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gpu: nvgpu: Add a characteristics flag to denote FECS tracing support

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Add a flag to nvgpu_gpu_characteristics to expose FECS tracing capability to
userspace.

This is required for adding nvrm_gpu APIs for CTXSW set of IOCTLs which were
requested in several bugs.
nvrm_gpu APIs would query this flag to check the availability of IOCTLs.

Bug 2169678
Bug 2169677
Bug 2169675
Bug 2169674
Bug 2169673
Bug 2168342

Change-Id: Ie6ba80a4144637546b97fa93baae67b8d0c4d425
Signed-off-by: Anup Mahindre <amahindre@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1950559
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Anup Mahindre
2018-11-14 13:07:06 +05:30
committed by mobile promotions
parent e24df49765
commit a6138b7810
2 changed files with 4 additions and 0 deletions
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1
drivers/gpu/nvgpu/os/linux/ioctl_ctrl.c
View File

@@ -331,6 +331,7 @@ gk20a_ctrl_ioctl_gpu_characteristics(
gpu.ioctl_channel_nr_last = NVGPU_IOCTL_CHANNEL_LAST;
gpu.as_ioctl_nr_last = NVGPU_AS_IOCTL_LAST;
gpu.event_ioctl_nr_last = NVGPU_EVENT_IOCTL_LAST;
gpu.ctxsw_ioctl_nr_last = NVGPU_CTXSW_IOCTL_LAST;
gpu.gpu_va_bit_count = 40;
strlcpy(gpu.chipname, g->name, sizeof(gpu.chipname));

3
include/uapi/linux/nvgpu.h
View File

@@ -280,6 +280,9 @@ struct nvgpu_gpu_characteristics {
__u32 max_css_buffer_size;
__s16 ctxsw_ioctl_nr_last;
__u8 reserved2[6];
/* Notes:
- This struct can be safely appended with new fields. However, always
keep the structure size multiple of 8 and make sure that the binary