- 24 May, 2017 12 commits
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Geert Uytterhoeven authored
Add a new R-Car E2 Clock Pulse Generator / Module Standby and Software Reset driver, using the CPG/MSSR driver core. This will enable support for module resets, which are not supported by the existing driver. The old driver can still be used through a Kconfig option, to preserve backward compatibility with old DTBs. Signed-off-by:Geert Uytterhoeven <geert+renesas@glider.be>
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Geert Uytterhoeven authored
Add a new R-Car V2H Clock Pulse Generator / Module Standby and Software Reset driver, using the CPG/MSSR driver core. This will enable support for module resets, which are not supported by the existing driver. The old driver can still be used through a Kconfig option, to preserve backward compatibility with old DTBs. Signed-off-by: -
Geert Uytterhoeven authored
Add a new R-Car M2-W/N Clock Pulse Generator / Module Standby and Software Reset driver, using the CPG/MSSR driver core. This will enable support for module resets, which are not supported by the existing driver. The old driver can still be used through a Kconfig option, to preserve backward compatibility with old DTBs. Signed-off-by: -
Geert Uytterhoeven authored
Add a new R-Car H2 Clock Pulse Generator / Module Standby and Software Reset driver, using the CPG/MSSR driver core. This will enable support for module resets, which are not supported by the existing driver. The old driver can still be used through a Kconfig option, to preserve backward compatibility with old DTBs. Signed-off-by: -
Geert Uytterhoeven authored
Add all R-Car E2 Clock Pulse Generator Core Clock Outputs, as listed in Table 7.2d ("List of Clocks [R-Car E2]") of the R-Car Gen2 Hardware User's Manual rev. 2.00. Signed-off-by:Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
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Geert Uytterhoeven authored
Add all R-Car M2-N Clock Pulse Generator Core Clock Outputs, as listed in Table 7.2b ("List of Clocks [R-Car M2-W/M2-N]") of the R-Car Gen2 Hardware User's Manual rev. 2.00. Signed-off-by: -
Geert Uytterhoeven authored
Add all R-Car V2H Clock Pulse Generator Core Clock Outputs, as listed in Table 7.2c ("List of Clocks [R-Car V2H]") of the R-Car Gen2 Hardware User's Manual rev. 2.00. Signed-off-by: -
Geert Uytterhoeven authored
Add all R-Car M2-W Clock Pulse Generator Core Clock Outputs, as listed in Table 7.2b ("List of Clocks [R-Car M2-W/M2-N]") of the R-Car Gen2 Hardware User's Manual rev. 2.00. Signed-off-by: -
Geert Uytterhoeven authored
Add all R-Car H2 Clock Pulse Generator Core Clock Outputs, as listed in Table 7.2a ("List of Clocks [R-Car H2]") of the R-Car Gen2 Hardware User's Manual rev. 2.00. Signed-off-by: -
Geert Uytterhoeven authored
Document use of the Renesas Clock Pulse Generator / Module Standby and Software Reset DT Bindings for various member of the R-Car Gen2 family (H2, M2-W, V2H, M2-N, and E2). Signed-off-by:
Rob Herring <robh@kernel.org>
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Geert Uytterhoeven authored
The goals are to: - Allow precise control over and automatic selection of which (sub)drivers are used for which SoC (which may change in the future), - Allow adding support for new SoCs easily, - Allow compile-testing of all (sub)drivers, - Keep driver selection logic in the subsystem-specific Kconfig, independent from the architecture-specific Kconfig (i.e. no "select" from arch/arm64/Kconfig.platforms), to avoid dependencies. This is implemented by: - Introducing Kconfig symbols for all drivers and sub-drivers, - Introducing the Kconfig symbol CLK_RENESAS, which is enabled automatically when building for a Renesas ARM platform, and which enables all required drivers without interaction of the user, based on SoC-specific ARCH_* symbols, - Allowing the user to enable any Kconfig symbol manually if COMPILE_TEST is enabled, - Using the new Kconfig symbols instead of the ARCH_* symbols to control compilation in the Makefile, - Always entering drivers/clk/renesas/ during the build. Note that currently not all (sub)drivers are enabled for compile-testing, as they depend on independent fixes in other subsystems. Signed-off-by:Simon Horman <horms+renesas@verge.net.au> Acked-by:
Stephen Boyd <sboyd@codeaurora.org>
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Geert Uytterhoeven authored
Coccinelle warns: drivers/clk/renesas/renesas-cpg-mssr.c:323:14-21: ERROR: PTR_ERR applied after initialization to constant on line 260 Initialize clk using ERR_PTR(-ENOTSUPP) instead of NULL to fix this. Reported-by:kbuild test robot <fengguang.wu@intel.com> Signed-off-by:
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- 15 May, 2017 20 commits
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Geert Uytterhoeven authored
Cfr. the errata of April 14, 2017, for the R-Car Gen3 Hardware Manual Rev. 0.53E. These have no user-visible effect, as the clock frequencies stay the same. Fixes: 5573d194 ("clk: renesas: r8a7795: Add support for R-Car H3 ES2.0") Signed-off-by:
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Geert Uytterhoeven authored
The pm_subsys_data.clock_list member exists only if CONFIG_PM_CLK=y. Hence direct accesses to this field break compile-testing on platforms where CONFIG_PM_CLK=n. To fix this, use the pm_clk_no_clocks() helper instead, for which a dummy version is provided if CONFIG_PM_CLK=n. Signed-off-by:
Simon Horman <simon.horman@netronome.com>
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Geert Uytterhoeven authored
R-Car V2H does not have "DIV6" programmable clocks, hence there is no need to build clk-div6.o. Signed-off-by:
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Takeshi Kihara authored
Add the "intc-ex" clock to the R8A7796 CPG MSSR driver. According to information from the hardware team the INTC-EX parent clock is CP. The next data sheet version will include this information. [takeshi.kihara.df: Ported from commit f099aa07 ("clk: shmobile: r8a7795: Add INTC-EX clock") to drivers/clk/renesas/r8a7796-cpg-mssr.c] Signed-off-by:
Takeshi Kihara <takeshi.kihara.df@renesas.com> Signed-off-by:
Yoshihiro Kaneko <ykaneko0929@gmail.com> Signed-off-by:
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Harunobu Kurokawa authored
This patch adds PCIEC{0,1} clocks for R8A7796 SoC. Signed-off-by:Harunobu Kurokawa <harunobu.kurokawa.dn@renesas.com> Signed-off-by:
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Ryo Kodama authored
This patch adds PWM clock for PWM. Signed-off-by:
Ryo Kodama <ryo.kodama.vz@renesas.com> Signed-off-by:
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Kazuya Mizuguchi authored
This patch adds HS-USB-IF clock for R8A7796 SoC. Signed-off-by:
Kazuya Mizuguchi <kazuya.mizuguchi.ks@renesas.com> Signed-off-by:
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Kazuya Mizuguchi authored
This patch adds adds SCU(DVC{0,1}) clocks for R8A7796 SoC. Signed-off-by: -
Kazuya Mizuguchi authored
This patch adds SCU(all), SCU(SRC{0,1,2,3,4,5,6,7,8,9}), SCU(CTU00, CTU01, CTU02, CTU03, MIX0) and SCU (CTU10, CTU11, CTU12, CTU13, MIX1) clocks for R8A7796 SoC. Signed-off-by: -
Kazuya Mizuguchi authored
This patch adds SSI(all) and SSI{0,1,2,3,4,5,6,7,8,9} clocks for R8A7796 SoC. Signed-off-by: -
Hiromitsu Yamasaki authored
This patch adds USB-DMAC{0,1} clocks for R8A7796 SoC. Signed-off-by:Hiromitsu Yamasaki <hiromitsu.yamasaki.ym@renesas.com> Signed-off-by:
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Hiromitsu Yamasaki authored
This patch adds A-DMAC{0,1} clocks for R8A7796 SoC. Signed-off-by: -
Kazuya Mizuguchi authored
This patch adds EHCI/OHCI{0,1} clocks for R8A7796 SoC. Signed-off-by: -
Koji Matsuoka authored
This patch adds HDMI-IF0 clock for R8A7796 SoC. Signed-off-by:
Koji Matsuoka <koji.matsuoka.xm@renesas.com> Signed-off-by:
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Takeshi Kihara authored
This patch adds valid HS-USB ch3 clock from R8A7795 ES2.0 SoC. Signed-off-by:
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Takeshi Kihara authored
This patch supports the clock of USB-DMAC ch3 module added from R8A7795 ES2.0 SoC. Signed-off-by:
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Takeshi Kihara authored
This patch supports the clock of EHCI/OHCI ch3 module added from R8A7795 ES2.0 SoC. Signed-off-by:
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Geert Uytterhoeven authored
According to tables 7.5b and 7.6b of the RZ/G Series Hardware User's Manual Rev.1.00, MD19=0 is a prohibited setting. Hence stop looking at MD19, and remove all PLL configurations for MD19=0. Fixes: 9127d54b ("clk: renesas: cpg-mssr: Add R8A7745 support") Signed-off-by:
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Geert Uytterhoeven authored
RZ/G1E does not have the SCU-SRC[0789] modules and module clocks. Fixes: 9127d54b ("clk: renesas: cpg-mssr: Add R8A7745 support") Signed-off-by:
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Geert Uytterhoeven authored
R-Car V2H and E2 do not have the PLL0CR register, but use a fixed multiplier (depending on mode pins) and divider. This corrects the clock rate of "pll0" (PLL0 VCO after post divider) on R-Car V2H and E2 from 1.5 GHz to 1 GHz. Inspired by Sergei Shtylyov's work for the common R-Car Gen2 and RZ/G Clock Pulse Generator support core. Fixes: 7c4163aa ("ARM: dts: r8a7792: initial SoC device tree") Fixes: 0dce5454 ("ARM: shmobile: Initial r8a7794 SoC device tree") Signed-off-by:
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- 13 May, 2017 5 commits
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Linus Torvalds authored
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git://git.kernel.org/pub/scm/linux/kernel/git/dtor/inputLinus Torvalds authored
Pull some more input subsystem updates from Dmitry Torokhov: "An updated xpad driver with a few more recognized device IDs, and a new psxpad-spi driver, allowing connecting Playstation 1 and 2 joypads via SPI bus" * 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input: Input: cros_ec_keyb - remove extraneous 'const' Input: add support for PlayStation 1/2 joypads connected via SPI Input: xpad - add USB IDs for Mad Catz Brawlstick and Razer Sabertooth Input: xpad - sync supported devices with xboxdrv Input: xpad - sort supported devices by USB ID
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git://git.infradead.org/linux-ubifsLinus Torvalds authored
Pull UBI/UBIFS updates from Richard Weinberger: - new config option CONFIG_UBIFS_FS_SECURITY - minor improvements - random fixes * tag 'upstream-4.12-rc1' of git://git.infradead.org/linux-ubifs: ubi: Add debugfs file for tracking PEB state ubifs: Fix a typo in comment of ioctl2ubifs & ubifs2ioctl ubifs: Remove unnecessary assignment ubifs: Fix cut and paste error on sb type comparisons ubi: fastmap: Fix slab corruption ubifs: Add CONFIG_UBIFS_FS_SECURITY to disable/enable security labels ubi: Make mtd parameter readable ubi: Fix section mismatch
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git://git.kernel.org/pub/scm/linux/kernel/git/rw/umlLinus Torvalds authored
Pull UML fixes from Richard Weinberger: "No new stuff, just fixes" * 'for-linus-4.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/uml: um: Add missing NR_CPUS include um: Fix to call read_initrd after init_bootmem um: Include kbuild.h instead of duplicating its macros um: Fix PTRACE_POKEUSER on x86_64 um: Set number of CPUs um: Fix _print_addr()
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Linus Torvalds authored
Merge misc fixes from Andrew Morton: "15 fixes" * emailed patches from Andrew Morton <akpm@linux-foundation.org>: mm, docs: update memory.stat description with workingset* entries mm: vmscan: scan until it finds eligible pages mm, thp: copying user pages must schedule on collapse dax: fix PMD data corruption when fault races with write dax: fix data corruption when fault races with write ext4: return to starting transaction in ext4_dax_huge_fault() mm: fix data corruption due to stale mmap reads dax: prevent invalidation of mapped DAX entries Tigran has moved mm, vmalloc: fix vmalloc users tracking properly mm/khugepaged: add missed tracepoint for collapse_huge_page_swapin gcov: support GCC 7.1 mm, vmstat: Remove spurious WARN() during zoneinfo print time: delete current_fs_time() hwpoison, memcg: forcibly uncharge LRU pages
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- 12 May, 2017 3 commits
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Roman Gushchin authored
Commit 4b4cea91691d ("mm: vmscan: fix IO/refault regression in cache workingset transition") introduced three new entries in memory stat file: - workingset_refault - workingset_activate - workingset_nodereclaim This commit adds a corresponding description to the cgroup v2 docs. Link: http://lkml.kernel.org/r/1494530293-31236-1-git-send-email-guro@fb.comSigned-off-by:Roman Gushchin <guro@fb.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Michal Hocko <mhocko@kernel.org> Cc: Vladimir Davydov <vdavydov.dev@gmail.com> Cc: Tejun Heo <tj@kernel.org> Cc: Li Zefan <lizefan@huawei.com> Signed-off-by:
Andrew Morton <akpm@linux-foundation.org> Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
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Minchan Kim authored
Although there are a ton of free swap and anonymous LRU page in elgible zones, OOM happened. balloon invoked oom-killer: gfp_mask=0x17080c0(GFP_KERNEL_ACCOUNT|__GFP_ZERO|__GFP_NOTRACK), nodemask=(null), order=0, oom_score_adj=0 CPU: 7 PID: 1138 Comm: balloon Not tainted 4.11.0-rc6-mm1-zram-00289-ge228d67e9677-dirty #17 Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS Ubuntu-1.8.2-1ubuntu1 04/01/2014 Call Trace: oom_kill_process+0x21d/0x3f0 out_of_memory+0xd8/0x390 __alloc_pages_slowpath+0xbc1/0xc50 __alloc_pages_nodemask+0x1a5/0x1c0 pte_alloc_one+0x20/0x50 __pte_alloc+0x1e/0x110 __handle_mm_fault+0x919/0x960 handle_mm_fault+0x77/0x120 __do_page_fault+0x27a/0x550 trace_do_page_fault+0x43/0x150 do_async_page_fault+0x2c/0x90 async_page_fault+0x28/0x30 Mem-Info: active_anon:424716 inactive_anon:65314 isolated_anon:0 active_file:52 inactive_file:46 isolated_file:0 unevictable:0 dirty:27 writeback:0 unstable:0 slab_reclaimable:3967 slab_unreclaimable:4125 mapped:133 shmem:43 pagetables:1674 bounce:0 free:4637 free_pcp:225 free_cma:0 Node 0 active_anon:1698864kB inactive_anon:261256kB active_file:208kB inactive_file:184kB unevictable:0kB isolated(anon):0kB isolated(file):0kB mapped:532kB dirty:108kB writeback:0kB shmem:172kB writeback_tmp:0kB unstable:0kB all_unreclaimable? no DMA free:7316kB min:32kB low:44kB high:56kB active_anon:8064kB inactive_anon:0kB active_file:0kB inactive_file:0kB unevictable:0kB writepending:0kB present:15992kB managed:15908kB mlocked:0kB slab_reclaimable:464kB slab_unreclaimable:40kB kernel_stack:0kB pagetables:24kB bounce:0kB free_pcp:0kB local_pcp:0kB free_cma:0kB lowmem_reserve[]: 0 992 992 1952 DMA32 free:9088kB min:2048kB low:3064kB high:4080kB active_anon:952176kB inactive_anon:0kB active_file:36kB inactive_file:0kB unevictable:0kB writepending:88kB present:1032192kB managed:1019388kB mlocked:0kB slab_reclaimable:13532kB slab_unreclaimable:16460kB kernel_stack:3552kB pagetables:6672kB bounce:0kB free_pcp:56kB local_pcp:24kB free_cma:0kB lowmem_reserve[]: 0 0 0 959 Movable free:3644kB min:1980kB low:2960kB high:3940kB active_anon:738560kB inactive_anon:261340kB active_file:188kB inactive_file:640kB unevictable:0kB writepending:20kB present:1048444kB managed:1010816kB mlocked:0kB slab_reclaimable:0kB slab_unreclaimable:0kB kernel_stack:0kB pagetables:0kB bounce:0kB free_pcp:832kB local_pcp:60kB free_cma:0kB lowmem_reserve[]: 0 0 0 0 DMA: 1*4kB (E) 0*8kB 18*16kB (E) 10*32kB (E) 10*64kB (E) 9*128kB (ME) 8*256kB (E) 2*512kB (E) 2*1024kB (E) 0*2048kB 0*4096kB = 7524kB DMA32: 417*4kB (UMEH) 181*8kB (UMEH) 68*16kB (UMEH) 48*32kB (UMEH) 14*64kB (MH) 3*128kB (M) 1*256kB (H) 1*512kB (M) 2*1024kB (M) 0*2048kB 0*4096kB = 9836kB Movable: 1*4kB (M) 1*8kB (M) 1*16kB (M) 1*32kB (M) 0*64kB 1*128kB (M) 2*256kB (M) 4*512kB (M) 1*1024kB (M) 0*2048kB 0*4096kB = 3772kB 378 total pagecache pages 17 pages in swap cache Swap cache stats: add 17325, delete 17302, find 0/27 Free swap = 978940kB Total swap = 1048572kB 524157 pages RAM 0 pages HighMem/MovableOnly 12629 pages reserved 0 pages cma reserved 0 pages hwpoisoned [ pid ] uid tgid total_vm rss nr_ptes nr_pmds swapents oom_score_adj name [ 433] 0 433 4904 5 14 3 82 0 upstart-udev-br [ 438] 0 438 12371 5 27 3 191 -1000 systemd-udevd With investigation, skipping page of isolate_lru_pages makes reclaim void because it returns zero nr_taken easily so LRU shrinking is effectively nothing and just increases priority aggressively. Finally, OOM happens. The problem is that get_scan_count determines nr_to_scan with eligible zones so although priority drops to zero, it couldn't reclaim any pages if the LRU contains mostly ineligible pages. get_scan_count: size = lruvec_lru_size(lruvec, lru, sc->reclaim_idx); size = size >> sc->priority; Assumes sc->priority is 0 and LRU list is as follows. N-N-N-N-H-H-H-H-H-H-H-H-H-H-H-H-H-H-H-H (Ie, small eligible pages are in the head of LRU but others are almost ineligible pages) In that case, size becomes 4 so VM want to scan 4 pages but 4 pages from tail of the LRU are not eligible pages. If get_scan_count counts skipped pages, it doesn't reclaim any pages remained after scanning 4 pages so it ends up OOM happening. This patch makes isolate_lru_pages try to scan pages until it encounters eligible zones's pages. [akpm@linux-foundation.org: clean up mind-bending `for' statement. Tweak comment text] Fixes: 3db65812 ("Revert "mm, vmscan: account for skipped pages as a partial scan"") Link: http://lkml.kernel.org/r/1494457232-27401-1-git-send-email-minchan@kernel.orgSigned-off-by:Minchan Kim <minchan@kernel.org> Acked-by:
Michal Hocko <mhocko@suse.com> Acked-by:
Johannes Weiner <hannes@cmpxchg.org> Cc: Mel Gorman <mgorman@techsingularity.net> Signed-off-by:
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David Rientjes authored
We have encountered need_resched warnings in __collapse_huge_page_copy() while doing {clear,copy}_user_highpage() over HPAGE_PMD_NR source pages. mm->mmap_sem is held for write, but the iteration is well bounded. Reschedule as needed. Link: http://lkml.kernel.org/r/alpine.DEB.2.10.1705101426380.109808@chino.kir.corp.google.comSigned-off-by:David Rientjes <rientjes@google.com> Acked-by:
Vlastimil Babka <vbabka@suse.cz> Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com> Cc: Johannes Weiner <hannes@cmpxchg.org> Cc: Mel Gorman <mgorman@techsingularity.net> Signed-off-by:
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