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/*
* Copyright © 2022 Imagination Technologies Ltd.
*
* based in part on anv driver which is:
* Copyright © 2015 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 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.
*/
#include <string.h>
#include "pvr_device_info.h"
#include "pvr_private.h"
#include "util/blob.h"
#include "vk_log.h"
#include "vk_object.h"
#include "vulkan/util/vk_util.h"
static void pvr_pipeline_cache_load(struct pvr_pipeline_cache *cache,
const void *data,
size_t size)
{
struct pvr_device *device = cache->device;
struct pvr_physical_device *pdevice = device->pdevice;
struct vk_pipeline_cache_header header;
struct blob_reader blob;
blob_reader_init(&blob, data, size);
blob_copy_bytes(&blob, &header, sizeof(header));
if (blob.overrun)
return;
if (header.header_size < sizeof(header))
return;
if (header.header_version != VK_PIPELINE_CACHE_HEADER_VERSION_ONE)
return;
if (header.vendor_id != VK_VENDOR_ID_IMAGINATION)
return;
if (header.device_id != pdevice->dev_info.ident.device_id)
return;
if (memcmp(header.uuid, pdevice->pipeline_cache_uuid, VK_UUID_SIZE) != 0)
return;
/* TODO: There isn't currently any cached data so there's nothing to load
* at this point. Once there is something to load then load it now.
*/
}
VkResult pvr_CreatePipelineCache(VkDevice _device,
const VkPipelineCacheCreateInfo *pCreateInfo,
const VkAllocationCallbacks *pAllocator,
VkPipelineCache *pPipelineCache)
{
PVR_FROM_HANDLE(pvr_device, device, _device);
struct pvr_pipeline_cache *cache;
assert(pCreateInfo->sType == VK_STRUCTURE_TYPE_PIPELINE_CACHE_CREATE_INFO);
assert(pCreateInfo->flags == 0);
cache = vk_object_alloc(&device->vk,
pAllocator,
sizeof(*cache),
VK_OBJECT_TYPE_PIPELINE_CACHE);
if (!cache)
return vk_error(device, VK_ERROR_OUT_OF_HOST_MEMORY);
cache->device = device;
if (pCreateInfo->initialDataSize > 0) {
pvr_pipeline_cache_load(cache,
pCreateInfo->pInitialData,
pCreateInfo->initialDataSize);
}
*pPipelineCache = pvr_pipeline_cache_to_handle(cache);
return VK_SUCCESS;
}
void pvr_DestroyPipelineCache(VkDevice _device,
VkPipelineCache _cache,
const VkAllocationCallbacks *pAllocator)
{
PVR_FROM_HANDLE(pvr_device, device, _device);
PVR_FROM_HANDLE(pvr_pipeline_cache, cache, _cache);
if (!cache)
return;
vk_object_free(&device->vk, pAllocator, cache);
}
VkResult pvr_GetPipelineCacheData(VkDevice _device,
VkPipelineCache _cache,
size_t *pDataSize,
void *pData)
{
PVR_FROM_HANDLE(pvr_device, device, _device);
struct pvr_physical_device *pdevice = device->pdevice;
struct blob blob;
if (pData)
blob_init_fixed(&blob, pData, *pDataSize);
else
blob_init_fixed(&blob, NULL, SIZE_MAX);
struct vk_pipeline_cache_header header = {
.header_size = sizeof(struct vk_pipeline_cache_header),
.header_version = VK_PIPELINE_CACHE_HEADER_VERSION_ONE,
.vendor_id = VK_VENDOR_ID_IMAGINATION,
.device_id = pdevice->dev_info.ident.device_id,
};
memcpy(header.uuid, pdevice->pipeline_cache_uuid, VK_UUID_SIZE);
blob_write_bytes(&blob, &header, sizeof(header));
/* TODO: Once there's some data to cache then this should be written to
* 'blob'.
*/
*pDataSize = blob.size;
blob_finish(&blob);
return VK_SUCCESS;
}
VkResult pvr_MergePipelineCaches(VkDevice _device,
VkPipelineCache destCache,
uint32_t srcCacheCount,
const VkPipelineCache *pSrcCaches)
{
/* TODO: Once there's some data to cache then this will need to be able to
* merge caches together.
*/
return VK_SUCCESS;
}
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