ia64/linux-2.6.18-xen.hg

view include/asm-i386/pci.h @ 452:c7ed6fe5dca0

kexec: dont initialise regions in reserve_memory()

There is no need to initialise efi_memmap_res and boot_param_res in
reserve_memory() for the initial xen domain as it is done in
machine_kexec_setup_resources() using values from the kexec hypercall.

Signed-off-by: Simon Horman <horms@verge.net.au>
author Keir Fraser <keir.fraser@citrix.com>
date Thu Feb 28 10:55:18 2008 +0000 (2008-02-28)
parents 831230e53067
children
line source
1 #ifndef __i386_PCI_H
2 #define __i386_PCI_H
5 #ifdef __KERNEL__
6 #include <linux/mm.h> /* for struct page */
8 /* Can be used to override the logic in pci_scan_bus for skipping
9 already-configured bus numbers - to be used for buggy BIOSes
10 or architectures with incomplete PCI setup by the loader */
12 #ifdef CONFIG_PCI
13 extern unsigned int pcibios_assign_all_busses(void);
14 #else
15 #define pcibios_assign_all_busses() 0
16 #endif
17 #define pcibios_scan_all_fns(a, b) 0
19 extern unsigned long pci_mem_start;
20 #define PCIBIOS_MIN_IO 0x1000
21 #define PCIBIOS_MIN_MEM (pci_mem_start)
23 #define PCIBIOS_MIN_CARDBUS_IO 0x4000
25 void pcibios_config_init(void);
26 struct pci_bus * pcibios_scan_root(int bus);
28 void pcibios_set_master(struct pci_dev *dev);
29 void pcibios_penalize_isa_irq(int irq, int active);
30 struct irq_routing_table *pcibios_get_irq_routing_table(void);
31 int pcibios_set_irq_routing(struct pci_dev *dev, int pin, int irq);
33 /* Dynamic DMA mapping stuff.
34 * i386 has everything mapped statically.
35 */
37 #include <linux/types.h>
38 #include <linux/slab.h>
39 #include <asm/scatterlist.h>
40 #include <linux/string.h>
41 #include <asm/io.h>
43 struct pci_dev;
45 /* The PCI address space does equal the physical memory
46 * address space. The networking and block device layers use
47 * this boolean for bounce buffer decisions.
48 */
49 #define PCI_DMA_BUS_IS_PHYS (1)
51 /* pci_unmap_{page,single} is a nop so... */
52 #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)
53 #define DECLARE_PCI_UNMAP_LEN(LEN_NAME)
54 #define pci_unmap_addr(PTR, ADDR_NAME) (0)
55 #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0)
56 #define pci_unmap_len(PTR, LEN_NAME) (0)
57 #define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0)
59 /* This is always fine. */
60 #define pci_dac_dma_supported(pci_dev, mask) (1)
62 static inline dma64_addr_t
63 pci_dac_page_to_dma(struct pci_dev *pdev, struct page *page, unsigned long offset, int direction)
64 {
65 return ((dma64_addr_t) page_to_phys(page) +
66 (dma64_addr_t) offset);
67 }
69 static inline struct page *
70 pci_dac_dma_to_page(struct pci_dev *pdev, dma64_addr_t dma_addr)
71 {
72 return pfn_to_page(dma_addr >> PAGE_SHIFT);
73 }
75 static inline unsigned long
76 pci_dac_dma_to_offset(struct pci_dev *pdev, dma64_addr_t dma_addr)
77 {
78 return (dma_addr & ~PAGE_MASK);
79 }
81 static inline void
82 pci_dac_dma_sync_single_for_cpu(struct pci_dev *pdev, dma64_addr_t dma_addr, size_t len, int direction)
83 {
84 }
86 static inline void
87 pci_dac_dma_sync_single_for_device(struct pci_dev *pdev, dma64_addr_t dma_addr, size_t len, int direction)
88 {
89 flush_write_buffers();
90 }
92 #define HAVE_PCI_MMAP
93 extern int pci_mmap_page_range(struct pci_dev *dev, struct vm_area_struct *vma,
94 enum pci_mmap_state mmap_state, int write_combine);
97 static inline void pcibios_add_platform_entries(struct pci_dev *dev)
98 {
99 }
101 #ifdef CONFIG_PCI
102 static inline void pci_dma_burst_advice(struct pci_dev *pdev,
103 enum pci_dma_burst_strategy *strat,
104 unsigned long *strategy_parameter)
105 {
106 *strat = PCI_DMA_BURST_INFINITY;
107 *strategy_parameter = ~0UL;
108 }
109 #endif
111 #endif /* __KERNEL__ */
113 /* implement the pci_ DMA API in terms of the generic device dma_ one */
114 #include <asm-generic/pci-dma-compat.h>
116 /* generic pci stuff */
117 #include <asm-generic/pci.h>
119 #endif /* __i386_PCI_H */