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channel_sync->wait_fd depends upon nvgpu_os_fence->program_waits which invokes a channel_sync method and this leads to a circular dependency. In order to resolve the above, constructed struct nvgpu_os_fence_sema and struct nvgpu_os_fence_syncpt with interfaces that support conversion between struct nvgpu_os_fence to above. Also, added the following interfaces for retrieving syncpts and semaphore from the above structs respectively. void nvgpu_os_fence_sema_extract_nth_semaphore(...) int nvgpu_os_fence_sema_get_num_semaphores(...) void nvgpu_os_fence_syncpt_extract_nth_syncpt(...) int nvgpu_os_fence_syncpt_get_num_syncpoints(...) These enable channel_sync code to directly program the cmd_bufs based on the syncpts and semaphore received using the above APIs instead of the current state of doing the wait programming from within nvgpu_os_fence's interfaces. Jira NVGPU-1093 Change-Id: Ie411f0ba60bca38f66a0024f5dfca03ef0b836eb Signed-off-by: Debarshi Dutta <ddutta@nvidia.com> Reviewed-on: https://git-master.nvidia.com/r/1827475 Reviewed-by: Konsta Holtta <kholtta@nvidia.com> GVS: Gerrit_Virtual_Submit Reviewed-by: Vijayakumar Subbu <vsubbu@nvidia.com> Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com> Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
83 lines
2.6 KiB
C
83 lines
2.6 KiB
C
/*
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* nvgpu os fence syncpts
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*
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* Copyright (c) 2018, 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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#ifndef NVGPU_OS_FENCE_SYNCPT_H
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#define NVGPU_OS_FENCE_SYNCPT_H
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struct nvgpu_os_fence;
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struct nvgpu_os_fence_syncpt {
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struct nvgpu_os_fence *fence;
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};
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#if defined(CONFIG_TEGRA_GK20A_NVHOST) && defined(CONFIG_SYNC)
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/*
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* Return a struct of nvgpu_os_fence_syncpt only if the underlying os_fence
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* object is backed by syncpoints, else return empty object.
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*/
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int nvgpu_os_fence_get_syncpts(struct nvgpu_os_fence_syncpt *fence_syncpt_out,
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struct nvgpu_os_fence *fence_in);
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/*
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* This method returns the nth syncpt id and syncpt threshold as *syncpt_id
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* and *syncpt_threshold respectively and should be called on a valid
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* instance of type nvgpu_os_fence_syncpt.
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*/
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void nvgpu_os_fence_syncpt_extract_nth_syncpt(
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struct nvgpu_os_fence_syncpt *fence, u32 n,
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u32 *syncpt_id, u32 *syncpt_threshold);
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/*
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* This method returns the number of underlying syncpoints
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* and should be called only on a valid instance of type
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* nvgpu_os_fence_syncpt.
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*/
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u32 nvgpu_os_fence_syncpt_get_num_syncpoints(
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struct nvgpu_os_fence_syncpt *fence);
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#else
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static inline int nvgpu_os_fence_get_syncpts(
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struct nvgpu_os_fence_syncpt *fence_syncpt_out,
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struct nvgpu_os_fence *fence_in)
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{
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return -EINVAL;
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}
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static inline void nvgpu_os_fence_syncpt_extract_nth_syncpt(
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struct nvgpu_os_fence_syncpt *fence, u32 n,
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u32 *syncpt_id, u32 *syncpt_threshold)
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{
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}
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static inline u32 nvgpu_os_fence_syncpt_get_num_syncpoints(
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struct nvgpu_os_fence_syncpt *fence)
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{
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return 0;
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}
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#endif
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#endif /* NVGPU_OS_FENCE_SYNPT_H */ |