diff options
author | Myles Watson <mylesgw@gmail.com> | 2009-07-02 18:56:24 +0000 |
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committer | Myles Watson <mylesgw@gmail.com> | 2009-07-02 18:56:24 +0000 |
commit | 29cc9eda2021a87396ef31a6fc81daff6fd1be7a (patch) | |
tree | d3dfa07ca85547c77c5d07825fc8afcc19489076 /src/northbridge/intel/i3100/northbridge.c | |
parent | 2468331952bae0abdc4d76dbe6cf26f05b7825e5 (diff) |
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/intel/i3100/northbridge.c')
-rw-r--r-- | src/northbridge/intel/i3100/northbridge.c | 35 |
1 files changed, 4 insertions, 31 deletions
diff --git a/src/northbridge/intel/i3100/northbridge.c b/src/northbridge/intel/i3100/northbridge.c index 205e47db50..c96dcee8ba 100644 --- a/src/northbridge/intel/i3100/northbridge.c +++ b/src/northbridge/intel/i3100/northbridge.c @@ -49,30 +49,6 @@ static void ram_resource(device_t dev, u32 index, IORESOURCE_FIXED | IORESOURCE_STORED | IORESOURCE_ASSIGNED; } - -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->size = 0; - resource->align = 0; - resource->gran = 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 = 0; - resource->size = 0; - resource->align = 0; - resource->gran = 0; - resource->limit = 0xffffffffUL; - resource->flags = IORESOURCE_MEM | IORESOURCE_SUBTRACTIVE | IORESOURCE_ASSIGNED; -} - static void tolm_test(void *gp, struct device *dev, struct resource *new) { struct resource **best_p = gp; @@ -199,13 +175,10 @@ static void pci_domain_set_resources(device_t dev) assign_resources(&dev->link[0]); } -static u32 pci_domain_scan_bus(device_t dev, u32 max) +static u32 i3100_domain_scan_bus(device_t dev, u32 max) { - max = pci_scan_bus(&dev->link[0], 0, 0xff, max); - if (max > max_bus) { - max_bus = max; - } - return max; + max_bus = pci_domain_scan_bus(dev, max); + return max_bus; } static struct device_operations pci_domain_ops = { @@ -213,7 +186,7 @@ static struct device_operations pci_domain_ops = { .set_resources = pci_domain_set_resources, .enable_resources = enable_childrens_resources, .init = 0, - .scan_bus = pci_domain_scan_bus, + .scan_bus = i3100_domain_scan_bus, .ops_pci_bus = &pci_cf8_conf1, /* Do we want to use the memory mapped space here? */ }; |