diff options
Diffstat (limited to 'mm/gup_test.h')
| -rw-r--r-- | mm/gup_test.h | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/mm/gup_test.h b/mm/gup_test.h index 921b4caad8ef..90a6713d50eb 100644 --- a/mm/gup_test.h +++ b/mm/gup_test.h @@ -9,6 +9,11 @@ #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 GUP_TEST_MAX_PAGES_TO_DUMP 8 + +#define GUP_TEST_FLAG_DUMP_PAGES_USE_PIN 0x1 struct gup_test { __u64 get_delta_usec; @@ -17,6 +22,11 @@ struct gup_test { __u64 size; __u32 nr_pages_per_call; __u32 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]; }; #endif /* __GUP_TEST_H */ |