Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
  powerpc/signal32: Fix sigset_t conversion when copying to user
  powerpc: Fix atomic_xxx_return barrier semantics
  powerpc: Remove buggy 9-year-old test for binutils < 2.12.1
  powerpc/book3e-64: Fix debug support for userspace
  powerpc: Remove extraneous CONFIG_PPC_ADV_DEBUG_REGS define
  powerpc: Revert show_regs() define for readability
  powerpc/ps3: Fix SMP lockdep boot warning
  powerpc/ps3: Fix lost SMP IPIs
  powerpc: Add hvcall.h include to book3s_hv.c
  powerpc/trace: Add a dummy stack frame for trace_hardirqs_off
  powerpc: Copy down exception vectors after feature fixups
  powerpc: panic if we can't instantiate RTAS
  powerpc/4xx: Fix typos in kexec config dependencies
  powerpc/fsl: MCU_MPC8349EMITX wants I2C built-in, modular won't do...
  powerpc/fsl_udc_core: Fix dumb typo
  carma-fpga: Missed switch from of_register_platform_driver()
  powerpc: Fix build breakage in jump_label.c

10 files changed, 25 insertions, 32 deletions

diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S
index 56212bc0ab08..4f80cf1ce77b 100644
--- a/arch/powerpc/kernel/entry_32.S
+++ b/arch/powerpc/kernel/entry_32.S
@@ -215,7 +215,22 @@ reenable_mmu:				/* re-enable mmu so we can */
         stw     r9,8(r1)
         stw     r11,12(r1)
         stw     r3,ORIG_GPR3(r1)
+        /*
+         * The trace_hardirqs_off will use CALLER_ADDR0 and CALLER_ADDR1.
+         * If from user mode there is only one stack frame on the stack, and
+         * accessing CALLER_ADDR1 will cause oops. So we need create a dummy
+         * stack frame to make trace_hardirqs_off happy.
+         */
+        andi.   r12,r12,MSR_PR
+        beq     11f
+        stwu    r1,-16(r1)
+        bl      trace_hardirqs_off
+        addi    r1,r1,16
+        b       12f
+
+11:
         bl      trace_hardirqs_off
+12:
         lwz     r0,GPR0(r1)
         lwz     r3,ORIG_GPR3(r1)
         lwz     r4,GPR4(r1)
diff --git a/arch/powerpc/kernel/jump_label.c b/arch/powerpc/kernel/jump_label.c
index 368d158d665d..a1ed8a8c7cb4 100644
--- a/arch/powerpc/kernel/jump_label.c
+++ b/arch/powerpc/kernel/jump_label.c
@@ -11,6 +11,7 @@
 #include <linux/jump_label.h>
 #include <asm/code-patching.h>
 
+#ifdef HAVE_JUMP_LABEL
 void arch_jump_label_transform(struct jump_entry *entry,
                                enum jump_label_type type)
 {
@@ -21,3 +22,4 @@ void arch_jump_label_transform(struct jump_entry *entry,
         else
                 patch_instruction(addr, PPC_INST_NOP);
 }
+#endif
diff --git a/arch/powerpc/kernel/kvm.c b/arch/powerpc/kernel/kvm.c
index 35f27646c4ff..2985338d0e10 100644
--- a/arch/powerpc/kernel/kvm.c
+++ b/arch/powerpc/kernel/kvm.c
@@ -132,7 +132,6 @@ static void kvm_patch_ins_b(u32 *inst, int addr)
         /* On relocatable kernels interrupts handlers and our code
            can be in different regions, so we don't patch them */
 
-        extern u32 __end_interrupts;
         if ((ulong)inst < (ulong)&__end_interrupts)
                 return;
 #endif
diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S
index f7d760ab5ca1..7cd07b42ca1a 100644
--- a/arch/powerpc/kernel/misc_32.S
+++ b/arch/powerpc/kernel/misc_32.S
@@ -738,7 +738,7 @@ relocate_new_kernel:
         mr      r5, r31
 
         li      r0, 0
-#elif defined(CONFIG_44x)  && !defined(CONFIG_47x)
+#elif defined(CONFIG_44x)  && !defined(CONFIG_PPC_47x)
 
 /*
  * Code for setting up 1:1 mapping for PPC440x for KEXEC
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 9054ca9ab4f9..6457574c0b2f 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -486,28 +486,6 @@ struct task_struct *__switch_to(struct task_struct *prev,
         new_thread = &new->thread;
         old_thread = &current->thread;
 
-#if defined(CONFIG_PPC_BOOK3E_64)
-        /* XXX Current Book3E code doesn't deal with kernel side DBCR0,
-         * we always hold the user values, so we set it now.
-         *
-         * However, we ensure the kernel MSR:DE is appropriately cleared too
-         * to avoid spurrious single step exceptions in the kernel.
-         *
-         * This will have to change to merge with the ppc32 code at some point,
-         * but I don't like much what ppc32 is doing today so there's some
-         * thinking needed there
-         */
-        if ((new_thread->dbcr0 | old_thread->dbcr0) & DBCR0_IDM) {
-                u32 dbcr0;
-
-                mtmsr(mfmsr() & ~MSR_DE);
-                isync();
-                dbcr0 = mfspr(SPRN_DBCR0);
-                dbcr0 = (dbcr0 & DBCR0_EDM) | new_thread->dbcr0;
-                mtspr(SPRN_DBCR0, dbcr0);
-        }
-#endif /* CONFIG_PPC64_BOOK3E */
-
 #ifdef CONFIG_PPC64
         /*
          * Collect processor utilization data per process
@@ -657,7 +635,7 @@ void show_regs(struct pt_regs * regs)
         if ((regs->trap != 0xc00) && cpu_has_feature(CPU_FTR_CFAR))
                 printk("CFAR: "REG"\n", regs->orig_gpr3);
         if (trap == 0x300 || trap == 0x600)
-#ifdef CONFIG_PPC_ADV_DEBUG_REGS
+#if defined(CONFIG_4xx) || defined(CONFIG_BOOKE)
                 printk("DEAR: "REG", ESR: "REG"\n", regs->dar, regs->dsisr);
 #else
                 printk("DAR: "REG", DSISR: %08lx\n", regs->dar, regs->dsisr);
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index b4fa66127495..cc584865b3df 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -1579,10 +1579,8 @@ static void __init prom_instantiate_rtas(void)
                 return;
 
         base = alloc_down(size, PAGE_SIZE, 0);
-        if (base == 0) {
-                prom_printf("RTAS allocation failed !\n");
-                return;
-        }
+        if (base == 0)
+                prom_panic("Could not allocate memory for RTAS\n");
 
         rtas_inst = call_prom("open", 1, 1, ADDR("/rtas"));
         if (!IHANDLE_VALID(rtas_inst)) {
diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
index c1ce86357ecb..ac7610815113 100644
--- a/arch/powerpc/kernel/setup_32.c
+++ b/arch/powerpc/kernel/setup_32.c
@@ -107,6 +107,8 @@ notrace unsigned long __init early_init(unsigned long dt_ptr)
                          PTRRELOC(&__start___lwsync_fixup),
                          PTRRELOC(&__stop___lwsync_fixup));
 
+        do_final_fixups();
+
         return KERNELBASE + offset;
 }
 
diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index 1a9dea80a69b..fb9bb46e7e88 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -359,6 +359,7 @@ void __init setup_system(void)
                           &__start___fw_ftr_fixup, &__stop___fw_ftr_fixup);
         do_lwsync_fixups(cur_cpu_spec->cpu_features,
                          &__start___lwsync_fixup, &__stop___lwsync_fixup);
+        do_final_fixups();
 
         /*
          * Unflatten the device-tree passed by prom_init or kexec
diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index 78b76dc54dfb..836a5a19eb2c 100644
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -97,7 +97,7 @@ static inline int put_sigset_t(compat_sigset_t __user *uset, sigset_t *set)
         compat_sigset_t cset;
 
         switch (_NSIG_WORDS) {
-        case 4: cset.sig[5] = set->sig[3] & 0xffffffffull;
+        case 4: cset.sig[6] = set->sig[3] & 0xffffffffull;
                 cset.sig[7] = set->sig[3] >> 32;
         case 3: cset.sig[4] = set->sig[2] & 0xffffffffull;
                 cset.sig[5] = set->sig[2] >> 32;
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index 4e5908264d1a..5459d148a0f6 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -1298,14 +1298,12 @@ void __kprobes DebugException(struct pt_regs *regs, unsigned long debug_status)
 
                 if (user_mode(regs)) {
                         current->thread.dbcr0 &= ~DBCR0_IC;
-#ifdef CONFIG_PPC_ADV_DEBUG_REGS
                         if (DBCR_ACTIVE_EVENTS(current->thread.dbcr0,
                                                current->thread.dbcr1))
                                 regs->msr |= MSR_DE;
                         else
                                 /* Make sure the IDM bit is off */
                                 current->thread.dbcr0 &= ~DBCR0_IDM;
-#endif
                 }
 
                 _exception(SIGTRAP, regs, TRAP_TRACE, regs->nip);