linaro-kernel April 2015

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master build: 0 failures 21 warnings (v4.0-rc6-114-g4e8a4830dc9f)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v4.0-rc6-114-g4e8a4830dc9f Commit: 4e8a4830dc Merge tag 'irqchip-fixes-4.0-2' of git://git.infradead.org/users/jcooper/linux Build Time: 18 min 8 sec Passed: 8 / 8 (100.00 %) Failed: 0 / 8 ( 0.00 %) Errors: 0 Warnings: 21 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 17 warnings 0 mismatches : arm64-allmodconfig 6 warnings 0 mismatches : arm-allmodconfig ------------------------------------------------------------------------------- Warnings Summary: 21 2 ../drivers/staging/sm7xxfb/sm7xxfb.c:117:19: warning: 'sm7xx_vga_setup' defined but not used [-Wunused-function] 2 ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] 1 ../sound/soc/samsung/dmaengine.c:60:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../sound/soc/samsung/dmaengine.c:53:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1480 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../drivers/usb/renesas_usbhs/common.c:482:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/staging/fbtft/fbtft-io.c:63:4: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' [-Wformat=] 1 ../drivers/staging/fbtft/fbtft-io.c:110:5: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' [-Wformat=] 1 ../drivers/staging/fbtft/fbtft-core.c:1004:4: warning: format '%d' expects argument of type 'int', but argument 3 has type 'size_t' [-Wformat=] 1 ../drivers/staging/dgap/dgap.h:124:0: warning: "PCI_IO_SIZE" redefined 1 ../drivers/spi/spi-s3c64xx.c:336:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/spi/spi-s3c64xx.c:327:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/net/ethernet/dec/tulip/winbond-840.c:910:2: warning: #warning Processor architecture undefined [-Wcpp] 1 ../drivers/net/ethernet/dec/tulip/tulip_core.c:101:2: warning: #warning Processor architecture undefined! [-Wcpp] 1 ../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1208 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../drivers/infiniband/hw/qib/qib_qp.c:44:0: warning: "BITS_PER_PAGE" redefined 1 ../drivers/gpio/gpio-74xx-mmio.c:132:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined 1 ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined 1 ../arch/arm/mach-cns3xxx/pcie.c:266:1: warning: the frame size of 1080 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../arch/arm/include/asm/cmpxchg.h:205:3: warning: value computed is not used [-Wunused-value] =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm64-allmodconfig : PASS, 0 errors, 17 warnings, 0 section mismatches Warnings: ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined ../drivers/gpio/gpio-74xx-mmio.c:132:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../sound/soc/samsung/dmaengine.c:53:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../sound/soc/samsung/dmaengine.c:60:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/infiniband/hw/qib/qib_qp.c:44:0: warning: "BITS_PER_PAGE" redefined ../drivers/spi/spi-s3c64xx.c:327:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/spi/spi-s3c64xx.c:336:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/net/ethernet/dec/tulip/winbond-840.c:910:2: warning: #warning Processor architecture undefined [-Wcpp] ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] ../drivers/net/ethernet/dec/tulip/tulip_core.c:101:2: warning: #warning Processor architecture undefined! [-Wcpp] ../drivers/staging/dgap/dgap.h:124:0: warning: "PCI_IO_SIZE" redefined ../drivers/staging/fbtft/fbtft-core.c:1004:4: warning: format '%d' expects argument of type 'int', but argument 3 has type 'size_t' [-Wformat=] ../drivers/staging/fbtft/fbtft-io.c:63:4: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' [-Wformat=] ../drivers/staging/fbtft/fbtft-io.c:110:5: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' [-Wformat=] ../drivers/usb/renesas_usbhs/common.c:482:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../drivers/staging/sm7xxfb/sm7xxfb.c:117:19: warning: 'sm7xx_vga_setup' defined but not used [-Wunused-function] ------------------------------------------------------------------------------- arm-allmodconfig : PASS, 0 errors, 6 warnings, 0 section mismatches Warnings: ../arch/arm/mach-cns3xxx/pcie.c:266:1: warning: the frame size of 1080 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1480 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../arch/arm/include/asm/cmpxchg.h:205:3: warning: value computed is not used [-Wunused-value] ../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1208 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../drivers/staging/sm7xxfb/sm7xxfb.c:117:19: warning: 'sm7xx_vga_setup' defined but not used [-Wunused-function] ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm-multi_v7_defconfig x86_64-defconfig arm-allnoconfig x86_64-allnoconfig arm64-defconfig

9 years, 1 month

next-20150402 build: 3 failures 18 warnings (next-20150402)

by Build bot for Mark Brown

Tree/Branch: next-20150402 Git describe: next-20150402 Commit: b0a12fb5bc Add linux-next specific files for 20150402 Build Time: 16 min 36 sec Passed: 5 / 8 ( 62.50 %) Failed: 3 / 8 ( 37.50 %) Errors: 0 Warnings: 18 Section Mismatches: 0 Failed defconfigs: arm64-allmodconfig arm-allmodconfig Errors: ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 13 warnings 0 mismatches : arm64-allmodconfig 7 warnings 0 mismatches : arm-allmodconfig ------------------------------------------------------------------------------- Warnings Summary: 18 2 ../drivers/uio/uio_pdrv_genirq.c:260:28: warning: initialization discards 'const' qualifier from pointer target type 2 ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] 1 ../sound/soc/samsung/dmaengine.c:60:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../sound/soc/samsung/dmaengine.c:53:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../sound/atmel/ac97c.c:919:29: warning: unused variable 'match' [-Wunused-variable] 1 ../mm/mempool.c:31:2: warning: format '%ld' expects argument of type 'long int', but argument 3 has type 'size_t' [-Wformat=] 1 ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1480 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../drivers/usb/renesas_usbhs/common.c:492:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/net/ethernet/dec/tulip/winbond-840.c:910:2: warning: #warning Processor architecture undefined [-Wcpp] 1 ../drivers/net/ethernet/dec/tulip/tulip_core.c:101:2: warning: #warning Processor architecture undefined! [-Wcpp] 1 ../drivers/mmc/host/sh_mmcif.c:402:4: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/mmc/host/sh_mmcif.c:401:4: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/infiniband/hw/qib/qib_qp.c:44:0: warning: "BITS_PER_PAGE" redefined 1 ../drivers/gpio/gpio-74xx-mmio.c:132:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined 1 ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined 1 ../arch/arm/mach-cns3xxx/pcie.c:266:1: warning: the frame size of 1088 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../arch/arm/include/asm/cmpxchg.h:205:3: warning: value computed is not used [-Wunused-value] =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm64-allmodconfig : FAIL, 0 errors, 13 warnings, 0 section mismatches Warnings: ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined ../sound/soc/samsung/dmaengine.c:53:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../sound/soc/samsung/dmaengine.c:60:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/gpio/gpio-74xx-mmio.c:132:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../drivers/infiniband/hw/qib/qib_qp.c:44:0: warning: "BITS_PER_PAGE" redefined ../drivers/mmc/host/sh_mmcif.c:401:4: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/mmc/host/sh_mmcif.c:402:4: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/uio/uio_pdrv_genirq.c:260:28: warning: initialization discards 'const' qualifier from pointer target type ../drivers/net/ethernet/dec/tulip/winbond-840.c:910:2: warning: #warning Processor architecture undefined [-Wcpp] ../drivers/net/ethernet/dec/tulip/tulip_core.c:101:2: warning: #warning Processor architecture undefined! [-Wcpp] ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] ../drivers/usb/renesas_usbhs/common.c:492:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ------------------------------------------------------------------------------- arm-allmodconfig : FAIL, 0 errors, 7 warnings, 0 section mismatches Warnings: ../arch/arm/mach-cns3xxx/pcie.c:266:1: warning: the frame size of 1088 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../mm/mempool.c:31:2: warning: format '%ld' expects argument of type 'long int', but argument 3 has type 'size_t' [-Wformat=] ../sound/atmel/ac97c.c:919:29: warning: unused variable 'match' [-Wunused-variable] ../arch/arm/include/asm/cmpxchg.h:205:3: warning: value computed is not used [-Wunused-value] ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1480 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../drivers/uio/uio_pdrv_genirq.c:260:28: warning: initialization discards 'const' qualifier from pointer target type ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm-multi_v7_defconfig x86_64-defconfig arm-allnoconfig x86_64-allnoconfig arm64-defconfig

9 years, 1 month

master build: 0 failures 21 warnings (v4.0-rc6-108-gb0838b150160)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v4.0-rc6-108-gb0838b150160 Commit: b0838b1501 Merge tag 'stable/for-linus-4.0-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Build Time: 18 min 5 sec Passed: 8 / 8 (100.00 %) Failed: 0 / 8 ( 0.00 %) Errors: 0 Warnings: 21 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 17 warnings 0 mismatches : arm64-allmodconfig 6 warnings 0 mismatches : arm-allmodconfig ------------------------------------------------------------------------------- Warnings Summary: 21 2 ../drivers/staging/sm7xxfb/sm7xxfb.c:117:19: warning: 'sm7xx_vga_setup' defined but not used [-Wunused-function] 2 ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] 1 ../sound/soc/samsung/dmaengine.c:60:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../sound/soc/samsung/dmaengine.c:53:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1480 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../drivers/usb/renesas_usbhs/common.c:482:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/staging/fbtft/fbtft-io.c:63:4: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' [-Wformat=] 1 ../drivers/staging/fbtft/fbtft-io.c:110:5: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' [-Wformat=] 1 ../drivers/staging/fbtft/fbtft-core.c:1004:4: warning: format '%d' expects argument of type 'int', but argument 3 has type 'size_t' [-Wformat=] 1 ../drivers/staging/dgap/dgap.h:124:0: warning: "PCI_IO_SIZE" redefined 1 ../drivers/spi/spi-s3c64xx.c:336:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/spi/spi-s3c64xx.c:327:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/net/ethernet/dec/tulip/winbond-840.c:910:2: warning: #warning Processor architecture undefined [-Wcpp] 1 ../drivers/net/ethernet/dec/tulip/tulip_core.c:101:2: warning: #warning Processor architecture undefined! [-Wcpp] 1 ../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1208 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../drivers/infiniband/hw/qib/qib_qp.c:44:0: warning: "BITS_PER_PAGE" redefined 1 ../drivers/gpio/gpio-74xx-mmio.c:132:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined 1 ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined 1 ../arch/arm/mach-cns3xxx/pcie.c:266:1: warning: the frame size of 1080 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../arch/arm/include/asm/cmpxchg.h:205:3: warning: value computed is not used [-Wunused-value] =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm64-allmodconfig : PASS, 0 errors, 17 warnings, 0 section mismatches Warnings: ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined ../sound/soc/samsung/dmaengine.c:53:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../sound/soc/samsung/dmaengine.c:60:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/gpio/gpio-74xx-mmio.c:132:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../drivers/infiniband/hw/qib/qib_qp.c:44:0: warning: "BITS_PER_PAGE" redefined ../drivers/net/ethernet/dec/tulip/winbond-840.c:910:2: warning: #warning Processor architecture undefined [-Wcpp] ../drivers/net/ethernet/dec/tulip/tulip_core.c:101:2: warning: #warning Processor architecture undefined! [-Wcpp] ../drivers/spi/spi-s3c64xx.c:327:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/spi/spi-s3c64xx.c:336:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/staging/dgap/dgap.h:124:0: warning: "PCI_IO_SIZE" redefined ../drivers/staging/fbtft/fbtft-core.c:1004:4: warning: format '%d' expects argument of type 'int', but argument 3 has type 'size_t' [-Wformat=] ../drivers/staging/fbtft/fbtft-io.c:63:4: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' [-Wformat=] ../drivers/staging/fbtft/fbtft-io.c:110:5: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' [-Wformat=] ../drivers/staging/sm7xxfb/sm7xxfb.c:117:19: warning: 'sm7xx_vga_setup' defined but not used [-Wunused-function] ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] ../drivers/usb/renesas_usbhs/common.c:482:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ------------------------------------------------------------------------------- arm-allmodconfig : PASS, 0 errors, 6 warnings, 0 section mismatches Warnings: ../arch/arm/mach-cns3xxx/pcie.c:266:1: warning: the frame size of 1080 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1480 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../arch/arm/include/asm/cmpxchg.h:205:3: warning: value computed is not used [-Wunused-value] ../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1208 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] ../drivers/staging/sm7xxfb/sm7xxfb.c:117:19: warning: 'sm7xx_vga_setup' defined but not used [-Wunused-function] ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm-multi_v7_defconfig x86_64-defconfig arm-allnoconfig x86_64-allnoconfig arm64-defconfig

9 years, 1 month

master build: 0 failures 21 warnings (v4.0-rc6-101-g0a4812798fae)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v4.0-rc6-101-g0a4812798fae Commit: 0a4812798f Merge branch 'fixes' of git://git.infradead.org/users/vkoul/slave-dma Build Time: 19 min 10 sec Passed: 8 / 8 (100.00 %) Failed: 0 / 8 ( 0.00 %) Errors: 0 Warnings: 21 Section Mismatches: 0 ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 17 warnings 0 mismatches : arm64-allmodconfig 6 warnings 0 mismatches : arm-allmodconfig ------------------------------------------------------------------------------- Warnings Summary: 21 2 ../drivers/staging/sm7xxfb/sm7xxfb.c:117:19: warning: 'sm7xx_vga_setup' defined but not used [-Wunused-function] 2 ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] 1 ../sound/soc/samsung/dmaengine.c:60:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../sound/soc/samsung/dmaengine.c:53:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1480 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../drivers/usb/renesas_usbhs/common.c:482:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/staging/fbtft/fbtft-io.c:63:4: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' [-Wformat=] 1 ../drivers/staging/fbtft/fbtft-io.c:110:5: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' [-Wformat=] 1 ../drivers/staging/fbtft/fbtft-core.c:1004:4: warning: format '%d' expects argument of type 'int', but argument 3 has type 'size_t' [-Wformat=] 1 ../drivers/staging/dgap/dgap.h:124:0: warning: "PCI_IO_SIZE" redefined 1 ../drivers/spi/spi-s3c64xx.c:336:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/spi/spi-s3c64xx.c:327:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/net/ethernet/dec/tulip/winbond-840.c:910:2: warning: #warning Processor architecture undefined [-Wcpp] 1 ../drivers/net/ethernet/dec/tulip/tulip_core.c:101:2: warning: #warning Processor architecture undefined! [-Wcpp] 1 ../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1208 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../drivers/infiniband/hw/qib/qib_qp.c:44:0: warning: "BITS_PER_PAGE" redefined 1 ../drivers/gpio/gpio-74xx-mmio.c:132:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined 1 ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined 1 ../arch/arm/mach-cns3xxx/pcie.c:266:1: warning: the frame size of 1080 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../arch/arm/include/asm/cmpxchg.h:205:3: warning: value computed is not used [-Wunused-value] =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm64-allmodconfig : PASS, 0 errors, 17 warnings, 0 section mismatches Warnings: ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined ../sound/soc/samsung/dmaengine.c:53:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../sound/soc/samsung/dmaengine.c:60:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/gpio/gpio-74xx-mmio.c:132:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../drivers/infiniband/hw/qib/qib_qp.c:44:0: warning: "BITS_PER_PAGE" redefined ../drivers/spi/spi-s3c64xx.c:327:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/spi/spi-s3c64xx.c:336:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/net/ethernet/dec/tulip/winbond-840.c:910:2: warning: #warning Processor architecture undefined [-Wcpp] ../drivers/net/ethernet/dec/tulip/tulip_core.c:101:2: warning: #warning Processor architecture undefined! [-Wcpp] ../drivers/staging/dgap/dgap.h:124:0: warning: "PCI_IO_SIZE" redefined ../drivers/staging/fbtft/fbtft-core.c:1004:4: warning: format '%d' expects argument of type 'int', but argument 3 has type 'size_t' [-Wformat=] ../drivers/staging/fbtft/fbtft-io.c:63:4: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' [-Wformat=] ../drivers/staging/fbtft/fbtft-io.c:110:5: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' [-Wformat=] ../drivers/usb/renesas_usbhs/common.c:482:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] ../drivers/staging/sm7xxfb/sm7xxfb.c:117:19: warning: 'sm7xx_vga_setup' defined but not used [-Wunused-function] ------------------------------------------------------------------------------- arm-allmodconfig : PASS, 0 errors, 6 warnings, 0 section mismatches Warnings: ../arch/arm/mach-cns3xxx/pcie.c:266:1: warning: the frame size of 1080 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1480 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../arch/arm/include/asm/cmpxchg.h:205:3: warning: value computed is not used [-Wunused-value] ../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1208 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] ../drivers/staging/sm7xxfb/sm7xxfb.c:117:19: warning: 'sm7xx_vga_setup' defined but not used [-Wunused-function] ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm-multi_v7_defconfig x86_64-defconfig arm-allnoconfig x86_64-allnoconfig arm64-defconfig

9 years, 1 month

[PATCH] arm: perf: Directly handle SMP platforms with one SPI

by Daniel Thompson

Some ARM platforms mux the PMU interrupt of every core into a single SPI. On such platforms if the PMU of any core except 0 raises an interrupt then it cannot be serviced and eventually, if you are lucky, the spurious irq detection might forcefully disable the interrupt. On these SoCs it is not possible to determine which core raised the interrupt so workaround this issue by queuing irqwork on the other cores whenever the primary interrupt handler is unable to service the interrupt. The u8500 platform has an alternative workaround that dynamically alters the affinity of the PMU interrupt. This workaround logic is no longer required so the original code is removed as is the hook it relied upon. Tested on imx6q (which has fours cores/PMUs all muxed to a single SPI). Signed-off-by: Daniel Thompson <daniel.thompson(a)linaro.org> --- Notes: Thanks to Lucas Stach, Russell King and Thomas Gleixner for critiquing an older, completely different way to tackle the same problem. arch/arm/include/asm/pmu.h | 10 +++++ arch/arm/kernel/perf_event.c | 11 ++--- arch/arm/kernel/perf_event_cpu.c | 94 ++++++++++++++++++++++++++++++++++++++++ arch/arm/mach-ux500/cpu-db8500.c | 29 ------------- 4 files changed, 107 insertions(+), 37 deletions(-) diff --git a/arch/arm/include/asm/pmu.h b/arch/arm/include/asm/pmu.h index 0b648c541293..36472c3cc283 100644 --- a/arch/arm/include/asm/pmu.h +++ b/arch/arm/include/asm/pmu.h @@ -81,6 +81,12 @@ struct pmu_hw_events { raw_spinlock_t pmu_lock; }; +struct arm_pmu_work { + struct irq_work work; + struct arm_pmu *arm_pmu; + atomic_t ret; +}; + struct arm_pmu { struct pmu pmu; cpumask_t active_irqs; @@ -101,6 +107,7 @@ struct arm_pmu { void (*reset)(void *); int (*request_irq)(struct arm_pmu *, irq_handler_t handler); void (*free_irq)(struct arm_pmu *); + irqreturn_t (*handle_irq_none)(struct arm_pmu *); int (*map_event)(struct perf_event *event); int num_events; atomic_t active_events; @@ -108,6 +115,9 @@ struct arm_pmu { u64 max_period; struct platform_device *plat_device; struct pmu_hw_events *(*get_hw_events)(void); + int single_irq; + struct arm_pmu_work __percpu *work; + atomic_t remaining_work; }; #define to_arm_pmu(p) (container_of(p, struct arm_pmu, pmu)) diff --git a/arch/arm/kernel/perf_event.c b/arch/arm/kernel/perf_event.c index b50a770f8c99..0792c913b9bb 100644 --- a/arch/arm/kernel/perf_event.c +++ b/arch/arm/kernel/perf_event.c @@ -306,22 +306,17 @@ validate_group(struct perf_event *event) static irqreturn_t armpmu_dispatch_irq(int irq, void *dev) { struct arm_pmu *armpmu; - struct platform_device *plat_device; - struct arm_pmu_platdata *plat; int ret; u64 start_clock, finish_clock; if (irq_is_percpu(irq)) dev = *(void **)dev; armpmu = dev; - plat_device = armpmu->plat_device; - plat = dev_get_platdata(&plat_device->dev); start_clock = sched_clock(); - if (plat && plat->handle_irq) - ret = plat->handle_irq(irq, dev, armpmu->handle_irq); - else - ret = armpmu->handle_irq(irq, dev); + ret = armpmu->handle_irq(irq, dev); + if (ret == IRQ_NONE && armpmu->handle_irq_none) + ret = armpmu->handle_irq_none(dev); finish_clock = sched_clock(); perf_sample_event_took(finish_clock - start_clock); diff --git a/arch/arm/kernel/perf_event_cpu.c b/arch/arm/kernel/perf_event_cpu.c index eb2c4d55666b..e7153dc3b489 100644 --- a/arch/arm/kernel/perf_event_cpu.c +++ b/arch/arm/kernel/perf_event_cpu.c @@ -88,6 +88,75 @@ static void cpu_pmu_disable_percpu_irq(void *data) disable_percpu_irq(irq); } +/* + * Workaround logic that is distributed to all cores if the PMU has only + * a single IRQ and the CPU receiving that IRQ cannot handle it. Its + * job is to try to service the interrupt on the current CPU. It will + * also enable the IRQ again if all the other CPUs have already tried to + * service it. + */ +static void cpu_pmu_do_percpu_work(struct irq_work *w) +{ + struct arm_pmu_work *work = container_of(w, struct arm_pmu_work, work); + struct arm_pmu *cpu_pmu = work->arm_pmu; + + atomic_set(&work->ret, + cpu_pmu->handle_irq(cpu_pmu->single_irq, cpu_pmu)); + + if (atomic_dec_and_test(&cpu_pmu->remaining_work)) + enable_irq(cpu_pmu->single_irq); +} + +/* + * This callback, which is enabled only on SMP platforms that are + * running with a single IRQ, is called when the PMU handler running in + * the current CPU cannot service the interrupt. + * + * It will disable the interrupt and distribute irqwork to all other + * processors in the system. Hopefully one of them will clear the + * interrupt... + */ +static irqreturn_t cpu_pmu_handle_irq_none(struct arm_pmu *cpu_pmu) +{ + int num_online = num_online_cpus(); + irqreturn_t ret = IRQ_NONE; + int cpu, cret; + + if (num_online <= 1) + return IRQ_NONE; + + disable_irq_nosync(cpu_pmu->single_irq); + atomic_add(num_online, &cpu_pmu->remaining_work); + smp_mb__after_atomic(); + + for_each_online_cpu(cpu) { + struct arm_pmu_work *work = per_cpu_ptr(cpu_pmu->work, cpu); + + if (cpu == smp_processor_id()) + continue; + + /* + * We can be extremely relaxed about memory ordering + * here. All we are doing is gathering information + * about the past to help us give a return value that + * will keep the spurious interrupt detector both happy + * *and* functional. We are not shared so we can + * tolerate the occasional spurious IRQ_HANDLED. + */ + cret = atomic_read(&work->ret); + if (cret != IRQ_NONE) + ret = cret; + + if (!irq_work_queue_on(&work->work, cpu)) + atomic_dec(&cpu_pmu->remaining_work); + } + + if (atomic_dec_and_test(&cpu_pmu->remaining_work)) + enable_irq(cpu_pmu->single_irq); + + return ret; +} + static void cpu_pmu_free_irq(struct arm_pmu *cpu_pmu) { int i, irq, irqs; @@ -107,6 +176,9 @@ static void cpu_pmu_free_irq(struct arm_pmu *cpu_pmu) if (irq >= 0) free_irq(irq, cpu_pmu); } + + cpu_pmu->handle_irq_none = cpu_pmu_handle_irq_none; + free_percpu(cpu_pmu->work); } } @@ -162,6 +234,28 @@ static int cpu_pmu_request_irq(struct arm_pmu *cpu_pmu, irq_handler_t handler) cpumask_set_cpu(i, &cpu_pmu->active_irqs); } + + /* + * If we are running SMP and have only one interrupt source + * then get ready to share that single irq among the cores. + */ + if (nr_cpu_ids > 1 && irqs == 1) { + cpu_pmu->single_irq = platform_get_irq(pmu_device, 0); + cpu_pmu->work = alloc_percpu(struct arm_pmu_work); + if (!cpu_pmu->work) { + pr_err("no memory for shared IRQ workaround\n"); + return -ENOMEM; + } + + for_each_possible_cpu(i) { + struct arm_pmu_work *w = + per_cpu_ptr(cpu_pmu->work, i); + init_irq_work(&w->work, cpu_pmu_do_percpu_work); + w->arm_pmu = cpu_pmu; + } + + cpu_pmu->handle_irq_none = cpu_pmu_handle_irq_none; + } } return 0; diff --git a/arch/arm/mach-ux500/cpu-db8500.c b/arch/arm/mach-ux500/cpu-db8500.c index 6f63954c8bde..917774999c5c 100644 --- a/arch/arm/mach-ux500/cpu-db8500.c +++ b/arch/arm/mach-ux500/cpu-db8500.c @@ -12,8 +12,6 @@ #include <linux/init.h> #include <linux/device.h> #include <linux/amba/bus.h> -#include <linux/interrupt.h> -#include <linux/irq.h> #include <linux/platform_device.h> #include <linux/io.h> #include <linux/mfd/abx500/ab8500.h> @@ -23,7 +21,6 @@ #include <linux/regulator/machine.h> #include <linux/random.h> -#include <asm/pmu.h> #include <asm/mach/map.h> #include "setup.h" @@ -99,30 +96,6 @@ static void __init u8500_map_io(void) iotable_init(u8500_io_desc, ARRAY_SIZE(u8500_io_desc)); } -/* - * The PMU IRQ lines of two cores are wired together into a single interrupt. - * Bounce the interrupt to the other core if it's not ours. - */ -static irqreturn_t db8500_pmu_handler(int irq, void *dev, irq_handler_t handler) -{ - irqreturn_t ret = handler(irq, dev); - int other = !smp_processor_id(); - - if (ret == IRQ_NONE && cpu_online(other)) - irq_set_affinity(irq, cpumask_of(other)); - - /* - * We should be able to get away with the amount of IRQ_NONEs we give, - * while still having the spurious IRQ detection code kick in if the - * interrupt really starts hitting spuriously. - */ - return ret; -} - -static struct arm_pmu_platdata db8500_pmu_platdata = { - .handle_irq = db8500_pmu_handler, -}; - static const char *db8500_read_soc_id(void) { void __iomem *uid = __io_address(U8500_BB_UID_BASE); @@ -143,8 +116,6 @@ static struct device * __init db8500_soc_device_init(void) } static struct of_dev_auxdata u8500_auxdata_lookup[] __initdata = { - /* Requires call-back bindings. */ - OF_DEV_AUXDATA("arm,cortex-a9-pmu", 0, "arm-pmu", &db8500_pmu_platdata), /* Requires DMA bindings. */ OF_DEV_AUXDATA("stericsson,ux500-msp-i2s", 0x80123000, "ux500-msp-i2s.0", &msp0_platform_data), -- 1.9.3

9 years, 1 month

[PATCH 0/7] OPP: Introduce OPP bindings V2 and supporting code

by Viresh Kumar

Now that I have received an verbal Ack from Rob Herring (in a personal conversation) about the bindings, I am showing how the code looks like with these new bindings. Some part is still now done: - Interface for adding new detailed OPPs from platform code instead of DT - Providing cpufreq helpers for the next OPPs - Providing regulator helpers for the target/min/max ranges Please provide feedback on how this looks like.. -- viresh Viresh Kumar (7): OPP: Redefine bindings to overcome shortcomings opp: Relocate few routines OPP: Break _opp_add_dynamic() into smaller functions opp: Parse new (v2) bindings opp: convert device_opp->dev to a list of devices opp: Add helpers for initializing CPU opps cpufreq-dt: Use DT to set policy->cpus/related_cpus Documentation/devicetree/bindings/power/opp.txt | 407 ++++++++- drivers/base/power/opp.c | 1041 +++++++++++++++++------ drivers/cpufreq/cpufreq-dt.c | 16 +- include/linux/pm_opp.h | 23 + 4 files changed, 1232 insertions(+), 255 deletions(-) -- 2.3.0.rc0.44.ga94655d

9 years, 1 month

master build: 1 failures 21 warnings (v4.0-rc6-31-gd4039314d0b1)

by Build bot for Mark Brown

Tree/Branch: master Git describe: v4.0-rc6-31-gd4039314d0b1 Commit: d4039314d0 Merge tag 'iommu-fixes-v4.0-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu Build Time: 19 min 11 sec Passed: 7 / 8 ( 87.50 %) Failed: 1 / 8 ( 12.50 %) Errors: 5 Warnings: 21 Section Mismatches: 0 Failed defconfigs: arm-allmodconfig Errors: arm-allmodconfig ../arch/arm/lib/xor-neon.c:1:0: error: target CPU does not support NEON lib/raid6/neon1.c:1:0: error: target CPU does not support NEON lib/raid6/neon2.c:1:0: error: target CPU does not support NEON lib/raid6/neon4.c:1:0: error: target CPU does not support NEON lib/raid6/neon8.c:1:0: error: target CPU does not support NEON ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 17 warnings 0 mismatches : arm64-allmodconfig 6 warnings 0 mismatches : arm-allmodconfig ------------------------------------------------------------------------------- Errors summary: 5 1 lib/raid6/neon8.c:1:0: error: target CPU does not support NEON 1 lib/raid6/neon4.c:1:0: error: target CPU does not support NEON 1 lib/raid6/neon2.c:1:0: error: target CPU does not support NEON 1 lib/raid6/neon1.c:1:0: error: target CPU does not support NEON 1 ../arch/arm/lib/xor-neon.c:1:0: error: target CPU does not support NEON Warnings Summary: 21 2 ../drivers/staging/sm7xxfb/sm7xxfb.c:117:19: warning: 'sm7xx_vga_setup' defined but not used [-Wunused-function] 2 ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] 1 ../sound/soc/samsung/dmaengine.c:60:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../sound/soc/samsung/dmaengine.c:53:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1480 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../drivers/usb/renesas_usbhs/common.c:482:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/staging/fbtft/fbtft-io.c:63:4: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' [-Wformat=] 1 ../drivers/staging/fbtft/fbtft-io.c:110:5: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' [-Wformat=] 1 ../drivers/staging/fbtft/fbtft-core.c:1004:4: warning: format '%d' expects argument of type 'int', but argument 3 has type 'size_t' [-Wformat=] 1 ../drivers/staging/dgap/dgap.h:124:0: warning: "PCI_IO_SIZE" redefined 1 ../drivers/spi/spi-s3c64xx.c:336:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/spi/spi-s3c64xx.c:327:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/net/ethernet/dec/tulip/winbond-840.c:910:2: warning: #warning Processor architecture undefined [-Wcpp] 1 ../drivers/net/ethernet/dec/tulip/tulip_core.c:101:2: warning: #warning Processor architecture undefined! [-Wcpp] 1 ../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1208 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../drivers/infiniband/hw/qib/qib_qp.c:44:0: warning: "BITS_PER_PAGE" redefined 1 ../drivers/gpio/gpio-74xx-mmio.c:132:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined 1 ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined 1 ../arch/arm/mach-cns3xxx/pcie.c:266:1: warning: the frame size of 1080 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../arch/arm/include/asm/cmpxchg.h:205:3: warning: value computed is not used [-Wunused-value] =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- arm64-allmodconfig : PASS, 0 errors, 17 warnings, 0 section mismatches Warnings: ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined ../drivers/gpio/gpio-74xx-mmio.c:132:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../sound/soc/samsung/dmaengine.c:53:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../sound/soc/samsung/dmaengine.c:60:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/infiniband/hw/qib/qib_qp.c:44:0: warning: "BITS_PER_PAGE" redefined ../drivers/spi/spi-s3c64xx.c:327:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/spi/spi-s3c64xx.c:336:8: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/staging/dgap/dgap.h:124:0: warning: "PCI_IO_SIZE" redefined ../drivers/staging/fbtft/fbtft-core.c:1004:4: warning: format '%d' expects argument of type 'int', but argument 3 has type 'size_t' [-Wformat=] ../drivers/staging/fbtft/fbtft-io.c:63:4: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' [-Wformat=] ../drivers/staging/fbtft/fbtft-io.c:110:5: warning: format '%d' expects argument of type 'int', but argument 4 has type 'size_t' [-Wformat=] ../drivers/net/ethernet/dec/tulip/winbond-840.c:910:2: warning: #warning Processor architecture undefined [-Wcpp] ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] ../drivers/net/ethernet/dec/tulip/tulip_core.c:101:2: warning: #warning Processor architecture undefined! [-Wcpp] ../drivers/usb/renesas_usbhs/common.c:482:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../drivers/staging/sm7xxfb/sm7xxfb.c:117:19: warning: 'sm7xx_vga_setup' defined but not used [-Wunused-function] ------------------------------------------------------------------------------- arm-allmodconfig : FAIL, 5 errors, 6 warnings, 0 section mismatches Errors: ../arch/arm/lib/xor-neon.c:1:0: error: target CPU does not support NEON lib/raid6/neon1.c:1:0: error: target CPU does not support NEON lib/raid6/neon2.c:1:0: error: target CPU does not support NEON lib/raid6/neon4.c:1:0: error: target CPU does not support NEON lib/raid6/neon8.c:1:0: error: target CPU does not support NEON Warnings: ../arch/arm/mach-cns3xxx/pcie.c:266:1: warning: the frame size of 1080 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../arch/arm/include/asm/cmpxchg.h:205:3: warning: value computed is not used [-Wunused-value] ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1480 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../drivers/mtd/chips/cfi_cmdset_0020.c:651:1: warning: the frame size of 1208 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] ../drivers/staging/sm7xxfb/sm7xxfb.c:117:19: warning: 'sm7xx_vga_setup' defined but not used [-Wunused-function] ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig arm-multi_v7_defconfig x86_64-defconfig arm-allnoconfig x86_64-allnoconfig arm64-defconfig

9 years, 1 month

[RFC v2 0/5] arm64: kvm: reset hyp context for kexec

by AKASHI Takahiro

This patch set addresses KVM issue described in Geoff's kexec patch set[1]. (The subject was changed from "arm64: kexec: fix kvm issue in kexec.") See "Changes" below. The basic approach here is to define a kvm tear-down function and add a reboot hook to gracefully shutdown the 1st kernel. This way, kvm gets free from kexec-specific cleanup and yet we allows future enhancement, like cpu hotplug & building kvm as a module, based on tear-down function. In this sense, patch #1 & #2 (and #5) actually fix the problem, and #3 & #4 are rather informative. I confirmed that 1st kernel successfully shut down and 2nd kernel started with the following messages: kvm [1]: Using HYP init bounce page @8fa52f000 kvm [1]: interrupt-controller@2c02f000 IRQ6 kvm [1]: timer IRQ3 kvm [1]: Hyp mode initialized successfully test target: Base fast model version: kernel v4.0-rc4 + Geoff's kexec v8 I still have some concerns about the following points. Please let me know if you have any comments: 1) Call kvm_cpu_reset() on non-boot cpus in reboot notifier We don't have to do so in kexec-specific case. But the current code runs the function on each cpu for safety since we use a general reboot hook. 2) Flush D$ in kvm_cpu_reset() Currently doesn't do so because all the cpus are just going to shut down, and we actually flush D$ on boot cpu in Geoff's cpu_reset(). 3) Compatibility with arm implementation Frediano[2] is no longer working on this issue on arm as he left his company. But my approach here is based on a generic interface and can be applied to arm in a similar way. [1] http://lists.infradead.org/pipermail/kexec/2015-March/013432.html [2] http://lists.infradead.org/pipermail/linux-arm-kernel/2015-February/322231.… Changes from v1: * modified kvm_cpu_reset() implementation: - define a macro to translate va to addr in trampoline - use __hyp_default_vectors instead of kvm_get_hyp_stub_vectors() - shuffle the arguments in __cpu_reset_hyp_mode() - optimize TLB flush operations * changed a patch#2's name * added a patch#5 to add stub code for arm AKASHI Takahiro (5): arm64: kvm: add a cpu tear-down function arm64: kvm: allow EL2 context to be reset on shutdown arm64: kvm: add cpu reset hook for cpu hotplug arm64: kvm: add cpu reset at module exit arm: kvm: add stub implementation for kvm_cpu_reset() arch/arm/include/asm/kvm_asm.h | 1 + arch/arm/include/asm/kvm_host.h | 13 +++++++++- arch/arm/include/asm/kvm_mmu.h | 5 ++++ arch/arm/kvm/arm.c | 51 +++++++++++++++++++++++++++++++++++++ arch/arm/kvm/init.S | 6 +++++ arch/arm/kvm/mmu.c | 5 ++++ arch/arm64/include/asm/kvm_asm.h | 1 + arch/arm64/include/asm/kvm_host.h | 12 ++++++++- arch/arm64/include/asm/kvm_mmu.h | 5 ++++ arch/arm64/include/asm/virt.h | 11 ++++++++ arch/arm64/kvm/Kconfig | 1 - arch/arm64/kvm/hyp-init.S | 35 +++++++++++++++++++++++++ arch/arm64/kvm/hyp.S | 16 +++++++++--- 13 files changed, 156 insertions(+), 6 deletions(-) -- 1.7.9.5

9 years, 1 month

next-20150401 build: 3 failures 23 warnings (next-20150401)

by Build bot for Mark Brown

Tree/Branch: next-20150401 Git describe: next-20150401 Commit: e954104e2b Add linux-next specific files for 20150401 Build Time: 17 min 8 sec Passed: 5 / 8 ( 62.50 %) Failed: 3 / 8 ( 37.50 %) Errors: 5 Warnings: 23 Section Mismatches: 0 Failed defconfigs: arm64-allmodconfig arm-allmodconfig Errors: arm-allmodconfig ../arch/arm/lib/xor-neon.c:1:0: error: target CPU does not support NEON lib/raid6/neon1.c:1:0: error: target CPU does not support NEON lib/raid6/neon2.c:1:0: error: target CPU does not support NEON lib/raid6/neon4.c:1:0: error: target CPU does not support NEON lib/raid6/neon8.c:1:0: error: target CPU does not support NEON ------------------------------------------------------------------------------- defconfigs with issues (other than build errors): 1 warnings 0 mismatches : x86_64-allnoconfig 15 warnings 0 mismatches : arm64-allmodconfig 4 warnings 0 mismatches : arm-multi_v7_defconfig 8 warnings 0 mismatches : arm-allmodconfig ------------------------------------------------------------------------------- Errors summary: 5 1 lib/raid6/neon8.c:1:0: error: target CPU does not support NEON 1 lib/raid6/neon4.c:1:0: error: target CPU does not support NEON 1 lib/raid6/neon2.c:1:0: error: target CPU does not support NEON 1 lib/raid6/neon1.c:1:0: error: target CPU does not support NEON 1 ../arch/arm/lib/xor-neon.c:1:0: error: target CPU does not support NEON Warnings Summary: 23 4 ../sound/soc/codecs/pcm512x.c:34:0: warning: "DIV_ROUND_CLOSEST_ULL" redefined 2 ../drivers/uio/uio_pdrv_genirq.c:260:28: warning: initialization discards 'const' qualifier from pointer target type 2 ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] 1 ../sound/soc/samsung/dmaengine.c:60:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../sound/soc/samsung/dmaengine.c:53:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../sound/atmel/ac97c.c:919:29: warning: unused variable 'match' [-Wunused-variable] 1 ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1480 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../include/linux/dmapool.h:31:7: warning: 'struct device' declared inside parameter list 1 ../include/linux/dmapool.h:18:4: warning: its scope is only this definition or declaration, which is probably not what you want 1 ../include/linux/dmapool.h:18:4: warning: 'struct device' declared inside parameter list 1 ../drivers/usb/renesas_usbhs/common.c:492:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/net/ethernet/dec/tulip/winbond-840.c:910:2: warning: #warning Processor architecture undefined [-Wcpp] 1 ../drivers/net/ethernet/dec/tulip/tulip_core.c:101:2: warning: #warning Processor architecture undefined! [-Wcpp] 1 ../drivers/mmc/host/sh_mmcif.c:402:4: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/mmc/host/sh_mmcif.c:401:4: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] 1 ../drivers/infiniband/hw/qib/qib_qp.c:44:0: warning: "BITS_PER_PAGE" redefined 1 ../drivers/gpio/gpio-74xx-mmio.c:132:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] 1 ../drivers/dma/xilinx/xilinx_vdma.c:502:5: warning: passing argument 2 of 'dma_pool_create' from incompatible pointer type 1 ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined 1 ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined 1 ../arch/x86/kernel/cpu/common.c:1225:2: warning: right shift count >= width of type 1 ../arch/arm/mach-cns3xxx/pcie.c:266:1: warning: the frame size of 1088 bytes is larger than 1024 bytes [-Wframe-larger-than=] 1 ../arch/arm/include/asm/cmpxchg.h:205:3: warning: value computed is not used [-Wunused-value] =============================================================================== Detailed per-defconfig build reports below: ------------------------------------------------------------------------------- x86_64-allnoconfig : PASS, 0 errors, 1 warnings, 0 section mismatches Warnings: ../arch/x86/kernel/cpu/common.c:1225:2: warning: right shift count >= width of type ------------------------------------------------------------------------------- arm64-allmodconfig : FAIL, 0 errors, 15 warnings, 0 section mismatches Warnings: ../drivers/block/drbd/drbd_bitmap.c:482:0: warning: "BITS_PER_PAGE" redefined ../drivers/block/drbd/drbd_bitmap.c:483:0: warning: "BITS_PER_PAGE_MASK" redefined ../drivers/gpio/gpio-74xx-mmio.c:132:16: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ../sound/soc/codecs/pcm512x.c:34:0: warning: "DIV_ROUND_CLOSEST_ULL" redefined ../sound/soc/codecs/pcm512x.c:34:0: warning: "DIV_ROUND_CLOSEST_ULL" redefined ../sound/soc/samsung/dmaengine.c:53:32: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../sound/soc/samsung/dmaengine.c:60:31: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/infiniband/hw/qib/qib_qp.c:44:0: warning: "BITS_PER_PAGE" redefined ../drivers/mmc/host/sh_mmcif.c:401:4: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/mmc/host/sh_mmcif.c:402:4: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] ../drivers/net/ethernet/dec/tulip/winbond-840.c:910:2: warning: #warning Processor architecture undefined [-Wcpp] ../drivers/net/ethernet/dec/tulip/tulip_core.c:101:2: warning: #warning Processor architecture undefined! [-Wcpp] ../drivers/uio/uio_pdrv_genirq.c:260:28: warning: initialization discards 'const' qualifier from pointer target type ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] ../drivers/usb/renesas_usbhs/common.c:492:25: warning: cast from pointer to integer of different size [-Wpointer-to-int-cast] ------------------------------------------------------------------------------- arm-multi_v7_defconfig : PASS, 0 errors, 4 warnings, 0 section mismatches Warnings: ../include/linux/dmapool.h:18:4: warning: 'struct device' declared inside parameter list ../include/linux/dmapool.h:18:4: warning: its scope is only this definition or declaration, which is probably not what you want ../include/linux/dmapool.h:31:7: warning: 'struct device' declared inside parameter list ../drivers/dma/xilinx/xilinx_vdma.c:502:5: warning: passing argument 2 of 'dma_pool_create' from incompatible pointer type ------------------------------------------------------------------------------- arm-allmodconfig : FAIL, 5 errors, 8 warnings, 0 section mismatches Errors: ../arch/arm/lib/xor-neon.c:1:0: error: target CPU does not support NEON lib/raid6/neon1.c:1:0: error: target CPU does not support NEON lib/raid6/neon2.c:1:0: error: target CPU does not support NEON lib/raid6/neon4.c:1:0: error: target CPU does not support NEON lib/raid6/neon8.c:1:0: error: target CPU does not support NEON Warnings: ../arch/arm/mach-cns3xxx/pcie.c:266:1: warning: the frame size of 1088 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../sound/atmel/ac97c.c:919:29: warning: unused variable 'match' [-Wunused-variable] ../lib/lz4/lz4hc_compress.c:514:1: warning: the frame size of 1480 bytes is larger than 1024 bytes [-Wframe-larger-than=] ../arch/arm/include/asm/cmpxchg.h:205:3: warning: value computed is not used [-Wunused-value] ../sound/soc/codecs/pcm512x.c:34:0: warning: "DIV_ROUND_CLOSEST_ULL" redefined ../sound/soc/codecs/pcm512x.c:34:0: warning: "DIV_ROUND_CLOSEST_ULL" redefined ../drivers/scsi/ips.c:210:2: warning: #warning "This driver has only been tested on the x86/ia64/x86_64 platforms" [-Wcpp] ../drivers/uio/uio_pdrv_genirq.c:260:28: warning: initialization discards 'const' qualifier from pointer target type ------------------------------------------------------------------------------- Passed with no errors, warnings or mismatches: arm64-allnoconfig x86_64-defconfig arm-allnoconfig arm64-defconfig

9 years, 1 month

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linaro-kernel April 2015