1 files changed, 0 insertions, 157 deletions
diff --git a/arch/metag/mm/mmu-meta1.c b/arch/metag/mm/mmu-meta1.c
deleted file mode 100644
index 53190b13dc54..000000000000
--- a/arch/metag/mm/mmu-meta1.c
+++ /dev/null
@@ -1,157 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/*
- *  Copyright (C) 2005,2006,2007,2008,2009 Imagination Technologies
- *
- * Meta 1 MMU handling code.
- *
- */
-
-#include <linux/sched.h>
-#include <linux/mm.h>
-#include <linux/io.h>
-
-#include <asm/mmu.h>
-
-#define DM3_BASE (LINSYSDIRECT_BASE + (MMCU_DIRECTMAPn_ADDR_SCALE * 3))
-
-/*
- * This contains the physical address of the top level 2k pgd table.
- */
-static unsigned long mmu_base_phys;
-
-/*
- * Given a physical address, return a mapped virtual address that can be used
- * to access that location.
- * In practice, we use the DirectMap region to make this happen.
- */
-static unsigned long map_addr(unsigned long phys)
-{
-	static unsigned long dm_base = 0xFFFFFFFF;
-	int offset;
-
-	offset = phys - dm_base;
-
-	/* Are we in the current map range ? */
-	if ((offset < 0) || (offset >= MMCU_DIRECTMAPn_ADDR_SCALE)) {
-		/* Calculate new DM area */
-		dm_base = phys & ~(MMCU_DIRECTMAPn_ADDR_SCALE - 1);
-
-		/* Actually map it in! */
-		metag_out32(dm_base, MMCU_DIRECTMAP3_ADDR);
-
-		/* And calculate how far into that area our reference is */
-		offset = phys - dm_base;
-	}
-
-	return DM3_BASE + offset;
-}
-
-/*
- * Return the physical address of the base of our pgd table.
- */
-static inline unsigned long __get_mmu_base(void)
-{
-	unsigned long base_phys;
-	unsigned int stride;
-
-	if (is_global_space(PAGE_OFFSET))
-		stride = 4;
-	else
-		stride = hard_processor_id();	/* [0..3] */
-
-	base_phys = metag_in32(MMCU_TABLE_PHYS_ADDR);
-	base_phys += (0x800 * stride);
-
-	return base_phys;
-}
-
-/* Given a virtual address, return the virtual address of the relevant pgd */
-static unsigned long pgd_entry_addr(unsigned long virt)
-{
-	unsigned long pgd_phys;
-	unsigned long pgd_virt;
-
-	if (!mmu_base_phys)
-		mmu_base_phys = __get_mmu_base();
-
-	/*
-	 * Are we trying to map a global address.  If so, then index
-	 * the global pgd table instead of our local one.
-	 */
-	if (is_global_space(virt)) {
-		/* Scale into 2gig map */
-		virt &= ~0x80000000;
-	}
-
-	/* Base of the pgd table plus our 4Meg entry, 4bytes each */
-	pgd_phys = mmu_base_phys + ((virt >> PGDIR_SHIFT) * 4);
-
-	pgd_virt = map_addr(pgd_phys);
-
-	return pgd_virt;
-}
-
-/* Given a virtual address, return the virtual address of the relevant pte */
-static unsigned long pgtable_entry_addr(unsigned long virt)
-{
-	unsigned long pgtable_phys;
-	unsigned long pgtable_virt, pte_virt;
-
-	/* Find the physical address of the 4MB page table*/
-	pgtable_phys = metag_in32(pgd_entry_addr(virt)) & MMCU_ENTRY_ADDR_BITS;
-
-	/* Map it to a virtual address */
-	pgtable_virt = map_addr(pgtable_phys);
-
-	/* And index into it for our pte */
-	pte_virt = pgtable_virt + ((virt >> PAGE_SHIFT) & 0x3FF) * 4;
-
-	return pte_virt;
-}
-
-unsigned long mmu_read_first_level_page(unsigned long vaddr)
-{
-	return metag_in32(pgd_entry_addr(vaddr));
-}
-
-unsigned long mmu_read_second_level_page(unsigned long vaddr)
-{
-	return metag_in32(pgtable_entry_addr(vaddr));
-}
-
-unsigned long mmu_get_base(void)
-{
-	static unsigned long __base;
-
-	/* Find the base of our MMU pgd table */
-	if (!__base)
-		__base = pgd_entry_addr(0);
-
-	return __base;
-}
-
-void __init mmu_init(unsigned long mem_end)
-{
-	unsigned long entry, addr;
-	pgd_t *p_swapper_pg_dir;
-
-	/*
-	 * Now copy over any MMU pgd entries already in the mmu page tables
-	 * over to our root init process (swapper_pg_dir) map.  This map is
-	 * then inherited by all other processes, which means all processes
-	 * inherit a map of the kernel space.
-	 */
-	addr = PAGE_OFFSET;
-	entry = pgd_index(PAGE_OFFSET);
-	p_swapper_pg_dir = pgd_offset_k(0) + entry;
-
-	while (addr <= META_MEMORY_LIMIT) {
-		unsigned long pgd_entry;
-		/* copy over the current MMU value */
-		pgd_entry = mmu_read_first_level_page(addr);
-		pgd_val(*p_swapper_pg_dir) = pgd_entry;
-
-		p_swapper_pg_dir++;
-		addr += PGDIR_SIZE;
-	}
-}