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authorJerome Glisse <jglisse@redhat.com>2010-04-08 17:50:34 +0200
committerJerome Glisse <jglisse@redhat.com>2010-04-08 17:53:09 +0200
commit78de69713d742645c1c4347a06afca5b38f97184 (patch)
tree98c82cd590d52b37a379e927ad85c5a3d60d7e7d /radeon
parentc7650003c52ee29b7fa5ebf20dd134079f0b8488 (diff)
drm/radeon: add new cs command stream dumping facilities
Dump command stream + associated bo into a binary file which follow a similar design as json file. It allows to intercept a command stream and replay it in a standalone program (see radeondb tools).
Diffstat (limited to 'radeon')
-rw-r--r--radeon/Makefile.am3
-rw-r--r--radeon/bof.c477
-rw-r--r--radeon/bof.h90
-rw-r--r--radeon/radeon_cs_gem.c102
4 files changed, 667 insertions, 5 deletions
diff --git a/radeon/Makefile.am b/radeon/Makefile.am
index de782322..03b5040f 100644
--- a/radeon/Makefile.am
+++ b/radeon/Makefile.am
@@ -39,7 +39,8 @@ libdrm_radeon_la_SOURCES = \
radeon_cs_gem.c \
radeon_cs_space.c \
radeon_bo.c \
- radeon_cs.c
+ radeon_cs.c \
+ bof.c
libdrm_radeonincludedir = ${includedir}/libdrm
libdrm_radeoninclude_HEADERS = \
diff --git a/radeon/bof.c b/radeon/bof.c
new file mode 100644
index 00000000..0598cc6b
--- /dev/null
+++ b/radeon/bof.c
@@ -0,0 +1,477 @@
+/*
+ * Copyright 2010 Jerome Glisse <glisse@freedesktop.org>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ * Jerome Glisse
+ */
+#include <errno.h>
+#include <stdlib.h>
+#include <string.h>
+#include "bof.h"
+
+/*
+ * helpers
+ */
+static int bof_entry_grow(bof_t *bof)
+{
+ bof_t **array;
+
+ if (bof->array_size < bof->nentry)
+ return 0;
+ array = realloc(bof->array, (bof->nentry + 16) * sizeof(void*));
+ if (array == NULL)
+ return -ENOMEM;
+ bof->array = array;
+ bof->nentry += 16;
+ return 0;
+}
+
+/*
+ * object
+ */
+bof_t *bof_object(void)
+{
+ bof_t *object;
+
+ object = calloc(1, sizeof(bof_t));
+ if (object == NULL)
+ return NULL;
+ object->refcount = 1;
+ object->type = BOF_TYPE_OBJECT;
+ object->size = 12;
+ return object;
+}
+
+bof_t *bof_object_get(bof_t *object, const char *keyname)
+{
+ unsigned i;
+
+ for (i = 0; i < object->array_size; i += 2) {
+ if (!strcmp(object->array[i]->value, keyname)) {
+ return object->array[i + 1];
+ }
+ }
+ return NULL;
+}
+
+int bof_object_set(bof_t *object, const char *keyname, bof_t *value)
+{
+ bof_t *key;
+ int r;
+
+ if (object->type != BOF_TYPE_OBJECT)
+ return -EINVAL;
+ r = bof_entry_grow(object);
+ if (r)
+ return r;
+ key = bof_string(keyname);
+ if (key == NULL)
+ return -ENOMEM;
+ object->array[object->array_size++] = key;
+ object->array[object->array_size++] = value;
+ object->size += value->size;
+ object->size += key->size;
+ bof_incref(value);
+ return 0;
+}
+
+/*
+ * array
+ */
+bof_t *bof_array(void)
+{
+ bof_t *array = bof_object();
+
+ if (array == NULL)
+ return NULL;
+ array->type = BOF_TYPE_ARRAY;
+ array->size = 12;
+ return array;
+}
+
+int bof_array_append(bof_t *array, bof_t *value)
+{
+ int r;
+ if (array->type != BOF_TYPE_ARRAY)
+ return -EINVAL;
+ r = bof_entry_grow(array);
+ if (r)
+ return r;
+ array->array[array->array_size++] = value;
+ array->size += value->size;
+ bof_incref(value);
+ return 0;
+}
+
+bof_t *bof_array_get(bof_t *bof, unsigned i)
+{
+ if (!bof_is_array(bof) || i >= bof->array_size)
+ return NULL;
+ return bof->array[i];
+}
+
+unsigned bof_array_size(bof_t *bof)
+{
+ if (!bof_is_array(bof))
+ return 0;
+ return bof->array_size;
+}
+
+/*
+ * blob
+ */
+bof_t *bof_blob(unsigned size, void *value)
+{
+ bof_t *blob = bof_object();
+
+ if (blob == NULL)
+ return NULL;
+ blob->type = BOF_TYPE_BLOB;
+ blob->value = calloc(1, size);
+ if (blob->value == NULL) {
+ bof_decref(blob);
+ return NULL;
+ }
+ blob->size = size;
+ memcpy(blob->value, value, size);
+ blob->size += 12;
+ return blob;
+}
+
+unsigned bof_blob_size(bof_t *bof)
+{
+ if (!bof_is_blob(bof))
+ return 0;
+ return bof->size - 12;
+}
+
+void *bof_blob_value(bof_t *bof)
+{
+ if (!bof_is_blob(bof))
+ return NULL;
+ return bof->value;
+}
+
+/*
+ * string
+ */
+bof_t *bof_string(const char *value)
+{
+ bof_t *string = bof_object();
+
+ if (string == NULL)
+ return NULL;
+ string->type = BOF_TYPE_STRING;
+ string->size = strlen(value) + 1;
+ string->value = calloc(1, string->size);
+ if (string->value == NULL) {
+ bof_decref(string);
+ return NULL;
+ }
+ strcpy(string->value, value);
+ string->size += 12;
+ return string;
+}
+
+/*
+ * int32
+ */
+bof_t *bof_int32(int32_t value)
+{
+ bof_t *int32 = bof_object();
+
+ if (int32 == NULL)
+ return NULL;
+ int32->type = BOF_TYPE_INT32;
+ int32->size = 4;
+ int32->value = calloc(1, int32->size);
+ if (int32->value == NULL) {
+ bof_decref(int32);
+ return NULL;
+ }
+ memcpy(int32->value, &value, 4);
+ int32->size += 12;
+ return int32;
+}
+
+int32_t bof_int32_value(bof_t *bof)
+{
+ return *((uint32_t*)bof->value);
+}
+
+/*
+ * common
+ */
+static void bof_indent(int level)
+{
+ int i;
+
+ for (i = 0; i < level; i++)
+ fprintf(stderr, " ");
+}
+
+static void bof_print_bof(bof_t *bof, int level, int entry)
+{
+ bof_indent(level);
+ if (bof == NULL) {
+ fprintf(stderr, "--NULL-- for entry %d\n", entry);
+ return;
+ }
+ switch (bof->type) {
+ case BOF_TYPE_STRING:
+ fprintf(stderr, "%p string [%s %d]\n", bof, (char*)bof->value, bof->size);
+ break;
+ case BOF_TYPE_INT32:
+ fprintf(stderr, "%p int32 [%d %d]\n", bof, *(int*)bof->value, bof->size);
+ break;
+ case BOF_TYPE_BLOB:
+ fprintf(stderr, "%p blob [%d]\n", bof, bof->size);
+ break;
+ case BOF_TYPE_NULL:
+ fprintf(stderr, "%p null [%d]\n", bof, bof->size);
+ break;
+ case BOF_TYPE_OBJECT:
+ fprintf(stderr, "%p object [%d %d]\n", bof, bof->array_size / 2, bof->size);
+ break;
+ case BOF_TYPE_ARRAY:
+ fprintf(stderr, "%p array [%d %d]\n", bof, bof->array_size, bof->size);
+ break;
+ default:
+ fprintf(stderr, "%p unknown [%d]\n", bof, bof->type);
+ return;
+ }
+}
+
+static void bof_print_rec(bof_t *bof, int level, int entry)
+{
+ unsigned i;
+
+ bof_print_bof(bof, level, entry);
+ for (i = 0; i < bof->array_size; i++) {
+ bof_print_rec(bof->array[i], level + 2, i);
+ }
+}
+
+void bof_print(bof_t *bof)
+{
+ bof_print_rec(bof, 0, 0);
+}
+
+static int bof_read(bof_t *root, FILE *file, long end, int level)
+{
+ bof_t *bof = NULL;
+ int r;
+
+ if (ftell(file) >= end) {
+ return 0;
+ }
+ r = bof_entry_grow(root);
+ if (r)
+ return r;
+ bof = bof_object();
+ if (bof == NULL)
+ return -ENOMEM;
+ bof->offset = ftell(file);
+ r = fread(&bof->type, 4, 1, file);
+ if (r != 1)
+ goto out_err;
+ r = fread(&bof->size, 4, 1, file);
+ if (r != 1)
+ goto out_err;
+ r = fread(&bof->array_size, 4, 1, file);
+ if (r != 1)
+ goto out_err;
+ switch (bof->type) {
+ case BOF_TYPE_STRING:
+ case BOF_TYPE_INT32:
+ case BOF_TYPE_BLOB:
+ bof->value = calloc(1, bof->size - 12);
+ if (bof->value == NULL) {
+ goto out_err;
+ }
+ r = fread(bof->value, bof->size - 12, 1, file);
+ if (r != 1) {
+ fprintf(stderr, "error reading %d\n", bof->size - 12);
+ goto out_err;
+ }
+ break;
+ case BOF_TYPE_NULL:
+ return 0;
+ case BOF_TYPE_OBJECT:
+ case BOF_TYPE_ARRAY:
+ r = bof_read(bof, file, bof->offset + bof->size, level + 2);
+ if (r)
+ goto out_err;
+ break;
+ default:
+ fprintf(stderr, "invalid type %d\n", bof->type);
+ goto out_err;
+ }
+ root->array[root->centry++] = bof;
+ return bof_read(root, file, end, level);
+out_err:
+ bof_decref(bof);
+ return -EINVAL;
+}
+
+bof_t *bof_load_file(const char *filename)
+{
+ bof_t *root = bof_object();
+ int r;
+
+ if (root == NULL) {
+ fprintf(stderr, "%s failed to create root object\n", __func__);
+ return NULL;
+ }
+ root->file = fopen(filename, "r");
+ if (root->file == NULL)
+ goto out_err;
+ r = fseek(root->file, 0L, SEEK_SET);
+ if (r) {
+ fprintf(stderr, "%s failed to seek into file %s\n", __func__, filename);
+ goto out_err;
+ }
+ root->offset = ftell(root->file);
+ r = fread(&root->type, 4, 1, root->file);
+ if (r != 1)
+ goto out_err;
+ r = fread(&root->size, 4, 1, root->file);
+ if (r != 1)
+ goto out_err;
+ r = fread(&root->array_size, 4, 1, root->file);
+ if (r != 1)
+ goto out_err;
+ r = bof_read(root, root->file, root->offset + root->size, 2);
+ if (r)
+ goto out_err;
+ return root;
+out_err:
+ bof_decref(root);
+ return NULL;
+}
+
+void bof_incref(bof_t *bof)
+{
+ bof->refcount++;
+}
+
+void bof_decref(bof_t *bof)
+{
+ unsigned i;
+
+ if (bof == NULL)
+ return;
+ if (--bof->refcount > 0)
+ return;
+ for (i = 0; i < bof->array_size; i++) {
+ bof_decref(bof->array[i]);
+ bof->array[i] = NULL;
+ }
+ bof->array_size = 0;
+ if (bof->file) {
+ fclose(bof->file);
+ bof->file = NULL;
+ }
+ free(bof->array);
+ free(bof->value);
+ free(bof);
+}
+
+static int bof_file_write(bof_t *bof, FILE *file)
+{
+ unsigned i;
+ int r;
+
+ r = fwrite(&bof->type, 4, 1, file);
+ if (r != 1)
+ return -EINVAL;
+ r = fwrite(&bof->size, 4, 1, file);
+ if (r != 1)
+ return -EINVAL;
+ r = fwrite(&bof->array_size, 4, 1, file);
+ if (r != 1)
+ return -EINVAL;
+ switch (bof->type) {
+ case BOF_TYPE_NULL:
+ if (bof->size)
+ return -EINVAL;
+ break;
+ case BOF_TYPE_STRING:
+ case BOF_TYPE_INT32:
+ case BOF_TYPE_BLOB:
+ r = fwrite(bof->value, bof->size - 12, 1, file);
+ if (r != 1)
+ return -EINVAL;
+ break;
+ case BOF_TYPE_OBJECT:
+ case BOF_TYPE_ARRAY:
+ for (i = 0; i < bof->array_size; i++) {
+ r = bof_file_write(bof->array[i], file);
+ if (r)
+ return r;
+ }
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+int bof_dump_file(bof_t *bof, const char *filename)
+{
+ unsigned i;
+ int r = 0;
+
+ if (bof->file) {
+ fclose(bof->file);
+ bof->file = NULL;
+ }
+ bof->file = fopen(filename, "w");
+ if (bof->file == NULL) {
+ fprintf(stderr, "%s failed to open file %s\n", __func__, filename);
+ r = -EINVAL;
+ goto out_err;
+ }
+ r = fseek(bof->file, 0L, SEEK_SET);
+ if (r) {
+ fprintf(stderr, "%s failed to seek into file %s\n", __func__, filename);
+ goto out_err;
+ }
+ r = fwrite(&bof->type, 4, 1, bof->file);
+ if (r != 1)
+ goto out_err;
+ r = fwrite(&bof->size, 4, 1, bof->file);
+ if (r != 1)
+ goto out_err;
+ r = fwrite(&bof->array_size, 4, 1, bof->file);
+ if (r != 1)
+ goto out_err;
+ for (i = 0; i < bof->array_size; i++) {
+ r = bof_file_write(bof->array[i], bof->file);
+ if (r)
+ return r;
+ }
+out_err:
+ fclose(bof->file);
+ bof->file = NULL;
+ return r;
+}
diff --git a/radeon/bof.h b/radeon/bof.h
new file mode 100644
index 00000000..014affb7
--- /dev/null
+++ b/radeon/bof.h
@@ -0,0 +1,90 @@
+/*
+ * Copyright 2010 Jerome Glisse <glisse@freedesktop.org>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors:
+ * Jerome Glisse
+ */
+#ifndef BOF_H
+#define BOF_H
+
+#include <stdio.h>
+#include <stdint.h>
+
+#define BOF_TYPE_STRING 0
+#define BOF_TYPE_NULL 1
+#define BOF_TYPE_BLOB 2
+#define BOF_TYPE_OBJECT 3
+#define BOF_TYPE_ARRAY 4
+#define BOF_TYPE_INT32 5
+
+struct bof;
+
+typedef struct bof {
+ struct bof **array;
+ unsigned centry;
+ unsigned nentry;
+ unsigned refcount;
+ FILE *file;
+ uint32_t type;
+ uint32_t size;
+ uint32_t array_size;
+ void *value;
+ long offset;
+} bof_t;
+
+extern int bof_file_flush(bof_t *root);
+extern bof_t *bof_file_new(const char *filename);
+extern int bof_object_dump(bof_t *object, const char *filename);
+
+/* object */
+extern bof_t *bof_object(void);
+extern bof_t *bof_object_get(bof_t *object, const char *keyname);
+extern int bof_object_set(bof_t *object, const char *keyname, bof_t *value);
+/* array */
+extern bof_t *bof_array(void);
+extern int bof_array_append(bof_t *array, bof_t *value);
+extern bof_t *bof_array_get(bof_t *bof, unsigned i);
+extern unsigned bof_array_size(bof_t *bof);
+/* blob */
+extern bof_t *bof_blob(unsigned size, void *value);
+extern unsigned bof_blob_size(bof_t *bof);
+extern void *bof_blob_value(bof_t *bof);
+/* string */
+extern bof_t *bof_string(const char *value);
+/* int32 */
+extern bof_t *bof_int32(int32_t value);
+extern int32_t bof_int32_value(bof_t *bof);
+/* common functions */
+extern void bof_decref(bof_t *bof);
+extern void bof_incref(bof_t *bof);
+extern bof_t *bof_load_file(const char *filename);
+extern int bof_dump_file(bof_t *bof, const char *filename);
+extern void bof_print(bof_t *bof);
+
+static inline int bof_is_object(bof_t *bof){return (bof->type == BOF_TYPE_OBJECT);}
+static inline int bof_is_blob(bof_t *bof){return (bof->type == BOF_TYPE_BLOB);}
+static inline int bof_is_null(bof_t *bof){return (bof->type == BOF_TYPE_NULL);}
+static inline int bof_is_int32(bof_t *bof){return (bof->type == BOF_TYPE_INT32);}
+static inline int bof_is_array(bof_t *bof){return (bof->type == BOF_TYPE_ARRAY);}
+static inline int bof_is_string(bof_t *bof){return (bof->type == BOF_TYPE_STRING);}
+
+#endif
diff --git a/radeon/radeon_cs_gem.c b/radeon/radeon_cs_gem.c
index 7f4d3bea..81bd3939 100644
--- a/radeon/radeon_cs_gem.c
+++ b/radeon/radeon_cs_gem.c
@@ -32,6 +32,7 @@
#include <assert.h>
#include <errno.h>
#include <stdlib.h>
+#include <string.h>
#include <pthread.h>
#include <sys/mman.h>
#include <sys/ioctl.h>
@@ -44,10 +45,14 @@
#include "xf86drm.h"
#include "xf86atomic.h"
#include "radeon_drm.h"
+#include "bof.h"
+
+#define CS_BOF_DUMP 0
struct radeon_cs_manager_gem {
- struct radeon_cs_manager base;
- uint32_t device_id;
+ struct radeon_cs_manager base;
+ uint32_t device_id;
+ unsigned nbof;
};
#pragma pack(1)
@@ -62,7 +67,7 @@ struct cs_reloc_gem {
#define RELOC_SIZE (sizeof(struct cs_reloc_gem) / sizeof(uint32_t))
struct cs_gem {
- struct radeon_cs_int base;
+ struct radeon_cs_int base;
struct drm_radeon_cs cs;
struct drm_radeon_cs_chunk chunks[2];
unsigned nrelocs;
@@ -325,6 +330,92 @@ static int cs_gem_end(struct radeon_cs_int *cs,
return 0;
}
+static void cs_gem_dump_bof(struct radeon_cs_int *cs)
+{
+ struct cs_gem *csg = (struct cs_gem*)cs;
+ struct radeon_cs_manager_gem *csm;
+ bof_t *bcs, *blob, *array, *bo, *size, *handle, *device_id, *root;
+ char tmp[256];
+ unsigned i;
+
+ csm = (struct radeon_cs_manager_gem *)cs->csm;
+ root = device_id = bcs = blob = array = bo = size = handle = NULL;
+ root = bof_object();
+ if (root == NULL)
+ goto out_err;
+ device_id = bof_int32(csm->device_id);
+ if (device_id == NULL)
+ return;
+ if (bof_object_set(root, "device_id", device_id))
+ goto out_err;
+ bof_decref(device_id);
+ device_id = NULL;
+ /* dump relocs */
+ blob = bof_blob(csg->nrelocs * 16, csg->relocs);
+ if (blob == NULL)
+ goto out_err;
+ if (bof_object_set(root, "reloc", blob))
+ goto out_err;
+ bof_decref(blob);
+ blob = NULL;
+ /* dump cs */
+ blob = bof_blob(cs->cdw * 4, cs->packets);
+ if (blob == NULL)
+ goto out_err;
+ if (bof_object_set(root, "pm4", blob))
+ goto out_err;
+ bof_decref(blob);
+ blob = NULL;
+ /* dump bo */
+ array = bof_array();
+ if (array == NULL)
+ goto out_err;
+ for (i = 0; i < csg->base.crelocs; i++) {
+ bo = bof_object();
+ if (bo == NULL)
+ goto out_err;
+ size = bof_int32(csg->relocs_bo[i]->size);
+ if (size == NULL)
+ goto out_err;
+ if (bof_object_set(bo, "size", size))
+ goto out_err;
+ bof_decref(size);
+ size = NULL;
+ handle = bof_int32(csg->relocs_bo[i]->handle);
+ if (handle == NULL)
+ goto out_err;
+ if (bof_object_set(bo, "handle", handle))
+ goto out_err;
+ bof_decref(handle);
+ handle = NULL;
+ radeon_bo_map((struct radeon_bo*)csg->relocs_bo[i], 0);
+ blob = bof_blob(csg->relocs_bo[i]->size, csg->relocs_bo[i]->ptr);
+ radeon_bo_unmap((struct radeon_bo*)csg->relocs_bo[i]);
+ if (blob == NULL)
+ goto out_err;
+ if (bof_object_set(bo, "data", blob))
+ goto out_err;
+ bof_decref(blob);
+ blob = NULL;
+ if (bof_array_append(array, bo))
+ goto out_err;
+ bof_decref(bo);
+ bo = NULL;
+ }
+ if (bof_object_set(root, "bo", array))
+ goto out_err;
+ sprintf(tmp, "d-0x%04X-%08d.bof", csm->device_id, csm->nbof++);
+ bof_dump_file(root, tmp);
+out_err:
+ bof_decref(blob);
+ bof_decref(array);
+ bof_decref(bo);
+ bof_decref(size);
+ bof_decref(handle);
+ bof_decref(device_id);
+ bof_decref(root);
+}
+
static int cs_gem_emit(struct radeon_cs_int *cs)
{
struct cs_gem *csg = (struct cs_gem*)cs;
@@ -332,6 +423,9 @@ static int cs_gem_emit(struct radeon_cs_int *cs)
unsigned i;
int r;
+#if CS_BOF_DUMP
+ cs_gem_dump_bof(cs);
+#endif
csg->chunks[0].length_dw = cs->cdw;
chunk_array[0] = (uint64_t)(uintptr_t)&csg->chunks[0];
@@ -428,7 +522,7 @@ static int radeon_get_device_id(int fd, uint32_t *device_id)
*device_id = 0;
info.request = RADEON_INFO_DEVICE_ID;
- info.value = device_id;
+ info.value = (uintptr_t)device_id;
r = drmCommandWriteRead(fd, DRM_RADEON_INFO, &info,
sizeof(struct drm_radeon_info));
return r;