Replace nvgpu locks to vanilla Linux locks. For the custom kernel
driver when they include nv-p2p.h, nvgpu/linux/lock.h will not be
available because nvgpu/linux/lock.h is not copied to
/usr/src/kernel_header_file.
Bug 200438879
Change-Id: I55b52c6f791970650388b7d51c4d30b5fe75bbb8
Signed-off-by: Preetham Chandru Ramchandra <pchandru@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1997950
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: Alex Waterman <alexw@nvidia.com>
GVS: Gerrit_Virtual_Submit
Reviewed-by: Bibek Basu <bbasu@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This change adds RDMA supports for tegra iGPU.
1. Cuda Process allocates the memory and passes
the VA and size to the custom kernel driver.
2. The custom kernel driver maps the user allocated
buf and does the DMA to/from it.
3. Only supports iGPU + cudaHostAlloc sysmem
4. Works only for a given process.
5. Address should be sysmem page aligned and size should
be multiple of sysmem page size.
6. The custom kernel driver must register a free_callback when get_page()
function is called.
Bug 200438879
Signed-off-by: Preetham Chandru R <pchandru@nvidia.com>
Change-Id: I43ec45734eb46d30341d0701550206c16e051106
Reviewed-on: https://git-master.nvidia.com/r/1953780
(cherry picked from commit d6278955f6)
Reviewed-on: https://git-master.nvidia.com/r/1821407
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
