arch: remove m32r port

The Mitsubishi/Renesas m32r architecture has been around for many years,
but the Linux port has been obsolete for a very long time as well, with
the last significant updates done for linux-2.6.14.

While some m32r microcontrollers are still being marketed by Renesas,
those are apparently no longer possible to support, mainly due to the
lack of an external memory interface.

Hirokazu Takata was the maintainer until the architecture got marked
Orphaned in 2014.

Link: http://www.linux-m32r.org/
Link: https://www.renesas.com/en-eu/products/microcontrollers-microprocessors/m32r.html
Cc: Hirokazu Takata <takata@linux-m32r.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 0 insertions, 82 deletions

diff --git a/arch/m32r/include/asm/pgalloc.h b/arch/m32r/include/asm/pgalloc.h
deleted file mode 100644
index eed2cad57d68..000000000000
--- a/arch/m32r/include/asm/pgalloc.h
+++ /dev/null
@@ -1,82 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_M32R_PGALLOC_H
-#define _ASM_M32R_PGALLOC_H
-
-#include <linux/mm.h>
-
-#include <asm/io.h>
-
-#define pmd_populate_kernel(mm, pmd, pte)	\
-	set_pmd(pmd, __pmd(_PAGE_TABLE + __pa(pte)))
-
-static __inline__ void pmd_populate(struct mm_struct *mm, pmd_t *pmd,
-	pgtable_t pte)
-{
-	set_pmd(pmd, __pmd(_PAGE_TABLE + page_to_phys(pte)));
-}
-#define pmd_pgtable(pmd) pmd_page(pmd)
-
-/*
- * Allocate and free page tables.
- */
-static __inline__ pgd_t *pgd_alloc(struct mm_struct *mm)
-{
-	pgd_t *pgd = (pgd_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
-
-	return pgd;
-}
-
-static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd)
-{
-	free_page((unsigned long)pgd);
-}
-
-static __inline__ pte_t *pte_alloc_one_kernel(struct mm_struct *mm,
-	unsigned long address)
-{
-	pte_t *pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO);
-
-	return pte;
-}
-
-static __inline__ pgtable_t pte_alloc_one(struct mm_struct *mm,
-	unsigned long address)
-{
-	struct page *pte = alloc_page(GFP_KERNEL|__GFP_ZERO);
-
-	if (!pte)
-		return NULL;
-	if (!pgtable_page_ctor(pte)) {
-		__free_page(pte);
-		return NULL;
-	}
-	return pte;
-}
-
-static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte)
-{
-	free_page((unsigned long)pte);
-}
-
-static inline void pte_free(struct mm_struct *mm, pgtable_t pte)
-{
-	pgtable_page_dtor(pte);
-	__free_page(pte);
-}
-
-#define __pte_free_tlb(tlb, pte, addr)	pte_free((tlb)->mm, (pte))
-
-/*
- * allocating and freeing a pmd is trivial: the 1-entry pmd is
- * inside the pgd, so has no extra memory associated with it.
- * (In the PAE case we free the pmds as part of the pgd.)
- */
-
-#define pmd_alloc_one(mm, addr)		({ BUG(); ((pmd_t *)2); })
-#define pmd_free(mm, x)			do { } while (0)
-#define __pmd_free_tlb(tlb, x, addr)	do { } while (0)
-#define pgd_populate(mm, pmd, pte)	BUG()
-
-#define check_pgt_cache()	do { } while (0)
-
-#endif /* _ASM_M32R_PGALLOC_H */