3 * Intel Management Engine Interface (Intel MEI) Linux driver
4 * Copyright (c) 2013-2014, Intel Corporation.
6 * This program is free software; you can redistribute it and/or modify it
7 * under the terms and conditions of the GNU General Public License,
8 * version 2, as published by the Free Software Foundation.
10 * This program is distributed in the hope it will be useful, but WITHOUT
11 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
12 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
17 #ifndef _MEI_HW_TXE_H_
18 #define _MEI_HW_TXE_H_
20 #include <linux/irqreturn.h>
23 #include "hw-txe-regs.h"
25 #define MEI_TXI_RPM_TIMEOUT 500 /* ms */
27 /* Flatten Hierarchy interrupt cause */
28 #define TXE_INTR_READINESS_BIT 0 /* HISR_INT_0_STS */
29 #define TXE_INTR_READINESS HISR_INT_0_STS
30 #define TXE_INTR_ALIVENESS_BIT 1 /* HISR_INT_1_STS */
31 #define TXE_INTR_ALIVENESS HISR_INT_1_STS
32 #define TXE_INTR_OUT_DB_BIT 2 /* HISR_INT_2_STS */
33 #define TXE_INTR_OUT_DB HISR_INT_2_STS
34 #define TXE_INTR_IN_READY_BIT 8 /* beyond HISR */
35 #define TXE_INTR_IN_READY BIT(8)
38 * struct mei_txe_hw - txe hardware specifics
40 * @mem_addr: SeC and BRIDGE bars
41 * @aliveness: aliveness (power gating) state of the hardware
42 * @readiness: readiness state of the hardware
43 * @wait_aliveness_resp: aliveness wait queue
44 * @intr_cause: translated interrupt cause
47 void __iomem *mem_addr[NUM_OF_MEM_BARS];
52 wait_queue_head_t wait_aliveness_resp;
54 unsigned long intr_cause;
57 #define to_txe_hw(dev) (struct mei_txe_hw *)((dev)->hw)
59 static inline struct mei_device *hw_txe_to_mei(struct mei_txe_hw *hw)
61 return container_of((void *)hw, struct mei_device, hw);
64 extern const struct mei_cfg mei_txe_cfg;
66 struct mei_device *mei_txe_dev_init(struct pci_dev *pdev,
67 const struct mei_cfg *cfg);
69 irqreturn_t mei_txe_irq_quick_handler(int irq, void *dev_id);
70 irqreturn_t mei_txe_irq_thread_handler(int irq, void *dev_id);
72 int mei_txe_aliveness_set_sync(struct mei_device *dev, u32 req);
74 int mei_txe_setup_satt2(struct mei_device *dev, phys_addr_t addr, u32 range);
77 #endif /* _MEI_HW_TXE_H_ */