r600g: move queries to drivers/radeon

Reviewed-by: Michel Dänzer <[email protected]>
Reviewed-by: Tom Stellard <[email protected]>

5 files changed, 922 insertions, 0 deletions

diff --git a/src/gallium/drivers/radeon/Makefile.sources b/src/gallium/drivers/radeon/Makefile.sources
index 540ac05b9e8..7c028388e35 100644
--- a/src/gallium/drivers/radeon/Makefile.sources
+++ b/src/gallium/drivers/radeon/Makefile.sources
@@ -1,6 +1,7 @@
 C_SOURCES := \
 	r600_buffer_common.c \
 	r600_pipe_common.c \
+        r600_query.c \
 	r600_streamout.c \
         r600_texture.c \
 	radeon_uvd.c
diff --git a/src/gallium/drivers/radeon/r600_pipe_common.c b/src/gallium/drivers/radeon/r600_pipe_common.c
index 07bf383f74d..ad6dd253a1d 100644
--- a/src/gallium/drivers/radeon/r600_pipe_common.c
+++ b/src/gallium/drivers/radeon/r600_pipe_common.c
@@ -228,11 +228,14 @@ bool r600_common_context_init(struct r600_common_context *rctx,
 			 sizeof(struct r600_transfer), 64,
 			 UTIL_SLAB_SINGLETHREADED);
 
+	rctx->screen = rscreen;
 	rctx->ws = rscreen->ws;
 	rctx->family = rscreen->family;
 	rctx->chip_class = rscreen->chip_class;
+	rctx->max_db = rscreen->chip_class >= EVERGREEN ? 8 : 4;
 
 	r600_streamout_init(rctx);
+	r600_query_init(rctx);
 
 	rctx->allocator_so_filled_size = u_suballocator_create(&rctx->b, 4096, 4,
 							       0, PIPE_USAGE_STATIC, TRUE);
diff --git a/src/gallium/drivers/radeon/r600_pipe_common.h b/src/gallium/drivers/radeon/r600_pipe_common.h
index 6ee20f6fc77..48674c6e625 100644
--- a/src/gallium/drivers/radeon/r600_pipe_common.h
+++ b/src/gallium/drivers/radeon/r600_pipe_common.h
@@ -36,6 +36,7 @@
 
 #include "../../winsys/radeon/drm/radeon_winsys.h"
 
+#include "util/u_double_list.h"
 #include "util/u_range.h"
 #include "util/u_slab.h"
 #include "util/u_suballoc.h"
@@ -45,6 +46,11 @@
 #define R600_RESOURCE_FLAG_FLUSHED_DEPTH	(PIPE_RESOURCE_FLAG_DRV_PRIV << 1)
 #define R600_RESOURCE_FLAG_FORCE_TILING		(PIPE_RESOURCE_FLAG_DRV_PRIV << 2)
 
+#define R600_QUERY_DRAW_CALLS		(PIPE_QUERY_DRIVER_SPECIFIC + 0)
+#define R600_QUERY_REQUESTED_VRAM	(PIPE_QUERY_DRIVER_SPECIFIC + 1)
+#define R600_QUERY_REQUESTED_GTT	(PIPE_QUERY_DRIVER_SPECIFIC + 2)
+#define R600_QUERY_BUFFER_WAIT_TIME	(PIPE_QUERY_DRIVER_SPECIFIC + 3)
+
 /* read caches */
 #define R600_CONTEXT_INV_VERTEX_CACHE		(1 << 0)
 #define R600_CONTEXT_INV_TEX_CACHE		(1 << 1)
@@ -225,6 +231,7 @@ struct r600_rings {
 struct r600_common_context {
 	struct pipe_context b; /* base class */
 
+	struct r600_common_screen	*screen;
 	struct radeon_winsys		*ws;
 	enum radeon_family		family;
 	enum chip_class			chip_class;
@@ -244,6 +251,29 @@ struct r600_common_context {
 	/* Additional context states. */
 	unsigned flags; /* flush flags */
 
+	/* Queries. */
+	/* The list of active queries. Only one query of each type can be active. */
+	int				num_occlusion_queries;
+	int				num_pipelinestat_queries;
+	/* Keep track of non-timer queries, because they should be suspended
+	 * during context flushing.
+	 * The timer queries (TIME_ELAPSED) shouldn't be suspended. */
+	struct list_head		active_nontimer_queries;
+	unsigned			num_cs_dw_nontimer_queries_suspend;
+	/* If queries have been suspended. */
+	bool				nontimer_queries_suspended;
+	/* Additional hardware info. */
+	unsigned			backend_mask;
+	unsigned			max_db; /* for OQ */
+	/* Misc stats. */
+	unsigned			num_draw_calls;
+
+	/* Render condition. */
+	struct pipe_query		*current_render_cond;
+	unsigned			current_render_cond_mode;
+	boolean				current_render_cond_cond;
+	boolean				predicate_drawing;
+
 	/* Copy one resource to another using async DMA.
 	 * False is returned if the copy couldn't be done. */
 	boolean (*dma_copy)(struct pipe_context *ctx,
@@ -267,6 +297,13 @@ struct r600_common_context {
 	/* Reallocate the buffer and update all resource bindings where
 	 * the buffer is bound, including all resource descriptors. */
 	void (*invalidate_buffer)(struct pipe_context *ctx, struct pipe_resource *buf);
+
+	/* Enable or disable occlusion queries. */
+	void (*set_occlusion_query_state)(struct pipe_context *ctx, bool enable);
+
+	/* This ensures there is enough space in the command stream. */
+	void (*need_gfx_cs_space)(struct pipe_context *ctx, unsigned num_dw,
+				  bool include_draw_vbo);
 };
 
 /* r600_buffer.c */
@@ -297,6 +334,12 @@ bool r600_can_dump_shader(struct r600_common_screen *rscreen,
 void r600_screen_clear_buffer(struct r600_common_screen *rscreen, struct pipe_resource *dst,
 			      unsigned offset, unsigned size, unsigned value);
 
+/* r600_query.c */
+void r600_query_init(struct r600_common_context *rctx);
+void r600_suspend_nontimer_queries(struct r600_common_context *ctx);
+void r600_resume_nontimer_queries(struct r600_common_context *ctx);
+void r600_query_init_backend_mask(struct r600_common_context *ctx);
+
 /* r600_streamout.c */
 void r600_streamout_buffers_dirty(struct r600_common_context *rctx);
 void r600_set_streamout_targets(struct pipe_context *ctx,
diff --git a/src/gallium/drivers/radeon/r600_query.c b/src/gallium/drivers/radeon/r600_query.c
new file mode 100644
index 00000000000..ea9ad11e37f
--- /dev/null
+++ b/src/gallium/drivers/radeon/r600_query.c
@@ -0,0 +1,863 @@
+/*
+ * Copyright 2010 Jerome Glisse <[email protected]>
+ * Copyright 2014 Marek Olšák <[email protected]>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * on the rights to use, copy, modify, merge, publish, distribute, sub
+ * license, and/or sell copies of the Software, and to permit persons to whom
+ * the Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL
+ * THE AUTHOR(S) AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM,
+ * DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+ * OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
+ * USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "r600_cs.h"
+#include "util/u_memory.h"
+
+
+struct r600_query_buffer {
+	/* The buffer where query results are stored. */
+	struct r600_resource			*buf;
+	/* Offset of the next free result after current query data */
+	unsigned				results_end;
+	/* If a query buffer is full, a new buffer is created and the old one
+	 * is put in here. When we calculate the result, we sum up the samples
+	 * from all buffers. */
+	struct r600_query_buffer		*previous;
+};
+
+struct r600_query {
+	/* The query buffer and how many results are in it. */
+	struct r600_query_buffer		buffer;
+	/* The type of query */
+	unsigned				type;
+	/* Size of the result in memory for both begin_query and end_query,
+	 * this can be one or two numbers, or it could even be a size of a structure. */
+	unsigned				result_size;
+	/* The number of dwords for begin_query or end_query. */
+	unsigned				num_cs_dw;
+	/* linked list of queries */
+	struct list_head			list;
+	/* for custom non-GPU queries */
+	uint64_t begin_result;
+	uint64_t end_result;
+};
+
+
+static bool r600_is_timer_query(unsigned type)
+{
+	return type == PIPE_QUERY_TIME_ELAPSED ||
+	       type == PIPE_QUERY_TIMESTAMP ||
+	       type == PIPE_QUERY_TIMESTAMP_DISJOINT;
+}
+
+static bool r600_query_needs_begin(unsigned type)
+{
+	return type != PIPE_QUERY_GPU_FINISHED &&
+	       type != PIPE_QUERY_TIMESTAMP;
+}
+
+static struct r600_resource *r600_new_query_buffer(struct r600_common_context *ctx, unsigned type)
+{
+	unsigned j, i, num_results, buf_size = 4096;
+	uint32_t *results;
+
+	/* Non-GPU queries. */
+	switch (type) {
+	case R600_QUERY_DRAW_CALLS:
+	case R600_QUERY_REQUESTED_VRAM:
+	case R600_QUERY_REQUESTED_GTT:
+	case R600_QUERY_BUFFER_WAIT_TIME:
+		return NULL;
+	}
+
+	/* Queries are normally read by the CPU after
+	 * being written by the gpu, hence staging is probably a good
+	 * usage pattern.
+	 */
+	struct r600_resource *buf = (struct r600_resource*)
+		pipe_buffer_create(ctx->b.screen, PIPE_BIND_CUSTOM,
+				   PIPE_USAGE_STAGING, buf_size);
+
+	switch (type) {
+	case PIPE_QUERY_OCCLUSION_COUNTER:
+	case PIPE_QUERY_OCCLUSION_PREDICATE:
+		results = r600_buffer_map_sync_with_rings(ctx, buf, PIPE_TRANSFER_WRITE);
+		memset(results, 0, buf_size);
+
+		/* Set top bits for unused backends. */
+		num_results = buf_size / (16 * ctx->max_db);
+		for (j = 0; j < num_results; j++) {
+			for (i = 0; i < ctx->max_db; i++) {
+				if (!(ctx->backend_mask & (1<<i))) {
+					results[(i * 4)+1] = 0x80000000;
+					results[(i * 4)+3] = 0x80000000;
+				}
+			}
+			results += 4 * ctx->max_db;
+		}
+		ctx->ws->buffer_unmap(buf->cs_buf);
+		break;
+	case PIPE_QUERY_TIME_ELAPSED:
+	case PIPE_QUERY_TIMESTAMP:
+		break;
+	case PIPE_QUERY_PRIMITIVES_EMITTED:
+	case PIPE_QUERY_PRIMITIVES_GENERATED:
+	case PIPE_QUERY_SO_STATISTICS:
+	case PIPE_QUERY_SO_OVERFLOW_PREDICATE:
+	case PIPE_QUERY_PIPELINE_STATISTICS:
+		results = r600_buffer_map_sync_with_rings(ctx, buf, PIPE_TRANSFER_WRITE);
+		memset(results, 0, buf_size);
+		ctx->ws->buffer_unmap(buf->cs_buf);
+		break;
+	default:
+		assert(0);
+	}
+	return buf;
+}
+
+static void r600_update_occlusion_query_state(struct r600_common_context *rctx,
+					      unsigned type, int diff)
+{
+	if (type == PIPE_QUERY_OCCLUSION_COUNTER ||
+	    type == PIPE_QUERY_OCCLUSION_PREDICATE) {
+		bool old_enable = rctx->num_occlusion_queries != 0;
+		bool enable;
+
+		rctx->num_occlusion_queries += diff;
+		assert(rctx->num_occlusion_queries >= 0);
+
+		enable = rctx->num_occlusion_queries != 0;
+
+		if (enable != old_enable) {
+			rctx->set_occlusion_query_state(&rctx->b, enable);
+		}
+	}
+}
+
+static void r600_emit_query_begin(struct r600_common_context *ctx, struct r600_query *query)
+{
+	struct radeon_winsys_cs *cs = ctx->rings.gfx.cs;
+	uint64_t va;
+
+	r600_update_occlusion_query_state(ctx, query->type, 1);
+	ctx->need_gfx_cs_space(&ctx->b, query->num_cs_dw * 2, TRUE);
+
+	/* Get a new query buffer if needed. */
+	if (query->buffer.results_end + query->result_size > query->buffer.buf->b.b.width0) {
+		struct r600_query_buffer *qbuf = MALLOC_STRUCT(r600_query_buffer);
+		*qbuf = query->buffer;
+		query->buffer.buf = r600_new_query_buffer(ctx, query->type);
+		query->buffer.results_end = 0;
+		query->buffer.previous = qbuf;
+	}
+
+	/* emit begin query */
+	va = r600_resource_va(ctx->b.screen, (void*)query->buffer.buf);
+	va += query->buffer.results_end;
+
+	switch (query->type) {
+	case PIPE_QUERY_OCCLUSION_COUNTER:
+	case PIPE_QUERY_OCCLUSION_PREDICATE:
+		cs->buf[cs->cdw++] = PKT3(PKT3_EVENT_WRITE, 2, 0);
+		cs->buf[cs->cdw++] = EVENT_TYPE(EVENT_TYPE_ZPASS_DONE) | EVENT_INDEX(1);
+		cs->buf[cs->cdw++] = va;
+		cs->buf[cs->cdw++] = (va >> 32UL) & 0xFF;
+		break;
+	case PIPE_QUERY_PRIMITIVES_EMITTED:
+	case PIPE_QUERY_PRIMITIVES_GENERATED:
+	case PIPE_QUERY_SO_STATISTICS:
+	case PIPE_QUERY_SO_OVERFLOW_PREDICATE:
+		cs->buf[cs->cdw++] = PKT3(PKT3_EVENT_WRITE, 2, 0);
+		cs->buf[cs->cdw++] = EVENT_TYPE(EVENT_TYPE_SAMPLE_STREAMOUTSTATS) | EVENT_INDEX(3);
+		cs->buf[cs->cdw++] = va;
+		cs->buf[cs->cdw++] = (va >> 32UL) & 0xFF;
+		break;
+	case PIPE_QUERY_TIME_ELAPSED:
+		cs->buf[cs->cdw++] = PKT3(PKT3_EVENT_WRITE_EOP, 4, 0);
+		cs->buf[cs->cdw++] = EVENT_TYPE(EVENT_TYPE_CACHE_FLUSH_AND_INV_TS_EVENT) | EVENT_INDEX(5);
+		cs->buf[cs->cdw++] = va;
+		cs->buf[cs->cdw++] = (3 << 29) | ((va >> 32UL) & 0xFF);
+		cs->buf[cs->cdw++] = 0;
+		cs->buf[cs->cdw++] = 0;
+		break;
+	case PIPE_QUERY_PIPELINE_STATISTICS:
+		if (!ctx->num_pipelinestat_queries) {
+			cs->buf[cs->cdw++] = PKT3(PKT3_EVENT_WRITE, 0, 0);
+			cs->buf[cs->cdw++] = EVENT_TYPE(EVENT_TYPE_PIPELINESTAT_START) | EVENT_INDEX(0);
+		}
+		ctx->num_pipelinestat_queries++;
+		cs->buf[cs->cdw++] = PKT3(PKT3_EVENT_WRITE, 2, 0);
+		cs->buf[cs->cdw++] = EVENT_TYPE(EVENT_TYPE_SAMPLE_PIPELINESTAT) | EVENT_INDEX(2);
+		cs->buf[cs->cdw++] = va;
+		cs->buf[cs->cdw++] = (va >> 32UL) & 0xFF;
+		break;
+	default:
+		assert(0);
+	}
+	cs->buf[cs->cdw++] = PKT3(PKT3_NOP, 0, 0);
+	cs->buf[cs->cdw++] = r600_context_bo_reloc(ctx, &ctx->rings.gfx, query->buffer.buf, RADEON_USAGE_WRITE);
+
+	if (!r600_is_timer_query(query->type)) {
+		ctx->num_cs_dw_nontimer_queries_suspend += query->num_cs_dw;
+	}
+}
+
+static void r600_emit_query_end(struct r600_common_context *ctx, struct r600_query *query)
+{
+	struct radeon_winsys_cs *cs = ctx->rings.gfx.cs;
+	uint64_t va;
+
+	/* The queries which need begin already called this in begin_query. */
+	if (!r600_query_needs_begin(query->type)) {
+		ctx->need_gfx_cs_space(&ctx->b, query->num_cs_dw, FALSE);
+	}
+
+	va = r600_resource_va(ctx->b.screen, (void*)query->buffer.buf);
+	/* emit end query */
+	switch (query->type) {
+	case PIPE_QUERY_OCCLUSION_COUNTER:
+	case PIPE_QUERY_OCCLUSION_PREDICATE:
+		va += query->buffer.results_end + 8;
+		cs->buf[cs->cdw++] = PKT3(PKT3_EVENT_WRITE, 2, 0);
+		cs->buf[cs->cdw++] = EVENT_TYPE(EVENT_TYPE_ZPASS_DONE) | EVENT_INDEX(1);
+		cs->buf[cs->cdw++] = va;
+		cs->buf[cs->cdw++] = (va >> 32UL) & 0xFF;
+		break;
+	case PIPE_QUERY_PRIMITIVES_EMITTED:
+	case PIPE_QUERY_PRIMITIVES_GENERATED:
+	case PIPE_QUERY_SO_STATISTICS:
+	case PIPE_QUERY_SO_OVERFLOW_PREDICATE:
+		va += query->buffer.results_end + query->result_size/2;
+		cs->buf[cs->cdw++] = PKT3(PKT3_EVENT_WRITE, 2, 0);
+		cs->buf[cs->cdw++] = EVENT_TYPE(EVENT_TYPE_SAMPLE_STREAMOUTSTATS) | EVENT_INDEX(3);
+		cs->buf[cs->cdw++] = va;
+		cs->buf[cs->cdw++] = (va >> 32UL) & 0xFF;
+		break;
+	case PIPE_QUERY_TIME_ELAPSED:
+		va += query->buffer.results_end + query->result_size/2;
+		/* fall through */
+	case PIPE_QUERY_TIMESTAMP:
+		cs->buf[cs->cdw++] = PKT3(PKT3_EVENT_WRITE_EOP, 4, 0);
+		cs->buf[cs->cdw++] = EVENT_TYPE(EVENT_TYPE_CACHE_FLUSH_AND_INV_TS_EVENT) | EVENT_INDEX(5);
+		cs->buf[cs->cdw++] = va;
+		cs->buf[cs->cdw++] = (3 << 29) | ((va >> 32UL) & 0xFF);
+		cs->buf[cs->cdw++] = 0;
+		cs->buf[cs->cdw++] = 0;
+		break;
+	case PIPE_QUERY_PIPELINE_STATISTICS:
+		assert(ctx->num_pipelinestat_queries > 0);
+		ctx->num_pipelinestat_queries--;
+		if (!ctx->num_pipelinestat_queries) {
+			cs->buf[cs->cdw++] = PKT3(PKT3_EVENT_WRITE, 0, 0);
+			cs->buf[cs->cdw++] = EVENT_TYPE(EVENT_TYPE_PIPELINESTAT_STOP) | EVENT_INDEX(0);
+		}
+		va += query->buffer.results_end + query->result_size/2;
+		cs->buf[cs->cdw++] = PKT3(PKT3_EVENT_WRITE, 2, 0);
+		cs->buf[cs->cdw++] = EVENT_TYPE(EVENT_TYPE_SAMPLE_PIPELINESTAT) | EVENT_INDEX(2);
+		cs->buf[cs->cdw++] = va;
+		cs->buf[cs->cdw++] = (va >> 32UL) & 0xFF;
+		break;
+	default:
+		assert(0);
+	}
+	cs->buf[cs->cdw++] = PKT3(PKT3_NOP, 0, 0);
+	cs->buf[cs->cdw++] = r600_context_bo_reloc(ctx, &ctx->rings.gfx, query->buffer.buf, RADEON_USAGE_WRITE);
+
+	query->buffer.results_end += query->result_size;
+
+	if (r600_query_needs_begin(query->type)) {
+		if (!r600_is_timer_query(query->type)) {
+			ctx->num_cs_dw_nontimer_queries_suspend -= query->num_cs_dw;
+		}
+	}
+
+	r600_update_occlusion_query_state(ctx, query->type, -1);
+}
+
+static void r600_emit_query_predication(struct r600_common_context *ctx, struct r600_query *query,
+					int operation, bool flag_wait)
+{
+	struct radeon_winsys_cs *cs = ctx->rings.gfx.cs;
+
+	if (operation == PREDICATION_OP_CLEAR) {
+		ctx->need_gfx_cs_space(&ctx->b, 3, FALSE);
+
+		cs->buf[cs->cdw++] = PKT3(PKT3_SET_PREDICATION, 1, 0);
+		cs->buf[cs->cdw++] = 0;
+		cs->buf[cs->cdw++] = PRED_OP(PREDICATION_OP_CLEAR);
+	} else {
+		struct r600_query_buffer *qbuf;
+		unsigned count;
+		uint32_t op;
+
+		/* Find how many results there are. */
+		count = 0;
+		for (qbuf = &query->buffer; qbuf; qbuf = qbuf->previous) {
+			count += qbuf->results_end / query->result_size;
+		}
+
+		ctx->need_gfx_cs_space(&ctx->b, 5 * count, TRUE);
+
+		op = PRED_OP(operation) | PREDICATION_DRAW_VISIBLE |
+				(flag_wait ? PREDICATION_HINT_WAIT : PREDICATION_HINT_NOWAIT_DRAW);
+
+		/* emit predicate packets for all data blocks */
+		for (qbuf = &query->buffer; qbuf; qbuf = qbuf->previous) {
+			unsigned results_base = 0;
+			uint64_t va = r600_resource_va(ctx->b.screen, &qbuf->buf->b.b);
+
+			while (results_base < qbuf->results_end) {
+				cs->buf[cs->cdw++] = PKT3(PKT3_SET_PREDICATION, 1, 0);
+				cs->buf[cs->cdw++] = (va + results_base) & 0xFFFFFFFFUL;
+				cs->buf[cs->cdw++] = op | (((va + results_base) >> 32UL) & 0xFF);
+				cs->buf[cs->cdw++] = PKT3(PKT3_NOP, 0, 0);
+				cs->buf[cs->cdw++] = r600_context_bo_reloc(ctx, &ctx->rings.gfx, qbuf->buf, RADEON_USAGE_READ);
+				results_base += query->result_size;
+
+				/* set CONTINUE bit for all packets except the first */
+				op |= PREDICATION_CONTINUE;
+			}
+		} while (qbuf);
+	}
+}
+
+static struct pipe_query *r600_create_query(struct pipe_context *ctx, unsigned query_type)
+{
+	struct r600_common_context *rctx = (struct r600_common_context *)ctx;
+	struct r600_query *query;
+	bool skip_allocation = false;
+
+	query = CALLOC_STRUCT(r600_query);
+	if (query == NULL)
+		return NULL;
+
+	query->type = query_type;
+
+	switch (query_type) {
+	case PIPE_QUERY_OCCLUSION_COUNTER:
+	case PIPE_QUERY_OCCLUSION_PREDICATE:
+		query->result_size = 16 * rctx->max_db;
+		query->num_cs_dw = 6;
+		break;
+	case PIPE_QUERY_TIME_ELAPSED:
+		query->result_size = 16;
+		query->num_cs_dw = 8;
+		break;
+	case PIPE_QUERY_TIMESTAMP:
+		query->result_size = 8;
+		query->num_cs_dw = 8;
+		break;
+	case PIPE_QUERY_PRIMITIVES_EMITTED:
+	case PIPE_QUERY_PRIMITIVES_GENERATED:
+	case PIPE_QUERY_SO_STATISTICS:
+	case PIPE_QUERY_SO_OVERFLOW_PREDICATE:
+		/* NumPrimitivesWritten, PrimitiveStorageNeeded. */
+		query->result_size = 32;
+		query->num_cs_dw = 6;
+		break;
+	case PIPE_QUERY_PIPELINE_STATISTICS:
+		/* 11 values on EG, 8 on R600. */
+		query->result_size = (rctx->chip_class >= EVERGREEN ? 11 : 8) * 16;
+		query->num_cs_dw = 8;
+		break;
+	/* Non-GPU queries. */
+	case R600_QUERY_DRAW_CALLS:
+	case R600_QUERY_REQUESTED_VRAM:
+	case R600_QUERY_REQUESTED_GTT:
+	case R600_QUERY_BUFFER_WAIT_TIME:
+		skip_allocation = true;
+		break;
+	default:
+		assert(0);
+		FREE(query);
+		return NULL;
+	}
+
+	if (!skip_allocation) {
+		query->buffer.buf = r600_new_query_buffer(rctx, query_type);
+		if (!query->buffer.buf) {
+			FREE(query);
+			return NULL;
+		}
+	}
+	return (struct pipe_query*)query;
+}
+
+static void r600_destroy_query(struct pipe_context *ctx, struct pipe_query *query)
+{
+	struct r600_query *rquery = (struct r600_query*)query;
+	struct r600_query_buffer *prev = rquery->buffer.previous;
+
+	/* Release all query buffers. */
+	while (prev) {
+		struct r600_query_buffer *qbuf = prev;
+		prev = prev->previous;
+		pipe_resource_reference((struct pipe_resource**)&qbuf->buf, NULL);
+		FREE(qbuf);
+	}
+
+	pipe_resource_reference((struct pipe_resource**)&rquery->buffer.buf, NULL);
+	FREE(query);
+}
+
+static void r600_begin_query(struct pipe_context *ctx, struct pipe_query *query)
+{
+	struct r600_common_context *rctx = (struct r600_common_context *)ctx;
+	struct r600_query *rquery = (struct r600_query *)query;
+	struct r600_query_buffer *prev = rquery->buffer.previous;
+
+	if (!r600_query_needs_begin(rquery->type)) {
+		assert(0);
+		return;
+	}
+
+	/* Non-GPU queries. */
+	switch (rquery->type) {
+	case R600_QUERY_DRAW_CALLS:
+		rquery->begin_result = rctx->num_draw_calls;
+		return;
+	case R600_QUERY_REQUESTED_VRAM:
+	case R600_QUERY_REQUESTED_GTT:
+		rquery->begin_result = 0;
+		return;
+	case R600_QUERY_BUFFER_WAIT_TIME:
+		rquery->begin_result = rctx->ws->query_value(rctx->ws, RADEON_BUFFER_WAIT_TIME_NS);
+		return;
+	}
+
+	/* Discard the old query buffers. */
+	while (prev) {
+		struct r600_query_buffer *qbuf = prev;
+		prev = prev->previous;
+		pipe_resource_reference((struct pipe_resource**)&qbuf->buf, NULL);
+		FREE(qbuf);
+	}
+
+	/* Obtain a new buffer if the current one can't be mapped without a stall. */
+	if (r600_rings_is_buffer_referenced(rctx, rquery->buffer.buf->cs_buf, RADEON_USAGE_READWRITE) ||
+	    rctx->ws->buffer_is_busy(rquery->buffer.buf->buf, RADEON_USAGE_READWRITE)) {
+		pipe_resource_reference((struct pipe_resource**)&rquery->buffer.buf, NULL);
+		rquery->buffer.buf = r600_new_query_buffer(rctx, rquery->type);
+	}
+
+	rquery->buffer.results_end = 0;
+	rquery->buffer.previous = NULL;
+
+	r600_emit_query_begin(rctx, rquery);
+
+	if (!r600_is_timer_query(rquery->type)) {
+		LIST_ADDTAIL(&rquery->list, &rctx->active_nontimer_queries);
+	}
+}
+
+static void r600_end_query(struct pipe_context *ctx, struct pipe_query *query)
+{
+	struct r600_common_context *rctx = (struct r600_common_context *)ctx;
+	struct r600_query *rquery = (struct r600_query *)query;
+
+	/* Non-GPU queries. */
+	switch (rquery->type) {
+	case R600_QUERY_DRAW_CALLS:
+		rquery->end_result = rctx->num_draw_calls;
+		return;
+	case R600_QUERY_REQUESTED_VRAM:
+		rquery->end_result = rctx->ws->query_value(rctx->ws, RADEON_REQUESTED_VRAM_MEMORY);
+		return;
+	case R600_QUERY_REQUESTED_GTT:
+		rquery->end_result = rctx->ws->query_value(rctx->ws, RADEON_REQUESTED_GTT_MEMORY);
+		return;
+	case R600_QUERY_BUFFER_WAIT_TIME:
+		rquery->end_result = rctx->ws->query_value(rctx->ws, RADEON_BUFFER_WAIT_TIME_NS);
+		return;
+	}
+
+	r600_emit_query_end(rctx, rquery);
+
+	if (r600_query_needs_begin(rquery->type) && !r600_is_timer_query(rquery->type)) {
+		LIST_DELINIT(&rquery->list);
+	}
+}
+
+static unsigned r600_query_read_result(char *map, unsigned start_index, unsigned end_index,
+				       bool test_status_bit)
+{
+	uint32_t *current_result = (uint32_t*)map;
+	uint64_t start, end;
+
+	start = (uint64_t)current_result[start_index] |
+		(uint64_t)current_result[start_index+1] << 32;
+	end = (uint64_t)current_result[end_index] |
+	      (uint64_t)current_result[end_index+1] << 32;
+
+	if (!test_status_bit ||
+	    ((start & 0x8000000000000000UL) && (end & 0x8000000000000000UL))) {
+		return end - start;
+	}
+	return 0;
+}
+
+static boolean r600_get_query_buffer_result(struct r600_common_context *ctx,
+					    struct r600_query *query,
+					    struct r600_query_buffer *qbuf,
+					    boolean wait,
+					    union pipe_query_result *result)
+{
+	unsigned results_base = 0;
+	char *map;
+
+	/* Non-GPU queries. */
+	switch (query->type) {
+	case R600_QUERY_DRAW_CALLS:
+	case R600_QUERY_REQUESTED_VRAM:
+	case R600_QUERY_REQUESTED_GTT:
+	case R600_QUERY_BUFFER_WAIT_TIME:
+		result->u64 = query->end_result - query->begin_result;
+		return TRUE;
+	}
+
+	map = r600_buffer_map_sync_with_rings(ctx, qbuf->buf,
+						PIPE_TRANSFER_READ |
+						(wait ? 0 : PIPE_TRANSFER_DONTBLOCK));
+	if (!map)
+		return FALSE;
+
+	/* count all results across all data blocks */
+	switch (query->type) {
+	case PIPE_QUERY_OCCLUSION_COUNTER:
+		while (results_base != qbuf->results_end) {
+			result->u64 +=
+				r600_query_read_result(map + results_base, 0, 2, true);
+			results_base += 16;
+		}
+		break;
+	case PIPE_QUERY_OCCLUSION_PREDICATE:
+		while (results_base != qbuf->results_end) {
+			result->b = result->b ||
+				r600_query_read_result(map + results_base, 0, 2, true) != 0;
+			results_base += 16;
+		}
+		break;
+	case PIPE_QUERY_TIME_ELAPSED:
+		while (results_base != qbuf->results_end) {
+			result->u64 +=
+				r600_query_read_result(map + results_base, 0, 2, false);
+			results_base += query->result_size;
+		}
+		break;
+	case PIPE_QUERY_TIMESTAMP:
+	{
+		uint32_t *current_result = (uint32_t*)map;
+		result->u64 = (uint64_t)current_result[0] |
+			      (uint64_t)current_result[1] << 32;
+		break;
+	}
+	case PIPE_QUERY_PRIMITIVES_EMITTED:
+		/* SAMPLE_STREAMOUTSTATS stores this structure:
+		 * {
+		 *    u64 NumPrimitivesWritten;
+		 *    u64 PrimitiveStorageNeeded;
+		 * }
+		 * We only need NumPrimitivesWritten here. */
+		while (results_base != qbuf->results_end) {
+			result->u64 +=
+				r600_query_read_result(map + results_base, 2, 6, true);
+			results_base += query->result_size;
+		}
+		break;
+	case PIPE_QUERY_PRIMITIVES_GENERATED:
+		/* Here we read PrimitiveStorageNeeded. */
+		while (results_base != qbuf->results_end) {
+			result->u64 +=
+				r600_query_read_result(map + results_base, 0, 4, true);
+			results_base += query->result_size;
+		}
+		break;
+	case PIPE_QUERY_SO_STATISTICS:
+		while (results_base != qbuf->results_end) {
+			result->so_statistics.num_primitives_written +=
+				r600_query_read_result(map + results_base, 2, 6, true);
+			result->so_statistics.primitives_storage_needed +=
+				r600_query_read_result(map + results_base, 0, 4, true);
+			results_base += query->result_size;
+		}
+		break;
+	case PIPE_QUERY_SO_OVERFLOW_PREDICATE:
+		while (results_base != qbuf->results_end) {
+			result->b = result->b ||
+				r600_query_read_result(map + results_base, 2, 6, true) !=
+				r600_query_read_result(map + results_base, 0, 4, true);
+			results_base += query->result_size;
+		}
+		break;
+	case PIPE_QUERY_PIPELINE_STATISTICS:
+		if (ctx->chip_class >= EVERGREEN) {
+			while (results_base != qbuf->results_end) {
+				result->pipeline_statistics.ps_invocations +=
+					r600_query_read_result(map + results_base, 0, 22, false);
+				result->pipeline_statistics.c_primitives +=
+					r600_query_read_result(map + results_base, 2, 24, false);
+				result->pipeline_statistics.c_invocations +=
+					r600_query_read_result(map + results_base, 4, 26, false);
+				result->pipeline_statistics.vs_invocations +=
+					r600_query_read_result(map + results_base, 6, 28, false);
+				result->pipeline_statistics.gs_invocations +=
+					r600_query_read_result(map + results_base, 8, 30, false);
+				result->pipeline_statistics.gs_primitives +=
+					r600_query_read_result(map + results_base, 10, 32, false);
+				result->pipeline_statistics.ia_primitives +=
+					r600_query_read_result(map + results_base, 12, 34, false);
+				result->pipeline_statistics.ia_vertices +=
+					r600_query_read_result(map + results_base, 14, 36, false);
+				result->pipeline_statistics.hs_invocations +=
+					r600_query_read_result(map + results_base, 16, 38, false);
+				result->pipeline_statistics.ds_invocations +=
+					r600_query_read_result(map + results_base, 18, 40, false);
+				result->pipeline_statistics.cs_invocations +=
+					r600_query_read_result(map + results_base, 20, 42, false);
+				results_base += query->result_size;
+			}
+		} else {
+			while (results_base != qbuf->results_end) {
+				result->pipeline_statistics.ps_invocations +=
+					r600_query_read_result(map + results_base, 0, 16, false);
+				result->pipeline_statistics.c_primitives +=
+					r600_query_read_result(map + results_base, 2, 18, false);
+				result->pipeline_statistics.c_invocations +=
+					r600_query_read_result(map + results_base, 4, 20, false);
+				result->pipeline_statistics.vs_invocations +=
+					r600_query_read_result(map + results_base, 6, 22, false);
+				result->pipeline_statistics.gs_invocations +=
+					r600_query_read_result(map + results_base, 8, 24, false);
+				result->pipeline_statistics.gs_primitives +=
+					r600_query_read_result(map + results_base, 10, 26, false);
+				result->pipeline_statistics.ia_primitives +=
+					r600_query_read_result(map + results_base, 12, 28, false);
+				result->pipeline_statistics.ia_vertices +=
+					r600_query_read_result(map + results_base, 14, 30, false);
+				results_base += query->result_size;
+			}
+		}
+#if 0 /* for testing */
+		printf("Pipeline stats: IA verts=%llu, IA prims=%llu, VS=%llu, HS=%llu, "
+		       "DS=%llu, GS=%llu, GS prims=%llu, Clipper=%llu, "
+		       "Clipper prims=%llu, PS=%llu, CS=%llu\n",
+		       result->pipeline_statistics.ia_vertices,
+		       result->pipeline_statistics.ia_primitives,
+		       result->pipeline_statistics.vs_invocations,
+		       result->pipeline_statistics.hs_invocations,
+		       result->pipeline_statistics.ds_invocations,
+		       result->pipeline_statistics.gs_invocations,
+		       result->pipeline_statistics.gs_primitives,
+		       result->pipeline_statistics.c_invocations,
+		       result->pipeline_statistics.c_primitives,
+		       result->pipeline_statistics.ps_invocations,
+		       result->pipeline_statistics.cs_invocations);
+#endif
+		break;
+	default:
+		assert(0);
+	}
+
+	ctx->ws->buffer_unmap(qbuf->buf->cs_buf);
+	return TRUE;
+}
+
+static boolean r600_get_query_result(struct pipe_context *ctx,
+					struct pipe_query *query,
+					boolean wait, union pipe_query_result *result)
+{
+	struct r600_common_context *rctx = (struct r600_common_context *)ctx;
+	struct r600_query *rquery = (struct r600_query *)query;
+	struct r600_query_buffer *qbuf;
+
+	util_query_clear_result(result, rquery->type);
+
+	for (qbuf = &rquery->buffer; qbuf; qbuf = qbuf->previous) {
+		if (!r600_get_query_buffer_result(rctx, rquery, qbuf, wait, result)) {
+			return FALSE;
+		}
+	}
+
+	/* Convert the time to expected units. */
+	if (rquery->type == PIPE_QUERY_TIME_ELAPSED ||
+	    rquery->type == PIPE_QUERY_TIMESTAMP) {
+		result->u64 = (1000000 * result->u64) / rctx->screen->info.r600_clock_crystal_freq;
+	}
+	return TRUE;
+}
+
+static void r600_render_condition(struct pipe_context *ctx,
+				  struct pipe_query *query,
+				  boolean condition,
+				  uint mode)
+{
+	struct r600_common_context *rctx = (struct r600_common_context *)ctx;
+	struct r600_query *rquery = (struct r600_query *)query;
+	bool wait_flag = false;
+
+	rctx->current_render_cond = query;
+	rctx->current_render_cond_cond = condition;
+	rctx->current_render_cond_mode = mode;
+
+	if (query == NULL) {
+		if (rctx->predicate_drawing) {
+			rctx->predicate_drawing = false;
+			r600_emit_query_predication(rctx, NULL, PREDICATION_OP_CLEAR, false);
+		}
+		return;
+	}
+
+	if (mode == PIPE_RENDER_COND_WAIT ||
+	    mode == PIPE_RENDER_COND_BY_REGION_WAIT) {
+		wait_flag = true;
+	}
+
+	rctx->predicate_drawing = true;
+
+	switch (rquery->type) {
+	case PIPE_QUERY_OCCLUSION_COUNTER:
+	case PIPE_QUERY_OCCLUSION_PREDICATE:
+		r600_emit_query_predication(rctx, rquery, PREDICATION_OP_ZPASS, wait_flag);
+		break;
+	case PIPE_QUERY_PRIMITIVES_EMITTED:
+	case PIPE_QUERY_PRIMITIVES_GENERATED:
+	case PIPE_QUERY_SO_STATISTICS:
+	case PIPE_QUERY_SO_OVERFLOW_PREDICATE:
+		r600_emit_query_predication(rctx, rquery, PREDICATION_OP_PRIMCOUNT, wait_flag);
+		break;
+	default:
+		assert(0);
+	}
+}
+
+void r600_suspend_nontimer_queries(struct r600_common_context *ctx)
+{
+	struct r600_query *query;
+
+	LIST_FOR_EACH_ENTRY(query, &ctx->active_nontimer_queries, list) {
+		r600_emit_query_end(ctx, query);
+	}
+	assert(ctx->num_cs_dw_nontimer_queries_suspend == 0);
+}
+
+void r600_resume_nontimer_queries(struct r600_common_context *ctx)
+{
+	struct r600_query *query;
+
+	assert(ctx->num_cs_dw_nontimer_queries_suspend == 0);
+
+	LIST_FOR_EACH_ENTRY(query, &ctx->active_nontimer_queries, list) {
+		r600_emit_query_begin(ctx, query);
+	}
+}
+
+/* Get backends mask */
+void r600_query_init_backend_mask(struct r600_common_context *ctx)
+{
+	struct radeon_winsys_cs *cs = ctx->rings.gfx.cs;
+	struct r600_resource *buffer;
+	uint32_t *results;
+	unsigned num_backends = ctx->screen->info.r600_num_backends;
+	unsigned i, mask = 0;
+	uint64_t va;
+
+	/* if backend_map query is supported by the kernel */
+	if (ctx->screen->info.r600_backend_map_valid) {
+		unsigned num_tile_pipes = ctx->screen->info.r600_num_tile_pipes;
+		unsigned backend_map = ctx->screen->info.r600_backend_map;
+		unsigned item_width, item_mask;
+
+		if (ctx->chip_class >= EVERGREEN) {
+			item_width = 4;
+			item_mask = 0x7;
+		} else {
+			item_width = 2;
+			item_mask = 0x3;
+		}
+
+		while(num_tile_pipes--) {
+			i = backend_map & item_mask;
+			mask |= (1<<i);
+			backend_map >>= item_width;
+		}
+		if (mask != 0) {
+			ctx->backend_mask = mask;
+			return;
+		}
+	}
+
+	/* otherwise backup path for older kernels */
+
+	/* create buffer for event data */
+	buffer = (struct r600_resource*)
+		pipe_buffer_create(ctx->b.screen, PIPE_BIND_CUSTOM,
+				   PIPE_USAGE_STAGING, ctx->max_db*16);
+	if (!buffer)
+		goto err;
+	va = r600_resource_va(ctx->b.screen, (void*)buffer);
+
+	/* initialize buffer with zeroes */
+	results = r600_buffer_map_sync_with_rings(ctx, buffer, PIPE_TRANSFER_WRITE);
+	if (results) {
+		memset(results, 0, ctx->max_db * 4 * 4);
+		ctx->ws->buffer_unmap(buffer->cs_buf);
+
+		/* emit EVENT_WRITE for ZPASS_DONE */
+		cs->buf[cs->cdw++] = PKT3(PKT3_EVENT_WRITE, 2, 0);
+		cs->buf[cs->cdw++] = EVENT_TYPE(EVENT_TYPE_ZPASS_DONE) | EVENT_INDEX(1);
+		cs->buf[cs->cdw++] = va;
+		cs->buf[cs->cdw++] = (va >> 32UL) & 0xFF;
+
+		cs->buf[cs->cdw++] = PKT3(PKT3_NOP, 0, 0);
+		cs->buf[cs->cdw++] = r600_context_bo_reloc(ctx, &ctx->rings.gfx, buffer, RADEON_USAGE_WRITE);
+
+		/* analyze results */
+		results = r600_buffer_map_sync_with_rings(ctx, buffer, PIPE_TRANSFER_READ);
+		if (results) {
+			for(i = 0; i < ctx->max_db; i++) {
+				/* at least highest bit will be set if backend is used */
+				if (results[i*4 + 1])
+					mask |= (1<<i);
+			}
+			ctx->ws->buffer_unmap(buffer->cs_buf);
+		}
+	}
+
+	pipe_resource_reference((struct pipe_resource**)&buffer, NULL);
+
+	if (mask != 0) {
+		ctx->backend_mask = mask;
+		return;
+	}
+
+err:
+	/* fallback to old method - set num_backends lower bits to 1 */
+	ctx->backend_mask = (~((uint32_t)0))>>(32-num_backends);
+	return;
+}
+
+void r600_query_init(struct r600_common_context *rctx)
+{
+	rctx->b.create_query = r600_create_query;
+	rctx->b.destroy_query = r600_destroy_query;
+	rctx->b.begin_query = r600_begin_query;
+	rctx->b.end_query = r600_end_query;
+	rctx->b.get_query_result = r600_get_query_result;
+
+	if (((struct r600_common_screen*)rctx->b.screen)->info.r600_num_backends > 0)
+	    rctx->b.render_condition = r600_render_condition;
+
+	LIST_INITHEAD(&rctx->active_nontimer_queries);
+}
diff --git a/src/gallium/drivers/radeon/r600d_common.h b/src/gallium/drivers/radeon/r600d_common.h
index 99146941570..357d26f4eb8 100644
--- a/src/gallium/drivers/radeon/r600d_common.h
+++ b/src/gallium/drivers/radeon/r600d_common.h
@@ -40,6 +40,7 @@
 #define RADEON_CP_PACKET3_COMPUTE_MODE 0x00000002
 
 #define PKT3_NOP                               0x10
+#define PKT3_SET_PREDICATION                   0x20
 #define PKT3_STRMOUT_BUFFER_UPDATE             0x34
 #define		STRMOUT_STORE_BUFFER_FILLED_SIZE	1
 #define		STRMOUT_OFFSET_SOURCE(x)	(((x) & 0x3) << 1)
@@ -51,6 +52,7 @@
 #define PKT3_WAIT_REG_MEM                      0x3C
 #define		WAIT_REG_MEM_EQUAL		3
 #define PKT3_EVENT_WRITE                       0x46
+#define PKT3_EVENT_WRITE_EOP                   0x47
 #define PKT3_SET_CONFIG_REG		       0x68
 #define PKT3_SET_CONTEXT_REG		       0x69
 #define PKT3_STRMOUT_BASE_UPDATE	       0x72 /* r700 only */
@@ -82,6 +84,16 @@
 		 * 5 - TS events
 		 */
 
+#define PREDICATION_OP_CLEAR 0x0
+#define PREDICATION_OP_ZPASS 0x1
+#define PREDICATION_OP_PRIMCOUNT 0x2
+#define PRED_OP(x) ((x) << 16)
+#define PREDICATION_CONTINUE (1 << 31)
+#define PREDICATION_HINT_WAIT (0 << 12)
+#define PREDICATION_HINT_NOWAIT_DRAW (1 << 12)
+#define PREDICATION_DRAW_NOT_VISIBLE (0 << 8)
+#define PREDICATION_DRAW_VISIBLE (1 << 8)
+
 /* R600-R700*/
 #define R_008490_CP_STRMOUT_CNTL		     0x008490
 #define   S_008490_OFFSET_UPDATE_DONE(x)		(((x) & 0x1) << 0)