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Commit 0939a7a4 authored by Linus Torvalds's avatar Linus Torvalds
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Import 2.1.30

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CREDITS
View file @ 0939a7a4
......@@ -142,8 +142,8 @@ S: Trinity College
S: Cambridge, UK. CB2 1TQ
N: Thomas Bogendoerfer
E: tsbogend@bigbug.franken.de
D: Lance32 driver
E: tsbogend@alpha.franken.de
D: PCnet32 driver
D: strace for Linux/Alpha
S: Baumgartenweg 5
S: 91452 Wilhermsdorf
......
Documentation/Configure.help
View file @ 0939a7a4
This diff is collapsed.
MAINTAINERS
View file @ 0939a7a4
......@@ -266,6 +266,14 @@ L: linux-net@vger.rutgers.edu
W: http://www.uk.linux.org/NetNews.html
S: Maintained
NETWORKING [IPv4/IPv6]:
P: David S. Miller
M: davem@caip.rutgers.edu
P: Eric Schenk
M: Eric.Schenk@dna.lth.se
L: netdev@roxanne.nuclecu.unam.mx
S: Maintained
PPP PROTOCOL DRIVERS AND COMPRESSORS
P: Al Longyear
M: longyear@pobox.com
......@@ -304,8 +312,8 @@ L: linux-smp@vger.rutgers.edu
S: Maintained
SPARC:
P: Eddie C. Dost
M: ecd@skynet.be
P: David S. Miller
M: davem@caip.rutgers.edu
L: sparclinux@vger.rutgers.edu
S: Maintained
......@@ -369,9 +377,9 @@ P: Jens Maurer
M: jmaurer@cck.uni-kl.de
S: Maintained
LANCE AND LANCE32 NETWORK DRIVER
PCNET32 NETWORK DRIVER
P: Thomas Bogendoerfer
M: tsbogend@bigbug.franken.de
M: tsbogend@alpha.franken.de
L: linux-net@vger.rutgers.edu
S: Maintained
......
Makefile
View file @ 0939a7a4
VERSION = 2
PATCHLEVEL = 1
SUBLEVEL = 29
SUBLEVEL = 30
ARCH = i386
......
Rules.make
View file @ 0939a7a4
......@@ -82,8 +82,7 @@ endif
# This make dependencies quickly
#
fastdep: dummy
if [ -n "$(wildcard *.[chS])" ]; then \
$(TOPDIR)/scripts/mkdep *.[chS] > .depend; fi
$(TOPDIR)/scripts/mkdep *.[chS] > .depend
ifdef ALL_SUB_DIRS
set -e; for i in $(ALL_SUB_DIRS); do $(MAKE) -C $$i fastdep; done
endif
......
arch/alpha/kernel/alpha_ksyms.c
View file @ 0939a7a4
......@@ -81,9 +81,11 @@ EXPORT_SYMBOL(wrusp);
EXPORT_SYMBOL(__kernel_thread);
EXPORT_SYMBOL(start_thread);
/* Networking helper routines. */
EXPORT_SYMBOL(csum_tcpudp_magic);
EXPORT_SYMBOL(ip_fast_csum);
EXPORT_SYMBOL(ip_compute_csum);
EXPORT_SYMBOL(csum_partial_copy);
/*
* The following are specially called from the uaccess assembly stubs.
......
arch/alpha/kernel/entry.S
View file @ 0939a7a4
......@@ -526,14 +526,9 @@ entSys:
ret_from_sys_call:
cmovne $26,0,$19 /* $19 = 0 => non-restartable */
/* check bottom half interrupts */
lda $0,intr_count
ldl $1,0($0)
bne $1,ret_from_handle_bh
lda $2,bh_active
ldq $3,0($2)
lda $2,bh_mask
ldq $4,0($2)
addq $1,1,$1
ldq $3,bh_active
ldq $4,bh_mask
and $3,$4,$2
bne $2,handle_bottom_half
ret_from_handle_bh:
......@@ -618,20 +613,13 @@ strace_error:
.align 3
handle_bottom_half:
/*
* We're called with $0 containing the address of
* 'intr_count' and $1 containing 'intr_count+1'
*/
stl $1,0($0) /* intr_count = 1 */
subq $30,16,$30
stq $19,0($30) /* save syscall nr */
stq $20,8($30) /* and error indication (a3) */
jsr $26,do_bottom_half
lda $0,intr_count
ldq $19,0($30)
ldq $20,8($30)
addq $30,16,$30
stl $31,0($0) /* intr_count = 0 */
br $31,ret_from_handle_bh
.align 3
......
arch/alpha/kernel/process.c
View file @ 0939a7a4
......@@ -27,6 +27,7 @@
#include <linux/stat.h>
#include <linux/mman.h>
#include <linux/elfcore.h>
#include <linux/reboot.h>
#include <asm/reg.h>
#include <asm/uaccess.h>
......@@ -63,7 +64,7 @@ asmlinkage int sys_idle(void)
return ret;
}
void hard_reset_now(void)
void machine_restart(char * __unused)
{
#if defined(CONFIG_ALPHA_SRM) && defined(CONFIG_ALPHA_ALCOR)
/* who said DEC engineer's have no sense of humor? ;-)) */
......@@ -73,6 +74,14 @@ void hard_reset_now(void)
halt();
}
void machine_halt(void)
{
}
void machine_power_off(void)
{
}
void show_regs(struct pt_regs * regs)
{
printk("\nps: %04lx pc: [<%016lx>]\n", regs->ps, regs->pc);
......
arch/i386/defconfig
View file @ 0939a7a4
......@@ -152,6 +152,7 @@ CONFIG_NET_ETHERNET=y
# CONFIG_NET_VENDOR_SMC is not set
# CONFIG_NET_ISA is not set
CONFIG_NET_EISA=y
# CONFIG_PCNET32 is not set
# CONFIG_APRICOT is not set
# CONFIG_CS89x0 is not set
CONFIG_DE4X5=y
......
arch/i386/kernel/entry.S
View file @ 0939a7a4
......@@ -153,12 +153,8 @@ ENTRY(lcall7)
ALIGN
.globl ret_from_smpfork
ret_from_smpfork:
GET_CURRENT(%ebx)
movl $NO_PROC_ID, SYMBOL_NAME(active_kernel_processor)
lock
btrl $0, SYMBOL_NAME(kernel_flag)
sti
jmp 9f
btrl $0, SYMBOL_NAME(scheduler_lock)
jmp ret_from_sys_call
#endif /* __SMP__ */
ALIGN
......@@ -187,13 +183,7 @@ ENTRY(system_call)
ret_from_intr:
ret_from_sys_call:
GET_CURRENT(%ebx)
cmpl $0,SYMBOL_NAME(intr_count)
#ifdef __SMP__
jne 2f
#else
jne 1f
#endif
9: movl SYMBOL_NAME(bh_mask),%eax
movl SYMBOL_NAME(bh_mask),%eax
andl SYMBOL_NAME(bh_active),%eax
jne handle_bottom_half
2: movl EFLAGS(%esp),%eax # mix EFLAGS and CS
......
arch/i386/kernel/i386_ksyms.c
View file @ 0939a7a4
......@@ -5,10 +5,12 @@
#include <linux/elfcore.h>
#include <linux/mca.h>
#include <linux/sched.h>
#include <linux/in6.h>
#include <asm/semaphore.h>
#include <asm/processor.h>
#include <asm/uaccess.h>
#include <asm/checksum.h>
#include <asm/io.h>
extern void dump_thread(struct pt_regs *, struct user *);
......@@ -25,8 +27,12 @@ EXPORT_SYMBOL(dump_fpu);
EXPORT_SYMBOL(ioremap);
EXPORT_SYMBOL(iounmap);
EXPORT_SYMBOL_NOVERS(__down_failed);
EXPORT_SYMBOL_NOVERS(__down_failed_interruptible);
EXPORT_SYMBOL_NOVERS(__up_wakeup);
/* Networking helper routines. */
EXPORT_SYMBOL(csum_partial_copy);
#ifdef __SMP__
EXPORT_SYMBOL(apic_reg); /* Needed internally for the I386 inlines */
EXPORT_SYMBOL(cpu_data);
......
arch/i386/kernel/irq.c
View file @ 0939a7a4
......@@ -33,6 +33,7 @@
#include <asm/irq.h>
#include <asm/bitops.h>
#include <asm/smp.h>
#include <asm/pgtable.h>
#define CR0_NE 32
......@@ -126,15 +127,14 @@ BUILD_IRQ(SECOND,9,0x02)
BUILD_IRQ(SECOND,10,0x04)
BUILD_IRQ(SECOND,11,0x08)
BUILD_IRQ(SECOND,12,0x10)
#ifdef __SMP__
BUILD_MSGIRQ(SECOND,13,0x20)
#else
BUILD_IRQ(SECOND,13,0x20)
#endif
BUILD_IRQ(SECOND,14,0x40)
BUILD_IRQ(SECOND,15,0x80)
#ifdef __SMP__
BUILD_RESCHEDIRQ(16)
BUILD_SMP_INTERRUPT(reschedule_interrupt)
BUILD_SMP_INTERRUPT(invalidate_interrupt)
BUILD_SMP_INTERRUPT(stop_cpu_interrupt)
#endif
/*
......@@ -146,9 +146,6 @@ static void (*interrupt[17])(void) = {
IRQ4_interrupt, IRQ5_interrupt, IRQ6_interrupt, IRQ7_interrupt,
IRQ8_interrupt, IRQ9_interrupt, IRQ10_interrupt, IRQ11_interrupt,
IRQ12_interrupt, IRQ13_interrupt, IRQ14_interrupt, IRQ15_interrupt
#ifdef __SMP__
,IRQ16_interrupt
#endif
};
static void (*fast_interrupt[16])(void) = {
......@@ -179,15 +176,6 @@ static void (*bad_interrupt[16])(void) = {
static void no_action(int cpl, void *dev_id, struct pt_regs *regs) { }
#ifdef __SMP__
/*
* On SMP boards, irq13 is used for interprocessor interrupts (IPI's).
*/
static struct irqaction irq13 = { smp_message_irq, SA_INTERRUPT, 0, "IPI", NULL, NULL };
#else
/*
* Note that on a 486, we don't want to do a SIGFPE on an irq13
* as the irq is unreliable, and exception 16 works correctly
......@@ -211,8 +199,6 @@ static void math_error_irq(int cpl, void *dev_id, struct pt_regs *regs)
static struct irqaction irq13 = { math_error_irq, 0, 0, "math error", NULL, NULL };
#endif
/*
* IRQ2 is cascade interrupt to second interrupt controller
*/
......@@ -335,6 +321,174 @@ int get_smp_prof_list(char *buf) {
#endif
/*
* Global interrupt locks for SMP. Allow interrupts to come in on any
* CPU, yet make cli/sti act globally to protect critical regions..
*/
#ifdef __SMP__
unsigned char global_irq_holder = NO_PROC_ID;
unsigned volatile int global_irq_lock;
unsigned volatile int global_irq_count;
unsigned int local_irq_count[NR_CPUS];
#define irq_active(cpu) \
(global_irq_count != local_irq_count[cpu])
#define INIT_STUCK 10000000
#define STUCK(x) \
if (!--stuck) {printk(#x " stuck at %08lx, waiting for %08lx\n", where, previous); stuck = INIT_STUCK;}
/*
* "global_cli()" is a special case, in that it can hold the
* interrupts disabled for a longish time, and also because
* we may be doing TLB invalidates when holding the global
* IRQ lock for historical reasons. Thus we may need to check
* SMP invalidate events specially by hand here (but not in
* any normal spinlocks)
*/
static inline void check_smp_invalidate(int cpu)
{
if (test_bit(cpu, &smp_invalidate_needed)) {
clear_bit(cpu, &smp_invalidate_needed);
local_flush_tlb();
}
}
static inline void get_irqlock(int cpu, unsigned long where)
{
static unsigned long previous;
int local_count;
int stuck = INIT_STUCK;
if (set_bit(0,&global_irq_lock)) {
/* do we already hold the lock? */
if ((unsigned char) cpu == global_irq_holder)
return;
/* Uhhuh.. Somebody else got it. Wait.. */
do {
do {
STUCK(irqlock1);
check_smp_invalidate(cpu);
} while (test_bit(0,&global_irq_lock));
} while (set_bit(0,&global_irq_lock));
}
/*
* Ok, we got the lock bit.
* But that's actually just the easy part.. Now
* we need to make sure that nobody else is running
* in an interrupt context.
*/
local_count = local_irq_count[cpu];
/* Are we the only one in an interrupt context? */
while (local_count != global_irq_count) {
/*
* No such luck. Now we need to release the lock,
* _and_ release our interrupt context, because
* otherwise we'd have dead-locks and live-locks
* and other fun things.
*/
atomic_sub(local_count, &global_irq_count);
global_irq_lock = 0;
/*
* Wait for everybody else to go away and release
* their things before trying to get the lock again.
*/
for (;;) {
STUCK(irqlock2);
check_smp_invalidate(cpu);
if (global_irq_count)
continue;
if (global_irq_lock)
continue;
if (!set_bit(0,&global_irq_lock))
break;
}
atomic_add(local_count, &global_irq_count);
}
/*
* Finally.
*/
global_irq_holder = cpu;
previous = where;
}
void __global_cli(void)
{
int cpu = smp_processor_id();
unsigned long where;
__asm__("movl 12(%%esp),%0":"=r" (where));
__cli();
get_irqlock(cpu, where);
}
void __global_sti(void)
{
release_irqlock(smp_processor_id());
__sti();
}
unsigned long __global_save_flags(void)
{
return global_irq_holder == (unsigned char) smp_processor_id();
}
void __global_restore_flags(unsigned long flags)
{
switch (flags) {
case 0:
__global_sti();
break;
case 1:
__global_cli();
break;
default:
printk("global_restore_flags: %08lx (%08lx)\n",
flags, (&flags)[-1]);
}
}
#undef INIT_STUCK
#define INIT_STUCK 200000000
#undef STUCK
#define STUCK \
if (!--stuck) {printk("irq_enter stuck (irq=%d, cpu=%d, global=%d)\n",irq,cpu,global_irq_holder); stuck = INIT_STUCK;}
static inline void irq_enter(int cpu, int irq)
{
int stuck = INIT_STUCK;
hardirq_enter(cpu);
while (test_bit(0,&global_irq_lock)) {
if ((unsigned char) cpu == global_irq_holder) {
printk("BAD! Local interrupts enabled, global disabled\n");
break;
}
STUCK;
/* nothing */;
}
atomic_inc(&intr_count);
}
static inline void irq_exit(int cpu, int irq)
{
__cli();
atomic_dec(&intr_count);
hardirq_exit(cpu);
release_irqlock(cpu);
}
#else
#define irq_enter(cpu, irq) do { } while (0)
#define irq_exit(cpu, irq) do { } while (0)
#endif
/*
* do_IRQ handles IRQ's that have been installed without the
......@@ -345,20 +499,16 @@ int get_smp_prof_list(char *buf) {
*/
asmlinkage void do_IRQ(int irq, struct pt_regs * regs)
{
struct irqaction * action = *(irq + irq_action);
int do_random = 0;
lock_kernel();
atomic_inc(&intr_count);
#ifdef __SMP__
if(smp_threads_ready && active_kernel_processor!=smp_processor_id())
panic("IRQ %d: active processor set wrongly(%d not %d).\n", irq, active_kernel_processor, smp_processor_id());
#endif
struct irqaction * action;
int do_random, cpu = smp_processor_id();
irq_enter(cpu, irq);
kstat.interrupts[irq]++;
#ifdef __SMP_PROF__
int_count[smp_processor_id()][irq]++;
#endif
/* slow interrupts run with interrupts enabled */
__sti();
action = *(irq + irq_action);
do_random = 0;
while (action) {
do_random |= action->flags;
action->handler(irq, action->dev_id, regs);
......@@ -366,8 +516,7 @@ asmlinkage void do_IRQ(int irq, struct pt_regs * regs)
}
if (do_random & SA_SAMPLE_RANDOM)
add_interrupt_randomness(irq);
atomic_dec(&intr_count);
unlock_kernel();
irq_exit(cpu, irq);
}
/*
......@@ -377,21 +526,13 @@ asmlinkage void do_IRQ(int irq, struct pt_regs * regs)
*/
asmlinkage void do_fast_IRQ(int irq)
{
struct irqaction * action = *(irq + irq_action);
int do_random = 0;
lock_kernel();
intr_count++;
#ifdef __SMP__
/* IRQ 13 is allowed - that's a flush tlb */
if(smp_threads_ready && active_kernel_processor!=smp_processor_id() && irq!=13)
panic("fast_IRQ %d: active processor set wrongly(%d not %d).\n", irq, active_kernel_processor, smp_processor_id());
#endif
struct irqaction * action;
int do_random, cpu = smp_processor_id();
irq_enter(cpu, irq);
kstat.interrupts[irq]++;
#ifdef __SMP_PROF__
int_count[smp_processor_id()][irq]++;
#endif
action = *(irq + irq_action);
do_random = 0;
while (action) {
do_random |= action->flags;
action->handler(irq, action->dev_id, NULL);
......@@ -399,8 +540,7 @@ asmlinkage void do_fast_IRQ(int irq)
}
if (do_random & SA_SAMPLE_RANDOM)
add_interrupt_randomness(irq);
intr_count--;
unlock_kernel();
irq_exit(cpu, irq);
}
int setup_x86_irq(int irq, struct irqaction * new)
......@@ -561,7 +701,9 @@ void init_IRQ(void)
/* This bit is a hack because we don't send timer messages to all processors yet */
/* It has to be here .. it doesn't work if you put it down the bottom - assembler explodes 8) */
#ifdef __SMP__
set_intr_gate(0x20+i, interrupt[i]); /* IRQ '16' - IPI for rescheduling */
set_intr_gate(0x20+i, reschedule_interrupt); /* IRQ '16' - IPI for rescheduling */
set_intr_gate(0x21+i, invalidate_interrupt); /* IRQ '17' - IPI for invalidation */
set_intr_gate(0x22+i, stop_cpu_interrupt); /* IRQ '18' - IPI for CPU halt */
#endif
request_region(0x20,0x20,"pic1");
request_region(0xa0,0x20,"pic2");
......
arch/i386/kernel/process.c
View file @ 0939a7a4
......@@ -29,6 +29,10 @@
#include <linux/unistd.h>
#include <linux/delay.h>
#include <linux/smp.h>
#include <linux/reboot.h>
#if defined(CONFIG_APM) && defined(CONFIG_APM_POWER_OFF)
#include <linux/apm_bios.h>
#endif
#include <asm/uaccess.h>
#include <asm/pgtable.h>
......@@ -122,6 +126,7 @@ asmlinkage int sys_idle(void)
if (hlt_works_ok && !hlt_counter && !need_resched)
__asm__("hlt");
}
run_task_queue(&tq_scheduler);
if (need_resched)
start_idle = 0;
schedule();
......@@ -134,30 +139,6 @@ asmlinkage int sys_idle(void)
#else
/*
* In the SMP world we hlt outside of kernel syscall rather than within
* so as to get the right locking semantics.
*/
asmlinkage int sys_idle(void)
{
int ret = -EPERM;
lock_kernel();
if(current->pid != 0)
goto out;
#ifdef __SMP_PROF__
smp_spins_sys_idle[smp_processor_id()]+=
smp_spins_syscall_cur[smp_processor_id()];
#endif
current->counter= -100;
schedule();
ret = 0;
out:
unlock_kernel();
return ret;
}
/*
* This is being executed in task 0 'user space'.
*/
......@@ -168,32 +149,17 @@ int cpu_idle(void *unused)
{
if(cpu_data[smp_processor_id()].hlt_works_ok && !hlt_counter && !need_resched)
__asm("hlt");
if(0==(read_smp_counter(&smp_process_available)))
continue;
while(0x80000000 & smp_process_available)
;
cli();
while(set_bit(31,&smp_process_available))
while(test_bit(31,&smp_process_available))
{
/*
* Oops.. This is kind of important in some cases...
*/
if(clear_bit(smp_processor_id(), &smp_invalidate_needed))
local_flush_tlb();
}
if (0==(read_smp_counter(&smp_process_available))) {
clear_bit(31,&smp_process_available);
sti();
continue;
}
smp_process_available--;
clear_bit(31,&smp_process_available);
sti();
idle();
run_task_queue(&tq_scheduler);
schedule();
}
}
asmlinkage int sys_idle(void)
{
cpu_idle(NULL);
return 0;
}
#endif
/*
......@@ -297,11 +263,13 @@ static inline void kb_wait(void)
break;
}
void hard_reset_now (void)
void machine_restart(char * __unused)
{
if(!reboot_thru_bios) {
#if 0
sti();
#endif
/* rebooting needs to touch the page at absolute addr 0 */
*((unsigned short *)__va(0x472)) = reboot_mode;
for (;;) {
......@@ -399,6 +367,18 @@ void hard_reset_now (void)
: "i" ((void *) (0x1000 - sizeof (real_mode_switch))));
}
void machine_halt(void)
{
}
void machine_power_off(void)
{
#if defined(CONFIG_APM) && defined(CONFIG_APM_POWER_OFF)
apm_set_power_state(APM_STATE_OFF);
#endif
}
void show_regs(struct pt_regs * regs)
{
printk("\n");
......
arch/i386/kernel/smp.c
View file @ 0939a7a4
......@@ -44,6 +44,8 @@
#include <asm/smp.h>
#include <asm/io.h>
extern unsigned long start_kernel, _etext;
/*
* Some notes on processor bugs:
*
......@@ -122,9 +124,6 @@ unsigned long apic_retval; /* Just debugging the assembler.. */
unsigned char *kernel_stacks[NR_CPUS]; /* Kernel stack pointers for CPU's (debugging) */
static volatile unsigned char smp_cpu_in_msg[NR_CPUS]; /* True if this processor is sending an IPI */
static volatile unsigned long smp_msg_data; /* IPI data pointer */
static volatile int smp_src_cpu; /* IPI sender processor */
static volatile int smp_msg_id; /* Message being sent */
volatile unsigned long kernel_flag=0; /* Kernel spinlock */
volatile unsigned char active_kernel_processor = NO_PROC_ID; /* Processor holding kernel spinlock */
......@@ -491,6 +490,7 @@ int smp_scan_config(unsigned long base, unsigned long length)
*/
nlong = boot_cpu_id<<24; /* Dummy 'self' for bootup */
cpu_logical_map[0] = boot_cpu_id;
global_irq_holder = boot_cpu_id;
printk("Processors: %d\n", num_processors);
/*
......@@ -1051,7 +1051,6 @@ void smp_boot_cpus(void)
SMP_PRINTK(("Boot done.\n"));
}
/*
* A non wait message cannot pass data or cpu source info. This current setup
* is only safe because the kernel lock owner is the only person who can send a message.
......@@ -1070,9 +1069,8 @@ void smp_message_pass(int target, int msg, unsigned long data, int wait)
unsigned long cfg;
unsigned long target_map;
int p=smp_processor_id();
int irq=0x2d; /* IRQ 13 */
int irq;
int ct=0;
static volatile int message_cpu = NO_PROC_ID;
/*
* During boot up send no messages
......@@ -1088,10 +1086,23 @@ void smp_message_pass(int target, int msg, unsigned long data, int wait)
* but is not critical.
*/
if(msg==MSG_RESCHEDULE) /* Reschedules we do via trap 0x30 */
{
irq=0x30;
if(smp_cpu_in_msg[p])
switch (msg) {
case MSG_RESCHEDULE:
irq = 0x30;
if (smp_cpu_in_msg[p])
return;
break;
case MSG_INVALIDATE_TLB:
irq = 0x31;
break;
case MSG_STOP_CPU:
irq = 0x32;
break;
default:
printk("Unknown SMP message %d\n", msg);
return;
}
......@@ -1103,31 +1114,12 @@ void smp_message_pass(int target, int msg, unsigned long data, int wait)
* I got to notice this bug...
*/
if(message_cpu!=NO_PROC_ID && msg!=MSG_STOP_CPU && msg!=MSG_RESCHEDULE)
{
panic("CPU #%d: Message pass %d but pass in progress by %d of %d\n",
smp_processor_id(),msg,message_cpu, smp_msg_id);
}
message_cpu=smp_processor_id();
/*
* We are busy
*/
smp_cpu_in_msg[p]++;
/*
* Reschedule is currently special
*/
if(msg!=MSG_RESCHEDULE)
{
smp_src_cpu=p;
smp_msg_id=msg;
smp_msg_data=data;
}
/* printk("SMP message pass #%d to %d of %d\n",
p, msg, target);*/
......@@ -1150,7 +1142,7 @@ void smp_message_pass(int target, int msg, unsigned long data, int wait)
*/
if(ct==1000)
printk("CPU #%d: previous IPI still not cleared after 10mS", smp_processor_id());
printk("CPU #%d: previous IPI still not cleared after 10mS", p);
/*
* Program the APIC to deliver the IPI
......@@ -1171,7 +1163,7 @@ void smp_message_pass(int target, int msg, unsigned long data, int wait)
{
cfg|=APIC_DEST_ALLBUT;
target_map=cpu_present_map;
cpu_callin_map[0]=(1<<smp_src_cpu);
cpu_callin_map[0]=(1<<p);
}
else if(target==MSG_ALL)
{
......@@ -1197,11 +1189,30 @@ void smp_message_pass(int target, int msg, unsigned long data, int wait)
switch(wait)
{
int stuck;
case 1:
while(cpu_callin_map[0]!=target_map); /* Spin on the pass */
stuck = 50000000;
while(cpu_callin_map[0]!=target_map) {
--stuck;
if (!stuck) {
printk("stuck on target_map IPI wait\n");
break;
}
}
break;
case 2:
while(smp_invalidate_needed); /* Wait for invalidate map to clear */
stuck = 50000000;
/* Wait for invalidate map to clear */
while (smp_invalidate_needed) {
/* Take care of "crossing" invalidates */
if (test_bit(p, &smp_invalidate_needed))
clear_bit(p, &smp_invalidate_needed);
--stuck;
if (!stuck) {
printk("stuck on smp_invalidate_needed IPI wait\n");
break;
}
}
break;
}
......@@ -1210,7 +1221,6 @@ void smp_message_pass(int target, int msg, unsigned long data, int wait)
*/
smp_cpu_in_msg[p]--;
message_cpu=NO_PROC_ID;
}
/*
......@@ -1233,15 +1243,15 @@ void smp_flush_tlb(void)
* bus locked or.
*/
smp_invalidate_needed=cpu_present_map&~(1<<smp_processor_id());
smp_invalidate_needed=cpu_present_map;
/*
* Processors spinning on the lock will see this IRQ late. The smp_invalidate_needed map will
* ensure they don't do a spurious flush tlb or miss one.
*/
save_flags(flags);
cli();
__save_flags(flags);
__cli();
smp_message_pass(MSG_ALL_BUT_SELF, MSG_INVALIDATE_TLB, 0L, 2);
/*
......@@ -1250,7 +1260,7 @@ void smp_flush_tlb(void)
local_flush_tlb();
restore_flags(flags);
__restore_flags(flags);
/*
* Completed.
......@@ -1262,69 +1272,34 @@ void smp_flush_tlb(void)
/*
* Reschedule call back
*/
void smp_reschedule_irq(int cpl, struct pt_regs *regs)
asmlinkage void smp_reschedule_interrupt(void)
{
lock_kernel();
intr_count++;
if(smp_processor_id()!=active_kernel_processor)
panic("SMP Reschedule on CPU #%d, but #%d is active.\n",
smp_processor_id(), active_kernel_processor);
need_resched=1;
/* Clear the IPI */
apic_read(APIC_SPIV); /* Dummy read */
apic_write(APIC_EOI, 0); /* Docs say use 0 for future compatibility */
intr_count--;
unlock_kernel();
}
/*
* Message call back.
* Invalidate call-back
*/
void smp_message_irq(int cpl, void *dev_id, struct pt_regs *regs)
asmlinkage void smp_invalidate_interrupt(void)
{
int i=smp_processor_id();
/* static int n=0;
if(n++<NR_CPUS)
printk("IPI %d->%d(%d,%ld)\n",smp_src_cpu,i,smp_msg_id,smp_msg_data);*/
switch(smp_msg_id)
{
case 0: /* IRQ 13 testing - boring */
return;
/*
* A TLB flush is needed.
*/
case MSG_INVALIDATE_TLB:
if(clear_bit(i,(unsigned long *)&smp_invalidate_needed))
if (clear_bit(smp_processor_id(), &smp_invalidate_needed))
local_flush_tlb();
set_bit(i, (unsigned long *)&cpu_callin_map[0]);
/* cpu_callin_map[0]|=1<<smp_processor_id();*/
break;
/*
* Halt other CPU's for a panic or reboot
*/
case MSG_STOP_CPU:
while(1)
{
if(cpu_data[smp_processor_id()].hlt_works_ok)
__asm__("hlt");
}
default:
printk("CPU #%d sent invalid cross CPU message to CPU #%d: %X(%lX).\n",
smp_src_cpu,smp_processor_id(),smp_msg_id,smp_msg_data);
break;
}
/*
* Clear the IPI, so we can receive future IPI's
*/
/* Clear the IPI */
apic_read(APIC_SPIV); /* Dummy read */
apic_write(APIC_EOI, 0); /* Docs say use 0 for future compatibility */
}
/*
* CPU halt call-back
*/
asmlinkage void smp_stop_cpu_interrupt(void)
{
if (cpu_data[smp_processor_id()].hlt_works_ok)
for(;;) __asm__("hlt");
for (;;) ;
}
arch/i386/kernel/time.c
View file @ 0939a7a4
......@@ -388,7 +388,7 @@ static inline void timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
basically because we don't yet share IRQ's around. This message is
rigged to be safe on the 386 - basically it's a hack, so don't look
closely for now.. */
/*smp_message_pass(MSG_ALL_BUT_SELF, MSG_RESCHEDULE, 0L, 0); */
smp_message_pass(MSG_ALL_BUT_SELF, MSG_RESCHEDULE, 0L, 0);
#ifdef CONFIG_MCA
if( MCA_bus ) {
......
arch/i386/kernel/traps.c
View file @ 0939a7a4
......@@ -231,7 +231,6 @@ asmlinkage void do_general_protection(struct pt_regs * regs, long error_code)
asmlinkage void do_nmi(struct pt_regs * regs, long error_code)
{
lock_kernel();
#ifdef CONFIG_SMP_NMI_INVAL
smp_flush_tlb_rcv();
#else
......@@ -241,7 +240,6 @@ asmlinkage void do_nmi(struct pt_regs * regs, long error_code)
printk("power saving mode enabled.\n");
#endif
#endif
unlock_kernel();
}
asmlinkage void do_debug(struct pt_regs * regs, long error_code)
......@@ -305,18 +303,14 @@ void math_error(void)
asmlinkage void do_coprocessor_error(struct pt_regs * regs, long error_code)
{
lock_kernel();
ignore_irq13 = 1;
math_error();
unlock_kernel();
}
asmlinkage void do_spurious_interrupt_bug(struct pt_regs * regs,
long error_code)
{
lock_kernel();
printk("Ignoring P6 Local APIC Spurious Interrupt Bug...\n");
unlock_kernel();
}
/*
......@@ -328,7 +322,6 @@ asmlinkage void do_spurious_interrupt_bug(struct pt_regs * regs,
*/
asmlinkage void math_state_restore(void)
{
lock_kernel();
__asm__ __volatile__("clts"); /* Allow maths ops (or we recurse) */
/*
......@@ -341,7 +334,7 @@ asmlinkage void math_state_restore(void)
*/
#ifndef __SMP__
if (last_task_used_math == current)
goto out;
return;
if (last_task_used_math)
__asm__("fnsave %0":"=m" (last_task_used_math->tss.i387));
else
......@@ -360,10 +353,6 @@ asmlinkage void math_state_restore(void)
current->used_math = 1;
}
current->flags|=PF_USEDFPU; /* So we fnsave on switch_to() */
#ifndef __SMP__
out:
#endif
unlock_kernel();
}
#ifndef CONFIG_MATH_EMULATION
......
arch/m68k/kernel/m68k_ksyms.c
View file @ 0939a7a4
......@@ -48,4 +48,5 @@ EXPORT_SYMBOL_NOVERS(memcpy);
EXPORT_SYMBOL_NOVERS(memset);
EXPORT_SYMBOL_NOVERS(__down_failed);
EXPORT_SYMBOL_NOVERS(__down_failed_interruptible);
EXPORT_SYMBOL_NOVERS(__up_wakeup);
arch/sparc/defconfig
View file @ 0939a7a4
......@@ -78,6 +78,7 @@ CONFIG_BLK_DEV_LOOP=m
CONFIG_NETLINK=y
CONFIG_RTNETLINK=y
CONFIG_FIREWALL=y
# CONFIG_NET_SECURITY is not set
CONFIG_NET_ALIAS=y
CONFIG_INET=y
CONFIG_IP_MULTICAST=y
......
arch/sparc/kernel/setup.c
View file @ 0939a7a4
/* $Id: setup.c,v 1.81 1997/01/29 10:32:55 davem Exp $
/* $Id: setup.c,v 1.82 1997/03/08 08:27:04 ecd Exp $
* linux/arch/sparc/kernel/setup.c
*
* Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
......@@ -115,6 +115,7 @@ unsigned int boot_flags;
extern char *console_fb_path;
static int console_fb = 0;
#endif
static unsigned long memory_size = 0;
void kernel_enter_debugger(void)
{
......@@ -215,8 +216,23 @@ __initfunc(static void boot_flags_init(char *commands))
console_fb = 1;
console_fb_path = commands;
}
}
} else
#endif
if (!strncmp(commands, "mem=", 4)) {
/*
* "mem=XXX[kKmM] overrides the PROM-reported
* memory size.
*/
memory_size = simple_strtoul(commands + 4,
&commands, 0);
if (*commands == 'K' || *commands == 'k') {
memory_size <<= 10;
commands++;
} else if (*commands=='M' || *commands=='m') {
memory_size <<= 20;
commands++;
}
}
while (*commands && *commands != ' ')
commands++;
}
......@@ -337,15 +353,35 @@ __initfunc(void setup_arch(char **cmdline_p,
*memory_start_p = (((unsigned long) &end));
if(!packed) {
for(i=0; sp_banks[i].num_bytes != 0; i++)
for(i=0; sp_banks[i].num_bytes != 0; i++) {
end_of_phys_memory = sp_banks[i].base_addr +
sp_banks[i].num_bytes;
if (memory_size) {
if (end_of_phys_memory > memory_size) {
sp_banks[i].num_bytes -=
(end_of_phys_memory - memory_size);
end_of_phys_memory = memory_size;
sp_banks[++i].base_addr = 0xdeadbeef;
sp_banks[i].num_bytes = 0;
}
}
}
} else {
unsigned int sum = 0;
for(i = 0; sp_banks[i].num_bytes != 0; i++)
for(i = 0; sp_banks[i].num_bytes != 0; i++) {
sum += sp_banks[i].num_bytes;
if (memory_size) {
if (sum > memory_size) {
sp_banks[i].num_bytes -=
(sum - memory_size);
sum = memory_size;
sp_banks[++i].base_addr = 0xdeadbeef;
sp_banks[i].num_bytes = 0;
break;
}
}
}
end_of_phys_memory = sum;
}
......
arch/sparc/kernel/sparc_ksyms.c
View file @ 0939a7a4
/* $Id: sparc_ksyms.c,v 1.47 1997/03/03 16:51:41 jj Exp $
/* $Id: sparc_ksyms.c,v 1.49 1997/03/15 07:47:45 davem Exp $
* arch/sparc/kernel/ksyms.c: Sparc specific ksyms support.
*
* Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
......@@ -11,6 +11,7 @@
#include <linux/module.h>
#include <linux/types.h>
#include <linux/string.h>
#include <linux/in6.h>
#include <asm/oplib.h>
#include <asm/delay.h>
......@@ -27,6 +28,7 @@
#include <asm/ptrace.h>
#include <asm/user.h>
#include <asm/uaccess.h>
#include <asm/checksum.h>
#ifdef CONFIG_SBUS
#include <asm/sbus.h>
#include <asm/dma.h>
......@@ -52,7 +54,6 @@ extern void *__memscan_zero(void *, size_t);
extern void *__memscan_generic(void *, int, size_t);
extern int __memcmp(const void *, const void *, __kernel_size_t);
extern int __strncmp(const char *, const char *, __kernel_size_t);
extern unsigned int __csum_partial_copy_sparc_generic (const char *, char *);
extern void bcopy (const char *, char *, int);
extern int __ashrdi3(int, int);
......@@ -183,12 +184,14 @@ EXPORT_SYMBOL(__memcmp);
EXPORT_SYMBOL(__strncmp);
EXPORT_SYMBOL(__memmove);
EXPORT_SYMBOL(__csum_partial_copy_sparc_generic);
/* Moving data to/from userspace. */
EXPORT_SYMBOL(__copy_user);
EXPORT_SYMBOL(__strncpy_from_user);
/* Networking helper routines. */
/* XXX This is NOVERS because C_LABEL_STR doesn't get the version number. -DaveM */
EXPORT_SYMBOL_NOVERS(__csum_partial_copy_sparc_generic);
/* No version information on this, heavily used in inline asm,
* and will always be 'void __ret_efault(void)'.
*/
......
arch/sparc/kernel/unaligned.c
View file @ 0939a7a4
/* $Id: unaligned.c,v 1.15 1997/01/16 14:14:42 davem Exp $
/* $Id: unaligned.c,v 1.16 1997/03/18 17:53:44 jj Exp $
* unaligned.c: Unaligned load/store trap handling with special
* cases for the kernel to do them more quickly.
*
......@@ -19,8 +19,6 @@
/* #define DEBUG_MNA */
extern void die_if_kernel(char *, struct pt_regs *);
enum direction {
load, /* ld, ldd, ldh, ldsh */
store, /* st, std, sth, stsh */
......
arch/sparc/lib/Makefile
View file @ 0939a7a4
# $Id: Makefile,v 1.21 1997/01/25 06:48:43 davem Exp $
# $Id: Makefile,v 1.22 1997/03/14 21:04:17 jj Exp $
# Makefile for Sparc library files..
#
......@@ -7,7 +7,7 @@ CFLAGS := $(CFLAGS) -ansi
OBJS = mul.o rem.o sdiv.o udiv.o umul.o urem.o ashrdi3.o memcpy.o memset.o \
strlen.o checksum.o blockops.o memscan.o memcmp.o strncmp.o \
strncpy_from_user.o divdi3.o udivdi3.o strlen_user.o \
copy_user.o clear_user.o locks.o atomic.o bitops.o
copy_user.o locks.o atomic.o bitops.o
lib.a: $(OBJS)
$(AR) rcs lib.a $(OBJS)
......@@ -37,9 +37,6 @@ strlen_user.o: strlen_user.S
copy_user.o: copy_user.S
$(CC) -D__ASSEMBLY__ -ansi -c -o copy_user.o copy_user.S
clear_user.o: clear_user.S
$(CC) -D__ASSEMBLY__ -ansi -c -o clear_user.o clear_user.S
blockops.o: blockops.S
$(CC) -ansi -c -o blockops.o blockops.S
......
arch/sparc/lib/clear_user.S deleted 100644 → 0
View file @ b7b4d2d2
/* linux/arch/sparc/lib/clear_user.S: Sparc optimized clear_user code
*
* Zero %o1 bytes at user %o0, handling exceptions as we go.
* Returns 0 if successfull, # of bytes still not cleared otherwise
*
* Copyright (C) 1991,1996 Free Software Foundation
* Copyright (C) 1996 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
* Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
*/
#include <asm/cprefix.h>
#include <asm/ptrace.h>
#define EX(x,y,a,b,z) \
98: x,y; \
.section .fixup,z##alloc,z##execinstr; \
.align 4; \
99: retl; \
a, b, %o0; \
.section __ex_table,z##alloc; \
.align 4; \
.word 98b, 99b; \
.text; \
.align 4
#define EXT(start,end,handler,z) \
.section __ex_table,z##alloc; \
.align 4; \
.word start, 0, end, handler; \
.text; \
.align 4
/* Please don't change these macros, unless you change the login
* in the .fixup section below as well */
/* Store 64 bytes at (BASE + OFFSET) using value SOURCE. */
#define ZERO_BIG_BLOCK(base, offset, source) \
std source, [base + offset + 0x00]; \
std source, [base + offset + 0x08]; \
std source, [base + offset + 0x10]; \
std source, [base + offset + 0x18]; \
std source, [base + offset + 0x20]; \
std source, [base + offset + 0x28]; \
std source, [base + offset + 0x30]; \
std source, [base + offset + 0x38];
#define ZERO_LAST_BLOCKS(base, offset, source) \
std source, [base - offset - 0x38]; \
std source, [base - offset - 0x30]; \
std source, [base - offset - 0x28]; \
std source, [base - offset - 0x20]; \
std source, [base - offset - 0x18]; \
std source, [base - offset - 0x10]; \
std source, [base - offset - 0x08]; \
std source, [base - offset - 0x00];
.text
.align 4
.globl C_LABEL(__clear_user)
3:
cmp %o2, 3
be 2f
EX(stb %g0, [%o0], sub %o1, 0,#)
cmp %o2, 2
be 2f
EX(stb %g0, [%o0 + 0x01], sub %o1, 1,#)
EX(stb %g0, [%o0 + 0x02], sub %o1, 2,#)
2:
sub %o2, 4, %o2
add %o1, %o2, %o1
b 4f
sub %o0, %o2, %o0
C_LABEL(__clear_user):
cmp %o1, 7
bleu 7f
andcc %o0, 3, %o2
bne 3b
4:
andcc %o0, 4, %g0
be 2f
mov %g0, %g1
EX(st %g0, [%o0], sub %o1, 0,#)
sub %o1, 4, %o1
add %o0, 4, %o0
2:
andcc %o1, 0xffffff80, %o3 ! Now everything is 8 aligned and o1 is len to run
be 9f
andcc %o1, 0x78, %o2
10:
ZERO_BIG_BLOCK(%o0, 0x00, %g0)
subcc %o3, 128, %o3
ZERO_BIG_BLOCK(%o0, 0x40, %g0)
11:
EXT(10b, 11b, 20f,#)
bne 10b
add %o0, 128, %o0
orcc %o2, %g0, %g0
9:
be 13f
andcc %o1, 7, %o1
srl %o2, 1, %o3
set 13f, %o4
sub %o4, %o3, %o4
jmp %o4
add %o0, %o2, %o0
12:
ZERO_LAST_BLOCKS(%o0, 0x48, %g0)
ZERO_LAST_BLOCKS(%o0, 0x08, %g0)
13:
EXT(12b, 13b, 21f,#)
be 8f
andcc %o1, 4, %g0
be 1f
andcc %o1, 2, %g0
EX(st %g0, [%o0], and %o1, 7,#)
add %o0, 4, %o0
1:
be 1f
andcc %o1, 1, %g0
EX(sth %g0, [%o0], and %o1, 3,#)
add %o0, 2, %o0
1:
bne,a 8f
EX(stb %g0, [%o0], add %g0, 1,#)
8:
retl
clr %o0
7:
be 13b
orcc %o1, 0, %g0
andcc %o1, 4, %g0
be 1f
andcc %o1, 2, %g0
EX(stb %g0, [%o0 + 0], sub %o1, 0,#)
EX(stb %g0, [%o0 + 1], sub %o1, 1,#)
EX(stb %g0, [%o0 + 2], sub %o1, 2,#)
EX(stb %g0, [%o0 + 3], sub %o1, 3,#)
add %o0, 4, %o0
1:
be 1f
andcc %o1, 1, %o2
EX(stb %g0, [%o0 + 0], add %o2, 2,#)
EX(stb %g0, [%o0 + 1], add %o2, 1,#)
add %o0, 2, %o0
1:
bne,a 8b
EX(stb %g0, [%o0], add %g0, 1,#)
retl
clr %o0
.section .fixup,#alloc,#execinstr
.align 4
20:
cmp %g2, 8
bleu 1f
and %o1, 0x7f, %o1
sub %g2, 9, %g2
add %o3, 64, %o3
1:
sll %g2, 3, %g2
add %o3, %o1, %o0
retl
sub %o0, %g2, %o0
21:
mov 8, %o0
and %o1, 7, %o1
sub %o0, %g2, %o0
sll %o0, 3, %o0
retl
add %o0, %o1, %o0
arch/sparc/mm/Makefile
View file @ 0939a7a4
# $Id: Makefile,v 1.22 1996/11/22 11:57:03 ecd Exp $
# $Id: Makefile,v 1.23 1997/03/10 09:16:52 davem Exp $
# Makefile for the linux Sparc-specific parts of the memory manager.
#
# Note! Dependencies are done automagically by 'make dep', which also
......@@ -8,7 +8,10 @@
# Note 2! The CFLAGS definition is now in the main makefile...
O_TARGET := mm.o
O_OBJS := fault.o init.o sun4c.o srmmu.o loadmmu.o generic.o asyncd.o \
extable.o
O_OBJS := fault.o init.o sun4c.o srmmu.o hypersparc.o loadmmu.o \
generic.o asyncd.o extable.o
include $(TOPDIR)/Rules.make
hypersparc.o: hypersparc.S
$(CC) -D__ASSEMBLY__ -ansi -c -o hypersparc.o hypersparc.S
arch/sparc/mm/fault.c
View file @ 0939a7a4
/* $Id: fault.c,v 1.89 1997/03/04 16:26:46 jj Exp $
/* $Id: fault.c,v 1.91 1997/03/18 17:56:00 jj Exp $
* fault.c: Page fault handlers for the Sparc.
*
* Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
......@@ -36,8 +36,6 @@
extern struct sparc_phys_banks sp_banks[SPARC_PHYS_BANKS];
extern int prom_node_root;
extern void die_if_kernel(char *,struct pt_regs *);
struct linux_romvec *romvec;
/* At boot time we determine these two values necessary for setting
......@@ -134,7 +132,10 @@ asmlinkage void sparc_lvl15_nmi(struct pt_regs *regs, unsigned long serr,
prom_halt();
}
void unhandled_fault(unsigned long address, struct task_struct *tsk,
static void unhandled_fault(unsigned long, struct task_struct *,
struct pt_regs *) __attribute__ ((noreturn));
static void unhandled_fault(unsigned long address, struct task_struct *tsk,
struct pt_regs *regs)
{
if((unsigned long) address < PAGE_SIZE) {
......@@ -165,10 +166,10 @@ asmlinkage int lookup_fault(unsigned long pc, unsigned long ret_pc,
case 3: return 3;
/* store will be handled by fixup, load will bump out */
/* for _to_ macros */
case 1: insn = (unsigned *)pc; if ((insn >> 21) & 1) return 1; break;
case 1: insn = (unsigned)pc; if ((insn >> 21) & 1) return 1; break;
/* load will be handled by fixup, store will bump out */
/* for _from_ macros */
case 2: insn = (unsigned *)pc;
case 2: insn = (unsigned)pc;
if (!((insn >> 21) & 1) || ((insn>>19)&0x3f) == 15) return 2;
break;
default: break;
......
arch/sparc/mm/hypersparc.S 0 → 100644
View file @ 0939a7a4
/* $Id: hypersparc.S,v 1.1 1997/03/10 09:16:52 davem Exp $
* hypersparc.S: High speed Hypersparc mmu/cache operations.
*
* Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
*/
#include <asm/ptrace.h>
#include <asm/psr.h>
#include <asm/asi.h>
#include <asm/page.h>
#include <asm/pgtsrmmu.h>
#define WINDOW_FLUSH(tmp1, tmp2) \
mov 0, tmp1; \
98: ld [%g6 + AOFF_task_tss + AOFF_thread_uwinmask], tmp2; \
orcc %g0, tmp2, %g0; \
add tmp1, 1, tmp1; \
bne 98b; \
save %sp, -64, %sp; \
99: subcc tmp1, 1, tmp1; \
bne 99b; \
restore %g0, %g0, %g0;
.text
.align 4
.globl hypersparc_flush_cache_all, hypersparc_flush_cache_mm
.globl hypersparc_flush_cache_range, hypersparc_flush_cache_page
.globl hypersparc_flush_page_to_ram, hypersparc_flush_chunk
.globl hypersparc_flush_page_for_dma, hypersparc_flush_sig_insns
.globl hypersparc_flush_tlb_all, hypersparc_flush_tlb_mm
.globl hypersparc_flush_tlb_range, hypersparc_flush_tlb_page
/* Verified... */
hypersparc_flush_cache_all:
WINDOW_FLUSH(%g4, %g5)
sethi %hi(vac_cache_size), %g4
ld [%g4 + %lo(vac_cache_size)], %g5
sethi %hi(vac_line_size), %g1
ld [%g1 + %lo(vac_line_size)], %g2
1:
subcc %g5, %g2, %g5 ! hyper_flush_unconditional_combined
bne 1b
sta %g0, [%g5] ASI_M_FLUSH_CTX
retl
sta %g0, [%g0] ASI_M_FLUSH_IWHOLE ! hyper_flush_whole_icache
/* We expand the window flush to get maximum performance. */
/* Verified... */
hypersparc_flush_cache_mm:
#ifndef __SMP__
ld [%o0 + AOFF_mm_context], %g1
cmp %g1, -1
be hypersparc_flush_cache_mm_out
#endif
WINDOW_FLUSH(%g4, %g5)
sethi %hi(vac_line_size), %g1
ld [%g1 + %lo(vac_line_size)], %o1
sethi %hi(vac_cache_size), %g2
ld [%g2 + %lo(vac_cache_size)], %o0
add %o1, %o1, %g1
add %o1, %g1, %g2
add %o1, %g2, %g3
add %o1, %g3, %g4
add %o1, %g4, %g5
add %o1, %g5, %o4
add %o1, %o4, %o5
/* BLAMMO! */
1:
subcc %o0, %o5, %o0 ! hyper_flush_cache_user
sta %g0, [%o0 + %g0] ASI_M_FLUSH_USER
sta %g0, [%o0 + %o1] ASI_M_FLUSH_USER
sta %g0, [%o0 + %g1] ASI_M_FLUSH_USER
sta %g0, [%o0 + %g2] ASI_M_FLUSH_USER
sta %g0, [%o0 + %g3] ASI_M_FLUSH_USER
sta %g0, [%o0 + %g4] ASI_M_FLUSH_USER
sta %g0, [%o0 + %g5] ASI_M_FLUSH_USER
bne 1b
sta %g0, [%o0 + %o4] ASI_M_FLUSH_USER
hypersparc_flush_cache_mm_out:
retl
sta %g0, [%g0 + %g0] ASI_M_FLUSH_IWHOLE ! hyper_flush_whole_icache
/* The things we do for performance... */
/* Verified... */
hypersparc_flush_cache_range:
#ifndef __SMP__
ld [%o0 + AOFF_mm_context], %g1
cmp %g1, -1
be hypersparc_flush_cache_range_out
#endif
WINDOW_FLUSH(%g4, %g5)
sethi %hi(vac_line_size), %g1
ld [%g1 + %lo(vac_line_size)], %o4
sethi %hi(vac_cache_size), %g2
ld [%g2 + %lo(vac_cache_size)], %o3
/* Here comes the fun part... */
add %o2, (PAGE_SIZE - 1), %o2
andn %o1, (PAGE_SIZE - 1), %o1
add %o4, %o4, %o5
andn %o2, (PAGE_SIZE - 1), %o2
add %o4, %o5, %g1
sub %o2, %o1, %g4
add %o4, %g1, %g2
sll %o3, 2, %g5
add %o4, %g2, %g3
cmp %g4, %g5
add %o4, %g3, %g4
blu 0f
add %o4, %g4, %g5
add %o4, %g5, %g7
/* Flush entire user space, believe it or not this is quicker
* than page at a time flushings for range > (cache_size<<2).
*/
1:
subcc %o3, %g7, %o3
sta %g0, [%o3 + %g0] ASI_M_FLUSH_USER
sta %g0, [%o3 + %o4] ASI_M_FLUSH_USER
sta %g0, [%o3 + %o5] ASI_M_FLUSH_USER
sta %g0, [%o3 + %g1] ASI_M_FLUSH_USER
sta %g0, [%o3 + %g2] ASI_M_FLUSH_USER
sta %g0, [%o3 + %g3] ASI_M_FLUSH_USER
sta %g0, [%o3 + %g4] ASI_M_FLUSH_USER
bne 1b
sta %g0, [%o3 + %g5] ASI_M_FLUSH_USER
retl
sta %g0, [%g0 + %g0] ASI_M_FLUSH_IWHOLE
/* Below our threshold, flush one page at a time. */
0:
ld [%o0 + AOFF_mm_context], %o0
mov SRMMU_CTX_REG, %g7
lda [%g7] ASI_M_MMUREGS, %o3
sta %o0, [%g7] ASI_M_MMUREGS
sethi %hi(PAGE_SIZE), %g7 /* XXX ick, stupid stalls... */
sub %o2, %g7, %o0
1:
or %o0, 0x400, %g7
lda [%g7] ASI_M_FLUSH_PROBE, %g7
orcc %g7, 0, %g0
be,a 3f
mov %o0, %o2
add %o4, %g5, %g7
2:
sub %o2, %g7, %o2
sta %g0, [%o2 + %g0] ASI_M_FLUSH_PAGE
sta %g0, [%o2 + %o4] ASI_M_FLUSH_PAGE
sta %g0, [%o2 + %o5] ASI_M_FLUSH_PAGE
sta %g0, [%o2 + %g1] ASI_M_FLUSH_PAGE
sta %g0, [%o2 + %g2] ASI_M_FLUSH_PAGE
sta %g0, [%o2 + %g3] ASI_M_FLUSH_PAGE
andcc %o2, 0xffc, %g0
sta %g0, [%o2 + %g4] ASI_M_FLUSH_PAGE
bne 2b
sta %g0, [%o2 + %g5] ASI_M_FLUSH_PAGE
3:
sethi %hi(PAGE_SIZE), %g7
cmp %o2, %o1
bne 1b
sub %o2, %g7, %o0
mov SRMMU_FAULT_STATUS, %g5
lda [%g5] ASI_M_MMUREGS, %g0
mov SRMMU_CTX_REG, %g7
sta %o3, [%g7] ASI_M_MMUREGS
hypersparc_flush_cache_range_out:
retl
sta %g0, [%g0 + %g0] ASI_M_FLUSH_IWHOLE
/* HyperSparc requires a valid mapping where we are about to flush
* in order to check for a physical tag match during the flush.
*/
/* Verified... */
hypersparc_flush_cache_page:
ld [%o0 + 0x0], %o0 /* XXX vma->vm_mm, GROSS XXX */
#ifndef __SMP__
ld [%o0 + AOFF_mm_context], %g1
cmp %g1, -1
be hypersparc_flush_cache_page_out
#endif
WINDOW_FLUSH(%g4, %g5)
sethi %hi(vac_line_size), %g1
ld [%g1 + %lo(vac_line_size)], %o4
mov SRMMU_CTX_REG, %o3
andn %o1, (PAGE_SIZE - 1), %o1
lda [%o3] ASI_M_MMUREGS, %o2
sta %g1, [%o3] ASI_M_MMUREGS
or %o1, 0x400, %o5
lda [%o5] ASI_M_FLUSH_PROBE, %g1
orcc %g0, %g1, %g0
sethi %hi(PAGE_SIZE), %g7
be 2f
add %o4, %o4, %o5
add %o1, %g7, %o1
add %o4, %o5, %g1
add %o4, %g1, %g2
add %o4, %g2, %g3
add %o4, %g3, %g4
add %o4, %g4, %g5
add %o4, %g5, %g7
/* BLAMMO! */
1:
sub %o1, %g7, %o1
sta %g0, [%o1 + %g0] ASI_M_FLUSH_PAGE
sta %g0, [%o1 + %o4] ASI_M_FLUSH_PAGE
sta %g0, [%o1 + %o5] ASI_M_FLUSH_PAGE
sta %g0, [%o1 + %g1] ASI_M_FLUSH_PAGE
sta %g0, [%o1 + %g2] ASI_M_FLUSH_PAGE
sta %g0, [%o1 + %g3] ASI_M_FLUSH_PAGE
andcc %o1, 0xffc, %g0
sta %g0, [%o1 + %g4] ASI_M_FLUSH_PAGE
bne 1b
sta %g0, [%o1 + %g5] ASI_M_FLUSH_PAGE
2:
mov SRMMU_FAULT_STATUS, %g7
mov SRMMU_CTX_REG, %g4
lda [%g7] ASI_M_MMUREGS, %g0
sta %o2, [%g4] ASI_M_MMUREGS
hypersparc_flush_cache_page_out:
hypersparc_flush_sig_insns: /* This is "neat"... */
retl
sta %g0, [%g0 + %g0] ASI_M_FLUSH_IWHOLE
/* HyperSparc is copy-back. */
/* Verified... */
hypersparc_flush_page_to_ram:
hypersparc_flush_chunk:
sethi %hi(vac_line_size), %g1
ld [%g1 + %lo(vac_line_size)], %o4
andn %o0, (PAGE_SIZE - 1), %o0
add %o4, %o4, %o5
or %o0, 0x400, %g7
lda [%g7] ASI_M_FLUSH_PROBE, %g5
add %o4, %o5, %g1
orcc %g5, 0, %g0
be 2f
add %o4, %g1, %g2
sethi %hi(PAGE_SIZE), %g5
add %o4, %g2, %g3
add %o0, %g5, %o0
add %o4, %g3, %g4
add %o4, %g4, %g5
add %o4, %g5, %g7
/* BLAMMO! */
1:
sub %o0, %g7, %o0
sta %g0, [%o0 + %g0] ASI_M_FLUSH_PAGE
sta %g0, [%o0 + %o4] ASI_M_FLUSH_PAGE
sta %g0, [%o0 + %o5] ASI_M_FLUSH_PAGE
sta %g0, [%o0 + %g1] ASI_M_FLUSH_PAGE
sta %g0, [%o0 + %g2] ASI_M_FLUSH_PAGE
sta %g0, [%o0 + %g3] ASI_M_FLUSH_PAGE
andcc %o0, 0xffc, %g0
sta %g0, [%o0 + %g4] ASI_M_FLUSH_PAGE
bne 1b
sta %g0, [%o0 + %g5] ASI_M_FLUSH_PAGE
2:
mov SRMMU_FAULT_STATUS, %g1
retl
lda [%g1] ASI_M_MMUREGS, %g0
/* HyperSparc is IO cache coherent. */
hypersparc_flush_page_for_dma:
retl
nop
/* Verified... */
hypersparc_flush_tlb_all:
mov 0x400, %g1
retl
sta %g0, [%g1] ASI_M_FLUSH_PROBE
/* Verified... */
hypersparc_flush_tlb_mm:
mov SRMMU_CTX_REG, %g1
ld [%o0 + AOFF_mm_context], %o1
lda [%g1] ASI_M_MMUREGS, %g5
#ifndef __SMP__
cmp %o1, -1
be hypersparc_flush_tlb_mm_out
#endif
mov 0x300, %g2
sta %o1, [%g1] ASI_M_MMUREGS
sta %g0, [%g2] ASI_M_FLUSH_PROBE
hypersparc_flush_tlb_mm_out:
retl
sta %g5, [%g1] ASI_M_MMUREGS
/* Verified... */
hypersparc_flush_tlb_range:
mov SRMMU_CTX_REG, %g1
ld [%o0 + AOFF_mm_context], %o3
lda [%g1] ASI_M_MMUREGS, %g5
#ifndef __SMP__
cmp %o3, -1
be hypersparc_flush_tlb_range_out
#endif
srl %o1, SRMMU_PGDIR_SHIFT, %o1
sta %o3, [%g1] ASI_M_MMUREGS
sll %o1, SRMMU_PGDIR_SHIFT, %o1
sethi %hi(1 << SRMMU_PGDIR_SHIFT), %o4
add %o1, 0x200, %o1
sta %g0, [%o1] ASI_M_FLUSH_PROBE
1:
add %o1, %o4, %o1
cmp %o1, %o2
blu,a 1b
sta %g0, [%o1] ASI_M_FLUSH_PROBE
hypersparc_flush_tlb_range_out:
retl
sta %g5, [%g1] ASI_M_MMUREGS
/* Verified... */
hypersparc_flush_tlb_page:
ld [%o0 + 0x00], %o0 /* XXX vma->vm_mm GROSS XXX */
mov SRMMU_CTX_REG, %g1
ld [%o0 + AOFF_mm_context], %o3
andn %o1, (PAGE_SIZE - 1), %o1
lda [%g1] ASI_M_MMUREGS, %g5
#ifndef __SMP__
cmp %o3, -1
be hypersparc_flush_tlb_page_out
#endif
sta %o3, [%g1] ASI_M_MMUREGS
sta %g0, [%o1] ASI_M_FLUSH_PROBE
hypersparc_flush_tlb_page_out:
retl
sta %g5, [%g1] ASI_M_MMUREGS
arch/sparc/mm/srmmu.c
View file @ 0939a7a4
This diff is collapsed.
arch/sparc/prom/console.c
View file @ 0939a7a4
/* $Id: console.c,v 1.10 1996/12/18 06:46:54 tridge Exp $
/* $Id: console.c,v 1.11 1997/03/18 17:58:10 jj Exp $
* console.c: Routines that deal with sending and receiving IO
* to/from the current console device using the PROM.
*
......@@ -31,7 +31,6 @@ prom_nbgetchar(void)
break;
case PROM_V2:
case PROM_V3:
case PROM_P1275:
if( (*(romvec->pv_v2devops).v2_dev_read)(*romvec->pv_v2bootargs.fd_stdin , &inc, 0x1) == 1) {
i = inc;
} else {
......@@ -66,7 +65,6 @@ prom_nbputchar(char c)
break;
case PROM_V2:
case PROM_V3:
case PROM_P1275:
outc = c;
if( (*(romvec->pv_v2devops).v2_dev_write)(*romvec->pv_v2bootargs.fd_stdout, &outc, 0x1) == 1)
i = 0;
......@@ -129,7 +127,6 @@ prom_query_input_device()
return PROMDEV_I_UNK;
};
case PROM_V3:
case PROM_P1275:
save_flags(flags); cli();
st_p = (*romvec->pv_v2devops.v2_inst2pkg)(*romvec->pv_v2bootargs.fd_stdin);
__asm__ __volatile__("ld [%0], %%g6\n\t" : :
......@@ -177,7 +174,6 @@ prom_query_output_device()
break;
case PROM_V2:
case PROM_V3:
case PROM_P1275:
save_flags(flags); cli();
st_p = (*romvec->pv_v2devops.v2_inst2pkg)(*romvec->pv_v2bootargs.fd_stdout);
__asm__ __volatile__("ld [%0], %%g6\n\t" : :
......
arch/sparc/prom/devops.c
View file @ 0939a7a4
/* $Id: devops.c,v 1.6 1996/10/12 12:37:38 davem Exp $
/* $Id: devops.c,v 1.7 1997/03/18 17:58:19 jj Exp $
* devops.c: Device operations using the PROM.
*
* Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
......@@ -27,7 +27,6 @@ prom_devopen(char *dstr)
break;
case PROM_V2:
case PROM_V3:
case PROM_P1275:
handle = (*(romvec->pv_v2devops.v2_dev_open))(dstr);
break;
case PROM_AP1000:
......@@ -55,7 +54,6 @@ prom_devclose(int dhandle)
break;
case PROM_V2:
case PROM_V3:
case PROM_P1275:
(*(romvec->pv_v2devops.v2_dev_close))(dhandle);
break;
case PROM_AP1000:
......@@ -82,7 +80,6 @@ prom_seek(int dhandle, unsigned int seekhi, unsigned int seeklo)
break;
case PROM_V2:
case PROM_V3:
case PROM_P1275:
(*(romvec->pv_v2devops.v2_dev_seek))(dhandle, seekhi, seeklo);
break;
case PROM_AP1000:
......
arch/sparc/prom/init.c
View file @ 0939a7a4
/* $Id: init.c,v 1.9 1996/12/18 06:46:55 tridge Exp $
/* $Id: init.c,v 1.11 1997/03/18 17:58:24 jj Exp $
* init.c: Initialize internal variables used by the PROM
* library functions.
*
......@@ -19,6 +19,8 @@ unsigned int prom_rev, prom_prev;
/* The root node of the prom device tree. */
int prom_root_node;
int prom_stdin, prom_stdout;
/* Pointer to the device tree operations structure. */
struct linux_nodeops *prom_nodeops;
......@@ -49,11 +51,6 @@ __initfunc(void prom_init(struct linux_romvec *rp))
case 3:
prom_vers = PROM_V3;
break;
case 4:
prom_vers = PROM_P1275;
prom_printf("PROMLIB: Sun IEEE Prom not supported yet\n");
prom_halt();
break;
case 42: /* why not :-) */
prom_vers = PROM_AP1000;
break;
......@@ -77,6 +74,11 @@ __initfunc(void prom_init(struct linux_romvec *rp))
(((unsigned long) prom_nodeops) == -1))
prom_halt();
if(prom_vers == PROM_V2 || prom_vers == PROM_V3) {
prom_stdout = *romvec->pv_v2bootargs.fd_stdout;
prom_stdin = *romvec->pv_v2bootargs.fd_stdin;
}
prom_meminit();
prom_ranges_init();
......
arch/sparc/prom/memory.c
View file @ 0939a7a4
/* $Id: memory.c,v 1.9 1996/11/13 05:10:09 davem Exp $
/* $Id: memory.c,v 1.10 1997/03/18 17:58:27 jj Exp $
* memory.c: Prom routine for acquiring various bits of information
* about RAM on the machine, both virtual and physical.
*
......@@ -107,7 +107,6 @@ __initfunc(void prom_meminit(void))
break;
case PROM_V2:
case PROM_V3:
case PROM_P1275:
/* Grrr, have to traverse the prom device tree ;( */
node = prom_getchild(prom_root_node);
node = prom_searchsiblings(node, "memory");
......
arch/sparc/prom/mp.c
View file @ 0939a7a4
/* $Id: mp.c,v 1.6 1996/09/19 20:27:25 davem Exp $
/* $Id: mp.c,v 1.7 1997/03/18 17:58:23 jj Exp $
* mp.c: OpenBoot Prom Multiprocessor support routines. Don't call
* these on a UP or else you will halt and catch fire. ;)
*
......@@ -32,7 +32,6 @@ prom_startcpu(int cpunode, struct linux_prom_registers *ctable_reg, int ctx, cha
ret = -1;
break;
case PROM_V3:
case PROM_P1275:
ret = (*(romvec->v3_cpustart))(cpunode, (int) ctable_reg, ctx, pc);
break;
};
......@@ -62,7 +61,6 @@ prom_stopcpu(int cpunode)
ret = -1;
break;
case PROM_V3:
case PROM_P1275:
ret = (*(romvec->v3_cpustop))(cpunode);
break;
};
......@@ -92,7 +90,6 @@ prom_idlecpu(int cpunode)
ret = -1;
break;
case PROM_V3:
case PROM_P1275:
ret = (*(romvec->v3_cpuidle))(cpunode);
break;
};
......@@ -122,7 +119,6 @@ prom_restartcpu(int cpunode)
ret = -1;
break;
case PROM_V3:
case PROM_P1275:
ret = (*(romvec->v3_cpuresume))(cpunode);
break;
};
......
arch/sparc/prom/tree.c
View file @ 0939a7a4
/* $Id: tree.c,v 1.15 1997/01/31 00:17:04 tdyas Exp $
/* $Id: tree.c,v 1.16 1997/03/19 14:53:16 davem Exp $
* tree.c: Basic device tree traversal/scanning for the Linux
* prom library.
*
......@@ -259,6 +259,33 @@ char * prom_nextprop(int node, char *oprop)
return ret;
}
int prom_finddevice(char *name)
{
int topnd = prom_getchild(prom_root_node);
int srch;
if(name[0] == '/')
name++;
if(sparc_cpu_model == sun4d) {
if(!strcmp(name, "sbus"))
name = "sbi";
if((srch = prom_searchsiblings(topnd, "io-unit")) == 0 ||
(srch = prom_getchild(srch)) == 0 ||
(srch = prom_searchsiblings(srch, name)) == 0) {
prom_printf("%s prom node not found.\n", name);
prom_halt();
}
} else if((srch = prom_searchsiblings(topnd, name)) == 0) {
if((srch = prom_searchsiblings(topnd, "iommu")) == 0 ||
(srch = prom_getchild(srch)) == 0 ||
(srch = prom_searchsiblings(srch, name)) == 0) {
prom_printf("Cannot find node %s\n", name);
prom_halt();
}
}
return srch;
}
int prom_node_has_property(int node, char *prop)
{
char *current_property = "";
......
arch/sparc64/Makefile
View file @ 0939a7a4
# $Id: Makefile,v 1.6 1997/03/04 16:27:18 jj Exp $
# $Id: Makefile,v 1.9 1997/03/14 21:04:39 jj Exp $
# sparc64/Makefile
#
# Makefile for the architecture dependent flags and dependencies on the
......@@ -41,15 +41,5 @@ archclean:
archdep:
# <hack> Temporary hack, until we get a clean compile of everything...
vmlinux64: $(CONFIGURATION) init/main.o init/version.o
set -e; for i in arch/sparc64/kernel arch/sparc64/lib arch/sparc64/prom lib; do $(MAKE) -C $$i; done
$(LD) $(LINKFLAGS) $(HEAD) init/main.o init/version.o \
arch/sparc64/kernel/kernel.o \
lib/lib.a arch/sparc64/prom/promlib.a arch/sparc64/lib/lib.a \
-o vmlinux
$(NM) vmlinux | grep -v '\(compiled\)\|\(\.o$$\)\|\( a \)\|\(\.\.ng$$\)' | sort > System.map
# </hack>
check_asm:
$(MAKE) -C arch/sparc64/kernel check_asm
arch/sparc64/defconfig
View file @ 0939a7a4
......@@ -10,7 +10,9 @@ CONFIG_EXPERIMENTAL=y
#
# Loadable module support
#
# CONFIG_MODULES is not set
CONFIG_MODULES=y
CONFIG_MODVERSIONS=y
CONFIG_KERNELD=y
#
# General setup
......@@ -38,22 +40,26 @@ SUN_FB_CGFOURTEEN=y
SUN_FB_BWTWO=y
SUN_FB_LEO=y
TADPOLE_FB_WEITEK=y
SUN_FB_FAST_ONE=y
SUN_FB_FAST_TWO=y
SUN_FB_FAST_MONO=y
SUN_FB_GENERIC=y
#
# Misc Linux/SPARC drivers
#
CONFIG_SUN_OPENPROMIO=y
CONFIG_SUN_OPENPROMIO=m
CONFIG_SUN_MOSTEK_RTC=y
CONFIG_SUN_OPENPROMFS=y
# CONFIG_SUN_BPP is not set
#
# Linux/SPARC audio subsystem (EXPERIMENTAL)
#
# CONFIG_SPARCAUDIO is not set
# CONFIG_SPARCAUDIO_AMD7930 is not set
# CONFIG_SPARCAUDIO_CS4231 is not set
CONFIG_SUN_OPENPROMFS=m
CONFIG_NET=y
CONFIG_SYSVIPC=y
CONFIG_BINFMT_AOUT=y
CONFIG_BINFMT_ELF=y
CONFIG_BINFMT_JAVA=y
CONFIG_BINFMT_JAVA=m
#
# Floppy, IDE, and other block devices
......@@ -64,7 +70,7 @@ CONFIG_MD_LINEAR=y
CONFIG_MD_STRIPED=y
CONFIG_BLK_DEV_RAM=y
CONFIG_BLK_DEV_INITRD=y
CONFIG_BLK_DEV_LOOP=y
CONFIG_BLK_DEV_LOOP=m
#
# Networking options
......@@ -74,7 +80,6 @@ CONFIG_RTNETLINK=y
CONFIG_FIREWALL=y
CONFIG_NET_ALIAS=y
CONFIG_INET=y
CONFIG_IP_FORWARD=y
CONFIG_IP_MULTICAST=y
CONFIG_IP_FIREWALL=y
# CONFIG_IP_FIREWALL_NETLINK is not set
......@@ -88,32 +93,35 @@ CONFIG_IP_MASQUERADE=y
# CONFIG_IP_ALWAYS_DEFRAG is not set
# CONFIG_IP_ACCT is not set
# CONFIG_IP_ROUTER is not set
CONFIG_NET_IPIP=y
# CONFIG_NET_IPIP is not set
# CONFIG_IP_MROUTE is not set
CONFIG_IP_ALIAS=y
CONFIG_IP_ALIAS=m
# CONFIG_ARPD is not set
#
# (it is safe to leave these untouched)
#
# CONFIG_INET_PCTCP is not set
CONFIG_INET_RARP=y
CONFIG_INET_RARP=m
# CONFIG_PATH_MTU_DISCOVERY is not set
CONFIG_IP_NOSR=y
CONFIG_SKB_LARGE=y
CONFIG_IPV6=y
CONFIG_IPV6=m
#
#
#
CONFIG_IPX=y
CONFIG_IPX=m
# CONFIG_IPX_INTERN is not set
# CONFIG_IPX_PPROP_ROUTING is not set
CONFIG_ATALK=y
CONFIG_ATALK=m
# CONFIG_IPDDP is not set
# CONFIG_AX25 is not set
CONFIG_X25=y
CONFIG_X25=m
# CONFIG_LAPB is not set
# CONFIG_BRIDGE is not set
# CONFIG_LLC is not set
# CONFIG_WAN_ROUTER is not set
#
# SCSI support
......@@ -139,51 +147,50 @@ CONFIG_SCSI_CONSTANTS=y
# SCSI low-level drivers
#
CONFIG_SCSI_SUNESP=y
CONFIG_SCSI_QLOGICPTI=y
CONFIG_SCSI_QLOGICPTI=m
#
# Network device support
#
CONFIG_NETDEVICES=y
CONFIG_DUMMY=y
CONFIG_PPP=y
CONFIG_DUMMY=m
CONFIG_PPP=m
#
# CCP compressors for PPP are only built as modules.
#
CONFIG_SLIP=y
CONFIG_SLIP=m
CONFIG_SLIP_COMPRESSED=y
CONFIG_SLIP_SMART=y
# CONFIG_SLIP_MODE_SLIP6 is not set
CONFIG_SUNLANCE=y
CONFIG_HAPPYMEAL=y
CONFIG_SUNQE=y
CONFIG_MYRI_SBUS=y
CONFIG_HAPPYMEAL=m
CONFIG_SUNQE=m
CONFIG_MYRI_SBUS=m
#
# Filesystems
#
CONFIG_QUOTA=y
CONFIG_MINIX_FS=y
CONFIG_EXT_FS=y
CONFIG_MINIX_FS=m
CONFIG_EXT2_FS=y
CONFIG_XIA_FS=y
CONFIG_FAT_FS=y
CONFIG_MSDOS_FS=y
CONFIG_VFAT_FS=y
CONFIG_UMSDOS_FS=y
CONFIG_FAT_FS=m
CONFIG_MSDOS_FS=m
CONFIG_VFAT_FS=m
CONFIG_UMSDOS_FS=m
CONFIG_PROC_FS=y
CONFIG_NFS_FS=y
CONFIG_ROOT_NFS=y
CONFIG_RNFS_BOOTP=y
CONFIG_RNFS_RARP=y
CONFIG_SMB_FS=y
CONFIG_SMB_FS=m
CONFIG_SMB_WIN95=y
CONFIG_NCP_FS=y
CONFIG_NCP_FS=m
CONFIG_ISO9660_FS=y
CONFIG_HPFS_FS=y
CONFIG_SYSV_FS=y
CONFIG_AFFS_FS=y
CONFIG_HPFS_FS=m
CONFIG_SYSV_FS=m
CONFIG_AFFS_FS=m
CONFIG_ROMFS_FS=m
CONFIG_AMIGA_PARTITION=y
CONFIG_UFS_FS=y
CONFIG_BSD_DISKLABEL=y
......
arch/sparc64/kernel/Makefile
View file @ 0939a7a4
# $Id: Makefile,v 1.5 1997/03/04 16:26:54 jj Exp $
# $Id: Makefile,v 1.7 1997/03/18 17:59:15 jj Exp $
# Makefile for the linux kernel.
#
# Note! Dependencies are done automagically by 'make dep', which also
......@@ -16,7 +16,7 @@
all: kernel.o head.o
O_TARGET := kernel.o
O_OBJS := etrap.o rtrap.o hack.o process.o # signal32.o
O_OBJS := etrap.o rtrap.o hack.o process.o setup.o cpu.o idprom.o systbls.o traps.o entry.o devices.o auxio.o ioport.o # signal32.o
OX_OBJS := sparc64_ksyms.o
head.o: head.S
......
arch/sparc64/kernel/auxio.c 0 → 100644
View file @ 0939a7a4
/* auxio.c: Probing for the Sparc AUXIO register at boot time.
*
* Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
*/
#include <linux/stddef.h>
#include <linux/init.h>
#include <asm/oplib.h>
#include <asm/io.h>
#include <asm/auxio.h>
#include <asm/sbus.h>
/* Probe and map in the Auxiliary I/O register */
unsigned char *auxio_register;
__initfunc(void auxio_probe(void))
{
struct linux_sbus *bus;
struct linux_sbus_device *sdev = 0;
struct linux_prom_registers auxregs[1];
for_each_sbus(bus) {
for_each_sbusdev(sdev, bus) {
if(!strcmp(sdev->prom_name, "auxio")) {
break;
}
}
}
if (!sdev) {
prom_printf("Cannot find auxio node, cannot continue...\n");
prom_halt();
}
prom_getproperty(sdev->prom_node, "reg", (char *) auxregs, sizeof(auxregs));
prom_apply_sbus_ranges(sdev->my_bus, auxregs, 0x1, sdev);
/* Map the register both read and write */
auxio_register = (unsigned char *) sparc_alloc_io(auxregs[0].phys_addr, 0,
auxregs[0].reg_size,
"auxiliaryIO",
auxregs[0].which_io, 0x0);
TURN_ON_LED;
}
arch/sparc64/kernel/cpu.c 0 → 100644
View file @ 0939a7a4
/* cpu.c: Dinky routines to look for the kind of Sparc cpu
* we are on.
*
* Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
*/
#include <linux/kernel.h>
#include <linux/init.h>
#include <asm/system.h>
struct cpu_iu_info {
short manuf;
short impl;
char* cpu_name; /* should be enough I hope... */
};
struct cpu_fp_info {
short manuf;
short impl;
char fpu_vers;
char* fp_name;
};
/* In order to get the fpu type correct, you need to take the IDPROM's
* machine type value into consideration too. I will fix this.
*/
struct cpu_fp_info linux_sparc_fpu[] = {
{ 0x17, 0x10, 0, "FIXME: UltraSparc I FPU"},
};
#define NSPARCFPU (sizeof(linux_sparc_fpu)/sizeof(struct cpu_fp_info))
struct cpu_iu_info linux_sparc_chips[] = {
{ 0x17, 0x10, "FIXME: UltraSparc I"},
};
#define NSPARCCHIPS (sizeof(linux_sparc_chips)/sizeof(struct cpu_iu_info))
char *sparc_cpu_type[NCPUS] = { "cpu-oops", "cpu-oops1", "cpu-oops2", "cpu-oops3" };
char *sparc_fpu_type[NCPUS] = { "fpu-oops", "fpu-oops1", "fpu-oops2", "fpu-oops3" };
unsigned int fsr_storage;
__initfunc(void cpu_probe(void))
{
int manuf, impl;
unsigned i, cpuid;
long ver, fpu_vers;
cpuid = get_cpuid();
__asm__ __volatile__ ("rdpr %%ver, %0; stx %%fsr, [%1]" : "=r" (ver) : "r" (&fpu_vers));
manuf = ((ver >> 48)&0xffff);
impl = ((ver >> 32)&0xffff);
fpu_vers = ((fpu_vers>>17)&0x7);
for(i = 0; i<NSPARCCHIPS; i++) {
if(linux_sparc_chips[i].manuf == manuf)
if(linux_sparc_chips[i].impl == impl) {
sparc_cpu_type[cpuid] = linux_sparc_chips[i].cpu_name;
break;
}
}
if(i==NSPARCCHIPS) {
printk("DEBUG: manuf = 0x%x impl = 0x%x\n", manuf,
impl);
sparc_cpu_type[cpuid] = "Unknow CPU";
}
for(i = 0; i<NSPARCFPU; i++) {
if(linux_sparc_fpu[i].manuf == manuf && linux_sparc_fpu[i].impl == impl)
if(linux_sparc_fpu[i].fpu_vers == fpu_vers) {
sparc_fpu_type[cpuid] = linux_sparc_fpu[i].fp_name;
break;
}
}
if(i == NSPARCFPU) {
printk("DEBUG: manuf = 0x%x impl = 0x%x fsr.vers = 0x%x\n", manuf, impl,
(unsigned)fpu_vers);
sparc_fpu_type[cpuid] = "Unknown FPU";
}
}
arch/sparc64/kernel/devices.c 0 → 100644
View file @ 0939a7a4
/* devices.c: Initial scan of the prom device tree for important
* Sparc device nodes which we need to find.
*
* Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
*/
#include <linux/kernel.h>
#include <linux/tasks.h>
#include <linux/config.h>
#include <linux/init.h>
#include <asm/page.h>
#include <asm/oplib.h>
#include <asm/smp.h>
#include <asm/system.h>
struct prom_cpuinfo linux_cpus[NCPUS];
int linux_num_cpus;
extern void cpu_probe(void);
__initfunc(unsigned long
device_scan(unsigned long mem_start))
{
char node_str[128];
int nd, prom_node_cpu, thismid;
int cpu_nds[NCPUS]; /* One node for each cpu */
int cpu_ctr = 0;
prom_getstring(prom_root_node, "device_type", node_str, sizeof(node_str));
if(strcmp(node_str, "cpu") == 0) {
cpu_nds[0] = prom_root_node;
cpu_ctr++;
} else {
int scan;
scan = prom_getchild(prom_root_node);
prom_printf("root child is %08x\n", (unsigned) scan);
nd = 0;
while((scan = prom_getsibling(scan)) != 0) {
prom_getstring(scan, "device_type", node_str, sizeof(node_str));
if(strcmp(node_str, "cpu") == 0) {
cpu_nds[cpu_ctr] = scan;
linux_cpus[cpu_ctr].prom_node = scan;
prom_getproperty(scan, "mid", (char *) &thismid, sizeof(thismid));
linux_cpus[cpu_ctr].mid = thismid;
prom_printf("Found CPU %d <node=%08x,mid=%d>\n",
cpu_ctr, (unsigned) scan,
thismid);
cpu_ctr++;
}
};
if(cpu_ctr == 0) {
printk("No CPU nodes found, cannot continue.\n");
halt();
}
printk("Found %d CPU prom device tree node(s).\n", cpu_ctr);
};
prom_node_cpu = cpu_nds[0];
linux_num_cpus = cpu_ctr;
cpu_probe();
return mem_start;
}
arch/sparc64/kernel/entry.S 0 → 100644
View file @ 0939a7a4
/* $Id: entry.S,v 1.1 1997/03/18 17:58:59 jj Exp $
* arch/sparc64/kernel/entry.S: Sparc64 trap low-level entry points.
*
* Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
* Copyright (C) 1996 Eddie C. Dost (ecd@skynet.be)
* Copyright (C) 1996 Miguel de Icaza (miguel@nuclecu.unam.mx)
* Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
*/
#include <linux/config.h>
#include <linux/errno.h>
#include <asm/head.h>
#include <asm/asi.h>
#include <asm/smp.h>
#include <asm/ptrace.h>
#include <asm/page.h>
#include <asm/signal.h>
#define curptr g6
#define NR_SYSCALLS 256 /* Each OS is different... */
.text
.align 4
linux_sparc_ni_syscall:
sethi %hi(sys_ni_syscall), %l7
or %l7, %lo(sys_ni_syscall), %l7
ba,pt %xcc,syscall_is_too_hard
add %l7, %g4, %l7
linux_fast_syscall:
andn %l7, 3, %l7
mov %i0, %o0
mov %i1, %o1
mov %i2, %o2
jmpl %l7 + %g0, %g0
mov %i3, %o3
linux_syscall_trace:
call syscall_trace
nop
mov %i0, %o0
mov %i1, %o1
mov %i2, %o2
mov %i3, %o3
ba,pt %xcc, 2f
mov %i4, %o4
.globl ret_from_syscall
ret_from_syscall:
ba,pt %xcc, ret_sys_call
ldx [%sp + STACK_BIAS + REGWIN_SZ + PT_I0], %o0
/* Linux native and SunOS system calls enter here... */
.align 4
.globl linux_sparc_syscall
linux_sparc_syscall:
/* Direct access to user regs, must faster. */
cmp %g1, NR_SYSCALLS
add %l7, %g4, %l7
bgeu,pn %xcc, linux_sparc_ni_syscall
sll %g1, 3, %l4
ldx [%l7 + %l4], %l7
andcc %l7, 1, %g0
bne,pn %icc, linux_fast_syscall
/* Just do the next insn in the delay slot */
.globl syscall_is_too_hard
syscall_is_too_hard:
mov %i0, %o0
mov %i1, %o1
mov %i2, %o2
ldx [%curptr + AOFF_task_flags], %l5
mov %i3, %o3
mov %i4, %o4
andcc %l5, 0x20, %g0
bne,pn %icc, linux_syscall_trace
mov %i0, %l5
2:
call %l7
mov %i5, %o5
stx %o0, [%sp + STACK_BIAS + REGWIN_SZ + PT_I0]
.globl ret_sys_call
ret_sys_call:
ldx [%curptr + AOFF_task_flags], %l6
mov %ulo(TSTATE_XCARRY | TSTATE_ICARRY), %g2
ldx [%sp + STACK_BIAS + REGWIN_SZ + PT_TSTATE], %g3
cmp %o0, -ENOIOCTLCMD
sllx %g2, 32, %g2
bgeu,pn %xcc, 1f
andcc %l6, 0x20, %l6
/* System call success, clear Carry condition code. */
andn %g3, %g2, %g3
clr %l6
stx %g3, [%sp + STACK_BIAS + REGWIN_SZ + PT_TSTATE]
bne,pn %icc, linux_syscall_trace2
ldx [%sp + STACK_BIAS + REGWIN_SZ + PT_TNPC], %l1 /* pc = npc */
add %l1, 0x4, %l2 /* npc = npc+4 */
stx %l1, [%sp + STACK_BIAS + REGWIN_SZ + PT_TPC]
ba,pt %xcc, rtrap
stx %l2, [%sp + STACK_BIAS + REGWIN_SZ + PT_TNPC]
1:
/* System call failure, set Carry condition code.
* Also, get abs(errno) to return to the process.
*/
sub %g0, %o0, %o0
or %g3, %g2, %g3
stx %o0, [%sp + STACK_BIAS + REGWIN_SZ + PT_I0]
mov 1, %l6
stx %g3, [%sp + STACK_BIAS + REGWIN_SZ + PT_TSTATE]
bne,pn %icc, linux_syscall_trace2
ldx [%sp + STACK_BIAS + REGWIN_SZ + PT_TNPC], %l1 /* pc = npc */
add %l1, 0x4, %l2 /* npc = npc+4 */
stx %l1, [%sp + STACK_BIAS + REGWIN_SZ + PT_TPC]
ba,pt %xcc, rtrap
stx %l2, [%sp + STACK_BIAS + REGWIN_SZ + PT_TNPC]
linux_syscall_trace2:
call syscall_trace
add %l1, 0x4, %l2 /* npc = npc+4 */
stx %l1, [%sp + STACK_BIAS + REGWIN_SZ + PT_TPC]
ba,pt %xcc, rtrap
stx %l2, [%sp + STACK_BIAS + REGWIN_SZ + PT_TNPC]
/* End of entry.S */
arch/sparc64/kernel/etrap.S
View file @ 0939a7a4
/* $Id: etrap.S,v 1.4 1997/03/04 16:26:58 jj Exp $
/* $Id: etrap.S,v 1.5 1997/03/13 08:24:01 jj Exp $
* etrap.S: Preparing for entry into the kernel on Sparc V9.
*
* Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
......@@ -18,16 +18,17 @@ etrap:
rdpr %tstate, %g1
be,pn %xcc, 1f /* What happens more often? etrap when already in priv or from userland? */
sllx %g6, 32, %g6
/* Just when going from userland to privileged mode, we have to change this stuff. */
sll %g2, 3, %g2
wrpr %g2, %wstate
rdpr %canrestore, %g5
wrpr %g0, 0, %canrestore
wrpr %g5, 0, %otherwin
1:
sethi %hi(current_set), %g4
or %g4, %lo(current_set), %g4
rdpr %tpc, %g2
rdpr %canrestore, %g5
rdpr %tnpc, %g3
wrpr %g5, 0, %otherwin
wrpr %g0, 0, %canrestore
ldx [%g6 + %g4], %g6
#ifdef __SMP__
/* FIXME: Fix the above insn for SMP */
......
arch/sparc64/kernel/hack.S
View file @ 0939a7a4
This diff is collapsed.
arch/sparc64/kernel/head.S
View file @ 0939a7a4
/* $Id: head.S,v 1.9 1997/02/26 11:09:25 jj Exp $
/* $Id: head.S,v 1.17 1997/03/18 17:59:37 jj Exp $
* head.S: Initial boot code for the Sparc64 port of Linux.
*
* Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
* Copyright (C) 1996 David Sitsky (David.Sitsky@anu.edu.au)
* Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
* Copyright (C) 1997 Miguel de Icaza (miguel@nuclecu.unam.mx)
*/
#include <linux/version.h>
......@@ -12,12 +14,14 @@
#include <asm/page.h>
#include <asm/pgtable.h>
#include <asm/errno.h>
#include <asm/lsu.h>
/* This section from from _start to sparc64_boot_end should fit into
0xfffff80000004000 to 0xfffff80000008000 and will be sharing space
with bootup_user_stack, which is from 0xfffff80000004000 to
0xfffff80000006000 and bootup_kernel_stack, which is from
0xfffff80000006000 to 0xfffff80000008000. */
* 0xffff.f800.0000.4000 to 0xffff.f800.0000.8000 and will be sharing space
* with bootup_user_stack, which is from 0xffff.f800.0000.4000 to
* 0xffff.f800.0000.6000 and bootup_kernel_stack, which is from
* 0xffff.f800.0000.6000 to 0xffff.f800.0000.8000.
*/
.text
.globl start, _start
......@@ -26,12 +30,15 @@ start:
bootup_user_stack:
! 0xfffff80000004000
b sparc64_boot
rdpr %ver, %g1 /* Get VERSION register. */
flushw /* Flush register file. */
/* This stuff has to be in sync with SILO and other potential boot loaders
* Fields should be kept upward compatible and whenever any change is made,
* HdrS version should be incremented.
*/
.global root_flags, ram_flags, root_dev
.global ramdisk_image, ramdisk_size
.ascii "HdrS"
.word LINUX_VERSION_CODE
.half 0x0201 /* HdrS version */
......@@ -47,59 +54,80 @@ ramdisk_size:
.word 0
.word reboot_command
sparc64_boot:
/* We must be careful, 32-bit OpenBOOT will get confused if it
* tries to save away a register window to a 64-bit kernel
* stack address. Flush all windows, disable interrupts,
* remap if necessary, jump onto kernel trap table, then kernel
* stack, or else we die.
*
* PROM entry point is on %o4
*/
flushw /* Flush register file. */
sparc64_boot:
mov (LSU_CONTROL_IC|LSU_CONTROL_DC|LSU_CONTROL_IM|LSU_CONTROL_DM), %g1
stxa %g1, [%g0] ASI_LSU_CONTROL
/*
* Make sure we are in privileged mode, have address masking,
* using the ordinary globals and have enabled floating
* point.
*/
wrpr %g0, 0xf, %pil /* Interrupts off. */
wrpr %g0, (PSTATE_PRIV|PSTATE_PEF), %pstate
/* Remap ourselves to upper 64-bit addresses if necessary.
/* Check if we are mapped where we expect to be in virtual
* memory. The Solaris /boot elf format bootloader
* will peek into our elf header and load us where
* we want to be, otherwise we have to re-map.
*/
sethi %uhi(PAGE_OFFSET), %g4
current_pc:
rd %pc, %g2
rd %pc, %g3
sethi %uhi(KERNBASE), %g4
sllx %g4, 32, %g4
sethi %hi(current_pc), %g3
or %g3, %lo(current_pc), %g3
add %g4, %g3, %g3
cmp %g3, %g2
be go_to_highmem
/* Check the run time program counter. */
set current_pc, %g5
add %g5, %g4, %g5
cmp %g3, %g5
be %xcc,sun4u_init
nop
/* Remap ourselves into high addresses. */
create_mappings:
/* %g5 holds the tlb data */
sethi %uhi(_PAGE_VALID | _PAGE_SZ4MB), %g5
sllx %g5, 32, %g5
or %g5, (_PAGE_CP | _PAGE_CV | _PAGE_P | _PAGE_W | _PAGE_G | _PAGE_L), %g5
or %g5, (_PAGE_CP | _PAGE_CV | _PAGE_P | _PAGE_L | _PAGE_W | _PAGE_G), %g5
/* Be real fucking anal... */
stxa %g0, [%g4] ASI_IMMU_DEMAP
stxa %g0, [%g4] ASI_DMMU_DEMAP
membar #Sync
flush %g4
/* We aren't mapped in at KERNBASE, so we need to create
* an I and D tlb entry to map KERNBASE to 0. Both entries
* are 4 Megs mappings and are locked in.
*/
set TLB_TAG_ACCESS, %g3 /* 0x30 */
mov TLB_TAG_ACCESS, %g6
stxa %g4, [%g6] ASI_IMMU
stxa %g5, [%g0] ASI_ITLB_DATA_IN
stxa %g4, [%g3] ASI_IMMU /* 0x50 */
stxa %g5, [%g0] ASI_ITLB_DATA_IN /* 0x54 */
membar #Sync
flush %g4
stxa %g4, [%g6] ASI_DMMU
/* Put KERNBASE into the I/D Tag Access Register (TAR) */
stxa %g4, [%g3] ASI_DMMU /* 0x58 */
stxa %g5, [%g0] ASI_DTLB_DATA_IN
membar #Sync
flush %g4
/* FIXME: Should clean here the page @ phys. 0 and map one page @ */
nop
nop
membar #Sync
go_to_highmem:
jmpl %g3 + (execute_in_high_mem - current_pc), %g0
ba,pt %xcc, go_to_highmem
nop
execute_in_high_mem:
/* Now do a non-relative jump so that PC is in high-memory */
go_to_highmem:
set sun4u_init, %g1
jmpl %g1 + %g4, %g0
nop
sun4u_init:
/* Remap our prom interface code */
sethi %hi(__p1275_loc), %g7
or %g7, (_PAGE_CP | _PAGE_CV | _PAGE_P | _PAGE_W | _PAGE_G | _PAGE_L), %g7
......@@ -114,29 +142,40 @@ execute_in_high_mem:
stxa %g3, [%g6] ASI_IMMU
stxa %g5, [%g0] ASI_ITLB_DATA_IN
membar #Sync
flush %g3
stxa %g3, [%g6] ASI_DMMU
stxa %g5, [%g0] ASI_DTLB_DATA_IN
membar #Sync
flush %g3
sethi %hi(nwindows), %g7
nop
nop
membar #Sync
/* Compute the number of windows in this machine
* store this in nwindows and nwindowsm1
*/
rdpr %ver, %g1 /* Get VERSION register. */
sethi %hi(nwindows), %g2
and %g1, VERS_MAXWIN, %g5
add %g7, %lo(nwindows), %g7
or %g2,%lo(nwindows),%g2
add %g5, 1, %g6
add %g7, (nwindows - nwindowsm1), %g3
stx %g6, [%g7 + %g4]
add %g2, (nwindows - nwindowsm1), %g3
stx %g6, [%g2 + %g4]
stx %g5, [%g3 + %g4]
mov %sp, %o1 ! second argument to prom_init
sethi %hi(init_task), %g6
or %g6, %lo(init_task), %g6
add %g6, %g4, %g6 ! g6 usage is fixed as well
mov %sp, %l6
mov %o4, %l7
/* FIXME: Initialize MMU globals??? */
#if 0
/* This is to dangerous for now... To many traps unfilled yet... */
sethi %hi(sparc64_ttable_tl0), %g5
add %g5, %g4, %g5
wrpr %g5, %tba
#endif
sethi %hi(bootup_kernel_stack + 0x2000 - STACK_BIAS - REGWIN_SZ), %g5
or %g5, %lo(bootup_kernel_stack + 0x2000 - STACK_BIAS - REGWIN_SZ), %g5
......@@ -145,9 +184,36 @@ execute_in_high_mem:
wrpr %g0, PSTATE_PEF | PSTATE_PRIV, %pstate
wrpr %g0, 0, %wstate
wrpr %g0, 0x0, %tl
fzero %f48
fzero %f50
fzero %f52
fzero %f54
fzero %f56
fzero %f58
fzero %f60
fzero %f62
/* Clear the bss */
sethi %hi(8191), %l2
or %l2, %lo(8191), %l2
sethi %hi(__bss_start), %l0
or %l0, %lo(__bss_start), %l0
sethi %hi(_end), %l1
or %l1, %lo(_end), %l1
add %l1, %l2, %l1
andn %l1, %l2, %l1
add %l2, 1, %l2
add %l0, %g4, %o0
1:
call bzero_1page
add %l0, %l2, %l0
cmp %l0, %l1
blu,pt %xcc, 1b
add %l0, %g4, %o0
mov %l6, %o1 ! OpenPROM stack
call prom_init
mov %o4, %o0 ! OpenPROM cif handler
mov %l7, %o0 ! OpenPROM cif handler
/* Off we go.... */
call start_kernel
......@@ -165,18 +231,11 @@ bootup_kernel_stack:
#include "ttable.S"
.global root_flags
.global ram_flags
.global root_dev
.global ramdisk_image
.global ramdisk_size
.data
.align 8
.globl nwindows, nwindowsm1
nwindows: .xword 0
nwindowsm1: .xword 0
.section ".fixup",#alloc,#execinstr
.globl __ret_efault
__ret_efault:
......
arch/sparc64/kernel/ioport.c
View file @ 0939a7a4
/* $Id: ioport.c,v 1.1 1996/12/28 18:39:39 davem Exp $
/* $Id: ioport.c,v 1.2 1997/03/18 17:59:31 jj Exp $
* ioport.c: Simple io mapping allocator.
*
* Copyright (C) 1995,1996 David S. Miller (davem@caip.rutgers.edu)
......@@ -29,21 +29,21 @@ unsigned long sparc_iobase_vaddr = IOBASE_VADDR;
* to use your own mapping, but in practice this should not be used.
*
* Input:
* address: the obio address to map
* address: Physical address to map
* virtual: if non zero, specifies a fixed virtual address where
* the mapping should take place.
* len: the length of the mapping
* bus_type: The bus on which this io area sits.
* bus_type: Optional high word of physical address.
*
* Returns:
* The virtual address where the mapping actually took place.
*/
void *sparc_alloc_io (void *address, void *virtual, int len, char *name,
int bus_type, int rdonly)
unsigned bus_type, int rdonly)
{
unsigned long vaddr, base_address;
unsigned long addr = (unsigned long) address;
unsigned long addr = ((unsigned long) address) + (((unsigned long) bus_type) << 32);
unsigned long offset = (addr & (~PAGE_MASK));
if (virtual) {
......@@ -74,7 +74,7 @@ void *sparc_alloc_io (void *address, void *virtual, int len, char *name,
base_address = vaddr;
/* Do the actual mapping */
for (; len > 0; len -= PAGE_SIZE) {
mapioaddr(addr, vaddr, bus_type, rdonly);
mapioaddr(addr, vaddr, rdonly);
vaddr += PAGE_SIZE;
addr += PAGE_SIZE;
}
......
arch/sparc64/kernel/rtrap.S
View file @ 0939a7a4
/* $Id: rtrap.S,v 1.2 1997/02/26 11:09:25 jj Exp $
* rtrap.S: Preparing for entry into the kernel on Sparc V9.
/* $Id: rtrap.S,v 1.4 1997/03/13 16:24:55 jj Exp $
* rtrap.S: Preparing for return from trap on Sparc V9.
*
* Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
* Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
*/
#include <asm/pstate.h>
......@@ -11,4 +11,84 @@
.align 4
.globl rtrap
rtrap:
/*not*/ done /*yet*/
sethi %hi(intr_count), %l0
or %l0, %lo(intr_count), %l0
ld [%l0 + %g4], %l1
sethi %hi(bh_active), %l2
brz,pt %l1, 2f
or %l2, %lo(bh_active), %l2
sethi %hi(bh_mask), %l1
or %l1, %lo(bh_mask), %l1
1:
ldx [%l2 + %g4], %l3
ldx [%l1 + %g4], %l4
andcc %l3, %l4, %g0
be,pt %xcc, 2f
mov 1, %l7
call do_bottom_half
st %l7, [%l0 + %g4]
ba,pt %xcc, 1b
st %g0, [%l0 + %g4]
2:
ldx [%sp + STACK_BIAS + REGWIN_SZ + PT_TSTATE], %l1
ldx [%sp + STACK_BIAS + REGWIN_SZ + PT_TPC], %l2
andcc %l1, TSTATE_PRIV, %l3
rdpr %pstate, %l7
be,pt %icc, to_user
andn %l7, PSTATE_IE, %l7
3:
ldx [%sp + STACK_BIAS + REGWIN_SZ + PT_G1], %g1
ldx [%sp + STACK_BIAS + REGWIN_SZ + PT_G2], %g2
ldx [%sp + STACK_BIAS + REGWIN_SZ + PT_G3], %g3
ldx [%sp + STACK_BIAS + REGWIN_SZ + PT_G4], %g4
ldx [%sp + STACK_BIAS + REGWIN_SZ + PT_G5], %g5
ldx [%sp + STACK_BIAS + REGWIN_SZ + PT_G6], %g6
ldx [%sp + STACK_BIAS + REGWIN_SZ + PT_G7], %g7
ldx [%sp + STACK_BIAS + REGWIN_SZ + PT_I0], %i0
ldx [%sp + STACK_BIAS + REGWIN_SZ + PT_I1], %i1
ldx [%sp + STACK_BIAS + REGWIN_SZ + PT_I2], %i2
ldx [%sp + STACK_BIAS + REGWIN_SZ + PT_I3], %i3
ldx [%sp + STACK_BIAS + REGWIN_SZ + PT_I4], %i4
ldx [%sp + STACK_BIAS + REGWIN_SZ + PT_I5], %i5
ldx [%sp + STACK_BIAS + REGWIN_SZ + PT_I6], %i6
ldx [%sp + STACK_BIAS + REGWIN_SZ + PT_I7], %i7
ldx [%sp + STACK_BIAS + REGWIN_SZ + PT_Y], %o3
ldx [%sp + STACK_BIAS + REGWIN_SZ + PT_TNPC], %o2
wr %o3, %g0, %y
wrpr %l7, %g0, %pstate
wrpr %g0, 1, %tl
wrpr %l1, %g0, %tstate
wrpr %l2, %g0, %tpc
brnz,pn %l3, 1f
wrpr %o2, %g0, %tnpc
/* we came here from to_user, ie. we have now AG */
restore
rdpr %wstate, %g1
rdpr %otherwin, %g2
srl %g1, 3, %g1
wrpr %g2, %g0, %canrestore
wrpr %g1, %g0, %wstate
wrpr %g0, %g0, %otherwin
retry
1:
restore
retry
to_user:
sethi %hi(need_resched), %l0
or %l0, %lo(need_resched), %l0
ld [%l0 + %g4], %l0
wrpr %o4, PSTATE_IE, %pstate
brz,pt %l0, 1f
ldx [%g6 + AOFF_task_signal], %l0
call schedule
nop
1:
ldx [%g6 + AOFF_task_blocked], %o0
or %l7, PSTATE_AG, %l7 ! Will need this for setting back wstate
andcc %l0, %o0, %g0
be,pt %xcc, 3b
mov %l5, %o2
mov %l6, %o3
add %sp, STACK_BIAS + REGWIN_SZ, %o1
call do_signal
add %o7, 3b-.-4, %o7
arch/sparc64/kernel/setup.c 0 → 100644
View file @ 0939a7a4
This diff is collapsed.
arch/sparc64/kernel/sparc64_ksyms.c
View file @ 0939a7a4
/* $Id: sparc64_ksyms.c,v 1.1 1997/03/03 16:51:45 jj Exp $
/* $Id: sparc64_ksyms.c,v 1.3 1997/03/18 17:59:10 jj Exp $
* arch/sparc/kernel/ksyms.c: Sparc specific ksyms support.
*
* Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
......@@ -74,24 +74,25 @@ EXPORT_SYMBOL(klock_info);
#endif
EXPORT_SYMBOL_PRIVATE(_lock_kernel);
EXPORT_SYMBOL_PRIVATE(_unlock_kernel);
EXPORT_SYMBOL(page_offset);
EXPORT_SYMBOL(stack_top);
EXPORT_SYMBOL(mstk48t02_regs);
EXPORT_SYMBOL(request_fast_irq);
EXPORT_SYMBOL(sparc_alloc_io);
EXPORT_SYMBOL(sparc_free_io);
#if 0
EXPORT_SYMBOL(io_remap_page_range);
EXPORT_SYMBOL(mmu_v2p);
EXPORT_SYMBOL(mmu_unlockarea);
EXPORT_SYMBOL(mmu_lockarea);
EXPORT_SYMBOL(mmu_get_scsi_sgl);
EXPORT_SYMBOL(mmu_get_scsi_one);
EXPORT_SYMBOL(mmu_release_scsi_sgl);
EXPORT_SYMBOL(mmu_release_scsi_one);
#endif
EXPORT_SYMBOL(sparc_dvma_malloc);
#if 0
EXPORT_SYMBOL(sun4c_unmapioaddr);
EXPORT_SYMBOL(srmmu_unmapioaddr);
#endif
#if CONFIG_SBUS
EXPORT_SYMBOL(SBus_chain);
EXPORT_SYMBOL(dma_chain);
......@@ -119,14 +120,12 @@ EXPORT_SYMBOL(prom_getproperty);
EXPORT_SYMBOL(prom_node_has_property);
EXPORT_SYMBOL(prom_setprop);
EXPORT_SYMBOL(prom_getbootargs);
EXPORT_SYMBOL(prom_apply_obio_ranges);
EXPORT_SYMBOL(prom_getname);
EXPORT_SYMBOL(prom_feval);
EXPORT_SYMBOL(prom_getstring);
EXPORT_SYMBOL(prom_apply_sbus_ranges);
EXPORT_SYMBOL(prom_getint);
EXPORT_SYMBOL(prom_getintdefault);
EXPORT_SYMBOL(romvec);
EXPORT_SYMBOL(__prom_getchild);
EXPORT_SYMBOL(__prom_getsibling);
......@@ -176,4 +175,3 @@ EXPORT_SYMBOL_NOVERS(memcmp);
EXPORT_SYMBOL_NOVERS(memcpy);
EXPORT_SYMBOL_NOVERS(memset);
EXPORT_SYMBOL_NOVERS(memmove);
EXPORT_SYMBOL_NOVERS(__ashrdi3);
arch/sparc64/kernel/systbls.S
View file @ 0939a7a4
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View file @ 0939a7a4
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arch/sparc64/lib/Makefile
View file @ 0939a7a4
# $Id: Makefile,v 1.1 1996/12/27 17:28:35 davem Exp $
# $Id: Makefile,v 1.5 1997/03/14 21:04:27 jj Exp $
# Makefile for Sparc library files..
#
CFLAGS := $(CFLAGS) -ansi
OBJS = memset.o blockops.o
OBJS = memset.o blockops.o locks.o memcpy.o strlen.o strncmp.o \
memscan.o strncpy_from_user.o strlen_user.o memcmp.o
lib.a: $(OBJS)
$(AR) rcs lib.a $(OBJS)
......@@ -16,6 +17,30 @@ blockops.o: blockops.S
memset.o: memset.S
$(CC) -D__ASSEMBLY__ -ansi -c -o memset.o memset.S
memcpy.o: memcpy.S
$(CC) -D__ASSEMBLY__ -ansi -c -o memcpy.o memcpy.S
strlen.o: strlen.S
$(CC) -D__ASSEMBLY__ -ansi -c -o strlen.o strlen.S
strncmp.o: strncmp.S
$(CC) -D__ASSEMBLY__ -ansi -c -o strncmp.o strncmp.S
memcmp.o: memcmp.S
$(CC) -D__ASSEMBLY__ -ansi -c -o memcmp.o memcmp.S
locks.o: locks.S
$(CC) -D__ASSEMBLY__ -ansi -c -o locks.o locks.S
memscan.o: memscan.S
$(CC) -D__ASSEMBLY__ -ansi -c -o memscan.o memscan.S
strncpy_from_user.o: strncpy_from_user.S
$(CC) -D__ASSEMBLY__ -ansi -c -o strncpy_from_user.o strncpy_from_user.S
strlen_user.o: strlen_user.S
$(CC) -D__ASSEMBLY__ -ansi -c -o strlen_user.o strlen_user.S
dep:
include $(TOPDIR)/Rules.make
arch/sparc64/lib/checksum.S 0 → 100644
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arch/sparc64/lib/memcmp.S 0 → 100644
View file @ 0939a7a4
/* $Id: memcmp.S,v 1.1 1997/03/14 21:04:23 jj Exp $
* Sparc64 optimized memcmp code.
*
* Copyright (C) 1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
*/
.text
.align 4
.globl __memcmp, memcmp
__memcmp:
memcmp:
brlez,pn %o2, 2f
sub %g0, %o2, %o3
add %o0, %o2, %o0
add %o1, %o2, %o1
ldub [%o0 + %o3], %o4
1:
ldub [%o1 + %o3], %o5
sub %o4, %o5, %o4
brnz,pn %o4, 3f
addcc %o3, 1, %o3
bne,a,pt %xcc, 1b
ldub [%o0 + %o3], %o5
2:
retl
clr %o0
3:
retl
mov %o4, %o0
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arch/sparc64/lib/memset.S
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The IDE driver Documentation is now in the linux/Documentation directory.
-mlord@pobox.com
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