fs: use kmem_cache_zalloc instead
[pv_ops_mirror.git] / include / asm-xtensa / pci.h
blob66410acf18b439b239fddfd195d38610f2826ebd
1 /*
2 * linux/include/asm-xtensa/pci.h
4 * This file is subject to the terms and conditions of the GNU General Public
5 * License. See the file "COPYING" in the main directory of this archive
6 * for more details.
8 * Copyright (C) 2001 - 2005 Tensilica Inc.
9 */
11 #ifndef _XTENSA_PCI_H
12 #define _XTENSA_PCI_H
14 #ifdef __KERNEL__
16 /* Can be used to override the logic in pci_scan_bus for skipping
17 * already-configured bus numbers - to be used for buggy BIOSes
18 * or architectures with incomplete PCI setup by the loader
21 #define pcibios_assign_all_busses() 0
23 extern struct pci_controller* pcibios_alloc_controller(void);
25 static inline void pcibios_set_master(struct pci_dev *dev)
27 /* No special bus mastering setup handling */
30 static inline void pcibios_penalize_isa_irq(int irq)
32 /* We don't do dynamic PCI IRQ allocation */
35 /* Assume some values. (We should revise them, if necessary) */
37 #define PCIBIOS_MIN_IO 0x2000
38 #define PCIBIOS_MIN_MEM 0x10000000
40 /* Dynamic DMA mapping stuff.
41 * Xtensa has everything mapped statically like x86.
44 #include <linux/types.h>
45 #include <linux/slab.h>
46 #include <asm/scatterlist.h>
47 #include <linux/string.h>
48 #include <asm/io.h>
50 struct pci_dev;
52 /* The PCI address space does equal the physical memory address space.
53 * The networking and block device layers use this boolean for bounce buffer
54 * decisions.
57 #define PCI_DMA_BUS_IS_PHYS (1)
59 /* pci_unmap_{page,single} is a no-op, so */
60 #define DECLARE_PCI_UNMAP_ADDR(ADDR_NAME)
61 #define DECLARE_PCI_UNMAP_LEN(LEN_NAME)
62 #define pci_unmap_addr(PTR, ADDR_NAME) (0)
63 #define pci_unmap_addr_set(PTR, ADDR_NAME, VAL) do { } while (0)
64 #define pci_ubnmap_len(PTR, LEN_NAME) (0)
65 #define pci_unmap_len_set(PTR, LEN_NAME, VAL) do { } while (0)
67 /* Map a range of PCI memory or I/O space for a device into user space */
68 int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma,
69 enum pci_mmap_state mmap_state, int write_combine);
71 /* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */
72 #define HAVE_PCI_MMAP 1
74 #endif /* __KERNEL__ */
76 /* Implement the pci_ DMA API in terms of the generic device dma_ one */
77 #include <asm-generic/pci-dma-compat.h>
79 /* Generic PCI */
80 #include <asm-generic/pci.h>
82 #endif /* _XTENSA_PCI_H */