Merge samba.org:/home/paulus/kernel/linux-2.5

into samba.org:/home/paulus/kernel/for-linus-ppc

arch/ppc/Kconfig

@@ -1060,13 +1060,7 @@ config HIGHMEM_START_BOOL
 	  Say N here unless you know what you are doing.
 
 config HIGHMEM_START
-	hex "Virtual start address of high memory pool"
-	depends on HIGHMEM_START_BOOL
-	default "0xfe000000"
-
-config HIGHMEM_START
-	hex
-	depends on !HIGHMEM_START_BOOL
+	hex "Virtual start address of high memory pool" if HIGHMEM_START_BOOL
 	default "0xfe000000"
 
 config LOWMEM_SIZE_BOOL
@@ -1082,13 +1076,7 @@ config LOWMEM_SIZE_BOOL
 	  Say N here unless you know what you are doing.
 
 config LOWMEM_SIZE
-	hex "Maximum low memory size (in bytes)"
-	depends on LOWMEM_SIZE_BOOL
-	default "0x20000000"
-
-config LOWMEM_SIZE
-	hex
-	depends on !LOWMEM_SIZE_BOOL
+	hex "Maximum low memory size (in bytes)" if LOWMEM_SIZE_BOOL
 	default "0x20000000"
 
 config KERNEL_START_BOOL
@@ -1103,13 +1091,7 @@ config KERNEL_START_BOOL
 	  Say N here unless you know what you are doing.
 
 config KERNEL_START
-	hex "Virtual address of kernel base"
-	depends on KERNEL_START_BOOL
-	default "0xc0000000"
-
-config KERNEL_START
-	hex
-	depends on !KERNEL_START_BOOL
+	hex "Virtual address of kernel base" if KERNEL_START_BOOL
 	default "0xc0000000"
 
 config TASK_SIZE_BOOL
@@ -1123,13 +1105,7 @@ config TASK_SIZE_BOOL
 	  Say N here unless you know what you are doing.
 
 config TASK_SIZE
-	hex "Size of user task space"
-	depends on TASK_SIZE_BOOL
-	default "0x80000000"
-
-config TASK_SIZE
-	hex
-	depends on !TASK_SIZE_BOOL
+	hex "Size of user task space" if TASK_SIZE_BOOL
 	default "0x80000000"
 
 config BOOT_LOAD_BOOL
@@ -1143,19 +1119,8 @@ config BOOT_LOAD_BOOL
 	  Say N here unless you know what you are doing.
 
 config BOOT_LOAD
-	hex "Link/load address for booting"
-	depends on BOOT_LOAD_BOOL
-	default "0x00400000"
-
-# If we don't have a custom load, we define one here depending.
-config BOOT_LOAD
-	hex
-	depends on !BOOT_LOAD_BOOL && (40x || 8xx || 8260)
-	default "0x00400000"
-
-config BOOT_LOAD
-	hex
-	depends on !BOOT_LOAD_BOOL
+	hex "Link/load address for booting" if BOOT_LOAD_BOOL
+	default "0x00400000" if 40x || 8xx || 8260
 	default "0x00800000"
 
 config PIN_TLB

arch/ppc/boot/prep/misc.c

@@ -316,10 +316,32 @@ decompress_kernel(unsigned long load_addr, int num_words, unsigned long cksum,
 
 	{
 		struct bi_record *rec;
-		
-		rec = (struct bi_record *)_ALIGN((unsigned long)(zimage_size) +
+		unsigned long initrd_loc;
+		unsigned long rec_loc = _ALIGN((unsigned long)(zimage_size) +
 				(1 << 20) - 1, (1 << 20));
 		
+		rec = (struct bi_record *)rec_loc;
+
+		/* We need to make sure that the initrd and bi_recs do not
+		 * overlap. */
+		if ( initrd_size ) {
+			initrd_loc = (unsigned long)(&__ramdisk_begin);
+			/* If the bi_recs are in the middle of the current
+			 * initrd, move the initrd to the next MB
+			 * boundary. */
+			if ((rec_loc > initrd_loc) &&
+					((initrd_loc + initrd_size)
+					 > rec_loc)) {
+				initrd_loc = _ALIGN((unsigned long)(zimage_size)
+						+ (2 << 20) - 1, (2 << 20));
+			 	memmove((void *)initrd_loc, &__ramdisk_begin,
+					 initrd_size);
+		         	puts("initrd moved:  "); puthex(initrd_loc);
+			 	puts(" "); puthex(initrd_loc + initrd_size);
+			 	puts("\n");
+			}
+		}
+
 		rec->tag = BI_FIRST;
 		rec->size = sizeof(struct bi_record);
 		rec = (struct bi_record *)((unsigned long)rec + rec->size);
@@ -348,7 +370,7 @@ decompress_kernel(unsigned long load_addr, int num_words, unsigned long cksum,
 
 		if ( initrd_size ) {
 			rec->tag = BI_INITRD;
-			rec->data[0] = (unsigned long)(&__ramdisk_begin);
+			rec->data[0] = initrd_loc;
 			rec->data[1] = initrd_size;
 			rec->size = sizeof(struct bi_record) + 2 *
 				sizeof(unsigned long);

arch/ppc/boot/simple/misc-embedded.c

@@ -209,9 +209,30 @@ decompress_kernel(unsigned long load_addr, int num_words, unsigned long cksum, b
 	puts("done.\n");
 	{
 		struct bi_record *rec;
+		unsigned long initrd_loc;
+		unsigned long rec_loc = _ALIGN((unsigned long)(zimage_size) +
+				(1 << 20) - 1, (1 << 20));
+		rec = (struct bi_record *)rec_loc;
 
-		rec = (struct bi_record *)_ALIGN((unsigned long)zimage_size +
-				(1 << 20) - 1,(1 << 20));
+		/* We need to make sure that the initrd and bi_recs do not
+		 * overlap. */
+		if ( initrd_size ) {
+			initrd_loc = (unsigned long)(&__ramdisk_begin);
+			/* If the bi_recs are in the middle of the current
+			 * initrd, move the initrd to the next MB
+			 * boundary. */
+			if ((rec_loc > initrd_loc) &&
+					((initrd_loc + initrd_size)
+					 > rec_loc)) {
+				initrd_loc = _ALIGN((unsigned long)(zimage_size)
+						+ (2 << 20) - 1, (2 << 20));
+			 	memmove((void *)initrd_loc, &__ramdisk_begin,
+					 initrd_size);
+		         	puts("initrd moved:  "); puthex(initrd_loc);
+			 	puts(" "); puthex(initrd_loc + initrd_size);
+			 	puts("\n");
+			}
+		}
 
 		rec->tag = BI_FIRST;
 		rec->size = sizeof(struct bi_record);
@@ -224,7 +245,7 @@ decompress_kernel(unsigned long load_addr, int num_words, unsigned long cksum, b
 
 		if ( initrd_size ) {
 			rec->tag = BI_INITRD;
-			rec->data[0] = (unsigned long)(&__ramdisk_begin);
+			rec->data[0] = initrd_loc;
 			rec->data[1] = initrd_size;
 			rec->size = sizeof(struct bi_record) + 2 *
 				sizeof(unsigned long);

arch/ppc/boot/simple/misc-spruce.c

@@ -396,9 +396,30 @@ decompress_kernel(unsigned long load_addr, int num_words, unsigned long cksum)
 
 	{
 		struct bi_record *rec;
+		unsigned long initrd_loc;
+		unsigned long rec_loc = _ALIGN((unsigned long)(zimage_size) +
+				(1 << 20) - 1, (1 << 20));
+		rec = (struct bi_record *)rec_loc;
   
-		rec = (struct bi_record *)_ALIGN((ulong)zimage_size +
-							(1<<20)-1,(1<<20));
+		/* We need to make sure that the initrd and bi_recs do not
+		 * overlap. */
+		if ( initrd_size ) {
+			initrd_loc = (unsigned long)(&__ramdisk_begin);
+			/* If the bi_recs are in the middle of the current
+			 * initrd, move the initrd to the next MB
+			 * boundary. */
+			if ((rec_loc > initrd_loc) &&
+					((initrd_loc + initrd_size)
+					 > rec_loc)) {
+				initrd_loc = _ALIGN((unsigned long)(zimage_size)
+						+ (2 << 20) - 1, (2 << 20));
+			 	memmove((void *)initrd_loc, &__ramdisk_begin,
+					 initrd_size);
+		         	puts("initrd moved:  "); puthex(initrd_loc);
+			 	puts(" "); puthex(initrd_loc + initrd_size);
+			 	puts("\n");
+			}
+		}
 
 		rec->tag = BI_FIRST;
         	rec->size = sizeof(struct bi_record);
@@ -421,7 +442,7 @@ decompress_kernel(unsigned long load_addr, int num_words, unsigned long cksum)
 
 		if ( initrd_size ) {
 			rec->tag = BI_INITRD;
-			rec->data[0] = (unsigned long)(&__ramdisk_begin);
+			rec->data[0] = initrd_loc;
 			rec->data[1] = initrd_size;
 			rec->size = sizeof(struct bi_record) + 2 *
 				sizeof(unsigned long);

arch/ppc/boot/simple/misc.c

@@ -76,8 +76,8 @@ decompress_kernel(unsigned long load_addr, int num_words, unsigned long cksum)
 {
 	int timer = 0;
 	char *cp, ch;
-	struct bi_record *rec, *birecs;
-	unsigned long TotalMemory = 0;
+	struct bi_record *rec;
+	unsigned long TotalMemory = 0, rec_loc, initrd_loc;
 
 	serial_fixups();
 	com_port = serial_init(0, NULL);
@@ -197,9 +197,28 @@ decompress_kernel(unsigned long load_addr, int num_words, unsigned long cksum)
 	/*
 	 * Create bi_recs for cmd_line and initrds
 	 */
-	rec = (struct bi_record *)_ALIGN((unsigned long)(zimage_size) +
+	rec_loc = _ALIGN((unsigned long)(zimage_size) +
 			(1 << 20) - 1, (1 << 20));
-	birecs = rec;
+	rec = (struct bi_record *)rec_loc;
+
+	/* We need to make sure that the initrd and bi_recs do not
+	 * overlap. */
+	if ( initrd_size ) {
+		initrd_loc = (unsigned long)(&__ramdisk_begin);
+		/* If the bi_recs are in the middle of the current
+		 * initrd, move the initrd to the next MB
+		 * boundary. */
+		if ((rec_loc > initrd_loc) &&
+				((initrd_loc + initrd_size) > rec_loc)) {
+			initrd_loc = _ALIGN((unsigned long)(zimage_size)
+					+ (2 << 20) - 1, (2 << 20));
+		 	memmove((void *)initrd_loc, &__ramdisk_begin,
+				 initrd_size);
+	         	puts("initrd moved:  "); puthex(initrd_loc);
+		 	puts(" "); puthex(initrd_loc + initrd_size);
+		 	puts("\n");
+		}
+	}
  
 	rec->tag = BI_FIRST;
 	rec->size = sizeof(struct bi_record);
@@ -219,7 +238,7 @@ decompress_kernel(unsigned long load_addr, int num_words, unsigned long cksum)
 
 	if ( initrd_size ) {
 		rec->tag = BI_INITRD;
-		rec->data[0] = (unsigned long)(&__ramdisk_begin);
+		rec->data[0] = initrd_loc;
 		rec->data[1] = initrd_size;
 		rec->size = sizeof(struct bi_record) + 2 *
 			sizeof(unsigned long);
@@ -233,5 +252,5 @@ decompress_kernel(unsigned long load_addr, int num_words, unsigned long cksum)
 	puts("Now booting the kernel\n");
 	serial_close(com_port);
 
-	return birecs;
+	return (struct bi_record *)rec_loc;
 }

arch/ppc/kernel/time.c

@@ -286,13 +286,11 @@ void do_settimeofday(struct timeval *tv)
 	write_unlock_irqrestore(&xtime_lock, flags);
 }
 
-
+/* This function is only called on the boot processor */
 void __init time_init(void)
 {
 	time_t sec, old_sec;
 	unsigned old_stamp, stamp, elapsed;
-	/* This function is only called on the boot processor */
-	unsigned long flags;
 
         if (ppc_md.time_init != NULL)
                 time_offset = ppc_md.time_init();
@@ -309,31 +307,31 @@ void __init time_init(void)
 	/* Now that the decrementer is calibrated, it can be used in case the 
 	 * clock is stuck, but the fact that we have to handle the 601
 	 * makes things more complex. Repeatedly read the RTC until the
-	 * next second boundary to try to achieve some precision...
+	 * next second boundary to try to achieve some precision.  If there
+	 * is no RTC, we still need to set tb_last_stamp and
+	 * last_jiffy_stamp(cpu 0) to the current stamp.
 	 */
-	if (ppc_md.get_rtc_time) {
 	stamp = get_native_tbl();
+	if (ppc_md.get_rtc_time) {
 		sec = ppc_md.get_rtc_time();
 		elapsed = 0;
 		do {
 			old_stamp = stamp; 
 			old_sec = sec;
 			stamp = get_native_tbl();
-			if (__USE_RTC() && stamp < old_stamp) old_stamp -= 1000000000;
+			if (__USE_RTC() && stamp < old_stamp)
+				old_stamp -= 1000000000;
 			elapsed += stamp - old_stamp;
 			sec = ppc_md.get_rtc_time();
 		} while ( sec == old_sec && elapsed < 2*HZ*tb_ticks_per_jiffy);
-		if (sec==old_sec) {
+		if (sec==old_sec)
 			printk("Warning: real time clock seems stuck!\n");
-		}
-		write_lock_irqsave(&xtime_lock, flags);
 		xtime.tv_sec = sec;
-		last_jiffy_stamp(0) = tb_last_stamp = stamp;
 		xtime.tv_nsec = 0;
 		/* No update now, we just read the time from the RTC ! */
 		last_rtc_update = xtime.tv_sec;
-		write_unlock_irqrestore(&xtime_lock, flags);
 	}
+	last_jiffy_stamp(0) = tb_last_stamp = stamp;
 
 	/* Not exact, but the timer interrupt takes care of this */
 	set_dec(tb_ticks_per_jiffy);

arch/ppc/platforms/prep_setup.c

@@ -57,6 +57,7 @@
 #include <asm/mpc10x.h>
 #include <asm/i8259.h>
 #include <asm/open_pic.h>
+#include <asm/pci-bridge.h>
 
 unsigned char ucSystemType;
 unsigned char ucBoardRev;
@@ -991,11 +992,23 @@ static void __init
 prep_init_IRQ(void)
 {
 	int i;
+	unsigned int pci_viddid, pci_did;
 
 	if (OpenPIC_Addr != NULL)
 		openpic_init(NUM_8259_INTERRUPTS);
 	for ( i = 0 ; i < NUM_8259_INTERRUPTS ; i++ )
 		irq_desc[i].handler = &i8259_pic;
+	/* If we have a Raven PCI bridge or a Hawk PCI bridge / Memory
+	 * controller, we poll (as they have a different int-ack address). */
+	early_read_config_dword(0, 0, 0, PCI_VENDOR_ID, &pci_viddid);
+	pci_did = (pci_viddid & 0xffff0000) >> 16;
+	if (((pci_viddid & 0xffff) == PCI_VENDOR_ID_MOTOROLA)
+			&& ((pci_did == PCI_DEVICE_ID_MOTOROLA_RAVEN)
+				|| (pci_did == PCI_DEVICE_ID_MOTOROLA_HAWK)))
+		i8259_init(0);
+	else
+		/* PCI interrupt ack address given in section 6.1.8 of the
+		 * PReP specification. */
 		i8259_init(MPC10X_MAPA_PCI_INTACK_ADDR);
 }
 

include/asm-ppc/bitops.h

@@ -236,8 +236,6 @@ static __inline__ int ffz(unsigned long x)
 	return __ilog2(x & -x);
 }
 
-#ifdef __KERNEL__
-
 static inline int __ffs(unsigned long x)
 {
 	return __ilog2(x & -x);
@@ -274,8 +272,6 @@ static __inline__ int fls(unsigned int x)
 #define hweight16(x) generic_hweight16(x)
 #define hweight8(x) generic_hweight8(x)
 
-#endif /* __KERNEL__ */
-
 /*
  * Find the first bit set in a 140-bit bitmap.
  * The first 100 bits are unlikely to be set.
@@ -395,8 +391,6 @@ static __inline__ unsigned long find_next_zero_bit(unsigned long * addr,
 }
 
 
-#ifdef __KERNEL__
-
 #define ext2_set_bit(nr, addr)	__test_and_set_bit((nr) ^ 0x18, (unsigned long *)(addr))
 #define ext2_clear_bit(nr, addr) __test_and_clear_bit((nr) ^ 0x18, (unsigned long *)(addr))
 
@@ -460,7 +454,5 @@ static __inline__ unsigned long ext2_find_next_zero_bit(void *addr,
 #define minix_test_bit(nr,addr) ext2_test_bit(nr,addr)
 #define minix_find_first_zero_bit(addr,size) ext2_find_first_zero_bit(addr,size)
 
-#endif	/* __KERNEL__ */
-
 #endif /* _PPC_BITOPS_H */
 #endif /* __KERNEL__ */

include/asm-ppc/cache.h

@@ -39,12 +39,11 @@
 		 __section__(".data.cacheline_aligned")))
 #endif
 
-#if defined(__KERNEL__) && !defined(__ASSEMBLY__)
+#ifndef __ASSEMBLY__
 extern void clean_dcache_range(unsigned long start, unsigned long stop);
 extern void flush_dcache_range(unsigned long start, unsigned long stop);
 extern void invalidate_dcache_range(unsigned long start, unsigned long stop);
 extern void flush_dcache_all(void);
-
 #endif /* __ASSEMBLY__ */
 
 /* prep registers for L2 */

include/asm-ppc/io.h

@@ -193,7 +193,6 @@ extern void _outsl_ns(volatile u32 *port, const void *buf, int nl);
 #define memcpy_fromio(a,b,c)   memcpy((a),(void *)(b),(c))
 #define memcpy_toio(a,b,c)	memcpy((void *)(a),(b),(c))
 
-#ifdef __KERNEL__
 /*
  * Map in an area of physical address space, for accessing
  * I/O devices etc.
@@ -265,8 +264,6 @@ extern inline void * phys_to_virt(unsigned long address)
 #define page_to_phys(page)	(page_to_pfn(page) << PAGE_SHIFT)
 #define page_to_bus(page)	(page_to_phys(page) + PCI_DRAM_OFFSET)
 
-#endif /* __KERNEL__ */
-
 /*
  * Enforce In-order Execution of I/O:
  * Acts as a barrier to ensure all previous I/O accesses have

include/asm-ppc/nvram.h

@@ -31,8 +31,6 @@ enum {
 	pmac_nvram_NR		/* MacOS Name Registry partition */
 };
 
-#ifdef __KERNEL__
-
 /* Return partition offset in nvram */
 extern int	pmac_get_partition(int partition);
 
@@ -40,8 +38,6 @@ extern int	pmac_get_partition(int partition);
 extern u8	pmac_xpram_read(int xpaddr);
 extern void	pmac_xpram_write(int xpaddr, u8 data);
 
-#endif /* __KERNEL__ */
-
 /* Some offsets in XPRAM */
 #define PMAC_XPRAM_MACHINE_LOC	0xe4
 #define PMAC_XPRAM_SOUND_VOLUME	0x08

include/asm-ppc/page.h

@@ -62,7 +62,7 @@ typedef unsigned long pgprot_t;
 
 
 /* align addr on a size boundry - adjust address up if needed -- Cort */
-#define _ALIGN(addr,size)	(((addr)+size-1)&(~(size-1)))
+#define _ALIGN(addr,size)	(((addr)+(size)-1)&(~((size)-1)))
 
 /* to align the pointer to the (next) page boundary */
 #define PAGE_ALIGN(addr)	(((addr)+PAGE_SIZE-1)&PAGE_MASK)

include/asm-ppc/param.h

@@ -9,7 +9,7 @@
 #define HZ		100		/* internal timer frequency */
 #define USER_HZ		100		/* for user interfaces in "ticks" */
 #define CLOCKS_PER_SEC	(USER_HZ)	/* frequency at which times() counts */
-#endif
+#endif /* __KERNEL__ */
 
 #define EXEC_PAGESIZE	4096
 

include/asm-ppc/signal.h

@@ -111,7 +111,7 @@ typedef struct {
 #define SA_PROBE		SA_ONESHOT
 #define SA_SAMPLE_RANDOM	SA_RESTART
 #define SA_SHIRQ		0x04000000
-#endif
+#endif /* __KERNEL__ */
 
 #define SIG_BLOCK          0	/* for blocking signals */
 #define SIG_UNBLOCK        1	/* for unblocking signals */
@@ -150,7 +150,6 @@ typedef struct sigaltstack {
 
 #ifdef __KERNEL__
 #include <asm/sigcontext.h>
-
-#endif
+#endif /* __KERNEL__ */
 
 #endif

include/asm-ppc/socket.h

@@ -65,6 +65,6 @@
 					/* other similar things on the	*/
 					/* user level.			*/
 #define	SOCK_MAX	(SOCK_PACKET+1)
-#endif
+#endif /* __KERNEL__ */
 
 #endif /* _ASM_SOCKET_H */

include/asm-ppc/termios.h

@@ -153,7 +153,7 @@ struct termio {
 #ifdef __KERNEL__
 /*                   ^C  ^\ del  ^U  ^D   1   0   0   0   0  ^W  ^R  ^Z  ^Q  ^S  ^V  ^U  */
 #define INIT_C_CC "\003\034\177\025\004\001\000\000\000\000\027\022\032\021\023\026\025" 
-#endif
+#endif	/* __KERNEL__ */
 
 /* modem lines */
 #define TIOCM_LE	0x001