# git rev-parse -q --verify faa6d21153fd11e139dd880044521389b34a24f2^{commit}
faa6d21153fd11e139dd880044521389b34a24f2
already have revision, skipping fetch
# git checkout -q -f -B kisskb faa6d21153fd11e139dd880044521389b34a24f2
# git clean -qxdf
# < git log -1
# commit faa6d21153fd11e139dd880044521389b34a24f2
# Author: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
# Date:   Tue Sep 3 18:04:52 2019 +0530
# 
#     powerpc/nvdimm: use H_SCM_QUERY hcall on H_OVERLAP error
#     
#     Right now we force an unbind of SCM memory at drcindex on H_OVERLAP error.
#     This really slows down operations like kexec where we get the H_OVERLAP
#     error because we don't go through a full hypervisor re init.
#     
#     H_OVERLAP error for a H_SCM_BIND_MEM hcall indicates that SCM memory at
#     drc index is already bound. Since we don't specify a logical memory
#     address for bind hcall, we can use the H_SCM_QUERY hcall to query
#     the already bound logical address.
#     
#     Boot time difference with and without patch is:
#     
#     [    5.583617] IOMMU table initialized, virtual merging enabled
#     [    5.603041] papr_scm ibm,persistent-memory:ibm,pmemory@44104001: Retrying bind after unbinding
#     [  301.514221] papr_scm ibm,persistent-memory:ibm,pmemory@44108001: Retrying bind after unbinding
#     [  340.057238] hv-24x7: read 1530 catalog entries, created 537 event attrs (0 failures), 275 descs
#     
#     after fix
#     
#     [    5.101572] IOMMU table initialized, virtual merging enabled
#     [    5.116984] papr_scm ibm,persistent-memory:ibm,pmemory@44104001: Querying SCM details
#     [    5.117223] papr_scm ibm,persistent-memory:ibm,pmemory@44108001: Querying SCM details
#     [    5.120530] hv-24x7: read 1530 catalog entries, created 537 event attrs (0 failures), 275 descs
#     
#     Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.ibm.com>
#     Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
#     Link: https://lore.kernel.org/r/20190903123452.28620-2-aneesh.kumar@linux.ibm.com
# < /opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux-gcc --version
# < /opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux-ld --version
# < git log --format=%s --max-count=1 faa6d21153fd11e139dd880044521389b34a24f2
# < make -s -j 8 ARCH=mips O=/kisskb/build/powerpc-fixes_mips-defconfig_mipsel CROSS_COMPILE=/opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux-  defconfig
# make -s -j 8 ARCH=mips O=/kisskb/build/powerpc-fixes_mips-defconfig_mipsel CROSS_COMPILE=/opt/cross/kisskb/br-mipsel-o32-full-2016.08-613-ge98b4dd/bin/mipsel-linux-  
<stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp]
<stdin>:1511:2: warning: #warning syscall clone3 not implemented [-Wcpp]
FIT description: Linux 5.3.0-gfaa6d21153fd
Created:         Wed Sep 25 12:21:33 2019
 Image 0 (kernel@0)
  Description:  Linux 5.3.0-gfaa6d21153fd
  Created:      Wed Sep 25 12:21:33 2019
  Type:         Kernel Image
  Compression:  gzip compressed
  Data Size:    4753145 Bytes = 4641.74 KiB = 4.53 MiB
  Architecture: MIPS
  OS:           Linux
  Load Address: 0x80100000
  Entry Point:  0x808c1770
  Hash algo:    sha1
  Hash value:   d57be1db4fbb1ecad4f485468487d7ac57910c80
 Image 1 (fdt@boston)
  Description:  img,boston Device Tree
  Created:      Wed Sep 25 12:21:33 2019
  Type:         Flat Device Tree
  Compression:  uncompressed
  Data Size:    3793 Bytes = 3.70 KiB = 0.00 MiB
  Architecture: MIPS
  Hash algo:    sha1
  Hash value:   4799f50d688573234da6e9d7701234d394759ef4
 Image 2 (fdt@ni169445)
  Description:  NI 169445 device tree
  Created:      Wed Sep 25 12:21:33 2019
  Type:         Flat Device Tree
  Compression:  uncompressed
  Data Size:    1871 Bytes = 1.83 KiB = 0.00 MiB
  Architecture: MIPS
  Hash algo:    sha1
  Hash value:   51b89b31605ee62038c8468c429af091dfc75ec7
 Image 3 (fdt@ocelot_pcb123)
  Description:  MSCC Ocelot PCB123 Device Tree
  Created:      Wed Sep 25 12:21:33 2019
  Type:         Flat Device Tree
  Compression:  uncompressed
  Data Size:    4615 Bytes = 4.51 KiB = 0.00 MiB
  Architecture: MIPS
  Hash algo:    sha1
  Hash value:   8754eadee600cac22c9c34884cd901aac7e95e8a
 Image 4 (fdt@ocelot_pcb120)
  Description:  MSCC Ocelot PCB120 Device Tree
  Created:      Wed Sep 25 12:21:33 2019
  Type:         Flat Device Tree
  Compression:  uncompressed
  Data Size:    5174 Bytes = 5.05 KiB = 0.00 MiB
  Architecture: MIPS
  Hash algo:    sha1
  Hash value:   1ab7d0871c0a9345c6269fb491bf028224da8256
 Image 5 (fdt@xilfpga)
  Description:  MIPSfpga (xilfpga) Device Tree
  Created:      Wed Sep 25 12:21:33 2019
  Type:         Flat Device Tree
  Compression:  uncompressed
  Data Size:    2708 Bytes = 2.64 KiB = 0.00 MiB
  Architecture: MIPS
  Hash algo:    sha1
  Hash value:   63d058b780f65e22da30f0a183433765f1807f1d
 Default Configuration: 'conf@default'
 Configuration 0 (conf@default)
  Description:  Generic Linux kernel
  Kernel:       kernel@0
 Configuration 1 (conf@boston)
  Description:  Boston Linux kernel
  Kernel:       kernel@0
  FDT:          fdt@boston
 Configuration 2 (conf@ni169445)
  Description:  NI 169445 Linux Kernel
  Kernel:       kernel@0
  FDT:          fdt@ni169445
 Configuration 3 (conf@ocelot_pcb123)
  Description:  Ocelot Linux kernel
  Kernel:       kernel@0
  FDT:          fdt@ocelot_pcb123
 Configuration 4 (conf@ocelot_pcb120)
  Description:  Ocelot Linux kernel
  Kernel:       kernel@0
  FDT:          fdt@ocelot_pcb120
 Configuration 5 (conf@xilfpga)
  Description:  MIPSfpga Linux kernel
  Kernel:       kernel@0
  FDT:          fdt@xilfpga
Completed OK
# rm -rf /kisskb/build/powerpc-fixes_mips-defconfig_mipsel
# Build took: 0:02:30.168181