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Merge tag 'linux-watchdog-6.14-rc1' of git://www.linux-watchdog.org/linux-watchdog
[linux.git] / drivers / gpu / drm / panthor / panthor_gpu.h
1 /* SPDX-License-Identifier: GPL-2.0 or MIT */
2 /* Copyright 2018 Marty E. Plummer <[email protected]> */
3 /* Copyright 2019 Collabora ltd. */
4
5 #ifndef __PANTHOR_GPU_H__
6 #define __PANTHOR_GPU_H__
7
8 #include <linux/types.h>
9
10 struct panthor_device;
11
12 int panthor_gpu_init(struct panthor_device *ptdev);
13 void panthor_gpu_unplug(struct panthor_device *ptdev);
14 void panthor_gpu_suspend(struct panthor_device *ptdev);
15 void panthor_gpu_resume(struct panthor_device *ptdev);
16
17 int panthor_gpu_block_power_on(struct panthor_device *ptdev,
18                                const char *blk_name,
19                                u32 pwron_reg, u32 pwrtrans_reg,
20                                u32 rdy_reg, u64 mask, u32 timeout_us);
21 int panthor_gpu_block_power_off(struct panthor_device *ptdev,
22                                 const char *blk_name,
23                                 u32 pwroff_reg, u32 pwrtrans_reg,
24                                 u64 mask, u32 timeout_us);
25
26 /**
27  * panthor_gpu_power_on() - Power on the GPU block.
28  *
29  * Return: 0 on success, a negative error code otherwise.
30  */
31 #define panthor_gpu_power_on(ptdev, type, mask, timeout_us) \
32         panthor_gpu_block_power_on(ptdev, #type, \
33                                   type ## _PWRON_LO, \
34                                   type ## _PWRTRANS_LO, \
35                                   type ## _READY_LO, \
36                                   mask, timeout_us)
37
38 /**
39  * panthor_gpu_power_off() - Power off the GPU block.
40  *
41  * Return: 0 on success, a negative error code otherwise.
42  */
43 #define panthor_gpu_power_off(ptdev, type, mask, timeout_us) \
44         panthor_gpu_block_power_off(ptdev, #type, \
45                                    type ## _PWROFF_LO, \
46                                    type ## _PWRTRANS_LO, \
47                                    mask, timeout_us)
48
49 int panthor_gpu_l2_power_on(struct panthor_device *ptdev);
50 int panthor_gpu_flush_caches(struct panthor_device *ptdev,
51                              u32 l2, u32 lsc, u32 other);
52 int panthor_gpu_soft_reset(struct panthor_device *ptdev);
53 u64 panthor_gpu_read_timestamp(struct panthor_device *ptdev);
54 u64 panthor_gpu_read_timestamp_offset(struct panthor_device *ptdev);
55
56 #endif
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