aboutsummaryrefslogtreecommitdiff
path: root/include/exec/target_page.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/exec/target_page.h')
-rw-r--r--include/exec/target_page.h54
1 files changed, 50 insertions, 4 deletions
diff --git a/include/exec/target_page.h b/include/exec/target_page.h
index 98ffbb5..8e89e5c 100644
--- a/include/exec/target_page.h
+++ b/include/exec/target_page.h
@@ -14,10 +14,56 @@
#ifndef EXEC_TARGET_PAGE_H
#define EXEC_TARGET_PAGE_H
-size_t qemu_target_page_size(void);
-int qemu_target_page_mask(void);
-int qemu_target_page_bits(void);
-int qemu_target_page_bits_min(void);
+/*
+ * If compiling per-target, get the real values.
+ * For generic code, reuse the mechanism for variable page size.
+ */
+#ifdef COMPILING_PER_TARGET
+#include "cpu-param.h"
+#include "exec/target_long.h"
+#define TARGET_PAGE_TYPE target_long
+#else
+#define TARGET_PAGE_BITS_VARY
+#define TARGET_PAGE_TYPE int
+#endif
+
+#ifdef TARGET_PAGE_BITS_VARY
+# include "exec/page-vary.h"
+extern const TargetPageBits target_page;
+# ifdef CONFIG_DEBUG_TCG
+# define TARGET_PAGE_BITS ({ assert(target_page.decided); \
+ target_page.bits; })
+# define TARGET_PAGE_MASK ({ assert(target_page.decided); \
+ (TARGET_PAGE_TYPE)target_page.mask; })
+# else
+# define TARGET_PAGE_BITS target_page.bits
+# define TARGET_PAGE_MASK ((TARGET_PAGE_TYPE)target_page.mask)
+# endif
+# define TARGET_PAGE_SIZE (-(int)TARGET_PAGE_MASK)
+#else
+# define TARGET_PAGE_BITS_MIN TARGET_PAGE_BITS
+# define TARGET_PAGE_SIZE (1 << TARGET_PAGE_BITS)
+# define TARGET_PAGE_MASK ((TARGET_PAGE_TYPE)-1 << TARGET_PAGE_BITS)
+#endif
+#define TARGET_PAGE_ALIGN(addr) ROUND_UP((addr), TARGET_PAGE_SIZE)
+
+static inline size_t qemu_target_page_size(void)
+{
+ return TARGET_PAGE_SIZE;
+}
+
+static inline int qemu_target_page_mask(void)
+{
+ return TARGET_PAGE_MASK;
+}
+
+static inline int qemu_target_page_bits(void)
+{
+ return TARGET_PAGE_BITS;
+}
+
+int qemu_target_page_bits_min(void);
size_t qemu_target_pages_to_MiB(size_t pages);
+
#endif