diff options
Diffstat (limited to 'drivers/gpu/nvgpu/perf/perf.c')
-rw-r--r-- | drivers/gpu/nvgpu/perf/perf.c | 118 |
1 files changed, 118 insertions, 0 deletions
diff --git a/drivers/gpu/nvgpu/perf/perf.c b/drivers/gpu/nvgpu/perf/perf.c new file mode 100644 index 00000000..41ebb315 --- /dev/null +++ b/drivers/gpu/nvgpu/perf/perf.c | |||
@@ -0,0 +1,118 @@ | |||
1 | /* | ||
2 | * Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved. | ||
3 | * | ||
4 | * This program is free software; you can redistribute it and/or modify it | ||
5 | * under the terms and conditions of the GNU General Public License, | ||
6 | * version 2, as published by the Free Software Foundation. | ||
7 | * | ||
8 | * This program is distributed in the hope it will be useful, but WITHOUT | ||
9 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | ||
10 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for | ||
11 | * more details. | ||
12 | */ | ||
13 | |||
14 | #include "gk20a/gk20a.h" | ||
15 | #include "perf.h" | ||
16 | #include "pmuif/gpmuifperf.h" | ||
17 | #include "pmuif/gpmuifperfvfe.h" | ||
18 | #include "gk20a/pmu_gk20a.h" | ||
19 | #include "clk/clk_arb.h" | ||
20 | |||
21 | struct perfrpc_pmucmdhandler_params { | ||
22 | struct nv_pmu_perf_rpc *prpccall; | ||
23 | u32 success; | ||
24 | }; | ||
25 | |||
26 | static void perfrpc_pmucmdhandler(struct gk20a *g, struct pmu_msg *msg, | ||
27 | void *param, u32 handle, u32 status) | ||
28 | { | ||
29 | struct perfrpc_pmucmdhandler_params *phandlerparams = | ||
30 | (struct perfrpc_pmucmdhandler_params *)param; | ||
31 | |||
32 | gk20a_dbg_info(""); | ||
33 | |||
34 | if (msg->msg.perf.msg_type != NV_PMU_PERF_MSG_ID_RPC) { | ||
35 | gk20a_err(dev_from_gk20a(g), | ||
36 | "unsupported msg for VFE LOAD RPC %x", | ||
37 | msg->msg.perf.msg_type); | ||
38 | return; | ||
39 | } | ||
40 | |||
41 | if (phandlerparams->prpccall->b_supported) | ||
42 | phandlerparams->success = 1; | ||
43 | } | ||
44 | |||
45 | static int pmu_handle_perf_event(struct gk20a *g, void *pmu_msg) | ||
46 | { | ||
47 | struct nv_pmu_perf_msg *msg = (struct nv_pmu_perf_msg *)pmu_msg; | ||
48 | |||
49 | gk20a_dbg_fn(""); | ||
50 | switch (msg->msg_type) { | ||
51 | case NV_PMU_PERF_MSG_ID_VFE_CALLBACK: | ||
52 | nvgpu_clk_arb_schedule_vf_table_update(g); | ||
53 | break; | ||
54 | default: | ||
55 | WARN_ON(1); | ||
56 | break; | ||
57 | } | ||
58 | return 0; | ||
59 | } | ||
60 | |||
61 | u32 perf_pmu_vfe_load(struct gk20a *g) | ||
62 | { | ||
63 | struct pmu_cmd cmd; | ||
64 | struct pmu_msg msg; | ||
65 | struct pmu_payload payload = { {0} }; | ||
66 | u32 status; | ||
67 | u32 seqdesc; | ||
68 | struct nv_pmu_perf_rpc rpccall = {0}; | ||
69 | struct perfrpc_pmucmdhandler_params handler = {0}; | ||
70 | |||
71 | /*register call back for future VFE updates*/ | ||
72 | g->ops.perf.handle_pmu_perf_event = pmu_handle_perf_event; | ||
73 | |||
74 | rpccall.function = NV_PMU_PERF_RPC_ID_VFE_LOAD; | ||
75 | rpccall.params.vfe_load.b_load = true; | ||
76 | cmd.hdr.unit_id = PMU_UNIT_PERF; | ||
77 | cmd.hdr.size = (u32)sizeof(struct nv_pmu_perf_cmd) + | ||
78 | (u32)sizeof(struct pmu_hdr); | ||
79 | |||
80 | cmd.cmd.perf.cmd_type = NV_PMU_PERF_CMD_ID_RPC; | ||
81 | msg.hdr.size = sizeof(struct pmu_msg); | ||
82 | |||
83 | payload.in.buf = (u8 *)&rpccall; | ||
84 | payload.in.size = (u32)sizeof(struct nv_pmu_perf_rpc); | ||
85 | payload.in.fb_size = PMU_CMD_SUBMIT_PAYLOAD_PARAMS_FB_SIZE_UNUSED; | ||
86 | payload.in.offset = NV_PMU_PERF_CMD_RPC_ALLOC_OFFSET; | ||
87 | |||
88 | payload.out.buf = (u8 *)&rpccall; | ||
89 | payload.out.size = (u32)sizeof(struct nv_pmu_perf_rpc); | ||
90 | payload.out.fb_size = PMU_CMD_SUBMIT_PAYLOAD_PARAMS_FB_SIZE_UNUSED; | ||
91 | payload.out.offset = NV_PMU_PERF_MSG_RPC_ALLOC_OFFSET; | ||
92 | |||
93 | handler.prpccall = &rpccall; | ||
94 | handler.success = 0; | ||
95 | |||
96 | status = gk20a_pmu_cmd_post(g, &cmd, NULL, &payload, | ||
97 | PMU_COMMAND_QUEUE_LPQ, | ||
98 | perfrpc_pmucmdhandler, (void *)&handler, | ||
99 | &seqdesc, ~0); | ||
100 | |||
101 | if (status) { | ||
102 | gk20a_err(dev_from_gk20a(g), | ||
103 | "unable to post perf RPC cmd %x", | ||
104 | cmd.cmd.perf.cmd_type); | ||
105 | goto done; | ||
106 | } | ||
107 | |||
108 | pmu_wait_message_cond(&g->pmu, | ||
109 | gk20a_get_gr_idle_timeout(g), | ||
110 | &handler.success, 1); | ||
111 | |||
112 | if (handler.success == 0) { | ||
113 | status = -EINVAL; | ||
114 | gk20a_err(dev_from_gk20a(g), "rpc call to load VFE failed"); | ||
115 | } | ||
116 | done: | ||
117 | return status; | ||
118 | } | ||