Date: Wed, 1 Feb 2012 21:24:06 +0000 (UTC) From: Marius Strobl <marius@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-stable@freebsd.org, svn-src-stable-8@freebsd.org Subject: svn commit: r230893 - stable/8/sys/sparc64/sparc64 Message-ID: <201202012124.q11LO6FG005860@svn.freebsd.org>
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Author: marius Date: Wed Feb 1 21:24:06 2012 New Revision: 230893 URL: http://svn.freebsd.org/changeset/base/230893 Log: MFC: r230662 Fully disable interrupts while we fiddle with the FP context in the VIS-based block copy/zero implementations. While with 4BSD it's sufficient to just disable the tick interrupts, with ULE+PREEMPTION it's otherwise also possible that these are preempted via IPIs. Modified: stable/8/sys/sparc64/sparc64/support.S Directory Properties: stable/8/sys/ (props changed) stable/8/sys/amd64/include/xen/ (props changed) stable/8/sys/cddl/contrib/opensolaris/ (props changed) stable/8/sys/contrib/dev/acpica/ (props changed) stable/8/sys/contrib/pf/ (props changed) stable/8/sys/dev/e1000/ (props changed) Modified: stable/8/sys/sparc64/sparc64/support.S ============================================================================== --- stable/8/sys/sparc64/sparc64/support.S Wed Feb 1 21:24:03 2012 (r230892) +++ stable/8/sys/sparc64/sparc64/support.S Wed Feb 1 21:24:06 2012 (r230893) @@ -580,8 +580,8 @@ fpu_fault_begin: * void spitfire_block_copy(void *src, void *dst, size_t len) */ ENTRY(spitfire_block_copy) - rdpr %pil, %o3 - wrpr %g0, PIL_TICK, %pil + rdpr %pstate, %o3 + wrpr %g0, PSTATE_NORMAL, %pstate wr %g0, ASI_BLK_S, %asi wr %g0, FPRS_FEF, %fprs @@ -603,7 +603,7 @@ ENTRY(spitfire_block_copy) or %o4, PCB_FEF, %o4 stx %o4, [PCB_REG + PCB_FLAGS] -1: wrpr %o3, 0, %pil +1: wrpr %o3, 0, %pstate ldda [%o0] %asi, %f0 add %o0, 64, %o0 @@ -653,8 +653,8 @@ END(spitfire_block_copy) ENTRY(zeus_block_copy) prefetch [%o0 + (0 * 64)], 0 - rdpr %pil, %o3 - wrpr %g0, PIL_TICK, %pil + rdpr %pstate, %o3 + wrpr %g0, PSTATE_NORMAL, %pstate wr %g0, ASI_BLK_S, %asi wr %g0, FPRS_FEF, %fprs @@ -676,7 +676,7 @@ ENTRY(zeus_block_copy) or %o4, PCB_FEF, %o4 stx %o4, [PCB_REG + PCB_FLAGS] -1: wrpr %o3, 0, %pil +1: wrpr %o3, 0, %pstate ldd [%o0 + (0 * 8)], %f0 prefetch [%o0 + (1 * 64)], 0 @@ -764,8 +764,8 @@ END(zeus_block_copy) */ ALTENTRY(zeus_block_zero) ENTRY(spitfire_block_zero) - rdpr %pil, %o3 - wrpr %g0, PIL_TICK, %pil + rdpr %pstate, %o3 + wrpr %g0, PSTATE_NORMAL, %pstate wr %g0, ASI_BLK_S, %asi wr %g0, FPRS_FEF, %fprs @@ -787,7 +787,7 @@ ENTRY(spitfire_block_zero) or %o4, PCB_FEF, %o4 stx %o4, [PCB_REG + PCB_FLAGS] -1: wrpr %o3, 0, %pil +1: wrpr %o3, 0, %pstate fzero %f0 fzero %f2
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