* [PATCH] xtensa: enable ARCH_HAS_DEBUG_VM_PGTABLE
@ 2022-04-25 18:05 Max Filippov
2022-04-26 6:08 ` Anshuman Khandual
2022-04-29 4:21 ` Anshuman Khandual
0 siblings, 2 replies; 5+ messages in thread
From: Max Filippov @ 2022-04-25 18:05 UTC (permalink / raw)
To: linux-xtensa; +Cc: Chris Zankel, linux-kernel, Anshuman Khandual, Max Filippov
xtensa kernels successfully build and run with
CONFIG_DEBUG_VM_PGTABLE=y, enable arch support for it.
Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
---
Documentation/features/debug/debug-vm-pgtable/arch-support.txt | 2 +-
arch/xtensa/Kconfig | 1 +
2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/Documentation/features/debug/debug-vm-pgtable/arch-support.txt b/Documentation/features/debug/debug-vm-pgtable/arch-support.txt
index 83eafe1a7f68..ff21a83abe62 100644
--- a/Documentation/features/debug/debug-vm-pgtable/arch-support.txt
+++ b/Documentation/features/debug/debug-vm-pgtable/arch-support.txt
@@ -27,5 +27,5 @@
| sparc: | TODO |
| um: | TODO |
| x86: | ok |
- | xtensa: | TODO |
+ | xtensa: | ok |
-----------------------
diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
index 2ed897299f19..903b910ebc10 100644
--- a/arch/xtensa/Kconfig
+++ b/arch/xtensa/Kconfig
@@ -4,6 +4,7 @@ config XTENSA
select ARCH_32BIT_OFF_T
select ARCH_HAS_BINFMT_FLAT if !MMU
select ARCH_HAS_CURRENT_STACK_POINTER
+ select ARCH_HAS_DEBUG_VM_PGTABLE
select ARCH_HAS_DMA_PREP_COHERENT if MMU
select ARCH_HAS_SYNC_DMA_FOR_CPU if MMU
select ARCH_HAS_SYNC_DMA_FOR_DEVICE if MMU
--
2.30.2
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH] xtensa: enable ARCH_HAS_DEBUG_VM_PGTABLE
2022-04-25 18:05 [PATCH] xtensa: enable ARCH_HAS_DEBUG_VM_PGTABLE Max Filippov
@ 2022-04-26 6:08 ` Anshuman Khandual
2022-04-26 12:42 ` Max Filippov
2022-04-29 4:21 ` Anshuman Khandual
1 sibling, 1 reply; 5+ messages in thread
From: Anshuman Khandual @ 2022-04-26 6:08 UTC (permalink / raw)
To: Max Filippov, linux-xtensa; +Cc: Chris Zankel, linux-kernel
Hi Max,
Thanks for the patch. Just wondering if you ran with different config
options (which might impact test case selection) on/off during testing ?
- Anshuman
On 4/25/22 23:35, Max Filippov wrote:
> xtensa kernels successfully build and run with
> CONFIG_DEBUG_VM_PGTABLE=y, enable arch support for it.
>
> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
> ---
> Documentation/features/debug/debug-vm-pgtable/arch-support.txt | 2 +-
> arch/xtensa/Kconfig | 1 +
> 2 files changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/Documentation/features/debug/debug-vm-pgtable/arch-support.txt b/Documentation/features/debug/debug-vm-pgtable/arch-support.txt
> index 83eafe1a7f68..ff21a83abe62 100644
> --- a/Documentation/features/debug/debug-vm-pgtable/arch-support.txt
> +++ b/Documentation/features/debug/debug-vm-pgtable/arch-support.txt
> @@ -27,5 +27,5 @@
> | sparc: | TODO |
> | um: | TODO |
> | x86: | ok |
> - | xtensa: | TODO |
> + | xtensa: | ok |
> -----------------------
> diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
> index 2ed897299f19..903b910ebc10 100644
> --- a/arch/xtensa/Kconfig
> +++ b/arch/xtensa/Kconfig
> @@ -4,6 +4,7 @@ config XTENSA
> select ARCH_32BIT_OFF_T
> select ARCH_HAS_BINFMT_FLAT if !MMU
> select ARCH_HAS_CURRENT_STACK_POINTER
> + select ARCH_HAS_DEBUG_VM_PGTABLE
> select ARCH_HAS_DMA_PREP_COHERENT if MMU
> select ARCH_HAS_SYNC_DMA_FOR_CPU if MMU
> select ARCH_HAS_SYNC_DMA_FOR_DEVICE if MMU
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH] xtensa: enable ARCH_HAS_DEBUG_VM_PGTABLE
2022-04-26 6:08 ` Anshuman Khandual
@ 2022-04-26 12:42 ` Max Filippov
2022-04-29 3:33 ` Anshuman Khandual
0 siblings, 1 reply; 5+ messages in thread
From: Max Filippov @ 2022-04-26 12:42 UTC (permalink / raw)
To: Anshuman Khandual
Cc: open list:TENSILICA XTENSA PORT (xtensa), Chris Zankel, LKML
Anshuman,
On Mon, Apr 25, 2022 at 11:07 PM Anshuman Khandual
<anshuman.khandual@arm.com> wrote:
> Thanks for the patch. Just wondering if you ran with different config
> options (which might impact test case selection) on/off during testing ?
I went through the code in the mm/debug_vm_pgtable.c and saw that most
variations are related to the huge page support which xtensa doesn't have.
I've tested it with and without CMA.
I haven't found anything else interesting that I could tweak -- have I missed
anything?
--
Thanks.
-- Max
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH] xtensa: enable ARCH_HAS_DEBUG_VM_PGTABLE
2022-04-26 12:42 ` Max Filippov
@ 2022-04-29 3:33 ` Anshuman Khandual
0 siblings, 0 replies; 5+ messages in thread
From: Anshuman Khandual @ 2022-04-29 3:33 UTC (permalink / raw)
To: Max Filippov; +Cc: open list:TENSILICA XTENSA PORT (xtensa), Chris Zankel, LKML
On 4/26/22 18:12, Max Filippov wrote:
> Anshuman,
>
> On Mon, Apr 25, 2022 at 11:07 PM Anshuman Khandual
> <anshuman.khandual@arm.com> wrote:
>> Thanks for the patch. Just wondering if you ran with different config
>> options (which might impact test case selection) on/off during testing ?
>
> I went through the code in the mm/debug_vm_pgtable.c and saw that most
> variations are related to the huge page support which xtensa doesn't have.
> I've tested it with and without CMA.
> I haven't found anything else interesting that I could tweak -- have I missed
> anything?
I dont think so, but thanks for confirming.
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH] xtensa: enable ARCH_HAS_DEBUG_VM_PGTABLE
2022-04-25 18:05 [PATCH] xtensa: enable ARCH_HAS_DEBUG_VM_PGTABLE Max Filippov
2022-04-26 6:08 ` Anshuman Khandual
@ 2022-04-29 4:21 ` Anshuman Khandual
1 sibling, 0 replies; 5+ messages in thread
From: Anshuman Khandual @ 2022-04-29 4:21 UTC (permalink / raw)
To: Max Filippov, linux-xtensa; +Cc: Chris Zankel, linux-kernel
On 4/25/22 23:35, Max Filippov wrote:
> xtensa kernels successfully build and run with
> CONFIG_DEBUG_VM_PGTABLE=y, enable arch support for it.
>
> Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
> ---
> Documentation/features/debug/debug-vm-pgtable/arch-support.txt | 2 +-
> arch/xtensa/Kconfig | 1 +
> 2 files changed, 2 insertions(+), 1 deletion(-)
>
> diff --git a/Documentation/features/debug/debug-vm-pgtable/arch-support.txt b/Documentation/features/debug/debug-vm-pgtable/arch-support.txt
> index 83eafe1a7f68..ff21a83abe62 100644
> --- a/Documentation/features/debug/debug-vm-pgtable/arch-support.txt
> +++ b/Documentation/features/debug/debug-vm-pgtable/arch-support.txt
> @@ -27,5 +27,5 @@
> | sparc: | TODO |
> | um: | TODO |
> | x86: | ok |
> - | xtensa: | TODO |
> + | xtensa: | ok |
> -----------------------
> diff --git a/arch/xtensa/Kconfig b/arch/xtensa/Kconfig
> index 2ed897299f19..903b910ebc10 100644
> --- a/arch/xtensa/Kconfig
> +++ b/arch/xtensa/Kconfig
> @@ -4,6 +4,7 @@ config XTENSA
> select ARCH_32BIT_OFF_T
> select ARCH_HAS_BINFMT_FLAT if !MMU
> select ARCH_HAS_CURRENT_STACK_POINTER
> + select ARCH_HAS_DEBUG_VM_PGTABLE
> select ARCH_HAS_DMA_PREP_COHERENT if MMU
> select ARCH_HAS_SYNC_DMA_FOR_CPU if MMU
> select ARCH_HAS_SYNC_DMA_FOR_DEVICE if MMU
^ permalink raw reply [flat|nested] 5+ messages in thread
end of thread, other threads:[~2022-04-29 4:20 UTC | newest]
Thread overview: 5+ messages (download: mbox.gz / follow: Atom feed)
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2022-04-25 18:05 [PATCH] xtensa: enable ARCH_HAS_DEBUG_VM_PGTABLE Max Filippov
2022-04-26 6:08 ` Anshuman Khandual
2022-04-26 12:42 ` Max Filippov
2022-04-29 3:33 ` Anshuman Khandual
2022-04-29 4:21 ` Anshuman Khandual
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