When a batch is flushed, INTEL_DEBUG=bat prints a message indicating
which part of the code triggered the flushed, and some statistics about
the batch/state buffer utilization.
It also decodes the batchbuffer in debug builds...which is so much
output that it drowns out the utilization messages, if that's all you
care about.
INTEL_DEBUG=flush now just does the utilization messages.
INTEL_DEBUG=bat continues to do both (as the message is a good indicator
that we're starting decode of a new batch).
---
docs/envvars.html | 1 +
src/intel/common/gen_debug.c | 1 +
src/intel/common/gen_debug.h | 2 +-
src/mesa/drivers/dri/i965/intel_batchbuffer.c | 2 +-
4 files changed, 4 insertions(+), 2 deletions(-)
diff --git a/docs/envvars.html b/docs/envvars.html
index 9e2f8163644..ddd1470327e 100644
--- a/docs/envvars.html
+++ b/docs/envvars.html
@@ -175,6 +175,7 @@ See the <a href="xlibdriver.html">Xlib software driver
page</a> for details.
<li>do32 - generate compute shader SIMD32 programs even if workgroup size
doesn't exceed the SIMD16 limit</li>
<li>dri - emit messages about the DRI interface</li>
<li>fbo - emit messages about framebuffers</li>
+ <li>flush - emit batchbuffer usage statistics</li>
<li>fs - dump shader assembly for fragment shaders</li>
<li>gs - dump shader assembly for geometry shaders</li>
<li>hex - print instruction hex dump with the disassembly</li>
diff --git a/src/intel/common/gen_debug.c b/src/intel/common/gen_debug.c
index b604d56ef86..068a43ecfdb 100644
--- a/src/intel/common/gen_debug.c
+++ b/src/intel/common/gen_debug.c
@@ -57,6 +57,7 @@ static const struct debug_control debug_control[] = {
{ "vert", DEBUG_VERTS },
{ "dri", DEBUG_DRI },
{ "sf", DEBUG_SF },
+ { "flush", DEBUG_FLUSH },
{ "wm", DEBUG_WM },
{ "urb", DEBUG_URB },
{ "vs", DEBUG_VS },
diff --git a/src/intel/common/gen_debug.h b/src/intel/common/gen_debug.h
index d290303682e..ea34f7247f3 100644
--- a/src/intel/common/gen_debug.h
+++ b/src/intel/common/gen_debug.h
@@ -57,7 +57,7 @@ extern uint64_t INTEL_DEBUG;
#define DEBUG_VERTS (1ull << 13)
#define DEBUG_DRI (1ull << 14)
#define DEBUG_SF (1ull << 15)
-/* Hole - feel free to reuse (1ull << 16) */
+#define DEBUG_FLUSH (1ull << 16)
#define DEBUG_WM (1ull << 17)
#define DEBUG_URB (1ull << 18)
#define DEBUG_VS (1ull << 19)
diff --git a/src/mesa/drivers/dri/i965/intel_batchbuffer.c
b/src/mesa/drivers/dri/i965/intel_batchbuffer.c
index 08d35ace135..422e6754d54 100644
--- a/src/mesa/drivers/dri/i965/intel_batchbuffer.c
+++ b/src/mesa/drivers/dri/i965/intel_batchbuffer.c
@@ -731,7 +731,7 @@ _intel_batchbuffer_flush_fence(struct brw_context *brw,
brw_bo_reference(brw->throttle_batch[0]);
}
- if (unlikely(INTEL_DEBUG & DEBUG_BATCH)) {
+ if (unlikely(INTEL_DEBUG & (DEBUG_BATCH | DEBUG_FLUSH))) {
int bytes_for_commands = 4 * USED_BATCH(brw->batch);
int bytes_for_state = brw->batch.bo->size -
brw->batch.state_batch_offset;
int total_bytes = bytes_for_commands + bytes_for_state;
--
2.14.1
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