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/* SPDX-License-Identifier: Apache-2.0
* Copyright 2021-2022 Blender Foundation */
#pragma once
#ifdef WITH_METAL
# include <Metal/Metal.h>
# include <string>
# include "device/metal/device.h"
# include "device/metal/kernel.h"
# include "device/queue.h"
# include "util/thread.h"
CCL_NAMESPACE_BEGIN
enum MetalGPUVendor {
METAL_GPU_UNKNOWN = 0,
METAL_GPU_APPLE = 1,
METAL_GPU_AMD = 2,
METAL_GPU_INTEL = 3,
};
/* Retains a named MTLDevice for device enumeration. */
struct MetalPlatformDevice {
MetalPlatformDevice(id<MTLDevice> device, const string &device_name)
: device_id(device), device_name(device_name)
{
[device_id retain];
}
~MetalPlatformDevice()
{
[device_id release];
}
id<MTLDevice> device_id;
string device_name;
};
/* Contains static Metal helper functions. */
struct MetalInfo {
static bool device_version_check(id<MTLDevice> device);
static void get_usable_devices(vector<MetalPlatformDevice> *usable_devices);
static MetalGPUVendor get_vendor_from_device_name(string const &device_name);
/* Platform information. */
static bool get_num_devices(uint32_t *num_platforms);
static uint32_t get_num_devices();
static bool get_device_name(id<MTLDevice> device_id, string *device_name);
static string get_device_name(id<MTLDevice> device_id);
};
/* Pool of MTLBuffers whose lifetime is linked to a single MTLCommandBuffer */
class MetalBufferPool {
struct MetalBufferListEntry {
MetalBufferListEntry(id<MTLBuffer> buffer, id<MTLCommandBuffer> command_buffer)
: buffer(buffer), command_buffer(command_buffer)
{
}
MetalBufferListEntry() = delete;
id<MTLBuffer> buffer;
id<MTLCommandBuffer> command_buffer;
};
std::vector<MetalBufferListEntry> buffer_free_list;
std::vector<MetalBufferListEntry> buffer_in_use_list;
thread_mutex buffer_mutex;
size_t total_temp_mem_size = 0;
public:
MetalBufferPool() = default;
~MetalBufferPool();
id<MTLBuffer> get_buffer(id<MTLDevice> device,
id<MTLCommandBuffer> command_buffer,
NSUInteger length,
MTLResourceOptions options,
const void *pointer,
Stats &stats);
void process_command_buffer_completion(id<MTLCommandBuffer> command_buffer);
};
CCL_NAMESPACE_END
#endif /* WITH_METAL */
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