mirror of
git://nv-tegra.nvidia.com/linux-nvgpu.git
synced 2025-12-23 18:16:01 +03:00
9f948ed07f
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
/*
|
|
* nvgpu os fence syncpts
|
|
*
|
|
* Copyright (c) 2018, 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"),
|
|
* to deal in the Software without restriction, including without limitation
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
|
* Software is furnished to do so, subject to the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice shall be included in
|
|
* all copies or substantial portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
|
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
|
|
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
|
|
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
|
|
* DEALINGS IN THE SOFTWARE.
|
|
*/
|
|
|
|
#ifndef NVGPU_OS_FENCE_SYNCPT_H
|
|
#define NVGPU_OS_FENCE_SYNCPT_H
|
|
|
|
struct nvgpu_os_fence;
|
|
|
|
struct nvgpu_os_fence_syncpt {
|
|
struct nvgpu_os_fence *fence;
|
|
};
|
|
|
|
#if defined(CONFIG_TEGRA_GK20A_NVHOST) && defined(CONFIG_SYNC)
|
|
/*
|
|
* Return a struct of nvgpu_os_fence_syncpt only if the underlying os_fence
|
|
* object is backed by syncpoints, else return empty object.
|
|
*/
|
|
int nvgpu_os_fence_get_syncpts(struct nvgpu_os_fence_syncpt *fence_syncpt_out,
|
|
struct nvgpu_os_fence *fence_in);
|
|
|
|
/*
|
|
* This method returns the nth syncpt id and syncpt threshold as *syncpt_id
|
|
* and *syncpt_threshold respectively and should be called on a valid
|
|
* instance of type nvgpu_os_fence_syncpt.
|
|
*/
|
|
void nvgpu_os_fence_syncpt_extract_nth_syncpt(
|
|
struct nvgpu_os_fence_syncpt *fence, u32 n,
|
|
u32 *syncpt_id, u32 *syncpt_threshold);
|
|
|
|
|
|
/*
|
|
* This method returns the number of underlying syncpoints
|
|
* and should be called only on a valid instance of type
|
|
* nvgpu_os_fence_syncpt.
|
|
*/
|
|
u32 nvgpu_os_fence_syncpt_get_num_syncpoints(
|
|
struct nvgpu_os_fence_syncpt *fence);
|
|
|
|
#else
|
|
|
|
static inline int nvgpu_os_fence_get_syncpts(
|
|
struct nvgpu_os_fence_syncpt *fence_syncpt_out,
|
|
struct nvgpu_os_fence *fence_in)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
static inline void nvgpu_os_fence_syncpt_extract_nth_syncpt(
|
|
struct nvgpu_os_fence_syncpt *fence, u32 n,
|
|
u32 *syncpt_id, u32 *syncpt_threshold)
|
|
{
|
|
}
|
|
|
|
static inline u32 nvgpu_os_fence_syncpt_get_num_syncpoints(
|
|
struct nvgpu_os_fence_syncpt *fence)
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
#endif
|
|
|
|
#endif /* NVGPU_OS_FENCE_SYNPT_H */ |