tree d3becd54177e96aac79af9181c45ef43d52f1708
parent 8af9eb94312f47c02f2a040ce49473b3136938c6
author Daniel Mentz <danielmentz@google.com> 1481680486 -0800
committer Daniel Mentz <danielmentz@google.com> 1484074438 -0800

Virtual memory map to accomodate 64 MB SPI flash

We use a 64 MB SPI NOR flash on Prowl which the SPI flash driver
ioremaps() *twice* into the vmalloc area. As a result, we needed to
increase the size of the vmalloc area from 64MB to 256MB. The existing
virtual memory layout did not accommodate this change. We had to tweak
it a little. Note that TASK_UNMAPPED_BASE needs to be a multiple of
PAGE_SIZE.