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authorMyles Watson <mylesgw@gmail.com>2009-07-02 18:56:24 +0000
committerMyles Watson <mylesgw@gmail.com>2009-07-02 18:56:24 +0000
commit29cc9eda2021a87396ef31a6fc81daff6fd1be7a (patch)
treed3dfa07ca85547c77c5d07825fc8afcc19489076 /src/northbridge/ibm
parent2468331952bae0abdc4d76dbe6cf26f05b7825e5 (diff)
downloadcoreboot-29cc9eda2021a87396ef31a6fc81daff6fd1be7a.tar.xz
Move the v3 resource allocator to v2.
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
Diffstat (limited to 'src/northbridge/ibm')
-rw-r--r--src/northbridge/ibm/cpc710/cpc710_northbridge.c24
-rw-r--r--src/northbridge/ibm/cpc925/cpc925_northbridge.c24
2 files changed, 0 insertions, 48 deletions
diff --git a/src/northbridge/ibm/cpc710/cpc710_northbridge.c b/src/northbridge/ibm/cpc710/cpc710_northbridge.c
index d5f0cf30e8..889080f4d3 100644
--- a/src/northbridge/ibm/cpc710/cpc710_northbridge.c
+++ b/src/northbridge/ibm/cpc710/cpc710_northbridge.c
@@ -9,23 +9,6 @@
#include <cpu/cpu.h>
#include "chip.h"
-static void pci_domain_read_resources(device_t dev)
-{
- struct resource *resource;
-
- /* Initialize the system wide io space constraints */
- resource = new_resource(dev, IOINDEX_SUBTRACTIVE(0, 0));
- resource->base = 0;
- resource->limit = 0xffffUL;
- resource->flags = IORESOURCE_IO | IORESOURCE_SUBTRACTIVE | IORESOURCE_ASSIGNED;
-
- /* Initialize the system wide memory resources constraints */
- resource = new_resource(dev, IOINDEX_SUBTRACTIVE(1, 0));
- resource->base = 0x80000000ULL;
- resource->limit = 0xfeffffffULL; /* We can put pci resources in the system controll area */
- resource->flags = IORESOURCE_MEM | IORESOURCE_SUBTRACTIVE | IORESOURCE_ASSIGNED;
-}
-
static void ram_resource(device_t dev, unsigned long index,
unsigned long basek, unsigned long sizek)
{
@@ -53,13 +36,6 @@ static void pci_domain_set_resources(device_t dev)
assign_resources(&dev->link[0]);
}
-
-static unsigned int pci_domain_scan_bus(device_t dev, unsigned int max)
-{
- max = pci_scan_bus(&dev->link[0], PCI_DEVFN(0, 0), 0xff, max);
- return max;
-}
-
static struct device_operations pci_domain_ops = {
.read_resources = pci_domain_read_resources,
.set_resources = pci_domain_set_resources,
diff --git a/src/northbridge/ibm/cpc925/cpc925_northbridge.c b/src/northbridge/ibm/cpc925/cpc925_northbridge.c
index f8e6a0a81f..6c5533d7b2 100644
--- a/src/northbridge/ibm/cpc925/cpc925_northbridge.c
+++ b/src/northbridge/ibm/cpc925/cpc925_northbridge.c
@@ -9,23 +9,6 @@
#include <cpu/cpu.h>
#include "chip.h"
-static void pci_domain_read_resources(device_t dev)
-{
- struct resource *resource;
-
- /* Initialize the system wide io space constraints */
- resource = new_resource(dev, IOINDEX_SUBTRACTIVE(0, 0));
- resource->base = 0;
- resource->limit = 0xffffUL;
- resource->flags = IORESOURCE_IO | IORESOURCE_SUBTRACTIVE | IORESOURCE_ASSIGNED;
-
- /* Initialize the system wide memory resources constraints */
- resource = new_resource(dev, IOINDEX_SUBTRACTIVE(1, 0));
- resource->base = 0x80000000ULL;
- resource->limit = 0xfeffffffULL; /* We can put pci resources in the system controll area */
- resource->flags = IORESOURCE_MEM | IORESOURCE_SUBTRACTIVE | IORESOURCE_ASSIGNED;
-}
-
static void ram_resource(device_t dev, unsigned long index,
unsigned long basek, unsigned long sizek)
{
@@ -53,13 +36,6 @@ static void pci_domain_set_resources(device_t dev)
assign_resources(&dev->link[0]);
}
-
-static unsigned int pci_domain_scan_bus(device_t dev, unsigned int max)
-{
- max = pci_scan_bus(&dev->link[0], PCI_DEVFN(0, 0), 0xff, max);
- return max;
-}
-
static struct device_operations pci_domain_ops = {
.read_resources = pci_domain_read_resources,
.set_resources = pci_domain_set_resources,