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Diffstat (limited to 'xorg-server/hw/xfree86/os-support/bsd/memrange.h')
-rw-r--r--xorg-server/hw/xfree86/os-support/bsd/memrange.h69
1 files changed, 69 insertions, 0 deletions
diff --git a/xorg-server/hw/xfree86/os-support/bsd/memrange.h b/xorg-server/hw/xfree86/os-support/bsd/memrange.h
new file mode 100644
index 000000000..03c479144
--- /dev/null
+++ b/xorg-server/hw/xfree86/os-support/bsd/memrange.h
@@ -0,0 +1,69 @@
+/*
+ * Memory range attribute operations, peformed on /dev/mem
+ */
+
+#ifdef HAVE_XORG_CONFIG_H
+#include <xorg-config.h>
+#endif
+
+#ifndef _MEMRANGE_H
+#define _MEMRANGE_H
+
+/* Memory range attributes */
+#define MDF_UNCACHEABLE (1<<0) /* region not cached */
+#define MDF_WRITECOMBINE (1<<1) /* region supports "write combine"
+ * action */
+#define MDF_WRITETHROUGH (1<<2) /* write-through cached */
+#define MDF_WRITEBACK (1<<3) /* write-back cached */
+#define MDF_WRITEPROTECT (1<<4) /* read-only region */
+#define MDF_ATTRMASK (0x00ffffff)
+
+#define MDF_FIXBASE (1<<24) /* fixed base */
+#define MDF_FIXLEN (1<<25) /* fixed length */
+#define MDF_FIRMWARE (1<<26) /* set by firmware (XXX not useful?) */
+#define MDF_ACTIVE (1<<27) /* currently active */
+#define MDF_BOGUS (1<<28) /* we don't like it */
+#define MDF_FIXACTIVE (1<<29) /* can't be turned off */
+#define MDF_BUSY (1<<30) /* range is in use */
+
+struct mem_range_desc {
+ u_int64_t mr_base;
+ u_int64_t mr_len;
+ int mr_flags;
+ char mr_owner[8];
+};
+
+struct mem_range_op {
+ struct mem_range_desc *mo_desc;
+ int mo_arg[2];
+#define MEMRANGE_SET_UPDATE 0
+#define MEMRANGE_SET_REMOVE 1
+ /* XXX want a flag that says "set and undo when I exit" */
+};
+#define MEMRANGE_GET _IOWR('m', 50, struct mem_range_op)
+#define MEMRANGE_SET _IOW('m', 51, struct mem_range_op)
+
+#ifdef _KERNEL
+
+struct mem_range_softc;
+struct mem_range_ops {
+ void (*init) __P((struct mem_range_softc * sc));
+ int (*set) __P((struct mem_range_softc * sc, struct mem_range_desc * mrd, int *arg));
+ void (*initAP) __P((struct mem_range_softc * sc));
+};
+
+struct mem_range_softc {
+ struct mem_range_ops *mr_op;
+ int mr_cap;
+ int mr_ndesc;
+ struct mem_range_desc *mr_desc;
+};
+
+extern struct mem_range_softc mem_range_softc;
+
+extern int mem_range_attr_get __P((struct mem_range_desc * mrd, int *arg));
+extern int mem_range_attr_set __P((struct mem_range_desc * mrd, int *arg));
+extern void mem_range_AP_init __P((void));
+#endif
+
+#endif