kernel.git/arch/powerpc/boot, branch linux-3.18.y

powerpc/boot: Fix random libfdt related build errors

2018-12-21T13:08:47Z

[ Upstream commit 64c3f648c25d108f346fdc96c15180c6b7d250e9 ] Once in a while I see build errors similar to the following when building images from a clean tree. Building powerpc:virtex-ml507:44x/virtex5_defconfig ... failed ------------ Error log: arch/powerpc/boot/treeboot-akebono.c:37:20: fatal error: libfdt.h: No such file or directory Building powerpc:bamboo:smpdev:44x/bamboo_defconfig ... failed ------------ Error log: arch/powerpc/boot/treeboot-akebono.c:37:20: fatal error: libfdt.h: No such file or directory arch/powerpc/boot/treeboot-currituck.c:35:20: fatal error: libfdt.h: No such file or directory Rebuilds will succeed. Turns out that several source files in arch/powerpc/boot/ include libfdt.h, but Makefile dependencies are incomplete. Let's fix that. Signed-off-by: Guenter Roeck Signed-off-by: Michael Ellerman Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman [groeck: Backport to v4.4.y] Signed-off-by: Guenter Roeck Signed-off-by: Sasha Levin

powerpc/boot: Ensure _zimage_start is a weak symbol

2018-11-22T06:32:46Z

[ Upstream commit ee9d21b3b3583712029a0db65a4b7c081d08d3b3 ] When building with clang crt0's _zimage_start is not marked weak, which breaks the build when linking the kernel image: $ objdump -t arch/powerpc/boot/crt0.o |grep _zimage_start$ 0000000000000058 g .text 0000000000000000 _zimage_start ld: arch/powerpc/boot/wrapper.a(crt0.o): in function '_zimage_start': (.text+0x58): multiple definition of '_zimage_start'; arch/powerpc/boot/pseries-head.o:(.text+0x0): first defined here Clang requires the .weak directive to appear after the symbol is declared. The binutils manual says: This directive sets the weak attribute on the comma separated list of symbol names. If the symbols do not already exist, they will be created. So it appears this is different with clang. The only reference I could see for this was an OpenBSD mailing list post[1]. Changing it to be after the declaration fixes building with Clang, and still works with GCC. $ objdump -t arch/powerpc/boot/crt0.o |grep _zimage_start$ 0000000000000058 w .text 0000000000000000 _zimage_start Reported to clang as https://bugs.llvm.org/show_bug.cgi?id=38921 [1] https://groups.google.com/forum/#!topic/fa.openbsd.tech/PAgKKen2YCY Signed-off-by: Joel Stanley Reviewed-by: Nick Desaulniers Signed-off-by: Michael Ellerman Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman

powerpc/boot: Fix zImage TOC alignment

2017-04-22T05:15:00Z

commit 97ee351b50a49717543533cfb85b4bf9d88c9680 upstream. Recent toolchains force the TOC to be 256 byte aligned. We need to enforce this alignment in the zImage linker script, otherwise pointers to our TOC variables (__toc_start) could be incorrect. If the actual start of the TOC and __toc_start don't have the same value we crash early in the zImage wrapper. Suggested-by: Alan Modra Signed-off-by: Michael Ellerman Signed-off-by: Greg Kroah-Hartman

powerpc/ps3: Fix system hang with GCC 5 builds

2017-01-15T14:49:50Z

[ Upstream commit 6dff5b67054e17c91bd630bcdda17cfca5aa4215 ] GCC 5 generates different code for this bootwrapper null check that causes the PS3 to hang very early in its bootup. This check is of limited value, so just get rid of it. Cc: stable@vger.kernel.org Signed-off-by: Geoff Levand Signed-off-by: Michael Ellerman Signed-off-by: Sasha Levin

powerpc/mpc85xx: Add ranges to etsec2 nodes

2015-04-17T00:13:18Z

[ Upstream commit bb344ca5b90df62b1a3b7a35c6a9d00b306a170d ] Commit 746c9e9f92dd "of/base: Fix PowerPC address parsing hack" limited the applicability of the workaround whereby a missing ranges is treated as an empty ranges. This workaround was hiding a bug in the etsec2 device tree nodes, which have children with reg, but did not have ranges. Signed-off-by: Scott Wood Reported-by: Alexander Graf Signed-off-by: Sasha Levin

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux

2014-10-12T00:34:00Z

Pull powerpc updates from Michael Ellerman: "Here's a first pull request for powerpc updates for 3.18. The bulk of the additions are for the "cxl" driver, for IBM's Coherent Accelerator Processor Interface (CAPI). Most of it's in drivers/misc, which Greg & Arnd maintain, Greg said he was happy for us to take it through our tree. There's the usual minor cleanups and fixes, including a bit of noise in drivers from some of those. A bunch of updates to our EEH code, which has been getting more testing. Several nice speedups from Anton, including 20% in clear_page(). And a bunch of updates for freescale from Scott" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mpe/linux: (130 commits) cxl: Fix afu_read() not doing finish_wait() on signal or non-blocking cxl: Add documentation for userspace APIs cxl: Add driver to Kbuild and Makefiles cxl: Add userspace header file cxl: Driver code for powernv PCIe based cards for userspace access cxl: Add base builtin support powerpc/mm: Add hooks for cxl powerpc/opal: Add PHB to cxl mode call powerpc/mm: Add new hash_page_mm() powerpc/powerpc: Add new PCIe functions for allocating cxl interrupts cxl: Add new header for call backs and structs powerpc/powernv: Split out set MSI IRQ chip code powerpc/mm: Export mmu_kernel_ssize and mmu_linear_psize powerpc/msi: Improve IRQ bitmap allocator powerpc/cell: Make spu_flush_all_slbs() generic powerpc/cell: Move data segment faulting code out of cell platform powerpc/cell: Move spu_handle_mm_fault() out of cell platform powerpc/pseries: Use new defines when calling H_SET_MODE powerpc: Update contact info in Documentation files powerpc/perf/hv-24x7: Simplify catalog_read() ...

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial

2014-10-08T01:16:26Z

Pull "trivial tree" updates from Jiri Kosina: "Usual pile from trivial tree everyone is so eagerly waiting for" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial: (39 commits) Remove MN10300_PROC_MN2WS0038 mei: fix comments treewide: Fix typos in Kconfig kprobes: update jprobe_example.c for do_fork() change Documentation: change "&" to "and" in Documentation/applying-patches.txt Documentation: remove obsolete pcmcia-cs from Changes Documentation: update links in Changes Documentation: Docbook: Fix generated DocBook/kernel-api.xml score: Remove GENERIC_HAS_IOMAP gpio: fix 'CONFIG_GPIO_IRQCHIP' comments tty: doc: Fix grammar in serial/tty dma-debug: modify check_for_stack output treewide: fix errors in printk genirq: fix reference in devm_request_threaded_irq comment treewide: fix synchronize_rcu() in comments checkstack.pl: port to AArch64 doc: queue-sysfs: minor fixes init/do_mounts: better syntax description MIPS: fix comment spelling powerpc/simpleboot: fix comment ...

Merge branch 'next' of git://git.kernel.org/pub/scm/linux/kernel/git/scottwood/linux.git

2014-10-03T22:59:06Z

Freescale updates from Scott (27 commits): "Highlights include DMA32 zone support (SATA, USB, etc now works on 64-bit FSL kernels), MSI changes, 8xx optimizations and cleanup, t104x board support, and PrPMC PCI enumeration."

powerpc/boot: Don't install zImage.* from make install

2014-09-25T13:14:34Z

in commit 29f1aff2c (powerpc: Copy bootable images in the default install script) we changed to copying all the built boot targets based on the assumption that it's backwards compatible. It turns out that debian devived installkernel scripts will barf if not given exactly 4 args. This change reverts make install to just install the vmlinux (we can change the dfault in a seperate patch) and introduces a new make zInstall which works with a more flexible installkernel script. Cc: Grant Likely Signed-off-by: Tony Breeds Signed-off-by: Michael Ellerman

powerpc: dts: t208x: Change T208x USB controller version

2014-09-16T22:39:09Z

Change USB controller version to 2.5 in compatible string for T2080/T2081 Signed-off-by: Nikhil Badola Signed-off-by: Scott Wood