coreboot-kgpe-d16/util/sconfig/main.c

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/*
* sconfig, coreboot device tree compiler
*
* Copyright (C) 2010 coresystems GmbH
* written by Patrick Georgi <patrick@georgi-clan.de>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*/
#include <ctype.h>
#include "sconfig.h"
#include "sconfig.tab.h"
extern int linenum;
/* Maintains list of all the unique chip structures for the board. */
static struct chip chip_header;
util/sconfig: Re-factor sconfig to not assume chip as device This change adds a new structure "struct chip" to identify elements of type chip rather than re-using the structure for device. Until now chip was treated as a device while generating the parse tree and then device tree postprocessing skipped over all the chip entries in children and sibling pointers of device nodes. With this change, the device tree will only contain struct device in the parsed tree. It helps by avoiding unnecessary pointers to chip structure as children or next_sibling and then skipping those elements in post processing. Every device can then hold a pointer to its chip. When generating static.c, chip structure is emitted before device structure to ensure that the device structure has chip within its scope. Externally, the only visible change in static.c should be the order in which chip/device elements are emitted i.e. previously all chips under a particular device were emitted to static.c and then the devices using those chips. Now, all chips are emitted before all the devices in static.c BUG=b:80081934 TEST=Verified that abuild is successful for all boards. Also, verified that static.c generated for eve, kahlee, scarlet, asrock imb_a180 is unchanged from before in node definitions. Change-Id: I255092f527c8eecb144385eb681df20e54caf8f5 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/26720 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-05-31 00:09:09 +02:00
/*
* This is intentionally shared between chip and device structure ids because it
* is easier to track the order of parsing for chip and device.
*/
static int count = 0;
typedef enum {
UNSLASH,
SPLIT_1ST,
TO_LOWER,
TO_UPPER,
} translate_t;
/*
* Mainboard is assumed to have a root device whose bus is the parent of all the
* devices that are added by parsing the devicetree file. This device has a
* mainboard chip instance associated with it.
*
*
*
* +------------------------+ +----------------------+
* | Root device | | Mainboard |
* +---------+ (base_root_dev) +--------------->+ instance +
* | | | chip_instance | (mainboard_instance)|
* | +------------------------+ | |
* | | +----------------------+
* | | bus |
* | parent v |
* | +-------------------+ |
* | | Root bus | |
* +----------->+ (base_root_bus) | |
* | | |
* +-------------------+ |
* | |
* | children | chip
* v |
* X |
* (new devices will |
* be added here as |
* children) |
* |
* |
* |
* +-------+----------+
* | |
* | Mainboard chip +----------->X (new chips will be
* | (mainboard_chip) | added here)
* | |
* +------------------+
*
*
*/
/* Root device of primary tree. */
static struct device base_root_dev;
/* Root device of override tree (if applicable). */
static struct device override_root_dev;
static struct chip_instance mainboard_instance;
static struct bus base_root_bus = {
.id = 0,
.dev = &base_root_dev,
};
static struct device base_root_dev = {
.name = "dev_root",
.id = 0,
.chip_instance = &mainboard_instance,
.path = " .type = DEVICE_PATH_ROOT ",
.ops = "&default_dev_ops_root",
.parent = &base_root_bus,
.enabled = 1,
.bus = &base_root_bus,
};
static struct bus override_root_bus = {
.id = 0,
.dev = &override_root_dev,
};
static struct device override_root_dev = {
.name = "override_root",
.id = 0,
/*
* Override tree root device points to the same mainboard chip instance
* as the base tree root device. It should not cause any side-effects
* since the mainboard chip instance pointer in override tree will just
* be ignored.
*/
.chip_instance = &mainboard_instance,
.path = " .type = DEVICE_PATH_ROOT ",
.ops = "&default_dev_ops_root",
.parent = &override_root_bus,
.enabled = 1,
.bus = &override_root_bus,
};
static struct chip mainboard_chip = {
.name = "mainboard",
.name_underscore = "mainboard",
.instance = &mainboard_instance,
};
static struct chip_instance mainboard_instance = {
.id = 0,
.chip = &mainboard_chip,
};
/* This is the parent of all devices added by parsing the devicetree file. */
struct bus *root_parent;
struct queue_entry {
util/sconfig: Re-factor sconfig to not assume chip as device This change adds a new structure "struct chip" to identify elements of type chip rather than re-using the structure for device. Until now chip was treated as a device while generating the parse tree and then device tree postprocessing skipped over all the chip entries in children and sibling pointers of device nodes. With this change, the device tree will only contain struct device in the parsed tree. It helps by avoiding unnecessary pointers to chip structure as children or next_sibling and then skipping those elements in post processing. Every device can then hold a pointer to its chip. When generating static.c, chip structure is emitted before device structure to ensure that the device structure has chip within its scope. Externally, the only visible change in static.c should be the order in which chip/device elements are emitted i.e. previously all chips under a particular device were emitted to static.c and then the devices using those chips. Now, all chips are emitted before all the devices in static.c BUG=b:80081934 TEST=Verified that abuild is successful for all boards. Also, verified that static.c generated for eve, kahlee, scarlet, asrock imb_a180 is unchanged from before in node definitions. Change-Id: I255092f527c8eecb144385eb681df20e54caf8f5 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/26720 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-05-31 00:09:09 +02:00
void *data;
struct queue_entry *next;
struct queue_entry *prev;
};
util/sconfig: Re-factor sconfig to not assume chip as device This change adds a new structure "struct chip" to identify elements of type chip rather than re-using the structure for device. Until now chip was treated as a device while generating the parse tree and then device tree postprocessing skipped over all the chip entries in children and sibling pointers of device nodes. With this change, the device tree will only contain struct device in the parsed tree. It helps by avoiding unnecessary pointers to chip structure as children or next_sibling and then skipping those elements in post processing. Every device can then hold a pointer to its chip. When generating static.c, chip structure is emitted before device structure to ensure that the device structure has chip within its scope. Externally, the only visible change in static.c should be the order in which chip/device elements are emitted i.e. previously all chips under a particular device were emitted to static.c and then the devices using those chips. Now, all chips are emitted before all the devices in static.c BUG=b:80081934 TEST=Verified that abuild is successful for all boards. Also, verified that static.c generated for eve, kahlee, scarlet, asrock imb_a180 is unchanged from before in node definitions. Change-Id: I255092f527c8eecb144385eb681df20e54caf8f5 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/26720 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-05-31 00:09:09 +02:00
#define S_ALLOC(_s) s_alloc(__func__, _s)
util/sconfig: Re-factor sconfig to not assume chip as device This change adds a new structure "struct chip" to identify elements of type chip rather than re-using the structure for device. Until now chip was treated as a device while generating the parse tree and then device tree postprocessing skipped over all the chip entries in children and sibling pointers of device nodes. With this change, the device tree will only contain struct device in the parsed tree. It helps by avoiding unnecessary pointers to chip structure as children or next_sibling and then skipping those elements in post processing. Every device can then hold a pointer to its chip. When generating static.c, chip structure is emitted before device structure to ensure that the device structure has chip within its scope. Externally, the only visible change in static.c should be the order in which chip/device elements are emitted i.e. previously all chips under a particular device were emitted to static.c and then the devices using those chips. Now, all chips are emitted before all the devices in static.c BUG=b:80081934 TEST=Verified that abuild is successful for all boards. Also, verified that static.c generated for eve, kahlee, scarlet, asrock imb_a180 is unchanged from before in node definitions. Change-Id: I255092f527c8eecb144385eb681df20e54caf8f5 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/26720 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-05-31 00:09:09 +02:00
static void *s_alloc(const char *f, size_t s)
{
void *data = calloc(1, s);
if (!data) {
fprintf(stderr, "%s: Failed to alloc mem!\n", f);
util/sconfig: Re-factor sconfig to not assume chip as device This change adds a new structure "struct chip" to identify elements of type chip rather than re-using the structure for device. Until now chip was treated as a device while generating the parse tree and then device tree postprocessing skipped over all the chip entries in children and sibling pointers of device nodes. With this change, the device tree will only contain struct device in the parsed tree. It helps by avoiding unnecessary pointers to chip structure as children or next_sibling and then skipping those elements in post processing. Every device can then hold a pointer to its chip. When generating static.c, chip structure is emitted before device structure to ensure that the device structure has chip within its scope. Externally, the only visible change in static.c should be the order in which chip/device elements are emitted i.e. previously all chips under a particular device were emitted to static.c and then the devices using those chips. Now, all chips are emitted before all the devices in static.c BUG=b:80081934 TEST=Verified that abuild is successful for all boards. Also, verified that static.c generated for eve, kahlee, scarlet, asrock imb_a180 is unchanged from before in node definitions. Change-Id: I255092f527c8eecb144385eb681df20e54caf8f5 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/26720 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-05-31 00:09:09 +02:00
exit(1);
}
return data;
}
static struct queue_entry *new_queue_entry(void *data)
{
struct queue_entry *e = S_ALLOC(sizeof(*e));
util/sconfig: Re-factor sconfig to not assume chip as device This change adds a new structure "struct chip" to identify elements of type chip rather than re-using the structure for device. Until now chip was treated as a device while generating the parse tree and then device tree postprocessing skipped over all the chip entries in children and sibling pointers of device nodes. With this change, the device tree will only contain struct device in the parsed tree. It helps by avoiding unnecessary pointers to chip structure as children or next_sibling and then skipping those elements in post processing. Every device can then hold a pointer to its chip. When generating static.c, chip structure is emitted before device structure to ensure that the device structure has chip within its scope. Externally, the only visible change in static.c should be the order in which chip/device elements are emitted i.e. previously all chips under a particular device were emitted to static.c and then the devices using those chips. Now, all chips are emitted before all the devices in static.c BUG=b:80081934 TEST=Verified that abuild is successful for all boards. Also, verified that static.c generated for eve, kahlee, scarlet, asrock imb_a180 is unchanged from before in node definitions. Change-Id: I255092f527c8eecb144385eb681df20e54caf8f5 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/26720 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-05-31 00:09:09 +02:00
e->data = data;
e->next = e->prev = e;
return e;
}
static void enqueue_tail(struct queue_entry **q_head, void *data)
util/sconfig: Re-factor sconfig to not assume chip as device This change adds a new structure "struct chip" to identify elements of type chip rather than re-using the structure for device. Until now chip was treated as a device while generating the parse tree and then device tree postprocessing skipped over all the chip entries in children and sibling pointers of device nodes. With this change, the device tree will only contain struct device in the parsed tree. It helps by avoiding unnecessary pointers to chip structure as children or next_sibling and then skipping those elements in post processing. Every device can then hold a pointer to its chip. When generating static.c, chip structure is emitted before device structure to ensure that the device structure has chip within its scope. Externally, the only visible change in static.c should be the order in which chip/device elements are emitted i.e. previously all chips under a particular device were emitted to static.c and then the devices using those chips. Now, all chips are emitted before all the devices in static.c BUG=b:80081934 TEST=Verified that abuild is successful for all boards. Also, verified that static.c generated for eve, kahlee, scarlet, asrock imb_a180 is unchanged from before in node definitions. Change-Id: I255092f527c8eecb144385eb681df20e54caf8f5 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/26720 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-05-31 00:09:09 +02:00
{
struct queue_entry *tmp = new_queue_entry(data);
struct queue_entry *q = *q_head;
util/sconfig: Re-factor sconfig to not assume chip as device This change adds a new structure "struct chip" to identify elements of type chip rather than re-using the structure for device. Until now chip was treated as a device while generating the parse tree and then device tree postprocessing skipped over all the chip entries in children and sibling pointers of device nodes. With this change, the device tree will only contain struct device in the parsed tree. It helps by avoiding unnecessary pointers to chip structure as children or next_sibling and then skipping those elements in post processing. Every device can then hold a pointer to its chip. When generating static.c, chip structure is emitted before device structure to ensure that the device structure has chip within its scope. Externally, the only visible change in static.c should be the order in which chip/device elements are emitted i.e. previously all chips under a particular device were emitted to static.c and then the devices using those chips. Now, all chips are emitted before all the devices in static.c BUG=b:80081934 TEST=Verified that abuild is successful for all boards. Also, verified that static.c generated for eve, kahlee, scarlet, asrock imb_a180 is unchanged from before in node definitions. Change-Id: I255092f527c8eecb144385eb681df20e54caf8f5 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/26720 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-05-31 00:09:09 +02:00
if (!q) {
*q_head = tmp;
util/sconfig: Re-factor sconfig to not assume chip as device This change adds a new structure "struct chip" to identify elements of type chip rather than re-using the structure for device. Until now chip was treated as a device while generating the parse tree and then device tree postprocessing skipped over all the chip entries in children and sibling pointers of device nodes. With this change, the device tree will only contain struct device in the parsed tree. It helps by avoiding unnecessary pointers to chip structure as children or next_sibling and then skipping those elements in post processing. Every device can then hold a pointer to its chip. When generating static.c, chip structure is emitted before device structure to ensure that the device structure has chip within its scope. Externally, the only visible change in static.c should be the order in which chip/device elements are emitted i.e. previously all chips under a particular device were emitted to static.c and then the devices using those chips. Now, all chips are emitted before all the devices in static.c BUG=b:80081934 TEST=Verified that abuild is successful for all boards. Also, verified that static.c generated for eve, kahlee, scarlet, asrock imb_a180 is unchanged from before in node definitions. Change-Id: I255092f527c8eecb144385eb681df20e54caf8f5 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/26720 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-05-31 00:09:09 +02:00
return;
}
q->prev->next = tmp;
tmp->prev = q->prev;
q->prev = tmp;
tmp->next = q;
}
static void *dequeue_tail(struct queue_entry **q_head)
util/sconfig: Re-factor sconfig to not assume chip as device This change adds a new structure "struct chip" to identify elements of type chip rather than re-using the structure for device. Until now chip was treated as a device while generating the parse tree and then device tree postprocessing skipped over all the chip entries in children and sibling pointers of device nodes. With this change, the device tree will only contain struct device in the parsed tree. It helps by avoiding unnecessary pointers to chip structure as children or next_sibling and then skipping those elements in post processing. Every device can then hold a pointer to its chip. When generating static.c, chip structure is emitted before device structure to ensure that the device structure has chip within its scope. Externally, the only visible change in static.c should be the order in which chip/device elements are emitted i.e. previously all chips under a particular device were emitted to static.c and then the devices using those chips. Now, all chips are emitted before all the devices in static.c BUG=b:80081934 TEST=Verified that abuild is successful for all boards. Also, verified that static.c generated for eve, kahlee, scarlet, asrock imb_a180 is unchanged from before in node definitions. Change-Id: I255092f527c8eecb144385eb681df20e54caf8f5 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/26720 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-05-31 00:09:09 +02:00
{
struct queue_entry *q = *q_head;
struct queue_entry *tmp;
util/sconfig: Re-factor sconfig to not assume chip as device This change adds a new structure "struct chip" to identify elements of type chip rather than re-using the structure for device. Until now chip was treated as a device while generating the parse tree and then device tree postprocessing skipped over all the chip entries in children and sibling pointers of device nodes. With this change, the device tree will only contain struct device in the parsed tree. It helps by avoiding unnecessary pointers to chip structure as children or next_sibling and then skipping those elements in post processing. Every device can then hold a pointer to its chip. When generating static.c, chip structure is emitted before device structure to ensure that the device structure has chip within its scope. Externally, the only visible change in static.c should be the order in which chip/device elements are emitted i.e. previously all chips under a particular device were emitted to static.c and then the devices using those chips. Now, all chips are emitted before all the devices in static.c BUG=b:80081934 TEST=Verified that abuild is successful for all boards. Also, verified that static.c generated for eve, kahlee, scarlet, asrock imb_a180 is unchanged from before in node definitions. Change-Id: I255092f527c8eecb144385eb681df20e54caf8f5 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/26720 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-05-31 00:09:09 +02:00
void *data;
if (!q)
return NULL;
tmp = q->prev;
util/sconfig: Re-factor sconfig to not assume chip as device This change adds a new structure "struct chip" to identify elements of type chip rather than re-using the structure for device. Until now chip was treated as a device while generating the parse tree and then device tree postprocessing skipped over all the chip entries in children and sibling pointers of device nodes. With this change, the device tree will only contain struct device in the parsed tree. It helps by avoiding unnecessary pointers to chip structure as children or next_sibling and then skipping those elements in post processing. Every device can then hold a pointer to its chip. When generating static.c, chip structure is emitted before device structure to ensure that the device structure has chip within its scope. Externally, the only visible change in static.c should be the order in which chip/device elements are emitted i.e. previously all chips under a particular device were emitted to static.c and then the devices using those chips. Now, all chips are emitted before all the devices in static.c BUG=b:80081934 TEST=Verified that abuild is successful for all boards. Also, verified that static.c generated for eve, kahlee, scarlet, asrock imb_a180 is unchanged from before in node definitions. Change-Id: I255092f527c8eecb144385eb681df20e54caf8f5 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/26720 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-05-31 00:09:09 +02:00
if (tmp == q)
*q_head = NULL;
util/sconfig: Re-factor sconfig to not assume chip as device This change adds a new structure "struct chip" to identify elements of type chip rather than re-using the structure for device. Until now chip was treated as a device while generating the parse tree and then device tree postprocessing skipped over all the chip entries in children and sibling pointers of device nodes. With this change, the device tree will only contain struct device in the parsed tree. It helps by avoiding unnecessary pointers to chip structure as children or next_sibling and then skipping those elements in post processing. Every device can then hold a pointer to its chip. When generating static.c, chip structure is emitted before device structure to ensure that the device structure has chip within its scope. Externally, the only visible change in static.c should be the order in which chip/device elements are emitted i.e. previously all chips under a particular device were emitted to static.c and then the devices using those chips. Now, all chips are emitted before all the devices in static.c BUG=b:80081934 TEST=Verified that abuild is successful for all boards. Also, verified that static.c generated for eve, kahlee, scarlet, asrock imb_a180 is unchanged from before in node definitions. Change-Id: I255092f527c8eecb144385eb681df20e54caf8f5 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/26720 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-05-31 00:09:09 +02:00
else {
tmp->prev->next = q;
q->prev = tmp->prev;
}
data = tmp->data;
free(tmp);
return data;
}
static void *dequeue_head(struct queue_entry **q_head)
{
struct queue_entry *q = *q_head;
struct queue_entry *tmp = q;
void *data;
if (!q)
return NULL;
if (q->next == q)
*q_head = NULL;
else {
q->next->prev = q->prev;
q->prev->next = q->next;
*q_head = q->next;
}
data = tmp->data;
free(tmp);
return data;
}
static void *peek_queue_head(struct queue_entry *q_head)
{
if (!q_head)
return NULL;
return q_head->data;
}
static struct queue_entry *chip_q_head;
void chip_enqueue_tail(void *data)
{
enqueue_tail(&chip_q_head, data);
}
void *chip_dequeue_tail(void)
{
return dequeue_tail(&chip_q_head);
}
int yywrap(void)
{
return 1;
}
void yyerror(char const *str)
{
extern char *yytext;
fprintf(stderr, "line %d: %s: %s\n", linenum + 1, yytext, str);
exit(1);
}
char *translate_name(const char *str, translate_t mode)
{
char *b, *c;
b = c = strdup(str);
while (c && *c) {
if ((mode == SPLIT_1ST) && (*c == '/')) {
*c = 0;
break;
}
if (*c == '/')
*c = '_';
if (*c == '-')
*c = '_';
if (mode == TO_UPPER)
*c = toupper(*c);
if (mode == TO_LOWER)
*c = tolower(*c);
c++;
}
return b;
}
static struct chip *get_chip(char *path)
{
struct chip *h = &chip_header;
while (h->next) {
int result = strcmp(path, h->next->name);
if (result == 0)
return h->next;
if (result < 0)
break;
h = h->next;
}
struct chip *new_chip = S_ALLOC(sizeof(struct chip));
new_chip->next = h->next;
h->next = new_chip;
util/sconfig: Re-factor sconfig to not assume chip as device This change adds a new structure "struct chip" to identify elements of type chip rather than re-using the structure for device. Until now chip was treated as a device while generating the parse tree and then device tree postprocessing skipped over all the chip entries in children and sibling pointers of device nodes. With this change, the device tree will only contain struct device in the parsed tree. It helps by avoiding unnecessary pointers to chip structure as children or next_sibling and then skipping those elements in post processing. Every device can then hold a pointer to its chip. When generating static.c, chip structure is emitted before device structure to ensure that the device structure has chip within its scope. Externally, the only visible change in static.c should be the order in which chip/device elements are emitted i.e. previously all chips under a particular device were emitted to static.c and then the devices using those chips. Now, all chips are emitted before all the devices in static.c BUG=b:80081934 TEST=Verified that abuild is successful for all boards. Also, verified that static.c generated for eve, kahlee, scarlet, asrock imb_a180 is unchanged from before in node definitions. Change-Id: I255092f527c8eecb144385eb681df20e54caf8f5 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/26720 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-05-31 00:09:09 +02:00
new_chip->chiph_exists = 1;
new_chip->name = path;
new_chip->name_underscore = translate_name(path, UNSLASH);
struct stat st;
char *chip_h = S_ALLOC(strlen(path) + 18);
sprintf(chip_h, "src/%s", path);
if ((stat(chip_h, &st) == -1) && (errno == ENOENT)) {
/* root_complex gets away without a separate directory, but
* exists on on pretty much all AMD chipsets.
*/
if (!strstr(path, "/root_complex")) {
fprintf(stderr, "ERROR: Chip component %s does not exist.\n",
path);
exit(1);
}
}
sprintf(chip_h, "src/%s/chip.h", path);
if ((stat(chip_h, &st) == -1) && (errno == ENOENT))
new_chip->chiph_exists = 0;
free(chip_h);
util/sconfig: Re-factor sconfig to not assume chip as device This change adds a new structure "struct chip" to identify elements of type chip rather than re-using the structure for device. Until now chip was treated as a device while generating the parse tree and then device tree postprocessing skipped over all the chip entries in children and sibling pointers of device nodes. With this change, the device tree will only contain struct device in the parsed tree. It helps by avoiding unnecessary pointers to chip structure as children or next_sibling and then skipping those elements in post processing. Every device can then hold a pointer to its chip. When generating static.c, chip structure is emitted before device structure to ensure that the device structure has chip within its scope. Externally, the only visible change in static.c should be the order in which chip/device elements are emitted i.e. previously all chips under a particular device were emitted to static.c and then the devices using those chips. Now, all chips are emitted before all the devices in static.c BUG=b:80081934 TEST=Verified that abuild is successful for all boards. Also, verified that static.c generated for eve, kahlee, scarlet, asrock imb_a180 is unchanged from before in node definitions. Change-Id: I255092f527c8eecb144385eb681df20e54caf8f5 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/26720 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-05-31 00:09:09 +02:00
return new_chip;
}
struct chip_instance *new_chip_instance(char *path)
{
struct chip *chip = get_chip(path);
struct chip_instance *instance = S_ALLOC(sizeof(*instance));
instance->id = ++count;
instance->chip = chip;
instance->next = chip->instance;
chip->instance = instance;
return instance;
}
/*
* Allocate a new bus for the provided device.
* - If this is the first bus being allocated under this device, then its id
* is set to 0 and bus and last_bus are pointed to the newly allocated bus.
* - If this is not the first bus under this device, then its id is set to 1
* plus the id of last bus and newly allocated bus is added to the list of
* buses under the device. last_bus is updated to point to the newly
* allocated bus.
*/
static void alloc_bus(struct device *dev)
{
struct bus *bus = S_ALLOC(sizeof(*bus));
bus->dev = dev;
if (dev->last_bus == NULL) {
bus->id = 0;
dev->bus = bus;
} else {
bus->id = dev->last_bus->id + 1;
dev->last_bus->next_bus = bus;
}
dev->last_bus = bus;
}
/*
* Allocate a new device under the given parent. This function allocates a new
* device structure under the provided parent bus and allocates a bus structure
* under the newly allocated device.
*/
static struct device *alloc_dev(struct bus *parent)
{
struct device *dev = S_ALLOC(sizeof(*dev));
dev->id = ++count;
dev->parent = parent;
dev->subsystem_vendor = -1;
dev->subsystem_device = -1;
alloc_bus(dev);
return dev;
}
/*
* This function scans the children of given bus to see if any device matches
* the new device that is requested.
*
* Returns pointer to the node if found, else NULL.
*/
static struct device *get_dev(struct bus *parent, int path_a, int path_b,
int bustype, struct chip_instance *chip_instance)
{
struct device *child = parent->children;
while (child) {
if ((child->path_a == path_a) && (child->path_b == path_b) &&
(child->bustype == bustype) &&
(child->chip_instance == chip_instance))
return child;
child = child->sibling;
}
return NULL;
}
struct device *new_device(struct bus *parent,
struct chip_instance *chip_instance,
const int bustype, const char *devnum,
util/sconfig: Re-factor sconfig to not assume chip as device This change adds a new structure "struct chip" to identify elements of type chip rather than re-using the structure for device. Until now chip was treated as a device while generating the parse tree and then device tree postprocessing skipped over all the chip entries in children and sibling pointers of device nodes. With this change, the device tree will only contain struct device in the parsed tree. It helps by avoiding unnecessary pointers to chip structure as children or next_sibling and then skipping those elements in post processing. Every device can then hold a pointer to its chip. When generating static.c, chip structure is emitted before device structure to ensure that the device structure has chip within its scope. Externally, the only visible change in static.c should be the order in which chip/device elements are emitted i.e. previously all chips under a particular device were emitted to static.c and then the devices using those chips. Now, all chips are emitted before all the devices in static.c BUG=b:80081934 TEST=Verified that abuild is successful for all boards. Also, verified that static.c generated for eve, kahlee, scarlet, asrock imb_a180 is unchanged from before in node definitions. Change-Id: I255092f527c8eecb144385eb681df20e54caf8f5 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/26720 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-05-31 00:09:09 +02:00
int enabled)
{
char *tmp;
int path_a;
int path_b = 0;
struct device *new_d;
path_a = strtol(devnum, &tmp, 16);
if (*tmp == '.') {
tmp++;
path_b = strtol(tmp, NULL, 16);
}
/* If device is found under parent, no need to allocate new device. */
new_d = get_dev(parent, path_a, path_b, bustype, chip_instance);
if (new_d) {
alloc_bus(new_d);
return new_d;
}
new_d = alloc_dev(parent);
new_d->bustype = bustype;
new_d->path_a = path_a;
new_d->path_b = path_b;
char *name = S_ALLOC(10);
sprintf(name, "_dev%d", new_d->id);
new_d->name = name;
util/sconfig: Re-factor sconfig to not assume chip as device This change adds a new structure "struct chip" to identify elements of type chip rather than re-using the structure for device. Until now chip was treated as a device while generating the parse tree and then device tree postprocessing skipped over all the chip entries in children and sibling pointers of device nodes. With this change, the device tree will only contain struct device in the parsed tree. It helps by avoiding unnecessary pointers to chip structure as children or next_sibling and then skipping those elements in post processing. Every device can then hold a pointer to its chip. When generating static.c, chip structure is emitted before device structure to ensure that the device structure has chip within its scope. Externally, the only visible change in static.c should be the order in which chip/device elements are emitted i.e. previously all chips under a particular device were emitted to static.c and then the devices using those chips. Now, all chips are emitted before all the devices in static.c BUG=b:80081934 TEST=Verified that abuild is successful for all boards. Also, verified that static.c generated for eve, kahlee, scarlet, asrock imb_a180 is unchanged from before in node definitions. Change-Id: I255092f527c8eecb144385eb681df20e54caf8f5 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/26720 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-05-31 00:09:09 +02:00
new_d->enabled = enabled;
new_d->chip_instance = chip_instance;
struct device *c = parent->children;
if (c) {
while (c->sibling)
c = c->sibling;
c->sibling = new_d;
} else
parent->children = new_d;
switch (bustype) {
case PCI:
new_d->path = ".type=DEVICE_PATH_PCI,{.pci={ .devfn = PCI_DEVFN(0x%x,%d)}}";
break;
case PNP:
new_d->path = ".type=DEVICE_PATH_PNP,{.pnp={ .port = 0x%x, .device = 0x%x }}";
break;
case I2C:
new_d->path = ".type=DEVICE_PATH_I2C,{.i2c={ .device = 0x%x, .mode_10bit = %d }}";
break;
case APIC:
new_d->path = ".type=DEVICE_PATH_APIC,{.apic={ .apic_id = 0x%x }}";
break;
case CPU_CLUSTER:
new_d->path = ".type=DEVICE_PATH_CPU_CLUSTER,{.cpu_cluster={ .cluster = 0x%x }}";
break;
case CPU:
new_d->path = ".type=DEVICE_PATH_CPU,{.cpu={ .id = 0x%x }}";
break;
case DOMAIN:
new_d->path = ".type=DEVICE_PATH_DOMAIN,{.domain={ .domain = 0x%x }}";
break;
case IOAPIC:
new_d->path = ".type=DEVICE_PATH_IOAPIC,{.ioapic={ .ioapic_id = 0x%x }}";
break;
case GENERIC:
new_d->path = ".type=DEVICE_PATH_GENERIC,{.generic={ .id = 0x%x, .subid = 0x%x }}";
break;
case SPI:
new_d->path = ".type=DEVICE_PATH_SPI,{.spi={ .cs = 0x%x }}";
break;
case USB:
new_d->path = ".type=DEVICE_PATH_USB,{.usb={ .port_type = %d, .port_id = %d }}";
break;
case MMIO:
new_d->path = ".type=DEVICE_PATH_MMIO,{.mmio={ .addr = 0x%x }}";
break;
}
return new_d;
}
void add_resource(struct bus *bus, int type, int index, int base)
{
struct device *dev = bus->dev;
struct resource *r = S_ALLOC(sizeof(struct resource));
r->type = type;
r->index = index;
r->base = base;
if (dev->res) {
struct resource *head = dev->res;
while (head->next)
head = head->next;
head->next = r;
} else {
dev->res = r;
}
}
void add_register(struct chip_instance *chip_instance, char *name, char *val)
{
struct reg *r = S_ALLOC(sizeof(struct reg));
r->key = name;
r->value = val;
if (chip_instance->reg) {
struct reg *head = chip_instance->reg;
// sorting to be equal to sconfig's behaviour
int sort = strcmp(r->key, head->key);
if (sort == 0) {
printf("ERROR: duplicate 'register' key.\n");
exit(1);
}
if (sort < 0) {
r->next = head;
chip_instance->reg = r;
} else {
while ((head->next)
&& (strcmp(head->next->key, r->key) < 0))
head = head->next;
r->next = head->next;
head->next = r;
}
} else {
chip_instance->reg = r;
}
}
void add_pci_subsystem_ids(struct bus *bus, int vendor, int device,
int inherit)
{
struct device *dev = bus->dev;
if (dev->bustype != PCI && dev->bustype != DOMAIN) {
printf("ERROR: 'subsystem' only allowed for PCI devices\n");
exit(1);
}
dev->subsystem_vendor = vendor;
dev->subsystem_device = device;
dev->inherit_subsystem = inherit;
}
void add_ioapic_info(struct bus *bus, int apicid, const char *_srcpin,
int irqpin)
{
int srcpin;
struct device *dev = bus->dev;
if (!_srcpin || strlen(_srcpin) < 4 || strncasecmp(_srcpin, "INT", 3) ||
_srcpin[3] < 'A' || _srcpin[3] > 'D') {
printf("ERROR: malformed ioapic_irq args: %s\n", _srcpin);
exit(1);
}
srcpin = _srcpin[3] - 'A';
if (dev->bustype != PCI && dev->bustype != DOMAIN) {
printf("ERROR: ioapic config only allowed for PCI devices\n");
exit(1);
}
if (srcpin > 3) {
printf("ERROR: srcpin '%d' invalid\n", srcpin);
exit(1);
}
dev->pci_irq_info[srcpin].ioapic_irq_pin = irqpin;
dev->pci_irq_info[srcpin].ioapic_dst_id = apicid;
}
static int dev_has_children(struct device *dev)
{
struct bus *bus = dev->bus;
while (bus) {
if (bus->children)
return 1;
bus = bus->next_bus;
}
return 0;
}
static void pass0(FILE *fil, struct device *ptr, struct device *next)
{
if (ptr == &base_root_dev) {
fprintf(fil, "DEVTREE_CONST struct bus %s_links[];\n",
ptr->name);
return;
}
Make the device tree available in the rom stage We thought about two ways to do this change. The way we decided to try was to 1. drop all ops from devices in romstage 2. constify all devices in romstage (make them read-only) so we can compile static.c into romstage 3. the device tree "devices" can be used to read configuration from the device tree (and nothing else, really) 4. the device tree devices are accessed through struct device * in romstage only. device_t stays the typedef to int in romstage 5. Use the same static.c file in ramstage and romstage We declare structs as follows: ROMSTAGE_CONST struct bus dev_root_links[]; ROMSTAGE_CONST is const in romstage and empty in ramstage; This forces all of the device tree into the text area. So a struct looks like this: static ROMSTAGE_CONST struct device _dev21 = { #ifndef __PRE_RAM__ .ops = 0, #endif .bus = &_dev7_links[0], .path = {.type=DEVICE_PATH_PCI,{.pci={ .devfn = PCI_DEVFN(0x1c,3)}}}, .enabled = 0, .on_mainboard = 1, .subsystem_vendor = 0x1ae0, .subsystem_device = 0xc000, .link_list = NULL, .sibling = &_dev22, #ifndef __PRE_RAM__ .chip_ops = &southbridge_intel_bd82x6x_ops, #endif .chip_info = &southbridge_intel_bd82x6x_info_10, .next=&_dev22 }; Change-Id: I722454d8d3c40baf7df989f5a6891f6ba7db5727 Signed-off-by: Ronald G. Minnich <rminnich@chromium.org> Signed-off-by: Stefan Reinauer <reinauer@google.com> Reviewed-on: http://review.coreboot.org/1398 Tested-by: build bot (Jenkins) Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
2012-08-01 01:47:25 +02:00
fprintf(fil, "DEVTREE_CONST static struct device %s;\n", ptr->name);
if (ptr->res)
fprintf(fil, "DEVTREE_CONST struct resource %s_res[];\n",
ptr->name);
if (dev_has_children(ptr))
fprintf(fil, "DEVTREE_CONST struct bus %s_links[];\n",
ptr->name);
if (next)
return;
fprintf(fil,
"DEVTREE_CONST struct device * DEVTREE_CONST last_dev = &%s;\n",
ptr->name);
}
static void emit_resources(FILE *fil, struct device *ptr)
{
if (ptr->res == NULL)
return;
int i = 1;
fprintf(fil, "DEVTREE_CONST struct resource %s_res[] = {\n", ptr->name);
struct resource *r = ptr->res;
while (r) {
fprintf(fil,
"\t\t{ .flags=IORESOURCE_FIXED | IORESOURCE_ASSIGNED | IORESOURCE_");
if (r->type == IRQ)
fprintf(fil, "IRQ");
if (r->type == DRQ)
fprintf(fil, "DRQ");
if (r->type == IO)
fprintf(fil, "IO");
fprintf(fil, ", .index=0x%x, .base=0x%x,", r->index,
r->base);
if (r->next)
fprintf(fil, ".next=&%s_res[%d]},\n", ptr->name,
i++);
else
fprintf(fil, ".next=NULL },\n");
r = r->next;
}
fprintf(fil, "\t };\n");
}
static void emit_bus(FILE *fil, struct bus *bus)
{
fprintf(fil, "\t\t[%d] = {\n", bus->id);
fprintf(fil, "\t\t\t.link_num = %d,\n", bus->id);
fprintf(fil, "\t\t\t.dev = &%s,\n", bus->dev->name);
if (bus->children)
fprintf(fil, "\t\t\t.children = &%s,\n", bus->children->name);
if (bus->next_bus)
fprintf(fil, "\t\t\t.next=&%s_links[%d],\n", bus->dev->name,
bus->id + 1);
else
fprintf(fil, "\t\t\t.next = NULL,\n");
fprintf(fil, "\t\t},\n");
}
static void emit_dev_links(FILE *fil, struct device *ptr)
{
fprintf(fil, "DEVTREE_CONST struct bus %s_links[] = {\n",
ptr->name);
struct bus *bus = ptr->bus;
while (bus) {
emit_bus(fil, bus);
bus = bus->next_bus;
}
fprintf(fil, "\t};\n");
}
static void pass1(FILE *fil, struct device *ptr, struct device *next)
{
int pin;
struct chip_instance *chip_ins = ptr->chip_instance;
int has_children = dev_has_children(ptr);
util/sconfig: Re-factor sconfig to not assume chip as device This change adds a new structure "struct chip" to identify elements of type chip rather than re-using the structure for device. Until now chip was treated as a device while generating the parse tree and then device tree postprocessing skipped over all the chip entries in children and sibling pointers of device nodes. With this change, the device tree will only contain struct device in the parsed tree. It helps by avoiding unnecessary pointers to chip structure as children or next_sibling and then skipping those elements in post processing. Every device can then hold a pointer to its chip. When generating static.c, chip structure is emitted before device structure to ensure that the device structure has chip within its scope. Externally, the only visible change in static.c should be the order in which chip/device elements are emitted i.e. previously all chips under a particular device were emitted to static.c and then the devices using those chips. Now, all chips are emitted before all the devices in static.c BUG=b:80081934 TEST=Verified that abuild is successful for all boards. Also, verified that static.c generated for eve, kahlee, scarlet, asrock imb_a180 is unchanged from before in node definitions. Change-Id: I255092f527c8eecb144385eb681df20e54caf8f5 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/26720 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-05-31 00:09:09 +02:00
if (ptr != &base_root_dev)
fprintf(fil, "static ");
fprintf(fil, "DEVTREE_CONST struct device %s = {\n", ptr->name);
fprintf(fil, "#if !DEVTREE_EARLY\n");
fprintf(fil, "\t.ops = %s,\n", (ptr->ops) ? (ptr->ops) : "0");
fprintf(fil, "#endif\n");
fprintf(fil, "\t.bus = &%s_links[%d],\n", ptr->parent->dev->name,
ptr->parent->id);
fprintf(fil, "\t.path = {");
fprintf(fil, ptr->path, ptr->path_a, ptr->path_b);
fprintf(fil, "},\n");
fprintf(fil, "\t.enabled = %d,\n", ptr->enabled);
fprintf(fil, "\t.on_mainboard = 1,\n");
if (ptr->subsystem_vendor > 0)
fprintf(fil, "\t.subsystem_vendor = 0x%04x,\n",
ptr->subsystem_vendor);
for (pin = 0; pin < 4; pin++) {
if (ptr->pci_irq_info[pin].ioapic_irq_pin > 0)
fprintf(fil,
"\t.pci_irq_info[%d].ioapic_irq_pin = %d,\n",
pin, ptr->pci_irq_info[pin].ioapic_irq_pin);
if (ptr->pci_irq_info[pin].ioapic_dst_id > 0)
fprintf(fil,
"\t.pci_irq_info[%d].ioapic_dst_id = %d,\n",
pin, ptr->pci_irq_info[pin].ioapic_dst_id);
}
if (ptr->subsystem_device > 0)
fprintf(fil, "\t.subsystem_device = 0x%04x,\n",
ptr->subsystem_device);
if (ptr->res) {
fprintf(fil, "\t.resource_list = &%s_res[0],\n",
ptr->name);
}
if (has_children)
fprintf(fil, "\t.link_list = &%s_links[0],\n",
ptr->name);
else
fprintf(fil, "\t.link_list = NULL,\n");
if (ptr->sibling)
fprintf(fil, "\t.sibling = &%s,\n", ptr->sibling->name);
fprintf(fil, "#if !DEVTREE_EARLY\n");
fprintf(fil, "\t.chip_ops = &%s_ops,\n",
chip_ins->chip->name_underscore);
if (chip_ins == &mainboard_instance)
fprintf(fil, "\t.name = mainboard_name,\n");
fprintf(fil, "#endif\n");
if (chip_ins->chip->chiph_exists)
fprintf(fil, "\t.chip_info = &%s_info_%d,\n",
chip_ins->chip->name_underscore, chip_ins->id);
if (next)
fprintf(fil, "\t.next=&%s\n", next->name);
fprintf(fil, "};\n");
emit_resources(fil, ptr);
if (has_children)
emit_dev_links(fil, ptr);
}
static void add_siblings_to_queue(struct queue_entry **bfs_q_head,
struct device *d)
{
while (d) {
enqueue_tail(bfs_q_head, d);
d = d->sibling;
}
}
static void add_children_to_queue(struct queue_entry **bfs_q_head,
struct device *d)
{
struct bus *bus = d->bus;
while (bus) {
if (bus->children)
add_siblings_to_queue(bfs_q_head, bus->children);
bus = bus->next_bus;
}
util/sconfig: Re-factor sconfig to not assume chip as device This change adds a new structure "struct chip" to identify elements of type chip rather than re-using the structure for device. Until now chip was treated as a device while generating the parse tree and then device tree postprocessing skipped over all the chip entries in children and sibling pointers of device nodes. With this change, the device tree will only contain struct device in the parsed tree. It helps by avoiding unnecessary pointers to chip structure as children or next_sibling and then skipping those elements in post processing. Every device can then hold a pointer to its chip. When generating static.c, chip structure is emitted before device structure to ensure that the device structure has chip within its scope. Externally, the only visible change in static.c should be the order in which chip/device elements are emitted i.e. previously all chips under a particular device were emitted to static.c and then the devices using those chips. Now, all chips are emitted before all the devices in static.c BUG=b:80081934 TEST=Verified that abuild is successful for all boards. Also, verified that static.c generated for eve, kahlee, scarlet, asrock imb_a180 is unchanged from before in node definitions. Change-Id: I255092f527c8eecb144385eb681df20e54caf8f5 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/26720 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-05-31 00:09:09 +02:00
}
static void walk_device_tree(FILE *fil, struct device *ptr,
void (*func)(FILE *, struct device *,
struct device *))
util/sconfig: Re-factor sconfig to not assume chip as device This change adds a new structure "struct chip" to identify elements of type chip rather than re-using the structure for device. Until now chip was treated as a device while generating the parse tree and then device tree postprocessing skipped over all the chip entries in children and sibling pointers of device nodes. With this change, the device tree will only contain struct device in the parsed tree. It helps by avoiding unnecessary pointers to chip structure as children or next_sibling and then skipping those elements in post processing. Every device can then hold a pointer to its chip. When generating static.c, chip structure is emitted before device structure to ensure that the device structure has chip within its scope. Externally, the only visible change in static.c should be the order in which chip/device elements are emitted i.e. previously all chips under a particular device were emitted to static.c and then the devices using those chips. Now, all chips are emitted before all the devices in static.c BUG=b:80081934 TEST=Verified that abuild is successful for all boards. Also, verified that static.c generated for eve, kahlee, scarlet, asrock imb_a180 is unchanged from before in node definitions. Change-Id: I255092f527c8eecb144385eb681df20e54caf8f5 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/26720 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-05-31 00:09:09 +02:00
{
struct queue_entry *bfs_q_head = NULL;
enqueue_tail(&bfs_q_head, ptr);
while ((ptr = dequeue_head(&bfs_q_head))) {
add_children_to_queue(&bfs_q_head, ptr);
func(fil, ptr, peek_queue_head(bfs_q_head));
}
util/sconfig: Re-factor sconfig to not assume chip as device This change adds a new structure "struct chip" to identify elements of type chip rather than re-using the structure for device. Until now chip was treated as a device while generating the parse tree and then device tree postprocessing skipped over all the chip entries in children and sibling pointers of device nodes. With this change, the device tree will only contain struct device in the parsed tree. It helps by avoiding unnecessary pointers to chip structure as children or next_sibling and then skipping those elements in post processing. Every device can then hold a pointer to its chip. When generating static.c, chip structure is emitted before device structure to ensure that the device structure has chip within its scope. Externally, the only visible change in static.c should be the order in which chip/device elements are emitted i.e. previously all chips under a particular device were emitted to static.c and then the devices using those chips. Now, all chips are emitted before all the devices in static.c BUG=b:80081934 TEST=Verified that abuild is successful for all boards. Also, verified that static.c generated for eve, kahlee, scarlet, asrock imb_a180 is unchanged from before in node definitions. Change-Id: I255092f527c8eecb144385eb681df20e54caf8f5 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/26720 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-05-31 00:09:09 +02:00
}
static void emit_chip_headers(FILE *fil, struct chip *chip)
{
struct chip *tmp = chip;
fprintf(fil, "#include <device/device.h>\n");
fprintf(fil, "#include <device/pci.h>\n");
while (chip) {
if (chip->chiph_exists)
fprintf(fil, "#include \"%s/chip.h\"\n", chip->name);
chip = chip->next;
}
fprintf(fil, "\n#if !DEVTREE_EARLY\n");
fprintf(fil,
"__attribute__((weak)) struct chip_operations mainboard_ops = {};\n");
chip = tmp;
while (chip) {
fprintf(fil,
"__attribute__((weak)) struct chip_operations %s_ops = {};\n",
chip->name_underscore);
chip = chip->next;
}
fprintf(fil, "#endif\n");
}
static void emit_chip_instance(FILE *fil, struct chip_instance *instance)
{
fprintf(fil, "DEVTREE_CONST struct %s_config %s_info_%d = {",
instance->chip->name_underscore,
instance->chip->name_underscore,
instance->id);
if (instance->reg) {
fprintf(fil, "\n");
struct reg *r = instance->reg;
while (r) {
fprintf(fil, "\t.%s = %s,\n", r->key, r->value);
r = r->next;
}
}
fprintf(fil, "};\n\n");
}
util/sconfig: Re-factor sconfig to not assume chip as device This change adds a new structure "struct chip" to identify elements of type chip rather than re-using the structure for device. Until now chip was treated as a device while generating the parse tree and then device tree postprocessing skipped over all the chip entries in children and sibling pointers of device nodes. With this change, the device tree will only contain struct device in the parsed tree. It helps by avoiding unnecessary pointers to chip structure as children or next_sibling and then skipping those elements in post processing. Every device can then hold a pointer to its chip. When generating static.c, chip structure is emitted before device structure to ensure that the device structure has chip within its scope. Externally, the only visible change in static.c should be the order in which chip/device elements are emitted i.e. previously all chips under a particular device were emitted to static.c and then the devices using those chips. Now, all chips are emitted before all the devices in static.c BUG=b:80081934 TEST=Verified that abuild is successful for all boards. Also, verified that static.c generated for eve, kahlee, scarlet, asrock imb_a180 is unchanged from before in node definitions. Change-Id: I255092f527c8eecb144385eb681df20e54caf8f5 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/26720 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-05-31 00:09:09 +02:00
static void emit_chips(FILE *fil)
{
struct chip *chip = chip_header.next;
struct chip_instance *instance;
util/sconfig: Re-factor sconfig to not assume chip as device This change adds a new structure "struct chip" to identify elements of type chip rather than re-using the structure for device. Until now chip was treated as a device while generating the parse tree and then device tree postprocessing skipped over all the chip entries in children and sibling pointers of device nodes. With this change, the device tree will only contain struct device in the parsed tree. It helps by avoiding unnecessary pointers to chip structure as children or next_sibling and then skipping those elements in post processing. Every device can then hold a pointer to its chip. When generating static.c, chip structure is emitted before device structure to ensure that the device structure has chip within its scope. Externally, the only visible change in static.c should be the order in which chip/device elements are emitted i.e. previously all chips under a particular device were emitted to static.c and then the devices using those chips. Now, all chips are emitted before all the devices in static.c BUG=b:80081934 TEST=Verified that abuild is successful for all boards. Also, verified that static.c generated for eve, kahlee, scarlet, asrock imb_a180 is unchanged from before in node definitions. Change-Id: I255092f527c8eecb144385eb681df20e54caf8f5 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/26720 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-05-31 00:09:09 +02:00
emit_chip_headers(fil, chip);
for (; chip; chip = chip->next) {
util/sconfig: Re-factor sconfig to not assume chip as device This change adds a new structure "struct chip" to identify elements of type chip rather than re-using the structure for device. Until now chip was treated as a device while generating the parse tree and then device tree postprocessing skipped over all the chip entries in children and sibling pointers of device nodes. With this change, the device tree will only contain struct device in the parsed tree. It helps by avoiding unnecessary pointers to chip structure as children or next_sibling and then skipping those elements in post processing. Every device can then hold a pointer to its chip. When generating static.c, chip structure is emitted before device structure to ensure that the device structure has chip within its scope. Externally, the only visible change in static.c should be the order in which chip/device elements are emitted i.e. previously all chips under a particular device were emitted to static.c and then the devices using those chips. Now, all chips are emitted before all the devices in static.c BUG=b:80081934 TEST=Verified that abuild is successful for all boards. Also, verified that static.c generated for eve, kahlee, scarlet, asrock imb_a180 is unchanged from before in node definitions. Change-Id: I255092f527c8eecb144385eb681df20e54caf8f5 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/26720 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-05-31 00:09:09 +02:00
if (!chip->chiph_exists)
continue;
instance = chip->instance;
while (instance) {
emit_chip_instance(fil, instance);
instance = instance->next;
}
}
}
static void inherit_subsystem_ids(FILE *file, struct device *dev,
struct device *next)
{
struct device *p;
if (dev->subsystem_vendor != -1 && dev->subsystem_device != -1) {
/* user already gave us a subsystem vendor/device */
return;
}
for (p = dev; p && p->parent->dev != p; p = p->parent->dev) {
if (p->bustype != PCI && p->bustype != DOMAIN)
continue;
if (p->inherit_subsystem) {
dev->subsystem_vendor = p->subsystem_vendor;
dev->subsystem_device = p->subsystem_device;
break;
}
}
}
static void usage(void)
{
printf("usage: sconfig devicetree_file output_file [override_devicetree_file]\n");
exit(1);
}
enum {
DEVICEFILE_ARG = 1,
OUTPUTFILE_ARG,
OVERRIDE_DEVICEFILE_ARG,
};
#define MANDATORY_ARG_COUNT 3
#define OPTIONAL_ARG_COUNT 1
#define TOTAL_ARG_COUNT (MANDATORY_ARG_COUNT + OPTIONAL_ARG_COUNT)
static void parse_devicetree(const char *file, struct bus *parent)
{
FILE *filec = fopen(file, "r");
if (!filec) {
perror(NULL);
exit(1);
}
yyrestart(filec);
root_parent = parent;
linenum = 0;
yyparse();
fclose(filec);
}
int main(int argc, char **argv)
{
if ((argc < MANDATORY_ARG_COUNT) || (argc > TOTAL_ARG_COUNT))
usage();
const char *base_devtree = argv[DEVICEFILE_ARG];
const char *outputc = argv[OUTPUTFILE_ARG];
const char *override_devtree;
parse_devicetree(base_devtree, &base_root_bus);
if (argc == TOTAL_ARG_COUNT) {
override_devtree = argv[OVERRIDE_DEVICEFILE_ARG];
parse_devicetree(override_devtree, &override_root_bus);
}
FILE *autogen = fopen(outputc, "w");
if (!autogen) {
fprintf(stderr, "Could not open file '%s' for writing: ",
outputc);
perror(NULL);
exit(1);
}
util/sconfig: Re-factor sconfig to not assume chip as device This change adds a new structure "struct chip" to identify elements of type chip rather than re-using the structure for device. Until now chip was treated as a device while generating the parse tree and then device tree postprocessing skipped over all the chip entries in children and sibling pointers of device nodes. With this change, the device tree will only contain struct device in the parsed tree. It helps by avoiding unnecessary pointers to chip structure as children or next_sibling and then skipping those elements in post processing. Every device can then hold a pointer to its chip. When generating static.c, chip structure is emitted before device structure to ensure that the device structure has chip within its scope. Externally, the only visible change in static.c should be the order in which chip/device elements are emitted i.e. previously all chips under a particular device were emitted to static.c and then the devices using those chips. Now, all chips are emitted before all the devices in static.c BUG=b:80081934 TEST=Verified that abuild is successful for all boards. Also, verified that static.c generated for eve, kahlee, scarlet, asrock imb_a180 is unchanged from before in node definitions. Change-Id: I255092f527c8eecb144385eb681df20e54caf8f5 Signed-off-by: Furquan Shaikh <furquan@google.com> Reviewed-on: https://review.coreboot.org/26720 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Aaron Durbin <adurbin@chromium.org>
2018-05-31 00:09:09 +02:00
emit_chips(autogen);
walk_device_tree(autogen, &base_root_dev, inherit_subsystem_ids);
fprintf(autogen, "\n/* pass 0 */\n");
walk_device_tree(autogen, &base_root_dev, pass0);
fprintf(autogen, "\n/* pass 1 */\n");
walk_device_tree(autogen, &base_root_dev, pass1);
fclose(autogen);
return 0;
}