powerpc/mm: Move book3s64 specifics in subdirectory mm/book3s64

Many files in arch/powerpc/mm are only for book3S64. This patch
creates a subdirectory for them.

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
[mpe: Update the selftest sym links, shorten new filenames, cleanup some
      whitespace and formatting in the new files.]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

1 files changed, 0 insertions, 110 deletions

diff --git a/arch/powerpc/mm/hugetlbpage-radix.c b/arch/powerpc/mm/hugetlbpage-radix.c
deleted file mode 100644
index cab06331c0c0..000000000000
--- a/arch/powerpc/mm/hugetlbpage-radix.c
+++ /dev/null
@@ -1,110 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-#include <linux/mm.h>
-#include <linux/hugetlb.h>
-#include <linux/security.h>
-#include <asm/pgtable.h>
-#include <asm/pgalloc.h>
-#include <asm/cacheflush.h>
-#include <asm/machdep.h>
-#include <asm/mman.h>
-#include <asm/tlb.h>
-
-void radix__flush_hugetlb_page(struct vm_area_struct *vma, unsigned long vmaddr)
-{
-	int psize;
-	struct hstate *hstate = hstate_file(vma->vm_file);
-
-	psize = hstate_get_psize(hstate);
-	radix__flush_tlb_page_psize(vma->vm_mm, vmaddr, psize);
-}
-
-void radix__local_flush_hugetlb_page(struct vm_area_struct *vma, unsigned long vmaddr)
-{
-	int psize;
-	struct hstate *hstate = hstate_file(vma->vm_file);
-
-	psize = hstate_get_psize(hstate);
-	radix__local_flush_tlb_page_psize(vma->vm_mm, vmaddr, psize);
-}
-
-void radix__flush_hugetlb_tlb_range(struct vm_area_struct *vma, unsigned long start,
-				   unsigned long end)
-{
-	int psize;
-	struct hstate *hstate = hstate_file(vma->vm_file);
-
-	psize = hstate_get_psize(hstate);
-	radix__flush_tlb_range_psize(vma->vm_mm, start, end, psize);
-}
-
-/*
- * A vairant of hugetlb_get_unmapped_area doing topdown search
- * FIXME!! should we do as x86 does or non hugetlb area does ?
- * ie, use topdown or not based on mmap_is_legacy check ?
- */
-unsigned long
-radix__hugetlb_get_unmapped_area(struct file *file, unsigned long addr,
-				unsigned long len, unsigned long pgoff,
-				unsigned long flags)
-{
-	struct mm_struct *mm = current->mm;
-	struct vm_area_struct *vma;
-	struct hstate *h = hstate_file(file);
-	int fixed = (flags & MAP_FIXED);
-	unsigned long high_limit;
-	struct vm_unmapped_area_info info;
-
-	high_limit = DEFAULT_MAP_WINDOW;
-	if (addr >= high_limit || (fixed && (addr + len > high_limit)))
-		high_limit = TASK_SIZE;
-
-	if (len & ~huge_page_mask(h))
-		return -EINVAL;
-	if (len > high_limit)
-		return -ENOMEM;
-
-	if (fixed) {
-		if (addr > high_limit - len)
-			return -ENOMEM;
-		if (prepare_hugepage_range(file, addr, len))
-			return -EINVAL;
-		return addr;
-	}
-
-	if (addr) {
-		addr = ALIGN(addr, huge_page_size(h));
-		vma = find_vma(mm, addr);
-		if (high_limit - len >= addr && addr >= mmap_min_addr &&
-		    (!vma || addr + len <= vm_start_gap(vma)))
-			return addr;
-	}
-	/*
-	 * We are always doing an topdown search here. Slice code
-	 * does that too.
-	 */
-	info.flags = VM_UNMAPPED_AREA_TOPDOWN;
-	info.length = len;
-	info.low_limit = max(PAGE_SIZE, mmap_min_addr);
-	info.high_limit = mm->mmap_base + (high_limit - DEFAULT_MAP_WINDOW);
-	info.align_mask = PAGE_MASK & ~huge_page_mask(h);
-	info.align_offset = 0;
-
-	return vm_unmapped_area(&info);
-}
-
-void radix__huge_ptep_modify_prot_commit(struct vm_area_struct *vma,
-					 unsigned long addr, pte_t *ptep,
-					 pte_t old_pte, pte_t pte)
-{
-	struct mm_struct *mm = vma->vm_mm;
-
-	/*
-	 * To avoid NMMU hang while relaxing access we need to flush the tlb before
-	 * we set the new value.
-	 */
-	if (is_pte_rw_upgrade(pte_val(old_pte), pte_val(pte)) &&
-	    (atomic_read(&mm->context.copros) > 0))
-		radix__flush_hugetlb_page(vma, addr);
-
-	set_huge_pte_at(vma->vm_mm, addr, ptep, pte);
-}