Nicholas Piggin d909f9109c powerpc/64s/radix: Enable HAVE_ARCH_HUGE_VMAP ... This sets the HAVE_ARCH_HUGE_VMAP option, and defines the required page table functions. This enables huge (2MB and 1GB) ioremap mappings. I don't have a benchmark for this change, but huge vmap will be used by a later core kernel change to enable huge vmalloc memory mappings. This improves cached `git diff` performance by about 5% on a 2-node POWER9 with 32MB size dentry cache hash. Profiling git diff dTLB misses with a vanilla kernel: 81.75% git [kernel.vmlinux] [k] __d_lookup_rcu 7.21% git [kernel.vmlinux] [k] strncpy_from_user 1.77% git [kernel.vmlinux] [k] find_get_entry 1.59% git [kernel.vmlinux] [k] kmem_cache_free 40,168 dTLB-miss 0.100342754 seconds time elapsed With powerpc huge vmalloc: 2,987 dTLB-miss 0.095933138 seconds time elapsed Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>		2019-06-19 20:05:09 +10:00
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asm	powerpc/64s/radix: Enable HAVE_ARCH_HUGE_VMAP	2019-06-19 20:05:09 +10:00
uapi/asm	KVM: PPC: Book3S HV: XIVE: Add a mapping for the source ESB pages	2019-04-30 19:35:16 +10:00