58 lines
2.6 KiB
C
58 lines
2.6 KiB
C
/*******************************************************************************
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Copyright (c) 2016-2019 NVIDIA Corporation
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to
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deal in the Software without restriction, including without limitation the
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rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
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sell copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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DEALINGS IN THE SOFTWARE.
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*******************************************************************************/
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#ifndef __UVM_PERF_HEURISTICS_H__
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#define __UVM_PERF_HEURISTICS_H__
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#include "nvtypes.h"
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#include "uvm_forward_decl.h"
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// Global initialization/cleanup functions
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NV_STATUS uvm_perf_heuristics_init(void);
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void uvm_perf_heuristics_exit(void);
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// Per-GPU initialization/cleanup functions. They are called from add_gpu,
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// remove_gpu.
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//
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// Locking: the global lock must be held when calling this function
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NV_STATUS uvm_perf_heuristics_add_gpu(uvm_gpu_t *gpu);
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void uvm_perf_heuristics_remove_gpu(uvm_gpu_t *gpu);
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// Per-VA space initialization/cleanup functions
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// This function is called during VA space creation
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NV_STATUS uvm_perf_heuristics_load(uvm_va_space_t *va_space);
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// This function is called when a GPU is registered on a VA space
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void uvm_perf_heuristics_register_gpu(uvm_va_space_t *va_space, uvm_gpu_t *gpu);
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// The following two functions are called during VA space teardown.
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// uvm_perf_heuristics_stop is called first with no lock taken on the VA space.
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// This is required because the performance heuristics modues may have scheduled
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// delayed work that needs to take the VA space lock. Therefore,
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// uvm_perf_heuristics_stop needs to cancel/flush any pending work.
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void uvm_perf_heuristics_stop(uvm_va_space_t *va_space);
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void uvm_perf_heuristics_unload(uvm_va_space_t *va_space);
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#endif
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