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authorChris Wilson <chris@chris-wilson.co.uk>2014-01-17 14:33:26 +0000
committerChris Wilson <chris@chris-wilson.co.uk>2014-01-21 10:38:56 +0000
commitac22dd4292841e27bb6147cf1aa7867f36bb2118 (patch)
treef3958a7af578ff1dc141c0b51551dfa54c112a5c
parent720d131963b5c4d8f9e63c8852dbc133544ad312 (diff)
sna/gen4: Add an ALWAYS_FLUSH debugging option
Still gen4 is cursed. This should restore the plateau we reached with 2.99.907 by forcing a full GPU flush between every operation. References: https://bugs.freedesktop.org/show_bug.cgi?id=55500 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
-rw-r--r--src/sna/gen4_render.c12
1 files changed, 7 insertions, 5 deletions
diff --git a/src/sna/gen4_render.c b/src/sna/gen4_render.c
index e239c21f..720d5c37 100644
--- a/src/sna/gen4_render.c
+++ b/src/sna/gen4_render.c
@@ -54,6 +54,8 @@
#define FORCE_NONRECTILINEAR_SPANS -1
#define FORCE_FLUSH 1 /* https://bugs.freedesktop.org/show_bug.cgi?id=55500 */
+#define ALWAYS_FLUSH 1
+
#define NO_COMPOSITE 0
#define NO_COMPOSITE_SPANS 0
#define NO_COPY 0
@@ -584,7 +586,7 @@ gen4_emit_pipe_flush(struct sna *sna)
inline static void
gen4_emit_pipe_break(struct sna *sna)
{
-#if 1
+#if !ALWAYS_FLUSH
OUT_BATCH(GEN4_PIPE_CONTROL | (4 - 2));
OUT_BATCH(0);
OUT_BATCH(0);
@@ -1078,7 +1080,7 @@ gen4_emit_state(struct sna *sna,
flush = wm_binding_table & 1;
wm_binding_table &= ~1;
- if (kgem_bo_is_dirty(op->src.bo) || kgem_bo_is_dirty(op->mask.bo)) {
+ if (ALWAYS_FLUSH || kgem_bo_is_dirty(op->src.bo) || kgem_bo_is_dirty(op->mask.bo)) {
DBG(("%s: flushing dirty (%d, %d), forced? %d\n", __FUNCTION__,
kgem_bo_is_dirty(op->src.bo),
kgem_bo_is_dirty(op->mask.bo),
@@ -1138,7 +1140,7 @@ gen4_bind_surfaces(struct sna *sna,
offset = sna->render_state.gen4.surface_table;
}
- if (sna->kgem.batch[sna->render_state.gen4.surface_table] == binding_table[0])
+ if (!ALWAYS_FLUSH && sna->kgem.batch[sna->render_state.gen4.surface_table] == binding_table[0])
dirty = 0;
gen4_emit_state(sna, op, offset | dirty);
@@ -1376,7 +1378,7 @@ static void gen4_video_bind_surfaces(struct sna *sna,
src_surf_format);
}
- if (sna->kgem.batch[sna->render_state.gen4.surface_table] == binding_table[0])
+ if (!ALWAYS_FLUSH && sna->kgem.batch[sna->render_state.gen4.surface_table] == binding_table[0])
dirty = 0;
gen4_emit_state(sna, op, offset | dirty);
@@ -2322,7 +2324,7 @@ gen4_copy_bind_surfaces(struct sna *sna, const struct sna_composite_op *op)
offset = sna->render_state.gen4.surface_table;
}
- if (sna->kgem.batch[sna->render_state.gen4.surface_table] == binding_table[0])
+ if (!ALWAYS_FLUSH && sna->kgem.batch[sna->render_state.gen4.surface_table] == binding_table[0])
dirty = 0;
gen4_emit_state(sna, op, offset | dirty);