target-ppc: Add ISA 2.06 divwe[o] Instructions

[qemu.git] / device_tree.c

diff --git a/device_tree.c b/device_tree.c
index 21be07075929a92af80c4a04fd94a22547aaaa22..ca83504819823cba7ab9656372a001a7771b4e4b 100644 (file)
--- a/device_tree.c
+++ b/device_tree.c
@@ -20,12 +20,55 @@
 
 #include "config.h"
 #include "qemu-common.h"
 
 #include "config.h"
 #include "qemu-common.h"

-#include "sysemu.h"
-#include "device_tree.h"
+#include "sysemu/device_tree.h"
+#include "sysemu/sysemu.h"

 #include "hw/loader.h"
 #include "hw/loader.h"

+#include "qemu/option.h"
+#include "qemu/config-file.h"

 
 #include <libfdt.h>
 
 
 #include <libfdt.h>
 

+#define FDT_MAX_SIZE  0x10000
+
+void *create_device_tree(int *sizep)
+{
+    void *fdt;
+    int ret;
+
+    *sizep = FDT_MAX_SIZE;
+    fdt = g_malloc0(FDT_MAX_SIZE);
+    ret = fdt_create(fdt, FDT_MAX_SIZE);
+    if (ret < 0) {
+        goto fail;
+    }
+    ret = fdt_finish_reservemap(fdt);
+    if (ret < 0) {
+        goto fail;
+    }
+    ret = fdt_begin_node(fdt, "");
+    if (ret < 0) {
+        goto fail;
+    }
+    ret = fdt_end_node(fdt);
+    if (ret < 0) {
+        goto fail;
+    }
+    ret = fdt_finish(fdt);
+    if (ret < 0) {
+        goto fail;
+    }
+    ret = fdt_open_into(fdt, fdt, *sizep);
+    if (ret) {
+        fprintf(stderr, "Unable to copy device tree in memory\n");
+        exit(1);
+    }
+
+    return fdt;
+fail:
+    fprintf(stderr, "%s Couldn't create dt: %s\n", __func__, fdt_strerror(ret));
+    exit(1);
+}
+

 void *load_device_tree(const char *filename_path, int *sizep)
 {
     int dt_size;
 void *load_device_tree(const char *filename_path, int *sizep)
 {
     int dt_size;


@@ -42,9 +85,10 @@ void *load_device_tree(const char *filename_path, int *sizep)
     }
 
     /* Expand to 2x size to give enough room for manipulation.  */
     }
 
     /* Expand to 2x size to give enough room for manipulation.  */

+    dt_size += 10000;

     dt_size *= 2;
     /* First allocate space in qemu for device tree */
     dt_size *= 2;
     /* First allocate space in qemu for device tree */

-    fdt = qemu_mallocz(dt_size);
+    fdt = g_malloc0(dt_size);

 
     dt_file_load_size = load_image(filename_path, fdt);
     if (dt_file_load_size < 0) {
 
     dt_file_load_size = load_image(filename_path, fdt);
     if (dt_file_load_size < 0) {


@@ -69,42 +113,235 @@ void *load_device_tree(const char *filename_path, int *sizep)
     return fdt;
 
 fail:
     return fdt;
 
 fail:

-    qemu_free(fdt);
+    g_free(fdt);

     return NULL;
 }
 
     return NULL;
 }
 

-int qemu_devtree_setprop(void *fdt, const char *node_path,
-                         const char *property, void *val_array, int size)
+static int findnode_nofail(void *fdt, const char *node_path)

 {
     int offset;
 
     offset = fdt_path_offset(fdt, node_path);
 {
     int offset;
 
     offset = fdt_path_offset(fdt, node_path);

-    if (offset < 0)
-        return offset;
+    if (offset < 0) {
+        fprintf(stderr, "%s Couldn't find node %s: %s\n", __func__, node_path,
+                fdt_strerror(offset));
+        exit(1);
+    }

 
 

-    return fdt_setprop(fdt, offset, property, val_array, size);
+    return offset;

 }
 
 }
 

-int qemu_devtree_setprop_cell(void *fdt, const char *node_path,
-                              const char *property, uint32_t val)
+int qemu_fdt_setprop(void *fdt, const char *node_path,
+                     const char *property, const void *val, int size)

 {
 {

-    int offset;
+    int r;

 
 

-    offset = fdt_path_offset(fdt, node_path);
-    if (offset < 0)
-        return offset;
+    r = fdt_setprop(fdt, findnode_nofail(fdt, node_path), property, val, size);
+    if (r < 0) {
+        fprintf(stderr, "%s: Couldn't set %s/%s: %s\n", __func__, node_path,
+                property, fdt_strerror(r));
+        exit(1);
+    }

 
 

-    return fdt_setprop_cell(fdt, offset, property, val);
+    return r;

 }
 
 }
 

-int qemu_devtree_setprop_string(void *fdt, const char *node_path,
-                                const char *property, const char *string)
+int qemu_fdt_setprop_cell(void *fdt, const char *node_path,
+                          const char *property, uint32_t val)

 {
 {

-    int offset;
+    int r;

 
 

-    offset = fdt_path_offset(fdt, node_path);
-    if (offset < 0)
-        return offset;
+    r = fdt_setprop_cell(fdt, findnode_nofail(fdt, node_path), property, val);
+    if (r < 0) {
+        fprintf(stderr, "%s: Couldn't set %s/%s = %#08x: %s\n", __func__,
+                node_path, property, val, fdt_strerror(r));
+        exit(1);
+    }
+
+    return r;
+}
+
+int qemu_fdt_setprop_u64(void *fdt, const char *node_path,
+                         const char *property, uint64_t val)
+{
+    val = cpu_to_be64(val);
+    return qemu_fdt_setprop(fdt, node_path, property, &val, sizeof(val));
+}
+
+int qemu_fdt_setprop_string(void *fdt, const char *node_path,
+                            const char *property, const char *string)
+{
+    int r;
+
+    r = fdt_setprop_string(fdt, findnode_nofail(fdt, node_path), property, string);
+    if (r < 0) {
+        fprintf(stderr, "%s: Couldn't set %s/%s = %s: %s\n", __func__,
+                node_path, property, string, fdt_strerror(r));
+        exit(1);
+    }
+
+    return r;
+}
+
+const void *qemu_fdt_getprop(void *fdt, const char *node_path,
+                             const char *property, int *lenp)
+{
+    int len;
+    const void *r;
+    if (!lenp) {
+        lenp = &len;
+    }
+    r = fdt_getprop(fdt, findnode_nofail(fdt, node_path), property, lenp);
+    if (!r) {
+        fprintf(stderr, "%s: Couldn't get %s/%s: %s\n", __func__,
+                node_path, property, fdt_strerror(*lenp));
+        exit(1);
+    }
+    return r;
+}
+
+uint32_t qemu_fdt_getprop_cell(void *fdt, const char *node_path,
+                               const char *property)
+{
+    int len;
+    const uint32_t *p = qemu_fdt_getprop(fdt, node_path, property, &len);
+    if (len != 4) {
+        fprintf(stderr, "%s: %s/%s not 4 bytes long (not a cell?)\n",
+                __func__, node_path, property);
+        exit(1);
+    }
+    return be32_to_cpu(*p);
+}
+
+uint32_t qemu_fdt_get_phandle(void *fdt, const char *path)
+{
+    uint32_t r;
+
+    r = fdt_get_phandle(fdt, findnode_nofail(fdt, path));
+    if (r == 0) {
+        fprintf(stderr, "%s: Couldn't get phandle for %s: %s\n", __func__,
+                path, fdt_strerror(r));
+        exit(1);
+    }
+
+    return r;
+}
+
+int qemu_fdt_setprop_phandle(void *fdt, const char *node_path,
+                             const char *property,
+                             const char *target_node_path)
+{
+    uint32_t phandle = qemu_fdt_get_phandle(fdt, target_node_path);
+    return qemu_fdt_setprop_cell(fdt, node_path, property, phandle);
+}
+
+uint32_t qemu_fdt_alloc_phandle(void *fdt)
+{
+    static int phandle = 0x0;
+
+    /*
+     * We need to find out if the user gave us special instruction at
+     * which phandle id to start allocting phandles.
+     */
+    if (!phandle) {
+        phandle = qemu_opt_get_number(qemu_get_machine_opts(),
+                                      "phandle_start", 0);
+    }
+
+    if (!phandle) {
+        /*
+         * None or invalid phandle given on the command line, so fall back to
+         * default starting point.
+         */
+        phandle = 0x8000;
+    }
+
+    return phandle++;
+}
+
+int qemu_fdt_nop_node(void *fdt, const char *node_path)
+{
+    int r;
+
+    r = fdt_nop_node(fdt, findnode_nofail(fdt, node_path));
+    if (r < 0) {
+        fprintf(stderr, "%s: Couldn't nop node %s: %s\n", __func__, node_path,
+                fdt_strerror(r));
+        exit(1);
+    }
+
+    return r;
+}
+
+int qemu_fdt_add_subnode(void *fdt, const char *name)
+{
+    char *dupname = g_strdup(name);
+    char *basename = strrchr(dupname, '/');
+    int retval;
+    int parent = 0;
+
+    if (!basename) {
+        g_free(dupname);
+        return -1;
+    }
+
+    basename[0] = '\0';
+    basename++;
+
+    if (dupname[0]) {
+        parent = findnode_nofail(fdt, dupname);
+    }
+
+    retval = fdt_add_subnode(fdt, parent, basename);
+    if (retval < 0) {
+        fprintf(stderr, "FDT: Failed to create subnode %s: %s\n", name,
+                fdt_strerror(retval));
+        exit(1);
+    }
+
+    g_free(dupname);
+    return retval;
+}
+
+void qemu_fdt_dumpdtb(void *fdt, int size)
+{
+    const char *dumpdtb = qemu_opt_get(qemu_get_machine_opts(), "dumpdtb");
+
+    if (dumpdtb) {
+        /* Dump the dtb to a file and quit */
+        exit(g_file_set_contents(dumpdtb, fdt, size, NULL) ? 0 : 1);
+    }
+}
+
+int qemu_fdt_setprop_sized_cells_from_array(void *fdt,
+                                            const char *node_path,
+                                            const char *property,
+                                            int numvalues,
+                                            uint64_t *values)
+{
+    uint32_t *propcells;
+    uint64_t value;
+    int cellnum, vnum, ncells;
+    uint32_t hival;
+
+    propcells = g_new0(uint32_t, numvalues * 2);
+
+    cellnum = 0;
+    for (vnum = 0; vnum < numvalues; vnum++) {
+        ncells = values[vnum * 2];
+        if (ncells != 1 && ncells != 2) {
+            return -1;
+        }
+        value = values[vnum * 2 + 1];
+        hival = cpu_to_be32(value >> 32);
+        if (ncells > 1) {
+            propcells[cellnum++] = hival;
+        } else if (hival != 0) {
+            return -1;
+        }
+        propcells[cellnum++] = cpu_to_be32(value);
+    }

 
 

-    return fdt_setprop_string(fdt, offset, property, string);
+    return qemu_fdt_setprop(fdt, node_path, property, propcells,
+                            cellnum * sizeof(uint32_t));

 }
 }