Author: zbb Date: Tue Apr 18 10:34:10 2017 New Revision: 317087 URL: https://svnweb.freebsd.org/changeset/base/317087
Log: Execute PL310_ERRATA_727915 only for related revisions Part of PL310 erratum 727915 in pl310_wbinv_range() was executed uncoditionally for all possible controllers' revisions. This patch adds appropriate condition, since extra operations are required only for revisions between r2p0 and r3p0. Submitted by: Marcin Wojtas <m...@semihalf.com> Obtained from: Semihalf Sponsored by: Stormshield Reviewed by: meloun-miracle-cz Differential revision: https://reviews.freebsd.org/D10221 Modified: head/sys/arm/arm/pl310.c Modified: head/sys/arm/arm/pl310.c ============================================================================== --- head/sys/arm/arm/pl310.c Tue Apr 18 10:32:21 2017 (r317086) +++ head/sys/arm/arm/pl310.c Tue Apr 18 10:34:10 2017 (r317087) @@ -272,7 +272,9 @@ pl310_wbinv_range(vm_paddr_t start, vm_s #ifdef PL310_ERRATA_727915 - platform_pl310_write_debug(pl310_softc, 3); + if (pl310_softc->sc_rtl_revision >= CACHE_ID_RELEASE_r2p0 && + pl310_softc->sc_rtl_revision < CACHE_ID_RELEASE_r3p1) + platform_pl310_write_debug(pl310_softc, 3); #endif while (size > 0) { #ifdef PL310_ERRATA_588369 @@ -293,7 +295,9 @@ pl310_wbinv_range(vm_paddr_t start, vm_s size -= g_l2cache_line_size; } #ifdef PL310_ERRATA_727915 - platform_pl310_write_debug(pl310_softc, 0); + if (pl310_softc->sc_rtl_revision >= CACHE_ID_RELEASE_r2p0 && + pl310_softc->sc_rtl_revision < CACHE_ID_RELEASE_r3p1) + platform_pl310_write_debug(pl310_softc, 0); #endif pl310_cache_sync(); _______________________________________________ svn-src-head@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-head To unsubscribe, send any mail to "svn-src-head-unsubscr...@freebsd.org"
