diff options
| author | Myles Watson <mylesgw@gmail.com> | 2009-07-02 18:56:24 +0000 |
|---|---|---|
| committer | Myles Watson <mylesgw@gmail.com> | 2009-07-02 18:56:24 +0000 |
| commit | 29cc9eda2021a87396ef31a6fc81daff6fd1be7a (patch) | |
| tree | d3dfa07ca85547c77c5d07825fc8afcc19489076 /src/include/device/device.h | |
| 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/include/device/device.h')
| -rw-r--r-- | src/include/device/device.h | 9 |
1 files changed, 4 insertions, 5 deletions
diff --git a/src/include/device/device.h b/src/include/device/device.h index 22d6c71829..1990454d6a 100644 --- a/src/include/device/device.h +++ b/src/include/device/device.h @@ -69,17 +69,16 @@ struct device { unsigned int hdr_type; /* PCI header type */ unsigned int enabled : 1; /* set if we should enable the device */ unsigned int initialized : 1; /* set if we have initialized the device */ - unsigned int have_resources : 1; /* Set if we have read the devices resources */ unsigned int on_mainboard : 1; unsigned long rom_address; - uint8_t command; + u8 command; /* Base registers for this device. I/O, MEM and Expansion ROM */ struct resource resource[MAX_RESOURCES]; unsigned int resources; - /* link are (down stream) buses attached to the device, usually a leaf + /* links are (downstream) buses attached to the device, usually a leaf * device with no children have 0 buses attached and a bridge has 1 bus */ struct bus link[MAX_LINKS]; @@ -106,8 +105,6 @@ void dev_optimize(void); /* Generic device helper functions */ int reset_bus(struct bus *bus); unsigned int scan_bus(struct device *bus, unsigned int max); -void compute_allocate_resource(struct bus *bus, struct resource *bridge, - unsigned long type_mask, unsigned long type); void assign_resources(struct bus *bus); void enable_resources(struct device *dev); void enumerate_static_device(void); @@ -142,6 +139,8 @@ void show_all_devs_resources(int debug_level, const char* msg); #define DEVICE_MEM_ALIGN 4096 extern struct device_operations default_dev_ops_root; +void pci_domain_read_resources(struct device *dev); +unsigned int pci_domain_scan_bus(struct device *dev, unsigned int max); void root_dev_read_resources(device_t dev); void root_dev_set_resources(device_t dev); unsigned int scan_static_bus(device_t bus, unsigned int max); |