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* Merge branch 'timers-core-for-linus' of ↵Linus Torvalds2018-06-041-0/+1
|\ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull timers and timekeeping updates from Thomas Gleixner: - Core infrastucture work for Y2038 to address the COMPAT interfaces: + Add a new Y2038 safe __kernel_timespec and use it in the core code + Introduce config switches which allow to control the various compat mechanisms + Use the new config switch in the posix timer code to control the 32bit compat syscall implementation. - Prevent bogus selection of CPU local clocksources which causes an endless reselection loop - Remove the extra kthread in the clocksource code which has no value and just adds another level of indirection - The usual bunch of trivial updates, cleanups and fixlets all over the place - More SPDX conversions * 'timers-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (24 commits) clocksource/drivers/mxs_timer: Switch to SPDX identifier clocksource/drivers/timer-imx-tpm: Switch to SPDX identifier clocksource/drivers/timer-imx-gpt: Switch to SPDX identifier clocksource/drivers/timer-imx-gpt: Remove outdated file path clocksource/drivers/arc_timer: Add comments about locking while read GFRC clocksource/drivers/mips-gic-timer: Add pr_fmt and reword pr_* messages clocksource/drivers/sprd: Fix Kconfig dependency clocksource: Move inline keyword to the beginning of function declarations timer_list: Remove unused function pointer typedef timers: Adjust a kernel-doc comment tick: Prefer a lower rating device only if it's CPU local device clocksource: Remove kthread time: Change nanosleep to safe __kernel_* types time: Change types to new y2038 safe __kernel_* types time: Fix get_timespec64() for y2038 safe compat interfaces time: Add new y2038 safe __kernel_timespec posix-timers: Make compat syscalls depend on CONFIG_COMPAT_32BIT_TIME time: Introduce CONFIG_COMPAT_32BIT_TIME time: Introduce CONFIG_64BIT_TIME in architectures compat: Enable compat_get/put_timespec64 always ...
| * time: Add an asm-generic/compat.h fileArnd Bergmann2018-04-191-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | We have a couple of files that try to include asm/compat.h on architectures where this is available. Those should generally use the higher-level linux/compat.h file, but that in turn fails to include asm/compat.h when CONFIG_COMPAT is disabled, unless we can provide that header on all architectures. This adds the asm/compat.h for all remaining architectures to simplify the dependencies. Architectures that are getting removed in linux-4.17 are not changed here, to avoid needless conflicts with the removal patches. Those architectures are broken by this patch, but we have already shown that they have no users. Signed-off-by: Arnd Bergmann <arnd@arndb.de>
* | Merge branch 'siginfo-linus' of ↵Linus Torvalds2018-06-042-41/+12
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace Pull siginfo updates from Eric Biederman: "This set of changes close the known issues with setting si_code to an invalid value, and with not fully initializing struct siginfo. There remains work to do on nds32, arc, unicore32, powerpc, arm, arm64, ia64 and x86 to get the code that generates siginfo into a simpler and more maintainable state. Most of that work involves refactoring the signal handling code and thus careful code review. Also not included is the work to shrink the in kernel version of struct siginfo. That depends on getting the number of places that directly manipulate struct siginfo under control, as it requires the introduction of struct kernel_siginfo for the in kernel things. Overall this set of changes looks like it is making good progress, and with a little luck I will be wrapping up the siginfo work next development cycle" * 'siginfo-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiederm/user-namespace: (46 commits) signal/sh: Stop gcc warning about an impossible case in do_divide_error signal/mips: Report FPE_FLTUNK for undiagnosed floating point exceptions signal/um: More carefully relay signals in relay_signal. signal: Extend siginfo_layout with SIL_FAULT_{MCEERR|BNDERR|PKUERR} signal: Remove unncessary #ifdef SEGV_PKUERR in 32bit compat code signal/signalfd: Add support for SIGSYS signal/signalfd: Remove __put_user from signalfd_copyinfo signal/xtensa: Use force_sig_fault where appropriate signal/xtensa: Consistenly use SIGBUS in do_unaligned_user signal/um: Use force_sig_fault where appropriate signal/sparc: Use force_sig_fault where appropriate signal/sparc: Use send_sig_fault where appropriate signal/sh: Use force_sig_fault where appropriate signal/s390: Use force_sig_fault where appropriate signal/riscv: Replace do_trap_siginfo with force_sig_fault signal/riscv: Use force_sig_fault where appropriate signal/parisc: Use force_sig_fault where appropriate signal/parisc: Use force_sig_mceerr where appropriate signal/openrisc: Use force_sig_fault where appropriate signal/nios2: Use force_sig_fault where appropriate ...
| * | signal/nds32: Use force_sig_fault where appropriateEric W. Biederman2018-04-252-30/+9
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Filling in struct siginfo before calling force_sig_info a tedious and error prone process, where once in a great while the wrong fields are filled out, and siginfo has been inconsistently cleared. Simplify this process by using the helper force_sig_fault. Which takes as a parameters all of the information it needs, ensures all of the fiddly bits of filling in struct siginfo are done properly and then calls force_sig_info. In short about a 5 line reduction in code for every time force_sig_info is called, which makes the calling function clearer. Cc: Greentime Hu <green.hu@gmail.com> Cc: Vincent Chen <deanbo422@gmail.com> Acked-by: Vincent Chen <deanbo422@gmail.com> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
| * | signal: Ensure every siginfo we send has all bits initializedEric W. Biederman2018-04-252-1/+3
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Call clear_siginfo to ensure every stack allocated siginfo is properly initialized before being passed to the signal sending functions. Note: It is not safe to depend on C initializers to initialize struct siginfo on the stack because C is allowed to skip holes when initializing a structure. The initialization of struct siginfo in tracehook_report_syscall_exit was moved from the helper user_single_step_siginfo into tracehook_report_syscall_exit itself, to make it clear that the local variable siginfo gets fully initialized. In a few cases the scope of struct siginfo has been reduced to make it clear that siginfo siginfo is not used on other paths in the function in which it is declared. Instances of using memset to initialize siginfo have been replaced with calls clear_siginfo for clarity. Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
| * | signal/nds32: Use force_sig(SIGILL) in do_revisnEric W. Biederman2018-04-251-4/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | As originally committed do_revisn would deliver a siginfo for SIGILL with an si_code composed of random stack contents. That makes no sense and is not something userspace can depend on. So simplify the code and just use "force_sig(SIG_ILL, current)" instead. Fixes: 2923f5ea7738 ("nds32: Exception handling") Cc: Vincent Chen <vincentc@andestech.com> Cc: Greentime Hu <greentime@andestech.com> Cc: Arnd Bergmann <arnd@arndb.de> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
| * | signal/nds32: Use force_sig in unhandled_interruption and unhandled_exceptionsEric W. Biederman2018-04-251-9/+2
| |/ | | | | | | | | | | | | | | | | | | | | | | | | | | | | Neither unhandled_interrupt nor unhandled_exceptions fills in any of the siginfo fields whend sending SIGKILL. Further because it is SIGKILL even if all of the fields were filled out appropriately it would be impossible for the process to read any of the siginfo fields. So simplfy things and just use force_sig instead of force_sig_info. Fixes: 2923f5ea7738 ("nds32: Exception handling") Cc: Vincent Chen <vincentc@andestech.com> Cc: Greentime Hu <greentime@andestech.com> Cc: Arnd Bergmann <arnd@arndb.de> Acked-by: Vincent Chen <vincentc@andestech.com> Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
* | Merge tag 'dma-mapping-4.18' of git://git.infradead.org/users/hch/dma-mappingLinus Torvalds2018-06-044-155/+59
|\ \ | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 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 Hellwig2018-05-294-116/+15
| | | | | | | | | | | | | | | | | | | | | | | | 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: implement the unmap_sg DMA operationChristoph Hellwig2018-05-291-0/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This matches the implementation of the more commonly used unmap_single routines and the sync_sg_for_cpu method which should provide equivalent cache maintainance. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Greentime Hu <greentime@andestech.com> Tested-by: Greentime Hu <greentime@andestech.com>
| * | nds32: consolidate DMA cache maintainance routinesChristoph Hellwig2018-05-291-94/+93
| |/ | | | | | | | | | | | | | | | | | | | | | | | | Make sure all other DMA methods call nds32_dma_sync_single_for_{device,cpu} to perform cache maintaince, and remove the consisteny_sync helper that implemented both with entirely separate code based off an argument. Also make sure these helpers handled highmem properly, for which code is copy and pasted from mips. Signed-off-by: Christoph Hellwig <hch@lst.de> Acked-by: Greentime Hu <greentime@andestech.com> Tested-by: Greentime Hu <greentime@andestech.com>
* | nds32: Fix compiler warning, Wstringop-overflow, in vdso.cVincent Chen2018-05-231-5/+5
| | | | | | | | | | | | | | | | | | | | Getting a compiler warning, Wstringop-overflow, in arch/nds32/kernel/vdso.c when kernel is built by gcc-8. Declaring vdso_start and vdso_end as a pointer to fix this compiler warning. Signed-off-by: Vincent Chen <vincentc@andestech.com> Reviewed-by: Greentime Hu <greentime@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com>
* | nds32: Disable local irq before calling cpu_dcache_wb_page in copy_user_highpageVincent Chen2018-05-231-3/+1
| | | | | | | | | | | | | | | | | | | | | | In order to ensure that all data in source page has been written back to memory before copy_page, the local irq shall be disabled before calling cpu_dcache_wb_page(). In addition, removing unneeded page invalidation for 'to' page. Signed-off-by: Vincent Chen <vincentc@andestech.com> Reviewed-by: Greentime Hu <greentime@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com>
* | nds32: Flush the cache of the page at vmaddr instead of kaddr in flush_anon_pageVincent Chen2018-05-231-2/+7
| | | | | | | | | | | | | | | | | | | | According to Documentation/cachetlb.txt, the cache of the page at vmaddr shall be flushed in flush_anon_page instead of the cache of the page at page_address(page). Signed-off-by: Vincent Chen <vincentc@andestech.com> Reviewed-by: Greentime Hu <greentime@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com>
* | nds32: Correct flush_dcache_page functionVincent Chen2018-05-231-9/+12
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | 1. Disable local irq before d-cache write-back and invalidate. The cpu_dcache_wbinval_page function is composed of d-cache write-back and invalidate. If the local irq is enabled when calling cpu_dcache_wbinval_page, the content of d-cache is possibly updated between write-back and invalidate. In this case, the updated data will be dropped due to the following d-cache invalidation. Therefore, we disable the local irq before calling cpu_dcache_wbinval_page. 2. Correct the data write-back for page aliasing case. Only the page whose (page->index << PAGE_SHIFT) is located at the same page color as page_address(page) needs to execute data write-back in flush_dcache_page function. Signed-off-by: Vincent Chen <vincentc@andestech.com> Reviewed-by: Greentime Hu <greentime@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com>
* | nds32: Fix the unaligned access handlerNickhu2018-05-231-2/+5
| | | | | | | | | | | | | | | | | | | | | | | | If the kernel config 'CONFIG_ALIGNMENT_TRAP' and the file '/proc/sys/nds32/unaligned_access/enable' are set, the kernel unaligned access handler does not handle correctly when the value of immediate field is negative. This commit fixes the unaligned access handler in kernel. Signed-off-by: Nickhu <nickhu@andestech.com> Reviewed-by: Greentime Hu <greentime@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com>
* | nds32: Renaming the file for unaligned accessNickhu2018-05-231-1/+1
| | | | | | | | | | | | | | | | | | Change the name of the file '/proc/sys/nds32/unaligned_acess' to '/proc/sys/nds32/unaligned_access' Signed-off-by: Nickhu <nickhu@andestech.com> Reviewed-by: Greentime Hu <greentime@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com>
* | nds32: To fix a cache inconsistency issue by setting correct cacheability of NTCGreentime Hu2018-05-232-5/+24
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The nds32 architecture will use physical memory when interrupt or exception comes and it will use the setting of NTC0-4. The original implementation didn't consider the DRAM start address may start from 1GB, 2GB or 3GB to cause this issue. It will write the data to DRAM if it is running in physical address however kernel will read the data with virtaul address through data cache. In this case, the data of DRAM is latest. This fix will set the correct cacheability to let kernel write/read the latest data in cache instead of DRAM. Signed-off-by: Greentime Hu <greentime@andestech.com>
* | nds32: To refine readability of INT_MASK_INITAIAL_VALGreentime Hu2018-05-231-1/+1
| | | | | | | | | | | | | | Refine readability of INT_MASK_INITAIAL_VAL with meaningful macro instead of magic number. Signed-off-by: Greentime Hu <greentime@andestech.com>
* | nds32: Fix the virtual address may map too much range by tlbop issue.Greentime Hu2018-05-231-0/+3
| | | | | | | | | | | | | | | | We use tlbop to map virtual address in the first beginning, however it may map too much if DRAM size is not that big. We have to invalidate the mapping when the page table is created. Signed-off-by: Greentime Hu <greentime@andestech.com>
* | nds32: Fix the allmodconfig build. To make sure CONFIG_CPU_LITTLE_ENDIAN is ↵Greentime Hu2018-05-232-2/+7
| | | | | | | | | | | | | | | | | | | | | | default y This way we can build kernel with CONFIG_CPU_LITTLE_ENDIAN=y. Build allmodconfig and allnoconfig are available too. It also fixes the endian mismatch issue because AFLAGS and LDFLAGS is not passed correctly. Signed-off-by: Vincent Ren-Wei Chen <vincentc@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com>
* | nds32: Fix build failed because arch_trace_hardirqs_off is changed to ↵Greentime Hu2018-05-231-1/+1
| | | | | | | | | | | | | | | | | | | | trace_hardirqs_off. It broke the 'allmodconfig' build when CONFIG_TRACE_IRQFLAGS is enabled. Signed-off-by: Nick Chun-Ming Hu <nickhu@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
* | nds32: Fix the unknown type u8 issue.Greentime Hu2018-05-231-0/+2
| | | | | | | | | | | | | | | | | | It broke the 'allmodconfig' build. We need to include <linux/types.h> to make sure the type is defined before using it. Signed-off-by: Greentime Hu <greentime@andestech.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
* | nds32: Fix the symbols undefined issue by exporting them.Greentime Hu2018-05-236-0/+32
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | It broke the 'allmodconfig' build. LD vmlinux SYSMAP System.map Building modules, stage 2. MODPOST 5028 modules ERROR: "flush_dcache_page" [net/sunrpc/xprtrdma/rpcrdma.ko] undefined! ERROR: "empty_zero_page" [net/ceph/libceph.ko] undefined! ERROR: "save_stack_trace" [kernel/backtracetest.ko] undefined! ERROR: "clear_page" [fs/ocfs2/dlm/ocfs2_dlm.ko] undefined! ERROR: "copy_page" [fs/nilfs2/nilfs2.ko] undefined! ... Signed-off-by: Greentime Hu <greentime@andestech.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
* | nds32: Fix xfs_buf built failed by export invalidate_kernel_vmap_range and ↵Greentime Hu2018-05-232-0/+20
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | flush_kernel_vmap_range It broke the 'allmodconfig' build. fs/xfs/xfs_buf.c: In function 'xfs_buf_bio_end_io': fs/xfs/xfs_buf.c:1242:3: error: implicit declaration of function 'invalidate_kernel_vmap_range' [-Werror=implicit-function-declaration] invalidate_kernel_vmap_range(bp->b_addr, xfs_buf_vmap_len(bp)); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~ fs/xfs/xfs_buf.c: In function 'xfs_buf_ioapply_map': fs/xfs/xfs_buf.c:1312:4: error: implicit declaration of function 'flush_kernel_vmap_range' [-Werror=implicit-function-declaration] flush_kernel_vmap_range(bp->b_addr, ^~~~~~~~~~~~~~~~~~~~~~~ Signed-off-by: Greentime Hu <greentime@andestech.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
* | nds32: Fix drivers/gpu/drm/udl/udl_fb.c building error by defining PAGE_SHAREDGreentime Hu2018-05-231-0/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | It broke the 'allmodconfig' build. drivers/gpu/drm/udl/udl_fb.c: In function 'udl_fb_mmap': drivers/gpu/drm/udl/udl_fb.c:183:52: error: 'PAGE_SHARED' undeclared (first use in this function) if (remap_pfn_range(vma, start, page, PAGE_SIZE, PAGE_SHARED)) ^~~~~~~~~~~ drivers/gpu/drm/udl/udl_fb.c:183:52: note: each undeclared identifier is reported only once for each function it appears in make[4]: *** [drivers/gpu/drm/udl/udl_fb.o] Error 1 Signed-off-by: Greentime Hu <greentime@andestech.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
* | nds32: Fix building error of crypto/xor.c by adding xor.hGreentime Hu2018-05-231-0/+1
| | | | | | | | | | | | | | | | | | | | | | When I compiled with allmodconfig, it caused this building failed. crypto/xor.c:25:21: fatal error: asm/xor.h: No such file or directory #include <asm/xor.h> ^ compilation terminated. Signed-off-by: Greentime Hu <greentime@andestech.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
* | 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 Hu2018-05-232-3/+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>
* page cache: use xa_lockMatthew Wilcox2018-04-111-2/+2
| | | | | | | | | | | | | | | | | Remove the address_space ->tree_lock and use the xa_lock newly added to the radix_tree_root. Rename the address_space ->page_tree to ->i_pages, since we don't really care that it's a tree. [willy@infradead.org: fix nds32, fs/dax.c] Link: http://lkml.kernel.org/r/20180406145415.GB20605@bombadil.infradead.orgLink: http://lkml.kernel.org/r/20180313132639.17387-9-willy@infradead.org Signed-off-by: Matthew Wilcox <mawilcox@microsoft.com> Acked-by: Jeff Layton <jlayton@redhat.com> Cc: Darrick J. Wong <darrick.wong@oracle.com> Cc: Dave Chinner <david@fromorbit.com> Cc: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp> Cc: Will Deacon <will.deacon@arm.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
* nds32: To use the generic dump_stack()Greentime Hu2018-03-161-12/+0
| | | | | | | | Use the generic dump_stack() instead of nds32 one because they are doing the same thing. Signed-off-by: Greentime Hu <greentime@andestech.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
* nds32: fix building failed if using elf toolchain.Greentime Hu2018-03-161-1/+0
| | | | | | | | | | | | | | | | OUTPUT_FORMAT is not necessary here and the elf toolchain doesn't support these formats. Since kernel should be built pass with elf or Linux toolchain. This can be removed from vdso.ld.S These are the built failed messages. VDSOL arch/nds32/kernel/vdso/vdso.so.dbg /home/users/greentime/tmp/nds32le-elf-newlib-v3-upstream-b224/bin/../lib/gcc/nds32le-elf/8.0.1/../../../../nds32le-elf/bin/ld: target elf32-nds32le-linux not found collect2: error: ld returned 1 exit status make[1]: *** [arch/nds32/kernel/vdso/vdso.so.dbg] Error 1 make: *** [vdso_prepare] Error 2 Signed-off-by: Greentime Hu <greentime@andestech.com>
* nds32: fix building failed if using older version gcc.Greentime Hu2018-03-161-3/+4
| | | | | | | It will be built failed because these options are not supported by older version gcc. Signed-off-by: Greentime Hu <greentime@andestech.com>
* nds32: Build infrastructureGreentime Hu2018-02-229-0/+529
| | | | | | | | | 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>
* nds32: defconfigGreentime Hu2018-02-221-0/+104
| | | | | | | | This patch adds nds32 defconfig. Signed-off-by: Vincent Chen <vincentc@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
* nds32: Miscellaneous header filesGreentime Hu2018-02-223-0/+63
| | | | | | | | This patch introduces some miscellaneous header files. Signed-off-by: Vincent Chen <vincentc@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
* nds32: Device tree supportGreentime Hu2018-02-223-0/+112
| | | | | | | | This patch adds support for device tree. Signed-off-by: Vincent Chen <vincentc@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
* nds32: Generic timers supportGreentime Hu2018-02-221-0/+11
| | | | | | | | | This patch adds support for timer. Signed-off-by: Vincent Chen <vincentc@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Acked-by: Arnd Bergmann <arnd@arndb.de>
* nds32: Loadable modulesGreentime Hu2018-02-222-0/+289
| | | | | | | | This patch adds support for loadable modules. Signed-off-by: Vincent Chen <vincentc@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
* nds32: L2 cache supportGreentime Hu2018-02-222-0/+201
| | | | | | | | This patch adds L2 cache support. Signed-off-by: Vincent Chen <vincentc@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
* nds32: Debugging supportGreentime Hu2018-02-222-0/+144
| | | | | | | | This patch adds ptrace support. Signed-off-by: Vincent Chen <vincentc@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
* nds32: Library functionsGreentime Hu2018-02-2213-0/+721
| | | | | | | | This patch add support for various library functions. Signed-off-by: Vincent Chen <vincentc@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
* nds32: Signal handling supportGreentime Hu2018-02-222-0/+384
| | | | | | | This patch adds support for signal handling. Signed-off-by: Vincent Chen <vincentc@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com>
* nds32: VDSO supportGreentime Hu2018-02-2212-0/+816
| | | | | | | | | This patch adds VDSO support. The VDSO code is currently used for sys_rt_sigreturn() and optimised gettimeofday() (using the SoC timer counter). Signed-off-by: Vincent Chen <vincentc@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
* nds32: System calls handlingGreentime Hu2018-02-227-0/+383
| | | | | | | | This patch adds support for system calls. Signed-off-by: Vincent Chen <vincentc@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com> Reviewed-by: Arnd Bergmann <arnd@arndb.de>
* nds32: ELF definitionsGreentime Hu2018-02-223-0/+194
| | | | | | | | | This patch adds definitions for the ELF format, relocation types, vdso locations and EXEC_PAGESIZE. Signed-off-by: Vincent Chen <vincentc@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
* nds32: DMA mapping APIGreentime Hu2018-02-222-0/+491
| | | | | | | | | This patch adds support for the DMA mapping API. It uses dma_map_ops for flexibility. Signed-off-by: Vincent Chen <vincentc@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
* nds32: Device specific operationsGreentime Hu2018-02-222-0/+145
| | | | | | | | This patch introduces ioremap implementations. Signed-off-by: Vincent Chen <vincentc@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
* nds32: Atomic operationsGreentime Hu2018-02-222-0/+118
| | | | | | | | | This patch includes the atomic and futex operations. Many atomic operations use the load-lock word(llw) and store-condition word(scw) operations. Signed-off-by: Vincent Chen <vincentc@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
* nds32: IRQ handlingGreentime Hu2018-02-222-0/+45
| | | | | | | | This patch includes irq related functions and irqchip_init(). Signed-off-by: Vincent Chen <vincentc@andestech.com> Signed-off-by: Greentime Hu <greentime@andestech.com> Acked-by: Arnd Bergmann <arnd@arndb.de>
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-27 03:01:17 +0000