/*

 * Copyright (C) 2015 Etnaviv 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 (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 NONINFRINGEMENT.  IN NO EVENT SHALL

 * THE AUTHORS OR COPYRIGHT HOLDERS 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:

 *    Christian Gmeiner <christian.gmeiner@gmail.com>

 */

#include "etnaviv_priv.h"

#include "etnaviv_drmif.h"

static uint64_t get_param(struct etna_device *dev, uint32_t core, uint32_t param)

{

	struct drm_etnaviv_param req = {

		.pipe = core,

		.param = param,

	};

	int ret;

	ret = drmCommandWriteRead(dev->fd, DRM_ETNAVIV_GET_PARAM, &req, sizeof(req));

	if (ret) {

		ERROR_MSG("get-param (%x) failed! %d (%s)", param, ret, strerror(errno));

		return 0;

	}

	return req.value;

}

drm_public struct etna_gpu *etna_gpu_new(struct etna_device *dev, unsigned int core)

{

	struct etna_gpu *gpu;

	gpu = calloc(1, sizeof(*gpu));

	if (!gpu) {

		ERROR_MSG("allocation failed");

		goto fail;

	}

	gpu->dev = dev;

	gpu->core = core;

	gpu->model    	= get_param(dev, core, ETNAVIV_PARAM_GPU_MODEL);

	gpu->revision 	= get_param(dev, core, ETNAVIV_PARAM_GPU_REVISION);

	if (!gpu->model)

		goto fail;

	INFO_MSG(" GPU model:          0x%x (rev %x)", gpu->model, gpu->revision);

	return gpu;

fail:

	if (gpu)

		etna_gpu_del(gpu);

	return NULL;

}

drm_public void etna_gpu_del(struct etna_gpu *gpu)

{

	free(gpu);

}

drm_public int etna_gpu_get_param(struct etna_gpu *gpu, enum etna_param_id param,

		uint64_t *value)

{

	struct etna_device *dev = gpu->dev;

	unsigned int core = gpu->core;

	switch(param) {

	case ETNA_GPU_MODEL:

		*value = gpu->model;

		return 0;

	case ETNA_GPU_REVISION:

		*value = gpu->revision;

		return 0;

	case ETNA_GPU_FEATURES_0:

		*value = get_param(dev, core, ETNAVIV_PARAM_GPU_FEATURES_0);

		return 0;

	case ETNA_GPU_FEATURES_1:

		*value = get_param(dev, core, ETNAVIV_PARAM_GPU_FEATURES_1);

		return 0;

	case ETNA_GPU_FEATURES_2:

		*value = get_param(dev, core, ETNAVIV_PARAM_GPU_FEATURES_2);

		return 0;

	case ETNA_GPU_FEATURES_3:

		*value = get_param(dev, core, ETNAVIV_PARAM_GPU_FEATURES_3);

		return 0;

	case ETNA_GPU_FEATURES_4:

		*value = get_param(dev, core, ETNAVIV_PARAM_GPU_FEATURES_4);

		return 0;

	case ETNA_GPU_FEATURES_5:

		*value = get_param(dev, core, ETNAVIV_PARAM_GPU_FEATURES_5);

		return 0;

	case ETNA_GPU_FEATURES_6:

		*value = get_param(dev, core, ETNAVIV_PARAM_GPU_FEATURES_6);

		return 0;

	case ETNA_GPU_STREAM_COUNT:

		*value = get_param(dev, core, ETNA_GPU_STREAM_COUNT);

		return 0;

	case ETNA_GPU_REGISTER_MAX:

		*value = get_param(dev, core, ETNA_GPU_REGISTER_MAX);

		return 0;

	case ETNA_GPU_THREAD_COUNT:

		*value = get_param(dev, core, ETNA_GPU_THREAD_COUNT);

		return 0;

	case ETNA_GPU_VERTEX_CACHE_SIZE:

		*value = get_param(dev, core, ETNA_GPU_VERTEX_CACHE_SIZE);

		return 0;

	case ETNA_GPU_SHADER_CORE_COUNT:

		*value = get_param(dev, core, ETNA_GPU_SHADER_CORE_COUNT);

		return 0;

	case ETNA_GPU_PIXEL_PIPES:

		*value = get_param(dev, core, ETNA_GPU_PIXEL_PIPES);

		return 0;

	case ETNA_GPU_VERTEX_OUTPUT_BUFFER_SIZE:

		*value = get_param(dev, core, ETNA_GPU_VERTEX_OUTPUT_BUFFER_SIZE);

		return 0;

	case ETNA_GPU_BUFFER_SIZE:

		*value = get_param(dev, core, ETNA_GPU_BUFFER_SIZE);

		return 0;

	case ETNA_GPU_INSTRUCTION_COUNT:

		*value = get_param(dev, core, ETNA_GPU_INSTRUCTION_COUNT);

		return 0;

	case ETNA_GPU_NUM_CONSTANTS:

		*value = get_param(dev, core, ETNA_GPU_NUM_CONSTANTS);

		return 0;

	case ETNA_GPU_NUM_VARYINGS:

		*value = get_param(dev, core, ETNA_GPU_NUM_VARYINGS);

		return 0;

	default:

		ERROR_MSG("invalid param id: %d", param);

		return -1;

	}

	return 0;

}