src/gallium/drivers/nv50/nv50_query.c - platform/external/mesa3d - Git at Google

 /*
  * Copyright 2011 Nouveau Project
  *
  * 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
  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  * 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 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 NONINFRINGEMENT.  IN NO EVENT SHALL
  * THE AUTHORS 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.
  *
  * Authors: Christoph Bumiller
  */

 #define NV50_PUSH_EXPLICIT_SPACE_CHECKING

 #include "nv50_context.h"
 #include "nouveau/nv_object.xml.h"

 /* XXX: Nested queries, and simultaneous queries on multiple gallium contexts
  * (since we use only a single GPU channel per screen) will not work properly.
  *
  * The first is not that big of an issue because OpenGL does not allow nested
  * queries anyway.
  */

 struct nv50_query {
    uint32_t *data;
    uint16_t type;
    uint16_t index;
    uint32_t sequence;
    struct nouveau_bo *bo;
    uint32_t base;
    uint32_t offset; /* base + i * 16 */
    boolean ready;
    boolean flushed;
    boolean is64bit;
    struct nouveau_mm_allocation *mm;
 };

 #define NV50_QUERY_ALLOC_SPACE 128

 static INLINE struct nv50_query *
 nv50_query(struct pipe_query *pipe)
 {
    return (struct nv50_query *)pipe;
 }

 static boolean
 nv50_query_allocate(struct nv50_context *nv50, struct nv50_query *q, int size)
 {
    struct nv50_screen *screen = nv50->screen;
    int ret;

    if (q->bo) {
       nouveau_bo_ref(NULL, &q->bo);
       if (q->mm) {
          if (q->ready)
             nouveau_mm_free(q->mm);
          else
             nouveau_fence_work(screen->base.fence.current, nouveau_mm_free_work,
                                q->mm);
       }
    }
    if (size) {
       q->mm = nouveau_mm_allocate(screen->base.mm_GART, size, &q->bo, &q->base);
       if (!q->bo)
          return FALSE;
       q->offset = q->base;

       ret = nouveau_bo_map(q->bo, 0, screen->base.client);
       if (ret) {
          nv50_query_allocate(nv50, q, 0);
          return FALSE;
       }
       q->data = (uint32_t *)((uint8_t *)q->bo->map + q->base);
    }
    return TRUE;
 }

 static void
 nv50_query_destroy(struct pipe_context *pipe, struct pipe_query *pq)
 {
    nv50_query_allocate(nv50_context(pipe), nv50_query(pq), 0);
    FREE(nv50_query(pq));
 }

 static struct pipe_query *
 nv50_query_create(struct pipe_context *pipe, unsigned type)
 {
    struct nv50_context *nv50 = nv50_context(pipe);
    struct nv50_query *q;

    q = CALLOC_STRUCT(nv50_query);
    if (!q)
       return NULL;

    if (!nv50_query_allocate(nv50, q, NV50_QUERY_ALLOC_SPACE)) {
       FREE(q);
       return NULL;
    }

    q->is64bit = (type == PIPE_QUERY_PRIMITIVES_GENERATED ||
                  type == PIPE_QUERY_PRIMITIVES_EMITTED ||
                  type == PIPE_QUERY_SO_STATISTICS);
    q->type = type;

    if (q->type == PIPE_QUERY_OCCLUSION_COUNTER) {
       q->offset -= 16;
       q->data -= 16 / sizeof(*q->data); /* we advance before query_begin ! */
    }

    return (struct pipe_query *)q;
 }

 static void
 nv50_query_get(struct nouveau_pushbuf *push, struct nv50_query *q,
                unsigned offset, uint32_t get)
 {
    offset += q->offset;

    PUSH_SPACE(push, 5);
    PUSH_REFN (push, q->bo, NOUVEAU_BO_GART | NOUVEAU_BO_WR);
    BEGIN_NV04(push, NV50_3D(QUERY_ADDRESS_HIGH), 4);
    PUSH_DATAh(push, q->bo->offset + offset);
    PUSH_DATA (push, q->bo->offset + offset);
    PUSH_DATA (push, q->sequence);
    PUSH_DATA (push, get);
 }

 static void
 nv50_query_begin(struct pipe_context *pipe, struct pipe_query *pq)
 {
    struct nv50_context *nv50 = nv50_context(pipe);
    struct nouveau_pushbuf *push = nv50->base.pushbuf;
    struct nv50_query *q = nv50_query(pq);

    /* For occlusion queries we have to change the storage, because a previous
     * query might set the initial render conition to FALSE even *after* we re-
     * initialized it to TRUE.
     */
    if (q->type == PIPE_QUERY_OCCLUSION_COUNTER) {
       q->offset += 16;
       q->data += 16 / sizeof(*q->data);
       if (q->offset - q->base == NV50_QUERY_ALLOC_SPACE)
          nv50_query_allocate(nv50, q, NV50_QUERY_ALLOC_SPACE);

       /* XXX: can we do this with the GPU, and sync with respect to a previous
        *  query ?
        */
       q->data[1] = 1; /* initial render condition = TRUE */
    }
    if (!q->is64bit)
       q->data[0] = q->sequence++; /* the previously used one */

    switch (q->type) {
    case PIPE_QUERY_OCCLUSION_COUNTER:
       PUSH_SPACE(push, 4);
       BEGIN_NV04(push, NV50_3D(COUNTER_RESET), 1);
       PUSH_DATA (push, NV50_3D_COUNTER_RESET_SAMPLECNT);
       BEGIN_NV04(push, NV50_3D(SAMPLECNT_ENABLE), 1);
       PUSH_DATA (push, 1);
       break;
    case PIPE_QUERY_PRIMITIVES_GENERATED:
       nv50_query_get(push, q, 0x10, 0x06805002);
       break;
    case PIPE_QUERY_PRIMITIVES_EMITTED:
       nv50_query_get(push, q, 0x10, 0x05805002);
       break;
    case PIPE_QUERY_SO_STATISTICS:
       nv50_query_get(push, q, 0x20, 0x05805002);
       nv50_query_get(push, q, 0x30, 0x06805002);
       break;
    case PIPE_QUERY_TIMESTAMP_DISJOINT:
    case PIPE_QUERY_TIME_ELAPSED:
       nv50_query_get(push, q, 0x10, 0x00005002);
       break;
    default:
       break;
    }
    q->ready = FALSE;
 }

 static void
 nv50_query_end(struct pipe_context *pipe, struct pipe_query *pq)
 {
    struct nv50_context *nv50 = nv50_context(pipe);
    struct nouveau_pushbuf *push = nv50->base.pushbuf;
    struct nv50_query *q = nv50_query(pq);

    switch (q->type) {
    case PIPE_QUERY_OCCLUSION_COUNTER:
       nv50_query_get(push, q, 0, 0x0100f002);
       PUSH_SPACE(push, 2);
       BEGIN_NV04(push, NV50_3D(SAMPLECNT_ENABLE), 1);
       PUSH_DATA (push, 0);
       break;
    case PIPE_QUERY_PRIMITIVES_GENERATED:
       nv50_query_get(push, q, 0, 0x06805002);
       break;
    case PIPE_QUERY_PRIMITIVES_EMITTED:
       nv50_query_get(push, q, 0, 0x05805002);
       break;
    case PIPE_QUERY_SO_STATISTICS:
       nv50_query_get(push, q, 0x00, 0x05805002);
       nv50_query_get(push, q, 0x10, 0x06805002);
       break;
    case PIPE_QUERY_TIMESTAMP:
       q->sequence++;
       /* fall through */
    case PIPE_QUERY_TIMESTAMP_DISJOINT:
    case PIPE_QUERY_TIME_ELAPSED:
       nv50_query_get(push, q, 0, 0x00005002);
       break;
    case PIPE_QUERY_GPU_FINISHED:
       q->sequence++;
       nv50_query_get(push, q, 0, 0x1000f010);
       break;
    case NVA0_QUERY_STREAM_OUTPUT_BUFFER_OFFSET:
       nv50_query_get(push, q, 0, 0x0d005002 | (q->index << 5));
       break;
    default:
       assert(0);
       break;
    }
    q->ready = q->flushed = FALSE;
 }

 static INLINE boolean
 nv50_query_ready(struct nv50_query *q)
 {
    return q->ready || (!q->is64bit && (q->data[0] == q->sequence));
 }

 static boolean
 nv50_query_result(struct pipe_context *pipe, struct pipe_query *pq,
                   boolean wait, union pipe_query_result *result)
 {
    struct nv50_context *nv50 = nv50_context(pipe);
    struct nv50_query *q = nv50_query(pq);
    uint64_t *res64 = (uint64_t *)result;
    uint32_t *res32 = (uint32_t *)result;
    boolean *res8 = (boolean *)result;
    uint64_t *data64 = (uint64_t *)q->data;

    if (!q->ready) /* update ? */
       q->ready = nv50_query_ready(q);
    if (!q->ready) {
       if (!wait) {
          /* for broken apps that spin on GL_QUERY_RESULT_AVAILABLE */
          if (!q->flushed) {
             q->flushed = TRUE;
             PUSH_KICK(nv50->base.pushbuf);
          }
          return FALSE;
       }
       if (nouveau_bo_wait(q->bo, NOUVEAU_BO_RD, nv50->screen->base.client))
          return FALSE;
    }
    q->ready = TRUE;

    switch (q->type) {
    case PIPE_QUERY_GPU_FINISHED:
       res8[0] = TRUE;
       break;
    case PIPE_QUERY_OCCLUSION_COUNTER: /* u32 sequence, u32 count, u64 time */
       res64[0] = q->data[1];
       break;
    case PIPE_QUERY_PRIMITIVES_GENERATED: /* u64 count, u64 time */
    case PIPE_QUERY_PRIMITIVES_EMITTED: /* u64 count, u64 time */
       res64[0] = data64[0] - data64[2];
       break;
    case PIPE_QUERY_SO_STATISTICS:
       res64[0] = data64[0] - data64[4];
       res64[1] = data64[2] - data64[6];
       break;
    case PIPE_QUERY_TIMESTAMP:
       res64[0] = data64[1];
       break;
    case PIPE_QUERY_TIMESTAMP_DISJOINT: /* u32 sequence, u32 0, u64 time */
       res64[0] = 1000000000;
       res8[8] = (data64[1] == data64[3]) ? FALSE : TRUE;
       break;
    case PIPE_QUERY_TIME_ELAPSED:
       res64[0] = data64[1] - data64[3];
       break;
    case NVA0_QUERY_STREAM_OUTPUT_BUFFER_OFFSET:
       res32[0] = q->data[1];
       break;
    default:
       return FALSE;
    }

    return TRUE;
 }

 void
 nv84_query_fifo_wait(struct nouveau_pushbuf *push, struct pipe_query *pq)
 {
    struct nv50_query *q = nv50_query(pq);
    unsigned offset = q->offset;

    PUSH_SPACE(push, 5);
    PUSH_REFN (push, q->bo, NOUVEAU_BO_GART | NOUVEAU_BO_RD);
    BEGIN_NV04(push, SUBC_3D(NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH), 4);
    PUSH_DATAh(push, q->bo->offset + offset);
    PUSH_DATA (push, q->bo->offset + offset);
    PUSH_DATA (push, q->sequence);
    PUSH_DATA (push, NV84_SUBCHAN_SEMAPHORE_TRIGGER_ACQUIRE_EQUAL);
 }

 static void
 nv50_render_condition(struct pipe_context *pipe,
                       struct pipe_query *pq, uint mode)
 {
    struct nv50_context *nv50 = nv50_context(pipe);
    struct nouveau_pushbuf *push = nv50->base.pushbuf;
    struct nv50_query *q;

    PUSH_SPACE(push, 6);

    if (!pq) {
       BEGIN_NV04(push, NV50_3D(COND_MODE), 1);
       PUSH_DATA (push, NV50_3D_COND_MODE_ALWAYS);
       return;
    }
    q = nv50_query(pq);

    if (mode == PIPE_RENDER_COND_WAIT ||
        mode == PIPE_RENDER_COND_BY_REGION_WAIT) {
       BEGIN_NV04(push, SUBC_3D(NV50_GRAPH_SERIALIZE), 1);
       PUSH_DATA (push, 0);
    }

    BEGIN_NV04(push, NV50_3D(COND_ADDRESS_HIGH), 3);
    PUSH_DATAh(push, q->bo->offset + q->offset);
    PUSH_DATA (push, q->bo->offset + q->offset);
    PUSH_DATA (push, NV50_3D_COND_MODE_RES_NON_ZERO);
 }

 void
 nv50_query_pushbuf_submit(struct nouveau_pushbuf *push,
                           struct pipe_query *pq, unsigned result_offset)
 {
    struct nv50_query *q = nv50_query(pq);

    /* XXX: does this exist ? */
 #define NV50_IB_ENTRY_1_NO_PREFETCH (0 << (31 - 8))

    nouveau_pushbuf_space(push, 0, 0, 1);
    nouveau_pushbuf_data(push, q->bo, q->offset + result_offset, 4 |
                         NV50_IB_ENTRY_1_NO_PREFETCH);
 }

 void
 nva0_so_target_save_offset(struct pipe_context *pipe,
                            struct pipe_stream_output_target *ptarg,
                            unsigned index, boolean serialize)
 {
    struct nv50_so_target *targ = nv50_so_target(ptarg);

    if (serialize) {
       struct nouveau_pushbuf *push = nv50_context(pipe)->base.pushbuf;
       PUSH_SPACE(push, 2);
       BEGIN_NV04(push, SUBC_3D(NV50_GRAPH_SERIALIZE), 1);
       PUSH_DATA (push, 0);
    }

    nv50_query(targ->pq)->index = index;
    nv50_query_end(pipe, targ->pq);
 }

 void
 nv50_init_query_functions(struct nv50_context *nv50)
 {
    struct pipe_context *pipe = &nv50->base.pipe;

    pipe->create_query = nv50_query_create;
    pipe->destroy_query = nv50_query_destroy;
    pipe->begin_query = nv50_query_begin;
    pipe->end_query = nv50_query_end;
    pipe->get_query_result = nv50_query_result;
    pipe->render_condition = nv50_render_condition;
 }
	/*
	* Copyright 2011 Nouveau Project
	*
	* 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
	* the rights to use, copy, modify, merge, publish, distribute, sublicense,
	* 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 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 NONINFRINGEMENT. IN NO EVENT SHALL
	* THE AUTHORS 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.
	*
	* Authors: Christoph Bumiller
	*/

	#define NV50_PUSH_EXPLICIT_SPACE_CHECKING

	#include "nv50_context.h"
	#include "nouveau/nv_object.xml.h"

	/* XXX: Nested queries, and simultaneous queries on multiple gallium contexts
	* (since we use only a single GPU channel per screen) will not work properly.
	*
	* The first is not that big of an issue because OpenGL does not allow nested
	* queries anyway.
	*/

	struct nv50_query {
	uint32_t *data;
	uint16_t type;
	uint16_t index;
	uint32_t sequence;
	struct nouveau_bo *bo;
	uint32_t base;
	uint32_t offset; /* base + i * 16 */
	boolean ready;
	boolean flushed;
	boolean is64bit;
	struct nouveau_mm_allocation *mm;
	};

	#define NV50_QUERY_ALLOC_SPACE 128

	static INLINE struct nv50_query *
	nv50_query(struct pipe_query *pipe)
	{
	return (struct nv50_query *)pipe;
	}

	static boolean
	nv50_query_allocate(struct nv50_context nv50, struct nv50_query q, int size)
	{
	struct nv50_screen *screen = nv50->screen;
	int ret;

	if (q->bo) {
	nouveau_bo_ref(NULL, &q->bo);
	if (q->mm) {
	if (q->ready)
	nouveau_mm_free(q->mm);
	else
	nouveau_fence_work(screen->base.fence.current, nouveau_mm_free_work,
	q->mm);
	}
	}
	if (size) {
	q->mm = nouveau_mm_allocate(screen->base.mm_GART, size, &q->bo, &q->base);
	if (!q->bo)
	return FALSE;
	q->offset = q->base;

	ret = nouveau_bo_map(q->bo, 0, screen->base.client);
	if (ret) {
	nv50_query_allocate(nv50, q, 0);
	return FALSE;
	}
	q->data = (uint32_t )((uint8_t )q->bo->map + q->base);
	}
	return TRUE;
	}

	static void
	nv50_query_destroy(struct pipe_context pipe, struct pipe_query pq)
	{
	nv50_query_allocate(nv50_context(pipe), nv50_query(pq), 0);
	FREE(nv50_query(pq));
	}

	static struct pipe_query *
	nv50_query_create(struct pipe_context *pipe, unsigned type)
	{
	struct nv50_context *nv50 = nv50_context(pipe);
	struct nv50_query *q;

	q = CALLOC_STRUCT(nv50_query);
	if (!q)
	return NULL;

	if (!nv50_query_allocate(nv50, q, NV50_QUERY_ALLOC_SPACE)) {
	FREE(q);
	return NULL;
	}

	q->is64bit = (type == PIPE_QUERY_PRIMITIVES_GENERATED \|\|
	type == PIPE_QUERY_PRIMITIVES_EMITTED \|\|
	type == PIPE_QUERY_SO_STATISTICS);
	q->type = type;

	if (q->type == PIPE_QUERY_OCCLUSION_COUNTER) {
	q->offset -= 16;
	q->data -= 16 / sizeof(q->data); / we advance before query_begin ! */
	}

	return (struct pipe_query *)q;
	}

	static void
	nv50_query_get(struct nouveau_pushbuf push, struct nv50_query q,
	unsigned offset, uint32_t get)
	{
	offset += q->offset;

	PUSH_SPACE(push, 5);
	PUSH_REFN (push, q->bo, NOUVEAU_BO_GART \| NOUVEAU_BO_WR);
	BEGIN_NV04(push, NV50_3D(QUERY_ADDRESS_HIGH), 4);
	PUSH_DATAh(push, q->bo->offset + offset);
	PUSH_DATA (push, q->bo->offset + offset);
	PUSH_DATA (push, q->sequence);
	PUSH_DATA (push, get);
	}

	static void
	nv50_query_begin(struct pipe_context pipe, struct pipe_query pq)
	{
	struct nv50_context *nv50 = nv50_context(pipe);
	struct nouveau_pushbuf *push = nv50->base.pushbuf;
	struct nv50_query *q = nv50_query(pq);

	/* For occlusion queries we have to change the storage, because a previous
	* query might set the initial render conition to FALSE even after we re-
	* initialized it to TRUE.
	*/
	if (q->type == PIPE_QUERY_OCCLUSION_COUNTER) {
	q->offset += 16;
	q->data += 16 / sizeof(*q->data);
	if (q->offset - q->base == NV50_QUERY_ALLOC_SPACE)
	nv50_query_allocate(nv50, q, NV50_QUERY_ALLOC_SPACE);

	/* XXX: can we do this with the GPU, and sync with respect to a previous
	* query ?
	*/
	q->data[1] = 1; /* initial render condition = TRUE */
	}
	if (!q->is64bit)
	q->data[0] = q->sequence++; /* the previously used one */

	switch (q->type) {
	case PIPE_QUERY_OCCLUSION_COUNTER:
	PUSH_SPACE(push, 4);
	BEGIN_NV04(push, NV50_3D(COUNTER_RESET), 1);
	PUSH_DATA (push, NV50_3D_COUNTER_RESET_SAMPLECNT);
	BEGIN_NV04(push, NV50_3D(SAMPLECNT_ENABLE), 1);
	PUSH_DATA (push, 1);
	break;
	case PIPE_QUERY_PRIMITIVES_GENERATED:
	nv50_query_get(push, q, 0x10, 0x06805002);
	break;
	case PIPE_QUERY_PRIMITIVES_EMITTED:
	nv50_query_get(push, q, 0x10, 0x05805002);
	break;
	case PIPE_QUERY_SO_STATISTICS:
	nv50_query_get(push, q, 0x20, 0x05805002);
	nv50_query_get(push, q, 0x30, 0x06805002);
	break;
	case PIPE_QUERY_TIMESTAMP_DISJOINT:
	case PIPE_QUERY_TIME_ELAPSED:
	nv50_query_get(push, q, 0x10, 0x00005002);
	break;
	default:
	break;
	}
	q->ready = FALSE;
	}

	static void
	nv50_query_end(struct pipe_context pipe, struct pipe_query pq)
	{
	struct nv50_context *nv50 = nv50_context(pipe);
	struct nouveau_pushbuf *push = nv50->base.pushbuf;
	struct nv50_query *q = nv50_query(pq);

	switch (q->type) {
	case PIPE_QUERY_OCCLUSION_COUNTER:
	nv50_query_get(push, q, 0, 0x0100f002);
	PUSH_SPACE(push, 2);
	BEGIN_NV04(push, NV50_3D(SAMPLECNT_ENABLE), 1);
	PUSH_DATA (push, 0);
	break;
	case PIPE_QUERY_PRIMITIVES_GENERATED:
	nv50_query_get(push, q, 0, 0x06805002);
	break;
	case PIPE_QUERY_PRIMITIVES_EMITTED:
	nv50_query_get(push, q, 0, 0x05805002);
	break;
	case PIPE_QUERY_SO_STATISTICS:
	nv50_query_get(push, q, 0x00, 0x05805002);
	nv50_query_get(push, q, 0x10, 0x06805002);
	break;
	case PIPE_QUERY_TIMESTAMP:
	q->sequence++;
	/* fall through */
	case PIPE_QUERY_TIMESTAMP_DISJOINT:
	case PIPE_QUERY_TIME_ELAPSED:
	nv50_query_get(push, q, 0, 0x00005002);
	break;
	case PIPE_QUERY_GPU_FINISHED:
	q->sequence++;
	nv50_query_get(push, q, 0, 0x1000f010);
	break;
	case NVA0_QUERY_STREAM_OUTPUT_BUFFER_OFFSET:
	nv50_query_get(push, q, 0, 0x0d005002 \| (q->index << 5));
	break;
	default:
	assert(0);
	break;
	}
	q->ready = q->flushed = FALSE;
	}

	static INLINE boolean
	nv50_query_ready(struct nv50_query *q)
	{
	return q->ready \|\| (!q->is64bit && (q->data[0] == q->sequence));
	}

	static boolean
	nv50_query_result(struct pipe_context pipe, struct pipe_query pq,
	boolean wait, union pipe_query_result *result)
	{
	struct nv50_context *nv50 = nv50_context(pipe);
	struct nv50_query *q = nv50_query(pq);
	uint64_t res64 = (uint64_t )result;
	uint32_t res32 = (uint32_t )result;
	boolean res8 = (boolean )result;
	uint64_t data64 = (uint64_t )q->data;

	if (!q->ready) /* update ? */
	q->ready = nv50_query_ready(q);
	if (!q->ready) {
	if (!wait) {
	/* for broken apps that spin on GL_QUERY_RESULT_AVAILABLE */
	if (!q->flushed) {
	q->flushed = TRUE;
	PUSH_KICK(nv50->base.pushbuf);
	}
	return FALSE;
	}
	if (nouveau_bo_wait(q->bo, NOUVEAU_BO_RD, nv50->screen->base.client))
	return FALSE;
	}
	q->ready = TRUE;

	switch (q->type) {
	case PIPE_QUERY_GPU_FINISHED:
	res8[0] = TRUE;
	break;
	case PIPE_QUERY_OCCLUSION_COUNTER: /* u32 sequence, u32 count, u64 time */
	res64[0] = q->data[1];
	break;
	case PIPE_QUERY_PRIMITIVES_GENERATED: /* u64 count, u64 time */
	case PIPE_QUERY_PRIMITIVES_EMITTED: /* u64 count, u64 time */
	res64[0] = data64[0] - data64[2];
	break;
	case PIPE_QUERY_SO_STATISTICS:
	res64[0] = data64[0] - data64[4];
	res64[1] = data64[2] - data64[6];
	break;
	case PIPE_QUERY_TIMESTAMP:
	res64[0] = data64[1];
	break;
	case PIPE_QUERY_TIMESTAMP_DISJOINT: /* u32 sequence, u32 0, u64 time */
	res64[0] = 1000000000;
	res8[8] = (data64[1] == data64[3]) ? FALSE : TRUE;
	break;
	case PIPE_QUERY_TIME_ELAPSED:
	res64[0] = data64[1] - data64[3];
	break;
	case NVA0_QUERY_STREAM_OUTPUT_BUFFER_OFFSET:
	res32[0] = q->data[1];
	break;
	default:
	return FALSE;
	}

	return TRUE;
	}

	void
	nv84_query_fifo_wait(struct nouveau_pushbuf push, struct pipe_query pq)
	{
	struct nv50_query *q = nv50_query(pq);
	unsigned offset = q->offset;

	PUSH_SPACE(push, 5);
	PUSH_REFN (push, q->bo, NOUVEAU_BO_GART \| NOUVEAU_BO_RD);
	BEGIN_NV04(push, SUBC_3D(NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH), 4);
	PUSH_DATAh(push, q->bo->offset + offset);
	PUSH_DATA (push, q->bo->offset + offset);
	PUSH_DATA (push, q->sequence);
	PUSH_DATA (push, NV84_SUBCHAN_SEMAPHORE_TRIGGER_ACQUIRE_EQUAL);
	}

	static void
	nv50_render_condition(struct pipe_context *pipe,
	struct pipe_query *pq, uint mode)
	{
	struct nv50_context *nv50 = nv50_context(pipe);
	struct nouveau_pushbuf *push = nv50->base.pushbuf;
	struct nv50_query *q;

	PUSH_SPACE(push, 6);

	if (!pq) {
	BEGIN_NV04(push, NV50_3D(COND_MODE), 1);
	PUSH_DATA (push, NV50_3D_COND_MODE_ALWAYS);
	return;
	}
	q = nv50_query(pq);

	if (mode == PIPE_RENDER_COND_WAIT \|\|
	mode == PIPE_RENDER_COND_BY_REGION_WAIT) {
	BEGIN_NV04(push, SUBC_3D(NV50_GRAPH_SERIALIZE), 1);
	PUSH_DATA (push, 0);
	}

	BEGIN_NV04(push, NV50_3D(COND_ADDRESS_HIGH), 3);
	PUSH_DATAh(push, q->bo->offset + q->offset);
	PUSH_DATA (push, q->bo->offset + q->offset);
	PUSH_DATA (push, NV50_3D_COND_MODE_RES_NON_ZERO);
	}

	void
	nv50_query_pushbuf_submit(struct nouveau_pushbuf *push,
	struct pipe_query *pq, unsigned result_offset)
	{
	struct nv50_query *q = nv50_query(pq);

	/* XXX: does this exist ? */
	#define NV50_IB_ENTRY_1_NO_PREFETCH (0 << (31 - 8))

	nouveau_pushbuf_space(push, 0, 0, 1);
	nouveau_pushbuf_data(push, q->bo, q->offset + result_offset, 4 \|
	NV50_IB_ENTRY_1_NO_PREFETCH);
	}

	void
	nva0_so_target_save_offset(struct pipe_context *pipe,
	struct pipe_stream_output_target *ptarg,
	unsigned index, boolean serialize)
	{
	struct nv50_so_target *targ = nv50_so_target(ptarg);

	if (serialize) {
	struct nouveau_pushbuf *push = nv50_context(pipe)->base.pushbuf;
	PUSH_SPACE(push, 2);
	BEGIN_NV04(push, SUBC_3D(NV50_GRAPH_SERIALIZE), 1);
	PUSH_DATA (push, 0);
	}

	nv50_query(targ->pq)->index = index;
	nv50_query_end(pipe, targ->pq);
	}

	void
	nv50_init_query_functions(struct nv50_context *nv50)
	{
	struct pipe_context *pipe = &nv50->base.pipe;

	pipe->create_query = nv50_query_create;
	pipe->destroy_query = nv50_query_destroy;
	pipe->begin_query = nv50_query_begin;
	pipe->end_query = nv50_query_end;
	pipe->get_query_result = nv50_query_result;
	pipe->render_condition = nv50_render_condition;
	}