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Blackfin: inline I-pipe bypass code in ret_from_exception

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Signed-off-by: Philippe Gerum <rpm@xenomai.org>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
This commit is contained in:
Philippe Gerum
2009-06-22 18:26:22 +02:00
committed by Mike Frysinger
parent 9ea7770fdb
commit f4e129399c
2 changed files with 7 additions and 12 deletions
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5
arch/blackfin/kernel/ipipe.c
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@@ -164,11 +164,6 @@ out:
__clear_bit(IPIPE_STALL_FLAG, &p->status); __clear_bit(IPIPE_STALL_FLAG, &p->status);
} }
int __ipipe_check_root(void)
{
return ipipe_root_domain_p;
}
void __ipipe_enable_irqdesc(struct ipipe_domain *ipd, unsigned irq) void __ipipe_enable_irqdesc(struct ipipe_domain *ipd, unsigned irq)
{ {
struct irq_desc *desc = irq_to_desc(irq); struct irq_desc *desc = irq_to_desc(irq);

14
arch/blackfin/mach-common/entry.S
View File

@@ -840,13 +840,13 @@ ENDPROC(_resume)
ENTRY(_ret_from_exception) ENTRY(_ret_from_exception)
#ifdef CONFIG_IPIPE #ifdef CONFIG_IPIPE
[--sp] = rets; p2.l = _per_cpu__ipipe_percpu_domain;
SP += -12; p2.h = _per_cpu__ipipe_percpu_domain;
call ___ipipe_check_root r0.l = _ipipe_root;
SP += 12 r0.h = _ipipe_root;
rets = [sp++]; r2 = [p2];
cc = r0 == 0; cc = r0 == r2;
if cc jump 4f; /* not on behalf of Linux, get out */ if !cc jump 4f; /* not on behalf of the root domain, get out */
#endif /* CONFIG_IPIPE */ #endif /* CONFIG_IPIPE */
p2.l = lo(IPEND); p2.l = lo(IPEND);
p2.h = hi(IPEND); p2.h = hi(IPEND);