From owner-freebsd-ppc@freebsd.org Wed Nov 16 00:18:38 2016 Return-Path: Delivered-To: freebsd-ppc@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id AAEF4C4436A for ; Wed, 16 Nov 2016 00:18:38 +0000 (UTC) (envelope-from markmi@dsl-only.net) Received: from asp.reflexion.net (outbound-mail-210-33.reflexion.net [208.70.210.33]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (Client did not present a certificate) by mx1.freebsd.org (Postfix) with ESMTPS id 6DA8119E3 for ; Wed, 16 Nov 2016 00:18:37 +0000 (UTC) (envelope-from markmi@dsl-only.net) Received: (qmail 3296 invoked from network); 16 Nov 2016 00:18:22 -0000 Received: from unknown (HELO rtc-sm-01.app.dca.reflexion.local) (10.81.150.1) by 0 (rfx-qmail) with SMTP; 16 Nov 2016 00:18:22 -0000 Received: by rtc-sm-01.app.dca.reflexion.local (Reflexion email security v8.10.2) with SMTP; Tue, 15 Nov 2016 19:18:21 -0500 (EST) Received: (qmail 12942 invoked from network); 16 Nov 2016 00:18:21 -0000 Received: from unknown (HELO iron2.pdx.net) (69.64.224.71) by 0 (rfx-qmail) with (AES256-SHA encrypted) SMTP; 16 Nov 2016 00:18:21 -0000 Received: from [192.168.1.106] (c-76-115-7-162.hsd1.or.comcast.net [76.115.7.162]) by iron2.pdx.net (Postfix) with ESMTPSA id B048DEC9022; Tue, 15 Nov 2016 16:18:35 -0800 (PST) Content-Type: text/plain; charset=us-ascii Mime-Version: 1.0 (Mac OS X Mail 10.1 \(3251\)) Subject: Re: svn commit: r306065 - in head/sys vs. PowerMacs: Nathan's trail patch included but inappropriate? [My hack vs. Apple G4's.] From: Mark Millard In-Reply-To: Date: Tue, 15 Nov 2016 16:18:35 -0800 Cc: Justin Hibbits , FreeBSD PowerPC ML Content-Transfer-Encoding: quoted-printable Message-Id: References: <917EFF5A-D054-4424-9D7D-4E4BEF6072EF@gmail.com> <4bb1046a-225d-66b2-7b00-067f0d6f6c60@gmail.com> <465041D5-C1A2-48F4-9CA7-DD03B094FAE4@dsl-only.net> <01cfa4e9-954f-3e86-c8d7-36ec8523dde0@freebsd.org> <5C253E59-265B-4F5F-A4C5-E4FB7EEBF084@gmail.com> <7E73DEEA-AA99-48CD-A441-5596A6F0D8E8@dsl-only.net> <5F29E512-A5F0-452F-B816-FA5907DF875A@dsl-only.net> To: Jukka Ukkonen X-Mailer: Apple Mail (2.3251) X-BeenThere: freebsd-ppc@freebsd.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Porting FreeBSD to the PowerPC List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 16 Nov 2016 00:18:38 -0000 On 2016-Nov-15, at 3:01 PM, Mark Millard wrote: > On 2016-Nov-15, at 1:42 PM, Mark Millard = wrote: >=20 >> [Top post of an experiment with loading iicsmb.ko from the loader = prompt.] >>=20 >> I stopped a PowerMac G5 "Quad Core" at the loader prompt (not >> using /boot/loader.conf or other such) and did a: >>=20 >> load iicsmb >> boot >>=20 >> (smbus.ko also loads --and so for my earlier "in kernel" suggestion >> "device smbus" should also be listed in the KERNCONF file.) >>=20 >> It booted fine. Afterwards kldstat reported: >>=20 >> # kldstat >> Id Refs Address Size Name >> 1 6 0x100000 16901b0 kernel >> 2 1 0x1792000 14598 iicsmb.ko >> 3 2 0x17a7000 13f80 smbus.ko >>=20 >> Those are not the addresses that were reported at the loader prompt = for >> iicsmb and smbus: >>=20 >> .text for iccsmb was listed as at 0x28e0 if I remember right >> .text for smbus was listed as at 0x2800 if I remember right >>=20 >> The .data for each were listed at the loader prompt as each starting = in >> the 0x6xxx range as I remember. >=20 > One too many x's: 0x6c8 and 0x600 were the figures. >=20 >> I'm not sure that what the loader prompt context listed was actually = the >> load addresses at that time. >>=20 >> I do not know if you get similar results or not. >>=20 >> If the loader prompt loads always work and the loader.conf loads do = not >> that might also be interesting evidence about the problem(s) = involved. >>=20 >> I do not know how to tell if iicsmb and smbus are working or not. >>=20 >> It may be that explicit loads from the loader prompt are another >> workaround. >>=20 >>=20 >> I have not yet tried: >>=20 >> unload >> load iccsmb >> boot >=20 > (typo above: iicsmb is what I loaded.) >=20 > That did not work: the kernel needs to be loaded first. . . >=20 > unload > load kernel > load iicsmb > boot >=20 > did work. The kldstat then ends up being: >=20 > # kldstat > Id Refs Address Size Name > 1 6 0x100000 16901b0 kernel > 2 1 0x1791000 14598 iicsmb.ko > 3 2 0x17a6000 13f80 smbus.ko >=20 > (Not much different --but not identical to before for 2 of the Address = values.) Based on: # more /boot/loader.conf #verbose_loading=3D"YES" kernel=3D"kernel" kern.vty=3Dvt dumpdev=3D"/dev/label/FBSDG5Lswap" smbus_load=3D"YES" iicsmb_load=3D"YES" I have no trouble booting the PowerMac G5 (with my version of the boot hack in place). (I do not use any hack for 32-bit powerpc.) # uname -apKU FreeBSD FBSDG5L 12.0-CURRENT FreeBSD 12.0-CURRENT #0 r308247M: Fri Nov = 4 03:18:34 PDT 2016 = markmi@FreeBSDx64:/usr/obj/powerpc64vtsc_xtoolchain/powerpc.powerpc64/usr/= src/sys/GENERIC64vtsc-NODBG powerpc powerpc64 1200014 1200014 Unfortunately we then hit my odd context from doing libc++ based builds for powerpc64, including self-hosted builds, and my experimenting with clang. I use devel/powerpc-xtoolchain-gcc (and so devel/powerpc64-gcc) to buildworld buildkernel for powerpc64, be it cross compiling from amd64 or on the powerpc64 itself (self hosted cross build). (A work around is required to get it installed on a powerpc64 FreeBSD.) I use a libc++ based build --something gcc 4.2.1 will not do. For self hosting on powerpc64 I use lang/gcc49 as the so-called "system compiler" and devel/powerpc64-gcc as the "cross" compiler for buildworld buildkernel . So my src.conf sort of content and related context is probably not like yours (showing for self-hosted below). I list several files with details of my buildworld buildkernel environment. (There are long lines likely implicitly wrapped in the below --in addition to \ end-of-line notation.) # more = ~/sys_build_scripts.powerpc64-host/make_powerpc64vtsc_nodebug_incl_clang_x= toolchain-powerpc64-host.sh=20 kldload -n filemon && \ script = ~/sys_typescripts/typescript_make_powerpc64vtsc_nodebug_incl_clang_xtoolch= ain-powerpc64-host-$(date +%Y-%m-%d:%H:%M:%S) \ env __MAKE_CONF=3D"/root/src.configs/make.conf" SRCCONF=3D"/dev/null" = SRC_ENV_CONF=3D"/root/src.configs/src.conf.powerpc64-xtoolchain.powerpc64-= host" \ WITH_META_MODE=3Dyes \ MAKEOBJDIRPREFIX=3D"/usr/obj/powerpc64vtsc_xtoolchain/powerpc.powerpc64" = \ make $* # more ~/src.configs/make.conf=20 CFLAGS.gcc+=3D -v # more ~/src.configs/src.conf.powerpc64-xtoolchain.powerpc64-host TO_TYPE=3Dpowerpc64 TOOLS_TO_TYPE=3D${TO_TYPE} FROM_TYPE=3D${TO_TYPE} TOOLS_FROM_TYPE=3D${FROM_TYPE} VERSION_CONTEXT=3D12.0 # KERNCONF=3DGENERIC64vtsc-NODBG TARGET=3Dpowerpc .if ${.MAKE.LEVEL} =3D=3D 0 TARGET_ARCH=3D${TO_TYPE} .export TARGET_ARCH .endif # WITHOUT_CROSS_COMPILER=3D WITHOUT_SYSTEM_COMPILER=3D # WITH_LIBCPLUSPLUS=3D WITHOUT_BINUTILS_BOOTSTRAP=3D WITHOUT_CLANG_BOOTSTRAP=3D WITH_CLANG=3D WITH_CLANG_IS_CC=3D WITH_CLANG_FULL=3D WITH_CLANG_EXTRAS=3D WITH_LLDB=3D # WITH_BOOT=3D # powerpc64 LIB32 builds via gcc 4.9 or later variants that I've tried # but the LIB32 does not work [crtbeginS code problem(s)] WITHOUT_LIB32=3D # WITHOUT_ELFTOOLCHAIN_BOOTSTRAP=3D WITHOUT_GCC_BOOTSTRAP=3D WITHOUT_GCC=3D WITHOUT_GCC_IS_CC=3D WITHOUT_GNUCXX=3D # NO_WERROR=3D #WERROR=3D MALLOC_PRODUCTION=3D # WITH_DEBUG_FILES=3D # # # For TO (so-called "cross") stages . . . # So-called-cross via ${TO_TYPE}-xtoolchain-gcc/${TO_TYPE}-gcc. . . # TOOLS_TO_TYPE based on ${TO_TYPE}-xtoolchain-gcc related binutils. . . # CROSS_TOOLCHAIN=3D${TO_TYPE}-gcc X_COMPILER_TYPE=3Dgcc CROSS_BINUTILS_PREFIX=3D/usr/local/${TOOLS_TO_TYPE}-freebsd/bin/ .if ${.MAKE.LEVEL} =3D=3D 0 = XCC=3D/usr/local/bin/${TOOLS_TO_TYPE}-portbld-freebsd${VERSION_CONTEXT}-gc= c = XCXX=3D/usr/local/bin/${TOOLS_TO_TYPE}-portbld-freebsd${VERSION_CONTEXT}-g= ++ = XCPP=3D/usr/local/bin/${TOOLS_TO_TYPE}-portbld-freebsd${VERSION_CONTEXT}-c= pp .export XCC .export XCXX .export XCPP XAS=3D/usr/local/${TOOLS_TO_TYPE}-freebsd/bin/as XAR=3D/usr/local/${TOOLS_TO_TYPE}-freebsd/bin/ar XLD=3D/usr/local/${TOOLS_TO_TYPE}-freebsd/bin/ld XNM=3D/usr/local/${TOOLS_TO_TYPE}-freebsd/bin/nm XOBJCOPY=3D/usr/local/${TOOLS_TO_TYPE}-freebsd/bin/objcopy XOBJDUMP=3D/usr/local/${TOOLS_TO_TYPE}-freebsd/bin/objdump XRANLIB=3D/usr/local/${TOOLS_TO_TYPE}-freebsd/bin/ranlib XSIZE=3D/usr/local/${TOOLS_TO_TYPE}-freebsd/bin/size #NO-SUCH: XSTRINGS=3D/usr/local/${TOOLS_TO_TYPE}-freebsd/bin/strings XSTRINGS=3D/usr/local/bin/${TOOLS_TO_TYPE}-freebsd-strings .export XAS .export XAR .export XLD .export XNM .export XOBJCOPY .export XOBJDUMP .export XRANLIB .export XSIZE .export XSTRINGS .endif # # # For FROM (host) stages . . . # =46rom gccXY (such as gcc49 but not xtoolchain) # TOOLS_FROM_TYPE's appropriate binutils. . . # .if ${.MAKE.LEVEL} =3D=3D 0 CC=3Denv C_INCLUDE_PATH=3D/usr/include /usr/local/bin/gcc49 -L/usr/lib CXX=3Denv C_INCLUDE_PATH=3D/usr/include = CPLUS_INCLUDE_PATH=3D/usr/include/c++/v1 /usr/local/bin/g++49 -std=3Dc++11= -nostdinc++ -L/usr/lib CPP=3D/usr/local/bin/cpp49 .export CC .export CXX .export CPP = AS=3D/usr/local/${TOOLS_FROM_TYPE}-portbld-freebsd${VERSION_CONTEXT}/bin/a= s = AR=3D/usr/local/${TOOLS_FROM_TYPE}-portbld-freebsd${VERSION_CONTEXT}/bin/a= r = LD=3D/usr/local/${TOOLS_FROM_TYPE}-portbld-freebsd${VERSION_CONTEXT}/bin/l= d = NM=3D/usr/local/${TOOLS_FROM_TYPE}-portbld-freebsd${VERSION_CONTEXT}/bin/n= m = OBJCOPY=3D/usr/local/${TOOLS_FROM_TYPE}-portbld-freebsd${VERSION_CONTEXT}/= bin/objcopy = OBJDUMP=3D/usr/local/${TOOLS_FROM_TYPE}-portbld-freebsd${VERSION_CONTEXT}/= bin/objdump = RANLIB=3D/usr/local/${TOOLS_FROM_TYPE}-portbld-freebsd${VERSION_CONTEXT}/b= in/ranlib = SIZE=3D/usr/local/${TOOLS_FROM_TYPE}-portbld-freebsd${VERSION_CONTEXT}/bin= /size #NO-SUCH: = STRINGS=3D/usr/local/${TOOLS_FROM_TYPE}-portbld-freebsd${VERSION_CONTEXT}/= bin/strings STRINGS=3D/usr/local/bin/strings .export AS .export AR .export LD .export NM .export OBJCOPY .export OBJDUMP .export RANLIB .export SIZE .export STRINGS .endif # more /usr/src/sys/powerpc/conf/GENERIC64vtsc-NODBG=20 # # GENERIC -- Custom configuration for the powerpc/powerpc64 # include "GENERIC64" ident GENERIC64vtsc-NODGB makeoptions DEBUG=3D-g # Build kernel with gdb(1) = debug symbols nooptions PS3 # Sony Playstation 3 = HACK!!! to allow sc options KDB # Enable kernel debugger support # For minimum debugger support (stable branch) use: options KDB_TRACE # Print a stack trace for a = panic options DDB # Enable the kernel debugger options GDB # HACK!!! ... # Extra stuff: #options VERBOSE_SYSINIT # Enable verbose sysinit = messages #options BOOTVERBOSE=3D1 #options BOOTHOWTO=3DRB_VERBOSE #options KTR #options KTR_MASK=3DKTR_TRAP ##options KTR_CPUMASK=3D0xF #options KTR_VERBOSE # HACK!!! to allow sc for 2560x1440 display on Radeon X1950 that vt = historically mishandled during booting device sc #device kbdmux # HACK: already listed by vt options SC_OFWFB # OFW frame buffer options SC_DFLT_FONT # compile font in makeoptions SC_DFLT_FONT=3Dcp437 # Disable any extra checking for. . . nooptions DEADLKRES # Enable the deadlock resolver nooptions INVARIANTS # Enable calls of extra sanity = checking nooptions INVARIANT_SUPPORT # Extra sanity checks of = internal structures, required by INVARIANTS nooptions WITNESS # Enable checks to detect = deadlocks and cycles nooptions WITNESS_SKIPSPIN # Don't run witness on spinlocks = for speed nooptions DIAGNOSTIC nooptions MALLOC_DEBUG_MAXZONES # Separate malloc(9) zones # svnlite diff /usr/src/sys/powerpc/ofw/ofw_machdep.c=20 Index: /usr/src/sys/powerpc/ofw/ofw_machdep.c =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D --- /usr/src/sys/powerpc/ofw/ofw_machdep.c (revision 308247) +++ /usr/src/sys/powerpc/ofw/ofw_machdep.c (working copy) @@ -111,6 +111,24 @@ * Assume that interrupt are disabled at this point, or * SPRG1-3 could be trashed */ +#if defined(AIM) && defined(__powerpc64__) +/* HACK: PowerMac G5 specific code to avoid demonstrated hangs in + * the early boot time frame: avoid mtsprg0 use. + * This would need a live test for PowerMac vs. not in order + * to remove HACK status --but without calling into + * OpenFirmware or the problem would be recreated. + */ + if (1) + __asm __volatile("mfsprg0 %0\n\t" + "mtsprg1 %1\n\t" + "mtsprg2 %2\n\t" + "mtsprg3 %3\n\t" + : "=3D&r"(ofw_sprg0_save) + : "r"(ofmsr[2]), + "r"(ofmsr[3]), + "r"(ofmsr[4])); + else +#endif __asm __volatile("mfsprg0 %0\n\t" "mtsprg0 %1\n\t" "mtsprg1 %2\n\t" You have not sent out such materials for anyone to look at so I've no clue what all the differences might be in what you have. =3D=3D=3D Mark Millard markmi at dsl-only.net