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Commit b9f2b21a authored by Linus Torvalds's avatar Linus Torvalds
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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
  ...
parents 70f6c087 a0e73983
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Documentation/ABI/testing/sysfs-firmware-ofw 0 → 100644
View file @ b9f2b21a
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.
Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt 0 → 100644
View file @ b9f2b21a
*** 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>;
/* ... */
};
};
Documentation/devicetree/bindings/vendor-prefixes.txt
View file @ b9f2b21a
......@@ -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
Makefile
View file @ b9f2b21a
......@@ -728,6 +728,13 @@ export KBUILD_IMAGE ?= vmlinux
# images. Default is /boot, but you can set it to other values
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
......
arch/arm/Kconfig
View file @ b9f2b21a
......@@ -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.
......
arch/arm/Makefile
View file @ b9f2b21a
......@@ -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 $(INSTALL_DTBS_PATH)'
echo ' install - Install uncompressed kernel'
echo ' zinstall - Install compressed kernel'
echo ' uinstall - Install U-Boot wrapped compressed kernel'
......
arch/arm/boot/dts/Makefile
View file @ b9f2b21a
......@@ -323,7 +323,7 @@ dtb-$(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))
arch/arm/mach-mvebu/Kconfig
View file @ b9f2b21a
......@@ -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
......
arch/arm/mach-omap2/Kconfig
View file @ b9f2b21a
......@@ -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
......
arch/arm/mm/init.c
View file @ b9f2b21a
......@@ -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
......
arch/arm64/Kconfig
View file @ b9f2b21a
......@@ -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
......
arch/arm64/mm/init.c
View file @ b9f2b21a
......@@ -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();
......
arch/powerpc/Kconfig
View file @ b9f2b21a
......@@ -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
......
arch/powerpc/kernel/prom.c
View file @ b9f2b21a
......@@ -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)
......
arch/powerpc/platforms/pseries/dlpar.c
View file @ b9f2b21a
......@@ -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;
}
......
arch/powerpc/platforms/pseries/reconfig.c
View file @ b9f2b21a
......@@ -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)) {
......
arch/powerpc/sysdev/msi_bitmap.c
View file @ b9f2b21a
......@@ -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));
......
drivers/of/Kconfig
View file @ b9f2b21a
......@@ -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
drivers/of/Makefile
View file @ b9f2b21a
......@@ -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
drivers/of/address.c
View file @ b9f2b21a
......@@ -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",
......
drivers/of/base.c
View file @ b9f2b21a
......@@ -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);
......@@ -1543,12 +1696,32 @@ 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);
}
......
drivers/of/fdt.c
View file @ b9f2b21a
......@@ -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) {
......@@ -439,6 +441,129 @@ 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
......@@ -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)
......
drivers/of/of_net.c
View file @ b9f2b21a
......@@ -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)
{
......@@ -46,6 +47,8 @@ int of_get_phy_mode(struct device_node *np)
int err, i;
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;
......
drivers/of/of_reserved_mem.c 0 → 100644
View file @ b9f2b21a
/*
* 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);
}
}
drivers/of/pdt.c
View file @ b9f2b21a
......@@ -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;
......
drivers/of/selftest.c
View file @ b9f2b21a
......@@ -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();
......
drivers/of/testcase-data/tests-phandle.dtsi
View file @ b9f2b21a
/ {
testcase-data {
security-password = "password";
duplicate-name = "duplicate";
duplicate-name { };
phandle-tests {
provider0: provider0 {
#phandle-cells = <0>;
......
fs/proc/Makefile
View file @ b9f2b21a
......@@ -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
fs/proc/internal.h
View file @ b9f2b21a
......@@ -210,13 +210,6 @@ extern struct inode *proc_get_inode(struct super_block *, struct proc_dir_entry
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
*/
......
fs/proc/proc_devtree.c deleted 100644 → 0
View file @ 70f6c087
/*
* 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);
}
fs/proc/root.c
View file @ b9f2b21a
......@@ -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();
}
......
include/asm-generic/vmlinux.lds.h
View file @ b9f2b21a
......@@ -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()
......
include/linux/of.h
View file @ b9f2b21a
......@@ -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 */
include/linux/of_fdt.h
View file @ b9f2b21a
......@@ -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) {}
......
include/linux/of_reserved_mem.h 0 → 100644
View file @ b9f2b21a
#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 */
scripts/Makefile.lib
View file @ b9f2b21a
......@@ -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
# ---------------------------------------------------------------------------
......
scripts/dtc/dtc-parser.tab.c_shipped
View file @ b9f2b21a
/* 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;
}
scripts/dtc/dtc-parser.tab.h_shipped
View file @ b9f2b21a
/* 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 */
scripts/dtc/dtc.c
View file @ b9f2b21a
......@@ -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)
......
scripts/dtc/dtc.h
View file @ b9f2b21a
......@@ -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 {
......
scripts/dtc/srcpos.c
View file @ b9f2b21a
......@@ -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
......
scripts/dtc/update-dtc-source.sh 0 → 100755
View file @ b9f2b21a
#!/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]"
scripts/dtc/util.c
View file @ b9f2b21a
......@@ -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);
}
scripts/dtc/util.h
View file @ b9f2b21a
......@@ -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);
/*
......@@ -82,6 +87,13 @@ 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
......@@ -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 */
scripts/dtc/version_gen.h
View file @ b9f2b21a
#define DTC_VERSION "DTC 1.2.0-g37c0b6a0"
#define DTC_VERSION "DTC 1.4.0-dirty"
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