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0fb2a8f081
phases. One benefit of this is that it makes the call chain easier to follow. device/device.c: Remove references to have_resources. Remove read_resources from compute allocate resources. Split compute_allocate_resources into two 1. compute_resource_needs A. Traverse the tree depth first B. Sum resources C. Adjust limits and bases D. Update bridge resources sizes 2. assign_resource_values A. Traverse the tree breadth first B. Assign resource values device/device_util.c: Remove references to have_resources. device/pci_device.c: Remove saved values stubs (they're not needed now.) 1. Sizing function restores values Fix 64-bit flag masking. Add an error message for an invalid value. Update pci_record_bridge_resource: 1. remove compute_allocate_resource call 2. remove pci_set_resource call Update pci_bus_read_resources to read children's too. Update pci_set_resource: 1. change logic for setting zero-size resources A. Set range to [limit->limit-2^gran] (Could have been any range with base > limit) 2. remove compute_allocate_resource calls 3. Change phase4_assign_resources ->phase4_set_resources device/pci_ops.c: Change an error message to be more helpful. device/root_device.c: Remove code for read_resources and set resources. Add a .id to the ops. include/device/device.h: Remove have_resources. Comment out assign_resources. I think we could comment out more here. Add debugging function prototypes. Change phase4_assign_resources to phase4_set_resources. include/device/resource.h Add a IORESOURCE_BRIDGE flag. device/cardbus_device.c Remove compute_allocate_resource call. Use probe_resource (doesn't die) instead of find_resource. Signed-off-by: Myles Watson <mylesgw@gmail.com> Acked-by: Ronald G. Minnich <rminnich@gmail.com> git-svn-id: svn://coreboot.org/repository/coreboot-v3@1089 f3766cd6-281f-0410-b1cd-43a5c92072e9
122 lines
4.8 KiB
C
122 lines
4.8 KiB
C
/*
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef DEVICE_RESOURCE_H
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#define DEVICE_RESOURCE_H
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#include <types.h>
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#define IORESOURCE_BITS 0x000000ff /* Bus-specific bits */
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#define IORESOURCE_IO 0x00000100 /* Resource type */
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#define IORESOURCE_MEM 0x00000200
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#define IORESOURCE_IRQ 0x00000400
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#define IORESOURCE_DRQ 0x00000800
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#define IORESOURCE_PREFETCH 0x00001000 /* No side effects */
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#define IORESOURCE_READONLY 0x00002000
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#define IORESOURCE_CACHEABLE 0x00004000
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#define IORESOURCE_RANGELENGTH 0x00008000
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#define IORESOURCE_SHADOWABLE 0x00010000
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#define IORESOURCE_BUS_HAS_VGA 0x00020000
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#define IORESOURCE_SUBTRACTIVE 0x00040000 /* This resource filters all of the unclaimed transactions
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* to the bus below.
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*/
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#define IORESOURCE_BRIDGE 0x00080000 /* The IO resource has a bus below it. */
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#define IORESOURCE_STORED 0x20000000 /* The IO resource assignment has been stored in the device */
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#define IORESOURCE_ASSIGNED 0x40000000 /* An IO resource that has been assigned a value */
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#define IORESOURCE_FIXED 0x80000000 /* An IO resource the allocator must not change */
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/* PCI specific resource bits */
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#define IORESOURCE_PCI64 (1<<0) /* 64bit long pci resource */
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#define IORESOURCE_PCI_BRIDGE (1<<1) /* A bridge pci resource */
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/* ISA PnP IRQ specific bits (IORESOURCE_BITS) */
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#define IORESOURCE_IRQ_HIGHEDGE (1<<0)
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#define IORESOURCE_IRQ_LOWEDGE (1<<1)
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#define IORESOURCE_IRQ_HIGHLEVEL (1<<2)
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#define IORESOURCE_IRQ_LOWLEVEL (1<<3)
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/* ISA PnP DMA specific bits (IORESOURCE_BITS) */
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#define IORESOURCE_DMA_TYPE_MASK (3<<0)
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#define IORESOURCE_DMA_8BIT (0<<0)
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#define IORESOURCE_DMA_8AND16BIT (1<<0)
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#define IORESOURCE_DMA_16BIT (2<<0)
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#define IORESOURCE_DMA_MASTER (1<<2)
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#define IORESOURCE_DMA_BYTE (1<<3)
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#define IORESOURCE_DMA_WORD (1<<4)
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#define IORESOURCE_DMA_SPEED_MASK (3<<6)
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#define IORESOURCE_DMA_COMPATIBLE (0<<6)
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#define IORESOURCE_DMA_TYPEA (1<<6)
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#define IORESOURCE_DMA_TYPEB (2<<6)
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#define IORESOURCE_DMA_TYPEF (3<<6)
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/* ISA PnP memory I/O specific bits (IORESOURCE_BITS) */
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#define IORESOURCE_MEM_WRITEABLE (1<<0) /* dup: IORESOURCE_READONLY */
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#define IORESOURCE_MEM_CACHEABLE (1<<1) /* dup: IORESOURCE_CACHEABLE */
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#define IORESOURCE_MEM_RANGELENGTH (1<<2) /* dup: IORESOURCE_RANGELENGTH */
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#define IORESOURCE_MEM_TYPE_MASK (3<<3)
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#define IORESOURCE_MEM_8BIT (0<<3)
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#define IORESOURCE_MEM_16BIT (1<<3)
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#define IORESOURCE_MEM_8AND16BIT (2<<3)
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#define IORESOURCE_MEM_SHADOWABLE (1<<5) /* dup: IORESOURCE_SHADOWABLE */
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#define IORESOURCE_MEM_EXPANSIONROM (1<<6)
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typedef u64 resource_t;
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struct resource {
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resource_t base; /* Base address of the resource */
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resource_t size; /* Size of the resource */
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resource_t limit; /* Largest valid value base + size -1 */
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unsigned long flags; /* Descriptions of the kind of resource */
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unsigned long index; /* Bus specific per device resource id */
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unsigned char align; /* Required alignment (log 2) of the resource */
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unsigned char gran; /* Granularity (log 2) of the resource */
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/* Alignment must be >= the granularity of the resource */
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};
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/* Macros to generate index values for subtractive resources */
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#define IOINDEX_SUBTRACTIVE(IDX,LINK) (0x10000000 + ((IDX) << 8) + LINK)
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#define IOINDEX_SUBTRACTIVE_LINK(IDX) (IDX & 0xff)
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/* Generic resource helper functions */
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struct device;
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struct bus;
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extern void compact_resources(struct device * dev);
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extern struct resource *probe_resource(struct device *dev, unsigned index);
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extern struct resource *new_resource(struct device * dev, unsigned index);
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extern struct resource *find_resource(struct device * dev, unsigned index);
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extern resource_t resource_end(struct resource *resource);
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extern resource_t resource_max(struct resource *resource);
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extern void report_resource_stored(struct device * dev, struct resource *resource, const char *comment);
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typedef void (*resource_search_t)(void *gp, struct device *dev, struct resource *res);
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extern void search_bus_resources(struct bus *bus,
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unsigned long type_mask, unsigned long type,
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resource_search_t search, void *gp);
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extern void search_global_resources(
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unsigned long type_mask, unsigned long type,
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resource_search_t search, void *gp);
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#define RESOURCE_TYPE_MAX 20
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extern const char *resource_type(struct resource *resource);
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#endif /* DEVICE_RESOURCE_H */
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