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mainline boot: 32 pass, 0 fail (v3.13-rc4-99-g35eecf0)

by Kevin's boot bot

Automated DT boot report for various ARM defconfigs. Tree/Branch: mainline Git describe: v3.13-rc4-99-g35eecf0 Full Report =========== omap2plus_defconfig ------------------- am335x-boneblack PASS: 0 min 37.9 sec omap3-beagle-xm PASS: 0 min 53.3 sec am335x-bone PASS: 0 min 26.6 sec omap4-panda PASS: 1 min 3.0 sec omap4-panda-es PASS: 1 min 3.2 sec omap3-tobi,3730storm PASS: 0 min 24.1 sec omap3-tobi,3530overo PASS: 0 min 21.9 sec tegra_defconfig --------------- tegra30-beaver PASS: 0 min 17.0 sec imx_v6_v7_defconfig ------------------- imx6dl-wandboard,wand-dual PASS: 0 min 16.9 sec imx6dl-wandboard,wand-solo PASS: 0 min 18.3 sec imx6q-wandboard PASS: 0 min 16.6 sec sunxi_defconfig --------------- sun7i-a20-cubieboard2 PASS: 0 min 12.0 sec mvebu_defconfig --------------- armada-xp-openblocks-ax3-4 PASS: 0 min 22.0 sec armada-370-mirabox PASS: 0 min 20.0 sec exynos_defconfig ---------------- exynos5250-arndale PASS: 0 min 29.5 sec multi_v7_defconfig ------------------ ste-snowball PASS: 0 min 32.0 sec tegra30-beaver PASS: 0 min 19.1 sec am335x-boneblack PASS: 0 min 24.7 sec omap3-beagle-xm PASS: 0 min 50.2 sec sun7i-a20-cubieboard2 PASS: 0 min 13.0 sec armada-370-mirabox PASS: 0 min 20.5 sec omap4-panda PASS: 1 min 2.2 sec omap4-panda-es PASS: 0 min 58.4 sec armada-xp-openblocks-ax3-4 PASS: 0 min 22.7 sec imx6dl-wandboard,wand-solo PASS: 0 min 16.6 sec am335x-bone PASS: 0 min 23.4 sec imx6q-wandboard PASS: 0 min 16.8 sec omap3-tobi,3730storm PASS: 0 min 22.5 sec imx6dl-wandboard,wand-dual PASS: 0 min 16.9 sec omap3-tobi,3530overo PASS: 0 min 20.1 sec u8500_defconfig --------------- ste-snowball PASS: 0 min 27.7 sec sama5_defconfig --------------- sama5d35ek PASS: 0 min 17.4 sec

11 years, 6 months

queue boot: 31 pass, 0 fail (v3.12.5-92-gedafc8c)

by Kevin's boot bot

Automated DT boot report for various ARM defconfigs. Tree/Branch: queue Git describe: v3.12.5-92-gedafc8c Full Report =========== omap2plus_defconfig ------------------- am335x-boneblack PASS: 0 min 27.3 sec omap3-beagle-xm PASS: 0 min 53.9 sec am335x-bone PASS: 0 min 26.2 sec omap4-panda PASS: 1 min 7.2 sec omap4-panda-es PASS: 1 min 9.3 sec omap3-tobi,3730storm PASS: 0 min 20.8 sec omap3-tobi,3530overo PASS: 0 min 21.5 sec tegra_defconfig --------------- tegra30-beaver PASS: 0 min 16.9 sec imx_v6_v7_defconfig ------------------- imx6dl-wandboard,wand-dual PASS: 0 min 16.4 sec imx6dl-wandboard,wand-solo PASS: 0 min 16.0 sec imx6q-wandboard PASS: 0 min 14.7 sec mvebu_defconfig --------------- armada-xp-openblocks-ax3-4 PASS: 0 min 21.8 sec armada-370-mirabox PASS: 0 min 20.0 sec exynos_defconfig ---------------- exynos5250-arndale PASS: 0 min 28.9 sec multi_v7_defconfig ------------------ ste-snowball PASS: 0 min 28.5 sec tegra30-beaver PASS: 0 min 16.6 sec am335x-boneblack PASS: 0 min 34.4 sec omap3-beagle-xm PASS: 0 min 52.0 sec sun7i-a20-cubieboard2 PASS: 0 min 13.0 sec armada-370-mirabox PASS: 0 min 20.6 sec omap4-panda PASS: 1 min 1.2 sec omap4-panda-es PASS: 1 min 4.8 sec armada-xp-openblocks-ax3-4 PASS: 0 min 22.6 sec imx6dl-wandboard,wand-solo PASS: 0 min 16.4 sec am335x-bone PASS: 0 min 33.2 sec imx6q-wandboard PASS: 0 min 15.7 sec omap3-tobi,3730storm PASS: 0 min 22.1 sec imx6dl-wandboard,wand-dual PASS: 0 min 16.6 sec omap3-tobi,3530overo PASS: 0 min 19.6 sec u8500_defconfig --------------- ste-snowball PASS: 0 min 34.3 sec sama5_defconfig --------------- sama5d35ek PASS: 0 min 17.6 sec

11 years, 6 months

arm-soc boot: 32 pass, 1 fail (v3.13-rc3-355-g343decf)

by Kevin's boot bot

Automated DT boot report for various ARM defconfigs. Tree/Branch: arm-soc Git describe: v3.13-rc3-355-g343decf Failed boot tests (console logs at the end) =========================================== bcm28155-ap: FAIL: multi_v7_defconfig Full Report =========== omap2plus_defconfig ------------------- am335x-boneblack PASS: 0 min 27.8 sec omap3-beagle-xm PASS: 0 min 51.8 sec am335x-bone PASS: 0 min 26.6 sec omap4-panda PASS: 1 min 8.0 sec omap4-panda-es PASS: 1 min 5.3 sec omap3-tobi,3730storm PASS: 0 min 21.2 sec omap3-tobi,3530overo PASS: 0 min 25.0 sec tegra_defconfig --------------- tegra30-beaver PASS: 0 min 17.0 sec imx_v6_v7_defconfig ------------------- imx6dl-wandboard,wand-dual PASS: 0 min 19.1 sec imx6dl-wandboard,wand-solo PASS: 0 min 19.3 sec imx6q-wandboard PASS: 0 min 17.5 sec sunxi_defconfig --------------- sun7i-a20-cubieboard2 PASS: 0 min 12.1 sec mvebu_defconfig --------------- armada-xp-openblocks-ax3-4 PASS: 0 min 21.9 sec armada-370-mirabox PASS: 0 min 20.1 sec exynos_defconfig ---------------- exynos5250-arndale PASS: 0 min 28.8 sec multi_v7_defconfig ------------------ ste-snowball PASS: 0 min 32.2 sec tegra30-beaver PASS: 0 min 14.3 sec am335x-boneblack PASS: 0 min 24.7 sec omap3-beagle-xm PASS: 0 min 52.8 sec sun7i-a20-cubieboard2 PASS: 0 min 13.1 sec armada-370-mirabox PASS: 0 min 20.6 sec omap4-panda PASS: 1 min 2.4 sec omap4-panda-es PASS: 1 min 2.9 sec armada-xp-openblocks-ax3-4 PASS: 0 min 22.9 sec bcm28155-ap FAIL: 0 min 15.0 sec imx6dl-wandboard,wand-solo PASS: 0 min 17.6 sec am335x-bone PASS: 0 min 23.5 sec imx6q-wandboard PASS: 0 min 16.9 sec omap3-tobi,3730storm PASS: 0 min 22.6 sec imx6dl-wandboard,wand-dual PASS: 0 min 16.8 sec omap3-tobi,3530overo PASS: 0 min 23.0 sec u8500_defconfig --------------- ste-snowball PASS: 0 min 27.9 sec sama5_defconfig --------------- sama5d35ek PASS: 0 min 17.4 sec Console logs for failures ========================= multi_v7_defconfig ------------------ bcm28155-ap: FAIL: last 24 lines of boot log: --------------------------------------------- Err: serial Disabling watchdog Hit any key to stop autoboot: 1 0 capri> capri> version version U-Boot 2013.01 (Nov 12 2013 - 15:29:56) arm-linux-gnueabihf-gcc (crosstool-NG linaro-1.13.1-2012.08-20120827 - Linaro GCC 2012.08) 4.7.2 20120731 (prerelease) GNU ld (crosstool-NG linaro-1.13.1-2012.08-20120827 - Linaro GCC 2012.08) 2.22 capri> if test -n ${initenv}; then run initenv; fi if test -n ${initenv}; then run initenv; fi capri> if test -n ${preboot}; then run preboot; fi if test -n ${preboot}; then run preboot; fi capri> setenv autoload no; setenv autoboot no setenv autoload no; setenv autoboot no capri> dhcp dhcp Unknown command 'dhcp' - try 'help' capri> ~$off # PYBOOT: Exception: u-boot: does not support DHCP. Giving up. # PYBOOT: Time: 15.02 seconds. # PYBOOT: Result: FAIL

11 years, 6 months

next boot: 33 pass, 0 fail (next-20131218)

by Kevin's boot bot

Automated DT boot report for various ARM defconfigs. Tree/Branch: next Git describe: next-20131218 Full Report =========== omap2plus_defconfig ------------------- am335x-boneblack PASS: 0 min 33.0 sec omap3-beagle-xm PASS: 0 min 53.2 sec am335x-bone PASS: 0 min 26.8 sec omap4-panda PASS: 1 min 3.5 sec omap4-panda-es PASS: 1 min 6.5 sec omap3-tobi,3730storm PASS: 0 min 24.8 sec omap3-tobi,3530overo PASS: 0 min 22.9 sec tegra_defconfig --------------- tegra30-beaver PASS: 0 min 16.9 sec imx_v6_v7_defconfig ------------------- imx6dl-wandboard,wand-dual PASS: 0 min 16.9 sec imx6dl-wandboard,wand-solo PASS: 0 min 18.3 sec imx6q-wandboard PASS: 0 min 16.7 sec sunxi_defconfig --------------- sun7i-a20-cubieboard2 PASS: 0 min 12.1 sec mvebu_defconfig --------------- armada-xp-openblocks-ax3-4 PASS: 0 min 21.9 sec armada-370-mirabox PASS: 0 min 20.2 sec exynos_defconfig ---------------- exynos5250-arndale PASS: 0 min 29.7 sec multi_v7_defconfig ------------------ ste-snowball PASS: 0 min 29.7 sec tegra30-beaver PASS: 0 min 19.4 sec am335x-boneblack PASS: 0 min 24.9 sec omap3-beagle-xm PASS: 0 min 52.3 sec sun7i-a20-cubieboard2 PASS: 0 min 13.1 sec armada-370-mirabox PASS: 0 min 20.8 sec omap4-panda PASS: 1 min 2.1 sec omap4-panda-es PASS: 1 min 2.9 sec armada-xp-openblocks-ax3-4 PASS: 0 min 23.1 sec imx6dl-wandboard,wand-solo PASS: 0 min 16.6 sec omap3-tobi,3530overo PASS: 0 min 20.4 sec am335x-bone PASS: 0 min 24.6 sec imx6q-wandboard PASS: 0 min 15.8 sec omap3-tobi,3730storm PASS: 0 min 19.8 sec 4430panda PASS: 1 min 5.9 sec imx6dl-wandboard,wand-dual PASS: 0 min 16.8 sec u8500_defconfig --------------- ste-snowball PASS: 0 min 27.9 sec sama5_defconfig --------------- sama5d35ek PASS: 1 min 16.9 sec

11 years, 6 months

[PATCH 1/4] arm64: topology: Implement basic CPU topology support

by Mark Brown

From: Mark Brown <broonie(a)linaro.org> Add basic CPU topology support to arm64, based on the existing pre-v8 code and some work done by Mark Hambleton. This patch does not implement any topology discovery support since that should be based on information from firmware, it merely implements the scaffolding for integration of topology support in the architecture. The goal is to separate the architecture hookup for providing topology information from the DT parsing in order to ease review and avoid blocking the architecture code (which will be built on by other work) with the DT code review by providing something something simple and basic. A following patch will implement support for parsing the DT topology bindings for ARM, similar patches will be needed for ACPI. Signed-off-by: Mark Brown <broonie(a)linaro.org> --- arch/arm64/Kconfig | 24 ++++++++++ arch/arm64/include/asm/topology.h | 39 ++++++++++++++++ arch/arm64/kernel/Makefile | 1 + arch/arm64/kernel/smp.c | 12 +++++ arch/arm64/kernel/topology.c | 95 +++++++++++++++++++++++++++++++++++++++ 5 files changed, 171 insertions(+) create mode 100644 arch/arm64/include/asm/topology.h create mode 100644 arch/arm64/kernel/topology.c diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 6d4dd22ee4b7..00fcd490b3be 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -154,6 +154,30 @@ config SMP If you don't know what to do here, say N. +config ARM_CPU_TOPOLOGY + bool "Support CPU topology definition" + depends on SMP + default y + help + Support CPU topology definition, based on configuration + provided by the firmware. + +config SCHED_MC + bool "Multi-core scheduler support" + depends on ARM_CPU_TOPOLOGY + help + Multi-core scheduler support improves the CPU scheduler's decision + making when dealing with multi-core CPU chips at a cost of slightly + increased overhead in some places. If unsure say N here. + +config SCHED_SMT + bool "SMT scheduler support" + depends on ARM_CPU_TOPOLOGY + help + Improves the CPU scheduler's decision making when dealing with + MultiThreading at a cost of slightly increased overhead in some + places. If unsure say N here. + config NR_CPUS int "Maximum number of CPUs (2-32)" range 2 32 diff --git a/arch/arm64/include/asm/topology.h b/arch/arm64/include/asm/topology.h new file mode 100644 index 000000000000..58b8b84adcd2 --- /dev/null +++ b/arch/arm64/include/asm/topology.h @@ -0,0 +1,39 @@ +#ifndef _ASM_ARM_TOPOLOGY_H +#define _ASM_ARM_TOPOLOGY_H + +#ifdef CONFIG_ARM_CPU_TOPOLOGY + +#include <linux/cpumask.h> + +struct cputopo_arm { + int thread_id; + int core_id; + int socket_id; + cpumask_t thread_sibling; + cpumask_t core_sibling; +}; + +extern struct cputopo_arm cpu_topology[NR_CPUS]; + +#define topology_physical_package_id(cpu) (cpu_topology[cpu].socket_id) +#define topology_core_id(cpu) (cpu_topology[cpu].core_id) +#define topology_core_cpumask(cpu) (&cpu_topology[cpu].core_sibling) +#define topology_thread_cpumask(cpu) (&cpu_topology[cpu].thread_sibling) + +#define mc_capable() (cpu_topology[0].socket_id != -1) +#define smt_capable() (cpu_topology[0].thread_id != -1) + +void init_cpu_topology(void); +void store_cpu_topology(unsigned int cpuid); +const struct cpumask *cpu_coregroup_mask(int cpu); + +#else + +static inline void init_cpu_topology(void) { } +static inline void store_cpu_topology(unsigned int cpuid) { } + +#endif + +#include <asm-generic/topology.h> + +#endif /* _ASM_ARM_TOPOLOGY_H */ diff --git a/arch/arm64/kernel/Makefile b/arch/arm64/kernel/Makefile index 5ba2fd43a75b..2d145e38ad49 100644 --- a/arch/arm64/kernel/Makefile +++ b/arch/arm64/kernel/Makefile @@ -18,6 +18,7 @@ arm64-obj-$(CONFIG_SMP) += smp.o smp_spin_table.o arm64-obj-$(CONFIG_HW_PERF_EVENTS) += perf_event.o arm64-obj-$(CONFIG_HAVE_HW_BREAKPOINT)+= hw_breakpoint.o arm64-obj-$(CONFIG_EARLY_PRINTK) += early_printk.o +arm64-obj-$(CONFIG_ARM_CPU_TOPOLOGY) += topology.o obj-y += $(arm64-obj-y) vdso/ obj-m += $(arm64-obj-m) diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c index a0c2ca602cf8..0271fbde5363 100644 --- a/arch/arm64/kernel/smp.c +++ b/arch/arm64/kernel/smp.c @@ -113,6 +113,11 @@ int __cpu_up(unsigned int cpu, struct task_struct *idle) return ret; } +static void __cpuinit smp_store_cpu_info(unsigned int cpuid) +{ + store_cpu_topology(cpuid); +} + /* * This is the secondary CPU boot entry. We're using this CPUs * idle thread stack, but a set of temporary page tables. @@ -150,6 +155,8 @@ asmlinkage void secondary_start_kernel(void) */ notify_cpu_starting(cpu); + smp_store_cpu_info(cpu); + /* * OK, now it's safe to let the boot CPU continue. Wait for * the CPU migration code to notice that the CPU is online @@ -388,6 +395,11 @@ void __init smp_prepare_cpus(unsigned int max_cpus) int err; unsigned int cpu, ncores = num_possible_cpus(); + init_cpu_topology(); + + smp_store_cpu_info(smp_processor_id()); + + /* * are we trying to boot more cores than exist? */ diff --git a/arch/arm64/kernel/topology.c b/arch/arm64/kernel/topology.c new file mode 100644 index 000000000000..b078afa6958d --- /dev/null +++ b/arch/arm64/kernel/topology.c @@ -0,0 +1,95 @@ +/* + * arch/arm64/kernel/topology.c + * + * Copyright (C) 2011,2013 Linaro Limited. + * Written by: Vincent Guittot + * + * based on arch/sh/kernel/topology.c + * + * This file is subject to the terms and conditions of the GNU General Public + * License. See the file "COPYING" in the main directory of this archive + * for more details. + */ + +#include <linux/cpu.h> +#include <linux/cpumask.h> +#include <linux/export.h> +#include <linux/init.h> +#include <linux/percpu.h> +#include <linux/node.h> +#include <linux/nodemask.h> +#include <linux/sched.h> +#include <linux/slab.h> + +#include <asm/cputype.h> +#include <asm/smp_plat.h> +#include <asm/topology.h> + +/* + * cpu topology table + */ +struct cputopo_arm cpu_topology[NR_CPUS]; +EXPORT_SYMBOL_GPL(cpu_topology); + +const struct cpumask *cpu_coregroup_mask(int cpu) +{ + return &cpu_topology[cpu].core_sibling; +} + +static void update_siblings_masks(unsigned int cpuid) +{ + struct cputopo_arm *cpu_topo, *cpuid_topo = &cpu_topology[cpuid]; + int cpu; + + /* update core and thread sibling masks */ + for_each_possible_cpu(cpu) { + cpu_topo = &cpu_topology[cpu]; + + if (cpuid_topo->socket_id != cpu_topo->socket_id) + continue; + + cpumask_set_cpu(cpuid, &cpu_topo->core_sibling); + if (cpu != cpuid) + cpumask_set_cpu(cpu, &cpuid_topo->core_sibling); + + if (cpuid_topo->core_id != cpu_topo->core_id) + continue; + + cpumask_set_cpu(cpuid, &cpu_topo->thread_sibling); + if (cpu != cpuid) + cpumask_set_cpu(cpu, &cpuid_topo->thread_sibling); + } + smp_wmb(); +} + +void store_cpu_topology(unsigned int cpuid) +{ + struct cputopo_arm *cpuid_topo = &cpu_topology[cpuid]; + + /* DT should have been parsed by the time we get here */ + if (cpuid_topo->core_id == -1) + pr_info("CPU%u: No topology information configured\n", cpuid); + else + update_siblings_masks(cpuid); +} + +/* + * init_cpu_topology is called at boot when only one cpu is running + * which prevent simultaneous write access to cpu_topology array + */ +void __init init_cpu_topology(void) +{ + unsigned int cpu; + + /* init core mask and power*/ + for_each_possible_cpu(cpu) { + struct cputopo_arm *cpu_topo = &(cpu_topology[cpu]); + + cpu_topo->thread_id = -1; + cpu_topo->core_id = -1; + cpu_topo->socket_id = -1; + cpumask_clear(&cpu_topo->core_sibling); + cpumask_clear(&cpu_topo->thread_sibling); + } + smp_wmb(); +} -- 1.8.5.1

11 years, 6 months

[PATCH] perf: unwind: use the dwarf info only if loaded

by Jean Pihet

Use the info only if it has been found in the .debug_frame section of the ELF binary. Signed-off-by: Jean Pihet <jean.pihet(a)linaro.org> --- tools/perf/util/unwind.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/tools/perf/util/unwind.c b/tools/perf/util/unwind.c index 0efd539..416f22b 100644 --- a/tools/perf/util/unwind.c +++ b/tools/perf/util/unwind.c @@ -340,10 +340,10 @@ find_proc_info(unw_addr_space_t as, unw_word_t ip, unw_proc_info_t *pi, /* Check the .debug_frame section for unwinding info */ if (!read_unwind_spec_debug_frame(map->dso, ui->machine, &segbase)) { memset(&di, 0, sizeof(di)); - dwarf_find_debug_frame(0, &di, ip, 0, map->dso->name, - map->start, map->end); - return dwarf_search_unwind_table(as, ip, &di, pi, - need_unwind_info, arg); + if (dwarf_find_debug_frame(0, &di, ip, 0, map->dso->name, + map->start, map->end)) + return dwarf_search_unwind_table(as, ip, &di, pi, + need_unwind_info, arg); } #endif -- 1.7.11.7

11 years, 6 months

queue boot: 30 pass, 0 fail (v3.12.5-1-g22858ce)

by Kevin's boot bot

Automated DT boot report for various ARM defconfigs. Tree/Branch: queue Git describe: v3.12.5-1-g22858ce Full Report =========== omap2plus_defconfig ------------------- am335x-boneblack PASS: 0 min 27.3 sec omap3-beagle-xm PASS: 0 min 51.1 sec am335x-bone PASS: 0 min 26.1 sec omap4-panda PASS: 1 min 6.0 sec omap4-panda-es PASS: 1 min 3.5 sec omap3-tobi,3730storm PASS: 0 min 23.8 sec omap3-tobi,3530overo PASS: 0 min 21.5 sec tegra_defconfig --------------- tegra30-beaver PASS: 0 min 16.8 sec imx_v6_v7_defconfig ------------------- imx6dl-wandboard,wand-dual PASS: 0 min 16.2 sec imx6dl-wandboard,wand-solo PASS: 0 min 16.0 sec imx6q-wandboard PASS: 0 min 14.6 sec mvebu_defconfig --------------- armada-xp-openblocks-ax3-4 PASS: 0 min 21.8 sec armada-370-mirabox PASS: 0 min 20.0 sec multi_v7_defconfig ------------------ ste-snowball PASS: 0 min 25.6 sec tegra30-beaver PASS: 0 min 16.6 sec am335x-boneblack PASS: 0 min 39.4 sec omap3-beagle-xm PASS: 0 min 46.9 sec sun7i-a20-cubieboard2 PASS: 0 min 13.0 sec armada-370-mirabox PASS: 0 min 20.5 sec omap4-panda PASS: 1 min 12.8 sec omap4-panda-es PASS: 1 min 8.3 sec armada-xp-openblocks-ax3-4 PASS: 0 min 22.7 sec imx6dl-wandboard,wand-solo PASS: 0 min 16.3 sec am335x-bone PASS: 0 min 33.2 sec imx6q-wandboard PASS: 0 min 15.6 sec omap3-tobi,3730storm PASS: 0 min 22.2 sec imx6dl-wandboard,wand-dual PASS: 0 min 16.5 sec omap3-tobi,3530overo PASS: 0 min 22.7 sec u8500_defconfig --------------- ste-snowball PASS: 0 min 36.0 sec sama5_defconfig --------------- sama5d35ek PASS: 0 min 17.4 sec

11 years, 6 months

[PATCH] mfd: wm8994: Allow modular build

by Mark Brown

From: Mark Brown <broonie(a)linaro.org> The interfaces that used to be built in only (interrupts IIRC) no longer are so allow the driver to be built as a module fixing arm64 allmodconfig builds. Signed-off-by: Mark Brown <broonie(a)linaro.org> --- drivers/mfd/Kconfig | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index 49bb445d846a..920ddfd85faa 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -1170,11 +1170,11 @@ config MFD_WM8350_I2C selected to enable support for the functionality of the chip. config MFD_WM8994 - bool "Wolfson Microelectronics WM8994" + tristate "Wolfson Microelectronics WM8994" select MFD_CORE select REGMAP_I2C select REGMAP_IRQ - depends on I2C=y + depends on I2C help The WM8994 is a highly integrated hi-fi CODEC designed for smartphone applicatiosn. As well as audio functionality it -- 1.8.5.1

11 years, 6 months

[RFC PATCH] KVM: arm/arm64: Clarify KVM_ARM_VCPU_INIT api

by Christoffer Dall

There is nothing technically or semantically wrong with calling KVM_ARM_VCPU_INIT more than once, and even calling this on a VCPU after the VCPU has been executed. It just happens that user space will need a way to reset the VCPU or put the VCPU back in PSCI power-off mode after the VM has run, for example when driving a system reset from user space. Clarify that it is perfectly fine to use this API for that purpose. Cc: Peter Maydell <peter.maydell(a)linaro.org> Signed-off-by: Christoffer Dall <christoffer.dall(a)linaro.org> --- Documentation/virtual/kvm/api.txt | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/Documentation/virtual/kvm/api.txt b/Documentation/virtual/kvm/api.txt index aad3244..d813a61 100644 --- a/Documentation/virtual/kvm/api.txt +++ b/Documentation/virtual/kvm/api.txt @@ -2341,6 +2341,11 @@ return ENOEXEC for that vcpu. Note that because some registers reflect machine topology, all vcpus should be created before this ioctl is invoked. +Calling this a second time on a VCPU will reset the cpu registers to +their initial values and can be used with the feature bits to change the +CPU state, for example to put the CPU into power off mode from user +space. + Possible features: - KVM_ARM_VCPU_POWER_OFF: Starts the CPU in a power-off state. Depends on KVM_CAP_ARM_PSCI. -- 1.8.5

11 years, 6 months

[PATCH] tty: xuartps: Fix build when SYSRQ is disabled

by Mark Brown

From: Mark Brown <broonie(a)linaro.org> The sysrq field in struct uart_port is only defined when SERIAL_CORE_CONSOLE or SUPPORT_SYSRQ are selected but the driver uses the field unconditionally, causing build failures if they aren't (as happens when doing an arm64 allmodconfig). Make the usage conditional as well. Signed-off-by: Mark Brown <broonie(a)linaro.org> --- drivers/tty/serial/xilinx_uartps.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c index e46e9f3f19b9..17de38064b2a 100644 --- a/drivers/tty/serial/xilinx_uartps.c +++ b/drivers/tty/serial/xilinx_uartps.c @@ -240,6 +240,7 @@ static irqreturn_t xuartps_isr(int irq, void *dev_id) continue; } +#if defined(CONFIG_SERIAL_CORE_CONSOLE) || defined(SUPPORT_SYSRQ) /* * uart_handle_sysrq_char() doesn't work if * spinlocked, for some reason @@ -253,6 +254,7 @@ static irqreturn_t xuartps_isr(int irq, void *dev_id) } spin_lock(&port->lock); } +#endif port->icount.rx++; -- 1.8.5.1

11 years, 6 months

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