Commit cd4aa976 authored by Keith M. Wesolowski's avatar Keith M. Wesolowski

Merge foobazco.org:/sources/2.5-bk

into foobazco.org:/sources/2.5-sparc-smp
parents 9a45400e 48a975d3
......@@ -32,6 +32,7 @@
#include <asm/obio.h>
#include <asm/mxcc.h>
#include <asm/thread_info.h>
#include <asm/param.h>
#include <asm/asmmacro.h>
......@@ -1808,36 +1809,37 @@ fpload:
retl
nop
.globl ndelay
ndelay:
/* __ndelay and __udelay take two arguments:
* 0 - nsecs or usecs to delay
* 1 - per_cpu udelay_val (loops per jiffy)
*
* Note that ndelay gives HZ times higher resolution but has a 10ms
* limit. udelay can handle up to 1s.
*/
.globl __ndelay
__ndelay:
save %sp, -STACKFRAME_SZ, %sp
mov %i0, %o0
call .umul
mov 5, %o1
mov 0x1ad, %o1 ! 2**32 / (1 000 000 000 / HZ)
call .umul
mov %i1, %o1 ! udelay_val
ba delay_continue
nop
mov %o1, %o0 ! >>32 later for better resolution
.globl udelay
udelay:
.globl __udelay
__udelay:
save %sp, -STACKFRAME_SZ, %sp
mov %i0, %o0
sethi %hi(0x10c6), %o1
call .umul
or %o1, %lo(0x10c6), %o1
delay_continue:
#ifndef CONFIG_SMP
sethi %hi(loops_per_jiffy), %o3
or %o1, %lo(0x10c6), %o1 ! 2**32 / 1 000 000
call .umul
ld [%o3 + %lo(loops_per_jiffy)], %o1
#else
GET_PROCESSOR_OFFSET(o4, o2)
set cpu_data, %o3
call .umul
ld [%o3 + %o4], %o1
#endif
mov %i1, %o1 ! udelay_val
call .umul
mov 100, %o0
mov HZ, %o0 ! >>32 earlier for wider range
delay_continue:
cmp %o0, 0x0
1:
bne 1b
......
......@@ -20,11 +20,11 @@
#include <linux/fs.h>
#include <linux/seq_file.h>
#include <linux/cache.h>
#include <linux/delay.h>
#include <asm/ptrace.h>
#include <asm/atomic.h>
#include <asm/delay.h>
#include <asm/irq.h>
#include <asm/page.h>
#include <asm/pgalloc.h>
......
......@@ -164,8 +164,8 @@ EXPORT_SYMBOL(__cpu_number_map);
EXPORT_SYMBOL(__cpu_logical_map);
#endif
EXPORT_SYMBOL(udelay);
EXPORT_SYMBOL(ndelay);
EXPORT_SYMBOL(__udelay);
EXPORT_SYMBOL(__ndelay);
EXPORT_SYMBOL(rtc_lock);
EXPORT_SYMBOL(mostek_lock);
EXPORT_SYMBOL(mstk48t02_regs);
......
......@@ -49,7 +49,6 @@ static int smp_highest_cpu;
extern int smp_threads_ready;
extern volatile unsigned long cpu_callin_map[NR_CPUS];
extern struct cpuinfo_sparc cpu_data[NR_CPUS];
extern unsigned long cpu_offset[NR_CPUS];
extern unsigned char boot_cpu_id;
extern int smp_activated;
extern volatile int __cpu_number_map[NR_CPUS];
......@@ -171,9 +170,6 @@ void __init smp4d_boot_cpus(void)
printk("Entering SMP Mode...\n");
for (i = 0; i < NR_CPUS; i++)
cpu_offset[i] = (char *)&(cpu_data(i)) - (char *)&(cpu_data(0));
if (boot_cpu_id)
current_set[0] = NULL;
......@@ -427,9 +423,6 @@ void smp4d_message_pass(int target, int msg, unsigned long data, int wait)
extern void sparc_do_profile(unsigned long pc, unsigned long o7);
#define prof_multiplier(__cpu) cpu_data(__cpu).multiplier
#define prof_counter(__cpu) cpu_data(__cpu).counter
void smp4d_percpu_timer_interrupt(struct pt_regs *regs)
{
int cpu = hard_smp4d_processor_id();
......
......@@ -44,7 +44,6 @@ extern unsigned long cpu_present_map;
extern int smp_num_cpus;
extern int smp_threads_ready;
extern volatile unsigned long cpu_callin_map[NR_CPUS];
extern unsigned long cpu_offset[NR_CPUS];
extern unsigned char boot_cpu_id;
extern int smp_activated;
extern volatile int __cpu_number_map[NR_CPUS];
......@@ -152,9 +151,7 @@ void __init smp4m_boot_cpus(void)
for (i = 0; !cpu_find_by_instance(i, NULL, &mid); i++)
cpu_present_map |= (1<<mid);
/* XXX cpu_offset is broken -Keith */
for(i=0; i < NR_CPUS; i++) {
cpu_offset[i] = (char *)&(cpu_data(i)) - (char *)&(cpu_data(0));
__cpu_number_map[i] = -1;
__cpu_logical_map[i] = -1;
}
......@@ -409,9 +406,6 @@ void smp4m_cross_call_irq(void)
extern void sparc_do_profile(unsigned long pc, unsigned long o7);
#define prof_multiplier(__cpu) cpu_data(__cpu).multiplier
#define prof_counter(__cpu) cpu_data(__cpu).counter
void smp4m_percpu_timer_interrupt(struct pt_regs *regs)
{
int cpu = smp_processor_id();
......
......@@ -29,13 +29,6 @@
srl %reg, 12, %reg; \
and %reg, 3, %reg;
#define GET_PROCESSOR_OFFSET(reg, tmp) \
GET_PROCESSOR_ID(reg) \
sethi %hi(cpu_offset), %tmp; \
sll %reg, 2, %reg; \
or %tmp, %lo(cpu_offset), %tmp; \
ld [%tmp + %reg], %reg;
/* All trap entry points _must_ begin with this macro or else you
* lose. It makes sure the kernel has a proper window so that
* c-code can be called.
......
......@@ -7,7 +7,8 @@
#ifndef __SPARC_DELAY_H
#define __SPARC_DELAY_H
extern unsigned long loops_per_jiffy;
#include <linux/config.h>
#include <asm/cpudata.h>
extern __inline__ void __delay(unsigned long loops)
{
......@@ -20,7 +21,15 @@ extern __inline__ void __delay(unsigned long loops)
}
/* This is too messy with inline asm on the Sparc. */
extern void udelay(unsigned long usecs);
extern void ndelay(unsigned long usecs);
extern void __udelay(unsigned long usecs, unsigned long lpj);
extern void __ndelay(unsigned long nsecs, unsigned long lpj);
#ifdef CONFIG_SMP
#define __udelay_val cpu_data(smp_processor_id()).udelay_val
#else /* SMP */
#define __udelay_val loops_per_jiffy
#endif /* SMP */
#define udelay(__usecs) __udelay(__usecs, __udelay_val)
#define ndelay(__nsecs) __ndelay(__nsecs, __udelay_val)
#endif /* defined(__SPARC_DELAY_H) */
......@@ -148,7 +148,10 @@ extern __inline__ int hard_smp_processor_id(void)
}
#endif
#define smp_processor_id() hard_smp_processor_id()
#define smp_processor_id() (current_thread_info()->cpu)
#define prof_multiplier(__cpu) cpu_data(__cpu).multiplier
#define prof_counter(__cpu) cpu_data(__cpu).counter
#endif /* !(__ASSEMBLY__) */
......
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