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-rw-r--r--tools/testing/selftests/vm/va_128TBswitch.c289
1 files changed, 0 insertions, 289 deletions
diff --git a/tools/testing/selftests/vm/va_128TBswitch.c b/tools/testing/selftests/vm/va_128TBswitch.c
deleted file mode 100644
index 83acdff26a13..000000000000
--- a/tools/testing/selftests/vm/va_128TBswitch.c
+++ /dev/null
@@ -1,289 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/*
- *
- * Authors: Kirill A. Shutemov <kirill.shutemov@linux.intel.com>
- * Authors: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
- */
-
-#include <stdio.h>
-#include <sys/mman.h>
-#include <string.h>
-
-#define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]))
-
-#ifdef __powerpc64__
-#define PAGE_SIZE (64 << 10)
-/*
- * This will work with 16M and 2M hugepage size
- */
-#define HUGETLB_SIZE (16 << 20)
-#else
-#define PAGE_SIZE (4 << 10)
-#define HUGETLB_SIZE (2 << 20)
-#endif
-
-/*
- * >= 128TB is the hint addr value we used to select
- * large address space.
- */
-#define ADDR_SWITCH_HINT (1UL << 47)
-#define LOW_ADDR ((void *) (1UL << 30))
-#define HIGH_ADDR ((void *) (1UL << 48))
-
-struct testcase {
- void *addr;
- unsigned long size;
- unsigned long flags;
- const char *msg;
- unsigned int low_addr_required:1;
- unsigned int keep_mapped:1;
-};
-
-static struct testcase testcases[] = {
- {
- /*
- * If stack is moved, we could possibly allocate
- * this at the requested address.
- */
- .addr = ((void *)(ADDR_SWITCH_HINT - PAGE_SIZE)),
- .size = PAGE_SIZE,
- .flags = MAP_PRIVATE | MAP_ANONYMOUS,
- .msg = "mmap(ADDR_SWITCH_HINT - PAGE_SIZE, PAGE_SIZE)",
- .low_addr_required = 1,
- },
- {
- /*
- * We should never allocate at the requested address or above it
- * The len cross the 128TB boundary. Without MAP_FIXED
- * we will always search in the lower address space.
- */
- .addr = ((void *)(ADDR_SWITCH_HINT - PAGE_SIZE)),
- .size = 2 * PAGE_SIZE,
- .flags = MAP_PRIVATE | MAP_ANONYMOUS,
- .msg = "mmap(ADDR_SWITCH_HINT - PAGE_SIZE, (2 * PAGE_SIZE))",
- .low_addr_required = 1,
- },
- {
- /*
- * Exact mapping at 128TB, the area is free we should get that
- * even without MAP_FIXED.
- */
- .addr = ((void *)(ADDR_SWITCH_HINT)),
- .size = PAGE_SIZE,
- .flags = MAP_PRIVATE | MAP_ANONYMOUS,
- .msg = "mmap(ADDR_SWITCH_HINT, PAGE_SIZE)",
- .keep_mapped = 1,
- },
- {
- .addr = (void *)(ADDR_SWITCH_HINT),
- .size = 2 * PAGE_SIZE,
- .flags = MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED,
- .msg = "mmap(ADDR_SWITCH_HINT, 2 * PAGE_SIZE, MAP_FIXED)",
- },
- {
- .addr = NULL,
- .size = 2 * PAGE_SIZE,
- .flags = MAP_PRIVATE | MAP_ANONYMOUS,
- .msg = "mmap(NULL)",
- .low_addr_required = 1,
- },
- {
- .addr = LOW_ADDR,
- .size = 2 * PAGE_SIZE,
- .flags = MAP_PRIVATE | MAP_ANONYMOUS,
- .msg = "mmap(LOW_ADDR)",
- .low_addr_required = 1,
- },
- {
- .addr = HIGH_ADDR,
- .size = 2 * PAGE_SIZE,
- .flags = MAP_PRIVATE | MAP_ANONYMOUS,
- .msg = "mmap(HIGH_ADDR)",
- .keep_mapped = 1,
- },
- {
- .addr = HIGH_ADDR,
- .size = 2 * PAGE_SIZE,
- .flags = MAP_PRIVATE | MAP_ANONYMOUS,
- .msg = "mmap(HIGH_ADDR) again",
- .keep_mapped = 1,
- },
- {
- .addr = HIGH_ADDR,
- .size = 2 * PAGE_SIZE,
- .flags = MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED,
- .msg = "mmap(HIGH_ADDR, MAP_FIXED)",
- },
- {
- .addr = (void *) -1,
- .size = 2 * PAGE_SIZE,
- .flags = MAP_PRIVATE | MAP_ANONYMOUS,
- .msg = "mmap(-1)",
- .keep_mapped = 1,
- },
- {
- .addr = (void *) -1,
- .size = 2 * PAGE_SIZE,
- .flags = MAP_PRIVATE | MAP_ANONYMOUS,
- .msg = "mmap(-1) again",
- },
- {
- .addr = ((void *)(ADDR_SWITCH_HINT - PAGE_SIZE)),
- .size = PAGE_SIZE,
- .flags = MAP_PRIVATE | MAP_ANONYMOUS,
- .msg = "mmap(ADDR_SWITCH_HINT - PAGE_SIZE, PAGE_SIZE)",
- .low_addr_required = 1,
- },
- {
- .addr = (void *)(ADDR_SWITCH_HINT - PAGE_SIZE),
- .size = 2 * PAGE_SIZE,
- .flags = MAP_PRIVATE | MAP_ANONYMOUS,
- .msg = "mmap(ADDR_SWITCH_HINT - PAGE_SIZE, 2 * PAGE_SIZE)",
- .low_addr_required = 1,
- .keep_mapped = 1,
- },
- {
- .addr = (void *)(ADDR_SWITCH_HINT - PAGE_SIZE / 2),
- .size = 2 * PAGE_SIZE,
- .flags = MAP_PRIVATE | MAP_ANONYMOUS,
- .msg = "mmap(ADDR_SWITCH_HINT - PAGE_SIZE/2 , 2 * PAGE_SIZE)",
- .low_addr_required = 1,
- .keep_mapped = 1,
- },
- {
- .addr = ((void *)(ADDR_SWITCH_HINT)),
- .size = PAGE_SIZE,
- .flags = MAP_PRIVATE | MAP_ANONYMOUS,
- .msg = "mmap(ADDR_SWITCH_HINT, PAGE_SIZE)",
- },
- {
- .addr = (void *)(ADDR_SWITCH_HINT),
- .size = 2 * PAGE_SIZE,
- .flags = MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED,
- .msg = "mmap(ADDR_SWITCH_HINT, 2 * PAGE_SIZE, MAP_FIXED)",
- },
-};
-
-static struct testcase hugetlb_testcases[] = {
- {
- .addr = NULL,
- .size = HUGETLB_SIZE,
- .flags = MAP_HUGETLB | MAP_PRIVATE | MAP_ANONYMOUS,
- .msg = "mmap(NULL, MAP_HUGETLB)",
- .low_addr_required = 1,
- },
- {
- .addr = LOW_ADDR,
- .size = HUGETLB_SIZE,
- .flags = MAP_HUGETLB | MAP_PRIVATE | MAP_ANONYMOUS,
- .msg = "mmap(LOW_ADDR, MAP_HUGETLB)",
- .low_addr_required = 1,
- },
- {
- .addr = HIGH_ADDR,
- .size = HUGETLB_SIZE,
- .flags = MAP_HUGETLB | MAP_PRIVATE | MAP_ANONYMOUS,
- .msg = "mmap(HIGH_ADDR, MAP_HUGETLB)",
- .keep_mapped = 1,
- },
- {
- .addr = HIGH_ADDR,
- .size = HUGETLB_SIZE,
- .flags = MAP_HUGETLB | MAP_PRIVATE | MAP_ANONYMOUS,
- .msg = "mmap(HIGH_ADDR, MAP_HUGETLB) again",
- .keep_mapped = 1,
- },
- {
- .addr = HIGH_ADDR,
- .size = HUGETLB_SIZE,
- .flags = MAP_HUGETLB | MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED,
- .msg = "mmap(HIGH_ADDR, MAP_FIXED | MAP_HUGETLB)",
- },
- {
- .addr = (void *) -1,
- .size = HUGETLB_SIZE,
- .flags = MAP_HUGETLB | MAP_PRIVATE | MAP_ANONYMOUS,
- .msg = "mmap(-1, MAP_HUGETLB)",
- .keep_mapped = 1,
- },
- {
- .addr = (void *) -1,
- .size = HUGETLB_SIZE,
- .flags = MAP_HUGETLB | MAP_PRIVATE | MAP_ANONYMOUS,
- .msg = "mmap(-1, MAP_HUGETLB) again",
- },
- {
- .addr = (void *)(ADDR_SWITCH_HINT - PAGE_SIZE),
- .size = 2 * HUGETLB_SIZE,
- .flags = MAP_HUGETLB | MAP_PRIVATE | MAP_ANONYMOUS,
- .msg = "mmap(ADDR_SWITCH_HINT - PAGE_SIZE, 2*HUGETLB_SIZE, MAP_HUGETLB)",
- .low_addr_required = 1,
- .keep_mapped = 1,
- },
- {
- .addr = (void *)(ADDR_SWITCH_HINT),
- .size = 2 * HUGETLB_SIZE,
- .flags = MAP_HUGETLB | MAP_PRIVATE | MAP_ANONYMOUS | MAP_FIXED,
- .msg = "mmap(ADDR_SWITCH_HINT , 2*HUGETLB_SIZE, MAP_FIXED | MAP_HUGETLB)",
- },
-};
-
-static int run_test(struct testcase *test, int count)
-{
- void *p;
- int i, ret = 0;
-
- for (i = 0; i < count; i++) {
- struct testcase *t = test + i;
-
- p = mmap(t->addr, t->size, PROT_READ | PROT_WRITE, t->flags, -1, 0);
-
- printf("%s: %p - ", t->msg, p);
-
- if (p == MAP_FAILED) {
- printf("FAILED\n");
- ret = 1;
- continue;
- }
-
- if (t->low_addr_required && p >= (void *)(ADDR_SWITCH_HINT)) {
- printf("FAILED\n");
- ret = 1;
- } else {
- /*
- * Do a dereference of the address returned so that we catch
- * bugs in page fault handling
- */
- memset(p, 0, t->size);
- printf("OK\n");
- }
- if (!t->keep_mapped)
- munmap(p, t->size);
- }
-
- return ret;
-}
-
-static int supported_arch(void)
-{
-#if defined(__powerpc64__)
- return 1;
-#elif defined(__x86_64__)
- return 1;
-#else
- return 0;
-#endif
-}
-
-int main(int argc, char **argv)
-{
- int ret;
-
- if (!supported_arch())
- return 0;
-
- ret = run_test(testcases, ARRAY_SIZE(testcases));
- if (argc == 2 && !strcmp(argv[1], "--run-hugetlb"))
- ret = run_test(hugetlb_testcases, ARRAY_SIZE(hugetlb_testcases));
- return ret;
-}