diff mbox series

[v2,3/5] selftests/powerpc: Update the stack expansion test

Message ID 20200724092528.1578671-3-mpe@ellerman.id.au (mailing list archive)
State Accepted
Commit 9ee571d84bf8cfdd587a1acbf3490ca90fc40c9d
Headers show
Series [v2,1/5] selftests/powerpc: Add test of stack expansion logic | expand

Commit Message

Michael Ellerman July 24, 2020, 9:25 a.m. UTC 
Update the stack expansion load/store test to take into account the
new allowance of 4224 bytes below the stack pointer.

Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
---
 .../selftests/powerpc/mm/stack_expansion_ldst.c        | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

v2: Update for change of size to 4224.
diff mbox series

Patch

diff --git a/tools/testing/selftests/powerpc/mm/stack_expansion_ldst.c b/tools/testing/selftests/powerpc/mm/stack_expansion_ldst.c
index 0587e11437f5..8dbfb51acf0f 100644
--- a/tools/testing/selftests/powerpc/mm/stack_expansion_ldst.c
+++ b/tools/testing/selftests/powerpc/mm/stack_expansion_ldst.c
@@ -186,17 +186,17 @@  static void test_one_type(enum access_type type, unsigned long page_size, unsign
 	// But if we go past the rlimit it should fail
 	assert(test_one(DEFAULT_SIZE, rlim_cur + 1, type) != 0);
 
-	// Above 1MB powerpc only allows accesses within 2048 bytes of
+	// Above 1MB powerpc only allows accesses within 4224 bytes of
 	// r1 for accesses that aren't stdu
-	assert(test_one(1 * _MB + page_size - 128, -2048, type) == 0);
+	assert(test_one(1 * _MB + page_size - 128, -4224, type) == 0);
 #ifdef __powerpc__
-	assert(test_one(1 * _MB + page_size - 128, -2049, type) != 0);
+	assert(test_one(1 * _MB + page_size - 128, -4225, type) != 0);
 #else
-	assert(test_one(1 * _MB + page_size - 128, -2049, type) == 0);
+	assert(test_one(1 * _MB + page_size - 128, -4225, type) == 0);
 #endif
 
 	// By consuming 2MB of stack we test the stdu case
-	assert(test_one(2 * _MB + page_size - 128, -2048, type) == 0);
+	assert(test_one(2 * _MB + page_size - 128, -4224, type) == 0);
 }
 
 static int test(void)