Update mips-sources to 2.6.27.4. Tested on IP27, IP28, IP30, & IP32, but not on IP22 or cobalt systems.

(Portage version: 2.2_rc12/cvs/Linux 2.6.27.4-mipsgit-20081028 mips64)

2 files changed, 517 insertions, 1 deletions

diff --git a/sys-kernel/mips-sources/ChangeLog b/sys-kernel/mips-sources/ChangeLog
index 8161f0de0f30..6d07c3707418 100644
--- a/sys-kernel/mips-sources/ChangeLog
+++ b/sys-kernel/mips-sources/ChangeLog
@@ -1,6 +1,13 @@
 # ChangeLog for sys-kernel/mips-sources
 # Copyright 2002-2008 Gentoo Foundation; Distributed under the GPL v2
-# $Header: /var/cvsroot/gentoo-x86/sys-kernel/mips-sources/ChangeLog,v 1.116 2008/08/22 20:03:07 cardoe Exp $
+# $Header: /var/cvsroot/gentoo-x86/sys-kernel/mips-sources/ChangeLog,v 1.117 2008/10/30 07:53:10 kumba Exp $
+
+*mips-sources-2.6.27.4 (30 Oct 2008)
+
+  30 Oct 2008; Joshua Kinard <kumba@gentoo.org>
+  +mips-sources-2.6.27.4.ebuild:
+  Update mips-sources to 2.6.27.4. Tested on IP27, IP28, IP30, & IP32, but
+  not on IP22 or cobalt systems.
 
   22 Aug 2008; Doug Goldstein <cardoe@gentoo.org> metadata.xml:
   add GLEP 56 USE flag desc from use.local.desc
diff --git a/sys-kernel/mips-sources/mips-sources-2.6.27.4.ebuild b/sys-kernel/mips-sources/mips-sources-2.6.27.4.ebuild
new file mode 100644
index 000000000000..3782e12bb719
--- /dev/null
+++ b/sys-kernel/mips-sources/mips-sources-2.6.27.4.ebuild
@@ -0,0 +1,509 @@
+# Copyright 1999-2008 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/sys-kernel/mips-sources/mips-sources-2.6.27.4.ebuild,v 1.1 2008/10/30 07:53:10 kumba Exp $
+
+
+# INCLUDED:
+# 1) linux sources from kernel.org
+# 2) linux-mips.org GIT snapshot diff from 28 Oct 2008
+# 3) Generic Fixes
+# 4) Patch for the IOC3 Metadriver (IP27, IP30)
+# 5) Patch for IP30 Support
+# 6) Patch for IP28 Graphics Support (SolidImpact)
+# 7) Experimental patches (if needed)
+
+
+#//------------------------------------------------------------------------------
+
+
+
+# Version Data
+OKV=${PV/_/-}
+GITDATE="20081028"			# Date of diff between kernel.org and lmo GIT
+GENPATCHVER="1.33"			# Tarball version for generic patches
+EXTRAVERSION="-mipsgit-${GITDATE}"
+KV="${OKV}${EXTRAVERSION}"
+F_KV="${OKV}"				# Fetch KV, used to know what mipsgit diff to grab.
+STABLEVER="${F_KV}"			# Stable Version (2.6.x)
+PATCHVER=""
+
+# Directories
+S="${WORKDIR}/linux-${OKV}-${GITDATE}"
+MIPS_PATCHES="${WORKDIR}/mips-patches"
+
+# Inherit Eclasses
+ETYPE="sources"
+inherit kernel eutils versionator
+
+# Portage Vars
+HOMEPAGE="http://www.linux-mips.org/ http://www.gentoo.org/"
+SLOT="${OKV}"
+PROVIDE="virtual/linux-sources virtual/alsa"
+KEYWORDS="-* ~mips"
+IUSE="cobalt ip27 ip28 ip30 ip32r10k"
+DEPEND=">=sys-devel/gcc-4.1.1"
+
+
+# Version Control Variables
+USE_RC="no"				# If set to "yes", then attempt to use an RC kernel
+USE_PNT="yes"				# If set to "yes", then attempt to use a point-release (2.6.x.y)
+
+# Machine Support Control Variables
+DO_IP22="test"				# If "yes", enable IP22 support		(SGI Indy, Indigo2 R4x00)
+DO_IP27="yes"				# 		   IP27 support		(SGI Origin)
+DO_IP28="yes"				# 		   IP28 support		(SGI Indigo2 Impact R10000)
+DO_IP30="yes"				# 		   IP30 support		(SGI Octane)
+DO_IP32="yes"				# 		   IP32 support		(SGI O2, R5000/RM5200 Only)
+DO_CBLT="test"				# 		   Cobalt Support	(Cobalt Microsystems)
+
+# Machine Stable Version Variables
+SV_IP22=""				# If set && DO_IP22 == "no", indicates last "good" IP22 version
+SV_IP27=""				# 	    DO_IP27 == "no", 			   IP27
+SV_IP28=""				# 	    DO_IP28 == "no", 			   IP28
+SV_IP30=""				# 	    DO_IP30 == "no", 			   IP30
+SV_IP32=""				# 	    DO_IP32 == "no", 			   IP32
+SV_CBLT=""				# 	    DO_CBLT == "no", 			   Cobalt
+
+
+# If USE_RC == "yes", use a release candidate kernel (2.6.X-rcY)
+if [ "${USE_RC}" = "yes" ]; then
+	KVXY="$(get_version_component_range 1-2)"			# Kernel Major/Minor
+	KVZ="$(get_version_component_range 3)"				# Kernel Revision Pt. 1
+	KVRC="$(get_version_component_range 4)"				# Kernel RC
+	F_KV="$(get_version_component_range 1-3)-${KVRC}"
+	STABLEVER="${KVXY}.$((${KVZ} - 1))"				# Last stable version (Rev - 1)
+	PATCHVER="mirror://kernel/linux/kernel/v2.6/testing/patch-${OKV}.bz2"
+	EXTRAVERSION="-${KVRC}-mipsgit-${GITDATE}"
+	KV="${OKV}-${EXTRAVERSION}"
+	USE_PNT="no"
+fi
+
+# If USE_PNT == "yes", use a point release kernel (2.6.x.y)
+if [ "${USE_PNT}" = "yes" ]; then
+	F_KV="$(get_version_component_range 1-3)"			# Get Maj/Min/Rev (x.y.z)
+	STABLEVER="${F_KV}"						# Last Revision release
+	PATCHVER="mirror://kernel/linux/kernel/v2.6/patch-${OKV}.bz2"	# Patch for new point release
+	EXTRAVERSION=".$(get_version_component_range 4)-mipsgit-${GITDATE}"
+	KV="${OKV}${EXTRAVERSION}"
+	USE_RC="no"
+fi
+
+
+DESCRIPTION="Linux-Mips GIT sources for MIPS-based machines, dated ${GITDATE}"
+SRC_URI="mirror://kernel/linux/kernel/v2.6/linux-${STABLEVER}.tar.bz2
+		mirror://gentoo/mipsgit-${F_KV}-${GITDATE}.diff.bz2
+		mirror://gentoo/${PN}-generic_patches-${GENPATCHVER}.tar.bz2
+		${PATCHVER}"
+
+
+
+#//------------------------------------------------------------------------------
+
+
+
+# Error/Warning messages
+err_only_one_mach_allowed() {
+	echo -e ""
+	eerror "A patchset for a specific machine-type has already been selected."
+	eerror "No other patches for machines-types are permitted.  You will need a"
+	eerror "separate copy of the kernel sources for each different machine-type"
+	eerror "you want to build a kernel for."
+	die "Only one machine-type patchset allowed"
+}
+
+err_disabled_mach() {
+	# Get args
+	local mach_name="${1}"
+	local mach_abbr="${2}"
+	local mach_use="${3}"
+	local need_test="${4}"
+
+	# Get stable version, if exists
+	local stable_ver="SV_${mach_abbr}"
+	stable_ver="${!stable_ver}"
+
+	# See if this machine needs a USE passed or skip dying
+	local has_use
+	[ ! -z "${mach_use}" -a "${mach_use}" != "skip" ] && has_use="USE=\"${mach_use}\" "
+
+	# Print error && (maybe) die
+	echo -e ""
+	if [ "${need_test}" != "test" ]; then
+		eerror "${mach_name} Support has been disabled in this ebuild"
+		eerror "revision.  If you wish to merge ${mach_name} sources, then"
+		eerror "run ${has_use}emerge =mips-sources-${stable_ver}"
+		[ "${mach_use}" != "skip" ] && die "${mach_name} Support disabled."
+	else
+		ewarn "${mach_name} Support has been marked as needing testing in this"
+		ewarn "ebuild revision.  This usually means that any patches to support"
+		ewarn "${mach_name} have been forward ported and maybe even compile-tested,"
+		ewarn "but not yet booted on real hardware, possibly due to a lack of access"
+		ewarn "to such hardware.  If you happen to boot this kernel and have no"
+		ewarn "problems at all, then please inform the maintainer.  Otherwise, if"
+		ewarn "experience a bug, an oops/panic, or some other oddity, then please"
+		ewarn "file a bug at bugs.gentoo.org, and assign it to the mips team."
+	fi
+
+	return 0
+}
+
+
+
+#//------------------------------------------------------------------------------
+
+
+
+# Machine Information Messages
+#
+# If needing to whitespace for formatting in 'einfo', 'ewarn', or 'eerror', use
+# \040 for a space instead of the standard space.  These functions strip redundant
+# white space for some unknown reason
+
+show_ip22_info() {
+	echo -e ""
+	einfo "IP22 systems with an R5000 processor should work well with this release."
+	einfo "The R4x00 series of processors tend to be rather flaky, especially the"
+	einfo "R4600.  If you have to run an R4x00 processor, then try to use an R4400."
+	einfo ""
+	einfo "Some Notes:"
+	einfo "\t- Supported graphics card right now is Newport (XL)."
+	einfo "\t- A driver for Extreme (XZ) supposedly exists, but its author"
+	einfo "\t\040\040has steadfastly refused to release the code for various reasons."
+	einfo "\t\040\040Any questions regarding its status should be directed to "onion" in"
+	einfo "\t\040\040#mipslinux on the Freenode IRC network.  Given he is the author, he"
+	einfo "\t\040\040will know the most current status of the driver."
+	echo -e ""
+}
+
+show_ip27_info() {
+	echo -e ""
+	ewarn "IP27 support can be considered a game of Russian Roulette.  It'll work"
+	ewarn "great for some but not for others.  We don't get a chance to test this"
+	ewarn "machine very often with each new kernel, so your mileage may vary."
+	echo -e ""
+}
+
+show_ip28_info() {
+	echo -e ""
+	einfo "Support for the Indigo2 Impact R10000 is now in the mainline kernel.  However,"
+	einfo "due to the R10000 Speculative Execution issue that exists with this machine,"
+	einfo "nothing is guaranteed to work correctly.  Consider enabling ${HILITE}CONFIG_KALLSYMS${NORMAL}"
+	einfo "in your kernel so that if the machine Oopes, you'll be able to provide valuable"
+	einfo "feedback that can be used to trace down the crash."
+	echo -e ""
+}
+
+show_ip30_info() {
+	echo -e ""
+	einfo "Things to keep in mind when building a kernel for an SGI Octane:"
+	einfo "\t- Impact (MGRAS) console and X driver work, please report any bugs."
+	einfo "\t- VPro (Odyssey) console works, but no X driver exists yet."
+	einfo "\t- PCI Card Cages should work for many devices, except certain types like"
+	einfo "\t\040\040PCI-to-PCI bridges (USB hubs, USB flash card readers for example)."
+	einfo "\t- Do not use OHCI-based USB cards in Octane.  They're broke on this machine."
+	einfo "\t\040\040Patches are welcome to fix the issue."
+	einfo "\t- Equally, UHCI Cards are showing issues in this release, but should still"
+	einfo "\t\040\040function somewhat.  This issue manifests itself when using pl2303 USB->Serial"
+	einfo "\t\040\040adapters."
+	einfo "\t- Other XIO-based devices like MENET and various Impact addons remain"
+	einfo "\t\040\040untested and are not guaranteed to work.  This applies to various"
+	einfo "\t\040\040digital video conversion boards as well."
+	echo -e ""
+}
+
+show_ip32_info() {
+	echo -e ""
+	einfo "IP32 systems function well, however there are some notes:"
+	einfo "\t- A sound driver now exists for IP32.  Celebrate!"
+	einfo "\t- Framebuffer console is limited to 4MB.  Anything greater"
+	einfo "\t\040\040specified when building the kernel will likely oops or panic"
+	einfo "\t\040\040the kernel."
+	einfo "\t- X support is limited to the generic fbdev driver.  No X gbefb"
+	einfo "\t\040\040driver exists for O2 yet.  Patches are welcome, however! :)"
+	echo -e ""
+
+	if use ip32r10k; then
+		eerror "R10000/R12000 Support on IP32 is ${HILITE}HIGHLY EXPERIMENTAL!${NORMAL}"
+		eerror "This is intended ONLY for people interested in fixing it up.  And"
+		eerror "by that, I mean people willing to SEND IN PATCHES!  If you're not"
+		eerror "interested in debugging this issue seriously or just want to run it"
+		eerror "as a user, then DO NOT USE THIS.  Really, we mean it."
+		echo -e ""
+		eerror "All that said, initial testing seems to indicate that this system will"
+		eerror "stay online for a reasonable amount of time and will compile packages."
+		eerror "However, the primary console (which is serial, gbefb seems dead for now)"
+		eerror "will fill with CRIME CPU errors every so often.  A majority of these"
+		eerror "seem harmless, however a few non-fatal oopses have also been triggered."
+		echo -e ""
+		eerror "We're interesting in finding anyone with knowledge of the R10000"
+		eerror "workaround for speculative execution listed in the R10000 Processor"
+		eerror "manual, or those who are familiar with the IP32 chipset and the feature"
+		eerror "called \"Juice\"."
+		echo -e ""
+	fi
+
+	eerror "!!! BIG FAT WARNING"
+	eerror "!!! To Build 64bit kernels for SGI O2 (IP32) or SGI Indy/Indigo2 R4x00 (IP22)"
+	eerror "!!! systems, you _need_ to be using a >=gcc-4.1.1 compiler, have CONFIG_BUILD_ELF64"
+	eerror "!!! disabled in your kernel config, and building with the ${HILITE}vmlinux.32${NORMAL} make target."
+	eerror ""
+	eerror "!!! Once done, copy the ${GOOD}vmlinux.32${NORMAL} file and boot that.  Do not use the"
+	eerror "!!! ${BAD}vmlinux${NORMAL} file -- this will either not boot on IP22 or result in"
+	eerror "!!! undocumented weirdness on IP32 systems."
+}
+
+show_cobalt_info() {
+	echo -e ""
+	einfo "Please keep in mind that the 2.6 kernel will NOT boot on Cobalt"
+	einfo "systems that are still using the old Cobalt bootloader.  In"
+	einfo "order to boot a 2.6 kernel on Cobalt systems, you must be using"
+	einfo "the CoLo bootloader, which does not have the kernel"
+	einfo "size limitation that the older bootloader has.  If you want"
+	einfo "to use the newer bootloader, make sure you have sys-boot/colo"
+	einfo "installed and setup."
+	echo -e ""
+}
+
+
+
+#//------------------------------------------------------------------------------
+
+
+
+# Check our USE flags for machine-specific flags and give appropriate warnings/errors.
+# Hope the user isn't crazy enough to try using combinations of these flags.
+# Only use one machine-specific flag at a time for each type of desired machine-support.
+#
+# Affected machines:	ip27 ip28 ip30
+# Not Affected:		cobalt ip22 ip32
+pkg_setup() {
+	local arch_is_selected="no"
+	local mach_ip
+	local mach_enable
+	local mach_name
+	local x
+
+	# See if we're on a cobalt system first (must use the cobalt-mips profile)
+	if use cobalt; then
+		arch_is_selected="yes"
+		[ "${DO_CBLT}" = "test" ] 						\
+			&& err_disabled_mach "Cobalt Microsystems" "CBLT" "cobalt" "test"
+		[ "${DO_CBLT}" = "no" ] 						\
+			&& err_disabled_mach "Cobalt Microsystems" "CBLT" "cobalt"
+		show_cobalt_info
+	fi
+
+	# Exclusive machine patchsets
+	# These are not allowed to be mixed together, thus only one of them may be applied
+	# to a tree per merge.
+	for x in									\
+		"ip27 SGI Origin 200/2000"						\
+		"ip28 SGI Indigo2 Impact R10000"					\
+		"ip30 SGI Octane"
+	do
+		set -- ${x}		# Set positional params
+		mach_ip="${1}"		# Grab the first param (HW IP for SGI)
+		shift			# Shift the positions
+		mach_name="${*}"	# Get the rest (Name)
+
+		if use ${mach_ip}; then
+			# Fetch the value indiciating if the machine is enabled or not
+			mach_enable="DO_${mach_ip/ip/IP}"
+			mach_enable="${!mach_enable}"
+
+			# Make sure only one of these exclusive machine patches is selected
+			[ "${arch_is_selected}" = "no" ]				\
+				&& arch_is_selected="yes"				\
+				|| err_only_one_mach_allowed
+
+			# Is the machine support disabled or marked as needing testing?
+			[ "${mach_enable}" = "test" ]					\
+				&& err_disabled_mach "${mach_name}" "${mach_ip/ip/IP}" "${mach_ip}" "test"
+			[ "${mach_enable}" = "no" ]					\
+				&& err_disabled_mach "${mach_name}" "${mach_ip/ip/IP}" "${mach_ip}"
+
+			# Show relevant information about the machine
+			show_${mach_ip}_info
+		fi
+	done
+
+	# All other systems that don't have a USE flag go here
+	# These systems have base-line support included in linux-mips git, so
+	# instead of failing, if disabled, we simply warn the user
+	if [ "${arch_is_selected}" = "no" ]; then
+		[ "${DO_IP22}" = "no" ]							\
+			&& err_disabled_mach "SGI Indy/Indigo2 R4x00" "IP22" "skip"	\
+			|| show_ip22_info
+		[ "${DO_IP32}" = "no" ]							\
+			&& err_disabled_mach "SGI O2" "IP32" "skip"			\
+			|| show_ip32_info
+
+	fi
+}
+
+
+
+#//------------------------------------------------------------------------------
+
+
+
+# Generic Patches - Safe to use globally
+do_generic_patches() {
+	echo -e ""
+	ebegin ">>> Generic Patches"
+
+		# IP22 Patches
+		epatch ${MIPS_PATCHES}/misc-2.6.16-ip22-vino-64bit-ioctl-fixes.patch
+
+		# IP32 Patches
+		epatch ${MIPS_PATCHES}/misc-2.6.11-ip32-mace-is-always-eth0.patch
+
+		# Generic
+		epatch ${MIPS_PATCHES}/misc-2.6.27-ths-mips-tweaks.patch
+		epatch ${MIPS_PATCHES}/misc-2.6.23-seccomp-no-default.patch
+		epatch ${MIPS_PATCHES}/misc-2.6.11-add-byteorder-to-proc.patch
+		epatch ${MIPS_PATCHES}/misc-2.6.24-ip32-rm7k-l3-support.patch
+		epatch ${MIPS_PATCHES}/misc-2.6.27-enable-old-rtc-drivers.patch
+		epatch ${MIPS_PATCHES}/misc-2.6.27-squashfs-3.4.patch
+	eend
+}
+
+
+# NOT safe for production systems
+# Use at own risk, do _not_ file bugs on effects of these patches
+do_sekrit_patches() {
+	# /* EXPERIMENTAL - DO NOT USE IN PRODUCTION KERNELS */
+
+	if use ip32r10k; then
+		# Modified version of the IP28 cache barriers patch for the kernel
+		# that removes all the IP28 specific pieces and leaves behind only
+		# the generic segments.
+		epatch ${MIPS_PATCHES}/misc-2.6.20-ip32-r10k-support.patch
+	fi
+
+##	# No Sekrit Patches!
+##	sleep 0
+
+	# /* EXPERIMENTAL - DO NOT USE IN PRODUCTION KERNELS */
+}
+
+
+
+#//------------------------------------------------------------------------------
+
+
+
+# Exclusive Machine Patchsets
+
+# SGI Origin (IP27)
+do_ip27_support() {
+	echo -e ""
+	einfo ">>> Patching the kernel for SGI Origin 200/2000 (IP27) support ..."
+	epatch ${MIPS_PATCHES}/misc-2.6.27-ioc3-metadriver-r27.patch
+	epatch ${MIPS_PATCHES}/misc-2.6.22-ioc3-revert_commit_691cd0c.patch
+}
+
+# SGI Indigo2 Impact R10000 (IP28)
+do_ip28_support() {
+	echo -e ""
+	einfo ">>> Patching the kernel for SGI Indigo2 Impact R10000 (IP28) Graphics support ..."
+	epatch ${MIPS_PATCHES}/misc-2.6.27-ip28-solidimpact-gfx.patch
+}
+
+
+# SGI Octane 'Speedracer' (IP30)
+do_ip30_support() {
+	echo -e ""
+	einfo ">>> Patching the kernel for SGI Octane (IP30) support ..."
+	epatch ${MIPS_PATCHES}/misc-2.6.27-ioc3-metadriver-r27.patch
+	epatch ${MIPS_PATCHES}/misc-2.6.27-ip30-octane-support-r28.patch
+	epatch ${MIPS_PATCHES}/misc-2.6.22-ioc3-revert_commit_691cd0c.patch
+}
+
+
+
+#//------------------------------------------------------------------------------
+
+
+
+# Renames source trees for the few machines that we have separate patches for
+rename_source_tree() {
+	if [ ! -z "${1}" ]; then
+		if use ${1}; then
+			mv ${S} ${S}.${1}
+			S="${S}.${1}"
+		fi
+	fi
+}
+
+
+
+#//------------------------------------------------------------------------------
+
+
+
+src_unpack() {
+	local x
+
+	unpack ${A}
+	mv ${WORKDIR}/linux-${STABLEVER} ${WORKDIR}/linux-${OKV}-${GITDATE}
+	cd ${S}
+
+
+	# If USE_RC == "yes", use a release candidate kernel (2.6.x-rcy)
+	# OR
+	# if USE_PNT == "yes", use a point-release kernel (2.6.x.y)
+	if [ "${USE_RC}" = "yes" -o "${USE_PNT}" = "yes" ]; then
+		echo -e ""
+		einfo ">>> linux-${STABLEVER} --> linux-${OKV} ..."
+		epatch ${WORKDIR}/patch-${OKV}
+	fi
+
+
+	# Update the vanilla sources with linux-mips GIT changes
+	echo -e ""
+	einfo ">>> linux-${OKV} --> linux-${OKV}-${GITDATE} patch ..."
+	epatch ${WORKDIR}/mipsgit-${F_KV}-${GITDATE}.diff
+
+	# Generic patches we always include
+	do_generic_patches
+
+	# Machine-specific patches
+	for x in {ip27,ip28,ip30}; do
+		use ${x} && do_${x}_support
+	done
+
+	# Patches for experimental use
+	do_sekrit_patches
+
+
+	# All done, resume normal portage work
+	kernel_universal_unpack
+}
+
+
+src_install() {
+	# Rename the source trees for exclusive machines
+	local x
+	for x in {ip27,ip28,ip30,cobalt}; do
+		use ${x} && rename_source_tree ${x}
+	done
+
+	kernel_src_install
+}
+
+pkg_postinst() {
+	# Symlink /usr/src/linux as appropriate
+	local my_ksrc="${S##*/}"
+	for x in {ip27,ip28,ip30,cobalt}; do
+		use ${x} && my_ksrc="${my_ksrc}.${x}"
+	done
+
+	if [ ! -e ${ROOT}usr/src/linux ]; then
+		rm -f ${ROOT}usr/src/linux
+		ln -sf ${my_ksrc} ${ROOT}/usr/src/linux
+	fi
+}
+
+
+#//------------------------------------------------------------------------------