[PATCH 2/2] drivers/clocksource/pistachio: improve register offset calculation

-0x38) are larger than a single timer register set size (0x20). Change the code to define timer-specific register offsets as offsets from the first timer register to make the code easier to understand and better reflect the register layout. Signed-off-by: Marcin Nowakowski <marcin.nowa

[PATCH 1/2] drivers/clocksource/pistachio: fix memory corruption in init

d what has previously gone unnoticed now leads to a kernel panic during boot. Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> --- drivers/clocksource/time-pistachio.c | 8 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/clocksource/time-pistac

Re: [PATCH 10/21] MIPS memblock: Discard bootmem allocator initialization

Hi Serge, On 19.12.2016 03:07, Serge Semin wrote: Bootmem allocator initialization needs to be discarded. PFN limit constants are still in use by some subsystems, so they need to be properly initialized. The initialization is moved into a separate method and performed with help of commonly used

Re: [PATCH 04/21] MIPS memblock: Alter user-defined memory parameter parser

Hi Serge, On 19.12.2016 03:07, Serge Semin wrote: Both new memblock and boot_mem_map subsystems need to be fully cleared before a new memory region is added. So the early parser is correspondingly modified. Signed-off-by: Serge Semin --- arch/mips/kernel/setup.c | 67

Re: [PATCH 00/21] MIPS memblock: Remove bootmem code and switch to NO_BOOTMEM

Hi Serge, Thanks for this patch series, it's really useful. I've tested it on Malta and Ci40 and it seems to work well (I've posted a few small comments separately). On 19.12.2016 03:07, Serge Semin wrote: Most of the modern platforms supported by linux kernel have already been cleaned up

[PATCH 1/1] irqchip/mips-gic: Fix local interrupts

attempting to use perf tool to access hardware performance counters. Fix this by explicitly calling irq_create_fwspec_mapping() for local interrupts. Fixes: e875bd66dfb ("irqchip/mips-gic: Fix local interrupts") Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com>

Re: [PATCH 1/2] pwm: loongson1: Add PWM driver for Loongson1 SoC

Hi Yang, On 13.02.2017 16:28, Yang Ling wrote: Add support for the PWM controller present in Loongson1 family of SoCs. Signed-off-by: Yang Ling --- drivers/pwm/Kconfig | 9 +++ drivers/pwm/Makefile| 1 + drivers/pwm/pwm-loongson1.c | 169

[PATCH] Kbuild: add cpp_its_S in ksym_dep_filter

Add a new command cpp_its_S introduced in: cf2a5e0bb4c6 ("MIPS: Support generating Flattened Image Trees (.itb)") to ksym_dep_filter handler - otherwise a warning is produced during the build of MIPS platforms (when vmlinux.*.itb target is chosen) Signed-off-by: Marcin Nowakowski <m

[PATCH RESEND] Kbuild: add cpp_its_S in ksym_dep_filter

Add a new command cpp_its_S introduced in: cf2a5e0bb4c6 ("MIPS: Support generating Flattened Image Trees (.itb)") to ksym_dep_filter handler - otherwise a warning is produced during the build of MIPS platforms (when vmlinux.*.itb target is chosen) Signed-off-by: Marcin Nowakowski <m

Re: [PATCH 1/2] pwm: loongson1: Add PWM driver for Loongson1 SoC

Hi Yang, On 15.02.2017 14:09, Yang Ling wrote: + tmp = (unsigned long long)clk_get_rate(pc->clk) * period_ns; + do_div(tmp, 10); NSEC_PER_SEC ? + period = tmp; + + tmp = (unsigned long long)period * duty_ns; + do_div(tmp, period_ns); + duty =

Re: [PATCH] tools/lib/api: allow the linker to be overridden

Hi Arnaldo, On 15.02.2017 16:18, Arnaldo Carvalho de Melo wrote: Em Wed, Feb 15, 2017 at 03:56:30PM +0100, Marcin Nowakowski escreveu: Makefile in lib/api unconditionally sets the LD to support cross-compilation. However, when invoked from within the perf build LD may be already appropriately

[PATCH] tools/lib/api: allow the linker to be overridden

override to a conditional one. Fixes: 37b4e2020a5f ('perf build: Add EXTRA_LDFLAGS option to makefile') Fixes: 703e01652d25 ('tools lib api: Respect CROSS_COMPILE for the linker') Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> --- tools/lib/api/Makefile | 2 +- 1 file chan

[PATCH] uprobes: remove function declarations from arch/{mips,s390}

The declarations of arch-specific functions have been moved to a common header in commit 3820b4d2789f ('uprobes: Move function declarations out of arch'), but MIPS and S390 has added them to their own trees later. Remove the unnecessary duplicates. Signed-off-by: Marcin Nowakowski <marcin.nowa

Re: [PATCH] uprobes: remove function declarations from arch/{mips,s390}

Hi Andrew, On 03.09.2016 12:59, Heiko Carstens wrote: Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> --- arch/mips/include/asm/uprobes.h | 12 arch/s390/include/asm/uprobes.h | 10 -- 2 files changed, 22 deletions(-) You may either split this

Re: [PATCH 1/2] tracing/syscalls: allow multiple syscall numbers per syscall

On 31.08.2016 01:28, Steven Rostedt wrote: On Tue, 30 Aug 2016 16:09:04 -0700 Andy Lutomirski wrote: But none of this should be a problem at all for MIPS, right? AFAICT the only problem for MIPS is that there *is* a mapping from metadata to nr. If that mapping got

Re: [PATCH 1/2] tracing/syscalls: allow multiple syscall numbers per syscall

On 30.08.2016 01:55, Andy Lutomirski wrote: On Aug 29, 2016 11:30 AM, "Marcin Nowakowski" <marcin.nowakow...@imgtec.com> wrote: Syscall metadata makes an assumption that only a single syscall number corresponds to a given method. This is true for most archs, but can break t

Re: [PATCH 1/2] tracing/syscalls: allow multiple syscall numbers per syscall

On 31.08.2016 02:01, Andy Lutomirski wrote: On Tue, Aug 30, 2016 at 4:28 PM, Steven Rostedt wrote: On Tue, 30 Aug 2016 16:09:04 -0700 Andy Lutomirski wrote: But none of this should be a problem at all for MIPS, right? AFAICT the only problem for

Re: [RFC PATCH 2/3] tracing/syscalls: add handling for compat tasks

Hi Andy, Thanks for your review and the comments, I'll address them in a next iteration. Do you have any other comments on the complete patchset? On 12.09.2016 19:35, Andy Lutomirski wrote: On Sep 9, 2016 1:04 AM, "Marcin Nowakowski" <marcin.nowakow...@imgtec.com> wrote: Ex

[PATCH v2 03/11] tracing/syscalls: add compat syscall metadata

Now that compat syscalls are properly distinguished from native calls, we can add metadata for compat syscalls as well. All the macros used to generate the metadata are the same as for standard syscalls, but with a compat_ prefix to distinguish them easily. Signed-off-by: Marcin Nowakowski

[PATCH v2 06/11] s390/tracing: fix compat syscall handling

Add missing arch code - arch_trace_is_compat_syscall and arch_syscall_addr Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> Cc: Steven Rostedt <rost...@goodmis.org> Cc: Ingo Molnar <mi...@redhat.com> Cc: Martin Schwidefsky <schwidef...@de.ibm.com> Cc: Hei

[PATCH v2 04/11] syscall/tracing: allow arch to override syscall_get_nr for ftrace

the regs provided. This will be used by x86 in a follow-up change. Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> Cc: Steven Rostedt <rost...@goodmis.org> Cc: Ingo Molnar <mi...@redhat.com> --- kernel/trace/trace_syscalls.c | 4 1 file changed, 4 inserti

[PATCH v2 11/11] parisc/tracing: fix compat syscall handling

Add missing arch code - arch_trace_is_compat_syscall and arch_syscall_addr Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> Cc: Steven Rostedt <rost...@goodmis.org> Cc: Ingo Molnar <mi...@redhat.com> Cc: "James E.J. Bottomley" <j...@parisc-linux.org&g

[PATCH v2 02/11] tracing/syscalls: add handling for compat tasks

-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> Cc: Steven Rostedt <rost...@goodmis.org> Cc: Ingo Molnar <mi...@redhat.com> --- arch/mips/kernel/ftrace.c | 4 +- arch/powerpc/kernel/ftrace.c | 2 +- include/linux/ftrace.h| 2 +- kernel/trace/trac

[PATCH v2 01/11] tracing/syscalls: remove syscall_nr from syscall metadata

syscall lookup together with the syscall metadata table traversal to register for appropriate events instead. This slightly increases the overhead during event (un)registration, but does not impact the trace events themselves, which still use syscall numbers directly. Signed-off-by: Marcin Nowakowski

[PATCH v2 00/11] syscall/tracing: compat syscall support

things work as previously until arch-specific patch is applied. The only exception here is x86 which had extra methods to prevent incorrect syscall reporting for compat tasks - this may happen after patch 2 is applied and without x86/tracing patch. Marcin Nowakowski (11): tracing/syscalls: remove

[PATCH v2 07/11] arm64/tracing: fix compat syscall handling

Add arch_syscall_addr for arm64 and define NR_compat_syscalls, as the number of compat syscalls for arm64 exceeds the number defined by NR_syscalls. Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> Cc: Steven Rostedt <rost...@goodmis.org> Cc: Ingo Molnar <mi...

[PATCH v2 08/11] powerpc/tracing: fix compat syscall handling

Adapt the code to make use of new syscall handling interface Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> Cc: Steven Rostedt <rost...@goodmis.org> Cc: Ingo Molnar <mi...@redhat.com> Cc: Benjamin Herrenschmidt <b...@kernel.crashing.org> Cc: Paul Mackerr

[PATCH v2 10/11] sparc/tracing: fix compat syscall handling

Add missing arch code - arch_trace_is_compat_syscall and arch_syscall_addr Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> Cc: Steven Rostedt <rost...@goodmis.org> Cc: Ingo Molnar <mi...@redhat.com> Cc: "David S. Miller" <da...@davemloft.net&

[PATCH v2 09/11] tile/tracing: fix compat syscall handling

Add missing arch code - arch_trace_is_compat_syscall and arch_syscall_addr Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> Cc:Cc: Steven Rostedt <rost...@goodmis.org> Cc: Ingo Molnar <mi...@redhat.com> Cc: Chris Metcalf <cmetc...@mellanox.com> --- arch/t

[PATCH v2 05/11] x86/tracing: fix compat syscall handling

bit from syscall numbers. Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> Cc: Steven Rostedt <rost...@goodmis.org> Cc: Ingo Molnar <mi...@redhat.com> Cc: Thomas Gleixner <t...@linutronix.de> Cc: "H. Peter Anvin" <h...@zytor.com> Cc: x...@kerne

[RFC PATCH 0/3] syscall/tracing: compat syscall support

here ... hence this change is sent as an RFC so that I can get valuable feedback on the proposed solution. Finally the last patch adds the missing compat syscall metadata. Marcin Nowakowski (3): tracing/syscalls: remove syscall_nr from syscall metadata tracing/syscalls: add handling for compat

[RFC PATCH 3/3] tracing/syscalls: add compat syscall metadata

Now that compat syscalls are properly distinguished from native calls, we can add metadata for compat syscalls as well. All the macros used to generate the metadata are the same as for standard syscalls, but with a compat_ prefix to distinguish them easily. Signed-off-by: Marcin Nowakowski

[RFC PATCH 2/3] tracing/syscalls: add handling for compat tasks

is reviewed. Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> --- arch/mips/kernel/ftrace.c | 4 +- arch/x86/include/asm/ftrace.h | 10 +--- arch/x86/kernel/ftrace.c | 14 ++ include/linux/ftrace.h| 2 +- kernel/trace/trace.h | 11 +++-

[RFC PATCH 1/3] tracing/syscalls: remove syscall_nr from syscall metadata

change in how syscall tables and numbers are defined for each arch. Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> --- include/linux/syscalls.h | 1 - include/trace/syscall.h | 2 - kernel/trace/trace_syscalls.c | 150 ---

[PATCH 2/2] MIPS: set NR_syscall_tables appropriately

Depending on the kernel configuration, up to 3 syscall tables can be used in parallel - so set the number properly to ensure syscall tracing is set up properly. Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> --- arch/mips/include/asm/unistd.h | 4 1 file chan

[PATCH 1/2] tracing/syscalls: allow multiple syscall numbers per syscall

will be of size 1 and is not going to add any overhead. If an arch requires multiple syscall_nr to be supported, it needs to define its own NR_syscall_tables to override the default behaviour. Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> --- include/linux/syscalls.h | 2 +- i

Re: [PATCH 2/2] MIPS: set NR_syscall_tables appropriately

On 27.09.2016 14:04, Ralf Baechle wrote: On Mon, Aug 29, 2016 at 11:30:07AM +0200, Marcin Nowakowski wrote: Depending on the kernel configuration, up to 3 syscall tables can be used in parallel - so set the number properly to ensure syscall tracing is set up properly. Signed-off-by: Marcin

[PATCH v4 00/12] syscall/tracing: compat syscall support

- tile: change in_compat_syscall to is_compat_task (suggested and signed-off by Chris Metcalf) Marcin Nowakowski (12): tracing/syscalls: remove syscall_nr from syscall metadata tracing/syscalls: add handling for compat tasks tracing/syscalls: drop arch_syscall_match_sym_name tracing

[PATCH v4 01/12] tracing/syscalls: remove syscall_nr from syscall metadata

syscall lookup together with the syscall metadata table traversal to register for appropriate events instead. This slightly increases the overhead during event (un)registration, but does not impact the trace events themselves, which still use syscall numbers directly. Signed-off-by: Marcin Nowakowski

[PATCH v4 12/12] parisc/tracing: fix compat syscall handling

Add missing arch code - arch_trace_is_compat_syscall and arch_syscall_addr Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> Cc: Steven Rostedt <rost...@goodmis.org> Cc: Ingo Molnar <mi...@redhat.com> Cc: "James E.J. Bottomley" <j...@parisc-linux.org&g

[PATCH v4 10/12] tile/tracing: fix compat syscall handling

Add missing arch code - arch_trace_is_compat_syscall and arch_syscall_addr Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> Cc: Steven Rostedt <rost...@goodmis.org> Cc: Ingo Molnar <mi...@redhat.com> Signed-off-by: Chris Metcalf <cmetc...@mellanox.com> --

[PATCH v4 02/12] tracing/syscalls: add handling for compat tasks

-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> Cc: Steven Rostedt <rost...@goodmis.org> Cc: Ingo Molnar <mi...@redhat.com> --- arch/mips/kernel/ftrace.c | 4 +- arch/powerpc/kernel/ftrace.c | 2 +- include/linux/ftrace.h| 2 +- kernel/trace/trac

[PATCH v4 03/12] tracing/syscalls: drop arch_syscall_match_sym_name

. Next commit will make syscall_match_sym_name implementation a bit larger, so clean it up now to avoid further patching arch code whenever the core method changes. Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> Signed-off-by: Michael Ellerman <m...@eller

[PATCH v4 07/12] s390/tracing: fix compat syscall handling

Add missing arch code - arch_trace_is_compat_syscall and arch_syscall_addr Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> Cc: Steven Rostedt <rost...@goodmis.org> Cc: Ingo Molnar <mi...@redhat.com> Cc: Martin Schwidefsky <schwidef...@de.ibm.com> Cc: Hei

[PATCH v4 04/12] tracing/syscalls: add compat syscall metadata

Now that compat syscalls are properly distinguished from native calls, we can add metadata for compat syscalls as well. All the macros used to generate the metadata are the same as for standard syscalls, but with a compat_ prefix to distinguish them easily. Signed-off-by: Marcin Nowakowski

[PATCH v4 05/12] tracing/syscalls: allow arch to override syscall_get_nr for ftrace

the regs provided. This will be used by x86 in a follow-up change. Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> Cc: Steven Rostedt <rost...@goodmis.org> Cc: Ingo Molnar <mi...@redhat.com> --- kernel/trace/trace_syscalls.c | 4 1 file changed, 4 inserti

[PATCH v4 06/12] x86/tracing: fix compat syscall handling

bit from syscall numbers. Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> Cc: Steven Rostedt <rost...@goodmis.org> Cc: Ingo Molnar <mi...@redhat.com> Cc: Thomas Gleixner <t...@linutronix.de> Cc: "H. Peter Anvin" <h...@zytor.com> Cc: x...@kerne

[PATCH v4 05/12] syscall/tracing: allow arch to override syscall_get_nr for ftrace

the regs provided. This will be used by x86 in a follow-up change. Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> Cc: Steven Rostedt <rost...@goodmis.org> Cc: Ingo Molnar <mi...@redhat.com> --- kernel/trace/trace_syscalls.c | 4 1 file changed, 4 inserti

[PATCH v4 09/12] powerpc/tracing: fix compat syscall handling

Adapt the code to make use of new syscall handling interface Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> Cc: Steven Rostedt <rost...@goodmis.org> Cc: Ingo Molnar <mi...@redhat.com> Cc: Benjamin Herrenschmidt <b...@kernel.crashing.org> Cc: Paul Mackerr

[PATCH v4 11/12] sparc/tracing: fix compat syscall handling

Add missing arch code - arch_trace_is_compat_syscall and arch_syscall_addr Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> Cc: Steven Rostedt <rost...@goodmis.org> Cc: Ingo Molnar <mi...@redhat.com> Cc: "David S. Miller" <da...@davemloft.net&

[PATCH v4 08/12] arm64/tracing: fix compat syscall handling

Add arch_syscall_addr for arm64 and define NR_compat_syscalls, as the number of compat syscalls for arm64 exceeds the number defined by NR_syscalls. Convert the existing uses of __NR_compat_syscalls to the newly introduced NR_compat_syscalls Signed-off-by: Marcin Nowakowski <marcin.nowa

[PATCH] elfcore.h: add trailing semi-colon in elf_core_copy_regs()

* macro invocations throughout this file. Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> --- include/linux/elfcore.h | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/include/linux/elfcore.h b/include/linux/elfcore.h index 698d51a..be7 100644 --- a/include

[PATCH] kbuild: protect compiled-in dtb from dead data elimination

DTBs are compiled into byte arrays that are placed inside .dtb.init.rodata section. As they are never referenced directly from the code, they get removed during dead data elimination and we end up with __dtb_start == __dtb_end. Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com>

[PATCH v3 06/11] s390/tracing: fix compat syscall handling

Add missing arch code - arch_trace_is_compat_syscall and arch_syscall_addr Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> Cc: Steven Rostedt <rost...@goodmis.org> Cc: Ingo Molnar <mi...@redhat.com> Cc: Martin Schwidefsky <schwidef...@de.ibm.com> Cc: Hei

[PATCH v3 00/11] syscall/tracing: compat syscall support

methods to prevent incorrect syscall reporting for compat tasks - this may happen after patch 2 is applied and without x86/tracing patch. version 3: - rebase on top of linux-next-20161011 - tile: change in_compat_syscall to is_compat_task (suggested and signed-off by Chris Metcalf) Marcin

[PATCH v3 01/11] tracing/syscalls: remove syscall_nr from syscall metadata

syscall lookup together with the syscall metadata table traversal to register for appropriate events instead. This slightly increases the overhead during event (un)registration, but does not impact the trace events themselves, which still use syscall numbers directly. Signed-off-by: Marcin Nowakowski

[PATCH v3 05/11] x86/tracing: fix compat syscall handling

bit from syscall numbers. Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> Cc: Steven Rostedt <rost...@goodmis.org> Cc: Ingo Molnar <mi...@redhat.com> Cc: Thomas Gleixner <t...@linutronix.de> Cc: "H. Peter Anvin" <h...@zytor.com> Cc: x...@kerne

[PATCH v3 10/11] sparc/tracing: fix compat syscall handling

Add missing arch code - arch_trace_is_compat_syscall and arch_syscall_addr Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> Cc: Steven Rostedt <rost...@goodmis.org> Cc: Ingo Molnar <mi...@redhat.com> Cc: "David S. Miller" <da...@davemloft.net&

[PATCH v3 02/11] tracing/syscalls: add handling for compat tasks

-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> Cc: Steven Rostedt <rost...@goodmis.org> Cc: Ingo Molnar <mi...@redhat.com> --- arch/mips/kernel/ftrace.c | 4 +- arch/powerpc/kernel/ftrace.c | 2 +- include/linux/ftrace.h| 2 +- kernel/trace/trac

[PATCH v3 08/11] powerpc/tracing: fix compat syscall handling

Adapt the code to make use of new syscall handling interface Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> Cc: Steven Rostedt <rost...@goodmis.org> Cc: Ingo Molnar <mi...@redhat.com> Cc: Benjamin Herrenschmidt <b...@kernel.crashing.org> Cc: Paul Mackerr

[PATCH v3 04/11] syscall/tracing: allow arch to override syscall_get_nr for ftrace

the regs provided. This will be used by x86 in a follow-up change. Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> Cc: Steven Rostedt <rost...@goodmis.org> Cc: Ingo Molnar <mi...@redhat.com> --- kernel/trace/trace_syscalls.c | 4 1 file changed, 4 inserti

[PATCH v3 03/11] tracing/syscalls: add compat syscall metadata

Now that compat syscalls are properly distinguished from native calls, we can add metadata for compat syscalls as well. All the macros used to generate the metadata are the same as for standard syscalls, but with a compat_ prefix to distinguish them easily. Signed-off-by: Marcin Nowakowski

[PATCH v3 11/11] parisc/tracing: fix compat syscall handling

Add missing arch code - arch_trace_is_compat_syscall and arch_syscall_addr Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> Cc: Steven Rostedt <rost...@goodmis.org> Cc: Ingo Molnar <mi...@redhat.com> Cc: "James E.J. Bottomley" <j...@parisc-linux.org&g

[PATCH v3 07/11] arm64/tracing: fix compat syscall handling

Add arch_syscall_addr for arm64 and define NR_compat_syscalls, as the number of compat syscalls for arm64 exceeds the number defined by NR_syscalls. Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> Cc: Steven Rostedt <rost...@goodmis.org> Cc: Ingo Molnar <mi...

[PATCH v3 09/11] tile/tracing: fix compat syscall handling

Add missing arch code - arch_trace_is_compat_syscall and arch_syscall_addr Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> Cc: Steven Rostedt <rost...@goodmis.org> Cc: Ingo Molnar <mi...@redhat.com> Signed-off-by: Chris Metcalf <cmetc...@mellanox.com> --

Re: [PATCH v3 08/11] powerpc/tracing: fix compat syscall handling

On 12.10.2016 11:59, Michael Ellerman wrote: I went to test this and noticed the exit and enter events appear to be reversed in time? (your series on top of 24532f768121) thanks for testing the patch - I've found a bug that has sneaked in while cleaning up the patches before submission ...

Re: [PATCH v3 03/11] tracing/syscalls: add compat syscall metadata

On 12.10.2016 10:50, Michael Ellerman wrote: <...> It's annoying that we have to duplicate all that just to do a + 1. How about this as a precursor? > <...> Thanks for the suggestion - unless anyone sees a reason to keep the current solution I'll change it. Marcin

Re: [PATCH v3 05/11] x86/tracing: fix compat syscall handling

On 12.10.2016 15:53, Thomas Gleixner wrote: On Tue, 11 Oct 2016, Marcin Nowakowski wrote: -/* - * Because ia32 syscalls do not map to x86_64 syscall numbers - * this screws up the trace output when tracing a ia32 task. - * Instead of reporting bogus syscalls, just do not trace them

Re: [PATCH v3 07/11] arm64/tracing: fix compat syscall handling

Hi Will, On 11.10.2016 15:36, Will Deacon wrote: On Tue, Oct 11, 2016 at 12:42:52PM +0200, Marcin Nowakowski wrote: Add arch_syscall_addr for arm64 and define NR_compat_syscalls, as the number of compat syscalls for arm64 exceeds the number defined by NR_syscalls. Signed-off-by: Marcin

[PATCH 2/2] kprobes/trace: Fix kprobe selftest for newer gcc

e the test method being optimised away. Finally, add __init annotations to find_trace_probe_file() and kprobe_trace_selftest_target() as they are only called from within an __init method. Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> --- kernel/trace/tra

[PATCH 1/2] tracing/kprobes: add a helper method to return number of probe hits

The number of probe hits is stored in a percpu variable and therefore can't be read directly. Add a helper method trace_kprobe_nhit() that performs the required calculation. Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> --- kernel/trace/trace_kprobe.

Re: [PATCH 1/2] tracing/kprobes: add a helper method to return number of probe hits

On 09.12.2016 15:03, Steven Rostedt wrote: On Fri, 9 Dec 2016 09:00:52 -0500 Steven Rostedt <rost...@goodmis.org> wrote: On Fri, 9 Dec 2016 13:25:51 +0100 Marcin Nowakowski <marcin.nowakow...@imgtec.com> wrote: The number of probe hits is stored in a percpu variable and the

[PATCH v2 2/2] kprobes/trace: Fix kprobe selftest for newer gcc

e the test method being optimised away. Finally, add __init annotations to find_trace_probe_file() and kprobe_trace_selftest_target() as they are only called from within an __init method. Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> --- kernel/trace/tra

[PATCH v2 1/2] tracing/kprobes: add a helper method to return number of probe hits

-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> --- kernel/trace/trace_kprobe.c | 19 +-- 1 file changed, 13 insertions(+), 6 deletions(-) v2: improved commit message as suggested by Steven Rostedt diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c index e

[PATCH] uprobes: allow for a cache flush after ixol breakpoint creation

is copied, caches are not flushed at all and stale data may be found in icache. Replace a simple copy_to_page() with arch_uprobe_copy_ixol() to allow the arch to ensure all caches are updated accordingly. This change fixes uprobes on MIPS InterAptiv (tested on Creator Ci40). Signed-off-by: Marcin

[PATCH] drivers/of: fix missing pr_cont()s in of_print_phandle_args

Since the KERN_CONT changes, the current debug printks have a lot of empty lines making the log messages very hard to read. Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> --- drivers/of/base.c | 9 ++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/d

Re: [PATCH RESEND 0/2] kbuild: dead code elimination: ftrace fixes

Hi Nick, On 22.12.2016 10:08, Nicholas Piggin wrote: On Thu, 22 Dec 2016 09:51:45 +0100 Marcin Nowakowski <marcin.nowakow...@imgtec.com> wrote: Enabling dead code & data elimination currently breaks ftrace operation, as the __mcount_loc section is removed (as it is not reference

[PATCH RESEND 0/2] kbuild: dead code elimination: ftrace fixes

erly handle the section names as created by the use of -ffunction-sections. The following 2 patches fix that behaviour. They are based on next-20161208. Marcin Nowakowski (2): kbuild: keep __mcount_loc table through dead code elimination recordmcount: fix mcount recording with -ffunction-sect

[PATCH 1/2] kbuild: keep __mcount_loc table through dead code elimination

When CONFIG_LD_DEAD_CODE_DATA_ELIMINATION is enabled we must ensure __mcount_loc is preserved, as otherwise there are no valid entries for ftrace to work with. Fixes: 4b89b7f7aad5 ('kbuild: keep data tables through dead code elimination') Signed-off-by: Marcin Nowakowski <marcin.nowa

[PATCH 2/2] recordmcount: fix mcount recording with -ffunction-sections

zA-Z_]*", add a similar pattern matching to recordmcount script for section detection. To simplify the basic C implementation, replace the regex with a string match on the prefix and a single character match following the '.text.' prefix. Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgt

Re: [tip:perf/urgent] uprobes: Fix uprobes on MIPS, allow for a cache flush after ixol breakpoint creation

Hi Oleg, On 20.12.2016 14:08, Oleg Nesterov wrote: On 12/19, tip-bot for Marcin Nowakowski wrote: uprobes: Fix uprobes on MIPS, allow for a cache flush after ixol breakpoint creation Commit: 72e6ae285a1d ('ARM: 8043/1: uprobes need icache flush after xol write' ... has introduced

Re: [PATCH] mips: Fix using smp_processor_id() when preemptible

Hi Corey, This has already been fixed here: https://git.linux-mips.org/cgit/ralf/upstream-sfr.git/commit/?id=21da5332327b6d183bd93336ecf29c70bc609b7b https://git.linux-mips.org/cgit/ralf/upstream-sfr.git/commit/?id=735302665c353d6756e7fa2a2cf41b039299f732 Marcin On 09.08.2017 23:25,

Re: [PATCH 06/15] serial: 8250_ingenic: Parse earlycon options

Hi Paul, On 07.06.2017 22:04, Paul Cercueil wrote: In the devicetree, it is possible to specify the baudrate, parity, bits, flow of the early console, by passing a configuration string like this: aliases { serial0 = }; chosen { stdout-path = "serial0:57600n8"; }; This, for

[PATCH] sched/fair: fix typo in printk message

'schedstats' kernel parameter should be set to enable/disable, so correct the printk hint saying that it should be set to 'enable' rather than 'enabled' to enable scheduler tracepoints. Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> --- kernel/sched/fair.c | 2 +- 1 file c

[PATCH v2] irqchip/mips-gic: mark count and compare accessors notrace

be longer than the update timeout leading to update failure. Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> --- v2: move notrace attribute after return type --- drivers/irqchip/irq-mips-gic.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/i

[PATCH] kernel/extable.c: mark core_kernel_text notrace

10/0x1b8 [3.041915] [<804e589c>] ftrace_ops_no_ops+0x114/0x1bc [3.047923] [<8045478c>] core_kernel_text+0x10/0x1b8 [3.053682] [<804119b8>] prepare_ftrace_return+0x6c/0x114 [3.059938] [<80411b2c>] ftrace_graph_caller+0x20/0x44 (...) Mark the function notrace to avoid it

Re: [PATCH v2 15/17] MIPS: JZ4770: Workaround for corrupted DMA transfers

Hi Paul, Maarten, On 20.06.2017 17:18, Paul Cercueil wrote: From: Maarten ter Huurne We have seen MMC DMA transfers read corrupted data from SDRAM when a burst interval ends at physical address 0x1000. To avoid this problem, we remove the final page of low memory

Re: [PATCH] MIPS: perf: fix build failure

Hi Sudip, This patch fixes the build error, but leaves the I6500 handling incorrect. I had explained to Ralf how the build should be fixed a while ago so hopefully he will fix it up in his -next branch (dd71e57bacb5 should have been applied on top of f7a31b5e7874, but in Ralf's tree

[PATCH 0/3] kselftest build errors

This patch series fixes build errors observed when building net, memfd, gpio and intel_pstate tests Marcin Nowakowski (3): selftests/{net,memfd}: fix undefined references to external libraries selftests/gpio: fix build error selftests/intel_pstate: fix undefined reference when building

[PATCH 2/3] selftests/gpio: fix build error

from selftests build and this is left as a future task to resolve properly. Fixes: a8ba798bc8ec ('selftests: enable O and KBUILD_OUTPUT') Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> --- tools/testing/selftests/gpio/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 de

[PATCH 3/3] selftests/intel_pstate: fix undefined reference when building

Currently the build fails with: /tmp/ccmgtz8N.o: In function `main': aperf.c:(.text+0x278): undefined reference to `sqrt' collect2: error: ld returned 1 exit status Replace LDFLAGS with LDLIBS to ensure proper ordering of arguments in build rules. Signed-off-by: Marcin Nowakowski

[PATCH 1/3] selftests/{net,memfd}: fix undefined references to external libraries

('selftests: enable O and KBUILD_OUTPUT') Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> --- tools/testing/selftests/memfd/Makefile | 4 ++-- tools/testing/selftests/net/Makefile | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/tools/testing/sel

Re: [PATCH 00/21] MIPS memblock: Remove bootmem code and switch to NO_BOOTMEM

Hi Serge, On 22.05.2017 12:26, Serge Semin wrote: Regarding the patchset. I'm still pretty much eager to make it being part of kernel MIPS arch. But there was a problem I outlined in the patchset header message, which I can't fix by myself. Particulary It's connected with Loonson3 or SGI IP27

Re: [PATCH 00/21] MIPS memblock: Remove bootmem code and switch to NO_BOOTMEM

Hi Serge, On 19.12.2016 03:07, Serge Semin wrote: Most of the modern platforms supported by linux kernel have already been cleaned up of old bootmem allocator by moving to nobootmem interface wrapping up the memblock. This patchset is the first attempt to do the similar improvement for MIPS for

Re: [PATCH] irqchip/mips-gic: mark count and compare accessors notrace

Hi Marc, On 08.06.2017 15:26, Marc Zyngier wrote: On Thu, Jun 08 2017 at 3:06:23 pm BST, Marcin Nowakowski <marcin.nowakow...@imgtec.com> wrote: gic_read_count(), gic_write_compare() and gic_write_cpu_compare() are often used in a sequence to update the compare register with a count

[PATCH] irqchip/mips-gic: mark count and compare accessors notrace

be longer than the update timeout leading to update failure. Signed-off-by: Marcin Nowakowski <marcin.nowakow...@imgtec.com> --- drivers/irqchip/irq-mips-gic.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/irqchip/irq-mips-gic.c b/drivers/irqchip/irq-mips

Re: [PATCH for 4.9 11/59] MIPS: fix mem=X@Y commandline processing

Levin) <alexander.le...@verizon.com> wrote: From: Marcin Nowakowski <marcin.nowakow...@imgtec.com> [ Upstream commit 73fbc1eba7ffa3bf0ad12486232a8a1edb4e4411 ] When a memory offset is specified through the commandline, add the memory in range PHYS_OFFSET:Y as reserved memory area. Otherwise the

Re: Fwd: stable-rc/linux-4.4.y build: 182 builds: 60 failed, 122 passed, 60 errors, 60 warnings (v4.4.99-60-g803704b287d8)

Hi Arnd, Greg, On 19.11.2017 21:55, Arnd Bergmann wrote: [Adding the others to cc] -- Forwarded message -- From: Arnd Bergmann Date: Sun, Nov 19, 2017 at 9:53 PM Subject: Re: stable-rc/linux-4.4.y build: 182 builds: 60 failed, 122 passed, 60 errors, 60 warnings

Re: [PATCH v2 1/2] nvmem: add driver for JZ4780 efuse

Hi Mathieu, On 28.12.2017 22:29, Mathieu Malaterre wrote: --- /dev/null +++ b/drivers/nvmem/jz4780-efuse.c @@ -0,0 +1,305 @@ +/* + * JZ4780 EFUSE Memory Support driver + * + * Copyright (c) 2017 PrasannaKumar Muralidharan + * + * This program is free software; you

Re: [RFC] MIPS memblock: Remove bootmem code and switch to NO_BOOTMEM

Hi Serge, On 19.12.2017 21:14, Serge Semin wrote: Hello folks, Almost a year ago I sent a patchset to the Linux MIPS community. The main target of the patchset was to get rid from the old bootmem allocator usage at the MIPS architecture. Additionally I had a problem with CMA usage on my MIPS

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