On 4/6/22 14:58, Gabriel Paubert wrote:
On Wed, Apr 06, 2022 at 02:01:48PM +1000, Alexey Kardashevskiy wrote:
So far the RELACOUNT tag from the ELF header was containing the exact
number of R_PPC_RELATIVE/R_PPC64_RELATIVE relocations. However the LLVM's
recent change [1] make it equal-or-less
On 6/4/22 16:52, Christophe Leroy wrote:
Thanks. Can you take the patch through your tree ?
We don't have a tree of our own, we rely on mpe to take it through powerpc.
--
Andrew Donnellan OzLabs, ADL Canberra
a...@linux.ibm.com IBM Australia Limited
Le 06/04/2022 à 08:43, Andrew Donnellan a écrit :
> On 2/4/22 20:52, Christophe Leroy wrote:
>> powerpc's asm/prom.h brings some headers that it doesn't
>> need itself.
>>
>> In order to clean it up, first add missing headers in
>> users of asm/prom.h
>>
>> Signed-off-by: Christophe Leroy
>
> U
On 2/4/22 20:52, Christophe Leroy wrote:
powerpc's asm/prom.h brings some headers that it doesn't
need itself.
In order to clean it up, first add missing headers in
users of asm/prom.h
Signed-off-by: Christophe Leroy
Untested because I don't have your actual patch to change prom.h, but
noth
Use a kmalloced data structure to store interrupt controller internal
data instead of static global variables.
Signed-off-by: Christophe Leroy
---
arch/powerpc/platforms/8xx/cpm1-ic.c | 48 +---
1 file changed, 30 insertions(+), 18 deletions(-)
diff --git a/arch/powerpc/
In the same logic as commit be7ecbd240b2 ("soc: fsl: qe: convert QE
interrupt controller to platform_device"), convert CPM1 interrupt
controller to platform_device.
Signed-off-by: Christophe Leroy
---
arch/powerpc/platforms/8xx/cpm1-ic.c| 90 ++---
arch/powerpc/platforms/
mpc8xx_pics_init() is now only a trampoline to
mpc8xx_pic_init().
Remove mpc8xx_pics_init() and use mpc8xx_pic_init()
directly.
Signed-off-by: Christophe Leroy
---
v2: Add missing header (pic.h) and change mpc8xx_pic_init() to void.
---
arch/powerpc/platforms/8xx/adder875.c| 3 ++-
arc
Add CPM error interrupt as a standalone platform driver,
to simplify the init of CPM interrupt handler.
Signed-off-by: Christophe Leroy
---
arch/powerpc/platforms/8xx/cpm1-ic.c | 73 +---
1 file changed, 44 insertions(+), 29 deletions(-)
diff --git a/arch/powerpc/platfor
CPM interrupt controller is quite standalone. Move it into a
dedicated file. It will help for next step which will change
it to a platform driver.
This is pure code move, checkpatch report is ignored at this point,
except one parenthesis alignment which would remain at the end of
the series. All o
On Wed, Apr 06, 2022 at 02:01:48PM +1000, Alexey Kardashevskiy wrote:
> So far the RELACOUNT tag from the ELF header was containing the exact
> number of R_PPC_RELATIVE/R_PPC64_RELATIVE relocations. However the LLVM's
> recent change [1] make it equal-or-less than the actual number which
> makes it
At the moment the IOMMU page size in a pseries VM is 16MB (the biggest
allowed by LoPAPR), this page size is used for an emulated TCE table.
If there is a passed though PCI device, that there are hardware IOMMU
tables with equal or smaller IOMMU page sizes so one emulated IOMMU pages
is backed by p
So far the RELACOUNT tag from the ELF header was containing the exact
number of R_PPC_RELATIVE/R_PPC64_RELATIVE relocations. However the LLVM's
recent change [1] make it equal-or-less than the actual number which
makes it useless.
This replaces RELACOUNT in zImage loader with a pair of RELASZ and
On Tue, 2022-04-05 at 02:49 +, Joel Stanley wrote:
> I booted both patches in this series on a power10 powernv machine,
> applied on top of v5.18-rc1:
>
> $ dmesg |grep -i flush
> [ 0.00] rfi-flush: fallback displacement flush available
> [ 0.00] rfi-flush: patched 12 locations
Hi PPC/RCU,
While merging v5.18-rc1 changes I noticed our CI PPC runs broke. I
reproduced the problem in v5.18-rc1 as well as next-20220405, under
both QEMU 4.2.1 and 6.1.0, with `-smp 2`; but I cannot reproduce it in
v5.17 from a few tries.
Sadly, the problem is not deterministic although it is
On 4/4/22 1:05 AM, Christoph Hellwig wrote:
Hi all,
this series tries to clean up the swiotlb initialization, including
that of swiotlb-xen. To get there is also removes the x86 iommu table
infrastructure that massively obsfucates the initialization path.
Git tree:
git://git.infradead.
On Tue, Apr 05, 2022 at 05:57:31PM +0200, Ahmad Fatoum wrote:
> Refactoring in commit a50b7926d015 ("ASoC: fsl_sai: implement 1:1
> bclk:mclk ratio support") led to the bypass never happening
> as (ratio = 1) was caught in the existing if (ratio & 1) continue;
> check. The correct check sequence in
On Sat, Apr 02, 2022 at 12:11:56PM +0200, Christophe Leroy wrote:
> powerpc's asm/prom.h brings some headers that it doesn't
> need itself.
>
> In order to clean it up, first add missing headers in
> users of asm/prom.h
>
> Signed-off-by: Christophe Leroy
I tidied the subject line to match prev
Refactoring in commit a50b7926d015 ("ASoC: fsl_sai: implement 1:1
bclk:mclk ratio support") led to the bypass never happening
as (ratio = 1) was caught in the existing if (ratio & 1) continue;
check. The correct check sequence instead is:
- skip all ratios lower than one and higher than 512
- sk
On Thu, Mar 31, 2022 at 11:39:45PM +1100, Michael Ellerman wrote:
> Greg Kroah-Hartman writes:
> > There are currently 2 ways to create a set of sysfs files for a
> > kobj_type, through the default_attrs field, and the default_groups
> > field. Move the pseries vas sysfs code to use default_group
Use a kmalloced data structure to store interrupt controller internal
data instead of static global variables.
Signed-off-by: Christophe Leroy
---
arch/powerpc/platforms/8xx/cpm1-ic.c | 48 +---
1 file changed, 30 insertions(+), 18 deletions(-)
diff --git a/arch/powerpc/
In the same logic as commit be7ecbd240b2 ("soc: fsl: qe: convert QE
interrupt controller to platform_device"), convert CPM1 interrupt
controller to platform_device.
Signed-off-by: Christophe Leroy
---
arch/powerpc/platforms/8xx/cpm1-ic.c| 90 ++---
arch/powerpc/platforms/
CPM interrupt controller is quite standalone. Move it into a
dedicated file. It will help for next step which will change
it to a platform driver.
This is pure code move, checkpatch report is ignored at this point,
except one parenthesis alignment which would remain at the end of
the series. All o
Add CPM error interrupt as a standalone platform driver,
to simplify the init of CPM interrupt handler.
Signed-off-by: Christophe Leroy
---
arch/powerpc/platforms/8xx/cpm1-ic.c | 73 +---
1 file changed, 44 insertions(+), 29 deletions(-)
diff --git a/arch/powerpc/platfor
mpc8xx_pics_init() is now only a trampoline to
mpc8xx_pic_init().
Remove mpc8xx_pics_init() and use mpc8xx_pic_init()
directly.
Signed-off-by: Christophe Leroy
---
arch/powerpc/platforms/8xx/adder875.c| 2 +-
arch/powerpc/platforms/8xx/ep88xc.c | 2 +-
arch/powerpc/platforms/
From: Randy Dunlap
[ Upstream commit 53819a0d97aace1425bb042829e3446952a9e8a9 ]
__setup() handlers should return 1 to indicate that the boot option
has been handled or 0 to indicate that it was not handled.
Add a pr_warn() message if the option value is invalid and then
always return 1.
Link: l
From: Randy Dunlap
[ Upstream commit 53819a0d97aace1425bb042829e3446952a9e8a9 ]
__setup() handlers should return 1 to indicate that the boot option
has been handled or 0 to indicate that it was not handled.
Add a pr_warn() message if the option value is invalid and then
always return 1.
Link: l
From: Randy Dunlap
[ Upstream commit 53819a0d97aace1425bb042829e3446952a9e8a9 ]
__setup() handlers should return 1 to indicate that the boot option
has been handled or 0 to indicate that it was not handled.
Add a pr_warn() message if the option value is invalid and then
always return 1.
Link: l
From: Randy Dunlap
[ Upstream commit 53819a0d97aace1425bb042829e3446952a9e8a9 ]
__setup() handlers should return 1 to indicate that the boot option
has been handled or 0 to indicate that it was not handled.
Add a pr_warn() message if the option value is invalid and then
always return 1.
Link: l
On Tue, 5 Apr 2022 at 06:13, Michael Ellerman wrote:
>
> Joel Stanley writes:
> > On Mon, 4 Apr 2022 at 10:15, Russell Currey wrote:
> >>
> >> The device-tree properties no-need-l1d-flush-msr-pr-1-to-0 and
> >> no-need-l1d-flush-kernel-on-user-access are the equivalents of
> >> H_CPU_BEHAV_NO_L1
From: Guo Ren
Adds initial skeletal COMPAT Kbuild (Running 32bit U-mode on
64bit S-mode) support.
- Setup kconfig & dummy functions for compiling.
- Implement compat_start_thread by the way.
Signed-off-by: Guo Ren
Signed-off-by: Guo Ren
Reviewed-by: Arnd Bergmann
Tested-by: Heiko Stuebner
From: Guo Ren
Now, you can use native gdb on riscv64 for rv32 app debugging.
$ uname -a
Linux buildroot 5.16.0-rc4-00036-gbef6b82fdf23-dirty #53 SMP Mon Dec 20
23:06:53 CST 2021 riscv64 GNU/Linux
$ cat /proc/cpuinfo
processor : 0
hart: 0
isa : rv64imafdcsuh
mmu
From: Guo Ren
Implement compat_setup_rt_frame for sigcontext save & restore. The
main process is the same with signal, but the rv32 pt_regs' size
is different from rv64's, so we needs convert them.
Signed-off-by: Guo Ren
Signed-off-by: Guo Ren
Reviewed-by: Palmer Dabbelt
Tested-by: Heiko Stue
From: Guo Ren
Reconstruct __setup_additional_pages() by appending vdso info
pointer argument to meet compat_vdso_info requirement. And change
vm_special_mapping *dm, *cm initialization into static.
Signed-off-by: Guo Ren
Signed-off-by: Guo Ren
Reviewed-by: Palmer Dabbelt
Tested-by: Heiko Stue
From: Guo Ren
There is no vgettimeofday supported in rv32 that makes simple to
generate rv32 vdso code which only needs riscv64 compiler. Other
architectures need change compiler or -m (machine parameter) to
support vdso32 compiling. If rv32 support vgettimeofday (which
cause C compile) in future
From: Guo Ren
Detect hardware COMPAT (32bit U-mode) capability in rv64. If not
support COMPAT mode in hw, compat_elf_check_arch would return
false by compat_binfmt_elf.c
Add CLASS to enhance (compat_)elf_check_arch to distinguish
32BIT/64BIT elf.
Signed-off-by: Guo Ren
Signed-off-by: Guo Ren
From: Guo Ren
Implement necessary type and macro for compat elf. See the code
comment for detail.
Signed-off-by: Guo Ren
Signed-off-by: Guo Ren
Reviewed-by: Arnd Bergmann
Tested-by: Heiko Stuebner
---
arch/riscv/include/asm/elf.h | 41 +++-
1 file changed, 40
From: Guo Ren
If the current task is in COMPAT mode, set SR_UXL_32 in status for
returning userspace. We need CONFIG _COMPAT to prevent compiling
errors with rv32 defconfig.
Signed-off-by: Guo Ren
Signed-off-by: Guo Ren
Tested-by: Heiko Stuebner
Cc: Arnd Bergmann
Cc: Palmer Dabbelt
---
arc
From: Guo Ren
Implement the entry of compat_sys_call_table[] in asm. Ref to
riscv-privileged spec 4.1.1 Supervisor Status Register (sstatus):
BIT[32:33] = UXL[1:0]:
- 1:32
- 2:64
- 3:128
Signed-off-by: Guo Ren
Signed-off-by: Guo Ren
Reviewed-by: Palmer Dabbelt
Tested-by: Heiko Stuebner
From: Guo Ren
Implement compat sys_call_table and some system call functions:
truncate64, ftruncate64, fallocate, pread64, pwrite64,
sync_file_range, readahead, fadvise64_64 which need argument
translation.
Signed-off-by: Guo Ren
Signed-off-by: Guo Ren
Reviewed-by: Arnd Bergmann
Tested-by: He
From: Guo Ren
Make TASK_SIZE from const to dynamic detect TIF_32BIT flag
function. Refer to arm64 to implement DEFAULT_MAP_WINDOW_64 for
efi-stub.
Limit 32-bit compatible process in 0-2GB virtual address range
(which is enough for real scenarios), because it could avoid
address sign extend probl
From: Guo Ren
Implement riscv asm/compat.h for struct compat_xxx,
is_compat_task, compat_user_regset, regset convert.
The rv64 compat.h has inherited most of the structs
from the generic one.
Signed-off-by: Guo Ren
Signed-off-by: Guo Ren
Tested-by: Heiko Stuebner
Cc: Arnd Bergmann
Cc: Palme
From: Guo Ren
Let's follow the origin patch's spirit:
The only difference between rv32_defconfig and defconfig is that
rv32_defconfig has CONFIG_ARCH_RV32I=y.
This is helpful to compare rv64-compat-rv32 v.s. rv32-linux.
Fixes: 1b937e8faa87ccfb ("RISC-V: Add separate defconfig for 32bit system
From: Guo Ren
Make "uapi asm unistd.h" could be used for architectures' COMPAT
mode. The __SYSCALL_COMPAT is first used in riscv.
Signed-off-by: Guo Ren
Signed-off-by: Guo Ren
Reviewed-by: Arnd Bergmann
Reviewed-by: Christoph Hellwig
Tested-by: Heiko Stuebner
---
include/uapi/asm-generic/u
From: Guo Ren
There are 7 64bit architectures that support Linux COMPAT mode to
run 32bit applications. A lot of definitions are duplicate:
- COMPAT_USER_HZ
- COMPAT_RLIM_INFINITY
- COMPAT_OFF_T_MAX
- __compat_uid_t, __compat_uid_t
- compat_dev_t
- compat_ipc_pid_t
- struct compat_flock
-
From: Guo Ren
RISC-V doesn't neeed compat_stat, so using __ARCH_WANT_COMPAT_STAT
to exclude unnecessary SYSCALL functions.
Signed-off-by: Guo Ren
Signed-off-by: Guo Ren
Reviewed-by: Arnd Bergmann
Reviewed-by: Christoph Hellwig
Tested-by: Heiko Stuebner
Acked-by: Helge Deller # parisc
Cc:
From: Guo Ren
The existing per-arch definitions are pretty much historic cruft.
Move SYSVIPC_COMPAT into init/Kconfig.
Signed-off-by: Guo Ren
Signed-off-by: Guo Ren
Acked-by: Arnd Bergmann
Reviewed-by: Christoph Hellwig
Tested-by: Heiko Stuebner
Acked-by: Helge Deller # parisc
Cc: Palmer
From: Christoph Hellwig
Provide a single common definition for the compat_flock and
compat_flock64 structures using the same tricks as for the native
variants. Another extra define is added for the packing required on
x86.
Signed-off-by: Christoph Hellwig
Signed-off-by: Guo Ren
Reviewed-by: A
From: Christoph Hellwig
The F_GETLK64/F_SETLK64/F_SETLKW64 fcntl opcodes are only implemented
for the 32-bit syscall APIs, but are also needed for compat handling
on 64-bit kernels.
Consolidate them in unistd.h instead of definining the internal compat
definitions in compat.h, which is rather er
From: Christoph Hellwig
Don't bother to define the symbols empty, just don't use them.
That makes the intent a little more clear.
Remove the unused HAVE_ARCH_STRUCT_FLOCK64 define and merge the
32-bit mips struct flock into the generic one.
Add a new __ARCH_FLOCK_EXTRA_SYSID macro following the
From: Guo Ren
Currently, most 64-bit architectures (x86, parisc, powerpc, arm64,
s390, mips, sparc) have supported COMPAT mode. But they all have
history issues and can't use standard linux unistd.h. RISC-V would
be first standard __SYSCALL_COMPAT user of include/uapi/asm-generic
/unistd.h.
The
50 matches
Mail list logo
