4 files changed, 8 insertions, 33 deletions

diff --git a/arch/arc/mm/cache.c b/arch/arc/mm/cache.c
index 9106ceac323c..7d2f93dc1e91 100644
--- a/arch/arc/mm/cache.c
+++ b/arch/arc/mm/cache.c
@@ -704,7 +704,7 @@ static inline void arc_slc_enable(void)
 
 void flush_dcache_folio(struct folio *folio)
 {
-	clear_bit(PG_dc_clean, &folio->flags);
+	clear_bit(PG_dc_clean, &folio->flags.f);
 	return;
 }
 EXPORT_SYMBOL(flush_dcache_folio);
@@ -889,8 +889,8 @@ void copy_user_highpage(struct page *to, struct page *from,
 
 	copy_page(kto, kfrom);
 
-	clear_bit(PG_dc_clean, &dst->flags);
-	clear_bit(PG_dc_clean, &src->flags);
+	clear_bit(PG_dc_clean, &dst->flags.f);
+	clear_bit(PG_dc_clean, &src->flags.f);
 
 	kunmap_atomic(kto);
 	kunmap_atomic(kfrom);
@@ -900,7 +900,7 @@ void clear_user_page(void *to, unsigned long u_vaddr, struct page *page)
 {
 	struct folio *folio = page_folio(page);
 	clear_page(to);
-	clear_bit(PG_dc_clean, &folio->flags);
+	clear_bit(PG_dc_clean, &folio->flags.f);
 }
 EXPORT_SYMBOL(clear_user_page);
 
diff --git a/arch/arc/mm/init.c b/arch/arc/mm/init.c
index 6a71b23f1383..a73cc94f806e 100644
--- a/arch/arc/mm/init.c
+++ b/arch/arc/mm/init.c
@@ -150,41 +150,18 @@ void __init setup_arch_memory(void)
 	 */
 	max_zone_pfn[ZONE_HIGHMEM] = max_high_pfn;
 
-	high_memory = (void *)(min_high_pfn << PAGE_SHIFT);
-
 	arch_pfn_offset = min(min_low_pfn, min_high_pfn);
 	kmap_init();
-
-#else /* CONFIG_HIGHMEM */
-	/* pfn_valid() uses this when FLATMEM=y and HIGHMEM=n */
-	max_mapnr = max_low_pfn - min_low_pfn;
-
 #endif /* CONFIG_HIGHMEM */
 
 	free_area_init(max_zone_pfn);
 }
 
-static void __init highmem_init(void)
+void __init arch_mm_preinit(void)
 {
 #ifdef CONFIG_HIGHMEM
-	unsigned long tmp;
-
 	memblock_phys_free(high_mem_start, high_mem_sz);
-	for (tmp = min_high_pfn; tmp < max_high_pfn; tmp++)
-		free_highmem_page(pfn_to_page(tmp));
 #endif
-}
-
-/*
- * mem_init - initializes memory
- *
- * Frees up bootmem
- * Calculates and displays memory available/used
- */
-void __init mem_init(void)
-{
-	memblock_free_all();
-	highmem_init();
 
 	BUILD_BUG_ON((PTRS_PER_PGD * sizeof(pgd_t)) > PAGE_SIZE);
 	BUILD_BUG_ON((PTRS_PER_PUD * sizeof(pud_t)) > PAGE_SIZE);
diff --git a/arch/arc/mm/ioremap.c b/arch/arc/mm/ioremap.c
index b07004d53267..fd8897a0e52c 100644
--- a/arch/arc/mm/ioremap.c
+++ b/arch/arc/mm/ioremap.c
@@ -32,7 +32,7 @@ void __iomem *ioremap(phys_addr_t paddr, unsigned long size)
 		return (void __iomem *)(u32)paddr;
 
 	return ioremap_prot(paddr, size,
-			    pgprot_val(pgprot_noncached(PAGE_KERNEL)));
+			    pgprot_noncached(PAGE_KERNEL));
 }
 EXPORT_SYMBOL(ioremap);
 
@@ -44,10 +44,8 @@ EXPORT_SYMBOL(ioremap);
  * might need finer access control (R/W/X)
  */
 void __iomem *ioremap_prot(phys_addr_t paddr, size_t size,
-			   unsigned long flags)
+			   pgprot_t prot)
 {
-	pgprot_t prot = __pgprot(flags);
-
 	/* force uncached */
 	return generic_ioremap_prot(paddr, size, pgprot_noncached(prot));
 }
diff --git a/arch/arc/mm/tlb.c b/arch/arc/mm/tlb.c
index cae4a7aae0ed..ed6915ba76ec 100644
--- a/arch/arc/mm/tlb.c
+++ b/arch/arc/mm/tlb.c
@@ -488,7 +488,7 @@ void update_mmu_cache_range(struct vm_fault *vmf, struct vm_area_struct *vma,
 	 */
 	if (vma->vm_flags & VM_EXEC) {
 		struct folio *folio = page_folio(page);
-		int dirty = !test_and_set_bit(PG_dc_clean, &folio->flags);
+		int dirty = !test_and_set_bit(PG_dc_clean, &folio->flags.f);
 		if (dirty) {
 			unsigned long offset = offset_in_folio(folio, paddr);
 			nr = folio_nr_pages(folio);