From 6d758eb81bcbff4e50df5c9fa67a369a4e1f2074 Mon Sep 17 00:00:00 2001 From: seshendra Gadagottu Date: Thu, 29 Jun 2017 15:59:05 -0700 Subject: gpu: nvgpu: gv11b: support for full subcontext 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 Reviewed-on: https://git-master/r/1511145 Reviewed-by: Terje Bergstrom GVS: Gerrit_Virtual_Submit --- include/uapi/linux/nvgpu-t19x.h | 22 +++++++++++++++++++++- 1 file changed, 21 insertions(+), 1 deletion(-) (limited to 'include/uapi/linux/nvgpu-t19x.h') diff --git a/include/uapi/linux/nvgpu-t19x.h b/include/uapi/linux/nvgpu-t19x.h index 6a10fb77..96514a88 100644 --- a/include/uapi/linux/nvgpu-t19x.h +++ b/include/uapi/linux/nvgpu-t19x.h @@ -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_ */ -- cgit v1.2.2