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Diffstat (limited to 'sysdeps/aarch64/tst-sme-jmp.c')
-rw-r--r--sysdeps/aarch64/tst-sme-jmp.c81
1 files changed, 3 insertions, 78 deletions
diff --git a/sysdeps/aarch64/tst-sme-jmp.c b/sysdeps/aarch64/tst-sme-jmp.c
index 62c419f..103897a 100644
--- a/sysdeps/aarch64/tst-sme-jmp.c
+++ b/sysdeps/aarch64/tst-sme-jmp.c
@@ -27,87 +27,12 @@
#include <support/support.h>
#include <support/test-driver.h>
-struct blk {
- void *za_save_buffer;
- uint16_t num_za_save_slices;
- char __reserved[6];
-};
+#include "tst-sme-helper.h"
-static unsigned long svl;
static uint8_t *za_orig;
static uint8_t *za_dump;
static uint8_t *za_save;
-static unsigned long
-get_svl (void)
-{
- register unsigned long x0 asm ("x0");
- asm volatile (
- ".inst 0x04bf5820 /* rdsvl x0, 1 */\n"
- : "=r" (x0));
- return x0;
-}
-
-/* PSTATE.ZA = 1, set ZA state to active. */
-static void
-start_za (void)
-{
- asm volatile (
- ".inst 0xd503457f /* smstart za */");
-}
-
-/* Read SVCR to get SM (bit0) and ZA (bit1) state. */
-static unsigned long
-get_svcr (void)
-{
- register unsigned long x0 asm ("x0");
- asm volatile (
- ".inst 0xd53b4240 /* mrs x0, svcr */\n"
- : "=r" (x0));
- return x0;
-}
-
-/* Load data into ZA byte by byte from p. */
-static void __attribute__ ((noinline))
-load_za (const void *p)
-{
- register unsigned long x15 asm ("x15") = 0;
- register unsigned long x16 asm ("x16") = (unsigned long)p;
- register unsigned long x17 asm ("x17") = svl;
-
- asm volatile (
- ".inst 0xd503437f /* smstart sm */\n"
- ".L_ldr_loop:\n"
- ".inst 0xe1006200 /* ldr za[w15, 0], [x16] */\n"
- "add w15, w15, 1\n"
- ".inst 0x04305030 /* addvl x16, x16, 1 */\n"
- "cmp w15, w17\n"
- "bne .L_ldr_loop\n"
- ".inst 0xd503427f /* smstop sm */\n"
- : "+r"(x15), "+r"(x16), "+r"(x17));
-}
-
-/* Set tpidr2 to BLK. */
-static void
-set_tpidr2 (struct blk *blk)
-{
- register unsigned long x0 asm ("x0") = (unsigned long)blk;
- asm volatile (
- ".inst 0xd51bd0a0 /* msr tpidr2_el0, x0 */\n"
- :: "r"(x0) : "memory");
-}
-
-/* Returns tpidr2. */
-static void *
-get_tpidr2 (void)
-{
- register unsigned long x0 asm ("x0");
- asm volatile (
- ".inst 0xd53bd0a0 /* mrs x0, tpidr2_el0 */\n"
- : "=r"(x0) :: "memory");
- return (void *) x0;
-}
-
static void
print_data(const char *msg, void *p)
{
@@ -168,8 +93,8 @@ longjmp_test (void)
{
p = get_tpidr2 ();
printf ("before longjmp: tp2 = %p\n", p);
- if (p != &blk)
- FAIL_EXIT1 ("tpidr2 is clobbered");
+ if (p != NULL)
+ FAIL_EXIT1 ("tpidr2 has not been reset to null");
do_longjmp (env);
FAIL_EXIT1 ("longjmp returned");
}