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9ab1271269
It's preparing to add bellow CFLAGS:
-Werror -Wall -Wextra \
-Wmissing-braces -Wpointer-arith -Wundef \
-Wconversion -Wsign-conversion \
-Wformat-security \
-Wmissing-declarations -Wredundant-decls -Wimplicit-fallthrough
Jira GVSCI-11640
Signed-off-by: Richard Zhao <rizhao@nvidia.com>
Change-Id: Ia8f508c65071aa4775d71b8ee5dbf88a33b5cbd5
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nvgpu/+/2555056
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
91 lines
2.9 KiB
C
91 lines
2.9 KiB
C
/*
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* Copyright (c) 2014-2022, NVIDIA CORPORATION. All rights reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
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* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
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* DEALINGS IN THE SOFTWARE.
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*/
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#include <nvgpu/nvhost.h>
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#include <nvgpu/fence.h>
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#include <nvgpu/fence_syncpt.h>
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#include "fence_priv.h"
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static int nvgpu_fence_syncpt_wait(struct nvgpu_fence_type *f, u32 timeout)
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{
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struct nvgpu_fence_type_priv *pf = &f->priv;
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return nvgpu_nvhost_syncpt_wait_timeout_ext(
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pf->nvhost_device, pf->syncpt_id, pf->syncpt_value,
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timeout, NVGPU_NVHOST_DEFAULT_WAITER);
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}
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static bool nvgpu_fence_syncpt_is_expired(struct nvgpu_fence_type *f)
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{
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struct nvgpu_fence_type_priv *pf = &f->priv;
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/*
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* In cases we don't register a notifier, we can't expect the
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* syncpt value to be updated. For this case, we force a read
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* of the value from HW, and then check for expiration.
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*/
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if (!nvgpu_nvhost_syncpt_is_expired_ext(pf->nvhost_device,
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pf->syncpt_id, pf->syncpt_value)) {
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int err;
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u32 val;
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err = nvgpu_nvhost_syncpt_read_ext_check(pf->nvhost_device,
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pf->syncpt_id, &val);
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WARN(err != 0, "syncpt read failed??");
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if (err == 0) {
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return nvgpu_nvhost_syncpt_is_expired_ext(
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pf->nvhost_device,
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pf->syncpt_id, pf->syncpt_value);
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} else {
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return false;
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}
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}
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return true;
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}
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static void nvgpu_fence_syncpt_release(struct nvgpu_fence_type *f)
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{
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(void)f;
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}
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static const struct nvgpu_fence_ops nvgpu_fence_syncpt_ops = {
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.wait = nvgpu_fence_syncpt_wait,
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.is_expired = nvgpu_fence_syncpt_is_expired,
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.release = nvgpu_fence_syncpt_release,
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};
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/* This function takes the ownership of the os_fence */
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void nvgpu_fence_from_syncpt(
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struct nvgpu_fence_type *f,
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struct nvgpu_nvhost_dev *nvhost_device,
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u32 id, u32 value, struct nvgpu_os_fence os_fence)
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{
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struct nvgpu_fence_type_priv *pf = &f->priv;
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nvgpu_fence_init(f, &nvgpu_fence_syncpt_ops, os_fence);
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pf->nvhost_device = nvhost_device;
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pf->syncpt_id = id;
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pf->syncpt_value = value;
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}
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