/*
* Copyright (c) 2016-2017, NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
* version 2, as published by the Free Software Foundation.
*
* This program is distributed in the hope it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*/
#include <nvgpu/bug.h>
#include <nvgpu/pmu.h>
#include "gk20a/gk20a.h"
#include "perf.h"
#include "clk/clk_arb.h"
struct perfrpc_pmucmdhandler_params {
struct nv_pmu_perf_rpc *prpccall;
u32 success;
};
static void perfrpc_pmucmdhandler(struct gk20a *g, struct pmu_msg *msg,
void *param, u32 handle, u32 status)
{
struct perfrpc_pmucmdhandler_params *phandlerparams =
(struct perfrpc_pmucmdhandler_params *)param;
gk20a_dbg_info("");
if (msg->msg.perf.msg_type != NV_PMU_PERF_MSG_ID_RPC) {
nvgpu_err(g, "unsupported msg for VFE LOAD RPC %x",
msg->msg.perf.msg_type);
return;
}
if (phandlerparams->prpccall->b_supported)
phandlerparams->success = 1;
}
static int pmu_handle_perf_event(struct gk20a *g, void *pmu_msg)
{
struct nv_pmu_perf_msg *msg = (struct nv_pmu_perf_msg *)pmu_msg;
gk20a_dbg_fn("");
switch (msg->msg_type) {
case NV_PMU_PERF_MSG_ID_VFE_CALLBACK:
nvgpu_clk_arb_schedule_vf_table_update(g);
break;
default:
WARN_ON(1);
break;
}
return 0;
}
u32 perf_pmu_vfe_load(struct gk20a *g)
{
struct pmu_cmd cmd;
struct pmu_msg msg;
struct pmu_payload payload;
u32 status;
u32 seqdesc;
struct nv_pmu_perf_rpc rpccall;
struct perfrpc_pmucmdhandler_params handler;
memset(&payload, 0, sizeof(struct pmu_payload));
memset(&rpccall, 0, sizeof(struct nv_pmu_perf_rpc));
memset(&handler, 0, sizeof(struct perfrpc_pmucmdhandler_params));
/*register call back for future VFE updates*/
g->ops.perf.handle_pmu_perf_event = pmu_handle_perf_event;
rpccall.function = NV_PMU_PERF_RPC_ID_VFE_LOAD;
rpccall.params.vfe_load.b_load = true;
cmd.hdr.unit_id = PMU_UNIT_PERF;
cmd.hdr.size = (u32)sizeof(struct nv_pmu_perf_cmd) +
(u32)sizeof(struct pmu_hdr);
cmd.cmd.perf.cmd_type = NV_PMU_PERF_CMD_ID_RPC;
msg.hdr.size = sizeof(struct pmu_msg);
payload.in.buf = (u8 *)&rpccall;
payload.in.size = (u32)sizeof(struct nv_pmu_perf_rpc);
payload.in.fb_size = PMU_CMD_SUBMIT_PAYLOAD_PARAMS_FB_SIZE_UNUSED;
payload.in.offset = NV_PMU_PERF_CMD_RPC_ALLOC_OFFSET;
payload.out.buf = (u8 *)&rpccall;
payload.out.size = (u32)sizeof(struct nv_pmu_perf_rpc);
payload.out.fb_size = PMU_CMD_SUBMIT_PAYLOAD_PARAMS_FB_SIZE_UNUSED;
payload.out.offset = NV_PMU_PERF_MSG_RPC_ALLOC_OFFSET;
handler.prpccall = &rpccall;
handler.success = 0;
status = gk20a_pmu_cmd_post(g, &cmd, NULL, &payload,
PMU_COMMAND_QUEUE_LPQ,
perfrpc_pmucmdhandler, (void *)&handler,
&seqdesc, ~0);
if (status) {
nvgpu_err(g, "unable to post perf RPC cmd %x",
cmd.cmd.perf.cmd_type);
goto done;
}
pmu_wait_message_cond(&g->pmu,
gk20a_get_gr_idle_timeout(g),
&handler.success, 1);
if (handler.success == 0) {
status = -EINVAL;
nvgpu_err(g, "rpc call to load VFE failed");
}
done:
return status;
}
