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authorDavid S. Miller <davem@davemloft.net>2010-12-10 16:34:10 -0800
committerDavid S. Miller <davem@davemloft.net>2010-12-10 16:34:10 -0800
commit23bcbf1b63350ed529f7dfb8a5c459e6e0c1a3ca (patch)
treeda1b9a4fa3b31895d196d44a3b172af024aaa0af /arch/sparc
parentMerge branches 'x86-fixes-for-linus', 'perf-fixes-for-linus' and 'sched-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip (diff)
parentsparc: Write to prom console using indirect buffer. (diff)
downloadlinux-dev-23bcbf1b63350ed529f7dfb8a5c459e6e0c1a3ca.tar.xz
linux-dev-23bcbf1b63350ed529f7dfb8a5c459e6e0c1a3ca.zip
Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/sparc-2.6
Diffstat (limited to '')
-rw-r--r--arch/sparc/include/asm/openprom.h2
-rw-r--r--arch/sparc/include/asm/oplib_32.h35
-rw-r--r--arch/sparc/include/asm/oplib_64.h46
-rw-r--r--arch/sparc/kernel/leon_kernel.c4
-rw-r--r--arch/sparc/prom/Makefile1
-rw-r--r--arch/sparc/prom/console_32.c65
-rw-r--r--arch/sparc/prom/console_64.c81
-rw-r--r--arch/sparc/prom/devops_32.c87
-rw-r--r--arch/sparc/prom/devops_64.c67
-rw-r--r--arch/sparc/prom/misc_64.c16
-rw-r--r--arch/sparc/prom/printf.c35
-rw-r--r--arch/sparc/prom/tree_32.c16
-rw-r--r--arch/sparc/prom/tree_64.c18
13 files changed, 64 insertions, 409 deletions
diff --git a/arch/sparc/include/asm/openprom.h b/arch/sparc/include/asm/openprom.h
index 81cd43432dc0..47eaafad15ce 100644
--- a/arch/sparc/include/asm/openprom.h
+++ b/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, char *buf, int nbytes);
+ int (*v2_dev_write)(int d, const char *buf, int nbytes);
int (*v2_dev_seek)(int d, int hi, int lo);
/* Never issued (multistage load support) */
diff --git a/arch/sparc/include/asm/oplib_32.h b/arch/sparc/include/asm/oplib_32.h
index 51296a6f5005..9e5c64084b86 100644
--- a/arch/sparc/include/asm/oplib_32.h
+++ b/arch/sparc/include/asm/oplib_32.h
@@ -60,25 +60,6 @@ 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. */
@@ -121,19 +102,8 @@ extern int prom_getrev(void);
/* Get the prom firmware revision. */
extern int prom_getprev(void);
-/* 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);
+/* Write a buffer of characters to the console. */
+extern void prom_console_write_buf(const char *buf, int len);
/* Prom's internal routines, don't use in kernel/boot code. */
extern void prom_printf(const char *fmt, ...);
@@ -238,7 +208,6 @@ 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... */
diff --git a/arch/sparc/include/asm/oplib_64.h b/arch/sparc/include/asm/oplib_64.h
index c9cc078e3e31..8cd0df34e82b 100644
--- a/arch/sparc/include/asm/oplib_64.h
+++ b/arch/sparc/include/asm/oplib_64.h
@@ -67,27 +67,6 @@ 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. */
@@ -109,33 +88,14 @@ 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);
-/* 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);
+/* Write a buffer of characters to the console. */
+extern void prom_console_write_buf(const char *buf, int len);
/* Prom's internal routines, don't use in kernel/boot code. */
extern void prom_printf(const char *fmt, ...);
@@ -279,9 +239,7 @@ 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);
diff --git a/arch/sparc/kernel/leon_kernel.c b/arch/sparc/kernel/leon_kernel.c
index 2d51527d810f..f01c42661ee5 100644
--- a/arch/sparc/kernel/leon_kernel.c
+++ b/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 / 100) - 1)));
+ (((1000000 / HZ) - 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, (((1000000/100) - 1)));
+ LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[1].rld, (((1000000/HZ) - 1)));
LEON3_BYPASS_STORE_PA(&leon3_gptimer_regs->e[1].ctrl, 0);
# endif
diff --git a/arch/sparc/prom/Makefile b/arch/sparc/prom/Makefile
index 1b8c073adb44..816c0fa12dc0 100644
--- a/arch/sparc/prom/Makefile
+++ b/arch/sparc/prom/Makefile
@@ -6,7 +6,6 @@ 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
diff --git a/arch/sparc/prom/console_32.c b/arch/sparc/prom/console_32.c
index 5340264b78f5..48863108a44c 100644
--- a/arch/sparc/prom/console_32.c
+++ b/arch/sparc/prom/console_32.c
@@ -16,63 +16,26 @@
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.
*/
-int
-prom_nbputchar(char c)
+static int prom_nbputchar(const char *buf)
{
- 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))(c);
+ i = (*(romvec->pv_nbputchar))(*buf);
break;
case PROM_V2:
case PROM_V3:
- outc = c;
- if( (*(romvec->pv_v2devops).v2_dev_write)(*romvec->pv_v2bootargs.fd_stdout, &outc, 0x1) == 1)
+ if ((*(romvec->pv_v2devops).v2_dev_write)(*romvec->pv_v2bootargs.fd_stdout,
+ buf, 0x1) == 1)
i = 0;
- else
- i = -1;
break;
default:
- i = -1;
break;
};
restore_current();
@@ -80,18 +43,14 @@ prom_nbputchar(char c)
return i; /* Ugh, we could spin forever on unsupported proms ;( */
}
-/* Blocking version of get character routine above. */
-char
-prom_getchar(void)
+void prom_console_write_buf(const char *buf, int len)
{
- int character;
- while((character = prom_nbgetchar()) == -1) ;
- return (char) character;
+ while (len) {
+ int n = prom_nbputchar(buf);
+ if (n)
+ continue;
+ len--;
+ buf++;
+ }
}
-/* Blocking version of put character routine above. */
-void
-prom_putchar(char c)
-{
- while(prom_nbputchar(c) == -1) ;
-}
diff --git a/arch/sparc/prom/console_64.c b/arch/sparc/prom/console_64.c
index 10322dc2f557..ed39e75828bd 100644
--- a/arch/sparc/prom/console_64.c
+++ b/arch/sparc/prom/console_64.c
@@ -15,85 +15,34 @@
extern int prom_stdin, prom_stdout;
-/* Non blocking get character from console input device, returns -1
- * if no input was taken. This can be used for polling.
- */
-inline int
-prom_nbgetchar(void)
-{
- unsigned long args[7];
- char inc;
-
- args[0] = (unsigned long) "read";
- args[1] = 3;
- args[2] = 1;
- args[3] = (unsigned int) prom_stdin;
- args[4] = (unsigned long) &inc;
- args[5] = 1;
- args[6] = (unsigned long) -1;
-
- p1275_cmd_direct(args);
-
- if (args[6] == 1)
- return inc;
- return -1;
-}
-
-/* Non blocking put character to console device, returns -1 if
- * unsuccessful.
- */
-inline int
-prom_nbputchar(char c)
+static int __prom_console_write_buf(const char *buf, int len)
{
unsigned long args[7];
- char outc;
-
- outc = c;
+ int ret;
args[0] = (unsigned long) "write";
args[1] = 3;
args[2] = 1;
args[3] = (unsigned int) prom_stdout;
- args[4] = (unsigned long) &outc;
- args[5] = 1;
+ args[4] = (unsigned long) buf;
+ args[5] = (unsigned int) len;
args[6] = (unsigned long) -1;
p1275_cmd_direct(args);
- if (args[6] == 1)
- return 0;
- else
+ ret = (int) args[6];
+ if (ret < 0)
return -1;
+ return ret;
}
-/* Blocking version of get character routine above. */
-char
-prom_getchar(void)
-{
- int character;
- while((character = prom_nbgetchar()) == -1) ;
- return (char) character;
-}
-
-/* Blocking version of put character routine above. */
-void
-prom_putchar(char c)
+void prom_console_write_buf(const char *buf, int len)
{
- prom_nbputchar(c);
-}
-
-void
-prom_puts(const char *s, int len)
-{
- unsigned long args[7];
-
- args[0] = (unsigned long) "write";
- args[1] = 3;
- args[2] = 1;
- args[3] = (unsigned int) prom_stdout;
- args[4] = (unsigned long) s;
- args[5] = len;
- args[6] = (unsigned long) -1;
-
- p1275_cmd_direct(args);
+ while (len) {
+ int n = __prom_console_write_buf(buf, len);
+ if (n < 0)
+ continue;
+ len -= n;
+ buf += len;
+ }
}
diff --git a/arch/sparc/prom/devops_32.c b/arch/sparc/prom/devops_32.c
deleted file mode 100644
index 9c5d4687242a..000000000000
--- a/arch/sparc/prom/devops_32.c
+++ /dev/null
@@ -1,87 +0,0 @@
-/*
- * devops.c: Device operations using the PROM.
- *
- * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
- */
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-
-#include <asm/openprom.h>
-#include <asm/oplib.h>
-
-extern void restore_current(void);
-
-/* Open the device described by the string 'dstr'. Returns the handle
- * to that device used for subsequent operations on that device.
- * Returns -1 on failure.
- */
-int
-prom_devopen(char *dstr)
-{
- int handle;
- unsigned long flags;
- spin_lock_irqsave(&prom_lock, flags);
- switch(prom_vers) {
- case PROM_V0:
- handle = (*(romvec->pv_v0devops.v0_devopen))(dstr);
- if(handle == 0) handle = -1;
- break;
- case PROM_V2:
- case PROM_V3:
- handle = (*(romvec->pv_v2devops.v2_dev_open))(dstr);
- break;
- default:
- handle = -1;
- break;
- };
- restore_current();
- spin_unlock_irqrestore(&prom_lock, flags);
-
- return handle;
-}
-
-/* Close the device described by device handle 'dhandle'. */
-int
-prom_devclose(int dhandle)
-{
- unsigned long flags;
- spin_lock_irqsave(&prom_lock, flags);
- switch(prom_vers) {
- case PROM_V0:
- (*(romvec->pv_v0devops.v0_devclose))(dhandle);
- break;
- case PROM_V2:
- case PROM_V3:
- (*(romvec->pv_v2devops.v2_dev_close))(dhandle);
- break;
- default:
- break;
- };
- restore_current();
- spin_unlock_irqrestore(&prom_lock, flags);
- return 0;
-}
-
-/* Seek to specified location described by 'seekhi' and 'seeklo'
- * for device 'dhandle'.
- */
-void
-prom_seek(int dhandle, unsigned int seekhi, unsigned int seeklo)
-{
- unsigned long flags;
- spin_lock_irqsave(&prom_lock, flags);
- switch(prom_vers) {
- case PROM_V0:
- (*(romvec->pv_v0devops.v0_seekdev))(dhandle, seekhi, seeklo);
- break;
- case PROM_V2:
- case PROM_V3:
- (*(romvec->pv_v2devops.v2_dev_seek))(dhandle, seekhi, seeklo);
- break;
- default:
- break;
- };
- restore_current();
- spin_unlock_irqrestore(&prom_lock, flags);
-}
diff --git a/arch/sparc/prom/devops_64.c b/arch/sparc/prom/devops_64.c
deleted file mode 100644
index a017119e7ef1..000000000000
--- a/arch/sparc/prom/devops_64.c
+++ /dev/null
@@ -1,67 +0,0 @@
-/*
- * devops.c: Device operations using the PROM.
- *
- * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
- * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
- */
-#include <linux/types.h>
-#include <linux/kernel.h>
-#include <linux/sched.h>
-
-#include <asm/openprom.h>
-#include <asm/oplib.h>
-
-/* Open the device described by the string 'dstr'. Returns the handle
- * to that device used for subsequent operations on that device.
- * Returns 0 on failure.
- */
-int
-prom_devopen(const char *dstr)
-{
- unsigned long args[5];
-
- args[0] = (unsigned long) "open";
- args[1] = 1;
- args[2] = 1;
- args[3] = (unsigned long) dstr;
- args[4] = (unsigned long) -1;
-
- p1275_cmd_direct(args);
-
- return (int) args[4];
-}
-
-/* Close the device described by device handle 'dhandle'. */
-int
-prom_devclose(int dhandle)
-{
- unsigned long args[4];
-
- args[0] = (unsigned long) "close";
- args[1] = 1;
- args[2] = 0;
- args[3] = (unsigned int) dhandle;
-
- p1275_cmd_direct(args);
-
- return 0;
-}
-
-/* Seek to specified location described by 'seekhi' and 'seeklo'
- * for device 'dhandle'.
- */
-void
-prom_seek(int dhandle, unsigned int seekhi, unsigned int seeklo)
-{
- unsigned long args[7];
-
- args[0] = (unsigned long) "seek";
- args[1] = 3;
- args[2] = 1;
- args[3] = (unsigned int) dhandle;
- args[4] = seekhi;
- args[5] = seeklo;
- args[6] = (unsigned long) -1;
-
- p1275_cmd_direct(args);
-}
diff --git a/arch/sparc/prom/misc_64.c b/arch/sparc/prom/misc_64.c
index d24bc44e361e..e4f31d4d3715 100644
--- a/arch/sparc/prom/misc_64.c
+++ b/arch/sparc/prom/misc_64.c
@@ -18,7 +18,7 @@
#include <asm/system.h>
#include <asm/ldc.h>
-int prom_service_exists(const char *service_name)
+static int prom_service_exists(const char *service_name)
{
unsigned long args[5];
@@ -150,20 +150,6 @@ void prom_halt_power_off(void)
prom_halt();
}
-/* Set prom sync handler to call function 'funcp'. */
-void prom_setcallback(callback_func_t funcp)
-{
- unsigned long args[5];
- if (!funcp)
- return;
- args[0] = (unsigned long) "set-callback";
- args[1] = 1;
- args[2] = 1;
- args[3] = (unsigned long) funcp;
- args[4] = (unsigned long) -1;
- p1275_cmd_direct(args);
-}
-
/* Get the idprom and stuff it into buffer 'idbuf'. Returns the
* format type. 'num_bytes' is the number of bytes that your idbuf
* has space for. Returns 0xff on error.
diff --git a/arch/sparc/prom/printf.c b/arch/sparc/prom/printf.c
index ca869266b9f3..d9682f06b3b0 100644
--- a/arch/sparc/prom/printf.c
+++ b/arch/sparc/prom/printf.c
@@ -15,22 +15,45 @@
#include <linux/kernel.h>
#include <linux/compiler.h>
+#include <linux/spinlock.h>
#include <asm/openprom.h>
#include <asm/oplib.h>
+#define CONSOLE_WRITE_BUF_SIZE 1024
+
static char ppbuf[1024];
+static char console_write_buf[CONSOLE_WRITE_BUF_SIZE];
+static DEFINE_RAW_SPINLOCK(console_write_lock);
void notrace prom_write(const char *buf, unsigned int n)
{
- char ch;
+ unsigned int dest_len;
+ unsigned long flags;
+ char *dest;
+
+ dest = console_write_buf;
+ raw_spin_lock_irqsave(&console_write_lock, flags);
- while (n != 0) {
- --n;
- if ((ch = *buf++) == '\n')
- prom_putchar('\r');
- prom_putchar(ch);
+ dest_len = 0;
+ while (n-- != 0) {
+ char ch = *buf++;
+ if (ch == '\n') {
+ *dest++ = '\r';
+ dest_len++;
+ }
+ *dest++ = ch;
+ dest_len++;
+ if (dest_len >= CONSOLE_WRITE_BUF_SIZE - 1) {
+ prom_console_write_buf(console_write_buf, dest_len);
+ dest = console_write_buf;
+ dest_len = 0;
+ }
}
+ if (dest_len)
+ prom_console_write_buf(console_write_buf, dest_len);
+
+ raw_spin_unlock_irqrestore(&console_write_lock, flags);
}
void notrace prom_printf(const char *fmt, ...)
diff --git a/arch/sparc/prom/tree_32.c b/arch/sparc/prom/tree_32.c
index 63e08e149774..535e2e69ac1d 100644
--- a/arch/sparc/prom/tree_32.c
+++ b/arch/sparc/prom/tree_32.c
@@ -342,19 +342,3 @@ phandle prom_inst2pkg(int inst)
if (node == -1) return 0;
return node;
}
-
-/* Return 'node' assigned to a particular prom 'path'
- * FIXME: Should work for v0 as well
- */
-phandle prom_pathtoinode(char *path)
-{
- phandle node;
- int inst;
-
- inst = prom_devopen (path);
- if (inst == -1) return 0;
- node = prom_inst2pkg (inst);
- prom_devclose (inst);
- if (node == -1) return 0;
- return node;
-}
diff --git a/arch/sparc/prom/tree_64.c b/arch/sparc/prom/tree_64.c
index 691be68932f8..d93660048376 100644
--- a/arch/sparc/prom/tree_64.c
+++ b/arch/sparc/prom/tree_64.c
@@ -374,24 +374,6 @@ inline phandle prom_inst2pkg(int inst)
return node;
}
-/* Return 'node' assigned to a particular prom 'path'
- * FIXME: Should work for v0 as well
- */
-phandle prom_pathtoinode(const char *path)
-{
- phandle node;
- int inst;
-
- inst = prom_devopen (path);
- if (inst == 0)
- return 0;
- node = prom_inst2pkg(inst);
- prom_devclose(inst);
- if (node == -1)
- return 0;
- return node;
-}
-
int prom_ihandle2path(int handle, char *buffer, int bufsize)
{
unsigned long args[7];