linux-kernel - Re: [RFC 2/5] cxl: Rename CXL_DECODER

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Message-ID: <Zvv83Xg_jDilJgqx@PC2K9PVX.TheFacebook.com>
Date: Tue, 1 Oct 2024 09:45:01 -0400
From: Gregory Price <gourry@...rry.net>
To: Huang Ying <ying.huang@...el.com>
Cc: Dan Williams <dan.j.williams@...el.com>,
	Dave Jiang <dave.jiang@...el.com>, linux-cxl@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	Jonathan Cameron <Jonathan.Cameron@...wei.com>,
	Davidlohr Bueso <dave@...olabs.net>,
	Alison Schofield <alison.schofield@...el.com>,
	Vishal Verma <vishal.l.verma@...el.com>,
	Ira Weiny <ira.weiny@...el.com>,
	Alejandro Lucero <alucerop@....com>
Subject: Re: [RFC 2/5] cxl: Rename CXL_DECODER_HOSTONLYMEM/DEVMEM

On Wed, Sep 25, 2024 at 10:46:44AM +0800, Huang Ying wrote:
> Previously, CXL type3 devices (memory expanders) use hostonly
> coherence (HDM-H), while CXL type2 devices (accelerators) use dev
> coherence (HDM-D).  So the target device type of a cxl decoder is
> named as CXL_DECODER_HOSTONLYMEM for type3 devices and
> CXL_DECODER_DEVMEM for type2 devices.  However, this isn't true
> anymore.  CXL type3 devices can use dev coherence + back
> invalidation (HDM-DB) too.
> 
> To avoid confusing between the device type and coherence, in this
> patch, CXL_DECODER_HOSTONLYMEM/DEVMEM is renamed to
> CXL_DECODER_EXPANDER/ACCEL.
> 
> No functionality change is expected in this patch.
> 
> Signed-off-by: "Huang, Ying" <ying.huang@...el.com>
> Cc: Jonathan Cameron <Jonathan.Cameron@...wei.com>
> Cc: Dan Williams <dan.j.williams@...el.com>
> Cc: Davidlohr Bueso <dave@...olabs.net>
> Cc: Jonathan Cameron <jonathan.cameron@...wei.com>
> Cc: Dave Jiang <dave.jiang@...el.com>
> Cc: Alison Schofield <alison.schofield@...el.com>
> Cc: Vishal Verma <vishal.l.verma@...el.com>
> Cc: Ira Weiny <ira.weiny@...el.com>
> Cc: Alejandro Lucero <alucerop@....com>
> ---
>  drivers/cxl/acpi.c           |  2 +-
>  drivers/cxl/core/hdm.c       | 16 ++++++++--------
>  drivers/cxl/core/port.c      |  6 +++---
>  drivers/cxl/core/region.c    |  2 +-
>  drivers/cxl/cxl.h            |  4 ++--
>  tools/testing/cxl/test/cxl.c |  6 +++---
>  6 files changed, 18 insertions(+), 18 deletions(-)
> 

Reviewed-by: Gregory Price <gourry@...rry.net>