Static calls are global structures declared with DECLARE_STATIC_CALL()
and defined with DEFINE_STATIC_CALL().
All fonction prototypes are moved out of struct machdep_calls into
struct machdep_calls_ops. That new struct won't be instanciated, it
is only used as a support for carriing fonction
If a system call is made with a transaction active, the kernel
immediately aborts it and returns. scv system calls disable irqs even
earlier in their interrupt handler, and tabort_syscall does not fix this
up.
This can result in irq soft-mask state being messed up on the next
kernel entry, and
Instead of playing directly with ppc_md. structure fields,
use the newly defined helpers.
Signed-off-by: Christophe Leroy
---
arch/powerpc/include/asm/archrandom.h | 4 +-
arch/powerpc/include/asm/iommu.h | 3 +-
arch/powerpc/include/asm/machdep.h| 3 +-
Don't use ppc_md function comparison.
Signed-off-by: Christophe Leroy
---
arch/powerpc/platforms/85xx/corenet_generic.c | 2 +-
arch/powerpc/sysdev/mpic.c| 4 +---
2 files changed, 2 insertions(+), 4 deletions(-)
diff --git a/arch/powerpc/platforms/85xx/corenet_generic.c
Hi Kajol,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on linux-nvdimm/libnvdimm-for-next]
[also build test WARNING on powerpc/next linus/master v5.14 next-20210903]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting
The purpose of this series is to convert machine dependent
functions in structure ppc_md into static calls.
First part of the series remove some dust in and around machdep.h
Then some helpers are defined to abstract the access to ppc_md. structure.
Then all plateforms are converted to using
ppc_md.iommu_save() is not set anymore by any platform after
commit c40785ad305b ("powerpc/dart: Use a cachable DART").
So iommu_save() has become a nop and can be removed.
ppc_md.show_percpuinfo() is not set anymore by any platform after
commit 4350147a816b ("[PATCH] ppc64: SMU based macs
drivers/nvdimm/nd_perf.c:159:6: warning: symbol
'nvdimm_pmu_free_hotplug_memory' was not declared. Should it be static?
Reported-by: kernel test robot
Signed-off-by: kernel test robot
---
nd_perf.c |2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/nvdimm/nd_perf.c
Last user was removed by commit 7bbd827750e6 ("[PATCH] ppc64: very
basic desktop g5 sound support").
Signed-off-by: Christophe Leroy
---
arch/powerpc/include/asm/machdep.h | 5 -
1 file changed, 5 deletions(-)
diff --git a/arch/powerpc/include/asm/machdep.h
sys_ctrler_t definitions are tied to pmac. Move it in pmac.h
Signed-off-by: Christophe Leroy
---
arch/powerpc/include/asm/machdep.h | 15 ---
arch/powerpc/platforms/powermac/pmac.h | 12
2 files changed, 12 insertions(+), 15 deletions(-)
diff --git
Since commit b1923caa6e64 ("powerpc: Merge 32-bit and 64-bit
setup_arch()") probe_machine has only been called from the
file in which it is defined. So it can be static.
Signed-off-by: Christophe Leroy
---
arch/powerpc/include/asm/machdep.h | 2 --
arch/powerpc/kernel/setup-common.c | 2 +-
2
As a preparation to converting ppc_md functions to static
calls, add helpers to play with ppc_md. functions.
Signed-off-by: Christophe Leroy
---
arch/powerpc/include/asm/machdep.h | 5 +
1 file changed, 5 insertions(+)
diff --git a/arch/powerpc/include/asm/machdep.h
Comment says "Delete this in 2.6.27".
Do so now.
Signed-off-by: Christophe Leroy
---
arch/powerpc/platforms/86xx/mpc86xx_hpcn.c | 6 --
1 file changed, 6 deletions(-)
diff --git a/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
b/arch/powerpc/platforms/86xx/mpc86xx_hpcn.c
index
Hi Michael,
On Fri, 03 Sep 2021 14:36:57 +0100,
Michael Ellerman wrote:
>
> Hi Linus,
>
> Please pull powerpc updates for 5.15.
>
> A bit of a small batch this time.
>
> There was one conflict against my own fixes branch, and the resolution was a
> little bit
> messy, so I just did a merge
The pull request you sent on Fri, 03 Sep 2021 23:36:57 +1000:
> https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git
> tags/powerpc-5.15-1
has been merged into torvalds/linux.git:
https://git.kernel.org/torvalds/c/7cca308cfdc0725363ac5943dca9dcd49cc1d2d5
Thank you!
--
On Wed, 1 Sep 2021 21:25:22 +1000, Michael Ellerman wrote:
> In commit 1e688dd2a3d6 ("powerpc/bug: Provide better flexibility to
> WARN_ON/__WARN_FLAGS() with asm goto") we changed WARN_ON(). Previously
> it would take the warning condition, x, and double negate it before
> converting the result
On Tue, 31 Aug 2021 23:51:51 +1000, Michael Ellerman wrote:
> Since the conversion to generic ptdump we see crashes on 64-bit:
>
> BUG: Unable to handle kernel data access on read at 0xc0eeff7f
> Faulting instruction address: 0xc045e5fc
> Oops: Kernel access of bad area,
On Fri, 27 Aug 2021 14:07:06 +1000, Alexey Kardashevskiy wrote:
> Since e1a1ef84cd07, pages for TCE tables for KVM guests are allocated
> only when needed. This allows skipping any update when clearing TCEs.
> This works mostly fine as TCE updates are handled when MMU is enabled.
> The realmode
tree/branch: https://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux.git
next
branch HEAD: a3314262eede9c909a0c797f16f25f941d12c78d Merge branch 'fixes'
into next
elapsed time: 721m
configs tested: 155
configs skipped: 4
The following configs have been built successfully.
More configs
Do not silentely ignore a failure of create_branch() in
patch_branch(). Return -ERANGE.
Signed-off-by: Christophe Leroy
---
arch/powerpc/lib/code-patching.c | 4 +++-
1 file changed, 3 insertions(+), 1 deletion(-)
diff --git a/arch/powerpc/lib/code-patching.c b/arch/powerpc/lib/code-patching.c
pmac_md doesn't exist anymore, remove stall declaration.
Fixes: e8222502ee61 ("[PATCH] powerpc: Kill _machine and hard-coded platform
numbers")
Signed-off-by: Christophe Leroy
---
arch/powerpc/platforms/powermac/setup.c | 2 --
1 file changed, 2 deletions(-)
diff --git
On Fri, Sep 03, 2021 at 03:18:17PM +0800, Weizhao Ouyang wrote:
> Most ARCHs use empty ftrace_dyn_arch_init(), introduce a weak common
> ftrace_dyn_arch_init() to cleanup them.
>
> Signed-off-by: Weizhao Ouyang
> ---
> arch/arm/kernel/ftrace.c | 5 -
> arch/arm64/kernel/ftrace.c
Le 02/09/2021 à 20:38, Eric W. Biederman a écrit :
Christophe Leroy writes:
Use unsafe_copy_siginfo_to_user() in order to do the copy
within the user access block.
On an mpc 8321 (book3s/32) the improvment is about 5% on a process
sending a signal to itself.
Nacked-by: "Eric W.
Le 02/09/2021 à 20:43, Eric W. Biederman a écrit :
Christophe Leroy writes:
In the same spirit as commit fb05121fd6a2 ("signal: Add
unsafe_get_compat_sigset()"), implement an 'unsafe' version of
copy_siginfo_to_user() in order to use it within user access blocks.
For that, also add an
Le 03/09/2021 à 11:03, Nanyong Sun a écrit :
Some drivers who call ioremap_prot without setting base flags like
ioremap_prot(addr, len, 0) may work well before
commit 56f3c1413f5c ("powerpc/mm: properly set PAGE_KERNEL flags in
ioremap()"), but now they will get a virtual address
commit 6d7f58b04d82 ("[PATCH] powerpc: Some minor cleanups to setup_32.c")
removed of_show_percpuinfo but didn't remove the prototype.
Remove it.
Fixes: 6d7f58b04d82 ("[PATCH] powerpc: Some minor cleanups to setup_32.c")
Signed-off-by: Daniel Axtens
---
arch/powerpc/platforms/powermac/pmac.h |
On 3/9/21 4:32 pm, Daniel Axtens wrote:
commit 6d7f58b04d82 ("[PATCH] powerpc: Some minor cleanups to setup_32.c")
removed of_show_percpuinfo but didn't remove the prototype.
Remove it.
Fixes: 6d7f58b04d82 ("[PATCH] powerpc: Some minor cleanups to setup_32.c")
Signed-off-by: Daniel Axtens
I
Hi Christophe,
> ppc_md.iommu_save() is not set anymore by any platform after
> commit c40785ad305b ("powerpc/dart: Use a cachable DART").
> So iommu_save() has become a nop and can be removed.
I wonder if it makes sense to have an iommu_restore() without an
iommu_save. Only dart_iommu.c defines
Christophe Leroy writes:
> Commit d75d68cfef49 ("powerpc: Clean up obsolete code relating to
> decrementer and timebase") made generic_suspend_enable_irqs() and
> generic_suspend_disable_irqs() static.
>
> Fold them into their only caller.
This does what it says, and simplifies the code.
Some drivers who call ioremap_prot without setting base flags like
ioremap_prot(addr, len, 0) may work well before
commit 56f3c1413f5c ("powerpc/mm: properly set PAGE_KERNEL flags in
ioremap()"), but now they will get a virtual address "successfully"
from ioremap_prot and badly fault on memory
Most ARCHs use empty ftrace_dyn_arch_init(), introduce a weak common
ftrace_dyn_arch_init() to cleanup them.
Signed-off-by: Weizhao Ouyang
---
arch/arm/kernel/ftrace.c | 5 -
arch/arm64/kernel/ftrace.c| 5 -
arch/csky/kernel/ftrace.c | 5 -
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