forked from luck/tmp_suning_uos_patched
37afff0d87
Introduce a new "protect-exec" reserved sram area type which is makes use of the the existing functionality provided for the "pool" sram region type for use with the genalloc framework and with the added requirement that it be maintained as read-only and executable while allowing for an arbitrary number of drivers to share the space. This introduces a common way to maintain a region of sram as read-only and executable and also introduces a helper function, sram_exec_copy, which allows for copying data to this protected region while maintaining locking to avoid conflicts between multiple users of the same space. A region of memory that is marked with the "protect-exec" flag in the device tree also has the requirement of providing a page aligned block of memory so that the page attribute manipulation does not affect surrounding regions. Also, selectively enable this only for builds that support set_memory_* calls, for now just ARM, through the use of Kconfig. Signed-off-by: Dave Gerlach <d-gerlach@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
72 lines
2.5 KiB
Makefile
72 lines
2.5 KiB
Makefile
#
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# Makefile for misc devices that really don't fit anywhere else.
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#
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obj-$(CONFIG_IBM_ASM) += ibmasm/
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obj-$(CONFIG_AD525X_DPOT) += ad525x_dpot.o
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obj-$(CONFIG_AD525X_DPOT_I2C) += ad525x_dpot-i2c.o
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obj-$(CONFIG_AD525X_DPOT_SPI) += ad525x_dpot-spi.o
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obj-$(CONFIG_INTEL_MID_PTI) += pti.o
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obj-$(CONFIG_ATMEL_SSC) += atmel-ssc.o
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obj-$(CONFIG_ATMEL_TCLIB) += atmel_tclib.o
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obj-$(CONFIG_DUMMY_IRQ) += dummy-irq.o
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obj-$(CONFIG_ICS932S401) += ics932s401.o
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obj-$(CONFIG_LKDTM) += lkdtm.o
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obj-$(CONFIG_TIFM_CORE) += tifm_core.o
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obj-$(CONFIG_TIFM_7XX1) += tifm_7xx1.o
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obj-$(CONFIG_PHANTOM) += phantom.o
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obj-$(CONFIG_QCOM_COINCELL) += qcom-coincell.o
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obj-$(CONFIG_SENSORS_BH1770) += bh1770glc.o
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obj-$(CONFIG_SENSORS_APDS990X) += apds990x.o
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obj-$(CONFIG_SGI_IOC4) += ioc4.o
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obj-$(CONFIG_ENCLOSURE_SERVICES) += enclosure.o
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obj-$(CONFIG_KGDB_TESTS) += kgdbts.o
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obj-$(CONFIG_SGI_XP) += sgi-xp/
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obj-$(CONFIG_SGI_GRU) += sgi-gru/
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obj-$(CONFIG_CS5535_MFGPT) += cs5535-mfgpt.o
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obj-$(CONFIG_HP_ILO) += hpilo.o
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obj-$(CONFIG_APDS9802ALS) += apds9802als.o
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obj-$(CONFIG_ISL29003) += isl29003.o
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obj-$(CONFIG_ISL29020) += isl29020.o
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obj-$(CONFIG_SENSORS_TSL2550) += tsl2550.o
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obj-$(CONFIG_DS1682) += ds1682.o
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obj-$(CONFIG_TI_DAC7512) += ti_dac7512.o
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obj-$(CONFIG_C2PORT) += c2port/
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obj-$(CONFIG_HMC6352) += hmc6352.o
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obj-y += eeprom/
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obj-y += cb710/
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obj-$(CONFIG_SPEAR13XX_PCIE_GADGET) += spear13xx_pcie_gadget.o
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obj-$(CONFIG_VMWARE_BALLOON) += vmw_balloon.o
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obj-$(CONFIG_ARM_CHARLCD) += arm-charlcd.o
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obj-$(CONFIG_PCH_PHUB) += pch_phub.o
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obj-y += ti-st/
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obj-y += lis3lv02d/
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obj-$(CONFIG_USB_SWITCH_FSA9480) += fsa9480.o
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obj-$(CONFIG_ALTERA_STAPL) +=altera-stapl/
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obj-$(CONFIG_INTEL_MEI) += mei/
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obj-$(CONFIG_VMWARE_VMCI) += vmw_vmci/
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obj-$(CONFIG_LATTICE_ECP3_CONFIG) += lattice-ecp3-config.o
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obj-$(CONFIG_SRAM) += sram.o
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obj-$(CONFIG_SRAM_EXEC) += sram-exec.o
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obj-y += mic/
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obj-$(CONFIG_GENWQE) += genwqe/
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obj-$(CONFIG_ECHO) += echo/
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obj-$(CONFIG_VEXPRESS_SYSCFG) += vexpress-syscfg.o
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obj-$(CONFIG_CXL_BASE) += cxl/
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obj-$(CONFIG_PANEL) += panel.o
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lkdtm-$(CONFIG_LKDTM) += lkdtm_core.o
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lkdtm-$(CONFIG_LKDTM) += lkdtm_bugs.o
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lkdtm-$(CONFIG_LKDTM) += lkdtm_heap.o
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lkdtm-$(CONFIG_LKDTM) += lkdtm_perms.o
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lkdtm-$(CONFIG_LKDTM) += lkdtm_rodata_objcopy.o
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lkdtm-$(CONFIG_LKDTM) += lkdtm_usercopy.o
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OBJCOPYFLAGS :=
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OBJCOPYFLAGS_lkdtm_rodata_objcopy.o := \
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--set-section-flags .text=alloc,readonly \
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--rename-section .text=.rodata
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targets += lkdtm_rodata.o lkdtm_rodata_objcopy.o
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$(obj)/lkdtm_rodata_objcopy.o: $(obj)/lkdtm_rodata.o FORCE
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$(call if_changed,objcopy)
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