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 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 57