util/sconfig: Issue header for exposed PCI and PNP names
Let `sconfig` output a C header file with the symbol names that we
generate since 5e2a2cd5e7
(util/sconfig: Expose usable PCI and PNP
device names).
We add another command line argument for the path to the header
file. As the file is similar in nature to our `config.h` we simply
put it in $(obj)/ too.
Change-Id: I8f87288c82f2844b61eba6534797a42b978b47bb
Signed-off-by: Nico Huber <nico.huber@secunet.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/35488
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
This commit is contained in:
parent
15062533fc
commit
17e9bcb9b8
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@ -591,11 +591,12 @@ OVERRIDE_DEVICETREE_FILE := $(src)/mainboard/$(MAINBOARDDIR)/$(CONFIG_OVERRIDE_D
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endif
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DEVICETREE_STATIC_C := $(obj)/mainboard/$(MAINBOARDDIR)/static.c
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DEVICETREE_STATIC_H := $(obj)/static.h
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$(DEVICETREE_STATIC_C): $(DEVICETREE_FILE) $(OVERRIDE_DEVICETREE_FILE) $(objutil)/sconfig/sconfig
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@printf " SCONFIG $(subst $(src)/,,$(<))\n"
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mkdir -p $(dir $(DEVICETREE_STATIC_C))
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$(objutil)/sconfig/sconfig $(DEVICETREE_FILE) $(DEVICETREE_STATIC_C) $(OVERRIDE_DEVICETREE_FILE)
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$(objutil)/sconfig/sconfig $(DEVICETREE_FILE) $(DEVICETREE_STATIC_C) $(DEVICETREE_STATIC_H) $(OVERRIDE_DEVICETREE_FILE)
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ramstage-y+=$(DEVICETREE_STATIC_C)
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romstage-y+=$(DEVICETREE_STATIC_C)
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@ -696,7 +696,7 @@ static int dev_has_children(struct device *dev)
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return 0;
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}
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static void pass0(FILE *fil, struct device *ptr, struct device *next)
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static void pass0(FILE *fil, FILE *head, struct device *ptr, struct device *next)
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{
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if (ptr == &base_root_dev) {
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fprintf(fil, "STORAGE struct bus %s_links[];\n",
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@ -781,7 +781,7 @@ static void emit_dev_links(FILE *fil, struct device *ptr)
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fprintf(fil, "\t};\n");
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}
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static void pass1(FILE *fil, struct device *ptr, struct device *next)
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static void pass1(FILE *fil, FILE *head, struct device *ptr, struct device *next)
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{
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int pin;
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struct chip_instance *chip_ins = ptr->chip_instance;
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@ -883,16 +883,22 @@ static void pass1(FILE *fil, struct device *ptr, struct device *next)
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emit_dev_links(fil, ptr);
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}
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static void expose_device_names(FILE *fil, struct device *ptr, struct device *next)
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static void expose_device_names(FILE *fil, FILE *head, struct device *ptr, struct device *next)
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{
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/* Only devices on root bus here. */
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if (ptr->bustype == PCI && ptr->parent->dev->bustype == DOMAIN)
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if (ptr->bustype == PCI && ptr->parent->dev->bustype == DOMAIN) {
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fprintf(head, "extern DEVTREE_CONST struct device *DEVTREE_CONST __pci_0_%02x_%d;\n",
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ptr->path_a, ptr->path_b);
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fprintf(fil, "DEVTREE_CONST struct device *DEVTREE_CONST __pci_0_%02x_%d = &%s;\n",
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ptr->path_a, ptr->path_b, ptr->name);
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}
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if (ptr->bustype == PNP)
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if (ptr->bustype == PNP) {
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fprintf(head, "extern DEVTREE_CONST struct device *DEVTREE_CONST __pnp_%04x_%02x;\n",
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ptr->path_a, ptr->path_b);
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fprintf(fil, "DEVTREE_CONST struct device *DEVTREE_CONST __pnp_%04x_%02x = &%s;\n",
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ptr->path_a, ptr->path_b, ptr->name);
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}
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}
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static void add_siblings_to_queue(struct queue_entry **bfs_q_head,
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@ -916,8 +922,8 @@ static void add_children_to_queue(struct queue_entry **bfs_q_head,
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}
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}
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static void walk_device_tree(FILE *fil, struct device *ptr,
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void (*func)(FILE *, struct device *,
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static void walk_device_tree(FILE *fil, FILE *head, struct device *ptr,
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void (*func)(FILE *, FILE *, struct device *,
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struct device *))
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{
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struct queue_entry *bfs_q_head = NULL;
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@ -926,7 +932,7 @@ static void walk_device_tree(FILE *fil, struct device *ptr,
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while ((ptr = dequeue_head(&bfs_q_head))) {
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add_children_to_queue(&bfs_q_head, ptr);
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func(fil, ptr, peek_queue_head(bfs_q_head));
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func(fil, head, ptr, peek_queue_head(bfs_q_head));
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}
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}
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@ -995,7 +1001,7 @@ static void emit_chips(FILE *fil)
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}
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}
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static void inherit_subsystem_ids(FILE *file, struct device *dev,
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static void inherit_subsystem_ids(FILE *file, FILE *head, struct device *dev,
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struct device *next)
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{
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struct device *p;
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@ -1020,17 +1026,18 @@ static void inherit_subsystem_ids(FILE *file, struct device *dev,
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static void usage(void)
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{
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printf("usage: sconfig devicetree_file output_file [override_devicetree_file]\n");
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printf("usage: sconfig devicetree_file output_file header_file [override_devicetree_file]\n");
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exit(1);
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}
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enum {
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DEVICEFILE_ARG = 1,
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OUTPUTFILE_ARG,
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HEADERFILE_ARG,
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OVERRIDE_DEVICEFILE_ARG,
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};
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#define MANDATORY_ARG_COUNT 3
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#define MANDATORY_ARG_COUNT 4
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#define OPTIONAL_ARG_COUNT 1
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#define TOTAL_ARG_COUNT (MANDATORY_ARG_COUNT + OPTIONAL_ARG_COUNT)
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@ -1365,6 +1372,7 @@ int main(int argc, char **argv)
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const char *base_devtree = argv[DEVICEFILE_ARG];
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const char *outputc = argv[OUTPUTFILE_ARG];
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const char *outputh = argv[HEADERFILE_ARG];
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const char *override_devtree;
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parse_devicetree(base_devtree, &base_root_bus);
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@ -1389,18 +1397,31 @@ int main(int argc, char **argv)
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exit(1);
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}
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FILE *autohead = fopen(outputh, "w");
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if (!autohead) {
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fprintf(stderr, "Could not open file '%s' for writing: ", outputh);
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perror(NULL);
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fclose(autogen);
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exit(1);
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}
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fprintf(autohead, "#ifndef __STATIC_DEVICE_TREE_H\n");
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fprintf(autohead, "#define __STATIC_DEVICE_TREE_H\n\n");
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fprintf(autohead, "#include <device/device.h>\n\n");
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emit_chips(autogen);
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walk_device_tree(autogen, &base_root_dev, inherit_subsystem_ids);
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walk_device_tree(autogen, autohead, &base_root_dev, inherit_subsystem_ids);
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fprintf(autogen, "\n/* pass 0 */\n");
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walk_device_tree(autogen, &base_root_dev, pass0);
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walk_device_tree(autogen, autohead, &base_root_dev, pass0);
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fprintf(autogen, "\n/* pass 1 */\n");
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walk_device_tree(autogen, &base_root_dev, pass1);
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walk_device_tree(autogen, autohead, &base_root_dev, pass1);
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/* Expose static devicenames to global namespace. */
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fprintf(autogen, "\n/* expose_device_names */\n");
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walk_device_tree(autogen, &base_root_dev, expose_device_names);
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walk_device_tree(autogen, autohead, &base_root_dev, expose_device_names);
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fprintf(autohead, "\n#endif /* __STATIC_DEVICE_TREE_H */\n");
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fclose(autohead);
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fclose(autogen);
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return 0;
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