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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 | /* SPDX-License-Identifier: GPL-2.0-only * * Copyright (c) 2021, MediaTek Inc. * Copyright (c) 2021-2022, Intel Corporation. * * Authors: * Haijun Liu <haijun.liu@mediatek.com> * Ricardo Martinez <ricardo.martinez@linux.intel.com> * Sreehari Kancharla <sreehari.kancharla@intel.com> * * Contributors: * Amir Hanania <amir.hanania@intel.com> * Chiranjeevi Rapolu <chiranjeevi.rapolu@intel.com> * Moises Veleta <moises.veleta@intel.com> */ #ifndef __T7XX_PCI_H__ #define __T7XX_PCI_H__ #include <linux/completion.h> #include <linux/irqreturn.h> #include <linux/mutex.h> #include <linux/pci.h> #include <linux/spinlock.h> #include <linux/types.h> #include "t7xx_reg.h" /* struct t7xx_addr_base - holds base addresses * @pcie_mac_ireg_base: PCIe MAC register base * @pcie_ext_reg_base: used to calculate base addresses for CLDMA, DPMA and MHCCIF registers * @pcie_dev_reg_trsl_addr: used to calculate the register base address * @infracfg_ao_base: base address used in CLDMA reset operations * @mhccif_rc_base: host view of MHCCIF rc base addr */ struct t7xx_addr_base { void __iomem *pcie_mac_ireg_base; void __iomem *pcie_ext_reg_base; u32 pcie_dev_reg_trsl_addr; void __iomem *infracfg_ao_base; void __iomem *mhccif_rc_base; }; typedef irqreturn_t (*t7xx_intr_callback)(int irq, void *param); /* struct t7xx_pci_dev - MTK device context structure * @intr_handler: array of handler function for request_threaded_irq * @intr_thread: array of thread_fn for request_threaded_irq * @callback_param: array of cookie passed back to interrupt functions * @pdev: PCI device * @base_addr: memory base addresses of HW components * @md: modem interface * @ccmni_ctlb: context structure used to control the network data path * @rgu_pci_irq_en: RGU callback ISR registered and active * @md_pm_entities: list of pm entities * @md_pm_entity_mtx: protects md_pm_entities list * @pm_sr_ack: ack from the device when went to sleep or woke up * @md_pm_state: state for resume/suspend * @md_pm_lock: protects PCIe sleep lock * @sleep_disable_count: PCIe L1.2 lock counter * @sleep_lock_acquire: indicates that sleep has been disabled */ struct t7xx_pci_dev { t7xx_intr_callback intr_handler[EXT_INT_NUM]; t7xx_intr_callback intr_thread[EXT_INT_NUM]; void *callback_param[EXT_INT_NUM]; struct pci_dev *pdev; struct t7xx_addr_base base_addr; struct t7xx_modem *md; struct t7xx_ccmni_ctrl *ccmni_ctlb; bool rgu_pci_irq_en; /* Low Power Items */ struct list_head md_pm_entities; struct mutex md_pm_entity_mtx; /* Protects MD PM entities list */ struct completion pm_sr_ack; atomic_t md_pm_state; spinlock_t md_pm_lock; /* Protects PCI resource lock */ unsigned int sleep_disable_count; struct completion sleep_lock_acquire; #ifdef CONFIG_WWAN_DEBUGFS struct dentry *debugfs_dir; #endif }; enum t7xx_pm_id { PM_ENTITY_ID_CTRL1, PM_ENTITY_ID_CTRL2, PM_ENTITY_ID_DATA, PM_ENTITY_ID_INVALID }; /* struct md_pm_entity - device power management entity * @entity: list of PM Entities * @suspend: callback invoked before sending D3 request to device * @suspend_late: callback invoked after getting D3 ACK from device * @resume_early: callback invoked before sending the resume request to device * @resume: callback invoked after getting resume ACK from device * @id: unique PM entity identifier * @entity_param: parameter passed to the registered callbacks * * This structure is used to indicate PM operations required by internal * HW modules such as CLDMA and DPMA. */ struct md_pm_entity { struct list_head entity; int (*suspend)(struct t7xx_pci_dev *t7xx_dev, void *entity_param); void (*suspend_late)(struct t7xx_pci_dev *t7xx_dev, void *entity_param); void (*resume_early)(struct t7xx_pci_dev *t7xx_dev, void *entity_param); int (*resume)(struct t7xx_pci_dev *t7xx_dev, void *entity_param); enum t7xx_pm_id id; void *entity_param; }; void t7xx_pci_disable_sleep(struct t7xx_pci_dev *t7xx_dev); void t7xx_pci_enable_sleep(struct t7xx_pci_dev *t7xx_dev); int t7xx_pci_sleep_disable_complete(struct t7xx_pci_dev *t7xx_dev); int t7xx_pci_pm_entity_register(struct t7xx_pci_dev *t7xx_dev, struct md_pm_entity *pm_entity); int t7xx_pci_pm_entity_unregister(struct t7xx_pci_dev *t7xx_dev, struct md_pm_entity *pm_entity); void t7xx_pci_pm_init_late(struct t7xx_pci_dev *t7xx_dev); void t7xx_pci_pm_exp_detected(struct t7xx_pci_dev *t7xx_dev); #endif /* __T7XX_PCI_H__ */ |