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[185.104.139.70]) by smtp.gmail.com with ESMTPSA id af79cd13be357-81b5ee69108sm9067585a.56.2025.09.08.14.38.03 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 08 Sep 2025 14:38:04 -0700 (PDT) Date: Mon, 8 Sep 2025 17:38:01 -0400 From: Gregory Price To: Davidlohr Bueso Cc: rafael.j.wysocki@intel.com, dave.jiang@intel.com, dan.j.williams@intel.com, jonathan.cameron@huawei.com, alejandro.lucero-palau@amd.com, ira.weiny@intel.com, alison.schofield@intel.com, a.manzanares@samsung.com, linux-acpi@vger.kernel.org, linux-cxl@vger.kernel.org, linux-kernel@vger.kernel.org, "Rafael J . Wysocki" Subject: Re: [PATCH v2] cxl/acpi: Rename CFMW coherency restrictions Message-ID: References: <20250908160034.86471-1-dave@stgolabs.net> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250908160034.86471-1-dave@stgolabs.net> On Mon, Sep 08, 2025 at 09:00:34AM -0700, Davidlohr Bueso wrote: > ACPICA commit 710745713ad3a2543dbfb70e84764f31f0e46bdc > > This has been renamed in more recent CXL specs, as > type3 (memory expanders) can also use HDM-DB for > device coherent memory. > > Link: https://github.com/acpica/acpica/commit/710745713ad3a2543dbfb70e84764f31f0e46bdc > Acked-by: Rafael J. Wysocki (Intel) Reviewed-by: Gregory Price > Signed-off-by: Davidlohr Bueso > --- > drivers/cxl/acpi.c | 4 ++-- > include/acpi/actbl1.h | 4 ++-- > tools/testing/cxl/test/cxl.c | 18 +++++++++--------- > 3 files changed, 13 insertions(+), 13 deletions(-) > > diff --git a/drivers/cxl/acpi.c b/drivers/cxl/acpi.c > index 26c494704437..2cf75b553f26 100644 > --- a/drivers/cxl/acpi.c > +++ b/drivers/cxl/acpi.c > @@ -128,9 +128,9 @@ static unsigned long cfmws_to_decoder_flags(int restrictions) > { > unsigned long flags = CXL_DECODER_F_ENABLE; > > - if (restrictions & ACPI_CEDT_CFMWS_RESTRICT_TYPE2) > + if (restrictions & ACPI_CEDT_CFMWS_RESTRICT_DEVMEM) > flags |= CXL_DECODER_F_TYPE2; > - if (restrictions & ACPI_CEDT_CFMWS_RESTRICT_TYPE3) > + if (restrictions & ACPI_CEDT_CFMWS_RESTRICT_HOSTONLYMEM) > flags |= CXL_DECODER_F_TYPE3; > if (restrictions & ACPI_CEDT_CFMWS_RESTRICT_VOLATILE) > flags |= CXL_DECODER_F_RAM; > diff --git a/include/acpi/actbl1.h b/include/acpi/actbl1.h > index 99fd1588ff38..eb787dfbd2fa 100644 > --- a/include/acpi/actbl1.h > +++ b/include/acpi/actbl1.h > @@ -560,8 +560,8 @@ struct acpi_cedt_cfmws_target_element { > > /* Values for Restrictions field above */ > > -#define ACPI_CEDT_CFMWS_RESTRICT_TYPE2 (1) > -#define ACPI_CEDT_CFMWS_RESTRICT_TYPE3 (1<<1) > +#define ACPI_CEDT_CFMWS_RESTRICT_DEVMEM (1) > +#define ACPI_CEDT_CFMWS_RESTRICT_HOSTONLYMEM (1<<1) > #define ACPI_CEDT_CFMWS_RESTRICT_VOLATILE (1<<2) > #define ACPI_CEDT_CFMWS_RESTRICT_PMEM (1<<3) > #define ACPI_CEDT_CFMWS_RESTRICT_FIXED (1<<4) > diff --git a/tools/testing/cxl/test/cxl.c b/tools/testing/cxl/test/cxl.c > index 6a25cca5636f..ba50338f8ada 100644 > --- a/tools/testing/cxl/test/cxl.c > +++ b/tools/testing/cxl/test/cxl.c > @@ -210,7 +210,7 @@ static struct { > }, > .interleave_ways = 0, > .granularity = 4, > - .restrictions = ACPI_CEDT_CFMWS_RESTRICT_TYPE3 | > + .restrictions = ACPI_CEDT_CFMWS_RESTRICT_HOSTONLYMEM | > ACPI_CEDT_CFMWS_RESTRICT_VOLATILE, > .qtg_id = FAKE_QTG_ID, > .window_size = SZ_256M * 4UL, > @@ -225,7 +225,7 @@ static struct { > }, > .interleave_ways = 1, > .granularity = 4, > - .restrictions = ACPI_CEDT_CFMWS_RESTRICT_TYPE3 | > + .restrictions = ACPI_CEDT_CFMWS_RESTRICT_HOSTONLYMEM | > ACPI_CEDT_CFMWS_RESTRICT_VOLATILE, > .qtg_id = FAKE_QTG_ID, > .window_size = SZ_256M * 8UL, > @@ -240,7 +240,7 @@ static struct { > }, > .interleave_ways = 0, > .granularity = 4, > - .restrictions = ACPI_CEDT_CFMWS_RESTRICT_TYPE3 | > + .restrictions = ACPI_CEDT_CFMWS_RESTRICT_HOSTONLYMEM | > ACPI_CEDT_CFMWS_RESTRICT_PMEM, > .qtg_id = FAKE_QTG_ID, > .window_size = SZ_256M * 4UL, > @@ -255,7 +255,7 @@ static struct { > }, > .interleave_ways = 1, > .granularity = 4, > - .restrictions = ACPI_CEDT_CFMWS_RESTRICT_TYPE3 | > + .restrictions = ACPI_CEDT_CFMWS_RESTRICT_HOSTONLYMEM | > ACPI_CEDT_CFMWS_RESTRICT_PMEM, > .qtg_id = FAKE_QTG_ID, > .window_size = SZ_256M * 8UL, > @@ -270,7 +270,7 @@ static struct { > }, > .interleave_ways = 0, > .granularity = 4, > - .restrictions = ACPI_CEDT_CFMWS_RESTRICT_TYPE3 | > + .restrictions = ACPI_CEDT_CFMWS_RESTRICT_HOSTONLYMEM | > ACPI_CEDT_CFMWS_RESTRICT_PMEM, > .qtg_id = FAKE_QTG_ID, > .window_size = SZ_256M * 4UL, > @@ -285,7 +285,7 @@ static struct { > }, > .interleave_ways = 0, > .granularity = 4, > - .restrictions = ACPI_CEDT_CFMWS_RESTRICT_TYPE3 | > + .restrictions = ACPI_CEDT_CFMWS_RESTRICT_HOSTONLYMEM | > ACPI_CEDT_CFMWS_RESTRICT_VOLATILE, > .qtg_id = FAKE_QTG_ID, > .window_size = SZ_256M, > @@ -302,7 +302,7 @@ static struct { > .interleave_arithmetic = ACPI_CEDT_CFMWS_ARITHMETIC_XOR, > .interleave_ways = 0, > .granularity = 4, > - .restrictions = ACPI_CEDT_CFMWS_RESTRICT_TYPE3 | > + .restrictions = ACPI_CEDT_CFMWS_RESTRICT_HOSTONLYMEM | > ACPI_CEDT_CFMWS_RESTRICT_PMEM, > .qtg_id = FAKE_QTG_ID, > .window_size = SZ_256M * 8UL, > @@ -318,7 +318,7 @@ static struct { > .interleave_arithmetic = ACPI_CEDT_CFMWS_ARITHMETIC_XOR, > .interleave_ways = 1, > .granularity = 0, > - .restrictions = ACPI_CEDT_CFMWS_RESTRICT_TYPE3 | > + .restrictions = ACPI_CEDT_CFMWS_RESTRICT_HOSTONLYMEM | > ACPI_CEDT_CFMWS_RESTRICT_PMEM, > .qtg_id = FAKE_QTG_ID, > .window_size = SZ_256M * 8UL, > @@ -334,7 +334,7 @@ static struct { > .interleave_arithmetic = ACPI_CEDT_CFMWS_ARITHMETIC_XOR, > .interleave_ways = 8, > .granularity = 1, > - .restrictions = ACPI_CEDT_CFMWS_RESTRICT_TYPE3 | > + .restrictions = ACPI_CEDT_CFMWS_RESTRICT_HOSTONLYMEM | > ACPI_CEDT_CFMWS_RESTRICT_PMEM, > .qtg_id = FAKE_QTG_ID, > .window_size = SZ_512M * 6UL, > -- > 2.39.5 >