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2020-10-12ceph: don't SetPageError on readpage errorsJeff Layton
PageError really only has meaning within a particular subsystem. Nothing looks at this bit in the core kernel code, and ceph itself doesn't care about it. Don't bother setting the PageError bit on error. Signed-off-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: Matthew Wilcox (Oracle) <willy@infradead.org> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-10-12ceph: mark ceph_fmt_xattr() as printf-like for better type checkingIlya Dryomov
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-10-12ceph: fold ceph_update_writeable_page into ceph_write_beginJeff Layton
...and reorganize the loop for better clarity. Signed-off-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-10-12ceph: fold ceph_sync_writepages into writepage_nounlockJeff Layton
Signed-off-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-10-12ceph: fold ceph_sync_readpages into ceph_readpageJeff Layton
Signed-off-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-10-12ceph: don't call ceph_update_writeable_page from page_mkwriteJeff Layton
page_mkwrite should only be called with Uptodate pages, so we should only need to flush incompatible snap contexts. Signed-off-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-10-12ceph: break out writeback of incompatible snap context to separate functionJeff Layton
When dirtying a page, we have to flush incompatible contexts. Move the search for an incompatible context into a separate function, and fix up the caller to wait and retry if there is one. Signed-off-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-10-12ceph: add a note explaining session reject error stringIlya Dryomov
error_string key in the metadata map of MClientSession message is intended for humans, but unfortunately became part of the on-wire format with the introduction of recover_session=clean mode in commit 131d7eb4faa1 ("ceph: auto reconnect after blacklisted"). Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-10-12libceph: switch to the new "osd blocklist add" commandIlya Dryomov
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-10-12libceph, rbd, ceph: "blacklist" -> "blocklist"Ilya Dryomov
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-10-12ceph: have ceph_writepages_start call pagevec_lookup_range_tagJeff Layton
Currently it calls pagevec_lookup_range_nr_tag(), but that may be inefficient, as we might end up having to search several times as we get down to looking for fewer pages to fill the array. Thus spake Willy: "I think ceph is misusing pagevec_lookup_range_nr_tag(). Let's suppose you get a range which is AAAAbbbbAAAAbbbbAAAAbbbbbbbb(...)bbbbAAAA and you try to fetch max_pages=13. First loop will get AAAAbbbbAAAAb and have 8 locked_pages. The next call will get bbbAA and now locked_pages=10. Next call gets AAb ... and now you're iterating your way through all the 'b' one page at a time until you find that first A." 'A' here refers to pages that are eligible for writeback and 'b' represents ones that aren't (for whatever reason). Not capping the number of return pages may mean that we sometimes find more pages than are needed, but the extra references will just get put at the end. Ceph is also the only caller of pagevec_lookup_range_nr_tag(), so this change should allow us to eliminate that call as well. That will be done in a follow-on patch. Reported-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Jeff Layton <jlayton@kernel.org> Reviewed-by: Matthew Wilcox <willy@infradead.org> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-10-12ceph: use kill_anon_super helperJeff Layton
ceph open-codes this around some other activity and the rationale for it isn't clear. There is no need to delay free_anon_bdev until the end of kill_sb. Signed-off-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-10-12ceph: metrics for opened files, pinned caps and opened inodesXiubo Li
In client for each inode, it may have many opened files and may have been pinned in more than one MDS servers. And some inodes are idle, which have no any opened files. This patch will show these metrics in the debugfs, likes: item total ----------------------------------------- opened files / total inodes 14 / 5 pinned i_caps / total inodes 7 / 5 opened inodes / total inodes 3 / 5 Will send these metrics to ceph, which will be used by the `fs top`, later. [ jlayton: drop unrelated hunk, count hashed inodes instead of allocated ones ] URL: https://tracker.ceph.com/issues/47005 Signed-off-by: Xiubo Li <xiubli@redhat.com> Signed-off-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-10-12ceph: add ceph_sb_to_mdsc helper support to parse the mdscXiubo Li
This will help simplify the code. [ jlayton: fix minor merge conflict in quota.c ] Signed-off-by: Xiubo Li <xiubli@redhat.com> Signed-off-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-10-12ceph: drop special-casing for ITER_PIPE in ceph_sync_readJeff Layton
This special casing was added in 7ce469a53e71 (ceph: fix splice read for no Fc capability case). The confirm callback for ITER_PIPE expects that the page is Uptodate and returns an error otherwise. A simpler workaround is just to use the Uptodate bit, which has no meaning for anonymous pages. Rip out the special casing for ITER_PIPE and just SetPageUptodate before we copy to the iter. Cc: John Hubbard <jhubbard@nvidia.com> Suggested-by: Al Viro <viro@zeniv.linux.org.uk> Signed-off-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-10-12ceph: add column 'mds' to show caps in more user friendlyYanhu Cao
In multi-mds, the 'caps' debugfs file will have duplicate ino, add the 'mds' column to indicate which mds session the cap belongs to. Signed-off-by: Yanhu Cao <gmayyyha@gmail.com> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-10-12libceph: multiple workspaces for CRUSH computationsIlya Dryomov
Replace a global map->crush_workspace (protected by a global mutex) with a list of workspaces, up to the number of CPUs + 1. This is based on a patch from Robin Geuze <robing@nl.team.blue>. Robin and his team have observed a 10-20% increase in IOPS on all queue depths and lower CPU usage as well on a high-end all-NVMe 100GbE cluster. Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-10-12ceph: remove unnecessary return in switch statementLuis Henriques
Since there's a return immediately after the 'break', there's no need for this extra 'return' in the S_IFDIR case. Signed-off-by: Luis Henriques <lhenriques@suse.de> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-10-12ceph: encode inodes' parent/d_name in cap reconnect messageYan, Zheng
Since nautilus, MDS tracks dirfrags whose child inodes have caps in open file table. When MDS recovers, it prefetches all of these dirfrags. This avoids using backtrace to load inodes. But dirfrags prefetch may load lots of useless inodes into cache, and make MDS run out of memory. Recent MDS adds an option that disables dirfrags prefetch. When dirfrags prefetch is disabled. Recovering MDS only prefetches corresponding dir inodes. Including inodes' parent/d_name in cap reconnect message can help MDS to load inodes into its cache. Signed-off-by: "Yan, Zheng" <zyan@redhat.com> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
2020-10-12Merge branch 'efi/urgent' into efi/core, to pick up fixesIngo Molnar
These fixes missed the v5.9 merge window, pick them up for early v5.10 merge. Signed-off-by: Ingo Molnar <mingo@kernel.org>
2020-10-12perf/core: Fix race in the perf_mmap_close() functionJiri Olsa
There's a possible race in perf_mmap_close() when checking ring buffer's mmap_count refcount value. The problem is that the mmap_count check is not atomic because we call atomic_dec() and atomic_read() separately. perf_mmap_close: ... atomic_dec(&rb->mmap_count); ... if (atomic_read(&rb->mmap_count)) goto out_put; <ring buffer detach> free_uid out_put: ring_buffer_put(rb); /* could be last */ The race can happen when we have two (or more) events sharing same ring buffer and they go through atomic_dec() and then they both see 0 as refcount value later in atomic_read(). Then both will go on and execute code which is meant to be run just once. The code that detaches ring buffer is probably fine to be executed more than once, but the problem is in calling free_uid(), which will later on demonstrate in related crashes and refcount warnings, like: refcount_t: addition on 0; use-after-free. ... RIP: 0010:refcount_warn_saturate+0x6d/0xf ... Call Trace: prepare_creds+0x190/0x1e0 copy_creds+0x35/0x172 copy_process+0x471/0x1a80 _do_fork+0x83/0x3a0 __do_sys_wait4+0x83/0x90 __do_sys_clone+0x85/0xa0 do_syscall_64+0x5b/0x1e0 entry_SYSCALL_64_after_hwframe+0x44/0xa9 Using atomic decrease and check instead of separated calls. Tested-by: Michael Petlan <mpetlan@redhat.com> Signed-off-by: Jiri Olsa <jolsa@kernel.org> Signed-off-by: Ingo Molnar <mingo@kernel.org> Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl> Acked-by: Namhyung Kim <namhyung@kernel.org> Acked-by: Wade Mealing <wmealing@redhat.com> Fixes: 9bb5d40cd93c ("perf: Fix mmap() accounting hole"); Link: https://lore.kernel.org/r/20200916115311.GE2301783@krava
2020-10-12Merge branch 'printk-rework' into for-linusPetr Mladek
2020-10-12ALSA: hda: fix jack detection with Realtek codecs when in D3Kai Vehmanen
In case HDA controller becomes active, but codec is runtime suspended, jack detection is not successful and no interrupt is raised. This has been observed with multiple Realtek codecs and HDA controllers from different vendors. Bug does not occur if both codec and controller are active, or both are in suspend. Bug can be easily hit on desktop systems with no built-in speaker. The problem can be fixed by powering up the codec once after every controller runtime resume. Even if codec goes back to suspend later, the jack detection will continue to work. Add a flag to 'hda_codec' to describe codecs that require this flow from the controller driver. Modify __azx_runtime_resume() to use pm_request_resume() to make the intent clearer. Mark all Realtek codecs with the new forced_resume flag. BugLink: https://bugzilla.kernel.org/show_bug.cgi?id=209379 Cc: Kailang Yang <kailang@realtek.com> Co-developed-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Signed-off-by: Kai-Heng Feng <kai.heng.feng@canonical.com> Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com> Cc: <stable@vger.kernel.org> Link: https://lore.kernel.org/r/20201012102704.794423-1-kai.vehmanen@linux.intel.com Signed-off-by: Takashi Iwai <tiwai@suse.de>
2020-10-12tomoyo: Loosen pathname/domainname validation.Tetsuo Handa
Since commit e2dc9bf3f5275ca3 ("umd: Transform fork_usermode_blob into fork_usermode_driver") started calling execve() on a program written in a local mount which is not connected to mount tree, tomoyo_realpath_from_path() started returning a pathname in "$fsname:/$pathname" format which violates TOMOYO's domainname rule that it must start with "<$namespace>" followed by zero or more repetitions of pathnames which start with '/'. Since $fsname must not contain '.' since commit 79c0b2df79eb56fc ("add filesystem subtype support"), tomoyo_correct_path() can recognize a token which appears '/' before '.' appears (e.g. proc:/self/exe ) as a pathname while rejecting a token which appears '.' before '/' appears (e.g. exec.realpath="/bin/bash" ) as a condition parameter. Therefore, accept domainnames which contain pathnames which do not start with '/' but contain '/' before '.' (e.g. <kernel> tmpfs:/bpfilter_umh ). Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
2020-10-12cpufreq: stats: Fix string format specifier mismatchViresh Kumar
Fix following warning: drivers/cpufreq/cpufreq_stats.c:63:10: warning: %d in format string (no. 1) requires 'int' but the argument type is 'unsigned int' Fixes: 40c3bd4cfa6f ("cpufreq: stats: Defer stats update to cpufreq_stats_record_transition()") Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2020-10-12thermal: core: Adding missing nlmsg_free() in thermal_genl_sampling_temp()Jing Xiangfeng
thermal_genl_sampling_temp() misses to call nlmsg_free() in an error path. Jump to out_free to fix it. Fixes: 1ce50e7d408ef2 ("thermal: core: genetlink support for events/cmd/sampling") Signed-off-by: Jing Xiangfeng <jingxiangfeng@huawei.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200929082652.59876-1-jingxiangfeng@huawei.com
2020-10-12thermal: ti-soc-thermal: Enable addition power managementAdam Ford
The bandgap sensor can be idled when the processor is too, but it isn't currently being done, so the power consumption of OMAP3 boards can elevated if the bangap sensor is enabled. This patch attempts to use some additional power management to idle the clock to the bandgap when not needed. Signed-off-by: Adam Ford <aford173@gmail.com> Reported-by: kernel test robot <lkp@intel.com> Tested-by: Andreas Kemnade <andreas@kemnade.info> # GTA04 Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200911123157.759379-1-aford173@gmail.com
2020-10-12thermal: sun8i: Add A100's THS controller supportYangtao Li
This patch add thermal sensor controller support for A100, which is similar to the previous ones. Signed-off-by: Yangtao Li <frank@allwinnertech.com> Acked-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/48cc75920b5c69027134626157089d8b94942711.1595572867.git.frank@allwinnertech.com
2020-10-12thermal: sun8i: add TEMP_CALIB_MASK for calibration data in ↵Yangtao Li
sun50i_h6_ths_calibrate For sun50i_h6_ths_calibrate(), the data read from nvmem needs a round of calculation. On the other hand, the newer SOC may store other data in the space other than 12bit sensor data. Add mask operation to read data to avoid conversion error. Signed-off-by: Yangtao Li <frank@allwinnertech.com> Acked-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/dcf98648c16aff7649ff82438bfce6caae3e176f.1595572867.git.frank@allwinnertech.com
2020-10-12dt-bindings: thermal: sun8i: Add binding for A100's THS controllerYangtao Li
Add a binding for A100's ths controller. Signed-off-by: Yangtao Li <frank@allwinnertech.com> Reviewed-by: Rob Herring <robh@kernel.org> Acked-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/8280af8ad82ed340c0ef1c171684aaad91600679.1595572867.git.frank@allwinnertech.com
2020-10-12thermal: cooling: Remove unused variable *tzzhuguangqing
1. devfreq_cooling.c: The variable *tz is not used in devfreq_cooling_get_requested_power(), devfreq_cooling_state2power() and devfreq_cooling_power2state(). 2. cpufreq_cooling.c: After 84fe2cab48590, the variable *tz is not used anymore in cpufreq_get_requested_power(), cpufreq_state2power() and cpufreq_power2state(). Remove the variable *tz. Signed-off-by: zhuguangqing <zhuguangqing@xiaomi.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200914071101.13575-1-zhuguangqing83@gmail.com
2020-10-12thermal: int340x: Add keep alive response methodSrinivas Pandruvada
When firmware requests keep alive response, send an event to user space to confirm by using imok sysfs entry. Create a new sysf entry called "imok". User space can write an integer, which results in execution of IMOK ACPI method of INT3400 thermal zone device. This results in sending response to firmware request for keep alive. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200915223650.406046-4-srinivas.pandruvada@linux.intel.com
2020-10-12thermal: core: Add new event for sending keep alive notificationsSrinivas Pandruvada
This event is sent by the platform firmware to confirm that user space thermal solution is alive. The response to this event from the user space thermal solution is platform specific. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200915223650.406046-3-srinivas.pandruvada@linux.intel.com
2020-10-12thermal: int340x: Provide notification for OEM variable changeSrinivas Pandruvada
When we receive ACPI notification for OEM variable change pass the notification to user space handler. This will avoid polling for OEM variable change from user space. Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200915223650.406046-2-srinivas.pandruvada@linux.intel.com
2020-10-12thermal: core: remove unnecessary mutex_init()Qinglang Miao
The mutex poweroff_lock is initialized statically. It is unnecessary to initialize by mutex_init(). Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200916062139.191233-1-miaoqinglang@huawei.com
2020-10-12thermal/idle_inject: Fix comment of idle_duration_us and name of latency_nszhuguangqing
The comment of idle_duration_us and the name of latency_ns can be misleading, so fix them. Signed-off-by: zhuguangqing <zhuguangqing@xiaomi.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200917073553.898-1-zhuguangqing83@gmail.com
2020-10-12thermal: Kconfig: Update description for RCAR_GEN3_THERMAL configLad Prabhakar
The rcar_gen3_thermal driver also supports RZ/G2 SoC's, update the description to reflect this. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Chris Paterson <Chris.Paterson2@renesas.com> Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200917152141.30070-1-prabhakar.mahadev-lad.rj@bp.renesas.com
2020-10-12thermal: stm32: simplify the return expression of stm_thermal_prepare()Qinglang Miao
Simplify the return expression. Signed-off-by: Qinglang Miao <miaoqinglang@huawei.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200921131107.93273-1-miaoqinglang@huawei.com
2020-10-12dt-bindings: thermal: rcar-gen3-thermal: Add r8a774e1 supportLad Prabhakar
Document RZ/G2H (R8A774E1) SoC bindings. Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Acked-by: Rob Herring <robh@kernel.org> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/1594811350-14066-3-git-send-email-prabhakar.mahadev-lad.rj@bp.renesas.com
2020-10-12thermal: rcar_thermal: Add missing braces to conditional statementGeert Uytterhoeven
According to Documentation/process/coding-style.rst, if one branch of a conditional statement needs braces, both branches should use braces. Fixes: bbcf90c0646ac797 ("thermal: Explicitly enable non-changing thermal zone devices") Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200819092716.3191-1-geert+renesas@glider.be
2020-10-12thermal: Use kobj_to_dev() instead of container_of()Tian Tao
Use kobj_to_dev() instead of container_of() Signed-off-by: Tian Tao <tiantao6@hisilicon.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/1597799671-11530-1-git-send-email-tiantao6@hisilicon.com
2020-10-12thermal: imx8mm: Use dev_err_probe() to simplify error handlingAnson Huang
dev_err_probe() can reduce code size, uniform error handling and record the defer probe reason etc., use it to simplify the code. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/1597129185-8460-2-git-send-email-Anson.Huang@nxp.com
2020-10-12thermal: imx: Use dev_err_probe() to simplify error handlingAnson Huang
dev_err_probe() can reduce code size, uniform error handling and record the defer probe reason etc., use it to simplify the code. Signed-off-by: Anson Huang <Anson.Huang@nxp.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/1597129185-8460-1-git-send-email-Anson.Huang@nxp.com
2020-10-12drivers: thermal: Kconfig: fix spelling mistake "acces" -> "access"Colin Ian King
There is a spelling mistake in the Kconfig text, fix it. Signed-off-by: Colin Ian King <colin.king@canonical.com> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org> Link: https://lore.kernel.org/r/20200810082739.48007-1-colin.king@canonical.com
2020-10-12MIPS: cpu-probe: remove MIPS_CPU_BP_GHIST option bitThomas Bogendoerfer
MIPS_CPU_BP_GHIST is only set two times and more or less immediately used in cpu-probe.c itself. Remove this option to make room in options word. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-10-12MIPS: cpu-probe: introduce exclusive R3k CPU probeThomas Bogendoerfer
Running a kernel on a R3k of machine definitly will never see one of the newer CPU cores. And since R3k system usually are low on memory we could save quite some kbytes: text data bss dec hex filename 15070 88 32 15190 3b56 arch/mips/kernel/cpu-probe.o 844 4 16 864 360 arch/mips/kernel/cpu-r3k-probe.o Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-10-12MIPS: cpu-probe: move fpu probing/handling into its own fileThomas Bogendoerfer
cpu-probe.c has grown when supporting more and more CPUs and there are use cases where probing for all the CPUs isn't useful like running on a R3k system. But still the fpu handling is nearly the same. For sharing put the fpu code into it's own file. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-10-12MIPS: replace add_memory_region with memblockThomas Bogendoerfer
add_memory_region was the old interface for registering memory and was already changed to used memblock internaly. Replace it by directly calling memblock functions. Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-10-12MIPS: Loongson64: Clean up numa.cTiezhu Yang
(1) Replace nid_to_addroffset() with nid_to_addrbase() and then remove the related useless code. (2) Since end_pfn = start_pfn + node_psize, use "node_psize" instead of "end_pfn - start_pfn" to avoid the redundant calculation. (3) After commit 6fbde6b492df ("MIPS: Loongson64: Move files to the top-level directory"), CONFIG_ZONE_DMA32 is always set for Loongson64 due to MACH_LOONGSON64 selects ZONE_DMA32, so no need to use ifdef any more, just remove it. Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Reviewed-by: Jiaxun Yang <jiaxun.yang@flygoat.com> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
2020-10-12MIPS: Loongson64: Select SMP in Kconfig to avoid build errorTiezhu Yang
In the current code, CONFIG_SMP can be set as N by user on the Loongson platform, then there exists the following build error under !CONFIG_SMP: CC arch/mips/kernel/asm-offsets.s In file included from ./include/linux/gfp.h:9:0, from ./include/linux/xarray.h:14, from ./include/linux/radix-tree.h:18, from ./include/linux/fs.h:15, from ./include/linux/compat.h:17, from arch/mips/kernel/asm-offsets.c:12: ./include/linux/topology.h: In function 'numa_node_id': ./include/linux/topology.h:119:2: error: implicit declaration of function 'cpu_logical_map' [-Werror=implicit-function-declaration] return cpu_to_node(raw_smp_processor_id()); ^ cc1: some warnings being treated as errors scripts/Makefile.build:117: recipe for target 'arch/mips/kernel/asm-offsets.s' failed make[1]: *** [arch/mips/kernel/asm-offsets.s] Error 1 Select SMP in Kconfig to avoid the above build error and then remove CONFIG_SMP=y in loongson3_defconfig. Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn> Signed-off-by: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
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