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authorDavid S. Miller <davem@davemloft.net>2006-01-31 18:32:29 -0800
committerDavid S. Miller <davem@sunset.davemloft.net>2006-03-20 01:11:20 -0800
commit96c6e0d8e2a0eb1338751598be47fa1ffed91704 (patch)
tree7174ae7f5c052b8312549860c3a978babc1394ce
parentb70c0fa1613c4f69b4a340a0e2bee387560ebbb1 (diff)
[SPARC64]: Kill {save,restore}_alternate_globals()
No longer needed now that we no longer have hard-coded alternate global register usage. Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r--arch/sparc64/kernel/entry.S70
-rw-r--r--arch/sparc64/kernel/smp.c7
2 files changed, 1 insertions, 76 deletions
diff --git a/arch/sparc64/kernel/entry.S b/arch/sparc64/kernel/entry.S
index 906b64ffdb1..ad919f4f4b3 100644
--- a/arch/sparc64/kernel/entry.S
+++ b/arch/sparc64/kernel/entry.S
@@ -401,76 +401,6 @@ do_ivec_xcall:
1: jmpl %g3, %g0
nop
- .globl save_alternate_globals
-save_alternate_globals: /* %o0 = save_area */
- rdpr %pstate, %o5
- andn %o5, PSTATE_IE, %o1
- wrpr %o1, PSTATE_AG, %pstate
- stx %g0, [%o0 + 0x00]
- stx %g1, [%o0 + 0x08]
- stx %g2, [%o0 + 0x10]
- stx %g3, [%o0 + 0x18]
- stx %g4, [%o0 + 0x20]
- stx %g5, [%o0 + 0x28]
- stx %g6, [%o0 + 0x30]
- stx %g7, [%o0 + 0x38]
- wrpr %o1, PSTATE_IG, %pstate
- stx %g0, [%o0 + 0x40]
- stx %g1, [%o0 + 0x48]
- stx %g2, [%o0 + 0x50]
- stx %g3, [%o0 + 0x58]
- stx %g4, [%o0 + 0x60]
- stx %g5, [%o0 + 0x68]
- stx %g6, [%o0 + 0x70]
- stx %g7, [%o0 + 0x78]
- wrpr %o1, PSTATE_MG, %pstate
- stx %g0, [%o0 + 0x80]
- stx %g1, [%o0 + 0x88]
- stx %g2, [%o0 + 0x90]
- stx %g3, [%o0 + 0x98]
- stx %g4, [%o0 + 0xa0]
- stx %g5, [%o0 + 0xa8]
- stx %g6, [%o0 + 0xb0]
- stx %g7, [%o0 + 0xb8]
- wrpr %o5, 0x0, %pstate
- retl
- nop
-
- .globl restore_alternate_globals
-restore_alternate_globals: /* %o0 = save_area */
- rdpr %pstate, %o5
- andn %o5, PSTATE_IE, %o1
- wrpr %o1, PSTATE_AG, %pstate
- ldx [%o0 + 0x00], %g0
- ldx [%o0 + 0x08], %g1
- ldx [%o0 + 0x10], %g2
- ldx [%o0 + 0x18], %g3
- ldx [%o0 + 0x20], %g4
- ldx [%o0 + 0x28], %g5
- ldx [%o0 + 0x30], %g6
- ldx [%o0 + 0x38], %g7
- wrpr %o1, PSTATE_IG, %pstate
- ldx [%o0 + 0x40], %g0
- ldx [%o0 + 0x48], %g1
- ldx [%o0 + 0x50], %g2
- ldx [%o0 + 0x58], %g3
- ldx [%o0 + 0x60], %g4
- ldx [%o0 + 0x68], %g5
- ldx [%o0 + 0x70], %g6
- ldx [%o0 + 0x78], %g7
- wrpr %o1, PSTATE_MG, %pstate
- ldx [%o0 + 0x80], %g0
- ldx [%o0 + 0x88], %g1
- ldx [%o0 + 0x90], %g2
- ldx [%o0 + 0x98], %g3
- ldx [%o0 + 0xa0], %g4
- ldx [%o0 + 0xa8], %g5
- ldx [%o0 + 0xb0], %g6
- ldx [%o0 + 0xb8], %g7
- wrpr %o5, 0x0, %pstate
- retl
- nop
-
.globl getcc, setcc
getcc:
ldx [%o0 + PT_V9_TSTATE], %o1
diff --git a/arch/sparc64/kernel/smp.c b/arch/sparc64/kernel/smp.c
index 3c14b549cf9..d030c311cfe 100644
--- a/arch/sparc64/kernel/smp.c
+++ b/arch/sparc64/kernel/smp.c
@@ -940,24 +940,19 @@ void smp_release(void)
* can service tlb flush xcalls...
*/
extern void prom_world(int);
-extern void save_alternate_globals(unsigned long *);
-extern void restore_alternate_globals(unsigned long *);
+
void smp_penguin_jailcell(int irq, struct pt_regs *regs)
{
- unsigned long global_save[24];
-
clear_softint(1 << irq);
preempt_disable();
__asm__ __volatile__("flushw");
- save_alternate_globals(global_save);
prom_world(1);
atomic_inc(&smp_capture_registry);
membar_storeload_storestore();
while (penguins_are_doing_time)
rmb();
- restore_alternate_globals(global_save);
atomic_dec(&smp_capture_registry);
prom_world(0);