3 Commits

Author	SHA1	Message	Date
Aneesh Kumar K.V	177ba7c647	powerpc/mm/radix: Limit paca allocation in radix ... On return from RTAS we access the paca variables and we have 64 bit disabled. This requires us to limit paca in 32 bit range. Fix this by setting ppc64_rma_size to first_memblock_size/1G range. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>	2016-05-11 21:53:47 +10:00
Aneesh Kumar K.V	d9225ad923	powerpc/mm/radix: Add radix callbacks for vmemmap and map_kernel page() ... Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>	2016-05-01 18:33:03 +10:00
Aneesh Kumar K.V	2bfd65e45e	powerpc/mm/radix: Add radix callbacks for early init routines ... This adds routines for early setup for radix. We use device tree property "ibm,processor-radix-AP-encodings" to find supported page sizes. If we don't find the above we consider 64K and 4K as supported page sizes. We do map vmemap using 2M page size if we can. The linear mapping is done such that we use required page size for that range. For example memory of 3.5G is mapped such that we use 1G mapping till 3G range and use 2M mapping for the rest. Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>	2016-05-01 18:33:00 +10:00