panthor_gpu.h

 1/* SPDX-License-Identifier: GPL-2.0 or MIT */
 2/* Copyright 2018 Marty E. Plummer <hanetzer@startmail.com> */
 3/* Copyright 2019 Collabora ltd. */
 4
 5#ifndef __PANTHOR_GPU_H__
 6#define __PANTHOR_GPU_H__
 7
 8#include <linux/types.h>
 9
10struct panthor_device;
11
12int panthor_gpu_init(struct panthor_device *ptdev);
13void panthor_gpu_unplug(struct panthor_device *ptdev);
14void panthor_gpu_suspend(struct panthor_device *ptdev);
15void panthor_gpu_resume(struct panthor_device *ptdev);
16
17int 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);
21int 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, \
34				  type ## _PWRTRANS, \
35				  type ## _READY, \
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, \
46				   type ## _PWRTRANS, \
47				   mask, timeout_us)
48
49void panthor_gpu_l2_power_off(struct panthor_device *ptdev);
50int panthor_gpu_l2_power_on(struct panthor_device *ptdev);
51int panthor_gpu_flush_caches(struct panthor_device *ptdev,
52			     u32 l2, u32 lsc, u32 other);
53int panthor_gpu_soft_reset(struct panthor_device *ptdev);
54
55#endif