[PARISC] print more than one character at a time for pdc console
There's really no reason not to print more than one character at a
time to the PDC console... Booting is measurably speedier, and now I don't
have to watch individual characters get drawn.
Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
diff --git a/arch/parisc/kernel/firmware.c b/arch/parisc/kernel/firmware.c
index fd6552c..4ab83d5 100644
--- a/arch/parisc/kernel/firmware.c
+++ b/arch/parisc/kernel/firmware.c
@@ -1082,76 +1082,56 @@
/**
- * pdc_iodc_putc - Console character print using IODC.
- * @c: the character to output.
+ * pdc_iodc_print - Console print using IODC.
+ * @str: the string to output.
+ * @count: length of str
*
* Note that only these special chars are architected for console IODC io:
* BEL, BS, CR, and LF. Others are passed through.
* Since the HP console requires CR+LF to perform a 'newline', we translate
* "\n" to "\r\n".
*/
-void pdc_iodc_putc(unsigned char c)
+int pdc_iodc_print(unsigned char *str, unsigned count)
{
- /* XXX Should we spinlock posx usage */
- static int posx; /* for simple TAB-Simulation... */
- static int __attribute__((aligned(8))) iodc_retbuf[32];
- static char __attribute__((aligned(64))) iodc_dbuf[4096];
- unsigned int n;
+ /* XXX Should we spinlock posx usage */
+ static int posx; /* for simple TAB-Simulation... */
+ int __attribute__((aligned(8))) iodc_retbuf[32];
+ char __attribute__((aligned(64))) iodc_dbuf[4096];
+ unsigned int i;
unsigned long flags;
- switch (c) {
- case '\n':
- iodc_dbuf[0] = '\r';
- iodc_dbuf[1] = '\n';
- n = 2;
- posx = 0;
- break;
- case '\t':
- pdc_iodc_putc(' ');
- while (posx & 7) /* expand TAB */
- pdc_iodc_putc(' ');
- return; /* return since IODC can't handle this */
- case '\b':
- posx-=2; /* BS */
- default:
- iodc_dbuf[0] = c;
- n = 1;
- posx++;
- break;
- }
+ memset(iodc_dbuf, 0, 4096);
+ for (i = 0; i < count && i < 2048;) {
+ switch(str[i]) {
+ case '\n':
+ iodc_dbuf[i+0] = '\r';
+ iodc_dbuf[i+1] = '\n';
+ i += 2;
+ posx = 0;
+ break;
+ case '\t':
+ while (posx & 7) {
+ iodc_dbuf[i] = ' ';
+ i++, posx++;
+ }
+ break;
+ case '\b': /* BS */
+ posx -= 2;
+ default:
+ iodc_dbuf[i] = str[i];
+ i++, posx++;
+ break;
+ }
+ }
spin_lock_irqsave(&pdc_lock, flags);
real32_call(PAGE0->mem_cons.iodc_io,
(unsigned long)PAGE0->mem_cons.hpa, ENTRY_IO_COUT,
PAGE0->mem_cons.spa, __pa(PAGE0->mem_cons.dp.layers),
- __pa(iodc_retbuf), 0, __pa(iodc_dbuf), n, 0);
+ __pa(iodc_retbuf), 0, __pa(iodc_dbuf), i, 0);
spin_unlock_irqrestore(&pdc_lock, flags);
-}
-/**
- * pdc_iodc_outc - Console character print using IODC (without conversions).
- * @c: the character to output.
- *
- * Write the character directly to the IODC console.
- */
-void pdc_iodc_outc(unsigned char c)
-{
- unsigned int n;
- unsigned long flags;
-
- /* fill buffer with one caracter and print it */
- static int __attribute__((aligned(8))) iodc_retbuf[32];
- static char __attribute__((aligned(64))) iodc_dbuf[4096];
-
- n = 1;
- iodc_dbuf[0] = c;
-
- spin_lock_irqsave(&pdc_lock, flags);
- real32_call(PAGE0->mem_cons.iodc_io,
- (unsigned long)PAGE0->mem_cons.hpa, ENTRY_IO_COUT,
- PAGE0->mem_cons.spa, __pa(PAGE0->mem_cons.dp.layers),
- __pa(iodc_retbuf), 0, __pa(iodc_dbuf), n, 0);
- spin_unlock_irqrestore(&pdc_lock, flags);
+ return i;
}
/**
diff --git a/arch/parisc/kernel/pdc_cons.c b/arch/parisc/kernel/pdc_cons.c
index aab0576..33b1f84 100644
--- a/arch/parisc/kernel/pdc_cons.c
+++ b/arch/parisc/kernel/pdc_cons.c
@@ -55,13 +55,7 @@
static void pdc_console_write(struct console *co, const char *s, unsigned count)
{
- while(count--)
- pdc_iodc_putc(*s++);
-}
-
-void pdc_outc(unsigned char c)
-{
- pdc_iodc_outc(c);
+ pdc_iodc_print(s, count);
}
void pdc_printf(const char *fmt, ...)
@@ -74,8 +68,7 @@
len = vscnprintf(buf, sizeof(buf), fmt, args);
va_end(args);
- for (i = 0; i < len; i++)
- pdc_iodc_outc(buf[i]);
+ pdc_iodc_print(buf, len);
}
int pdc_console_poll_key(struct console *co)
diff --git a/include/asm-parisc/pdc.h b/include/asm-parisc/pdc.h
index 5e0c3ca..deda8c3 100644
--- a/include/asm-parisc/pdc.h
+++ b/include/asm-parisc/pdc.h
@@ -645,8 +645,7 @@
void pdc_io_reset(void);
void pdc_io_reset_devices(void);
int pdc_iodc_getc(void);
-void pdc_iodc_putc(unsigned char c);
-void pdc_iodc_outc(unsigned char c);
+int pdc_iodc_print(unsigned char *str, unsigned count);
void pdc_printf(const char *fmt, ...);
void pdc_emergency_unlock(void);
