Move setup_initrd from mem_init into memblock_init, that LGTM.
Acked by: Guo Ren (csky)
On Fri, Mar 7, 2025 at 2:52 AM Mike Rapoport wrote:
>
> From: "Mike Rapoport (Microsoft)"
>
> Memory used by initrd should be reserved as soon as possible before
> there any memblo
RF_EVENTS
> select HAVE_PERF_REGS
> select HAVE_PERF_USER_STACK_DUMP
> diff --git a/arch/csky/include/asm/page.h b/arch/csky/include/asm/page.h
> index 4a0502e324a6..f70f37402d75 100644
> --- a/arch/csky/include/asm/page.h
> +++ b/arch/csky/include/asm/page.h
> @@
On Wed, Oct 11, 2023 at 8:53 PM Masahiro Yamada wrote:
>
> On Wed, Oct 11, 2023 at 11:24 AM Guo Ren wrote:
> >
> > On Mon, Oct 9, 2023 at 8:42 PM Masahiro Yamada wrote:
>
> > > --- a/arch/riscv/Makefile
> > > +++ b/arch/riscv/Makefile
> > > @@ -13
; -endef
> -
> -vdso_img_insttargets := $(vdso_img_sodbg:%.dbg=install_%)
> -
> -$(MODLIB)/vdso: FORCE
> - @mkdir -p $(MODLIB)/vdso
> -
> -$(vdso_img_insttargets): install_%: $(obj)/%.dbg $(MODLIB)/vdso
> - $(call cmd,vdso_install)
> -
> -PHONY += vdso_install $(vdso_img_insttargets)
> -vdso_install: $(vdso_img_insttargets)
> -
> clean-files := vdso32.so vdso32.so.dbg vdso64* vdso-image-*.c vdsox32.so*
> diff --git a/scripts/Makefile.vdsoinst b/scripts/Makefile.vdsoinst
> new file mode 100644
> index ..1022d9fdd976
> --- /dev/null
> +++ b/scripts/Makefile.vdsoinst
> @@ -0,0 +1,45 @@
> +# SPDX-License-Identifier: GPL-2.0-only
> +# ==
> +# Install unstripped copies of vDSO
> +# ==
> +
> +PHONY := __default
> +__default:
> + @:
> +
> +include $(srctree)/scripts/Kbuild.include
> +
> +install-dir := $(MODLIB)/vdso
> +
> +define gen_install_rules
> +
> +src := $$(firstword $$(subst :,$(space),$(1)))
> +dest := $(install-dir)/$$(or $$(word 2,$$(subst
> :,$(space),$(1))),$$(patsubst %.dbg,%,$$(notdir $(1
> +
> +__default: $$(dest)
> +$$(dest): $$(src) FORCE
> + $$(call cmd,install)
> +
> +# Some architectures create .build-id symlinks
> +ifneq ($(filter arm sparc x86, $(SRCARCH)),)
> +link := $(install-dir)/.build-id/$$(shell $(READELF) -n $$(src) | sed -n
> 's@^.*Build ID: \(..\)\(.*\)@\1/\2@p')
> +
> +__default: $$(link)
> +$$(link): $$(dest) FORCE
> + $$(call cmd,symlink)
> +endif
> +
> +endef
> +
> +$(foreach x, $(sort $(INSTALL_FILES)), $(eval $(call
> gen_install_rules,$(x
> +
> +quiet_cmd_install = INSTALL $@
> + cmd_install = mkdir -p $(dir $@); cp $< $@
> +
> +quiet_cmd_symlink = SYMLINK $@
> + cmd_symlink = mkdir -p $(dir $@); ln -sf --relative $< $@
> +
> +PHONY += FORCE
> +FORCE:
> +
> +.PHONY: $(PHONY)
> --
> 2.39.2
>
--
Best Regards
Guo Ren
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On Mon, Oct 9, 2023 at 8:42 PM Masahiro Yamada wrote:
>
> You cannot run this code because arch/csky/Makefile does not define the
> vdso_install target.
>
> It appears that this code was blindly copied from another architecture.
Yes, I do that. Thx for pointing it out.
Ac
Acked-by: Guo Ren
On Thu, Jun 1, 2023 at 5:34 AM Vishal Moola (Oracle)
wrote:
>
> Part of the conversions to replace pgtable constructor/destructors with
> ptdesc equivalents.
>
> Signed-off-by: Vishal Moola (Oracle)
> ---
> arch/csky/include/asm/pgalloc.h | 4 ++--
>
> #define virt_addr_valid(kaddr) ((void *)(kaddr) >= (void *)PAGE_OFFSET && \
> (void *)(kaddr) < high_memory)
> -#define pfn_valid(pfn) ((pfn) >= ARCH_PFN_OFFSET && ((pfn) -
> ARCH_PFN_OFFSET) < max_mapnr)
For csky part:
_addr_valid(), which almost does what we need.
> + * not-valid. Walk the page table and check the PTE_VALID bit.
> *
> * Because this is only called on the kernel linear map, p?d_sect() implies
> * p?d_present(). When debug_pagealloc is enabled, sections mappings ar
Reviewed-by: Guo Ren
On Mon, Sep 19, 2022 at 6:17 PM Peter Zijlstra wrote:
>
> Doing RCU-idle outside the driver, only to then temporarily enable it
> again, at least twice, before going idle is daft.
>
> Signed-off-by: Peter Zijlstra (Intel)
> ---
> drivers/cpuidle/
id noinstr arch_cpu_idle(void)
> * tricks
> */
> cpu_do_idle();
> - raw_local_irq_enable();
> }
> --- a/arch/csky/kernel/process.c
> +++ b/arch/csky/kernel/process.c
> @@ -100,6 +100,5 @@ void arch_cpu_idle(void)
> #ifdef CONFIG_CPU_PM_STO
For csky part
Acked-by: Guo Ren
On Fri, Aug 19, 2022 at 9:39 AM Kefeng Wang wrote:
>
> Only x86 has own release_thread(), introduce a new weak
> release_thread() function to clean empty definitions in
> other ARCHs.
>
> Signed-off-by: Kefeng Wang
> ---
> arch/alpha
For csky part.
Acked-by: Guo Ren
On Fri, Jun 24, 2022 at 12:48 PM Anshuman Khandual
wrote:
>
> This enables ARCH_HAS_VM_GET_PAGE_PROT on the platform and exports standard
> vm_get_page_prot() implementation via DECLARE_VM_GET_PAGE_PROT, which looks
> up a private and static pr
For csky part.
Acked-by: Guo Ren
On Wed, May 25, 2022 at 7:45 AM Peter Xu wrote:
>
> I observed that for each of the shared file-backed page faults, we're very
> likely to retry one more time for the 1st write fault upon no page. It's
> because we'll need to rele
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