diff options
Diffstat (limited to 'drivers/gpu/drm/panthor/panthor_gpu.h')
| -rw-r--r-- | drivers/gpu/drm/panthor/panthor_gpu.h | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/drivers/gpu/drm/panthor/panthor_gpu.h b/drivers/gpu/drm/panthor/panthor_gpu.h new file mode 100644 index 000000000000..bba7555dd3c6 --- /dev/null +++ b/drivers/gpu/drm/panthor/panthor_gpu.h @@ -0,0 +1,52 @@ +/* SPDX-License-Identifier: GPL-2.0 or MIT */ +/* Copyright 2018 Marty E. Plummer <hanetzer@startmail.com> */ +/* Copyright 2019 Collabora ltd. */ + +#ifndef __PANTHOR_GPU_H__ +#define __PANTHOR_GPU_H__ + +struct panthor_device; + +int panthor_gpu_init(struct panthor_device *ptdev); +void panthor_gpu_unplug(struct panthor_device *ptdev); +void panthor_gpu_suspend(struct panthor_device *ptdev); +void panthor_gpu_resume(struct panthor_device *ptdev); + +int panthor_gpu_block_power_on(struct panthor_device *ptdev, + const char *blk_name, + u32 pwron_reg, u32 pwrtrans_reg, + u32 rdy_reg, u64 mask, u32 timeout_us); +int panthor_gpu_block_power_off(struct panthor_device *ptdev, + const char *blk_name, + u32 pwroff_reg, u32 pwrtrans_reg, + u64 mask, u32 timeout_us); + +/** + * panthor_gpu_power_on() - Power on the GPU block. + * + * Return: 0 on success, a negative error code otherwise. + */ +#define panthor_gpu_power_on(ptdev, type, mask, timeout_us) \ + panthor_gpu_block_power_on(ptdev, #type, \ + type ## _PWRON_LO, \ + type ## _PWRTRANS_LO, \ + type ## _READY_LO, \ + mask, timeout_us) + +/** + * panthor_gpu_power_off() - Power off the GPU block. + * + * Return: 0 on success, a negative error code otherwise. + */ +#define panthor_gpu_power_off(ptdev, type, mask, timeout_us) \ + panthor_gpu_block_power_off(ptdev, #type, \ + type ## _PWROFF_LO, \ + type ## _PWRTRANS_LO, \ + mask, timeout_us) + +int panthor_gpu_l2_power_on(struct panthor_device *ptdev); +int panthor_gpu_flush_caches(struct panthor_device *ptdev, + u32 l2, u32 lsc, u32 other); +int panthor_gpu_soft_reset(struct panthor_device *ptdev); + +#endif |