Kernel version beyond 5.10 introduces dma_buf_map structure (called
iosys_map in later versions). Kernel virtual address corresponding to a
dma_buf is stored in the dma_buf_map structure.
- This patch updates memory management function to use correct mem bytes
buffer kernel virtual address stored in the corresponding dma_buf_map
structure.
- Use dma_buf_map structure pointer to unmap kernel virtual address.
- During release, poll mem bytes buffer with finite timeout value.
- Add description for use of dma_set_mask_and_coherent.
Bug 3893741
Change-Id: I42ace2fe70b36d7d5d1a4c5fee21786826f24a07
Signed-off-by: Vedashree Vidwans <vvidwans@nvidia.com>
(cherry picked from commit ce852be6b39ef39affccdee41ad436fc70bf86b5)
Reviewed-on: https://git-master.nvidia.com/r/c/linux-hwpm/+/2847007
Reviewed-by: Seema Khowala <seemaj@nvidia.com>
GVS: Gerrit_Virtual_Submit <buildbot_gerritrpt@nvidia.com>
HWPM files are copied from the previous source in linux-nvidia repo
withgit history. Create folders and move files to obtain expected folder
structure.
Bug 3787076
Signed-off-by: Vedashree Vidwans <vvidwans@nvidia.com>
