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Move the v3 resource allocator to v2.

Browse Source 
Major changes:
1. Separate resource allocation into:
	A. Read Resources
	B. Avoid fixed resources (constrain limits)
	C. Allocate resources
	D. Set resources

Usage notes:
Resources which have IORESOURCE_FIXED set in the flags constrain the placement
of other resources.  All fixed resources will end up outside (above or below) 
the allocated resources.

Domains usually start with base = 0 and limit = 2^address_bits - 1.

I've added an IOAPIC to all platforms so that the old limit of 0xfec00000 is
still there for resources.  Some platforms may want to change that, but I didn't
want to break anyone's board.

Resources are allocated in a single block for memory and another for I/O.
Currently the resource allocator doesn't support holes.

Signed-off-by: Myles Watson <mylesgw@gmail.com>
Acked-by: Ronald G. Minnich <rminnich@gmail.com>
Acked-by: Patrick Georgi <patrick.georgi@coresystems.de>


git-svn-id: svn://svn.coreboot.org/coreboot/trunk@4394 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
This commit is contained in:
Myles Watson
2009-07-02 18:56:24 +00:00
parent 2468331952
commit 29cc9eda20
62 changed files with 1508 additions and 1591 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
src/devices/cardbus_device.c
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@@ -77,8 +77,6 @@ static void cardbus_size_bridge_resource(device_t dev, unsigned index)
resource = find_resource(dev, index);
if (resource) {
min_size = resource->size;
compute_allocate_resource(&dev->link[0], resource,
resource->flags, resource->flags);
/* Allways allocate at least the miniumum size to a
* cardbus bridge in case a new card is plugged in.
*/

828
src/devices/device.c
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File diff suppressed because it is too large Load Diff

4
src/devices/device_util.c
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@@ -487,7 +487,7 @@ void search_bus_resources(struct bus *bus,
for(curdev = bus->children; curdev; curdev = curdev->sibling) {
int i;
/* Ignore disabled devices */
if (!curdev->have_resources) continue;
if (!curdev->enabled) continue;
for(i = 0; i < curdev->resources; i++) {
struct resource *resource = &curdev->resource[i];
/* If it isn't the right kind of resource ignore it */
@@ -514,7 +514,7 @@ void search_global_resources(
for(curdev = all_devices; curdev; curdev = curdev->next) {
int i;
/* Ignore disabled devices */
if (!curdev->have_resources) continue;
if (!curdev->enabled) continue;
for(i = 0; i < curdev->resources; i++) {
struct resource *resource = &curdev->resource[i];
/* If it isn't the right kind of resource ignore it */

834
src/devices/pci_device.c
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File diff suppressed because it is too large Load Diff

33
src/devices/root_device.c
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@@ -34,29 +34,7 @@
*/
void root_dev_read_resources(device_t root)
{
struct resource *resource;
/* Initialize the system wide io space constraints */
resource = new_resource(root, 0);
resource->base = 0x400;
resource->size = 0;
resource->align = 0;
resource->gran = 0;
resource->limit = 0xffffUL;
resource->flags = IORESOURCE_IO;
compute_allocate_resource(&root->link[0], resource,
IORESOURCE_IO, IORESOURCE_IO);
/* Initialize the system wide memory resources constraints */
resource = new_resource(root, 1);
resource->base = 0;
resource->size = 0;
resource->align = 0;
resource->gran = 0;
resource->limit = 0xffffffffUL;
resource->flags = IORESOURCE_MEM;
compute_allocate_resource(&root->link[0], resource,
IORESOURCE_MEM, IORESOURCE_MEM);
printk_err("%s should never be called.\n", __func__);
}
/**
@@ -68,14 +46,7 @@ void root_dev_read_resources(device_t root)
*/
void root_dev_set_resources(device_t root)
{
struct bus *bus;
bus = &root->link[0];
compute_allocate_resource(bus,
&root->resource[0], IORESOURCE_IO, IORESOURCE_IO);
compute_allocate_resource(bus,
&root->resource[1], IORESOURCE_MEM, IORESOURCE_MEM);
assign_resources(bus);
printk_err("%s should never be called.\n", __func__);
}
/**