On 11/12/09, Johnny Hung johnny.hack...@gmail.com wrote:
Hi All:
I am writing user space application and need to allocate a
continuous memory. The size is just 64KB and I also need to know the
allocated physical memory address. Is is possible to do it in user
space or it should be done it
Thanks for your replied. I surveyed in the internet and found the
kerenl's kmalloc API also return a continuous memory address. Is it
right? So there are two kernel APIs (__get_free_page, kmalloc) return
a _continuous_ memory address (virtual address) and it can be convert
to physical address by
Yes that's right, AFAIK kmap allocates physically contiguous memory
and vmalloc allocates virtual contiguous memory.
Sorry, change kmap to kmalloc.
Regards,
-Joel
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Thanks for your replied. I surveyed in the internet and found the
kerenl's kmalloc API also return a continuous memory address. Is it
right? So there are two kernel APIs (__get_free_page, kmalloc) return
a _continuous_ memory address (virtual address) and it can be convert
to physical address
Hi All:
I am writing user space application and need to allocate a continuous
memory. The size is just 64KB and I also need to know the allocated physical
memory address. Is is possible to do it in user space or it should be done
it kernel space? BTW, how to allocate continuous physical memory
