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-rw-r--r--arch/sparc64/kernel/auxio.c2
-rw-r--r--arch/sparc64/kernel/entry.S116
-rw-r--r--arch/sparc64/kernel/irq.c171
-rw-r--r--arch/sparc64/kernel/kprobes.c83
-rw-r--r--arch/sparc64/kernel/semaphore.c12
-rw-r--r--arch/sparc64/kernel/signal32.c2
-rw-r--r--arch/sparc64/kernel/sparc64_ksyms.c1
-rw-r--r--arch/sparc64/kernel/sys_sparc.c8
-rw-r--r--arch/sparc64/kernel/trampoline.S3
9 files changed, 136 insertions, 262 deletions
diff --git a/arch/sparc64/kernel/auxio.c b/arch/sparc64/kernel/auxio.c
index a0716ccc2f4..8852c20c8d9 100644
--- a/arch/sparc64/kernel/auxio.c
+++ b/arch/sparc64/kernel/auxio.c
@@ -16,7 +16,7 @@
#include <asm/ebus.h>
#include <asm/auxio.h>
-/* This cannot be static, as it is referenced in entry.S */
+/* This cannot be static, as it is referenced in irq.c */
void __iomem *auxio_register = NULL;
enum auxio_type {
diff --git a/arch/sparc64/kernel/entry.S b/arch/sparc64/kernel/entry.S
index a47f2d0b1a2..eee516a71c1 100644
--- a/arch/sparc64/kernel/entry.S
+++ b/arch/sparc64/kernel/entry.S
@@ -271,8 +271,9 @@ cplus_fptrap_insn_1:
fmuld %f0, %f2, %f26
faddd %f0, %f2, %f28
fmuld %f0, %f2, %f30
+ membar #Sync
b,pt %xcc, fpdis_exit
- membar #Sync
+ nop
2: andcc %g5, FPRS_DU, %g0
bne,pt %icc, 3f
fzero %f32
@@ -301,8 +302,9 @@ cplus_fptrap_insn_2:
fmuld %f32, %f34, %f58
faddd %f32, %f34, %f60
fmuld %f32, %f34, %f62
+ membar #Sync
ba,pt %xcc, fpdis_exit
- membar #Sync
+ nop
3: mov SECONDARY_CONTEXT, %g3
add %g6, TI_FPREGS, %g1
ldxa [%g3] ASI_DMMU, %g5
@@ -699,116 +701,6 @@ utrap_ill:
ba,pt %xcc, rtrap
clr %l6
-#ifdef CONFIG_BLK_DEV_FD
- .globl floppy_hardint
-floppy_hardint:
- wr %g0, (1 << 11), %clear_softint
- sethi %hi(doing_pdma), %g1
- ld [%g1 + %lo(doing_pdma)], %g2
- brz,pn %g2, floppy_dosoftint
- sethi %hi(fdc_status), %g3
- ldx [%g3 + %lo(fdc_status)], %g3
- sethi %hi(pdma_vaddr), %g5
- ldx [%g5 + %lo(pdma_vaddr)], %g4
- sethi %hi(pdma_size), %g5
- ldx [%g5 + %lo(pdma_size)], %g5
-
-next_byte:
- lduba [%g3] ASI_PHYS_BYPASS_EC_E, %g7
- andcc %g7, 0x80, %g0
- be,pn %icc, floppy_fifo_emptied
- andcc %g7, 0x20, %g0
- be,pn %icc, floppy_overrun
- andcc %g7, 0x40, %g0
- be,pn %icc, floppy_write
- sub %g5, 1, %g5
-
- inc %g3
- lduba [%g3] ASI_PHYS_BYPASS_EC_E, %g7
- dec %g3
- orcc %g0, %g5, %g0
- stb %g7, [%g4]
- bne,pn %xcc, next_byte
- add %g4, 1, %g4
-
- b,pt %xcc, floppy_tdone
- nop
-
-floppy_write:
- ldub [%g4], %g7
- orcc %g0, %g5, %g0
- inc %g3
- stba %g7, [%g3] ASI_PHYS_BYPASS_EC_E
- dec %g3
- bne,pn %xcc, next_byte
- add %g4, 1, %g4
-
-floppy_tdone:
- sethi %hi(pdma_vaddr), %g1
- stx %g4, [%g1 + %lo(pdma_vaddr)]
- sethi %hi(pdma_size), %g1
- stx %g5, [%g1 + %lo(pdma_size)]
- sethi %hi(auxio_register), %g1
- ldx [%g1 + %lo(auxio_register)], %g7
- lduba [%g7] ASI_PHYS_BYPASS_EC_E, %g5
- or %g5, AUXIO_AUX1_FTCNT, %g5
-/* andn %g5, AUXIO_AUX1_MASK, %g5 */
- stba %g5, [%g7] ASI_PHYS_BYPASS_EC_E
- andn %g5, AUXIO_AUX1_FTCNT, %g5
-/* andn %g5, AUXIO_AUX1_MASK, %g5 */
-
- nop; nop; nop; nop; nop; nop;
- nop; nop; nop; nop; nop; nop;
-
- stba %g5, [%g7] ASI_PHYS_BYPASS_EC_E
- sethi %hi(doing_pdma), %g1
- b,pt %xcc, floppy_dosoftint
- st %g0, [%g1 + %lo(doing_pdma)]
-
-floppy_fifo_emptied:
- sethi %hi(pdma_vaddr), %g1
- stx %g4, [%g1 + %lo(pdma_vaddr)]
- sethi %hi(pdma_size), %g1
- stx %g5, [%g1 + %lo(pdma_size)]
- sethi %hi(irq_action), %g1
- or %g1, %lo(irq_action), %g1
- ldx [%g1 + (11 << 3)], %g3 ! irqaction[floppy_irq]
- ldx [%g3 + 0x08], %g4 ! action->flags>>48==ino
- sethi %hi(ivector_table), %g3
- srlx %g4, 48, %g4
- or %g3, %lo(ivector_table), %g3
- sllx %g4, 5, %g4
- ldx [%g3 + %g4], %g4 ! &ivector_table[ino]
- ldx [%g4 + 0x10], %g4 ! bucket->iclr
- stwa %g0, [%g4] ASI_PHYS_BYPASS_EC_E ! ICLR_IDLE
- membar #Sync ! probably not needed...
- retry
-
-floppy_overrun:
- sethi %hi(pdma_vaddr), %g1
- stx %g4, [%g1 + %lo(pdma_vaddr)]
- sethi %hi(pdma_size), %g1
- stx %g5, [%g1 + %lo(pdma_size)]
- sethi %hi(doing_pdma), %g1
- st %g0, [%g1 + %lo(doing_pdma)]
-
-floppy_dosoftint:
- rdpr %pil, %g2
- wrpr %g0, 15, %pil
- sethi %hi(109f), %g7
- b,pt %xcc, etrap_irq
-109: or %g7, %lo(109b), %g7
-
- mov 11, %o0
- mov 0, %o1
- call sparc_floppy_irq
- add %sp, PTREGS_OFF, %o2
-
- b,pt %xcc, rtrap_irq
- nop
-
-#endif /* CONFIG_BLK_DEV_FD */
-
/* XXX Here is stuff we still need to write... -DaveM XXX */
.globl netbsd_syscall
netbsd_syscall:
diff --git a/arch/sparc64/kernel/irq.c b/arch/sparc64/kernel/irq.c
index 4dcb8af9409..42471257730 100644
--- a/arch/sparc64/kernel/irq.c
+++ b/arch/sparc64/kernel/irq.c
@@ -37,6 +37,7 @@
#include <asm/uaccess.h>
#include <asm/cache.h>
#include <asm/cpudata.h>
+#include <asm/auxio.h>
#ifdef CONFIG_SMP
static void distribute_irqs(void);
@@ -834,137 +835,65 @@ void handler_irq(int irq, struct pt_regs *regs)
}
#ifdef CONFIG_BLK_DEV_FD
-extern void floppy_interrupt(int irq, void *dev_cookie, struct pt_regs *regs);
+extern irqreturn_t floppy_interrupt(int, void *, struct pt_regs *);;
-void sparc_floppy_irq(int irq, void *dev_cookie, struct pt_regs *regs)
-{
- struct irqaction *action = *(irq + irq_action);
- struct ino_bucket *bucket;
- int cpu = smp_processor_id();
-
- irq_enter();
- kstat_this_cpu.irqs[irq]++;
-
- *(irq_work(cpu, irq)) = 0;
- bucket = get_ino_in_irqaction(action) + ivector_table;
-
- bucket->flags |= IBF_INPROGRESS;
-
- floppy_interrupt(irq, dev_cookie, regs);
- upa_writel(ICLR_IDLE, bucket->iclr);
-
- bucket->flags &= ~IBF_INPROGRESS;
-
- irq_exit();
-}
-#endif
-
-/* The following assumes that the branch lies before the place we
- * are branching to. This is the case for a trap vector...
- * You have been warned.
- */
-#define SPARC_BRANCH(dest_addr, inst_addr) \
- (0x10800000 | ((((dest_addr)-(inst_addr))>>2)&0x3fffff))
-
-#define SPARC_NOP (0x01000000)
+/* XXX No easy way to include asm/floppy.h XXX */
+extern unsigned char *pdma_vaddr;
+extern unsigned long pdma_size;
+extern volatile int doing_pdma;
+extern unsigned long fdc_status;
-static void install_fast_irq(unsigned int cpu_irq,
- irqreturn_t (*handler)(int, void *, struct pt_regs *))
+irqreturn_t sparc_floppy_irq(int irq, void *dev_cookie, struct pt_regs *regs)
{
- extern unsigned long sparc64_ttable_tl0;
- unsigned long ttent = (unsigned long) &sparc64_ttable_tl0;
- unsigned int *insns;
-
- ttent += 0x820;
- ttent += (cpu_irq - 1) << 5;
- insns = (unsigned int *) ttent;
- insns[0] = SPARC_BRANCH(((unsigned long) handler),
- ((unsigned long)&insns[0]));
- insns[1] = SPARC_NOP;
- __asm__ __volatile__("membar #StoreStore; flush %0" : : "r" (ttent));
-}
-
-int request_fast_irq(unsigned int irq,
- irqreturn_t (*handler)(int, void *, struct pt_regs *),
- unsigned long irqflags, const char *name, void *dev_id)
-{
- struct irqaction *action;
- struct ino_bucket *bucket = __bucket(irq);
- unsigned long flags;
-
- /* No pil0 dummy buckets allowed here. */
- if (bucket < &ivector_table[0] ||
- bucket >= &ivector_table[NUM_IVECS]) {
- unsigned int *caller;
-
- __asm__ __volatile__("mov %%i7, %0" : "=r" (caller));
- printk(KERN_CRIT "request_fast_irq: Old style IRQ registry attempt "
- "from %p, irq %08x.\n", caller, irq);
- return -EINVAL;
- }
-
- if (!handler)
- return -EINVAL;
+ if (likely(doing_pdma)) {
+ void __iomem *stat = (void __iomem *) fdc_status;
+ unsigned char *vaddr = pdma_vaddr;
+ unsigned long size = pdma_size;
+ u8 val;
+
+ while (size) {
+ val = readb(stat);
+ if (unlikely(!(val & 0x80))) {
+ pdma_vaddr = vaddr;
+ pdma_size = size;
+ return IRQ_HANDLED;
+ }
+ if (unlikely(!(val & 0x20))) {
+ pdma_vaddr = vaddr;
+ pdma_size = size;
+ doing_pdma = 0;
+ goto main_interrupt;
+ }
+ if (val & 0x40) {
+ /* read */
+ *vaddr++ = readb(stat + 1);
+ } else {
+ unsigned char data = *vaddr++;
- if ((bucket->pil == 0) || (bucket->pil == 14)) {
- printk("request_fast_irq: Trying to register shared IRQ 0 or 14.\n");
- return -EBUSY;
- }
+ /* write */
+ writeb(data, stat + 1);
+ }
+ size--;
+ }
- spin_lock_irqsave(&irq_action_lock, flags);
+ pdma_vaddr = vaddr;
+ pdma_size = size;
- action = *(bucket->pil + irq_action);
- if (action) {
- if (action->flags & SA_SHIRQ)
- panic("Trying to register fast irq when already shared.\n");
- if (irqflags & SA_SHIRQ)
- panic("Trying to register fast irq as shared.\n");
- printk("request_fast_irq: Trying to register yet already owned.\n");
- spin_unlock_irqrestore(&irq_action_lock, flags);
- return -EBUSY;
- }
+ /* Send Terminal Count pulse to floppy controller. */
+ val = readb(auxio_register);
+ val |= AUXIO_AUX1_FTCNT;
+ writeb(val, auxio_register);
+ val &= AUXIO_AUX1_FTCNT;
+ writeb(val, auxio_register);
- /*
- * We do not check for SA_SAMPLE_RANDOM in this path. Neither do we
- * support smp intr affinity in this path.
- */
- if (irqflags & SA_STATIC_ALLOC) {
- if (static_irq_count < MAX_STATIC_ALLOC)
- action = &static_irqaction[static_irq_count++];
- else
- printk("Request for IRQ%d (%s) SA_STATIC_ALLOC failed "
- "using kmalloc\n", bucket->pil, name);
- }
- if (action == NULL)
- action = (struct irqaction *)kmalloc(sizeof(struct irqaction),
- GFP_ATOMIC);
- if (!action) {
- spin_unlock_irqrestore(&irq_action_lock, flags);
- return -ENOMEM;
+ doing_pdma = 0;
}
- install_fast_irq(bucket->pil, handler);
- bucket->irq_info = action;
- bucket->flags |= IBF_ACTIVE;
-
- action->handler = handler;
- action->flags = irqflags;
- action->dev_id = NULL;
- action->name = name;
- action->next = NULL;
- put_ino_in_irqaction(action, irq);
- put_smpaff_in_irqaction(action, CPU_MASK_NONE);
-
- *(bucket->pil + irq_action) = action;
- enable_irq(irq);
-
- spin_unlock_irqrestore(&irq_action_lock, flags);
-
-#ifdef CONFIG_SMP
- distribute_irqs();
-#endif
- return 0;
+main_interrupt:
+ return floppy_interrupt(irq, dev_cookie, regs);
}
+EXPORT_SYMBOL(sparc_floppy_irq);
+#endif
/* We really don't need these at all on the Sparc. We only have
* stubs here because they are exported to modules.
diff --git a/arch/sparc64/kernel/kprobes.c b/arch/sparc64/kernel/kprobes.c
index 7066d7ba667..bdac631cf01 100644
--- a/arch/sparc64/kernel/kprobes.c
+++ b/arch/sparc64/kernel/kprobes.c
@@ -6,7 +6,6 @@
#include <linux/config.h>
#include <linux/kernel.h>
#include <linux/kprobes.h>
-
#include <asm/kdebug.h>
#include <asm/signal.h>
@@ -47,25 +46,59 @@ void arch_copy_kprobe(struct kprobe *p)
{
p->ainsn.insn[0] = *p->addr;
p->ainsn.insn[1] = BREAKPOINT_INSTRUCTION_2;
+ p->opcode = *p->addr;
}
-void arch_remove_kprobe(struct kprobe *p)
+void arch_arm_kprobe(struct kprobe *p)
{
+ *p->addr = BREAKPOINT_INSTRUCTION;
+ flushi(p->addr);
}
-/* kprobe_status settings */
-#define KPROBE_HIT_ACTIVE 0x00000001
-#define KPROBE_HIT_SS 0x00000002
+void arch_disarm_kprobe(struct kprobe *p)
+{
+ *p->addr = p->opcode;
+ flushi(p->addr);
+}
+
+void arch_remove_kprobe(struct kprobe *p)
+{
+}
static struct kprobe *current_kprobe;
static unsigned long current_kprobe_orig_tnpc;
static unsigned long current_kprobe_orig_tstate_pil;
static unsigned int kprobe_status;
+static struct kprobe *kprobe_prev;
+static unsigned long kprobe_orig_tnpc_prev;
+static unsigned long kprobe_orig_tstate_pil_prev;
+static unsigned int kprobe_status_prev;
-static inline void prepare_singlestep(struct kprobe *p, struct pt_regs *regs)
+static inline void save_previous_kprobe(void)
+{
+ kprobe_status_prev = kprobe_status;
+ kprobe_orig_tnpc_prev = current_kprobe_orig_tnpc;
+ kprobe_orig_tstate_pil_prev = current_kprobe_orig_tstate_pil;
+ kprobe_prev = current_kprobe;
+}
+
+static inline void restore_previous_kprobe(void)
+{
+ kprobe_status = kprobe_status_prev;
+ current_kprobe_orig_tnpc = kprobe_orig_tnpc_prev;
+ current_kprobe_orig_tstate_pil = kprobe_orig_tstate_pil_prev;
+ current_kprobe = kprobe_prev;
+}
+
+static inline void set_current_kprobe(struct kprobe *p, struct pt_regs *regs)
{
current_kprobe_orig_tnpc = regs->tnpc;
current_kprobe_orig_tstate_pil = (regs->tstate & TSTATE_PIL);
+ current_kprobe = p;
+}
+
+static inline void prepare_singlestep(struct kprobe *p, struct pt_regs *regs)
+{
regs->tstate |= TSTATE_PIL;
/*single step inline, if it a breakpoint instruction*/
@@ -78,17 +111,6 @@ static inline void prepare_singlestep(struct kprobe *p, struct pt_regs *regs)
}
}
-static inline void disarm_kprobe(struct kprobe *p, struct pt_regs *regs)
-{
- *p->addr = p->opcode;
- flushi(p->addr);
-
- regs->tpc = (unsigned long) p->addr;
- regs->tnpc = current_kprobe_orig_tnpc;
- regs->tstate = ((regs->tstate & ~TSTATE_PIL) |
- current_kprobe_orig_tstate_pil);
-}
-
static int kprobe_handler(struct pt_regs *regs)
{
struct kprobe *p;
@@ -109,8 +131,18 @@ static int kprobe_handler(struct pt_regs *regs)
unlock_kprobes();
goto no_kprobe;
}
- disarm_kprobe(p, regs);
- ret = 1;
+ /* We have reentered the kprobe_handler(), since
+ * another probe was hit while within the handler.
+ * We here save the original kprobes variables and
+ * just single step on the instruction of the new probe
+ * without calling any user handlers.
+ */
+ save_previous_kprobe();
+ set_current_kprobe(p, regs);
+ p->nmissed++;
+ kprobe_status = KPROBE_REENTER;
+ prepare_singlestep(p, regs);
+ return 1;
} else {
p = current_kprobe;
if (p->break_handler && p->break_handler(p, regs))
@@ -138,8 +170,8 @@ static int kprobe_handler(struct pt_regs *regs)
goto no_kprobe;
}
+ set_current_kprobe(p, regs);
kprobe_status = KPROBE_HIT_ACTIVE;
- current_kprobe = p;
if (p->pre_handler && p->pre_handler(p, regs))
return 1;
@@ -245,12 +277,20 @@ static inline int post_kprobe_handler(struct pt_regs *regs)
if (!kprobe_running())
return 0;
- if (current_kprobe->post_handler)
+ if ((kprobe_status != KPROBE_REENTER) && current_kprobe->post_handler) {
+ kprobe_status = KPROBE_HIT_SSDONE;
current_kprobe->post_handler(current_kprobe, regs, 0);
+ }
resume_execution(current_kprobe, regs);
+ /*Restore back the original saved kprobes variables and continue. */
+ if (kprobe_status == KPROBE_REENTER) {
+ restore_previous_kprobe();
+ goto out;
+ }
unlock_kprobes();
+out:
preempt_enable_no_resched();
return 1;
@@ -392,3 +432,4 @@ int longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)
}
return 0;
}
+
diff --git a/arch/sparc64/kernel/semaphore.c b/arch/sparc64/kernel/semaphore.c
index 63496c43fe1..a809e63f03e 100644
--- a/arch/sparc64/kernel/semaphore.c
+++ b/arch/sparc64/kernel/semaphore.c
@@ -32,8 +32,9 @@ static __inline__ int __sem_update_count(struct semaphore *sem, int incr)
" add %1, %4, %1\n"
" cas [%3], %0, %1\n"
" cmp %0, %1\n"
+" membar #StoreLoad | #StoreStore\n"
" bne,pn %%icc, 1b\n"
-" membar #StoreLoad | #StoreStore\n"
+" nop\n"
: "=&r" (old_count), "=&r" (tmp), "=m" (sem->count)
: "r" (&sem->count), "r" (incr), "m" (sem->count)
: "cc");
@@ -71,8 +72,9 @@ void up(struct semaphore *sem)
" cmp %%g1, %%g7\n"
" bne,pn %%icc, 1b\n"
" addcc %%g7, 1, %%g0\n"
+" membar #StoreLoad | #StoreStore\n"
" ble,pn %%icc, 3f\n"
-" membar #StoreLoad | #StoreStore\n"
+" nop\n"
"2:\n"
" .subsection 2\n"
"3: mov %0, %%g1\n"
@@ -128,8 +130,9 @@ void __sched down(struct semaphore *sem)
" cmp %%g1, %%g7\n"
" bne,pn %%icc, 1b\n"
" cmp %%g7, 1\n"
+" membar #StoreLoad | #StoreStore\n"
" bl,pn %%icc, 3f\n"
-" membar #StoreLoad | #StoreStore\n"
+" nop\n"
"2:\n"
" .subsection 2\n"
"3: mov %0, %%g1\n"
@@ -233,8 +236,9 @@ int __sched down_interruptible(struct semaphore *sem)
" cmp %%g1, %%g7\n"
" bne,pn %%icc, 1b\n"
" cmp %%g7, 1\n"
+" membar #StoreLoad | #StoreStore\n"
" bl,pn %%icc, 3f\n"
-" membar #StoreLoad | #StoreStore\n"
+" nop\n"
"2:\n"
" .subsection 2\n"
"3: mov %2, %%g1\n"
diff --git a/arch/sparc64/kernel/signal32.c b/arch/sparc64/kernel/signal32.c
index 9a375e975cf..f28428f4170 100644
--- a/arch/sparc64/kernel/signal32.c
+++ b/arch/sparc64/kernel/signal32.c
@@ -102,7 +102,7 @@ typedef struct compat_siginfo{
/* POSIX.1b timers */
struct {
- timer_t _tid; /* timer id */
+ compat_timer_t _tid; /* timer id */
int _overrun; /* overrun count */
compat_sigval_t _sigval; /* same as below */
int _sys_private; /* not to be passed to user */
diff --git a/arch/sparc64/kernel/sparc64_ksyms.c b/arch/sparc64/kernel/sparc64_ksyms.c
index e78cc53594f..56cd96f4a5c 100644
--- a/arch/sparc64/kernel/sparc64_ksyms.c
+++ b/arch/sparc64/kernel/sparc64_ksyms.c
@@ -227,7 +227,6 @@ EXPORT_SYMBOL(__flush_dcache_range);
EXPORT_SYMBOL(mostek_lock);
EXPORT_SYMBOL(mstk48t02_regs);
-EXPORT_SYMBOL(request_fast_irq);
#ifdef CONFIG_SUN_AUXIO
EXPORT_SYMBOL(auxio_set_led);
EXPORT_SYMBOL(auxio_set_lte);
diff --git a/arch/sparc64/kernel/sys_sparc.c b/arch/sparc64/kernel/sys_sparc.c
index 0077f02f4b3..5f8c822a2b4 100644
--- a/arch/sparc64/kernel/sys_sparc.c
+++ b/arch/sparc64/kernel/sys_sparc.c
@@ -84,6 +84,10 @@ unsigned long arch_get_unmapped_area(struct file *filp, unsigned long addr, unsi
return addr;
}
+ if (len <= mm->cached_hole_size) {
+ mm->cached_hole_size = 0;
+ mm->free_area_cache = TASK_UNMAPPED_BASE;
+ }
start_addr = addr = mm->free_area_cache;
task_size -= len;
@@ -103,6 +107,7 @@ full_search:
if (task_size < addr) {
if (start_addr != TASK_UNMAPPED_BASE) {
start_addr = addr = TASK_UNMAPPED_BASE;
+ mm->cached_hole_size = 0;
goto full_search;
}
return -ENOMEM;
@@ -114,6 +119,9 @@ full_search:
mm->free_area_cache = addr + len;
return addr;
}
+ if (addr + mm->cached_hole_size < vma->vm_start)
+ mm->cached_hole_size = vma->vm_start - addr;
+
addr = vma->vm_end;
if (do_color_align)
addr = COLOUR_ALIGN(addr, pgoff);
diff --git a/arch/sparc64/kernel/trampoline.S b/arch/sparc64/kernel/trampoline.S
index 2c8f9344b4e..3a145fc39cf 100644
--- a/arch/sparc64/kernel/trampoline.S
+++ b/arch/sparc64/kernel/trampoline.S
@@ -98,8 +98,9 @@ startup_continue:
sethi %hi(prom_entry_lock), %g2
1: ldstub [%g2 + %lo(prom_entry_lock)], %g1
+ membar #StoreLoad | #StoreStore
brnz,pn %g1, 1b
- membar #StoreLoad | #StoreStore
+ nop
sethi %hi(p1275buf), %g2
or %g2, %lo(p1275buf), %g2
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-12-30 21:42:33 +0000