# git rev-parse -q --verify 5e9d826a83871d74f73282d150f143bd546f10e9^{commit} 5e9d826a83871d74f73282d150f143bd546f10e9 already have revision, skipping fetch # git checkout -q -f -B kisskb 5e9d826a83871d74f73282d150f143bd546f10e9 # git clean -qxdf # git log -1 commit 5e9d826a83871d74f73282d150f143bd546f10e9 Author: Gavin Shan Date: Fri May 20 16:41:42 2016 +1000 PCI/hotplug: PowerPC PowerNV PCI hotplug driver This adds standalone driver to support PCI hotplug for PowerPC PowerNV platform that runs on top of skiboot firmware. The firmware identifies hotpluggable slots and marked their device tree node with proper "ibm,slot-pluggable" and "ibm,reset-by-firmware". The driver scans device tree nodes to create/register PCI hotplug slot accordingly. The PCI slots are organized in fashion of tree, which means one PCI slot might have parent PCI slot and parent PCI slot possibly contains multiple child PCI slots. At the plugging time, the parent PCI slot is populated before its children. The child PCI slots are removed before their parent PCI slot can be removed from the system. If the skiboot firmware doesn't support slot status retrieval, the PCI slot device node shouldn't have property "ibm,reset-by-firmware". In that case, none of valid PCI slots will be detected from device tree. The skiboot firmware doesn't export the capability to access attention LEDs yet and it's something for TBD. Signed-off-by: Gavin Shan Acked-by: Bjorn Helgaas Signed-off-by: Michael Ellerman # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version # < git log --format=%s --max-count=1 5e9d826a83871d74f73282d150f143bd546f10e9 # < make -j 48 ARCH=powerpc O=/home/kisskb/slave/build/powerpc-next_powerpc-allnoconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- allnoconfig # make -j 48 ARCH=powerpc O=/home/kisskb/slave/build/powerpc-next_powerpc-allnoconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- make[1]: Entering directory '/home/kisskb/slave/build/powerpc-next_powerpc-allnoconfig_powerpc' GEN ./Makefile scripts/kconfig/conf --silentoldconfig Kconfig CHK include/config/kernel.release GEN ./Makefile UPD include/config/kernel.release WRAP arch/powerpc/include/generated/asm/clkdev.h WRAP arch/powerpc/include/generated/asm/div64.h WRAP arch/powerpc/include/generated/asm/irq_regs.h CHK include/generated/uapi/linux/version.h WRAP arch/powerpc/include/generated/asm/local64.h WRAP arch/powerpc/include/generated/asm/mcs_spinlock.h WRAP arch/powerpc/include/generated/asm/preempt.h WRAP arch/powerpc/include/generated/asm/irq_work.h WRAP arch/powerpc/include/generated/asm/rwsem.h WRAP arch/powerpc/include/generated/asm/vtime.h UPD include/generated/uapi/linux/version.h Using /home/kisskb/slave/src as source for kernel CHK include/generated/utsrelease.h UPD include/generated/utsrelease.h HOSTCC scripts/dtc/dtc.o HOSTCC scripts/dtc/flattree.o HOSTCC scripts/dtc/fstree.o CC scripts/mod/empty.o HOSTCC scripts/mod/mk_elfconfig HOSTCC scripts/dtc/data.o HOSTCC scripts/dtc/livetree.o CC scripts/mod/devicetable-offsets.s HOSTCC scripts/dtc/treesource.o HOSTCC scripts/dtc/srcpos.o HOSTCC scripts/dtc/checks.o HOSTCC scripts/dtc/util.o SHIPPED scripts/dtc/dtc-lexer.lex.c SHIPPED scripts/dtc/dtc-parser.tab.c HOSTCC scripts/dtc/dtc-parser.tab.o SHIPPED scripts/dtc/dtc-parser.tab.h HOSTCC scripts/dtc/dtc-lexer.lex.o GEN scripts/mod/devicetable-offsets.h MKELF scripts/mod/elfconfig.h HOSTCC scripts/mod/modpost.o HOSTCC scripts/mod/file2alias.o HOSTCC scripts/mod/sumversion.o HOSTLD scripts/dtc/dtc HOSTLD scripts/mod/modpost CHK include/generated/timeconst.h CC kernel/bounds.s UPD include/generated/timeconst.h CHK include/generated/bounds.h UPD include/generated/bounds.h CC arch/powerpc/kernel/asm-offsets.s CHK include/generated/asm-offsets.h UPD include/generated/asm-offsets.h CALL /home/kisskb/slave/src/scripts/checksyscalls.sh LD usr/built-in.o CC init/main.o CHK include/generated/compile.h CC init/do_mounts.o CC init/noinitramfs.o CC init/init_task.o UPD include/generated/compile.h CC init/version.o CC arch/powerpc/mm/fault.o LD arch/powerpc/sysdev/built-in.o CC arch/powerpc/mm/mem.o AS arch/powerpc/lib/string.o CC arch/powerpc/mm/pgtable.o AS arch/powerpc/lib/crtsavres.o CC arch/powerpc/lib/ppc_ksyms.o CC arch/powerpc/mm/mmap.o CC arch/powerpc/lib/code-patching.o CC arch/powerpc/lib/alloc.o CC arch/powerpc/mm/ppc_mmu_32.o AS arch/powerpc/lib/checksum_32.o AS arch/powerpc/mm/hash_low_32.o CC arch/powerpc/lib/feature-fixups.o CC arch/powerpc/mm/pgtable_32.o CC arch/powerpc/mm/init_32.o CC arch/powerpc/mm/mmu_context_hash32.o CC arch/powerpc/lib/checksum_wrappers.o AS arch/powerpc/lib/copy_32.o CC arch/powerpc/mm/tlb_hash32.o LD arch/powerpc/platforms/built-in.o AS arch/powerpc/lib/div64.o CC arch/powerpc/mm/hugetlbpage.o LD arch/powerpc/math-emu/built-in.o CC arch/powerpc/kernel/syscalls.o CC arch/powerpc/kernel/cputable.o CC arch/powerpc/kernel/irq.o CC arch/powerpc/kernel/align.o CC arch/powerpc/kernel/idle.o CC arch/powerpc/kernel/signal_32.o CC arch/powerpc/kernel/signal.o CC arch/powerpc/kernel/pmc.o CC arch/powerpc/kernel/vdso.o CC arch/powerpc/kernel/process.o CPP arch/powerpc/kernel/systbl_chk.i CC arch/powerpc/kernel/sysfs.o CC arch/powerpc/kernel/ptrace.o CC arch/powerpc/kernel/cacheinfo.o CC arch/powerpc/kernel/time.o CC arch/powerpc/kernel/udbg.o AS arch/powerpc/kernel/misc.o CC arch/powerpc/kernel/io.o CC arch/powerpc/kernel/setup-common.o CC arch/powerpc/kernel/prom.o CC arch/powerpc/kernel/dma.o AS arch/powerpc/kernel/misc_32.o LD arch/powerpc/crypto/built-in.o CC arch/powerpc/kernel/traps.o CC arch/powerpc/kernel/of_platform.o CC arch/powerpc/kernel/prom_parse.o LD arch/powerpc/net/built-in.o AS arch/powerpc/kernel/idle_6xx.o AS arch/powerpc/kernel/l2cr_6xx.o AS arch/powerpc/kernel/cpu_setup_6xx.o AS arch/powerpc/kernel/entry_32.o CC arch/powerpc/kernel/setup_32.o CC arch/powerpc/kernel/pci-common.o CC arch/powerpc/kernel/pci_32.o CC arch/powerpc/kernel/pci_of_scan.o LDS arch/powerpc/kernel/vdso32/vdso32.lds VDSO32A arch/powerpc/kernel/vdso32/sigtramp.o VDSO32A arch/powerpc/kernel/vdso32/gettimeofday.o CC arch/powerpc/kernel/iomap.o VDSO32A arch/powerpc/kernel/vdso32/datapage.o AS arch/powerpc/kernel/head_32.o VDSO32A arch/powerpc/kernel/vdso32/cacheflush.o LDS arch/powerpc/kernel/vmlinux.lds VDSO32A arch/powerpc/kernel/vdso32/note.o AS arch/powerpc/kernel/fpu.o CALL /home/kisskb/slave/src/arch/powerpc/kernel/systbl_chk.sh LD certs/built-in.o LD arch/powerpc/lib/built-in.o AS arch/powerpc/kernel/systbl.o VDSO32L arch/powerpc/kernel/vdso32/vdso32.so.dbg LD arch/powerpc/mm/built-in.o LD ipc/built-in.o OBJCOPY arch/powerpc/kernel/vdso32/vdso32.so AS arch/powerpc/kernel/vdso32/vdso32_wrapper.o CC kernel/fork.o CC kernel/exec_domain.o CC kernel/softirq.o CC kernel/resource.o CC kernel/exit.o CC kernel/cpu.o CC kernel/panic.o CC kernel/sysctl_binary.o CC kernel/sys.o CC kernel/capability.o CC kernel/signal.o CC kernel/sysctl.o CC kernel/ptrace.o CC kernel/user.o CC kernel/kmod.o CC kernel/extable.o CC kernel/nsproxy.o CC kernel/task_work.o CC kernel/pid.o CC kernel/workqueue.o CC kernel/smpboot.o LD arch/powerpc/kernel/vdso32/built-in.o CC kernel/params.o CC kernel/ksysfs.o CC kernel/kthread.o CC kernel/cred.o CC kernel/sys_ni.o CC kernel/notifier.o CC kernel/reboot.o CC kernel/async.o CC kernel/range.o CC security/commoncap.o CC security/min_addr.o LD kernel/livepatch/built-in.o LD crypto/built-in.o CC kernel/printk/printk.o CC kernel/power/qos.o CC kernel/rcu/update.o CC kernel/dma.o CC kernel/locking/mutex.o LD init/mounts.o LD init/built-in.o CC kernel/irq/handle.o CC kernel/up.o CC kernel/elfcore.o CC kernel/irq/irqdesc.o LD block/built-in.o CC kernel/memremap.o CC kernel/irq/manage.o CC mm/filemap.o CC mm/mempool.o CC kernel/locking/semaphore.o CC mm/oom_kill.o CC mm/maccess.o CC kernel/sched/core.o CC kernel/sched/loadavg.o CC kernel/time/time.o CC fs/open.o CC kernel/sched/clock.o CC kernel/sched/cputime.o CC kernel/irq/spurious.o CC kernel/sched/idle_task.o LD sound/built-in.o CC kernel/sched/fair.o CC kernel/sched/rt.o LD kernel/power/built-in.o CC kernel/time/timer.o CC kernel/sched/deadline.o CC kernel/locking/rwsem.o CC kernel/sched/stop_task.o CC fs/read_write.o CC kernel/rcu/sync.o CC mm/page_alloc.o CC kernel/sched/wait.o LD firmware/built-in.o CC kernel/rcu/tiny.o CC kernel/sched/swait.o LD net/built-in.o CC kernel/sched/completion.o CC kernel/sched/idle.o CC mm/page-writeback.o CC kernel/locking/percpu-rwsem.o CC kernel/irq/resend.o CC kernel/locking/rwsem-xadd.o CC kernel/irq/chip.o CC kernel/irq/dummychip.o CC kernel/irq/devres.o CC kernel/irq/irqdomain.o CC kernel/time/hrtimer.o CC kernel/time/itimer.o LD virt/lib/built-in.o CC kernel/time/posix-timers.o CC fs/file_table.o CC kernel/time/posix-cpu-timers.o LD virt/built-in.o CC kernel/time/timekeeping.o CC fs/super.o CC mm/readahead.o CC kernel/time/ntp.o CC fs/char_dev.o LD kernel/printk/built-in.o CC kernel/time/clocksource.o CC mm/swap.o CC fs/stat.o CC mm/truncate.o CC mm/vmscan.o LD security/built-in.o CC kernel/time/timer_list.o CC kernel/time/jiffies.o CC kernel/time/timecounter.o CC kernel/time/timeconv.o CC kernel/time/posix-clock.o CC fs/exec.o CC kernel/time/alarmtimer.o CC fs/pipe.o CC mm/shmem.o CC kernel/time/clockevents.o LD kernel/locking/built-in.o CC mm/util.o CC kernel/time/tick-common.o CC mm/mmzone.o CC mm/vmstat.o LD arch/powerpc/kernel/built-in.o CC fs/fcntl.o CC fs/namei.o CC fs/ioctl.o LD drivers/amba/built-in.o CC fs/readdir.o CC lib/lockref.o LD drivers/auxdisplay/built-in.o LD kernel/rcu/built-in.o CC drivers/base/component.o CC fs/select.o CC drivers/base/core.o CC fs/dcache.o LD drivers/block/built-in.o LD drivers/bus/built-in.o CC fs/inode.o LD drivers/cdrom/built-in.o CC fs/attr.o CC lib/bcd.o CC mm/backing-dev.o LD drivers/firewire/built-in.o LD drivers/clocksource/built-in.o LD kernel/irq/built-in.o CC drivers/char/mem.o CC drivers/char/random.o CC drivers/char/misc.o CC mm/mm_init.o LD drivers/clk/bcm/built-in.o LD drivers/gpio/built-in.o LD drivers/clk/mvebu/built-in.o CC lib/div64.o LD drivers/clk/ti/built-in.o CC mm/mmu_context.o CC mm/percpu.o CC fs/bad_inode.o CC drivers/base/bus.o LD drivers/firmware/broadcom/built-in.o CC mm/slab_common.o CC mm/compaction.o CC mm/vmacache.o LD drivers/gpu/vga/built-in.o CC fs/file.o LD drivers/hsi/clients/built-in.o LD drivers/clk/built-in.o CC mm/interval_tree.o CC fs/filesystems.o LD drivers/firmware/built-in.o LD drivers/hsi/controllers/built-in.o CC mm/list_lru.o LD drivers/hwtracing/intel_th/built-in.o LD drivers/hsi/built-in.o CC fs/namespace.o CC mm/workingset.o CC drivers/base/dd.o CC fs/seq_file.o LD drivers/gpu/drm/bridge/built-in.o CC drivers/base/syscore.o CC fs/xattr.o CC fs/libfs.o CC fs/fs-writeback.o CC mm/debug.o CC lib/sort.o LD drivers/idle/built-in.o LD drivers/leds/built-in.o CC fs/pnode.o LD drivers/gpu/drm/hisilicon/built-in.o CC drivers/irqchip/irqchip.o LD drivers/lguest/built-in.o CC fs/splice.o CC mm/highmem.o CC mm/gup.o LD drivers/gpu/drm/i2c/built-in.o LD drivers/macintosh/built-in.o CC lib/parser.o LD drivers/mfd/built-in.o CC fs/sync.o LD drivers/i2c/algos/built-in.o LD drivers/char/agp/built-in.o LD drivers/mmc/built-in.o LD drivers/i2c/busses/built-in.o CC fs/utimes.o CC fs/stack.o LD drivers/gpu/drm/omapdrm/displays/built-in.o CC fs/fs_struct.o LD drivers/i2c/muxes/built-in.o CC mm/memory.o LD drivers/net/built-in.o CC lib/halfmd4.o CC mm/mincore.o LD drivers/irqchip/built-in.o CC mm/mlock.o LD drivers/gpu/drm/omapdrm/dss/built-in.o CC drivers/base/driver.o LD drivers/i2c/built-in.o LD drivers/nfc/built-in.o LD drivers/misc/cb710/built-in.o CC fs/statfs.o CC mm/mmap.o CC mm/mremap.o CC mm/mprotect.o LD drivers/gpu/drm/omapdrm/built-in.o LD drivers/misc/eeprom/built-in.o LD drivers/nvme/host/built-in.o CC fs/fs_pin.o CC lib/debug_locks.o CC mm/msync.o LD drivers/media/common/b2c2/built-in.o CC drivers/base/class.o CC mm/rmap.o LD drivers/gpu/drm/panel/built-in.o LD drivers/nvme/built-in.o LD drivers/misc/lis3lv02d/built-in.o LD drivers/media/common/saa7146/built-in.o CC drivers/of/base.o CC drivers/base/platform.o CC drivers/of/device.o CC mm/vmalloc.o LD drivers/gpu/drm/tilcdc/built-in.o CC lib/random32.o LD drivers/platform/built-in.o CC mm/pagewalk.o CC mm/pgtable-generic.o CC lib/bust_spinlocks.o LD drivers/media/common/siano/built-in.o CC fs/nsfs.o LD kernel/sched/built-in.o CC mm/init-mm.o CC drivers/pci/access.o LD drivers/gpu/drm/built-in.o CC drivers/base/cpu.o LD drivers/misc/mic/bus/built-in.o CC drivers/base/firmware.o LD drivers/power/built-in.o LD drivers/media/common/v4l2-tpg/built-in.o CC fs/no-block.o CC drivers/base/init.o LD drivers/misc/mic/built-in.o LD drivers/gpu/built-in.o LD drivers/media/common/built-in.o LD fs/devpts/built-in.o /home/kisskb/slave/src/mm/page_alloc.c: In function 'free_area_init_node': /home/kisskb/slave/src/mm/page_alloc.c:5798:17: warning: 'zone_start_pfn' may be used uninitialized in this function [-Wuninitialized] LD drivers/pwm/built-in.o LD fs/exofs/built-in.o LD drivers/char/built-in.o LD drivers/misc/ti-st/built-in.o CC drivers/base/map.o LD drivers/misc/built-in.o LD drivers/soc/fsl/built-in.o LD drivers/media/firewire/built-in.o LD fs/quota/built-in.o LD drivers/soc/bcm/built-in.o LD drivers/usb/host/built-in.o CC drivers/pci/bus.o CC fs/binfmt_elf.o CC fs/ramfs/inode.o LD drivers/tty/ipwireless/built-in.o LD drivers/usb/built-in.o LD fs/notify/dnotify/built-in.o CC mm/nobootmem.o LD drivers/soc/built-in.o LD fs/notify/fanotify/built-in.o LD drivers/tty/serial/built-in.o LD drivers/media/i2c/soc_camera/built-in.o CC drivers/base/devres.o CC mm/memblock.o CC drivers/base/attribute_container.o CC drivers/base/transport_class.o CC lib/bitmap.o LD drivers/media/i2c/built-in.o CC lib/kasprintf.o LD drivers/tty/vt/built-in.o CC drivers/base/topology.o CC mm/dmapool.o CC drivers/pci/host-bridge.o CC drivers/pci/probe.o LD drivers/video/backlight/built-in.o LD fs/notify/inotify/built-in.o LD drivers/media/mmc/siano/built-in.o LD drivers/tty/built-in.o LD drivers/video/fbdev/core/built-in.o CC mm/slub.o CC lib/scatterlist.o CC drivers/base/container.o CC drivers/base/cacheinfo.o CC drivers/base/property.o LD drivers/media/mmc/built-in.o LD fs/notify/built-in.o CC lib/gcd.o CC fs/ramfs/file-mmu.o CC drivers/of/platform.o CC lib/lcm.o CC lib/list_sort.o CC drivers/of/fdt.o LD drivers/media/rc/keymaps/built-in.o LD drivers/media/pci/b2c2/built-in.o LD drivers/media/platform/omap/built-in.o LD drivers/media/pci/ddbridge/built-in.o LD drivers/media/tuners/built-in.o LD drivers/media/pci/dm1105/built-in.o LD drivers/media/rc/built-in.o CC lib/uuid.o CC drivers/base/dma-mapping.o LD drivers/base/power/built-in.o LD drivers/media/platform/built-in.o LD drivers/media/pci/netup_unidvb/built-in.o LD drivers/media/pci/mantis/built-in.o CC lib/flex_array.o LD drivers/video/fbdev/omap2/omapfb/displays/built-in.o LD drivers/media/pci/pt1/built-in.o LD drivers/media/pci/ngene/built-in.o LD drivers/media/pci/pluto2/built-in.o LD drivers/media/pci/pt3/built-in.o LD drivers/video/fbdev/omap2/omapfb/dss/built-in.o CC lib/iov_iter.o LD drivers/media/pci/saa7146/built-in.o LD drivers/media/pci/ttpci/built-in.o LD drivers/video/fbdev/omap2/omapfb/built-in.o LD drivers/media/pci/smipcie/built-in.o CC lib/clz_ctz.o CC drivers/pci/remove.o CC drivers/of/fdt_address.o CC drivers/pci/pci-driver.o CC drivers/pci/pci.o LD kernel/time/built-in.o CC drivers/of/address.o LD drivers/media/usb/b2c2/built-in.o LD kernel/built-in.o LD drivers/media/pci/built-in.o LD drivers/video/fbdev/omap2/built-in.o CC lib/bsearch.o LD drivers/media/usb/dvb-usb/built-in.o LD drivers/video/fbdev/built-in.o CC drivers/of/of_pci.o CC lib/find_bit.o CC drivers/of/irq.o LD drivers/video/built-in.o CC drivers/of/of_pci_irq.o CC lib/llist.o LD drivers/media/usb/dvb-usb-v2/built-in.o CC lib/memweight.o CC drivers/of/of_reserved_mem.o CC lib/kfifo.o LD drivers/media/usb/s2255/built-in.o LD drivers/media/usb/siano/built-in.o LD drivers/media/usb/stkwebcam/built-in.o LD drivers/media/usb/ttusb-budget/built-in.o CC lib/percpu-refcount.o LD drivers/media/usb/ttusb-dec/built-in.o CC lib/percpu_ida.o CC lib/rhashtable.o LD drivers/media/usb/zr364xx/built-in.o CC drivers/pci/search.o CC lib/reciprocal_div.o CC lib/once.o CC lib/string_helpers.o CC drivers/pci/pci-sysfs.o CC lib/hexdump.o LD drivers/media/usb/built-in.o LD fs/ramfs/ramfs.o CC drivers/pci/rom.o LD fs/ramfs/built-in.o CC lib/kstrtox.o CC drivers/pci/setup-res.o CC lib/pci_iomap.o CC drivers/pci/irq.o CC lib/iomap_copy.o CC lib/devres.o CC drivers/pci/vpd.o CC lib/hweight.o LD drivers/media/built-in.o CC lib/bitrev.o CC drivers/pci/setup-bus.o HOSTCC lib/gen_crc32table CC drivers/pci/vc.o CC drivers/pci/syscall.o CC lib/syscall.o CC lib/atomic64.o CC lib/strncpy_from_user.o CC drivers/pci/of.o CC lib/strnlen_user.o LD drivers/pci/host/built-in.o CC lib/argv_split.o CC lib/dec_and_lock.o CC lib/ctype.o CC lib/cmdline.o CC lib/decompress.o CC lib/dma-noop.o CC lib/dump_stack.o CC lib/earlycpio.o CC lib/fdt.o CC lib/fdt_empty_tree.o CC lib/extable.o CC lib/fdt_strerror.o CC lib/fdt_ro.o CC lib/fdt_rw.o CC lib/fdt_sw.o CC lib/flex_proportions.o CC lib/fdt_wip.o CC lib/idr.o CC lib/int_sqrt.o CC lib/ioremap.o CC lib/irq_regs.o CC lib/is_single_threaded.o CC lib/klist.o CC lib/kobject.o CC lib/kobject_uevent.o CC lib/md5.o CC lib/nmi_backtrace.o CC lib/nodemask.o CC lib/ratelimit.o CC lib/plist.o CC lib/radix-tree.o CC lib/rbtree.o CC lib/seq_buf.o CC lib/sha1.o CC lib/show_mem.o CC lib/string.o CC lib/vsprintf.o CC lib/timerqueue.o GEN lib/crc32table.h CC lib/crc32.o LD drivers/base/built-in.o LD fs/built-in.o LD drivers/of/built-in.o LD lib/built-in.o LD mm/built-in.o LD drivers/pci/built-in.o LD drivers/built-in.o AR lib/lib.a LINK vmlinux LD vmlinux.o MODPOST vmlinux.o GEN .version CHK include/generated/compile.h UPD include/generated/compile.h CC init/version.o LD init/built-in.o LD vmlinux SYSMAP System.map /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-strip -s -R .comment vmlinux -o arch/powerpc/boot/vmlinux.strip make[1]: Leaving directory '/home/kisskb/slave/build/powerpc-next_powerpc-allnoconfig_powerpc' Completed OK # rm -rf /home/kisskb/slave/build/powerpc-next_powerpc-allnoconfig_powerpc # Build took: 0:00:13.117462