /* Upstream port of Switch */
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#define PCIE_SW_DOWNSTREAM_PORT 6 /* Downstream port of Switch */
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#define PCIE_ANY_PORT 7
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/* Service Type */
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#define PCIE_PORT_SERVICE_PME_SHIFT 0 /* Power Management Event */
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#define PCIE_PORT_SERVICE_PME (1 << PCIE_PORT_SERVICE_PME_SHIFT)
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#define PCIE_PORT_SERVICE_AER_SHIFT 1 /* Advanced Error Reporting */
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#define PCIE_PORT_SERVICE_AER (1 << PCIE_PORT_SERVICE_AER_SHIFT)
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#define PCIE_PORT_SERVICE_HP_SHIFT 2 /* Native Hotplug */
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#define PCIE_PORT_SERVICE_HP (1 << PCIE_PORT_SERVICE_HP_SHIFT)
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#define PCIE_PORT_SERVICE_VC_SHIFT 3 /* Virtual Channel */
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#define PCIE_PORT_SERVICE_VC (1 << PCIE_PORT_SERVICE_VC_SHIFT)
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/* Root/Upstream/Downstream Port's Interrupt Mode */
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#define PCIE_PORT_NO_IRQ (-1)
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#define PCIE_PORT_INTx_MODE 0
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#define PCIE_PORT_MSI_MODE 1
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#define PCIE_PORT_MSIX_MODE 2
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struct pcie_port_data {
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int port_type; /* Type of the port */
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int port_irq_mode; /* [0:INTx | 1:MSI | 2:MSI-X] */
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};
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struct pcie_device {
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int irq; /* Service IRQ/MSI/MSI-X Vector */
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struct pci_dev *port; /* Root/Upstream/Downstream Port */
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u32 service; /* Port service this device represents */
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void *priv_data; /* Service Private Data */
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struct device device; /* Generic Device Interface */
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};
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#define to_pcie_device(d) container_of(d, struct pcie_device, device)
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static inline void set_service_data(struct pcie_device *dev, void *data)
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{
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dev->priv_data = data;
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}
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static inline void* get_service_data(struct pcie_device *dev)
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{
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return dev->priv_data;
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}
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struct pcie_port_service_driver {
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const char *name;
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int (*probe) (struct pcie_device *dev);
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void (*remove) (struct pcie_device *dev);
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int (*suspend) (struct pcie_device *dev);
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int (*resume) (struct pcie_device *dev);
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/* Service Error Recovery Handler */
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struct pci_error_handlers *err_handler;
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/* Link Reset Capability - AER service driver specific */
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pci_ers_result_t (*reset_link) (struct pci_dev *dev);
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int port_type; /* Type of the port this driver can handle */
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u32 service; /* Port service this device represents */
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struct device_driver driver;
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};
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#define to_service_driver(d) \
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container_of(d, struct pcie_port_service_driver, driver)
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extern int pcie_port_service_register(struct pcie_port_service_driver *new);
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extern void pcie_port_service_unregister(struct pcie_port_service_driver *new);
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#endif /* _PCIEPORT_IF_H_ */
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