Adding upstream version 4.19.249.upstream/4.19.249upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 184 insertions, 0 deletions

diff --git a/arch/sparc/include/asm/oplib_32.h b/arch/sparc/include/asm/oplib_32.h
new file mode 100644
index 000000000..d1cf3a27a
--- /dev/null
+++ b/arch/sparc/include/asm/oplib_32.h
@@ -0,0 +1,184 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * oplib.h:  Describes the interface and available routines in the
+ *           Linux Prom library.
+ *
+ * Copyright (C) 1995 David S. Miller (davem@caip.rutgers.edu)
+ */
+
+#ifndef __SPARC_OPLIB_H
+#define __SPARC_OPLIB_H
+
+#include <asm/openprom.h>
+#include <linux/spinlock.h>
+#include <linux/compiler.h>
+
+/* The master romvec pointer... */
+extern struct linux_romvec *romvec;
+
+/* Enumeration to describe the prom major version we have detected. */
+enum prom_major_version {
+	PROM_V0,      /* Original sun4c V0 prom */
+	PROM_V2,      /* sun4c and early sun4m V2 prom */
+	PROM_V3,      /* sun4m and later, up to sun4d/sun4e machines V3 */
+	PROM_P1275,   /* IEEE compliant ISA based Sun PROM, only sun4u */
+};
+
+extern enum prom_major_version prom_vers;
+/* Revision, and firmware revision. */
+extern unsigned int prom_rev, prom_prev;
+
+/* Root node of the prom device tree, this stays constant after
+ * initialization is complete.
+ */
+extern phandle prom_root_node;
+
+/* Pointer to prom structure containing the device tree traversal
+ * and usage utility functions.  Only prom-lib should use these,
+ * users use the interface defined by the library only!
+ */
+extern struct linux_nodeops *prom_nodeops;
+
+/* The functions... */
+
+/* You must call prom_init() before using any of the library services,
+ * preferably as early as possible.  Pass it the romvec pointer.
+ */
+void prom_init(struct linux_romvec *rom_ptr);
+
+/* Boot argument acquisition, returns the boot command line string. */
+char *prom_getbootargs(void);
+
+/* Miscellaneous routines, don't really fit in any category per se. */
+
+/* Reboot the machine with the command line passed. */
+void prom_reboot(char *boot_command);
+
+/* Evaluate the forth string passed. */
+void prom_feval(char *forth_string);
+
+/* Enter the prom, with possibility of continuation with the 'go'
+ * command in newer proms.
+ */
+void prom_cmdline(void);
+
+/* Enter the prom, with no chance of continuation for the stand-alone
+ * which calls this.
+ */
+void __noreturn prom_halt(void);
+
+/* Set the PROM 'sync' callback function to the passed function pointer.
+ * When the user gives the 'sync' command at the prom prompt while the
+ * kernel is still active, the prom will call this routine.
+ *
+ * XXX The arguments are different on V0 vs. V2->higher proms, grrr! XXX
+ */
+typedef void (*sync_func_t)(void);
+void prom_setsync(sync_func_t func_ptr);
+
+/* Acquire the IDPROM of the root node in the prom device tree.  This
+ * gets passed a buffer where you would like it stuffed.  The return value
+ * is the format type of this idprom or 0xff on error.
+ */
+unsigned char prom_get_idprom(char *idp_buffer, int idpbuf_size);
+
+/* Get the prom major version. */
+int prom_version(void);
+
+/* Get the prom plugin revision. */
+int prom_getrev(void);
+
+/* Get the prom firmware revision. */
+int prom_getprev(void);
+
+/* Write a buffer of characters to the console. */
+void prom_console_write_buf(const char *buf, int len);
+
+/* Prom's internal routines, don't use in kernel/boot code. */
+__printf(1, 2) void prom_printf(const char *fmt, ...);
+void prom_write(const char *buf, unsigned int len);
+
+/* Multiprocessor operations... */
+
+/* Start the CPU with the given device tree node, context table, and context
+ * at the passed program counter.
+ */
+int prom_startcpu(int cpunode, struct linux_prom_registers *context_table,
+		  int context, char *program_counter);
+
+/* Initialize the memory lists based upon the prom version. */
+void prom_meminit(void);
+
+/* PROM device tree traversal functions... */
+
+/* Get the child node of the given node, or zero if no child exists. */
+phandle prom_getchild(phandle parent_node);
+
+/* Get the next sibling node of the given node, or zero if no further
+ * siblings exist.
+ */
+phandle prom_getsibling(phandle node);
+
+/* Get the length, at the passed node, of the given property type.
+ * Returns -1 on error (ie. no such property at this node).
+ */
+int prom_getproplen(phandle thisnode, const char *property);
+
+/* Fetch the requested property using the given buffer.  Returns
+ * the number of bytes the prom put into your buffer or -1 on error.
+ */
+int __must_check prom_getproperty(phandle thisnode, const char *property,
+				  char *prop_buffer, int propbuf_size);
+
+/* Acquire an integer property. */
+int prom_getint(phandle node, char *property);
+
+/* Acquire an integer property, with a default value. */
+int prom_getintdefault(phandle node, char *property, int defval);
+
+/* Acquire a boolean property, 0=FALSE 1=TRUE. */
+int prom_getbool(phandle node, char *prop);
+
+/* Acquire a string property, null string on error. */
+void prom_getstring(phandle node, char *prop, char *buf, int bufsize);
+
+/* Search all siblings starting at the passed node for "name" matching
+ * the given string.  Returns the node on success, zero on failure.
+ */
+phandle prom_searchsiblings(phandle node_start, char *name);
+
+/* Returns the next property after the passed property for the given
+ * node.  Returns null string on failure.
+ */
+char *prom_nextprop(phandle node, char *prev_property, char *buffer);
+
+/* Returns phandle of the path specified */
+phandle prom_finddevice(char *name);
+
+/* Set the indicated property at the given node with the passed value.
+ * Returns the number of bytes of your value that the prom took.
+ */
+int prom_setprop(phandle node, const char *prop_name, char *prop_value,
+		 int value_size);
+
+phandle prom_inst2pkg(int);
+
+/* Dorking with Bus ranges... */
+
+/* Apply promlib probes OBIO ranges to registers. */
+void prom_apply_obio_ranges(struct linux_prom_registers *obioregs, int nregs);
+
+/* Apply ranges of any prom node (and optionally parent node as well) to registers. */
+void prom_apply_generic_ranges(phandle node, phandle parent,
+			       struct linux_prom_registers *sbusregs, int nregs);
+
+void prom_ranges_init(void);
+
+/* CPU probing helpers.  */
+int cpu_find_by_instance(int instance, phandle *prom_node, int *mid);
+int cpu_find_by_mid(int mid, phandle *prom_node);
+int cpu_get_hwmid(phandle prom_node);
+
+extern spinlock_t prom_lock;
+
+#endif /* !(__SPARC_OPLIB_H) */