diff mbox series

[22/46] tools/testing/cxl: Expand CFMWS windows

Message ID 165603886721.551046.8682583835505795210.stgit@dwillia2-xfh
State New
Headers show
Series CXL PMEM Region Provisioning | expand

Commit Message

Dan Williams June 24, 2022, 2:47 a.m. UTC
For the x2 host-bridge interleave windows, allow for a
x8-endpoint-interleave configuration per memory-type with each device
contributing the minimum 256MB extent. Similarly, for the x1 host-bridge
interleave windows, allow for a x4-endpoint-interleave configuration per
memory-type.

Bump up the number of decoders per-port to support hosting 8 regions.

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
---
 tools/testing/cxl/test/cxl.c |   10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

Comments

Jonathan Cameron June 29, 2022, 4:14 p.m. UTC | #1
On Thu, 23 Jun 2022 19:47:47 -0700
Dan Williams <dan.j.williams@intel.com> wrote:

> For the x2 host-bridge interleave windows, allow for a
> x8-endpoint-interleave configuration per memory-type with each device
> contributing the minimum 256MB extent. Similarly, for the x1 host-bridge
> interleave windows, allow for a x4-endpoint-interleave configuration per
> memory-type.
> 
> Bump up the number of decoders per-port to support hosting 8 regions.
> 
> Signed-off-by: Dan Williams <dan.j.williams@intel.com>

Reviewed-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>

Hmm. I should get around to adding multiple decoders to the programmable
bits of the QEMU emulation to give us more flexibility.  Mind you
volatile memory support would probably also be good ;)

Jonathan

> ---
>  tools/testing/cxl/test/cxl.c |   10 +++++-----
>  1 file changed, 5 insertions(+), 5 deletions(-)
> 
> diff --git a/tools/testing/cxl/test/cxl.c b/tools/testing/cxl/test/cxl.c
> index b6e6bc02a507..599326796b83 100644
> --- a/tools/testing/cxl/test/cxl.c
> +++ b/tools/testing/cxl/test/cxl.c
> @@ -14,7 +14,7 @@
>  #define NR_CXL_HOST_BRIDGES 2
>  #define NR_CXL_ROOT_PORTS 2
>  #define NR_CXL_SWITCH_PORTS 2
> -#define NR_CXL_PORT_DECODERS 2
> +#define NR_CXL_PORT_DECODERS 8
>  
>  static struct platform_device *cxl_acpi;
>  static struct platform_device *cxl_host_bridge[NR_CXL_HOST_BRIDGES];
> @@ -118,7 +118,7 @@ static struct {
>  			.restrictions = ACPI_CEDT_CFMWS_RESTRICT_TYPE3 |
>  					ACPI_CEDT_CFMWS_RESTRICT_VOLATILE,
>  			.qtg_id = 0,
> -			.window_size = SZ_256M,
> +			.window_size = SZ_256M * 4UL,
>  		},
>  		.target = { 0 },
>  	},
> @@ -133,7 +133,7 @@ static struct {
>  			.restrictions = ACPI_CEDT_CFMWS_RESTRICT_TYPE3 |
>  					ACPI_CEDT_CFMWS_RESTRICT_VOLATILE,
>  			.qtg_id = 1,
> -			.window_size = SZ_256M * 2,
> +			.window_size = SZ_256M * 8UL,
>  		},
>  		.target = { 0, 1, },
>  	},
> @@ -148,7 +148,7 @@ static struct {
>  			.restrictions = ACPI_CEDT_CFMWS_RESTRICT_TYPE3 |
>  					ACPI_CEDT_CFMWS_RESTRICT_PMEM,
>  			.qtg_id = 2,
> -			.window_size = SZ_256M,
> +			.window_size = SZ_256M * 4UL,
>  		},
>  		.target = { 0 },
>  	},
> @@ -163,7 +163,7 @@ static struct {
>  			.restrictions = ACPI_CEDT_CFMWS_RESTRICT_TYPE3 |
>  					ACPI_CEDT_CFMWS_RESTRICT_PMEM,
>  			.qtg_id = 3,
> -			.window_size = SZ_256M * 2,
> +			.window_size = SZ_256M * 8UL,
>  		},
>  		.target = { 0, 1, },
>  	},
>
diff mbox series

Patch

diff --git a/tools/testing/cxl/test/cxl.c b/tools/testing/cxl/test/cxl.c
index b6e6bc02a507..599326796b83 100644
--- a/tools/testing/cxl/test/cxl.c
+++ b/tools/testing/cxl/test/cxl.c
@@ -14,7 +14,7 @@ 
 #define NR_CXL_HOST_BRIDGES 2
 #define NR_CXL_ROOT_PORTS 2
 #define NR_CXL_SWITCH_PORTS 2
-#define NR_CXL_PORT_DECODERS 2
+#define NR_CXL_PORT_DECODERS 8
 
 static struct platform_device *cxl_acpi;
 static struct platform_device *cxl_host_bridge[NR_CXL_HOST_BRIDGES];
@@ -118,7 +118,7 @@  static struct {
 			.restrictions = ACPI_CEDT_CFMWS_RESTRICT_TYPE3 |
 					ACPI_CEDT_CFMWS_RESTRICT_VOLATILE,
 			.qtg_id = 0,
-			.window_size = SZ_256M,
+			.window_size = SZ_256M * 4UL,
 		},
 		.target = { 0 },
 	},
@@ -133,7 +133,7 @@  static struct {
 			.restrictions = ACPI_CEDT_CFMWS_RESTRICT_TYPE3 |
 					ACPI_CEDT_CFMWS_RESTRICT_VOLATILE,
 			.qtg_id = 1,
-			.window_size = SZ_256M * 2,
+			.window_size = SZ_256M * 8UL,
 		},
 		.target = { 0, 1, },
 	},
@@ -148,7 +148,7 @@  static struct {
 			.restrictions = ACPI_CEDT_CFMWS_RESTRICT_TYPE3 |
 					ACPI_CEDT_CFMWS_RESTRICT_PMEM,
 			.qtg_id = 2,
-			.window_size = SZ_256M,
+			.window_size = SZ_256M * 4UL,
 		},
 		.target = { 0 },
 	},
@@ -163,7 +163,7 @@  static struct {
 			.restrictions = ACPI_CEDT_CFMWS_RESTRICT_TYPE3 |
 					ACPI_CEDT_CFMWS_RESTRICT_PMEM,
 			.qtg_id = 3,
-			.window_size = SZ_256M * 2,
+			.window_size = SZ_256M * 8UL,
 		},
 		.target = { 0, 1, },
 	},