# git rev-parse -q --verify 1e072bee33d09c62a975faab919a5be92d9538ab^{commit} 1e072bee33d09c62a975faab919a5be92d9538ab already have revision, skipping fetch # git checkout -q -f -B kisskb 1e072bee33d09c62a975faab919a5be92d9538ab # git clean -qxdf # < git log -1 # commit 1e072bee33d09c62a975faab919a5be92d9538ab # Author: Alistair Popple # Date: Tue Apr 17 19:11:28 2018 +1000 # # powerpc/powernv/npu: Do a PID GPU TLB flush when invalidating a large address range # # The NPU has a limited number of address translation shootdown (ATSD) # registers and the GPU has limited bandwidth to process ATSDs. This can # result in contention of ATSD registers leading to soft lockups on some # threads, particularly when invalidating a large address range in # pnv_npu2_mn_invalidate_range(). # # At some threshold it becomes more efficient to flush the entire GPU # TLB for the given MM context (PID) than individually flushing each # address in the range. This patch will result in ranges greater than # 2MB being converted from 32+ ATSDs into a single ATSD which will flush # the TLB for the given PID on each GPU. # # Fixes: 1ab66d1fbada ("powerpc/powernv: Introduce address translation services for Nvlink2") # Cc: stable@vger.kernel.org # v4.12+ # Signed-off-by: Alistair Popple # Acked-by: Balbir Singh # Tested-by: Balbir Singh # Signed-off-by: Michael Ellerman # < /opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux-gcc --version # < git log --format=%s --max-count=1 1e072bee33d09c62a975faab919a5be92d9538ab # < make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc85xx_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- mpc85xx_defconfig # make -s -j 48 ARCH=powerpc O=/kisskb/build/powerpc-fixes_mpc85xx_defconfig_powerpc CROSS_COMPILE=/opt/cross/kisskb/gcc-4.6.3-nolibc/powerpc-linux/bin/powerpc-linux- /kisskb/src/kernel/cgroup/cgroup-v1.c: In function 'cgroup1_mount': /kisskb/src/kernel/cgroup/cgroup-v1.c:1268:20: warning: 'root' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/kernel/printk/printk.c: In function 'devkmsg_sysctl_set_loglvl': /kisskb/src/kernel/printk/printk.c:183:16: warning: 'old' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/base/regmap/regmap.c: In function 'regmap_raw_read': /kisskb/src/drivers/base/regmap/regmap.c:2497:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/sound/soc/codecs/wm8960.c: In function 'wm8960_configure_clocking': /kisskb/src/sound/soc/codecs/wm8960.c:803:70: warning: 'j' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/sound/soc/codecs/wm8960.c:800:68: warning: 'i' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/base/regmap/regmap.c: In function '_regmap_raw_write': /kisskb/src/drivers/base/regmap/regmap.c:1819:6: warning: 'ret' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/mm/hugetlb.c: In function 'alloc_pool_huge_page': /kisskb/src/mm/hugetlb.c:1433:5: warning: 'page' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/proc/inode.c: In function 'proc_reg_open': /kisskb/src/include/linux/list.h:65:12: warning: 'pdeo' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/fs/proc/inode.c:340:21: note: 'pdeo' was declared here /kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c: In function 'allocate_bd': /kisskb/src/drivers/net/ethernet/freescale/fs_enet/mac-scc.c:139:6: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] /kisskb/src/drivers/tty/serial/8250/8250_core.c: In function 'univ8250_release_irq': /kisskb/src/drivers/tty/serial/8250/8250_core.c:251:18: warning: 'i' may be used uninitialized in this function [-Wuninitialized] /kisskb/src/drivers/tty/serial/8250/8250_core.c:231:19: note: 'i' was declared here arch/powerpc/boot/tqm8548.dtb: Warning (pci_bridge): /pcie@e000a000/pcie@0: missing bus-range for PCI bridge arch/powerpc/boot/tqm8548.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' arch/powerpc/boot/mpc8572ds.dtb: Warning (pci_bridge): /pcie@ffe08000/pcie@0: missing bus-range for PCI bridge arch/powerpc/boot/mpc8572ds.dtb: Warning (pci_bridge): /pcie@ffe09000/pcie@0: missing bus-range for PCI bridge arch/powerpc/boot/mpc8572ds.dtb: Warning (pci_bridge): /pcie@ffe0a000/pcie@0: missing bus-range for PCI bridge arch/powerpc/boot/mpc8572ds.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' arch/powerpc/boot/mpc8541cds.dtb: Warning (pci_device_bus_num): /pci@e0008000/i8259@19000:bus-range: PCI bus number 1 out of range, expected (0 - 0) arch/powerpc/boot/mpc8544ds.dtb: Warning (pci_bridge): /pcie@e0009000/pcie@0: missing bus-range for PCI bridge arch/powerpc/boot/mpc8544ds.dtb: Warning (pci_bridge): /pcie@e000a000/pcie@0arch/powerpc/boot/mpc8548cds_32b.dtb: Warning (pci_bridge): : /pcie@e000a000/pcie@0missing bus-range for PCI bridge: missing bus-range for PCI bridgearch/powerpc/boot/mpc8544ds.dtb: Warning (pci_bridge): /pcie@e000b000/pcie@0arch/powerpc/boot/mpc8548cds_32b.dtb: Warning (pci_device_bus_num): : Failed prerequisite 'pci_bridge'missing bus-range for PCI bridge arch/powerpc/boot/mpc8544ds.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' arch/powerpc/boot/mpc8555cds.dtb: Warning (pci_device_bus_num): /pci@e0008000/i8259@19000:bus-range: PCI bus number 1 out of range, expected (0 - 0) arch/powerpc/boot/mpc8568mds.dtb: Warning (pci_bridge): /pcie@e000a000/pcie@0: missing bus-range for PCI bridge arch/powerpc/boot/mpc8568mds.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' arch/powerpc/boot/sbc8548.dtb: Warning (pci_bridge): /pcie@e000a000/pcie@0: missing bus-range for PCI bridge arch/powerpc/boot/sbc8548.dtb: Warning (pci_device_bus_num): Failed prerequisite 'pci_bridge' INFO: Uncompressed kernel (size 0xb61400) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb61400) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb61400) overlaps the address of the wrapper(0x400000) INFO: Uncompressed kernel (size 0xb61400) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb61400) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb61400) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb61400) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb61400) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb61400) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb61400) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb61400) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb61400) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb61400) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb61400) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb61400) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) INFO: Uncompressed kernel (size 0xb50cb4) overlaps the address of the wrapper(0x400000) INFO: Fixing the link_address of wrapper to (0xc00000) Image Name: Linux-4.17.0-rc1-g1e072be Created: Fri Apr 20 23:53:39 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5480432 Bytes = 5351.98 kB = 5.23 MB Load Address: 00000000 Entry Point: 00000000 Image Name: Linux-4.17.0-rc1-g1e072be Created: Fri Apr 20 23:53:39 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5504396 Bytes = 5375.39 kB = 5.25 MB Load Address: 00c00000 Entry Point: 00c00248 Image Name: Linux-4.17.0-rc1-g1e072be Created: Fri Apr 20 23:53:40 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5504694 Bytes = 5375.68 kB = 5.25 MB Load Address: 00c00000 Entry Point: 00c00248 Image Name: Linux-4.17.0-rc1-g1e072be Created: Fri Apr 20 23:53:40 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5504398 Bytes = 5375.39 kB = 5.25 MB Load Address: 00c00000 Entry Point: 00c00248 Image Name: Linux-4.17.0-rc1-g1e072be Created: Fri Apr 20 23:53:40 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5504074 Bytes = 5375.07 kB = 5.25 MB Load Address: 00c00000 Entry Point: 00c00288 Image Name: Linux-4.17.0-rc1-g1e072be Created: Fri Apr 20 23:53:41 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5504277 Bytes = 5375.27 kB = 5.25 MB Load Address: 00c00000 Entry Point: 00c00248 Image Name: Linux-4.17.0-rc1-g1e072be Created: Fri Apr 20 23:53:41 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5503849 Bytes = 5374.85 kB = 5.25 MB Load Address: 00c00000 Entry Point: 00c00248 Image Name: Linux-4.17.0-rc1-g1e072be Created: Fri Apr 20 23:53:41 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5504373 Bytes = 5375.36 kB = 5.25 MB Load Address: 00c00000 Entry Point: 00c00288 Image Name: Linux-4.17.0-rc1-g1e072be Created: Fri Apr 20 23:53:41 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5504315 Bytes = 5375.31 kB = 5.25 MB Load Address: 00c00000 Entry Point: 00c00288 Image Name: Linux-4.17.0-rc1-g1e072be Created: Fri Apr 20 23:53:41 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5504022 Bytes = 5375.02 kB = 5.25 MB Load Address: 00c00000 Entry Point: 00c00288 Image Name: Linux-4.17.0-rc1-g1e072be Created: Fri Apr 20 23:53:41 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5504165 Bytes = 5375.16 kB = 5.25 MB Load Address: 00c00000 Entry Point: 00c00248 Image Name: Linux-4.17.0-rc1-g1e072be Created: Fri Apr 20 23:53:41 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5504102 Bytes = 5375.10 kB = 5.25 MB Load Address: 00c00000 Entry Point: 00c00248 Image Name: Linux-4.17.0-rc1-g1e072be Created: Fri Apr 20 23:53:41 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5504342 Bytes = 5375.33 kB = 5.25 MB Load Address: 00c00000 Entry Point: 00c00248 Image Name: Linux-4.17.0-rc1-g1e072be Created: Fri Apr 20 23:53:41 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5504076 Bytes = 5375.07 kB = 5.25 MB Load Address: 00c00000 Entry Point: 00c00288 Image Name: Linux-4.17.0-rc1-g1e072be Created: Fri Apr 20 23:53:41 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5504283 Bytes = 5375.28 kB = 5.25 MB Load Address: 00c00000 Entry Point: 00c00248 Image Name: Linux-4.17.0-rc1-g1e072be Created: Fri Apr 20 23:53:41 2018 Image Type: PowerPC Linux Kernel Image (gzip compressed) Data Size: 5504488 Bytes = 5375.48 kB = 5.25 MB Load Address: 00c00000 Entry Point: 00c00248 Completed OK # rm -rf /kisskb/build/powerpc-fixes_mpc85xx_defconfig_powerpc # Build took: 0:01:38.415544