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-rw-r--r--mm/gup_test.h45
1 files changed, 45 insertions, 0 deletions
diff --git a/mm/gup_test.h b/mm/gup_test.h
new file mode 100644
index 0000000000..5b37b54e8b
--- /dev/null
+++ b/mm/gup_test.h
@@ -0,0 +1,45 @@
+/* SPDX-License-Identifier: GPL-2.0-or-later */
+#ifndef __GUP_TEST_H
+#define __GUP_TEST_H
+
+#include <linux/types.h>
+
+#define GUP_FAST_BENCHMARK _IOWR('g', 1, struct gup_test)
+#define PIN_FAST_BENCHMARK _IOWR('g', 2, struct gup_test)
+#define PIN_LONGTERM_BENCHMARK _IOWR('g', 3, struct gup_test)
+#define GUP_BASIC_TEST _IOWR('g', 4, struct gup_test)
+#define PIN_BASIC_TEST _IOWR('g', 5, struct gup_test)
+#define DUMP_USER_PAGES_TEST _IOWR('g', 6, struct gup_test)
+#define PIN_LONGTERM_TEST_START _IOW('g', 7, struct pin_longterm_test)
+#define PIN_LONGTERM_TEST_STOP _IO('g', 8)
+#define PIN_LONGTERM_TEST_READ _IOW('g', 9, __u64)
+
+#define GUP_TEST_MAX_PAGES_TO_DUMP 8
+
+#define GUP_TEST_FLAG_DUMP_PAGES_USE_PIN 0x1
+
+struct gup_test {
+ __u64 get_delta_usec;
+ __u64 put_delta_usec;
+ __u64 addr;
+ __u64 size;
+ __u32 nr_pages_per_call;
+ __u32 gup_flags;
+ __u32 test_flags;
+ /*
+ * Each non-zero entry is the number of the page (1-based: first page is
+ * page 1, so that zero entries mean "do nothing") from the .addr base.
+ */
+ __u32 which_pages[GUP_TEST_MAX_PAGES_TO_DUMP];
+};
+
+#define PIN_LONGTERM_TEST_FLAG_USE_WRITE 1
+#define PIN_LONGTERM_TEST_FLAG_USE_FAST 2
+
+struct pin_longterm_test {
+ __u64 addr;
+ __u64 size;
+ __u32 flags;
+};
+
+#endif /* __GUP_TEST_H */