Date: Tue, 19 Nov 2019 01:28:06 +0000 (UTC) From: Justin Hibbits <jhibbits@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r354838 - head/sys/powerpc/booke Message-ID: <201911190128.xAJ1S6A6092646@repo.freebsd.org>
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Author: jhibbits Date: Tue Nov 19 01:28:06 2019 New Revision: 354838 URL: https://svnweb.freebsd.org/changeset/base/354838 Log: powerpc/booke pmap: Use the right 'tlbilx' form to invalidate TIDs 'tlbilxpid' is 'tlbilx 1, 0', while the existing form is 'tlbilx 0, 0', which translates to 'tlbilxlpid', invalidating a LDPID. This effectively invalidates the entire TLB, causing unnecessary reloads. Modified: head/sys/powerpc/booke/pmap.c Modified: head/sys/powerpc/booke/pmap.c ============================================================================== --- head/sys/powerpc/booke/pmap.c Tue Nov 19 00:02:56 2019 (r354837) +++ head/sys/powerpc/booke/pmap.c Tue Nov 19 01:28:06 2019 (r354838) @@ -4254,7 +4254,7 @@ tid_flush(tlbtid_t tid) case FSL_E6500: mtspr(SPR_MAS6, tid << MAS6_SPID0_SHIFT); /* tlbilxpid */ - __asm __volatile("isync; .long 0x7c000024; isync; msync"); + __asm __volatile("isync; .long 0x7c200024; isync; msync"); __asm __volatile("wrtee %0" :: "r"(msr)); return; }
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