14 files changed, 73 insertions, 94 deletions

diff --git a/arch/mips/kernel/asm-offsets.c b/arch/mips/kernel/asm-offsets.c
index 92b28b674d6f..0facfaf4e950 100644
--- a/arch/mips/kernel/asm-offsets.c
+++ b/arch/mips/kernel/asm-offsets.c
@@ -272,8 +272,8 @@ void output_sc_defines(void)
         text("/* Linux sigcontext offsets. */");
         offset("#define SC_REGS       ", struct sigcontext, sc_regs);
         offset("#define SC_FPREGS     ", struct sigcontext, sc_fpregs);
-        offset("#define SC_MDHI       ", struct sigcontext, sc_hi);
-        offset("#define SC_MDLO       ", struct sigcontext, sc_lo);
+        offset("#define SC_MDHI       ", struct sigcontext, sc_mdhi);
+        offset("#define SC_MDLO       ", struct sigcontext, sc_mdlo);
         offset("#define SC_PC         ", struct sigcontext, sc_pc);
         offset("#define SC_FPC_CSR    ", struct sigcontext, sc_fpc_csr);
         linefeed;
diff --git a/arch/mips/kernel/cpu-bugs64.c b/arch/mips/kernel/cpu-bugs64.c
index 47a087b6c11b..d268827c62bd 100644
--- a/arch/mips/kernel/cpu-bugs64.c
+++ b/arch/mips/kernel/cpu-bugs64.c
@@ -206,7 +206,7 @@ static inline void check_daddi(void)
                 "daddi  %0, %1, %3\n\t"
                 ".set   pop"
                 : "=r" (v), "=&r" (tmp)
-                : "I" (0xffffffffffffdb9a), "I" (0x1234));
+                : "I" (0xffffffffffffdb9aUL), "I" (0x1234));
         set_except_vector(12, handler);
         local_irq_restore(flags);
 
@@ -224,7 +224,7 @@ static inline void check_daddi(void)
                 "dsrl   %1, %1, 1\n\t"
                 "daddi  %0, %1, %3"
                 : "=r" (v), "=&r" (tmp)
-                : "I" (0xffffffffffffdb9a), "I" (0x1234));
+                : "I" (0xffffffffffffdb9aUL), "I" (0x1234));
         set_except_vector(12, handler);
         local_irq_restore(flags);
 
@@ -280,7 +280,7 @@ static inline void check_daddiu(void)
                 "daddu  %1, %2\n\t"
                 ".set   pop"
                 : "=&r" (v), "=&r" (w), "=&r" (tmp)
-                : "I" (0xffffffffffffdb9a), "I" (0x1234));
+                : "I" (0xffffffffffffdb9aUL), "I" (0x1234));
 
         if (v == w) {
                 printk("no.\n");
@@ -296,7 +296,7 @@ static inline void check_daddiu(void)
                 "addiu  %1, $0, %4\n\t"
                 "daddu  %1, %2"
                 : "=&r" (v), "=&r" (w), "=&r" (tmp)
-                : "I" (0xffffffffffffdb9a), "I" (0x1234));
+                : "I" (0xffffffffffffdb9aUL), "I" (0x1234));
 
         if (v == w) {
                 printk("yes.\n");
diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c
index 58b3b14873cb..8c2c359a05f4 100644
--- a/arch/mips/kernel/cpu-probe.c
+++ b/arch/mips/kernel/cpu-probe.c
@@ -121,6 +121,7 @@ static inline void check_wait(void)
         case CPU_24K:
         case CPU_25KF:
         case CPU_34K:
+        case CPU_74K:
         case CPU_PR4450:
                 cpu_wait = r4k_wait;
                 printk(" available.\n");
@@ -432,6 +433,15 @@ static inline void cpu_probe_legacy(struct cpuinfo_mips *c)
                              MIPS_CPU_LLSC;
                 c->tlbsize = 64;
                 break;
+        case PRID_IMP_R14000:
+                c->cputype = CPU_R14000;
+                c->isa_level = MIPS_CPU_ISA_IV;
+                c->options = MIPS_CPU_TLB | MIPS_CPU_4K_CACHE | MIPS_CPU_4KEX |
+                             MIPS_CPU_FPU | MIPS_CPU_32FPR |
+                             MIPS_CPU_COUNTER | MIPS_CPU_WATCH |
+                             MIPS_CPU_LLSC;
+                c->tlbsize = 64;
+                break;
         }
 }
 
@@ -593,6 +603,9 @@ static inline void cpu_probe_mips(struct cpuinfo_mips *c)
         case PRID_IMP_34K:
                 c->cputype = CPU_34K;
                 break;
+        case PRID_IMP_74K:
+                c->cputype = CPU_74K;
+                break;
         }
 }
 
@@ -642,7 +655,7 @@ static inline void cpu_probe_sibyte(struct cpuinfo_mips *c)
         case PRID_IMP_SB1:
                 c->cputype = CPU_SB1;
                 /* FPU in pass1 is known to have issues. */
-                if ((c->processor_id & 0xff) < 0x20)
+                if ((c->processor_id & 0xff) < 0x02)
                         c->options &= ~(MIPS_CPU_FPU | MIPS_CPU_32FPR);
                 break;
         case PRID_IMP_SB1A:
diff --git a/arch/mips/kernel/entry.S b/arch/mips/kernel/entry.S
index d101d2fb24ca..a9c6de1b9542 100644
--- a/arch/mips/kernel/entry.S
+++ b/arch/mips/kernel/entry.S
@@ -101,7 +101,7 @@ FEXPORT(restore_all)			# restore full frame
         EMT
 1:
         mfc0    v1, CP0_TCSTATUS
-        /* We set IXMT above, XOR should cler it here */
+        /* We set IXMT above, XOR should clear it here */
         xori    v1, v1, TCSTATUS_IXMT
         or      v1, v0, v1
         mtc0    v1, CP0_TCSTATUS
diff --git a/arch/mips/kernel/gdb-low.S b/arch/mips/kernel/gdb-low.S
index 10f28fb9f008..5fd7a8af0c62 100644
--- a/arch/mips/kernel/gdb-low.S
+++ b/arch/mips/kernel/gdb-low.S
@@ -54,9 +54,11 @@
                  */
                 mfc0    k0, CP0_CAUSE
                 andi    k0, k0, 0x7c
-                add     k1, k1, k0
-                PTR_L   k0, saved_vectors(k1)
-                jr      k0
+#ifdef CONFIG_64BIT
+                dsll    k0, k0, 1
+#endif
+                PTR_L   k1, saved_vectors(k0)
+                jr      k1
                 nop
 1:
                 move    k0, sp
diff --git a/arch/mips/kernel/module.c b/arch/mips/kernel/module.c
index e54a7f442f8a..d7bf0215bc1d 100644
--- a/arch/mips/kernel/module.c
+++ b/arch/mips/kernel/module.c
@@ -288,6 +288,9 @@ int apply_relocate(Elf_Shdr *sechdrs, const char *strtab,
                 sym = (Elf_Sym *)sechdrs[symindex].sh_addr
                         + ELF_MIPS_R_SYM(rel[i]);
                 if (!sym->st_value) {
+                        /* Ignore unresolved weak symbol */
+                        if (ELF_ST_BIND(sym->st_info) == STB_WEAK)
+                                continue;
                         printk(KERN_WARNING "%s: Unknown symbol %s\n",
                                me->name, strtab + sym->st_name);
                         return -ENOENT;
@@ -325,6 +328,9 @@ int apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,
                 sym = (Elf_Sym *)sechdrs[symindex].sh_addr
                         + ELF_MIPS_R_SYM(rel[i]);
                 if (!sym->st_value) {
+                        /* Ignore unresolved weak symbol */
+                        if (ELF_ST_BIND(sym->st_info) == STB_WEAK)
+                                continue;
                         printk(KERN_WARNING "%s: Unknown symbol %s\n",
                                me->name, strtab + sym->st_name);
                         return -ENOENT;
diff --git a/arch/mips/kernel/proc.c b/arch/mips/kernel/proc.c
index 84ab959f924a..9def554f335b 100644
--- a/arch/mips/kernel/proc.c
+++ b/arch/mips/kernel/proc.c
@@ -42,6 +42,7 @@ static const char *cpu_name[] = {
         [CPU_R8000]     = "R8000",
         [CPU_R10000]    = "R10000",
         [CPU_R12000]    = "R12000",
+        [CPU_R14000]    = "R14000",
         [CPU_R4300]     = "R4300",
         [CPU_R4650]     = "R4650",
         [CPU_R4700]     = "R4700",
@@ -74,6 +75,7 @@ static const char *cpu_name[] = {
         [CPU_24K]       = "MIPS 24K",
         [CPU_25KF]      = "MIPS 25Kf",
         [CPU_34K]       = "MIPS 34K",
+        [CPU_74K]       = "MIPS 74K",
         [CPU_VR4111]    = "NEC VR4111",
         [CPU_VR4121]    = "NEC VR4121",
         [CPU_VR4122]    = "NEC VR4122",
diff --git a/arch/mips/kernel/scall64-o32.S b/arch/mips/kernel/scall64-o32.S
index b53a9207f530..8efb23a84131 100644
--- a/arch/mips/kernel/scall64-o32.S
+++ b/arch/mips/kernel/scall64-o32.S
@@ -209,7 +209,7 @@ sys_call_table:
         PTR     sys_fork
         PTR     sys_read
         PTR     sys_write
-        PTR     sys_open                        /* 4005 */
+        PTR     compat_sys_open                 /* 4005 */
         PTR     sys_close
         PTR     sys_waitpid
         PTR     sys_creat
diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c
index bcf1b10e518f..397a70e651b5 100644
--- a/arch/mips/kernel/setup.c
+++ b/arch/mips/kernel/setup.c
@@ -246,7 +246,7 @@ static inline int parse_rd_cmdline(unsigned long* rd_start, unsigned long* rd_en
 #ifdef CONFIG_64BIT
         /* HACK: Guess if the sign extension was forgotten */
         if (start > 0x0000000080000000 && start < 0x00000000ffffffff)
-                start |= 0xffffffff00000000;
+                start |= 0xffffffff00000000UL;
 #endif
 
         end = start + size;
@@ -355,8 +355,6 @@ static inline void bootmem_init(void)
         }
 #endif
 
-        memory_present(0, first_usable_pfn, max_low_pfn);
-
         /* Initialize the boot-time allocator with low memory only.  */
         bootmap_size = init_bootmem(first_usable_pfn, max_low_pfn);
 
@@ -410,6 +408,7 @@ static inline void bootmem_init(void)
 
                 /* Register lowmem ranges */
                 free_bootmem(PFN_PHYS(curr_pfn), PFN_PHYS(size));
+                memory_present(0, curr_pfn, curr_pfn + size - 1);
         }
 
         /* Reserve the bootmap memory.  */
@@ -419,17 +418,20 @@ static inline void bootmem_init(void)
 #ifdef CONFIG_BLK_DEV_INITRD
         initrd_below_start_ok = 1;
         if (initrd_start) {
-                unsigned long initrd_size = ((unsigned char *)initrd_end) - ((unsigned char *)initrd_start);
+                unsigned long initrd_size = ((unsigned char *)initrd_end) -
+                        ((unsigned char *)initrd_start);
+                const int width = sizeof(long) * 2;
+
                 printk("Initial ramdisk at: 0x%p (%lu bytes)\n",
                        (void *)initrd_start, initrd_size);
 
                 if (CPHYSADDR(initrd_end) > PFN_PHYS(max_low_pfn)) {
                         printk("initrd extends beyond end of memory "
                                "(0x%0*Lx > 0x%0*Lx)\ndisabling initrd\n",
-                               sizeof(long) * 2,
-                               (unsigned long long)CPHYSADDR(initrd_end),
-                               sizeof(long) * 2,
-                               (unsigned long long)PFN_PHYS(max_low_pfn));
+                               width,
+                               (unsigned long long) CPHYSADDR(initrd_end),
+                               width,
+                               (unsigned long long) PFN_PHYS(max_low_pfn));
                         initrd_start = initrd_end = 0;
                         initrd_reserve_bootmem = 0;
                 }
diff --git a/arch/mips/kernel/signal-common.h b/arch/mips/kernel/signal-common.h
index 3ca786215d48..ce6cb915c0a7 100644
--- a/arch/mips/kernel/signal-common.h
+++ b/arch/mips/kernel/signal-common.h
@@ -31,7 +31,6 @@ setup_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
         save_gp_reg(31);
 #undef save_gp_reg
 
-#ifdef CONFIG_32BIT
         err |= __put_user(regs->hi, &sc->sc_mdhi);
         err |= __put_user(regs->lo, &sc->sc_mdlo);
         if (cpu_has_dsp) {
@@ -43,20 +42,6 @@ setup_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
                 err |= __put_user(mflo3(), &sc->sc_lo3);
                 err |= __put_user(rddsp(DSP_MASK), &sc->sc_dsp);
         }
-#endif
-#ifdef CONFIG_64BIT
-        err |= __put_user(regs->hi, &sc->sc_hi[0]);
-        err |= __put_user(regs->lo, &sc->sc_lo[0]);
-        if (cpu_has_dsp) {
-                err |= __put_user(mfhi1(), &sc->sc_hi[1]);
-                err |= __put_user(mflo1(), &sc->sc_lo[1]);
-                err |= __put_user(mfhi2(), &sc->sc_hi[2]);
-                err |= __put_user(mflo2(), &sc->sc_lo[2]);
-                err |= __put_user(mfhi3(), &sc->sc_hi[3]);
-                err |= __put_user(mflo3(), &sc->sc_lo[3]);
-                err |= __put_user(rddsp(DSP_MASK), &sc->sc_dsp);
-        }
-#endif
 
         err |= __put_user(!!used_math(), &sc->sc_used_math);
 
@@ -92,7 +77,6 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
         current_thread_info()->restart_block.fn = do_no_restart_syscall;
 
         err |= __get_user(regs->cp0_epc, &sc->sc_pc);
-#ifdef CONFIG_32BIT
         err |= __get_user(regs->hi, &sc->sc_mdhi);
         err |= __get_user(regs->lo, &sc->sc_mdlo);
         if (cpu_has_dsp) {
@@ -104,20 +88,6 @@ restore_sigcontext(struct pt_regs *regs, struct sigcontext __user *sc)
                 err |= __get_user(treg, &sc->sc_lo3); mtlo3(treg);
                 err |= __get_user(treg, &sc->sc_dsp); wrdsp(treg, DSP_MASK);
         }
-#endif
-#ifdef CONFIG_64BIT
-        err |= __get_user(regs->hi, &sc->sc_hi[0]);
-        err |= __get_user(regs->lo, &sc->sc_lo[0]);
-        if (cpu_has_dsp) {
-                err |= __get_user(treg, &sc->sc_hi[1]); mthi1(treg);
-                err |= __get_user(treg, &sc->sc_lo[1]); mthi1(treg);
-                err |= __get_user(treg, &sc->sc_hi[2]); mthi2(treg);
-                err |= __get_user(treg, &sc->sc_lo[2]); mthi2(treg);
-                err |= __get_user(treg, &sc->sc_hi[3]); mthi3(treg);
-                err |= __get_user(treg, &sc->sc_lo[3]); mthi3(treg);
-                err |= __get_user(treg, &sc->sc_dsp); wrdsp(treg, DSP_MASK);
-        }
-#endif
 
 #define restore_gp_reg(i) do {                                          \
         err |= __get_user(regs->regs[i], &sc->sc_regs[i]);              \
diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c
index d42f358754ad..298f82fe8440 100644
--- a/arch/mips/kernel/smp.c
+++ b/arch/mips/kernel/smp.c
@@ -247,6 +247,9 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
         current_thread_info()->cpu = 0;
         smp_tune_scheduling();
         plat_prepare_cpus(max_cpus);
+#ifndef CONFIG_HOTPLUG_CPU
+        cpu_present_map = cpu_possible_map;
+#endif
 }
 
 /* preload SMP state for boot cpu */
@@ -442,7 +445,7 @@ static int __init topology_init(void)
         int cpu;
         int ret;
 
-        for_each_cpu(cpu) {
+        for_each_present_cpu(cpu) {
                 ret = register_cpu(&per_cpu(cpu_devices, cpu), cpu, NULL);
                 if (ret)
                         printk(KERN_WARNING "topology_init: register_cpu %d "
diff --git a/arch/mips/kernel/syscall.c b/arch/mips/kernel/syscall.c
index 2aeaa2fd4b32..5e8a18a8e2bd 100644
--- a/arch/mips/kernel/syscall.c
+++ b/arch/mips/kernel/syscall.c
@@ -276,31 +276,9 @@ void sys_set_thread_area(unsigned long addr)
 
 asmlinkage int _sys_sysmips(int cmd, long arg1, int arg2, int arg3)
 {
-        int     tmp, len;
-        char    __user *name;
+        int     tmp;
 
         switch(cmd) {
-        case SETNAME: {
-                char nodename[__NEW_UTS_LEN + 1];
-
-                if (!capable(CAP_SYS_ADMIN))
-                        return -EPERM;
-
-                name = (char __user *) arg1;
-
-                len = strncpy_from_user(nodename, name, __NEW_UTS_LEN);
-                if (len < 0)
-                        return -EFAULT;
-
-                down_write(&uts_sem);
-                strncpy(system_utsname.nodename, nodename, len);
-                nodename[__NEW_UTS_LEN] = '\0';
-                strlcpy(system_utsname.nodename, nodename,
-                        sizeof(system_utsname.nodename));
-                up_write(&uts_sem);
-                return 0;
-        }
-
         case MIPS_ATOMIC_SET:
                 printk(KERN_CRIT "How did I get here?\n");
                 return -EINVAL;
@@ -313,9 +291,6 @@ asmlinkage int _sys_sysmips(int cmd, long arg1, int arg2, int arg3)
         case FLUSH_CACHE:
                 __flush_cache_all();
                 return 0;
-
-        case MIPS_RDNVRAM:
-                return -EIO;
         }
 
         return -EINVAL;
diff --git a/arch/mips/kernel/traps.c b/arch/mips/kernel/traps.c
index 4901f0a37fca..a7564b08eb4d 100644
--- a/arch/mips/kernel/traps.c
+++ b/arch/mips/kernel/traps.c
@@ -819,15 +819,30 @@ asmlinkage void do_watch(struct pt_regs *regs)
 
 asmlinkage void do_mcheck(struct pt_regs *regs)
 {
+        const int field = 2 * sizeof(unsigned long);
+        int multi_match = regs->cp0_status & ST0_TS;
+
         show_regs(regs);
-        dump_tlb_all();
+
+        if (multi_match) {
+                printk("Index   : %0x\n", read_c0_index());
+                printk("Pagemask: %0x\n", read_c0_pagemask());
+                printk("EntryHi : %0*lx\n", field, read_c0_entryhi());
+                printk("EntryLo0: %0*lx\n", field, read_c0_entrylo0());
+                printk("EntryLo1: %0*lx\n", field, read_c0_entrylo1());
+                printk("\n");
+                dump_tlb_all();
+        }
+
+        show_code((unsigned int *) regs->cp0_epc);
+
         /*
          * Some chips may have other causes of machine check (e.g. SB1
          * graduation timer)
          */
         panic("Caught Machine Check exception - %scaused by multiple "
               "matching entries in the TLB.",
-              (regs->cp0_status & ST0_TS) ? "" : "not ");
+              (multi_match) ? "" : "not ");
 }
 
 asmlinkage void do_mt(struct pt_regs *regs)
@@ -902,6 +917,7 @@ static inline void parity_protection_init(void)
 {
         switch (current_cpu_data.cputype) {
         case CPU_24K:
+        case CPU_34K:
         case CPU_5KC:
                 write_c0_ecc(0x80000000);
                 back_to_back_c0_hazard();
diff --git a/arch/mips/kernel/vmlinux.lds.S b/arch/mips/kernel/vmlinux.lds.S
index 14fa00e3cdfa..b84d1f9ce28e 100644
--- a/arch/mips/kernel/vmlinux.lds.S
+++ b/arch/mips/kernel/vmlinux.lds.S
@@ -151,23 +151,13 @@ SECTIONS
 
   /* This is the MIPS specific mdebug section.  */
   .mdebug : { *(.mdebug) }
-  /* These are needed for ELF backends which have not yet been
-     converted to the new style linker.  */
-  .stab 0 : { *(.stab) }
-  .stabstr 0 : { *(.stabstr) }
-  /* DWARF debug sections.
-     Symbols in the .debug DWARF section are relative to the beginning of the
-     section so we begin .debug at 0.  It's not clear yet what needs to happen
-     for the others.   */
-  .debug          0 : { *(.debug) }
-  .debug_srcinfo  0 : { *(.debug_srcinfo) }
-  .debug_aranges  0 : { *(.debug_aranges) }
-  .debug_pubnames 0 : { *(.debug_pubnames) }
-  .debug_sfnames  0 : { *(.debug_sfnames) }
-  .line           0 : { *(.line) }
+
+  STABS_DEBUG
+
+  DWARF_DEBUG
+
   /* These must appear regardless of  .  */
   .gptab.sdata : { *(.gptab.data) *(.gptab.sdata) }
   .gptab.sbss : { *(.gptab.bss) *(.gptab.sbss) }
-  .comment : { *(.comment) }
   .note : { *(.note) }
 }