diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-04-02 14:27:15 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-04-02 14:27:15 -0700 |
| commit | b9f2b21a32906a47c220b5167b88869f2c90f1c4 (patch) | |
| tree | 96416cec877f9c1f2ee0f0ccdee64e38cc8e0683 | |
| parent | 70f6c087573eeb406252ff8d98f511eb5f71496e (diff) | |
| parent | a0e7398357f297dd22d043fb2d5aa1c44d61ca10 (diff) | |
Merge tag 'dt-for-linus' of git://git.secretlab.ca/git/linux
Pull devicetree changes from Grant Likely:
"Updates to devicetree core code. This branch contains the following
notable changes:
- add reserved memory binding
- make struct device_node a kobject and remove legacy
/proc/device-tree
- ePAPR conformance fixes
- update in-kernel DTC copy to version v1.4.0
- preparatory changes for dynamic device tree overlays
- minor bug fixes and documentation changes
The most significant change in this branch is the conversion of struct
device_node to be a kobject that is exposed via sysfs and removal of
the old /proc/device-tree code. This simplifies the device tree
handling code and tightens up the lifecycle on device tree nodes.
[updated: added fix for dangling select PROC_DEVICETREE]"
* tag 'dt-for-linus' of git://git.secretlab.ca/git/linux: (29 commits)
dt: Remove dangling "select PROC_DEVICETREE"
of: Add support for ePAPR "stdout-path" property
of: device_node kobject lifecycle fixes
of: only scan for reserved mem when fdt present
powerpc: add support for reserved memory defined by device tree
arm64: add support for reserved memory defined by device tree
of: add missing major vendors
of: add vendor prefix for SMSC
of: remove /proc/device-tree
of/selftest: Add self tests for manipulation of properties
of: Make device nodes kobjects so they show up in sysfs
arm: add support for reserved memory defined by device tree
drivers: of: add support for custom reserved memory drivers
drivers: of: add initialization code for dynamic reserved memory
drivers: of: add initialization code for static reserved memory
of: document bindings for reserved-memory nodes
Revert "of: fix of_update_property()"
kbuild: dtbs_install: new make target
ARM: mvebu: Allows to get the SoC ID even without PCI enabled
of: Allows to use the PCI translator without the PCI core
...
45 files changed, 1555 insertions, 728 deletions
diff --git a/Documentation/ABI/testing/sysfs-firmware-ofw b/Documentation/ABI/testing/sysfs-firmware-ofw new file mode 100644 index 000000000000..f562b188e71d --- /dev/null +++ b/Documentation/ABI/testing/sysfs-firmware-ofw @@ -0,0 +1,28 @@ +What: /sys/firmware/devicetree/* +Date: November 2013 +Contact: Grant Likely <grant.likely@linaro.org> +Description: + When using OpenFirmware or a Flattened Device Tree to enumerate + hardware, the device tree structure will be exposed in this + directory. + + It is possible for multiple device-tree directories to exist. + Some device drivers use a separate detached device tree which + have no attachment to the system tree and will appear in a + different subdirectory under /sys/firmware/devicetree. + + Userspace must not use the /sys/firmware/devicetree/base + path directly, but instead should follow /proc/device-tree + symlink. It is possible that the absolute path will change + in the future, but the symlink is the stable ABI. + + The /proc/device-tree symlink replaces the devicetree /proc + filesystem support, and has largely the same semantics and + should be compatible with existing userspace. + + The contents of /sys/firmware/devicetree/ is a + hierarchy of directories, one per device tree node. The + directory name is the resolved path component name (node + name plus address). Properties are represented as files + in the directory. The contents of each file is the exact + binary data from the device tree. diff --git a/Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt b/Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt new file mode 100644 index 000000000000..3da0ebdba8d9 --- /dev/null +++ b/Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt @@ -0,0 +1,133 @@ +*** Reserved memory regions *** + +Reserved memory is specified as a node under the /reserved-memory node. +The operating system shall exclude reserved memory from normal usage +one can create child nodes describing particular reserved (excluded from +normal use) memory regions. Such memory regions are usually designed for +the special usage by various device drivers. + +Parameters for each memory region can be encoded into the device tree +with the following nodes: + +/reserved-memory node +--------------------- +#address-cells, #size-cells (required) - standard definition + - Should use the same values as the root node +ranges (required) - standard definition + - Should be empty + +/reserved-memory/ child nodes +----------------------------- +Each child of the reserved-memory node specifies one or more regions of +reserved memory. Each child node may either use a 'reg' property to +specify a specific range of reserved memory, or a 'size' property with +optional constraints to request a dynamically allocated block of memory. + +Following the generic-names recommended practice, node names should +reflect the purpose of the node (ie. "framebuffer" or "dma-pool"). Unit +address (@<address>) should be appended to the name if the node is a +static allocation. + +Properties: +Requires either a) or b) below. +a) static allocation + reg (required) - standard definition +b) dynamic allocation + size (required) - length based on parent's #size-cells + - Size in bytes of memory to reserve. + alignment (optional) - length based on parent's #size-cells + - Address boundary for alignment of allocation. + alloc-ranges (optional) - prop-encoded-array (address, length pairs). + - Specifies regions of memory that are + acceptable to allocate from. + +If both reg and size are present, then the reg property takes precedence +and size is ignored. + +Additional properties: +compatible (optional) - standard definition + - may contain the following strings: + - shared-dma-pool: This indicates a region of memory meant to be + used as a shared pool of DMA buffers for a set of devices. It can + be used by an operating system to instanciate the necessary pool + management subsystem if necessary. + - vendor specific string in the form <vendor>,[<device>-]<usage> +no-map (optional) - empty property + - Indicates the operating system must not create a virtual mapping + of the region as part of its standard mapping of system memory, + nor permit speculative access to it under any circumstances other + than under the control of the device driver using the region. +reusable (optional) - empty property + - The operating system can use the memory in this region with the + limitation that the device driver(s) owning the region need to be + able to reclaim it back. Typically that means that the operating + system can use that region to store volatile or cached data that + can be otherwise regenerated or migrated elsewhere. + +Linux implementation note: +- If a "linux,cma-default" property is present, then Linux will use the + region for the default pool of the contiguous memory allocator. + +Device node references to reserved memory +----------------------------------------- +Regions in the /reserved-memory node may be referenced by other device +nodes by adding a memory-region property to the device node. + +memory-region (optional) - phandle, specifier pairs to children of /reserved-memory + +Example +------- +This example defines 3 contiguous regions are defined for Linux kernel: +one default of all device drivers (named linux,cma@72000000 and 64MiB in size), +one dedicated to the framebuffer device (named framebuffer@78000000, 8MiB), and +one for multimedia processing (named multimedia-memory@77000000, 64MiB). + +/ { + #address-cells = <1>; + #size-cells = <1>; + + memory { + reg = <0x40000000 0x40000000>; + }; + + reserved-memory { + #address-cells = <1>; + #size-cells = <1>; + ranges; + + /* global autoconfigured region for contiguous allocations */ + linux,cma { + compatible = "shared-dma-pool"; + reusable; + size = <0x4000000>; + alignment = <0x2000>; + linux,cma-default; + }; + + display_reserved: framebuffer@78000000 { + reg = <0x78000000 0x800000>; + }; + + multimedia_reserved: multimedia@77000000 { + compatible = "acme,multimedia-memory"; + reg = <0x77000000 0x4000000>; + }; + }; + + /* ... */ + + fb0: video@12300000 { + memory-region = <&display_reserved>; + /* ... */ + }; + + scaler: scaler@12500000 { + memory-region = <&multimedia_reserved>; + /* ... */ + }; + + codec: codec@12600000 { + memory-region = <&multimedia_reserved>; + /* ... */ + }; +}; diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt index 40ce2df0e0e9..95465d57eb31 100644 --- a/Documentation/devicetree/bindings/vendor-prefixes.txt +++ b/Documentation/devicetree/bindings/vendor-prefixes.txt @@ -3,6 +3,7 @@ Device tree binding vendor prefix registry. Keep list in alphabetical order. This isn't an exhaustive list, but you should add new prefixes to it before using them to avoid name-space collisions. +abilis Abilis Systems active-semi Active-Semi International Inc ad Avionic Design GmbH adi Analog Devices, Inc. @@ -11,14 +12,17 @@ ak Asahi Kasei Corp. allwinner Allwinner Technology Co., Ltd. altr Altera Corp. amcc Applied Micro Circuits Corporation (APM, formally AMCC) +amd Advanced Micro Devices (AMD), Inc. amstaos AMS-Taos Inc. apm Applied Micro Circuits Corporation (APM) arm ARM Ltd. +armadeus ARMadeus Systems SARL atmel Atmel Corporation auo AU Optronics Corporation avago Avago Technologies bosch Bosch Sensortec GmbH brcm Broadcom Corporation +calxeda Calxeda capella Capella Microsystems, Inc cavium Cavium, Inc. cdns Cadence Design Systems Inc. @@ -26,8 +30,10 @@ chrp Common Hardware Reference Platform chunghwa Chunghwa Picture Tubes Ltd. cirrus Cirrus Logic, Inc. cortina Cortina Systems, Inc. +crystalfontz Crystalfontz America, Inc. dallas Maxim Integrated Products (formerly Dallas Semiconductor) davicom DAVICOM Semiconductor, Inc. +dlink D-Link Systems, Inc. denx Denx Software Engineering edt Emerging Display Technologies emmicro EM Microelectronic @@ -37,7 +43,9 @@ est ESTeem Wireless Modems fsl Freescale Semiconductor GEFanuc GE Fanuc Intelligent Platforms Embedded Systems, Inc. gef GE Fanuc Intelligent Platforms Embedded Systems, Inc. +globalscale Globalscale Technologies, Inc. gmt Global Mixed-mode Technology, Inc. +google Google, Inc. gumstix Gumstix, Inc. haoyu Haoyu Microelectronic Co. Ltd. hisilicon Hisilicon Limited. @@ -46,9 +54,12 @@ hp Hewlett Packard ibm International Business Machines (IBM) idt Integrated Device Technologies, Inc. img Imagination Technologies Ltd. +intel Intel Corporation intercontrol Inter Control Group isl Intersil karo Ka-Ro electronics GmbH +lacie LaCie +lantiq Lantiq Semiconductor lg LG Corporation linux Linux-specific binding lsi LSI Corp. (LSI Logic) @@ -56,12 +67,16 @@ marvell Marvell Technology Group Ltd. maxim Maxim Integrated Products microchip Microchip Technology Inc. mosaixtech Mosaix Technologies, Inc. +moxa Moxa national National Semiconductor neonode Neonode Inc. +netgear NETGEAR nintendo Nintendo +nokia Nokia nvidia NVIDIA nxp NXP Semiconductors onnn ON Semiconductor Corp. +opencores OpenCores.org panasonic Panasonic Corporation phytec PHYTEC Messtechnik GmbH picochip Picochip Ltd @@ -80,6 +95,7 @@ sil Silicon Image silabs Silicon Laboratories simtek sirf SiRF Technology, Inc. +smsc Standard Microsystems Corporation snps Synopsys, Inc. spansion Spansion Inc. st STMicroelectronics @@ -94,4 +110,5 @@ via VIA Technologies, Inc. winbond Winbond Electronics corp. wlf Wolfson Microelectronics wm Wondermedia Technologies, Inc. +xes Extreme Engineering Solutions (X-ES) xlnx Xilinx @@ -729,6 +729,13 @@ export KBUILD_IMAGE ?= vmlinux export INSTALL_PATH ?= /boot # +# INSTALL_DTBS_PATH specifies a prefix for relocations required by build roots. +# Like INSTALL_MOD_PATH, it isn't defined in the Makefile, but can be passed as +# an argument if needed. Otherwise it defaults to the kernel install path +# +export INSTALL_DTBS_PATH ?= $(INSTALL_PATH)/dtbs/$(KERNELRELEASE) + +# # INSTALL_MOD_PATH specifies a prefix to MODLIB for module directory # relocations required by build roots. This is not defined in the # makefile but the argument can be passed to make if needed. diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index b76ae4185a3b..503da0a2a8ea 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -1918,6 +1918,7 @@ config USE_OF select IRQ_DOMAIN select OF select OF_EARLY_FLATTREE + select OF_RESERVED_MEM help Include support for flattened device tree machine descriptions. diff --git a/arch/arm/Makefile b/arch/arm/Makefile index 08a9ef58d9c3..fddf4beaee45 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -310,9 +310,9 @@ $(INSTALL_TARGETS): %.dtb: | scripts $(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $(boot)/dts/$@ -PHONY += dtbs -dtbs: scripts - $(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) dtbs +PHONY += dtbs dtbs_install +dtbs dtbs_install: prepare scripts + $(Q)$(MAKE) $(build)=$(boot)/dts MACHINE=$(MACHINE) $@ # We use MRPROPER_FILES and CLEAN_FILES now archclean: @@ -331,6 +331,7 @@ define archhelp echo ' bootpImage - Combined zImage and initial RAM disk' echo ' (supply initrd image via make variable INITRD=<path>)' echo '* dtbs - Build device tree blobs for enabled boards' + echo ' dtbs_install - Install dtbs to $(INSTALL_DTBS_PATH)' echo ' install - Install uncompressed kernel' echo ' zinstall - Install compressed kernel' echo ' uinstall - Install U-Boot wrapped compressed kernel' diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile index 032030361bef..d3cb0126a102 100644 --- a/arch/arm/boot/dts/Makefile +++ b/arch/arm/boot/dts/Makefile @@ -323,7 +323,7 @@ dtb-$(CONFIG_ARCH_ZYNQ) += zynq-zc702.dtb \ zynq-zc706.dtb \ zynq-zed.dtb -targets += dtbs +targets += dtbs dtbs_install targets += $(dtb-y) endif @@ -333,3 +333,5 @@ dtbs: $(addprefix $(obj)/, $(dtb-y)) $(Q)rm -f $(obj)/../*.dtb clean-files := *.dtb + +dtbs_install: $(addsuffix _dtbinst_, $(dtb-y)) diff --git a/arch/arm/mach-mvebu/Kconfig b/arch/arm/mach-mvebu/Kconfig index 5e269d7263ce..df9e7d270810 100644 --- a/arch/arm/mach-mvebu/Kconfig +++ b/arch/arm/mach-mvebu/Kconfig @@ -16,6 +16,7 @@ config ARCH_MVEBU select ARCH_REQUIRE_GPIOLIB select MIGHT_HAVE_PCI select PCI_QUIRKS if PCI + select OF_ADDRESS_PCI if ARCH_MVEBU diff --git a/arch/arm/mach-omap2/Kconfig b/arch/arm/mach-omap2/Kconfig index 6fb91fb604a0..ac4882511749 100644 --- a/arch/arm/mach-omap2/Kconfig +++ b/arch/arm/mach-omap2/Kconfig @@ -102,7 +102,6 @@ config ARCH_OMAP2PLUS select MACH_OMAP_GENERIC select OMAP_DM_TIMER select PINCTRL - select PROC_DEVICETREE if PROC_FS select SOC_BUS select SPARSE_IRQ select TI_PRIV_EDMA diff --git a/arch/arm/mm/init.c b/arch/arm/mm/init.c index 804d61566a53..2a77ba8796ae 100644 --- a/arch/arm/mm/init.c +++ b/arch/arm/mm/init.c @@ -323,6 +323,8 @@ void __init arm_memblock_init(struct meminfo *mi, if (mdesc->reserve) mdesc->reserve(); + early_init_fdt_scan_reserved_mem(); + /* * reserve memory for DMA contigouos allocations, * must come from DMA area inside low memory diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 8033b9b8a2df..9711a5fd948d 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -47,6 +47,7 @@ config ARM64 select NO_BOOTMEM select OF select OF_EARLY_FLATTREE + select OF_RESERVED_MEM select PERF_USE_VMALLOC select POWER_RESET select POWER_SUPPLY diff --git a/arch/arm64/mm/init.c b/arch/arm64/mm/init.c index 88627c450a6c..51d5352e6ad5 100644 --- a/arch/arm64/mm/init.c +++ b/arch/arm64/mm/init.c @@ -161,6 +161,7 @@ void __init arm64_memblock_init(void) memblock_reserve(base, size); } + early_init_fdt_scan_reserved_mem(); dma_contiguous_reserve(0); memblock_allow_resize(); diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index f3d7846bc9b2..6c03a94991ad 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -90,6 +90,7 @@ config PPC select BINFMT_ELF select OF select OF_EARLY_FLATTREE + select OF_RESERVED_MEM select HAVE_FTRACE_MCOUNT_RECORD select HAVE_DYNAMIC_FTRACE select HAVE_FUNCTION_TRACER diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c index d711b7eb05aa..dd72bebd708a 100644 --- a/arch/powerpc/kernel/prom.c +++ b/arch/powerpc/kernel/prom.c @@ -33,6 +33,7 @@ #include <linux/irq.h> #include <linux/memblock.h> #include <linux/of.h> +#include <linux/of_fdt.h> #include <asm/prom.h> #include <asm/rtas.h> @@ -588,6 +589,8 @@ static void __init early_reserve_mem_dt(void) memblock_reserve(base, size); } } + + early_init_fdt_scan_reserved_mem(); } static void __init early_reserve_mem(void) diff --git a/arch/powerpc/platforms/pseries/dlpar.c b/arch/powerpc/platforms/pseries/dlpar.c index a8fe5aa3d34f..022b38e6a80b 100644 --- a/arch/powerpc/platforms/pseries/dlpar.c +++ b/arch/powerpc/platforms/pseries/dlpar.c @@ -11,7 +11,6 @@ */ #include <linux/kernel.h> -#include <linux/kref.h> #include <linux/notifier.h> #include <linux/spinlock.h> #include <linux/cpu.h> @@ -87,7 +86,6 @@ static struct device_node *dlpar_parse_cc_node(struct cc_workarea *ccwa, } of_node_set_flag(dn, OF_DYNAMIC); - kref_init(&dn->kref); return dn; } diff --git a/arch/powerpc/platforms/pseries/reconfig.c b/arch/powerpc/platforms/pseries/reconfig.c index f93cdf55628c..0435bb65d0aa 100644 --- a/arch/powerpc/platforms/pseries/reconfig.c +++ b/arch/powerpc/platforms/pseries/reconfig.c @@ -12,7 +12,6 @@ */ #include <linux/kernel.h> -#include <linux/kref.h> #include <linux/notifier.h> #include <linux/proc_fs.h> #include <linux/slab.h> @@ -70,7 +69,6 @@ static int pSeries_reconfig_add_node(const char *path, struct property *proplist np->properties = proplist; of_node_set_flag(np, OF_DYNAMIC); - kref_init(&np->kref); np->parent = derive_parent(path); if (IS_ERR(np->parent)) { diff --git a/arch/powerpc/sysdev/msi_bitmap.c b/arch/powerpc/sysdev/msi_bitmap.c index 0968b66b4cf9..8ba60424be95 100644 --- a/arch/powerpc/sysdev/msi_bitmap.c +++ b/arch/powerpc/sysdev/msi_bitmap.c @@ -202,7 +202,7 @@ void __init test_of_node(void) /* There should really be a struct device_node allocator */ memset(&of_node, 0, sizeof(of_node)); - kref_init(&of_node.kref); + kref_init(&of_node.kobj.kref); of_node.full_name = node_name; check(0 == msi_bitmap_alloc(&bmp, size, &of_node)); diff --git a/drivers/of/Kconfig b/drivers/of/Kconfig index c6973f101a3e..889005fa4d04 100644 --- a/drivers/of/Kconfig +++ b/drivers/of/Kconfig @@ -7,14 +7,6 @@ config OF menu "Device Tree and Open Firmware support" depends on OF -config PROC_DEVICETREE - bool "Support for device tree in /proc" - depends on PROC_FS && !SPARC - help - This option adds a device-tree directory under /proc which contains - an image of the device tree that the kernel copies from Open - Firmware or other boot firmware. If unsure, say Y here. - config OF_SELFTEST bool "Device Tree Runtime self tests" depends on OF_IRQ @@ -44,6 +36,10 @@ config OF_DYNAMIC config OF_ADDRESS def_bool y depends on !SPARC + select OF_ADDRESS_PCI if PCI + +config OF_ADDRESS_PCI + bool config OF_IRQ def_bool y @@ -75,4 +71,10 @@ config OF_MTD depends on MTD def_bool y +config OF_RESERVED_MEM + depends on OF_EARLY_FLATTREE + bool + help + Helpers to allow for reservation of memory regions + endmenu # OF diff --git a/drivers/of/Makefile b/drivers/of/Makefile index efd05102c405..ed9660adad77 100644 --- a/drivers/of/Makefile +++ b/drivers/of/Makefile @@ -9,3 +9,4 @@ obj-$(CONFIG_OF_MDIO) += of_mdio.o obj-$(CONFIG_OF_PCI) += of_pci.o obj-$(CONFIG_OF_PCI_IRQ) += of_pci_irq.o obj-$(CONFIG_OF_MTD) += of_mtd.o +obj-$(CONFIG_OF_RESERVED_MEM) += of_reserved_mem.o diff --git a/drivers/of/address.c b/drivers/of/address.c index 1a54f1ffaadb..cb4242a69cd5 100644 --- a/drivers/of/address.c +++ b/drivers/of/address.c @@ -91,7 +91,7 @@ static unsigned int of_bus_default_get_flags(const __be32 *addr) return IORESOURCE_MEM; } -#ifdef CONFIG_PCI +#ifdef CONFIG_OF_ADDRESS_PCI /* * PCI bus specific translator */ @@ -166,7 +166,9 @@ static int of_bus_pci_translate(__be32 *addr, u64 offset, int na) { return of_bus_default_translate(addr + 1, offset, na - 1); } +#endif /* CONFIG_OF_ADDRESS_PCI */ +#ifdef CONFIG_PCI const __be32 *of_get_pci_address(struct device_node *dev, int bar_no, u64 *size, unsigned int *flags) { @@ -356,7 +358,7 @@ static unsigned int of_bus_isa_get_flags(const __be32 *addr) */ static struct of_bus of_busses[] = { -#ifdef CONFIG_PCI +#ifdef CONFIG_OF_ADDRESS_PCI /* PCI */ { .name = "pci", @@ -367,7 +369,7 @@ static struct of_bus of_busses[] = { .translate = of_bus_pci_translate, .get_flags = of_bus_pci_get_flags, }, -#endif /* CONFIG_PCI */ +#endif /* CONFIG_OF_ADDRESS_PCI */ /* ISA */ { .name = "isa", diff --git a/drivers/of/base.c b/drivers/of/base.c index 5f81bfea5246..4557a142c752 100644 --- a/drivers/of/base.c +++ b/drivers/of/base.c @@ -24,6 +24,7 @@ #include <linux/of_graph.h> #include <linux/spinlock.h> #include <linux/slab.h> +#include <linux/string.h> #include <linux/proc_fs.h> #include "of_private.h" @@ -36,6 +37,12 @@ struct device_node *of_chosen; struct device_node *of_aliases; static struct device_node *of_stdout; +static struct kset *of_kset; + +/* + * Used to protect the of_aliases; but also overloaded to hold off addition of + * nodes to sysfs + */ DEFINE_MUTEX(of_aliases_mutex); /* use when traversing tree through the allnext, child, sibling, @@ -93,14 +100,14 @@ int __weak of_node_to_nid(struct device_node *np) struct device_node *of_node_get(struct device_node *node) { if (node) - kref_get(&node->kref); + kobject_get(&node->kobj); return node; } EXPORT_SYMBOL(of_node_get); -static inline struct device_node *kref_to_device_node(struct kref *kref) +static inline struct device_node *kobj_to_device_node(struct kobject *kobj) { - return container_of(kref, struct device_node, kref); + return container_of(kobj, struct device_node, kobj); } /** @@ -110,16 +117,15 @@ static inline struct device_node *kref_to_device_node(struct kref *kref) * In of_node_put() this function is passed to kref_put() * as the destructor. */ -static void of_node_release(struct kref *kref) +static void of_node_release(struct kobject *kobj) { - struct device_node *node = kref_to_device_node(kref); + struct device_node *node = kobj_to_device_node(kobj); struct property *prop = node->properties; /* We should never be releasing nodes that haven't been detached. */ if (!of_node_check_flag(node, OF_DETACHED)) { pr_err("ERROR: Bad of_node_put() on %s\n", node->full_name); dump_stack(); - kref_init(&node->kref); return; } @@ -152,11 +158,154 @@ static void of_node_release(struct kref *kref) void of_node_put(struct device_node *node) { if (node) - kref_put(&node->kref, of_node_release); + kobject_put(&node->kobj); } EXPORT_SYMBOL(of_node_put); +#else +static void of_node_release(struct kobject *kobj) +{ + /* Without CONFIG_OF_DYNAMIC, no nodes gets freed */ +} #endif /* CONFIG_OF_DYNAMIC */ +struct kobj_type of_node_ktype = { + .release = of_node_release, +}; + +static ssize_t of_node_property_read(struct file *filp, struct kobject *kobj, + struct bin_attribute *bin_attr, char *buf, + loff_t offset, size_t count) +{ + struct property *pp = container_of(bin_attr, struct property, attr); + return memory_read_from_buffer(buf, count, &offset, pp->value, pp->length); +} + +static const char *safe_name(struct kobject *kobj, const char *orig_name) +{ + const char *name = orig_name; + struct kernfs_node *kn; + int i = 0; + + /* don't be a hero. After 16 tries give up */ + while (i < 16 && (kn = sysfs_get_dirent(kobj->sd, name))) { + sysfs_put(kn); + if (name != orig_name) + kfree(name); + name = kasprintf(GFP_KERNEL, "%s#%i", orig_name, ++i); + } + + if (name != orig_name) + pr_warn("device-tree: Duplicate name in %s, renamed to \"%s\"\n", + kobject_name(kobj), name); + return name; +} + +static int __of_add_property_sysfs(struct device_node *np, struct property *pp) +{ + int rc; + + /* Important: Don't leak passwords */ + bool secure = strncmp(pp->name, "security-", 9) == 0; + + sysfs_bin_attr_init(&pp->attr); + pp->attr.attr.name = safe_name(&np->kobj, pp->name); + pp->attr.attr.mode = secure ? S_IRUSR : S_IRUGO; + pp->attr.size = secure ? 0 : pp->length; + pp->attr.read = of_node_property_read; + + rc = sysfs_create_bin_file(&np->kobj, &pp->attr); + WARN(rc, "error adding attribute %s to node %s\n", pp->name, np->full_name); + return rc; +} + +static int __of_node_add(struct device_node *np) +{ + const char *name; + struct property *pp; + int rc; + + np->kobj.kset = of_kset; + if (!np->parent) { + /* Nodes without parents are new top level trees */ + rc = kobject_add(&np->kobj, NULL, safe_name(&of_kset->kobj, "base")); + } else { + name = safe_name(&np->parent->kobj, kbasename(np->full_name)); + if (!name || !name[0]) + return -EINVAL; + + rc = kobject_add(&np->kobj, &np->parent->kobj, "%s", name); + } + if (rc) + return rc; + + for_each_property_of_node(np, pp) + __of_add_property_sysfs(np, pp); + + return 0; +} + +int of_node_add(struct device_node *np) +{ + int rc = 0; + + BUG_ON(!of_node_is_initialized(np)); + + /* + * Grab the mutex here so that in a race condition between of_init() and + * of_node_add(), node addition will still be consistent. + */ + mutex_lock(&of_aliases_mutex); + if (of_kset) + rc = __of_node_add(np); + else + /* This scenario may be perfectly valid, but report it anyway */ + pr_info("of_node_add(%s) before of_init()\n", np->full_name); + mutex_unlock(&of_aliases_mutex); + return rc; +} + +#if defined(CONFIG_OF_DYNAMIC) +static void of_node_remove(struct device_node *np) +{ + struct property *pp; + + BUG_ON(!of_node_is_initialized(np)); + + /* only remove properties if on sysfs */ + if (of_node_is_attached(np)) { + for_each_property_of_node(np, pp) + sysfs_remove_bin_file(&np->kobj, &pp->attr); + kobject_del(&np->kobj); + } + + /* finally remove the kobj_init ref */ + of_node_put(np); +} +#endif + +static int __init of_init(void) +{ + struct device_node *np; + + /* Create the kset, and register existing nodes */ + mutex_lock(&of_aliases_mutex); + of_kset = kset_create_and_add("devicetree", NULL, firmware_kobj); + if (!of_kset) { + mutex_unlock(&of_aliases_mutex); + return -ENOMEM; + } + for_each_of_allnodes(np) + __of_node_add(np); + mutex_unlock(&of_aliases_mutex); + + /* Symlink in /proc as required by userspace ABI */ + if (of_allnodes) + proc_symlink("device-tree", NULL, "/sys/firmware/devicetree/base"); + + return 0; +} +core_initcall(of_init); + static struct property *__of_find_property(const struct device_node *np, const char *name, int *lenp) { @@ -1531,6 +1680,10 @@ static int of_property_notify(int action, struct device_node *np, { struct of_prop_reconfig pr; + /* only call notifiers if the node is attached */ + if (!of_node_is_attached(np)) + return 0; + pr.dn = np; pr.prop = prop; return of_reconfig_notify(action, &pr); @@ -1544,11 +1697,31 @@ static int of_property_notify(int action, struct device_node *np, #endif /** + * __of_add_property - Add a property to a node without lock operations + */ +static int __of_add_property(struct device_node *np, struct property *prop) +{ + struct property **next; + + prop->next = NULL; + next = &np->properties; + while (*next) { + if (strcmp(prop->name, (*next)->name) == 0) + /* duplicate ! don't insert it */ + return -EEXIST; + + next = &(*next)->next; + } + *next = prop; + + return 0; +} + +/** * of_add_property - Add a property to a node */ int of_add_property(struct device_node *np, struct property *prop) { - struct property **next; unsigned long flags; int rc; @@ -1556,27 +1729,16 @@ int of_add_property(struct device_node *np, struct property *prop) if (rc) return rc; - prop->next = NULL; raw_spin_lock_irqsave(&devtree_lock, flags); - next = &np->properties; - while (*next) { - if (strcmp(prop->name, (*next)->name) == 0) { - /* duplicate ! don't insert it */ - raw_spin_unlock_irqrestore(&devtree_lock, flags); - return -1; - } - next = &(*next)->next; - } - *next = prop; + rc = __of_add_property(np, prop); raw_spin_unlock_irqrestore(&devtree_lock, flags); + if (rc) + return rc; -#ifdef CONFIG_PROC_DEVICETREE - /* try to add to proc as well if it was initialized */ - if (np->pde) - proc_device_tree_add_prop(np->pde, prop); -#endif /* CONFIG_PROC_DEVICETREE */ + if (of_node_is_attached(np)) + __of_add_property_sysfs(np, prop); - return 0; + return rc; } /** @@ -1616,11 +1778,11 @@ int of_remove_property(struct device_node *np, struct property *prop) if (!found) return -ENODEV; -#ifdef CONFIG_PROC_DEVICETREE - /* try to remove the proc node as well */ - if (np->pde) - proc_device_tree_remove_prop(np->pde, prop); -#endif /* CONFIG_PROC_DEVICETREE */ + /* at early boot, bail hear and defer setup to of_init() */ + if (!of_kset) + return 0; + + sysfs_remove_bin_file(&np->kobj, &prop->attr); return 0; } @@ -1666,16 +1828,17 @@ int of_update_property(struct device_node *np, struct property *newprop) next = &(*next)->next; } raw_spin_unlock_irqrestore(&devtree_lock, flags); + if (rc) + return rc; + + /* Update the sysfs attribute */ + if (oldprop) + sysfs_remove_bin_file(&np->kobj, &oldprop->attr); + __of_add_property_sysfs(np, newprop); if (!found) return -ENODEV; -#ifdef CONFIG_PROC_DEVICETREE - /* try to add to proc as well if it was initialized */ - if (np->pde) - proc_device_tree_update_prop(np->pde, newprop, oldprop); -#endif /* CONFIG_PROC_DEVICETREE */ - return 0; } @@ -1710,22 +1873,6 @@ int of_reconfig_notify(unsigned long action, void *p) return notifier_to_errno(rc); } -#ifdef CONFIG_PROC_DEVICETREE -static void of_add_proc_dt_entry(struct device_node *dn) -{ - struct proc_dir_entry *ent; - - ent = proc_mkdir(strrchr(dn->full_name, '/') + 1, dn->parent->pde); - if (ent) - proc_device_tree_add_node(dn, ent); -} -#else -static void of_add_proc_dt_entry(struct device_node *dn) -{ - return; -} -#endif - /** * of_attach_node - Plug a device node into the tree and global list. */ @@ -1743,24 +1890,13 @@ int of_attach_node(struct device_node *np) np->allnext = of_allnodes; np->parent->child = np; of_allnodes = np; + of_node_clear_flag(np, OF_DETACHED); raw_spin_unlock_irqrestore(&devtree_lock, flags); - of_add_proc_dt_entry(np); + of_node_add(np); return 0; } -#ifdef CONFIG_PROC_DEVICETREE -static void of_remove_proc_dt_entry(struct device_node *dn) -{ - proc_remove(dn->pde); -} -#else -static void of_remove_proc_dt_entry(struct device_node *dn) -{ - return; -} -#endif - /** * of_detach_node - "Unplug" a node from the device tree. * @@ -1816,7 +1952,7 @@ int of_detach_node(struct device_node *np) of_node_set_flag(np, OF_DETACHED); raw_spin_unlock_irqrestore(&devtree_lock, flags); - of_remove_proc_dt_entry(np); + of_node_remove(np); return rc; } #endif /* defined(CONFIG_OF_DYNAMIC) */ @@ -1852,9 +1988,9 @@ void of_alias_scan(void * (*dt_alloc)(u64 size, u64 align)) of_chosen = of_find_node_by_path("/chosen@0"); if (of_chosen) { - const char *name; - - name = of_get_property(of_chosen, "linux,stdout-path", NULL); + const char *name = of_get_property(of_chosen, "stdout-path", NULL); + if (!name) + name = of_get_property(of_chosen, "linux,stdout-path", NULL); if (name) of_stdout = of_find_node_by_path(name); } diff --git a/drivers/of/fdt.c b/drivers/of/fdt.c index 758b4f8b30b7..fa16a912a927 100644 --- a/drivers/of/fdt.c +++ b/drivers/of/fdt.c @@ -15,6 +15,8 @@ #include <linux/module.h> #include <linux/of.h> #include <linux/of_fdt.h> +#include <linux/of_reserved_mem.h> +#include <linux/sizes.h> #include <linux/string.h> #include <linux/errno.h> #include <linux/slab.h> @@ -202,6 +204,7 @@ static void * unflatten_dt_node(struct boot_param_header *blob, __alignof__(struct device_node)); if (allnextpp) { char *fn; + of_node_init(np); np->full_name = fn = ((char *)np) + sizeof(*np); if (new_format) { /* rebuild full path for new format */ @@ -232,7 +235,6 @@ static void * unflatten_dt_node(struct boot_param_header *blob, dad->next->sibling = np; dad->next = np; } - kref_init(&np->kref); } /* process properties */ while (1) { @@ -440,6 +442,129 @@ struct boot_param_header *initial_boot_params; #ifdef CONFIG_OF_EARLY_FLATTREE /** + * res_mem_reserve_reg() - reserve all memory described in 'reg' property + */ +static int __init __reserved_mem_reserve_reg(unsigned long node, + const char *uname) +{ + int t_len = (dt_root_addr_cells + dt_root_size_cells) * sizeof(__be32); + phys_addr_t base, size; + unsigned long len; + __be32 *prop; + int nomap, first = 1; + + prop = of_get_flat_dt_prop(node, "reg", &len); + if (!prop) + return -ENOENT; + + if (len && len % t_len != 0) { + pr_err("Reserved memory: invalid reg property in '%s', skipping node.\n", + uname); + return -EINVAL; + } + + nomap = of_get_flat_dt_prop(node, "no-map", NULL) != NULL; + + while (len >= t_len) { + base = dt_mem_next_cell(dt_root_addr_cells, &prop); + size = dt_mem_next_cell(dt_root_size_cells, &prop); + + if (base && size && + early_init_dt_reserve_memory_arch(base, size, nomap) == 0) + pr_debug("Reserved memory: reserved region for node '%s': base %pa, size %ld MiB\n", + uname, &base, (unsigned long)size / SZ_1M); + else + pr_info("Reserved memory: failed to reserve memory for node '%s': base %pa, size %ld MiB\n", + uname, &base, (unsigned long)size / SZ_1M); + + len -= t_len; + if (first) { + fdt_reserved_mem_save_node(node, uname, base, size); + first = 0; + } + } + return 0; +} + +/** + * __reserved_mem_check_root() - check if #size-cells, #address-cells provided + * in /reserved-memory matches the values supported by the current implementation, + * also check if ranges property has been provided + */ +static int __reserved_mem_check_root(unsigned long node) +{ + __be32 *prop; + + prop = of_get_flat_dt_prop(node, "#size-cells", NULL); + if (!prop || be32_to_cpup(prop) != dt_root_size_cells) + return -EINVAL; + + prop = of_get_flat_dt_prop(node, "#address-cells", NULL); + if (!prop || be32_to_cpup(prop) != dt_root_addr_cells) + return -EINVAL; + + prop = of_get_flat_dt_prop(node, "ranges", NULL); + if (!prop) + return -EINVAL; + return 0; +} + +/** + * fdt_scan_reserved_mem() - scan a single FDT node for reserved memory + */ +static int __init __fdt_scan_reserved_mem(unsigned long node, const char *uname, + int depth, void *data) +{ + static int found; + const char *status; + int err; + + if (!found && depth == 1 && strcmp(uname, "reserved-memory") == 0) { + if (__reserved_mem_check_root(node) != 0) { + pr_err("Reserved memory: unsupported node format, ignoring\n"); + /* break scan */ + return 1; + } + found = 1; + /* scan next node */ + return 0; + } else if (!found) { + /* scan next node */ + return 0; + } else if (found && depth < 2) { + /* scanning of /reserved-memory has been finished */ + return 1; + } + + status = of_get_flat_dt_prop(node, "status", NULL); + if (status && strcmp(status, "okay") != 0 && strcmp(status, "ok") != 0) + return 0; + + err = __reserved_mem_reserve_reg(node, uname); + if (err == -ENOENT && of_get_flat_dt_prop(node, "size", NULL)) + fdt_reserved_mem_save_node(node, uname, 0, 0); + + /* scan next node */ + return 0; +} + +/** + * early_init_fdt_scan_reserved_mem() - create reserved memory regions + * + * This function grabs memory from early allocator for device exclusive use + * defined in device tree structures. It should be called by arch specific code + * once the early allocator (i.e. memblock) has been fully activated. + */ +void __init early_init_fdt_scan_reserved_mem(void) +{ + if (!initial_boot_params) + return; + + of_scan_flat_dt(__fdt_scan_reserved_mem, NULL); + fdt_init_reserved_mem(); +} + +/** * of_scan_flat_dt - scan flattened tree blob and call callback on each. * @it: callback function * @data: context data pointer @@ -856,6 +981,16 @@ void __init __weak early_init_dt_add_memory_arch(u64 base, u64 size) memblock_add(base, size); } +int __init __weak early_init_dt_reserve_memory_arch(phys_addr_t base, + phys_addr_t size, bool nomap) +{ + if (memblock_is_region_reserved(base, size)) + return -EBUSY; + if (nomap) + return memblock_remove(base, size); + return memblock_reserve(base, size); +} + /* * called from unflatten_device_tree() to bootstrap devicetree itself * Architectures can override this definition if memblock isn't used @@ -864,6 +999,14 @@ void * __init __weak early_init_dt_alloc_memory_arch(u64 size, u64 align) { return __va(memblock_alloc(size, align)); } +#else +int __init __weak early_init_dt_reserve_memory_arch(phys_addr_t base, + phys_addr_t size, bool nomap) +{ + pr_err("Reserved memory not supported, ignoring range 0x%llx - 0x%llx%s\n", + base, size, nomap ? " (nomap)" : ""); + return -ENOSYS; +} #endif bool __init early_init_dt_scan(void *params) diff --git a/drivers/of/of_net.c b/drivers/of/of_net.c index a208a457558c..a3df3428dac6 100644 --- a/drivers/of/of_net.c +++ b/drivers/of/of_net.c @@ -13,8 +13,8 @@ /** * It maps 'enum phy_interface_t' found in include/linux/phy.h - * into the device tree binding of 'phy-mode', so that Ethernet - * device driver can get phy interface from device tree. + * into the device tree binding of 'phy-mode' or 'phy-connection-type', + * so that Ethernet device driver can get phy interface from device tree. */ static const char *phy_modes[] = { [PHY_INTERFACE_MODE_NA] = "", @@ -37,8 +37,9 @@ static const char *phy_modes[] = { * of_get_phy_mode - Get phy mode for given device_node * @np: Pointer to the given device_node * - * The function gets phy interface string from property 'phy-mode', - * and return its index in phy_modes table, or errno in error case. + * The function gets phy interface string from property 'phy-mode' or + * 'phy-connection-type', and return its index in phy_modes table, or errno in + * error case. */ int of_get_phy_mode(struct device_node *np) { @@ -47,6 +48,8 @@ int of_get_phy_mode(struct device_node *np) err = of_property_read_string(np, "phy-mode", &pm); if (err < 0) + err = of_property_read_string(np, "phy-connection-type", &pm); + if (err < 0) return err; for (i = 0; i < ARRAY_SIZE(phy_modes); i++) diff --git a/drivers/of/of_reserved_mem.c b/drivers/of/of_reserved_mem.c new file mode 100644 index 000000000000..daaaf935911d --- /dev/null +++ b/drivers/of/of_reserved_mem.c @@ -0,0 +1,217 @@ +/* + * Device tree based initialization code for reserved memory. + * + * Copyright (c) 2013, The Linux Foundation. All Rights Reserved. + * Copyright (c) 2013,2014 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * Author: Marek Szyprowski <m.szyprowski@samsung.com> + * Author: Josh Cartwright <joshc@codeaurora.org> + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of the + * License or (at your optional) any later version of the license. + */ + +#include <linux/err.h> +#include <linux/of.h> +#include <linux/of_fdt.h> +#include <linux/of_platform.h> +#include <linux/mm.h> +#include <linux/sizes.h> +#include <linux/of_reserved_mem.h> + +#define MAX_RESERVED_REGIONS 16 +static struct reserved_mem reserved_mem[MAX_RESERVED_REGIONS]; +static int reserved_mem_count; + +#if defined(CONFIG_HAVE_MEMBLOCK) +#include <linux/memblock.h> +int __init __weak early_init_dt_alloc_reserved_memory_arch(phys_addr_t size, + phys_addr_t align, phys_addr_t start, phys_addr_t end, bool nomap, + phys_addr_t *res_base) +{ + /* + * We use __memblock_alloc_base() because memblock_alloc_base() + * panic()s on allocation failure. + */ + phys_addr_t base = __memblock_alloc_base(size, align, end); + if (!base) + return -ENOMEM; + + /* + * Check if the allocated region fits in to start..end window + */ + if (base < start) { + memblock_free(base, size); + return -ENOMEM; + } + + *res_base = base; + if (nomap) + return memblock_remove(base, size); + return 0; +} +#else +int __init __weak early_init_dt_alloc_reserved_memory_arch(phys_addr_t size, + phys_addr_t align, phys_addr_t start, phys_addr_t end, bool nomap, + phys_addr_t *res_base) +{ + pr_err("Reserved memory not supported, ignoring region 0x%llx%s\n", + size, nomap ? " (nomap)" : ""); + return -ENOSYS; +} +#endif + +/** + * res_mem_save_node() - save fdt node for second pass initialization + */ +void __init fdt_reserved_mem_save_node(unsigned long node, const char *uname, + phys_addr_t base, phys_addr_t size) +{ + struct reserved_mem *rmem = &reserved_mem[reserved_mem_count]; + + if (reserved_mem_count == ARRAY_SIZE(reserved_mem)) { + pr_err("Reserved memory: not enough space all defined regions.\n"); + return; + } + + rmem->fdt_node = node; + rmem->name = uname; + rmem->base = base; + rmem->size = size; + + reserved_mem_count++; + return; +} + +/** + * res_mem_alloc_size() - allocate reserved memory described by 'size', 'align' + * and 'alloc-ranges' properties + */ +static int __init __reserved_mem_alloc_size(unsigned long node, + const char *uname, phys_addr_t *res_base, phys_addr_t *res_size) +{ + int t_len = (dt_root_addr_cells + dt_root_size_cells) * sizeof(__be32); + phys_addr_t start = 0, end = 0; + phys_addr_t base = 0, align = 0, size; + unsigned long len; + __be32 *prop; + int nomap; + int ret; + + prop = of_get_flat_dt_prop(node, "size", &len); + if (!prop) + return -EINVAL; + + if (len != dt_root_size_cells * sizeof(__be32)) { + pr_err("Reserved memory: invalid size property in '%s' node.\n", + uname); + return -EINVAL; + } + size = dt_mem_next_cell(dt_root_size_cells, &prop); + + nomap = of_get_flat_dt_prop(node, "no-map", NULL) != NULL; + + prop = of_get_flat_dt_prop(node, "alignment", &len); + if (prop) { + if (len != dt_root_addr_cells * sizeof(__be32)) { + pr_err("Reserved memory: invalid alignment property in '%s' node.\n", + uname); + return -EINVAL; + } + align = dt_mem_next_cell(dt_root_addr_cells, &prop); + } + + prop = of_get_flat_dt_prop(node, "alloc-ranges", &len); + if (prop) { + + if (len % t_len != 0) { + pr_err("Reserved memory: invalid alloc-ranges property in '%s', skipping node.\n", + uname); + return -EINVAL; + } + + base = 0; + + while (len > 0) { + start = dt_mem_next_cell(dt_root_addr_cells, &prop); + end = start + dt_mem_next_cell(dt_root_size_cells, + &prop); + + ret = early_init_dt_alloc_reserved_memory_arch(size, + align, start, end, nomap, &base); + if (ret == 0) { + pr_debug("Reserved memory: allocated memory for '%s' node: base %pa, size %ld MiB\n", + uname, &base, + (unsigned long)size / SZ_1M); + break; + } + len -= t_len; + } + + } else { + ret = early_init_dt_alloc_reserved_memory_arch(size, align, + 0, 0, nomap, &base); + if (ret == 0) + pr_debug("Reserved memory: allocated memory for '%s' node: base %pa, size %ld MiB\n", + uname, &base, (unsigned long)size / SZ_1M); + } + + if (base == 0) { + pr_info("Reserved memory: failed to allocate memory for node '%s'\n", + uname); + return -ENOMEM; + } + + *res_base = base; + *res_size = size; + + return 0; +} + +static const struct of_device_id __rmem_of_table_sentinel + __used __section(__reservedmem_of_table_end); + +/** + * res_mem_init_node() - call region specific reserved memory init code + */ +static int __init __reserved_mem_init_node(struct reserved_mem *rmem) +{ + extern const struct of_device_id __reservedmem_of_table[]; + const struct of_device_id *i; + + for (i = __reservedmem_of_table; i < &__rmem_of_table_sentinel; i++) { + reservedmem_of_init_fn initfn = i->data; + const char *compat = i->compatible; + + if (!of_flat_dt_is_compatible(rmem->fdt_node, compat)) + continue; + + if (initfn(rmem, rmem->fdt_node, rmem->name) == 0) { + pr_info("Reserved memory: initialized node %s, compatible id %s\n", + rmem->name, compat); + return 0; + } + } + return -ENOENT; +} + +/** + * fdt_init_reserved_mem - allocate and init all saved reserved memory regions + */ +void __init fdt_init_reserved_mem(void) +{ + int i; + for (i = 0; i < reserved_mem_count; i++) { + struct reserved_mem *rmem = &reserved_mem[i]; + unsigned long node = rmem->fdt_node; + int err = 0; + + if (rmem->size == 0) + err = __reserved_mem_alloc_size(node, rmem->name, + &rmem->base, &rmem->size); + if (err == 0) + __reserved_mem_init_node(rmem); + } +} diff --git a/drivers/of/pdt.c b/drivers/of/pdt.c index 7b666736c168..36b4035881b0 100644 --- a/drivers/of/pdt.c +++ b/drivers/of/pdt.c @@ -176,11 +176,10 @@ static struct device_node * __init of_pdt_create_node(phandle node, return NULL; dp = prom_early_alloc(sizeof(*dp)); + of_node_init(dp); of_pdt_incr_unique_id(dp); dp->parent = parent; - kref_init(&dp->kref); - dp->name = of_pdt_get_one_property(node, "name"); dp->type = of_pdt_get_one_property(node, "device_type"); dp->phandle = node; diff --git a/drivers/of/selftest.c b/drivers/of/selftest.c index 6643d1920985..ae4450070503 100644 --- a/drivers/of/selftest.c +++ b/drivers/of/selftest.c @@ -30,6 +30,67 @@ static struct selftest_results { } \ } +static void __init of_selftest_dynamic(void) +{ + struct device_node *np; + struct property *prop; + + np = of_find_node_by_path("/testcase-data"); + if (!np) { + pr_err("missing testcase data\n"); + return; + } + + /* Array of 4 properties for the purpose of testing */ + prop = kzalloc(sizeof(*prop) * 4, GFP_KERNEL); + if (!prop) { + selftest(0, "kzalloc() failed\n"); + return; + } + + /* Add a new property - should pass*/ + prop->name = "new-property"; + prop->value = "new-property-data"; + prop->length = strlen(prop->value); + selftest(of_add_property(np, prop) == 0, "Adding a new property failed\n"); + + /* Try to add an existing property - should fail */ + prop++; + prop->name = "new-property"; + prop->value = "new-property-data-should-fail"; + prop->length = strlen(prop->value); + selftest(of_add_property(np, prop) != 0, + "Adding an existing property should have failed\n"); + + /* Try to modify an existing property - should pass */ + prop->value = "modify-property-data-should-pass"; + prop->length = strlen(prop->value); + selftest(of_update_property(np, prop) == 0, + "Updating an existing property should have passed\n"); + + /* Try to modify non-existent property - should pass*/ + prop++; + prop->name = "modify-property"; + prop->value = "modify-missing-property-data-should-pass"; + prop->length = strlen(prop->value); + selftest(of_update_property(np, prop) == 0, + "Updating a missing property should have passed\n"); + + /* Remove property - should pass */ + selftest(of_remove_property(np, prop) == 0, + "Removing a property should have passed\n"); + + /* Adding very large property - should pass */ + prop++; + prop->name = "large-property-PAGE_SIZEx8"; + prop->length = PAGE_SIZE * 8; + prop->value = kzalloc(prop->length, GFP_KERNEL); + selftest(prop->value != NULL, "Unable to allocate large buffer\n"); + if (prop->value) + selftest(of_add_property(np, prop) == 0, + "Adding a large property should have passed\n"); +} + static void __init of_selftest_parse_phandle_with_args(void) { struct device_node *np; @@ -378,6 +439,7 @@ static int __init of_selftest(void) of_node_put(np); pr_info("start of selftest - you will see error messages\n"); + of_selftest_dynamic(); of_selftest_parse_phandle_with_args(); of_selftest_property_match_string(); of_selftest_parse_interrupts(); diff --git a/drivers/of/testcase-data/tests-phandle.dtsi b/drivers/of/testcase-data/tests-phandle.dtsi index 0007d3cd7dc2..788a4c24b8f5 100644 --- a/drivers/of/testcase-data/tests-phandle.dtsi +++ b/drivers/of/testcase-data/tests-phandle.dtsi @@ -1,6 +1,9 @@ / { testcase-data { + security-password = "password"; + duplicate-name = "duplicate"; + duplicate-name { }; phandle-tests { provider0: provider0 { #phandle-cells = <0>; diff --git a/fs/proc/Makefile b/fs/proc/Makefile index ab30716584f5..239493ec718e 100644 --- a/fs/proc/Makefile +++ b/fs/proc/Makefile @@ -27,6 +27,5 @@ proc-$(CONFIG_PROC_SYSCTL) += proc_sysctl.o proc-$(CONFIG_NET) += proc_net.o proc-$(CONFIG_PROC_KCORE) += kcore.o proc-$(CONFIG_PROC_VMCORE) += vmcore.o -proc-$(CONFIG_PROC_DEVICETREE) += proc_devtree.o proc-$(CONFIG_PRINTK) += kmsg.o proc-$(CONFIG_PROC_PAGE_MONITOR) += page.o diff --git a/fs/proc/internal.h b/fs/proc/internal.h index 651d09a11dde..3ab6d14e71c5 100644 --- a/fs/proc/internal.h +++ b/fs/proc/internal.h @@ -211,13 +211,6 @@ extern int proc_fill_super(struct super_block *); extern void proc_entry_rundown(struct proc_dir_entry *); /* - * proc_devtree.c - */ -#ifdef CONFIG_PROC_DEVICETREE -extern void proc_device_tree_init(void); -#endif - -/* * proc_namespaces.c */ extern const struct inode_operations proc_ns_dir_inode_operations; diff --git a/fs/proc/proc_devtree.c b/fs/proc/proc_devtree.c deleted file mode 100644 index c82dd5147845..000000000000 --- a/fs/proc/proc_devtree.c +++ /dev/null @@ -1,241 +0,0 @@ -/* - * proc_devtree.c - handles /proc/device-tree - * - * Copyright 1997 Paul Mackerras - */ -#include <linux/errno.h> -#include <linux/init.h> -#include <linux/time.h> -#include <linux/proc_fs.h> -#include <linux/seq_file.h> -#include <linux/printk.h> -#include <linux/stat.h> -#include <linux/string.h> -#include <linux/of.h> -#include <linux/export.h> -#include <linux/slab.h> -#include <asm/uaccess.h> -#include "internal.h" - -static inline void set_node_proc_entry(struct device_node *np, - struct proc_dir_entry *de) -{ - np->pde = de; -} - -static struct proc_dir_entry *proc_device_tree; - -/* - * Supply data on a read from /proc/device-tree/node/property. - */ -static int property_proc_show(struct seq_file *m, void *v) -{ - struct property *pp = m->private; - - seq_write(m, pp->value, pp->length); - return 0; -} - -static int property_proc_open(struct inode *inode, struct file *file) -{ - return single_open(file, property_proc_show, __PDE_DATA(inode)); -} - -static const struct file_operations property_proc_fops = { - .owner = THIS_MODULE, - .open = property_proc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = single_release, -}; - -/* - * For a node with a name like "gc@10", we make symlinks called "gc" - * and "@10" to it. - */ - -/* - * Add a property to a node - */ -static struct proc_dir_entry * -__proc_device_tree_add_prop(struct proc_dir_entry *de, struct property *pp, - const char *name) -{ - struct proc_dir_entry *ent; - - /* - * Unfortunately proc_register puts each new entry - * at the beginning of the list. So we rearrange them. - */ - ent = proc_create_data(name, - strncmp(name, "security-", 9) ? S_IRUGO : S_IRUSR, - de, &property_proc_fops, pp); - if (ent == NULL) - return NULL; - - if (!strncmp(name, "security-", 9)) - proc_set_size(ent, 0); /* don't leak number of password chars */ - else - proc_set_size(ent, pp->length); - - return ent; -} - - -void proc_device_tree_add_prop(struct proc_dir_entry *pde, struct property *prop) -{ - __proc_device_tree_add_prop(pde, prop, prop->name); -} - -void proc_device_tree_remove_prop(struct proc_dir_entry *pde, - struct property *prop) -{ - remove_proc_entry(prop->name, pde); -} - -void proc_device_tree_update_prop(struct proc_dir_entry *pde, - struct property *newprop, - struct property *oldprop) -{ - struct proc_dir_entry *ent; - - if (!oldprop) { - proc_device_tree_add_prop(pde, newprop); - return; - } - - for (ent = pde->subdir; ent != NULL; ent = ent->next) - if (ent->data == oldprop) - break; - if (ent == NULL) { - pr_warn("device-tree: property \"%s\" does not exist\n", - oldprop->name); - } else { - ent->data = newprop; - ent->size = newprop->length; - } -} - -/* - * Various dodgy firmware might give us nodes and/or properties with - * conflicting names. That's generally ok, except for exporting via /proc, - * so munge names here to ensure they're unique. - */ - -static int duplicate_name(struct proc_dir_entry *de, const char *name) -{ - struct proc_dir_entry *ent; - int found = 0; - - spin_lock(&proc_subdir_lock); - - for (ent = de->subdir; ent != NULL; ent = ent->next) { - if (strcmp(ent->name, name) == 0) { - found = 1; - break; - } - } - - spin_unlock(&proc_subdir_lock); - - return found; -} - -static const char *fixup_name(struct device_node *np, struct proc_dir_entry *de, - const char *name) -{ - char *fixed_name; - int fixup_len = strlen(name) + 2 + 1; /* name + #x + \0 */ - int i = 1, size; - -realloc: - fixed_name = kmalloc(fixup_len, GFP_KERNEL); - if (fixed_name == NULL) { - pr_err("device-tree: Out of memory trying to fixup " - "name \"%s\"\n", name); - return name; - } - -retry: - size = snprintf(fixed_name, fixup_len, "%s#%d", name, i); - size++; /* account for NULL */ - - if (size > fixup_len) { - /* We ran out of space, free and reallocate. */ - kfree(fixed_name); - fixup_len = size; - goto realloc; - } - - if (duplicate_name(de, fixed_name)) { - /* Multiple duplicates. Retry with a different offset. */ - i++; - goto retry; - } - - pr_warn("device-tree: Duplicate name in %s, renamed to \"%s\"\n", - np->full_name, fixed_name); - - return fixed_name; -} - -/* - * Process a node, adding entries for its children and its properties. - */ -void proc_device_tree_add_node(struct device_node *np, - struct proc_dir_entry *de) -{ - struct property *pp; - struct proc_dir_entry *ent; - struct device_node *child; - const char *p; - - set_node_proc_entry(np, de); - for (child = NULL; (child = of_get_next_child(np, child));) { - /* Use everything after the last slash, or the full name */ - p = kbasename(child->full_name); - - if (duplicate_name(de, p)) - p = fixup_name(np, de, p); - - ent = proc_mkdir(p, de); - if (ent == NULL) - break; - proc_device_tree_add_node(child, ent); - } - of_node_put(child); - - for (pp = np->properties; pp != NULL; pp = pp->next) { - p = pp->name; - - if (strchr(p, '/')) - continue; - - if (duplicate_name(de, p)) - p = fixup_name(np, de, p); - - ent = __proc_device_tree_add_prop(de, pp, p); - if (ent == NULL) - break; - } -} - -/* - * Called on initialization to set up the /proc/device-tree subtree - */ -void __init proc_device_tree_init(void) -{ - struct device_node *root; - - proc_device_tree = proc_mkdir("device-tree", NULL); - if (proc_device_tree == NULL) - return; - root = of_find_node_by_path("/"); - if (root == NULL) { - remove_proc_entry("device-tree", NULL); - pr_debug("/proc/device-tree: can't find root\n"); - return; - } - proc_device_tree_add_node(root, proc_device_tree); - of_node_put(root); -} diff --git a/fs/proc/root.c b/fs/proc/root.c index 87dbcbef7fe4..7bbeb5257af1 100644 --- a/fs/proc/root.c +++ b/fs/proc/root.c @@ -183,9 +183,6 @@ void __init proc_root_init(void) proc_mkdir("openprom", NULL); #endif proc_tty_init(); -#ifdef CONFIG_PROC_DEVICETREE - proc_device_tree_init(); -#endif proc_mkdir("bus", NULL); proc_sys_init(); } diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index bc2121fa9132..f10f64fcc815 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -167,6 +167,16 @@ #define CLK_OF_TABLES() #endif +#ifdef CONFIG_OF_RESERVED_MEM +#define RESERVEDMEM_OF_TABLES() \ + . = ALIGN(8); \ + VMLINUX_SYMBOL(__reservedmem_of_table) = .; \ + *(__reservedmem_of_table) \ + *(__reservedmem_of_table_end) +#else +#define RESERVEDMEM_OF_TABLES() +#endif + #define KERNEL_DTB() \ STRUCT_ALIGN(); \ VMLINUX_SYMBOL(__dtb_start) = .; \ @@ -490,6 +500,7 @@ TRACE_SYSCALLS() \ MEM_DISCARD(init.rodata) \ CLK_OF_TABLES() \ + RESERVEDMEM_OF_TABLES() \ CLKSRC_OF_TABLES() \ KERNEL_DTB() \ IRQCHIP_OF_MATCH_TABLE() diff --git a/include/linux/of.h b/include/linux/of.h index 83d1ac80c91e..919bf211877d 100644 --- a/include/linux/of.h +++ b/include/linux/of.h @@ -18,7 +18,7 @@ #include <linux/types.h> #include <linux/bitops.h> #include <linux/errno.h> -#include <linux/kref.h> +#include <linux/kobject.h> #include <linux/mod_devicetable.h> #include <linux/spinlock.h> #include <linux/topology.h> @@ -37,6 +37,7 @@ struct property { struct property *next; unsigned long _flags; unsigned int unique_id; + struct bin_attribute attr; }; #if defined(CONFIG_SPARC) @@ -56,8 +57,7 @@ struct device_node { struct device_node *sibling; struct device_node *next; /* next device of same type */ struct device_node *allnext; /* next in list of all nodes */ - struct proc_dir_entry *pde; /* this node's proc directory */ - struct kref kref; + struct kobject kobj; unsigned long _flags; void *data; #if defined(CONFIG_SPARC) @@ -67,13 +67,34 @@ struct device_node { #endif }; -#define MAX_PHANDLE_ARGS 8 +#define MAX_PHANDLE_ARGS 16 struct of_phandle_args { struct device_node *np; int args_count; uint32_t args[MAX_PHANDLE_ARGS]; }; +extern int of_node_add(struct device_node *node); + +/* initialize a node */ +extern struct kobj_type of_node_ktype; +static inline void of_node_init(struct device_node *node) +{ + kobject_init(&node->kobj, &of_node_ktype); +} + +/* true when node is initialized */ +static inline int of_node_is_initialized(struct device_node *node) +{ + return node && node->kobj.state_initialized; +} + +/* true when node is attached (i.e. present on sysfs) */ +static inline int of_node_is_attached(struct device_node *node) +{ + return node && node->kobj.state_in_sysfs; +} + #ifdef CONFIG_OF_DYNAMIC extern struct device_node *of_node_get(struct device_node *node); extern void of_node_put(struct device_node *node); @@ -114,6 +135,26 @@ static inline void of_node_set_flag(struct device_node *n, unsigned long flag) set_bit(flag, &n->_flags); } +static inline void of_node_clear_flag(struct device_node *n, unsigned long flag) +{ + clear_bit(flag, &n->_flags); +} + +static inline int of_property_check_flag(struct property *p, unsigned long flag) +{ + return test_bit(flag, &p->_flags); +} + +static inline void of_property_set_flag(struct property *p, unsigned long flag) +{ + set_bit(flag, &p->_flags); +} + +static inline void of_property_clear_flag(struct property *p, unsigned long flag) +{ + clear_bit(flag, &p->_flags); +} + extern struct device_node *of_find_all_nodes(struct device_node *prev); /* @@ -167,6 +208,8 @@ static inline const char *of_node_full_name(const struct device_node *np) return np ? np->full_name : "<no-node>"; } +#define for_each_of_allnodes(dn) \ + for (dn = of_allnodes; dn; dn = dn->allnext) extern struct device_node *of_find_node_by_name(struct device_node *from, const char *name); extern struct device_node *of_find_node_by_type(struct device_node *from, @@ -709,14 +752,4 @@ static inline int of_get_available_child_count(const struct device_node *np) return num; } -#if defined(CONFIG_PROC_FS) && defined(CONFIG_PROC_DEVICETREE) -extern void proc_device_tree_add_node(struct device_node *, struct proc_dir_entry *); -extern void proc_device_tree_add_prop(struct proc_dir_entry *pde, struct property *prop); -extern void proc_device_tree_remove_prop(struct proc_dir_entry *pde, - struct property *prop); -extern void proc_device_tree_update_prop(struct proc_dir_entry *pde, - struct property *newprop, - struct property *oldprop); -#endif - #endif /* _LINUX_OF_H */ diff --git a/include/linux/of_fdt.h b/include/linux/of_fdt.h index 2b77058a7335..ddd7219af8ac 100644 --- a/include/linux/of_fdt.h +++ b/include/linux/of_fdt.h @@ -98,7 +98,10 @@ extern int early_init_dt_scan_chosen(unsigned long node, const char *uname, int depth, void *data); extern int early_init_dt_scan_memory(unsigned long node, const char *uname, int depth, void *data); +extern void early_init_fdt_scan_reserved_mem(void); extern void early_init_dt_add_memory_arch(u64 base, u64 size); +extern int early_init_dt_reserve_memory_arch(phys_addr_t base, phys_addr_t size, + bool no_map); extern void * early_init_dt_alloc_memory_arch(u64 size, u64 align); extern u64 dt_mem_next_cell(int s, __be32 **cellp); @@ -118,6 +121,7 @@ extern void unflatten_and_copy_device_tree(void); extern void early_init_devtree(void *); extern void early_get_first_memblock_info(void *, phys_addr_t *); #else /* CONFIG_OF_FLATTREE */ +static inline void early_init_fdt_scan_reserved_mem(void) {} static inline const char *of_flat_dt_get_machine_name(void) { return NULL; } static inline void unflatten_device_tree(void) {} static inline void unflatten_and_copy_device_tree(void) {} diff --git a/include/linux/of_reserved_mem.h b/include/linux/of_reserved_mem.h new file mode 100644 index 000000000000..9b1fbb7f29fc --- /dev/null +++ b/include/linux/of_reserved_mem.h @@ -0,0 +1,53 @@ +#ifndef __OF_RESERVED_MEM_H +#define __OF_RESERVED_MEM_H + +struct device; +struct of_phandle_args; +struct reserved_mem_ops; + +struct reserved_mem { + const char *name; + unsigned long fdt_node; + const struct reserved_mem_ops *ops; + phys_addr_t base; + phys_addr_t size; + void *priv; +}; + +struct reserved_mem_ops { + void (*device_init)(struct reserved_mem *rmem, + struct device *dev); + void (*device_release)(struct reserved_mem *rmem, + struct device *dev); +}; + +typedef int (*reservedmem_of_init_fn)(struct reserved_mem *rmem, + unsigned long node, const char *uname); + +#ifdef CONFIG_OF_RESERVED_MEM +void fdt_init_reserved_mem(void); +void fdt_reserved_mem_save_node(unsigned long node, const char *uname, + phys_addr_t base, phys_addr_t size); + +#define RESERVEDMEM_OF_DECLARE(name, compat, init) \ + static const struct of_device_id __reservedmem_of_table_##name \ + __used __section(__reservedmem_of_table) \ + = { .compatible = compat, \ + .data = (init == (reservedmem_of_init_fn)NULL) ? \ + init : init } + +#else +static inline void fdt_init_reserved_mem(void) { } +static inline void fdt_reserved_mem_save_node(unsigned long node, + const char *uname, phys_addr_t base, phys_addr_t size) { } + +#define RESERVEDMEM_OF_DECLARE(name, compat, init) \ + static const struct of_device_id __reservedmem_of_table_##name \ + __attribute__((unused)) \ + = { .compatible = compat, \ + .data = (init == (reservedmem_of_init_fn)NULL) ? \ + init : init } + +#endif + +#endif /* __OF_RESERVED_MEM_H */ diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib index 79c059e70860..72105d104357 100644 --- a/scripts/Makefile.lib +++ b/scripts/Makefile.lib @@ -274,6 +274,18 @@ $(obj)/%.dtb: $(src)/%.dts FORCE dtc-tmp = $(subst $(comma),_,$(dot-target).dts.tmp) +# Helper targets for Installing DTBs into the boot directory +quiet_cmd_dtb_install = INSTALL $< + cmd_dtb_install = cp $< $(2) + +_dtbinst_pre_: + $(Q)if [ -d $(INSTALL_DTBS_PATH).old ]; then rm -rf $(INSTALL_DTBS_PATH).old; fi + $(Q)if [ -d $(INSTALL_DTBS_PATH) ]; then mv $(INSTALL_DTBS_PATH) $(INSTALL_DTBS_PATH).old; fi + $(Q)mkdir -p $(INSTALL_DTBS_PATH) + +%.dtb_dtbinst_: $(obj)/%.dtb _dtbinst_pre_ + $(call cmd,dtb_install,$(INSTALL_DTBS_PATH)) + # Bzip2 # --------------------------------------------------------------------------- diff --git a/scripts/dtc/dtc-parser.tab.c_shipped b/scripts/dtc/dtc-parser.tab.c_shipped index ee1d8c3042fb..c8769d550cfb 100644 --- a/scripts/dtc/dtc-parser.tab.c_shipped +++ b/scripts/dtc/dtc-parser.tab.c_shipped @@ -1,8 +1,8 @@ -/* A Bison parser, made by GNU Bison 2.5. */ +/* A Bison parser, made by GNU Bison 2.7.12-4996. */ /* Bison implementation for Yacc-like parsers in C - Copyright (C) 1984, 1989-1990, 2000-2011 Free Software Foundation, Inc. + Copyright (C) 1984, 1989-1990, 2000-2013 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -44,7 +44,7 @@ #define YYBISON 1 /* Bison version. */ -#define YYBISON_VERSION "2.5" +#define YYBISON_VERSION "2.7.12-4996" /* Skeleton name. */ #define YYSKELETON_NAME "yacc.c" @@ -58,14 +58,11 @@ /* Pull parsers. */ #define YYPULL 1 -/* Using locations. */ -#define YYLSP_NEEDED 0 /* Copy the first part of user declarations. */ - -/* Line 268 of yacc.c */ +/* Line 371 of yacc.c */ #line 21 "dtc-parser.y" #include <stdio.h> @@ -85,14 +82,16 @@ extern int treesource_error; static unsigned long long eval_literal(const char *s, int base, int bits); static unsigned char eval_char_literal(const char *s); +/* Line 371 of yacc.c */ +#line 87 "dtc-parser.tab.c" -/* Line 268 of yacc.c */ -#line 91 "dtc-parser.tab.c" - -/* Enabling traces. */ -#ifndef YYDEBUG -# define YYDEBUG 0 -#endif +# ifndef YY_NULL +# if defined __cplusplus && 201103L <= __cplusplus +# define YY_NULL nullptr +# else +# define YY_NULL 0 +# endif +# endif /* Enabling verbose error messages. */ #ifdef YYERROR_VERBOSE @@ -102,11 +101,17 @@ static unsigned char eval_char_literal(const char *s); # define YYERROR_VERBOSE 0 #endif -/* Enabling the token table. */ -#ifndef YYTOKEN_TABLE -# define YYTOKEN_TABLE 0 +/* In a future release of Bison, this section will be replaced + by #include "dtc-parser.tab.h". */ +#ifndef YY_YY_DTC_PARSER_TAB_H_INCLUDED +# define YY_YY_DTC_PARSER_TAB_H_INCLUDED +/* Enabling traces. */ +#ifndef YYDEBUG +# define YYDEBUG 0 +#endif +#if YYDEBUG +extern int yydebug; #endif - /* Tokens. */ #ifndef YYTOKENTYPE @@ -140,12 +145,10 @@ static unsigned char eval_char_literal(const char *s); #endif - #if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED typedef union YYSTYPE { - -/* Line 293 of yacc.c */ +/* Line 387 of yacc.c */ #line 40 "dtc-parser.y" char *propnodename; @@ -168,21 +171,36 @@ typedef union YYSTYPE uint64_t integer; - -/* Line 293 of yacc.c */ -#line 174 "dtc-parser.tab.c" +/* Line 387 of yacc.c */ +#line 176 "dtc-parser.tab.c" } YYSTYPE; # define YYSTYPE_IS_TRIVIAL 1 # define yystype YYSTYPE /* obsolescent; will be withdrawn */ # define YYSTYPE_IS_DECLARED 1 #endif +extern YYSTYPE yylval; -/* Copy the second part of user declarations. */ +#ifdef YYPARSE_PARAM +#if defined __STDC__ || defined __cplusplus +int yyparse (void *YYPARSE_PARAM); +#else +int yyparse (); +#endif +#else /* ! YYPARSE_PARAM */ +#if defined __STDC__ || defined __cplusplus +int yyparse (void); +#else +int yyparse (); +#endif +#endif /* ! YYPARSE_PARAM */ +#endif /* !YY_YY_DTC_PARSER_TAB_H_INCLUDED */ -/* Line 343 of yacc.c */ -#line 186 "dtc-parser.tab.c" +/* Copy the second part of user declarations. */ + +/* Line 390 of yacc.c */ +#line 204 "dtc-parser.tab.c" #ifdef short # undef short @@ -235,24 +253,33 @@ typedef short int yytype_int16; # if defined YYENABLE_NLS && YYENABLE_NLS # if ENABLE_NLS # include <libintl.h> /* INFRINGES ON USER NAME SPACE */ -# define YY_(msgid) dgettext ("bison-runtime", msgid) +# define YY_(Msgid) dgettext ("bison-runtime", Msgid) # endif # endif # ifndef YY_ -# define YY_(msgid) msgid +# define YY_(Msgid) Msgid +# endif +#endif + +#ifndef __attribute__ +/* This feature is available in gcc versions 2.5 and later. */ +# if (! defined __GNUC__ || __GNUC__ < 2 \ + || (__GNUC__ == 2 && __GNUC_MINOR__ < 5)) +# define __attribute__(Spec) /* empty */ # endif #endif /* Suppress unused-variable warnings by "using" E. */ #if ! defined lint || defined __GNUC__ -# define YYUSE(e) ((void) (e)) +# define YYUSE(E) ((void) (E)) #else -# define YYUSE(e) /* empty */ +# define YYUSE(E) /* empty */ #endif + /* Identity function, used to suppress warnings about constant conditions. */ #ifndef lint -# define YYID(n) (n) +# define YYID(N) (N) #else #if (defined __STDC__ || defined __C99__FUNC__ \ || defined __cplusplus || defined _MSC_VER) @@ -288,6 +315,7 @@ YYID (yyi) # if ! defined _ALLOCA_H && ! defined EXIT_SUCCESS && (defined __STDC__ || defined __C99__FUNC__ \ || defined __cplusplus || defined _MSC_VER) # include <stdlib.h> /* INFRINGES ON USER NAME SPACE */ + /* Use EXIT_SUCCESS as a witness for stdlib.h. */ # ifndef EXIT_SUCCESS # define EXIT_SUCCESS 0 # endif @@ -379,20 +407,20 @@ union yyalloc #endif #if defined YYCOPY_NEEDED && YYCOPY_NEEDED -/* Copy COUNT objects from FROM to TO. The source and destination do +/* Copy COUNT objects from SRC to DST. The source and destination do not overlap. */ # ifndef YYCOPY # if defined __GNUC__ && 1 < __GNUC__ -# define YYCOPY(To, From, Count) \ - __builtin_memcpy (To, From, (Count) * sizeof (*(From))) +# define YYCOPY(Dst, Src, Count) \ + __builtin_memcpy (Dst, Src, (Count) * sizeof (*(Src))) # else -# define YYCOPY(To, From, Count) \ - do \ - { \ - YYSIZE_T yyi; \ - for (yyi = 0; yyi < (Count); yyi++) \ - (To)[yyi] = (From)[yyi]; \ - } \ +# define YYCOPY(Dst, Src, Count) \ + do \ + { \ + YYSIZE_T yyi; \ + for (yyi = 0; yyi < (Count); yyi++) \ + (Dst)[yyi] = (Src)[yyi]; \ + } \ while (YYID (0)) # endif # endif @@ -513,7 +541,7 @@ static const yytype_uint16 yyrline[] = }; #endif -#if YYDEBUG || YYERROR_VERBOSE || YYTOKEN_TABLE +#if YYDEBUG || YYERROR_VERBOSE || 0 /* YYTNAME[SYMBOL-NUM] -- String name of the symbol SYMBOL-NUM. First, the terminals, then, starting at YYNTOKENS, nonterminals. */ static const char *const yytname[] = @@ -530,7 +558,7 @@ static const char *const yytname[] = "integer_expr", "integer_trinary", "integer_or", "integer_and", "integer_bitor", "integer_bitxor", "integer_bitand", "integer_eq", "integer_rela", "integer_shift", "integer_add", "integer_mul", - "integer_unary", "bytestring", "subnodes", "subnode", 0 + "integer_unary", "bytestring", "subnodes", "subnode", YY_NULL }; #endif @@ -655,10 +683,10 @@ static const yytype_uint8 yytable[] = 137, 0, 73, 139 }; -#define yypact_value_is_default(yystate) \ - ((yystate) == (-78)) +#define yypact_value_is_default(Yystate) \ + (!!((Yystate) == (-78))) -#define yytable_value_is_error(yytable_value) \ +#define yytable_value_is_error(Yytable_value) \ YYID (0) static const yytype_int16 yycheck[] = @@ -727,62 +755,35 @@ static const yytype_uint8 yystos[] = #define YYRECOVERING() (!!yyerrstatus) -#define YYBACKUP(Token, Value) \ -do \ - if (yychar == YYEMPTY && yylen == 1) \ - { \ - yychar = (Token); \ - yylval = (Value); \ - YYPOPSTACK (1); \ - goto yybackup; \ - } \ - else \ - { \ +#define YYBACKUP(Token, Value) \ +do \ + if (yychar == YYEMPTY) \ + { \ + yychar = (Token); \ + yylval = (Value); \ + YYPOPSTACK (yylen); \ + yystate = *yyssp; \ + goto yybackup; \ + } \ + else \ + { \ yyerror (YY_("syntax error: cannot back up")); \ YYERROR; \ } \ while (YYID (0)) - +/* Error token number */ #define YYTERROR 1 #define YYERRCODE 256 -/* YYLLOC_DEFAULT -- Set CURRENT to span from RHS[1] to RHS[N]. - If N is 0, then set CURRENT to the empty location which ends - the previous symbol: RHS[0] (always defined). */ - -#define YYRHSLOC(Rhs, K) ((Rhs)[K]) -#ifndef YYLLOC_DEFAULT -# define YYLLOC_DEFAULT(Current, Rhs, N) \ - do \ - if (YYID (N)) \ - { \ - (Current).first_line = YYRHSLOC (Rhs, 1).first_line; \ - (Current).first_column = YYRHSLOC (Rhs, 1).first_column; \ - (Current).last_line = YYRHSLOC (Rhs, N).last_line; \ - (Current).last_column = YYRHSLOC (Rhs, N).last_column; \ - } \ - else \ - { \ - (Current).first_line = (Current).last_line = \ - YYRHSLOC (Rhs, 0).last_line; \ - (Current).first_column = (Current).last_column = \ - YYRHSLOC (Rhs, 0).last_column; \ - } \ - while (YYID (0)) -#endif - - /* This macro is provided for backward compatibility. */ - #ifndef YY_LOCATION_PRINT # define YY_LOCATION_PRINT(File, Loc) ((void) 0) #endif /* YYLEX -- calling `yylex' with the right arguments. */ - #ifdef YYLEX_PARAM # define YYLEX yylex (YYLEX_PARAM) #else @@ -832,6 +833,8 @@ yy_symbol_value_print (yyoutput, yytype, yyvaluep) YYSTYPE const * const yyvaluep; #endif { + FILE *yyo = yyoutput; + YYUSE (yyo); if (!yyvaluep) return; # ifdef YYPRINT @@ -840,11 +843,7 @@ yy_symbol_value_print (yyoutput, yytype, yyvaluep) # else YYUSE (yyoutput); # endif - switch (yytype) - { - default: - break; - } + YYUSE (yytype); } @@ -1083,12 +1082,11 @@ static int yysyntax_error (YYSIZE_T *yymsg_alloc, char **yymsg, yytype_int16 *yyssp, int yytoken) { - YYSIZE_T yysize0 = yytnamerr (0, yytname[yytoken]); + YYSIZE_T yysize0 = yytnamerr (YY_NULL, yytname[yytoken]); YYSIZE_T yysize = yysize0; - YYSIZE_T yysize1; enum { YYERROR_VERBOSE_ARGS_MAXIMUM = 5 }; /* Internationalized format string. */ - const char *yyformat = 0; + const char *yyformat = YY_NULL; /* Arguments of yyformat. */ char const *yyarg[YYERROR_VERBOSE_ARGS_MAXIMUM]; /* Number of reported tokens (one for the "unexpected", one per @@ -1148,11 +1146,13 @@ yysyntax_error (YYSIZE_T *yymsg_alloc, char **yymsg, break; } yyarg[yycount++] = yytname[yyx]; - yysize1 = yysize + yytnamerr (0, yytname[yyx]); - if (! (yysize <= yysize1 - && yysize1 <= YYSTACK_ALLOC_MAXIMUM)) - return 2; - yysize = yysize1; + { + YYSIZE_T yysize1 = yysize + yytnamerr (YY_NULL, yytname[yyx]); + if (! (yysize <= yysize1 + && yysize1 <= YYSTACK_ALLOC_MAXIMUM)) + return 2; + yysize = yysize1; + } } } } @@ -1172,10 +1172,12 @@ yysyntax_error (YYSIZE_T *yymsg_alloc, char **yymsg, # undef YYCASE_ } - yysize1 = yysize + yystrlen (yyformat); - if (! (yysize <= yysize1 && yysize1 <= YYSTACK_ALLOC_MAXIMUM)) - return 2; - yysize = yysize1; + { + YYSIZE_T yysize1 = yysize + yystrlen (yyformat); + if (! (yysize <= yysize1 && yysize1 <= YYSTACK_ALLOC_MAXIMUM)) + return 2; + yysize = yysize1; + } if (*yymsg_alloc < yysize) { @@ -1231,36 +1233,26 @@ yydestruct (yymsg, yytype, yyvaluep) yymsg = "Deleting"; YY_SYMBOL_PRINT (yymsg, yytype, yyvaluep, yylocationp); - switch (yytype) - { - - default: - break; - } + YYUSE (yytype); } -/* Prevent warnings from -Wmissing-prototypes. */ -#ifdef YYPARSE_PARAM -#if defined __STDC__ || defined __cplusplus -int yyparse (void *YYPARSE_PARAM); -#else -int yyparse (); -#endif -#else /* ! YYPARSE_PARAM */ -#if defined __STDC__ || defined __cplusplus -int yyparse (void); -#else -int yyparse (); -#endif -#endif /* ! YYPARSE_PARAM */ /* The lookahead symbol. */ int yychar; + +#ifndef YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN +# define YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN +# define YY_IGNORE_MAYBE_UNINITIALIZED_END +#endif +#ifndef YY_INITIAL_VALUE +# define YY_INITIAL_VALUE(Value) /* Nothing. */ +#endif + /* The semantic value of the lookahead symbol. */ -YYSTYPE yylval; +YYSTYPE yylval YY_INITIAL_VALUE(yyval_default); /* Number of syntax errors so far. */ int yynerrs; @@ -1300,7 +1292,7 @@ yyparse () `yyss': related to states. `yyvs': related to semantic values. - Refer to the stacks thru separate pointers, to allow yyoverflow + Refer to the stacks through separate pointers, to allow yyoverflow to reallocate them elsewhere. */ /* The state stack. */ @@ -1318,7 +1310,7 @@ yyparse () int yyn; int yyresult; /* Lookahead token as an internal (translated) token number. */ - int yytoken; + int yytoken = 0; /* The variables used to return semantic value and location from the action routines. */ YYSTYPE yyval; @@ -1336,9 +1328,8 @@ yyparse () Keep to zero when no symbol should be popped. */ int yylen = 0; - yytoken = 0; - yyss = yyssa; - yyvs = yyvsa; + yyssp = yyss = yyssa; + yyvsp = yyvs = yyvsa; yystacksize = YYINITDEPTH; YYDPRINTF ((stderr, "Starting parse\n")); @@ -1347,14 +1338,6 @@ yyparse () yyerrstatus = 0; yynerrs = 0; yychar = YYEMPTY; /* Cause a token to be read. */ - - /* Initialize stack pointers. - Waste one element of value and location stack - so that they stay on the same level as the state stack. - The wasted elements are never initialized. */ - yyssp = yyss; - yyvsp = yyvs; - goto yysetstate; /*------------------------------------------------------------. @@ -1495,7 +1478,9 @@ yybackup: yychar = YYEMPTY; yystate = yyn; + YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN *++yyvsp = yylval; + YY_IGNORE_MAYBE_UNINITIALIZED_END goto yynewstate; @@ -1532,8 +1517,7 @@ yyreduce: switch (yyn) { case 2: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 110 "dtc-parser.y" { the_boot_info = build_boot_info((yyvsp[(3) - (4)].re), (yyvsp[(4) - (4)].node), @@ -1542,8 +1526,7 @@ yyreduce: break; case 3: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 118 "dtc-parser.y" { (yyval.re) = NULL; @@ -1551,8 +1534,7 @@ yyreduce: break; case 4: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 122 "dtc-parser.y" { (yyval.re) = chain_reserve_entry((yyvsp[(1) - (2)].re), (yyvsp[(2) - (2)].re)); @@ -1560,8 +1542,7 @@ yyreduce: break; case 5: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 129 "dtc-parser.y" { (yyval.re) = build_reserve_entry((yyvsp[(2) - (4)].integer), (yyvsp[(3) - (4)].integer)); @@ -1569,8 +1550,7 @@ yyreduce: break; case 6: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 133 "dtc-parser.y" { add_label(&(yyvsp[(2) - (2)].re)->labels, (yyvsp[(1) - (2)].labelref)); @@ -1579,8 +1559,7 @@ yyreduce: break; case 7: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 141 "dtc-parser.y" { (yyval.node) = name_node((yyvsp[(2) - (2)].node), ""); @@ -1588,8 +1567,7 @@ yyreduce: break; case 8: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 145 "dtc-parser.y" { (yyval.node) = merge_nodes((yyvsp[(1) - (3)].node), (yyvsp[(3) - (3)].node)); @@ -1597,8 +1575,7 @@ yyreduce: break; case 9: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 149 "dtc-parser.y" { struct node *target = get_node_by_ref((yyvsp[(1) - (3)].node), (yyvsp[(2) - (3)].labelref)); @@ -1612,8 +1589,7 @@ yyreduce: break; case 10: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 159 "dtc-parser.y" { struct node *target = get_node_by_ref((yyvsp[(1) - (4)].node), (yyvsp[(3) - (4)].labelref)); @@ -1628,8 +1604,7 @@ yyreduce: break; case 11: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 173 "dtc-parser.y" { (yyval.node) = build_node((yyvsp[(2) - (5)].proplist), (yyvsp[(3) - (5)].nodelist)); @@ -1637,8 +1612,7 @@ yyreduce: break; case 12: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 180 "dtc-parser.y" { (yyval.proplist) = NULL; @@ -1646,8 +1620,7 @@ yyreduce: break; case 13: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 184 "dtc-parser.y" { (yyval.proplist) = chain_property((yyvsp[(2) - (2)].prop), (yyvsp[(1) - (2)].proplist)); @@ -1655,8 +1628,7 @@ yyreduce: break; case 14: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 191 "dtc-parser.y" { (yyval.prop) = build_property((yyvsp[(1) - (4)].propnodename), (yyvsp[(3) - (4)].data)); @@ -1664,8 +1636,7 @@ yyreduce: break; case 15: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 195 "dtc-parser.y" { (yyval.prop) = build_property((yyvsp[(1) - (2)].propnodename), empty_data); @@ -1673,8 +1644,7 @@ yyreduce: break; case 16: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 199 "dtc-parser.y" { (yyval.prop) = build_property_delete((yyvsp[(2) - (3)].propnodename)); @@ -1682,8 +1652,7 @@ yyreduce: break; case 17: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 203 "dtc-parser.y" { add_label(&(yyvsp[(2) - (2)].prop)->labels, (yyvsp[(1) - (2)].labelref)); @@ -1692,8 +1661,7 @@ yyreduce: break; case 18: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 211 "dtc-parser.y" { (yyval.data) = data_merge((yyvsp[(1) - (2)].data), (yyvsp[(2) - (2)].data)); @@ -1701,8 +1669,7 @@ yyreduce: break; case 19: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 215 "dtc-parser.y" { (yyval.data) = data_merge((yyvsp[(1) - (3)].data), (yyvsp[(2) - (3)].array).data); @@ -1710,8 +1677,7 @@ yyreduce: break; case 20: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 219 "dtc-parser.y" { (yyval.data) = data_merge((yyvsp[(1) - (4)].data), (yyvsp[(3) - (4)].data)); @@ -1719,8 +1685,7 @@ yyreduce: break; case 21: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 223 "dtc-parser.y" { (yyval.data) = data_add_marker((yyvsp[(1) - (2)].data), REF_PATH, (yyvsp[(2) - (2)].labelref)); @@ -1728,8 +1693,7 @@ yyreduce: break; case 22: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 227 "dtc-parser.y" { FILE *f = srcfile_relative_open((yyvsp[(4) - (9)].data).val, NULL); @@ -1750,8 +1714,7 @@ yyreduce: break; case 23: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 244 "dtc-parser.y" { FILE *f = srcfile_relative_open((yyvsp[(4) - (5)].data).val, NULL); @@ -1765,8 +1728,7 @@ yyreduce: break; case 24: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 254 "dtc-parser.y" { (yyval.data) = data_add_marker((yyvsp[(1) - (2)].data), LABEL, (yyvsp[(2) - (2)].labelref)); @@ -1774,8 +1736,7 @@ yyreduce: break; case 25: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 261 "dtc-parser.y" { (yyval.data) = empty_data; @@ -1783,8 +1744,7 @@ yyreduce: break; case 26: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 265 "dtc-parser.y" { (yyval.data) = (yyvsp[(1) - (2)].data); @@ -1792,8 +1752,7 @@ yyreduce: break; case 27: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 269 "dtc-parser.y" { (yyval.data) = data_add_marker((yyvsp[(1) - (2)].data), LABEL, (yyvsp[(2) - (2)].labelref)); @@ -1801,8 +1760,7 @@ yyreduce: break; case 28: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 276 "dtc-parser.y" { (yyval.array).data = empty_data; @@ -1821,8 +1779,7 @@ yyreduce: break; case 29: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 291 "dtc-parser.y" { (yyval.array).data = empty_data; @@ -1831,8 +1788,7 @@ yyreduce: break; case 30: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 296 "dtc-parser.y" { if ((yyvsp[(1) - (2)].array).bits < 64) { @@ -1856,8 +1812,7 @@ yyreduce: break; case 31: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 316 "dtc-parser.y" { uint64_t val = ~0ULL >> (64 - (yyvsp[(1) - (2)].array).bits); @@ -1875,8 +1830,7 @@ yyreduce: break; case 32: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 330 "dtc-parser.y" { (yyval.array).data = data_add_marker((yyvsp[(1) - (2)].array).data, LABEL, (yyvsp[(2) - (2)].labelref)); @@ -1884,8 +1838,7 @@ yyreduce: break; case 33: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 337 "dtc-parser.y" { (yyval.integer) = eval_literal((yyvsp[(1) - (1)].literal), 0, 64); @@ -1893,8 +1846,7 @@ yyreduce: break; case 34: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 341 "dtc-parser.y" { (yyval.integer) = eval_char_literal((yyvsp[(1) - (1)].literal)); @@ -1902,8 +1854,7 @@ yyreduce: break; case 35: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 345 "dtc-parser.y" { (yyval.integer) = (yyvsp[(2) - (3)].integer); @@ -1911,162 +1862,139 @@ yyreduce: break; case 38: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 356 "dtc-parser.y" { (yyval.integer) = (yyvsp[(1) - (5)].integer) ? (yyvsp[(3) - (5)].integer) : (yyvsp[(5) - (5)].integer); } break; case 40: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 361 "dtc-parser.y" { (yyval.integer) = (yyvsp[(1) - (3)].integer) || (yyvsp[(3) - (3)].integer); } break; case 42: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 366 "dtc-parser.y" { (yyval.integer) = (yyvsp[(1) - (3)].integer) && (yyvsp[(3) - (3)].integer); } break; case 44: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 371 "dtc-parser.y" { (yyval.integer) = (yyvsp[(1) - (3)].integer) | (yyvsp[(3) - (3)].integer); } break; case 46: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 376 "dtc-parser.y" { (yyval.integer) = (yyvsp[(1) - (3)].integer) ^ (yyvsp[(3) - (3)].integer); } break; case 48: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 381 "dtc-parser.y" { (yyval.integer) = (yyvsp[(1) - (3)].integer) & (yyvsp[(3) - (3)].integer); } break; case 50: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 386 "dtc-parser.y" { (yyval.integer) = (yyvsp[(1) - (3)].integer) == (yyvsp[(3) - (3)].integer); } break; case 51: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 387 "dtc-parser.y" { (yyval.integer) = (yyvsp[(1) - (3)].integer) != (yyvsp[(3) - (3)].integer); } break; case 53: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 392 "dtc-parser.y" { (yyval.integer) = (yyvsp[(1) - (3)].integer) < (yyvsp[(3) - (3)].integer); } break; case 54: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 393 "dtc-parser.y" { (yyval.integer) = (yyvsp[(1) - (3)].integer) > (yyvsp[(3) - (3)].integer); } break; case 55: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 394 "dtc-parser.y" { (yyval.integer) = (yyvsp[(1) - (3)].integer) <= (yyvsp[(3) - (3)].integer); } break; case 56: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 395 "dtc-parser.y" { (yyval.integer) = (yyvsp[(1) - (3)].integer) >= (yyvsp[(3) - (3)].integer); } break; case 57: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 399 "dtc-parser.y" { (yyval.integer) = (yyvsp[(1) - (3)].integer) << (yyvsp[(3) - (3)].integer); } break; case 58: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 400 "dtc-parser.y" { (yyval.integer) = (yyvsp[(1) - (3)].integer) >> (yyvsp[(3) - (3)].integer); } break; case 60: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 405 "dtc-parser.y" { (yyval.integer) = (yyvsp[(1) - (3)].integer) + (yyvsp[(3) - (3)].integer); } break; case 61: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 406 "dtc-parser.y" { (yyval.integer) = (yyvsp[(1) - (3)].integer) - (yyvsp[(3) - (3)].integer); } break; case 63: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 411 "dtc-parser.y" { (yyval.integer) = (yyvsp[(1) - (3)].integer) * (yyvsp[(3) - (3)].integer); } break; case 64: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 412 "dtc-parser.y" { (yyval.integer) = (yyvsp[(1) - (3)].integer) / (yyvsp[(3) - (3)].integer); } break; case 65: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 413 "dtc-parser.y" { (yyval.integer) = (yyvsp[(1) - (3)].integer) % (yyvsp[(3) - (3)].integer); } break; case 68: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 419 "dtc-parser.y" { (yyval.integer) = -(yyvsp[(2) - (2)].integer); } break; case 69: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 420 "dtc-parser.y" { (yyval.integer) = ~(yyvsp[(2) - (2)].integer); } break; case 70: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 421 "dtc-parser.y" { (yyval.integer) = !(yyvsp[(2) - (2)].integer); } break; case 71: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 426 "dtc-parser.y" { (yyval.data) = empty_data; @@ -2074,8 +2002,7 @@ yyreduce: break; case 72: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 430 "dtc-parser.y" { (yyval.data) = data_append_byte((yyvsp[(1) - (2)].data), (yyvsp[(2) - (2)].byte)); @@ -2083,8 +2010,7 @@ yyreduce: break; case 73: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 434 "dtc-parser.y" { (yyval.data) = data_add_marker((yyvsp[(1) - (2)].data), LABEL, (yyvsp[(2) - (2)].labelref)); @@ -2092,8 +2018,7 @@ yyreduce: break; case 74: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 441 "dtc-parser.y" { (yyval.nodelist) = NULL; @@ -2101,8 +2026,7 @@ yyreduce: break; case 75: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 445 "dtc-parser.y" { (yyval.nodelist) = chain_node((yyvsp[(1) - (2)].node), (yyvsp[(2) - (2)].nodelist)); @@ -2110,8 +2034,7 @@ yyreduce: break; case 76: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 449 "dtc-parser.y" { print_error("syntax error: properties must precede subnodes"); @@ -2120,8 +2043,7 @@ yyreduce: break; case 77: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 457 "dtc-parser.y" { (yyval.node) = name_node((yyvsp[(2) - (2)].node), (yyvsp[(1) - (2)].propnodename)); @@ -2129,8 +2051,7 @@ yyreduce: break; case 78: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 461 "dtc-parser.y" { (yyval.node) = name_node(build_node_delete(), (yyvsp[(2) - (3)].propnodename)); @@ -2138,8 +2059,7 @@ yyreduce: break; case 79: - -/* Line 1806 of yacc.c */ +/* Line 1787 of yacc.c */ #line 465 "dtc-parser.y" { add_label(&(yyvsp[(2) - (2)].node)->labels, (yyvsp[(1) - (2)].labelref)); @@ -2148,9 +2068,8 @@ yyreduce: break; - -/* Line 1806 of yacc.c */ -#line 2154 "dtc-parser.tab.c" +/* Line 1787 of yacc.c */ +#line 2073 "dtc-parser.tab.c" default: break; } /* User semantic actions sometimes alter yychar, and that requires @@ -2313,7 +2232,9 @@ yyerrlab1: YY_STACK_PRINT (yyss, yyssp); } + YY_IGNORE_MAYBE_UNINITIALIZED_BEGIN *++yyvsp = yylval; + YY_IGNORE_MAYBE_UNINITIALIZED_END /* Shift the error token. */ @@ -2337,7 +2258,7 @@ yyabortlab: yyresult = 1; goto yyreturn; -#if !defined(yyoverflow) || YYERROR_VERBOSE +#if !defined yyoverflow || YYERROR_VERBOSE /*-------------------------------------------------. | yyexhaustedlab -- memory exhaustion comes here. | `-------------------------------------------------*/ @@ -2379,8 +2300,7 @@ yyreturn: } - -/* Line 2067 of yacc.c */ +/* Line 2050 of yacc.c */ #line 471 "dtc-parser.y" @@ -2444,4 +2364,3 @@ static unsigned char eval_char_literal(const char *s) return c; } - diff --git a/scripts/dtc/dtc-parser.tab.h_shipped b/scripts/dtc/dtc-parser.tab.h_shipped index 25d3b88c6132..b2e7a86cd85e 100644 --- a/scripts/dtc/dtc-parser.tab.h_shipped +++ b/scripts/dtc/dtc-parser.tab.h_shipped @@ -1,8 +1,8 @@ -/* A Bison parser, made by GNU Bison 2.5. */ +/* A Bison parser, made by GNU Bison 2.7.12-4996. */ /* Bison interface for Yacc-like parsers in C - Copyright (C) 1984, 1989-1990, 2000-2011 Free Software Foundation, Inc. + Copyright (C) 1984, 1989-1990, 2000-2013 Free Software Foundation, Inc. This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by @@ -30,6 +30,15 @@ This special exception was added by the Free Software Foundation in version 2.2 of Bison. */ +#ifndef YY_YY_DTC_PARSER_TAB_H_INCLUDED +# define YY_YY_DTC_PARSER_TAB_H_INCLUDED +/* Enabling traces. */ +#ifndef YYDEBUG +# define YYDEBUG 0 +#endif +#if YYDEBUG +extern int yydebug; +#endif /* Tokens. */ #ifndef YYTOKENTYPE @@ -63,12 +72,10 @@ #endif - #if ! defined YYSTYPE && ! defined YYSTYPE_IS_DECLARED typedef union YYSTYPE { - -/* Line 2068 of yacc.c */ +/* Line 2053 of yacc.c */ #line 40 "dtc-parser.y" char *propnodename; @@ -91,9 +98,8 @@ typedef union YYSTYPE uint64_t integer; - -/* Line 2068 of yacc.c */ -#line 97 "dtc-parser.tab.h" +/* Line 2053 of yacc.c */ +#line 103 "dtc-parser.tab.h" } YYSTYPE; # define YYSTYPE_IS_TRIVIAL 1 # define yystype YYSTYPE /* obsolescent; will be withdrawn */ @@ -102,4 +108,18 @@ typedef union YYSTYPE extern YYSTYPE yylval; +#ifdef YYPARSE_PARAM +#if defined __STDC__ || defined __cplusplus +int yyparse (void *YYPARSE_PARAM); +#else +int yyparse (); +#endif +#else /* ! YYPARSE_PARAM */ +#if defined __STDC__ || defined __cplusplus +int yyparse (void); +#else +int yyparse (); +#endif +#endif /* ! YYPARSE_PARAM */ +#endif /* !YY_YY_DTC_PARSER_TAB_H_INCLUDED */ diff --git a/scripts/dtc/dtc.c b/scripts/dtc/dtc.c index a375683c1534..e3c96536fd9d 100644 --- a/scripts/dtc/dtc.c +++ b/scripts/dtc/dtc.c @@ -21,8 +21,6 @@ #include "dtc.h" #include "srcpos.h" -#include "version_gen.h" - /* * Command line options */ @@ -49,55 +47,60 @@ static void fill_fullpaths(struct node *tree, const char *prefix) fill_fullpaths(child, tree->fullpath); } -static void __attribute__ ((noreturn)) usage(void) -{ - fprintf(stderr, "Usage:\n"); - fprintf(stderr, "\tdtc [options] <input file>\n"); - fprintf(stderr, "\nOptions:\n"); - fprintf(stderr, "\t-h\n"); - fprintf(stderr, "\t\tThis help text\n"); - fprintf(stderr, "\t-q\n"); - fprintf(stderr, "\t\tQuiet: -q suppress warnings, -qq errors, -qqq all\n"); - fprintf(stderr, "\t-I <input format>\n"); - fprintf(stderr, "\t\tInput formats are:\n"); - fprintf(stderr, "\t\t\tdts - device tree source text\n"); - fprintf(stderr, "\t\t\tdtb - device tree blob\n"); - fprintf(stderr, "\t\t\tfs - /proc/device-tree style directory\n"); - fprintf(stderr, "\t-o <output file>\n"); - fprintf(stderr, "\t-O <output format>\n"); - fprintf(stderr, "\t\tOutput formats are:\n"); - fprintf(stderr, "\t\t\tdts - device tree source text\n"); - fprintf(stderr, "\t\t\tdtb - device tree blob\n"); - fprintf(stderr, "\t\t\tasm - assembler source\n"); - fprintf(stderr, "\t-V <output version>\n"); - fprintf(stderr, "\t\tBlob version to produce, defaults to %d (relevant for dtb\n\t\tand asm output only)\n", DEFAULT_FDT_VERSION); - fprintf(stderr, "\t-d <output dependency file>\n"); - fprintf(stderr, "\t-R <number>\n"); - fprintf(stderr, "\t\tMake space for <number> reserve map entries (relevant for \n\t\tdtb and asm output only)\n"); - fprintf(stderr, "\t-S <bytes>\n"); - fprintf(stderr, "\t\tMake the blob at least <bytes> long (extra space)\n"); - fprintf(stderr, "\t-p <bytes>\n"); - fprintf(stderr, "\t\tAdd padding to the blob of <bytes> long (extra space)\n"); - fprintf(stderr, "\t-b <number>\n"); - fprintf(stderr, "\t\tSet the physical boot cpu\n"); - fprintf(stderr, "\t-f\n"); - fprintf(stderr, "\t\tForce - try to produce output even if the input tree has errors\n"); - fprintf(stderr, "\t-i\n"); - fprintf(stderr, "\t\tAdd a path to search for include files\n"); - fprintf(stderr, "\t-s\n"); - fprintf(stderr, "\t\tSort nodes and properties before outputting (only useful for\n\t\tcomparing trees)\n"); - fprintf(stderr, "\t-v\n"); - fprintf(stderr, "\t\tPrint DTC version and exit\n"); - fprintf(stderr, "\t-H <phandle format>\n"); - fprintf(stderr, "\t\tphandle formats are:\n"); - fprintf(stderr, "\t\t\tlegacy - \"linux,phandle\" properties only\n"); - fprintf(stderr, "\t\t\tepapr - \"phandle\" properties only\n"); - fprintf(stderr, "\t\t\tboth - Both \"linux,phandle\" and \"phandle\" properties\n"); - fprintf(stderr, "\t-W [no-]<checkname>\n"); - fprintf(stderr, "\t-E [no-]<checkname>\n"); - fprintf(stderr, "\t\t\tenable or disable warnings and errors\n"); - exit(3); -} +/* Usage related data. */ +static const char usage_synopsis[] = "dtc [options] <input file>"; +static const char usage_short_opts[] = "qI:O:o:V:d:R:S:p:fb:i:H:sW:E:hv"; +static struct option const usage_long_opts[] = { + {"quiet", no_argument, NULL, 'q'}, + {"in-format", a_argument, NULL, 'I'}, + {"out", a_argument, NULL, 'o'}, + {"out-format", a_argument, NULL, 'O'}, + {"out-version", a_argument, NULL, 'V'}, + {"out-dependency", a_argument, NULL, 'd'}, + {"reserve", a_argument, NULL, 'R'}, + {"space", a_argument, NULL, 'S'}, + {"pad", a_argument, NULL, 'p'}, + {"boot-cpu", a_argument, NULL, 'b'}, + {"force", no_argument, NULL, 'f'}, + {"include", a_argument, NULL, 'i'}, + {"sort", no_argument, NULL, 's'}, + {"phandle", a_argument, NULL, 'H'}, + {"warning", a_argument, NULL, 'W'}, + {"error", a_argument, NULL, 'E'}, + {"help", no_argument, NULL, 'h'}, + {"version", no_argument, NULL, 'v'}, + {NULL, no_argument, NULL, 0x0}, +}; +static const char * const usage_opts_help[] = { + "\n\tQuiet: -q suppress warnings, -qq errors, -qqq all", + "\n\tInput formats are:\n" + "\t\tdts - device tree source text\n" + "\t\tdtb - device tree blob\n" + "\t\tfs - /proc/device-tree style directory", + "\n\tOutput file", + "\n\tOutput formats are:\n" + "\t\tdts - device tree source text\n" + "\t\tdtb - device tree blob\n" + "\t\tasm - assembler source", + "\n\tBlob version to produce, defaults to %d (for dtb and asm output)", //, DEFAULT_FDT_VERSION); + "\n\tOutput dependency file", + "\n\ttMake space for <number> reserve map entries (for dtb and asm output)", + "\n\tMake the blob at least <bytes> long (extra space)", + "\n\tAdd padding to the blob of <bytes> long (extra space)", + "\n\tSet the physical boot cpu", + "\n\tTry to produce output even if the input tree has errors", + "\n\tAdd a path to search for include files", + "\n\tSort nodes and properties before outputting (useful for comparing trees)", + "\n\tValid phandle formats are:\n" + "\t\tlegacy - \"linux,phandle\" properties only\n" + "\t\tepapr - \"phandle\" properties only\n" + "\t\tboth - Both \"linux,phandle\" and \"phandle\" properties", + "\n\tEnable/disable warnings (prefix with \"no-\")", + "\n\tEnable/disable errors (prefix with \"no-\")", + "\n\tPrint this help and exit", + "\n\tPrint version and exit", + NULL, +}; int main(int argc, char *argv[]) { @@ -118,8 +121,7 @@ int main(int argc, char *argv[]) minsize = 0; padsize = 0; - while ((opt = getopt(argc, argv, "hI:O:o:V:d:R:S:p:fqb:i:vH:sW:E:")) - != EOF) { + while ((opt = util_getopt_long()) != EOF) { switch (opt) { case 'I': inform = optarg; @@ -158,8 +160,7 @@ int main(int argc, char *argv[]) srcfile_add_search_path(optarg); break; case 'v': - printf("Version: %s\n", DTC_VERSION); - exit(0); + util_version(); case 'H': if (streq(optarg, "legacy")) phandle_format = PHANDLE_LEGACY; @@ -185,13 +186,14 @@ int main(int argc, char *argv[]) break; case 'h': + usage(NULL); default: - usage(); + usage("unknown option"); } } if (argc > (optind+1)) - usage(); + usage("missing files"); else if (argc < (optind+1)) arg = "-"; else @@ -201,9 +203,6 @@ int main(int argc, char *argv[]) if (minsize && padsize) die("Can't set both -p and -S\n"); - if (minsize) - fprintf(stderr, "DTC: Use of \"-S\" is deprecated; it will be removed soon, use \"-p\" instead\n"); - if (depname) { depfile = fopen(depname, "w"); if (!depfile) diff --git a/scripts/dtc/dtc.h b/scripts/dtc/dtc.h index 3e42a071070e..264a20cf66a8 100644 --- a/scripts/dtc/dtc.h +++ b/scripts/dtc/dtc.h @@ -66,7 +66,6 @@ typedef uint32_t cell_t; #define strneq(a, b, n) (strncmp((a), (b), (n)) == 0) #define ALIGN(x, a) (((x) + (a) - 1) & ~((a) - 1)) -#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) /* Data blobs */ enum markertype { diff --git a/scripts/dtc/srcpos.c b/scripts/dtc/srcpos.c index 246ab4bc0d9d..c20bc5315bc1 100644 --- a/scripts/dtc/srcpos.c +++ b/scripts/dtc/srcpos.c @@ -297,9 +297,9 @@ srcpos_verror(struct srcpos *pos, char const *fmt, va_list va) srcstr = srcpos_string(pos); - fprintf(stdout, "Error: %s ", srcstr); - vfprintf(stdout, fmt, va); - fprintf(stdout, "\n"); + fprintf(stderr, "Error: %s ", srcstr); + vfprintf(stderr, fmt, va); + fprintf(stderr, "\n"); } void diff --git a/scripts/dtc/update-dtc-source.sh b/scripts/dtc/update-dtc-source.sh new file mode 100755 index 000000000000..feb01ef26be4 --- /dev/null +++ b/scripts/dtc/update-dtc-source.sh @@ -0,0 +1,54 @@ +#!/bin/sh +# Simple script to update the version of DTC carried by the Linux kernel +# +# This script assumes that the dtc and the linux git trees are in the +# same directory. After building dtc in the dtc directory, it copies the +# source files and generated source files into the scripts/dtc directory +# in the kernel and creates a git commit updating them to the new +# version. +# +# Usage: from the top level Linux source tree, run: +# $ ./scripts/dtc/update-dtc-source.sh +# +# The script will change into the dtc tree, build and test dtc, copy the +# relevant files into the kernel tree and create a git commit. The commit +# message will need to be modified to reflect the version of DTC being +# imported +# +# TODO: +# This script is pretty basic, but it is seldom used so a few manual tasks +# aren't a big deal. If anyone is interested in making it more robust, the +# the following would be nice: +# * Actually fail to complete if any testcase fails. +# - The dtc "make check" target needs to return a failure +# * Extract the version number from the dtc repo for the commit message +# * Build dtc in the kernel tree +# * run 'make check" on dtc built from the kernel tree + +set -ev + +DTC_UPSTREAM_PATH=`pwd`/../dtc +DTC_LINUX_PATH=`pwd`/scripts/dtc + +DTC_SOURCE="checks.c data.c dtc.c dtc.h flattree.c fstree.c livetree.c srcpos.c \ + srcpos.h treesource.c util.c util.h version_gen.h Makefile.dtc \ + dtc-lexer.l dtc-parser.y" +DTC_GENERATED="dtc-lexer.lex.c dtc-parser.tab.c dtc-parser.tab.h" + +# Build DTC +cd $DTC_UPSTREAM_PATH +make clean +make check + +# Copy the files into the Linux tree +cd $DTC_LINUX_PATH +for f in $DTC_SOURCE; do + cp ${DTC_UPSTREAM_PATH}/${f} ${f} + git add ${f} +done +for f in $DTC_GENERATED; do + cp ${DTC_UPSTREAM_PATH}/$f ${f}_shipped + git add ${f}_shipped +done + +git commit -e -v -m "scripts/dtc: Update to upstream version [CHANGEME]" diff --git a/scripts/dtc/util.c b/scripts/dtc/util.c index 2422c34e11df..3055c16e980d 100644 --- a/scripts/dtc/util.c +++ b/scripts/dtc/util.c @@ -34,6 +34,7 @@ #include "libfdt.h" #include "util.h" +#include "version_gen.h" char *xstrdup(const char *s) { @@ -72,7 +73,7 @@ char *join_path(const char *path, const char *name) int util_is_printable_string(const void *data, int len) { const char *s = data; - const char *ss; + const char *ss, *se; /* zero length is not */ if (len == 0) @@ -82,13 +83,19 @@ int util_is_printable_string(const void *data, int len) if (s[len - 1] != '\0') return 0; - ss = s; - while (*s && isprint(*s)) - s++; + se = s + len; - /* not zero, or not done yet */ - if (*s != '\0' || (s + 1 - ss) < len) - return 0; + while (s < se) { + ss = s; + while (s < se && *s && isprint(*s)) + s++; + + /* not zero, or not done yet */ + if (*s != '\0' || s == ss) + return 0; + + s++; + } return 1; } @@ -191,7 +198,7 @@ char get_escape_char(const char *s, int *i) return val; } -int utilfdt_read_err(const char *filename, char **buffp) +int utilfdt_read_err_len(const char *filename, char **buffp, off_t *len) { int fd = 0; /* assume stdin */ char *buf = NULL; @@ -206,12 +213,12 @@ int utilfdt_read_err(const char *filename, char **buffp) } /* Loop until we have read everything */ - buf = malloc(bufsize); + buf = xmalloc(bufsize); do { /* Expand the buffer to hold the next chunk */ if (offset == bufsize) { bufsize *= 2; - buf = realloc(buf, bufsize); + buf = xrealloc(buf, bufsize); if (!buf) { ret = ENOMEM; break; @@ -232,13 +239,20 @@ int utilfdt_read_err(const char *filename, char **buffp) free(buf); else *buffp = buf; + *len = bufsize; return ret; } -char *utilfdt_read(const char *filename) +int utilfdt_read_err(const char *filename, char **buffp) +{ + off_t len; + return utilfdt_read_err_len(filename, buffp, &len); +} + +char *utilfdt_read_len(const char *filename, off_t *len) { char *buff; - int ret = utilfdt_read_err(filename, &buff); + int ret = utilfdt_read_err_len(filename, &buff, len); if (ret) { fprintf(stderr, "Couldn't open blob from '%s': %s\n", filename, @@ -249,6 +263,12 @@ char *utilfdt_read(const char *filename) return buff; } +char *utilfdt_read(const char *filename) +{ + off_t len; + return utilfdt_read_len(filename, &len); +} + int utilfdt_write_err(const char *filename, const void *blob) { int fd = 1; /* assume stdout */ @@ -329,3 +349,100 @@ int utilfdt_decode_type(const char *fmt, int *type, int *size) return -1; return 0; } + +void utilfdt_print_data(const char *data, int len) +{ + int i; + const char *p = data; + const char *s; + + /* no data, don't print */ + if (len == 0) + return; + + if (util_is_printable_string(data, len)) { + printf(" = "); + + s = data; + do { + printf("\"%s\"", s); + s += strlen(s) + 1; + if (s < data + len) + printf(", "); + } while (s < data + len); + + } else if ((len % 4) == 0) { + const uint32_t *cell = (const uint32_t *)data; + + printf(" = <"); + for (i = 0; i < len; i += 4) + printf("0x%08x%s", fdt32_to_cpu(cell[i]), + i < (len - 4) ? " " : ""); + printf(">"); + } else { + printf(" = ["); + for (i = 0; i < len; i++) + printf("%02x%s", *p++, i < len - 1 ? " " : ""); + printf("]"); + } +} + +void util_version(void) +{ + printf("Version: %s\n", DTC_VERSION); + exit(0); +} + +void util_usage(const char *errmsg, const char *synopsis, + const char *short_opts, struct option const long_opts[], + const char * const opts_help[]) +{ + FILE *fp = errmsg ? stderr : stdout; + const char a_arg[] = "<arg>"; + size_t a_arg_len = strlen(a_arg) + 1; + size_t i; + int optlen; + + fprintf(fp, + "Usage: %s\n" + "\n" + "Options: -[%s]\n", synopsis, short_opts); + + /* prescan the --long opt length to auto-align */ + optlen = 0; + for (i = 0; long_opts[i].name; ++i) { + /* +1 is for space between --opt and help text */ + int l = strlen(long_opts[i].name) + 1; + if (long_opts[i].has_arg == a_argument) + l += a_arg_len; + if (optlen < l) + optlen = l; + } + + for (i = 0; long_opts[i].name; ++i) { + /* helps when adding new applets or options */ + assert(opts_help[i] != NULL); + + /* first output the short flag if it has one */ + if (long_opts[i].val > '~') + fprintf(fp, " "); + else + fprintf(fp, " -%c, ", long_opts[i].val); + + /* then the long flag */ + if (long_opts[i].has_arg == no_argument) + fprintf(fp, "--%-*s", optlen, long_opts[i].name); + else + fprintf(fp, "--%s %s%*s", long_opts[i].name, a_arg, + (int)(optlen - strlen(long_opts[i].name) - a_arg_len), ""); + + /* finally the help text */ + fprintf(fp, "%s\n", opts_help[i]); + } + + if (errmsg) { + fprintf(fp, "\nError: %s\n", errmsg); + exit(EXIT_FAILURE); + } else + exit(EXIT_SUCCESS); +} diff --git a/scripts/dtc/util.h b/scripts/dtc/util.h index c8eb45d9f04b..8f40b4499359 100644 --- a/scripts/dtc/util.h +++ b/scripts/dtc/util.h @@ -2,6 +2,7 @@ #define _UTIL_H #include <stdarg.h> +#include <getopt.h> /* * Copyright 2011 The Chromium Authors, All Rights Reserved. @@ -23,7 +24,9 @@ * USA */ -static inline void __attribute__((noreturn)) die(char * str, ...) +#define ARRAY_SIZE(x) (sizeof(x) / sizeof((x)[0])) + +static inline void __attribute__((noreturn)) die(const char *str, ...) { va_list ap; @@ -57,12 +60,14 @@ extern char *xstrdup(const char *s); extern char *join_path(const char *path, const char *name); /** - * Check a string of a given length to see if it is all printable and - * has a valid terminator. + * Check a property of a given length to see if it is all printable and + * has a valid terminator. The property can contain either a single string, + * or multiple strings each of non-zero length. * * @param data The string to check * @param len The string length including terminator - * @return 1 if a valid printable string, 0 if not */ + * @return 1 if a valid printable string, 0 if not + */ int util_is_printable_string(const void *data, int len); /* @@ -83,6 +88,13 @@ char get_escape_char(const char *s, int *i); char *utilfdt_read(const char *filename); /** + * Like utilfdt_read(), but also passes back the size of the file read. + * + * @param len If non-NULL, the amount of data we managed to read + */ +char *utilfdt_read_len(const char *filename, off_t *len); + +/** * Read a device tree file into a buffer. Does not report errors, but only * returns them. The value returned can be passed to strerror() to obtain * an error message for the user. @@ -93,6 +105,12 @@ char *utilfdt_read(const char *filename); */ int utilfdt_read_err(const char *filename, char **buffp); +/** + * Like utilfdt_read_err(), but also passes back the size of the file read. + * + * @param len If non-NULL, the amount of data we managed to read + */ +int utilfdt_read_err_len(const char *filename, char **buffp, off_t *len); /** * Write a device tree buffer to a file. This will report any errors on @@ -148,6 +166,85 @@ int utilfdt_decode_type(const char *fmt, int *type, int *size); #define USAGE_TYPE_MSG \ "<type>\ts=string, i=int, u=unsigned, x=hex\n" \ "\tOptional modifier prefix:\n" \ - "\t\thh or b=byte, h=2 byte, l=4 byte (default)\n"; + "\t\thh or b=byte, h=2 byte, l=4 byte (default)"; + +/** + * Print property data in a readable format to stdout + * + * Properties that look like strings will be printed as strings. Otherwise + * the data will be displayed either as cells (if len is a multiple of 4 + * bytes) or bytes. + * + * If len is 0 then this function does nothing. + * + * @param data Pointers to property data + * @param len Length of property data + */ +void utilfdt_print_data(const char *data, int len); + +/** + * Show source version and exit + */ +void util_version(void) __attribute__((noreturn)); + +/** + * Show usage and exit + * + * This helps standardize the output of various utils. You most likely want + * to use the usage() helper below rather than call this. + * + * @param errmsg If non-NULL, an error message to display + * @param synopsis The initial example usage text (and possible examples) + * @param short_opts The string of short options + * @param long_opts The structure of long options + * @param opts_help An array of help strings (should align with long_opts) + */ +void util_usage(const char *errmsg, const char *synopsis, + const char *short_opts, struct option const long_opts[], + const char * const opts_help[]) __attribute__((noreturn)); + +/** + * Show usage and exit + * + * If you name all your usage variables with usage_xxx, then you can call this + * help macro rather than expanding all arguments yourself. + * + * @param errmsg If non-NULL, an error message to display + */ +#define usage(errmsg) \ + util_usage(errmsg, usage_synopsis, usage_short_opts, \ + usage_long_opts, usage_opts_help) + +/** + * Call getopt_long() with standard options + * + * Since all util code runs getopt in the same way, provide a helper. + */ +#define util_getopt_long() getopt_long(argc, argv, usage_short_opts, \ + usage_long_opts, NULL) + +/* Helper for aligning long_opts array */ +#define a_argument required_argument + +/* Helper for usage_short_opts string constant */ +#define USAGE_COMMON_SHORT_OPTS "hV" + +/* Helper for usage_long_opts option array */ +#define USAGE_COMMON_LONG_OPTS \ + {"help", no_argument, NULL, 'h'}, \ + {"version", no_argument, NULL, 'V'}, \ + {NULL, no_argument, NULL, 0x0} + +/* Helper for usage_opts_help array */ +#define USAGE_COMMON_OPTS_HELP \ + "Print this help and exit", \ + "Print version and exit", \ + NULL + +/* Helper for getopt case statements */ +#define case_USAGE_COMMON_FLAGS \ + case 'h': usage(NULL); \ + case 'V': util_version(); \ + case '?': usage("unknown option"); #endif /* _UTIL_H */ diff --git a/scripts/dtc/version_gen.h b/scripts/dtc/version_gen.h index 6158b867df99..54d4e904433a 100644 --- a/scripts/dtc/version_gen.h +++ b/scripts/dtc/version_gen.h @@ -1 +1 @@ -#define DTC_VERSION "DTC 1.2.0-g37c0b6a0" +#define DTC_VERSION "DTC 1.4.0-dirty" |