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      1 /*
      2  * Copyright (C) 2015 Etnaviv Project
      3  *
      4  * Permission is hereby granted, free of charge, to any person obtaining a
      5  * copy of this software and associated documentation files (the "Software"),
      6  * to deal in the Software without restriction, including without limitation
      7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      8  * and/or sell copies of the Software, and to permit persons to whom the
      9  * Software is furnished to do so, subject to the following conditions:
     10  *
     11  * The above copyright notice and this permission notice (including the next
     12  * paragraph) shall be included in all copies or substantial portions of the
     13  * Software.
     14  *
     15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
     19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
     20  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
     21  * SOFTWARE.
     22  *
     23  * Authors:
     24  *    Christian Gmeiner <christian.gmeiner (at) gmail.com>
     25  */
     26 
     27 #ifdef HAVE_CONFIG_H
     28 # include <config.h>
     29 #endif
     30 
     31 #include "etnaviv_priv.h"
     32 #include "etnaviv_drmif.h"
     33 
     34 static uint64_t get_param(struct etna_device *dev, uint32_t core, uint32_t param)
     35 {
     36 	struct drm_etnaviv_param req = {
     37 		.pipe = core,
     38 		.param = param,
     39 	};
     40 	int ret;
     41 
     42 	ret = drmCommandWriteRead(dev->fd, DRM_ETNAVIV_GET_PARAM, &req, sizeof(req));
     43 	if (ret) {
     44 		ERROR_MSG("get-param (%x) failed! %d (%s)", param, ret, strerror(errno));
     45 		return 0;
     46 	}
     47 
     48 	return req.value;
     49 }
     50 
     51 struct etna_gpu *etna_gpu_new(struct etna_device *dev, unsigned int core)
     52 {
     53 	struct etna_gpu *gpu;
     54 
     55 	gpu = calloc(1, sizeof(*gpu));
     56 	if (!gpu) {
     57 		ERROR_MSG("allocation failed");
     58 		goto fail;
     59 	}
     60 
     61 	gpu->dev = dev;
     62 	gpu->core = core;
     63 
     64 	/* get specs from kernel space */
     65 	gpu->specs.model    	= get_param(dev, core, ETNAVIV_PARAM_GPU_MODEL);
     66 	gpu->specs.revision 	= get_param(dev, core, ETNAVIV_PARAM_GPU_REVISION);
     67 	gpu->specs.features[0] = get_param(dev, core, ETNAVIV_PARAM_GPU_FEATURES_0);
     68 	gpu->specs.features[1] = get_param(dev, core, ETNAVIV_PARAM_GPU_FEATURES_1);
     69 	gpu->specs.features[2] = get_param(dev, core, ETNAVIV_PARAM_GPU_FEATURES_2);
     70 	gpu->specs.features[3] = get_param(dev, core, ETNAVIV_PARAM_GPU_FEATURES_3);
     71 	gpu->specs.features[4] = get_param(dev, core, ETNAVIV_PARAM_GPU_FEATURES_4);
     72 	gpu->specs.features[5] = get_param(dev, core, ETNAVIV_PARAM_GPU_FEATURES_5);
     73 	gpu->specs.features[6] = get_param(dev, core, ETNAVIV_PARAM_GPU_FEATURES_6);
     74 	gpu->specs.stream_count = get_param(dev, core, ETNA_GPU_STREAM_COUNT);
     75 	gpu->specs.register_max = get_param(dev, core, ETNA_GPU_REGISTER_MAX);
     76 	gpu->specs.thread_count = get_param(dev, core, ETNA_GPU_THREAD_COUNT);
     77 	gpu->specs.vertex_cache_size = get_param(dev, core, ETNA_GPU_VERTEX_CACHE_SIZE);
     78 	gpu->specs.shader_core_count = get_param(dev, core, ETNA_GPU_SHADER_CORE_COUNT);
     79 	gpu->specs.pixel_pipes = get_param(dev, core, ETNA_GPU_PIXEL_PIPES);
     80 	gpu->specs.vertex_output_buffer_size = get_param(dev, core, ETNA_GPU_VERTEX_OUTPUT_BUFFER_SIZE);
     81 	gpu->specs.buffer_size = get_param(dev, core, ETNA_GPU_BUFFER_SIZE);
     82 	gpu->specs.instruction_count = get_param(dev, core, ETNA_GPU_INSTRUCTION_COUNT);
     83 	gpu->specs.num_constants = get_param(dev, core, ETNA_GPU_NUM_CONSTANTS);
     84 	gpu->specs.num_varyings = get_param(dev, core, ETNA_GPU_NUM_VARYINGS);
     85 
     86 	if (!gpu->specs.model)
     87 		goto fail;
     88 
     89 	INFO_MSG(" GPU model:          0x%x (rev %x)", gpu->specs.model, gpu->specs.revision);
     90 
     91 	return gpu;
     92 fail:
     93 	if (gpu)
     94 		etna_gpu_del(gpu);
     95 
     96 	return NULL;
     97 }
     98 
     99 void etna_gpu_del(struct etna_gpu *gpu)
    100 {
    101 	free(gpu);
    102 }
    103 
    104 int etna_gpu_get_param(struct etna_gpu *gpu, enum etna_param_id param,
    105 		uint64_t *value)
    106 {
    107 	switch(param) {
    108 	case ETNA_GPU_MODEL:
    109 		*value = gpu->specs.model;
    110 		return 0;
    111 	case ETNA_GPU_REVISION:
    112 		*value = gpu->specs.revision;
    113 		return 0;
    114 	case ETNA_GPU_FEATURES_0:
    115 		*value = gpu->specs.features[0];
    116 		return 0;
    117 	case ETNA_GPU_FEATURES_1:
    118 		*value = gpu->specs.features[1];
    119 		return 0;
    120 	case ETNA_GPU_FEATURES_2:
    121 		*value = gpu->specs.features[2];
    122 		return 0;
    123 	case ETNA_GPU_FEATURES_3:
    124 		*value = gpu->specs.features[3];
    125 		return 0;
    126 	case ETNA_GPU_FEATURES_4:
    127 		*value = gpu->specs.features[4];
    128 		return 0;
    129 	case ETNA_GPU_FEATURES_5:
    130 		*value = gpu->specs.features[5];
    131 		return 0;
    132 	case ETNA_GPU_FEATURES_6:
    133 		*value = gpu->specs.features[6];
    134 		return 0;
    135 	case ETNA_GPU_STREAM_COUNT:
    136 		*value = gpu->specs.stream_count;
    137 		return 0;
    138 	case ETNA_GPU_REGISTER_MAX:
    139 		*value = gpu->specs.register_max;
    140 		return 0;
    141 	case ETNA_GPU_THREAD_COUNT:
    142 		*value = gpu->specs.thread_count;
    143 		return 0;
    144 	case ETNA_GPU_VERTEX_CACHE_SIZE:
    145 		*value = gpu->specs.vertex_cache_size;
    146 		return 0;
    147 	case ETNA_GPU_SHADER_CORE_COUNT:
    148 		*value = gpu->specs.shader_core_count;
    149 		return 0;
    150 	case ETNA_GPU_PIXEL_PIPES:
    151 		*value = gpu->specs.pixel_pipes;
    152 		return 0;
    153 	case ETNA_GPU_VERTEX_OUTPUT_BUFFER_SIZE:
    154 		*value = gpu->specs.vertex_output_buffer_size;
    155 		return 0;
    156 	case ETNA_GPU_BUFFER_SIZE:
    157 		*value = gpu->specs.buffer_size;
    158 		return 0;
    159 	case ETNA_GPU_INSTRUCTION_COUNT:
    160 		*value = gpu->specs.instruction_count;
    161 		return 0;
    162 	case ETNA_GPU_NUM_CONSTANTS:
    163 		*value = gpu->specs.num_constants;
    164 		return 0;
    165 	case ETNA_GPU_NUM_VARYINGS:
    166 		*value = gpu->specs.num_varyings;
    167 		return 0;
    168 
    169 	default:
    170 		ERROR_MSG("invalid param id: %d", param);
    171 		return -1;
    172 	}
    173 
    174 	return 0;
    175 }
    176