---

yaml
---
r: 223271
b: refs/heads/master
c: f91e2c3
h: refs/heads/master
i:
  223269: e60de88
  223267: 2f51b9e
  223263: 6b9647f
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 478b2a34e7d496b0cc3ae7696362740f954c91ba
+refs/heads/master: f91e2c3bd427239c198351f44814dd39db91afe0

trunk/Documentation/filesystems/Locking

@@ -173,13 +173,12 @@ prototypes:
 	sector_t (*bmap)(struct address_space *, sector_t);
 	int (*invalidatepage) (struct page *, unsigned long);
 	int (*releasepage) (struct page *, int);
-	void (*freepage)(struct page *);
 	int (*direct_IO)(int, struct kiocb *, const struct iovec *iov,
 			loff_t offset, unsigned long nr_segs);
 	int (*launder_page) (struct page *);
 
 locking rules:
-	All except set_page_dirty and freepage may block
+	All except set_page_dirty may block
 
 			BKL	PageLocked(page)	i_mutex
 writepage:		no	yes, unlocks (see below)
@@ -194,7 +193,6 @@ perform_write:		no	n/a			yes
 bmap:			no
 invalidatepage:		no	yes
 releasepage:		no	yes
-freepage:		no	yes
 direct_IO:		no
 launder_page:		no	yes
 
@@ -290,9 +288,6 @@ buffers from the page in preparation for freeing it.  It returns zero to
 indicate that the buffers are (or may be) freeable.  If ->releasepage is zero,
 the kernel assumes that the fs has no private interest in the buffers.
 
-	->freepage() is called when the kernel is done dropping the page
-from the page cache.
-
 	->launder_page() may be called prior to releasing a page if
 it is still found to be dirty. It returns zero if the page was successfully
 cleaned, or an error value if not. Note that in order to prevent the page

trunk/Documentation/filesystems/vfs.txt

@@ -534,7 +534,6 @@ struct address_space_operations {
 	sector_t (*bmap)(struct address_space *, sector_t);
 	int (*invalidatepage) (struct page *, unsigned long);
 	int (*releasepage) (struct page *, int);
-	void (*freepage)(struct page *);
 	ssize_t (*direct_IO)(int, struct kiocb *, const struct iovec *iov,
 			loff_t offset, unsigned long nr_segs);
 	struct page* (*get_xip_page)(struct address_space *, sector_t,
@@ -679,12 +678,6 @@ struct address_space_operations {
         need to ensure this.  Possibly it can clear the PageUptodate
         bit if it cannot free private data yet.
 
-  freepage: freepage is called once the page is no longer visible in
-        the page cache in order to allow the cleanup of any private
-	data. Since it may be called by the memory reclaimer, it
-	should not assume that the original address_space mapping still
-	exists, and it should not block.
-
   direct_IO: called by the generic read/write routines to perform
         direct_IO - that is IO requests which bypass the page cache
         and transfer data directly between the storage and the

trunk/MAINTAINERS

@@ -5932,6 +5932,7 @@ F:	include/linux/tty.h
 
 TULIP NETWORK DRIVERS
 M:	Grant Grundler <grundler@parisc-linux.org>
+M:	Kyle McMartin <kyle@mcmartin.ca>
 L:	netdev@vger.kernel.org
 S:	Maintained
 F:	drivers/net/tulip/

trunk/arch/arm/mm/proc-macros.S

@@ -61,14 +61,14 @@
 	.endm
 
 /*
- * cache_line_size - get the cache line size from the CSIDR register
- * (available on ARMv7+). It assumes that the CSSR register was configured
- * to access the L1 data cache CSIDR.
+ * dcache_line_size - get the minimum D-cache line size from the CTR register
+ * on ARMv7.
  */
 	.macro	dcache_line_size, reg, tmp
-	mrc	p15, 1, \tmp, c0, c0, 0		@ read CSIDR
-	and	\tmp, \tmp, #7			@ cache line size encoding
-	mov	\reg, #16			@ size offset
+	mrc	p15, 0, \tmp, c0, c0, 1		@ read ctr
+	lsr	\tmp, \tmp, #16
+	and	\tmp, \tmp, #0xf		@ cache line size encoding
+	mov	\reg, #4			@ bytes per word
 	mov	\reg, \reg, lsl \tmp		@ actual cache line size
 	.endm
 

trunk/arch/sparc/include/asm/openprom.h

@@ -39,7 +39,7 @@ struct linux_dev_v2_funcs {
 	int (*v2_dev_open)(char *devpath);
 	void (*v2_dev_close)(int d);
 	int (*v2_dev_read)(int d, char *buf, int nbytes);
-	int (*v2_dev_write)(int d, const char *buf, int nbytes);
+	int (*v2_dev_write)(int d, char *buf, int nbytes);
 	int (*v2_dev_seek)(int d, int hi, int lo);
 
 	/* Never issued (multistage load support) */

trunk/arch/sparc/include/asm/oplib_32.h

@@ -60,6 +60,25 @@ extern char *prom_getbootargs(void);
 extern char *prom_mapio(char *virt_hint, int io_space, unsigned int phys_addr, unsigned int num_bytes);
 extern void prom_unmapio(char *virt_addr, unsigned int num_bytes);
 
+/* Device operations. */
+
+/* Open the device described by the passed string.  Note, that the format
+ * of the string is different on V0 vs. V2->higher proms.  The caller must
+ * know what he/she is doing!  Returns the device descriptor, an int.
+ */
+extern int prom_devopen(char *device_string);
+
+/* Close a previously opened device described by the passed integer
+ * descriptor.
+ */
+extern int prom_devclose(int device_handle);
+
+/* Do a seek operation on the device described by the passed integer
+ * descriptor.
+ */
+extern void prom_seek(int device_handle, unsigned int seek_hival,
+		      unsigned int seek_lowval);
+
 /* Miscellaneous routines, don't really fit in any category per se. */
 
 /* Reboot the machine with the command line passed. */
@@ -102,8 +121,19 @@ extern int prom_getrev(void);
 /* Get the prom firmware revision. */
 extern int prom_getprev(void);
 
-/* Write a buffer of characters to the console. */
-extern void prom_console_write_buf(const char *buf, int len);
+/* Character operations to/from the console.... */
+
+/* Non-blocking get character from console. */
+extern int prom_nbgetchar(void);
+
+/* Non-blocking put character to console. */
+extern int prom_nbputchar(char character);
+
+/* Blocking get character from console. */
+extern char prom_getchar(void);
+
+/* Blocking put character to console. */
+extern void prom_putchar(char character);
 
 /* Prom's internal routines, don't use in kernel/boot code. */
 extern void prom_printf(const char *fmt, ...);
@@ -208,6 +238,7 @@ extern int prom_node_has_property(phandle node, char *property);
 extern int prom_setprop(phandle node, const char *prop_name, char *prop_value,
 			int value_size);
 
+extern phandle prom_pathtoinode(char *path);
 extern phandle prom_inst2pkg(int);
 
 /* Dorking with Bus ranges... */

trunk/arch/sparc/include/asm/oplib_64.h

@@ -67,6 +67,27 @@ extern void prom_init(void *cif_handler, void *cif_stack);
 /* Boot argument acquisition, returns the boot command line string. */
 extern char *prom_getbootargs(void);
 
+/* Device utilities. */
+
+/* Device operations. */
+
+/* Open the device described by the passed string.  Note, that the format
+ * of the string is different on V0 vs. V2->higher proms.  The caller must
+ * know what he/she is doing!  Returns the device descriptor, an int.
+ */
+extern int prom_devopen(const char *device_string);
+
+/* Close a previously opened device described by the passed integer
+ * descriptor.
+ */
+extern int prom_devclose(int device_handle);
+
+/* Do a seek operation on the device described by the passed integer
+ * descriptor.
+ */
+extern void prom_seek(int device_handle, unsigned int seek_hival,
+		      unsigned int seek_lowval);
+
 /* Miscellaneous routines, don't really fit in any category per se. */
 
 /* Reboot the machine with the command line passed. */
@@ -88,14 +109,33 @@ extern void prom_halt(void) __attribute__ ((noreturn));
 /* Halt and power-off the machine. */
 extern void prom_halt_power_off(void) __attribute__ ((noreturn));
 
+/* Set the PROM 'sync' callback function to the passed function pointer.
+ * When the user gives the 'sync' command at the prom prompt while the
+ * kernel is still active, the prom will call this routine.
+ *
+ */
+typedef int (*callback_func_t)(long *cmd);
+extern void prom_setcallback(callback_func_t func_ptr);
+
 /* Acquire the IDPROM of the root node in the prom device tree.  This
  * gets passed a buffer where you would like it stuffed.  The return value
  * is the format type of this idprom or 0xff on error.
  */
 extern unsigned char prom_get_idprom(char *idp_buffer, int idpbuf_size);
 
-/* Write a buffer of characters to the console. */
-extern void prom_console_write_buf(const char *buf, int len);
+/* Character operations to/from the console.... */
+
+/* Non-blocking get character from console. */
+extern int prom_nbgetchar(void);
+
+/* Non-blocking put character to console. */
+extern int prom_nbputchar(char character);
+
+/* Blocking get character from console. */
+extern char prom_getchar(void);
+
+/* Blocking put character to console. */
+extern void prom_putchar(char character);
 
 /* Prom's internal routines, don't use in kernel/boot code. */
 extern void prom_printf(const char *fmt, ...);
@@ -239,7 +279,9 @@ extern phandle prom_finddevice(const char *name);
 extern int prom_setprop(phandle node, const char *prop_name, char *prop_value,
 			int value_size);
 
+extern phandle prom_pathtoinode(const char *path);
 extern phandle prom_inst2pkg(int);
+extern int prom_service_exists(const char *service_name);
 extern void prom_sun4v_guest_soft_state(void);
 
 extern int prom_ihandle2path(int handle, char *buffer, int bufsize);

trunk/arch/sparc/kernel/leon_kernel.c

@@ -114,7 +114,7 @@ void __init leon_init_timers(irq_handler_t counter_fn)
 	if (leon3_gptimer_regs && leon3_irqctrl_regs) {
 		LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[0].val, 0);
 		LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[0].rld,
-				      (((1000000 / HZ) - 1)));
+				      (((1000000 / 100) - 1)));
 		LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[0].ctrl, 0);
 
 #ifdef CONFIG_SMP
@@ -128,7 +128,7 @@ void __init leon_init_timers(irq_handler_t counter_fn)
 		}
 
 		LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[1].val, 0);
-		LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[1].rld, (((1000000/HZ) - 1)));
+		LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[1].rld, (((1000000/100) - 1)));
 		LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[1].ctrl, 0);
 # endif
 

trunk/arch/sparc/prom/Makefile

@@ -6,6 +6,7 @@ ccflags := -Werror
 
 lib-y                 := bootstr_$(BITS).o
 lib-$(CONFIG_SPARC32) += devmap.o
+lib-y                 += devops_$(BITS).o
 lib-y                 += init_$(BITS).o
 lib-$(CONFIG_SPARC32) += memory.o
 lib-y                 += misc_$(BITS).o

trunk/arch/sparc/prom/console_32.c

@@ -16,41 +16,82 @@
 
 extern void restore_current(void);
 
+/* Non blocking get character from console input device, returns -1
+ * if no input was taken.  This can be used for polling.
+ */
+int
+prom_nbgetchar(void)
+{
+	static char inc;
+	int i = -1;
+	unsigned long flags;
+
+	spin_lock_irqsave(&prom_lock, flags);
+	switch(prom_vers) {
+	case PROM_V0:
+		i = (*(romvec->pv_nbgetchar))();
+		break;
+	case PROM_V2:
+	case PROM_V3:
+		if( (*(romvec->pv_v2devops).v2_dev_read)(*romvec->pv_v2bootargs.fd_stdin , &inc, 0x1) == 1) {
+			i = inc;
+		} else {
+			i = -1;
+		}
+		break;
+	default:
+		i = -1;
+		break;
+	};
+	restore_current();
+	spin_unlock_irqrestore(&prom_lock, flags);
+	return i; /* Ugh, we could spin forever on unsupported proms ;( */
+}
+
 /* Non blocking put character to console device, returns -1 if
  * unsuccessful.
  */
-static int prom_nbputchar(const char *buf)
+int
+prom_nbputchar(char c)
 {
+	static char outc;
 	unsigned long flags;
 	int i = -1;
 
 	spin_lock_irqsave(&prom_lock, flags);
 	switch(prom_vers) {
 	case PROM_V0:
-		i = (*(romvec->pv_nbputchar))(*buf);
+		i = (*(romvec->pv_nbputchar))(c);
 		break;
 	case PROM_V2:
 	case PROM_V3:
-		if ((*(romvec->pv_v2devops).v2_dev_write)(*romvec->pv_v2bootargs.fd_stdout,
-							  buf, 0x1) == 1)
+		outc = c;
+		if( (*(romvec->pv_v2devops).v2_dev_write)(*romvec->pv_v2bootargs.fd_stdout, &outc, 0x1) == 1)
 			i = 0;
+		else
+			i = -1;
 		break;
 	default:
+		i = -1;
 		break;
 	};
 	restore_current();
 	spin_unlock_irqrestore(&prom_lock, flags);
 	return i; /* Ugh, we could spin forever on unsupported proms ;( */
 }
 
-void prom_console_write_buf(const char *buf, int len)
+/* Blocking version of get character routine above. */
+char
+prom_getchar(void)
 {
-	while (len) {
-		int n = prom_nbputchar(buf);
-		if (n)
-			continue;
-		len--;
-		buf++;
-	}
+	int character;
+	while((character = prom_nbgetchar()) == -1) ;
+	return (char) character;
 }
 
+/* Blocking version of put character routine above. */
+void
+prom_putchar(char c)
+{
+	while(prom_nbputchar(c) == -1) ;
+}