From 00c3d98acba40e0ee549a174f212850aa15646a5 Mon Sep 17 00:00:00 2001 From: Sagar Kamble Date: Mon, 3 May 2021 21:46:17 +0530 Subject: gpu: nvgpu: create timed wait functions for stall and nonstall interrupts completion In order to process stalling interrupts during TSG unbind, we need a API to wait for the stalling interrupts to complete within certain duration. Prepare these APIs for stalling and non-stalling interrupts. Bug 200711183 Bug 200726848 Change-Id: I634738249ade64224326b356d6244ad4299f1baf Signed-off-by: Sagar Kamble Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2521970 (cherry picked from commit I0b7a64c0f3761bbd0ca0843aea28a591ed23739f) Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2523937 Reviewed-by: svc-mobile-coverity Reviewed-by: Deepak Nibade Reviewed-by: Bibek Basu Reviewed-by: mobile promotions Tested-by: mobile promotions GVS: Gerrit_Virtual_Submit --- drivers/gpu/nvgpu/os/posix/nvgpu.c | 18 +++++++++++++++++- 1 file changed, 17 insertions(+), 1 deletion(-) (limited to 'drivers/gpu/nvgpu/os/posix') diff --git a/drivers/gpu/nvgpu/os/posix/nvgpu.c b/drivers/gpu/nvgpu/os/posix/nvgpu.c index e485ed73..5b68113c 100644 --- a/drivers/gpu/nvgpu/os/posix/nvgpu.c +++ b/drivers/gpu/nvgpu/os/posix/nvgpu.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2018, NVIDIA CORPORATION. All rights reserved. + * Copyright (c) 2018-2021, NVIDIA CORPORATION. All rights reserved. * * Permission is hereby granted, free of charge, to any person obtaining a * copy of this software and associated documentation files (the "Software"), @@ -36,6 +36,22 @@ #include "os_posix.h" +int nvgpu_wait_for_stall_interrupts(struct gk20a *g, u32 timeout) +{ + /* + * No interrupts in userspace so nothing to wait for. + */ + return 0; +} + +int nvgpu_wait_for_nonstall_interrupts(struct gk20a *g, u32 timeout) +{ + /* + * No interrupts in userspace so nothing to wait for. + */ + return 0; +} + void nvgpu_wait_for_deferred_interrupts(struct gk20a *g) { /* -- cgit v1.2.2