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authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2015-08-05 17:04:01 -0300
commit57f0f512b273f60d52568b8c6b77e17f5636edc0 (patch)
tree5e910f0e82173f4ef4f51111366a3f1299037a7b /arch/xtensa/include/asm/pci.h
Initial import
Diffstat (limited to 'arch/xtensa/include/asm/pci.h')
-rw-r--r--arch/xtensa/include/asm/pci.h64
1 files changed, 64 insertions, 0 deletions
diff --git a/arch/xtensa/include/asm/pci.h b/arch/xtensa/include/asm/pci.h
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+++ b/arch/xtensa/include/asm/pci.h
@@ -0,0 +1,64 @@
+/*
+ * linux/include/asm-xtensa/pci.h
+ *
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License. See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2001 - 2005 Tensilica Inc.
+ */
+
+#ifndef _XTENSA_PCI_H
+#define _XTENSA_PCI_H
+
+#ifdef __KERNEL__
+
+/* Can be used to override the logic in pci_scan_bus for skipping
+ * already-configured bus numbers - to be used for buggy BIOSes
+ * or architectures with incomplete PCI setup by the loader
+ */
+
+#define pcibios_assign_all_busses() 0
+
+extern struct pci_controller* pcibios_alloc_controller(void);
+
+/* Assume some values. (We should revise them, if necessary) */
+
+#define PCIBIOS_MIN_IO 0x2000
+#define PCIBIOS_MIN_MEM 0x10000000
+
+/* Dynamic DMA mapping stuff.
+ * Xtensa has everything mapped statically like x86.
+ */
+
+#include <linux/types.h>
+#include <linux/slab.h>
+#include <asm/scatterlist.h>
+#include <linux/string.h>
+#include <asm/io.h>
+
+struct pci_dev;
+
+/* The PCI address space does equal the physical memory address space.
+ * The networking and block device layers use this boolean for bounce buffer
+ * decisions.
+ */
+
+#define PCI_DMA_BUS_IS_PHYS (1)
+
+/* Map a range of PCI memory or I/O space for a device into user space */
+int pci_mmap_page_range(struct pci_dev *pdev, struct vm_area_struct *vma,
+ enum pci_mmap_state mmap_state, int write_combine);
+
+/* Tell drivers/pci/proc.c that we have pci_mmap_page_range() */
+#define HAVE_PCI_MMAP 1
+
+#endif /* __KERNEL__ */
+
+/* Implement the pci_ DMA API in terms of the generic device dma_ one */
+#include <asm-generic/pci-dma-compat.h>
+
+/* Generic PCI */
+#include <asm-generic/pci.h>
+
+#endif /* _XTENSA_PCI_H */