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authorIan Moffett <ian@osmora.org>2024-07-11 01:27:40 -0400
committerIan Moffett <ian@osmora.org>2024-07-11 01:27:40 -0400
commit1d258c4bfeaab845b250006ed8bf3df6776b5c11 (patch)
tree863e6db51e33c1e70984c6d09d2139c8e8463043 /sys
parent26e17c070f845e4d93bff080eead9f5d22253319 (diff)
kernel/amd64: bus: Move MMIO_OFFSET to bus.h
Signed-off-by: Ian Moffett <ian@osmora.org>
Diffstat (limited to 'sys')
-rw-r--r--sys/arch/amd64/amd64/bus_machdep.c8
-rw-r--r--sys/include/arch/amd64/bus.h8
2 files changed, 8 insertions, 8 deletions
diff --git a/sys/arch/amd64/amd64/bus_machdep.c b/sys/arch/amd64/amd64/bus_machdep.c
index 3d4b302..33dc7c4 100644
--- a/sys/arch/amd64/amd64/bus_machdep.c
+++ b/sys/arch/amd64/amd64/bus_machdep.c
@@ -36,14 +36,6 @@
#include <vm/pmap.h>
/*
- * Hyra assumes that the bootloader uses PDE[256] for some
- * higher half mappings. To avoid conflicts with those mappings,
- * this offset is used to start device memory at PDE[257]. This
- * will give us more than enough space.
- */
-#define MMIO_OFFSET (VM_HIGHER_HALF + 0x8000000000)
-
-/*
* Map a physical device address into the kernel address
* space.
*
diff --git a/sys/include/arch/amd64/bus.h b/sys/include/arch/amd64/bus.h
index 8f9bc39..b9d3362 100644
--- a/sys/include/arch/amd64/bus.h
+++ b/sys/include/arch/amd64/bus.h
@@ -32,6 +32,14 @@
#include <sys/types.h>
+/*
+ * Hyra assumes that the bootloader uses PDE[256] for some
+ * higher half mappings. To avoid conflicts with those mappings,
+ * this offset is used to start device memory at PDE[257]. This
+ * will give us more than enough space.
+ */
+#define MMIO_OFFSET (VM_HIGHER_HALF + 0x8000000000)
+
typedef uint64_t bus_addr_t;
int bus_map(bus_addr_t addr, size_t size, int flags, void **vap);