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2023-09-19parisc: sba_iommu: Fix build warning if procfs if disabledHelge Deller
[ Upstream commit 6428bc7bd3f35e43c8cb7359cb89d83248d339d2 ] Clean up the code, e.g. make proc_mckinley_root static, drop the now empty mckinley header file and remove some unneeded ifdefs around procfs functions. Signed-off-by: Helge Deller <deller@gmx.de> Reported-by: kernel test robot <lkp@intel.com> Closes: https://lore.kernel.org/oe-kbuild-all/202308300800.Jod4sHzM-lkp@intel.com/ Fixes: 77e0ddf097d6 ("parisc: ccio-dma: Create private runway procfs root entry") Signed-off-by: Sasha Levin <sashal@kernel.org>
2023-09-19parisc: led: Fix LAN receive and transmit LEDsHelge Deller
commit 4db89524b084f712a887256391fc19d9f66c8e55 upstream. Fix the LAN receive and LAN transmit LEDs, which where swapped up to now. Signed-off-by: Helge Deller <deller@gmx.de> Cc: <stable@vger.kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-09-13parisc: Fix /proc/cpuinfo output for lscpuHelge Deller
commit 9f5ba4b3e1b3c123eeca5d2d09161e8720048b5c upstream. The lscpu command is broken since commit cab56b51ec0e ("parisc: Fix device names in /proc/iomem") added the PA pathname to all PA devices, includig the CPUs. lscpu parses /proc/cpuinfo and now believes it found different CPU types since every CPU is listed with an unique identifier (PA pathname). Fix this problem by simply dropping the PA pathname when listing the CPUs in /proc/cpuinfo. There is no need to show the pathname in this procfs file. Fixes: cab56b51ec0e ("parisc: Fix device names in /proc/iomem") Signed-off-by: Helge Deller <deller@gmx.de> Cc: <stable@vger.kernel.org> # v4.9+ Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-09-13parisc: ccio-dma: Create private runway procfs root entryHelge Deller
commit 77e0ddf097d6d4ceaf898e088b133b99e0a97fa0 upstream. Create an own procfs "runway" root entry for the CCIO driver. No need to share it with the sba_iommu driver, as only one of those busses can be active in one machine anyway. Signed-off-by: Helge Deller <deller@gmx.de> Reported-by: kernel test robot <lkp@intel.com> Fixes: 547259580dfa ("parisc: Move proc_mckinley_root and proc_runway_root to sba_iommu") Cc: <stable@vger.kernel.org> # v6.5 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2023-08-14parisc: Fix CONFIG_TLB_PTLOCK to work with lightweight spinlock checksHelge Deller
For the TLB_PTLOCK checks we used an optimization to store the spc register into the spinlock to unlock it. This optimization works as long as the lightweight spinlock checks (CONFIG_LIGHTWEIGHT_SPINLOCK_CHECK) aren't enabled, because they really check if the lock word is zero or __ARCH_SPIN_LOCK_UNLOCKED_VAL and abort with a kernel crash ("Spinlock was trashed") otherwise. Drop that optimization to make it possible to activate both checks at the same time. Noticed-by: Sam James <sam@gentoo.org> Signed-off-by: Helge Deller <deller@gmx.de> Tested-by: Sam James <sam@gentoo.org> Cc: stable@vger.kernel.org # v6.4+ Fixes: 15e64ef6520e ("parisc: Add lightweight spinlock checks")
2023-08-11Merge tag 'io_uring-6.5-2023-08-11' of git://git.kernel.dk/linuxLinus Torvalds
Pull io_uring fixes from Jens Axboe: "A followup fix for the parisc/SHM_COLOUR fix, also from Helge, which is heading to stable. And then just the io_uring equivalent of the RESOLVE_CACHED fix in commit a0fc452a5d7f from last week for build_open_flags()" * tag 'io_uring-6.5-2023-08-11' of git://git.kernel.dk/linux: io_uring/parisc: Adjust pgoff in io_uring mmap() for parisc io_uring: correct check for O_TMPFILE
2023-08-10parisc: perf: Make cpu_device variable staticHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de>
2023-08-10parisc: ftrace: Add declaration for ftrace_function_trampoline()Helge Deller
Make sparse happy by adding declaration for ftrace_function_trampoline(). Signed-off-by: Helge Deller <deller@gmx.de>
2023-08-10parisc: boot: Nuke some sparse warnings in decompressorHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de>
2023-08-10parisc: processor: Include asm/smp.h for init_per_cpu()Helge Deller
Fix sparse warning that init_per_cpu() isn't declared. Signed-off-by: Helge Deller <deller@gmx.de>
2023-08-10parisc: unaligned: Include linux/sysctl.h for unaligned_enabledHelge Deller
Fix sparse warning that unaligned_enabled wasn't declared. Signed-off-by: Helge Deller <deller@gmx.de>
2023-08-10parisc: Move proc_mckinley_root and proc_runway_root to sba_iommuHelge Deller
Clean up the procfs root entries for gsc, runway, and mckinley busses. Signed-off-by: Helge Deller <deller@gmx.de>
2023-08-10parisc: dma: Add prototype for pcxl_dma_startHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de>
2023-08-10parisc: parisc_ksyms: Include libgcc.h for libgcc prototypesHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de>
2023-08-10parisc: ucmpdi2: Fix no previous prototype for '__ucmpdi2' warningHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de>
2023-08-10parisc: firmware: Mark pdc_result buffers localHelge Deller
This fixes a sparse warning which suggest to make those static. Signed-off-by: Helge Deller <deller@gmx.de>
2023-08-10parisc: firmware: Fix sparse context imbalance warningsHelge Deller
Tell sparse about correct context for pdc_cpu_rendezvous_*lock() functions. Signed-off-by: Helge Deller <deller@gmx.de>
2023-08-10parisc: signal: Fix sparse incorrect type in assignment warningHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de>
2023-08-10parisc: ioremap: Fix sparse warningsHelge Deller
Fix sparse warning: incorrect type in assignment (different base types) expected unsigned long [usertype] addr got void *addr Signed-off-by: Helge Deller <deller@gmx.de>
2023-08-10parisc: fault: Use C99 arrary initializersHelge Deller
Sparse wants C99 array initializers. Signed-off-by: Helge Deller <deller@gmx.de>
2023-08-10parisc: pdt: Use PTR_ERR_OR_ZERO() to simplify codeYang Yingliang
Return PTR_ERR_OR_ZERO() instead of return 0 or PTR_ERR() to simplify code. Signed-off-by: Yang Yingliang <yangyingliang@huawei.com> Signed-off-by: Helge Deller <deller@gmx.de>
2023-08-10parisc: Fix lightweight spinlock checks to not break futexesHelge Deller
The lightweight spinlock checks verify that a spinlock has either value 0 (spinlock locked) and that not any other bits than in __ARCH_SPIN_LOCK_UNLOCKED_VAL is set. This breaks the current LWS code, which writes the address of the lock into the lock word to unlock it, which was an optimization to save one assembler instruction. Fix it by making spinlock_types.h accessible for asm code, change the LWS spinlock-unlocking code to write __ARCH_SPIN_LOCK_UNLOCKED_VAL into the lock word, and add some missing lightweight spinlock checks to the LWS path. Finally, make the spinlock checks dependend on DEBUG_KERNEL. Noticed-by: John David Anglin <dave.anglin@bell.net> Signed-off-by: Helge Deller <deller@gmx.de> Tested-by: John David Anglin <dave.anglin@bell.net> Cc: stable@vger.kernel.org # v6.4+ Fixes: 15e64ef6520e ("parisc: Add lightweight spinlock checks")
2023-08-08io_uring/parisc: Adjust pgoff in io_uring mmap() for pariscHelge Deller
The changes from commit 32832a407a71 ("io_uring: Fix io_uring mmap() by using architecture-provided get_unmapped_area()") to the parisc implementation of get_unmapped_area() broke glibc's locale-gen executable when running on parisc. This patch reverts those architecture-specific changes, and instead adjusts in io_uring_mmu_get_unmapped_area() the pgoff offset which is then given to parisc's get_unmapped_area() function. This is much cleaner than the previous approach, and we still will get a coherent addresss. This patch has no effect on other architectures (SHM_COLOUR is only defined on parisc), and the liburing testcase stil passes on parisc. Cc: stable@vger.kernel.org # 6.4 Signed-off-by: Helge Deller <deller@gmx.de> Reported-by: Christoph Biedl <linux-kernel.bfrz@manchmal.in-ulm.de> Fixes: 32832a407a71 ("io_uring: Fix io_uring mmap() by using architecture-provided get_unmapped_area()") Fixes: d808459b2e31 ("io_uring: Adjust mapping wrt architecture aliasing requirements") Link: https://lore.kernel.org/r/ZNEyGV0jyI8kOOfz@p100 Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-08-03parisc: unaligned: Add required spaces after ','hanyu001@208suo.com
Fix checkpatch warnings: unaligned.c:475: ERROR: space required after that ',' Signed-off-by: Yu Han <hanyu001@208suo.com> Signed-off-by: Helge Deller <deller@gmx.de>
2023-08-03parisc: pci-dma: remove unused and dead EISA code and commentPetr Tesarik
Clearly, this code isn't needed, but it gives a false positive when grepping the complete source tree for coherent_dma_mask. Signed-off-by: Petr Tesarik <petr.tesarik.ext@huawei.com> Signed-off-by: Helge Deller <deller@gmx.de>
2023-08-03parisc/mm: preallocate fixmap page tables at initMike Rapoport (IBM)
Christoph Biedl reported early OOM on recent kernels: swapper: page allocation failure: order:0, mode:0x100(__GFP_ZERO), nodemask=(null) CPU: 0 PID: 0 Comm: swapper Not tainted 6.3.0-rc4+ #16 Hardware name: 9000/785/C3600 Backtrace: [<10408594>] show_stack+0x48/0x5c [<10e152d8>] dump_stack_lvl+0x48/0x64 [<10e15318>] dump_stack+0x24/0x34 [<105cf7f8>] warn_alloc+0x10c/0x1c8 [<105d068c>] __alloc_pages+0xbbc/0xcf8 [<105d0e4c>] __get_free_pages+0x28/0x78 [<105ad10c>] __pte_alloc_kernel+0x30/0x98 [<10406934>] set_fixmap+0xec/0xf4 [<10411ad4>] patch_map.constprop.0+0xa8/0xdc [<10411bb0>] __patch_text_multiple+0xa8/0x208 [<10411d78>] patch_text+0x30/0x48 [<1041246c>] arch_jump_label_transform+0x90/0xcc [<1056f734>] jump_label_update+0xd4/0x184 [<1056fc9c>] static_key_enable_cpuslocked+0xc0/0x110 [<1056fd08>] static_key_enable+0x1c/0x2c [<1011362c>] init_mem_debugging_and_hardening+0xdc/0xf8 [<1010141c>] start_kernel+0x5f0/0xa98 [<10105da8>] start_parisc+0xb8/0xe4 Mem-Info: active_anon:0 inactive_anon:0 isolated_anon:0 active_file:0 inactive_file:0 isolated_file:0 unevictable:0 dirty:0 writeback:0 slab_reclaimable:0 slab_unreclaimable:0 mapped:0 shmem:0 pagetables:0 sec_pagetables:0 bounce:0 kernel_misc_reclaimable:0 free:0 free_pcp:0 free_cma:0 Node 0 active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:0kB dirty:0kB writeback:0kB shmem:0kB +writeback_tmp:0kB kernel_stack:0kB pagetables:0kB sec_pagetables:0kB all_unreclaimable? no Normal free:0kB boost:0kB min:0kB low:0kB high:0kB reserved_highatomic:0KB active_anon:0kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB +present:1048576kB managed:1039360kB mlocked:0kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 0 Normal: 0*4kB 0*8kB 0*16kB 0*32kB 0*64kB 0*128kB 0*256kB 0*512kB 0*1024kB 0*2048kB 0*4096kB = 0kB 0 total pagecache pages 0 pages in swap cache Free swap = 0kB Total swap = 0kB 262144 pages RAM 0 pages HighMem/MovableOnly 2304 pages reserved Backtrace: [<10411d78>] patch_text+0x30/0x48 [<1041246c>] arch_jump_label_transform+0x90/0xcc [<1056f734>] jump_label_update+0xd4/0x184 [<1056fc9c>] static_key_enable_cpuslocked+0xc0/0x110 [<1056fd08>] static_key_enable+0x1c/0x2c [<1011362c>] init_mem_debugging_and_hardening+0xdc/0xf8 [<1010141c>] start_kernel+0x5f0/0xa98 [<10105da8>] start_parisc+0xb8/0xe4 Kernel Fault: Code=15 (Data TLB miss fault) at addr 0f7fe3c0 CPU: 0 PID: 0 Comm: swapper Not tainted 6.3.0-rc4+ #16 Hardware name: 9000/785/C3600 This happens because patching static key code temporarily maps it via fixmap and if it happens before page allocator is initialized set_fixmap() cannot allocate memory using pte_alloc_kernel(). Make sure that fixmap page tables are preallocated early so that pte_offset_kernel() in set_fixmap() never resorts to pte allocation. Signed-off-by: Mike Rapoport (IBM) <rppt@kernel.org> Acked-by: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Helge Deller <deller@gmx.de> Tested-by: Christoph Biedl <linux-kernel.bfrz@manchmal.in-ulm.de> Tested-by: John David Anglin <dave.anglin@bell.net> Cc: <stable@vger.kernel.org> # v6.4+
2023-07-29arch/*/configs/*defconfig: Replace AUTOFS4_FS by AUTOFS_FSSven Joachim
Commit a2225d931f75 ("autofs: remove left-over autofs4 stubs") promised the removal of the fs/autofs/Kconfig fragment for AUTOFS4_FS within a couple of releases, but five years later this still has not happened yet, and AUTOFS4_FS is still enabled in 63 defconfigs. Get rid of it mechanically: git grep -l CONFIG_AUTOFS4_FS -- '*defconfig' | xargs sed -i 's/AUTOFS4_FS/AUTOFS_FS/' Also just remove the AUTOFS4_FS config option stub. Anybody who hasn't regenerated their config file in the last five years will need to just get the new name right when they do. Signed-off-by: Sven Joachim <svenjoac@gmx.de> Acked-by: Ian Kent <raven@themaw.net> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2023-07-22Merge tag 'io_uring-6.5-2023-07-21' of git://git.kernel.dk/linuxLinus Torvalds
Pull io_uring fixes from Jens Axboe: - Fix for io-wq not always honoring REQ_F_NOWAIT, if it was set and punted directly (eg via DRAIN) (me) - Capability check fix (Ondrej) - Regression fix for the mmap changes that went into 6.4, which apparently broke IA64 (Helge) * tag 'io_uring-6.5-2023-07-21' of git://git.kernel.dk/linux: ia64: mmap: Consider pgoff when searching for free mapping io_uring: Fix io_uring mmap() by using architecture-provided get_unmapped_area() io_uring: treat -EAGAIN for REQ_F_NOWAIT as final for io-wq io_uring: don't audit the capability check in io_uring_create()
2023-07-21io_uring: Fix io_uring mmap() by using architecture-provided get_unmapped_area()Helge Deller
The io_uring testcase is broken on IA-64 since commit d808459b2e31 ("io_uring: Adjust mapping wrt architecture aliasing requirements"). The reason is, that this commit introduced an own architecture independend get_unmapped_area() search algorithm which finds on IA-64 a memory region which is outside of the regular memory region used for shared userspace mappings and which can't be used on that platform due to aliasing. To avoid similar problems on IA-64 and other platforms in the future, it's better to switch back to the architecture-provided get_unmapped_area() function and adjust the needed input parameters before the call. Beside fixing the issue, the function now becomes easier to understand and maintain. This patch has been successfully tested with the io_uring testcase on physical x86-64, ppc64le, IA-64 and PA-RISC machines. On PA-RISC the LTP mmmap testcases did not report any regressions. Cc: stable@vger.kernel.org # 6.4 Signed-off-by: Helge Deller <deller@gmx.de> Reported-by: matoro <matoro_mailinglist_kernel@matoro.tk> Fixes: d808459b2e31 ("io_uring: Adjust mapping wrt architecture aliasing requirements") Link: https://lore.kernel.org/r/20230721152432.196382-2-deller@gmx.de Signed-off-by: Jens Axboe <axboe@kernel.dk>
2023-07-03parisc: syscalls: Avoid compiler warnings with W=1Helge Deller
We do not want to add prototypes for all parisc specific syscalls, so simply drop such warnings when building the kernel. Signed-off-by: Helge Deller <deller@gmx.de>
2023-07-03parisc: math-emu: Avoid compiler warnings with W=1Helge Deller
The math-emu code is a snapshot from the HP-UX kernel. They've been modified as little as possible. See arch/parisc/math-emu/README. Signed-off-by: Helge Deller <deller@gmx.de>
2023-07-03parisc: unwind: Avoid missing prototype warning for handle_interruption()Helge Deller
Signed-off-by: Helge Deller <deller@gmx.de>
2023-07-03parisc: smp: Add declaration for start_cpu_itimer()Helge Deller
Avoid gcc warning about missing prototype for start_cpu_itimer(). Signed-off-by: Helge Deller <deller@gmx.de>
2023-07-03parisc: pdt: Get prototype for arch_report_meminfo()Helge Deller
Include linux/proc_fs.h to avoid compiler warning about missing prototype for 'arch_report_meminfo' Signed-off-by: Helge Deller <deller@gmx.de>
2023-06-30parisc: Refresh defconfigsHelge Deller
Refresh defconfigs and enable some more graphic cards. Signed-off-by: Helge Deller <deller@gmx.de>
2023-06-30parisc: irq: Add irq-related function declarationsHelge Deller
Move function declarations for do_cpu_irq_mask(), timer_interrupt() and ipi_interrupt() to header file. Signed-off-by: Helge Deller <deller@gmx.de>
2023-06-30parisc: Move init function declarations into header fileHelge Deller
Clean up the code to not have external function declarations inside the C source files. Reduces warnings when compiled with W=1. Signed-off-by: Helge Deller <deller@gmx.de>
2023-06-30parisc: unaligned: Include header file to avoid missing prototype warningsHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de>
2023-06-30parisc: signal: Mark do_notify_resume() and sys_rt_sigreturn() asmlinkageHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de>
2023-06-30parisc: unwind: Mark start and stop variables __maybe_unusedHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de>
2023-06-30parisc: init: Drop unused variable end_paddrHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de>
2023-06-30parisc: traps: Mark functions staticHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de>
2023-06-30parisc: processor: Fix kdoc for init_cpu_profiler()Helge Deller
Signed-off-by: Helge Deller <deller@gmx.de>
2023-06-30parisc: sys_parisc: parisc_personality() is called from asm codeHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de>
2023-06-30parisc: pci-dma: Make pcxl_alloc_range() staticHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de>
2023-06-30parisc: Mark image_size __maybe_unused in perf_write()Helge Deller
Signed-off-by: Helge Deller <deller@gmx.de>
2023-06-30parisc: module: Mark symindex __maybe_unusedHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de>
2023-06-30parisc: pdc_chassis: Fix kdoc warningsHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de>
2023-06-30parisc: firmware: Fix kdoc warningsHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de>
2023-06-30parisc: drivers: Fix kdoc warningsHelge Deller
Signed-off-by: Helge Deller <deller@gmx.de>
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