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0f04d6c204
1. This change enable HR Timer Syncpoint polling and disable the thread based fence polling. 2. Default timer interval is 200usec. The timer value is taken from DT. If the timer interval in DT is less then 50usec, default timer interval is taken. Jira HOSTX-5527 Change-Id: I6644f1362f28a8901e4e384f1290be9807c30036 Signed-off-by: amitabhd <amitabhd@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3268636 GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com> Reviewed-by: Raghavendra Vishnu Kumar <rvk@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Reviewed-by: Santosh BS <santoshb@nvidia.com>
70 lines
1.7 KiB
C
70 lines
1.7 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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// SPDX-FileCopyrightText: Copyright (c) 2024-2025 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
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#ifndef __HOST1X_EMU_POLL_H
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#define __HOST1X_EMU_POLL_H
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#include <linux/types.h>
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#include <linux/kernel.h>
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#include <linux/timekeeping.h>
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#ifdef HOST1X_EMU_HRTIMER_FENCE_SCAN
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#define HRTIMER_TIMEOUT_NSEC 200000U /*200usec*/
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#define HRTIMER_TIMEOUT_SEC 0U /*0sec*/
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#endif /*HOST1X_EMU_HRTIMER_FENCE_SCAN*/
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struct host1x;
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struct host1x_syncpt;
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struct host1x_syncpt_fence;
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struct host1x_fence_list {
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spinlock_t lock;
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struct list_head list;
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};
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struct host1x_syncpt_list {
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spinlock_t lock;
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struct list_head list;
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};
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/**
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* Description: Initialize host1x syncpoint and pool for polling
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*
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*/
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int host1x_poll_init(struct host1x *host);
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/**
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* Description: Deinitialize host1x syncpoint and pool for polling
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*/
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void host1x_poll_deinit(struct host1x *host);
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/**
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* Description: Enable host1x syncpoint pool polling
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*/
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void host1x_poll_start(struct host1x *host);
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/**
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* Description: Disable host1x syncpoint pool polling
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*/
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void host1x_poll_stop(struct host1x *host);
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/**
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* Description: Polling Thread Handler
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*/
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void host1x_poll_handle_timeout(struct host1x *host, unsigned int id, ktime_t ts);
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/**
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* Description: Add fence to syncpoint object fence-list
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*/
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void host1x_poll_add_fence_locked(struct host1x *host, struct host1x_syncpt_fence *fence);
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/**
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* Description: Remove fence from syncpoint object fence-list
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*/
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bool host1x_poll_remove_fence(struct host1x *host, struct host1x_syncpt_fence *fence);
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/**
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* Description: Check if syncpoint fence expired
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*/
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void host1x_poll_irq_check_syncpt_fence(struct host1x_syncpt *sp);
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#endif
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