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gpu: nvgpu: add NVGPU_SUBMIT_GPFIFO_FLAGS_RESCHEDULE_RUNLIST

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NVGPU_SUBMIT_GPFIFO_FLAGS_RESCHEDULE_RUNLIST causes host to expire
current timeslice and reschedule from front of runlist.
This can be used with NVGPU_RUNLIST_INTERLEAVE_LEVEL_HIGH to make a
channel start sooner after submit rather than waiting for natural
timeslice expiration or block/finish of currently running channel.

Bug 1968813

Change-Id: I632e87c5f583a09ec8bf521dc73f595150abebb0
Signed-off-by: David Li <davli@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1537218
GVS: Gerrit_Virtual_Submit
Reviewed-by: Aingara Paramakuru <aparamakuru@nvidia.com>
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
This commit is contained in:
David Li
2017-08-10 21:44:28 -07:00
committed by mobile promotions
parent 572c509152
commit 813d081ba5
9 changed files with 47 additions and 3 deletions
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4
include/uapi/linux/nvgpu.h
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@@ -137,6 +137,8 @@ struct nvgpu_gpu_zbc_query_table_args {
#define NVGPU_GPU_FLAGS_SUPPORT_FECS_CTXSW_TRACE (1ULL << 16)
/* NVGPU_AS_IOCTL_MAP_BUFFER_COMPBITS is available */
#define NVGPU_GPU_FLAGS_SUPPORT_MAP_COMPBITS (1ULL << 17)
/* NVGPU_SUBMIT_GPFIFO_FLAGS_RESCHEDULE_RUNLIST is available */
#define NVGPU_GPU_FLAGS_SUPPORT_RESCHEDULE_RUNLIST (1ULL << 21)
struct nvgpu_gpu_characteristics {
__u32 arch;
@@ -1376,6 +1378,8 @@ struct nvgpu_fence {
#define NVGPU_SUBMIT_GPFIFO_FLAGS_SUPPRESS_WFI (1 << 4)
/* skip buffer refcounting during submit */
#define NVGPU_SUBMIT_GPFIFO_FLAGS_SKIP_BUFFER_REFCOUNTING (1 << 5)
/* expire current timeslice and reschedule runlist from front */
#define NVGPU_SUBMIT_GPFIFO_FLAGS_RESCHEDULE_RUNLIST (1 << 6)
struct nvgpu_submit_gpfifo_args {
__u64 gpfifo;