Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / arch / arm / mach-ks8695 / include / mach / memory.h

diff --git a/kernel/arch/arm/mach-ks8695/include/mach/memory.h b/kernel/arch/arm/mach-ks8695/include/mach/memory.h
new file mode 100644 (file)
index 0000000..ab0d27f
--- /dev/null
+++ b/kernel/arch/arm/mach-ks8695/include/mach/memory.h
@@ -0,0 +1,51 @@
+/*
+ * arch/arm/mach-ks8695/include/mach/memory.h
+ *
+ * Copyright (C) 2006 Andrew Victor
+ *
+ * KS8695 Memory definitions
+ *
+ * This file is licensed under  the terms of the GNU General Public
+ * License version 2. This program is licensed "as is" without any
+ * warranty of any kind, whether express or implied.
+ */
+
+#ifndef __ASM_ARCH_MEMORY_H
+#define __ASM_ARCH_MEMORY_H
+
+#include <mach/hardware.h>
+
+#ifndef __ASSEMBLY__
+
+#ifdef CONFIG_PCI
+
+/* PCI mappings */
+#define __virt_to_bus(x)       ((x) - PAGE_OFFSET + KS8695_PCIMEM_PA)
+#define __bus_to_virt(x)       ((x) - KS8695_PCIMEM_PA + PAGE_OFFSET)
+
+/* Platform-bus mapping */
+extern struct bus_type platform_bus_type;
+#define is_lbus_device(dev)            (dev && dev->bus == &platform_bus_type)
+#define __arch_dma_to_virt(dev, x)     ({ (void *) (is_lbus_device(dev) ? \
+                                       __phys_to_virt(x) : __bus_to_virt(x)); })
+#define __arch_virt_to_dma(dev, x)     ({ is_lbus_device(dev) ? \
+                                       (dma_addr_t)__virt_to_phys((unsigned long)x) \
+                                       : (dma_addr_t)__virt_to_bus(x); })
+#define __arch_pfn_to_dma(dev, pfn)    \
+       ({ dma_addr_t __dma = __pfn_to_phys(pfn); \
+          if (!is_lbus_device(dev)) \
+               __dma = __dma - PHYS_OFFSET + KS8695_PCIMEM_PA; \
+          __dma; })
+
+#define __arch_dma_to_pfn(dev, x)      \
+       ({ dma_addr_t __dma = x;                                \
+          if (!is_lbus_device(dev))                            \
+               __dma += PHYS_OFFSET - KS8695_PCIMEM_PA;        \
+          __phys_to_pfn(__dma);                                \
+       })
+
+#endif
+
+#endif
+
+#endif