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host1x: Emulated Syncpoint KMD Driver

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1. Update Host1x-Syncpt
   - add syncpt-list in syncpoint-pool structure.
   - add exported "host1x-syncpt-*" interface and supporting private interface.
2. Update Host1x-NvHost
   - add support for nvhost-syncpt and nvhost-client interface and supporting private interface.
   - falcon and pm interface not supported
3. Update Host1x-Fence
   - add exported "host1x-fence-*" interface and supporting private interface.
4. Add Host1x-Poll
   - Per Pool polling workequeue created
   - add poll supporting private interface.
5. Add new IOCTL

Jira HOSTX-5514

Change-Id: I187fa7ed89a3479e51b79f9d8d438ede75e1a36a
Reviewed-on: https://git-master.nvidia.com/r/c/linux-nv-oot/+/3136834
Tested-by: Amitabh Dutta <amitabhd@nvidia.com>
Reviewed-by: Bitan Biswas <bbiswas@nvidia.com>
GVS: buildbot_gerritrpt <buildbot_gerritrpt@nvidia.com>
Reviewed-by: Amitabh Dutta <amitabhd@nvidia.com>
This commit is contained in:
amitabhd
2024-05-14 05:13:59 +00:00
committed by Jon Hunter
parent 644d35281a
commit 872cead7b6
21 changed files with 3271 additions and 0 deletions
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99
drivers/gpu/host1x-emu/dev.h Normal file
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/*
* SPDX-FileCopyrightText: Copyright (c) 2024 NVIDIA CORPORATION & AFFILIATES. All rights reserved.
* SPDX-License-Identifier: GPL-2.0-only
*/
#ifndef HOST1X_DEV_H
#define HOST1X_DEV_H
#include <linux/cdev.h>
#include <linux/device.h>
#include <linux/iommu.h>
#include <linux/iova.h>
#include <linux/platform_device.h>
#include <linux/reset.h>
#include "poll.h"
#include "syncpt.h"
struct output;
struct dentry;
struct host1x_syncpt;
int host1x_user_init(struct host1x *host);
void host1x_sync_writel(struct host1x *host1x, u32 r, u32 v);
u32 host1x_sync_readl(struct host1x *host1x, u32 r);
struct host1x_syncpt_ops {
void (*restore)(struct host1x_syncpt *syncpt);
u32 (*load)(struct host1x_syncpt *syncpt);
int (*cpu_incr)(struct host1x_syncpt *syncpt);
};
struct host1x_info {
u64 dma_mask; /* mask of addressable memory */
unsigned int nb_pts; /* host1x: number of syncpoints supported */
int (*init)(struct host1x *host1x); /* initialize per SoC ops */
};
struct host1x {
const struct host1x_info *info;
struct device *dev;
struct dentry *debugfs;
struct device_dma_parameters dma_parms;
/* Charected-Dev*/
int major;
int next_minor;
struct class *host1x_class;
struct cdev cdev;
struct device *ctrl;
/* Resources */
struct host1x_syncpt *syncpt;
struct host1x_syncpt_base *bases;
/* Resources accessible by this VM */
unsigned int syncpt_end;
unsigned int syncpt_base;
unsigned int syncpt_count;
unsigned int polling_intrval;
#ifdef HOST1X_EMU_HYPERVISOR
void __iomem *syncpt_va_apt; /* syncpoint apperture mapped in kernel space */
#else
void *syncpt_va_apt;
#endif
u64 syncpt_phy_apt; /* syncpoint page size */
unsigned int syncpt_page_size; /* syncpoint page size */
/* Restricted syncpoint pools */
unsigned int num_pools;
unsigned int ro_pool_id;
struct host1x_syncpt_pool *pools;
/* Resource Ops */
const struct host1x_syncpt_ops *syncpt_op;
/* Resources Lock */
struct mutex syncpt_mutex;
};
static inline void host1x_hw_syncpt_restore(struct host1x *host,
struct host1x_syncpt *sp)
{
host->syncpt_op->restore(sp);
}
static inline u32 host1x_hw_syncpt_load(struct host1x *host,
struct host1x_syncpt *sp)
{
return host->syncpt_op->load(sp);
}
static inline int host1x_hw_syncpt_cpu_incr(struct host1x *host,
struct host1x_syncpt *sp)
{
return host->syncpt_op->cpu_incr(sp);
}
#endif