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gpu: nvgpu: gv11b: support for full subcontext

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Changes to enable 64 subcontexts: 1 SYNC + 63 ASYNC
Currently all subcontexts with in a tsg can have only
single address space.

Add support for NVGPU_TSG_IOCTL_BIND_CHANNEL_EX for
selecting subctx id by client.

Bug 1842197

Change-Id: Icf56a41303bd1ad7fc6f2a6fbc691bb7b4a01d22
Signed-off-by: seshendra Gadagottu <sgadagottu@nvidia.com>
Reviewed-on: https://git-master/r/1511145
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
GVS: Gerrit_Virtual_Submit
This commit is contained in:
seshendra Gadagottu
2017-06-29 15:59:05 -07:00
committed by mobile promotions
parent 37fa5128ec
commit 6d758eb81b
11 changed files with 248 additions and 42 deletions
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22
include/uapi/linux/nvgpu-t19x.h
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@@ -1,7 +1,7 @@
/*
* NVGPU Public Interface Header
*
* Copyright (c) 2016, NVIDIA CORPORATION. All rights reserved.
* 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,
@@ -27,4 +27,24 @@
#define NVGPU_GPU_ARCH_GV110 0x00000150
#define NVGPU_GPU_IMPL_GV11B 0x0000000B
/* subcontexts are available */
#define NVGPU_GPU_FLAGS_SUPPORT_TSG_SUBCONTEXTS (1ULL << 22)
struct nvgpu_tsg_bind_channel_ex_args {
/* in: channel fd */
__s32 channel_fd;
/* in: VEID in Volta */
__u32 subcontext_id;
__u64 reserved[2];
};
#define NVGPU_TSG_IOCTL_BIND_CHANNEL_EX \
_IOWR(NVGPU_TSG_IOCTL_MAGIC, 11, struct nvgpu_tsg_bind_channel_ex_args)
#define NVGPU_TSG_IOCTL_MAX NVGPU_TSG_IOCTL_BIND_CHANNEL_EX
#define NVGPU_TSG_IOCTL_MAX_ARG sizeof(struct nvgpu_tsg_bind_channel_ex_args)
#endif /* _UAPI__LINUX_NVGPU_T19X_IOCTL_H_ */