Merge branch 'x86/urgent' into x86/pat

Reason: Change to is_new_memtype_allowed() in x86/urgent

Resolved semantic conflicts in:

	 arch/x86/mm/pat.c
	 arch/x86/mm/ioremap.c

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

9 files changed, 60 insertions, 31 deletions

diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c
index 78a5fff857be..bfae139182ff 100644
--- a/arch/x86/mm/fault.c
+++ b/arch/x86/mm/fault.c
@@ -426,10 +426,11 @@ static noinline int vmalloc_fault(unsigned long address)
 }
 
 static const char errata93_warning[] =
-KERN_ERR "******* Your BIOS seems to not contain a fix for K8 errata #93\n"
-KERN_ERR "******* Working around it, but it may cause SEGVs or burn power.\n"
-KERN_ERR "******* Please consider a BIOS update.\n"
-KERN_ERR "******* Disabling USB legacy in the BIOS may also help.\n";
+KERN_ERR 
+"******* Your BIOS seems to not contain a fix for K8 errata #93\n"
+"******* Working around it, but it may cause SEGVs or burn power.\n"
+"******* Please consider a BIOS update.\n"
+"******* Disabling USB legacy in the BIOS may also help.\n";
 
 /*
  * No vm86 mode in 64-bit mode:
@@ -696,7 +697,7 @@ show_signal_msg(struct pt_regs *regs, unsigned long error_code,
         if (!printk_ratelimit())
                 return;
 
-        printk(KERN_CONT "%s%s[%d]: segfault at %lx ip %p sp %p error %lx",
+        printk("%s%s[%d]: segfault at %lx ip %p sp %p error %lx",
                 task_pid_nr(tsk) > 1 ? KERN_INFO : KERN_EMERG,
                 tsk->comm, task_pid_nr(tsk), address,
                 (void *)regs->ip, (void *)regs->sp, error_code);
diff --git a/arch/x86/mm/highmem_32.c b/arch/x86/mm/highmem_32.c
index 58f621e81919..2112ed55e7ea 100644
--- a/arch/x86/mm/highmem_32.c
+++ b/arch/x86/mm/highmem_32.c
@@ -103,6 +103,7 @@ EXPORT_SYMBOL(kmap);
 EXPORT_SYMBOL(kunmap);
 EXPORT_SYMBOL(kmap_atomic);
 EXPORT_SYMBOL(kunmap_atomic);
+EXPORT_SYMBOL(kmap_atomic_prot);
 
 void __init set_highmem_pages_init(void)
 {
diff --git a/arch/x86/mm/init.c b/arch/x86/mm/init.c
index 47ce9a2ce5e7..0607119cef94 100644
--- a/arch/x86/mm/init.c
+++ b/arch/x86/mm/init.c
@@ -12,6 +12,7 @@
 #include <asm/system.h>
 #include <asm/tlbflush.h>
 #include <asm/tlb.h>
+#include <asm/proto.h>
 
 DEFINE_PER_CPU(struct mmu_gather, mmu_gathers);
 
diff --git a/arch/x86/mm/init_64.c b/arch/x86/mm/init_64.c
index b177652251a4..ea56b8cbb6a6 100644
--- a/arch/x86/mm/init_64.c
+++ b/arch/x86/mm/init_64.c
@@ -598,8 +598,15 @@ void __init paging_init(void)
 
         sparse_memory_present_with_active_regions(MAX_NUMNODES);
         sparse_init();
-        /* clear the default setting with node 0 */
-        nodes_clear(node_states[N_NORMAL_MEMORY]);
+
+        /*
+         * clear the default setting with node 0
+         * note: don't use nodes_clear here, that is really clearing when
+         *       numa support is not compiled in, and later node_set_state
+         *       will not set it back.
+         */
+        node_clear_state(0, N_NORMAL_MEMORY);
+
         free_area_init_nodes(max_zone_pfns);
 }
 
@@ -789,7 +796,7 @@ int __init reserve_bootmem_generic(unsigned long phys, unsigned long len,
                 return ret;
 
 #else
-        reserve_bootmem(phys, len, BOOTMEM_DEFAULT);
+        reserve_bootmem(phys, len, flags);
 #endif
 
         if (phys+len <= MAX_DMA_PFN*PAGE_SIZE) {
diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c
index aeaea8c5b2f4..2a76eba9da21 100644
--- a/arch/x86/mm/ioremap.c
+++ b/arch/x86/mm/ioremap.c
@@ -233,7 +233,8 @@ static void __iomem *__ioremap_caller(resource_size_t phys_addr,
         }
 
         if (prot_val != new_prot_val) {
-                if (!is_new_memtype_allowed(prot_val, new_prot_val)) {
+                if (!is_new_memtype_allowed(phys_addr, size,
+                                            prot_val, new_prot_val)) {
                         printk(KERN_ERR
                 "ioremap error for 0x%llx-0x%llx, requested 0x%lx, got 0x%lx\n",
                                 (unsigned long long)phys_addr,
diff --git a/arch/x86/mm/pageattr.c b/arch/x86/mm/pageattr.c
index 1b734d7a8966..7e600c1962db 100644
--- a/arch/x86/mm/pageattr.c
+++ b/arch/x86/mm/pageattr.c
@@ -591,9 +591,12 @@ static int __change_page_attr(struct cpa_data *cpa, int primary)
         unsigned int level;
         pte_t *kpte, old_pte;
 
-        if (cpa->flags & CPA_PAGES_ARRAY)
-                address = (unsigned long)page_address(cpa->pages[cpa->curpage]);
-        else if (cpa->flags & CPA_ARRAY)
+        if (cpa->flags & CPA_PAGES_ARRAY) {
+                struct page *page = cpa->pages[cpa->curpage];
+                if (unlikely(PageHighMem(page)))
+                        return 0;
+                address = (unsigned long)page_address(page);
+        } else if (cpa->flags & CPA_ARRAY)
                 address = cpa->vaddr[cpa->curpage];
         else
                 address = *cpa->vaddr;
@@ -697,9 +700,12 @@ static int cpa_process_alias(struct cpa_data *cpa)
          * No need to redo, when the primary call touched the direct
          * mapping already:
          */
-        if (cpa->flags & CPA_PAGES_ARRAY)
-                vaddr = (unsigned long)page_address(cpa->pages[cpa->curpage]);
-        else if (cpa->flags & CPA_ARRAY)
+        if (cpa->flags & CPA_PAGES_ARRAY) {
+                struct page *page = cpa->pages[cpa->curpage];
+                if (unlikely(PageHighMem(page)))
+                        return 0;
+                vaddr = (unsigned long)page_address(page);
+        } else if (cpa->flags & CPA_ARRAY)
                 vaddr = cpa->vaddr[cpa->curpage];
         else
                 vaddr = *cpa->vaddr;
@@ -997,12 +1003,15 @@ EXPORT_SYMBOL(set_memory_array_uc);
 int _set_memory_wc(unsigned long addr, int numpages)
 {
         int ret;
+        unsigned long addr_copy = addr;
+
         ret = change_page_attr_set(&addr, numpages,
                                     __pgprot(_PAGE_CACHE_UC_MINUS), 0);
-
         if (!ret) {
-                ret = change_page_attr_set(&addr, numpages,
-                                    __pgprot(_PAGE_CACHE_WC), 0);
+                ret = change_page_attr_set_clr(&addr_copy, numpages,
+                                               __pgprot(_PAGE_CACHE_WC),
+                                               __pgprot(_PAGE_CACHE_MASK),
+                                               0, 0, NULL);
         }
         return ret;
 }
@@ -1119,7 +1128,9 @@ int set_pages_array_uc(struct page **pages, int addrinarray)
         int free_idx;
 
         for (i = 0; i < addrinarray; i++) {
-                start = (unsigned long)page_address(pages[i]);
+                if (PageHighMem(pages[i]))
+                        continue;
+                start = page_to_pfn(pages[i]) << PAGE_SHIFT;
                 end = start + PAGE_SIZE;
                 if (reserve_memtype(start, end, _PAGE_CACHE_UC_MINUS, NULL))
                         goto err_out;
@@ -1132,7 +1143,9 @@ int set_pages_array_uc(struct page **pages, int addrinarray)
 err_out:
         free_idx = i;
         for (i = 0; i < free_idx; i++) {
-                start = (unsigned long)page_address(pages[i]);
+                if (PageHighMem(pages[i]))
+                        continue;
+                start = page_to_pfn(pages[i]) << PAGE_SHIFT;
                 end = start + PAGE_SIZE;
                 free_memtype(start, end);
         }
@@ -1161,7 +1174,9 @@ int set_pages_array_wb(struct page **pages, int addrinarray)
                 return retval;
 
         for (i = 0; i < addrinarray; i++) {
-                start = (unsigned long)page_address(pages[i]);
+                if (PageHighMem(pages[i]))
+                        continue;
+                start = page_to_pfn(pages[i]) << PAGE_SHIFT;
                 end = start + PAGE_SIZE;
                 free_memtype(start, end);
         }
diff --git a/arch/x86/mm/pat.c b/arch/x86/mm/pat.c
index a6cace0694a2..d2a72abc9de1 100644
--- a/arch/x86/mm/pat.c
+++ b/arch/x86/mm/pat.c
@@ -631,20 +631,21 @@ static unsigned long lookup_memtype(u64 paddr)
 int io_reserve_memtype(resource_size_t start, resource_size_t end,
                         unsigned long *type)
 {
+        resource_size_t size = end - start;
         unsigned long req_type = *type;
         unsigned long new_type;
         int ret;
 
-        WARN_ON_ONCE(iomem_map_sanity_check(start, end - start));
+        WARN_ON_ONCE(iomem_map_sanity_check(start, size));
 
         ret = reserve_memtype(start, end, req_type, &new_type);
         if (ret)
                 goto out_err;
 
-        if (!is_new_memtype_allowed(req_type, new_type))
+        if (!is_new_memtype_allowed(start, size, req_type, new_type))
                 goto out_free;
 
-        if (kernel_map_sync_memtype(start, end - start, new_type) < 0)
+        if (kernel_map_sync_memtype(start, size, new_type) < 0)
                 goto out_free;
 
         *type = new_type;
@@ -812,7 +813,8 @@ static int reserve_pfn_range(u64 paddr, unsigned long size, pgprot_t *vma_prot,
                 return ret;
 
         if (flags != want_flags) {
-                if (strict_prot || !is_new_memtype_allowed(want_flags, flags)) {
+                if (strict_prot ||
+                    !is_new_memtype_allowed(paddr, size, want_flags, flags)) {
                         free_memtype(paddr, paddr + size);
                         printk(KERN_ERR "%s:%d map pfn expected mapping type %s"
                                 " for %Lx-%Lx, got %s\n",
diff --git a/arch/x86/mm/pgtable.c b/arch/x86/mm/pgtable.c
index 8e43bdd45456..ed34f5e35999 100644
--- a/arch/x86/mm/pgtable.c
+++ b/arch/x86/mm/pgtable.c
@@ -25,7 +25,7 @@ pgtable_t pte_alloc_one(struct mm_struct *mm, unsigned long address)
         return pte;
 }
 
-void __pte_free_tlb(struct mmu_gather *tlb, struct page *pte)
+void ___pte_free_tlb(struct mmu_gather *tlb, struct page *pte)
 {
         pgtable_page_dtor(pte);
         paravirt_release_pte(page_to_pfn(pte));
@@ -33,14 +33,14 @@ void __pte_free_tlb(struct mmu_gather *tlb, struct page *pte)
 }
 
 #if PAGETABLE_LEVELS > 2
-void __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd)
+void ___pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd)
 {
         paravirt_release_pmd(__pa(pmd) >> PAGE_SHIFT);
         tlb_remove_page(tlb, virt_to_page(pmd));
 }
 
 #if PAGETABLE_LEVELS > 3
-void __pud_free_tlb(struct mmu_gather *tlb, pud_t *pud)
+void ___pud_free_tlb(struct mmu_gather *tlb, pud_t *pud)
 {
         paravirt_release_pud(__pa(pud) >> PAGE_SHIFT);
         tlb_remove_page(tlb, virt_to_page(pud));
@@ -329,7 +329,6 @@ void __init reserve_top_address(unsigned long reserve)
         printk(KERN_INFO "Reserving virtual address space above 0x%08x\n",
                (int)-reserve);
         __FIXADDR_TOP = -reserve - PAGE_SIZE;
-        __VMALLOC_RESERVE += reserve;
 #endif
 }
 
diff --git a/arch/x86/mm/srat_64.c b/arch/x86/mm/srat_64.c
index 2dfcbf9df2ae..dbb5381f7b3b 100644
--- a/arch/x86/mm/srat_64.c
+++ b/arch/x86/mm/srat_64.c
@@ -79,8 +79,10 @@ static __init void bad_srat(void)
         acpi_numa = -1;
         for (i = 0; i < MAX_LOCAL_APIC; i++)
                 apicid_to_node[i] = NUMA_NO_NODE;
-        for (i = 0; i < MAX_NUMNODES; i++)
-                nodes_add[i].start = nodes[i].end = 0;
+        for (i = 0; i < MAX_NUMNODES; i++) {
+                nodes[i].start = nodes[i].end = 0;
+                nodes_add[i].start = nodes_add[i].end = 0;
+        }
         remove_all_active_ranges();
 }