From 403874fa75dbb00e974a8d0f88b6e92be01ba42e Mon Sep 17 00:00:00 2001 From: David Nieto Date: Mon, 6 Feb 2017 15:44:55 -0800 Subject: gpu: nvgpu: refactor interrupt handling JIRA: EVLR-1004 (*) Refactor the non-stalling interrupt path to execute clear on the top half, so on dGPU case processing of stalling interrupts does not block non-stalling one. (*) Use a worker thread to do semaphore wakeups and allow batching of the non-stalling operations. (*) Fix a bug where some gpus will not properly track the completion of interrupts, preventing safe driver unloads Change-Id: Icc90a3acba544c97ec6a9285ab235d337ab9eefa Signed-off-by: David Nieto Reviewed-on: http://git-master/r/1312796 Reviewed-by: svccoveritychecker GVS: Gerrit_Virtual_Submit Reviewed-by: Lakshmanan M Reviewed-by: Terje Bergstrom Reviewed-by: Navneet Kumar --- drivers/gpu/nvgpu/gk20a/mc_gk20a.h | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'drivers/gpu/nvgpu/gk20a/mc_gk20a.h') diff --git a/drivers/gpu/nvgpu/gk20a/mc_gk20a.h b/drivers/gpu/nvgpu/gk20a/mc_gk20a.h index 4bb3e118..1aad1a0b 100644 --- a/drivers/gpu/nvgpu/gk20a/mc_gk20a.h +++ b/drivers/gpu/nvgpu/gk20a/mc_gk20a.h @@ -1,5 +1,5 @@ /* - * Copyright (c) 2014, NVIDIA CORPORATION. All rights reserved. + * Copyright (c) 2014-2017, 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, @@ -22,5 +22,6 @@ void mc_gk20a_intr_unit_config(struct gk20a *g, bool enable, irqreturn_t mc_gk20a_isr_stall(struct gk20a *g); irqreturn_t mc_gk20a_isr_nonstall(struct gk20a *g); irqreturn_t mc_gk20a_intr_thread_stall(struct gk20a *g); -irqreturn_t mc_gk20a_intr_thread_nonstall(struct gk20a *g); +void mc_gk20a_intr_thread_nonstall(struct gk20a *g, u32 intr); +void mc_gk20a_nonstall_cb(struct work_struct *work); #endif -- cgit v1.2.2