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/*
* Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
* DEALINGS IN THE SOFTWARE.
*/
#ifndef NVGPU_FECS_TRACE_H
#define NVGPU_FECS_TRACE_H
struct gk20a;
/*
* If HW circular buffer is getting too many "buffer full" conditions,
* increasing this constant should help (it drives Linux' internal buffer size).
*/
#define GK20A_FECS_TRACE_NUM_RECORDS (1 << 10)
#define GK20A_FECS_TRACE_HASH_BITS 8 /* 2^8 */
#define GK20A_FECS_TRACE_FRAME_PERIOD_US (1000000ULL/60ULL)
#define GK20A_FECS_TRACE_PTIMER_SHIFT 5
struct gk20a_fecs_trace_record {
u32 magic_lo;
u32 magic_hi;
u32 context_id;
u32 context_ptr;
u32 new_context_id;
u32 new_context_ptr;
u64 ts[];
};
#ifdef CONFIG_GK20A_CTXSW_TRACE
u32 gk20a_fecs_trace_record_ts_tag_invalid_ts_v(void);
u32 gk20a_fecs_trace_record_ts_tag_v(u64 ts);
u64 gk20a_fecs_trace_record_ts_timestamp_v(u64 ts);
int gk20a_fecs_trace_num_ts(void);
struct gk20a_fecs_trace_record *gk20a_fecs_trace_get_record(struct gk20a *g,
int idx);
bool gk20a_fecs_trace_is_valid_record(struct gk20a_fecs_trace_record *r);
int gk20a_fecs_trace_get_read_index(struct gk20a *g);
int gk20a_fecs_trace_get_write_index(struct gk20a *g);
#endif /* CONFIG_GK20A_CTXSW_TRACE */
#endif
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