gem_render_linear_blits: Trim usage to fit within RAM

This is a render correctness test, the intention is not to exercise the
swapper (but preferrably some eviction code).

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=75247
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>

1 files changed, 4 insertions, 1 deletions

diff --git a/tests/gem_render_linear_blits.c b/tests/gem_render_linear_blits.c
index c63b0914..5ba7c98f 100644
--- a/tests/gem_render_linear_blits.c
+++ b/tests/gem_render_linear_blits.c
@@ -99,7 +99,10 @@ int main(int argc, char **argv)
 		return 1;
 	}
 
-	printf("Using %d 1MiB buffers\n", count);
+	if (count > intel_get_total_ram_mb() * 9 / 10) {
+		count = intel_get_total_ram_mb() * 9 / 10;
+		printf("not enough RAM to run test, reducing buffer count\n");
+	}
 
 	bo = malloc(sizeof(*bo)*count);
 	start_val = malloc(sizeof(*start_val)*count);