tests/pm_rps: load harder

Big core platforms need some seriuos omph to break a sweat.

This fixes min-max-config-loaded here on my ivb.

Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=75146
Cc: Jeff McGee <jeff.mcgee@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

diff --git a/tests/pm_rps.c b/tests/pm_rps.c
index fc6bac6..b5dd494 100644 (file)
--- a/tests/pm_rps.c
+++ b/tests/pm_rps.c
@@ -156,6 +156,7 @@ static struct load_helper {
        enum load load;
        bool exit;
        struct igt_helper_process igt_proc;
+       drm_intel_bo *src, *dst;
 } lh;
 
 static void load_helper_signal_handler(int sig)
@@ -195,6 +196,7 @@ static void emit_store_dword_imm(uint32_t val)
 }
 
 #define LOAD_HELPER_PAUSE_USEC 500
+#define LOAD_HELPER_BO_SIZE (16*1024*1024)
 static void load_helper_set_load(enum load load)
 {
        assert(lh.igt_proc.running);
@@ -226,6 +228,10 @@ static void load_helper_run(enum load load)
                signal(SIGUSR2, load_helper_signal_handler);
 
                while (!lh.exit) {
+                       if (lh.load == HIGH)
+                               intel_copy_bo(lh.batch, lh.dst, lh.dst,
+                                             LOAD_HELPER_BO_SIZE);
+
                        emit_store_dword_imm(val);
                        intel_batchbuffer_flush_on_ring(lh.batch, 0);
                        val++;
@@ -270,6 +276,13 @@ static void load_helper_init(void)
        lh.target_buffer = drm_intel_bo_alloc(lh.bufmgr, "target bo",
                                              4096, 4096);
        igt_assert(lh.target_buffer);
+
+       lh.dst = drm_intel_bo_alloc(lh.bufmgr, "dst bo",
+                                   LOAD_HELPER_BO_SIZE, 4096);
+       igt_assert(lh.dst);
+       lh.src = drm_intel_bo_alloc(lh.bufmgr, "src bo",
+                                   LOAD_HELPER_BO_SIZE, 4096);
+       igt_assert(lh.src);
 }
 
 static void load_helper_deinit(void)