linux-toradex.git/arch/powerpc/kernel, branch v5.7-rc2 Linux kernel for Apalis and Colibri modules Merge tag 'powerpc-5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux 2020-04-09T18:01:42+00:00 Linus Torvalds torvalds@linux-foundation.org 2020-04-09T18:01:42+00:00 e4da01d8333e500e15a674d75885a9dfcfd31e77 Pull more powerpc updates from Michael Ellerman: "The bulk of this is the series to make CONFIG_COMPAT user-selectable, it's been around for a long time but was blocked behind the syscall-in-C series. Plus there's also a few fixes and other minor things. Summary: - A fix for a crash in machine check handling on pseries (ie. guests) - A small series to make it possible to disable CONFIG_COMPAT, and turn it off by default for ppc64le where it's not used. - A few other miscellaneous fixes and small improvements. Thanks to: Alexey Kardashevskiy, Anju T Sudhakar, Arnd Bergmann, Christophe Leroy, Dan Carpenter, Ganesh Goudar, Geert Uytterhoeven, Geoff Levand, Mahesh Salgaonkar, Markus Elfring, Michal Suchanek, Nicholas Piggin, Stephen Boyd, Wen Xiong" * tag 'powerpc-5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: selftests/powerpc: Always build the tm-poison test 64-bit powerpc: Improve ppc_save_regs() Revert "powerpc/64: irq_work avoid interrupt when called with hardware irqs enabled" powerpc/time: Replace <linux/clk-provider.h> by <linux/of_clk.h> powerpc/pseries/ddw: Extend upper limit for huge DMA window for persistent memory powerpc/perf: split callchain.c by bitness powerpc/64: Make COMPAT user-selectable disabled on littleendian by default. powerpc/64: make buildable without CONFIG_COMPAT powerpc/perf: consolidate valid_user_sp -> invalid_user_sp powerpc/perf: consolidate read_user_stack_32 powerpc: move common register copy functions from signal_32.c to signal.c powerpc: Add back __ARCH_WANT_SYS_LLSEEK macro powerpc/ps3: Set CONFIG_UEVENT_HELPER=y in ps3_defconfig powerpc/ps3: Remove an unneeded NULL check powerpc/ps3: Remove duplicate error message powerpc/powernv: Re-enable imc trace-mode in kernel powerpc/perf: Implement a global lock to avoid races between trace, core and thread imc events. powerpc/pseries: Fix MCE handling on pseries selftests/eeh: Skip ahci adapters powerpc/64s: Fix doorbell wakeup msgclr optimisation 
Pull more powerpc updates from Michael Ellerman:
 "The bulk of this is the series to make CONFIG_COMPAT user-selectable,
  it's been around for a long time but was blocked behind the
  syscall-in-C series.

  Plus there's also a few fixes and other minor things.

  Summary:

   - A fix for a crash in machine check handling on pseries (ie. guests)

   - A small series to make it possible to disable CONFIG_COMPAT, and
     turn it off by default for ppc64le where it's not used.

   - A few other miscellaneous fixes and small improvements.

  Thanks to: Alexey Kardashevskiy, Anju T Sudhakar, Arnd Bergmann,
  Christophe Leroy, Dan Carpenter, Ganesh Goudar, Geert Uytterhoeven,
  Geoff Levand, Mahesh Salgaonkar, Markus Elfring, Michal Suchanek,
  Nicholas Piggin, Stephen Boyd, Wen Xiong"

* tag 'powerpc-5.7-2' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  selftests/powerpc: Always build the tm-poison test 64-bit
  powerpc: Improve ppc_save_regs()
  Revert "powerpc/64: irq_work avoid interrupt when called with hardware irqs enabled"
  powerpc/time: Replace <linux/clk-provider.h> by <linux/of_clk.h>
  powerpc/pseries/ddw: Extend upper limit for huge DMA window for persistent memory
  powerpc/perf: split callchain.c by bitness
  powerpc/64: Make COMPAT user-selectable disabled on littleendian by default.
  powerpc/64: make buildable without CONFIG_COMPAT
  powerpc/perf: consolidate valid_user_sp -> invalid_user_sp
  powerpc/perf: consolidate read_user_stack_32
  powerpc: move common register copy functions from signal_32.c to signal.c
  powerpc: Add back __ARCH_WANT_SYS_LLSEEK macro
  powerpc/ps3: Set CONFIG_UEVENT_HELPER=y in ps3_defconfig
  powerpc/ps3: Remove an unneeded NULL check
  powerpc/ps3: Remove duplicate error message
  powerpc/powernv: Re-enable imc trace-mode in kernel
  powerpc/perf: Implement a global lock to avoid races between trace, core and thread imc events.
  powerpc/pseries: Fix MCE handling on pseries
  selftests/eeh: Skip ahci adapters
  powerpc/64s: Fix doorbell wakeup msgclr optimisation
asm-generic: fix unistd_32.h generation format 2020-04-07T17:43:42+00:00 Michal Simek michal.simek@xilinx.com 2020-04-07T03:09:23+00:00 06e85c7e9a1c1356038936566fc23f7c0d363b96 Generated files are also checked by sparse that's why add newline to remove sparse (C=1) warning. The issue was found on Microblaze and reported like this: ./arch/microblaze/include/generated/uapi/asm/unistd_32.h:438:45: warning: no newline at end of file Mips and PowerPC have it already but let's align with style used by m68k. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Reviewed-by: Stefan Asserhall <stefan.asserhall@xilinx.com> Acked-by: Max Filippov <jcmvbkbc@gmail.com> (xtensa) Cc: Arnd Bergmann <arnd@arndb.de> Cc: Max Filippov <jcmvbkbc@gmail.com> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Cc: Chris Zankel <chris@zankel.net> Cc: David S. Miller <davem@davemloft.net> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: Helge Deller <deller@gmx.de> Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru> Cc: James Bottomley <James.Bottomley@HansenPartnership.com> Cc: Matt Turner <mattst88@gmail.com> Cc: Michael Ellerman <mpe@ellerman.id.au> Cc: Paul Burton <paulburton@kernel.org> Cc: Paul Mackerras <paulus@samba.org> Cc: Ralf Baechle <ralf@linux-mips.org> Cc: Rich Felker <dalias@libc.org> Cc: Richard Henderson <rth@twiddle.net> Cc: Tony Luck <tony.luck@intel.com> Cc: Yoshinori Sato <ysato@users.sourceforge.jp> Link: http://lkml.kernel.org/r/4d32ab4e1fb2edb691d2e1687e8fb303c09fd023.1581504803.git.michal.simek@xilinx.com Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Generated files are also checked by sparse that's why add newline to
remove sparse (C=1) warning.

The issue was found on Microblaze and reported like this:
./arch/microblaze/include/generated/uapi/asm/unistd_32.h:438:45: warning:
no newline at end of file

Mips and PowerPC have it already but let's align with style used by m68k.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Reviewed-by: Stefan Asserhall <stefan.asserhall@xilinx.com>
Acked-by: Max Filippov <jcmvbkbc@gmail.com> (xtensa)
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Max Filippov <jcmvbkbc@gmail.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc: Chris Zankel <chris@zankel.net>
Cc: David S. Miller <davem@davemloft.net>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: Helge Deller <deller@gmx.de>
Cc: Ivan Kokshaysky <ink@jurassic.park.msu.ru>
Cc: James Bottomley <James.Bottomley@HansenPartnership.com>
Cc: Matt Turner <mattst88@gmail.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Paul Burton <paulburton@kernel.org>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Rich Felker <dalias@libc.org>
Cc: Richard Henderson <rth@twiddle.net>
Cc: Tony Luck <tony.luck@intel.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Link: http://lkml.kernel.org/r/4d32ab4e1fb2edb691d2e1687e8fb303c09fd023.1581504803.git.michal.simek@xilinx.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Merge tag 'powerpc-5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux 2020-04-05T18:12:59+00:00 Linus Torvalds torvalds@linux-foundation.org 2020-04-05T18:12:59+00:00 d38c07afc356ddebaa3ed8ecb3f553340e05c969 Pull powerpc updates from Michael Ellerman: "Slightly late as I had to rebase mid-week to insert a bug fix: - A large series from Nick for 64-bit to further rework our exception vectors, and rewrite portions of the syscall entry/exit and interrupt return in C. The result is much easier to follow code that is also faster in general. - Cleanup of our ptrace code to split various parts out that had become badly intertwined with #ifdefs over the years. - Changes to our NUMA setup under the PowerVM hypervisor which should hopefully avoid non-sensical topologies which can lead to warnings from the workqueue code and other problems. - MAINTAINERS updates to remove some of our old orphan entries and update the status of others. - Quite a few other small changes and fixes all over the map. Thanks to: Abdul Haleem, afzal mohammed, Alexey Kardashevskiy, Andrew Donnellan, Aneesh Kumar K.V, Balamuruhan S, Cédric Le Goater, Chen Zhou, Christophe JAILLET, Christophe Leroy, Christoph Hellwig, Clement Courbet, Daniel Axtens, David Gibson, Douglas Miller, Fabiano Rosas, Fangrui Song, Ganesh Goudar, Gautham R. Shenoy, Greg Kroah-Hartman, Greg Kurz, Gustavo Luiz Duarte, Hari Bathini, Ilie Halip, Jan Kara, Joe Lawrence, Joe Perches, Kajol Jain, Larry Finger, Laurentiu Tudor, Leonardo Bras, Libor Pechacek, Madhavan Srinivasan, Mahesh Salgaonkar, Masahiro Yamada, Masami Hiramatsu, Mauricio Faria de Oliveira, Michael Neuling, Michal Suchanek, Mike Rapoport, Nageswara R Sastry, Nathan Chancellor, Nathan Lynch, Naveen N. Rao, Nicholas Piggin, Nick Desaulniers, Oliver O'Halloran, Po-Hsu Lin, Pratik Rajesh Sampat, Rasmus Villemoes, Ravi Bangoria, Roman Bolshakov, Sam Bobroff, Sandipan Das, Santosh S, Sedat Dilek, Segher Boessenkool, Shilpasri G Bhat, Sourabh Jain, Srikar Dronamraju, Stephen Rothwell, Tyrel Datwyler, Vaibhav Jain, YueHaibing" * tag 'powerpc-5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (158 commits) powerpc: Make setjmp/longjmp signature standard powerpc/cputable: Remove unnecessary copy of cpu_spec->oprofile_type powerpc: Suppress .eh_frame generation powerpc: Drop -fno-dwarf2-cfi-asm powerpc/32: drop unused ISA_DMA_THRESHOLD powerpc/powernv: Add documentation for the opal sensor_groups sysfs interfaces selftests/powerpc: Fix try-run when source tree is not writable powerpc/vmlinux.lds: Explicitly retain .gnu.hash powerpc/ptrace: move ptrace_triggered() into hw_breakpoint.c powerpc/ptrace: create ppc_gethwdinfo() powerpc/ptrace: create ptrace_get_debugreg() powerpc/ptrace: split out ADV_DEBUG_REGS related functions. powerpc/ptrace: move register viewing functions out of ptrace.c powerpc/ptrace: split out TRANSACTIONAL_MEM related functions. powerpc/ptrace: split out SPE related functions. powerpc/ptrace: split out ALTIVEC related functions. powerpc/ptrace: split out VSX related functions. powerpc/ptrace: drop PARAMETER_SAVE_AREA_OFFSET powerpc/ptrace: drop unnecessary #ifdefs CONFIG_PPC64 powerpc/ptrace: remove unused header includes ... 
Pull powerpc updates from Michael Ellerman:
 "Slightly late as I had to rebase mid-week to insert a bug fix:

   - A large series from Nick for 64-bit to further rework our exception
     vectors, and rewrite portions of the syscall entry/exit and
     interrupt return in C. The result is much easier to follow code
     that is also faster in general.

   - Cleanup of our ptrace code to split various parts out that had
     become badly intertwined with #ifdefs over the years.

   - Changes to our NUMA setup under the PowerVM hypervisor which should
     hopefully avoid non-sensical topologies which can lead to warnings
     from the workqueue code and other problems.

   - MAINTAINERS updates to remove some of our old orphan entries and
     update the status of others.

   - Quite a few other small changes and fixes all over the map.

  Thanks to: Abdul Haleem, afzal mohammed, Alexey Kardashevskiy, Andrew
  Donnellan, Aneesh Kumar K.V, Balamuruhan S, Cédric Le Goater, Chen
  Zhou, Christophe JAILLET, Christophe Leroy, Christoph Hellwig, Clement
  Courbet, Daniel Axtens, David Gibson, Douglas Miller, Fabiano Rosas,
  Fangrui Song, Ganesh Goudar, Gautham R. Shenoy, Greg Kroah-Hartman,
  Greg Kurz, Gustavo Luiz Duarte, Hari Bathini, Ilie Halip, Jan Kara,
  Joe Lawrence, Joe Perches, Kajol Jain, Larry Finger, Laurentiu Tudor,
  Leonardo Bras, Libor Pechacek, Madhavan Srinivasan, Mahesh Salgaonkar,
  Masahiro Yamada, Masami Hiramatsu, Mauricio Faria de Oliveira, Michael
  Neuling, Michal Suchanek, Mike Rapoport, Nageswara R Sastry, Nathan
  Chancellor, Nathan Lynch, Naveen N. Rao, Nicholas Piggin, Nick
  Desaulniers, Oliver O'Halloran, Po-Hsu Lin, Pratik Rajesh Sampat,
  Rasmus Villemoes, Ravi Bangoria, Roman Bolshakov, Sam Bobroff,
  Sandipan Das, Santosh S, Sedat Dilek, Segher Boessenkool, Shilpasri G
  Bhat, Sourabh Jain, Srikar Dronamraju, Stephen Rothwell, Tyrel
  Datwyler, Vaibhav Jain, YueHaibing"

* tag 'powerpc-5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (158 commits)
  powerpc: Make setjmp/longjmp signature standard
  powerpc/cputable: Remove unnecessary copy of cpu_spec->oprofile_type
  powerpc: Suppress .eh_frame generation
  powerpc: Drop -fno-dwarf2-cfi-asm
  powerpc/32: drop unused ISA_DMA_THRESHOLD
  powerpc/powernv: Add documentation for the opal sensor_groups sysfs interfaces
  selftests/powerpc: Fix try-run when source tree is not writable
  powerpc/vmlinux.lds: Explicitly retain .gnu.hash
  powerpc/ptrace: move ptrace_triggered() into hw_breakpoint.c
  powerpc/ptrace: create ppc_gethwdinfo()
  powerpc/ptrace: create ptrace_get_debugreg()
  powerpc/ptrace: split out ADV_DEBUG_REGS related functions.
  powerpc/ptrace: move register viewing functions out of ptrace.c
  powerpc/ptrace: split out TRANSACTIONAL_MEM related functions.
  powerpc/ptrace: split out SPE related functions.
  powerpc/ptrace: split out ALTIVEC related functions.
  powerpc/ptrace: split out VSX related functions.
  powerpc/ptrace: drop PARAMETER_SAVE_AREA_OFFSET
  powerpc/ptrace: drop unnecessary #ifdefs CONFIG_PPC64
  powerpc/ptrace: remove unused header includes
  ...
powerpc: Improve ppc_save_regs() 2020-04-04T10:40:57+00:00 Nicholas Piggin npiggin@gmail.com 2020-04-03T13:10:05+00:00 d16a58f8854b194c964a4bbe8156ec624ebfdbd2 Make ppc_save_regs() a bit more useful: - Set NIP to our caller rather rather than the caller's caller (which is what we save to LR in the stack frame). - Set SOFTE to the current irq soft-mask state rather than uninitialised. - Zero CFAR rather than leave it uninitialised. In qemu, injecting a nmi to an idle CPU gives a nicer stack trace (note NIP, IRQMASK, CFAR). Oops: System Reset, sig: 6 [#1] LE PAGE_SIZE=64K MMU=Hash PREEMPT SMP NR_CPUS=2048 NUMA PowerNV Modules linked in: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.6.0-rc2-00429-ga76e38fd80bf #1277 NIP: c0000000000b6e5c LR: c0000000000b6e5c CTR: c000000000b06270 REGS: c00000000173fb08 TRAP: 0100 Not tainted MSR: 9000000000001033 <SF,HV,ME,IR,DR,RI,LE> CR: 28000224 XER: 00000000 CFAR: c0000000016a2128 IRQMASK: c00000000173fc80 GPR00: c0000000000b6e5c c00000000173fc80 c000000001743400 c00000000173fb08 GPR04: 0000000000000000 0000000000000000 0000000000000008 0000000000000001 GPR08: 00000001fea80000 0000000000000000 0000000000000000 ffffffffffffffff GPR12: c000000000b06270 c000000001930000 00000000300026c0 0000000000000000 GPR16: 0000000000000000 0000000000000000 0000000000000003 c0000000016a2128 GPR20: c0000001ffc97148 0000000000000001 c000000000f289a8 0000000000080000 GPR24: c0000000016e1480 000000011dc870ba 0000000000000000 0000000000000003 GPR28: c0000000016a2128 c0000001ffc97148 c0000000016a2260 0000000000000003 NIP [c0000000000b6e5c] power9_idle_type+0x5c/0x70 LR [c0000000000b6e5c] power9_idle_type+0x5c/0x70 Call Trace: [c00000000173fc80] [c0000000000b6e5c] power9_idle_type+0x5c/0x70 (unreliable) [c00000000173fcb0] [c000000000b062b0] stop_loop+0x40/0x60 [c00000000173fce0] [c000000000b022d8] cpuidle_enter_state+0xa8/0x660 [c00000000173fd60] [c000000000b0292c] cpuidle_enter+0x4c/0x70 [c00000000173fda0] [c00000000017624c] call_cpuidle+0x4c/0x90 [c00000000173fdc0] [c000000000176768] do_idle+0x338/0x460 [c00000000173fe60] [c000000000176b3c] cpu_startup_entry+0x3c/0x40 [c00000000173fe90] [c0000000000126b4] rest_init+0x124/0x140 [c00000000173fed0] [c0000000010948d4] start_kernel+0x938/0x988 [c00000000173ff90] [c00000000000cdcc] start_here_common+0x1c/0x20 Oops: System Reset, sig: 6 [#1] LE PAGE_SIZE=64K MMU=Hash PREEMPT SMP NR_CPUS=2048 NUMA PowerNV Modules linked in: CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.6.0-rc2-00430-gddce91b8712f #1278 NIP: c00000000001d150 LR: c0000000000b6e5c CTR: c000000000b06270 REGS: c00000000173fb08 TRAP: 0100 Not tainted MSR: 9000000000001033 <SF,HV,ME,IR,DR,RI,LE> CR: 28000224 XER: 00000000 CFAR: 0000000000000000 IRQMASK: 1 GPR00: c0000000000b6e5c c00000000173fc80 c000000001743400 c00000000173fb08 GPR04: 0000000000000000 0000000000000000 0000000000000008 0000000000000001 GPR08: 00000001fea80000 0000000000000000 0000000000000000 ffffffffffffffff GPR12: c000000000b06270 c000000001930000 00000000300026c0 0000000000000000 GPR16: 0000000000000000 0000000000000000 0000000000000003 c0000000016a2128 GPR20: c0000001ffc97148 0000000000000001 c000000000f289a8 0000000000080000 GPR24: c0000000016e1480 00000000b68db8ce 0000000000000000 0000000000000003 GPR28: c0000000016a2128 c0000001ffc97148 c0000000016a2260 0000000000000003 NIP [c00000000001d150] replay_system_reset+0x30/0xa0 LR [c0000000000b6e5c] power9_idle_type+0x5c/0x70 Call Trace: [c00000000173fc80] [c0000000000b6e5c] power9_idle_type+0x5c/0x70 (unreliable) [c00000000173fcb0] [c000000000b062b0] stop_loop+0x40/0x60 [c00000000173fce0] [c000000000b022d8] cpuidle_enter_state+0xa8/0x660 [c00000000173fd60] [c000000000b0292c] cpuidle_enter+0x4c/0x70 [c00000000173fda0] [c00000000017624c] call_cpuidle+0x4c/0x90 [c00000000173fdc0] [c000000000176768] do_idle+0x338/0x460 [c00000000173fe60] [c000000000176b38] cpu_startup_entry+0x38/0x40 [c00000000173fe90] [c0000000000126b4] rest_init+0x124/0x140 [c00000000173fed0] [c0000000010948d4] start_kernel+0x938/0x988 [c00000000173ff90] [c00000000000cdcc] start_here_common+0x1c/0x20 Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200403131006.123243-1-npiggin@gmail.com 
Make ppc_save_regs() a bit more useful:
  - Set NIP to our caller rather rather than the caller's
    caller (which is what we save to LR in the stack frame).
  - Set SOFTE to the current irq soft-mask state rather than
    uninitialised.
  - Zero CFAR rather than leave it uninitialised.

In qemu, injecting a nmi to an idle CPU gives a nicer stack
trace (note NIP, IRQMASK, CFAR).

  Oops: System Reset, sig: 6 [#1]
  LE PAGE_SIZE=64K MMU=Hash PREEMPT SMP NR_CPUS=2048 NUMA PowerNV
  Modules linked in:
  CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.6.0-rc2-00429-ga76e38fd80bf #1277
  NIP:  c0000000000b6e5c LR: c0000000000b6e5c CTR: c000000000b06270
  REGS: c00000000173fb08 TRAP: 0100   Not tainted
  MSR:  9000000000001033 <SF,HV,ME,IR,DR,RI,LE>  CR: 28000224  XER: 00000000
  CFAR: c0000000016a2128 IRQMASK: c00000000173fc80
  GPR00: c0000000000b6e5c c00000000173fc80 c000000001743400 c00000000173fb08
  GPR04: 0000000000000000 0000000000000000 0000000000000008 0000000000000001
  GPR08: 00000001fea80000 0000000000000000 0000000000000000 ffffffffffffffff
  GPR12: c000000000b06270 c000000001930000 00000000300026c0 0000000000000000
  GPR16: 0000000000000000 0000000000000000 0000000000000003 c0000000016a2128
  GPR20: c0000001ffc97148 0000000000000001 c000000000f289a8 0000000000080000
  GPR24: c0000000016e1480 000000011dc870ba 0000000000000000 0000000000000003
  GPR28: c0000000016a2128 c0000001ffc97148 c0000000016a2260 0000000000000003
  NIP [c0000000000b6e5c] power9_idle_type+0x5c/0x70
  LR [c0000000000b6e5c] power9_idle_type+0x5c/0x70
  Call Trace:
  [c00000000173fc80] [c0000000000b6e5c] power9_idle_type+0x5c/0x70 (unreliable)
  [c00000000173fcb0] [c000000000b062b0] stop_loop+0x40/0x60
  [c00000000173fce0] [c000000000b022d8] cpuidle_enter_state+0xa8/0x660
  [c00000000173fd60] [c000000000b0292c] cpuidle_enter+0x4c/0x70
  [c00000000173fda0] [c00000000017624c] call_cpuidle+0x4c/0x90
  [c00000000173fdc0] [c000000000176768] do_idle+0x338/0x460
  [c00000000173fe60] [c000000000176b3c] cpu_startup_entry+0x3c/0x40
  [c00000000173fe90] [c0000000000126b4] rest_init+0x124/0x140
  [c00000000173fed0] [c0000000010948d4] start_kernel+0x938/0x988
  [c00000000173ff90] [c00000000000cdcc] start_here_common+0x1c/0x20

  Oops: System Reset, sig: 6 [#1]
  LE PAGE_SIZE=64K MMU=Hash PREEMPT SMP NR_CPUS=2048 NUMA PowerNV
  Modules linked in:
  CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.6.0-rc2-00430-gddce91b8712f #1278
  NIP:  c00000000001d150 LR: c0000000000b6e5c CTR: c000000000b06270
  REGS: c00000000173fb08 TRAP: 0100   Not tainted
  MSR:  9000000000001033 <SF,HV,ME,IR,DR,RI,LE>  CR: 28000224  XER: 00000000
  CFAR: 0000000000000000 IRQMASK: 1
  GPR00: c0000000000b6e5c c00000000173fc80 c000000001743400 c00000000173fb08
  GPR04: 0000000000000000 0000000000000000 0000000000000008 0000000000000001
  GPR08: 00000001fea80000 0000000000000000 0000000000000000 ffffffffffffffff
  GPR12: c000000000b06270 c000000001930000 00000000300026c0 0000000000000000
  GPR16: 0000000000000000 0000000000000000 0000000000000003 c0000000016a2128
  GPR20: c0000001ffc97148 0000000000000001 c000000000f289a8 0000000000080000
  GPR24: c0000000016e1480 00000000b68db8ce 0000000000000000 0000000000000003
  GPR28: c0000000016a2128 c0000001ffc97148 c0000000016a2260 0000000000000003
  NIP [c00000000001d150] replay_system_reset+0x30/0xa0
  LR [c0000000000b6e5c] power9_idle_type+0x5c/0x70
  Call Trace:
  [c00000000173fc80] [c0000000000b6e5c] power9_idle_type+0x5c/0x70 (unreliable)
  [c00000000173fcb0] [c000000000b062b0] stop_loop+0x40/0x60
  [c00000000173fce0] [c000000000b022d8] cpuidle_enter_state+0xa8/0x660
  [c00000000173fd60] [c000000000b0292c] cpuidle_enter+0x4c/0x70
  [c00000000173fda0] [c00000000017624c] call_cpuidle+0x4c/0x90
  [c00000000173fdc0] [c000000000176768] do_idle+0x338/0x460
  [c00000000173fe60] [c000000000176b38] cpu_startup_entry+0x38/0x40
  [c00000000173fe90] [c0000000000126b4] rest_init+0x124/0x140
  [c00000000173fed0] [c0000000010948d4] start_kernel+0x938/0x988
  [c00000000173ff90] [c00000000000cdcc] start_here_common+0x1c/0x20

Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200403131006.123243-1-npiggin@gmail.com
Merge tag 'spdx-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx 2020-04-03T20:12:26+00:00 Linus Torvalds torvalds@linux-foundation.org 2020-04-03T20:12:26+00:00 ff2ae607c6f329d11a3b0528801ea7474be8c3e9 Pull SPDX updates from Greg KH: "Here are three SPDX patches for 5.7-rc1. One fixes up the SPDX tag for a single driver, while the other two go through the tree and add SPDX tags for all of the .gitignore files as needed. Nothing too complex, but you will get a merge conflict with your current tree, that should be trivial to handle (one file modified by two things, one file deleted.) All three of these have been in linux-next for a while, with no reported issues other than the merge conflict" * tag 'spdx-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx: ASoC: MT6660: make spdxcheck.py happy .gitignore: add SPDX License Identifier .gitignore: remove too obvious comments 
Pull SPDX updates from Greg KH:
 "Here are three SPDX patches for 5.7-rc1.

  One fixes up the SPDX tag for a single driver, while the other two go
  through the tree and add SPDX tags for all of the .gitignore files as
  needed.

  Nothing too complex, but you will get a merge conflict with your
  current tree, that should be trivial to handle (one file modified by
  two things, one file deleted.)

  All three of these have been in linux-next for a while, with no
  reported issues other than the merge conflict"

* tag 'spdx-5.7-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx:
  ASoC: MT6660: make spdxcheck.py happy
  .gitignore: add SPDX License Identifier
  .gitignore: remove too obvious comments
Revert "powerpc/64: irq_work avoid interrupt when called with hardware irqs enabled" 2020-04-03T05:55:34+00:00 Nicholas Piggin npiggin@gmail.com 2020-04-02T12:04:01+00:00 abc3fce76adbdfa8f87272c784b388cd20b46049 This reverts commit ebb37cf3ffd39fdb6ec5b07111f8bb2f11d92c5f. That commit does not play well with soft-masked irq state manipulations in idle, interrupt replay, and possibly others due to tracing code sometimes using irq_work_queue (e.g., in trace_hardirqs_on()). That can cause PACA_IRQ_DEC to become set when it is not expected, and be ignored or cleared or cause warnings. The net result seems to be missing an irq_work until the next timer interrupt in the worst case which is usually not going to be noticed, however it could be a long time if the tick is disabled, which is against the spirit of irq_work and might cause real problems. The idea is still solid, but it would need more work. It's not really clear if it would be worth added complexity, so revert this for now (not a straight revert, but replace with a comment explaining why we might see interrupts happening, and gives git blame something to find). Fixes: ebb37cf3ffd3 ("powerpc/64: irq_work avoid interrupt when called with hardware irqs enabled") Signed-off-by: Nicholas Piggin <npiggin@gmail.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200402120401.1115883-1-npiggin@gmail.com 
This reverts commit ebb37cf3ffd39fdb6ec5b07111f8bb2f11d92c5f.

That commit does not play well with soft-masked irq state
manipulations in idle, interrupt replay, and possibly others due to
tracing code sometimes using irq_work_queue (e.g., in
trace_hardirqs_on()). That can cause PACA_IRQ_DEC to become set when
it is not expected, and be ignored or cleared or cause warnings.

The net result seems to be missing an irq_work until the next timer
interrupt in the worst case which is usually not going to be noticed,
however it could be a long time if the tick is disabled, which is
against the spirit of irq_work and might cause real problems.

The idea is still solid, but it would need more work. It's not really
clear if it would be worth added complexity, so revert this for
now (not a straight revert, but replace with a comment explaining why
we might see interrupts happening, and gives git blame something to
find).

Fixes: ebb37cf3ffd3 ("powerpc/64: irq_work avoid interrupt when called with hardware irqs enabled")
Signed-off-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200402120401.1115883-1-npiggin@gmail.com
powerpc/time: Replace <linux/clk-provider.h> by <linux/of_clk.h> 2020-04-03T05:17:22+00:00 Geert Uytterhoeven geert+renesas@glider.be 2020-02-13T08:38:04+00:00 60083063b755e29685902609e024ecd0c4a1a7d9 The PowerPC time code is not a clock provider, and just needs to call of_clk_init(). Hence it can include <linux/of_clk.h> instead of <linux/clk-provider.h>. Remove the #ifdef protecting the of_clk_init() call, as a stub is available for the !CONFIG_COMMON_CLK case. Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be> Reviewed-by: Stephen Boyd <sboyd@kernel.org> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/20200213083804.24315-1-geert+renesas@glider.be 
The PowerPC time code is not a clock provider, and just needs to call
of_clk_init().

Hence it can include <linux/of_clk.h> instead of <linux/clk-provider.h>.

Remove the #ifdef protecting the of_clk_init() call, as a stub is
available for the !CONFIG_COMMON_CLK case.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Stephen Boyd <sboyd@kernel.org>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20200213083804.24315-1-geert+renesas@glider.be
Merge tag 'devicetree-for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux 2020-04-03T00:32:52+00:00 Linus Torvalds torvalds@linux-foundation.org 2020-04-03T00:32:52+00:00 bef7b2a7be28638770972ab2709adf11d601c11a Pull devicetree updates from Rob Herring: - Unit test for overlays with GPIO hogs - Improve dma-ranges parsing to handle dma-ranges with multiple entries - Update dtc to upstream version v1.6.0-2-g87a656ae5ff9 - Improve overlay error reporting - Device link support for power-domains and hwlocks bindings - Add vendor prefixes for Beacon, Topwise, ENE, Dell, SG Micro, Elida, PocketBook, Xiaomi, Linutronix, OzzMaker, Waveshare Electronics, and ITE Tech - Add deprecated Marvell vendor prefix 'mrvl' - A bunch of binding conversions to DT schema continues. Of note, the common serial and USB connector bindings are converted. - Add more Arm CPU compatibles - Drop Mark Rutland as DT maintainer :( * tag 'devicetree-for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (106 commits) MAINTAINERS: drop an old reference to stm32 pwm timers doc MAINTAINERS: dt: update etnaviv file reference dt-bindings: usb: dwc2: fix bindings for amlogic, meson-gxbb-usb dt-bindings: uniphier-system-bus: fix warning in the example dt-bindings: display: meson-vpu: fix indentation of reg-names' "items" dt-bindings: iio: Fix adi, ltc2983 uint64-matrix schema constraints dt-bindings: power: Fix example for power-domain dt-bindings: arm: Add some constraints for PSCI nodes of: some unittest overlays not untracked of: gpio unittest kfree() wrong object dt-bindings: phy: convert phy-rockchip-inno-usb2 bindings to yaml dt-bindings: serial: sh-sci: Convert to json-schema dt-bindings: serial: Document serialN aliases dt-bindings: thermal: tsens: Set 'additionalProperties: false' dt-bindings: thermal: tsens: Fix nvmem-cell-names schema dt-bindings: vendor-prefixes: Add Beacon vendor prefix dt-bindings: vendor-prefixes: Add Topwise of: of_private.h: Replace zero-length array with flexible-array member docs: dt: fix a broken reference to input.yaml docs: dt: fix references to ap806-system-controller.txt ... 
Pull devicetree updates from Rob Herring:

 - Unit test for overlays with GPIO hogs

 - Improve dma-ranges parsing to handle dma-ranges with multiple entries

 - Update dtc to upstream version v1.6.0-2-g87a656ae5ff9

 - Improve overlay error reporting

 - Device link support for power-domains and hwlocks bindings

 - Add vendor prefixes for Beacon, Topwise, ENE, Dell, SG Micro, Elida,
   PocketBook, Xiaomi, Linutronix, OzzMaker, Waveshare Electronics, and
   ITE Tech

 - Add deprecated Marvell vendor prefix 'mrvl'

 - A bunch of binding conversions to DT schema continues. Of note, the
   common serial and USB connector bindings are converted.

 - Add more Arm CPU compatibles

 - Drop Mark Rutland as DT maintainer :(

* tag 'devicetree-for-5.7' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (106 commits)
  MAINTAINERS: drop an old reference to stm32 pwm timers doc
  MAINTAINERS: dt: update etnaviv file reference
  dt-bindings: usb: dwc2: fix bindings for amlogic, meson-gxbb-usb
  dt-bindings: uniphier-system-bus: fix warning in the example
  dt-bindings: display: meson-vpu: fix indentation of reg-names' "items"
  dt-bindings: iio: Fix adi, ltc2983 uint64-matrix schema constraints
  dt-bindings: power: Fix example for power-domain
  dt-bindings: arm: Add some constraints for PSCI nodes
  of: some unittest overlays not untracked
  of: gpio unittest kfree() wrong object
  dt-bindings: phy: convert phy-rockchip-inno-usb2 bindings to yaml
  dt-bindings: serial: sh-sci: Convert to json-schema
  dt-bindings: serial: Document serialN aliases
  dt-bindings: thermal: tsens: Set 'additionalProperties: false'
  dt-bindings: thermal: tsens: Fix nvmem-cell-names schema
  dt-bindings: vendor-prefixes: Add Beacon vendor prefix
  dt-bindings: vendor-prefixes: Add Topwise
  of: of_private.h: Replace zero-length array with flexible-array member
  docs: dt: fix a broken reference to input.yaml
  docs: dt: fix references to ap806-system-controller.txt
  ...
powerpc/64: make buildable without CONFIG_COMPAT 2020-04-02T13:10:00+00:00 Michal Suchanek msuchanek@suse.de 2020-03-20T10:20:16+00:00 0a7601b6ffddec11d7cc0bc3264daf0159f5e1a6 There are numerous references to 32bit functions in generic and 64bit code so ifdef them out. Signed-off-by: Michal Suchanek <msuchanek@suse.de> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/e5619617020ef3a1f54f0c076e7d74cb9ec9f3bf.1584699455.git.msuchanek@suse.de 
There are numerous references to 32bit functions in generic and 64bit
code so ifdef them out.

Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/e5619617020ef3a1f54f0c076e7d74cb9ec9f3bf.1584699455.git.msuchanek@suse.de
powerpc: move common register copy functions from signal_32.c to signal.c 2020-04-02T13:09:59+00:00 Michal Suchanek msuchanek@suse.de 2020-03-20T10:20:13+00:00 3dd4eb83a9c08ed6af482a5417323a6c8f4fc7a7 These functions are required for 64bit as well. Signed-off-by: Michal Suchanek <msuchanek@suse.de> Reviewed-by: Christophe Leroy <christophe.leroy@c-s.fr> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au> Link: https://lore.kernel.org/r/9fd6d9b7c5e91fab21159fe23534a2f16b4962d3.1584699455.git.msuchanek@suse.de 
These functions are required for 64bit as well.

Signed-off-by: Michal Suchanek <msuchanek@suse.de>
Reviewed-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/9fd6d9b7c5e91fab21159fe23534a2f16b4962d3.1584699455.git.msuchanek@suse.de