diff options
Diffstat (limited to 'drivers/gpu/nvgpu/vgpu/tsg_vgpu.c')
-rw-r--r-- | drivers/gpu/nvgpu/vgpu/tsg_vgpu.c | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/drivers/gpu/nvgpu/vgpu/tsg_vgpu.c b/drivers/gpu/nvgpu/vgpu/tsg_vgpu.c new file mode 100644 index 00000000..9245693d --- /dev/null +++ b/drivers/gpu/nvgpu/vgpu/tsg_vgpu.c | |||
@@ -0,0 +1,85 @@ | |||
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 | * You should have received a copy of the GNU General Public License | ||
14 | * along with this program. If not, see <http://www.gnu.org/licenses/>. | ||
15 | */ | ||
16 | |||
17 | #include <linux/kernel.h> | ||
18 | #include <linux/tegra_vgpu.h> | ||
19 | |||
20 | #include "gk20a/gk20a.h" | ||
21 | #include "gk20a/channel_gk20a.h" | ||
22 | #include "gk20a/platform_gk20a.h" | ||
23 | #include "gk20a/tsg_gk20a.h" | ||
24 | #include "vgpu.h" | ||
25 | |||
26 | static int vgpu_tsg_bind_channel(struct tsg_gk20a *tsg, | ||
27 | struct channel_gk20a *ch) | ||
28 | { | ||
29 | struct gk20a_platform *platform = gk20a_get_platform(tsg->g->dev); | ||
30 | struct tegra_vgpu_cmd_msg msg = {}; | ||
31 | struct tegra_vgpu_tsg_bind_unbind_channel_params *p = | ||
32 | &msg.params.tsg_bind_unbind_channel; | ||
33 | int err; | ||
34 | |||
35 | gk20a_dbg_fn(""); | ||
36 | |||
37 | err = gk20a_tsg_bind_channel(tsg, ch); | ||
38 | if (err) | ||
39 | return err; | ||
40 | |||
41 | msg.cmd = TEGRA_VGPU_CMD_TSG_BIND_CHANNEL; | ||
42 | msg.handle = platform->virt_handle; | ||
43 | p->tsg_id = tsg->tsgid; | ||
44 | p->ch_handle = ch->virt_ctx; | ||
45 | err = vgpu_comm_sendrecv(&msg, sizeof(msg), sizeof(msg)); | ||
46 | err = err ? err : msg.ret; | ||
47 | if (err) { | ||
48 | gk20a_err(dev_from_gk20a(tsg->g), | ||
49 | "vgpu_tsg_bind_channel failed, ch %d tsgid %d", | ||
50 | ch->hw_chid, tsg->tsgid); | ||
51 | gk20a_tsg_unbind_channel(ch); | ||
52 | } | ||
53 | |||
54 | return err; | ||
55 | } | ||
56 | |||
57 | static int vgpu_tsg_unbind_channel(struct channel_gk20a *ch) | ||
58 | { | ||
59 | struct gk20a_platform *platform = gk20a_get_platform(ch->g->dev); | ||
60 | struct tegra_vgpu_cmd_msg msg = {}; | ||
61 | struct tegra_vgpu_tsg_bind_unbind_channel_params *p = | ||
62 | &msg.params.tsg_bind_unbind_channel; | ||
63 | int err; | ||
64 | |||
65 | gk20a_dbg_fn(""); | ||
66 | |||
67 | err = gk20a_tsg_unbind_channel(ch); | ||
68 | if (err) | ||
69 | return err; | ||
70 | |||
71 | msg.cmd = TEGRA_VGPU_CMD_TSG_UNBIND_CHANNEL; | ||
72 | msg.handle = platform->virt_handle; | ||
73 | p->ch_handle = ch->virt_ctx; | ||
74 | err = vgpu_comm_sendrecv(&msg, sizeof(msg), sizeof(msg)); | ||
75 | err = err ? err : msg.ret; | ||
76 | WARN_ON(err); | ||
77 | |||
78 | return err; | ||
79 | } | ||
80 | |||
81 | void vgpu_init_tsg_ops(struct gpu_ops *gops) | ||
82 | { | ||
83 | gops->fifo.tsg_bind_channel = vgpu_tsg_bind_channel; | ||
84 | gops->fifo.tsg_unbind_channel = vgpu_tsg_unbind_channel; | ||
85 | } | ||