ppc64: put machine type into naca from Don Reed

arch/ppc64/kernel/LparData.c

@@ -220,10 +220,6 @@ struct ItVpdAreas itVpdAreas = {
 	}
 };
 
-
-/* Data area used in flush_hash_page  */
-long long flush_hash_page_hpte[2];
-
 struct msChunks msChunks = {0, 0, 0, 0, NULL};
 
 /* Depending on whether this is called from iSeries or pSeries setup

arch/ppc64/kernel/chrp_setup.c

@@ -251,7 +251,7 @@ chrp_init(unsigned long r3, unsigned long r4, unsigned long r5,
 #endif /* CONFIG_BLK_DEV_INITRD */
 #endif
 
-	ppc_md.ppc_machine = _machine;
+	ppc_md.ppc_machine = naca->platform;
 
 	ppc_md.setup_arch     = chrp_setup_arch;
 	ppc_md.setup_residual = NULL;
@@ -315,7 +315,7 @@ chrp_progress(char *s, unsigned short hex)
 	if (hex)
 		udbg_printf("<chrp_progress> %s\n", s);
 
-	if (!rtas.base || (_machine != _MACH_pSeries))
+	if (!rtas.base || (naca->platform != PLATFORM_PSERIES))
 		return;
 
 	if (max_width == 0) {

arch/ppc64/kernel/eeh.c

@@ -121,7 +121,7 @@ void eeh_init(void) {
 	ibm_set_eeh_option = rtas_token("ibm,set-eeh-option");
 	ibm_set_slot_reset = rtas_token("ibm,set-slot-reset");
 	ibm_read_slot_reset_state = rtas_token("ibm,read-slot-reset-state");
-	if (ibm_set_eeh_option != RTAS_UNKNOWN_SERVICE && _machine == _MACH_pSeriesLP)
+	if (ibm_set_eeh_option != RTAS_UNKNOWN_SERVICE && naca->platform == PLATFORM_PSERIES_LPAR)
 		eeh_implemented = 1;
 
 	if (eeh_force_off > eeh_force_on) {

arch/ppc64/kernel/htab.c

@@ -83,7 +83,7 @@ create_pte_mapping(unsigned long start, unsigned long end,
 	for (addr = start; addr < end; addr += step) {
 		unsigned long vsid = get_kernel_vsid(addr);
 		unsigned long va = (vsid << 28) | (addr & 0xfffffff);
-		if (_machine == _MACH_pSeriesLP)
+		if (naca->platform == PLATFORM_PSERIES_LPAR)
 			pSeries_lpar_make_pte(htab, va,
 				(unsigned long)__v2a(addr), mode, mask, large);
 		else
@@ -118,7 +118,7 @@ htab_initialize(void)
 	_htab_data->htab_num_ptegs = pteg_count;
 	_htab_data->htab_hash_mask = pteg_count - 1;
 
-	if (_machine == _MACH_pSeries) {
+	if (naca->platform == PLATFORM_PSERIES) {
 		/* Find storage for the HPT.  Must be contiguous in
 		 * the absolute address space.
 		 */

arch/ppc64/kernel/pSeries_pci.c

@@ -518,7 +518,7 @@ alloc_phb(struct device_node *dev, char *model, unsigned int addr_size_words)
 	        phb = pci_alloc_pci_controller("PHB SW",phb_type_speedwagon);
 		if (phb == NULL) return NULL;
 
-		if (_machine == _MACH_pSeries) {
+		if (naca->platform == PLATFORM_PSERIES) {
 			phb->cfg_addr = (volatile unsigned long *) 
 			  ioremap(reg_struct.address + 0x140, PAGE_SIZE);
 			phb->cfg_data = (char*)(phb->cfg_addr - 0x02); /* minus is correct */

arch/ppc64/kernel/pci_dma.c

@@ -137,7 +137,7 @@ static inline struct TceTable *get_tce_table(struct pci_dev *dev)
 		dev = ppc64_isabridge_dev;
 	if (!dev)
 		return NULL;
-	if ( ( _machine == _MACH_iSeries ) && ( dev->bus ) ) 
+	if ( ( naca->platform == PLATFORM_ISERIES_LPAR ) && ( dev->bus ) ) 
 		return tceTables[dev->bus->number];
 	/* On the iSeries, the virtual bus will take this path.  There is a */
 	/* fake pci_dev and dev_node built and used.                        */
@@ -765,7 +765,7 @@ void create_tce_tables(void) {
 	struct pci_dev *dev;
 	struct device_node *dn, *mydn;
 
-	if (_machine == _MACH_pSeriesLP)
+	if (naca->platform == PLATFORM_PSERIES_LPAR)
 		create_tce_tables_for_busesLP(&pci_root_buses);
 	else
 	create_tce_tables_for_buses(&pci_root_buses);
@@ -799,7 +799,7 @@ void create_pci_bus_tce_table( unsigned long token ) {
 
 	newTceTable = kmalloc( sizeof(struct TceTable), GFP_KERNEL );
 
-	if(_machine == _MACH_iSeries) {
+	if(naca->platform == PLATFORM_ISERIES_LPAR) {
 		if ( token > 254 ) {
 			printk("PCI: Bus TCE table failed, invalid bus number %lu\n", token );
 			return;
@@ -860,7 +860,7 @@ void create_pci_bus_tce_table( unsigned long token ) {
 
 		dn = (struct device_node *)token;
 		phb = dn->phb;
-		if (_machine == _MACH_pSeries)
+		if (naca->platform == PLATFORM_PSERIES)
 			getTceTableParmsPSeries(phb, dn, newTceTable);
 		else
 			getTceTableParmsPSeriesLP(phb, dn, newTceTable);

arch/ppc64/kernel/ppc_ksyms.c

@@ -14,7 +14,6 @@
 #include <linux/sched.h>
 #include <linux/string.h>
 #include <linux/interrupt.h>
-#include <linux/nvram.h>
 #include <linux/spinlock.h>
 #include <linux/console.h>
 #include <linux/irq.h>
@@ -225,9 +224,6 @@ EXPORT_SYMBOL(__no_use_cli);
 #endif
 #endif
 
-#ifndef CONFIG_MACH_SPECIFIC
-EXPORT_SYMBOL(_machine);
-#endif
 EXPORT_SYMBOL(ppc_md);
 
 EXPORT_SYMBOL(find_devices);

arch/ppc64/kernel/prom.c

@@ -376,7 +376,7 @@ prom_initialize_naca(unsigned long mem)
 				_naca->iCacheL1LogLineSize  = __ilog2(size);
 				_naca->iCacheL1LinesPerPage = PAGE_SIZE / size;
 
-				if (RELOC(_machine) == _MACH_pSeriesLP) {
+				if (_naca->platform == PLATFORM_PSERIES_LPAR) {
 					u32 pft_size[2];
 					call_prom(RELOC("getprop"), 4, 1, node, 
 						  RELOC("ibm,pft-size"),
@@ -451,7 +451,7 @@ prom_initialize_naca(unsigned long mem)
 
 	_naca->physicalMemorySize = lmb_phys_mem_size();
 
-	if (RELOC(_machine) == _MACH_pSeries) {
+	if (_naca->platform == PLATFORM_PSERIES) {
 		unsigned long rnd_mem_size, pteg_count;
 
 		/* round mem_size up to next power of 2 */
@@ -522,8 +522,8 @@ prom_initialize_naca(unsigned long mem)
         prom_print_hex(_naca->interrupt_controller);
         prom_print_nl();
 
-        prom_print(RELOC("_machine                   = 0x"));
-        prom_print_hex(RELOC(_machine));
+        prom_print(RELOC("naca->platform             = 0x"));
+        prom_print_hex(_naca->platform);
         prom_print_nl();
 
 	prom_print(RELOC("prom_initialize_naca: end...\n"));
@@ -626,6 +626,7 @@ prom_instantiate_rtas(unsigned long mem)
 	unsigned long offset = reloc_offset();
 	struct prom_t *_prom = PTRRELOC(&prom);
 	struct rtas_t *_rtas = PTRRELOC(&rtas);
+	struct naca_struct *_naca = RELOC(naca);
 	ihandle prom_rtas;
         u32 getprop_rval;
 
@@ -642,7 +643,7 @@ prom_instantiate_rtas(unsigned long mem)
 				  RELOC("ibm,hypertas-functions"), 
 				  hypertas_funcs, 
 				  sizeof(hypertas_funcs))) > 0) {
-			RELOC(_machine) = _MACH_pSeriesLP;
+			_naca->platform = PLATFORM_PSERIES_LPAR;
 		}
 
 		call_prom(RELOC("getprop"), 
@@ -1241,7 +1242,7 @@ prom_init(unsigned long r3, unsigned long r4, unsigned long pp,
 	struct prom_t *_prom = PTRRELOC(&prom);
 
 	/* Default machine type. */
-	RELOC(_machine) = _MACH_pSeries;
+	_naca->platform = PLATFORM_PSERIES;
 	/* Reset klimit to take into account the embedded system map */
 	if (RELOC(embedded_sysmap_end))
 		RELOC(klimit) = __va(PAGE_ALIGN(RELOC(embedded_sysmap_end)));
@@ -1413,7 +1414,7 @@ prom_init(unsigned long r3, unsigned long r4, unsigned long pp,
 
 	lmb_reserve(0, __pa(RELOC(klimit)));
 
-	if (RELOC(_machine) == _MACH_pSeries)
+	if (_naca->platform == PLATFORM_PSERIES)
 		prom_initialize_tce_table();
 
  	if ((long) call_prom(RELOC("getprop"), 4, 1,

arch/ppc64/kernel/rtas-proc.c

@@ -200,7 +200,7 @@ void proc_rtas_init(void)
 	struct proc_dir_entry *entry;
 
 	rtas_node = find_devices("rtas");
-	if ((rtas_node == 0) || (_machine == _MACH_iSeries)) {
+	if ((rtas_node == 0) || (naca->platform == PLATFORM_ISERIES_LPAR)) {
 		return;
 	}
 	

arch/ppc64/kernel/setup.c

@@ -76,8 +76,6 @@ void parse_cmd_line(unsigned long r3, unsigned long r4, unsigned long r5,
 		    unsigned long r6, unsigned long r7);
 int parse_bootinfo(void);
 
-int _machine = _MACH_unknown;
-
 #ifdef CONFIG_MAGIC_SYSRQ
 unsigned long SYSRQ_KEY;
 #endif /* CONFIG_MAGIC_SYSRQ */
@@ -134,14 +132,15 @@ void setup_system(unsigned long r3, unsigned long r4, unsigned long r5,
 
 	/* pSeries systems are identified in prom.c via OF. */
 	if ( itLpNaca.xLparInstalled == 1 )
-		_machine = _MACH_iSeries;
-	switch (_machine) {
-	case _MACH_iSeries:
+		naca->platform = PLATFORM_ISERIES_LPAR;
+	
+	switch (naca->platform) {
+	case PLATFORM_ISERIES_LPAR:
 		iSeries_init_early();
 		break;
 
 #ifdef CONFIG_PPC_PSERIES
-	case _MACH_pSeries:
+	case PLATFORM_PSERIES:
 		pSeries_init_early();
 #ifdef CONFIG_BLK_DEV_INITRD
 		initrd_start = initrd_end = 0;
@@ -149,7 +148,7 @@ void setup_system(unsigned long r3, unsigned long r4, unsigned long r5,
 		parse_bootinfo();
 		break;
 
-	case _MACH_pSeriesLP:
+	case PLATFORM_PSERIES_LPAR:
 		pSeriesLP_init_early();
 #ifdef CONFIG_BLK_DEV_INITRD
 		initrd_start = initrd_end = 0;
@@ -220,15 +219,15 @@ void setup_system(unsigned long r3, unsigned long r4, unsigned long r5,
 	udbg_puts("\n-----------------------------------------------------\n");
 
 
-	if ( _machine & _MACH_pSeries ) {
+	if (naca->platform & PLATFORM_PSERIES) {
 		finish_device_tree();
 		chrp_init(r3, r4, r5, r6, r7);
 	}
 
 	mm_init_ppc64();
 
-	switch (_machine) {
-	case _MACH_iSeries:
+	switch (naca->platform) {
+	case PLATFORM_ISERIES_LPAR:
 		iSeries_init();
 		break;
 	default:
@@ -313,7 +312,7 @@ static int show_cpuinfo(struct seq_file *m, void *v)
 	 * Assume here that all clock rates are the same in a
 	 * smp system.  -- Cort
 	 */
-	if (_machine != _MACH_iSeries) {
+	if (naca->platform != PLATFORM_ISERIES_LPAR) {
 		struct device_node *cpu_node;
 		int *fp;
 

arch/ppc64/kernel/smp.c

@@ -262,7 +262,7 @@ smp_chrp_setup_cpu(int cpu_nr)
 	static atomic_t ready = ATOMIC_INIT(1);
 	static volatile int frozen = 0;
 
-	if (_machine == _MACH_pSeriesLP) {
+	if (naca->platform == PLATFORM_PSERIES_LPAR) {
 		/* timebases already synced under the hypervisor. */
 		paca[cpu_nr].next_jiffy_update_tb = tb_last_stamp = get_tb();
 		if (cpu_nr == 0) {

arch/ppc64/kernel/udbg.c

@@ -23,8 +23,6 @@
 #include <asm/uaccess.h>
 #include <asm/machdep.h>
 
-extern int _machine;
-
 struct NS16550 {
 	/* this struct must be packed */
 	unsigned char rbr;  /* 0 */
@@ -86,7 +84,7 @@ udbg_putc(unsigned char c)
 				/* wait for idle */;
 			udbg_comport->thr = '\r'; eieio();
 		}
-	} else if ( _machine == _MACH_iSeries ) {
+	} else if (naca->platform == PLATFORM_ISERIES_LPAR) {
 		/* ToDo: switch this via ppc_md */
 		printk("%c", c);
 	}
@@ -180,7 +178,7 @@ udbg_puthex(unsigned long val)
 void
 udbg_printSP(const char *s)
 {
-	if (_machine == _MACH_pSeries) {
+	if (naca->platform == PLATFORM_PSERIES) {
 		unsigned long sp;
 		asm("mr %0,1" : "=r" (sp) :);
 		if (s)

arch/ppc64/kernel/xics.c

@@ -369,7 +369,7 @@ xics_init_IRQ( void )
 		xics_irq_8259_cascade = virt_irq_create_mapping(xics_irq_8259_cascade_real);
 	}
 
-	if (_machine == _MACH_pSeries) {
+	if (naca->platform == PLATFORM_PSERIES) {
 #ifdef CONFIG_SMP
 		for (i = 0; i < naca->processorCount; ++i) {
 			xics_info.per_cpu[i] =
@@ -383,7 +383,7 @@ xics_init_IRQ( void )
 	/* actually iSeries does not use any of xics...but it has link dependencies
 	 * for now, except this new one...
 	 */
-	} else if (_machine == _MACH_pSeriesLP) {
+	} else if (naca->platform == PLATFORM_PSERIES_LPAR) {
 		ops = &pSeriesLP_ops;
 #endif
 	}

arch/ppc64/xmon/xmon.c

@@ -538,7 +538,7 @@ insert_bpts()
 	int i;
 	struct bpt *bp;
 
-	if (_machine != _MACH_pSeries)
+	if (naca->platform != PLATFORM_PSERIES)
 		return;
 	bp = bpts;
 	for (i = 0; i < NBPTS; ++i, ++bp) {
@@ -569,7 +569,7 @@ remove_bpts()
 	struct bpt *bp;
 	unsigned instr;
 
-	if (_machine != _MACH_pSeries)
+	if (naca->platform != PLATFORM_PSERIES)
 		return;
 	if (!__is_processor(PV_POWER4)) {
 		set_dabr(0);

include/asm-ppc64/iSeries/HvReleaseData.h

@@ -52,7 +52,7 @@ struct	HvReleaseData
 	u32	xDesc;			// Descriptor	"HvRD" ebcdic	x00-x03
 	u16	xSize;			// Size of this control block	x04-x05
 	u16	xVpdAreasPtrOffset;	// Offset in NACA of ItVpdAreas	x06-x07
-	struct  naca* xSlicNacaAddr;	// Virtual address of SLIC NACA x08-x0F
+	struct  naca_struct * xSlicNacaAddr; // Virt addr of SLIC NACA  x08-x0F
 	u32	xMsNucDataOffset;	// Offset of Linux Mapping Data x10-x13
 	u32	xRsvd1;			// Reserved			x14-x17
 	u16	xTagsMode:1;		// 0 == tags active, 1 == tags inactive

include/asm-ppc64/naca.h

@@ -30,7 +30,9 @@ struct naca_struct {
 	u64 pftSize;			/* Log base 2 of page table size */
 	u64 serialPortAddr;		/* Phyical address of serial port */
 	u8 interrupt_controller;	/* Type of interrupt controller */ 
-	u8 resv0[6];			/* Padding */
+	u8 resv0;    			/* Type of interrupt controller */
+	u16 platform;			/* Platform flags */
+	u8 resv1[12];			/* Padding */
 };
 
 extern struct naca_struct *naca;

include/asm-ppc64/processor.h

@@ -490,18 +490,10 @@
 #define	PV_630        	0x0040
 #define	PV_630p	        0x0041
 
-/* Platforms supported by PPC64.  _machine is actually a set of flags */
-#define _MACH_pSeriesHW 0x00010000
-#define _MACH_iSeriesHW 0x00020000
-#define _MACH_LPAR	0x00000001
-
-#define _MACH_unknown	0x00000000
-#define _MACH_pSeries	(_MACH_pSeriesHW)
-#define _MACH_pSeriesLP	(_MACH_pSeriesHW | _MACH_LPAR)
-#define _MACH_iSeries	(_MACH_iSeriesHW | _MACH_LPAR)
-
-/* Compat defines for drivers */
-#define _MACH_Pmac	0xf0000000	/* bogus value */
+/* Platforms supported by PPC64 */
+#define PLATFORM_PSERIES      0x0100
+#define PLATFORM_PSERIES_LPAR 0x0101
+#define PLATFORM_ISERIES_LPAR 0x0201
 	
 /*
  * List of interrupt controllers.
@@ -609,7 +601,6 @@ GLUE(GLUE(.LT,NAME),_procname_end):
 			asm volatile("mfasr %0" : "=r" (rval)); rval;})
 
 #ifndef __ASSEMBLY__
-extern int _machine;
 extern int have_of;
 
 struct task_struct;