This patch series map all the kernel regions (vmalloc, IO and vmemmap) using 0xc top nibble address. This brings hash translation kernel mapping in sync with radix. Each of these regions can now map 512TB. We use one context to map these regions and hence the 512TB limit. We also update radix to use the same limit even though we don't have context related restrictions there.
Aneesh Kumar K.V (5): powerpc/mm/hash64: Add a variable to track the end of IO mapping powerpc/mm/hash64: Map all the kernel regions in the same 0xc range powerpc/mm: Validate address values against different region limits powerpc/mm: Drop the unnecessary region check powerpc/mm/hash: Simplify the region id calculation. arch/powerpc/include/asm/book3s/64/hash-4k.h | 15 +++ arch/powerpc/include/asm/book3s/64/hash-64k.h | 12 +++ arch/powerpc/include/asm/book3s/64/hash.h | 97 ++++++++++++------- arch/powerpc/include/asm/book3s/64/mmu-hash.h | 31 +++--- arch/powerpc/include/asm/book3s/64/pgtable.h | 9 +- arch/powerpc/include/asm/book3s/64/radix.h | 40 ++++---- arch/powerpc/include/asm/page.h | 11 --- arch/powerpc/kvm/book3s_hv_rm_xics.c | 2 +- arch/powerpc/mm/copro_fault.c | 14 ++- arch/powerpc/mm/hash_utils_64.c | 45 ++++++--- arch/powerpc/mm/pgtable-hash64.c | 13 ++- arch/powerpc/mm/pgtable-radix.c | 20 +++- arch/powerpc/mm/pgtable_64.c | 9 +- arch/powerpc/mm/ptdump/hashpagetable.c | 2 +- arch/powerpc/mm/ptdump/ptdump.c | 3 +- arch/powerpc/mm/slb.c | 22 +++-- arch/powerpc/platforms/cell/spu_base.c | 4 +- drivers/misc/cxl/fault.c | 2 +- drivers/misc/ocxl/link.c | 2 +- 19 files changed, 227 insertions(+), 126 deletions(-) -- 2.20.1
