amdgpu: Only remember the device's marketing name

There's no point in keeping around the full table of marketing names,
when amdgpu_get_marketing_name only ever returns the device's marketing
name.

Acked-by: Slava Abramov <slava.abramov@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>

amdgpu/Android.mk

@@ -11,8 +11,7 @@ LOCAL_SHARED_LIBRARIES := libdrm
 LOCAL_SRC_FILES := $(LIBDRM_AMDGPU_FILES)
 
 LOCAL_CFLAGS := \
-	-DAMDGPU_ASIC_ID_TABLE=\"/vendor/etc/hwdata/amdgpu.ids\" \
-	-DAMDGPU_ASIC_ID_TABLE_NUM_ENTRIES=$(shell egrep -ci '^[0-9a-f]{4},.*[0-9a-f]+,' $(LIBDRM_TOP)/data/amdgpu.ids)
+	-DAMDGPU_ASIC_ID_TABLE=\"/vendor/etc/hwdata/amdgpu.ids\"
 
 LOCAL_REQUIRED_MODULES := amdgpu.ids
 

amdgpu/Makefile.am

@@ -31,10 +31,7 @@ AM_CFLAGS = \
 	-I$(top_srcdir)/include/drm
 
 libdrmdatadir = @libdrmdatadir@
-ASIC_ID_TABLE_NUM_ENTRIES := $(shell egrep -ci '^[0-9a-f]{4},.*[0-9a-f]+,' \
-	$(top_srcdir)/data/amdgpu.ids)
-AM_CPPFLAGS = -DAMDGPU_ASIC_ID_TABLE=\"${libdrmdatadir}/amdgpu.ids\" \
-	-DAMDGPU_ASIC_ID_TABLE_NUM_ENTRIES=$(ASIC_ID_TABLE_NUM_ENTRIES)
+AM_CPPFLAGS = -DAMDGPU_ASIC_ID_TABLE=\"${libdrmdatadir}/amdgpu.ids\"
 
 libdrm_amdgpu_la_LTLIBRARIES = libdrm_amdgpu.la
 libdrm_amdgpu_ladir = $(libdir)

amdgpu/amdgpu_asic_id.c

@@ -38,11 +38,13 @@
 #include "amdgpu_drm.h"
 #include "amdgpu_internal.h"
 
-static int parse_one_line(const char *line, struct amdgpu_asic_id *id)
+static int parse_one_line(struct amdgpu_device *dev, const char *line)
 {
 	char *buf, *saveptr;
 	char *s_did;
+	uint32_t did;
 	char *s_rid;
+	uint32_t rid;
 	char *s_name;
 	char *endptr;
 	int r = -EINVAL;
@@ -60,19 +62,29 @@ static int parse_one_line(const char *line, struct amdgpu_asic_id *id)
 	if (!s_did)
 		goto out;
 
-	id->did = strtol(s_did, &endptr, 16);
+	did = strtol(s_did, &endptr, 16);
 	if (*endptr)
 		goto out;
 
+	if (did != dev->info.asic_id) {
+		r = -EAGAIN;
+		goto out;
+	}
+
 	/* revision id */
 	s_rid = strtok_r(NULL, ",", &saveptr);
 	if (!s_rid)
 		goto out;
 
-	id->rid = strtol(s_rid, &endptr, 16);
+	rid = strtol(s_rid, &endptr, 16);
 	if (*endptr)
 		goto out;
 
+	if (rid != dev->info.pci_rev_id) {
+		r = -EAGAIN;
+		goto out;
+	}
+
 	/* marketing name */
 	s_name = strtok_r(NULL, ",", &saveptr);
 	if (!s_name)
@@ -84,8 +96,8 @@ static int parse_one_line(const char *line, struct amdgpu_asic_id *id)
 	if (strlen(s_name) == 0)
 		goto out;
 
-	id->marketing_name = strdup(s_name);
-	if (id->marketing_name)
+	dev->marketing_name = strdup(s_name);
+	if (dev->marketing_name)
 		r = 0;
 	else
 		r = -ENOMEM;
@@ -96,17 +108,13 @@ out:
 	return r;
 }
 
-void amdgpu_parse_asic_ids(struct amdgpu_asic_id **p_asic_id_table)
+void amdgpu_parse_asic_ids(struct amdgpu_device *dev)
 {
-	struct amdgpu_asic_id *asic_id_table;
-	struct amdgpu_asic_id *id;
 	FILE *fp;
 	char *line = NULL;
 	size_t len = 0;
 	ssize_t n;
 	int line_num = 1;
-	size_t table_size = 0;
-	size_t table_max_size = AMDGPU_ASIC_ID_TABLE_NUM_ENTRIES;
 	int r = 0;
 
 	fp = fopen(AMDGPU_ASIC_ID_TABLE, "r");
@@ -116,13 +124,6 @@ void amdgpu_parse_asic_ids(struct amdgpu_asic_id **p_asic_id_table)
 		return;
 	}
 
-	asic_id_table = calloc(table_max_size + 1,
-			       sizeof(struct amdgpu_asic_id));
-	if (!asic_id_table) {
-		r = -ENOMEM;
-		goto close;
-	}
-
 	/* 1st valid line is file version */
 	while ((n = getline(&line, &len, fp)) != -1) {
 		/* trim trailing newline */
@@ -140,52 +141,17 @@ void amdgpu_parse_asic_ids(struct amdgpu_asic_id **p_asic_id_table)
 	}
 
 	while ((n = getline(&line, &len, fp)) != -1) {
-		if (table_size > table_max_size) {
-			/* double table size */
-			table_max_size *= 2;
-			id = realloc(asic_id_table, (table_max_size + 1) *
-				     sizeof(struct amdgpu_asic_id));
-			if (!id) {
-				r = -ENOMEM;
-				goto free;
-			}
-                        asic_id_table = id;
-		}
-
-		id = asic_id_table + table_size;
-
 		/* trim trailing newline */
 		if (line[n - 1] == '\n')
 			line[n - 1] = '\0';
 
-		r = parse_one_line(line, id);
-		if (r) {
-			if (r == -EAGAIN) {
-				line_num++;
-				continue;
-			}
-			goto free;
-		}
+		r = parse_one_line(dev, line);
+		if (r != -EAGAIN)
+			break;
 
 		line_num++;
-		table_size++;
 	}
 
-	if (table_size != table_max_size) {
-		id = realloc(asic_id_table, (table_size + 1) *
-			     sizeof(struct amdgpu_asic_id));
-		if (!id) {
-			r = -ENOMEM;
-			goto free;
-		}
-		asic_id_table = id;
-        }
-
-	/* end of table */
-	id = asic_id_table + table_size;
-	memset(id, 0, sizeof(struct amdgpu_asic_id));
-
-free:
 	if (r == -EINVAL) {
 		fprintf(stderr, "Invalid format: %s: line %d: %s\n",
 			AMDGPU_ASIC_ID_TABLE, line_num, line);
@@ -195,17 +161,5 @@ free:
 	}
 
 	free(line);
-
-	if (r && asic_id_table) {
-		while (table_size--) {
-			id = asic_id_table + table_size;
-			free(id->marketing_name);
-		}
-		free(asic_id_table);
-		asic_id_table = NULL;
-	}
-close:
 	fclose(fp);
-
-	*p_asic_id_table = asic_id_table;
 }

amdgpu/amdgpu_device.c

@@ -130,7 +130,6 @@ static int amdgpu_get_auth(int fd, int *auth)
 
 static void amdgpu_device_free_internal(amdgpu_device_handle dev)
 {
-	const struct amdgpu_asic_id *id;
 	amdgpu_vamgr_deinit(&dev->vamgr_32);
 	amdgpu_vamgr_deinit(&dev->vamgr);
 	util_hash_table_destroy(dev->bo_flink_names);
@@ -140,12 +139,7 @@ static void amdgpu_device_free_internal(amdgpu_device_handle dev)
 	close(dev->fd);
 	if ((dev->flink_fd >= 0) && (dev->fd != dev->flink_fd))
 		close(dev->flink_fd);
-	if (dev->asic_ids) {
-		for (id = dev->asic_ids; id->did; id++)
-			free(id->marketing_name);
-
-		free(dev->asic_ids);
-	}
+	free(dev->marketing_name);
 	free(dev);
 }
 
@@ -280,7 +274,7 @@ int amdgpu_device_initialize(int fd,
 	amdgpu_vamgr_init(&dev->vamgr, start, max,
 			  dev->dev_info.virtual_address_alignment);
 
-	amdgpu_parse_asic_ids(&dev->asic_ids);
+	amdgpu_parse_asic_ids(dev);
 
 	*major_version = dev->major_version;
 	*minor_version = dev->minor_version;
@@ -306,16 +300,5 @@ int amdgpu_device_deinitialize(amdgpu_device_handle dev)
 
 const char *amdgpu_get_marketing_name(amdgpu_device_handle dev)
 {
-	const struct amdgpu_asic_id *id;
-
-	if (!dev->asic_ids)
-		return NULL;
-
-	for (id = dev->asic_ids; id->did; id++) {
-		if ((id->did == dev->info.asic_id) &&
-		    (id->rid == dev->info.pci_rev_id))
-			return id->marketing_name;
-	}
-
-	return NULL;
+	return dev->marketing_name;
 }

amdgpu/amdgpu_internal.h

@@ -69,12 +69,6 @@ struct amdgpu_va {
 	struct amdgpu_bo_va_mgr *vamgr;
 };
 
-struct amdgpu_asic_id {
-	uint32_t did;
-	uint32_t rid;
-	char *marketing_name;
-};
-
 struct amdgpu_device {
 	atomic_t refcount;
 	int fd;
@@ -82,8 +76,7 @@ struct amdgpu_device {
 	unsigned major_version;
 	unsigned minor_version;
 
-	/** Lookup table of asic device id, revision id and marketing name */
-	struct amdgpu_asic_id *asic_ids;
+	char *marketing_name;
 	/** List of buffer handles. Protected by bo_table_mutex. */
 	struct util_hash_table *bo_handles;
 	/** List of buffer GEM flink names. Protected by bo_table_mutex. */
@@ -148,7 +141,7 @@ drm_private void amdgpu_vamgr_init(struct amdgpu_bo_va_mgr *mgr, uint64_t start,
 
 drm_private void amdgpu_vamgr_deinit(struct amdgpu_bo_va_mgr *mgr);
 
-drm_private void amdgpu_parse_asic_ids(struct amdgpu_asic_id **asic_ids);
+drm_private void amdgpu_parse_asic_ids(struct amdgpu_device *dev);
 
 drm_private int amdgpu_query_gpu_info_init(amdgpu_device_handle dev);