selftests/vm/pkeys: move generic definitions to header file

Moved all the generic definition and helper functions to the
header file.

Signed-off-by: Ram Pai <linuxram@us.ibm.com>
Signed-off-by: Thiago Jung Bauermann <bauerman@linux.ibm.com>
Signed-off-by: Sandipan Das <sandipan@linux.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Acked-by: Dave Hansen <dave.hansen@intel.com>
Cc: Florian Weimer <fweimer@redhat.com>
Cc: "Desnes A. Nunes do Rosario" <desnesn@linux.vnet.ibm.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: "Aneesh Kumar K.V" <aneesh.kumar@linux.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Michal Suchanek <msuchanek@suse.de>
Cc: Shuah Khan <shuah@kernel.org>
Link: http://lkml.kernel.org/r/57177f99e92a51295956715d5f2d5688a4d13927.1585646528.git.sandipan@linux.ibm.com
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

tools/testing/selftests/vm/pkey-helpers.h

@@ -13,6 +13,14 @@
 #include <ucontext.h>
 #include <sys/mman.h>
 
+/* Define some kernel-like types */
+#define  u8 uint8_t
+#define u16 uint16_t
+#define u32 uint32_t
+#define u64 uint64_t
+
+#define PTR_ERR_ENOTSUP ((void *)-ENOTSUP)
+
 #define NR_PKEYS 16
 #define PKEY_BITS_PER_PKEY 2
 
@@ -53,6 +61,18 @@ static inline void sigsafe_printf(const char *format, ...)
 #define dprintf3(args...) dprintf_level(3, args)
 #define dprintf4(args...) dprintf_level(4, args)
 
+extern void abort_hooks(void);
+#define pkey_assert(condition) do {		\
+	if (!(condition)) {			\
+		dprintf0("assert() at %s::%d test_nr: %d iteration: %d\n", \
+				__FILE__, __LINE__,	\
+				test_nr, iteration_nr);	\
+		dprintf0("errno at assert: %d", errno);	\
+		abort_hooks();			\
+		exit(__LINE__);			\
+	}					\
+} while (0)
+
 extern unsigned int shadow_pkey_reg;
 static inline unsigned int __read_pkey_reg(void)
 {
@@ -137,11 +157,6 @@ static inline void __pkey_write_allow(int pkey, int do_allow_write)
 	dprintf4("pkey_reg now: %08x\n", read_pkey_reg());
 }
 
-#define PROT_PKEY0     0x10            /* protection key value (bit 0) */
-#define PROT_PKEY1     0x20            /* protection key value (bit 1) */
-#define PROT_PKEY2     0x40            /* protection key value (bit 2) */
-#define PROT_PKEY3     0x80            /* protection key value (bit 3) */
-
 #define PAGE_SIZE 4096
 #define MB	(1<<20)
 
@@ -219,4 +234,14 @@ int pkey_reg_xstate_offset(void)
 	return xstate_offset;
 }
 
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof(*(x)))
+#define ALIGN_UP(x, align_to)	(((x) + ((align_to)-1)) & ~((align_to)-1))
+#define ALIGN_DOWN(x, align_to) ((x) & ~((align_to)-1))
+#define ALIGN_PTR_UP(p, ptr_align_to)	\
+	((typeof(p))ALIGN_UP((unsigned long)(p), ptr_align_to))
+#define ALIGN_PTR_DOWN(p, ptr_align_to)	\
+	((typeof(p))ALIGN_DOWN((unsigned long)(p), ptr_align_to))
+#define __stringify_1(x...)     #x
+#define __stringify(x...)       __stringify_1(x)
+
 #endif /* _PKEYS_HELPER_H */

tools/testing/selftests/vm/protection_keys.c

@@ -51,31 +51,10 @@ int test_nr;
 unsigned int shadow_pkey_reg;
 
 #define HPAGE_SIZE	(1UL<<21)
-#define ARRAY_SIZE(x) (sizeof(x) / sizeof(*(x)))
-#define ALIGN_UP(x, align_to)	(((x) + ((align_to)-1)) & ~((align_to)-1))
-#define ALIGN_DOWN(x, align_to) ((x) & ~((align_to)-1))
-#define ALIGN_PTR_UP(p, ptr_align_to)	((typeof(p))ALIGN_UP((unsigned long)(p),	ptr_align_to))
-#define ALIGN_PTR_DOWN(p, ptr_align_to)	((typeof(p))ALIGN_DOWN((unsigned long)(p),	ptr_align_to))
-#define __stringify_1(x...)     #x
-#define __stringify(x...)       __stringify_1(x)
-
-#define PTR_ERR_ENOTSUP ((void *)-ENOTSUP)
 
 int dprint_in_signal;
 char dprint_in_signal_buffer[DPRINT_IN_SIGNAL_BUF_SIZE];
 
-extern void abort_hooks(void);
-#define pkey_assert(condition) do {		\
-	if (!(condition)) {			\
-		dprintf0("assert() at %s::%d test_nr: %d iteration: %d\n", \
-				__FILE__, __LINE__,	\
-				test_nr, iteration_nr);	\
-		dprintf0("errno at assert: %d", errno);	\
-		abort_hooks();			\
-		exit(__LINE__);			\
-	}					\
-} while (0)
-
 void cat_into_file(char *str, char *file)
 {
 	int fd = open(file, O_RDWR);
@@ -186,12 +165,6 @@ void lots_o_noops_around_write(int *write_to_me)
 	dprintf3("%s() done\n", __func__);
 }
 
-/* Define some kernel-like types */
-#define  u8 uint8_t
-#define u16 uint16_t
-#define u32 uint32_t
-#define u64 uint64_t
-
 #ifdef __i386__
 
 #ifndef SYS_mprotect_key