- 07 Aug, 2017 40 commits
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David Carrillo-Cisneros authored
[ Upstream commit 74545f63 ] The conversion of Intel PMU drivers into modules did not include reference counting. The machine will crash when attempting to access deleted code if an event from a module PMU is started and the module removed before the event is destroyed. i.e. this crashes the machine: $ insmod intel-rapl-perf.ko $ perf stat -e power/energy-cores/ -C 0 & $ rmmod intel-rapl-perf.ko Set THIS_MODULE to pmu->module in Intel module PMUs so that generic code can handle reference counting and deny rmmod while an event still exists. Signed-off-by:
David Carrillo-Cisneros <davidcc@google.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Arnaldo Carvalho de Melo <acme@redhat.com> Cc: Borislav Petkov <bp@suse.de> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Kan Liang <kan.liang@intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Paul Turner <pjt@google.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> Cc: Stephane Eranian <eranian@google.com> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/1482455860-116269-1-git-send-email-davidcc@google.comSigned-off-by:
Ingo Molnar <mingo@kernel.org> Signed-off-by:
Sasha Levin <alexander.levin@verizon.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Andy Shevchenko authored
[ Upstream commit 159d3726 ] The current implementation supports only Intel Merrifield platforms. Don't mess with the rest of the Intel MID family by not registering device with wrong properties. Signed-off-by:
Andy Shevchenko <andriy.shevchenko@linux.intel.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20170102092450.87229-1-andriy.shevchenko@linux.intel.comSigned-off-by:
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Ioan-Adrian Ratiu authored
[ Upstream commit 13a6c832 ] Testing EP_FLAG_RUNNING in snd_complete_urb() before running the completion logic allows us to save a few cpu cycles by returning early, skipping the pending urb in case the stream was stopped; the stop logic handles the urb and sets the completion callbacks to NULL. Signed-off-by:
Ioan-Adrian Ratiu <adi@adirat.com> Signed-off-by:
Takashi Iwai <tiwai@suse.de> Signed-off-by:
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Yuriy Kolerov authored
[ Upstream commit e51d5d02 ] It is necessary to call entry/exit functions for parent interrupt controllers for proper masking/unmasking of interrupt lines. Signed-off-by:
Yuriy Kolerov <yuriy.kolerov@synopsys.com> Signed-off-by:
Vineet Gupta <vgupta@synopsys.com> Signed-off-by:
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Sergei Shtylyov authored
[ Upstream commit 71eae1ca ] The RX descriptor word 0 on SH7734 has the RFS[9:0] field in bits 16-25 (bits 0-15 usually used for that are occupied by the packet checksum). Thus we need to set the 'shift_rd0' field in the SH7734 SoC data... Fixes: f0e81fec ("net: sh_eth: Add support SH7734") Signed-off-by:
Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by:
David S. Miller <davem@davemloft.net> Signed-off-by:
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Caleb Crome authored
[ Upstream commit 4ee437fb ] The fsl_ssi fifo watermark is by default set to 2 free spaces (i.e. activate DMA on FIFO when only 2 spaces are left.) This means the DMA must service the fifo within 2 audio samples, which is just not enough time for many use cases with high data rate. In many configurations the audio channel slips (causing l/r swap in stereo configurations, or channel slipping in multi-channel configurations). This patch gives more breathing room and allows the SSI to operate reliably by changing the fifio refill watermark to 8. There is no change in behavior for older chips (with an 8-deep fifo). Only the newer chips with a 15-deep fifo get the new behavior. I suspect a new fifo depth setting could be optimized on the older chips too, but I have not tested. Signed-off-by:
Caleb Crome <caleb@crome.org> Reviewed-by:
Fabio Estevam <fabio.estevam@nxp.com> Signed-off-by:
Mark Brown <broonie@kernel.org> Signed-off-by:
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Peter Chen authored
[ Upstream commit 63dfb0da ] The USB core may call reset_resume when it fails to resume asix device. And USB core can recovery this abnormal resume at low level driver, the same .resume at asix driver can work too. Add .reset_resume can avoid disconnecting after backing from system resume, and NFS can still be mounted after this commit. Signed-off-by:
Peter Chen <peter.chen@nxp.com> Signed-off-by:
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Daniel Schultz authored
[ Upstream commit 14ba9728 ] All i.MX6 SoCs have an OCOTP Controller with 4kbit fuses. The i.MX6SL is an exception and has only 2kbit fuses. In the TRM for the i.MX6DQ (IMX6QDRM - Rev 2, 06/2014) the fuses size is described in chapter 46.1.1 with: "32-bit word restricted program and read to 4Kbits of eFuse OTP(512x8)." In the TRM for the i.MX6SL (IMX6SLRM - Rev 2, 06/2015) the fuses size is described in chapter 34.1.1 with: "32-bit word restricted program and read to 2 kbit of eFuse OTP(128x8)." Since the Freescale Linux kernel OCOTP driver works with a fuses size of 2 kbit for the i.MX6SL, it looks like the TRM is wrong and the formula to calculate the correct fuses size has to be 256x8. Signed-off-by:
Daniel Schultz <d.schultz@phytec.de> Signed-off-by:
Srinivas Kandagatla <srinivas.kandagatla@linaro.org> Signed-off-by:
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Mark Rutland authored
[ Upstream commit 6ef4fb38 ] Recent changes made KERN_CONT mandatory for continued lines. In the absence of KERN_CONT, a newline may be implicit inserted by the core printk code. In show_pte, we (erroneously) use printk without KERN_CONT for continued prints, resulting in output being split across a number of lines, and not matching the intended output, e.g. [ff000000000000] *pgd=00000009f511b003 , *pud=00000009f4a80003 , *pmd=0000000000000000 Fix this by using pr_cont() for all the continuations. Acked-by:
Will Deacon <will.deacon@arm.com> Signed-off-by:
Mark Rutland <mark.rutland@arm.com> Signed-off-by:
Catalin Marinas <catalin.marinas@arm.com> Signed-off-by:
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Arvind Yadav authored
[ Upstream commit e19f32da ] Here, pci_iomap can fail, handle this case release selected pci regions and return -ENOMEM. Signed-off-by:
Arvind Yadav <arvind.yadav.cs@gmail.com> Signed-off-by:
Alex Williamson <alex.williamson@redhat.com> Signed-off-by:
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Arvind Yadav authored
[ Upstream commit 4dcd19bf ] Here, If devm_ioremap will fail. It will return NULL. Kernel can run into a NULL-pointer dereference. This error check will avoid NULL pointer dereference. Signed-off-by:
Yoichi Yuasa <yuasa@linux-mips.org> Signed-off-by:
Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Signed-off-by:
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Arnaldo Carvalho de Melo authored
[ Upstream commit 7934c98a ] Markus reported that perf segfaults when reading /sys/kernel/notes from a kernel linked with GNU gold, due to what looks like a gold bug, so do some bounds checking to avoid crashing in that case. Reported-by:
Markus Trippelsdorf <markus@trippelsdorf.de> Report-Link: http://lkml.kernel.org/r/20161219161821.GA294@x4 Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: David Ahern <dsahern@gmail.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/n/tip-ryhgs6a6jxvz207j2636w31c@git.kernel.orgSigned-off-by:
Arnaldo Carvalho de Melo <acme@redhat.com> Signed-off-by:
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Arnaldo Carvalho de Melo authored
[ Upstream commit 30a9c644 ] Those are binaries as well, so should be installed by: make -C tools/perf install-bin' too. Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Daniel Bristot de Oliveira <bristot@redhat.com> Cc: Jiri Olsa <jolsa@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Steven Rostedt <rostedt@goodmis.org> Link: http://lkml.kernel.org/n/tip-3841b37u05evxrs1igkyu6ks@git.kernel.orgSigned-off-by:
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Steffen Klassert authored
commit 4c86d777 upstream. On IPv4-mapped IPv6 addresses sk_family is AF_INET6, but the flow informations are created based on AF_INET. So the routing set up 'struct flowi4' but we try to access 'struct flowi6' what leads to an out of bounds access. Fix this by using the family we get with the dst_entry, like we do it for the standard policy lookup. Reported-by:
Dmitry Vyukov <dvyukov@google.com> Tested-by:
Steffen Klassert <steffen.klassert@secunet.com> Signed-off-by:
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Daniel Bristot de Oliveira authored
[ Upstream commit 07485918 ] Currently, the sched:sched_switch tracepoint reports deadline tasks with priority -1. But when reading the trace via perf script I've got the following output: # ./d & # (d is a deadline task, see [1]) # perf record -e sched:sched_switch -a sleep 1 # perf script ... swapper 0 [000] 2146.962441: sched:sched_switch: swapper/0:0 [120] R ==> d:2593 [4294967295] d 2593 [000] 2146.972472: sched:sched_switch: d:2593 [4294967295] R ==> g:2590 [4294967295] The task d reports the wrong priority [4294967295]. This happens because the "int prio" is stored in an unsigned long long val. Although it is set as a %lld, as int is shorter than unsigned long long, trace_seq_printf prints it as a positive number. The fix is just to cast the val as an int, and print it as a %d, as in the sched:sched_switch tracepoint's "format". The output with the fix is: # ./d & # perf record -e sched:sched_switch -a sleep 1 # perf script ... swapper 0 [000] 4306.374037: sched:sched_switch: swapper/0:0 [120] R ==> d:10941 [-1] d 10941 [000] 4306.383823: sched:sched_switch: d:10941 [-1] R ==> swapper/0:0 [120] [1] d.c --- #include <stdio.h> #include <unistd.h> #include <sys/syscall.h> #include <linux/types.h> #include <linux/sched.h> struct sched_attr { __u32 size, sched_policy; __u64 sched_flags; __s32 sched_nice; __u32 sched_priority; __u64 sched_runtime, sched_deadline, sched_period; }; int sched_setattr(pid_t pid, const struct sched_attr *attr, unsigned int flags) { return syscall(__NR_sched_setattr, pid, attr, flags); } int main(void) { struct sched_attr attr = { .size = sizeof(attr), .sched_policy = SCHED_DEADLINE, /* This creates a 10ms/30ms reservation */ .sched_runtime = 10 * 1000 * 1000, .sched_period = attr.sched_deadline = 30 * 1000 * 1000, }; if (sched_setattr(0, &attr, 0) < 0) { perror("sched_setattr"); return -1; } for(;;); } --- Committer notes: Got the program from the provided URL, http://bristot.me/lkml/d.c, trimmed it and included in the cset log above, so that we have everything needed to test it in one place. Signed-off-by:
Daniel Bristot de Oliveira <bristot@redhat.com> Acked-by:
Steven Rostedt <rostedt@goodmis.org> Tested-by:
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Jiandi An authored
[ Upstream commit 0b47a6bd ] Ensure all reserved fields of xatp are zero before making hypervisor call to XEN in xen_map_device_mmio(). xenmem_add_to_physmap_one() in XEN fails the mapping request if extra.res reserved field in xatp is not zero for XENMAPSPACE_dev_mmio request. Signed-off-by:
Jiandi An <anjiandi@codeaurora.org> Reviewed-by:
Stefano Stabellini <sstabellini@kernel.org> Signed-off-by:
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Liu Bo authored
[ Upstream commit c2931667 ] Currently how btrfs dio deals with split dio write is not good enough if dio write is split into several segments due to the lack of contiguous space, a large dio write like 'dd bs=1G count=1' can end up with incorrect outstanding_extents counter and endio would complain loudly with an assertion. This fixes the problem by compensating the outstanding_extents counter in inode if a large dio write gets split. Reported-by:
Anand Jain <anand.jain@oracle.com> Tested-by:
Liu Bo <bo.li.liu@oracle.com> Signed-off-by:
David Sterba <dsterba@suse.com> Signed-off-by:
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Sabrina Dubroca authored
[ Upstream commit 096de2f8 ] When VXLAN offloading is enabled, be_features_check() tries to check if an encapsulated packet is indeed a VXLAN packet. The check is not strict enough, and considers any UDP-encapsulated ethernet frame with a 8-byte tunnel header as being VXLAN. Unfortunately, both GENEVE and VXLAN-GPE have a 8-byte header, so they get through this check. Force the UDP destination port to be the one that has been offloaded to hardware. Without this, GENEVE-encapsulated packets can end up having an incorrect checksum when both a GENEVE and a VXLAN (offloaded) tunnel are configured. This is similar to commit a547224d ("mlx4e: Do not attempt to offload VXLAN ports that are unrecognized"). Signed-off-by:
Sabrina Dubroca <sd@queasysnail.net> Signed-off-by:
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Liu Bo authored
[ Upstream commit 781feef7 ] While checking INODE_REF/INODE_EXTREF for a corner case, we may acquire a different inode's log_mutex with holding the current inode's log_mutex, and lockdep has complained this with a possilble deadlock warning. Fix this by using mutex_lock_nested() when processing the other inode's log_mutex. Reviewed-by:
Filipe Manana <fdmanana@suse.com> Signed-off-by:
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Liu Bo authored
[ Upstream commit e321f8a8 ] If @block_group is not @used_bg, it'll try to get @used_bg's lock without droping @block_group 's lock and lockdep has throwed a scary deadlock warning about it. Fix it by using down_read_nested. Signed-off-by:
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David Lechner authored
[ Upstream commit 43aef5c2 ] This fixes an error message that was probably copied and pasted. The same message is used for both the in and out endpoints, so it makes it impossible to know which one actually failed because both cases say "IN". Make the out endpoint error message say "OUT". Signed-off-by:
David Lechner <david@lechnology.com> Signed-off-by:
Felipe Balbi <felipe.balbi@linux.intel.com> Signed-off-by:
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Rafael J. Wysocki authored
[ Upstream commit c2a6bbaf ] The way acpi_find_child_device() works currently is that, if there are two (or more) devices with the same _ADR value in the same namespace scope (which is not specifically allowed by the spec and the OS behavior in that case is not defined), the first one of them found to be present (with the help of _STA) will be returned. This covers the majority of cases, but is not sufficient if some of the devices in question have a _HID (or _CID) returning some valid ACPI/PNP device IDs (which is disallowed by the spec) and the ASL writers' expectation appears to be that the OS will match devices without a valid ACPI/PNP device ID against a given bus address first. To cover this special case as well, modify find_child_checks() to prefer devices without ACPI/PNP device IDs over devices that have them. Suggested-by:
Mika Westerberg <mika.westerberg@linux.intel.com> Signed-off-by:
Rafael J. Wysocki <rafael.j.wysocki@intel.com> Tested-by:
Hans de Goede <hdegoede@redhat.com> Signed-off-by:
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Krzysztof Kozlowski authored
[ Upstream commit 3ef01c96 ] NF_CT_PROTO_DCCP/SCTP/UDPLITE were switched from tristate to boolean so defconfig needs to be adjusted to silence warnings: warning: symbol value 'm' invalid for NF_CT_PROTO_DCCP warning: symbol value 'm' invalid for NF_CT_PROTO_SCTP warning: symbol value 'm' invalid for NF_CT_PROTO_UDPLITE Signed-off-by:
Krzysztof Kozlowski <krzk@kernel.org> Signed-off-by:
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Masami Hiramatsu authored
[ Upstream commit 1f2ed153 ] Since 'perf probe' supports cross-arch probes, it is possible to analyze different arch kernel image which has different bits-per-long. In that case, it fails to get the module name because it uses the MOD_NAME_OFFSET macro based on the host machine bits-per-long, instead of the target arch bits-per-long. This fixes above issue by changing modname-offset based on the target archs bit width. This is ok because linux kernel uses LP64 model on 64bit arch. E.g. without this (on x86_64, and target module is arm32): $ perf probe -m build-arm/fs/configfs/configfs.ko -D configfs_lookup p:probe/configfs_lookup :configfs_lookup+0 ^-Here is an empty module name. With this fix, you can see correct module name: $ perf probe -m build-arm/fs/configfs/configfs.ko -D configfs_lookup p:probe/configfs_lookup configfs:configfs_lookup+0 Signed-off-by:
Masami Hiramatsu <mhiramat@kernel.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Link: http://lkml.kernel.org/r/148337043836.6752.383495516397005695.stgit@devboxSigned-off-by:
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Moritz Fischer authored
[ Upstream commit c415f9e8 ] The Zynq Ultrascale MP uses version 1.4 of the Cadence IP core which fixes some silicon bugs that needed software workarounds in Version 1.0 that was used on Zynq systems. Signed-off-by:
Moritz Fischer <mdf@kernel.org> Cc: Michal Simek <michal.simek@xilinx.com> Cc: Sören Brinkmann <soren.brinkmann@xilinx.com> Cc: Rob Herring <robh+dt@kernel.org> Acked-by:
Sören Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by:
Michal Simek <michal.simek@xilinx.com> Signed-off-by:
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Michal Simek authored
[ Upstream commit 4ea2a6be ] The patch removes these warnings reported by dtc 1.4: Warning (unit_address_vs_reg): Node /amba_apu has a reg or ranges property, but no unit name Warning (unit_address_vs_reg): Node /memory has a reg or ranges property, but no unit name Signed-off-by:
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Grygorii Strashko authored
[ Upstream commit 12a7f17f ] Now races can happen between interrupt handler execution and PM runtime in error handling code path in probe and in dwc3_omap_remove() which will lead to system crash: in probe: ... err1: pm_runtime_put_sync(dev); ^^ PM runtime can race with IRQ handler when deferred probing happening due to extcon pm_runtime_disable(dev); return ret; in dwc3_omap_remove: ... dwc3_omap_disable_irqs(omap); ^^ IRQs are disabled in HW, but handler may still run of_platform_depopulate(omap->dev); pm_runtime_put_sync(&pdev->dev); ^^ PM runtime can race with IRQ handler pm_runtime_disable(&pdev->dev); return 0; So, OMAP DWC3 IRQ need to be disabled before calling pm_runtime_put() in probe and in dwc3_omap_remove(). Acked-by:
Tony Lindgren <tony@atomide.com> Signed-off-by:
Grygorii Strashko <grygorii.strashko@ti.com> Signed-off-by:
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Christophe JAILLET authored
[ Upstream commit 75bdc7f3 ] Add some missing 'of_node_put()' in early exit error path. Signed-off-by:
Christophe JAILLET <christophe.jaillet@wanadoo.fr> Signed-off-by:
Vinod Koul <vinod.koul@intel.com> Signed-off-by:
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Guillaume Nault authored
[ Upstream commit 97b84fd6 ] An L2TP socket bound to the unspecified address should match with any address. If not, it can't receive any packet and __l2tp_ip6_bind_lookup() can't prevent another socket from binding on the same device/tunnel ID. While there, rename the 'addr' variable to 'sk_laddr' (local addr), to make following patch clearer. Signed-off-by:
Guillaume Nault <g.nault@alphalink.fr> Signed-off-by:
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Dave Jiang authored
[ Upstream commit 34a31f0a ] The Skylake ioatdma is technically CBDMA 3.2+ and contains the same hardware bits with some additional 3.3 features, but it's not really 3.3 where the driver is concerned. Signed-off-by:
Dave Jiang <dave.jiang@intel.com> Signed-off-by:
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Dave Jiang authored
[ Upstream commit 1594c18f ] Adding Skylake Xeon PCI device ids for ioatdma and related bits. Signed-off-by:
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Stafford Horne authored
[ Upstream commit 086cc1c3 ] The build robot reports: .tmp_kallsyms1.o: In function `kallsyms_relative_base': >> (.rodata+0x8a18): undefined reference to `_text' This is when using 'make alldefconfig'. Adding this _text symbol to mark the start of the kernel as in other architecture fixes this. Signed-off-by:
Stafford Horne <shorne@gmail.com> Acked-by:
Jonas Bonn <jonas@southpole.se> Signed-off-by:
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Stefan Wahren authored
[ Upstream commit 88e20c74 ] The ICOLL controller doesn't provide any facility to configure the wakeup sources. That's the reason why this implementation lacks the irq_set_wake implementation. But this prevent us from properly entering power management states like "suspend to idle". So enable the flags IRQCHIP_SKIP_SET_WAKE and IRQCHIP_MASK_ON_SUSPEND to let the irqchip core allows and handles the power management. Signed-off-by:
Stefan Wahren <stefan.wahren@i2se.com> Reviewed-by:
Jason Cooper <jason@lakedaemon.net> Signed-off-by:
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John Hsu authored
[ Upstream commit a1792cda ] The clk_ref_div is not configured in the correct position of the register. The patch fixes that clk_ref_div, Pre-Scalar, is assigned the wrong value. Signed-off-by:
John Hsu <KCHSU0@nuvoton.com> Signed-off-by:
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Phil Reid authored
[ Upstream commit 13288bdf ] Some system have multiple dw devices. Currently the driver uses a fixed name for the debugfs dir. Append dev name to the debugfs dir name to make it unique. Signed-off-by:
Phil Reid <preid@electromag.com.au> Signed-off-by:
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Peter Ujfalusi authored
[ Upstream commit 63c3194b ] The RESET register only have one self clearing bit and it should not be cached. If it is cached, when we sync the registers back to the chip we will initiate a software reset as well, which is not desirable. Signed-off-by:
Peter Ujfalusi <peter.ujfalusi@ti.com> Reviewed-by:
Jarkko Nikula <jarkko.nikula@bitmer.com> Signed-off-by:
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Strashko, Grygorii authored
[ Upstream commit 2f884e6e ] The below call chain generates "scheduling while atomic" backtrace and causes system crash when Keystone 2 IRQ chip driver is used with RT-kernel: gic_handle_irq() |-__handle_domain_irq() |-generic_handle_irq() |-keystone_irq_handler() |-regmap_read() |-regmap_lock_spinlock() |-rt_spin_lock() The reason is that Keystone driver dispatches IRQ using chained IRQ handler and accesses I/O memory through syscon->regmap(mmio) which is implemented as fast_io regmap and uses regular spinlocks for synchronization, but spinlocks transformed to rt_mutexes on RT. Hence, convert Keystone 2 IRQ driver to use generic irq handler instead of chained IRQ handler. This way it will be compatible with RT kernel where it will be forced thread IRQ handler while in non-RT kernel it still will be executed in HW IRQ context. Cc: Suman Anna <s-anna@ti.com> Signed-off-by:
Suman Anna <s-anna@ti.com> Link: https://lkml.kernel.org/r/20161208233310.10329-1-grygorii.strashko@ti.comSigned-off-by:
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Arnd Bergmann authored
[ Upstream commit 45e86971 ] Using ancient compilers (gcc-4.5 or older) on ARM, we get a link failure with the vfio-pci driver: ERROR: "__aeabi_lcmp" [drivers/vfio/pci/vfio-pci.ko] undefined! The reason is that the compiler tries to do a comparison of a 64-bit range. This changes it to convert to a 32-bit number explicitly first, as newer compilers do for themselves. Signed-off-by:
Arnd Bergmann <arnd@arndb.de> Signed-off-by:
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Jordan Crouse authored
[ Upstream commit a6cb3b86 ] For every submission buffer object one of MSM_SUBMIT_BO_WRITE and MSM_SUBMIT_BO_READ must be set (and nothing else). If we allowed zero then the buffer object would never get queued to be unreferenced. Signed-off-by:
Jordan Crouse <jcrouse@codeaurora.org> Signed-off-by:
Rob Clark <robdclark@gmail.com> Signed-off-by:
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Jordan Crouse authored
[ Upstream commit 6490abc4 ] The error cases in submit_reloc() need to put back the virtual address of the bo before failling. Add a single failure path for the function. Signed-off-by:
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