/* * * Intel Management Engine Interface (Intel MEI) Linux driver * Copyright (c) 2013-2014, Intel Corporation. * * This program is free software; you can redistribute it and/or modify it * under the terms and conditions of the GNU General Public License, * version 2, as published by the Free Software Foundation. * * This program is distributed in the hope it will be useful, but WITHOUT * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for * more details. * */ #ifndef _MEI_HW_TXE_H_ #define _MEI_HW_TXE_H_ #include <linux/irqreturn.h> #include "hw.h" #include "hw-txe-regs.h" #define MEI_TXI_RPM_TIMEOUT 500 /* ms */ /* Flatten Hierarchy interrupt cause */ #define TXE_INTR_READINESS_BIT 0 /* HISR_INT_0_STS */ #define TXE_INTR_READINESS HISR_INT_0_STS #define TXE_INTR_ALIVENESS_BIT 1 /* HISR_INT_1_STS */ #define TXE_INTR_ALIVENESS HISR_INT_1_STS #define TXE_INTR_OUT_DB_BIT 2 /* HISR_INT_2_STS */ #define TXE_INTR_OUT_DB HISR_INT_2_STS #define TXE_INTR_IN_READY_BIT 8 /* beyond HISR */ #define TXE_INTR_IN_READY BIT(8) /** * struct mei_txe_hw - txe hardware specifics * * @mem_addr: SeC and BRIDGE bars * @aliveness: aliveness (power gating) state of the hardware * @readiness: readiness state of the hardware * @slots: number of empty slots * @wait_aliveness_resp: aliveness wait queue * @intr_cause: translated interrupt cause */ struct mei_txe_hw { void __iomem * const *mem_addr; u32 aliveness; u32 readiness; u32 slots; wait_queue_head_t wait_aliveness_resp; unsigned long intr_cause; }; #define to_txe_hw(dev) (struct mei_txe_hw *)((dev)->hw) static inline struct mei_device *hw_txe_to_mei(struct mei_txe_hw *hw) { return container_of((void *)hw, struct mei_device, hw); } struct mei_device *mei_txe_dev_init(struct pci_dev *pdev); irqreturn_t mei_txe_irq_quick_handler(int irq, void *dev_id); irqreturn_t mei_txe_irq_thread_handler(int irq, void *dev_id); int mei_txe_aliveness_set_sync(struct mei_device *dev, u32 req); int mei_txe_setup_satt2(struct mei_device *dev, phys_addr_t addr, u32 range); #endif /* _MEI_HW_TXE_H_ */