1 /* 2 * 3 * (C) COPYRIGHT 2014 ARM Limited. All rights reserved. 4 * 5 * This program is free software and is provided to you under the terms of the 6 * GNU General Public License version 2 as published by the Free Software 7 * Foundation, and any use by you of this program is subject to the terms 8 * of such GNU licence. 9 * 10 * A copy of the licence is included with the program, and can also be obtained 11 * from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, 12 * Boston, MA 02110-1301, USA. 13 * 14 */ 15 16 17 18 19 /** 20 * 21 */ 22 23 #ifndef _KBASE_BACKEND_TIME_H_ 24 #define _KBASE_BACKEND_TIME_H_ 25 26 /** 27 * kbase_backend_get_gpu_time() - Get current GPU time 28 * @kbdev: Device pointer 29 * @cycle_counter: Pointer to u64 to store cycle counter in 30 * @system_time: Pointer to u64 to store system time in 31 * @ts: Pointer to struct timespec64 to store current monotonic 32 * time in 33 */ 34 void kbase_backend_get_gpu_time(struct kbase_device *kbdev, u64 *cycle_counter, 35 u64 *system_time, struct timespec64 *ts); 36 37 /** 38 * kbase_wait_write_flush() - Wait for GPU write flush 39 * @kctx: Context pointer 40 * 41 * Wait 1000 GPU clock cycles. This delay is known to give the GPU time to flush 42 * its write buffer. 43 * 44 * If GPU resets occur then the counters are reset to zero, the delay may not be 45 * as expected. 46 * 47 * This function is only in use for BASE_HW_ISSUE_6367 48 */ 49 #ifndef CONFIG_MALI_NO_MALI 50 void kbase_wait_write_flush(struct kbase_context *kctx); 51 #endif 52 53 #endif /* _KBASE_BACKEND_TIME_H_ */ 54