Author: andrew Date: Tue Jan 15 09:48:18 2019 New Revision: 343042 URL: https://svnweb.freebsd.org/changeset/base/343042
Log: Ensure the I-Cache is correctly handled in arm64_icache_sync_range The cache_handle_range macro to handle the arm64 instruction and data cache operations would return when it was complete. This causes problems for arm64_icache_sync_range and arm64_icache_sync_range_checked as they assume they can execute the i-cache handling instruction after it has been called. Fix this by making this assumption correct. While here add missing instruction barriers and adjust the style to match the rest of the assembly. Sponsored by: DARPA, AFRL Differential Revision: https://reviews.freebsd.org/D18838 Modified: head/sys/arm64/arm64/cpufunc_asm.S Modified: head/sys/arm64/arm64/cpufunc_asm.S ============================================================================== --- head/sys/arm64/arm64/cpufunc_asm.S Tue Jan 15 08:59:51 2019 (r343041) +++ head/sys/arm64/arm64/cpufunc_asm.S Tue Jan 15 09:48:18 2019 (r343042) @@ -77,7 +77,6 @@ __FBSDID("$FreeBSD$"); .if \ic != 0 isb .endif - ret .endm ENTRY(arm64_nullop) @@ -112,6 +111,7 @@ END(arm64_tlb_flushID) */ ENTRY(arm64_dcache_wb_range) cache_handle_range dcop = cvac + ret END(arm64_dcache_wb_range) /* @@ -119,6 +119,7 @@ END(arm64_dcache_wb_range) */ ENTRY(arm64_dcache_wbinv_range) cache_handle_range dcop = civac + ret END(arm64_dcache_wbinv_range) /* @@ -129,6 +130,7 @@ END(arm64_dcache_wbinv_range) */ ENTRY(arm64_dcache_inv_range) cache_handle_range dcop = ivac + ret END(arm64_dcache_inv_range) /* @@ -136,6 +138,7 @@ END(arm64_dcache_inv_range) */ ENTRY(arm64_idcache_wbinv_range) cache_handle_range dcop = civac, ic = 1, icop = ivau + ret END(arm64_idcache_wbinv_range) /* @@ -150,6 +153,8 @@ ENTRY(arm64_icache_sync_range) cache_handle_range dcop = cvau ic ialluis dsb ish + isb + ret END(arm64_icache_sync_range) /* @@ -161,7 +166,8 @@ ENTRY(arm64_icache_sync_range_checked) /* XXX: See comment in arm64_icache_sync_range */ cache_handle_range dcop = cvau ic ialluis - dsb ish + dsb ish + isb SET_FAULT_HANDLER(xzr, x6) mov x0, #0 ret _______________________________________________ svn-src-all@freebsd.org mailing list https://lists.freebsd.org/mailman/listinfo/svn-src-all To unsubscribe, send any mail to "svn-src-all-unsubscr...@freebsd.org"
