1 files changed, 64 insertions, 141 deletions

diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c
index 6b52cce..608fee7 100644
--- a/arch/powerpc/kernel/setup_64.c
+++ b/arch/powerpc/kernel/setup_64.c
@@ -41,7 +41,6 @@
 #include <asm/elf.h>
 #include <asm/machdep.h>
 #include <asm/paca.h>
-#include <asm/ppcdebug.h>
 #include <asm/time.h>
 #include <asm/cputable.h>
 #include <asm/sections.h>
@@ -58,8 +57,11 @@
 #include <asm/lmb.h>
 #include <asm/iseries/it_lp_naca.h>
 #include <asm/firmware.h>
-#include <asm/systemcfg.h>
 #include <asm/xmon.h>
+#include <asm/udbg.h>
+#include <asm/kexec.h>
+
+#include "setup.h"
 
 #ifdef DEBUG
 #define DBG(fmt...) udbg_printf(fmt)
@@ -94,15 +96,6 @@ extern void udbg_init_maple_realmode(void);
 	do { udbg_putc = call_rtas_display_status_delay; } while(0)
 #endif
 
-/* extern void *stab; */
-extern unsigned long klimit;
-
-extern void mm_init_ppc64(void);
-extern void stab_initialize(unsigned long stab);
-extern void htab_initialize(void);
-extern void early_init_devtree(void *flat_dt);
-extern void unflatten_device_tree(void);
-
 int have_of = 1;
 int boot_cpuid = 0;
 int boot_cpuid_phys = 0;
@@ -244,12 +237,6 @@ void __init early_setup(unsigned long dt_ptr)
 	DBG(" -> early_setup()\n");
 
 	/*
-	 * Fill the default DBG level (do we want to keep
-	 * that old mecanism around forever ?)
-	 */
-	ppcdbg_initialize();
-
-	/*
 	 * Do early initializations using the flattened device
 	 * tree, like retreiving the physical memory map or
 	 * calculating/retreiving the hash table size
@@ -260,11 +247,10 @@ void __init early_setup(unsigned long dt_ptr)
 	 * Iterate all ppc_md structures until we find the proper
 	 * one for the current machine type
 	 */
-	DBG("Probing machine type for platform %x...\n",
-	    systemcfg->platform);
+	DBG("Probing machine type for platform %x...\n", _machine);
 
 	for (mach = machines; *mach; mach++) {
-		if ((*mach)->probe(systemcfg->platform))
+		if ((*mach)->probe(_machine))
 			break;
 	}
 	/* What can we do if we didn't find ? */
@@ -277,20 +263,47 @@ void __init early_setup(unsigned long dt_ptr)
 	DBG("Found, Initializing memory management...\n");
 
 	/*
-	 * Initialize stab / SLB management
+	 * Initialize the MMU Hash table and create the linear mapping
+	 * of memory. Has to be done before stab/slb initialization as
+	 * this is currently where the page size encoding is obtained
 	 */
-	if (!firmware_has_feature(FW_FEATURE_ISERIES))
-		stab_initialize(lpaca->stab_real);
+	htab_initialize();
 
 	/*
-	 * Initialize the MMU Hash table and create the linear mapping
-	 * of memory
+	 * Initialize stab / SLB management except on iSeries
 	 */
-	htab_initialize();
+	if (!firmware_has_feature(FW_FEATURE_ISERIES)) {
+		if (cpu_has_feature(CPU_FTR_SLB))
+			slb_initialize();
+		else
+			stab_initialize(lpaca->stab_real);
+	}
 
 	DBG(" <- early_setup()\n");
 }
 
+#ifdef CONFIG_SMP
+void early_setup_secondary(void)
+{
+	struct paca_struct *lpaca = get_paca();
+
+	/* Mark enabled in PACA */
+	lpaca->proc_enabled = 0;
+
+	/* Initialize hash table for that CPU */
+	htab_initialize_secondary();
+
+	/* Initialize STAB/SLB. We use a virtual address as it works
+	 * in real mode on pSeries and we want a virutal address on
+	 * iSeries anyway
+	 */
+	if (cpu_has_feature(CPU_FTR_SLB))
+		slb_initialize();
+	else
+		stab_initialize(lpaca->stab_addr);
+}
+
+#endif /* CONFIG_SMP */
 
 #if defined(CONFIG_SMP) || defined(CONFIG_KEXEC)
 void smp_release_cpus(void)
@@ -316,7 +329,8 @@ void smp_release_cpus(void)
 #endif /* CONFIG_SMP || CONFIG_KEXEC */
 
 /*
- * Initialize some remaining members of the ppc64_caches and systemcfg structures
+ * Initialize some remaining members of the ppc64_caches and systemcfg
+ * structures
  * (at least until we get rid of them completely). This is mostly some
  * cache informations about the CPU that will be used by cache flush
  * routines and/or provided to userland
@@ -341,7 +355,7 @@ static void __init initialize_cache_info(void)
 			const char *dc, *ic;
 
 			/* Then read cache informations */
-			if (systemcfg->platform == PLATFORM_POWERMAC) {
+			if (_machine == PLATFORM_POWERMAC) {
 				dc = "d-cache-block-size";
 				ic = "i-cache-block-size";
 			} else {
@@ -361,9 +375,8 @@ static void __init initialize_cache_info(void)
 				DBG("Argh, can't find dcache properties ! "
 				    "sizep: %p, lsizep: %p\n", sizep, lsizep);
 
-			systemcfg->dcache_size = ppc64_caches.dsize = size;
-			systemcfg->dcache_line_size =
-				ppc64_caches.dline_size = lsize;
+			ppc64_caches.dsize = size;
+			ppc64_caches.dline_size = lsize;
 			ppc64_caches.log_dline_size = __ilog2(lsize);
 			ppc64_caches.dlines_per_page = PAGE_SIZE / lsize;
 
@@ -379,60 +392,16 @@ static void __init initialize_cache_info(void)
 				DBG("Argh, can't find icache properties ! "
 				    "sizep: %p, lsizep: %p\n", sizep, lsizep);
 
-			systemcfg->icache_size = ppc64_caches.isize = size;
-			systemcfg->icache_line_size =
-				ppc64_caches.iline_size = lsize;
+			ppc64_caches.isize = size;
+			ppc64_caches.iline_size = lsize;
 			ppc64_caches.log_iline_size = __ilog2(lsize);
 			ppc64_caches.ilines_per_page = PAGE_SIZE / lsize;
 		}
 	}
 
-	/* Add an eye catcher and the systemcfg layout version number */
-	strcpy(systemcfg->eye_catcher, "SYSTEMCFG:PPC64");
-	systemcfg->version.major = SYSTEMCFG_MAJOR;
-	systemcfg->version.minor = SYSTEMCFG_MINOR;
-	systemcfg->processor = mfspr(SPRN_PVR);
-
 	DBG(" <- initialize_cache_info()\n");
 }
 
-static void __init check_for_initrd(void)
-{
-#ifdef CONFIG_BLK_DEV_INITRD
-	u64 *prop;
-
-	DBG(" -> check_for_initrd()\n");
-
-	if (of_chosen) {
-		prop = (u64 *)get_property(of_chosen,
-				"linux,initrd-start", NULL);
-		if (prop != NULL) {
-			initrd_start = (unsigned long)__va(*prop);
-			prop = (u64 *)get_property(of_chosen,
-					"linux,initrd-end", NULL);
-			if (prop != NULL) {
-				initrd_end = (unsigned long)__va(*prop);
-				initrd_below_start_ok = 1;
-			} else
-				initrd_start = 0;
-		}
-	}
-
-	/* If we were passed an initrd, set the ROOT_DEV properly if the values
-	 * look sensible. If not, clear initrd reference.
-	 */
-	if (initrd_start >= KERNELBASE && initrd_end >= KERNELBASE &&
-	    initrd_end > initrd_start)
-		ROOT_DEV = Root_RAM0;
-	else
-		initrd_start = initrd_end = 0;
-
-	if (initrd_start)
-		printk("Found initrd at 0x%lx:0x%lx\n", initrd_start, initrd_end);
-
-	DBG(" <- check_for_initrd()\n");
-#endif /* CONFIG_BLK_DEV_INITRD */
-}
 
 /*
  * Do some initial setup of the system.  The parameters are those which 
@@ -447,6 +416,10 @@ void __init setup_system(void)
 	 */
 	unflatten_device_tree();
 
+#ifdef CONFIG_KEXEC
+	kexec_setup();	/* requires unflattened device tree. */
+#endif
+
 	/*
 	 * Fill the ppc64_caches & systemcfg structures with informations
 	 * retreived from the device-tree. Need to be called before
@@ -516,16 +489,14 @@ void __init setup_system(void)
 
 	printk("-----------------------------------------------------\n");
 	printk("ppc64_pft_size                = 0x%lx\n", ppc64_pft_size);
-	printk("ppc64_debug_switch            = 0x%lx\n", ppc64_debug_switch);
-	printk("ppc64_interrupt_controller    = 0x%ld\n", ppc64_interrupt_controller);
-	printk("systemcfg                     = 0x%p\n", systemcfg);
-	printk("systemcfg->platform           = 0x%x\n", systemcfg->platform);
-	printk("systemcfg->processorCount     = 0x%lx\n", systemcfg->processorCount);
-	printk("systemcfg->physicalMemorySize = 0x%lx\n", systemcfg->physicalMemorySize);
+	printk("ppc64_interrupt_controller    = 0x%ld\n",
+	       ppc64_interrupt_controller);
+	printk("platform                      = 0x%x\n", _machine);
+	printk("physicalMemorySize            = 0x%lx\n", lmb_phys_mem_size());
 	printk("ppc64_caches.dcache_line_size = 0x%x\n",
-			ppc64_caches.dline_size);
+	       ppc64_caches.dline_size);
 	printk("ppc64_caches.icache_line_size = 0x%x\n",
-			ppc64_caches.iline_size);
+	       ppc64_caches.iline_size);
 	printk("htab_address                  = 0x%p\n", htab_address);
 	printk("htab_hash_mask                = 0x%lx\n", htab_hash_mask);
 	printk("-----------------------------------------------------\n");
@@ -552,10 +523,12 @@ static void __init irqstack_early_init(void)
 	 * SLB misses on them.
 	 */
 	for_each_cpu(i) {
-		softirq_ctx[i] = (struct thread_info *)__va(lmb_alloc_base(THREAD_SIZE,
-					THREAD_SIZE, 0x10000000));
-		hardirq_ctx[i] = (struct thread_info *)__va(lmb_alloc_base(THREAD_SIZE,
-					THREAD_SIZE, 0x10000000));
+		softirq_ctx[i] = (struct thread_info *)
+			__va(lmb_alloc_base(THREAD_SIZE,
+					    THREAD_SIZE, 0x10000000));
+		hardirq_ctx[i] = (struct thread_info *)
+			__va(lmb_alloc_base(THREAD_SIZE,
+					    THREAD_SIZE, 0x10000000));
 	}
 }
 #else
@@ -583,35 +556,8 @@ static void __init emergency_stack_init(void)
 	limit = min(0x10000000UL, lmb.rmo_size);
 
 	for_each_cpu(i)
-		paca[i].emergency_sp = __va(lmb_alloc_base(PAGE_SIZE, 128,
-						limit)) + PAGE_SIZE;
-}
-
-/*
- * Called from setup_arch to initialize the bitmap of available
- * syscalls in the systemcfg page
- */
-void __init setup_syscall_map(void)
-{
-	unsigned int i, count64 = 0, count32 = 0;
-	extern unsigned long *sys_call_table;
-	extern unsigned long sys_ni_syscall;
-
-
-	for (i = 0; i < __NR_syscalls; i++) {
-		if (sys_call_table[i*2] != sys_ni_syscall) {
-			count64++;
-			systemcfg->syscall_map_64[i >> 5] |=
-				0x80000000UL >> (i & 0x1f);
-		}
-		if (sys_call_table[i*2+1] != sys_ni_syscall) {
-			count32++;
-			systemcfg->syscall_map_32[i >> 5] |=
-				0x80000000UL >> (i & 0x1f);
-		}
-	}
-	printk(KERN_INFO "Syscall map setup, %d 32-bit and %d 64-bit syscalls\n",
-	       count32, count64);
+		paca[i].emergency_sp =
+		__va(lmb_alloc_base(HW_PAGE_SIZE, 128, limit)) + HW_PAGE_SIZE;
 }
 
 /*
@@ -655,9 +601,6 @@ void __init setup_arch(char **cmdline_p)
 	do_init_bootmem();
 	sparse_init();
 
-	/* initialize the syscall map in systemcfg */
-	setup_syscall_map();
-
 #ifdef CONFIG_DUMMY_CONSOLE
 	conswitchp = &dummy_con;
 #endif
@@ -895,26 +838,6 @@ int check_legacy_ioport(unsigned long base_port)
 }
 EXPORT_SYMBOL(check_legacy_ioport);
 
-#ifdef CONFIG_XMON
-static int __init early_xmon(char *p)
-{
-	/* ensure xmon is enabled */
-	if (p) {
-		if (strncmp(p, "on", 2) == 0)
-			xmon_init(1);
-		if (strncmp(p, "off", 3) == 0)
-			xmon_init(0);
-		if (strncmp(p, "early", 5) != 0)
-			return 0;
-	}
-	xmon_init(1);
-	debugger(NULL);
-
-	return 0;
-}
-early_param("xmon", early_xmon);
-#endif
-
 void cpu_die(void)
 {
 	if (ppc_md.cpu_die)