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* nds32: Fix build error caused by configuration flag renameGuenter Roeck2018-06-191-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Fix build error on nds32 due to the merge of commit e3d5980568f ("lib: Rename compiler intrinsic selects to GENERIC_LIB_*") during the 4.18 merge window which renames Kconfig symbols. This had raced with commit aeaa7af744fa ("nds32: lib: To use generic lib instead of libgcc to prevent the symbol undefined issue.") merged late in the 4.17 cycle, which added selects to nds32 using the original Kconfig symbol names. When they came together in merge commit 763f96944c95 ("Merge tag 'mips_4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux") this resulted in the following build errors: nds32le-linux-ld: kernel/time/timekeeping.o: in function `timekeeping_init': timekeeping.c:(.init.text+0x140): undefined reference to `__ashldi3' nds32le-linux-ld: timekeeping.c:(.init.text+0x144): undefined reference to `__ashldi3' nds32le-linux-ld: timekeeping.c:(.init.text+0x17e): undefined reference to `__lshrdi3' nds32le-linux-ld: timekeeping.c:(.init.text+0x182): undefined reference to `__lshrdi3' nds32le-linux-ld: drivers/clocksource/mmio.o: in function `clocksource_mmio_init': mmio.c:(.init.text+0x54): undefined reference to `__lshrdi3' nds32le-linux-ld: mmio.c:(.init.text+0x58): undefined reference to `__lshrdi3' Rename all 6 selects in nds32 and adjust the ordering accordingly to be alphabetical. Fixes: 763f96944c95 ("Merge tag 'mips_4.18' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux") Signed-off-by: Guenter Roeck <linux@roeck-us.net> [jhogan@kernel.org: Rename all 6 symbols, sort, update commit message] Signed-off-by: James Hogan <jhogan@kernel.org> Cc: Greentime Hu <green.hu@gmail.com> Cc: Vincent Chen <deanbo422@gmail.com> Cc: Matt Redfearn <matt.redfearn@mips.com> Cc: Palmer Dabbelt <palmer@sifive.com> Acked-by: Greentime Hu <greentime@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com>
* Merge tag 'dma-mapping-4.18' of git://git.infradead.org/users/hch/dma-mappingLinus Torvalds2018-06-041-0/+3
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Pull dma-mapping updates from Christoph Hellwig: - replace the force_dma flag with a dma_configure bus method. (Nipun Gupta, although one patch is іncorrectly attributed to me due to a git rebase bug) - use GFP_DMA32 more agressively in dma-direct. (Takashi Iwai) - remove PCI_DMA_BUS_IS_PHYS and rely on the dma-mapping API to do the right thing for bounce buffering. - move dma-debug initialization to common code, and apply a few cleanups to the dma-debug code. - cleanup the Kconfig mess around swiotlb selection - swiotlb comment fixup (Yisheng Xie) - a trivial swiotlb fix. (Dan Carpenter) - support swiotlb on RISC-V. (based on a patch from Palmer Dabbelt) - add a new generic dma-noncoherent dma_map_ops implementation and use it for arc, c6x and nds32. - improve scatterlist validity checking in dma-debug. (Robin Murphy) - add a struct device quirk to limit the dma-mask to 32-bit due to bridge/system issues, and switch x86 to use it instead of a local hack for VIA bridges. - handle devices without a dma_mask more gracefully in the dma-direct code. * tag 'dma-mapping-4.18' of git://git.infradead.org/users/hch/dma-mapping: (48 commits) dma-direct: don't crash on device without dma_mask nds32: use generic dma_noncoherent_ops nds32: implement the unmap_sg DMA operation nds32: consolidate DMA cache maintainance routines x86/pci-dma: switch the VIA 32-bit DMA quirk to use the struct device flag x86/pci-dma: remove the explicit nodac and allowdac option x86/pci-dma: remove the experimental forcesac boot option Documentation/x86: remove a stray reference to pci-nommu.c core, dma-direct: add a flag 32-bit dma limits dma-mapping: remove unused gfp_t parameter to arch_dma_alloc_attrs dma-debug: check scatterlist segments c6x: use generic dma_noncoherent_ops arc: use generic dma_noncoherent_ops arc: fix arc_dma_{map,unmap}_page arc: fix arc_dma_sync_sg_for_{cpu,device} arc: simplify arc_dma_sync_single_for_{cpu,device} dma-mapping: provide a generic dma-noncoherent implementation dma-mapping: simplify Kconfig dependencies riscv: add swiotlb support riscv: only enable ZONE_DMA32 for 64-bit ...
| * nds32: use generic dma_noncoherent_opsChristoph Hellwig2018-05-291-0/+3
| | | | | | | | | | | | | | | | Switch to the generic noncoherent direct mapping implementation. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Greentime Hu <greentime@andestech.com> Tested-by: Greentime Hu <greentime@andestech.com>
* | nds32: Fix building error when CONFIG_FREEZE is enabled.Greentime Hu2018-05-231-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | To include kernel/Kconfig.freezer to make sure the dependency between CONFIG_CGROUP_FREEZER and CONFIG_FREEZER It will cause building error when I make allmodconfig. kernel/cgroup/freezer.c: In function 'freezer_css_online': kernel/cgroup/freezer.c:116:15: error: 'system_freezing_cnt' undeclared (first use in this function) atomic_inc(&system_freezing_cnt); ^~~~~~~~~~~~~~~~~~~ kernel/cgroup/freezer.c:116:15: note: each undeclared identifier is reported only once for each function it appears in kernel/cgroup/freezer.c: In function 'freezer_css_offline': kernel/cgroup/freezer.c:137:15: error: 'system_freezing_cnt' undeclared (first use in this function) atomic_dec(&system_freezing_cnt); ^~~~~~~~~~~~~~~~~~~ kernel/cgroup/freezer.c: In function 'freezer_attach': kernel/cgroup/freezer.c:181:4: error: implicit declaration of function 'freeze_task' [-Werror=implicit-function-declaration] freeze_task(task); ^~~~~~~~~~~ kernel/cgroup/freezer.c: In function 'freezer_apply_state': kernel/cgroup/freezer.c:360:16: error: 'system_freezing_cnt' undeclared (first use in this function) atomic_inc(&system_freezing_cnt); ^~~~~~~~~~~~~~~~~~~ Signed-off-by: Greentime Hu <greentime@andestech.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
* | nds32: lib: To use generic lib instead of libgcc to prevent the symbol ↵Greentime Hu2018-05-231-0/+6
|/ | | | | | | | | | | | | | | | undefined issue. We can use the generic lib to fix these error because the symbol of libgcc in toolchain is not exported. ERROR: "__ucmpdi2" [fs/xfs/xfs.ko] undefined! ERROR: "__ashrdi3" [fs/xfs/xfs.ko] undefined! ERROR: "__lshrdi3" [fs/xfs/xfs.ko] undefined! ERROR: "__ashldi3" [fs/ntfs/ntfs.ko] undefined! ... Signed-off-by: Greentime Hu <greentime@andestech.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
* nds32: Build infrastructureGreentime Hu2018-02-221-0/+103
This patch adds Makefile, Kconfig and vmlinux.lds.S files required for building an nds32 kernel. Signed-off-by: Vincent Chen <vincentc@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com> Acked-by: Arnd Bergmann <arnd@arndb.de>