mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
synced 2025-08-28 17:39:52 +00:00
798f589092
With MMIO logging enabled, the MMIO access are traced and could be sent to an STM device. Thus, an STM driver MMIO access could create circular call chain with MMIO logging. Disable it for STM driver. [] stm_source_write[stm_core]+0xc4 [] stm_ftrace_write[stm_ftrace]+0x40 [] trace_event_buffer_commit+0x238 [] trace_event_raw_event_rwmmio_rw_template+0x8c [] log_post_write_mmio+0xb4 [] writel_relaxed[coresight_stm]+0x80 [] stm_generic_packet[coresight_stm]+0x1a8 [] stm_data_write[stm_core]+0x78 [] stm_source_write[stm_core]+0x7c [] stm_ftrace_write[stm_ftrace]+0x40 [] trace_event_buffer_commit+0x238 [] trace_event_raw_event_rwmmio_read+0x84 [] log_read_mmio+0xac [] readl_relaxed[coresight_tmc]+0x50 Signed-off-by: Mao Jinlong <quic_jinlmao@quicinc.com> Reviewed-by: Leo Yan <leo.yan@arm.com> Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com> Link: https://lore.kernel.org/r/20250506075743.1398257-1-quic_jinlmao@quicinc.com
59 lines
2.5 KiB
Makefile
59 lines
2.5 KiB
Makefile
# SPDX-License-Identifier: GPL-2.0
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#
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# Makefile for CoreSight drivers.
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#
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# Current W=1 warnings
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subdir-ccflags-y += -Wextra -Wunused -Wno-unused-parameter
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subdir-ccflags-y += -Wmissing-declarations
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subdir-ccflags-y += -Wmissing-format-attribute
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subdir-ccflags-y += -Wmissing-prototypes
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subdir-ccflags-y += -Wold-style-definition
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subdir-ccflags-y += -Wmissing-include-dirs
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subdir-ccflags-y += -Wno-sign-compare
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condflags := \
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$(call cc-option, -Wrestrict) \
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$(call cc-option, -Wunused-but-set-variable) \
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$(call cc-option, -Wunused-const-variable) \
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$(call cc-option, -Wpacked-not-aligned) \
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$(call cc-option, -Wformat-overflow) \
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$(call cc-option, -Wformat-truncation) \
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$(call cc-option, -Wstringop-overflow) \
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$(call cc-option, -Wstringop-truncation)
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subdir-ccflags-y += $(condflags)
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CFLAGS_coresight-stm.o := -D__DISABLE_TRACE_MMIO__
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obj-$(CONFIG_CORESIGHT) += coresight.o
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coresight-y := coresight-core.o coresight-etm-perf.o coresight-platform.o \
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coresight-sysfs.o coresight-syscfg.o coresight-config.o \
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coresight-cfg-preload.o coresight-cfg-afdo.o coresight-cfg-pstop.o \
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coresight-syscfg-configfs.o coresight-trace-id.o
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obj-$(CONFIG_CORESIGHT_LINK_AND_SINK_TMC) += coresight-tmc.o
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coresight-tmc-y := coresight-tmc-core.o coresight-tmc-etf.o \
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coresight-tmc-etr.o
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obj-$(CONFIG_CORESIGHT_SINK_TPIU) += coresight-tpiu.o
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obj-$(CONFIG_CORESIGHT_SINK_ETBV10) += coresight-etb10.o
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obj-$(CONFIG_CORESIGHT_LINKS_AND_SINKS) += coresight-funnel.o \
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coresight-replicator.o
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obj-$(CONFIG_CORESIGHT_SOURCE_ETM3X) += coresight-etm3x.o
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coresight-etm3x-y := coresight-etm3x-core.o coresight-etm-cp14.o \
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coresight-etm3x-sysfs.o
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obj-$(CONFIG_CORESIGHT_SOURCE_ETM4X) += coresight-etm4x.o
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coresight-etm4x-y := coresight-etm4x-core.o coresight-etm4x-sysfs.o \
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coresight-etm4x-cfg.o
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obj-$(CONFIG_CORESIGHT_STM) += coresight-stm.o
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obj-$(CONFIG_CORESIGHT_CPU_DEBUG) += coresight-cpu-debug.o
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obj-$(CONFIG_CORESIGHT_CATU) += coresight-catu.o
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obj-$(CONFIG_CORESIGHT_CTI) += coresight-cti.o
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obj-$(CONFIG_CORESIGHT_TRBE) += coresight-trbe.o
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obj-$(CONFIG_CORESIGHT_TPDM) += coresight-tpdm.o
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obj-$(CONFIG_CORESIGHT_TPDA) += coresight-tpda.o
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coresight-cti-y := coresight-cti-core.o coresight-cti-platform.o \
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coresight-cti-sysfs.o
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obj-$(CONFIG_ULTRASOC_SMB) += ultrasoc-smb.o
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obj-$(CONFIG_CORESIGHT_DUMMY) += coresight-dummy.o
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obj-$(CONFIG_CORESIGHT_CTCU) += coresight-ctcu.o
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coresight-ctcu-y := coresight-ctcu-core.o
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obj-$(CONFIG_CORESIGHT_KUNIT_TESTS) += coresight-kunit-tests.o
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