From: Marek Olšák <maraeo@gmail.com>
Date: Fri, 21 Dec 2012 18:15:20 +0000 (+0100)
Subject: winsys/radeon: the env var RADEON_NOOP can be used to skip CS ioctls
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=9b0b4cf05840fd8dcc4973524166024f948a97ec;p=mesa.git

winsys/radeon: the env var RADEON_NOOP can be used to skip CS ioctls
---

diff --git a/src/gallium/winsys/radeon/drm/radeon_drm_cs.c b/src/gallium/winsys/radeon/drm/radeon_drm_cs.c
index c6498ef7230..f9be96186e6 100644
--- a/src/gallium/winsys/radeon/drm/radeon_drm_cs.c
+++ b/src/gallium/winsys/radeon/drm/radeon_drm_cs.c
@@ -432,6 +432,8 @@ void radeon_drm_cs_sync_flush(struct radeon_drm_cs *cs)
     }
 }
 
+DEBUG_GET_ONCE_BOOL_OPTION(noop, "RADEON_NOOP", FALSE)
+
 static void radeon_drm_cs_flush(struct radeon_winsys_cs *rcs, unsigned flags)
 {
     struct radeon_drm_cs *cs = radeon_drm_cs(rcs);
@@ -449,7 +451,8 @@ static void radeon_drm_cs_flush(struct radeon_winsys_cs *rcs, unsigned flags)
     cs->cst = tmp;
 
     /* If the CS is not empty or overflowed, emit it in a separate thread. */
-    if (cs->base.cdw && cs->base.cdw <= RADEON_MAX_CMDBUF_DWORDS) {
+    if (cs->base.cdw && cs->base.cdw <= RADEON_MAX_CMDBUF_DWORDS &&
+	!debug_get_option_noop()) {
         unsigned i, crelocs = cs->cst->crelocs;
 
         cs->cst->chunks[0].length_dw = cs->base.cdw;