8 files changed, 76 insertions, 49 deletions

diff --git a/arch/mips/kernel/.gitignore b/arch/mips/kernel/.gitignore
new file mode 100644
index 000000000000..c5f676c3c224
--- /dev/null
+++ b/arch/mips/kernel/.gitignore
@@ -0,0 +1 @@
+vmlinux.lds
diff --git a/arch/mips/kernel/kgdb.c b/arch/mips/kernel/kgdb.c
index c5a8b2d21ca4..8f6d58ede33c 100644
--- a/arch/mips/kernel/kgdb.c
+++ b/arch/mips/kernel/kgdb.c
@@ -62,13 +62,13 @@ void arch_kgdb_breakpoint(void)
 
 static void kgdb_call_nmi_hook(void *ignored)
 {
-        kgdb_nmicallback(raw_smp_processor_id(), (void *)0);
+        kgdb_nmicallback(raw_smp_processor_id(), NULL);
 }
 
 void kgdb_roundup_cpus(unsigned long flags)
 {
         local_irq_enable();
-        smp_call_function(kgdb_call_nmi_hook, NULL, NULL);
+        smp_call_function(kgdb_call_nmi_hook, NULL, 0);
         local_irq_disable();
 }
 
@@ -190,9 +190,6 @@ static int kgdb_mips_notify(struct notifier_block *self, unsigned long cmd,
         struct pt_regs *regs = args->regs;
         int trap = (regs->cp0_cause & 0x7c) >> 2;
 
-        if (fixup_exception(regs))
-                return NOTIFY_DONE;
-
         /* Userpace events, ignore. */
         if (user_mode(regs))
                 return NOTIFY_DONE;
diff --git a/arch/mips/kernel/scall32-o32.S b/arch/mips/kernel/scall32-o32.S
index fc4fd4d705e2..5e75a316f6b1 100644
--- a/arch/mips/kernel/scall32-o32.S
+++ b/arch/mips/kernel/scall32-o32.S
@@ -647,6 +647,12 @@ einval:	li	v0, -EINVAL
         sys     sys_timerfd_create      2
         sys     sys_timerfd_gettime     2
         sys     sys_timerfd_settime     4
+        sys     sys_signalfd4           4
+        sys     sys_eventfd2            2       /* 4325 */
+        sys     sys_epoll_create1       1
+        sys     sys_dup3                3
+        sys     sys_pipe2               2
+        sys     sys_inotify_init1       1
         .endm
 
         /* We pre-compute the number of _instruction_ bytes needed to
diff --git a/arch/mips/kernel/scall64-64.S b/arch/mips/kernel/scall64-64.S
index 2b73fd1e4528..3d58204c9d44 100644
--- a/arch/mips/kernel/scall64-64.S
+++ b/arch/mips/kernel/scall64-64.S
@@ -481,4 +481,10 @@ sys_call_table:
         PTR     sys_timerfd_create              /* 5280 */
         PTR     sys_timerfd_gettime
         PTR     sys_timerfd_settime
+        PTR     sys_signalfd4
+        PTR     sys_eventfd2
+        PTR     sys_epoll_create1               /* 5285 */
+        PTR     sys_dup3
+        PTR     sys_pipe2
+        PTR     sys_inotify_init1
         .size   sys_call_table,.-sys_call_table
diff --git a/arch/mips/kernel/scall64-n32.S b/arch/mips/kernel/scall64-n32.S
index 2654e75d2fef..da7f1b6ea0fb 100644
--- a/arch/mips/kernel/scall64-n32.S
+++ b/arch/mips/kernel/scall64-n32.S
@@ -407,4 +407,10 @@ EXPORT(sysn32_call_table)
         PTR     sys_timerfd_create
         PTR     sys_timerfd_gettime             /* 5285 */
         PTR     sys_timerfd_settime
+        PTR     sys_signalfd4
+        PTR     sys_eventfd2
+        PTR     sys_epoll_create1
+        PTR     sys_dup3                        /* 5290 */
+        PTR     sys_pipe2
+        PTR     sys_inotify_init1
         .size   sysn32_call_table,.-sysn32_call_table
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index 76167bea5a70..d7cd1aac9ada 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -529,4 +529,10 @@ sys_call_table:
         PTR     sys_timerfd_create
         PTR     sys_timerfd_gettime
         PTR     sys_timerfd_settime
+        PTR     compat_sys_signalfd4
+        PTR     sys_eventfd2                    /* 4325 */
+        PTR     sys_epoll_create1
+        PTR     sys_dup3
+        PTR     sys_pipe2
+        PTR     sys_inotify_init1
         .size   sys_call_table,.-sys_call_table
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index 8af84867e74d..16f8edfe5cdc 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -78,7 +78,7 @@ void __init add_memory_region(phys_t start, phys_t size, long type)
 
         /* Sanity check */
         if (start + size < start) {
-                printk("Trying to add an invalid memory region, skipped\n");
+                pr_warning("Trying to add an invalid memory region, skipped\n");
                 return;
         }
 
@@ -92,7 +92,7 @@ void __init add_memory_region(phys_t start, phys_t size, long type)
         }
 
         if (x == BOOT_MEM_MAP_MAX) {
-                printk("Ooops! Too many entries in the memory map!\n");
+                pr_err("Ooops! Too many entries in the memory map!\n");
                 return;
         }
 
@@ -108,22 +108,22 @@ static void __init print_memory_map(void)
         const int field = 2 * sizeof(unsigned long);
 
         for (i = 0; i < boot_mem_map.nr_map; i++) {
-                printk(" memory: %0*Lx @ %0*Lx ",
+                printk(KERN_INFO " memory: %0*Lx @ %0*Lx ",
                        field, (unsigned long long) boot_mem_map.map[i].size,
                        field, (unsigned long long) boot_mem_map.map[i].addr);
 
                 switch (boot_mem_map.map[i].type) {
                 case BOOT_MEM_RAM:
-                        printk("(usable)\n");
+                        printk(KERN_CONT "(usable)\n");
                         break;
                 case BOOT_MEM_ROM_DATA:
-                        printk("(ROM data)\n");
+                        printk(KERN_CONT "(ROM data)\n");
                         break;
                 case BOOT_MEM_RESERVED:
-                        printk("(reserved)\n");
+                        printk(KERN_CONT "(reserved)\n");
                         break;
                 default:
-                        printk("type %lu\n", boot_mem_map.map[i].type);
+                        printk(KERN_CONT "type %lu\n", boot_mem_map.map[i].type);
                         break;
                 }
         }
@@ -160,36 +160,39 @@ early_param("rd_size", rd_size_early);
 static unsigned long __init init_initrd(void)
 {
         unsigned long end;
-        u32 *initrd_header;
 
         /*
          * Board specific code or command line parser should have
          * already set up initrd_start and initrd_end. In these cases
          * perfom sanity checks and use them if all looks good.
          */
-        if (initrd_start && initrd_end > initrd_start)
-                goto sanitize;
+        if (!initrd_start || initrd_end <= initrd_start) {
+#ifdef CONFIG_PROBE_INITRD_HEADER
+                u32 *initrd_header;
 
-        /*
-         * See if initrd has been added to the kernel image by
-         * arch/mips/boot/addinitrd.c. In that case a header is
-         * prepended to initrd and is made up by 8 bytes. The fisrt
-         * word is a magic number and the second one is the size of
-         * initrd.  Initrd start must be page aligned in any cases.
-         */
-        initrd_header = __va(PAGE_ALIGN(__pa_symbol(&_end) + 8)) - 8;
-        if (initrd_header[0] != 0x494E5244)
+                /*
+                 * See if initrd has been added to the kernel image by
+                 * arch/mips/boot/addinitrd.c. In that case a header is
+                 * prepended to initrd and is made up by 8 bytes. The first
+                 * word is a magic number and the second one is the size of
+                 * initrd.  Initrd start must be page aligned in any cases.
+                 */
+                initrd_header = __va(PAGE_ALIGN(__pa_symbol(&_end) + 8)) - 8;
+                if (initrd_header[0] != 0x494E5244)
+                        goto disable;
+                initrd_start = (unsigned long)(initrd_header + 2);
+                initrd_end = initrd_start + initrd_header[1];
+#else
                 goto disable;
-        initrd_start = (unsigned long)(initrd_header + 2);
-        initrd_end = initrd_start + initrd_header[1];
+#endif
+        }
 
-sanitize:
         if (initrd_start & ~PAGE_MASK) {
-                printk(KERN_ERR "initrd start must be page aligned\n");
+                pr_err("initrd start must be page aligned\n");
                 goto disable;
         }
         if (initrd_start < PAGE_OFFSET) {
-                printk(KERN_ERR "initrd start < PAGE_OFFSET\n");
+                pr_err("initrd start < PAGE_OFFSET\n");
                 goto disable;
         }
 
@@ -221,18 +224,18 @@ static void __init finalize_initrd(void)
                 goto disable;
         }
         if (__pa(initrd_end) > PFN_PHYS(max_low_pfn)) {
-                printk("Initrd extends beyond end of memory");
+                printk(KERN_ERR "Initrd extends beyond end of memory");
                 goto disable;
         }
 
         reserve_bootmem(__pa(initrd_start), size, BOOTMEM_DEFAULT);
         initrd_below_start_ok = 1;
 
-        printk(KERN_INFO "Initial ramdisk at: 0x%lx (%lu bytes)\n",
-               initrd_start, size);
+        pr_info("Initial ramdisk at: 0x%lx (%lu bytes)\n",
+                initrd_start, size);
         return;
 disable:
-        printk(" - disabling initrd\n");
+        printk(KERN_CONT " - disabling initrd\n");
         initrd_start = 0;
         initrd_end = 0;
 }
@@ -310,14 +313,12 @@ static void __init bootmem_init(void)
         if (min_low_pfn >= max_low_pfn)
                 panic("Incorrect memory mapping !!!");
         if (min_low_pfn > ARCH_PFN_OFFSET) {
-                printk(KERN_INFO
-                       "Wasting %lu bytes for tracking %lu unused pages\n",
-                       (min_low_pfn - ARCH_PFN_OFFSET) * sizeof(struct page),
-                       min_low_pfn - ARCH_PFN_OFFSET);
+                pr_info("Wasting %lu bytes for tracking %lu unused pages\n",
+                        (min_low_pfn - ARCH_PFN_OFFSET) * sizeof(struct page),
+                        min_low_pfn - ARCH_PFN_OFFSET);
         } else if (min_low_pfn < ARCH_PFN_OFFSET) {
-                printk(KERN_INFO
-                       "%lu free pages won't be used\n",
-                       ARCH_PFN_OFFSET - min_low_pfn);
+                pr_info("%lu free pages won't be used\n",
+                        ARCH_PFN_OFFSET - min_low_pfn);
         }
         min_low_pfn = ARCH_PFN_OFFSET;
 
@@ -471,7 +472,7 @@ static void __init arch_mem_init(char **cmdline_p)
         /* call board setup routine */
         plat_mem_setup();
 
-        printk("Determined physical RAM map:\n");
+        pr_info("Determined physical RAM map:\n");
         print_memory_map();
 
         strlcpy(command_line, arcs_cmdline, sizeof(command_line));
@@ -482,7 +483,7 @@ static void __init arch_mem_init(char **cmdline_p)
         parse_early_param();
 
         if (usermem) {
-                printk("User-defined physical RAM map:\n");
+                pr_info("User-defined physical RAM map:\n");
                 print_memory_map();
         }
 
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 426cced1e9dc..6bee29097a56 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -373,8 +373,8 @@ void __noreturn die(const char * str, const struct pt_regs * regs)
         do_exit(SIGSEGV);
 }
 
-extern const struct exception_table_entry __start___dbe_table[];
-extern const struct exception_table_entry __stop___dbe_table[];
+extern struct exception_table_entry __start___dbe_table[];
+extern struct exception_table_entry __stop___dbe_table[];
 
 __asm__(
 "       .section        __dbe_table, \"a\"\n"
@@ -1200,7 +1200,7 @@ void *set_except_vector(int n, void *addr)
         if (n == 0 && cpu_has_divec) {
                 *(u32 *)(ebase + 0x200) = 0x08000000 |
                                           (0x03ffffff & (handler >> 2));
-                flush_icache_range(ebase + 0x200, ebase + 0x204);
+                local_flush_icache_range(ebase + 0x200, ebase + 0x204);
         }
         return (void *)old_handler;
 }
@@ -1283,7 +1283,8 @@ static void *set_vi_srs_handler(int n, vi_handler_t addr, int srs)
                 *w = (*w & 0xffff0000) | (((u32)handler >> 16) & 0xffff);
                 w = (u32 *)(b + ori_offset);
                 *w = (*w & 0xffff0000) | ((u32)handler & 0xffff);
-                flush_icache_range((unsigned long)b, (unsigned long)(b+handler_len));
+                local_flush_icache_range((unsigned long)b,
+                                         (unsigned long)(b+handler_len));
         }
         else {
                 /*
@@ -1295,7 +1296,8 @@ static void *set_vi_srs_handler(int n, vi_handler_t addr, int srs)
                 w = (u32 *)b;
                 *w++ = 0x08000000 | (((u32)handler >> 2) & 0x03fffff); /* j handler */
                 *w = 0;
-                flush_icache_range((unsigned long)b, (unsigned long)(b+8));
+                local_flush_icache_range((unsigned long)b,
+                                         (unsigned long)(b+8));
         }
 
         return (void *)old_handler;
@@ -1515,7 +1517,7 @@ void __cpuinit per_cpu_trap_init(void)
 void __init set_handler(unsigned long offset, void *addr, unsigned long size)
 {
         memcpy((void *)(ebase + offset), addr, size);
-        flush_icache_range(ebase + offset, ebase + offset + size);
+        local_flush_icache_range(ebase + offset, ebase + offset + size);
 }
 
 static char panic_null_cerr[] __cpuinitdata =
@@ -1680,6 +1682,8 @@ void __init trap_init(void)
         signal32_init();
 #endif
 
-        flush_icache_range(ebase, ebase + 0x400);
+        local_flush_icache_range(ebase, ebase + 0x400);
         flush_tlb_handlers();
+
+        sort_extable(__start___dbe_table, __stop___dbe_table);
 }