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next-20140815 build: 1 failures 11 warnings (next-20140815)

by Build bot for Mark Brown

Tree/Branch: next-20140815 Git describe: next-20140815 Commit: 7bef919141 Add linux-next specific files for 20140815 Build Time: 8 min 0 sec Passed: 2 / 3 ( 66.67 %) Failed: 1 / 3 ( 33.33 %) Errors: 1 Warnings: 11 Section Mismatches: 0 Failed defconfigs: arm64-allmodconfig Errors: arm64-allmodconfig ../arch/arm64/kernel/ptrace.c:1120:3: error: too many arguments to function 'audit_syscall_entry' ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 3 warnings 0 mismatches : arm64-allnoconfig 8 warnings 0 mismatches : arm64-allmodconfig 3 warnings 0 mismatches : arm64-defconfig ------------------------------------------------------------------------------- Errors summary: 1 1 ../arch/arm64/kernel/ptrace.c:1120:3: error: too many arguments to function 'audit_syscall_entry' Warnings Summary: 11 4 <stdin>:1244:2: warning: #warning syscall memfd_create not implemented [-Wcpp] 1 ../sound/soc/fsl/fsl_sai.c:337:7: warning: large integer implicitly truncated to unsigned type [-Woverflow] 1 ../kernel/rcu/tree_plugin.h:2668:123: warning: 'rcu_organize_nocb_kthreads' defined but not used [-Wunused-function] 1 ../drivers/staging/bcm/CmHost.c:1564:3: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/staging/bcm/CmHost.c:1546:3: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/staging/bcm/CmHost.c:1503:3: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/power/reset/xgene-reboot.c:80:17: warning: assignment from incompatible pointer type [enabled by default] 1 ../drivers/irqchip/irq-gic-v3.c:203:12: warning: 'gic_peek_irq' defined but not used [-Wunused-function] 1 ../drivers/irqchip/irq-gic-v3.c:132:13: warning: 'gic_write_sgi1r' defined but not used [-Wunused-function] 1 ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined [enabled by default] 1 ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined [enabled by default] =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm64-allnoconfig : PASS, 0 errors, 3 warnings, 0 section mismatches Warnings: <stdin>:1244:2: warning: #warning syscall memfd_create not implemented [-Wcpp] ../drivers/irqchip/irq-gic-v3.c:132:13: warning: 'gic_write_sgi1r' defined but not used [-Wunused-function] ../drivers/irqchip/irq-gic-v3.c:203:12: warning: 'gic_peek_irq' defined but not used [-Wunused-function] ------------------------------------------------------------------------------- arm64-allmodconfig : FAIL, 1 errors, 8 warnings, 0 section mismatches Errors: ../arch/arm64/kernel/ptrace.c:1120:3: error: too many arguments to function 'audit_syscall_entry' Warnings: <stdin>:1244:2: warning: #warning syscall memfd_create not implemented [-Wcpp] ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined [enabled by default] ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined [enabled by default] ../sound/soc/fsl/fsl_sai.c:337:7: warning: large integer implicitly truncated to unsigned type [-Woverflow] ../drivers/power/reset/xgene-reboot.c:80:17: warning: assignment from incompatible pointer type [enabled by default] ../drivers/staging/bcm/CmHost.c:1503:3: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/staging/bcm/CmHost.c:1546:3: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/staging/bcm/CmHost.c:1564:3: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ------------------------------------------------------------------------------- arm64-defconfig : PASS, 0 errors, 3 warnings, 0 section mismatches Warnings: <stdin>:1244:2: warning: #warning syscall memfd_create not implemented [-Wcpp] ../kernel/rcu/tree_plugin.h:2668:123: warning: 'rcu_organize_nocb_kthreads' defined but not used [-Wunused-function] <stdin>:1244:2: warning: #warning syscall memfd_create not implemented [-Wcpp] ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches:

12 years

master build: 0 failures 11 warnings (v3.16-11452-g88ec63d)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v3.16-11452-g88ec63d Commit: 88ec63d6f8 Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi Build Time: 20 min 9 sec Passed: 3 / 3 (100.00 %) Failed: 0 / 3 ( 0.00 %) Errors: 0 Warnings: 11 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 3 warnings 0 mismatches : arm64-allnoconfig 10 warnings 0 mismatches : arm64-allmodconfig 2 warnings 0 mismatches : arm64-defconfig ------------------------------------------------------------------------------- Warnings Summary: 11 5 <stdin>:1244:2: warning: #warning syscall memfd_create not implemented [-Wcpp] 1 ../sound/soc/fsl/fsl_sai.c:337:7: warning: large integer implicitly truncated to unsigned type [-Woverflow] 1 ../fs/cifs/misc.c:578:1: warning: 'cifs_oplock_break_wait' defined but not used [-Wunused-function] 1 ../drivers/staging/bcm/CmHost.c:1564:3: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/staging/bcm/CmHost.c:1546:3: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/staging/bcm/CmHost.c:1503:3: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/power/reset/xgene-reboot.c:80:17: warning: assignment from incompatible pointer type [enabled by default] 1 ../drivers/irqchip/irq-gic-v3.c:203:12: warning: 'gic_peek_irq' defined but not used [-Wunused-function] 1 ../drivers/irqchip/irq-gic-v3.c:132:13: warning: 'gic_write_sgi1r' defined but not used [-Wunused-function] 1 ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined [enabled by default] 1 ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined [enabled by default] =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm64-allnoconfig : PASS, 0 errors, 3 warnings, 0 section mismatches Warnings: <stdin>:1244:2: warning: #warning syscall memfd_create not implemented [-Wcpp] ../drivers/irqchip/irq-gic-v3.c:132:13: warning: 'gic_write_sgi1r' defined but not used [-Wunused-function] ../drivers/irqchip/irq-gic-v3.c:203:12: warning: 'gic_peek_irq' defined but not used [-Wunused-function] ------------------------------------------------------------------------------- arm64-allmodconfig : PASS, 0 errors, 10 warnings, 0 section mismatches Warnings: <stdin>:1244:2: warning: #warning syscall memfd_create not implemented [-Wcpp] ../fs/cifs/misc.c:578:1: warning: 'cifs_oplock_break_wait' defined but not used [-Wunused-function] ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined [enabled by default] ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined [enabled by default] ../sound/soc/fsl/fsl_sai.c:337:7: warning: large integer implicitly truncated to unsigned type [-Woverflow] ../drivers/power/reset/xgene-reboot.c:80:17: warning: assignment from incompatible pointer type [enabled by default] ../drivers/staging/bcm/CmHost.c:1503:3: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/staging/bcm/CmHost.c:1546:3: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/staging/bcm/CmHost.c:1564:3: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] <stdin>:1244:2: warning: #warning syscall memfd_create not implemented [-Wcpp] ------------------------------------------------------------------------------- arm64-defconfig : PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: <stdin>:1244:2: warning: #warning syscall memfd_create not implemented [-Wcpp] <stdin>:1244:2: warning: #warning syscall memfd_create not implemented [-Wcpp] ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches:

12 years

mainline boot: 73 boots: 67 pass, 5 fail, 1 offline (v3.16-11452-g88ec63d)

by Kevin's boot bot

Status report database: http://status.armcloud.us/boot/all/job/mainline/kernel/v3.16-11452-g88ec63d/ Tree/Branch: mainline Git describe: v3.16-11452-g88ec63d Failed boot tests ================= omap3-n900: FAIL: arm-omap2plus_defconfig http://armcloud.us/kernel-ci/mainline/v3.16-11452-g88ec63d/arm-omap2plus_de… legacy,n900: FAIL: arm-omap2plus_defconfig http://armcloud.us/kernel-ci/mainline/v3.16-11452-g88ec63d/arm-omap2plus_de… omap3-n900: FAIL: arm-multi_v7_defconfig http://armcloud.us/kernel-ci/mainline/v3.16-11452-g88ec63d/arm-multi_v7_def… exynos5800-peach-pi: FAIL: arm-multi_v7_defconfig http://armcloud.us/kernel-ci/mainline/v3.16-11452-g88ec63d/arm-multi_v7_def… exynos5420-arndale-octa: FAIL: arm-exynos_defconfig http://armcloud.us/kernel-ci/mainline/v3.16-11452-g88ec63d/arm-exynos_defco… Offline boards (unable to connect to serial console) ==================================================== exynos5800-peach-pi: OFFLINE: arm-multi_v7_defconfig+CONFIG_ARM_LPAE=y Full Report =========== arm-shmobile_defconfig ---------------------- emev2-kzm9d 0 min 26.4 sec: PASS arm-davinci_all_defconfig ------------------------- legacy,dm365evm 0 min 19.5 sec: PASS da850-evm 0 min 19.5 sec: PASS arm-tegra_defconfig ------------------- tegra124-jetson-tk1 0 min 22.4 sec: PASS tegra30-beaver 0 min 18.2 sec: PASS arm-multi_v7_defconfig+CONFIG_ARM_LPAE=y ---------------------------------------- tegra124-jetson-tk1 0 min 22.5 sec: PASS sun7i-a20-cubieboard2 0 min 15.9 sec: PASS exynos5420-arndale-octa 0 min 48.9 sec: PASS armada-xp-openblocks-ax3-4 0 min 24.9 sec: PASS exynos5410-smdk5410 0 min 24.4 sec: PASS exynos5800-peach-pi 0 min 36.7 sec: OFFLINE omap5-uevm 1 min 0.5 sec: PASS (Warnings: 1) exynos5250-arndale 0 min 46.4 sec: PASS arm-mvebu_v7_defconfig+CONFIG_CPU_BIG_ENDIAN=y ---------------------------------------------- armada-xp-openblocks-ax3-4 0 min 24.4 sec: PASS armada-370-mirabox 0 min 21.3 sec: PASS arm-omap2plus_defconfig ----------------------- legacy,3730xm 0 min 52.5 sec: PASS am335x-boneblack 0 min 27.3 sec: PASS omap3-beagle-xm 1 min 3.8 sec: PASS legacy,3530beagle 0 min 38.6 sec: PASS (Warnings: 1) omap4-panda 1 min 11.5 sec: PASS omap3-overo-tobi 0 min 28.0 sec: PASS am335x-bone 0 min 30.0 sec: PASS omap3-overo-storm-tobi 0 min 25.3 sec: PASS omap5-uevm 1 min 12.3 sec: PASS (Warnings: 1) omap3-n900 0 min 33.4 sec: FAIL legacy,n900 0 min 33.7 sec: FAIL omap4-panda-es 1 min 9.5 sec: PASS legacy,3730storm 0 min 23.6 sec: PASS omap3-beagle 0 min 36.6 sec: PASS legacy,3530overo 0 min 26.2 sec: PASS (Warnings: 1) arm-multi_v7_defconfig ---------------------- imx6dl-wandboard,wand-solo 0 min 21.4 sec: PASS am335x-boneblack 0 min 26.1 sec: PASS sun7i-a20-cubieboard2 0 min 14.8 sec: PASS sun4i-a10-cubieboard 0 min 23.2 sec: PASS exynos5410-smdk5410 0 min 24.1 sec: PASS am335x-bone 0 min 29.2 sec: PASS tegra124-jetson-tk1 0 min 22.8 sec: PASS armada-370-mirabox 0 min 22.5 sec: PASS omap4-panda 0 min 53.3 sec: PASS imx6q-wandboard 0 min 19.4 sec: PASS imx6dl-wandboard,wand-dual 0 min 21.9 sec: PASS omap3-beagle 0 min 28.9 sec: PASS ste-snowball 0 min 31.9 sec: PASS tegra30-beaver 0 min 20.5 sec: PASS omap3-n900 0 min 33.6 sec: FAIL qcom-apq8074-dragonboard 0 min 21.9 sec: PASS bcm28155-ap 0 min 27.5 sec: PASS exynos5800-peach-pi 2 min 28.7 sec: FAIL omap3-overo-tobi 0 min 26.7 sec: PASS omap3-overo-storm-tobi 0 min 27.3 sec: PASS omap3-beagle-xm 1 min 4.7 sec: PASS exynos5420-arndale-octa 0 min 48.5 sec: PASS armada-xp-openblocks-ax3-4 0 min 25.9 sec: PASS omap5-uevm 1 min 1.5 sec: PASS (Warnings: 1) omap4-panda-es 0 min 55.2 sec: PASS exynos5250-arndale 0 min 45.5 sec: PASS arm-multi_v7_defconfig+CONFIG_CPU_BIG_ENDIAN=y ---------------------------------------------- armada-xp-openblocks-ax3-4 0 min 27.5 sec: PASS armada-370-mirabox 0 min 22.9 sec: PASS arm-qcom_defconfig ------------------ qcom-apq8074-dragonboard 0 min 21.9 sec: PASS arm-bcm_defconfig ----------------- bcm28155-ap 0 min 24.6 sec: PASS arm-exynos_defconfig -------------------- exynos5420-arndale-octa 0 min 30.0 sec: FAIL exynos5250-arndale 0 min 32.7 sec: PASS exynos5410-smdk5410 0 min 22.7 sec: PASS exynos5800-peach-pi 0 min 35.8 sec: PASS arm-imx_v6_v7_defconfig ----------------------- imx6dl-wandboard,wand-dual 0 min 22.3 sec: PASS imx6dl-wandboard,wand-solo 0 min 22.4 sec: PASS imx6q-wandboard 0 min 20.4 sec: PASS arm-u8500_defconfig ------------------- ste-snowball 0 min 31.1 sec: PASS arm-sunxi_defconfig ------------------- sun7i-a20-cubieboard2 0 min 13.2 sec: PASS sun4i-a10-cubieboard 0 min 15.7 sec: PASS arm-mvebu_v7_defconfig ---------------------- armada-xp-openblocks-ax3-4 0 min 23.0 sec: PASS armada-370-mirabox 0 min 20.8 sec: PASS arm-sama5_defconfig ------------------- sama5d35ek 0 min 17.6 sec: PASS

12 years

Random MAC address on my BeagleBone White

by Steven Rostedt

Hi, I'm using my BeagleBone White to debug some ftrace code and with the help from people like Robert Nelson I was finally able to boot it and test my kernel. But I'm still having some other issues. The most annoying one is that the new kernel assigns some random MAC address to my NIC and I can't give my board the proper IP address via DHCP. Seems there was talk about adding this via the device tree, but it was rejected because U-Boot can do it. The problem I have is that U-Boot doesn't! I downloaded the latest U-Boot from git://git.denx.de/u-boot.git (Is that the right place?) and had to tweak it so that I can boot a kernel via tftp and still use the filesystem on the SD card. When I place the 3.2 kernel that came with the board on my tftp server, all works fine. I get the same MAC addr each boot and things just work. But if I place the 3.16 kernel that I build on the tftp server, I get some random MAC address, and then a dynamic IP to go with it :-( This is in my dmesg: [ 2.304970] cpsw 4a100000.ethernet: Random MACID = 8a:fc:f5:aa:b6:e1 I can also see in the file arch/arm/boot/dts/am33xx.dtsi: cpsw_emac0: slave@4a100200 { /* Filled in by U-Boot */ mac-address = [ 00 00 00 00 00 00 ]; }; Well, it's not filled in by U-Boot. My question to all of you is, how do I fix this? I need a static mac addr. One way is that I might have to update that file myself with a temp patch, but I think that's a hack and not something worth doing. What's the proper way to have the board always come up with the same MAC addr? Thanks, this is rather annoying. -- Steve

12 years

[PATCH v5 0/3] arm64: Add seccomp support

by AKASHI Takahiro

(Please apply this patch after my audit patch in order to avoid some conflict on arm64/Kconfig.) This patch enables secure computing (system call filtering) on arm64. System calls can be allowed or denied by loaded bpf-style rules. Architecture specific part is to run secure_computing() on syscall entry and check the result. See [3/3] Prerequisites are: * "arm64: Add audit support" patch This code is tested on ARMv8 fast model using * libseccomp v2.1.1 with modifications for arm64 and verified by its "live" tests, 20, 21 and 24. * modified version of Kees' seccomp test for 'changing/skipping a syscall' behavior Changes v4 -> v5: * rebased to v3.16-rc * add patch [1/3] to allow ptrace to change a system call (please note that this patch should be applied even without seccomp.) Changes v3 -> v4: * removed the following patch and moved it to "arm64: prerequisites for audit and ftrace" patchset since it is required for audit and ftrace in case of !COMPAT, too. "arm64: is_compat_task is defined both in asm/compat.h and linux/compat.h" Changes v2 -> v3: * removed unnecessary 'type cast' operations [2/3] * check for a return value (-1) of secure_computing() explicitly [2/3] * aligned with the patch, "arm64: split syscall_trace() into separate functions for enter/exit" [2/3] * changed default of CONFIG_SECCOMP to n [2/3] Changes v1 -> v2: * added generic seccomp.h for arm64 to utilize it [1,2/3] * changed syscall_trace() to return more meaningful value (-EPERM) on seccomp failure case [2/3] * aligned with the change in "arm64: make a single hook to syscall_trace() for all syscall features" v2 [2/3] * removed is_compat_task() definition from compat.h [3/3] AKASHI Takahiro (3): arm64: ptrace: reload a syscall number after ptrace operations asm-generic: Add generic seccomp.h for secure computing mode 1 arm64: Add seccomp support arch/arm64/Kconfig | 14 ++++++++++++++ arch/arm64/include/asm/seccomp.h | 25 +++++++++++++++++++++++++ arch/arm64/include/asm/unistd.h | 3 +++ arch/arm64/kernel/entry.S | 2 ++ arch/arm64/kernel/ptrace.c | 18 ++++++++++++++++++ include/asm-generic/seccomp.h | 28 ++++++++++++++++++++++++++++ 6 files changed, 90 insertions(+) create mode 100644 arch/arm64/include/asm/seccomp.h create mode 100644 include/asm-generic/seccomp.h -- 1.7.9.5

12 years

next-20140815 build: 1 failures 11 warnings (next-20140815)

by Build bot for Mark Brown

Tree/Branch: next-20140815 Git describe: next-20140815 Commit: 7bef919141 Add linux-next specific files for 20140815 Build Time: 49 min 38 sec Passed: 2 / 3 ( 66.67 %) Failed: 1 / 3 ( 33.33 %) Errors: 1 Warnings: 11 Section Mismatches: 0 Failed defconfigs: arm64-allmodconfig Errors: arm64-allmodconfig ../arch/arm64/kernel/ptrace.c:1120:3: error: too many arguments to function 'audit_syscall_entry' ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 3 warnings 0 mismatches : arm64-allnoconfig 8 warnings 0 mismatches : arm64-allmodconfig 3 warnings 0 mismatches : arm64-defconfig ------------------------------------------------------------------------------- Errors summary: 1 1 ../arch/arm64/kernel/ptrace.c:1120:3: error: too many arguments to function 'audit_syscall_entry' Warnings Summary: 11 4 <stdin>:1244:2: warning: #warning syscall memfd_create not implemented [-Wcpp] 1 ../sound/soc/fsl/fsl_sai.c:337:7: warning: large integer implicitly truncated to unsigned type [-Woverflow] 1 ../kernel/rcu/tree_plugin.h:2668:123: warning: 'rcu_organize_nocb_kthreads' defined but not used [-Wunused-function] 1 ../drivers/staging/bcm/CmHost.c:1564:3: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/staging/bcm/CmHost.c:1546:3: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/staging/bcm/CmHost.c:1503:3: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/power/reset/xgene-reboot.c:80:17: warning: assignment from incompatible pointer type [enabled by default] 1 ../drivers/irqchip/irq-gic-v3.c:203:12: warning: 'gic_peek_irq' defined but not used [-Wunused-function] 1 ../drivers/irqchip/irq-gic-v3.c:132:13: warning: 'gic_write_sgi1r' defined but not used [-Wunused-function] 1 ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined [enabled by default] 1 ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined [enabled by default] =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm64-allnoconfig : PASS, 0 errors, 3 warnings, 0 section mismatches Warnings: <stdin>:1244:2: warning: #warning syscall memfd_create not implemented [-Wcpp] ../drivers/irqchip/irq-gic-v3.c:132:13: warning: 'gic_write_sgi1r' defined but not used [-Wunused-function] ../drivers/irqchip/irq-gic-v3.c:203:12: warning: 'gic_peek_irq' defined but not used [-Wunused-function] ------------------------------------------------------------------------------- arm64-allmodconfig : FAIL, 1 errors, 8 warnings, 0 section mismatches Errors: ../arch/arm64/kernel/ptrace.c:1120:3: error: too many arguments to function 'audit_syscall_entry' Warnings: <stdin>:1244:2: warning: #warning syscall memfd_create not implemented [-Wcpp] ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined [enabled by default] ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined [enabled by default] ../sound/soc/fsl/fsl_sai.c:337:7: warning: large integer implicitly truncated to unsigned type [-Woverflow] ../drivers/power/reset/xgene-reboot.c:80:17: warning: assignment from incompatible pointer type [enabled by default] ../drivers/staging/bcm/CmHost.c:1503:3: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/staging/bcm/CmHost.c:1546:3: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/staging/bcm/CmHost.c:1564:3: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ------------------------------------------------------------------------------- arm64-defconfig : PASS, 0 errors, 3 warnings, 0 section mismatches Warnings: <stdin>:1244:2: warning: #warning syscall memfd_create not implemented [-Wcpp] ../kernel/rcu/tree_plugin.h:2668:123: warning: 'rcu_organize_nocb_kthreads' defined but not used [-Wunused-function] <stdin>:1244:2: warning: #warning syscall memfd_create not implemented [-Wcpp] ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches:

12 years

master build: 0 failures 12 warnings (v3.16-11383-gc9d2642)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v3.16-11383-gc9d2642 Commit: c9d26423e5 Merge tag 'pm+acpi-3.17-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm Build Time: 61 min 38 sec Passed: 3 / 3 (100.00 %) Failed: 0 / 3 ( 0.00 %) Errors: 0 Warnings: 12 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 3 warnings 0 mismatches : arm64-allnoconfig 11 warnings 0 mismatches : arm64-allmodconfig 2 warnings 0 mismatches : arm64-defconfig ------------------------------------------------------------------------------- Warnings Summary: 12 5 <stdin>:1244:2: warning: #warning syscall memfd_create not implemented [-Wcpp] 1 ../sound/soc/fsl/fsl_sai.c:337:7: warning: large integer implicitly truncated to unsigned type [-Woverflow] 1 ../fs/cifs/misc.c:578:1: warning: 'cifs_oplock_break_wait' defined but not used [-Wunused-function] 1 ../drivers/staging/bcm/CmHost.c:1564:3: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/staging/bcm/CmHost.c:1546:3: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/staging/bcm/CmHost.c:1503:3: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/power/reset/xgene-reboot.c:80:17: warning: assignment from incompatible pointer type [enabled by default] 1 ../drivers/irqchip/irq-gic-v3.c:203:12: warning: 'gic_peek_irq' defined but not used [-Wunused-function] 1 ../drivers/irqchip/irq-gic-v3.c:132:13: warning: 'gic_write_sgi1r' defined but not used [-Wunused-function] 1 ../drivers/input/joystick/analog.c:171:2: warning: #warning Precise timer not defined for this architecture. [-Wcpp] 1 ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined [enabled by default] 1 ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined [enabled by default] =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm64-allnoconfig : PASS, 0 errors, 3 warnings, 0 section mismatches Warnings: <stdin>:1244:2: warning: #warning syscall memfd_create not implemented [-Wcpp] ../drivers/irqchip/irq-gic-v3.c:132:13: warning: 'gic_write_sgi1r' defined but not used [-Wunused-function] ../drivers/irqchip/irq-gic-v3.c:203:12: warning: 'gic_peek_irq' defined but not used [-Wunused-function] ------------------------------------------------------------------------------- arm64-allmodconfig : PASS, 0 errors, 11 warnings, 0 section mismatches Warnings: <stdin>:1244:2: warning: #warning syscall memfd_create not implemented [-Wcpp] ../fs/cifs/misc.c:578:1: warning: 'cifs_oplock_break_wait' defined but not used [-Wunused-function] ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined [enabled by default] ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined [enabled by default] ../sound/soc/fsl/fsl_sai.c:337:7: warning: large integer implicitly truncated to unsigned type [-Woverflow] ../drivers/input/joystick/analog.c:171:2: warning: #warning Precise timer not defined for this architecture. [-Wcpp] ../drivers/power/reset/xgene-reboot.c:80:17: warning: assignment from incompatible pointer type [enabled by default] ../drivers/staging/bcm/CmHost.c:1503:3: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/staging/bcm/CmHost.c:1546:3: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/staging/bcm/CmHost.c:1564:3: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] <stdin>:1244:2: warning: #warning syscall memfd_create not implemented [-Wcpp] ------------------------------------------------------------------------------- arm64-defconfig : PASS, 0 errors, 2 warnings, 0 section mismatches Warnings: <stdin>:1244:2: warning: #warning syscall memfd_create not implemented [-Wcpp] <stdin>:1244:2: warning: #warning syscall memfd_create not implemented [-Wcpp] ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: close failed in file object destructor: sys.excepthook is missing lost sys.stderr

12 years

next boot: 73 boots: 70 pass, 2 fail, 1 offline (next-20140815)

by Kevin's boot bot

Status report database: http://status.armcloud.us/boot/all/job/next/kernel/next-20140815/ Tree/Branch: next Git describe: next-20140815 Failed boot tests ================= exynos5420-arndale-octa: FAIL: arm-exynos_defconfig http://armcloud.us/kernel-ci/next/next-20140815/arm-exynos_defconfig/boot-e… exynos5800-peach-pi: FAIL: arm-exynos_defconfig http://armcloud.us/kernel-ci/next/next-20140815/arm-exynos_defconfig/boot-e… Offline boards (unable to connect to serial console) ==================================================== exynos5800-peach-pi: OFFLINE: arm-multi_v7_defconfig Full Report =========== arm-shmobile_defconfig ---------------------- emev2-kzm9d 0 min 25.3 sec: PASS arm-davinci_all_defconfig ------------------------- legacy,dm365evm 0 min 18.7 sec: PASS da850-evm 0 min 16.6 sec: PASS arm-tegra_defconfig ------------------- tegra124-jetson-tk1 0 min 39.6 sec: PASS tegra30-beaver 0 min 18.2 sec: PASS arm-multi_v7_defconfig+CONFIG_ARM_LPAE=y ---------------------------------------- tegra124-jetson-tk1 0 min 22.6 sec: PASS sun7i-a20-cubieboard2 0 min 13.7 sec: PASS exynos5420-arndale-octa 1 min 17.1 sec: PASS armada-xp-openblocks-ax3-4 0 min 24.9 sec: PASS exynos5410-smdk5410 0 min 23.5 sec: PASS exynos5800-peach-pi 0 min 53.5 sec: PASS omap5-uevm 1 min 0.4 sec: PASS (Warnings: 1) exynos5250-arndale 0 min 51.3 sec: PASS arm-mvebu_v7_defconfig+CONFIG_CPU_BIG_ENDIAN=y ---------------------------------------------- armada-xp-openblocks-ax3-4 0 min 24.5 sec: PASS armada-370-mirabox 0 min 21.3 sec: PASS arm-omap2plus_defconfig ----------------------- legacy,3730xm 0 min 51.1 sec: PASS am335x-boneblack 0 min 26.4 sec: PASS omap3-beagle-xm 1 min 3.4 sec: PASS legacy,3530beagle 0 min 38.9 sec: PASS (Warnings: 1) omap4-panda 1 min 7.2 sec: PASS omap3-overo-tobi 0 min 26.3 sec: PASS am335x-bone 0 min 28.1 sec: PASS omap3-overo-storm-tobi 0 min 27.1 sec: PASS omap5-uevm 1 min 6.4 sec: PASS (Warnings: 1) omap3-n900 0 min 17.9 sec: PASS legacy,n900 0 min 17.6 sec: PASS (Warnings: 2) omap4-panda-es 1 min 7.3 sec: PASS legacy,3730storm 0 min 25.1 sec: PASS omap3-beagle 0 min 35.6 sec: PASS legacy,3530overo 0 min 24.9 sec: PASS (Warnings: 1) arm-multi_v7_defconfig ---------------------- imx6dl-wandboard,wand-solo 0 min 19.4 sec: PASS am335x-boneblack 0 min 24.8 sec: PASS sun7i-a20-cubieboard2 0 min 13.8 sec: PASS sun4i-a10-cubieboard 0 min 20.6 sec: PASS exynos5410-smdk5410 0 min 23.1 sec: PASS am335x-bone 0 min 27.5 sec: PASS tegra124-jetson-tk1 0 min 22.5 sec: PASS armada-370-mirabox 0 min 22.5 sec: PASS omap4-panda 0 min 58.4 sec: PASS imx6q-wandboard 0 min 18.5 sec: PASS imx6dl-wandboard,wand-dual 0 min 19.6 sec: PASS omap3-beagle 0 min 26.2 sec: PASS ste-snowball 0 min 31.5 sec: PASS tegra30-beaver 0 min 20.9 sec: PASS omap3-n900 0 min 17.6 sec: PASS qcom-apq8074-dragonboard 0 min 19.7 sec: PASS bcm28155-ap 0 min 27.7 sec: PASS exynos5800-peach-pi 0 min 35.7 sec: OFFLINE omap3-overo-tobi 0 min 26.1 sec: PASS omap3-overo-storm-tobi 0 min 28.0 sec: PASS omap3-beagle-xm 1 min 4.5 sec: PASS exynos5420-arndale-octa 0 min 46.8 sec: PASS armada-xp-openblocks-ax3-4 0 min 26.0 sec: PASS omap5-uevm 1 min 2.4 sec: PASS (Warnings: 1) omap4-panda-es 0 min 58.0 sec: PASS exynos5250-arndale 0 min 49.2 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 23.0 sec: PASS arm-qcom_defconfig ------------------ qcom-apq8074-dragonboard 0 min 19.3 sec: PASS arm-bcm_defconfig ----------------- bcm28155-ap 0 min 23.6 sec: PASS arm-exynos_defconfig -------------------- exynos5420-arndale-octa 0 min 31.0 sec: FAIL exynos5250-arndale 0 min 31.8 sec: PASS exynos5410-smdk5410 0 min 21.3 sec: PASS exynos5800-peach-pi 2 min 24.6 sec: FAIL arm-imx_v6_v7_defconfig ----------------------- imx6dl-wandboard,wand-dual 0 min 20.2 sec: PASS imx6dl-wandboard,wand-solo 0 min 20.4 sec: PASS imx6q-wandboard 0 min 19.0 sec: PASS arm-u8500_defconfig ------------------- ste-snowball 0 min 31.1 sec: PASS arm-sunxi_defconfig ------------------- sun7i-a20-cubieboard2 0 min 12.2 sec: PASS sun4i-a10-cubieboard 0 min 14.6 sec: PASS arm-mvebu_v7_defconfig ---------------------- armada-xp-openblocks-ax3-4 0 min 23.0 sec: PASS armada-370-mirabox 0 min 20.8 sec: PASS arm-sama5_defconfig ------------------- sama5d35ek 0 min 17.6 sec: PASS

12 years

mainline boot: 73 boots: 70 pass, 2 fail, 1 offline (v3.16-11383-gc9d2642)

by Kevin's boot bot

Status report database: http://status.armcloud.us/boot/all/job/mainline/kernel/v3.16-11383-gc9d2642/ Tree/Branch: mainline Git describe: v3.16-11383-gc9d2642 Failed boot tests ================= exynos5420-arndale-octa: FAIL: arm-exynos_defconfig http://armcloud.us/kernel-ci/mainline/v3.16-11383-gc9d2642/arm-exynos_defco… exynos5800-peach-pi: FAIL: arm-exynos_defconfig http://armcloud.us/kernel-ci/mainline/v3.16-11383-gc9d2642/arm-exynos_defco… Offline boards (unable to connect to serial console) ==================================================== exynos5800-peach-pi: OFFLINE: arm-multi_v7_defconfig Full Report =========== arm-shmobile_defconfig ---------------------- emev2-kzm9d 0 min 25.1 sec: PASS arm-davinci_all_defconfig ------------------------- legacy,dm365evm 0 min 18.5 sec: PASS da850-evm 0 min 16.5 sec: PASS arm-tegra_defconfig ------------------- tegra124-jetson-tk1 0 min 22.5 sec: PASS tegra30-beaver 0 min 18.2 sec: PASS arm-multi_v7_defconfig+CONFIG_ARM_LPAE=y ---------------------------------------- tegra124-jetson-tk1 0 min 22.6 sec: PASS sun7i-a20-cubieboard2 0 min 13.8 sec: PASS exynos5420-arndale-octa 0 min 46.9 sec: PASS armada-xp-openblocks-ax3-4 0 min 25.1 sec: PASS exynos5410-smdk5410 0 min 23.1 sec: PASS exynos5800-peach-pi 0 min 55.4 sec: PASS omap5-uevm 1 min 0.8 sec: PASS (Warnings: 1) exynos5250-arndale 0 min 44.9 sec: PASS arm-mvebu_v7_defconfig+CONFIG_CPU_BIG_ENDIAN=y ---------------------------------------------- armada-xp-openblocks-ax3-4 0 min 24.5 sec: PASS armada-370-mirabox 0 min 21.4 sec: PASS arm-omap2plus_defconfig ----------------------- legacy,3730xm 0 min 58.6 sec: PASS am335x-boneblack 0 min 26.6 sec: PASS omap3-beagle-xm 1 min 1.2 sec: PASS legacy,3530beagle 0 min 36.4 sec: PASS (Warnings: 1) omap4-panda 1 min 7.8 sec: PASS omap3-overo-tobi 0 min 26.1 sec: PASS am335x-bone 0 min 28.0 sec: PASS omap3-overo-storm-tobi 0 min 24.2 sec: PASS omap5-uevm 1 min 10.1 sec: PASS (Warnings: 1) omap3-n900 0 min 18.3 sec: PASS legacy,n900 0 min 18.2 sec: PASS (Warnings: 2) omap4-panda-es 1 min 7.3 sec: PASS legacy,3730storm 0 min 22.3 sec: PASS omap3-beagle 0 min 38.8 sec: PASS legacy,3530overo 0 min 24.4 sec: PASS (Warnings: 1) arm-multi_v7_defconfig ---------------------- imx6dl-wandboard,wand-solo 0 min 19.3 sec: PASS am335x-boneblack 0 min 24.8 sec: PASS sun7i-a20-cubieboard2 0 min 13.7 sec: PASS sun4i-a10-cubieboard 0 min 20.4 sec: PASS exynos5410-smdk5410 0 min 23.3 sec: PASS am335x-bone 0 min 27.5 sec: PASS tegra124-jetson-tk1 0 min 22.6 sec: PASS armada-370-mirabox 0 min 22.5 sec: PASS omap4-panda 0 min 56.3 sec: PASS imx6q-wandboard 0 min 17.7 sec: PASS imx6dl-wandboard,wand-dual 0 min 19.5 sec: PASS omap3-beagle 0 min 27.6 sec: PASS ste-snowball 0 min 31.7 sec: PASS tegra30-beaver 0 min 26.1 sec: PASS omap3-n900 0 min 17.6 sec: PASS qcom-apq8074-dragonboard 0 min 19.5 sec: PASS bcm28155-ap 0 min 27.3 sec: PASS exynos5800-peach-pi 0 min 35.7 sec: OFFLINE omap3-overo-tobi 0 min 24.8 sec: PASS omap3-overo-storm-tobi 0 min 23.2 sec: PASS omap3-beagle-xm 1 min 7.0 sec: PASS exynos5420-arndale-octa 0 min 46.6 sec: PASS armada-xp-openblocks-ax3-4 0 min 25.9 sec: PASS omap5-uevm 0 min 59.1 sec: PASS (Warnings: 1) omap4-panda-es 0 min 58.2 sec: PASS exynos5250-arndale 0 min 45.1 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 23.2 sec: PASS arm-qcom_defconfig ------------------ qcom-apq8074-dragonboard 0 min 18.5 sec: PASS arm-bcm_defconfig ----------------- bcm28155-ap 0 min 25.0 sec: PASS arm-exynos_defconfig -------------------- exynos5420-arndale-octa 0 min 29.2 sec: FAIL exynos5250-arndale 0 min 31.4 sec: PASS exynos5410-smdk5410 0 min 21.6 sec: PASS exynos5800-peach-pi 1 min 46.2 sec: FAIL arm-imx_v6_v7_defconfig ----------------------- imx6dl-wandboard,wand-dual 0 min 20.3 sec: PASS imx6dl-wandboard,wand-solo 0 min 20.5 sec: PASS imx6q-wandboard 0 min 18.9 sec: PASS arm-u8500_defconfig ------------------- ste-snowball 0 min 34.5 sec: PASS arm-sunxi_defconfig ------------------- sun7i-a20-cubieboard2 0 min 12.8 sec: PASS sun4i-a10-cubieboard 0 min 14.3 sec: PASS arm-mvebu_v7_defconfig ---------------------- armada-xp-openblocks-ax3-4 0 min 23.2 sec: PASS armada-370-mirabox 0 min 20.8 sec: PASS arm-sama5_defconfig ------------------- sama5d35ek 0 min 17.5 sec: PASS

12 years

[PATCH] Exynos4: cpuidle: support dual CPUs with AFTR state

by Daniel Lezcano

The following driver is for exynos4210. I did not yet finished the other boards, so I created a specific driver for 4210 which could be merged later. The driver is based on Colin Cross's driver found at: https://android.googlesource.com/kernel/exynos/+/e686b1ec67423c40b4fdf811f9… This one was based on a 3.4 kernel and an old API. It has been refreshed, simplified and based on the recent code cleanup I sent today. The AFTR could be entered when all the cpus (except cpu0) are down. In order to reach this situation, the couple idle states are used. There is a sync barrier at the entry and the exit of the low power function. So all cpus will enter and exit the function at the same time. At this point, CPU0 knows the other cpu will power down itself. CPU0 waits for the CPU1 to be powered down and then initiate the AFTR power down sequence. No interrupts are handled by CPU1, this is why we switch to the timer broadcast even if the local timer is not impacted by the idle state. When CPU0 wakes up, it powers up CPU1 and waits for it to boot. Then they both exit the idle function. This driver allows the exynos4210 to have the same power consumption at idle time than the one when we have to unplug CPU1 in order to let CPU0 to reach the AFTR state. This patch is a RFC because, we have to find a way to remove the macros definitions and cpu powerdown function without pulling the arch dependent headers. Signed-off-by: Daniel Lezcano <daniel.lezcano(a)linaro.org> --- arch/arm/mach-exynos/common.c | 11 +- drivers/cpuidle/Kconfig.arm | 8 ++ drivers/cpuidle/Makefile | 1 + drivers/cpuidle/cpuidle-exynos4210.c | 226 ++++++++++++++++++++++++++++++++++ 4 files changed, 245 insertions(+), 1 deletion(-) create mode 100644 drivers/cpuidle/cpuidle-exynos4210.c diff --git a/arch/arm/mach-exynos/common.c b/arch/arm/mach-exynos/common.c index d5fa21e..1765a98 100644 --- a/arch/arm/mach-exynos/common.c +++ b/arch/arm/mach-exynos/common.c @@ -299,9 +299,18 @@ static struct platform_device exynos_cpuidle = { .id = -1, }; +static struct platform_device exynos4210_cpuidle = { + .name = "exynos4210-cpuidle", + .dev.platform_data = exynos_sys_powerdown_aftr, + .id = -1, +}; + void __init exynos_cpuidle_init(void) { - platform_device_register(&exynos_cpuidle); + if (soc_is_exynos4210()) + platform_device_register(&exynos4210_cpuidle); + else + platform_device_register(&exynos_cpuidle); } void __init exynos_cpufreq_init(void) diff --git a/drivers/cpuidle/Kconfig.arm b/drivers/cpuidle/Kconfig.arm index 92f0c12..2772130 100644 --- a/drivers/cpuidle/Kconfig.arm +++ b/drivers/cpuidle/Kconfig.arm @@ -51,3 +51,11 @@ config ARM_EXYNOS_CPUIDLE depends on ARCH_EXYNOS help Select this to enable cpuidle for Exynos processors + +config ARM_EXYNOS4210_CPUIDLE + bool "Cpu Idle Driver for the Exynos 4210 processor" + default y + depends on ARCH_EXYNOS + select ARCH_NEEDS_CPU_IDLE_COUPLED if SMP + help + Select this to enable cpuidle for the Exynos 4210 processors diff --git a/drivers/cpuidle/Makefile b/drivers/cpuidle/Makefile index 0d1540a..e0ec9bc 100644 --- a/drivers/cpuidle/Makefile +++ b/drivers/cpuidle/Makefile @@ -14,6 +14,7 @@ obj-$(CONFIG_ARM_ZYNQ_CPUIDLE) += cpuidle-zynq.o obj-$(CONFIG_ARM_U8500_CPUIDLE) += cpuidle-ux500.o obj-$(CONFIG_ARM_AT91_CPUIDLE) += cpuidle-at91.o obj-$(CONFIG_ARM_EXYNOS_CPUIDLE) += cpuidle-exynos.o +obj-$(CONFIG_ARM_EXYNOS4210_CPUIDLE) += cpuidle-exynos4210.o ############################################################################### # POWERPC drivers diff --git a/drivers/cpuidle/cpuidle-exynos4210.c b/drivers/cpuidle/cpuidle-exynos4210.c new file mode 100644 index 0000000..56f6d51 --- /dev/null +++ b/drivers/cpuidle/cpuidle-exynos4210.c @@ -0,0 +1,226 @@ +/* + * Copyright (c) 2014 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * + * Copyright (c) 2014 Linaro : Daniel Lezcano <daniel.lezcano(a)linaro.org> + * http://www.linaro.org + * + * Based on the work of Colin Cross <ccross(a)android.com> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + */ + +#include <linux/cpuidle.h> +#include <linux/cpu_pm.h> +#include <linux/io.h> +#include <linux/platform_device.h> + +#include <asm/proc-fns.h> +#include <asm/suspend.h> +#include <asm/cpuidle.h> + +#include <plat/pm.h> +#include <plat/cpu.h> +#include <plat/map-base.h> +#include <plat/map-s5p.h> + +static atomic_t exynos_idle_barrier; +static atomic_t cpu1_wakeup = ATOMIC_INIT(0); + +#define BOOT_VECTOR S5P_VA_SYSRAM +#define S5P_VA_PMU S3C_ADDR(0x02180000) +#define S5P_PMUREG(x) (S5P_VA_PMU + (x)) +#define S5P_ARM_CORE1_CONFIGURATION S5P_PMUREG(0x2080) +#define S5P_ARM_CORE1_STATUS S5P_PMUREG(0x2084) + +static void (*exynos_aftr)(void); + +static int cpu_suspend_finish(unsigned long flags) +{ + if (flags) + exynos_aftr(); + + cpu_do_idle(); + + return -1; +} + +static int exynos_cpu0_enter_aftr(void) +{ + int ret = -1; + + /* + * If the other cpu is powered on, we have to power it off, because + * the AFTR state won't work otherwise + */ + if (cpu_online(1)) { + + /* + * We reach a sync point with the coupled idle state, we know + * the other cpu will power down itself or will abort the + * sequence, let's wait for one of these to happen + */ + while (__raw_readl(S5P_ARM_CORE1_STATUS) & 3) { + + /* + * The other cpu may skip idle and boot back + * up again + */ + if (atomic_read(&cpu1_wakeup)) + goto abort; + + /* + * The other cpu may bounce through idle and + * boot back up again, getting stuck in the + * boot rom code + */ + if (__raw_readl(BOOT_VECTOR) == 0) + goto abort; + + cpu_relax(); + } + } + + cpu_pm_enter(); + + ret = cpu_suspend(1, cpu_suspend_finish); + + cpu_pm_exit(); + +abort: + if (cpu_online(1)) { + /* + * Set the boot vector to something non-zero + */ + __raw_writel(virt_to_phys(s3c_cpu_resume), + BOOT_VECTOR); + dsb(); + + /* + * Turn on cpu1 and wait for it to be on + */ + __raw_writel(0x3, S5P_ARM_CORE1_CONFIGURATION); + while ((__raw_readl(S5P_ARM_CORE1_STATUS) & 3) != 3) + cpu_relax(); + + /* + * Wait for cpu1 to get stuck in the boot rom + */ + while ((__raw_readl(BOOT_VECTOR) != 0) && + !atomic_read(&cpu1_wakeup)) + cpu_relax(); + + if (!atomic_read(&cpu1_wakeup)) { + /* + * Poke cpu1 out of the boot rom + */ + __raw_writel(virt_to_phys(s3c_cpu_resume), + BOOT_VECTOR); + dsb_sev(); + } + + /* + * Wait for cpu1 to finish booting + */ + while (!atomic_read(&cpu1_wakeup)) + cpu_relax(); + } + + return ret; +} + +static int exynos_powerdown_cpu1(void) +{ + int ret = -1; + + /* + * Idle sequence for cpu1 + */ + if (cpu_pm_enter()) + goto cpu1_aborted; + + /* + * Turn off cpu 1 + */ + __raw_writel(0, S5P_ARM_CORE1_CONFIGURATION); + + ret = cpu_suspend(0, cpu_suspend_finish); + + cpu_pm_exit(); + +cpu1_aborted: + dsb(); + /* + * Notify cpu 0 that cpu 1 is awake + */ + atomic_set(&cpu1_wakeup, 1); + + return ret; +} + +static int exynos_enter_aftr(struct cpuidle_device *dev, + struct cpuidle_driver *drv, int index) +{ + int ret; + + __raw_writel(virt_to_phys(s3c_cpu_resume), BOOT_VECTOR); + + /* + * Waiting all cpus to reach this point at the same moment + */ + cpuidle_coupled_parallel_barrier(dev, &exynos_idle_barrier); + + /* + * Both cpus will reach this point at the same time + */ + ret = dev->cpu ? exynos_powerdown_cpu1() : exynos_cpu0_enter_aftr(); + if (ret) + index = ret; + + /* + * Waiting all cpus to finish the power sequence before going further + */ + cpuidle_coupled_parallel_barrier(dev, &exynos_idle_barrier); + + atomic_set(&cpu1_wakeup, 0); + + return index; +} + +static struct cpuidle_driver exynos_idle_driver = { + .name = "exynos4210_idle", + .owner = THIS_MODULE, + .states = { + ARM_CPUIDLE_WFI_STATE, + [1] = { + .enter = exynos_enter_aftr, + .exit_latency = 5000, + .target_residency = 10000, + .flags = CPUIDLE_FLAG_TIME_VALID | + CPUIDLE_FLAG_COUPLED | CPUIDLE_FLAG_TIMER_STOP, + .name = "C1", + .desc = "ARM power down", + }, + }, + .state_count = 2, + .safe_state_index = 0, +}; + +static int exynos_cpuidle_probe(struct platform_device *pdev) +{ + exynos_aftr = (void *)(pdev->dev.platform_data); + + return cpuidle_register(&exynos_idle_driver, cpu_possible_mask); +} + +static struct platform_driver exynos_cpuidle_driver = { + .driver = { + .name = "exynos4210-cpuidle", + .owner = THIS_MODULE, + }, + .probe = exynos_cpuidle_probe, +}; + +module_platform_driver(exynos_cpuidle_driver); -- 1.7.9.5

12 years

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