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Line 1290... Line 1290...
1290 
unlock:
 1290 
unlock:
1291 
	mutex_unlock(&dev->struct_mutex);
 1291 
	mutex_unlock(&dev->struct_mutex);
1292 
	return ret;
 1292 
	return ret;
1293 
}
 1293 
}
Line -... Line 1294...
- 
 
 1294 
 
- 
 
 1295 
/**
- 
 
 1296 
 * Called when user space has done writes to this buffer
- 
 
 1297 
 */
- 
 
 1298 
int
- 
 
 1299 
i915_gem_sw_finish_ioctl(struct drm_device *dev, void *data,
- 
 
 1300 
			 struct drm_file *file)
- 
 
 1301 
{
- 
 
 1302 
	struct drm_i915_gem_sw_finish *args = data;
- 
 
 1303 
	struct drm_i915_gem_object *obj;
Line -... Line 1304...
- 
 
 1304 
	int ret = 0;
- 
 
 1305 
 
- 
 
 1306 
    if(args->handle == -2)
- 
 
 1307 
    {
- 
 
 1308 
       printf("%s handle %d\n", __FUNCTION__, args->handle);
Line -... Line 1309...
- 
 
 1309 
       return 0;
- 
 
 1310 
    }
- 
 
 1311 
 
Line -... Line 1312...
- 
 
 1312 
	ret = i915_mutex_lock_interruptible(dev);
- 
 
 1313 
	if (ret)
- 
 
 1314 
		return ret;
- 
 
 1315 
 
- 
 
 1316 
	obj = to_intel_bo(drm_gem_object_lookup(dev, file, args->handle));
Line -... Line 1317...
- 
 
 1317 
	if (&obj->base == NULL) {
- 
 
 1318 
		ret = -ENOENT;
- 
 
 1319 
		goto unlock;
- 
 
 1320 
	}
- 
 
 1321 
 
- 
 
 1322 
	/* Pinned buffers may be scanout, so flush the cache */
- 
 
 1323 
	if (obj->pin_display)
- 
 
 1324 
		i915_gem_object_flush_cpu_write_domain(obj, true);
- 
 
 1325 
 
Line 1294... Line 1326...
1294 
 
 1326 
	drm_gem_object_unreference(&obj->base);
1295 
 
 1327 
unlock:
1296 
 
 1328 
	mutex_unlock(&dev->struct_mutex);
1297 
 
 1329 
	return ret;
Line 3113... Line 3145...
3113 
	 * snooping behaviour occurs naturally as the result of our domain
 3145 
	 * snooping behaviour occurs naturally as the result of our domain
3114 
	 * tracking.
 3146 
	 * tracking.
3115 
	 */
 3147 
	 */
3116 
	if (!force && cpu_cache_is_coherent(obj->base.dev, obj->cache_level))
 3148 
	if (!force && cpu_cache_is_coherent(obj->base.dev, obj->cache_level))
3117 
		return false;
 3149 
		return false;
3118 
#if 0
 - 
 
3119 
     if(obj->mapped != NULL)
 - 
 
3120 
     {
 - 
 
3121 
        uint8_t *page_virtual;
 - 
 
3122 
        unsigned int i;
 - 
 
Line 3123... Line -...
3123 
 
 - 
 
3124 
        page_virtual = obj->mapped;
 - 
 
3125 
        asm volatile("mfence");
 - 
 
3126 
        for (i = 0; i < obj->base.size; i += x86_clflush_size)
 - 
 
3127 
            clflush(page_virtual + i);
 - 
 
3128 
        asm volatile("mfence");
 - 
 
3129 
     }
 - 
 
3130 
     else
 - 
 
3131 
     {
 - 
 
3132 
        uint8_t *page_virtual;
 - 
 
3133 
        unsigned int i;
 - 
 
3134 
        page_virtual = AllocKernelSpace(obj->base.size);
 3150 
 
3135 
        if(page_virtual != NULL)
 - 
 
3136 
        {
 - 
 
3137 
            dma_addr_t *src, *dst;
 - 
 
3138 
            u32 count;
 - 
 
3139 
 
 - 
 
3140 
#define page_tabs  0xFDC00000      /* really dirty hack */
 - 
 
3141 
 
 3151 
	trace_i915_gem_object_clflush(obj);
3142 
            src =  obj->pages.page;
 - 
 
3143 
            dst =  &((dma_addr_t*)page_tabs)[(u32_t)page_virtual >> 12];
 - 
 
3144 
            count = obj->base.size/4096;
 - 
 
3145 
 
 - 
 
3146 
            while(count--)
 - 
 
3147 
            {
 - 
 
3148 
                *dst++ = (0xFFFFF000 & *src++) | 0x001 ;
 - 
 
3149 
            };
 - 
 
3150 
 
 - 
 
3151 
            asm volatile("mfence");
 - 
 
3152 
            for (i = 0; i < obj->base.size; i += x86_clflush_size)
 - 
 
3153 
                clflush(page_virtual + i);
 - 
 
3154 
            asm volatile("mfence");
 - 
 
3155 
            FreeKernelSpace(page_virtual);
 - 
 
3156 
        }
 - 
 
3157 
        else
 - 
 
3158 
        {
 - 
 
3159 
            asm volatile (
 - 
 
3160 
            "mfence         \n"
 - 
 
3161 
            "wbinvd         \n"                 /* this is really ugly  */
 - 
 
3162 
            "mfence");
 - 
 
3163 
        }
 - 
 
3164 
     }
 - 
 
Line 3165... Line 3152...
3165 
#endif
 3152 
	drm_clflush_sg(obj->pages);
3166 
 
 3153 
 
Line 3167... Line 3154...
3167 
	return true;
 3154 
	return true;