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- Finish interrupted merge 

git-svn-id: svn://svn.coreboot.org/coreboot/trunk@1673 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Eric Biederman 2004-10-14 22:52:15 +00:00
parent e5ac2959bb
commit 448bd635c0
1 changed files with 30 additions and 28 deletions
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58
src/devices/device.c
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@ -49,6 +49,7 @@ static struct device **last_dev_p = &dev_root.next;
*
* @see device_path
*/
static spinlock_t dev_lock = SPIN_LOCK_UNLOCKED;
device_t alloc_dev(struct bus *parent, struct device_path *path)
{
device_t dev, child;
@ -100,26 +101,15 @@ device_t alloc_dev(struct bus *parent, struct device_path *path)
* @param roundup Alignment as a power of two
* @returns rounded up number
*/
static unsigned long round(unsigned long val, unsigned long roundup)
static resource_t round(resource_t val, unsigned long pow)
{
/* ROUNDUP MUST BE A POWER OF TWO. */
unsigned long inverse;
inverse = ~(roundup - 1);
val += (roundup - 1);
val &= inverse;
resource_t mask;
mask = (1ULL << pow) - 1ULL;
val += mask;
val &= ~mask;
return val;
}
static unsigned long round_down(unsigned long val, unsigned long round_down)
{
/* ROUND_DOWN MUST BE A POWER OF TWO. */
unsigned long inverse;
inverse = ~(round_down - 1);
val &= inverse;
return val;
}
/** Read the resources on all devices of a given bus.
* @param bus bus to read the resources on.
*/
@ -127,11 +117,17 @@ static void read_resources(struct bus *bus)
{
struct device *curdev;
printk_spew("%s read_resources bus %d link: %d\n",
dev_path(bus->dev), bus->secondary, bus->link);
/* Walk through all of the devices and find which resources they need. */
for(curdev = bus->children; curdev; curdev = curdev->sibling) {
unsigned links;
int i;
if (curdev->resources > 0) {
if (curdev->have_resources) {
continue;
}
if (!curdev->enabled) {
continue;
}
if (!curdev->ops || !curdev->ops->read_resources) {
@ -139,24 +135,31 @@ static void read_resources(struct bus *bus)
dev_path(curdev));
continue;
}
if (!curdev->enabled) {
continue;
}
curdev->ops->read_resources(curdev);
curdev->have_resources = 1;
/* Read in subtractive resources behind the current device */
links = 0;
for(i = 0; i < curdev->resources; i++) {
struct resource *resource;
unsigned link;
resource = &curdev->resource[i];
if ((resource->flags & IORESOURCE_SUBTRACTIVE) &&
(!(links & (1 << resource->index))))
{
links |= (1 << resource->index);
if (!(resource->flags & IORESOURCE_SUBTRACTIVE))
continue;
link = IOINDEX_SUBTRACTIVE_LINK(resource->index);
if (link > MAX_LINKS) {
printk_err("%s subtractive index on link: %d\n",
dev_path(curdev), link);
continue;
}
if (!(links & (1 << link))) {
links |= (1 << link);
read_resources(&curdev->link[resource->index]);
}
}
}
printk_spew("%s read_resources bus %d link: %d done\n",
dev_path(bus->dev), bus->secondary, bus->link);
}
struct pick_largest_state {
@ -219,10 +222,8 @@ static void find_largest_resource(struct pick_largest_state *state,
}
}
static struct device *largest_resource(struct bus *bus,
struct resource **result_res,
unsigned long type_mask,
unsigned long type)
static struct device *largest_resource(struct bus *bus, struct resource **result_res,
unsigned long type_mask, unsigned long type)
{
struct pick_largest_state state;
@ -608,3 +609,4 @@ void dev_initialize(void)
}
printk_info("Devices initialized\n");
}