Le 28/09/2020 à 01:44, Jarkko Sakkinen a écrit :
On Fri, Sep 25, 2020 at 09:00:18AM -0300, Jason Gunthorpe wrote:
On Fri, Sep 25, 2020 at 01:29:20PM +0300, Jarkko Sakkinen wrote:
On Fri, Sep 25, 2020 at 09:00:56AM +0200, Ard Biesheuvel wrote:
On Fri, 25 Sep 2020 at 07:56, Jarkko Sakkinen
On 21/9/20 11:10 pm, Qinglang Miao wrote:
Simplify the return expression.
Signed-off-by: Qinglang Miao
Looks good
Acked-by: Andrew Donnellan
--
Andrew Donnellan OzLabs, ADL Canberra
a...@linux.ibm.com IBM Australia Limited
On Fri, Sep 25, 2020 at 09:00:18AM -0300, Jason Gunthorpe wrote:
> On Fri, Sep 25, 2020 at 01:29:20PM +0300, Jarkko Sakkinen wrote:
> > On Fri, Sep 25, 2020 at 09:00:56AM +0200, Ard Biesheuvel wrote:
> > > On Fri, 25 Sep 2020 at 07:56, Jarkko Sakkinen
> > > wrote:
> > > >
> > > > On Tue, Sep 22,
On Sat, Sep 26, 2020 at 5:43 AM Bjorn Helgaas wrote:
>
> On Thu, Sep 24, 2020 at 04:41:39PM +1000, Oliver O'Halloran wrote:
> > On Thu, Sep 24, 2020 at 3:15 PM Mamatha Inamdar
> > wrote:
> > >
> > > This patch adds a brief MODULE_DESCRIPTION to rpadlpar_io kernel modules
> > > (descriptions
On Tue, Sep 22, 2020 at 9:14 PM Rob Herring wrote:
>
> On Sat, Sep 19, 2020 at 2:23 PM Christian Lamparter
> wrote:
> >
> > On 2020-09-15 03:05, Rob Herring wrote:
> > > On Sun, Sep 06, 2020 at 12:06:12AM +0200, Christian Lamparter wrote:
> > >> This patch adds an DTSI-File that can be used by
On Wed, Sep 23, 2020 at 04:08:40PM +0200, nico.vi...@gmail.com wrote:
> From: Nicolas VINCENT
>
> the i2c_ram structure is missing the sdmatmp field mentionned in
> datasheet for MPC8272 at paragraph 36.5. With this field missing, the
> hardware would write past the allocated memory done through
Rename the guard define to _ASM_POWERPC_VDSO_H
And remove useless #ifdef __KERNEL__
Signed-off-by: Christophe Leroy
---
arch/powerpc/include/asm/vdso.h | 10 +++---
1 file changed, 3 insertions(+), 7 deletions(-)
diff --git a/arch/powerpc/include/asm/vdso.h
VDSO32_LBASE and VDSO64_LBASE are 0. Remove them to simplify code.
Signed-off-by: Christophe Leroy
---
arch/powerpc/include/asm/vdso.h | 4
arch/powerpc/kernel/vdso32/vdso32.lds.S | 2 +-
arch/powerpc/kernel/vdso64/vdso64.lds.S | 2 +-
3 files changed, 2 insertions(+), 6
DBG() is not used anymore. Remove it.
Signed-off-by: Christophe Leroy
---
arch/powerpc/kernel/vdso.c | 8
1 file changed, 8 deletions(-)
diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c
index e5a9b60274ba..4e3858bb2b24 100644
--- a/arch/powerpc/kernel/vdso.c
+++
There is no way to get out of vdso_init() prematuraly anymore.
Remove vdso_ready as it will always be 1.
Signed-off-by: Christophe Leroy
---
arch/powerpc/kernel/vdso.c | 6 --
1 file changed, 6 deletions(-)
diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c
index
vdso_fixup_features() cannot fail anymore and that's
the only function called by vdso_setup().
vdso_setup() has become trivial and can be removed.
Signed-off-by: Christophe Leroy
---
arch/powerpc/kernel/vdso.c | 21 ++---
1 file changed, 2 insertions(+), 19 deletions(-)
diff
The members related to the symbol section in struct lib32_elfinfo and
struct lib64_elfinfo are not used anymore, removed them.
Signed-off-by: Christophe Leroy
---
arch/powerpc/kernel/vdso.c | 90 --
1 file changed, 90 deletions(-)
diff --git
lib32_elfinfo and lib64_elfinfo are not used anymore, remove them.
Also remove vdso32_kbase and vdso64_kbase while removing the
last use.
Signed-off-by: Christophe Leroy
---
arch/powerpc/kernel/vdso.c | 29 ++---
1 file changed, 2 insertions(+), 27 deletions(-)
diff
The text member in struct lib32_elfinfo and struct lib64_elfinfo
is not used, remove it.
Signed-off-by: Christophe Leroy
---
arch/powerpc/kernel/vdso.c | 16
1 file changed, 16 deletions(-)
diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c
index
__kernel_datapage_offset is not used anymore, remove it.
Signed-off-by: Christophe Leroy
---
arch/powerpc/kernel/vdso.c | 39 -
arch/powerpc/kernel/vdso32/datapage.S | 3 --
arch/powerpc/kernel/vdso32/vdso32.lds.S | 5
vdso_patches[] is now empty, remove it and remove
all functions that depends on it.
Signed-off-by: Christophe Leroy
---
arch/powerpc/kernel/vdso.c | 161 -
1 file changed, 161 deletions(-)
diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c
Signal trampoline offsets are now generated at buildtime.
Runtime generated offsets are not used anymore, remove them.
Signed-off-by: Christophe Leroy
---
arch/powerpc/include/asm/vdso.h | 5 ---
arch/powerpc/kernel/vdso.c | 59 -
2 files changed, 64
__kernel_sync_dicache_p5() is an alternative to
__kernel_sync_dicache() when cpu has CPU_FTR_COHERENT_ICACHE
Remove this alternative function and merge
__kernel_sync_dicache_p5() into __kernel_sync_dicache() using
standard CPU feature fixup.
Signed-off-by: Christophe Leroy
---
Add builtin symbols to locate fixup section and use them
instead of locating sections through elf headers at runtime.
Signed-off-by: Christophe Leroy
---
arch/powerpc/kernel/vdso.c | 55 +++--
arch/powerpc/kernel/vdso32/vdso32.lds.S | 8
vdso32_pages and vdso64_pages are not used anymore.
Remove them.
Signed-off-by: Christophe Leroy
---
arch/powerpc/kernel/vdso.c | 16
1 file changed, 16 deletions(-)
diff --git a/arch/powerpc/kernel/vdso.c b/arch/powerpc/kernel/vdso.c
index 3a4fbcc0d1be..e732776bac0a 100644
This is copied from arm64.
Instead of using runtime generated signal trampoline offsets,
get offsets at buildtime.
If the said trampoline doesn't exist, build will fail. So no
need to check whether the trampoline exists or not in the VDSO.
Signed-off-by: Christophe Leroy
---
The \tmp param is not used anymore, remove it.
Signed-off-by: Christophe Leroy
---
arch/powerpc/include/asm/vdso/gettimeofday.h | 4 ++--
arch/powerpc/include/asm/vdso_datapage.h | 2 +-
arch/powerpc/kernel/vdso32/cacheflush.S | 2 +-
arch/powerpc/kernel/vdso32/datapage.S| 4
The VDSO datapage and the text pages are always located immediately
next to each other, so it can be hardcoded without an indirection
through __kernel_datapage_offset
Signed-off-by: Christophe Leroy
---
arch/powerpc/include/asm/vdso_datapage.h | 8 +---
Move the vdso datapage in front of the VDSO area,
before vdso test.
This will allow to remove the __kernel_datapage_offset symbol
and simplify __get_datapage() in following patches.
Signed-off-by: Christophe Leroy
---
arch/powerpc/include/asm/mmu_context.h | 2 +-
arch/powerpc/kernel/vdso.c
All other architectures but s390 use a void pointer named 'vdso'
to reference the VDSO mapping.
In a following patch, the VDSO data page will be put in front of
text, vdso_base will then not anymore point to VDSO text.
To avoid confusion between vdso_base and VDSO text, rename vdso_base
into
Provide vdso_remap() through _install_special_mapping() and
drop arch_remap().
This adds a test of the size and returns -EINVAL if the size
is not correct.
Signed-off-by: Christophe Leroy
---
arch/powerpc/include/asm/mm-arch-hooks.h | 25
arch/powerpc/kernel/vdso.c
Copied from commit 2fea7f6c98f5 ("arm64: vdso: move to
_install_special_mapping and remove arch_vma_name").
Use the new _install_special_mapping() API added by
commit a62c34bd2a8a ("x86, mm: Improve _install_special_mapping
and fix x86 vdso naming") which obsolete install_special_mapping().
And
In arch_setup_additional_pages(), instead of using number of VDSO
pages and recalculate VDSO size, directly use the VDSO size.
As vdso_ready is set, vdso_pages can't be 0 so just remove the test.
Signed-off-by: Christophe Leroy
---
arch/powerpc/kernel/vdso.c | 18 ++
1 file
No need of all those #ifdefs around the pagelist initialisation,
use IS_ENABLED(), GCC will kick out unused static variables.
Signed-off-by: Christophe Leroy
---
arch/powerpc/kernel/vdso.c | 31 ++-
1 file changed, 6 insertions(+), 25 deletions(-)
diff --git
The setup of VDSO pages is identical for 32 bits VDSO and
64 bits VDSO.
Refactor that setup.
And use _start which is synonym of vdsoXX_kbase.
Signed-off-by: Christophe Leroy
---
arch/powerpc/kernel/vdso.c | 39 +++---
1 file changed, 19 insertions(+), 20
To simplify arch_setup_additional_pages() exit, rename
it __arch_setup_additional_pages() and create a caller
arch_setup_additional_pages() which does the locking.
Signed-off-by: Christophe Leroy
---
arch/powerpc/kernel/vdso.c | 40 --
1 file changed, 21
No need of a NULL last element in pagelists, install_special_mapping()
knows how long the list is.
Remove that element.
Signed-off-by: Christophe Leroy
---
arch/powerpc/kernel/vdso.c | 6 ++
1 file changed, 2 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/kernel/vdso.c
Since commit 24b659a13866 ("powerpc: Use unstripped VDSO image for
more accurate profiling data"), only the unstripped VDSO image
has been used.
Partially revert commit 8150caad0226 ("[POWERPC] powerpc vDSO: install
unstripped copies on disk") to avoid building the stripped version.
And the
Today vdso_data structure has:
- syscall_map_32[] and syscall_map_64[] on PPC64
- syscall_map_32[] on PPC32
On PPC32, syscall_map_32[] is populated using sys_call_table[].
On PPC64, syscall_map_64[] is populated using sys_call_table[]
and syscal_map_32[] is populated using
This series modernises the setup of VDSO:
- Switch to using _install_special_mapping() which has replaced
install_special_mapping()
- Move datapage in front of text like most other architectures to simplify its
localisation
- Perform link time symbol resolution instead of runtime
This leads to
Instead of including extern references locally in
vdso_setup_syscall_map(), add the missing headers.
sys_ni_syscall() being a function, cast its address to
an unsigned long instead of declaring it as a fake
unsigned long object.
At the same time, remove a comment which paraphrases the
function
Partly copied from commit 16fb1a9bec61 ("arm64: vdso: clean up
vdso_pagelist initialization").
No need to get_page() the vdso text/data - these are part of the
kernel image.
Signed-off-by: Christophe Leroy
---
arch/powerpc/kernel/vdso.c | 6 ++
1 file changed, 2 insertions(+), 4
Le 21/09/2020 à 13:26, Will Deacon a écrit :
On Fri, Aug 28, 2020 at 12:14:28PM +1000, Michael Ellerman wrote:
Dmitry Safonov <0x7f454...@gmail.com> writes:
On Wed, 26 Aug 2020 at 15:39, Michael Ellerman wrote:
Christophe Leroy writes:
We added a test for vdso unmap recently because it
Le 24/09/2020 à 08:38, Oliver O'Halloran a écrit :
Signed-off-by: Oliver O'Halloran
Tested-by: Christophe Leroy
This series is a really good step forward to the elimination of
early support for ioremap(), thanks.
Tested with pmac32_defconfig on QEMU MAC99.
Before the series we have
Hi Rob
Not sure whether you have missed this mail with my query.
Regards,
Ran
On Wednesday, September 23, 2020 2:44 PM Ran Wang wrote:
>
> Hi Rob,
>
> On Wednesday, September 23, 2020 10:33 AM, Rob Herring wrote:
> >
> > On Wed, Sep 16, 2020 at 04:18:27PM +0800, Ran Wang wrote:
> > > From:
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