Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 122 insertions, 0 deletions

diff --git a/include/asm-sparc64/sbus.h b/include/asm-sparc64/sbus.h
new file mode 100644
index 000000000000..48279e10f385
--- /dev/null
+++ b/include/asm-sparc64/sbus.h
@@ -0,0 +1,122 @@
+/* $Id: sbus.h,v 1.14 2000/02/18 13:50:55 davem Exp $
+ * sbus.h: Defines for the Sun SBus.
+ *
+ * Copyright (C) 1996, 1999 David S. Miller (davem@redhat.com)
+ */
+
+#ifndef _SPARC64_SBUS_H
+#define _SPARC64_SBUS_H
+
+#include <linux/dma-mapping.h>
+#include <linux/ioport.h>
+
+#include <asm/oplib.h>
+#include <asm/iommu.h>
+#include <asm/scatterlist.h>
+
+/* We scan which devices are on the SBus using the PROM node device
+ * tree.  SBus devices are described in two different ways.  You can
+ * either get an absolute address at which to access the device, or
+ * you can get a SBus 'slot' number and an offset within that slot.
+ */
+
+/* The base address at which to calculate device OBIO addresses. */
+#define SUN_SBUS_BVADDR        0x00000000
+#define SBUS_OFF_MASK          0x0fffffff
+
+/* These routines are used to calculate device address from slot
+ * numbers + offsets, and vice versa.
+ */
+
+static __inline__ unsigned long sbus_devaddr(int slotnum, unsigned long offset)
+{
+  return (unsigned long) (SUN_SBUS_BVADDR+((slotnum)<<28)+(offset));
+}
+
+static __inline__ int sbus_dev_slot(unsigned long dev_addr)
+{
+  return (int) (((dev_addr)-SUN_SBUS_BVADDR)>>28);
+}
+
+struct sbus_bus;
+
+/* Linux SBUS device tables */
+struct sbus_dev {
+        struct sbus_bus *bus;   /* Our toplevel parent SBUS     */
+        struct sbus_dev *next;  /* Chain of siblings            */
+        struct sbus_dev *child; /* Chain of children            */
+        struct sbus_dev *parent;/* Parent device if not toplevel*/
+        int prom_node;          /* OBP node of this device      */
+        char prom_name[64];     /* OBP device name property     */
+        int slot;               /* SBUS slot number             */
+
+        struct resource resource[PROMREG_MAX];
+
+        struct linux_prom_registers reg_addrs[PROMREG_MAX];
+        int num_registers, ranges_applied;
+
+        struct linux_prom_ranges device_ranges[PROMREG_MAX];
+        int num_device_ranges;
+
+        unsigned int irqs[4];
+        int num_irqs;
+};
+
+/* This struct describes the SBus(s) found on this machine. */
+struct sbus_bus {
+        void                    *iommu;         /* Opaque IOMMU cookie  */
+        struct sbus_dev         *devices;       /* Tree of SBUS devices */
+        struct sbus_bus         *next;          /* Next SBUS in system  */
+        int                     prom_node;      /* OBP node of SBUS     */
+        char                    prom_name[64];  /* Usually "sbus" or "sbi" */
+        int                     clock_freq;
+
+        struct linux_prom_ranges sbus_ranges[PROMREG_MAX];
+        int num_sbus_ranges;
+
+        int portid;
+        void *starfire_cookie;
+};
+
+extern struct sbus_bus *sbus_root;
+
+/* Device probing routines could find these handy */
+#define for_each_sbus(bus) \
+        for((bus) = sbus_root; (bus); (bus)=(bus)->next)
+
+#define for_each_sbusdev(device, bus) \
+        for((device) = (bus)->devices; (device); (device)=(device)->next)
+        
+#define for_all_sbusdev(device, bus) \
+        for ((bus) = sbus_root; (bus); (bus) = (bus)->next) \
+                for ((device) = (bus)->devices; (device); (device) = (device)->next)
+
+/* Driver DVMA interfaces. */
+#define sbus_can_dma_64bit(sdev)        (1)
+#define sbus_can_burst64(sdev)          (1)
+extern void sbus_set_sbus64(struct sbus_dev *, int);
+
+/* These yield IOMMU mappings in consistent mode. */
+extern void *sbus_alloc_consistent(struct sbus_dev *, size_t, dma_addr_t *dma_addrp);
+extern void sbus_free_consistent(struct sbus_dev *, size_t, void *, dma_addr_t);
+
+#define SBUS_DMA_BIDIRECTIONAL  DMA_BIDIRECTIONAL
+#define SBUS_DMA_TODEVICE       DMA_TO_DEVICE
+#define SBUS_DMA_FROMDEVICE     DMA_FROM_DEVICE
+#define SBUS_DMA_NONE           DMA_NONE
+
+/* All the rest use streaming mode mappings. */
+extern dma_addr_t sbus_map_single(struct sbus_dev *, void *, size_t, int);
+extern void sbus_unmap_single(struct sbus_dev *, dma_addr_t, size_t, int);
+extern int sbus_map_sg(struct sbus_dev *, struct scatterlist *, int, int);
+extern void sbus_unmap_sg(struct sbus_dev *, struct scatterlist *, int, int);
+
+/* Finally, allow explicit synchronization of streamable mappings. */
+extern void sbus_dma_sync_single_for_cpu(struct sbus_dev *, dma_addr_t, size_t, int);
+#define sbus_dma_sync_single sbus_dma_sync_single_for_cpu
+extern void sbus_dma_sync_single_for_device(struct sbus_dev *, dma_addr_t, size_t, int);
+extern void sbus_dma_sync_sg_for_cpu(struct sbus_dev *, struct scatterlist *, int, int);
+#define sbus_dma_sync_sg sbus_dma_sync_sg_for_cpu
+extern void sbus_dma_sync_sg_for_device(struct sbus_dev *, struct scatterlist *, int, int);
+
+#endif /* !(_SPARC64_SBUS_H) */