Date: Wed, 4 Nov 2015 04:01:59 +0000 (UTC) From: Oleksandr Tymoshenko <gonzo@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r290349 - head/sys/arm/arm Message-ID: <201511040401.tA441xnN099773@repo.freebsd.org>
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Author: gonzo Date: Wed Nov 4 04:01:59 2015 New Revision: 290349 URL: https://svnweb.freebsd.org/changeset/base/290349 Log: Revert r290243, it's vaid "illegal instruction" case DEX bit is set to 1 and exception raised whenever vectorized operation is attempted on the VFP implementation that does not support it (i.e. on Cortex A7) Modified: head/sys/arm/arm/vfp.c Modified: head/sys/arm/arm/vfp.c ============================================================================== --- head/sys/arm/arm/vfp.c Wed Nov 4 01:00:42 2015 (r290348) +++ head/sys/arm/arm/vfp.c Wed Nov 4 04:01:59 2015 (r290349) @@ -179,12 +179,12 @@ vfp_bounce(u_int addr, u_int insn, struc fpexc = fmrx(fpexc); if (fpexc & VFPEXC_EN) { /* Clear any exceptions */ - fmxr(fpexc, fpexc & ~(VFPEXC_EX | VFPEXC_DEX | VFPEXC_FP2V)); + fmxr(fpexc, fpexc & ~(VFPEXC_EX | VFPEXC_FP2V)); /* kill the process - we do not handle emulation */ critical_exit(); - if (fpexc & (VFPEXC_EX | VFPEXC_DEX)) { + if (fpexc & VFPEXC_EX) { /* We have an exception, signal a SIGFPE */ ksiginfo_init_trap(&ksi); ksi.ksi_signo = SIGFPE;
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