1 | /* SPDX-License-Identifier: GPL-2.0 */ |
2 | /* |
3 | * Copyright (c) 2013-2016, Intel Corporation. All rights reserved. |
4 | * Intel Management Engine Interface (Intel MEI) Linux driver |
5 | */ |
6 | |
7 | #ifndef _MEI_HW_TXE_H_ |
8 | #define _MEI_HW_TXE_H_ |
9 | |
10 | #include <linux/irqreturn.h> |
11 | |
12 | #include "hw.h" |
13 | #include "hw-txe-regs.h" |
14 | |
15 | #define MEI_TXI_RPM_TIMEOUT 500 /* ms */ |
16 | |
17 | /* Flatten Hierarchy interrupt cause */ |
18 | #define TXE_INTR_READINESS_BIT 0 /* HISR_INT_0_STS */ |
19 | #define TXE_INTR_READINESS HISR_INT_0_STS |
20 | #define TXE_INTR_ALIVENESS_BIT 1 /* HISR_INT_1_STS */ |
21 | #define TXE_INTR_ALIVENESS HISR_INT_1_STS |
22 | #define TXE_INTR_OUT_DB_BIT 2 /* HISR_INT_2_STS */ |
23 | #define TXE_INTR_OUT_DB HISR_INT_2_STS |
24 | #define TXE_INTR_IN_READY_BIT 8 /* beyond HISR */ |
25 | #define TXE_INTR_IN_READY BIT(8) |
26 | |
27 | /** |
28 | * struct mei_txe_hw - txe hardware specifics |
29 | * |
30 | * @mem_addr: SeC and BRIDGE bars |
31 | * @aliveness: aliveness (power gating) state of the hardware |
32 | * @readiness: readiness state of the hardware |
33 | * @slots: number of empty slots |
34 | * @wait_aliveness_resp: aliveness wait queue |
35 | * @intr_cause: translated interrupt cause |
36 | */ |
37 | struct mei_txe_hw { |
38 | void __iomem * const *mem_addr; |
39 | u32 aliveness; |
40 | u32 readiness; |
41 | u32 slots; |
42 | |
43 | wait_queue_head_t wait_aliveness_resp; |
44 | |
45 | unsigned long intr_cause; |
46 | }; |
47 | |
48 | #define to_txe_hw(dev) (struct mei_txe_hw *)((dev)->hw) |
49 | |
50 | static inline struct mei_device *hw_txe_to_mei(struct mei_txe_hw *hw) |
51 | { |
52 | return container_of((void *)hw, struct mei_device, hw); |
53 | } |
54 | |
55 | struct mei_device *mei_txe_dev_init(struct pci_dev *pdev); |
56 | |
57 | irqreturn_t mei_txe_irq_quick_handler(int irq, void *dev_id); |
58 | irqreturn_t mei_txe_irq_thread_handler(int irq, void *dev_id); |
59 | |
60 | int mei_txe_aliveness_set_sync(struct mei_device *dev, u32 req); |
61 | |
62 | int mei_txe_setup_satt2(struct mei_device *dev, phys_addr_t addr, u32 range); |
63 | |
64 | |
65 | #endif /* _MEI_HW_TXE_H_ */ |
66 | |