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Code Issues Releases Activity

- Rename the IPI_WAIT macro to IPI_DONE.

Browse Source 
- Don't require all receivers of ipis to wait for all other receivers,
  only that the sender wait for all receivers.  This should reduce the
  amount of time spent with interrupts disabled, which may be a cause
  of ipi timeouts.

Discussed with:	tmm
This commit is contained in:
Jake Burkholder 2003-06-19 05:27:04 +00:00
parent ded0e52363
commit f96c24256c
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=116567
1 changed files with 8 additions and 11 deletions
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19
sys/sparc64/sparc64/mp_exception.S
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@ -37,12 +37,9 @@ __FBSDID("$FreeBSD$");
.register %g2, #ignore
.register %g3, #ignore
#define IPI_WAIT(r1, r2, r3, r4) \
#define IPI_DONE(r1, r2, r3, r4) \
lduw [PCPU(CPUMASK)], r4 ; \
ATOMIC_CLEAR_INT(r1, r2, r3, r4) ; \
9: lduw [r1], r2 ; \
brnz,a,pn r2, 9b ; \
nop
ATOMIC_CLEAR_INT(r1, r2, r3, r4)
/*
* Invalidate a physical page in the data cache. For UltraSPARC I and II.
@ -80,7 +77,7 @@ ENTRY(tl_ipi_spitfire_dcache_page_inval)
2: brgz,pt %g2, 1b
sub %g2, %g4, %g2
IPI_WAIT(%g5, %g1, %g2, %g3)
IPI_DONE(%g5, %g1, %g2, %g3)
retry
END(tl_ipi_spitfire_dcache_page_inval)
@ -121,7 +118,7 @@ ENTRY(tl_ipi_spitfire_icache_page_inval)
2: brgz,pt %g2, 1b
sub %g2, %g4, %g2
IPI_WAIT(%g5, %g1, %g2, %g3)
IPI_DONE(%g5, %g1, %g2, %g3)
retry
END(tl_ipi_spitfire_icache_page_inval)
@ -153,7 +150,7 @@ ENTRY(tl_ipi_cheetah_dcache_page_inval)
blt,a,pt %xcc, 1b
nop
IPI_WAIT(%g5, %g1, %g2, %g3)
IPI_DONE(%g5, %g1, %g2, %g3)
retry
END(tl_ipi_cheetah_dcache_page_inval)
@ -208,7 +205,7 @@ ENTRY(tl_ipi_tlb_page_demap)
stxa %g0, [%g2] ASI_IMMU_DEMAP
membar #Sync
IPI_WAIT(%g5, %g1, %g2, %g3)
IPI_DONE(%g5, %g1, %g2, %g3)
retry
END(tl_ipi_tlb_page_demap)
@ -251,7 +248,7 @@ ENTRY(tl_ipi_tlb_range_demap)
blt,a,pt %xcc, 1b
nop
IPI_WAIT(%g5, %g1, %g2, %g3)
IPI_DONE(%g5, %g1, %g2, %g3)
retry
END(tl_ipi_tlb_range_demap)
@ -274,6 +271,6 @@ ENTRY(tl_ipi_tlb_context_demap)
stxa %g0, [%g1] ASI_IMMU_DEMAP
membar #Sync
IPI_WAIT(%g5, %g1, %g2, %g3)
IPI_DONE(%g5, %g1, %g2, %g3)
retry
END(tl_ipi_tlb_context_demap)