Merge git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc-merge

arch/powerpc/Kconfig

@@ -71,15 +71,39 @@ config ARCH_MAY_HAVE_PC_FDC
 	bool
 	default y
 
+config PPC_OF
+	def_bool y
+
+config PPC_UDBG_16550
+	bool
+	default n
+
+config CRASH_DUMP
+	bool "kernel crash dumps (EXPERIMENTAL)"
+	depends on PPC_MULTIPLATFORM
+	depends on EXPERIMENTAL
+	help
+	  Build a kernel suitable for use as a kdump capture kernel.
+	  The kernel will be linked at a different address than normal, and
+	  so can only be used for Kdump.
+
+	  Don't change this unless you know what you are doing.
+
+config GENERIC_TBSYNC
+	bool
+	default y if PPC32 && SMP
+	default n
+
 menu "Processor support"
 choice
 	prompt "Processor Type"
 	depends on PPC32
 	default 6xx
 
-config 6xx
+config CLASSIC32
 	bool "6xx/7xx/74xx"
 	select PPC_FPU
+	select 6xx
 	help
 	  There are four families of PowerPC chips supported.  The more common
 	  types (601, 603, 604, 740, 750, 7400), the Motorola embedded
@@ -93,12 +117,20 @@ config 6xx
 
 config PPC_52xx
 	bool "Freescale 52xx"
+	select 6xx
+	select PPC_FPU
 	
 config PPC_82xx
 	bool "Freescale 82xx"
+	select 6xx
+	select PPC_FPU
 
 config PPC_83xx
 	bool "Freescale 83xx"
+	select 6xx
+	select FSL_SOC
+	select 83xx
+	select PPC_FPU
 
 config 40x
 	bool "AMCC 40x"
@@ -134,6 +166,13 @@ config POWER4
 	depends on PPC64
 	def_bool y
 
+config 6xx
+	bool
+
+# this is temp to handle compat with arch=ppc
+config 83xx
+	bool
+
 config PPC_FPU
 	bool
 	default y if PPC64
@@ -166,7 +205,7 @@ config PHYS_64BIT
 
 config ALTIVEC
 	bool "AltiVec Support"
-	depends on 6xx || POWER4
+	depends on CLASSIC32 || POWER4
 	---help---
 	  This option enables kernel support for the Altivec extensions to the
 	  PowerPC processor. The kernel currently supports saving and restoring
@@ -239,7 +278,7 @@ endmenu
 source "init/Kconfig"
 
 menu "Platform support"
-	depends on PPC64 || 6xx
+	depends on PPC64 || CLASSIC32
 
 choice
 	prompt "Machine type"
@@ -330,9 +369,6 @@ config PPC_CELL
 	select MMIO_NVRAM
 	select PPC_UDBG_16550
 
-config PPC_OF
-	def_bool y
-
 config XICS
 	depends on PPC_PSERIES
 	bool
@@ -375,26 +411,11 @@ config MPIC_BROKEN_U3
 	depends on PPC_MAPLE
 	default y
 
-config PPC_UDBG_16550
-	bool
-	default n
-
 config CELL_IIC
 	depends on PPC_CELL
 	bool
 	default y
 
-config CRASH_DUMP
-	bool "kernel crash dumps (EXPERIMENTAL)"
-	depends on PPC_MULTIPLATFORM
-	depends on EXPERIMENTAL
-	help
-	  Build a kernel suitable for use as a kdump capture kernel.
-	  The kernel will be linked at a different address than normal, and
-	  so can only be used for Kdump.
-
-	  Don't change this unless you know what you are doing.
-
 config IBMVIO
 	depends on PPC_PSERIES || PPC_ISERIES
 	bool
@@ -410,11 +431,6 @@ config PPC_MPC106
 	bool
 	default n
 
-config GENERIC_TBSYNC
-	bool
-	default y if PPC32 && SMP
-	default n
-
 source "drivers/cpufreq/Kconfig"
 
 config CPU_FREQ_PMAC
@@ -495,6 +511,7 @@ endmenu
 
 source arch/powerpc/platforms/embedded6xx/Kconfig
 source arch/powerpc/platforms/4xx/Kconfig
+source arch/powerpc/platforms/83xx/Kconfig
 source arch/powerpc/platforms/85xx/Kconfig
 source arch/powerpc/platforms/8xx/Kconfig
 source arch/powerpc/platforms/cell/Kconfig
@@ -718,7 +735,7 @@ config PPC_I8259
 config PPC_INDIRECT_PCI
 	bool
 	depends on PCI
-	default y if 40x || 44x || 85xx || 83xx
+	default y if 40x || 44x || 85xx
 	default n
 
 config EISA
@@ -727,13 +744,16 @@ config EISA
 config SBUS
 	bool
 
+config FSL_SOC
+	bool
+
 # Yes MCA RS/6000s exist but Linux-PPC does not currently support any
 config MCA
 	bool
 
 config PCI
-	bool "PCI support" if 40x || CPM2 || 83xx || 85xx || PPC_MPC52xx || (EMBEDDED && PPC_ISERIES)
+	bool "PCI support" if 40x || CPM2 || PPC_83xx || 85xx || PPC_MPC52xx || (EMBEDDED && PPC_ISERIES)
-	default y if !40x && !CPM2 && !8xx && !APUS && !83xx && !85xx
+	default y if !40x && !CPM2 && !8xx && !APUS && !PPC_83xx && !85xx
 	default PCI_PERMEDIA if !4xx && !CPM2 && !8xx && APUS
 	default PCI_QSPAN if !4xx && !CPM2 && 8xx
 	help
@@ -746,11 +766,6 @@ config PCI_DOMAINS
 	bool
 	default PCI
 
-config MPC83xx_PCI2
-	bool "  Supprt for 2nd PCI host controller"
-	depends on PCI && MPC834x
-	default y if MPC834x_SYS
-
 config PCI_QSPAN
 	bool "QSpan PCI"
 	depends on !4xx && !CPM2 && 8xx

arch/powerpc/Kconfig.debug

@@ -115,4 +115,46 @@ config PPC_OCP
 	depends on IBM_OCP || XILINX_OCP
 	default y
 
+choice
+	prompt "Early debugging (dangerous)"
+	bool
+	optional
+	help
+	  Enable early debugging. Careful, if you enable debugging for the
+	  wrong type of machine your kernel _will not boot_.
+
+config PPC_EARLY_DEBUG_LPAR
+	bool "LPAR HV Console"
+	depends on PPC_PSERIES
+	help
+	  Select this to enable early debugging for a machine with a HVC
+	  console on vterm 0.
+
+config PPC_EARLY_DEBUG_G5
+	bool "Apple G5"
+	depends on PPC_PMAC64
+	help
+	  Select this to enable early debugging for Apple G5 machines.
+
+config PPC_EARLY_DEBUG_RTAS
+	bool "RTAS Panel"
+	depends on PPC_RTAS
+	help
+	  Select this to enable early debugging via the RTAS panel.
+
+config PPC_EARLY_DEBUG_MAPLE
+	bool "Maple real mode"
+	depends on PPC_MAPLE
+	help
+	  Select this to enable early debugging for Maple.
+
+config PPC_EARLY_DEBUG_ISERIES
+	bool "iSeries HV Console"
+	depends on PPC_ISERIES
+	help
+	  Select this to enable early debugging for legacy iSeries. You need
+	  to hit "Ctrl-x Ctrl-x" to see the messages on the console.
+
+endchoice
+
 endmenu

arch/powerpc/boot/.gitignore

@@ -0,0 +1,20 @@
+addnote
+infblock.c
+infblock.h
+infcodes.c
+infcodes.h
+inffast.c
+inffast.h
+inflate.c
+inftrees.c
+inftrees.h
+infutil.c
+infutil.h
+kernel-vmlinux.strip.c
+kernel-vmlinux.strip.gz
+uImage
+zImage
+zImage.vmode
+zconf.h
+zlib.h
+zutil.h

arch/powerpc/boot/Makefile

@@ -176,4 +176,4 @@ $(obj)/uImage: $(obj)/vmlinux.gz
 install: $(CONFIGURE) $(BOOTIMAGE)
 	sh -x $(srctree)/$(src)/install.sh "$(KERNELRELEASE)" vmlinux System.map "$(INSTALL_PATH)" "$(BOOTIMAGE)"
 
-clean-files := $(addprefix $(objtree)/, $(obj-boot) vmlinux.strip)
+clean-files += $(addprefix $(objtree)/, $(obj-boot) vmlinux.strip)

arch/powerpc/configs/ppc64_defconfig

@@ -878,7 +878,7 @@ CONFIG_HVCS=m
 #
 # CONFIG_WATCHDOG is not set
 # CONFIG_RTC is not set
-# CONFIG_GEN_RTC is not set
+CONFIG_GEN_RTC=y
 # CONFIG_DTLK is not set
 # CONFIG_R3964 is not set
 # CONFIG_APPLICOM is not set

arch/powerpc/kernel/Makefile

@@ -61,9 +61,9 @@ obj-$(CONFIG_MODULES)		+= $(module-y)
 pci64-$(CONFIG_PPC64)		+= pci_64.o pci_dn.o pci_iommu.o \
 				   pci_direct_iommu.o iomap.o
 obj-$(CONFIG_PCI)		+= $(pci64-y)
-kexec-$(CONFIG_PPC64)		:= machine_kexec_64.o
+kexec-$(CONFIG_PPC64)		:= machine_kexec_64.o crash.o
 kexec-$(CONFIG_PPC32)		:= machine_kexec_32.o
-obj-$(CONFIG_KEXEC)		+= machine_kexec.o crash.o $(kexec-y)
+obj-$(CONFIG_KEXEC)		+= machine_kexec.o $(kexec-y)
 
 ifeq ($(CONFIG_PPC_ISERIES),y)
 $(obj)/head_64.o: $(obj)/lparmap.s

arch/powerpc/kernel/crash.c

@@ -18,7 +18,6 @@
 #include <linux/kexec.h>
 #include <linux/bootmem.h>
 #include <linux/crash_dump.h>
-#include <linux/irq.h>
 #include <linux/delay.h>
 #include <linux/elf.h>
 #include <linux/elfcore.h>
@@ -30,6 +29,7 @@
 #include <asm/kdump.h>
 #include <asm/lmb.h>
 #include <asm/firmware.h>
+#include <asm/smp.h>
 
 #ifdef DEBUG
 #include <asm/udbg.h>

arch/powerpc/kernel/crash_dump.c

@@ -55,6 +55,7 @@ void __init kdump_setup(void)
 	DBG(" <- kdump_setup()\n");
 }
 
+#ifdef CONFIG_PROC_VMCORE
 static int __init parse_elfcorehdr(char *p)
 {
 	if (p)
@@ -63,6 +64,7 @@ static int __init parse_elfcorehdr(char *p)
 	return 0;
 }
 __setup("elfcorehdr=", parse_elfcorehdr);
+#endif
 
 static int __init parse_savemaxmem(char *p)
 {

arch/powerpc/kernel/machine_kexec.c

@@ -14,12 +14,6 @@
 #include <linux/threads.h>
 #include <asm/machdep.h>
 
-/*
- * Provide a dummy crash_notes definition until crash dump is implemented.
- * This prevents breakage of crash_notes attribute in kernel/ksysfs.c.
- */
-note_buf_t crash_notes[NR_CPUS];
-
 void machine_crash_shutdown(struct pt_regs *regs)
 {
 	if (ppc_md.machine_crash_shutdown)

arch/powerpc/kernel/pci_64.c

@@ -271,6 +271,9 @@ void __devinit pcibios_claim_one_bus(struct pci_bus *b)
 	list_for_each_entry(child_bus, &b->children, node)
 		pcibios_claim_one_bus(child_bus);
 }
+#ifdef CONFIG_HOTPLUG
+EXPORT_SYMBOL_GPL(pcibios_claim_one_bus);
+#endif
 
 #ifndef CONFIG_PPC_ISERIES
 static void __init pcibios_claim_of_setup(void)

arch/powerpc/kernel/rtas.c

@@ -29,6 +29,7 @@
 #include <asm/delay.h>
 #include <asm/uaccess.h>
 #include <asm/lmb.h>
+#include <asm/udbg.h>
 
 struct rtas_t rtas = {
 	.lock = SPIN_LOCK_UNLOCKED
@@ -52,7 +53,7 @@ EXPORT_SYMBOL(rtas_flash_term_hook);
  * are designed only for very early low-level debugging, which
  * is why the token is hard-coded to 10.
  */
-void call_rtas_display_status(unsigned char c)
+static void call_rtas_display_status(char c)
 {
 	struct rtas_args *args = &rtas.args;
 	unsigned long s;
@@ -65,14 +66,14 @@ void call_rtas_display_status(unsigned char c)
 	args->nargs = 1;
 	args->nret  = 1;
 	args->rets  = (rtas_arg_t *)&(args->args[1]);
-	args->args[0] = (int)c;
+	args->args[0] = (unsigned char)c;
 
 	enter_rtas(__pa(args));
 
 	spin_unlock_irqrestore(&rtas.lock, s);
 }
 
-void call_rtas_display_status_delay(unsigned char c)
+static void call_rtas_display_status_delay(char c)
 {
 	static int pending_newline = 0;  /* did last write end with unprinted newline? */
 	static int width = 16;
@@ -96,6 +97,11 @@ void call_rtas_display_status_delay(unsigned char c)
 	}
 }
 
+void __init udbg_init_rtas(void)
+{
+	udbg_putc = call_rtas_display_status_delay;
+}
+
 void rtas_progress(char *s, unsigned short hex)
 {
 	struct device_node *root;

arch/powerpc/kernel/setup_64.c

@@ -33,6 +33,7 @@
 #include <linux/unistd.h>
 #include <linux/serial.h>
 #include <linux/serial_8250.h>
+#include <linux/bootmem.h>
 #include <asm/io.h>
 #include <asm/kdump.h>
 #include <asm/prom.h>
@@ -70,33 +71,6 @@
 #define DBG(fmt...)
 #endif
 
-/*
- * Here are some early debugging facilities. You can enable one
- * but your kernel will not boot on anything else if you do so
- */
-
-/* This one is for use on LPAR machines that support an HVC console
- * on vterm 0
- */
-extern void udbg_init_debug_lpar(void);
-/* This one is for use on Apple G5 machines
- */
-extern void udbg_init_pmac_realmode(void);
-/* That's RTAS panel debug */
-extern void call_rtas_display_status_delay(unsigned char c);
-/* Here's maple real mode debug */
-extern void udbg_init_maple_realmode(void);
-
-#define EARLY_DEBUG_INIT() do {} while(0)
-
-#if 0
-#define EARLY_DEBUG_INIT() udbg_init_debug_lpar()
-#define EARLY_DEBUG_INIT() udbg_init_maple_realmode()
-#define EARLY_DEBUG_INIT() udbg_init_pmac_realmode()
-#define EARLY_DEBUG_INIT()						\
-	do { udbg_putc = call_rtas_display_status_delay; } while(0)
-#endif
-
 int have_of = 1;
 int boot_cpuid = 0;
 int boot_cpuid_phys = 0;
@@ -237,11 +211,8 @@ void __init early_setup(unsigned long dt_ptr)
 	struct paca_struct *lpaca = get_paca();
 	static struct machdep_calls **mach;
 
-	/*
+	/* Enable early debugging if any specified (see udbg.h) */
-	 * Enable early debugging if any specified (see top of
+	udbg_early_init();
-	 * this file)
-	 */
-	EARLY_DEBUG_INIT();
 
 	DBG(" -> early_setup()\n");
 
@@ -684,3 +655,28 @@ void cpu_die(void)
 	if (ppc_md.cpu_die)
 		ppc_md.cpu_die();
 }
+
+#ifdef CONFIG_SMP
+void __init setup_per_cpu_areas(void)
+{
+	int i;
+	unsigned long size;
+	char *ptr;
+
+	/* Copy section for each CPU (we discard the original) */
+	size = ALIGN(__per_cpu_end - __per_cpu_start, SMP_CACHE_BYTES);
+#ifdef CONFIG_MODULES
+	if (size < PERCPU_ENOUGH_ROOM)
+		size = PERCPU_ENOUGH_ROOM;
+#endif
+
+	for_each_cpu(i) {
+		ptr = alloc_bootmem_node(NODE_DATA(cpu_to_node(i)), size);
+		if (!ptr)
+			panic("Cannot allocate cpu data for CPU %d\n", i);
+
+		paca[i].data_offset = ptr - __per_cpu_start;
+		memcpy(ptr, __per_cpu_start, __per_cpu_end - __per_cpu_start);
+	}
+}
+#endif

arch/powerpc/kernel/udbg.c

@@ -15,11 +15,36 @@
 #include <linux/sched.h>
 #include <linux/console.h>
 #include <asm/processor.h>
+#include <asm/udbg.h>
 
 void (*udbg_putc)(char c);
 int (*udbg_getc)(void);
 int (*udbg_getc_poll)(void);
 
+/*
+ * Early debugging facilities. You can enable _one_ of these via .config,
+ * if you do so your kernel _will not boot_ on anything else. Be careful.
+ */
+void __init udbg_early_init(void)
+{
+#if defined(CONFIG_PPC_EARLY_DEBUG_LPAR)
+	/* For LPAR machines that have an HVC console on vterm 0 */
+	udbg_init_debug_lpar();
+#elif defined(CONFIG_PPC_EARLY_DEBUG_G5)
+	/* For use on Apple G5 machines */
+	udbg_init_pmac_realmode();
+#elif defined(CONFIG_PPC_EARLY_DEBUG_RTAS)
+	/* RTAS panel debug */
+	udbg_init_rtas();
+#elif defined(CONFIG_PPC_EARLY_DEBUG_MAPLE)
+	/* Maple real mode debug */
+	udbg_init_maple_realmode();
+#elif defined(CONFIG_PPC_EARLY_DEBUG_ISERIES)
+	/* For iSeries - hit Ctrl-x Ctrl-x to see the output */
+	udbg_init_iseries();
+#endif
+}
+
 /* udbg library, used by xmon et al */
 void udbg_puts(const char *s)
 {

arch/powerpc/kernel/udbg_16550.c

@@ -155,7 +155,7 @@ void udbg_maple_real_putc(unsigned char c)
 	}
 }
 
-void udbg_init_maple_realmode(void)
+void __init udbg_init_maple_realmode(void)
 {
 	udbg_comport = (volatile struct NS16550 __iomem *)0xf40003f8;
 

arch/powerpc/kernel/vdso32/.gitignore

@@ -0,0 +1 @@
+vdso32.lds

arch/powerpc/kernel/vdso64/.gitignore

@@ -0,0 +1 @@
+vdso64.lds

arch/powerpc/platforms/83xx/Kconfig

@@ -0,0 +1,26 @@
+menu "Platform support"
+	depends on PPC_83xx
+
+choice
+	prompt "Machine Type"
+	default MPC834x_SYS
+
+config MPC834x_SYS
+	bool "Freescale MPC834x SYS"
+	help
+	  This option enables support for the MPC 834x SYS evaluation board.
+
+	  Be aware that PCI buses can only function when SYS board is plugged
+	  into the PIB (Platform IO Board) board from Freescale which provide
+	  3 PCI slots.  The PIBs PCI initialization is the bootloader's
+	  responsiblilty.
+
+endchoice
+
+config MPC834x
+	bool
+	select PPC_UDBG_16550
+	select PPC_INDIRECT_PCI
+	default y if MPC834x_SYS
+
+endmenu

arch/powerpc/platforms/83xx/Makefile

@@ -0,0 +1,4 @@
+#
+# Makefile for the PowerPC 83xx linux kernel.
+#
+obj-$(CONFIG_MPC834x_SYS)	+= mpc834x_sys.o pci.o

arch/powerpc/platforms/Makefile

@@ -7,6 +7,7 @@ endif
 endif
 obj-$(CONFIG_PPC_CHRP)		+= chrp/
 obj-$(CONFIG_4xx)		+= 4xx/
+obj-$(CONFIG_PPC_83xx)		+= 83xx/
 obj-$(CONFIG_85xx)		+= 85xx/
 obj-$(CONFIG_PPC_PSERIES)	+= pseries/
 obj-$(CONFIG_PPC_ISERIES)	+= iseries/

arch/powerpc/platforms/cell/spufs/switch.c

@@ -169,11 +169,33 @@ static inline void save_mfc_cntl(struct spu_state *csa, struct spu *spu)
 	struct spu_priv2 __iomem *priv2 = spu->priv2;
 
 	/* Save, Step 8:
-	 *     Read and save MFC_CNTL[Ss].
+	 *     Suspend DMA and save MFC_CNTL.
 	 */
-	if (csa) {
+	switch (in_be64(&priv2->mfc_control_RW) &
-		csa->priv2.mfc_control_RW = in_be64(&priv2->mfc_control_RW) &
+	       MFC_CNTL_SUSPEND_DMA_STATUS_MASK) {
-		    MFC_CNTL_SUSPEND_DMA_STATUS_MASK;
+	case MFC_CNTL_SUSPEND_IN_PROGRESS:
+		POLL_WHILE_FALSE((in_be64(&priv2->mfc_control_RW) &
+				  MFC_CNTL_SUSPEND_DMA_STATUS_MASK) ==
+				 MFC_CNTL_SUSPEND_COMPLETE);
+		/* fall through */
+	case MFC_CNTL_SUSPEND_COMPLETE:
+		if (csa) {
+			csa->priv2.mfc_control_RW =
+				in_be64(&priv2->mfc_control_RW) |
+				MFC_CNTL_SUSPEND_DMA_QUEUE;
+		}
+		break;
+	case MFC_CNTL_NORMAL_DMA_QUEUE_OPERATION:
+		out_be64(&priv2->mfc_control_RW, MFC_CNTL_SUSPEND_DMA_QUEUE);
+		POLL_WHILE_FALSE((in_be64(&priv2->mfc_control_RW) &
+				  MFC_CNTL_SUSPEND_DMA_STATUS_MASK) ==
+				 MFC_CNTL_SUSPEND_COMPLETE);
+		if (csa) {
+			csa->priv2.mfc_control_RW =
+				in_be64(&priv2->mfc_control_RW) &
+				~MFC_CNTL_SUSPEND_DMA_QUEUE;
+		}
+		break;
 	}
 }
 
@@ -237,6 +259,8 @@ static inline void save_mfc_decr(struct spu_state *csa, struct spu *spu)
 		eieio();
 		csa->spu_chnldata_RW[7] = in_be64(&priv2->spu_chnldata_RW);
 		eieio();
+	} else {
+		csa->priv2.mfc_control_RW &= ~MFC_CNTL_DECREMENTER_RUNNING;
 	}
 }