mirror of
git://nv-tegra.nvidia.com/linux-nvgpu.git
synced 2025-12-22 09:12:24 +03:00
92 lines
2.7 KiB
C
92 lines
2.7 KiB
C
/*
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* Copyright (c) 2019, NVIDIA CORPORATION. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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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 <nvgpu/types.h>
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#include <nvgpu/log.h>
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#include <nvgpu/errno.h>
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#include <nvgpu/ptimer.h>
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#include <nvgpu/vgpu/vgpu.h>
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#include <nvgpu/vgpu/tegra_vgpu.h>
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#include "ptimer_vgpu.h"
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#include "common/vgpu/ivc/comm_vgpu.h"
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int vgpu_read_ptimer(struct gk20a *g, u64 *value)
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{
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struct tegra_vgpu_cmd_msg msg = {0};
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struct tegra_vgpu_read_ptimer_params *p = &msg.params.read_ptimer;
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int err;
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nvgpu_log_fn(g, " ");
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msg.cmd = TEGRA_VGPU_CMD_READ_PTIMER;
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msg.handle = vgpu_get_handle(g);
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err = vgpu_comm_sendrecv(&msg, sizeof(msg), sizeof(msg));
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err = err ? err : msg.ret;
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if (err == 0) {
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*value = p->time;
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} else {
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nvgpu_err(g, "vgpu read ptimer failed, err=%d", err);
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}
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return err;
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}
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int vgpu_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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struct tegra_vgpu_cmd_msg msg = {0};
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struct tegra_vgpu_get_timestamps_zipper_params *p =
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&msg.params.get_timestamps_zipper;
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int err;
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u32 i;
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nvgpu_log_fn(g, " ");
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if (count > TEGRA_VGPU_GET_TIMESTAMPS_ZIPPER_MAX_COUNT) {
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nvgpu_err(g, "count %u overflow", count);
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return -EINVAL;
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}
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msg.cmd = TEGRA_VGPU_CMD_GET_TIMESTAMPS_ZIPPER;
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msg.handle = vgpu_get_handle(g);
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p->source_id = TEGRA_VGPU_GET_TIMESTAMPS_ZIPPER_SRC_ID_TSC;
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p->count = count;
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err = vgpu_comm_sendrecv(&msg, sizeof(msg), sizeof(msg));
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err = err ? err : msg.ret;
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if (err != 0) {
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nvgpu_err(g, "vgpu get timestamps zipper failed, err=%d", err);
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return err;
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}
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for (i = 0; i < count; i++) {
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samples[i].cpu_timestamp = p->samples[i].cpu_timestamp;
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samples[i].gpu_timestamp = p->samples[i].gpu_timestamp;
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}
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return err;
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}
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