1 /*
2 * Copyright 2023 Red Hat Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 */
22 #include <rm/rpc.h>
23
24 #include "nvrm/ctrl.h"
25 #include "nvrm/rpcfn.h"
26
27 static void
r535_gsp_rpc_rm_ctrl_done(struct nvkm_gsp_object * object,void * params)28 r535_gsp_rpc_rm_ctrl_done(struct nvkm_gsp_object *object, void *params)
29 {
30 rpc_gsp_rm_control_v03_00 *rpc = to_payload_hdr(params, rpc);
31
32 if (!params)
33 return;
34 nvkm_gsp_rpc_done(object->client->gsp, rpc);
35 }
36
37 static int
r535_gsp_rpc_rm_ctrl_push(struct nvkm_gsp_object * object,void ** params,u32 repc)38 r535_gsp_rpc_rm_ctrl_push(struct nvkm_gsp_object *object, void **params, u32 repc)
39 {
40 rpc_gsp_rm_control_v03_00 *rpc = to_payload_hdr((*params), rpc);
41 struct nvkm_gsp *gsp = object->client->gsp;
42 int ret = 0;
43
44 rpc = nvkm_gsp_rpc_push(gsp, rpc, NVKM_GSP_RPC_REPLY_RECV, repc);
45 if (IS_ERR_OR_NULL(rpc)) {
46 *params = NULL;
47 return PTR_ERR(rpc);
48 }
49
50 if (rpc->status) {
51 ret = r535_rpc_status_to_errno(rpc->status);
52 if (ret != -EAGAIN && ret != -EBUSY)
53 nvkm_error(&gsp->subdev, "cli:0x%08x obj:0x%08x ctrl cmd:0x%08x failed: 0x%08x\n",
54 object->client->object.handle, object->handle, rpc->cmd, rpc->status);
55 }
56
57 if (repc)
58 *params = rpc->params;
59 else
60 nvkm_gsp_rpc_done(gsp, rpc);
61
62 return ret;
63 }
64
65 static void *
r535_gsp_rpc_rm_ctrl_get(struct nvkm_gsp_object * object,u32 cmd,u32 params_size)66 r535_gsp_rpc_rm_ctrl_get(struct nvkm_gsp_object *object, u32 cmd, u32 params_size)
67 {
68 struct nvkm_gsp_client *client = object->client;
69 struct nvkm_gsp *gsp = client->gsp;
70 rpc_gsp_rm_control_v03_00 *rpc;
71
72 nvkm_debug(&gsp->subdev, "cli:0x%08x obj:0x%08x ctrl cmd:0x%08x params_size:%d\n",
73 client->object.handle, object->handle, cmd, params_size);
74
75 rpc = nvkm_gsp_rpc_get(gsp, NV_VGPU_MSG_FUNCTION_GSP_RM_CONTROL,
76 sizeof(*rpc) + params_size);
77 if (IS_ERR(rpc))
78 return rpc;
79
80 rpc->hClient = client->object.handle;
81 rpc->hObject = object->handle;
82 rpc->cmd = cmd;
83 rpc->status = 0;
84 rpc->paramsSize = params_size;
85 return rpc->params;
86 }
87
88 const struct nvkm_rm_api_ctrl
89 r535_ctrl = {
90 .get = r535_gsp_rpc_rm_ctrl_get,
91 .push = r535_gsp_rpc_rm_ctrl_push,
92 .done = r535_gsp_rpc_rm_ctrl_done,
93 };
94