Merge branch 'master' into 83xx

arch/powerpc/Kconfig

@@ -436,6 +436,21 @@ config PPC_MPC52xx
 	bool
 	default n
 
+config PPC_MPC5200
+	bool
+	select PPC_MPC52xx
+	default n
+
+config PPC_MPC5200_BUGFIX
+	bool "MPC5200 (L25R) bugfix support"
+	depends on PPC_MPC5200
+	default n
+	help
+	  Enable workarounds for original MPC5200 errata.  This is not required
+	  for MPC5200B based boards.
+
+	  It is safe to say 'Y' here
+
 config PPC_EFIKA
 	bool "bPlan Efika 5k2. MPC5200B based computer"
 	depends on PPC_MULTIPLATFORM && PPC32
@@ -448,7 +463,7 @@ config PPC_EFIKA
 config PPC_LITE5200
 	bool "Freescale Lite5200 Eval Board"
 	depends on PPC_MULTIPLATFORM && PPC32
-	select PPC_MPC52xx
+	select PPC_MPC5200
 	default n
 
 config PPC_PMAC
@@ -1206,7 +1221,7 @@ source "arch/powerpc/oprofile/Kconfig"
 
 config KPROBES
 	bool "Kprobes (EXPERIMENTAL)"
-	depends on PPC64 && KALLSYMS && EXPERIMENTAL && MODULES
+	depends on !BOOKE && !4xx && KALLSYMS && EXPERIMENTAL && MODULES
 	help
 	  Kprobes allows you to trap at almost any kernel address and
 	  execute a callback function.  register_kprobe() establishes

arch/powerpc/kernel/irq.c

@@ -281,10 +281,10 @@ void do_IRQ(struct pt_regs *regs)
 
 	/*
 	 * Every platform is required to implement ppc_md.get_irq.
-	 * This function will either return an irq number or -1 to
+	 * This function will either return an irq number or NO_IRQ to
 	 * indicate there are no more pending.
-	 * The value -2 is for buggy hardware and means that this IRQ
-	 * has already been handled. -- Tom
+	 * The value NO_IRQ_IGNORE is for buggy hardware and means that this
+	 * IRQ has already been handled. -- Tom
 	 */
 	irq = ppc_md.get_irq();
 

arch/powerpc/kernel/kprobes.c

@@ -46,8 +46,8 @@ int __kprobes arch_prepare_kprobe(struct kprobe *p)
 	if ((unsigned long)p->addr & 0x03) {
 		printk("Attempt to register kprobe at an unaligned address\n");
 		ret = -EINVAL;
-	} else if (IS_MTMSRD(insn) || IS_RFID(insn)) {
-		printk("Cannot register a kprobe on rfid or mtmsrd\n");
+	} else if (IS_MTMSRD(insn) || IS_RFID(insn) || IS_RFI(insn)) {
+		printk("Cannot register a kprobe on rfi/rfid or mtmsr[d]\n");
 		ret = -EINVAL;
 	}
 
@@ -483,8 +483,12 @@ int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)
 	memcpy(&kcb->jprobe_saved_regs, regs, sizeof(struct pt_regs));
 
 	/* setup return addr to the jprobe handler routine */
+#ifdef CONFIG_PPC64
 	regs->nip = (unsigned long)(((func_descr_t *)jp->entry)->entry);
 	regs->gpr[2] = (unsigned long)(((func_descr_t *)jp->entry)->toc);
+#else
+	regs->nip = (unsigned long)jp->entry;
+#endif
 
 	return 1;
 }

arch/powerpc/kernel/lparcfg.c

@@ -439,6 +439,10 @@ static ssize_t lparcfg_write(struct file *file, const char __user * buf,
 
 	ssize_t retval = -ENOMEM;
 
+	if (!firmware_has_feature(FW_FEATURE_SPLPAR) ||
+			firmware_has_feature(FW_FEATURE_ISERIES))
+		return -EINVAL;
+
 	kbuf = kmalloc(count, GFP_KERNEL);
 	if (!kbuf)
 		goto out;
@@ -517,7 +521,7 @@ static int pseries_lparcfg_data(struct seq_file *m, void *v)
 static ssize_t lparcfg_write(struct file *file, const char __user * buf,
 			     size_t count, loff_t * off)
 {
-	return count;
+	return -EINVAL;
 }
 
 #endif				/* CONFIG_PPC_PSERIES */
@@ -570,6 +574,7 @@ static int lparcfg_open(struct inode *inode, struct file *file)
 struct file_operations lparcfg_fops = {
 	.owner		= THIS_MODULE,
 	.read		= seq_read,
+	.write		= lparcfg_write,
 	.open		= lparcfg_open,
 	.release	= single_release,
 };
@@ -581,10 +586,8 @@ int __init lparcfg_init(void)
 
 	/* Allow writing if we have FW_FEATURE_SPLPAR */
 	if (firmware_has_feature(FW_FEATURE_SPLPAR) &&
-			!firmware_has_feature(FW_FEATURE_ISERIES)) {
-		lparcfg_fops.write = lparcfg_write;
+			!firmware_has_feature(FW_FEATURE_ISERIES))
 		mode |= S_IWUSR;
-	}
 
 	ent = create_proc_entry("ppc64/lparcfg", mode, NULL);
 	if (ent) {

arch/powerpc/kernel/setup_32.c

@@ -65,6 +65,7 @@ int have_of = 1;
 
 #ifdef CONFIG_VGA_CONSOLE
 unsigned long vgacon_remap_base;
+EXPORT_SYMBOL(vgacon_remap_base);
 #endif
 
 /*

arch/powerpc/kernel/traps.c

@@ -535,34 +535,40 @@ static void emulate_single_step(struct pt_regs *regs)
 	}
 }
 
-static void parse_fpe(struct pt_regs *regs)
+static inline int __parse_fpscr(unsigned long fpscr)
 {
-	int code = 0;
-	unsigned long fpscr;
-
-	flush_fp_to_thread(current);
-
-	fpscr = current->thread.fpscr.val;
+	int ret = 0;
 
 	/* Invalid operation */
 	if ((fpscr & FPSCR_VE) && (fpscr & FPSCR_VX))
-		code = FPE_FLTINV;
+		ret = FPE_FLTINV;
 
 	/* Overflow */
 	else if ((fpscr & FPSCR_OE) && (fpscr & FPSCR_OX))
-		code = FPE_FLTOVF;
+		ret = FPE_FLTOVF;
 
 	/* Underflow */
 	else if ((fpscr & FPSCR_UE) && (fpscr & FPSCR_UX))
-		code = FPE_FLTUND;
+		ret = FPE_FLTUND;
 
 	/* Divide by zero */
 	else if ((fpscr & FPSCR_ZE) && (fpscr & FPSCR_ZX))
-		code = FPE_FLTDIV;
+		ret = FPE_FLTDIV;
 
 	/* Inexact result */
 	else if ((fpscr & FPSCR_XE) && (fpscr & FPSCR_XX))
-		code = FPE_FLTRES;
+		ret = FPE_FLTRES;
+
+	return ret;
+}
+
+static void parse_fpe(struct pt_regs *regs)
+{
+	int code = 0;
+
+	flush_fp_to_thread(current);
+
+	code = __parse_fpscr(current->thread.fpscr.val);
 
 	_exception(SIGFPE, regs, code, regs->nip);
 }
@@ -739,20 +745,7 @@ void __kprobes program_check_exception(struct pt_regs *regs)
 	extern int do_mathemu(struct pt_regs *regs);
 
 	/* We can now get here via a FP Unavailable exception if the core
-	 * has no FPU, in that case no reason flags will be set */
-#ifdef CONFIG_MATH_EMULATION
-	/* (reason & REASON_ILLEGAL) would be the obvious thing here,
-	 * but there seems to be a hardware bug on the 405GP (RevD)
-	 * that means ESR is sometimes set incorrectly - either to
-	 * ESR_DST (!?) or 0.  In the process of chasing this with the
-	 * hardware people - not sure if it can happen on any illegal
-	 * instruction or only on FP instructions, whether there is a
-	 * pattern to occurences etc. -dgibson 31/Mar/2003 */
-	if (!(reason & REASON_TRAP) && do_mathemu(regs) == 0) {
-		emulate_single_step(regs);
-		return;
-	}
-#endif /* CONFIG_MATH_EMULATION */
+	 * has no FPU, in that case the reason flags will be 0 */
 
 	if (reason & REASON_FP) {
 		/* IEEE FP exception */
@@ -778,6 +771,31 @@ void __kprobes program_check_exception(struct pt_regs *regs)
 
 	local_irq_enable();
 
+#ifdef CONFIG_MATH_EMULATION
+	/* (reason & REASON_ILLEGAL) would be the obvious thing here,
+	 * but there seems to be a hardware bug on the 405GP (RevD)
+	 * that means ESR is sometimes set incorrectly - either to
+	 * ESR_DST (!?) or 0.  In the process of chasing this with the
+	 * hardware people - not sure if it can happen on any illegal
+	 * instruction or only on FP instructions, whether there is a
+	 * pattern to occurences etc. -dgibson 31/Mar/2003 */
+	switch (do_mathemu(regs)) {
+	case 0:
+		emulate_single_step(regs);
+		return;
+	case 1: {
+			int code = 0;
+			code = __parse_fpscr(current->thread.fpscr.val);
+			_exception(SIGFPE, regs, code, regs->nip);
+			return;
+		}
+	case -EFAULT:
+		_exception(SIGSEGV, regs, SEGV_MAPERR, regs->nip);
+		return;
+	}
+	/* fall through on any other errors */
+#endif /* CONFIG_MATH_EMULATION */
+
 	/* Try to emulate it if we should. */
 	if (reason & (REASON_ILLEGAL | REASON_PRIVILEGED)) {
 		switch (emulate_instruction(regs)) {
@@ -891,18 +909,39 @@ void SoftwareEmulation(struct pt_regs *regs)
 
 #ifdef CONFIG_MATH_EMULATION
 	errcode = do_mathemu(regs);
+
+	switch (errcode) {
+	case 0:
+		emulate_single_step(regs);
+		return;
+	case 1: {
+			int code = 0;
+			code = __parse_fpscr(current->thread.fpscr.val);
+			_exception(SIGFPE, regs, code, regs->nip);
+			return;
+		}
+	case -EFAULT:
+		_exception(SIGSEGV, regs, SEGV_MAPERR, regs->nip);
+		return;
+	default:
+		_exception(SIGILL, regs, ILL_ILLOPC, regs->nip);
+		return;
+	}
+
 #else
 	errcode = Soft_emulate_8xx(regs);
-#endif
-	if (errcode) {
-		if (errcode > 0)
-			_exception(SIGFPE, regs, 0, 0);
-		else if (errcode == -EFAULT)
-			_exception(SIGSEGV, regs, 0, 0);
-		else
-			_exception(SIGILL, regs, ILL_ILLOPC, regs->nip);
-	} else
+	switch (errcode) {
+	case 0:
 		emulate_single_step(regs);
+		return;
+	case 1:
+		_exception(SIGILL, regs, ILL_ILLOPC, regs->nip);
+		return;
+	case -EFAULT:
+		_exception(SIGSEGV, regs, SEGV_MAPERR, regs->nip);
+		return;
+	}
+#endif
 }
 #endif /* CONFIG_8xx */
 

arch/powerpc/lib/Makefile

@@ -16,11 +16,11 @@ obj-$(CONFIG_PPC64)	+= checksum_64.o copypage_64.o copyuser_64.o \
 			   strcase.o
 obj-$(CONFIG_QUICC_ENGINE) += rheap.o
 obj-$(CONFIG_XMON)	+= sstep.o
+obj-$(CONFIG_KPROBES)	+= sstep.o
 obj-$(CONFIG_NOT_COHERENT_CACHE)	+= dma-noncoherent.o
 
 ifeq ($(CONFIG_PPC64),y)
 obj-$(CONFIG_SMP)	+= locks.o
-obj-$(CONFIG_DEBUG_KERNEL) += sstep.o
 endif
 
 # Temporary hack until we have migrated to asm-powerpc

arch/powerpc/lib/rheap.c

@@ -14,6 +14,7 @@
  */
 #include <linux/types.h>
 #include <linux/errno.h>
+#include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/slab.h>
 
@@ -671,7 +672,7 @@ void rh_dump(rh_info_t * info)
 	int maxnr;
 	int i, nr;
 
-	maxnr = sizeof(st) / sizeof(st[0]);
+	maxnr = ARRAY_SIZE(st);
 
 	printk(KERN_INFO
 	       "info @0x%p (%d slots empty / %d max)\n",

arch/powerpc/mm/mem.c

@@ -61,10 +61,6 @@ unsigned long memory_limit;
 extern void hash_preload(struct mm_struct *mm, unsigned long ea,
 			 unsigned long access, unsigned long trap);
 
-/*
- * This is called by /dev/mem to know if a given address has to
- * be mapped non-cacheable or not
- */
 int page_is_ram(unsigned long pfn)
 {
 	unsigned long paddr = (pfn << PAGE_SHIFT);

arch/powerpc/platforms/52xx/Makefile

@@ -3,6 +3,7 @@
 #
 ifeq ($(CONFIG_PPC_MERGE),y)
 obj-y				+= mpc52xx_pic.o mpc52xx_common.o
+obj-$(CONFIG_PCI)		+= mpc52xx_pci.o
 endif
 
 obj-$(CONFIG_PPC_EFIKA)		+= efika-setup.o efika-pci.o

arch/powerpc/platforms/52xx/lite5200.c

@@ -107,6 +107,12 @@ static void __init lite52xx_setup_arch(void)
 	mpc52xx_setup_cpu();	/* Generic */
 	lite52xx_setup_cpu();	/* Platorm specific */
 
+#ifdef CONFIG_PCI
+	np = of_find_node_by_type(np, "pci");
+	if (np)
+		mpc52xx_add_bridge(np);
+#endif
+
 #ifdef CONFIG_BLK_DEV_INITRD
 	if (initrd_start)
 		ROOT_DEV = Root_RAM0;

arch/powerpc/platforms/pseries/firmware.c

@@ -59,6 +59,7 @@ firmware_features_table[FIRMWARE_MAX_FEATURES] = {
 	{FW_FEATURE_XDABR,		"hcall-xdabr"},
 	{FW_FEATURE_MULTITCE,		"hcall-multi-tce"},
 	{FW_FEATURE_SPLPAR,		"hcall-splpar"},
+	{FW_FEATURE_BULK_REMOVE,	"hcall-bulk"},
 };
 
 /* Build up the firmware features bitmask using the contents of

arch/powerpc/platforms/pseries/lpar.c

@@ -516,7 +516,7 @@ static void pSeries_lpar_hpte_invalidate(unsigned long slot, unsigned long va,
 static void pSeries_lpar_flush_hash_range(unsigned long number, int local)
 {
 	unsigned long i, pix, rc;
-	unsigned long flags;
+	unsigned long flags = 0;
 	struct ppc64_tlb_batch *batch = &__get_cpu_var(ppc64_tlb_batch);
 	int lock_tlbie = !cpu_has_feature(CPU_FTR_LOCKLESS_TLBIE);
 	unsigned long param[9];
@@ -540,16 +540,22 @@ static void pSeries_lpar_flush_hash_range(unsigned long number, int local)
 				hash = ~hash;
 			slot = (hash & htab_hash_mask) * HPTES_PER_GROUP;
 			slot += hidx & _PTEIDX_GROUP_IX;
-			param[pix] = HBR_REQUEST | HBR_AVPN | slot;
-			param[pix+1] = hpte_encode_v(va, psize) & HPTE_V_AVPN;
-			pix += 2;
-			if (pix == 8) {
-				rc = plpar_hcall9(H_BULK_REMOVE, param,
+			if (!firmware_has_feature(FW_FEATURE_BULK_REMOVE)) {
+				pSeries_lpar_hpte_invalidate(slot, va, psize,
+							     local);
+			} else {
+				param[pix] = HBR_REQUEST | HBR_AVPN | slot;
+				param[pix+1] = hpte_encode_v(va, psize) &
+					HPTE_V_AVPN;
+				pix += 2;
+				if (pix == 8) {
+					rc = plpar_hcall9(H_BULK_REMOVE, param,
 						param[0], param[1], param[2],
 						param[3], param[4], param[5],
 						param[6], param[7]);
-				BUG_ON(rc != H_SUCCESS);
-				pix = 0;
+					BUG_ON(rc != H_SUCCESS);
+					pix = 0;
+				}
 			}
 		} pte_iterate_hashed_end();
 	}

arch/powerpc/xmon/ppc-opc.c

@@ -21,6 +21,7 @@
    02110-1301, USA.  */
 
 #include <linux/stddef.h>
+#include <linux/kernel.h>
 #include "nonstdio.h"
 #include "ppc.h"
 
@@ -4932,8 +4933,7 @@ const struct powerpc_opcode powerpc_opcodes[] = {
 
 };
 
-const int powerpc_num_opcodes =
-  sizeof (powerpc_opcodes) / sizeof (powerpc_opcodes[0]);
+const int powerpc_num_opcodes = ARRAY_SIZE(powerpc_opcodes);
 
 /* The macro table.  This is only used by the assembler.  */
 
@@ -4989,5 +4989,4 @@ const struct powerpc_macro powerpc_macros[] = {
 { "clrlslwi.",4,  PPCCOM,	"rlwinm. %0,%1,%3,(%2)-(%3),31-(%3)" },
 };
 
-const int powerpc_num_macros =
-  sizeof (powerpc_macros) / sizeof (powerpc_macros[0]);
+const int powerpc_num_macros = ARRAY_SIZE(powerpc_macros);

arch/powerpc/xmon/spu-opc.c

@@ -18,6 +18,7 @@
    with this program; if not, write to the Free Software Foundation, Inc.,
    51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA.  */
 
+#include <linux/kernel.h>
 #include "spu.h"
 
 /* This file holds the Spu opcode table */
@@ -40,5 +41,4 @@ const struct spu_opcode spu_opcodes[] = {
 #undef APUOPFB
 };
 
-const int spu_num_opcodes =
-  sizeof (spu_opcodes) / sizeof (spu_opcodes[0]);
+const int spu_num_opcodes = ARRAY_SIZE(spu_opcodes);

arch/ppc/8xx_io/cs4218_tdm.c

@@ -1379,7 +1379,6 @@ static void cs_nosound(unsigned long xx)
 }
 
 static DEFINE_TIMER(beep_timer, cs_nosound, 0, 0);
-};
 
 static void cs_mksound(unsigned int hz, unsigned int ticks)
 {

arch/ppc/lib/rheap.c

@@ -14,6 +14,7 @@
  */
 #include <linux/types.h>
 #include <linux/errno.h>
+#include <linux/kernel.h>
 #include <linux/mm.h>
 #include <linux/slab.h>
 
@@ -654,7 +655,7 @@ void rh_dump(rh_info_t * info)
 	int maxnr;
 	int i, nr;
 
-	maxnr = sizeof(st) / sizeof(st[0]);
+	maxnr = ARRAY_SIZE(st);
 
 	printk(KERN_INFO
 	       "info @0x%p (%d slots empty / %d max)\n",

arch/ppc/syslib/m8260_pci_erratum9.c

@@ -105,7 +105,8 @@ void idma_pci9_init(void)
 	idma_reg[IDMA_CHAN].idmr = 0;		/* mask all IDMA interrupts */
 	idma_reg[IDMA_CHAN].idsr = 0xff;	/* clear all event flags */
 
-	printk("<4>Using IDMA%d for MPC8260 device erratum PCI 9 workaround\n",
+	printk(KERN_WARNING
+		"Using IDMA%d for MPC8260 device erratum PCI 9 workaround\n",
 		IDMA_CHAN + 1);
 
 	return;

arch/ppc/syslib/m8xx_setup.c

@@ -77,7 +77,7 @@ static struct mtd_partition mpc8xxads_partitions[] = {
 	}
 };
 
-#define mpc8xxads_part_num (sizeof (mpc8xxads_partitions) / sizeof (mpc8xxads_partitions[0]))
+#define mpc8xxads_part_num ARRAY_SIZE(mpc8xxads_partitions)
 
 #endif
 

arch/ppc/xmon/ppc-opc.c

@@ -19,6 +19,7 @@ along with this file; see the file COPYING.  If not, write to the Free
 Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
 
 #include <linux/posix_types.h>
+#include <linux/kernel.h>
 #include "ansidecl.h"
 #include "ppc.h"
 
@@ -2669,8 +2670,7 @@ const struct powerpc_opcode powerpc_opcodes[] = {
 
 };
 
-const int powerpc_num_opcodes =
-  sizeof (powerpc_opcodes) / sizeof (powerpc_opcodes[0]);
+const int powerpc_num_opcodes = ARRAY_SIZE(powerpc_opcodes);
 
 /* The macro table.  This is only used by the assembler.  */
 
@@ -2717,5 +2717,4 @@ const struct powerpc_macro powerpc_macros[] = {
 
 };
 
-const int powerpc_num_macros =
-  sizeof (powerpc_macros) / sizeof (powerpc_macros[0]);
+const int powerpc_num_macros = ARRAY_SIZE(powerpc_macros);

drivers/char/watchdog/booke_wdt.c

@@ -35,7 +35,7 @@
 #ifdef	CONFIG_FSL_BOOKE
 #define WDT_PERIOD_DEFAULT 63	/* Ex. wdt_period=28 bus=333Mhz , reset=~40sec */
 #else
-#define WDT_PERIOD_DEFAULT 4	/* Refer to the PPC40x and PPC4xx manuals */
+#define WDT_PERIOD_DEFAULT 3	/* Refer to the PPC40x and PPC4xx manuals */
 #endif				/* for timing information */
 
 u32 booke_wdt_enabled = 0;
@@ -47,6 +47,14 @@ u32 booke_wdt_period = WDT_PERIOD_DEFAULT;
 #define WDTP(x)		(TCR_WP(x))
 #endif
 
+/*
+ * booke_wdt_ping:
+ */
+static __inline__ void booke_wdt_ping(void)
+{
+	mtspr(SPRN_TSR, TSR_ENW|TSR_WIS);
+}
+
 /*
  * booke_wdt_enable:
  */
@@ -54,20 +62,14 @@ static __inline__ void booke_wdt_enable(void)
 {
 	u32 val;
 
+	/* clear status before enabling watchdog */
+	booke_wdt_ping();
 	val = mfspr(SPRN_TCR);
 	val |= (TCR_WIE|TCR_WRC(WRC_CHIP)|WDTP(booke_wdt_period));
 
 	mtspr(SPRN_TCR, val);
 }
 
-/*
- * booke_wdt_ping:
- */
-static __inline__ void booke_wdt_ping(void)
-{
-	mtspr(SPRN_TSR, TSR_ENW|TSR_WIS);
-}
-
 /*
  * booke_wdt_write:
  */

drivers/macintosh/windfarm_core.c

@@ -94,8 +94,6 @@ static int wf_thread_func(void *data)
 	DBG("wf: thread started\n");
 
 	while(!kthread_should_stop()) {
-		try_to_freeze();
-
 		if (time_after_eq(jiffies, next)) {
 			wf_notify(WF_EVENT_TICK, NULL);
 			if (wf_overtemp) {
@@ -118,8 +116,8 @@ static int wf_thread_func(void *data)
 		if (delay <= HZ)
 			schedule_timeout_interruptible(delay);
 
-		/* there should be no signal, but oh well */
-		if (signal_pending(current)) {
+		/* there should be no non-suspend signal, but oh well */
+		if (signal_pending(current) && !try_to_freeze()) {
 			printk(KERN_WARNING "windfarm: thread got sigl !\n");
 			break;
 		}

include/asm-powerpc/firmware.h

@@ -44,6 +44,7 @@
 #define FW_FEATURE_LPAR		ASM_CONST(0x0000000000400000)
 #define FW_FEATURE_PS3_LV1	ASM_CONST(0x0000000000800000)
 #define FW_FEATURE_BEAT		ASM_CONST(0x0000000001000000)
+#define FW_FEATURE_BULK_REMOVE	ASM_CONST(0x0000000002000000)
 
 #ifndef __ASSEMBLY__
 

include/asm-powerpc/kprobes.h

@@ -44,6 +44,7 @@ typedef unsigned int kprobe_opcode_t;
 #define IS_TDI(instr)		(((instr) & 0xfc000000) == 0x08000000)
 #define IS_TWI(instr)		(((instr) & 0xfc000000) == 0x0c000000)
 
+#ifdef CONFIG_PPC64
 /*
  * 64bit powerpc uses function descriptors.
  * Handle cases where:
@@ -67,9 +68,13 @@ typedef unsigned int kprobe_opcode_t;
 }
 
 #define JPROBE_ENTRY(pentry)	(kprobe_opcode_t *)((func_descr_t *)pentry)
-
 #define is_trap(instr)	(IS_TW(instr) || IS_TD(instr) || \
 			IS_TWI(instr) || IS_TDI(instr))
+#else
+/* Use stock kprobe_lookup_name since ppc32 doesn't use function descriptors */
+#define JPROBE_ENTRY(pentry)	(kprobe_opcode_t *)(pentry)
+#define is_trap(instr)	(IS_TW(instr) || IS_TWI(instr))
+#endif
 
 #define ARCH_SUPPORTS_KRETPROBES
 #define  ARCH_INACTIVE_KPROBE_COUNT 1

include/asm-powerpc/mpc52xx.h

@@ -249,6 +249,8 @@ extern void mpc52xx_declare_of_platform_devices(void);
 extern void mpc52xx_init_irq(void);
 extern unsigned int mpc52xx_get_irq(void);
 
+extern int __init mpc52xx_add_bridge(struct device_node *node);
+
 #endif /* __ASSEMBLY__ */
 
 #endif /* __ASM_POWERPC_MPC52xx_H__ */

include/asm-powerpc/sstep.h

@@ -21,6 +21,7 @@ struct pt_regs;
  */
 #define IS_MTMSRD(instr)	(((instr) & 0xfc0007be) == 0x7c000124)
 #define IS_RFID(instr)		(((instr) & 0xfc0007fe) == 0x4c000024)
+#define IS_RFI(instr)		(((instr) & 0xfc0007fe) == 0x4c000064)
 
 /* Emulate instructions that cause a transfer of control. */
 extern int emulate_step(struct pt_regs *regs, unsigned int instr);