[PATCH] docs/arm64: cpu-feature-registers: Rewrite bitfields that don't follow [e, s]

[PATCH] docs/arm64: cpu-feature-registers: Rewrite bitfields that don't follow [e, s]

[Julien Grall]

From: Julien Grall <julien.grall@arm.com>

Commit "docs/arm64: cpu-feature-registers: Documents missing visible
fields" added bitfiels following the convention [s, e]. However, the
documentation is following [s, e] and so does the Arm ARM.

Rewrite the bitfields to match the format [e, s].

Signed-off-by: Julien Grall <julien.grall@arm.com>

---

This is based on the branch for-next/elf-hwcap-docs from the tree
arm64/linux.git.
---
 Documentation/arm64/cpu-feature-registers.rst | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/Documentation/arm64/cpu-feature-registers.rst b/Documentation/arm64/cpu-feature-registers.rst
index ffcf4e2c71ef..7c40e4581bae 100644
--- a/Documentation/arm64/cpu-feature-registers.rst
+++ b/Documentation/arm64/cpu-feature-registers.rst
@@ -193,9 +193,9 @@ infrastructure:
      +------------------------------+---------+---------+
      | Name                         |  bits   | visible |
      +------------------------------+---------+---------+
-     | SB                           | [36-39] |    y    |
+     | SB                           | [39-36] |    y    |
      +------------------------------+---------+---------+
-     | FRINTTS                      | [32-35] |    y    |
+     | FRINTTS                      | [35-32] |    y    |
      +------------------------------+---------+---------+
      | GPI                          | [31-28] |    y    |
      +------------------------------+---------+---------+
-- 
2.17.1


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Re: [PATCH] docs/arm64: cpu-feature-registers: Rewrite bitfields that don't follow [e, s]

[Catalin Marinas]

On Fri, Nov 01, 2019 at 03:20:22PM +0000, Julien Grall wrote:
> From: Julien Grall <julien.grall@arm.com>
> 
> Commit "docs/arm64: cpu-feature-registers: Documents missing visible
> fields" added bitfiels following the convention [s, e]. However, the
> documentation is following [s, e] and so does the Arm ARM.
> 
> Rewrite the bitfields to match the format [e, s].
> 
> Signed-off-by: Julien Grall <julien.grall@arm.com>

Applied. Thanks.

-- 
Catalin

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Re: [PATCH] docs/arm64: cpu-feature-registers: Rewrite bitfields that don't follow [e, s]

[Will Deacon]

On Fri, Nov 01, 2019 at 03:20:22PM +0000, Julien Grall wrote:
> From: Julien Grall <julien.grall@arm.com>
> 
> Commit "docs/arm64: cpu-feature-registers: Documents missing visible
> fields" added bitfiels following the convention [s, e]. However, the

typo: bitfiels

> documentation is following [s, e] and so does the Arm ARM.

This should be [e, s], although I think you can spell it out as "end" and
"start" so people know what this is doing.

> 
> Rewrite the bitfields to match the format [e, s].
> 
> Signed-off-by: Julien Grall <julien.grall@arm.com>
> 
> ---
> 
> This is based on the branch for-next/elf-hwcap-docs from the tree
> arm64/linux.git.
> ---
>  Documentation/arm64/cpu-feature-registers.rst | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/Documentation/arm64/cpu-feature-registers.rst b/Documentation/arm64/cpu-feature-registers.rst
> index ffcf4e2c71ef..7c40e4581bae 100644
> --- a/Documentation/arm64/cpu-feature-registers.rst
> +++ b/Documentation/arm64/cpu-feature-registers.rst
> @@ -193,9 +193,9 @@ infrastructure:
>       +------------------------------+---------+---------+
>       | Name                         |  bits   | visible |
>       +------------------------------+---------+---------+
> -     | SB                           | [36-39] |    y    |
> +     | SB                           | [39-36] |    y    |
>       +------------------------------+---------+---------+
> -     | FRINTTS                      | [32-35] |    y    |
> +     | FRINTTS                      | [35-32] |    y    |
>       +------------------------------+---------+---------+
>       | GPI                          | [31-28] |    y    |
>       +------------------------------+---------+---------+

diff looks fine.

Will

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Re: [PATCH] docs/arm64: cpu-feature-registers: Rewrite bitfields that don't follow [e, s]

[Catalin Marinas]

On Fri, Nov 01, 2019 at 03:38:04PM +0000, Will Deacon wrote:
> On Fri, Nov 01, 2019 at 03:20:22PM +0000, Julien Grall wrote:
> > From: Julien Grall <julien.grall@arm.com>
> > 
> > Commit "docs/arm64: cpu-feature-registers: Documents missing visible
> > fields" added bitfiels following the convention [s, e]. However, the
> 
> typo: bitfiels
> 
> > documentation is following [s, e] and so does the Arm ARM.
> 
> This should be [e, s], although I think you can spell it out as "end" and
> "start" so people know what this is doing.

Thanks. I'll make the changes locally.

-- 
Catalin

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