sravan/system76-coreboot
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

Use lists instead of arrays for resources in devices to reduce memory usage.

Browse Source 
Signed-off-by: Myles Watson <mylesgw@gmail.com>
Acked-by: Patrick Georgi <patrick.georgi@coresystems.de>


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5576 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Myles Watson
2010-05-21 14:33:48 +00:00
parent c5b87c8f89
commit c25cc11ae3
25 changed files with 200 additions and 190 deletions
Download Patch File Download Diff File Expand all files Collapse all files

34
src/devices/device.c
View File

@@ -43,6 +43,8 @@
struct device *all_devices = &dev_root;
/** Pointer to the last device */
extern struct device **last_dev_p;
/** Linked list of free resources */
struct resource *free_resources = NULL;
/**
@@ -253,16 +255,15 @@ static void compute_resources(struct bus *bus, struct resource *bridge,
/* For each child which is a bridge, compute_resource_needs. */
for (dev = bus->children; dev; dev = dev->sibling) {
unsigned i;
struct resource *child_bridge;
if (!dev->links)
continue;
/* Find the resources with matching type flags. */
for (i = 0; i < dev->resources; i++) {
for (child_bridge = dev->resource_list; child_bridge;
child_bridge = child_bridge->next) {
unsigned link;
child_bridge = &dev->resource[i];
if (!(child_bridge->flags & IORESOURCE_BRIDGE) ||
(child_bridge->flags & type_mask) != type)
@@ -502,16 +503,15 @@ static void allocate_resources(struct bus *bus, struct resource *bridge,
/* For each child which is a bridge, allocate_resources. */
for (dev = bus->children; dev; dev = dev->sibling) {
unsigned i;
struct resource *child_bridge;
if (!dev->links)
continue;
/* Find the resources with matching type flags. */
for (i = 0; i < dev->resources; i++) {
for (child_bridge = dev->resource_list; child_bridge;
child_bridge = child_bridge->next) {
unsigned link;
child_bridge = &dev->resource[i];
if (!(child_bridge->flags & IORESOURCE_BRIDGE) ||
(child_bridge->flags & type_mask) != type)
@@ -556,8 +556,7 @@ static void constrain_resources(struct device *dev, struct constraints* limits)
printk(BIOS_SPEW, "%s: %s\n", __func__, dev_path(dev));
/* Constrain limits based on the fixed resources of this device. */
for (i = 0; i < dev->resources; i++) {
res = &dev->resource[i];
for (res = dev->resource_list; res; res = res->next) {
if (!(res->flags & IORESOURCE_FIXED))
continue;
if (!res->size) {
@@ -604,7 +603,6 @@ static void avoid_fixed_resources(struct device *dev)
{
struct constraints limits;
struct resource *res;
int i;
printk(BIOS_SPEW, "%s: %s\n", __func__, dev_path(dev));
/* Initialize constraints to maximum size. */
@@ -617,8 +615,7 @@ static void avoid_fixed_resources(struct device *dev)
limits.mem.limit = 0xffffffffffffffffULL;
/* Constrain the limits to dev's initial resources. */
for (i = 0; i < dev->resources; i++) {
res = &dev->resource[i];
for (res = dev->resource_list; res; res = res->next) {
if ((res->flags & IORESOURCE_FIXED))
continue;
printk(BIOS_SPEW, "%s:@%s %02lx limit %08Lx\n", __func__,
@@ -638,9 +635,8 @@ static void avoid_fixed_resources(struct device *dev)
constrain_resources(dev, &limits);
/* Update dev's resources with new limits. */
for (i = 0; i < dev->resources; i++) {
for (res = dev->resource_list; res; res = res->next) {
struct resource *lim;
res = &dev->resource[i];
if ((res->flags & IORESOURCE_FIXED))
continue;
@@ -764,7 +760,7 @@ void assign_resources(struct bus *bus)
dev_path(bus->dev), bus->secondary, bus->link);
for (curdev = bus->children; curdev; curdev = curdev->sibling) {
if (!curdev->enabled || !curdev->resources) {
if (!curdev->enabled || !curdev->resource_list) {
continue;
}
if (!curdev->ops || !curdev->ops->set_resources) {
@@ -927,7 +923,6 @@ void dev_configure(void)
struct resource *res;
struct device *root;
struct device *child;
int i;
#if CONFIG_VGA_BRIDGE_SETUP == 1
set_vga_bridge_bits();
@@ -954,8 +949,7 @@ void dev_configure(void)
for (child = root->link[0].children; child; child = child->sibling) {
if (!(child->path.type == DEVICE_PATH_PCI_DOMAIN))
continue;
for (i = 0; i < child->resources; i++) {
res = &child->resource[i];
for (res = child->resource_list; res; res = res->next) {
if (res->flags & IORESOURCE_FIXED)
continue;
if (res->flags & IORESOURCE_PREFETCH) {
@@ -987,8 +981,7 @@ void dev_configure(void)
for (child = root->link[0].children; child; child = child->sibling) {
if (child->path.type != DEVICE_PATH_PCI_DOMAIN)
continue;
for (i = 0; i < child->resources; i++) {
res = &child->resource[i];
for (res = child->resource_list; res; res = res->next) {
if (!(res->flags & IORESOURCE_MEM) ||
res->flags & IORESOURCE_FIXED)
continue;
@@ -1001,8 +994,7 @@ void dev_configure(void)
for (child = root->link[0].children; child; child = child->sibling) {
if (!(child->path.type == DEVICE_PATH_PCI_DOMAIN))
continue;
for (i = 0; i < child->resources; i++) {
res = &child->resource[i];
for (res = child->resource_list; res; res = res->next) {
if (res->flags & IORESOURCE_FIXED)
continue;
if (res->flags & IORESOURCE_PREFETCH) {