linux/tools/testing/cxl/Kbuild
Robert Richter 12b3d697c8 cxl: Remove core/acpi.c and cxl core dependency on ACPI
From Dave [1]:

"""
It was a mistake to introduce core/acpi.c and putting ACPI dependency on
cxl_core when adding the extended linear cache support.
"""

Current implementation calls hmat_get_extended_linear_cache_size() of
the ACPI subsystem. That external reference causes issue running
cxl_test as there is no way to "mock" that function and ignore it when
using cxl test.

Instead of working around that using cxlrd ops and extensively
expanding cxl_test code [1], just move HMAT calls out of the core
module to cxl_acpi. Implement this by adding a @cache_size member to
struct cxl_root_decoder. During initialization the cache size is
determined and added to the root decoder object in cxl_acpi. Later on
in cxl_core the cache_size parameter is used to setup extended linear
caching.

[1] https://patch.msgid.link/20250610172938.139428-1-dave.jiang@intel.com

[ dj: Remove core/acpi.o from tools/testing/cxl/Kbuild ]
[ dj: Add kdoc for cxlrd->cache_size ]

Cc: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Robert Richter <rrichter@amd.com>
Reviewed-by: Alison Schofield <alison.schofield@intel.com>
Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
Reviewed-by: Dave Jiang <dave.jiang@intel.com>
Link: https://patch.msgid.link/20250711151529.787470-1-rrichter@amd.com
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
2025-07-15 07:51:54 -07:00

76 lines
2.3 KiB
Makefile

# SPDX-License-Identifier: GPL-2.0
ldflags-y += --wrap=acpi_table_parse_cedt
ldflags-y += --wrap=is_acpi_device_node
ldflags-y += --wrap=acpi_evaluate_integer
ldflags-y += --wrap=acpi_pci_find_root
ldflags-y += --wrap=nvdimm_bus_register
ldflags-y += --wrap=devm_cxl_port_enumerate_dports
ldflags-y += --wrap=devm_cxl_setup_hdm
ldflags-y += --wrap=devm_cxl_add_passthrough_decoder
ldflags-y += --wrap=devm_cxl_enumerate_decoders
ldflags-y += --wrap=cxl_await_media_ready
ldflags-y += --wrap=cxl_hdm_decode_init
ldflags-y += --wrap=cxl_dvsec_rr_decode
ldflags-y += --wrap=devm_cxl_add_rch_dport
ldflags-y += --wrap=cxl_rcd_component_reg_phys
ldflags-y += --wrap=cxl_endpoint_parse_cdat
ldflags-y += --wrap=cxl_dport_init_ras_reporting
DRIVERS := ../../../drivers
CXL_SRC := $(DRIVERS)/cxl
CXL_CORE_SRC := $(DRIVERS)/cxl/core
ccflags-y := -I$(srctree)/drivers/cxl/
ccflags-y += -D__mock=__weak
ccflags-y += -DTRACE_INCLUDE_PATH=$(CXL_CORE_SRC) -I$(srctree)/drivers/cxl/core/
obj-m += cxl_acpi.o
cxl_acpi-y := $(CXL_SRC)/acpi.o
cxl_acpi-y += mock_acpi.o
cxl_acpi-y += config_check.o
cxl_acpi-y += cxl_acpi_test.o
obj-m += cxl_pmem.o
cxl_pmem-y := $(CXL_SRC)/pmem.o
cxl_pmem-y += $(CXL_SRC)/security.o
cxl_pmem-y += config_check.o
cxl_pmem-y += cxl_pmem_test.o
obj-m += cxl_port.o
cxl_port-y := $(CXL_SRC)/port.o
cxl_port-y += config_check.o
cxl_port-y += cxl_port_test.o
obj-m += cxl_mem.o
cxl_mem-y := $(CXL_SRC)/mem.o
cxl_mem-y += config_check.o
cxl_mem-y += cxl_mem_test.o
obj-m += cxl_core.o
cxl_core-y := $(CXL_CORE_SRC)/port.o
cxl_core-y += $(CXL_CORE_SRC)/pmem.o
cxl_core-y += $(CXL_CORE_SRC)/regs.o
cxl_core-y += $(CXL_CORE_SRC)/memdev.o
cxl_core-y += $(CXL_CORE_SRC)/mbox.o
cxl_core-y += $(CXL_CORE_SRC)/pci.o
cxl_core-y += $(CXL_CORE_SRC)/hdm.o
cxl_core-y += $(CXL_CORE_SRC)/pmu.o
cxl_core-y += $(CXL_CORE_SRC)/cdat.o
cxl_core-y += $(CXL_CORE_SRC)/ras.o
cxl_core-$(CONFIG_TRACING) += $(CXL_CORE_SRC)/trace.o
cxl_core-$(CONFIG_CXL_REGION) += $(CXL_CORE_SRC)/region.o
cxl_core-$(CONFIG_CXL_MCE) += $(CXL_CORE_SRC)/mce.o
cxl_core-$(CONFIG_CXL_FEATURES) += $(CXL_CORE_SRC)/features.o
cxl_core-$(CONFIG_CXL_EDAC_MEM_FEATURES) += $(CXL_CORE_SRC)/edac.o
cxl_core-y += config_check.o
cxl_core-y += cxl_core_test.o
cxl_core-y += cxl_core_exports.o
KBUILD_CFLAGS := $(filter-out -Wmissing-prototypes -Wmissing-declarations, $(KBUILD_CFLAGS))
obj-m += test/