drm/nv50-/kms: add some evo tracing ability for debugging
Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
diff --git a/drivers/gpu/drm/nouveau/nv50_display.c b/drivers/gpu/drm/nouveau/nv50_display.c
index 49f6128..2016d8e 100644
--- a/drivers/gpu/drm/nouveau/nv50_display.c
+++ b/drivers/gpu/drm/nouveau/nv50_display.c
@@ -440,8 +440,21 @@
mutex_unlock(&dmac->lock);
}
+#if 1
#define evo_mthd(p,m,s) *((p)++) = (((s) << 18) | (m))
#define evo_data(p,d) *((p)++) = (d)
+#else
+#define evo_mthd(p,m,s) do { \
+ const u32 _m = (m), _s = (s); \
+ printk(KERN_ERR "%04x %d %s\n", _m, _s, __func__); \
+ *((p)++) = ((_s << 18) | _m); \
+} while(0)
+#define evo_data(p,d) do { \
+ const u32 _d = (d); \
+ printk(KERN_ERR "\t%08x\n", _d); \
+ *((p)++) = _d; \
+} while(0)
+#endif
static bool
evo_sync_wait(void *data)