In __gk20a_alloc_pages(), if we fail to allocate a chunk
we free previously allocated chunks in error path
But we do not free up the memory reserved in those chunks
which could lead to OOM situations
Fix this by calling gk20a_free() for each chunk in error
path
Jira DNVGPU-96
Change-Id: I68aa18d68a5282405016e688c790ccbc0c2a0d69
Signed-off-by: Deepak Nibade <dnibade@nvidia.com>
Reviewed-on: http://git-master/r/1203098
(cherry picked from commit f096bd1675600f4e2fc2d686f2911bb945fbbf0b)
Reviewed-on: http://git-master/r/1210952
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
Implement an allocator suitable for managing the video memory on dGPUs.
It works by allocating chunks from an underlying buddy allocator and
collating the chunks together (similar to what an sgt does in the
wider Linux kernel). This handles the ability to get large buffers in
potentially fragmented memory. The GMMU can then obviously map the
physical vidmem into contiguous GVA spaces.
Jira DNVGPU-96
Change-Id: Ic1d7800b033a170b77790aa23fad6858443d0e89
Signed-off-by: Alex Waterman <alexw@nvidia.com>
Reviewed-on: http://git-master/r/1197203
(cherry picked from commit fa44684a843956ae384fef6d7a79b9cbbd04f73e)
Reviewed-on: http://git-master/r/1185231
GVS: Gerrit_Virtual_Submit
Reviewed-by: Terje Bergstrom <tbergstrom@nvidia.com>
