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84703739a5
Time correlation does not have chip or OS specific dependencies, so move it to generic new source file bus.c. JIRA NVGPU-38 Change-Id: Ic7fdf8c9ccacf05baf1b3438a86b28e517093641 Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com> Reviewed-on: http://git-master/r/1505171 Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
51 lines
1.3 KiB
C
51 lines
1.3 KiB
C
/*
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* Copyright (c) 2017, NVIDIA CORPORATION. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <nvgpu/bus.h>
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#include "gk20a/gk20a.h"
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int nvgpu_get_timestamps_zipper(struct gk20a *g,
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u32 source_id, u32 count,
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struct nvgpu_cpu_time_correlation_sample *samples)
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{
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int err = 0;
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unsigned int i = 0;
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if (source_id != NVGPU_GPU_GET_CPU_TIME_CORRELATION_INFO_SRC_ID_TSC) {
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nvgpu_err(g, "source_id %u not supported", source_id);
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return -EINVAL;
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}
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if (gk20a_busy(g)) {
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nvgpu_err(g, "GPU not powered on\n");
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err = -EINVAL;
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goto end;
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}
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for (i = 0; i < count; i++) {
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err = g->ops.bus.read_ptimer(g, &samples[i].gpu_timestamp);
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if (err)
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return err;
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samples[i].cpu_timestamp = (u64)get_cycles();
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}
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end:
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gk20a_idle(g);
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return err;
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}
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