1. Add mechanism(s) to trigger syncpoint fence scan when
syncpoint increment UMD called. Following methods are added.
- METHOD-1: Check fence expire in user context when syncpoint
increment UMD API is called.
- METHOD-2: Add tasklet based mechanism that schedule tasklet to scan for
syncpoint fence expiry. This also improve signaling latency.
METHOD-1 is enabled by default, to enable METHOD-2 define MACRO
"HOST1X_EMU_SYNC_INC_TASKLET".
2. Add interface "host1x_syncpt_fence_scan()" that can be called from
client interrupt handler to initiate syncpoint fence scan.
Jira HOSTX-5527
Change-Id: I4d5a0ba9fd67042d824a1df2794b316831001dc4
Signed-off-by: amitabhd <amitabhd@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3267144
Reviewed-by: Raghavendra Vishnu Kumar <rvk@nvidia.com>
Reviewed-by: Sanif Veeras <sveeras@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: Leslin Varghese <lvarghese@nvidia.com>
