From: Ben Widawsky <ben.widawsky@xxxxxxxxx>
The cxl_mem module was renamed cxl_pci in commit 21e9f76733a8 ("cxl:
Rename mem to pci"). In preparation for adding an ancillary driver for
cxl_memdev devices (registered on the cxl bus by cxl_pci), go ahead and
rename CONFIG_CXL_MEM to CONFIG_CXL_PCI. Free up the CXL_MEM name for
that new driver to manage CXL.mem endpoint operations.
Suggested-by: Dan Williams <dan.j.williams@xxxxxxxxx>
Reviewed-by: Jonathan Cameron <Jonathan.Cameron@xxxxxxxxxx>
Signed-off-by: Ben Widawsky <ben.widawsky@xxxxxxxxx>
Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx>
---
drivers/cxl/Kconfig | 23 ++++++++++++-----------
drivers/cxl/Makefile | 2 +-
2 files changed, 13 insertions(+), 12 deletions(-)
diff --git a/drivers/cxl/Kconfig b/drivers/cxl/Kconfig
index 67c91378f2dd..ef05e96f8f97 100644
--- a/drivers/cxl/Kconfig
+++ b/drivers/cxl/Kconfig
@@ -13,25 +13,26 @@ menuconfig CXL_BUS
if CXL_BUS
-config CXL_MEM
- tristate "CXL.mem: Memory Devices"
+config CXL_PCI
+ tristate "PCI manageability"
default CXL_BUS
help
- The CXL.mem protocol allows a device to act as a provider of
- "System RAM" and/or "Persistent Memory" that is fully coherent
- as if the memory was attached to the typical CPU memory
- controller.
+ The CXL specification defines a "CXL memory device" sub-class in the
+ PCI "memory controller" base class of devices. Device's identified by
+ this class code provide support for volatile and / or persistent
+ memory to be mapped into the system address map (Host-managed Device
+ Memory (HDM)).
- Say 'y/m' to enable a driver that will attach to CXL.mem devices for
- configuration and management primarily via the mailbox interface. See
- Chapter 2.3 Type 3 CXL Device in the CXL 2.0 specification for more
- details.
+ Say 'y/m' to enable a driver that will attach to CXL memory expander
+ devices enumerated by the memory device class code for configuration
+ and management primarily via the mailbox interface. See Chapter 2.3
+ Type 3 CXL Device in the CXL 2.0 specification for more details.
If unsure say 'm'.
config CXL_MEM_RAW_COMMANDS
bool "RAW Command Interface for Memory Devices"
- depends on CXL_MEM
+ depends on CXL_PCI
help
Enable CXL RAW command interface.
diff --git a/drivers/cxl/Makefile b/drivers/cxl/Makefile
index d1aaabc940f3..cf07ae6cea17 100644
--- a/drivers/cxl/Makefile
+++ b/drivers/cxl/Makefile
@@ -1,6 +1,6 @@
# SPDX-License-Identifier: GPL-2.0
obj-$(CONFIG_CXL_BUS) += core/
-obj-$(CONFIG_CXL_MEM) += cxl_pci.o
+obj-$(CONFIG_CXL_PCI) += cxl_pci.o
obj-$(CONFIG_CXL_ACPI) += cxl_acpi.o
obj-$(CONFIG_CXL_PMEM) += cxl_pmem.o
