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/*
* Copyright 2019 Google LLC
* SPDX-License-Identifier: MIT
*
* based in part on anv and radv which are:
* Copyright © 2015 Intel Corporation
* Copyright © 2016 Red Hat.
* Copyright © 2016 Bas Nieuwenhuizen
*/
#ifndef VN_INSTANCE_H
#define VN_INSTANCE_H
#include "vn_common.h"
#include "venus-protocol/vn_protocol_driver_defines.h"
#include "vn_cs.h"
#include "vn_renderer.h"
#include "vn_renderer_util.h"
#include "vn_ring.h"
/* require and request at least Vulkan 1.1 at both instance and device levels
*/
#define VN_MIN_RENDERER_VERSION VK_API_VERSION_1_1
/* max advertised version at both instance and device levels */
#ifdef ANDROID
#define VN_MAX_API_VERSION VK_MAKE_VERSION(1, 1, VK_HEADER_VERSION)
#else
#define VN_MAX_API_VERSION VK_MAKE_VERSION(1, 3, VK_HEADER_VERSION)
#endif
struct vn_instance {
struct vn_instance_base base;
struct driOptionCache dri_options;
struct driOptionCache available_dri_options;
struct vn_renderer *renderer;
struct vn_renderer_shmem_pool reply_shmem_pool;
mtx_t ring_idx_mutex;
uint64_t ring_idx_used_mask;
struct {
mtx_t mutex;
struct vn_renderer_shmem *shmem;
struct vn_ring ring;
uint64_t id;
struct vn_cs_encoder upload;
uint32_t command_dropped;
/* to synchronize renderer/ring */
mtx_t roundtrip_mutex;
uint64_t roundtrip_next;
} ring;
/* Between the driver and the app, VN_MAX_API_VERSION is what we advertise
* and base.base.app_info.api_version is what the app requests.
*
* Between the driver and the renderer, renderer_api_version is the api
* version we request internally, which can be higher than
* base.base.app_info.api_version. renderer_version is the instance
* version we can use internally.
*/
uint32_t renderer_api_version;
uint32_t renderer_version;
/* for VN_CS_ENCODER_STORAGE_SHMEM_POOL */
struct {
mtx_t mutex;
struct vn_renderer_shmem_pool pool;
} cs_shmem;
struct {
mtx_t mutex;
bool initialized;
struct vn_physical_device *devices;
uint32_t device_count;
VkPhysicalDeviceGroupProperties *groups;
uint32_t group_count;
} physical_device;
};
VK_DEFINE_HANDLE_CASTS(vn_instance,
base.base.base,
VkInstance,
VK_OBJECT_TYPE_INSTANCE)
VkResult
vn_instance_submit_roundtrip(struct vn_instance *instance,
uint64_t *roundtrip_seqno);
void
vn_instance_wait_roundtrip(struct vn_instance *instance,
uint64_t roundtrip_seqno);
static inline void
vn_instance_roundtrip(struct vn_instance *instance)
{
uint64_t roundtrip_seqno;
if (vn_instance_submit_roundtrip(instance, &roundtrip_seqno) == VK_SUCCESS)
vn_instance_wait_roundtrip(instance, roundtrip_seqno);
}
VkResult
vn_instance_ring_submit(struct vn_instance *instance,
const struct vn_cs_encoder *cs);
struct vn_instance_submit_command {
/* empty command implies errors */
struct vn_cs_encoder command;
struct vn_cs_encoder_buffer buffer;
/* non-zero implies waiting */
size_t reply_size;
/* when reply_size is non-zero, NULL can be returned on errors */
struct vn_renderer_shmem *reply_shmem;
struct vn_cs_decoder reply;
/* valid when instance ring submission succeeds */
bool ring_seqno_valid;
uint32_t ring_seqno;
};
static inline struct vn_cs_encoder *
vn_instance_submit_command_init(struct vn_instance *instance,
struct vn_instance_submit_command *submit,
void *cmd_data,
size_t cmd_size,
size_t reply_size)
{
submit->buffer = VN_CS_ENCODER_BUFFER_INITIALIZER(cmd_data);
submit->command = VN_CS_ENCODER_INITIALIZER(&submit->buffer, cmd_size);
submit->reply_size = reply_size;
submit->reply_shmem = NULL;
return &submit->command;
}
void
vn_instance_submit_command(struct vn_instance *instance,
struct vn_instance_submit_command *submit);
static inline struct vn_cs_decoder *
vn_instance_get_command_reply(struct vn_instance *instance,
struct vn_instance_submit_command *submit)
{
return submit->reply_shmem ? &submit->reply : NULL;
}
static inline void
vn_instance_free_command_reply(struct vn_instance *instance,
struct vn_instance_submit_command *submit)
{
assert(submit->reply_shmem);
vn_renderer_shmem_unref(instance->renderer, submit->reply_shmem);
}
static inline struct vn_renderer_shmem *
vn_instance_cs_shmem_alloc(struct vn_instance *instance,
size_t size,
size_t *out_offset)
{
struct vn_renderer_shmem *shmem;
mtx_lock(&instance->cs_shmem.mutex);
shmem = vn_renderer_shmem_pool_alloc(
instance->renderer, &instance->cs_shmem.pool, size, out_offset);
mtx_unlock(&instance->cs_shmem.mutex);
return shmem;
}
static inline int
vn_instance_acquire_ring_idx(struct vn_instance *instance)
{
mtx_lock(&instance->ring_idx_mutex);
int ring_idx = ffsll(~instance->ring_idx_used_mask) - 1;
if (ring_idx >= instance->renderer->info.max_timeline_count)
ring_idx = -1;
if (ring_idx > 0)
instance->ring_idx_used_mask |= (1ULL << (uint32_t)ring_idx);
mtx_unlock(&instance->ring_idx_mutex);
assert(ring_idx); /* never acquire the dedicated CPU ring */
/* returns -1 when no vacant rings */
return ring_idx;
}
static inline void
vn_instance_release_ring_idx(struct vn_instance *instance, uint32_t ring_idx)
{
assert(ring_idx > 0);
mtx_lock(&instance->ring_idx_mutex);
assert(instance->ring_idx_used_mask & (1ULL << ring_idx));
instance->ring_idx_used_mask &= ~(1ULL << ring_idx);
mtx_unlock(&instance->ring_idx_mutex);
}
#endif /* VN_INSTANCE_H */
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