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https://github.com/NVIDIA/open-gpu-kernel-modules.git
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106 lines
3.1 KiB
C
106 lines
3.1 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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#include "uvm_linux.h"
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#include "uvm_perf_heuristics.h"
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#include "uvm_perf_thrashing.h"
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#include "uvm_perf_prefetch.h"
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#include "uvm_gpu_access_counters.h"
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#include "uvm_va_space.h"
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NV_STATUS uvm_perf_heuristics_init(void)
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{
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NV_STATUS status;
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status = uvm_perf_thrashing_init();
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if (status != NV_OK)
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return status;
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status = uvm_perf_prefetch_init();
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if (status != NV_OK)
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return status;
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status = uvm_perf_access_counters_init();
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if (status != NV_OK)
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return status;
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return NV_OK;
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}
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void uvm_perf_heuristics_exit(void)
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{
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uvm_perf_access_counters_exit();
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uvm_perf_thrashing_exit();
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}
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NV_STATUS uvm_perf_heuristics_add_gpu(uvm_gpu_t *gpu)
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{
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uvm_assert_mutex_locked(&g_uvm_global.global_lock);
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return uvm_perf_thrashing_add_gpu(gpu);
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}
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void uvm_perf_heuristics_remove_gpu(uvm_gpu_t *gpu)
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{
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uvm_assert_mutex_locked(&g_uvm_global.global_lock);
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uvm_perf_thrashing_remove_gpu(gpu);
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}
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NV_STATUS uvm_perf_heuristics_load(uvm_va_space_t *va_space)
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{
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NV_STATUS status;
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status = uvm_perf_thrashing_load(va_space);
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if (status != NV_OK)
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return status;
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status = uvm_perf_access_counters_load(va_space);
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if (status != NV_OK)
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return status;
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return NV_OK;
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}
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void uvm_perf_heuristics_register_gpu(uvm_va_space_t *va_space, uvm_gpu_t *gpu)
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{
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uvm_assert_rwsem_locked_write(&va_space->lock);
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uvm_perf_thrashing_register_gpu(va_space, gpu);
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}
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void uvm_perf_heuristics_stop(uvm_va_space_t *va_space)
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{
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uvm_assert_lockable_order(UVM_LOCK_ORDER_VA_SPACE);
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// Prefetch heuristics don't need a stop operation for now
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uvm_perf_thrashing_stop(va_space);
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}
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void uvm_perf_heuristics_unload(uvm_va_space_t *va_space)
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{
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uvm_assert_rwsem_locked_write(&va_space->lock);
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uvm_perf_access_counters_unload(va_space);
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uvm_perf_thrashing_unload(va_space);
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}
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