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igt/gem_userptr_blits: Limit amount of mlocked surfaces

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When testing surface eviction we don't need that many surfaces as we
mlock surplus memory. Reducing the number of surfaces speeds up the test
and prevents a couple of integer overflow bugs.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=94004
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson
2016-02-04 17:41:05 +00:00
parent 7b5a818581
commit 0e96238bf3
2 changed files with 11 additions and 28 deletions
Download Patch File Download Diff File Expand all files Collapse all files
tests/eviction_common.c
+6 -5
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@@ -133,7 +133,7 @@ static void mlocked_evictions(int fd, struct igt_eviction_test_ops *ops,
uint64_t surface_size,
uint64_t surface_count)
{
size_t sz, pin;
uint64_t sz, pin;
void *locked;
intel_require_memory(surface_count, surface_size, CHECK_RAM);
@@ -142,10 +142,11 @@ static void mlocked_evictions(int fd, struct igt_eviction_test_ops *ops,
pin = intel_get_avail_ram_mb();
pin *= 1024 * 1024;
igt_require(pin > sz);
pin -= 3*sz/2;
pin -= sz;
igt_debug("Pinning [%ld, %ld] MiB\n",
(long)pin/(1024*1024), (long)(pin + sz)/(1024*1024));
igt_debug("Pinning [%'lld, %'lld] MiB\n",
(long long)pin/(1024*1024),
(long long)(pin + sz)/(1024*1024));
locked = malloc(pin + sz);
if (locked != NULL && mlock(locked, pin + sz)) {
@@ -185,7 +186,7 @@ static void mlocked_evictions(int fd, struct igt_eviction_test_ops *ops,
locked = malloc(surface_size);
if (locked == NULL || mlock(locked, surface_size))
exit(ENOSPC);
free(locked);
}
for (n = 0; n < surface_count; n++)