From: Rob Clark <robdclark@gmail.com>
Date: Wed, 29 Nov 2017 20:06:39 +0000 (-0500)
Subject: freedreno: add debug option to force emulated indirect
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=e6c6495d3a850da9fc04355df40fc8ab8fa80621;p=mesa.git

freedreno: add debug option to force emulated indirect

Useful mostly for debugging indirect draw.

Signed-off-by: Rob Clark <robdclark@gmail.com>
---

diff --git a/src/gallium/drivers/freedreno/freedreno_draw.c b/src/gallium/drivers/freedreno/freedreno_draw.c
index 60a1180f24d..fc24776e4a9 100644
--- a/src/gallium/drivers/freedreno/freedreno_draw.c
+++ b/src/gallium/drivers/freedreno/freedreno_draw.c
@@ -27,6 +27,7 @@
  */
 
 #include "pipe/p_state.h"
+#include "util/u_draw.h"
 #include "util/u_string.h"
 #include "util/u_memory.h"
 #include "util/u_prim.h"
@@ -67,6 +68,15 @@ fd_draw_vbo(struct pipe_context *pctx, const struct pipe_draw_info *info)
 	struct pipe_scissor_state *scissor = fd_context_get_scissor(ctx);
 	unsigned i, prims, buffers = 0, restore_buffers = 0;
 
+	/* for debugging problems with indirect draw, it is convenient
+	 * to be able to emulate it, to determine if game is feeding us
+	 * bogus data:
+	 */
+	if (info->indirect && (fd_mesa_debug & FD_DBG_NOINDR)) {
+		util_draw_indirect(pctx, info);
+		return;
+	}
+
 	if (!info->count_from_stream_output && !info->indirect &&
 	    !info->primitive_restart &&
 	    !u_trim_pipe_prim(info->mode, (unsigned*)&info->count))
diff --git a/src/gallium/drivers/freedreno/freedreno_screen.c b/src/gallium/drivers/freedreno/freedreno_screen.c
index aea56a180af..35433da4b9f 100644
--- a/src/gallium/drivers/freedreno/freedreno_screen.c
+++ b/src/gallium/drivers/freedreno/freedreno_screen.c
@@ -79,6 +79,7 @@ static const struct debug_named_value debug_options[] = {
 		{"bstat",     FD_DBG_BSTAT,  "Print batch stats at context destroy"},
 		{"nogrow",    FD_DBG_NOGROW, "Disable \"growable\" cmdstream buffers, even if kernel supports it"},
 		{"lrz",       FD_DBG_LRZ,    "Enable experimental LRZ support (a5xx+)"},
+		{"noindirect",FD_DBG_NOINDR, "Disable hw indirect draws (emulate on CPU)"},
 		DEBUG_NAMED_VALUE_END
 };
 
diff --git a/src/gallium/drivers/freedreno/freedreno_util.h b/src/gallium/drivers/freedreno/freedreno_util.h
index 14fcf1d6725..b6f4771390e 100644
--- a/src/gallium/drivers/freedreno/freedreno_util.h
+++ b/src/gallium/drivers/freedreno/freedreno_util.h
@@ -80,6 +80,7 @@ enum adreno_stencil_op fd_stencil_op(unsigned op);
 #define FD_DBG_BSTAT    0x8000
 #define FD_DBG_NOGROW  0x10000
 #define FD_DBG_LRZ     0x20000
+#define FD_DBG_NOINDR  0x40000
 
 extern int fd_mesa_debug;
 extern bool fd_binning_enabled;