Add qemu 2.4.0

Change-Id: Ic99cbad4b61f8b127b7dc74d04576c0bcbaaf4f5
Signed-off-by: Yang Zhang <yang.z.zhang@intel.com>

1 files changed, 715 insertions, 0 deletions

diff --git a/qemu/roms/SLOF/clients/net-snk/oflib/of.c b/qemu/roms/SLOF/clients/net-snk/oflib/of.c
new file mode 100644
index 000000000..5c502ac60
--- /dev/null
+++ b/qemu/roms/SLOF/clients/net-snk/oflib/of.c
@@ -0,0 +1,715 @@
+/******************************************************************************
+ * Copyright (c) 2004, 2008 IBM Corporation
+ * All rights reserved.
+ * This program and the accompanying materials
+ * are made available under the terms of the BSD License
+ * which accompanies this distribution, and is available at
+ * http://www.opensource.org/licenses/bsd-license.php
+ *
+ * Contributors:
+ *     IBM Corporation - initial implementation
+ *****************************************************************************/
+
+#include <stdint.h>
+#include <of.h>
+#include <rtas.h>
+#include <string.h>
+#include <libbootmsg.h>
+#include <kernel.h>
+
+extern void call_client_interface(of_arg_t *);
+
+static int claim_rc = 0;
+static void* client_start;
+static size_t client_size;
+
+static inline int
+of_0_1(const char *serv)
+{
+	of_arg_t arg = {
+		p32cast serv,
+		0, 1,
+		{ 0 }
+	};
+
+	call_client_interface(&arg);
+
+	return arg.args[0];
+}
+
+static inline void
+of_1_0(const char *serv, int arg0)
+{
+	of_arg_t arg = {
+		p32cast serv,
+		1, 0,
+		{arg0, 0}
+	};
+
+	call_client_interface(&arg);
+}
+
+static inline unsigned int
+of_1_1(const char *serv, int arg0)
+{
+	of_arg_t arg = {
+		p32cast serv,
+		1, 1,
+		{arg0, 0}
+	};
+
+	call_client_interface(&arg);
+	return arg.args[1];
+}
+
+static inline unsigned int
+of_1_2(const char *serv, int arg0, int *ret0)
+{
+        of_arg_t arg = {
+                p32cast serv,
+                1, 2,
+                {arg0, 0, 0}
+        };
+
+        call_client_interface(&arg);
+        *ret0 = arg.args[2];
+        return arg.args[1];
+}
+
+static inline void
+of_2_0(const char *serv, int arg0, int arg1)
+{
+	of_arg_t arg = {
+		p32cast serv,
+		2, 0,
+		{arg0, arg1, 0}
+	};
+
+	call_client_interface(&arg);
+}
+
+static inline unsigned int
+of_2_1(const char *serv, int arg0, int arg1)
+{
+	of_arg_t arg = {
+		p32cast serv,
+		2, 1,
+		{arg0, arg1, 0}
+	};
+
+	call_client_interface(&arg);
+	return arg.args[2];
+}
+
+static inline unsigned int
+of_2_2(const char *serv, int arg0, int arg1, int *ret0)
+{
+	of_arg_t arg = {
+		p32cast serv,
+		2, 2,
+		{arg0, arg1, 0, 0}
+	};
+
+	call_client_interface(&arg);
+	*ret0 = arg.args[3];
+	return arg.args[2];
+}
+
+static inline unsigned int
+of_2_3(const char *serv, int arg0, int arg1, int *ret0, int *ret1)
+{
+	of_arg_t arg = {
+		p32cast serv,
+		2, 3,
+		{arg0, arg1, 0, 0, 0}
+	};
+
+	call_client_interface(&arg);
+	*ret0 = arg.args[3];
+	*ret1 = arg.args[4];
+	return arg.args[2];
+}
+
+static inline void
+of_3_0(const char *serv, int arg0, int arg1, int arg2)
+{
+	of_arg_t arg = {
+		p32cast serv,
+		3, 0,
+		{arg0, arg1, arg2, 0}
+	};
+
+	call_client_interface(&arg);
+	return;
+}
+
+static inline unsigned int
+of_3_1(const char *serv, int arg0, int arg1, int arg2)
+{
+	of_arg_t arg = {
+		p32cast serv,
+		3, 1,
+		{arg0, arg1, arg2, 0}
+	};
+
+	call_client_interface(&arg);
+	return arg.args[3];
+}
+
+static inline unsigned int
+of_3_2(const char *serv, int arg0, int arg1, int arg2, int *ret0)
+{
+	of_arg_t arg = {
+		p32cast serv,
+		3, 2,
+		{arg0, arg1, arg2, 0, 0}
+	};
+
+	call_client_interface(&arg);
+	*ret0 = arg.args[4];
+	return arg.args[3];
+}
+
+static inline unsigned int
+of_3_3(const char *serv, int arg0, int arg1, int arg2, int *ret0, int *ret1)
+{
+	of_arg_t arg = {
+		p32cast serv,
+		3, 3,
+		{arg0, arg1, arg2, 0, 0, 0}
+	};
+
+	call_client_interface(&arg);
+	*ret0 = arg.args[4];
+	*ret1 = arg.args[5];
+	return arg.args[3];
+}
+
+static inline unsigned int
+of_4_1(const char *serv, int arg0, int arg1, int arg2, int arg3)
+{
+	of_arg_t arg = {
+		p32cast serv,
+		4, 1,
+		{arg0, arg1, arg2, arg3, 0}
+	};
+
+	call_client_interface(&arg);
+	return arg.args[4];
+}
+
+int
+of_test(const char *name)
+{
+	return (int) of_1_1("test", p32cast name);
+}
+
+int
+of_interpret_1(void *s, void *ret)
+{
+	return of_1_2("interpret", p32cast s, ret);
+}
+
+void
+of_close(ihandle_t ihandle)
+{
+	of_1_0("close", ihandle);
+}
+
+int
+of_write(ihandle_t ihandle, void *s, int len)
+{
+	return of_3_1("write", ihandle, p32cast s, len);
+}
+
+int
+of_read(ihandle_t ihandle, void *s, int len)
+{
+	return of_3_1("read", ihandle, p32cast s, len);
+}
+
+int
+of_seek(ihandle_t ihandle, int poshi, int poslo)
+{
+	return of_3_1("seek", ihandle, poshi, poslo);
+}
+
+int
+of_getprop(phandle_t phandle, const char *name, void *buf, int len)
+{
+	return of_4_1("getprop", phandle, p32cast name, p32cast buf, len);
+}
+
+phandle_t
+of_peer(phandle_t phandle)
+{
+	return (phandle_t) of_1_1("peer", phandle);
+}
+
+phandle_t
+of_child(phandle_t phandle)
+{
+	return (phandle_t) of_1_1("child", phandle);
+}
+
+phandle_t
+of_parent(phandle_t phandle)
+{
+	return (phandle_t) of_1_1("parent", phandle);
+}
+
+phandle_t
+of_instance_to_package(ihandle_t ihandle)
+{
+	return (phandle_t) of_1_1("instance-to-package", ihandle);
+}
+
+
+phandle_t
+of_finddevice(const char *name)
+{
+	return (phandle_t) of_1_1("finddevice", p32cast name);
+}
+
+ihandle_t
+of_open(const char *name)
+{
+	return (ihandle_t) of_1_1("open", p32cast name);
+}
+
+void *
+of_claim(void *start, unsigned int size, unsigned int align)
+{
+	return(void *)(long)(size_t)of_3_1("claim", p32cast start, size, align);
+}
+
+void
+of_release(void *start, unsigned int size)
+{
+	(void) of_2_0("release", p32cast start, size);
+}
+
+void *
+of_call_method_3(const char *name, ihandle_t ihandle, int arg0)
+{
+	int entry, rc;
+	rc = of_3_2("call-method", p32cast name, ihandle, arg0, &entry);
+	return rc != 0 ? 0 : (void *) (long) entry;
+}
+
+int
+vpd_read(unsigned int offset, unsigned int length, char *data)
+{
+	int result;
+	long tmp = (long) data;
+	result = of_3_1("rtas-read-vpd", offset, length, (int) tmp);
+	return result;
+}
+
+int
+vpd_write(unsigned int offset, unsigned int length, char *data)
+{
+	int result;
+	long tmp = (long) data;
+	result = of_3_1("rtas-write-vpd", offset, length, (int) tmp);
+	return result;
+}
+
+static void
+ipmi_oem_led_set(int type, int instance, int state)
+{
+	return of_3_0("set-led", type, instance, state);
+}
+
+int
+write_mm_log(char *data, unsigned int length, unsigned short type)
+{
+	long tmp = (long) data;
+
+	ipmi_oem_led_set(2, 0, 1);
+	return of_3_1("write-mm-log", (int) tmp, length, type);
+}
+
+int
+of_yield(void)
+{
+	return of_0_1("yield");
+}
+
+void *
+of_set_callback(void *addr)
+{
+	return (void *) (long) (size_t) of_1_1("set-callback", p32cast addr);
+}
+
+void
+bootmsg_warning(short id, const char *str, short lvl)
+{
+	(void) of_3_0("bootmsg-warning", id, lvl, p32cast str);
+}
+
+void
+bootmsg_error(short id, const char *str)
+{
+	(void) of_2_0("bootmsg-error", id, p32cast str);
+}
+
+/*
+void
+bootmsg_debugcp(short id, const char *str, short lvl)
+{
+	(void) of_3_0("bootmsg-debugcp", id, lvl, p32cast str);
+}
+
+void
+bootmsg_cp(short id)
+{
+	(void) of_1_0("bootmsg-cp", id);
+}
+*/
+
+#define CONFIG_SPACE 0
+#define IO_SPACE 1
+#define MEM_SPACE 2
+
+#define ASSIGNED_ADDRESS_PROPERTY 0
+#define REG_PROPERTY 1
+
+#define DEBUG_TRANSLATE_ADDRESS 0
+#if DEBUG_TRANSLATE_ADDRESS != 0
+#define DEBUG_TR(str...) printf(str)
+#else
+#define DEBUG_TR(str...)
+#endif
+
+/**
+ * pci_address_type tries to find the type for which a
+ * mapping should be done. This is PCI specific and is done by
+ * looking at the first 32bit of the phys-addr in
+ * assigned-addresses
+ *
+ * @param node     the node of the device which requests
+ *                 translatation
+ * @param address  the address which needs to be translated
+ * @param prop_type the type of the property to search in (either REG_PROPERTY or ASSIGNED_ADDRESS_PROPERTY)
+ * @return         the corresponding type (config, i/o, mem)
+ */
+static int
+pci_address_type(phandle_t node, uint64_t address, uint8_t prop_type)
+{
+	char *prop_name = "assigned-addresses";
+	if (prop_type == REG_PROPERTY)
+		prop_name = "reg";
+	/* #address-cells */
+	const unsigned int nac = 3;	//PCI
+	/* #size-cells */
+	const unsigned int nsc = 2;	//PCI
+	/* up to 11 pairs of (phys-addr(3) size(2)) */
+	unsigned char buf[11 * (nac + nsc) * sizeof(int)];
+	unsigned int *assigned_ptr;
+	int result = -1;
+	int len;
+	len = of_getprop(node, prop_name, buf, 11 * (nac + nsc) * sizeof(int));
+	assigned_ptr = (unsigned int *) &buf[0];
+	while (len > 0) {
+		if ((prop_type == REG_PROPERTY)
+		    && ((assigned_ptr[0] & 0xFF) != 0)) {
+			//BARs and Expansion ROM must be in assigned-addresses... so in reg
+			// we only look for those without config space offset set...
+			assigned_ptr += (nac + nsc);
+			len -= (nac + nsc) * sizeof(int);
+			continue;
+		}
+		DEBUG_TR("%s %x size %x\n", prop_name, assigned_ptr[2],
+			 assigned_ptr[4]);
+		if (address >= assigned_ptr[2]
+		    && address <= assigned_ptr[2] + assigned_ptr[4]) {
+			DEBUG_TR("found a match\n");
+			result = (assigned_ptr[0] & 0x03000000) >> 24;
+			break;
+		}
+		assigned_ptr += (nac + nsc);
+		len -= (nac + nsc) * sizeof(int);
+	}
+	/* this can only handle 32bit memory space and should be
+	 * removed as soon as translations for 64bit are available */
+	return (result == 3) ? MEM_SPACE : result;
+}
+
+/**
+ * this is a hack which returns the lower 64 bit of any number of cells
+ * all the higher bits will silently discarded
+ * right now this works pretty good as long 64 bit addresses is all we want
+ *
+ * @param addr  a pointer to the first address cell
+ * @param nc    number of cells addr points to
+ * @return      the lower 64 bit to which addr points
+ */
+static uint64_t
+get_dt_address(uint32_t *addr, uint32_t nc)
+{
+	uint64_t result = 0;
+	while (nc--)
+		result = (result << 32) | *(addr++);
+	return result;
+}
+
+/**
+ * this functions tries to find a mapping for the given address
+ * it assumes that if we have #address-cells == 3 that we are trying
+ * to do a PCI translation
+ *
+ * @param  addr    a pointer to the address that should be translated
+ *                 if a translation has been found the address will
+ *                 be modified
+ * @param  type    this is required for PCI devices to find the
+ *                 correct translation
+ * @param ranges   this is one "range" containing the translation
+ *                 information (one range = nac + pnac + nsc)
+ * @param nac      the OF property #address-cells
+ * @param nsc      the OF property #size-cells
+ * @param pnac     the OF property #address-cells from the parent node
+ * @return         -1 if no translation was possible; else 0
+ */
+static int
+map_one_range(uint64_t *addr, int type, uint32_t *ranges, uint32_t nac,
+	      uint32_t nsc, uint32_t pnac)
+{
+	long offset;
+	/* cm - child mapping */
+	/* pm - parent mapping */
+	uint64_t cm, size, pm;
+	/* only check for the type if nac == 3 (PCI) */
+	DEBUG_TR("type %x, nac %x\n", ranges[0], nac);
+	if (((ranges[0] & 0x03000000) >> 24) != type && nac == 3)
+		return -1;
+	/* okay, it is the same type let's see if we find a mapping */
+	size = get_dt_address(ranges + nac + pnac, nsc);
+	if (nac == 3)		/* skip type if PCI */
+		cm = get_dt_address(ranges + 1, nac - 1);
+	else
+		cm = get_dt_address(ranges, nac);
+
+	DEBUG_TR("\t\tchild_mapping %lx\n", cm);
+	DEBUG_TR("\t\tsize %lx\n", size);
+	DEBUG_TR("\t\t*address %lx\n", (uint64_t) * addr);
+	if (cm + size <= (uint64_t) * addr || cm > (uint64_t) * addr)
+		/* it is not inside the mapping range */
+		return -1;
+	/* get the offset */
+	offset = *addr - cm;
+	/* and add the offset on the parent mapping */
+	if (pnac == 3)		/* skip type if PCI */
+		pm = get_dt_address(ranges + nac + 1, pnac - 1);
+	else
+		pm = get_dt_address(ranges + nac, pnac);
+	DEBUG_TR("\t\tparent_mapping %lx\n", pm);
+	*addr = pm + offset;
+	DEBUG_TR("\t\t*address %lx\n", *addr);
+	return 0;
+}
+
+/**
+ * translate_address_dev tries to translate the device specific address
+ * to a host specific address by walking up in the device tree
+ *
+ * @param address  a pointer to a 64 bit value which will be
+ *                 translated
+ * @param current_node phandle of the device from which the
+ *                     translation will be started
+ */
+void
+translate_address_dev(uint64_t *addr, phandle_t current_node)
+{
+	unsigned char buf[1024];
+	phandle_t parent;
+	unsigned int pnac;
+	unsigned int nac;
+	unsigned int nsc;
+	int addr_type;
+	int len;
+	unsigned int *ranges;
+	unsigned int one_range;
+	DEBUG_TR("translate address %lx, node: %lx\n", *addr, current_node);
+	of_getprop(current_node, "name", buf, 400);
+	DEBUG_TR("current node: %s\n", buf);
+	addr_type =
+	    pci_address_type(current_node, *addr, ASSIGNED_ADDRESS_PROPERTY);
+	if (addr_type == -1) {
+		// check in "reg" property if not found in "assigned-addresses"
+		addr_type = pci_address_type(current_node, *addr, REG_PROPERTY);
+	}
+	DEBUG_TR("address_type %x\n", addr_type);
+	current_node = of_parent(current_node);
+	while (1) {
+		parent = of_parent(current_node);
+		if (!parent) {
+			DEBUG_TR("reached root node...\n");
+			break;
+		}
+		of_getprop(current_node, "#address-cells", &nac, 4);
+		of_getprop(current_node, "#size-cells", &nsc, 4);
+		of_getprop(parent, "#address-cells", &pnac, 4);
+		one_range = nac + pnac + nsc;
+		len = of_getprop(current_node, "ranges", buf, 400);
+		if (len < 0) {
+			DEBUG_TR("no 'ranges' property; not translatable\n");
+			return;
+		}
+		ranges = (unsigned int *) &buf[0];
+		while (len > 0) {
+			if (!map_one_range
+			    ((uint64_t *) addr, addr_type, ranges, nac, nsc,
+			     pnac))
+				/* after a successful mapping we stop
+				 * going through the ranges */
+				break;
+			ranges += one_range;
+			len -= one_range * sizeof(int);
+		}
+		DEBUG_TR("address %lx\n", *addr);
+		of_getprop(current_node, "name", buf, 400);
+		DEBUG_TR("current node: %s\n", buf);
+		DEBUG_TR("\t#address-cells: %x\n", nac);
+		DEBUG_TR("\t#size-cells: %x\n", nsc);
+		of_getprop(parent, "name", buf, 400);
+		DEBUG_TR("parent node: %s\n", buf);
+		DEBUG_TR("\t#address-cells: %x\n", pnac);
+		current_node = parent;
+	}
+}
+
+static phandle_t
+get_boot_device(void)
+{
+	char buf[1024];
+	phandle_t dev = of_finddevice("/chosen");
+
+	if (dev == -1) {
+		dev = of_finddevice("/aliases");
+		if (dev == -1)
+			return dev;
+		of_getprop(dev, "net", buf, 1024);
+	} else
+		of_getprop(dev, "bootpath", buf, 1024);
+
+	return of_finddevice(buf);
+}
+
+/**
+ * translate_address tries to translate the device specific address
+ * of the boot device to a host specific address
+ *
+ * @param address  a pointer to a 64 bit value which will be
+ *                 translated
+ */
+void
+translate_address(unsigned long *addr)
+{
+	translate_address_dev((uint64_t*) addr, get_boot_device());
+}
+
+/**
+ * get_puid walks up in the device tree until it finds a parent
+ * node without a reg property. get_puid is assuming that if the
+ * parent node has no reg property it has found the pci host bridge
+ *
+ * this is not the correct way to find PHBs but it seems to work
+ * for all our systems
+ *
+ * @param node   the device for which to find the puid
+ *
+ * @return       the puid or 0
+ */
+uint64_t
+get_puid(phandle_t node)
+{
+	uint64_t puid = 0;
+	uint64_t tmp = 0;
+	phandle_t curr_node, last_node;
+
+	curr_node = last_node = of_parent(node);
+
+	while (curr_node) {
+		puid = tmp;
+		if (of_getprop(curr_node, "reg", &tmp, 8) < 8) {
+			/* if the found PHB is not directly under
+			 * root we need to translate the found address */
+			translate_address_dev(&puid, last_node);
+			return puid;
+		}
+		last_node = curr_node;
+		curr_node = of_parent(curr_node);
+	}
+
+	return 0;
+}
+
+int of_get_mac(phandle_t device, char *mac)
+{
+	uint8_t localmac[8];
+	int len;
+
+	len = of_getprop(device, "local-mac-address", localmac, 8);
+	if (len <= 0)
+		return -1;
+
+	if (len == 8) {
+		/* Some bad FDT nodes like veth use a 8-byte wide
+		 * property instead of 6-byte wide MACs... :-( */
+		memcpy(mac, &localmac[2], 6);
+	}
+	else {
+		memcpy(mac, localmac, 6);
+	}
+	return 0;
+}
+
+static void
+get_timebase(unsigned int *timebase)
+{
+	phandle_t cpu;
+	phandle_t cpus = of_finddevice("/cpus");
+
+	if (cpus == -1)
+		return;
+
+	cpu = of_child(cpus);
+
+	if (cpu == -1)
+		return;
+
+	of_getprop(cpu, "timebase-frequency", timebase, 4);
+}
+
+int of_glue_init(unsigned int * timebase,
+		 size_t _client_start, size_t _client_size)
+{
+	phandle_t chosen = of_finddevice("/chosen");
+	ihandle_t stdin_ih, stdout_ih;
+
+	client_start = (void *) (long) _client_start;
+	client_size = _client_size;
+
+	if (chosen == -1)
+		return -1;
+
+	of_getprop(chosen, "stdin", &stdin_ih, sizeof(ihandle_t));
+	of_getprop(chosen, "stdout", &stdout_ih, sizeof(ihandle_t));
+	pre_open_ih(0, stdin_ih);
+	pre_open_ih(1, stdout_ih);
+	pre_open_ih(2, stdout_ih);
+	get_timebase(timebase);
+	rtas_init();
+
+	claim_rc=(int)(long)of_claim(client_start, client_size, 0);
+
+	return 0;
+}
+
+void of_glue_release(void)
+{
+	if (claim_rc >= 0) {
+		of_release(client_start, client_size);
+	}
+}