Files
linux-nvgpu/drivers/gpu/nvgpu/common/pmu/perf/perf_ps35.c
Sagar Kamble 16953b9622 gpu: nvgpu: prepare pmu command unit
pmu_ipc.c had functionality for rpc response handling and message cond
checks. This patch moves them to msg unit. And prepare cmd.h to group
together structs and functions related PMU commands.

JIRA NVGPU-1970

Change-Id: Iec5d72d02ab3ee51963631c828b301c56af8dc48
Signed-off-by: Sagar Kamble <skamble@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/2079146
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
2019-04-05 05:06:22 -07:00

122 lines
3.4 KiB
C

/*
* GV100 PERF
*
* Copyright (c) 2018-2019, 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.
*/
#include <nvgpu/pmu.h>
#include <nvgpu/bug.h>
#include <nvgpu/gk20a.h>
#include <nvgpu/clk_arb.h>
#include <nvgpu/pmu/perf.h>
#include <nvgpu/pmu/cmd.h>
#include "pmu_perf.h"
static int pmu_set_boot_clk_runcb_fn(void *arg)
{
struct gk20a *g = (struct gk20a *)arg;
struct perf_pmupstate *perf_pmu = g->perf_pmu;
struct nvgpu_vfe_invalidate *vfe_init = &perf_pmu->vfe_init;
nvgpu_log_fn(g, "thread start");
while (true) {
NVGPU_COND_WAIT_INTERRUPTIBLE(&vfe_init->wq,
(vfe_init->state_change ||
nvgpu_thread_should_stop(&vfe_init->state_task)), 0U);
if (nvgpu_thread_should_stop(&vfe_init->state_task)) {
break;
}
vfe_init->state_change = false;
nvgpu_clk_arb_schedule_vf_table_update(g);
}
return 0;
}
static int tu104_pmu_handle_perf_event(struct gk20a *g, void *pmumsg)
{
struct nv_pmu_perf_msg *msg = (struct nv_pmu_perf_msg *)pmumsg;
struct perf_pmupstate *perf_pmu = g->perf_pmu;
nvgpu_log_fn(g, " ");
switch (msg->msg_type) {
case NV_PMU_PERF_MSG_ID_VFE_CALLBACK:
perf_pmu->vfe_init.state_change = true;
(void) nvgpu_cond_signal(&perf_pmu->vfe_init.wq);
break;
case NV_PMU_PERF_MSG_ID_CHANGE_SEQ_COMPLETION:
nvgpu_log_fn(g, "Change Seq Completed");
break;
default:
WARN_ON(true);
break;
}
return 0;
}
static int perf_pmu_init_vfe_perf_event(struct gk20a *g)
{
struct perf_pmupstate *perf_pmu = g->perf_pmu;
char thread_name[64];
int err = 0;
nvgpu_log_fn(g, " ");
nvgpu_cond_init(&perf_pmu->vfe_init.wq);
(void) snprintf(thread_name, sizeof(thread_name),
"nvgpu_vfe_invalidate_init_%s", g->name);
err = nvgpu_thread_create(&perf_pmu->vfe_init.state_task, g,
pmu_set_boot_clk_runcb_fn, thread_name);
if (err != 0) {
nvgpu_err(g, "failed to start nvgpu_vfe_invalidate_init thread");
}
return err;
}
int nvgpu_perf_pmu_vfe_load_ps35(struct gk20a *g)
{
struct nvgpu_pmu *pmu = &g->pmu;
struct nv_pmu_rpc_struct_perf_load rpc;
int status = 0;
(void) memset(&rpc, 0, sizeof(struct nv_pmu_rpc_struct_perf_load));
rpc.b_load = true;
PMU_RPC_EXECUTE_CPB(status, pmu, PERF, LOAD, &rpc, 0);
if (status != 0) {
nvgpu_err(g, "Failed to execute RPC status=0x%x",
status);
}
status = perf_pmu_init_vfe_perf_event(g);
/*register call back for future VFE updates*/
g->ops.pmu_perf.handle_pmu_perf_event = tu104_pmu_handle_perf_event;
return status;
}