src/intel/vulkan/anv_measure.c - third_party/mesa - Git at Google

 /*
  * Copyright © 2020 Intel Corporation
  *
  * 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 "anv_measure.h"

 #include <fcntl.h>
 #include <sys/stat.h>
 #include <sys/types.h>

 #include "common/intel_measure.h"
 #include "util/u_debug.h"

 struct anv_measure_batch {
    struct anv_bo *bo;
    struct intel_measure_batch base;
 };

 void
 anv_measure_device_init(struct anv_physical_device *device)
 {
    switch (device->info.verx10) {
    case 125:
       device->cmd_emit_timestamp = &gfx125_cmd_emit_timestamp;
       break;
    case 120:
       device->cmd_emit_timestamp = &gfx12_cmd_emit_timestamp;
       break;
    case 110:
       device->cmd_emit_timestamp = &gfx11_cmd_emit_timestamp;
       break;
    case 90:
       device->cmd_emit_timestamp = &gfx9_cmd_emit_timestamp;
       break;
    default:
       assert(false);
    }

    /* initialise list of measure structures that await rendering */
    struct intel_measure_device *measure_device = &device->measure_device;
    intel_measure_init(measure_device);
    struct intel_measure_config *config = measure_device->config;
    if (config == NULL)
       return;

    /* the final member of intel_measure_ringbuffer is a zero-length array of
     * intel_measure_buffered_result objects.  Allocate additional space for
     * the buffered objects based on the run-time configurable buffer_size
     */
    const size_t rb_bytes = sizeof(struct intel_measure_ringbuffer) +
       config->buffer_size * sizeof(struct intel_measure_buffered_result);
    struct intel_measure_ringbuffer * rb =
       vk_zalloc(&device->instance->vk.alloc,
                 rb_bytes, 8,
                 VK_SYSTEM_ALLOCATION_SCOPE_DEVICE);
    measure_device->ringbuffer = rb;
 }

 static struct intel_measure_config*
 config_from_command_buffer(struct anv_cmd_buffer *cmd_buffer)
 {
    return cmd_buffer->device->physical->measure_device.config;
 }

 void
 anv_measure_init(struct anv_cmd_buffer *cmd_buffer)
 {
    struct intel_measure_config *config = config_from_command_buffer(cmd_buffer);
    struct anv_device *device = cmd_buffer->device;

    if (!config || !config->enabled) {
       cmd_buffer->measure = NULL;
       return;
    }

    /* the final member of anv_measure is a zero-length array of
     * intel_measure_snapshot objects.  Create additional space for the
     * snapshot objects based on the run-time configurable batch_size
     */
    const size_t batch_bytes = sizeof(struct anv_measure_batch) +
       config->batch_size * sizeof(struct intel_measure_snapshot);
    struct anv_measure_batch * measure =
       vk_alloc(&cmd_buffer->vk.pool->alloc,
                batch_bytes, 8,
                VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);

    memset(measure, 0, batch_bytes);
    ASSERTED VkResult result =
       anv_device_alloc_bo(device, "measure data",
                           config->batch_size * sizeof(uint64_t),
                           ANV_BO_ALLOC_MAPPED,
                           0,
                           (struct anv_bo**)&measure->bo);
    measure->base.timestamps = measure->bo->map;
    assert(result == VK_SUCCESS);

    cmd_buffer->measure = measure;
 }

 static void
 anv_measure_start_snapshot(struct anv_cmd_buffer *cmd_buffer,
                            enum intel_measure_snapshot_type type,
                            const char *event_name,
                            uint32_t count)
 {
    struct anv_batch *batch = &cmd_buffer->batch;
    struct anv_measure_batch *measure = cmd_buffer->measure;
    struct anv_physical_device *device = cmd_buffer->device->physical;
    struct intel_measure_device *measure_device = &device->measure_device;

    const unsigned device_frame = measure_device->frame;

    /* if the command buffer is not associated with a frame, associate it with
     * the most recent acquired frame
     */
    if (measure->base.frame == 0)
       measure->base.frame = device_frame;

 //   uintptr_t framebuffer = (uintptr_t)cmd_buffer->state.framebuffer;
 //
 //   if (!measure->base.framebuffer &&
 //       cmd_buffer->vk.level == VK_COMMAND_BUFFER_LEVEL_SECONDARY)
 //      /* secondary command buffer inherited the framebuffer from the primary */
 //      measure->base.framebuffer = framebuffer;
 //
 //   /* verify framebuffer has been properly tracked */
 //   assert(type == INTEL_SNAPSHOT_END ||
 //          framebuffer == measure->base.framebuffer ||
 //          framebuffer == 0 ); /* compute has no framebuffer */

    unsigned index = measure->base.index++;

    (*device->cmd_emit_timestamp)(batch, cmd_buffer->device,
                                  (struct anv_address) {
                                     .bo = measure->bo,
                                     .offset = index * sizeof(uint64_t) },
                                  ANV_TIMESTAMP_CAPTURE_AT_CS_STALL);

    if (event_name == NULL)
       event_name = intel_measure_snapshot_string(type);

    struct intel_measure_snapshot *snapshot = &(measure->base.snapshots[index]);
    memset(snapshot, 0, sizeof(*snapshot));
    snapshot->type = type;
    snapshot->count = (unsigned) count;
    snapshot->event_count = measure->base.event_count;
    snapshot->event_name = event_name;
 //   snapshot->framebuffer = framebuffer;

    if (type == INTEL_SNAPSHOT_COMPUTE && cmd_buffer->state.compute.pipeline) {
       snapshot->cs = (uintptr_t) cmd_buffer->state.compute.pipeline->cs;
    } else if (cmd_buffer->state.gfx.pipeline) {
       const struct anv_graphics_pipeline *pipeline =
          cmd_buffer->state.gfx.pipeline;
       snapshot->vs = (uintptr_t) pipeline->shaders[MESA_SHADER_VERTEX];
       snapshot->tcs = (uintptr_t) pipeline->shaders[MESA_SHADER_TESS_CTRL];
       snapshot->tes = (uintptr_t) pipeline->shaders[MESA_SHADER_TESS_EVAL];
       snapshot->gs = (uintptr_t) pipeline->shaders[MESA_SHADER_GEOMETRY];
       snapshot->fs = (uintptr_t) pipeline->shaders[MESA_SHADER_FRAGMENT];
       snapshot->ms = (uintptr_t) pipeline->shaders[MESA_SHADER_MESH];
       snapshot->ts = (uintptr_t) pipeline->shaders[MESA_SHADER_TASK];
    }
 }

 static void
 anv_measure_end_snapshot(struct anv_cmd_buffer *cmd_buffer,
                          uint32_t event_count)
 {
    struct anv_batch *batch = &cmd_buffer->batch;
    struct anv_measure_batch *measure = cmd_buffer->measure;
    struct anv_physical_device *device = cmd_buffer->device->physical;

    unsigned index = measure->base.index++;
    assert(index % 2 == 1);

    (*device->cmd_emit_timestamp)(batch, cmd_buffer->device,
                                  (struct anv_address) {
                                     .bo = measure->bo,
                                     .offset = index * sizeof(uint64_t) },
                                  ANV_TIMESTAMP_CAPTURE_AT_CS_STALL);

    struct intel_measure_snapshot *snapshot = &(measure->base.snapshots[index]);
    memset(snapshot, 0, sizeof(*snapshot));
    snapshot->type = INTEL_SNAPSHOT_END;
    snapshot->event_count = event_count;
 }

 static bool
 state_changed(struct anv_cmd_buffer *cmd_buffer,
               enum intel_measure_snapshot_type type)
 {
    uintptr_t vs=0, tcs=0, tes=0, gs=0, fs=0, cs=0, ms=0, ts=0;

    if (cmd_buffer->usage_flags & VK_COMMAND_BUFFER_USAGE_SIMULTANEOUS_USE_BIT)
       /* can't record timestamps in this mode */
       return false;

    if (type == INTEL_SNAPSHOT_COMPUTE) {
       const struct anv_compute_pipeline *cs_pipe =
          cmd_buffer->state.compute.pipeline;
       assert(cs_pipe);
       cs = (uintptr_t)cs_pipe->cs;
    } else if (type == INTEL_SNAPSHOT_DRAW) {
       const struct anv_graphics_pipeline *gfx = cmd_buffer->state.gfx.pipeline;
       assert(gfx);
       vs = (uintptr_t) gfx->shaders[MESA_SHADER_VERTEX];
       tcs = (uintptr_t) gfx->shaders[MESA_SHADER_TESS_CTRL];
       tes = (uintptr_t) gfx->shaders[MESA_SHADER_TESS_EVAL];
       gs = (uintptr_t) gfx->shaders[MESA_SHADER_GEOMETRY];
       fs = (uintptr_t) gfx->shaders[MESA_SHADER_FRAGMENT];
       ms = (uintptr_t) gfx->shaders[MESA_SHADER_MESH];
       ts = (uintptr_t) gfx->shaders[MESA_SHADER_TASK];
    }
    /* else blorp, all programs NULL */

    return intel_measure_state_changed(&cmd_buffer->measure->base,
                                       vs, tcs, tes, gs, fs, cs, ms, ts);
 }

 void
 _anv_measure_snapshot(struct anv_cmd_buffer *cmd_buffer,
                      enum intel_measure_snapshot_type type,
                      const char *event_name,
                      uint32_t count)
 {
    struct intel_measure_config *config = config_from_command_buffer(cmd_buffer);
    struct anv_measure_batch *measure = cmd_buffer->measure;

    assert(config);
    if (measure == NULL)
       return;

    assert(type != INTEL_SNAPSHOT_END);
    if (!state_changed(cmd_buffer, type)) {
       /* filter out this event */
       return;
    }

    /* increment event count */
    ++measure->base.event_count;
    if (measure->base.event_count == 1 ||
        measure->base.event_count == config->event_interval + 1) {
       /* the first event of an interval */

       if (measure->base.index % 2) {
          /* end the previous event */
          anv_measure_end_snapshot(cmd_buffer, measure->base.event_count - 1);
       }
       measure->base.event_count = 1;

       if (measure->base.index == config->batch_size) {
          /* Snapshot buffer is full.  The batch must be flushed before
           * additional snapshots can be taken.
           */
          static bool warned = false;
          if (unlikely(!warned)) {
             fprintf(config->file,
                     "WARNING: batch size exceeds INTEL_MEASURE limit: %d. "
                     "Data has been dropped. "
                     "Increase setting with INTEL_MEASURE=batch_size={count}\n",
                     config->batch_size);
          }

          warned = true;
          return;
       }

       anv_measure_start_snapshot(cmd_buffer, type, event_name, count);
    }
 }

 /**
  * Called when a command buffer is reset.  Re-initializes existing anv_measure
  * data structures.
  */
 void
 anv_measure_reset(struct anv_cmd_buffer *cmd_buffer)
 {
    struct intel_measure_config *config = config_from_command_buffer(cmd_buffer);
    struct anv_device *device = cmd_buffer->device;
    struct anv_measure_batch *measure = cmd_buffer->measure;

    if (!config)
       return;

    if (!config->enabled) {
       cmd_buffer->measure = NULL;
       return;
    }

    if (!measure) {
       /* Capture has recently been enabled. Instead of resetting, a new data
        * structure must be allocated and initialized.
        */
       return anv_measure_init(cmd_buffer);
    }

    /* it is possible that the command buffer contains snapshots that have not
     * yet been processed
     */
    intel_measure_gather(&device->physical->measure_device,
                         device->info);

    assert(cmd_buffer->device != NULL);

    measure->base.index = 0;
 //   measure->base.framebuffer = 0;
    measure->base.frame = 0;
    measure->base.event_count = 0;
    list_inithead(&measure->base.link);
 }

 void
 anv_measure_destroy(struct anv_cmd_buffer *cmd_buffer)
 {
    struct intel_measure_config *config = config_from_command_buffer(cmd_buffer);
    struct anv_measure_batch *measure = cmd_buffer->measure;
    struct anv_device *device = cmd_buffer->device;
    struct anv_physical_device *physical = device->physical;

    if (!config)
       return;
    if (measure == NULL)
       return;

    /* it is possible that the command buffer contains snapshots that have not
     * yet been processed
     */
    intel_measure_gather(&physical->measure_device, &physical->info);

    anv_device_release_bo(device, measure->bo);
    vk_free(&cmd_buffer->vk.pool->alloc, measure);
    cmd_buffer->measure = NULL;
 }

 static struct intel_measure_config*
 config_from_device(struct anv_device *device)
 {
    return device->physical->measure_device.config;
 }

 void
 anv_measure_device_destroy(struct anv_physical_device *device)
 {
    struct intel_measure_device *measure_device = &device->measure_device;
    struct intel_measure_config *config = measure_device->config;

    if (!config)
       return;

    if (measure_device->ringbuffer != NULL) {
       vk_free(&device->instance->vk.alloc, measure_device->ringbuffer);
       measure_device->ringbuffer = NULL;
    }
 }

 /**
  *  Hook for command buffer submission.
  */
 void
 _anv_measure_submit(struct anv_cmd_buffer *cmd_buffer)
 {
    struct intel_measure_config *config = config_from_command_buffer(cmd_buffer);
    struct anv_measure_batch *measure = cmd_buffer->measure;
    struct intel_measure_device *measure_device = &cmd_buffer->device->physical->measure_device;

    if (!config)
       return;
    if (measure == NULL)
       return;

    struct intel_measure_batch *base = &measure->base;
    if (base->index == 0)
       /* no snapshots were started */
       return;

    /* finalize snapshots and enqueue them */
    static unsigned cmd_buffer_count = 0;
    base->batch_count = p_atomic_inc_return(&cmd_buffer_count);

    if (base->index %2 == 1) {
       anv_measure_end_snapshot(cmd_buffer, base->event_count);
       base->event_count = 0;
    }

    /* Mark the final timestamp as 'not completed'.  This marker will be used
     * to verify that rendering is complete.
     */
    base->timestamps[base->index - 1] = 0;

    /* add to the list of submitted snapshots */
    pthread_mutex_lock(&measure_device->mutex);
    list_addtail(&measure->base.link, &measure_device->queued_snapshots);
    pthread_mutex_unlock(&measure_device->mutex);
 }

 /**
  *  Hook for the start of a frame.
  */
 void
 _anv_measure_acquire(struct anv_device *device)
 {
    struct intel_measure_config *config = config_from_device(device);
    struct intel_measure_device *measure_device = &device->physical->measure_device;

    if (!config)
       return;
    if (measure_device == NULL)
       return;

    intel_measure_frame_transition(p_atomic_inc_return(&measure_device->frame));

    /* iterate the queued snapshots and publish those that finished */
    intel_measure_gather(measure_device, &device->physical->info);
 }

 void
 _anv_measure_endcommandbuffer(struct anv_cmd_buffer *cmd_buffer)
 {
    struct intel_measure_config *config = config_from_command_buffer(cmd_buffer);
    struct anv_measure_batch *measure = cmd_buffer->measure;

    if (!config)
       return;
    if (measure == NULL)
       return;
    if (measure->base.index % 2 == 0)
       return;

    anv_measure_end_snapshot(cmd_buffer, measure->base.event_count);
    measure->base.event_count = 0;
 }

 void
 _anv_measure_beginrenderpass(struct anv_cmd_buffer *cmd_buffer)
 {
    struct intel_measure_config *config = config_from_command_buffer(cmd_buffer);
    struct anv_measure_batch *measure = cmd_buffer->measure;

    if (!config)
       return;
    if (measure == NULL)
       return;

 //   if (measure->base.framebuffer == (uintptr_t) cmd_buffer->state.framebuffer)
 //      /* no change */
 //      return;

    bool filtering = (config->flags & (INTEL_MEASURE_RENDERPASS |
                                       INTEL_MEASURE_SHADER));
    if (filtering && measure->base.index % 2 == 1) {
       /* snapshot for previous renderpass was not ended */
       anv_measure_end_snapshot(cmd_buffer,
                                measure->base.event_count);
       measure->base.event_count = 0;
    }

 //   measure->base.framebuffer = (uintptr_t) cmd_buffer->state.framebuffer;
 }

 void
 _anv_measure_add_secondary(struct anv_cmd_buffer *primary,
                            struct anv_cmd_buffer *secondary)
 {
    struct intel_measure_config *config = config_from_command_buffer(primary);
    struct anv_measure_batch *measure = primary->measure;
    if (!config)
       return;
    if (measure == NULL)
       return;
    if (config->flags & (INTEL_MEASURE_BATCH | INTEL_MEASURE_FRAME))
       /* secondary timing will be contained within the primary */
       return;
    if (secondary->usage_flags & VK_COMMAND_BUFFER_USAGE_SIMULTANEOUS_USE_BIT) {
          static bool warned = false;
          if (unlikely(!warned)) {
             fprintf(config->file,
                     "WARNING: INTEL_MEASURE cannot capture timings of commands "
                     "in secondary command buffers with "
                     "VK_COMMAND_BUFFER_USAGE_SIMULTANEOUS_USE_BIT set.\n");
          }
       return;
    }

    if (measure->base.index % 2 == 1)
       anv_measure_end_snapshot(primary, measure->base.event_count);

    struct intel_measure_snapshot *snapshot = &(measure->base.snapshots[measure->base.index]);
    _anv_measure_snapshot(primary, INTEL_SNAPSHOT_SECONDARY_BATCH, NULL, 0);

    snapshot->secondary = &secondary->measure->base;
 }
	/*
	* Copyright © 2020 Intel Corporation
	*
	* 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 "anv_measure.h"

	#include <fcntl.h>
	#include <sys/stat.h>
	#include <sys/types.h>

	#include "common/intel_measure.h"
	#include "util/u_debug.h"

	struct anv_measure_batch {
	struct anv_bo *bo;
	struct intel_measure_batch base;
	};

	void
	anv_measure_device_init(struct anv_physical_device *device)
	{
	switch (device->info.verx10) {
	case 125:
	device->cmd_emit_timestamp = &gfx125_cmd_emit_timestamp;
	break;
	case 120:
	device->cmd_emit_timestamp = &gfx12_cmd_emit_timestamp;
	break;
	case 110:
	device->cmd_emit_timestamp = &gfx11_cmd_emit_timestamp;
	break;
	case 90:
	device->cmd_emit_timestamp = &gfx9_cmd_emit_timestamp;
	break;
	default:
	assert(false);
	}

	/* initialise list of measure structures that await rendering */
	struct intel_measure_device *measure_device = &device->measure_device;
	intel_measure_init(measure_device);
	struct intel_measure_config *config = measure_device->config;
	if (config == NULL)
	return;

	/* the final member of intel_measure_ringbuffer is a zero-length array of
	* intel_measure_buffered_result objects. Allocate additional space for
	* the buffered objects based on the run-time configurable buffer_size
	*/
	const size_t rb_bytes = sizeof(struct intel_measure_ringbuffer) +
	config->buffer_size * sizeof(struct intel_measure_buffered_result);
	struct intel_measure_ringbuffer * rb =
	vk_zalloc(&device->instance->vk.alloc,
	rb_bytes, 8,
	VK_SYSTEM_ALLOCATION_SCOPE_DEVICE);
	measure_device->ringbuffer = rb;
	}

	static struct intel_measure_config*
	config_from_command_buffer(struct anv_cmd_buffer *cmd_buffer)
	{
	return cmd_buffer->device->physical->measure_device.config;
	}

	void
	anv_measure_init(struct anv_cmd_buffer *cmd_buffer)
	{
	struct intel_measure_config *config = config_from_command_buffer(cmd_buffer);
	struct anv_device *device = cmd_buffer->device;

	if (!config \|\| !config->enabled) {
	cmd_buffer->measure = NULL;
	return;
	}

	/* the final member of anv_measure is a zero-length array of
	* intel_measure_snapshot objects. Create additional space for the
	* snapshot objects based on the run-time configurable batch_size
	*/
	const size_t batch_bytes = sizeof(struct anv_measure_batch) +
	config->batch_size * sizeof(struct intel_measure_snapshot);
	struct anv_measure_batch * measure =
	vk_alloc(&cmd_buffer->vk.pool->alloc,
	batch_bytes, 8,
	VK_SYSTEM_ALLOCATION_SCOPE_OBJECT);

	memset(measure, 0, batch_bytes);
	ASSERTED VkResult result =
	anv_device_alloc_bo(device, "measure data",
	config->batch_size * sizeof(uint64_t),
	ANV_BO_ALLOC_MAPPED,
	0,
	(struct anv_bo**)&measure->bo);
	measure->base.timestamps = measure->bo->map;
	assert(result == VK_SUCCESS);

	cmd_buffer->measure = measure;
	}

	static void
	anv_measure_start_snapshot(struct anv_cmd_buffer *cmd_buffer,
	enum intel_measure_snapshot_type type,
	const char *event_name,
	uint32_t count)
	{
	struct anv_batch *batch = &cmd_buffer->batch;
	struct anv_measure_batch *measure = cmd_buffer->measure;
	struct anv_physical_device *device = cmd_buffer->device->physical;
	struct intel_measure_device *measure_device = &device->measure_device;

	const unsigned device_frame = measure_device->frame;

	/* if the command buffer is not associated with a frame, associate it with
	* the most recent acquired frame
	*/
	if (measure->base.frame == 0)
	measure->base.frame = device_frame;

	// uintptr_t framebuffer = (uintptr_t)cmd_buffer->state.framebuffer;
	//
	// if (!measure->base.framebuffer &&
	// cmd_buffer->vk.level == VK_COMMAND_BUFFER_LEVEL_SECONDARY)
	// /* secondary command buffer inherited the framebuffer from the primary */
	// measure->base.framebuffer = framebuffer;
	//
	// /* verify framebuffer has been properly tracked */
	// assert(type == INTEL_SNAPSHOT_END \|\|
	// framebuffer == measure->base.framebuffer \|\|
	// framebuffer == 0 ); /* compute has no framebuffer */

	unsigned index = measure->base.index++;

	(*device->cmd_emit_timestamp)(batch, cmd_buffer->device,
	(struct anv_address) {
	.bo = measure->bo,
	.offset = index * sizeof(uint64_t) },
	ANV_TIMESTAMP_CAPTURE_AT_CS_STALL);

	if (event_name == NULL)
	event_name = intel_measure_snapshot_string(type);

	struct intel_measure_snapshot *snapshot = &(measure->base.snapshots[index]);
	memset(snapshot, 0, sizeof(*snapshot));
	snapshot->type = type;
	snapshot->count = (unsigned) count;
	snapshot->event_count = measure->base.event_count;
	snapshot->event_name = event_name;
	// snapshot->framebuffer = framebuffer;

	if (type == INTEL_SNAPSHOT_COMPUTE && cmd_buffer->state.compute.pipeline) {
	snapshot->cs = (uintptr_t) cmd_buffer->state.compute.pipeline->cs;
	} else if (cmd_buffer->state.gfx.pipeline) {
	const struct anv_graphics_pipeline *pipeline =
	cmd_buffer->state.gfx.pipeline;
	snapshot->vs = (uintptr_t) pipeline->shaders[MESA_SHADER_VERTEX];
	snapshot->tcs = (uintptr_t) pipeline->shaders[MESA_SHADER_TESS_CTRL];
	snapshot->tes = (uintptr_t) pipeline->shaders[MESA_SHADER_TESS_EVAL];
	snapshot->gs = (uintptr_t) pipeline->shaders[MESA_SHADER_GEOMETRY];
	snapshot->fs = (uintptr_t) pipeline->shaders[MESA_SHADER_FRAGMENT];
	snapshot->ms = (uintptr_t) pipeline->shaders[MESA_SHADER_MESH];
	snapshot->ts = (uintptr_t) pipeline->shaders[MESA_SHADER_TASK];
	}
	}

	static void
	anv_measure_end_snapshot(struct anv_cmd_buffer *cmd_buffer,
	uint32_t event_count)
	{
	struct anv_batch *batch = &cmd_buffer->batch;
	struct anv_measure_batch *measure = cmd_buffer->measure;
	struct anv_physical_device *device = cmd_buffer->device->physical;

	unsigned index = measure->base.index++;
	assert(index % 2 == 1);

	(*device->cmd_emit_timestamp)(batch, cmd_buffer->device,
	(struct anv_address) {
	.bo = measure->bo,
	.offset = index * sizeof(uint64_t) },
	ANV_TIMESTAMP_CAPTURE_AT_CS_STALL);

	struct intel_measure_snapshot *snapshot = &(measure->base.snapshots[index]);
	memset(snapshot, 0, sizeof(*snapshot));
	snapshot->type = INTEL_SNAPSHOT_END;
	snapshot->event_count = event_count;
	}

	static bool
	state_changed(struct anv_cmd_buffer *cmd_buffer,
	enum intel_measure_snapshot_type type)
	{
	uintptr_t vs=0, tcs=0, tes=0, gs=0, fs=0, cs=0, ms=0, ts=0;

	if (cmd_buffer->usage_flags & VK_COMMAND_BUFFER_USAGE_SIMULTANEOUS_USE_BIT)
	/* can't record timestamps in this mode */
	return false;

	if (type == INTEL_SNAPSHOT_COMPUTE) {
	const struct anv_compute_pipeline *cs_pipe =
	cmd_buffer->state.compute.pipeline;
	assert(cs_pipe);
	cs = (uintptr_t)cs_pipe->cs;
	} else if (type == INTEL_SNAPSHOT_DRAW) {
	const struct anv_graphics_pipeline *gfx = cmd_buffer->state.gfx.pipeline;
	assert(gfx);
	vs = (uintptr_t) gfx->shaders[MESA_SHADER_VERTEX];
	tcs = (uintptr_t) gfx->shaders[MESA_SHADER_TESS_CTRL];
	tes = (uintptr_t) gfx->shaders[MESA_SHADER_TESS_EVAL];
	gs = (uintptr_t) gfx->shaders[MESA_SHADER_GEOMETRY];
	fs = (uintptr_t) gfx->shaders[MESA_SHADER_FRAGMENT];
	ms = (uintptr_t) gfx->shaders[MESA_SHADER_MESH];
	ts = (uintptr_t) gfx->shaders[MESA_SHADER_TASK];
	}
	/* else blorp, all programs NULL */

	return intel_measure_state_changed(&cmd_buffer->measure->base,
	vs, tcs, tes, gs, fs, cs, ms, ts);
	}

	void
	_anv_measure_snapshot(struct anv_cmd_buffer *cmd_buffer,
	enum intel_measure_snapshot_type type,
	const char *event_name,
	uint32_t count)
	{
	struct intel_measure_config *config = config_from_command_buffer(cmd_buffer);
	struct anv_measure_batch *measure = cmd_buffer->measure;

	assert(config);
	if (measure == NULL)
	return;

	assert(type != INTEL_SNAPSHOT_END);
	if (!state_changed(cmd_buffer, type)) {
	/* filter out this event */
	return;
	}

	/* increment event count */
	++measure->base.event_count;
	if (measure->base.event_count == 1 \|\|
	measure->base.event_count == config->event_interval + 1) {
	/* the first event of an interval */

	if (measure->base.index % 2) {
	/* end the previous event */
	anv_measure_end_snapshot(cmd_buffer, measure->base.event_count - 1);
	}
	measure->base.event_count = 1;

	if (measure->base.index == config->batch_size) {
	/* Snapshot buffer is full. The batch must be flushed before
	* additional snapshots can be taken.
	*/
	static bool warned = false;
	if (unlikely(!warned)) {
	fprintf(config->file,
	"WARNING: batch size exceeds INTEL_MEASURE limit: %d. "
	"Data has been dropped. "
	"Increase setting with INTEL_MEASURE=batch_size={count}\n",
	config->batch_size);
	}

	warned = true;
	return;
	}

	anv_measure_start_snapshot(cmd_buffer, type, event_name, count);
	}
	}

	/**
	* Called when a command buffer is reset. Re-initializes existing anv_measure
	* data structures.
	*/
	void
	anv_measure_reset(struct anv_cmd_buffer *cmd_buffer)
	{
	struct intel_measure_config *config = config_from_command_buffer(cmd_buffer);
	struct anv_device *device = cmd_buffer->device;
	struct anv_measure_batch *measure = cmd_buffer->measure;

	if (!config)
	return;

	if (!config->enabled) {
	cmd_buffer->measure = NULL;
	return;
	}

	if (!measure) {
	/* Capture has recently been enabled. Instead of resetting, a new data
	* structure must be allocated and initialized.
	*/
	return anv_measure_init(cmd_buffer);
	}

	/* it is possible that the command buffer contains snapshots that have not
	* yet been processed
	*/
	intel_measure_gather(&device->physical->measure_device,
	device->info);

	assert(cmd_buffer->device != NULL);

	measure->base.index = 0;
	// measure->base.framebuffer = 0;
	measure->base.frame = 0;
	measure->base.event_count = 0;
	list_inithead(&measure->base.link);
	}

	void
	anv_measure_destroy(struct anv_cmd_buffer *cmd_buffer)
	{
	struct intel_measure_config *config = config_from_command_buffer(cmd_buffer);
	struct anv_measure_batch *measure = cmd_buffer->measure;
	struct anv_device *device = cmd_buffer->device;
	struct anv_physical_device *physical = device->physical;

	if (!config)
	return;
	if (measure == NULL)
	return;

	/* it is possible that the command buffer contains snapshots that have not
	* yet been processed
	*/
	intel_measure_gather(&physical->measure_device, &physical->info);

	anv_device_release_bo(device, measure->bo);
	vk_free(&cmd_buffer->vk.pool->alloc, measure);
	cmd_buffer->measure = NULL;
	}

	static struct intel_measure_config*
	config_from_device(struct anv_device *device)
	{
	return device->physical->measure_device.config;
	}

	void
	anv_measure_device_destroy(struct anv_physical_device *device)
	{
	struct intel_measure_device *measure_device = &device->measure_device;
	struct intel_measure_config *config = measure_device->config;

	if (!config)
	return;

	if (measure_device->ringbuffer != NULL) {
	vk_free(&device->instance->vk.alloc, measure_device->ringbuffer);
	measure_device->ringbuffer = NULL;
	}
	}

	/**
	* Hook for command buffer submission.
	*/
	void
	_anv_measure_submit(struct anv_cmd_buffer *cmd_buffer)
	{
	struct intel_measure_config *config = config_from_command_buffer(cmd_buffer);
	struct anv_measure_batch *measure = cmd_buffer->measure;
	struct intel_measure_device *measure_device = &cmd_buffer->device->physical->measure_device;

	if (!config)
	return;
	if (measure == NULL)
	return;

	struct intel_measure_batch *base = &measure->base;
	if (base->index == 0)
	/* no snapshots were started */
	return;

	/* finalize snapshots and enqueue them */
	static unsigned cmd_buffer_count = 0;
	base->batch_count = p_atomic_inc_return(&cmd_buffer_count);

	if (base->index %2 == 1) {
	anv_measure_end_snapshot(cmd_buffer, base->event_count);
	base->event_count = 0;
	}

	/* Mark the final timestamp as 'not completed'. This marker will be used
	* to verify that rendering is complete.
	*/
	base->timestamps[base->index - 1] = 0;

	/* add to the list of submitted snapshots */
	pthread_mutex_lock(&measure_device->mutex);
	list_addtail(&measure->base.link, &measure_device->queued_snapshots);
	pthread_mutex_unlock(&measure_device->mutex);
	}

	/**
	* Hook for the start of a frame.
	*/
	void
	_anv_measure_acquire(struct anv_device *device)
	{
	struct intel_measure_config *config = config_from_device(device);
	struct intel_measure_device *measure_device = &device->physical->measure_device;

	if (!config)
	return;
	if (measure_device == NULL)
	return;

	intel_measure_frame_transition(p_atomic_inc_return(&measure_device->frame));

	/* iterate the queued snapshots and publish those that finished */
	intel_measure_gather(measure_device, &device->physical->info);
	}

	void
	_anv_measure_endcommandbuffer(struct anv_cmd_buffer *cmd_buffer)
	{
	struct intel_measure_config *config = config_from_command_buffer(cmd_buffer);
	struct anv_measure_batch *measure = cmd_buffer->measure;

	if (!config)
	return;
	if (measure == NULL)
	return;
	if (measure->base.index % 2 == 0)
	return;

	anv_measure_end_snapshot(cmd_buffer, measure->base.event_count);
	measure->base.event_count = 0;
	}

	void
	_anv_measure_beginrenderpass(struct anv_cmd_buffer *cmd_buffer)
	{
	struct intel_measure_config *config = config_from_command_buffer(cmd_buffer);
	struct anv_measure_batch *measure = cmd_buffer->measure;

	if (!config)
	return;
	if (measure == NULL)
	return;

	// if (measure->base.framebuffer == (uintptr_t) cmd_buffer->state.framebuffer)
	// /* no change */
	// return;

	bool filtering = (config->flags & (INTEL_MEASURE_RENDERPASS \|
	INTEL_MEASURE_SHADER));
	if (filtering && measure->base.index % 2 == 1) {
	/* snapshot for previous renderpass was not ended */
	anv_measure_end_snapshot(cmd_buffer,
	measure->base.event_count);
	measure->base.event_count = 0;
	}

	// measure->base.framebuffer = (uintptr_t) cmd_buffer->state.framebuffer;
	}

	void
	_anv_measure_add_secondary(struct anv_cmd_buffer *primary,
	struct anv_cmd_buffer *secondary)
	{
	struct intel_measure_config *config = config_from_command_buffer(primary);
	struct anv_measure_batch *measure = primary->measure;
	if (!config)
	return;
	if (measure == NULL)
	return;
	if (config->flags & (INTEL_MEASURE_BATCH \| INTEL_MEASURE_FRAME))
	/* secondary timing will be contained within the primary */
	return;
	if (secondary->usage_flags & VK_COMMAND_BUFFER_USAGE_SIMULTANEOUS_USE_BIT) {
	static bool warned = false;
	if (unlikely(!warned)) {
	fprintf(config->file,
	"WARNING: INTEL_MEASURE cannot capture timings of commands "
	"in secondary command buffers with "
	"VK_COMMAND_BUFFER_USAGE_SIMULTANEOUS_USE_BIT set.\n");
	}
	return;
	}

	if (measure->base.index % 2 == 1)
	anv_measure_end_snapshot(primary, measure->base.event_count);

	struct intel_measure_snapshot *snapshot = &(measure->base.snapshots[measure->base.index]);
	_anv_measure_snapshot(primary, INTEL_SNAPSHOT_SECONDARY_BATCH, NULL, 0);

	snapshot->secondary = &secondary->measure->base;
	}