linaro-kernel July 2014

linaro-kernel@lists.linaro.org

85 participants
233 discussions

[PATCH v7 0/6] Support for creating generic host_bridge from device tree

by Liviu Dudau

I'm dropping the RFC tag now as I have the feeling that we are starting to have something in a good shape that can be pushed for more testing in near future. This is v7 of my attempt to add support for a generic pci_host_bridge controller created from a description passed in the device tree. Changes from v6: - Made pci_register_io_range() return an error if PCI_IOBASE is not defined. When the cleanup of PCI_IOBASE use is going to happen, that will catch all those architectures that don't use virtual mapping of I/O ranges (like x86) or don't support PCI at all. - Improved the error handling in of_pci_range_to_resource() and made it propagate the error as well. - Bail out of the parsing of PCI ranges if of_pci_range_to_resource() fails. Changes from v5: - Tested by Tanmay Inamdar, thanks Tanmay! - dropped v5 5/7 pci: Use parent domain number when allocating child busses. - Added weak implementation of pcibios_fixup_bridge_ranges() in drivers/pci/host-bridge.c so that architectures that enable CONFIG_OF and CONFIG_PCI don't suddenly get compilation errors. While at this, changed the signature of the function so that an error can be returned. - With the new error code in pcibios_fixup_bridge_ranges(), reworked the error handling in pci_host_bridge_of_get_ranges() and of_create_pci_host_bridge(). - Add linux/slab.h to the #include list - Revisit the error path in pci_create_root_bus[_in_domain]() and fixed the case where failing to allocate the bus will not return an error. Changes from v4: - Export pci_find_host_bridge() to be used by arch code. There is scope for making the arch/arm64 version of pci_domain_nr the default weak implementation but that would double the size of this series in order to handle all #define versions of the pci_domain_nr() function, so I suggest keeping that for a separate cleanup series. Changes from v3: - Dynamically allocate bus_range resource in of_create_pci_host_bridge() - Fix the domain number used when creating child busses. - Changed domain number allocator to use atomic operations. - Use ERR_PTR() to propagate the error out of pci_create_root_bus_in_domain() and of_create_pci_host_bridge(). Changes from v2: - Use range->cpu_addr when calling pci_address_to_pio() - Introduce pci_register_io_range() helper function in order to register io ranges ahead of their conversion to PIO values. This is needed as no information is being stored yet regarding the range mapping, making pci_address_to_pio() fail. Default weak implementation does nothing, to cover the default weak implementation of pci_address_to_pio() that expects direct mapping of physical addresses into PIO values (x86 view). Changes from v1: - Add patch to fix conversion of IO ranges into IO resources. - Added a domain_nr member to pci_host_bridge structure, and a new function to create a root bus in a given domain number. In order to facilitate that I propose changing the order of initialisation between pci_host_bridge and it's related bus in pci_create_root_bus() as sort of a rever of 7b5436635800. This is done in patch 1/4 and 2/4. - Added a simple allocator of domain numbers in drivers/pci/host-bridge.c. The code will first try to get a domain id from of_alias_get_id(..., "pci-domain") and if that fails assign the next unallocated domain id. - Changed the name of the function that creates the generic host bridge from pci_host_bridge_of_init to of_create_pci_host_bridge and exported as GPL symbol. v6 thread here: https://lkml.org/lkml/2014/3/5/179 v5 thread here: https://lkml.org/lkml/2014/3/4/318 v4 thread here: https://lkml.org/lkml/2014/3/3/301 v3 thread here: https://lkml.org/lkml/2014/2/28/216 v2 thread here: https://lkml.org/lkml/2014/2/27/245 v1 thread here: https://lkml.org/lkml/2014/2/3/380 Best regards, Liviu Liviu Dudau (6): pci: Introduce pci_register_io_range() helper function. pci: OF: Fix the conversion of IO ranges into IO resources. pci: Create pci_host_bridge before its associated bus in pci_create_root_bus. pci: Introduce a domain number for pci_host_bridge. pci: Export find_pci_host_bridge() function. pci: Add support for creating a generic host_bridge from device tree drivers/of/address.c | 49 +++++++++++ drivers/pci/host-bridge.c | 161 ++++++++++++++++++++++++++++++++++- drivers/pci/probe.c | 73 ++++++++++------ include/linux/of_address.h | 14 +-- include/linux/pci.h | 17 ++++ 5 files changed, 278 insertions(+), 36 deletions(-) -- 1.9.0

10 years, 9 months

next boot: 64 boots: 60 pass, 4 fail (next-20140708)

by Kevin's boot bot

Full logs here: http://armcloud.us/kernel-ci/next/next-20140708 Tree/Branch: next Git describe: next-20140708 Failed boot tests ================= exynos5420-arndale-octa: FAIL: arm-exynos_defconfig http://armcloud.us/kernel-ci/next/next-20140708/arm-exynos_defconfig/boot-e… imx6dl-wandboard,wand-dual: FAIL: arm-imx_v6_v7_defconfig http://armcloud.us/kernel-ci/next/next-20140708/arm-imx_v6_v7_defconfig/boo… imx6dl-wandboard,wand-solo: FAIL: arm-imx_v6_v7_defconfig http://armcloud.us/kernel-ci/next/next-20140708/arm-imx_v6_v7_defconfig/boo… imx6q-wandboard: FAIL: arm-imx_v6_v7_defconfig http://armcloud.us/kernel-ci/next/next-20140708/arm-imx_v6_v7_defconfig/boo… Full Report =========== arm-davinci_all_defconfig ------------------------- legacy,dm365evm 0 min 18.2 sec: PASS da850-evm 0 min 16.5 sec: PASS arm-tegra_defconfig ------------------- tegra124-jetson-tk1 0 min 18.8 sec: PASS tegra30-beaver 0 min 18.2 sec: PASS arm-multi_v7_defconfig+CONFIG_ARM_LPAE=y ---------------------------------------- tegra124-jetson-tk1 0 min 18.7 sec: PASS armada-xp-openblocks-ax3-4 0 min 24.8 sec: PASS omap5-uevm 1 min 59.8 sec: PASS (Warnings: 1) sun7i-a20-cubieboard2 0 min 13.6 sec: PASS arm-mvebu_v7_defconfig+CONFIG_CPU_BIG_ENDIAN=y ---------------------------------------------- armada-xp-openblocks-ax3-4 0 min 24.1 sec: PASS armada-370-mirabox 0 min 21.0 sec: PASS arm-omap2plus_defconfig ----------------------- legacy,3730xm 0 min 41.0 sec: PASS am335x-boneblack 0 min 23.1 sec: PASS omap3-beagle-xm 0 min 50.2 sec: PASS legacy,3530beagle 0 min 27.5 sec: PASS (Warnings: 1) omap4-panda 0 min 56.1 sec: PASS omap3-overo-tobi 0 min 24.1 sec: PASS am335x-bone 0 min 24.9 sec: PASS omap3-overo-storm-tobi 0 min 25.1 sec: PASS omap5-uevm 1 min 0.1 sec: PASS (Warnings: 1) omap3-n900 0 min 17.6 sec: PASS legacy,n900 0 min 17.1 sec: PASS (Warnings: 2) omap4-panda-es 0 min 52.6 sec: PASS (Warnings: 1) legacy,3730storm 0 min 24.0 sec: PASS legacy,3530overo 0 min 22.4 sec: PASS (Warnings: 1) arm-multi_v7_defconfig ---------------------- imx6dl-wandboard,wand-solo 0 min 15.9 sec: PASS am335x-boneblack 0 min 22.6 sec: PASS sun7i-a20-cubieboard2 0 min 13.6 sec: PASS sun4i-a10-cubieboard 0 min 13.4 sec: PASS exynos5410-smdk5410 0 min 23.0 sec: PASS am335x-bone 0 min 24.5 sec: PASS tegra124-jetson-tk1 0 min 18.8 sec: PASS armada-370-mirabox 0 min 22.4 sec: PASS omap4-panda 0 min 53.5 sec: PASS imx6q-wandboard 0 min 15.1 sec: PASS imx6dl-wandboard,wand-dual 0 min 16.2 sec: PASS ste-snowball 1 min 35.8 sec: PASS tegra30-beaver 0 min 20.9 sec: PASS omap3-n900 0 min 17.3 sec: PASS qcom-apq8074-dragonboard 0 min 20.2 sec: PASS bcm28155-ap 0 min 26.8 sec: PASS omap3-overo-tobi 0 min 23.0 sec: PASS omap3-overo-storm-tobi 0 min 25.1 sec: PASS omap3-beagle-xm 0 min 54.8 sec: PASS exynos5420-arndale-octa 0 min 35.2 sec: PASS armada-xp-openblocks-ax3-4 0 min 25.8 sec: PASS omap5-uevm 1 min 58.2 sec: PASS (Warnings: 1) omap4-panda-es 0 min 54.3 sec: PASS (Warnings: 1) exynos5250-arndale 0 min 32.1 sec: PASS arm-sunxi_defconfig ------------------- sun7i-a20-cubieboard2 0 min 12.5 sec: PASS sun4i-a10-cubieboard 0 min 15.2 sec: PASS arm-qcom_defconfig ------------------ qcom-apq8074-dragonboard 0 min 18.4 sec: PASS arm-bcm_defconfig ----------------- bcm28155-ap 0 min 22.9 sec: PASS arm-exynos_defconfig -------------------- exynos5420-arndale-octa 2 min 0.4 sec: FAIL exynos5250-arndale 0 min 32.2 sec: PASS exynos5410-smdk5410 0 min 21.1 sec: PASS arm-imx_v6_v7_defconfig ----------------------- imx6dl-wandboard,wand-dual 0 min 14.5 sec: FAIL imx6dl-wandboard,wand-solo 0 min 14.7 sec: FAIL imx6q-wandboard 0 min 13.3 sec: FAIL arm-u8500_defconfig ------------------- ste-snowball 0 min 30.8 sec: PASS arm-multi_v7_defconfig+CONFIG_CPU_BIG_ENDIAN=y ---------------------------------------------- armada-xp-openblocks-ax3-4 0 min 27.0 sec: PASS armada-370-mirabox 0 min 22.8 sec: PASS arm-mvebu_v7_defconfig ---------------------- armada-xp-openblocks-ax3-4 0 min 22.9 sec: PASS armada-370-mirabox 0 min 20.6 sec: PASS arm-sama5_defconfig ------------------- sama5d35ek 0 min 16.0 sec: PASS (Warnings: 1)

10 years, 9 months

arm-soc boot: 38 boots: 38 pass, 0 fail (v3.16-rc4-190-g2c73bcb)

by Kevin's boot bot

Full logs here: http://armcloud.us/kernel-ci/arm-soc/v3.16-rc4-190-g2c73bcb Tree/Branch: arm-soc Git describe: v3.16-rc4-190-g2c73bcb Full Report =========== arm-davinci_all_defconfig ------------------------- legacy,dm365evm 0 min 18.5 sec: PASS da850-evm 0 min 16.2 sec: PASS arm-mvebu_v7_defconfig+CONFIG_CPU_BIG_ENDIAN=y ---------------------------------------------- armada-xp-openblocks-ax3-4 0 min 24.2 sec: PASS armada-370-mirabox 0 min 21.1 sec: PASS arm-multi_v7_defconfig ---------------------- imx6dl-wandboard,wand-solo 0 min 16.2 sec: PASS am335x-boneblack 0 min 22.8 sec: PASS sun7i-a20-cubieboard2 0 min 13.7 sec: PASS sun4i-a10-cubieboard 0 min 13.3 sec: PASS exynos5410-smdk5410 0 min 22.9 sec: PASS am335x-bone 0 min 24.6 sec: PASS tegra124-jetson-tk1 0 min 18.6 sec: PASS armada-370-mirabox 0 min 22.4 sec: PASS omap4-panda 0 min 58.0 sec: PASS (Warnings: 1) imx6q-wandboard 0 min 14.7 sec: PASS imx6dl-wandboard,wand-dual 0 min 16.1 sec: PASS ste-snowball 1 min 33.5 sec: PASS tegra30-beaver 0 min 20.6 sec: PASS omap3-n900 0 min 17.3 sec: PASS qcom-apq8074-dragonboard 0 min 19.2 sec: PASS bcm28155-ap 0 min 28.2 sec: PASS omap3-overo-tobi 0 min 23.1 sec: PASS omap3-overo-storm-tobi 0 min 22.3 sec: PASS omap3-beagle-xm 0 min 52.2 sec: PASS exynos5420-arndale-octa 0 min 35.0 sec: PASS armada-xp-openblocks-ax3-4 0 min 25.8 sec: PASS omap5-uevm 2 min 1.9 sec: PASS (Warnings: 1) omap4-panda-es 0 min 56.3 sec: PASS (Warnings: 1) exynos5250-arndale 0 min 32.0 sec: PASS arm-multi_v7_defconfig+CONFIG_CPU_BIG_ENDIAN=y ---------------------------------------------- armada-xp-openblocks-ax3-4 0 min 27.3 sec: PASS armada-370-mirabox 0 min 22.9 sec: PASS arm-qcom_defconfig ------------------ qcom-apq8074-dragonboard 0 min 18.9 sec: PASS arm-u8500_defconfig ------------------- ste-snowball 0 min 31.2 sec: PASS arm-exynos_defconfig -------------------- exynos5420-arndale-octa 0 min 33.4 sec: PASS exynos5250-arndale 0 min 30.3 sec: PASS exynos5410-smdk5410 0 min 21.2 sec: PASS arm-imx_v6_v7_defconfig ----------------------- imx6dl-wandboard,wand-dual 0 min 16.7 sec: PASS imx6dl-wandboard,wand-solo 0 min 16.5 sec: PASS imx6q-wandboard 0 min 15.2 sec: PASS

10 years, 9 months

[PATCHv2 1/3] of: Split early_init_dt_scan into two parts

by Laura Abbott

Currently, early_init_dt_scan validates the header, sets the boot params, and scans for chosen/memory all in one function. Split this up into two separate functions (validation/setting boot params in one, scanning in another) to allow for additional setup between boot params and scanning the memory. Signed-off-by: Laura Abbott <lauraa(a)codeaurora.org> --- drivers/of/fdt.c | 18 +++++++++++++++++- include/linux/of_fdt.h | 2 ++ 2 files changed, 19 insertions(+), 1 deletion(-) diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c index c4cddf0..55bfca9 100644 --- a/drivers/of/fdt.c +++ b/drivers/of/fdt.c @@ -922,7 +922,7 @@ int __init __weak early_init_dt_reserve_memory_arch(phys_addr_t base, } #endif -bool __init early_init_dt_scan(void *params) +bool __init early_init_dt_verify(void *params) { if (!params) return false; @@ -936,6 +936,12 @@ bool __init early_init_dt_scan(void *params) return false; } + return true; +} + + +void __init early_init_dt_scan_all(void) +{ /* Retrieve various information from the /chosen node */ of_scan_flat_dt(early_init_dt_scan_chosen, boot_command_line); @@ -944,7 +950,17 @@ bool __init early_init_dt_scan(void *params) /* Setup memory, calling early_init_dt_add_memory_arch */ of_scan_flat_dt(early_init_dt_scan_memory, NULL); +} + +bool __init early_init_dt_scan(void *params) +{ + bool status; + + status = early_init_dt_verify(params); + if (!status) + return false; + early_init_dt_scan_all(); return true; } diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h index 0511789..d600993 100644 --- a/include/linux/of_fdt.h +++ b/include/linux/of_fdt.h @@ -73,6 +73,8 @@ extern int early_init_dt_scan_root(unsigned long node, const char *uname, int depth, void *data); extern bool early_init_dt_scan(void *params); +extern bool early_init_dt_verify(void *params); +extern void early_init_dt_scan_all(void); extern const char *of_flat_dt_get_machine_name(void); extern const void *of_flat_dt_match_machine(const void *default_match, -- The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum, hosted by The Linux Foundation

10 years, 9 months

mainline boot: 64 boots: 64 pass, 0 fail (v3.16-rc4-20-g448bfad)

by Kevin's boot bot

Full logs here: http://armcloud.us/kernel-ci/mainline/v3.16-rc4-20-g448bfad Tree/Branch: mainline Git describe: v3.16-rc4-20-g448bfad Full Report =========== arm-davinci_all_defconfig ------------------------- legacy,dm365evm 0 min 18.5 sec: PASS da850-evm 0 min 16.4 sec: PASS arm-tegra_defconfig ------------------- tegra124-jetson-tk1 0 min 18.6 sec: PASS tegra30-beaver 0 min 18.3 sec: PASS arm-multi_v7_defconfig+CONFIG_ARM_LPAE=y ---------------------------------------- tegra124-jetson-tk1 0 min 18.6 sec: PASS armada-xp-openblocks-ax3-4 0 min 24.5 sec: PASS omap5-uevm 1 min 42.7 sec: PASS (Warnings: 1) sun7i-a20-cubieboard2 0 min 13.7 sec: PASS arm-mvebu_v7_defconfig+CONFIG_CPU_BIG_ENDIAN=y ---------------------------------------------- armada-xp-openblocks-ax3-4 0 min 24.2 sec: PASS armada-370-mirabox 0 min 21.1 sec: PASS arm-omap2plus_defconfig ----------------------- legacy,3730xm 0 min 42.6 sec: PASS am335x-boneblack 0 min 23.0 sec: PASS omap3-beagle-xm 0 min 50.3 sec: PASS legacy,3530beagle 0 min 23.9 sec: PASS (Warnings: 1) omap4-panda 0 min 56.8 sec: PASS (Warnings: 1) omap3-overo-tobi 0 min 23.7 sec: PASS am335x-bone 0 min 24.9 sec: PASS omap3-overo-storm-tobi 0 min 26.0 sec: PASS omap5-uevm 0 min 59.7 sec: PASS (Warnings: 1) omap3-n900 0 min 17.3 sec: PASS legacy,n900 0 min 16.8 sec: PASS (Warnings: 1) omap4-panda-es 0 min 58.4 sec: PASS (Warnings: 1) legacy,3730storm 0 min 23.9 sec: PASS legacy,3530overo 0 min 22.3 sec: PASS (Warnings: 1) arm-multi_v7_defconfig ---------------------- imx6dl-wandboard,wand-solo 0 min 16.0 sec: PASS am335x-boneblack 0 min 23.0 sec: PASS sun7i-a20-cubieboard2 0 min 13.8 sec: PASS sun4i-a10-cubieboard 0 min 18.1 sec: PASS exynos5410-smdk5410 0 min 29.3 sec: PASS am335x-bone 0 min 24.4 sec: PASS tegra124-jetson-tk1 0 min 18.8 sec: PASS armada-370-mirabox 0 min 22.4 sec: PASS omap4-panda 0 min 58.1 sec: PASS (Warnings: 1) imx6q-wandboard 0 min 14.8 sec: PASS imx6dl-wandboard,wand-dual 0 min 16.3 sec: PASS ste-snowball 1 min 16.7 sec: PASS tegra30-beaver 0 min 20.4 sec: PASS omap3-n900 0 min 16.5 sec: PASS qcom-apq8074-dragonboard 0 min 19.6 sec: PASS bcm28155-ap 0 min 26.9 sec: PASS omap3-overo-tobi 0 min 23.0 sec: PASS omap3-overo-storm-tobi 0 min 24.4 sec: PASS omap3-beagle-xm 0 min 51.4 sec: PASS exynos5420-arndale-octa 0 min 40.8 sec: PASS armada-xp-openblocks-ax3-4 0 min 25.6 sec: PASS omap5-uevm 1 min 39.2 sec: PASS (Warnings: 1) omap4-panda-es 0 min 51.9 sec: PASS (Warnings: 1) exynos5250-arndale 0 min 32.0 sec: PASS arm-sunxi_defconfig ------------------- sun7i-a20-cubieboard2 0 min 12.2 sec: PASS sun4i-a10-cubieboard 0 min 15.4 sec: PASS arm-qcom_defconfig ------------------ qcom-apq8074-dragonboard 0 min 19.1 sec: PASS arm-bcm_defconfig ----------------- bcm28155-ap 0 min 24.4 sec: PASS arm-exynos_defconfig -------------------- exynos5420-arndale-octa 0 min 39.4 sec: PASS exynos5250-arndale 0 min 30.7 sec: PASS exynos5410-smdk5410 0 min 27.8 sec: PASS arm-imx_v6_v7_defconfig ----------------------- imx6dl-wandboard,wand-dual 0 min 16.6 sec: PASS imx6dl-wandboard,wand-solo 0 min 16.6 sec: PASS imx6q-wandboard 0 min 15.0 sec: PASS arm-u8500_defconfig ------------------- ste-snowball 0 min 28.2 sec: PASS arm-multi_v7_defconfig+CONFIG_CPU_BIG_ENDIAN=y ---------------------------------------------- armada-xp-openblocks-ax3-4 0 min 27.1 sec: PASS armada-370-mirabox 0 min 23.0 sec: PASS arm-mvebu_v7_defconfig ---------------------- armada-xp-openblocks-ax3-4 0 min 22.8 sec: PASS armada-370-mirabox 0 min 20.7 sec: PASS arm-sama5_defconfig ------------------- sama5d35ek 0 min 16.2 sec: PASS (Warnings: 1)

10 years, 9 months

Linaro Android kernel crashes while trying to export certain gpios

by Mohammad Merajul Islam Molla

Hello, On Linaro Android 14.04, with custom compiled kernel (config file attached), I am facing a kernel crash (details log attached). I am running on Samsung Arndale Board with Exynos 5250. Output from my /sys/kernel/debug/gpio looks as below - root@arndale:/ # cat /sys/kernel/debug/gpio GPIOs 0-7, GPA0: gpio-0 (s3c24xx-uart ) in hi gpio-1 (s3c24xx-uart ) in hi gpio-2 (s3c24xx-uart ) in lo gpio-3 (s3c24xx-uart ) in hi gpio-6 (i2c-bus ) in hi gpio-7 (i2c-bus ) in hi GPIOs 9-14, GPA1: gpio-9 (s3c24xx-uart ) in hi gpio-10 (s3c24xx-uart ) in hi gpio-11 (s3c24xx-uart ) in hi gpio-12 (s3c24xx-uart ) in hi gpio-13 (s3c24xx-uart ) in lo gpio-14 (s3c24xx-uart ) in hi GPIOs 16-23, GPA2: GPIOs 25-29, GPB0: GPIOs 31-35, GPB1: GPIOs 37-40, GPB2: GPIOs 42-45, GPB3: gpio-42 (i2c-bus ) in hi gpio-43 (i2c-bus ) in hi GPIOs 47-53, GPC0: gpio-47 (dw-mci-bus ) in lo gpio-48 (dw-mci-bus ) in hi gpio-50 (dw-mci-bus ) in hi gpio-51 (dw-mci-bus ) in hi gpio-52 (dw-mci-bus ) in hi gpio-53 (dw-mci-bus ) in hi GPIOs 55-58, GPC1: gpio-55 (dw-mci-bus ) in hi gpio-56 (dw-mci-bus ) in hi gpio-57 (dw-mci-bus ) in hi gpio-58 (dw-mci-bus ) in hi GPIOs 60-66, GPC2: GPIOs 68-74, GPC3: gpio-68 (dw-mci-bus ) in lo gpio-69 (dw-mci-bus ) in hi gpio-70 (dw-mci-cd ) in lo gpio-71 (dw-mci-bus ) in lo gpio-72 (dw-mci-bus ) in hi gpio-73 (dw-mci-bus ) in hi gpio-74 (dw-mci-bus ) in hi GPIOs 76-82, GPC4: GPIOs 84-87, GPD0: gpio-84 (s3c24xx-uart ) in lo gpio-85 (s3c24xx-uart ) in hi gpio-86 (s3c24xx-uart ) in lo gpio-87 (s3c24xx-uart ) in hi GPIOs 89-96, GPD1: GPIOs 98-103, GPY0: GPIOs 105-108, GPY1: GPIOs 110-115, GPY2: GPIOs 117-124, GPY3: GPIOs 126-133, GPY4: GPIOs 135-142, GPY5: GPIOs 144-151, GPY6: GPIOs 153-160, GPX0: GPIOs 162-169, GPX1: gpio-163 (VDD_33ON_2.8V ) out hi GPIOs 171-178, GPX2: gpio-174 (S5M8767 DS2 ) out lo gpio-175 (S5M8767 DS3 ) out lo gpio-176 (S5M8767 DS4 ) out lo GPIOs 180-187, GPX3: gpio-187 (HPD ) in lo GPIOs 189-196, GPE0: GPIOs 198-199, GPE1: GPIOs 201-204, GPF0: GPIOs 206-209, GPF1: GPIOs 211-218, GPG0: GPIOs 220-227, GPG1: GPIOs 229-230, GPG2: GPIOs 232-235, GPH0: GPIOs 237-244, GPH1: GPIOs 246-253, GPV0: GPIOs 255-262, GPV1: GPIOs 264-271, GPV2: GPIOs 273-280, GPV3: GPIOs 282-283, GPV4: GPIOs 285-291, GPZ: While trying to export gpio 8, the crash happens - root@arndale:/ # echo 8 > /sys/class/gpio/export 1Unable to handle kernel NULL pointer dereference at virtual address 00000044 [ 26.700000] Unable to handle kernel NULL pointer dereference at virtual address 00000044 1pgd = e8848000 [ 26.700000] pgd = e8848000 [00000044] *pgd=00000000[ 26.720000] [00000044] *pgd=00000000 Internal error: Oops: 5 [#1] PREEMPT SMP ARM [ 26.730000] Internal error: Oops: 5 [#1] PREEMPT SMP ARM >From above, I noted that gpio 0 - 7 are associated with GPA0 and gpio 9 - 14 with GPA1. gpio 8 is not existent in /sys/kernel/debug/gpio file. On the same board, I ran Linaro Saucy server, and there the crash does not happen. /sys/kernel/debug/gpio on saucy server looks as below - GPIOs 0-7, platform/11400000.pinctrl, gpa0: GPIOs 8-13, platform/11400000.pinctrl, gpa1: GPIOs 14-21, platform/11400000.pinctrl, gpa2: GPIOs 22-26, platform/11400000.pinctrl, gpb0: GPIOs 27-31, platform/11400000.pinctrl, gpb1: GPIOs 32-35, platform/11400000.pinctrl, gpb2: GPIOs 36-39, platform/11400000.pinctrl, gpb3: GPIOs 40-46, platform/11400000.pinctrl, gpc0: GPIOs 47-50, platform/11400000.pinctrl, gpc1: GPIOs 51-57, platform/11400000.pinctrl, gpc2: GPIOs 58-64, platform/11400000.pinctrl, gpc3: GPIOs 65-68, platform/11400000.pinctrl, gpd0: GPIOs 69-76, platform/11400000.pinctrl, gpd1: gpio-76 (usb3503 connect ) out hi GPIOs 77-83, platform/11400000.pinctrl, gpc4: GPIOs 84-89, platform/11400000.pinctrl, gpy0: GPIOs 90-93, platform/11400000.pinctrl, gpy1: GPIOs 94-99, platform/11400000.pinctrl, gpy2: GPIOs 100-107, platform/11400000.pinctrl, gpy3: GPIOs 108-115, platform/11400000.pinctrl, gpy4: GPIOs 116-123, platform/11400000.pinctrl, gpy5: GPIOs 124-131, platform/11400000.pinctrl, gpy6: GPIOs 132-139, platform/11400000.pinctrl, gpx0: GPIOs 140-147, platform/11400000.pinctrl, gpx1: gpio-141 (VDD_33ON_2.8V ) out hi gpio-144 (SW-TACT2 ) in hi gpio-145 (SW-TACT3 ) in hi gpio-146 (SW-TACT4 ) in hi gpio-147 (SW-TACT5 ) in hi GPIOs 148-155, platform/11400000.pinctrl, gpx2: gpio-148 (SW-TACT6 ) in hi gpio-149 (SW-TACT7 ) in hi gpio-151 (S5M8767 DS2 ) out lo gpio-152 (S5M8767 DS3 ) out lo gpio-153 (S5M8767 DS4 ) out lo GPIOs 156-163, platform/11400000.pinctrl, gpx3: gpio-161 (usb3503 reset ) out hi gpio-163 (HPD ) in lo GPIOs 164-171, platform/13400000.pinctrl, gpe0: GPIOs 172-173, platform/13400000.pinctrl, gpe1: GPIOs 174-177, platform/13400000.pinctrl, gpf0: GPIOs 178-181, platform/13400000.pinctrl, gpf1: GPIOs 182-189, platform/13400000.pinctrl, gpg0: GPIOs 190-197, platform/13400000.pinctrl, gpg1: GPIOs 198-199, platform/13400000.pinctrl, gpg2: GPIOs 200-203, platform/13400000.pinctrl, gph0: GPIOs 204-211, platform/13400000.pinctrl, gph1: GPIOs 212-219, platform/10d10000.pinctrl, gpv0: GPIOs 220-227, platform/10d10000.pinctrl, gpv1: GPIOs 228-235, platform/10d10000.pinctrl, gpv2: GPIOs 236-243, platform/10d10000.pinctrl, gpv3: GPIOs 244-245, platform/10d10000.pinctrl, gpv4: GPIOs 246-252, platform/3860000.pinctrl, gpz: Questions - 1. Is it kernel bug? 2. Why are some gpios (8, 15, 24, etc) not mapped to any device on android? -- Thanks, - Meraj

10 years, 9 months

[PATCH 0/3] ARM: perf: allow tracing with kernel tracepoints events

by Jean Pihet

- Robustify the user backtrace code, as done on other architectures. - Provide the symbols resolution when triggering from tracepoints. Tested with perf record and tracepoints triggering (-e <tracepoint>), with unwinding using fp (--call-graph fp) and dwarf info (--call-graph dwarf). Jean Pihet (3): ARM: perf: Check that current->mm is alive before getting user callchain ARM: perf: disable the pagefault handler when reading from user space ARM: perf: allow tracing with kernel tracepoints events arch/arm/include/asm/perf_event.h | 19 +++++++++++++++++++ arch/arm/kernel/perf_event.c | 13 +++++++++++-- 2 files changed, 30 insertions(+), 2 deletions(-) -- 1.8.1.2

10 years, 9 months

[PATCH V2 1/2] nohz: Go tickless in lowres full dynticks mode

by Viresh Kumar

When expiry is set to KTIME_MAX, we cancel the 'tick-sched' hrtimer in highres mode and skip reprogramming clockevent device in lowres mode. But, the clockevent device is already reprogrammed from tick-handler. We will surely get interrupted atleast one more time at tick-interval. In highres mode, as there is no tick-sched hrtimer to service, we wouldn't restart the tick. But in lowres mode, we unconditionally reschedule the tick every time tick_nohz_handler() is called. So, even if 'tick_stopped' is set to '1', we will never be in full dynticks mode. To fix this, lets skip rescheduling next tick from tick-handler when we are running tickless. 'tick_stopped' can be set to '1' in one more case, i.e. when expires isn't equal to KTIME_MAX but is greater than equal to two jiffies. We can still avoid reprogramming clock device from the tick in this case as it's going to be reprogrammed from irq_exit() anyway. So we could avoid one useless device write. Similar piece of code was present initially when dynticks functionality was first added: 79bf2bb3. But later commit fb02fbc removed this check to keep jiffies updated for the sake of long running softirqs, but was later again reverted in ae99286b due to spurious wakeups. However it was not entirely reverted. The long running softirqs were asked to fix themselves. Introducing this change again shouldn't result in 'long running softirqs' issue discussed in fb02fbc, as tick_nohz_kick_tick() is still commented out. Reviewed-by: Preeti U Murthy <preeti(a)linux.vnet.ibm.com> Signed-off-by: Viresh Kumar <viresh.kumar(a)linaro.org> --- V1->V2: - Updated comments a bit for this one and added new patch 2/2. - Rebased over 3.16-rc3 Pushed here: git://git.kernel.org/pub/scm/linux/kernel/git/vireshk/linux.git tick/lowres-go-tickless kernel/time/tick-sched.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/kernel/time/tick-sched.c b/kernel/time/tick-sched.c index 6558b7a..bb7b736 100644 --- a/kernel/time/tick-sched.c +++ b/kernel/time/tick-sched.c @@ -956,6 +956,12 @@ static void tick_nohz_handler(struct clock_event_device *dev) tick_sched_do_timer(now); tick_sched_handle(ts, regs); + /* + * Skip reprogramming next event if we are running tickless. + */ + if (unlikely(ts->tick_stopped)) + return; + while (tick_nohz_reprogram(ts, now)) { now = ktime_get(); tick_do_update_jiffies64(now); -- 2.0.0.rc2

10 years, 9 months

next boot: 64 boots: 61 pass, 3 fail (next-20140707)

by Kevin's boot bot

Full logs here: http://armcloud.us/kernel-ci/next/next-20140707 Tree/Branch: next Git describe: next-20140707 Failed boot tests ================= imx6dl-wandboard,wand-dual: FAIL: arm-imx_v6_v7_defconfig http://armcloud.us/kernel-ci/next/next-20140707/arm-imx_v6_v7_defconfig/boo… imx6dl-wandboard,wand-solo: FAIL: arm-imx_v6_v7_defconfig http://armcloud.us/kernel-ci/next/next-20140707/arm-imx_v6_v7_defconfig/boo… imx6q-wandboard: FAIL: arm-imx_v6_v7_defconfig http://armcloud.us/kernel-ci/next/next-20140707/arm-imx_v6_v7_defconfig/boo… Full Report =========== arm-davinci_all_defconfig ------------------------- legacy,dm365evm 0 min 18.5 sec: PASS da850-evm 0 min 16.4 sec: PASS arm-tegra_defconfig ------------------- tegra124-jetson-tk1 0 min 18.6 sec: PASS tegra30-beaver 0 min 22.6 sec: PASS arm-multi_v7_defconfig+CONFIG_ARM_LPAE=y ---------------------------------------- tegra124-jetson-tk1 0 min 18.7 sec: PASS armada-xp-openblocks-ax3-4 0 min 24.8 sec: PASS omap5-uevm 1 min 58.5 sec: PASS (Warnings: 1) sun7i-a20-cubieboard2 0 min 13.5 sec: PASS arm-mvebu_v7_defconfig+CONFIG_CPU_BIG_ENDIAN=y ---------------------------------------------- armada-xp-openblocks-ax3-4 0 min 24.1 sec: PASS armada-370-mirabox 0 min 21.0 sec: PASS arm-omap2plus_defconfig ----------------------- legacy,3730xm 0 min 41.1 sec: PASS am335x-boneblack 0 min 22.9 sec: PASS omap3-beagle-xm 0 min 50.7 sec: PASS legacy,3530beagle 0 min 23.9 sec: PASS (Warnings: 1) omap4-panda 0 min 54.6 sec: PASS (Warnings: 1) omap3-overo-tobi 0 min 23.9 sec: PASS am335x-bone 0 min 24.7 sec: PASS omap3-overo-storm-tobi 0 min 26.0 sec: PASS omap5-uevm 0 min 59.0 sec: PASS (Warnings: 1) omap3-n900 0 min 17.9 sec: PASS legacy,n900 0 min 17.8 sec: PASS (Warnings: 2) omap4-panda-es 0 min 58.2 sec: PASS (Warnings: 1) legacy,3730storm 0 min 20.6 sec: PASS legacy,3530overo 0 min 21.8 sec: PASS (Warnings: 1) arm-multi_v7_defconfig ---------------------- imx6dl-wandboard,wand-solo 0 min 16.0 sec: PASS am335x-boneblack 0 min 22.9 sec: PASS sun7i-a20-cubieboard2 0 min 13.7 sec: PASS sun4i-a10-cubieboard 0 min 18.2 sec: PASS exynos5410-smdk5410 0 min 29.6 sec: PASS am335x-bone 0 min 24.6 sec: PASS tegra124-jetson-tk1 0 min 18.8 sec: PASS armada-370-mirabox 0 min 22.4 sec: PASS omap4-panda 0 min 58.4 sec: PASS (Warnings: 1) imx6q-wandboard 0 min 14.9 sec: PASS imx6dl-wandboard,wand-dual 0 min 16.0 sec: PASS ste-snowball 1 min 31.3 sec: PASS tegra30-beaver 0 min 20.7 sec: PASS omap3-n900 0 min 16.2 sec: PASS qcom-apq8074-dragonboard 0 min 20.2 sec: PASS bcm28155-ap 0 min 28.6 sec: PASS omap3-overo-tobi 0 min 22.9 sec: PASS omap3-overo-storm-tobi 0 min 25.2 sec: PASS omap3-beagle-xm 0 min 52.5 sec: PASS exynos5420-arndale-octa 0 min 40.8 sec: PASS armada-xp-openblocks-ax3-4 0 min 25.7 sec: PASS omap5-uevm 2 min 1.1 sec: PASS (Warnings: 1) omap4-panda-es 0 min 57.3 sec: PASS (Warnings: 1) exynos5250-arndale 0 min 35.1 sec: PASS arm-sunxi_defconfig ------------------- sun7i-a20-cubieboard2 0 min 12.4 sec: PASS sun4i-a10-cubieboard 0 min 12.1 sec: PASS arm-qcom_defconfig ------------------ qcom-apq8074-dragonboard 0 min 19.1 sec: PASS arm-bcm_defconfig ----------------- bcm28155-ap 0 min 24.1 sec: PASS arm-exynos_defconfig -------------------- exynos5420-arndale-octa 0 min 39.4 sec: PASS exynos5250-arndale 0 min 30.7 sec: PASS exynos5410-smdk5410 0 min 27.9 sec: PASS arm-imx_v6_v7_defconfig ----------------------- imx6dl-wandboard,wand-dual 0 min 14.9 sec: FAIL imx6dl-wandboard,wand-solo 0 min 14.8 sec: FAIL imx6q-wandboard 0 min 13.1 sec: FAIL arm-u8500_defconfig ------------------- ste-snowball 0 min 31.2 sec: PASS arm-multi_v7_defconfig+CONFIG_CPU_BIG_ENDIAN=y ---------------------------------------------- armada-xp-openblocks-ax3-4 0 min 27.3 sec: PASS armada-370-mirabox 0 min 22.8 sec: PASS arm-mvebu_v7_defconfig ---------------------- armada-xp-openblocks-ax3-4 0 min 22.8 sec: PASS armada-370-mirabox 0 min 20.6 sec: PASS arm-sama5_defconfig ------------------- sama5d35ek 0 min 16.2 sec: PASS (Warnings: 1)

10 years, 9 months

stable boot: 56 boots: 56 pass, 0 fail (v3.15.4)

by Kevin's boot bot

Full logs here: http://armcloud.us/kernel-ci/stable/v3.15.4 Tree/Branch: stable Git describe: v3.15.4 Full Report =========== arm-davinci_all_defconfig ------------------------- legacy,dm365evm 0 min 18.6 sec: PASS da850-evm 0 min 16.4 sec: PASS arm-tegra_defconfig ------------------- tegra30-beaver 0 min 17.9 sec: PASS arm-multi_v7_defconfig+CONFIG_ARM_LPAE=y ---------------------------------------- armada-xp-openblocks-ax3-4 0 min 24.3 sec: PASS omap5-uevm 1 min 36.1 sec: PASS sun7i-a20-cubieboard2 0 min 12.6 sec: PASS arm-mvebu_v7_defconfig+CONFIG_CPU_BIG_ENDIAN=y ---------------------------------------------- armada-xp-openblocks-ax3-4 0 min 24.0 sec: PASS armada-370-mirabox 0 min 21.9 sec: PASS arm-omap2plus_defconfig ----------------------- legacy,3730xm 0 min 40.6 sec: PASS am335x-boneblack 0 min 23.1 sec: PASS omap3-beagle-xm 0 min 51.6 sec: PASS legacy,3530beagle 0 min 26.1 sec: PASS (Warnings: 1) omap4-panda 0 min 54.4 sec: PASS omap3-overo-tobi 0 min 24.1 sec: PASS (Warnings: 1) am335x-bone 0 min 24.7 sec: PASS omap3-overo-storm-tobi 0 min 22.8 sec: PASS omap5-uevm 0 min 57.8 sec: PASS omap3-n900 0 min 18.2 sec: PASS (Warnings: 1) legacy,n900 0 min 17.8 sec: PASS (Warnings: 1) omap4-panda-es 0 min 58.2 sec: PASS legacy,3730storm 0 min 23.9 sec: PASS legacy,3530overo 0 min 22.1 sec: PASS (Warnings: 1) arm-multi_v7_defconfig ---------------------- qcom-apq8074-dragonboard 0 min 19.8 sec: PASS ste-snowball 1 min 19.2 sec: PASS tegra30-beaver 0 min 22.5 sec: PASS am335x-boneblack 0 min 22.4 sec: PASS omap3-beagle-xm 0 min 56.8 sec: PASS sun7i-a20-cubieboard2 0 min 12.8 sec: PASS armada-370-mirabox 0 min 22.2 sec: PASS omap4-panda 0 min 53.7 sec: PASS armada-xp-openblocks-ax3-4 0 min 25.2 sec: PASS sun4i-a10-cubieboard 0 min 17.6 sec: PASS bcm28155-ap 0 min 26.6 sec: PASS omap3-overo-tobi 0 min 22.9 sec: PASS (Warnings: 1) imx6dl-wandboard,wand-solo 0 min 15.5 sec: PASS am335x-bone 0 min 24.0 sec: PASS omap3-overo-storm-tobi 0 min 21.7 sec: PASS omap5-uevm 1 min 46.2 sec: PASS omap3-n900 0 min 16.7 sec: PASS (Warnings: 1) imx6q-wandboard 0 min 14.5 sec: PASS omap4-panda-es 0 min 52.6 sec: PASS imx6dl-wandboard,wand-dual 0 min 15.8 sec: PASS arm-sunxi_defconfig ------------------- sun7i-a20-cubieboard2 0 min 11.0 sec: PASS sun4i-a10-cubieboard 0 min 14.1 sec: PASS arm-bcm_defconfig ----------------- bcm28155-ap 0 min 23.5 sec: PASS arm-exynos_defconfig -------------------- exynos5420-arndale-octa 0 min 35.0 sec: PASS exynos5250-arndale 0 min 31.0 sec: PASS arm-imx_v6_v7_defconfig ----------------------- imx6dl-wandboard,wand-dual 0 min 16.3 sec: PASS imx6dl-wandboard,wand-solo 0 min 16.2 sec: PASS imx6q-wandboard 0 min 14.8 sec: PASS arm-u8500_defconfig ------------------- ste-snowball 0 min 28.2 sec: PASS arm-multi_v7_defconfig+CONFIG_CPU_BIG_ENDIAN=y ---------------------------------------------- armada-xp-openblocks-ax3-4 0 min 26.7 sec: PASS armada-370-mirabox 0 min 22.7 sec: PASS arm-mvebu_v7_defconfig ---------------------- armada-xp-openblocks-ax3-4 0 min 22.4 sec: PASS armada-370-mirabox 0 min 20.4 sec: PASS arm-sama5_defconfig ------------------- sama5d35ek 0 min 15.8 sec: PASS

10 years, 9 months

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linaro-kernel July 2014