Changes in kernel/arch/sparc64/include/mm/frame.h [f238e86:2bf4936] in mainline

File:

• kernel/arch/sparc64/include/mm/frame.h (modified) (1 diff)

kernel/arch/sparc64/include/mm/frame.h

@@ -36 +36 @@
 #define KERN_sparc64_FRAME_H_
 
-#if defined (SUN4U)
-#include <arch/mm/sun4u/frame.h>
-#elif defined (SUN4V)
-#include <arch/mm/sun4v/frame.h>
+/*
+ * Page size supported by the MMU.
+ * For 8K there is the nasty illegal virtual aliasing problem.
+ * Therefore, the kernel uses 8K only internally on the TLB and TSB levels.
+ */
+#define MMU_FRAME_WIDTH         13      /* 8K */
+#define MMU_FRAME_SIZE          (1 << MMU_FRAME_WIDTH)
+
+/*
+ * Page size exported to the generic memory management subsystems.
+ * This page size is not directly supported by the MMU, but we can emulate
+ * each 16K page with a pair of adjacent 8K pages.
+ */
+#define FRAME_WIDTH             14      /* 16K */
+#define FRAME_SIZE              (1 << FRAME_WIDTH)
+
+#ifdef KERNEL
+#ifndef __ASM__
+
+#include <arch/types.h>
+
+union frame_address {
+        uintptr_t address;
+        struct {
+#if defined (US)
+                unsigned : 23;
+                uint64_t pfn : 28;              /**< Physical Frame Number. */
+#elif defined (US3)
+                unsigned : 21;
+                uint64_t pfn : 30;              /**< Physical Frame Number. */
+#endif
+                unsigned offset : 13;           /**< Offset. */
+        } __attribute__ ((packed));
+};
+
+typedef union frame_address frame_address_t;
+
+extern uintptr_t last_frame;
+extern uintptr_t end_of_identity;
+
+extern void frame_arch_init(void);
+#define physmem_print()
+
+#endif
 #endif