8 files changed, 72 insertions, 72 deletions

diff --git a/arch/mips/mm/init.c b/arch/mips/mm/init.c
index 4583d1a2a73e..a673d3d68254 100644
--- a/arch/mips/mm/init.c
+++ b/arch/mips/mm/init.c
@@ -59,24 +59,16 @@ EXPORT_SYMBOL(zero_page_mask);
 /*
  * Not static inline because used by IP27 special magic initialization code
  */
-void setup_zero_pages(void)
+static void __init setup_zero_pages(void)
 {
-	unsigned int order, i;
-	struct page *page;
+	unsigned int order;
 
 	if (cpu_has_vce)
 		order = 3;
 	else
 		order = 0;
 
-	empty_zero_page = __get_free_pages(GFP_KERNEL | __GFP_ZERO, order);
-	if (!empty_zero_page)
-		panic("Oh boy, that early out of memory?");
-
-	page = virt_to_page((void *)empty_zero_page);
-	split_page(page, order);
-	for (i = 0; i < (1 << order); i++, page++)
-		mark_page_reserved(page);
+	empty_zero_page = (unsigned long)memblock_alloc_or_panic(PAGE_SIZE << order, PAGE_SIZE);
 
 	zero_page_mask = ((PAGE_SIZE << order) - 1) & PAGE_MASK;
 }
@@ -423,17 +415,8 @@ void __init paging_init(void)
 		       " %ldk highmem ignored\n",
 		       (highend_pfn - max_low_pfn) << (PAGE_SHIFT - 10));
 		max_zone_pfns[ZONE_HIGHMEM] = max_low_pfn;
-
-		max_mapnr = max_low_pfn;
-	} else if (highend_pfn) {
-		max_mapnr = highend_pfn;
-	} else {
-		max_mapnr = max_low_pfn;
 	}
-#else
-	max_mapnr = max_low_pfn;
 #endif
-	high_memory = (void *) __va(max_low_pfn << PAGE_SHIFT);
 
 	free_area_init(max_zone_pfns);
 }
@@ -442,26 +425,7 @@ void __init paging_init(void)
 static struct kcore_list kcore_kseg0;
 #endif
 
-static inline void __init mem_init_free_highmem(void)
-{
-#ifdef CONFIG_HIGHMEM
-	unsigned long tmp;
-
-	if (cpu_has_dc_aliases)
-		return;
-
-	for (tmp = highstart_pfn; tmp < highend_pfn; tmp++) {
-		struct page *page = pfn_to_page(tmp);
-
-		if (!memblock_is_memory(PFN_PHYS(tmp)))
-			SetPageReserved(page);
-		else
-			free_highmem_page(page);
-	}
-#endif
-}
-
-void __init mem_init(void)
+void __init arch_mm_preinit(void)
 {
 	/*
 	 * When PFN_PTE_SHIFT is greater than PAGE_SHIFT we won't have enough PTE
@@ -470,9 +434,7 @@ void __init mem_init(void)
 	BUILD_BUG_ON(IS_ENABLED(CONFIG_32BIT) && (PFN_PTE_SHIFT > PAGE_SHIFT));
 
 	maar_init();
-	memblock_free_all();
 	setup_zero_pages();	/* Setup zeroed pages.  */
-	mem_init_free_highmem();
 
 #ifdef CONFIG_64BIT
 	if ((unsigned long) &_text > (unsigned long) CKSEG0)
@@ -482,6 +444,11 @@ void __init mem_init(void)
 				0x80000000 - 4, KCORE_TEXT);
 #endif
 }
+#else  /* CONFIG_NUMA */
+void __init arch_mm_preinit(void)
+{
+	setup_zero_pages();	/* This comes from node 0 */
+}
 #endif /* !CONFIG_NUMA */
 
 void free_init_pages(const char *what, unsigned long begin, unsigned long end)
diff --git a/arch/mips/mm/ioremap.c b/arch/mips/mm/ioremap.c
index d8243d61ef32..c6c4576cd4a8 100644
--- a/arch/mips/mm/ioremap.c
+++ b/arch/mips/mm/ioremap.c
@@ -44,9 +44,9 @@ static int __ioremap_check_ram(unsigned long start_pfn, unsigned long nr_pages,
  * ioremap_prot gives the caller control over cache coherency attributes (CCA)
  */
 void __iomem *ioremap_prot(phys_addr_t phys_addr, unsigned long size,
-		unsigned long prot_val)
+			   pgprot_t prot)
 {
-	unsigned long flags = prot_val & _CACHE_MASK;
+	unsigned long flags = pgprot_val(prot) & _CACHE_MASK;
 	unsigned long offset, pfn, last_pfn;
 	struct vm_struct *area;
 	phys_addr_t last_addr;
diff --git a/arch/mips/mm/ioremap64.c b/arch/mips/mm/ioremap64.c
index 15e7820d6a5f..acc03ba20098 100644
--- a/arch/mips/mm/ioremap64.c
+++ b/arch/mips/mm/ioremap64.c
@@ -3,9 +3,9 @@
 #include <ioremap.h>
 
 void __iomem *ioremap_prot(phys_addr_t offset, unsigned long size,
-		unsigned long prot_val)
+			   pgprot_t prot)
 {
-	unsigned long flags = prot_val & _CACHE_MASK;
+	unsigned long flags = pgprot_val(prot) & _CACHE_MASK;
 	u64 base = (flags == _CACHE_UNCACHED ? IO_BASE : UNCAC_BASE);
 	void __iomem *addr;
 
diff --git a/arch/mips/mm/pgtable-32.c b/arch/mips/mm/pgtable-32.c
index 84dd5136d53a..e2cf2166d5cb 100644
--- a/arch/mips/mm/pgtable-32.c
+++ b/arch/mips/mm/pgtable-32.c
@@ -31,16 +31,6 @@ void pgd_init(void *addr)
 }
 
 #if defined(CONFIG_TRANSPARENT_HUGEPAGE)
-pmd_t mk_pmd(struct page *page, pgprot_t prot)
-{
-	pmd_t pmd;
-
-	pmd_val(pmd) = (page_to_pfn(page) << PFN_PTE_SHIFT) | pgprot_val(prot);
-
-	return pmd;
-}
-
-
 void set_pmd_at(struct mm_struct *mm, unsigned long addr,
 		pmd_t *pmdp, pmd_t pmd)
 {
diff --git a/arch/mips/mm/pgtable-64.c b/arch/mips/mm/pgtable-64.c
index 1e544827dea9..b24f865de357 100644
--- a/arch/mips/mm/pgtable-64.c
+++ b/arch/mips/mm/pgtable-64.c
@@ -90,15 +90,6 @@ void pud_init(void *addr)
 #endif
 
 #ifdef CONFIG_TRANSPARENT_HUGEPAGE
-pmd_t mk_pmd(struct page *page, pgprot_t prot)
-{
-	pmd_t pmd;
-
-	pmd_val(pmd) = (page_to_pfn(page) << PFN_PTE_SHIFT) | pgprot_val(prot);
-
-	return pmd;
-}
-
 void set_pmd_at(struct mm_struct *mm, unsigned long addr,
 		pmd_t *pmdp, pmd_t pmd)
 {
diff --git a/arch/mips/mm/pgtable.c b/arch/mips/mm/pgtable.c
index 1506e458040d..10835414819f 100644
--- a/arch/mips/mm/pgtable.c
+++ b/arch/mips/mm/pgtable.c
@@ -10,12 +10,10 @@
 
 pgd_t *pgd_alloc(struct mm_struct *mm)
 {
-	pgd_t *init, *ret = NULL;
-	struct ptdesc *ptdesc = pagetable_alloc(GFP_KERNEL & ~__GFP_HIGHMEM,
-			PGD_TABLE_ORDER);
+	pgd_t *init, *ret;
 
-	if (ptdesc) {
-		ret = ptdesc_address(ptdesc);
+	ret = __pgd_alloc(mm, PGD_TABLE_ORDER);
+	if (ret) {
 		init = pgd_offset(&init_mm, 0UL);
 		pgd_init(ret);
 		memcpy(ret + USER_PTRS_PER_PGD, init + USER_PTRS_PER_PGD,
diff --git a/arch/mips/mm/physaddr.c b/arch/mips/mm/physaddr.c
index f9b8c85e9843..a6b1bf82057a 100644
--- a/arch/mips/mm/physaddr.c
+++ b/arch/mips/mm/physaddr.c
@@ -30,7 +30,7 @@ static inline bool __debug_virt_addr_valid(unsigned long x)
 phys_addr_t __virt_to_phys(volatile const void *x)
 {
 	WARN(!__debug_virt_addr_valid((unsigned long)x),
-	     "virt_to_phys used for non-linear address: %pK (%pS)\n",
+	     "virt_to_phys used for non-linear address: %p (%pS)\n",
 	     x, x);
 
 	return __virt_to_phys_nodebug(x);
diff --git a/arch/mips/mm/tlb-r4k.c b/arch/mips/mm/tlb-r4k.c
index 76f3b9c0a9f0..347126dc010d 100644
--- a/arch/mips/mm/tlb-r4k.c
+++ b/arch/mips/mm/tlb-r4k.c
@@ -508,6 +508,60 @@ static int __init set_ntlb(char *str)
 
 __setup("ntlb=", set_ntlb);
 
+/* Initialise all TLB entries with unique values */
+static void r4k_tlb_uniquify(void)
+{
+	int entry = num_wired_entries();
+
+	htw_stop();
+	write_c0_entrylo0(0);
+	write_c0_entrylo1(0);
+
+	while (entry < current_cpu_data.tlbsize) {
+		unsigned long asid_mask = cpu_asid_mask(&current_cpu_data);
+		unsigned long asid = 0;
+		int idx;
+
+		/* Skip wired MMID to make ginvt_mmid work */
+		if (cpu_has_mmid)
+			asid = MMID_KERNEL_WIRED + 1;
+
+		/* Check for match before using UNIQUE_ENTRYHI */
+		do {
+			if (cpu_has_mmid) {
+				write_c0_memorymapid(asid);
+				write_c0_entryhi(UNIQUE_ENTRYHI(entry));
+			} else {
+				write_c0_entryhi(UNIQUE_ENTRYHI(entry) | asid);
+			}
+			mtc0_tlbw_hazard();
+			tlb_probe();
+			tlb_probe_hazard();
+			idx = read_c0_index();
+			/* No match or match is on current entry */
+			if (idx < 0 || idx == entry)
+				break;
+			/*
+			 * If we hit a match, we need to try again with
+			 * a different ASID.
+			 */
+			asid++;
+		} while (asid < asid_mask);
+
+		if (idx >= 0 && idx != entry)
+			panic("Unable to uniquify TLB entry %d", idx);
+
+		write_c0_index(entry);
+		mtc0_tlbw_hazard();
+		tlb_write_indexed();
+		entry++;
+	}
+
+	tlbw_use_hazard();
+	htw_start();
+	flush_micro_tlb();
+}
+
 /*
  * Configure TLB (for init or after a CPU has been powered off).
  */
@@ -547,7 +601,7 @@ static void r4k_tlb_configure(void)
 	temp_tlb_entry = current_cpu_data.tlbsize - 1;
 
 	/* From this point on the ARC firmware is dead.	 */
-	local_flush_tlb_all();
+	r4k_tlb_uniquify();
 
 	/* Did I tell you that ARC SUCKS?  */
 }