Merge bk://ppc.bkbits.net/for-linus-ppc

into home.osdl.org:/home/torvalds/v2.5/linux

arch/ppc/Kconfig

@@ -592,6 +592,11 @@ config PPC_PMAC
 	depends on PPC_MULTIPLATFORM
 	default y
 
+config PPC_PMAC64
+	bool
+	depends on PPC_PMAC && POWER4
+	default y
+
 config PPC_PREP
 	bool
 	depends on PPC_MULTIPLATFORM

arch/ppc/platforms/pmac_feature.c

@@ -2239,7 +2239,7 @@ probe_motherboard(void)
 	    	break;
 #else /* CONFIG_POWER4 */
 	    case macio_keylargo2:
-		pmac_mb.model_id = PMAC_TYPE_POWERMAC_G5;
+		pmac_mb.model_id = PMAC_TYPE_UNKNOWN_K2;
 		pmac_mb.model_name = "Unknown G5";
 	    	pmac_mb.features = g5_features;
 	    	break;

arch/ppc64/Kconfig

@@ -60,7 +60,7 @@ config PPC_ISERIES
 	bool "iSeries"
 
 config PPC_PSERIES
-	bool "pSeries"
+	bool "pSeries / PowerMac G5"
 
 endchoice
 
@@ -72,6 +72,11 @@ config PPC64
 	bool
 	default y
 
+config PPC_OF
+	depends on PPC_PSERIES
+	bool
+	default y
+
 # VMX is pSeries only for now until somebody writes the iSeries
 # exception vectors for it
 config ALTIVEC
@@ -79,6 +84,22 @@ config ALTIVEC
 	depends on PPC_PSERIES
 	default y
 
+config PPC_PMAC
+	depends on PPC_PSERIES
+	bool "Apple PowerMac G5 support"
+
+config PPC_PMAC64
+	bool
+	depends on PPC_PMAC
+	default y
+
+config BOOTX_TEXT
+	bool "Support for early boot text console"
+	depends PPC_OF
+	help
+	  Say Y here to see progress messages from the boot firmware in text
+	  mode. Requires an Open Firmware compatible video card.
+
 config POWER4_ONLY
 	bool "Optimize for POWER4"
 	default n

arch/ppc64/kernel/Makefile

@@ -10,9 +10,11 @@ obj-y               :=	setup.o entry.o traps.o irq.o idle.o \
 			align.o semaphore.o bitops.o stab.o pacaData.o \
 			udbg.o binfmt_elf32.o sys_ppc32.o ioctl32.o \
 			ptrace32.o signal32.o pmc.o rtc.o init_task.o \
-			lmb.o cputable.o
+			lmb.o cputable.o cpu_setup_power4.o idle_power4.o
 
-obj-$(CONFIG_PCI)	+= pci.o pci_dn.o pci_dma.o
+obj-$(CONFIG_PPC_OF) +=	of_device.o
+
+obj-$(CONFIG_PCI)	+= pci.o pci_dn.o pci_dma.o pci_dma_direct.o
 
 ifdef CONFIG_PPC_ISERIES
 obj-$(CONFIG_PCI)	+= iSeries_pci.o iSeries_pci_reset.o \
@@ -27,7 +29,7 @@ obj-$(CONFIG_PPC_ISERIES) += iSeries_irq.o \
 			     proc_pmc.o
 
 obj-$(CONFIG_PPC_PSERIES) += pSeries_pci.o pSeries_lpar.o pSeries_hvCall.o \
-			     eeh.o nvram.o rtasd.o ras.o \
+			     eeh.o nvram.o pSeries_nvram.o rtasd.o ras.o \
 			     open_pic.o xics.o pSeries_htab.o rtas.o \
 			     chrp_setup.o i8259.o prom.o vio.o
 
@@ -39,6 +41,14 @@ obj-$(CONFIG_PPC_RTAS)		+= rtas-proc.o
 obj-$(CONFIG_SCANLOG)		+= scanlog.o
 obj-$(CONFIG_VIOPATH)		+= viopath.o
 obj-$(CONFIG_LPARCFG)		+= lparcfg.o
-obj-$(CONFIG_HVC_CONSOLE)   += hvconsole.o
+obj-$(CONFIG_HVC_CONSOLE)	+= hvconsole.o
+obj-$(CONFIG_BOOTX_TEXT)	+= btext.o
+
+obj-$(CONFIG_PPC_PMAC)		+= pmac_setup.o pmac_feature.o pmac_pci.o \
+				   pmac_time.o pmac_nvram.o pmac_low_i2c.o \
+				   open_pic_u3.o
+ifdef CONFIG_SMP
+obj-$(CONFIG_PPC_PMAC)		+= pmac_smp.o smp-tbsync.o
+endif
 
 CFLAGS_ioctl32.o += -Ifs/

arch/ppc64/kernel/chrp_setup.c

@@ -67,9 +67,10 @@
 
 void chrp_progress(char *, unsigned short);
 
-extern void openpic_init_IRQ(void);
+extern void pSeries_init_openpic(void);
 
 extern void find_and_init_phbs(void);
+extern void pSeries_final_fixup(void);
 
 extern void pSeries_get_boot_time(struct rtc_time *rtc_time);
 extern void pSeries_get_rtc_time(struct rtc_time *rtc_time);
@@ -178,6 +179,10 @@ chrp_setup_arch(void)
 #ifdef CONFIG_DUMMY_CONSOLE
 	conswitchp = &dummy_con;
 #endif
+
+#ifdef CONFIG_PPC_PSERIES
+	pSeries_nvram_init();
+#endif
 }
 
 void __init
@@ -252,7 +257,7 @@ chrp_init(unsigned long r3, unsigned long r4, unsigned long r5,
 	ppc_md.setup_residual = NULL;
 	ppc_md.get_cpuinfo    = chrp_get_cpuinfo;
 	if(naca->interrupt_controller == IC_OPEN_PIC) {
-		ppc_md.init_IRQ       = openpic_init_IRQ; 
+		ppc_md.init_IRQ       = pSeries_init_openpic; 
 		ppc_md.get_irq        = openpic_get_irq;
 	} else {
 		ppc_md.init_IRQ       = xics_init_IRQ;
@@ -261,6 +266,8 @@ chrp_init(unsigned long r3, unsigned long r4, unsigned long r5,
 
 	ppc_md.init           = chrp_init2;
 
+	ppc_md.pcibios_fixup  = pSeries_final_fixup;
+
 	ppc_md.restart        = rtas_restart;
 	ppc_md.power_off      = rtas_power_off;
 	ppc_md.halt           = rtas_halt;
@@ -272,9 +279,6 @@ chrp_init(unsigned long r3, unsigned long r4, unsigned long r5,
 
 	ppc_md.progress       = chrp_progress;
 
-	ppc_md.nvram_read     = pSeries_nvram_read;
-	ppc_md.nvram_write    = pSeries_nvram_write;
-
         /* Build up the firmware_features bitmask field
          * using contents of device-tree/ibm,hypertas-functions.
          * Ultimately this functionality may be moved into prom.c prom_init().

arch/ppc64/kernel/cpu_setup_power4.S

+/*
+ * This file contains low level CPU setup functions.
+ *    Copyright (C) 2003 Benjamin Herrenschmidt (benh@kernel.crashing.org)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ */
+
+#include <linux/config.h>
+#include <asm/processor.h>
+#include <asm/page.h>
+#include <asm/ppc_asm.h>
+#include <asm/cputable.h>
+#include <asm/ppc_asm.h>
+#include <asm/offsets.h>
+#include <asm/cache.h>
+
+_GLOBAL(__power4_cpu_preinit)
+	/*
+	 * On the PPC970, we have to turn off real-mode cache inhibit
+	 * early, before we first turn the MMU off.
+	 */
+	mfspr	r0,SPRN_PVR
+	srwi	r0,r0,16
+	cmpwi	r0,0x39
+	bnelr
+
+	li	r0,0
+	sync
+	mtspr	SPRN_HID4,r0
+	isync
+	sync
+	mtspr	SPRN_HID5,r0
+	isync
+
+	mfspr	r0,SPRN_HID1
+	li	r11,0x1200		/* enable i-fetch cacheability */
+	sldi	r11,r11,44		/* and prefetch */
+	or	r0,r0,r11
+	mtspr	SPRN_HID1,r0
+	mtspr	SPRN_HID1,r0
+	isync
+	li	r0,0
+	sync
+	mtspr	SPRN_HIOR,0		/* Clear interrupt prefix */
+	isync
+	blr
+
+_GLOBAL(__setup_cpu_power4)
+	blr
+	
+_GLOBAL(__setup_cpu_ppc970)
+	mfspr	r0,SPRN_HID0
+	li	r11,5			/* clear DOZE and SLEEP */
+	rldimi	r0,r11,52,8		/* set NAP and DPM */
+	mtspr	SPRN_HID0,r0
+	mfspr	r0,SPRN_HID0
+	mfspr	r0,SPRN_HID0
+	mfspr	r0,SPRN_HID0
+	mfspr	r0,SPRN_HID0
+	mfspr	r0,SPRN_HID0
+	mfspr	r0,SPRN_HID0
+	sync
+	isync
+	blr
+
+/* Definitions for the table use to save CPU states */
+#define CS_HID0		0
+#define CS_HID1		8
+#define	CS_HID4		16
+#define CS_HID5		24
+#define CS_SIZE		32
+
+	.data
+	.balign	L1_CACHE_BYTES,0
+cpu_state_storage:	
+	.space	CS_SIZE
+	.balign	L1_CACHE_BYTES,0
+	.text
+	
+/* Called in normal context to backup CPU 0 state. This
+ * does not include cache settings. This function is also
+ * called for machine sleep. This does not include the MMU
+ * setup, BATs, etc... but rather the "special" registers
+ * like HID0, HID1, HID4, etc...
+ */
+_GLOBAL(__save_cpu_setup)
+	/* Some CR fields are volatile, we back it up all */
+	mfcr	r7
+
+	/* Get storage ptr */
+	LOADADDR(r5,cpu_state_storage)
+
+	/* We only deal with 970 for now */
+	mfspr	r0,SPRN_PVR
+	srwi	r0,r0,16
+	cmpwi	r0,0x39
+	bne	1f
+
+	/* Save HID0,1,4 and 5 */
+	mfspr	r3,SPRN_HID0
+	std	r3,CS_HID0(r5)
+	mfspr	r3,SPRN_HID1
+	std	r3,CS_HID1(r5)
+	mfspr	r3,SPRN_HID4
+	std	r3,CS_HID4(r5)
+	mfspr	r3,SPRN_HID5
+	std	r3,CS_HID5(r5)
+	
+1:
+	mtcr	r7
+	blr
+
+/* Called with no MMU context (typically MSR:IR/DR off) to
+ * restore CPU state as backed up by the previous
+ * function. This does not include cache setting
+ */
+_GLOBAL(__restore_cpu_setup)
+	/* Get storage ptr (FIXME when using anton reloc as we
+	 * are running with translation disabled here
+	 */
+	LOADADDR(r5,cpu_state_storage)
+
+	/* We only deal with 970 for now */
+	mfspr	r0,SPRN_PVR
+	srwi	r0,r0,16
+	cmpwi	r0,0x39
+	bne	1f
+
+	/* Clear interrupt prefix */
+	li	r0,0
+	sync
+	mtspr	SPRN_HIOR,0
+	isync
+
+	/* Restore HID0 */
+	ld	r3,CS_HID0(r5)
+	sync
+	isync
+	mtspr	SPRN_HID0,r3
+	mfspr	r3,SPRN_HID0
+	mfspr	r3,SPRN_HID0
+	mfspr	r3,SPRN_HID0
+	mfspr	r3,SPRN_HID0
+	mfspr	r3,SPRN_HID0
+	mfspr	r3,SPRN_HID0
+	sync
+	isync
+
+	/* Restore HID1 */
+	ld	r3,CS_HID1(r5)
+	sync
+	isync
+	mtspr	SPRN_HID1,r3
+	mtspr	SPRN_HID1,r3
+	sync
+	isync
+	
+	/* Restore HID4 */
+	ld	r3,CS_HID4(r5)
+	sync
+	isync
+	mtspr	SPRN_HID4,r3
+	sync
+	isync
+
+	/* Restore HID5 */
+	ld	r3,CS_HID5(r5)
+	sync
+	isync
+	mtspr	SPRN_HID5,r3
+	sync
+	isync
+1:
+	blr
+

arch/ppc64/kernel/cputable.c

@@ -30,6 +30,7 @@ struct cpu_spec* cur_cpu_spec = NULL;
  */
 extern void __setup_cpu_power3(unsigned long offset, struct cpu_spec* spec);
 extern void __setup_cpu_power4(unsigned long offset, struct cpu_spec* spec);
+extern void __setup_cpu_ppc970(unsigned long offset, struct cpu_spec* spec);
 
 
 /* We only set the altivec features if the kernel was compiled with altivec
@@ -119,10 +120,10 @@ struct cpu_spec	cpu_specs[] = {
     {	/* PPC970 */
 	    0xffff0000, 0x00390000, "PPC970",
 	    CPU_FTR_SPLIT_ID_CACHE | CPU_FTR_USE_TB | CPU_FTR_HPTE_TABLE |
-	    CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_ALTIVEC_COMP,
+	    CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_ALTIVEC_COMP | CPU_FTR_CAN_NAP,
 	    COMMON_USER_PPC64 | PPC_FEATURE_HAS_ALTIVEC_COMP,
 	    128, 128,
-	    __setup_cpu_power4,
+	    __setup_cpu_ppc970,
 	    COMMON_PPC64_FW
     },
     {	/* Power5 */

arch/ppc64/kernel/head.S

@@ -1320,6 +1320,16 @@ _GLOBAL(__start_initialization_iSeries)
 #endif
 
 #ifdef CONFIG_PPC_PSERIES
+
+_STATIC(mmu_off)
+	mfmsr	r3
+	andi.	r0,r3,MSR_IR|MSR_DR
+	beqlr
+	andc	r3,r3,r0
+	mtspr	SRR0,r4
+	mtspr	SRR1,r3
+	sync
+	rfid
 _GLOBAL(__start_initialization_pSeries)
 	mr	r31,r3			/* save parameters */
 	mr	r30,r4
@@ -1339,33 +1349,27 @@ _GLOBAL(__start_initialization_pSeries)
 	/* Relocate the TOC from a virt addr to a real addr */
 	sub	r2,r2,r3
 
-	/* DRENG / PPPBBB Fix the following comment!!! -Peter */
-	/* The following copies the first 0x100 bytes of code from the    */
-	/* load addr to physical addr 0x0.  This code causes secondary    */
-	/* processors to spin until a flag in the PACA is set.  This      */
-	/* is done at this time rather than with the entire kernel        */
-	/* relocation which is done below because we need to cause the    */
-	/* processors to spin on code that is not going to move while OF  */
-	/* is still alive. Although the spin code is not actually run on  */
-	/* a uniprocessor, we always do this copy.                        */
-	SET_REG_TO_CONST(r4, KERNELBASE)/* Src addr                       */
-	sub	r4,r4,r3  		/* current address of __start     */
-			                /*        the source addr         */
-	li	r3,0                    /* Dest addr                      */
-	li	r5,0x100 		/* # bytes of memory to copy      */
-	li	r6,0			/* Destination offset             */
-	bl	.copy_and_flush		/* copy the first 0x100 bytes     */
-
+	/* Save parameters */
 	mr	r3,r31
 	mr	r4,r30
 	mr	r5,r29
 	mr	r6,r28
 	mr	r7,r27
 
+	/* Do all of the interaction with OF client interface */
 	bl	.prom_init
+	mr	r23,r3			/* Save phys address we are running at */
+
+	/* Setup some critical 970 SPRs before switching MMU off */
+	bl	.__power4_cpu_preinit
 
 	li	r24,0			/* cpu # */
 
+	/* Switch off MMU if not already */
+	LOADADDR(r4, .__after_prom_start - KERNELBASE)
+	add	r4,r4,r23
+	bl	.mmu_off	
+
 /*
  * At this point, r3 contains the physical address we are running at,
  * returned by prom_init()
@@ -1390,6 +1394,7 @@ _STATIC(__after_prom_start)
 
 	li	r3,0                    /* target addr */
 
+	// XXX FIXME: Use phys returned by OF (r23)
 	sub	r4,r27,r26 		/* source addr */
 					/* current address of _start   */
 			                /*   i.e. where we are running */
@@ -1425,7 +1430,7 @@ _STATIC(__after_prom_start)
  *
  * Note: this routine *only* clobbers r0, r6 and lr
  */
-_STATIC(copy_and_flush)
+_GLOBAL(copy_and_flush)
 	addi	r5,r5,-8
 	addi	r6,r6,-8
 4:	li	r0,16                   /* Use the least common      */
@@ -1675,6 +1680,58 @@ _GLOBAL(giveup_altivec)
 #endif /* CONFIG_ALTIVEC */
 
 #ifdef CONFIG_SMP
+#ifdef CONFIG_PPC_PMAC
+/*
+ * On PowerMac, secondary processors starts from the reset vector, which
+ * is temporarily turned into a call to one of the functions below.
+ */
+	.section ".text";
+	.align 2 ;
+
+	.globl	pmac_secondary_start_1	
+pmac_secondary_start_1:	
+	li	r24, 1
+	b	.pmac_secondary_start
+	
+	.globl pmac_secondary_start_2
+pmac_secondary_start_2:	
+	li	r24, 2
+	b	.pmac_secondary_start
+	
+	.globl pmac_secondary_start_3
+pmac_secondary_start_3:
+	li	r24, 3
+	b	.pmac_secondary_start
+	
+_GLOBAL(pmac_secondary_start)
+	/* turn on 64-bit mode */
+	bl	.enable_64b_mode
+	isync
+
+	/* Copy some CPU settings from CPU 0 */
+	bl	.__restore_cpu_setup
+
+	/* pSeries do that early though I don't think we really need it */
+	mfmsr	r3
+	ori	r3,r3,MSR_RI
+	mtmsrd	r3			/* RI on */
+
+	/* Set up a paca value for this processor. */
+	LOADADDR(r4, paca) 		 /* Get base vaddr of paca array  */
+	mulli	r13,r24,PACA_SIZE	 /* Calculate vaddr of right paca */
+	add	r13,r13,r4               /* for this processor.           */
+	mtspr	SPRG3,r13		 /* Save vaddr of paca in SPRG3   */
+
+        /* Create a temp kernel stack for use before relocation is on.    */
+        mr      r1,r13
+        addi    r1,r1,PACAGUARD
+        addi    r1,r1,0x1000
+        subi    r1,r1,STACK_FRAME_OVERHEAD
+
+	b	.__secondary_start
+
+#endif /* CONFIG_PPC_PMAC */
+
 /*
  * This function is called after the master CPU has released the
  * secondary processors.  The execution environment is relocation off.
@@ -1870,6 +1927,12 @@ _STATIC(start_here_pSeries)
 	li	r0,0
 	stdu	r0,-STACK_FRAME_OVERHEAD(r1)
 
+		/* set up the TOC (physical address) */
+	LOADADDR(r2,__toc_start)
+	addi    r2,r2,0x4000
+	addi    r2,r2,0x4000
+	sub	r2,r2,r26
+
 	LOADADDR(r3,cpu_specs)
 	sub	r3,r3,r26
 	LOADADDR(r4,cur_cpu_spec)
@@ -1877,12 +1940,6 @@ _STATIC(start_here_pSeries)
 	mr	r5,r26
 	bl	.identify_cpu
 
-	/* set up the TOC (physical address) */
-	LOADADDR(r2,__toc_start)
-	addi    r2,r2,0x4000
-	addi    r2,r2,0x4000
-	sub	r2,r2,r26
-
 	/* Get the pointer to the segment table which is used by           */
 	/* stab_initialize                                                 */
 	LOADADDR(r27, boot_cpuid)
@@ -1926,7 +1983,8 @@ _STATIC(start_here_pSeries)
 
 	li	r3,SYSTEMCFG_PHYS_ADDR	/* r3 = ptr to systemcfg */
 	lwz	r3,PLATFORM(r3)		/* r3 = platform flags */
-	cmpldi r3,PLATFORM_PSERIES
+	/* Test if bit 0 is set (LPAR bit) */
+	andi.	r3,r3,0x1
 	bne    98f
 	LOADADDR(r6,_SDR1)		/* Only if NOT LPAR */
 	sub	r6,r6,r26
@@ -1938,11 +1996,12 @@ _STATIC(start_here_pSeries)
 	mtspr	SRR0,r3
 	mtspr	SRR1,r4
 	rfid
-#endif	/* CONFIG_PPC_PSERIES */
-
+#endif /* CONFIG_PPC_PSERIES */
+	
 	/* This is where all platforms converge execution */
 _STATIC(start_here_common)
-	
+	/* relocation is on at this point */
+
 	/* The following code sets up the SP and TOC now that we are */
 	/* running with translation enabled. */
 
@@ -2013,8 +2072,6 @@ _STATIC(start_here_common)
 
 _GLOBAL(__setup_cpu_power3)
 	blr
-_GLOBAL(__setup_cpu_power4)
-	blr
 
 _GLOBAL(hmt_init)
 #ifdef CONFIG_HMT

arch/ppc64/kernel/iSeries_pci.c

@@ -241,9 +241,9 @@ void iSeries_pcibios_init(void)
 }
 
 /*
- * pcibios_final_fixup(void)  
+ * iSeries_pci_final_fixup(void)  
  */
-void __init pcibios_final_fixup(void)
+void __init iSeries_pci_final_fixup(void)
 {
 	struct pci_dev *pdev = NULL;
 	struct iSeries_Device_Node *node;

arch/ppc64/kernel/iSeries_setup.c

@@ -63,10 +63,11 @@ extern void tce_init_iSeries(void);
 static void build_iSeries_Memory_Map(void);
 static void setup_iSeries_cache_sizes(void);
 static void iSeries_bolt_kernel(unsigned long saddr, unsigned long eaddr);
-void build_valid_hpte(unsigned long vsid, unsigned long ea, unsigned long pa,
-		pte_t *ptep, unsigned hpteflags, unsigned bolted);
+extern void build_valid_hpte(unsigned long vsid, unsigned long ea, unsigned long pa,
+			     pte_t *ptep, unsigned hpteflags, unsigned bolted);
 static void iSeries_setup_dprofile(void);
-void iSeries_setup_arch(void);
+extern void iSeries_setup_arch(void);
+extern void iSeries_pci_final_fixup(void);
 
 /* Global Variables */
 static unsigned long procFreqHz;
@@ -318,6 +319,8 @@ void __init iSeries_init_early(void)
 	ppc_md.get_irq = iSeries_get_irq;
 	ppc_md.init = NULL;
 
+	ppc_md.pcibios_fixup  = iSeries_pci_final_fixup;
+
 	ppc_md.restart = iSeries_restart;
 	ppc_md.power_off = iSeries_power_off;
 	ppc_md.halt = iSeries_halt;

arch/ppc64/kernel/idle.c

@@ -42,6 +42,7 @@
 
 extern long cede_processor(void);
 extern long poll_pending(void);
+extern void power4_idle(void);
 
 int (*idle_loop)(void);
 
@@ -279,6 +280,17 @@ int cpu_idle(void)
 	return 0; 
 }
 
+int native_idle(void)
+{
+	while(1) {
+		if (!need_resched())
+			power4_idle();
+		if (need_resched())
+			schedule();
+	}
+	return 0;
+}
+
 int idle_setup(void)
 {
 #ifdef CONFIG_PPC_ISERIES
@@ -297,6 +309,9 @@ int idle_setup(void)
 			printk("idle = default_idle\n");
 			idle_loop = default_idle;
 		}
+	} else if (systemcfg->platform == PLATFORM_POWERMAC) {
+		printk("idle = native_idle\n");
+		idle_loop = native_idle;
 	} else {
 		printk("idle_setup: unknown platform, use default_idle\n");
 		idle_loop = default_idle;

arch/ppc64/kernel/idle_power4.S

+/*
+ *  This file contains the power_save function for 6xx & 7xxx CPUs
+ *  rewritten in assembler
+ *
+ *  Warning ! This code assumes that if your machine has a 750fx
+ *  it will have PLL 1 set to low speed mode (used during NAP/DOZE).
+ *  if this is not the case some additional changes will have to
+ *  be done to check a runtime var (a bit like powersave-nap)
+ *
+ *  This program is free software; you can redistribute it and/or
+ *  modify it under the terms of the GNU General Public License
+ *  as published by the Free Software Foundation; either version
+ *  2 of the License, or (at your option) any later version.
+ */
+
+#include <linux/config.h>
+#include <linux/threads.h>
+#include <asm/processor.h>
+#include <asm/page.h>
+#include <asm/cputable.h>
+#include <asm/thread_info.h>
+#include <asm/ppc_asm.h>
+#include <asm/offsets.h>
+
+#undef DEBUG
+
+	.text
+
+/*
+ * Here is the power_save_6xx function. This could eventually be
+ * split into several functions & changing the function pointer
+ * depending on the various features.
+ */
+_GLOBAL(power4_idle)
+BEGIN_FTR_SECTION
+	blr
+END_FTR_SECTION_IFCLR(CPU_FTR_CAN_NAP)
+	/* We must dynamically check for the NAP feature as it
+	 * can be cleared by CPU init after the fixups are done
+	 */
+	LOADBASE(r3,cur_cpu_spec)
+	ld	r4,cur_cpu_spec@l(r3)
+	ld	r4,CPU_SPEC_FEATURES(r4)
+	andi.	r0,r4,CPU_FTR_CAN_NAP
+	beqlr
+	/* Now check if user or arch enabled NAP mode */
+	LOADBASE(r3,powersave_nap)
+	lwz	r4,powersave_nap@l(r3)
+	cmpi	0,r4,0
+	beqlr
+
+	/* Clear MSR:EE */
+	mfmsr	r7
+	li	r4,0
+	ori	r4,r4,MSR_EE
+	andc	r0,r7,r4
+	mtmsrd	r0
+
+	/* Check current_thread_info()->flags */
+	clrrdi	r4,r1,THREAD_SHIFT
+	ld	r4,TI_FLAGS(r4)
+	andi.	r0,r4,_TIF_NEED_RESCHED
+	beq	1f
+	mtmsrd	r7	/* out of line this ? */
+	blr
+1:	
+	/* Go to NAP now */	
+BEGIN_FTR_SECTION
+	DSSALL
+	sync
+END_FTR_SECTION_IFSET(CPU_FTR_ALTIVEC)
+	oris	r7,r7,MSR_POW@h
+	sync
+	isync
+	mtmsrd	r7
+	isync
+	sync
+	blr
+	

arch/ppc64/kernel/misc.S

@@ -763,7 +763,7 @@ _GLOBAL(sys_call_table32)
 	.llong .sys_fstat64
 	.llong .sys32_pciconfig_read
 	.llong .sys32_pciconfig_write
-	.llong .sys_ni_syscall		/* 200 - old pciconfig_iobase */
+	.llong .sys32_pciconfig_iobase	/* 200 - pciconfig_iobase */
 	.llong .sys_ni_syscall		/* reserved for MacOnLinux */
 	.llong .sys_getdents64
 	.llong .sys_pivot_root
@@ -1022,7 +1022,7 @@ _GLOBAL(sys_call_table)
 	.llong .sys_ni_syscall		/* 32bit only fstat64 */
 	.llong .sys_ni_syscall		/* 32bit only pciconfig_read */
 	.llong .sys_ni_syscall		/* 32bit only pciconfig_write */
-	.llong .sys_ni_syscall		/* 200 - old pciconfig_iobase */
+	.llong .sys_ni_syscall		/* 32bit only pciconfig_iobase */
 	.llong .sys_ni_syscall		/* reserved for MacOnLinux */
 	.llong .sys_getdents64
 	.llong .sys_pivot_root

arch/ppc64/kernel/of_device.c

+#include <linux/config.h>
+#include <linux/string.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/module.h>
+#include <asm/errno.h>
+#include <asm/of_device.h>
+
+/**
+ * of_match_device - Tell if an of_device structure has a matching
+ * of_match structure
+ * @ids: array of of device match structures to search in
+ * @dev: the of device structure to match against
+ *
+ * Used by a driver to check whether an of_device present in the
+ * system is in its list of supported devices.
+ */
+const struct of_match * of_match_device(const struct of_match *matches,
+					const struct of_device *dev)
+{
+	if (!dev->node)
+		return NULL;
+	while (matches->name || matches->type || matches->compatible) {
+		int match = 1;
+		if (matches->name && matches->name != OF_ANY_MATCH)
+			match &= dev->node->name
+				&& !strcmp(matches->name, dev->node->name);
+		if (matches->type && matches->type != OF_ANY_MATCH)
+			match &= dev->node->type
+				&& !strcmp(matches->type, dev->node->type);
+		if (matches->compatible && matches->compatible != OF_ANY_MATCH)
+			match &= device_is_compatible(dev->node,
+				matches->compatible);
+		if (match)
+			return matches;
+		matches++;
+	}
+	return NULL;
+}
+
+static int of_platform_bus_match(struct device *dev, struct device_driver *drv)
+{
+	struct of_device * of_dev = to_of_device(dev);
+	struct of_platform_driver * of_drv = to_of_platform_driver(drv);
+	const struct of_match * matches = of_drv->match_table;
+
+	if (!matches)
+		return 0;
+
+	return of_match_device(matches, of_dev) != NULL;
+}
+
+struct of_device *of_dev_get(struct of_device *dev)
+{
+	struct device *tmp;
+
+	if (!dev)
+		return NULL;
+	tmp = get_device(&dev->dev);
+	if (tmp)
+		return to_of_device(tmp);
+	else
+		return NULL;
+}
+
+void of_dev_put(struct of_device *dev)
+{
+	if (dev)
+		put_device(&dev->dev);
+}
+
+
+static int of_device_probe(struct device *dev)
+{
+	int error = -ENODEV;
+	struct of_platform_driver *drv;
+	struct of_device *of_dev;
+	const struct of_match *match;
+
+	drv = to_of_platform_driver(dev->driver);
+	of_dev = to_of_device(dev);
+
+	if (!drv->probe)
+		return error;
+
+	of_dev_get(of_dev);
+
+	match = of_match_device(drv->match_table, of_dev);
+	if (match)
+		error = drv->probe(of_dev, match);
+	if (error)
+		of_dev_put(of_dev);
+
+	return error;
+}
+
+static int of_device_remove(struct device *dev)
+{
+	struct of_device * of_dev = to_of_device(dev);
+	struct of_platform_driver * drv = to_of_platform_driver(dev->driver);
+
+	if (dev->driver && drv->remove)
+		drv->remove(of_dev);
+	return 0;
+}
+
+static int of_device_suspend(struct device *dev, u32 state)
+{
+	struct of_device * of_dev = to_of_device(dev);
+	struct of_platform_driver * drv = to_of_platform_driver(dev->driver);
+	int error = 0;
+
+	if (dev->driver && drv->suspend)
+		error = drv->suspend(of_dev, state);
+	return error;
+}
+
+static int of_device_resume(struct device * dev)
+{
+	struct of_device * of_dev = to_of_device(dev);
+	struct of_platform_driver * drv = to_of_platform_driver(dev->driver);
+	int error = 0;
+
+	if (dev->driver && drv->resume)
+		error = drv->resume(of_dev);
+	return error;
+}
+
+struct bus_type of_platform_bus_type = {
+       .name	= "of_platform",
+       .match	= of_platform_bus_match,
+       .suspend	= of_device_suspend,
+       .resume	= of_device_resume,
+};
+
+static int __init of_bus_driver_init(void)
+{
+	return bus_register(&of_platform_bus_type);
+}
+
+postcore_initcall(of_bus_driver_init);
+
+int of_register_driver(struct of_platform_driver *drv)
+{
+	int count = 0;
+
+	/* initialize common driver fields */
+	drv->driver.name = drv->name;
+	drv->driver.bus = &of_platform_bus_type;
+	drv->driver.probe = of_device_probe;
+	drv->driver.remove = of_device_remove;
+
+	/* register with core */
+	count = driver_register(&drv->driver);
+	return count ? count : 1;
+}
+
+void of_unregister_driver(struct of_platform_driver *drv)
+{
+	driver_unregister(&drv->driver);
+}
+
+
+static ssize_t dev_show_devspec(struct device *dev, char *buf)
+{
+	struct of_device *ofdev;
+
+	ofdev = to_of_device(dev);
+	return sprintf(buf, "%s", ofdev->node->full_name);
+}
+
+static DEVICE_ATTR(devspec, S_IRUGO, dev_show_devspec, NULL);
+
+/**
+ * of_release_dev - free an of device structure when all users of it are finished.
+ * @dev: device that's been disconnected
+ *
+ * Will be called only by the device core when all users of this of device are
+ * done.
+ */
+void of_release_dev(struct device *dev)
+{
+	struct of_device *ofdev;
+
+        ofdev = to_of_device(dev);
+	kfree(ofdev);
+}
+
+int of_device_register(struct of_device *ofdev)
+{
+	int rc;
+	struct of_device **odprop;
+
+	BUG_ON(ofdev->node == NULL);
+
+	odprop = (struct of_device **)get_property(ofdev->node, "linux,device", NULL);
+	if (!odprop) {
+		struct property *new_prop;
+	
+		new_prop = kmalloc(sizeof(struct property) + sizeof(struct of_device *),
+			GFP_KERNEL);
+		if (new_prop == NULL)
+			return -ENOMEM;
+		new_prop->name = "linux,device";
+		new_prop->length = sizeof(sizeof(struct of_device *));
+		new_prop->value = (unsigned char *)&new_prop[1];
+		odprop = (struct of_device **)new_prop->value;
+		*odprop = NULL;
+		prom_add_property(ofdev->node, new_prop);
+	}
+	*odprop = ofdev;
+
+	rc = device_register(&ofdev->dev);
+	if (rc)
+		return rc;
+
+	device_create_file(&ofdev->dev, &dev_attr_devspec);
+
+	return 0;
+}
+
+void of_device_unregister(struct of_device *ofdev)
+{
+	struct of_device **odprop;
+
+	device_remove_file(&ofdev->dev, &dev_attr_devspec);
+
+	odprop = (struct of_device **)get_property(ofdev->node, "linux,device", NULL);
+	if (odprop)
+		*odprop = NULL;
+
+	device_unregister(&ofdev->dev);
+}
+
+struct of_device* of_platform_device_create(struct device_node *np, const char *bus_id)
+{
+	struct of_device *dev;
+	u32 *reg;
+
+	dev = kmalloc(sizeof(*dev), GFP_KERNEL);
+	if (!dev)
+		return NULL;
+	memset(dev, 0, sizeof(*dev));
+
+	dev->node = np;
+	dev->dma_mask = 0xffffffffUL;
+	dev->dev.dma_mask = &dev->dma_mask;
+	dev->dev.parent = NULL;
+	dev->dev.bus = &of_platform_bus_type;
+	dev->dev.release = of_release_dev;
+
+	reg = (u32 *)get_property(np, "reg", NULL);
+	strlcpy(dev->dev.bus_id, bus_id, BUS_ID_SIZE);
+
+	if (of_device_register(dev) != 0) {
+		kfree(dev);
+		return NULL;
+	}
+
+	return dev;
+}
+
+EXPORT_SYMBOL(of_match_device);
+EXPORT_SYMBOL(of_platform_bus_type);
+EXPORT_SYMBOL(of_register_driver);
+EXPORT_SYMBOL(of_unregister_driver);
+EXPORT_SYMBOL(of_device_register);
+EXPORT_SYMBOL(of_device_unregister);
+EXPORT_SYMBOL(of_dev_get);
+EXPORT_SYMBOL(of_dev_put);
+EXPORT_SYMBOL(of_platform_device_create);
+EXPORT_SYMBOL(of_release_dev);

arch/ppc64/kernel/open_pic.c

@@ -34,7 +34,42 @@ static volatile struct OpenPIC *OpenPIC = NULL;
 u_int OpenPIC_NumInitSenses __initdata = 0;
 u_char *OpenPIC_InitSenses __initdata = NULL;
 
-void find_ISUs(void);
+/*
+ *  Local (static) OpenPIC Operations
+ */
+
+
+/* Global Operations */
+static void openpic_reset(void);
+static void openpic_enable_8259_pass_through(void);
+static void openpic_disable_8259_pass_through(void);
+static u_int openpic_irq(void);
+static void openpic_eoi(void);
+static u_int openpic_get_priority(void);
+static void openpic_set_priority(u_int pri);
+static u_int openpic_get_spurious(void);
+static void openpic_set_spurious(u_int vector);
+
+#ifdef CONFIG_SMP
+/* Interprocessor Interrupts */
+static void openpic_initipi(u_int ipi, u_int pri, u_int vector);
+static irqreturn_t openpic_ipi_action(int cpl, void *dev_id,
+					struct pt_regs *regs);
+#endif
+
+/* Timer Interrupts */
+static void openpic_inittimer(u_int timer, u_int pri, u_int vector);
+static void openpic_maptimer(u_int timer, u_int cpumask);
+
+/* Interrupt Sources */
+static void openpic_enable_irq(u_int irq);
+static void openpic_disable_irq(u_int irq);
+static void openpic_initirq(u_int irq, u_int pri, u_int vector, int polarity,
+			    int is_level);
+static void openpic_mapirq(u_int irq, u_int cpumask);
+static void openpic_set_sense(u_int irq, int sense);
+
+static void find_ISUs(void);
 
 static u_int NumProcessors;
 static u_int NumSources;
@@ -130,7 +165,7 @@ unsigned int openpic_vec_spurious;
 
 #define GET_ISU(source)	ISU[(source) >> 4][(source) & 0xf]
 
-void __init openpic_init_IRQ(void)
+void __init pSeries_init_openpic(void)
 {
         struct device_node *np;
         int i;
@@ -359,9 +394,12 @@ void __init openpic_init(int main_pic, int offset, unsigned char* chrp_ack,
 	}
 
 	/* Init all external sources */
-	for (i = 1; i < NumSources; i++) {
+	for (i = 0; i < NumSources; i++) {
 		int pri, sense;
 
+		/* skip cascade if any */
+		if (offset && i == 0)
+			continue;
 		/* the bootloader may have left it enabled (bad !) */
 		openpic_disable_irq(i+offset);
 
@@ -396,6 +434,9 @@ void __init openpic_init(int main_pic, int offset, unsigned char* chrp_ack,
  */
 static int __init openpic_setup_i8259(void)
 {
+	if (systemcfg->platform == PLATFORM_POWERMAC)
+		return 0;
+
 	if (naca->interrupt_controller == IC_OPEN_PIC) {
 		/* Initialize the cascade */
 		if (request_irq(NUM_8259_INTERRUPTS, no_action, SA_INTERRUPT,
@@ -419,6 +460,14 @@ void openpic_setup_ISU(int isu_num, unsigned long addr)
 
 void find_ISUs(void)
 {
+	/* For PowerMac, setup ISUs on base openpic */
+	if (systemcfg->platform == PLATFORM_POWERMAC) {
+		int i;
+		for (i=0; i<128; i+=0x10) {
+			ISU[i>>4] = &((struct OpenPIC *)OpenPIC_Addr)->Source[i];
+			NumISUs++;
+		}
+	}
         /* Use /interrupt-controller/reg and
          * /interrupt-controller/interrupt-ranges from OF device tree
 	 * the ISU array is setup in chrp_pci.c in ibm_add_bridges
@@ -429,11 +478,22 @@ void find_ISUs(void)
 	/* basically each ISU is a bus, and this assumes that
 	 * open_pic_isu_count interrupts per bus are possible 
 	 * ISU == Interrupt Source
+	 *
+	 * On G5, we keep the original NumSources provided by the controller,
+	 * it's below 128, so we have room to stuff the IPIs and timers like darwin
+	 * does. We put the spurrious vector up at 0xff though.
 	 */
-	NumSources = NumISUs * 0x10;
-	openpic_vec_ipi = NumSources + open_pic_irq_offset;
-	openpic_vec_timer = openpic_vec_ipi + OPENPIC_NUM_IPI; 
-	openpic_vec_spurious = openpic_vec_timer + OPENPIC_NUM_TIMERS;
+	if (systemcfg->platform == PLATFORM_POWERMAC) {
+		openpic_vec_ipi = NumSources;
+		openpic_vec_timer = openpic_vec_ipi + 4; 
+		openpic_vec_spurious = 0xff;
+	} else {
+		NumSources = NumISUs * 0x10;
+
+		openpic_vec_ipi = NumSources + open_pic_irq_offset;
+		openpic_vec_timer = openpic_vec_ipi + OPENPIC_NUM_IPI; 
+		openpic_vec_spurious = openpic_vec_timer + OPENPIC_NUM_TIMERS;
+	}
 }
 
 static inline void openpic_reset(void)
@@ -767,8 +827,7 @@ static inline void openpic_set_sense(u_int irq, int sense)
 
 static void openpic_end_irq(unsigned int irq_nr)
 {
-	if ((irq_desc[irq_nr].status & IRQ_LEVEL) != 0)
-		openpic_eoi();
+	openpic_eoi();
 }
 
 static void openpic_set_affinity(unsigned int irq_nr, cpumask_t cpumask)
@@ -807,9 +866,7 @@ int openpic_get_irq(struct pt_regs *regs)
 
 	int irq = openpic_irq();
 
-	/* Management of the cascade should be moved out of here */
-        if (open_pic_irq_offset && irq == open_pic_irq_offset)
-        {
+        if (open_pic_irq_offset && irq == open_pic_irq_offset) {
                 /*
                  * This magic address generates a PCI IACK cycle.
                  */

arch/ppc64/kernel/open_pic.h

@@ -40,6 +40,8 @@ extern void openpic_cause_IPI(u_int ipi, u_int cpumask);
 
 extern inline int openpic_to_irq(int irq)
 {
+	if (systemcfg->platform == PLATFORM_POWERMAC)
+		return irq;
 	return irq += NUM_8259_INTERRUPTS;
 }
 /*extern int open_pic_irq_offset;*/

arch/ppc64/kernel/open_pic_defs.h

@@ -279,40 +279,6 @@ extern volatile struct OpenPIC *OpenPIC;
 #define Vector_Priority			_Vector_Priority.Reg
 #define Destination			_Destination.Reg
 
-/*
- *  Local (static) OpenPIC Operations
- */
-
-
-/* Global Operations */
-static void openpic_reset(void);
-static void openpic_enable_8259_pass_through(void);
-static void openpic_disable_8259_pass_through(void);
-static u_int openpic_irq(void);
-static void openpic_eoi(void);
-static u_int openpic_get_priority(void);
-static void openpic_set_priority(u_int pri);
-static u_int openpic_get_spurious(void);
-static void openpic_set_spurious(u_int vector);
-
-#ifdef CONFIG_SMP
-/* Interprocessor Interrupts */
-static void openpic_initipi(u_int ipi, u_int pri, u_int vector);
-static irqreturn_t openpic_ipi_action(int cpl, void *dev_id,
-					struct pt_regs *regs);
-#endif
-
-/* Timer Interrupts */
-static void openpic_inittimer(u_int timer, u_int pri, u_int vector);
-static void openpic_maptimer(u_int timer, u_int cpumask);
-
-/* Interrupt Sources */
-static void openpic_enable_irq(u_int irq);
-static void openpic_disable_irq(u_int irq);
-static void openpic_initirq(u_int irq, u_int pri, u_int vector, int polarity,
-			    int is_level);
-static void openpic_mapirq(u_int irq, u_int cpumask);
-static void openpic_set_sense(u_int irq, int sense);
 
 #endif /* __KERNEL__ */
 

arch/ppc64/kernel/open_pic_u3.c

+/*
+ *  arch/ppc/kernel/open_pic.c -- OpenPIC Interrupt Handling
+ *
+ *  Copyright (C) 1997 Geert Uytterhoeven
+ *
+ *  This file is subject to the terms and conditions of the GNU General Public
+ *  License.  See the file COPYING in the main directory of this archive
+ *  for more details.
+ */
+
+#include <linux/config.h>
+#include <linux/types.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/irq.h>
+#include <linux/smp.h>
+#include <linux/interrupt.h>
+#include <asm/ptrace.h>
+#include <asm/signal.h>
+#include <asm/io.h>
+#include <asm/pgtable.h>
+#include <asm/irq.h>
+#include <asm/prom.h>
+
+#include <asm/machdep.h>
+
+#include "open_pic.h"
+#include "open_pic_defs.h"
+
+void* OpenPIC2_Addr;
+static volatile struct OpenPIC *OpenPIC2 = NULL;
+
+extern u_int OpenPIC_NumInitSenses;
+extern u_char *OpenPIC_InitSenses;
+
+static u_int NumSources;
+static int NumISUs;
+static int open_pic2_irq_offset;
+
+static OpenPIC_SourcePtr ISU2[OPENPIC_MAX_ISU];
+
+unsigned int openpic2_vec_spurious;
+
+/*
+ *  Accesses to the current processor's openpic registers
+ *  U3 secondary openpic has only one output
+ */
+#define THIS_CPU		Processor[0]
+#define DECL_THIS_CPU
+#define CHECK_THIS_CPU
+
+#define GET_ISU(source)	ISU2[(source) >> 4][(source) & 0xf]
+
+static inline u_int openpic2_read(volatile u_int *addr)
+{
+	u_int val;
+
+	val = in_be32(addr);
+	return val;
+}
+
+static inline void openpic2_write(volatile u_int *addr, u_int val)
+{
+	out_be32(addr, val);
+}
+
+static inline u_int openpic2_readfield(volatile u_int *addr, u_int mask)
+{
+	u_int val = openpic2_read(addr);
+	return val & mask;
+}
+
+static inline void openpic2_writefield(volatile u_int *addr, u_int mask,
+			       u_int field)
+{
+	u_int val = openpic2_read(addr);
+	openpic2_write(addr, (val & ~mask) | (field & mask));
+}
+
+static inline void openpic2_clearfield(volatile u_int *addr, u_int mask)
+{
+	openpic2_writefield(addr, mask, 0);
+}
+
+static inline void openpic2_setfield(volatile u_int *addr, u_int mask)
+{
+	openpic2_writefield(addr, mask, mask);
+}
+
+static void openpic2_safe_writefield(volatile u_int *addr, u_int mask,
+				    u_int field)
+{
+	unsigned int loops = 100000;
+
+	openpic2_setfield(addr, OPENPIC_MASK);
+	while (openpic2_read(addr) & OPENPIC_ACTIVITY) {
+		if (!loops--) {
+			printk(KERN_ERR "openpic2_safe_writefield timeout\n");
+			break;
+		}
+	}
+	openpic2_writefield(addr, mask | OPENPIC_MASK, field | OPENPIC_MASK);
+}
+
+
+static inline void openpic2_reset(void)
+{
+	openpic2_setfield(&OpenPIC2->Global.Global_Configuration0,
+			 OPENPIC_CONFIG_RESET);
+}
+
+static void openpic2_disable_8259_pass_through(void)
+{
+	openpic2_setfield(&OpenPIC2->Global.Global_Configuration0,
+			 OPENPIC_CONFIG_8259_PASSTHROUGH_DISABLE);
+}
+
+/*
+ *  Find out the current interrupt
+ */
+static u_int openpic2_irq(void)
+{
+	u_int vec;
+	DECL_THIS_CPU;
+	CHECK_THIS_CPU;
+	vec = openpic2_readfield(&OpenPIC2->THIS_CPU.Interrupt_Acknowledge,
+				 OPENPIC_VECTOR_MASK);
+	return vec;
+}
+
+static void openpic2_eoi(void)
+{
+	DECL_THIS_CPU;
+	CHECK_THIS_CPU;
+	openpic2_write(&OpenPIC2->THIS_CPU.EOI, 0);
+	/* Handle PCI write posting */
+	(void)openpic2_read(&OpenPIC2->THIS_CPU.EOI);
+}
+
+
+static inline u_int openpic2_get_priority(void)
+{
+	DECL_THIS_CPU;
+	CHECK_THIS_CPU;
+	return openpic2_readfield(&OpenPIC2->THIS_CPU.Current_Task_Priority,
+				  OPENPIC_CURRENT_TASK_PRIORITY_MASK);
+}
+
+static void openpic2_set_priority(u_int pri)
+{
+	DECL_THIS_CPU;
+	CHECK_THIS_CPU;
+	openpic2_writefield(&OpenPIC2->THIS_CPU.Current_Task_Priority,
+			    OPENPIC_CURRENT_TASK_PRIORITY_MASK, pri);
+}
+
+/*
+ *  Get/set the spurious vector
+ */
+static inline u_int openpic2_get_spurious(void)
+{
+	return openpic2_readfield(&OpenPIC2->Global.Spurious_Vector,
+				  OPENPIC_VECTOR_MASK);
+}
+
+static void openpic2_set_spurious(u_int vec)
+{
+	openpic2_writefield(&OpenPIC2->Global.Spurious_Vector, OPENPIC_VECTOR_MASK,
+			    vec);
+}
+
+/*
+ *  Enable/disable an external interrupt source
+ *
+ *  Externally called, irq is an offseted system-wide interrupt number
+ */
+static void openpic2_enable_irq(u_int irq)
+{
+	unsigned int loops = 100000;
+
+	openpic2_clearfield(&GET_ISU(irq - open_pic2_irq_offset).Vector_Priority, OPENPIC_MASK);
+	/* make sure mask gets to controller before we return to user */
+	do {
+		if (!loops--) {
+			printk(KERN_ERR "openpic_enable_irq timeout\n");
+			break;
+		}
+
+		mb(); /* sync is probably useless here */
+	} while(openpic2_readfield(&GET_ISU(irq - open_pic2_irq_offset).Vector_Priority,
+			OPENPIC_MASK));
+}
+
+static void openpic2_disable_irq(u_int irq)
+{
+	u32 vp;
+	unsigned int loops = 100000;
+	
+	openpic2_setfield(&GET_ISU(irq - open_pic2_irq_offset).Vector_Priority,
+			  OPENPIC_MASK);
+	/* make sure mask gets to controller before we return to user */
+	do {
+		if (!loops--) {
+			printk(KERN_ERR "openpic_disable_irq timeout\n");
+			break;
+		}
+
+		mb();  /* sync is probably useless here */
+		vp = openpic2_readfield(&GET_ISU(irq - open_pic2_irq_offset).Vector_Priority,
+    			OPENPIC_MASK | OPENPIC_ACTIVITY);
+	} while((vp & OPENPIC_ACTIVITY) && !(vp & OPENPIC_MASK));
+}
+
+/*
+ *  Initialize an interrupt source (and disable it!)
+ *
+ *  irq: OpenPIC interrupt number
+ *  pri: interrupt source priority
+ *  vec: the vector it will produce
+ *  pol: polarity (1 for positive, 0 for negative)
+ *  sense: 1 for level, 0 for edge
+ */
+static void openpic2_initirq(u_int irq, u_int pri, u_int vec, int pol, int sense)
+{
+	openpic2_safe_writefield(&GET_ISU(irq).Vector_Priority,
+				 OPENPIC_PRIORITY_MASK | OPENPIC_VECTOR_MASK |
+				 OPENPIC_SENSE_MASK | OPENPIC_POLARITY_MASK,
+				 (pri << OPENPIC_PRIORITY_SHIFT) | vec |
+				 (pol ? OPENPIC_POLARITY_POSITIVE :
+				  OPENPIC_POLARITY_NEGATIVE) |
+				 (sense ? OPENPIC_SENSE_LEVEL : OPENPIC_SENSE_EDGE));
+}
+
+/*
+ *  Map an interrupt source to one or more CPUs
+ */
+static void openpic2_mapirq(u_int irq, u_int physmask)
+{
+	openpic2_write(&GET_ISU(irq).Destination, physmask);
+}
+
+/*
+ *  Set the sense for an interrupt source (and disable it!)
+ *
+ *  sense: 1 for level, 0 for edge
+ */
+static inline void openpic2_set_sense(u_int irq, int sense)
+{
+	openpic2_safe_writefield(&GET_ISU(irq).Vector_Priority,
+				 OPENPIC_SENSE_LEVEL,
+				 (sense ? OPENPIC_SENSE_LEVEL : 0));
+}
+
+static void openpic2_end_irq(unsigned int irq_nr)
+{
+	openpic2_eoi();
+}
+
+int openpic2_get_irq(struct pt_regs *regs)
+{
+	int irq = openpic2_irq();
+
+	if (irq == openpic2_vec_spurious)
+		return -1;
+	return irq + open_pic2_irq_offset;
+}
+
+struct hw_interrupt_type open_pic2 = {
+	" OpenPIC2 ",
+	NULL,
+	NULL,
+	openpic2_enable_irq,
+	openpic2_disable_irq,
+	NULL,
+	openpic2_end_irq,
+};
+
+void __init openpic2_init(int offset)
+{
+	u_int t, i;
+	const char *version;
+
+	if (!OpenPIC2_Addr) {
+		printk(KERN_INFO "No OpenPIC2 found !\n");
+		return;
+	}
+	OpenPIC2 = (volatile struct OpenPIC *)OpenPIC2_Addr;
+
+	ppc64_boot_msg(0x20, "OpenPic U3 Init");
+
+	t = openpic2_read(&OpenPIC2->Global.Feature_Reporting0);
+	switch (t & OPENPIC_FEATURE_VERSION_MASK) {
+	case 1:
+		version = "1.0";
+		break;
+	case 2:
+		version = "1.2";
+		break;
+	case 3:
+		version = "1.3";
+		break;
+	default:
+		version = "?";
+		break;
+	}
+	printk(KERN_INFO "OpenPIC (U3) Version %s\n", version);
+
+	open_pic2_irq_offset = offset;
+
+	for (i=0; i<128; i+=0x10) {
+		ISU2[i>>4] = &((struct OpenPIC *)OpenPIC2_Addr)->Source[i];
+		NumISUs++;
+	}
+	NumSources = NumISUs * 0x10;
+	openpic2_vec_spurious = NumSources;
+
+	openpic2_set_priority(0xf);
+
+	/* Init all external sources */
+	for (i = 0; i < NumSources; i++) {
+		int pri, sense;
+
+		/* the bootloader may have left it enabled (bad !) */
+		openpic2_disable_irq(i+offset);
+
+		pri = 8;
+		sense = (i < OpenPIC_NumInitSenses) ? OpenPIC_InitSenses[i]: 1;
+		if (sense)
+			irq_desc[i+offset].status = IRQ_LEVEL;
+
+		/* Enabled, Priority 8 or 9 */
+		openpic2_initirq(i, pri, i, !sense, sense);
+		/* Processor 0 */
+		openpic2_mapirq(i, 0x1);
+	}
+
+	/* Init descriptors */
+	for (i = offset; i < NumSources + offset; i++)
+		irq_desc[i].handler = &open_pic2;
+
+	/* Initialize the spurious interrupt */
+	openpic2_set_spurious(openpic2_vec_spurious);
+
+	openpic2_set_priority(0);
+	openpic2_disable_8259_pass_through();
+
+	ppc64_boot_msg(0x25, "OpenPic2 Done");
+}

arch/ppc64/kernel/pSeries_nvram.c

+/*
+ *  c 2001 PPC 64 Team, IBM Corp
+ *
+ *      This program is free software; you can redistribute it and/or
+ *      modify it under the terms of the GNU General Public License
+ *      as published by the Free Software Foundation; either version
+ *      2 of the License, or (at your option) any later version.
+ *
+ * /dev/nvram driver for PPC64
+ *
+ * This perhaps should live in drivers/char
+ */
+
+#include <linux/module.h>
+
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/fs.h>
+#include <linux/miscdevice.h>
+#include <linux/fcntl.h>
+#include <linux/nvram.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/spinlock.h>
+#include <asm/uaccess.h>
+#include <asm/nvram.h>
+#include <asm/rtas.h>
+#include <asm/prom.h>
+#include <asm/machdep.h>
+
+static unsigned int nvram_size;
+static unsigned int nvram_fetch, nvram_store;
+static char nvram_buf[NVRW_CNT];	/* assume this is in the first 4GB */
+static spinlock_t nvram_lock = SPIN_LOCK_UNLOCKED;
+
+
+static ssize_t pSeries_nvram_read(char *buf, size_t count, loff_t *index)
+{
+	unsigned int i;
+	unsigned long len, done;
+	unsigned long flags;
+	char *p = buf;
+
+	if (nvram_size == 0 || nvram_fetch)
+		return -ENODEV;
+
+	if (*index >= nvram_size)
+		return 0;
+
+	i = *index;
+	if (i + count > nvram_size)
+		count = nvram_size - i;
+
+	spin_lock_irqsave(&nvram_lock, flags);
+
+	for (; count != 0; count -= len) {
+		len = count;
+		if (len > NVRW_CNT)
+			len = NVRW_CNT;
+		
+		if ((rtas_call(nvram_fetch, 3, 2, &done, i, __pa(nvram_buf),
+			       len) != 0) || len != done) {
+			spin_unlock_irqrestore(&nvram_lock, flags);
+			return -EIO;
+		}
+		
+		memcpy(p, nvram_buf, len);
+
+		p += len;
+		i += len;
+	}
+
+	spin_unlock_irqrestore(&nvram_lock, flags);
+	
+	*index = i;
+	return p - buf;
+}
+
+static ssize_t pSeries_nvram_write(char *buf, size_t count, loff_t *index)
+{
+	unsigned int i;
+	unsigned long len, done;
+	unsigned long flags;
+	const char *p = buf;
+
+	if (nvram_size == 0 || nvram_store)
+		return -ENODEV;
+
+	if (*index >= nvram_size)
+		return 0;
+
+	i = *index;
+	if (i + count > nvram_size)
+		count = nvram_size - i;
+
+	spin_lock_irqsave(&nvram_lock, flags);
+
+	for (; count != 0; count -= len) {
+		len = count;
+		if (len > NVRW_CNT)
+			len = NVRW_CNT;
+
+		memcpy(nvram_buf, p, len);
+
+		if ((rtas_call(nvram_store, 3, 2, &done, i, __pa(nvram_buf),
+			       len) != 0) || len != done) {
+			spin_unlock_irqrestore(&nvram_lock, flags);
+			return -EIO;
+		}
+		
+		p += len;
+		i += len;
+	}
+	spin_unlock_irqrestore(&nvram_lock, flags);
+	
+	*index = i;
+	return p - buf;
+}
+
+static ssize_t pSeries_nvram_get_size(void)
+{
+	return nvram_size ? nvram_size : -ENODEV;
+}
+
+int __init pSeries_nvram_init(void)
+{
+	struct device_node *nvram;
+	unsigned int *nbytes_p, proplen;
+
+	nvram = of_find_node_by_type(NULL, "nvram");
+	if (nvram == NULL)
+		return -ENODEV;
+
+	nbytes_p = (unsigned int *)get_property(nvram, "#bytes", &proplen);
+	if (nbytes_p == NULL || proplen != sizeof(unsigned int))
+		return -EIO;
+
+	nvram_size = *nbytes_p;
+
+	nvram_fetch = rtas_token("nvram-fetch");
+	nvram_store = rtas_token("nvram-store");
+	printk(KERN_INFO "PPC64 nvram contains %d bytes\n", nvram_size);
+	of_node_put(nvram);
+
+	ppc_md.nvram_read	= pSeries_nvram_read;
+	ppc_md.nvram_write	= pSeries_nvram_write;
+	ppc_md.nvram_size	= pSeries_nvram_get_size;
+
+	return 0;
+}

arch/ppc64/kernel/pSeries_pci.c

@@ -687,7 +687,7 @@ static void phbs_fixup_io(void)
 
 extern void chrp_request_regions(void);
 
-void __init pcibios_final_fixup(void)
+void __init pSeries_final_fixup(void)
 {
 	struct pci_dev *dev = NULL;
 

arch/ppc64/kernel/pci.c

@@ -34,6 +34,7 @@
 #include <asm/ppcdebug.h>
 #include <asm/naca.h>
 #include <asm/pci_dma.h>
+#include <asm/machdep.h>
 
 #include "pci.h"
 
@@ -58,21 +59,32 @@ void pcibios_name_device(struct pci_dev* dev);
 void pcibios_final_fixup(void);
 static void fixup_broken_pcnet32(struct pci_dev* dev);
 static void fixup_windbond_82c105(struct pci_dev* dev);
+extern void fixup_k2_sata(struct pci_dev* dev);
 
 void iSeries_pcibios_init(void);
 
 struct pci_controller *hose_head;
 struct pci_controller **hose_tail = &hose_head;
 
+struct pci_dma_ops pci_dma_ops;
+EXPORT_SYMBOL(pci_dma_ops);
+
 int global_phb_number;		/* Global phb counter */
 
 /* Cached ISA bridge dev. */
 struct pci_dev *ppc64_isabridge_dev = NULL;
 
 struct pci_fixup pcibios_fixups[] = {
-	{ PCI_FIXUP_HEADER,	PCI_VENDOR_ID_TRIDENT,	PCI_ANY_ID, fixup_broken_pcnet32 },
-	{ PCI_FIXUP_HEADER,	PCI_VENDOR_ID_WINBOND,	PCI_DEVICE_ID_WINBOND_82C105, fixup_windbond_82c105 },
-	{ PCI_FIXUP_HEADER, PCI_ANY_ID,	PCI_ANY_ID, pcibios_name_device },
+	{ PCI_FIXUP_HEADER,	PCI_VENDOR_ID_TRIDENT,		PCI_ANY_ID,
+	  fixup_broken_pcnet32 },
+	{ PCI_FIXUP_HEADER,	PCI_VENDOR_ID_WINBOND,		PCI_DEVICE_ID_WINBOND_82C105,
+	  fixup_windbond_82c105 },
+	{ PCI_FIXUP_HEADER,	PCI_ANY_ID,    			PCI_ANY_ID,
+	  pcibios_name_device },
+#ifdef CONFIG_PPC_PMAC
+	{ PCI_FIXUP_HEADER,	PCI_VENDOR_ID_SERVERWORKS,	0x0240,
+	  fixup_k2_sata },
+#endif
 	{ 0 }
 };
 
@@ -250,6 +262,9 @@ pci_alloc_pci_controller(enum phb_types controller_type)
 	case phb_type_winnipeg:
 		model = "PHB WP";
 		break;
+	case phb_type_apple:
+		model = "PHB APPLE";
+		break;
 	default:
 		model = "PHB UK";
 		break;
@@ -332,8 +347,9 @@ static int __init pcibios_init(void)
 		pci_assign_unassigned_resources();
 #endif
 
-	/* Call machine dependent fixup */
-	pcibios_final_fixup();
+	/* Call machine dependent final fixup */
+	if (ppc_md.pcibios_fixup)
+		ppc_md.pcibios_fixup();
 
 	/* Cache the location of the ISA bridge (if we have one) */
 	ppc64_isabridge_dev = pci_find_class(PCI_CLASS_BRIDGE_ISA << 8, NULL);

arch/ppc64/kernel/pci_dn.c

@@ -181,6 +181,7 @@ struct device_node *fetch_dev_dn(struct pci_dev *dev)
 	}
 	return dn;
 }
+EXPORT_SYMBOL(fetch_dev_dn);
 
 
 /******************************************************************

arch/ppc64/kernel/pmac.h

+#ifndef __PMAC_H__
+#define __PMAC_H__
+
+#include <linux/pci.h>
+#include <linux/ide.h>
+
+/*
+ * Declaration for the various functions exported by the
+ * pmac_* files. Mostly for use by pmac_setup
+ */
+
+extern void pmac_get_boot_time(struct rtc_time *tm);
+extern void pmac_get_rtc_time(struct rtc_time *tm);
+extern int  pmac_set_rtc_time(struct rtc_time *tm);
+extern void pmac_read_rtc_time(void);
+extern void pmac_calibrate_decr(void);
+
+extern void pmac_pcibios_fixup(void);
+extern void pmac_pci_init(void);
+extern void pmac_setup_pci_dma(void);
+extern void fixup_k2_sata(struct pci_dev* dev);
+extern void pmac_check_ht_link(void);
+
+extern void pmac_setup_smp(void);
+
+extern unsigned long pmac_ide_get_base(int index);
+extern void pmac_ide_init_hwif_ports(hw_regs_t *hw,
+	unsigned long data_port, unsigned long ctrl_port, int *irq);
+
+extern void pmac_nvram_init(void);
+
+#endif /* __PMAC_H__ */

include/asm-ppc64/dbdma.h

+#include <asm-ppc/dbdma.h>
+