# git rev-parse -q --verify 7fd5004bbade1bf77fbb7e73b2b5a9eda1e892ea^{commit} 7fd5004bbade1bf77fbb7e73b2b5a9eda1e892ea already have revision, skipping fetch # git checkout -q -f -B kisskb 7fd5004bbade1bf77fbb7e73b2b5a9eda1e892ea # git clean -qxdf # < git log -1 # commit 7fd5004bbade1bf77fbb7e73b2b5a9eda1e892ea # Author: Christophe Leroy # Date: Sat Jan 11 19:20:49 2020 +0000 # # powerpc/vdso: Switch VDSO to generic C implementation. # # For VDSO32 on PPC64, we create a fake 32 bits config, on the same # principle as MIPS architecture, in order to get the correct parts of # the different asm header files. # # With the C VDSO, the performance is slightly lower, but it is worth # it as it will ease maintenance and evolution, and also brings clocks # that are not supported with the ASM VDSO. # # On an 8xx at 132 MHz, vdsotest with the ASM VDSO: # gettimeofday: vdso: 828 nsec/call # clock-getres-realtime-coarse: vdso: 391 nsec/call # clock-gettime-realtime-coarse: vdso: 614 nsec/call # clock-getres-realtime: vdso: 460 nsec/call # clock-gettime-realtime: vdso: 876 nsec/call # clock-getres-monotonic-coarse: vdso: 399 nsec/call # clock-gettime-monotonic-coarse: vdso: 691 nsec/call # clock-getres-monotonic: vdso: 460 nsec/call # clock-gettime-monotonic: vdso: 1026 nsec/call # # On an 8xx at 132 MHz, vdsotest with the C VDSO: # gettimeofday: vdso: 955 nsec/call # clock-getres-realtime-coarse: vdso: 545 nsec/call # clock-gettime-realtime-coarse: vdso: 592 nsec/call # clock-getres-realtime: vdso: 545 nsec/call # clock-gettime-realtime: vdso: 941 nsec/call # clock-getres-monotonic-coarse: vdso: 545 nsec/call # clock-gettime-monotonic-coarse: vdso: 591 nsec/call # clock-getres-monotonic: vdso: 545 nsec/call # clock-gettime-monotonic: vdso: 940 nsec/call # # It is even better for gettime with monotonic clocks. # # Unsupported clocks with ASM VDSO: # clock-gettime-boottime: vdso: 3851 nsec/call # clock-gettime-tai: vdso: 3852 nsec/call # clock-gettime-monotonic-raw: vdso: 3396 nsec/call # # Same clocks with C VDSO: # clock-gettime-tai: vdso: 941 nsec/call # clock-gettime-monotonic-raw: vdso: 1001 nsec/call # clock-gettime-monotonic-coarse: vdso: 591 nsec/call # # On an 8321E at 333 MHz, vdsotest with the ASM VDSO: # gettimeofday: vdso: 220 nsec/call # clock-getres-realtime-coarse: vdso: 102 nsec/call # clock-gettime-realtime-coarse: vdso: 178 nsec/call # clock-getres-realtime: vdso: 129 nsec/call # clock-gettime-realtime: vdso: 235 nsec/call # clock-getres-monotonic-coarse: vdso: 105 nsec/call # clock-gettime-monotonic-coarse: vdso: 208 nsec/call # clock-getres-monotonic: vdso: 129 nsec/call # clock-gettime-monotonic: vdso: 274 nsec/call # # On an 8321E at 333 MHz, vdsotest with the C VDSO: # gettimeofday: vdso: 272 nsec/call # clock-getres-realtime-coarse: vdso: 160 nsec/call # clock-gettime-realtime-coarse: vdso: 184 nsec/call # clock-getres-realtime: vdso: 166 nsec/call # clock-gettime-realtime: vdso: 281 nsec/call # clock-getres-monotonic-coarse: vdso: 160 nsec/call # clock-gettime-monotonic-coarse: vdso: 184 nsec/call # clock-getres-monotonic: vdso: 169 nsec/call # clock-gettime-monotonic: vdso: 275 nsec/call # # Signed-off-by: Christophe Leroy # --- # v7: # - Split out preparatory changes in a new preceding patch # - Added -fasynchronous-unwind-tables to CC flags. # # v6: # - Added missing prototypes in asm/vdso/gettimeofday.h for __c_kernel_ functions. # - Using STACK_FRAME_OVERHEAD instead of INT_FRAME_SIZE # - Rebased on powerpc/merge as of 7 Apr 2020 # - Fixed build failure with gcc 9 # - Added a patch to create asm/vdso/processor.h and more cpu_relax() in it # < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-gcc --version # < /opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux-ld --version # < git log --format=%s --max-count=1 7fd5004bbade1bf77fbb7e73b2b5a9eda1e892ea # < make -s -j 48 ARCH=powerpc O=/kisskb/build/chleroy_mpc85xx_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- mpc85xx_defconfig # < make -s -j 48 ARCH=powerpc O=/kisskb/build/chleroy_mpc85xx_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- help # make -s -j 48 ARCH=powerpc O=/kisskb/build/chleroy_mpc85xx_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- olddefconfig # make -s -j 48 ARCH=powerpc O=/kisskb/build/chleroy_mpc85xx_defconfig_powerpc-gcc5 CROSS_COMPILE=/opt/cross/kisskb/korg/gcc-5.5.0-nolibc/powerpc64-linux/bin/powerpc64-linux- In file included from /kisskb/src/include/linux/kernel.h:11:0, from /kisskb/src/include/linux/list.h:9, from /kisskb/src/include/linux/module.h:12, from /kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c:15: /kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c: In function 'allocate_bd': /kisskb/src/include/linux/err.h:22:49: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] #define IS_ERR_VALUE(x) unlikely((unsigned long)(void *)(x) >= (unsigned long)-MAX_ERRNO) ^ /kisskb/src/include/linux/compiler.h:78:42: note: in definition of macro 'unlikely' # define unlikely(x) __builtin_expect(!!(x), 0) ^ /kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c:139:6: note: in expansion of macro 'IS_ERR_VALUE' if (IS_ERR_VALUE(fep->ring_mem_addr)) ^ /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8541cds.dts:330.3-21: Warning (pci_device_bus_num): /pci@e0008000/i8259@19000:bus-range: PCI bus number 1 out of range, expected (0 - 0) /kisskb/src/arch/powerpc/boot/dts/fsl/mpc8555cds.dts:330.3-21: Warning (pci_device_bus_num): /pci@e0008000/i8259@19000:bus-range: PCI bus number 1 out of range, expected (0 - 0) INFO: Uncompressed kernel (size 0xca9628) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xca9628) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xca9628) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xca9628) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xca9628) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xca9628) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xca9628) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xca9628) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xca9628) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xca9628) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xca9628) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xca9628) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xca9628) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xca9628) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xca9628) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) INFO: Uncompressed kernel (size 0xc98e24) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xd00000) Image Name: Linux-5.7.0-rc1-14989-g7fd5004bb Created: Fri Apr 17 00:55:30 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6180831 Bytes = 6035.97 KiB = 5.89 MiB Load Address: 00000000 Entry Point: 00000000 Image Name: Linux-5.7.0-rc1-14989-g7fd5004bb Created: Fri Apr 17 00:55:31 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6211115 Bytes = 6065.54 KiB = 5.92 MiB Load Address: 00d00000 Entry Point: 00d002a4 Image Name: Linux-5.7.0-rc1-14989-g7fd5004bb Created: Fri Apr 17 00:55:31 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6210991 Bytes = 6065.42 KiB = 5.92 MiB Load Address: 00d00000 Entry Point: 00d002a4 Image Name: Linux-5.7.0-rc1-14989-g7fd5004bb Created: Fri Apr 17 00:55:31 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6211157 Bytes = 6065.58 KiB = 5.92 MiB Load Address: 00d00000 Entry Point: 00d002a4 Image Name: Linux-5.7.0-rc1-14989-g7fd5004bb Created: Fri Apr 17 00:55:31 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6212526 Bytes = 6066.92 KiB = 5.92 MiB Load Address: 00d00000 Entry Point: 00d002a4 Image Name: Linux-5.7.0-rc1-14989-g7fd5004bb Created: Fri Apr 17 00:55:31 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6211098 Bytes = 6065.53 KiB = 5.92 MiB Load Address: 00d00000 Entry Point: 00d00314 Image Name: Linux-5.7.0-rc1-14989-g7fd5004bb Created: Fri Apr 17 00:55:32 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6210989 Bytes = 6065.42 KiB = 5.92 MiB Load Address: 00d00000 Entry Point: 00d002a4 Image Name: Linux-5.7.0-rc1-14989-g7fd5004bb Created: Fri Apr 17 00:55:32 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6210990 Bytes = 6065.42 KiB = 5.92 MiB Load Address: 00d00000 Entry Point: 00d00314 Image Name: Linux-5.7.0-rc1-14989-g7fd5004bb Created: Fri Apr 17 00:55:32 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6211100 Bytes = 6065.53 KiB = 5.92 MiB Load Address: 00d00000 Entry Point: 00d00314 Image Name: Linux-5.7.0-rc1-14989-g7fd5004bb Created: Fri Apr 17 00:55:32 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6211112 Bytes = 6065.54 KiB = 5.92 MiB Load Address: 00d00000 Entry Point: 00d00314 Image Name: Linux-5.7.0-rc1-14989-g7fd5004bb Created: Fri Apr 17 00:55:33 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6210836 Bytes = 6065.27 KiB = 5.92 MiB Load Address: 00d00000 Entry Point: 00d002a4 Image Name: Linux-5.7.0-rc1-14989-g7fd5004bb Created: Fri Apr 17 00:55:33 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6209316 Bytes = 6063.79 KiB = 5.92 MiB Load Address: 00d00000 Entry Point: 00d002a4 Image Name: Linux-5.7.0-rc1-14989-g7fd5004bb Created: Fri Apr 17 00:55:33 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6210512 Bytes = 6064.95 KiB = 5.92 MiB Load Address: 00d00000 Entry Point: 00d002a4 Image Name: Linux-5.7.0-rc1-14989-g7fd5004bb Created: Fri Apr 17 00:55:33 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6211087 Bytes = 6065.51 KiB = 5.92 MiB Load Address: 00d00000 Entry Point: 00d002a4 Image Name: Linux-5.7.0-rc1-14989-g7fd5004bb Created: Fri Apr 17 00:55:33 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6211040 Bytes = 6065.47 KiB = 5.92 MiB Load Address: 00d00000 Entry Point: 00d00314 Image Name: Linux-5.7.0-rc1-14989-g7fd5004bb Created: Fri Apr 17 00:55:33 2020 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 6210880 Bytes = 6065.31 KiB = 5.92 MiB Load Address: 00d00000 Entry Point: 00d002a4 Completed OK # rm -rf /kisskb/build/chleroy_mpc85xx_defconfig_powerpc-gcc5 # Build took: 0:02:02.082525