#include <linux/cpuidle.h>
#include <linux/of.h>
-#include <linux/of_device.h>
#include <asm/cpuidle.h>
extern struct of_cpuidle_method __cpuidle_method_of_table[];
#include <linux/irqchip/arm-gic.h>
#include <linux/of.h>
#include <linux/of_address.h>
-#include <linux/of_device.h>
#include <linux/smp.h>
#include <asm/cacheflush.h>
#include <linux/cpu.h>
#include <linux/of.h>
-#include <linux/of_device.h>
#include <asm/cacheinfo.h>
static struct riscv_cacheinfo_ops *rv_cache_ops;
* Nick Kossifidis <mick@ics.forth.gr>
*/
+#include <linux/cpu.h>
#include <linux/init.h>
#include <linux/mm.h>
#include <linux/memblock.h>
#include <linux/console.h>
#include <linux/screen_info.h>
#include <linux/of_fdt.h>
-#include <linux/of_platform.h>
#include <linux/sched/task.h>
#include <linux/smp.h>
#include <linux/efi.h>
#include <linux/mutex.h>
#include <linux/atomic.h>
#include <linux/irqdomain.h>
+#include <linux/spinlock.h>
#define of_compat_cmp(s1, s2, l) strncmp((s1), (s2), (l))
#define of_prop_cmp(s1, s2) strcasecmp((s1), (s2))
#define of_node_cmp(s1, s2) strcmp((s1), (s2))
+extern raw_spinlock_t devtree_lock;
+
struct of_irq_controller {
unsigned int (*irq_build)(struct device_node *, unsigned int, void *);
void *data;
* parent as-is, not with the PCI translate
* method which chops off the top address cell.
*/
- if (!of_find_property(np, "ranges", NULL))
+ if (!of_property_present(np, "ranges"))
return 0;
return 1;
static int __init use_1to1_mapping(struct device_node *pp)
{
/* If we have a ranges property in the parent, use it. */
- if (of_find_property(pp, "ranges", NULL) != NULL)
+ if (of_property_present(pp, "ranges"))
return 0;
/* Some SBUS devices use intermediate nodes to express
* parent as-is, not with the PCI translate
* method which chops off the top address cell.
*/
- if (!of_find_property(np, "ranges", NULL))
+ if (!of_property_present(np, "ranges"))
return 0;
return 1;
* simba.
*/
if (of_node_name_eq(np, "pci")) {
- if (!of_find_property(np, "ranges", NULL))
+ if (!of_property_present(np, "ranges"))
return 1;
}
static int __init use_1to1_mapping(struct device_node *pp)
{
/* If we have a ranges property in the parent, use it. */
- if (of_find_property(pp, "ranges", NULL) != NULL)
+ if (of_property_present(pp, "ranges"))
return 0;
/* If the parent is the dma node of an ISA bus, pass
* don't have some intervening real bus that provides
* ranges based translations.
*/
- if (of_find_property(dp, "ranges", NULL) != NULL)
+ if (of_property_present(dp, "ranges"))
break;
dp = dp->parent;
pbm->chip_version >= 0x2)
tmp |= 0x3UL << SCHIZO_PCICTRL_PTO_SHIFT;
- if (!of_find_property(pbm->op->dev.of_node, "no-bus-parking", NULL))
+ if (!of_property_read_bool(pbm->op->dev.of_node, "no-bus-parking"))
tmp |= SCHIZO_PCICTRL_PARK;
else
tmp &= ~SCHIZO_PCICTRL_PARK;
{
if (irq == 0xffffffff)
return 0;
- if (!of_find_property(dp, "button", NULL))
+ if (!of_property_read_bool(dp, "button"))
return 0;
return 1;
struct device_node *portid_parent = NULL;
int portid = -1;
- if (of_find_property(dp, "cpuid", NULL)) {
+ if (of_property_present(dp, "cpuid")) {
int limit = 2;
portid_parent = dp;
return -ENODEV;
/* Only the primary RTC has an address property */
- if (!of_find_property(dp, "address", NULL))
+ if (!of_property_present(dp, "address"))
return -ENODEV;
m48t59_rtc.resource = &op->resource[0];
#include <linux/cpu.h>
#include <linux/device.h>
#include <linux/init.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
#include <linux/sched.h>
#include <linux/slab.h>
#include <linux/smp.h>
return 0;
}
-static int __init
-mbus_parse_ranges(struct device_node *node,
- int *addr_cells, int *c_addr_cells, int *c_size_cells,
- int *cell_count, const __be32 **ranges_start,
- const __be32 **ranges_end)
-{
- const __be32 *prop;
- int ranges_len, tuple_len;
-
- /* Allow a node with no 'ranges' property */
- *ranges_start = of_get_property(node, "ranges", &ranges_len);
- if (*ranges_start == NULL) {
- *addr_cells = *c_addr_cells = *c_size_cells = *cell_count = 0;
- *ranges_start = *ranges_end = NULL;
- return 0;
- }
- *ranges_end = *ranges_start + ranges_len / sizeof(__be32);
-
- *addr_cells = of_n_addr_cells(node);
-
- prop = of_get_property(node, "#address-cells", NULL);
- *c_addr_cells = be32_to_cpup(prop);
-
- prop = of_get_property(node, "#size-cells", NULL);
- *c_size_cells = be32_to_cpup(prop);
-
- *cell_count = *addr_cells + *c_addr_cells + *c_size_cells;
- tuple_len = (*cell_count) * sizeof(__be32);
-
- if (ranges_len % tuple_len) {
- pr_warn("malformed ranges entry '%pOFn'\n", node);
- return -EINVAL;
- }
- return 0;
-}
-
static int __init mbus_dt_setup(struct mvebu_mbus_state *mbus,
struct device_node *np)
{
- int addr_cells, c_addr_cells, c_size_cells;
- int i, ret, cell_count;
- const __be32 *r, *ranges_start, *ranges_end;
+ int ret;
+ struct of_range_parser parser;
+ struct of_range range;
- ret = mbus_parse_ranges(np, &addr_cells, &c_addr_cells,
- &c_size_cells, &cell_count,
- &ranges_start, &ranges_end);
+ ret = of_range_parser_init(&parser, np);
if (ret < 0)
- return ret;
+ return 0;
- for (i = 0, r = ranges_start; r < ranges_end; r += cell_count, i++) {
- u32 windowid, base, size;
+ for_each_of_range(&parser, &range) {
+ u32 windowid = upper_32_bits(range.bus_addr);
u8 target, attr;
/*
* An entry with a non-zero custom field do not
* correspond to a static window, so skip it.
*/
- windowid = of_read_number(r, 1);
if (CUSTOM(windowid))
continue;
target = TARGET(windowid);
attr = ATTR(windowid);
- base = of_read_number(r + c_addr_cells, addr_cells);
- size = of_read_number(r + c_addr_cells + addr_cells,
- c_size_cells);
- ret = mbus_dt_setup_win(mbus, base, size, target, attr);
+ ret = mbus_dt_setup_win(mbus, range.cpu_addr, range.size, target, attr);
if (ret < 0)
return ret;
}
#include <linux/delay.h>
#include <linux/io.h>
#include <linux/module.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
+#include <linux/of_platform.h>
+#include <linux/platform_device.h>
#include <linux/pm_runtime.h>
#include <linux/reset.h>
{
struct device *dev = &pdev->dev;
struct uniphier_system_bus_priv *priv;
- const __be32 *ranges;
- u32 cells, addr, size;
- u64 paddr;
- int pna, bank, rlen, rone, ret;
+ struct of_range_parser parser;
+ struct of_range range;
+ int ret;
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
priv->dev = dev;
- pna = of_n_addr_cells(dev->of_node);
-
- ret = of_property_read_u32(dev->of_node, "#address-cells", &cells);
- if (ret) {
- dev_err(dev, "failed to get #address-cells\n");
- return ret;
- }
- if (cells != 2) {
- dev_err(dev, "#address-cells must be 2\n");
- return -EINVAL;
- }
-
- ret = of_property_read_u32(dev->of_node, "#size-cells", &cells);
- if (ret) {
- dev_err(dev, "failed to get #size-cells\n");
+ ret = of_range_parser_init(&parser, dev->of_node);
+ if (ret)
return ret;
- }
- if (cells != 1) {
- dev_err(dev, "#size-cells must be 1\n");
- return -EINVAL;
- }
- ranges = of_get_property(dev->of_node, "ranges", &rlen);
- if (!ranges) {
- dev_err(dev, "failed to get ranges property\n");
- return -ENOENT;
- }
-
- rlen /= sizeof(*ranges);
- rone = pna + 2;
-
- for (; rlen >= rone; rlen -= rone) {
- bank = be32_to_cpup(ranges++);
- addr = be32_to_cpup(ranges++);
- paddr = of_translate_address(dev->of_node, ranges);
- if (paddr == OF_BAD_ADDR)
+ for_each_of_range(&parser, &range) {
+ if (range.cpu_addr == OF_BAD_ADDR)
return -EINVAL;
- ranges += pna;
- size = be32_to_cpup(ranges++);
-
- ret = uniphier_system_bus_add_bank(priv, bank, addr,
- paddr, size);
+ ret = uniphier_system_bus_add_bank(priv,
+ upper_32_bits(range.bus_addr),
+ lower_32_bits(range.bus_addr),
+ range.cpu_addr, range.size);
if (ret)
return ret;
}
#include <linux/clk.h>
#include <linux/clockchips.h>
#include <linux/clocksource.h>
+#include <linux/cpuhotplug.h>
#include <linux/interrupt.h>
#include <linux/mfd/ingenic-tcu.h>
#include <linux/mfd/syscon.h>
#include <linux/of.h>
-#include <linux/of_address.h>
#include <linux/of_irq.h>
-#include <linux/of_platform.h>
#include <linux/overflow.h>
#include <linux/platform_device.h>
#include <linux/regmap.h>
#include <linux/dmi.h>
#include <linux/slab.h>
#include <linux/string_helpers.h>
+#include <linux/platform_device.h>
#include <linux/acpi.h>
#include <linux/io.h>
#include <linux/err.h>
#include <linux/of.h>
-#include <linux/of_device.h>
#include <linux/platform_device.h>
#include "cpufreq-dt.h"
#include <linux/module.h>
#include <linux/clk.h>
#include <linux/cpufreq.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/io.h>
#include <asm/proc-fns.h>
#include <linux/completion.h>
#include <linux/mutex.h>
#include <linux/time.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
#define DBG(fmt...) pr_debug(fmt)
#include <linux/cpufreq.h>
#include <linux/compiler.h>
#include <linux/slab.h>
+#include <linux/platform_device.h>
#include <linux/acpi.h>
#include <linux/io.h>
#include <linux/init.h>
#include <linux/device.h>
#include <linux/hardirq.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
#include <asm/machdep.h>
#include <asm/irq.h>
#include <linux/init.h>
#include <linux/completion.h>
#include <linux/mutex.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
#include <asm/machdep.h>
#include <asm/irq.h>
#include <linux/interrupt.h>
#include <linux/kernel.h>
#include <linux/module.h>
-#include <linux/of_address.h>
-#include <linux/of_platform.h>
+#include <linux/of.h>
+#include <linux/platform_device.h>
#include <linux/pm_opp.h>
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/module.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/types.h>
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
+#include <linux/cpu.h>
#include <linux/module.h>
#include <linux/nvmem-consumer.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/pm_opp.h>
#include <linux/slab.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/module.h>
-#include <linux/of_device.h>
#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/pm_opp.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/module.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
#include <linux/platform_device.h>
#include <linux/pm_opp.h>
#include <linux/types.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
-#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/psci.h>
#include <linux/pm_domain.h>
#include <linux/io.h>
#include <linux/slab.h>
#include <linux/of.h>
-#include <linux/of_address.h>
-#include <linux/of_device.h>
+#include <linux/of_platform.h>
#include <linux/err.h>
#include <linux/platform_device.h>
#include <linux/cpuidle.h>
#define pr_fmt(fmt) "cpuidle-riscv-sbi: " fmt
+#include <linux/cpuhotplug.h>
#include <linux/cpuidle.h>
#include <linux/cpumask.h>
#include <linux/cpu_pm.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
-#include <linux/of_device.h>
#include <linux/slab.h>
#include <linux/platform_device.h>
#include <linux/pm_domain.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
-#include <linux/of_device.h>
#include "dt_idle_states.h"
np = dev->of_node;
- if (!of_find_property(np, "timestamp-names", NULL)) {
+ if (!of_property_present(np, "timestamp-names")) {
/* Let hte core construct it during request time */
desc->attr.name = NULL;
} else {
#define pr_fmt(fmt) "eiointc: " fmt
+#include <linux/cpuhotplug.h>
#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/irqchip.h>
#include <linux/irqdomain.h>
#include <linux/irqchip/chained_irq.h>
#include <linux/kernel.h>
-#include <linux/platform_device.h>
-#include <linux/of_address.h>
-#include <linux/of_irq.h>
-#include <linux/of_platform.h>
#include <linux/syscore_ops.h>
#define EIOINTC_REG_NODEMAP 0x14a0
# SPDX-License-Identifier: GPL-2.0
-obj-y = base.o device.o platform.o property.o
+obj-y = base.o cpu.o device.o platform.o property.o
obj-$(CONFIG_OF_KOBJ) += kobj.o
obj-$(CONFIG_OF_DYNAMIC) += dynamic.o
obj-$(CONFIG_OF_FLATTREE) += fdt.o
return 0;
}
+static unsigned int of_bus_default_flags_get_flags(const __be32 *addr)
+{
+ return of_read_number(addr, 1);
+}
+
static unsigned int of_bus_default_get_flags(const __be32 *addr)
{
return IORESOURCE_MEM;
}
+
#ifdef CONFIG_PCI
static unsigned int of_bus_pci_get_flags(const __be32 *addr)
{
res->parent = res->child = res->sibling = NULL;
res->name = np->full_name;
- if (!IS_ENABLED(CONFIG_PCI))
- return -ENOSYS;
-
if (res->flags & IORESOURCE_IO) {
unsigned long port;
err = pci_register_io_range(&np->fwnode, range->cpu_addr,
}
EXPORT_SYMBOL(of_pci_range_to_resource);
+/*
+ * of_range_to_resource - Create a resource from a ranges entry
+ * @np: device node where the range belongs to
+ * @index: the 'ranges' index to convert to a resource
+ * @res: pointer to a valid resource that will be updated to
+ * reflect the values contained in the range.
+ *
+ * Returns ENOENT if the entry is not found or EINVAL if the range cannot be
+ * converted to resource.
+ */
+int of_range_to_resource(struct device_node *np, int index, struct resource *res)
+{
+ int ret, i = 0;
+ struct of_range_parser parser;
+ struct of_range range;
+
+ ret = of_range_parser_init(&parser, np);
+ if (ret)
+ return ret;
+
+ for_each_of_range(&parser, &range)
+ if (i++ == index)
+ return of_pci_range_to_resource(&range, np, res);
+
+ return -ENOENT;
+}
+EXPORT_SYMBOL(of_range_to_resource);
+
/*
* ISA bus specific translator
*/
return flags;
}
+static int of_bus_default_flags_match(struct device_node *np)
+{
+ return of_bus_n_addr_cells(np) == 3;
+}
+
/*
* Array of bus specific translators
*/
.has_flags = true,
.get_flags = of_bus_isa_get_flags,
},
+ /* Default with flags cell */
+ {
+ .name = "default-flags",
+ .addresses = "reg",
+ .match = of_bus_default_flags_match,
+ .count_cells = of_bus_default_count_cells,
+ .map = of_bus_default_map,
+ .translate = of_bus_default_translate,
+ .has_flags = true,
+ .get_flags = of_bus_default_flags_get_flags,
+ },
/* Default */
{
.name = "default",
}
EXPORT_SYMBOL(__of_get_address);
+/**
+ * of_property_read_reg - Retrieve the specified "reg" entry index without translating
+ * @np: device tree node for which to retrieve "reg" from
+ * @idx: "reg" entry index to read
+ * @addr: return value for the untranslated address
+ * @size: return value for the entry size
+ *
+ * Returns -EINVAL if "reg" is not found. Returns 0 on success with addr and
+ * size values filled in.
+ */
+int of_property_read_reg(struct device_node *np, int idx, u64 *addr, u64 *size)
+{
+ const __be32 *prop = of_get_address(np, idx, size, NULL);
+
+ if (!prop)
+ return -EINVAL;
+
+ *addr = of_read_number(prop, of_n_addr_cells(np));
+
+ return 0;
+}
+EXPORT_SYMBOL(of_property_read_reg);
+
static int parser_init(struct of_pci_range_parser *parser,
struct device_node *node, const char *name)
{
}
EXPORT_SYMBOL(of_get_property);
-/**
- * of_get_cpu_hwid - Get the hardware ID from a CPU device node
- *
- * @cpun: CPU number(logical index) for which device node is required
- * @thread: The local thread number to get the hardware ID for.
- *
- * Return: The hardware ID for the CPU node or ~0ULL if not found.
- */
-u64 of_get_cpu_hwid(struct device_node *cpun, unsigned int thread)
-{
- const __be32 *cell;
- int ac, len;
-
- ac = of_n_addr_cells(cpun);
- cell = of_get_property(cpun, "reg", &len);
- if (!cell || !ac || ((sizeof(*cell) * ac * (thread + 1)) > len))
- return ~0ULL;
-
- cell += ac * thread;
- return of_read_number(cell, ac);
-}
-
-/*
- * arch_match_cpu_phys_id - Match the given logical CPU and physical id
- *
- * @cpu: logical cpu index of a core/thread
- * @phys_id: physical identifier of a core/thread
- *
- * CPU logical to physical index mapping is architecture specific.
- * However this __weak function provides a default match of physical
- * id to logical cpu index. phys_id provided here is usually values read
- * from the device tree which must match the hardware internal registers.
- *
- * Returns true if the physical identifier and the logical cpu index
- * correspond to the same core/thread, false otherwise.
- */
-bool __weak arch_match_cpu_phys_id(int cpu, u64 phys_id)
-{
- return (u32)phys_id == cpu;
-}
-
-/*
- * Checks if the given "prop_name" property holds the physical id of the
- * core/thread corresponding to the logical cpu 'cpu'. If 'thread' is not
- * NULL, local thread number within the core is returned in it.
- */
-static bool __of_find_n_match_cpu_property(struct device_node *cpun,
- const char *prop_name, int cpu, unsigned int *thread)
-{
- const __be32 *cell;
- int ac, prop_len, tid;
- u64 hwid;
-
- ac = of_n_addr_cells(cpun);
- cell = of_get_property(cpun, prop_name, &prop_len);
- if (!cell && !ac && arch_match_cpu_phys_id(cpu, 0))
- return true;
- if (!cell || !ac)
- return false;
- prop_len /= sizeof(*cell) * ac;
- for (tid = 0; tid < prop_len; tid++) {
- hwid = of_read_number(cell, ac);
- if (arch_match_cpu_phys_id(cpu, hwid)) {
- if (thread)
- *thread = tid;
- return true;
- }
- cell += ac;
- }
- return false;
-}
-
-/*
- * arch_find_n_match_cpu_physical_id - See if the given device node is
- * for the cpu corresponding to logical cpu 'cpu'. Return true if so,
- * else false. If 'thread' is non-NULL, the local thread number within the
- * core is returned in it.
- */
-bool __weak arch_find_n_match_cpu_physical_id(struct device_node *cpun,
- int cpu, unsigned int *thread)
-{
- /* Check for non-standard "ibm,ppc-interrupt-server#s" property
- * for thread ids on PowerPC. If it doesn't exist fallback to
- * standard "reg" property.
- */
- if (IS_ENABLED(CONFIG_PPC) &&
- __of_find_n_match_cpu_property(cpun,
- "ibm,ppc-interrupt-server#s",
- cpu, thread))
- return true;
-
- return __of_find_n_match_cpu_property(cpun, "reg", cpu, thread);
-}
-
-/**
- * of_get_cpu_node - Get device node associated with the given logical CPU
- *
- * @cpu: CPU number(logical index) for which device node is required
- * @thread: if not NULL, local thread number within the physical core is
- * returned
- *
- * The main purpose of this function is to retrieve the device node for the
- * given logical CPU index. It should be used to initialize the of_node in
- * cpu device. Once of_node in cpu device is populated, all the further
- * references can use that instead.
- *
- * CPU logical to physical index mapping is architecture specific and is built
- * before booting secondary cores. This function uses arch_match_cpu_phys_id
- * which can be overridden by architecture specific implementation.
- *
- * Return: A node pointer for the logical cpu with refcount incremented, use
- * of_node_put() on it when done. Returns NULL if not found.
- */
-struct device_node *of_get_cpu_node(int cpu, unsigned int *thread)
-{
- struct device_node *cpun;
-
- for_each_of_cpu_node(cpun) {
- if (arch_find_n_match_cpu_physical_id(cpun, cpu, thread))
- return cpun;
- }
- return NULL;
-}
-EXPORT_SYMBOL(of_get_cpu_node);
-
-/**
- * of_cpu_node_to_id: Get the logical CPU number for a given device_node
- *
- * @cpu_node: Pointer to the device_node for CPU.
- *
- * Return: The logical CPU number of the given CPU device_node or -ENODEV if the
- * CPU is not found.
- */
-int of_cpu_node_to_id(struct device_node *cpu_node)
-{
- int cpu;
- bool found = false;
- struct device_node *np;
-
- for_each_possible_cpu(cpu) {
- np = of_cpu_device_node_get(cpu);
- found = (cpu_node == np);
- of_node_put(np);
- if (found)
- return cpu;
- }
-
- return -ENODEV;
-}
-EXPORT_SYMBOL(of_cpu_node_to_id);
-
-/**
- * of_get_cpu_state_node - Get CPU's idle state node at the given index
- *
- * @cpu_node: The device node for the CPU
- * @index: The index in the list of the idle states
- *
- * Two generic methods can be used to describe a CPU's idle states, either via
- * a flattened description through the "cpu-idle-states" binding or via the
- * hierarchical layout, using the "power-domains" and the "domain-idle-states"
- * bindings. This function check for both and returns the idle state node for
- * the requested index.
- *
- * Return: An idle state node if found at @index. The refcount is incremented
- * for it, so call of_node_put() on it when done. Returns NULL if not found.
- */
-struct device_node *of_get_cpu_state_node(struct device_node *cpu_node,
- int index)
-{
- struct of_phandle_args args;
- int err;
-
- err = of_parse_phandle_with_args(cpu_node, "power-domains",
- "#power-domain-cells", 0, &args);
- if (!err) {
- struct device_node *state_node =
- of_parse_phandle(args.np, "domain-idle-states", index);
-
- of_node_put(args.np);
- if (state_node)
- return state_node;
- }
-
- return of_parse_phandle(cpu_node, "cpu-idle-states", index);
-}
-EXPORT_SYMBOL(of_get_cpu_state_node);
-
/**
* __of_device_is_compatible() - Check if the node matches given constraints
* @device: pointer to node
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0
+#include <linux/cpu.h>
+#include <linux/kernel.h>
+#include <linux/of.h>
+
+/**
+ * of_get_cpu_hwid - Get the hardware ID from a CPU device node
+ *
+ * @cpun: CPU number(logical index) for which device node is required
+ * @thread: The local thread number to get the hardware ID for.
+ *
+ * Return: The hardware ID for the CPU node or ~0ULL if not found.
+ */
+u64 of_get_cpu_hwid(struct device_node *cpun, unsigned int thread)
+{
+ const __be32 *cell;
+ int ac, len;
+
+ ac = of_n_addr_cells(cpun);
+ cell = of_get_property(cpun, "reg", &len);
+ if (!cell || !ac || ((sizeof(*cell) * ac * (thread + 1)) > len))
+ return ~0ULL;
+
+ cell += ac * thread;
+ return of_read_number(cell, ac);
+}
+
+/*
+ * arch_match_cpu_phys_id - Match the given logical CPU and physical id
+ *
+ * @cpu: logical cpu index of a core/thread
+ * @phys_id: physical identifier of a core/thread
+ *
+ * CPU logical to physical index mapping is architecture specific.
+ * However this __weak function provides a default match of physical
+ * id to logical cpu index. phys_id provided here is usually values read
+ * from the device tree which must match the hardware internal registers.
+ *
+ * Returns true if the physical identifier and the logical cpu index
+ * correspond to the same core/thread, false otherwise.
+ */
+bool __weak arch_match_cpu_phys_id(int cpu, u64 phys_id)
+{
+ return (u32)phys_id == cpu;
+}
+
+/*
+ * Checks if the given "prop_name" property holds the physical id of the
+ * core/thread corresponding to the logical cpu 'cpu'. If 'thread' is not
+ * NULL, local thread number within the core is returned in it.
+ */
+static bool __of_find_n_match_cpu_property(struct device_node *cpun,
+ const char *prop_name, int cpu, unsigned int *thread)
+{
+ const __be32 *cell;
+ int ac, prop_len, tid;
+ u64 hwid;
+
+ ac = of_n_addr_cells(cpun);
+ cell = of_get_property(cpun, prop_name, &prop_len);
+ if (!cell && !ac && arch_match_cpu_phys_id(cpu, 0))
+ return true;
+ if (!cell || !ac)
+ return false;
+ prop_len /= sizeof(*cell) * ac;
+ for (tid = 0; tid < prop_len; tid++) {
+ hwid = of_read_number(cell, ac);
+ if (arch_match_cpu_phys_id(cpu, hwid)) {
+ if (thread)
+ *thread = tid;
+ return true;
+ }
+ cell += ac;
+ }
+ return false;
+}
+
+/*
+ * arch_find_n_match_cpu_physical_id - See if the given device node is
+ * for the cpu corresponding to logical cpu 'cpu'. Return true if so,
+ * else false. If 'thread' is non-NULL, the local thread number within the
+ * core is returned in it.
+ */
+bool __weak arch_find_n_match_cpu_physical_id(struct device_node *cpun,
+ int cpu, unsigned int *thread)
+{
+ /* Check for non-standard "ibm,ppc-interrupt-server#s" property
+ * for thread ids on PowerPC. If it doesn't exist fallback to
+ * standard "reg" property.
+ */
+ if (IS_ENABLED(CONFIG_PPC) &&
+ __of_find_n_match_cpu_property(cpun,
+ "ibm,ppc-interrupt-server#s",
+ cpu, thread))
+ return true;
+
+ return __of_find_n_match_cpu_property(cpun, "reg", cpu, thread);
+}
+
+/**
+ * of_get_cpu_node - Get device node associated with the given logical CPU
+ *
+ * @cpu: CPU number(logical index) for which device node is required
+ * @thread: if not NULL, local thread number within the physical core is
+ * returned
+ *
+ * The main purpose of this function is to retrieve the device node for the
+ * given logical CPU index. It should be used to initialize the of_node in
+ * cpu device. Once of_node in cpu device is populated, all the further
+ * references can use that instead.
+ *
+ * CPU logical to physical index mapping is architecture specific and is built
+ * before booting secondary cores. This function uses arch_match_cpu_phys_id
+ * which can be overridden by architecture specific implementation.
+ *
+ * Return: A node pointer for the logical cpu with refcount incremented, use
+ * of_node_put() on it when done. Returns NULL if not found.
+ */
+struct device_node *of_get_cpu_node(int cpu, unsigned int *thread)
+{
+ struct device_node *cpun;
+
+ for_each_of_cpu_node(cpun) {
+ if (arch_find_n_match_cpu_physical_id(cpun, cpu, thread))
+ return cpun;
+ }
+ return NULL;
+}
+EXPORT_SYMBOL(of_get_cpu_node);
+
+/**
+ * of_cpu_device_node_get: Get the CPU device_node for a given logical CPU number
+ *
+ * @cpu: The logical CPU number
+ *
+ * Return: Pointer to the device_node for CPU with its reference count
+ * incremented of the given logical CPU number or NULL if the CPU device_node
+ * is not found.
+ */
+struct device_node *of_cpu_device_node_get(int cpu)
+{
+ struct device *cpu_dev;
+ cpu_dev = get_cpu_device(cpu);
+ if (!cpu_dev)
+ return of_get_cpu_node(cpu, NULL);
+ return of_node_get(cpu_dev->of_node);
+}
+EXPORT_SYMBOL(of_cpu_device_node_get);
+
+/**
+ * of_cpu_node_to_id: Get the logical CPU number for a given device_node
+ *
+ * @cpu_node: Pointer to the device_node for CPU.
+ *
+ * Return: The logical CPU number of the given CPU device_node or -ENODEV if the
+ * CPU is not found.
+ */
+int of_cpu_node_to_id(struct device_node *cpu_node)
+{
+ int cpu;
+ bool found = false;
+ struct device_node *np;
+
+ for_each_possible_cpu(cpu) {
+ np = of_cpu_device_node_get(cpu);
+ found = (cpu_node == np);
+ of_node_put(np);
+ if (found)
+ return cpu;
+ }
+
+ return -ENODEV;
+}
+EXPORT_SYMBOL(of_cpu_node_to_id);
+
+/**
+ * of_get_cpu_state_node - Get CPU's idle state node at the given index
+ *
+ * @cpu_node: The device node for the CPU
+ * @index: The index in the list of the idle states
+ *
+ * Two generic methods can be used to describe a CPU's idle states, either via
+ * a flattened description through the "cpu-idle-states" binding or via the
+ * hierarchical layout, using the "power-domains" and the "domain-idle-states"
+ * bindings. This function check for both and returns the idle state node for
+ * the requested index.
+ *
+ * Return: An idle state node if found at @index. The refcount is incremented
+ * for it, so call of_node_put() on it when done. Returns NULL if not found.
+ */
+struct device_node *of_get_cpu_state_node(struct device_node *cpu_node,
+ int index)
+{
+ struct of_phandle_args args;
+ int err;
+
+ err = of_parse_phandle_with_args(cpu_node, "power-domains",
+ "#power-domain-cells", 0, &args);
+ if (!err) {
+ struct device_node *state_node =
+ of_parse_phandle(args.np, "domain-idle-states", index);
+
+ of_node_put(args.np);
+ if (state_node)
+ return state_node;
+ }
+
+ return of_parse_phandle(cpu_node, "cpu-idle-states", index);
+}
+EXPORT_SYMBOL(of_get_cpu_state_node);
#define OF_ROOT_NODE_SIZE_CELLS_DEFAULT 1
extern struct mutex of_mutex;
+extern raw_spinlock_t devtree_lock;
extern struct list_head aliases_lookup;
extern struct kset *of_kset;
#size-cells = <1>;
/* ranges here is to make sure we don't use it for
* dma-ranges translation */
- ranges = <0x70000000 0x70000000 0x40000000>,
+ ranges = <0x70000000 0x70000000 0x50000000>,
<0x00000000 0xd0000000 0x20000000>;
dma-ranges = <0x0 0x20000000 0x40000000>;
<0x42000000 0x0 0xc0000000 0x20000000 0x0 0x10000000>;
};
+ bus@a0000000 {
+ #address-cells = <3>;
+ #size-cells = <2>;
+ ranges = <0xf00baa 0x0 0x0 0xa0000000 0x0 0x100000>,
+ <0xf00bee 0x1 0x0 0xb0000000 0x0 0x200000>;
+ };
+
};
};
};
of_node_put(np);
}
+static void __init of_unittest_bus_ranges(void)
+{
+ struct device_node *np;
+ struct of_range range;
+ struct of_range_parser parser;
+ struct resource res;
+ int ret, count, i = 0;
+
+ np = of_find_node_by_path("/testcase-data/address-tests");
+ if (!np) {
+ pr_err("missing testcase data\n");
+ return;
+ }
+
+ if (of_range_parser_init(&parser, np)) {
+ pr_err("missing ranges property\n");
+ return;
+ }
+
+ ret = of_range_to_resource(np, 1, &res);
+ unittest(!ret, "of_range_to_resource returned error (%d) node %pOF\n",
+ ret, np);
+ unittest(resource_type(&res) == IORESOURCE_MEM,
+ "of_range_to_resource wrong resource type on node %pOF res=%pR\n",
+ np, &res);
+ unittest(res.start == 0xd0000000,
+ "of_range_to_resource wrong resource start address on node %pOF res=%pR\n",
+ np, &res);
+ unittest(resource_size(&res) == 0x20000000,
+ "of_range_to_resource wrong resource start address on node %pOF res=%pR\n",
+ np, &res);
+
+ count = of_range_count(&parser);
+ unittest(count == 2,
+ "of_range_count wrong size on node %pOF count=%d\n",
+ np, count);
+
+ /*
+ * Get the "ranges" from the device tree
+ */
+ for_each_of_range(&parser, &range) {
+ unittest(range.flags == IORESOURCE_MEM,
+ "for_each_of_range wrong flags on node %pOF flags=%x (expected %x)\n",
+ np, range.flags, IORESOURCE_MEM);
+ if (!i) {
+ unittest(range.size == 0x50000000,
+ "for_each_of_range wrong size on node %pOF size=%llx\n",
+ np, range.size);
+ unittest(range.cpu_addr == 0x70000000,
+ "for_each_of_range wrong CPU addr (%llx) on node %pOF",
+ range.cpu_addr, np);
+ unittest(range.bus_addr == 0x70000000,
+ "for_each_of_range wrong bus addr (%llx) on node %pOF",
+ range.pci_addr, np);
+ } else {
+ unittest(range.size == 0x20000000,
+ "for_each_of_range wrong size on node %pOF size=%llx\n",
+ np, range.size);
+ unittest(range.cpu_addr == 0xd0000000,
+ "for_each_of_range wrong CPU addr (%llx) on node %pOF",
+ range.cpu_addr, np);
+ unittest(range.bus_addr == 0x00000000,
+ "for_each_of_range wrong bus addr (%llx) on node %pOF",
+ range.pci_addr, np);
+ }
+ i++;
+ }
+
+ of_node_put(np);
+}
+
+static void __init of_unittest_bus_3cell_ranges(void)
+{
+ struct device_node *np;
+ struct of_range range;
+ struct of_range_parser parser;
+ int i = 0;
+
+ np = of_find_node_by_path("/testcase-data/address-tests/bus@a0000000");
+ if (!np) {
+ pr_err("missing testcase data\n");
+ return;
+ }
+
+ if (of_range_parser_init(&parser, np)) {
+ pr_err("missing ranges property\n");
+ return;
+ }
+
+ /*
+ * Get the "ranges" from the device tree
+ */
+ for_each_of_range(&parser, &range) {
+ if (!i) {
+ unittest(range.flags == 0xf00baa,
+ "for_each_of_range wrong flags on node %pOF flags=%x\n",
+ np, range.flags);
+ unittest(range.size == 0x100000,
+ "for_each_of_range wrong size on node %pOF size=%llx\n",
+ np, range.size);
+ unittest(range.cpu_addr == 0xa0000000,
+ "for_each_of_range wrong CPU addr (%llx) on node %pOF",
+ range.cpu_addr, np);
+ unittest(range.bus_addr == 0x0,
+ "for_each_of_range wrong bus addr (%llx) on node %pOF",
+ range.pci_addr, np);
+ } else {
+ unittest(range.flags == 0xf00bee,
+ "for_each_of_range wrong flags on node %pOF flags=%x\n",
+ np, range.flags);
+ unittest(range.size == 0x200000,
+ "for_each_of_range wrong size on node %pOF size=%llx\n",
+ np, range.size);
+ unittest(range.cpu_addr == 0xb0000000,
+ "for_each_of_range wrong CPU addr (%llx) on node %pOF",
+ range.cpu_addr, np);
+ unittest(range.bus_addr == 0x100000000,
+ "for_each_of_range wrong bus addr (%llx) on node %pOF",
+ range.pci_addr, np);
+ }
+ i++;
+ }
+
+ of_node_put(np);
+}
+
+static void __init of_unittest_reg(void)
+{
+ struct device_node *np;
+ int ret;
+ u64 addr, size;
+
+ np = of_find_node_by_path("/testcase-data/address-tests/bus@80000000/device@1000");
+ if (!np) {
+ pr_err("missing testcase data\n");
+ return;
+ }
+
+ ret = of_property_read_reg(np, 0, &addr, &size);
+ unittest(!ret, "of_property_read_reg(%pOF) returned error %d\n",
+ np, ret);
+ unittest(addr == 0x1000, "of_property_read_reg(%pOF) untranslated address (%llx) incorrect\n",
+ np, addr);
+
+ of_node_put(np);
+}
+
static void __init of_unittest_parse_interrupts(void)
{
struct device_node *np;
of_unittest_dma_get_max_cpu_address();
of_unittest_parse_dma_ranges();
of_unittest_pci_dma_ranges();
+ of_unittest_bus_ranges();
+ of_unittest_bus_3cell_ranges();
+ of_unittest_reg();
of_unittest_match_node();
of_unittest_platform_populate();
of_unittest_overlay();
#include <linux/cpu.h>
#include <linux/errno.h>
#include <linux/device.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
#include <linux/pm_domain.h>
#include <linux/slab.h>
#include <linux/export.h>
*/
regs = readb(p->regs);
opts = of_find_node_by_path("/options");
- if (opts &&
- of_get_property(opts, "d7s-flipped?", NULL))
- p->flipped = true;
+ if (opts)
+ p->flipped = of_property_read_bool(opts, "d7s-flipped?");
if (p->flipped)
regs |= D7S_FLIP;
#include <linux/bits.h>
#include <linux/clk.h>
#include <linux/completion.h>
+#include <linux/cpu.h>
#include <linux/cpuidle.h>
#include <linux/debugfs.h>
#include <linux/device.h>
*/
#define pr_fmt(fmt) "cpuidle cooling: " fmt
+#include <linux/cpu.h>
#include <linux/cpu_cooling.h>
#include <linux/cpuidle.h>
#include <linux/device.h>
#include <linux/err.h>
#include <linux/idle_inject.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
#include <linux/slab.h>
#include <linux/thermal.h>
if (!node)
return 0;
- ret = of_find_property(node, "fsl,hv-version", NULL) != NULL;
+ ret = of_property_present(node, "fsl,hv-version");
of_node_put(node);
* driver it high/low like we are in full control of the line and
* open drain will happen transparently.
*/
- if (of_get_property(np, "linux,open-drain", NULL))
+ if (of_property_present(np, "linux,open-drain"))
gflags = GPIOD_OUT_LOW;
pdev->dev.platform_data = pdata;
#include <linux/kobject.h>
#include <linux/notifier.h>
#include <linux/of.h>
-#include <linux/of_device.h>
#include <linux/pm_opp.h>
#include <linux/pm_qos.h>
#include <linux/spinlock.h>
#include <linux/errno.h>
#include <linux/kobject.h>
#include <linux/mod_devicetable.h>
-#include <linux/spinlock.h>
-#include <linux/topology.h>
-#include <linux/notifier.h>
#include <linux/property.h>
#include <linux/list.h>
#include <asm/byteorder.h>
-#include <asm/errno.h>
typedef u32 phandle;
typedef u32 ihandle;
extern struct device_node *of_chosen;
extern struct device_node *of_aliases;
extern struct device_node *of_stdout;
-extern raw_spinlock_t devtree_lock;
/*
* struct device_node flag descriptions
const char *name,
int *lenp);
extern struct device_node *of_get_cpu_node(int cpu, unsigned int *thread);
+extern struct device_node *of_cpu_device_node_get(int cpu);
+extern int of_cpu_node_to_id(struct device_node *np);
extern struct device_node *of_get_next_cpu_node(struct device_node *prev);
extern struct device_node *of_get_cpu_state_node(struct device_node *cpu_node,
int index);
extern int of_n_size_cells(struct device_node *np);
extern const struct of_device_id *of_match_node(
const struct of_device_id *matches, const struct device_node *node);
+extern const void *of_device_get_match_data(const struct device *dev);
extern int of_modalias_node(struct device_node *node, char *modalias, int len);
extern void of_print_phandle_args(const char *msg, const struct of_phandle_args *args);
extern int __of_parse_phandle_with_args(const struct device_node *np,
bool of_console_check(struct device_node *dn, char *name, int index);
-extern int of_cpu_node_to_id(struct device_node *np);
-
int of_map_id(struct device_node *np, u32 id,
const char *map_name, const char *map_mask_name,
struct device_node **target, u32 *id_out);
return NULL;
}
+static inline struct device_node *of_cpu_device_node_get(int cpu)
+{
+ return NULL;
+}
+
+static inline int of_cpu_node_to_id(struct device_node *np)
+{
+ return -ENODEV;
+}
+
static inline struct device_node *of_get_next_cpu_node(struct device_node *prev)
{
return NULL;
{
}
-static inline int of_cpu_node_to_id(struct device_node *np)
-{
- return -ENODEV;
-}
-
static inline int of_map_id(struct device_node *np, u32 id,
const char *map_name, const char *map_mask_name,
struct device_node **target, u32 *id_out)
return PHYS_ADDR_MAX;
}
+static inline const void *of_device_get_match_data(const struct device *dev)
+{
+ return NULL;
+}
+
#define of_match_ptr(_ptr) NULL
#define of_match_node(_matches, _node) NULL
#endif /* CONFIG_OF */
OF_RECONFIG_CHANGE_REMOVE,
};
+struct notifier_block;
+
#ifdef CONFIG_OF_DYNAMIC
extern int of_reconfig_notifier_register(struct notifier_block *);
extern int of_reconfig_notifier_unregister(struct notifier_block *);
for (; of_pci_range_parser_one(parser, range);)
#define for_each_of_range for_each_of_pci_range
+/*
+ * of_range_count - Get the number of "ranges" or "dma-ranges" entries
+ * @parser: Parser state initialized by of_range_parser_init()
+ *
+ * Returns the number of entries or 0 if none.
+ *
+ * Note that calling this within or after the for_each_of_range() iterator will
+ * be inaccurate giving the number of entries remaining.
+ */
+static inline int of_range_count(const struct of_range_parser *parser)
+{
+ if (!parser || !parser->node || !parser->range || parser->range == parser->end)
+ return 0;
+ return (parser->end - parser->range) / (parser->na + parser->pna + parser->ns);
+}
+
/* Translate a DMA address from device space to CPU space */
extern u64 of_translate_dma_address(struct device_node *dev,
const __be32 *in_addr);
extern const __be32 *__of_get_address(struct device_node *dev, int index, int bar_no,
u64 *size, unsigned int *flags);
+int of_property_read_reg(struct device_node *np, int idx, u64 *addr, u64 *size);
+
extern int of_pci_range_parser_init(struct of_pci_range_parser *parser,
struct device_node *node);
extern int of_pci_dma_range_parser_init(struct of_pci_range_parser *parser,
extern int of_pci_range_to_resource(struct of_pci_range *range,
struct device_node *np,
struct resource *res);
+extern int of_range_to_resource(struct device_node *np, int index,
+ struct resource *res);
extern bool of_dma_is_coherent(struct device_node *np);
#else /* CONFIG_OF_ADDRESS */
static inline void __iomem *of_io_request_and_map(struct device_node *device,
return NULL;
}
+static inline int of_property_read_reg(struct device_node *np, int idx, u64 *addr, u64 *size)
+{
+ return -ENOSYS;
+}
+
static inline int of_pci_range_parser_init(struct of_pci_range_parser *parser,
struct device_node *node)
{
return -ENOSYS;
}
+static inline int of_range_to_resource(struct device_node *np, int index,
+ struct resource *res)
+{
+ return -ENOSYS;
+}
+
static inline bool of_dma_is_coherent(struct device_node *np)
{
return false;
#ifndef _LINUX_OF_DEVICE_H
#define _LINUX_OF_DEVICE_H
-#include <linux/cpu.h>
#include <linux/platform_device.h>
#include <linux/of_platform.h> /* temporary until merge */
#include <linux/of.h>
-#include <linux/mod_devicetable.h>
struct device;
+struct of_device_id;
+struct kobj_uevent_env;
#ifdef CONFIG_OF
extern const struct of_device_id *of_match_device(
return of_match_device(drv->of_match_table, dev) != NULL;
}
-extern int of_device_add(struct platform_device *pdev);
-extern int of_device_register(struct platform_device *ofdev);
-extern void of_device_unregister(struct platform_device *ofdev);
-
-extern const void *of_device_get_match_data(const struct device *dev);
-
extern ssize_t of_device_modalias(struct device *dev, char *str, ssize_t len);
extern int of_device_request_module(struct device *dev);
extern void of_device_uevent(const struct device *dev, struct kobj_uevent_env *env);
extern int of_device_uevent_modalias(const struct device *dev, struct kobj_uevent_env *env);
-static inline struct device_node *of_cpu_device_node_get(int cpu)
-{
- struct device *cpu_dev;
- cpu_dev = get_cpu_device(cpu);
- if (!cpu_dev)
- return of_get_cpu_node(cpu, NULL);
- return of_node_get(cpu_dev->of_node);
-}
-
int of_dma_configure_id(struct device *dev,
struct device_node *np,
bool force_dma, const u32 *id);
static inline void of_device_uevent(const struct device *dev,
struct kobj_uevent_env *env) { }
-static inline const void *of_device_get_match_data(const struct device *dev)
-{
- return NULL;
-}
-
static inline int of_device_modalias(struct device *dev,
char *str, ssize_t len)
{
return NULL;
}
-static inline struct device_node *of_cpu_device_node_get(int cpu)
-{
- return NULL;
-}
-
static inline int of_dma_configure_id(struct device *dev,
struct device_node *np,
bool force_dma,
* <benh@kernel.crashing.org>
*/
-#include <linux/device.h>
#include <linux/mod_devicetable.h>
-#include <linux/pm.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
+struct device;
+struct of_device_id;
+
/**
* struct of_dev_auxdata - lookup table entry for device names & platform_data
* @compatible: compatible value of node to match against node
extern struct platform_device *of_device_alloc(struct device_node *np,
const char *bus_id,
struct device *parent);
+
+extern int of_device_add(struct platform_device *pdev);
+extern int of_device_register(struct platform_device *ofdev);
+extern void of_device_unregister(struct platform_device *ofdev);
+
#ifdef CONFIG_OF
extern struct platform_device *of_find_device_by_node(struct device_node *np);
#else
projects / linux-block.git / commitdiff