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kernel_samsung_a34x-permissive/drivers/misc/mediatek/vpu/2.0/vpu_drv.c

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Import A346BXXU1AWB9 kernel source Android 13
2024-04-28 06:49:01 -07:00
// SPDX-License-Identifier: GPL-2.0
/*
* Copyright (c) 2019 MediaTek Inc.
*/
#include <linux/types.h>
#include <linux/device.h>
#include <linux/cdev.h>
#include <linux/platform_device.h>
#include <linux/interrupt.h>
#include <linux/proc_fs.h>
#include <linux/slab.h>
#include <linux/delay.h>
#include <linux/uaccess.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/init.h>
#include <linux/io.h>
#include <linux/of_platform.h>
#include <linux/of_irq.h>
#include <linux/of_address.h>
#ifdef CONFIG_MTK_M4U
#include <m4u.h>
#else
#include "mach/mt_iommu.h"
#endif
#include <ion.h>
#include <mtk/ion_drv.h>
#include <mtk/mtk_ion.h>
#include "vpu_drv.h"
#include "vpu_cmn.h"
#include "vpu_dbg.h"
#ifdef CONFIG_COMPAT
/* 64 bit */
#include <linux/fs.h>
#include <linux/compat.h>
#endif
#define VPU_DEV_NAME "vpu"
static struct vpu_device *vpu_device;
static struct wakeup_source *vpu_wake_lock;
static struct list_head device_debug_list;
static struct mutex debug_list_mutex;
static bool sdsp_locked;
struct ion_client *my_ion_client;
unsigned int efuse_data;
static int vpu_probe(struct platform_device *dev);
static int vpu_remove(struct platform_device *dev);
static int vpu_suspend(struct platform_device *dev, pm_message_t mesg);
static int vpu_resume(struct platform_device *dev);
/*---------------------------------------------------------------------------*/
/* VPU Driver: pm operations */
/*---------------------------------------------------------------------------*/
#ifdef CONFIG_PM
int vpu_pm_suspend(struct device *device)
{
struct platform_device *pdev = to_platform_device(device);
WARN_ON(pdev == NULL);
return vpu_suspend(pdev, PMSG_SUSPEND);
}
int vpu_pm_resume(struct device *device)
{
struct platform_device *pdev = to_platform_device(device);
WARN_ON(pdev == NULL);
return vpu_resume(pdev);
}
int vpu_pm_restore_noirq(struct device *device)
{
return 0;
}
#else
#define vpu_pm_suspend NULL
#define vpu_pm_resume NULL
#define vpu_pm_restore_noirq NULL
#endif
static const struct dev_pm_ops vpu_pm_ops = {
.suspend = vpu_pm_suspend,
.resume = vpu_pm_resume,
.freeze = vpu_pm_suspend,
.thaw = vpu_pm_resume,
.poweroff = vpu_pm_suspend,
.restore = vpu_pm_resume,
.restore_noirq = vpu_pm_restore_noirq,
};
/*---------------------------------------------------------------------------*/
/* VPU Driver: Prototype */
/*---------------------------------------------------------------------------*/
static const struct of_device_id vpu_of_ids[] = {
{.compatible = "mediatek,vpu_core0",},
{.compatible = "mediatek,vpu_core1",},
{.compatible = "mediatek,vpu_core2",},
{}
};
static struct platform_driver vpu_driver = {
.probe = vpu_probe,
.remove = vpu_remove,
.suspend = vpu_suspend,
.resume = vpu_resume,
.driver = {
.name = VPU_DEV_NAME,
.owner = THIS_MODULE,
.of_match_table = vpu_of_ids,
#ifdef CONFIG_PM
.pm = &vpu_pm_ops,
#endif
}
};
/*---------------------------------------------------------------------------*/
/* VPU Driver: file operations */
/*---------------------------------------------------------------------------*/
static int vpu_open(struct inode *inode, struct file *flip);
static int vpu_release(struct inode *inode, struct file *flip);
static int vpu_mmap(struct file *flip, struct vm_area_struct *vma);
#ifdef CONFIG_COMPAT
static long vpu_compat_ioctl(struct file *flip, unsigned int cmd,
unsigned long arg);
#endif
static long vpu_ioctl(struct file *flip, unsigned int cmd, unsigned long arg);
static const struct file_operations vpu_fops = {
.owner = THIS_MODULE,
.open = vpu_open,
.release = vpu_release,
.mmap = vpu_mmap,
#ifdef CONFIG_COMPAT
.compat_ioctl = vpu_compat_ioctl,
#endif
.unlocked_ioctl = vpu_ioctl
};
/*---------------------------------------------------------------------------*/
/* M4U: fault callback */
/*---------------------------------------------------------------------------*/
#ifdef CONFIG_MTK_M4U
enum m4u_callback_ret_t vpu_m4u_fault_callback(int port,
unsigned int mva, void *data)
{
LOG_DBG("[m4u] fault callback: port=%d, mva=0x%x", port, mva);
return M4U_CALLBACK_HANDLED;
}
#else
enum mtk_iommu_callback_ret_t vpu_m4u_fault_callback(int port, unsigned int mva,
void *data)
{
LOG_DBG("[m4u] fault callback: port=%d, mva=0x%x", port, mva);
return MTK_IOMMU_CALLBACK_HANDLED;
}
#endif
/*---------------------------------------------------------------------------*/
/* */
/*---------------------------------------------------------------------------*/
static int vpu_num_users;
int vpu_create_user(struct vpu_user **user)
{
struct vpu_user *u;
int i = 0;
u = kzalloc(sizeof(vlist_type(struct vpu_user)), GFP_KERNEL);
if (!u)
return -ENOMEM;
mutex_init(&u->data_mutex);
mutex_lock(&debug_list_mutex);
vpu_num_users++;
mutex_unlock(&debug_list_mutex);
u->id = NULL;
u->open_pid = current->pid;
u->open_tgid = current->tgid;
INIT_LIST_HEAD(&u->enque_list);
INIT_LIST_HEAD(&u->deque_list);
init_waitqueue_head(&u->deque_wait);
init_waitqueue_head(&u->delete_wait);
for (i = 0 ; i < MTK_VPU_CORE ; i++)
u->running[i] = false;
u->deleting = false;
u->power_mode = VPU_POWER_MODE_DYNAMIC;
u->power_opp = VPU_POWER_OPP_UNREQUEST;
mutex_lock(&vpu_device->user_mutex);
list_add_tail(vlist_link(u, struct vpu_user), &vpu_device->user_list);
mutex_unlock(&vpu_device->user_mutex);
*user = u;
return 0;
}
static int vpu_write_register(struct vpu_reg_values *regs)
{
return 0;
}
struct ion_handle *vpu_hw_ion_import_handle(struct ion_client *client, int fd)
{
struct ion_handle *handle = NULL;
if (!client) {
LOG_WRN("[vpu] invalid ion client!\n");
return handle;
}
if (fd == -1) {
LOG_WRN("[vpu] invalid ion fd!\n");
return handle;
}
LOG_DBG("[vpu] ion_import_handle +\n");
handle = ion_import_dma_buf_fd(client, fd);
if (IS_ERR(handle)) {
LOG_WRN("[vpu] import ion handle failed!\n");
return NULL;
}
if (g_vpu_log_level > Log_STATE_MACHINE)
LOG_INF("[vpu] ion_import_handle(0x%p)\n", handle);
return handle;
}
int vpu_push_request_to_queue(struct vpu_user *user, struct vpu_request *req)
{
if (!user) {
LOG_ERR("empty user\n");
return -EINVAL;
}
if (user->deleting) {
LOG_WRN("push a request while deleting the user\n");
return -ENONET;
}
mutex_lock(&user->data_mutex);
list_add_tail(vlist_link(req, struct vpu_request), &user->enque_list);
mutex_unlock(&user->data_mutex);
wake_up(&vpu_device->req_wait);
return 0;
}
int vpu_put_request_to_pool(struct vpu_user *user, struct vpu_request *req)
{
int i = 0, request_core_index = -1;
int j = 0, cnt = 0;
struct ion_handle *handle = NULL;
if (!user) {
LOG_ERR("empty user\n");
return -EINVAL;
}
if (user->deleting) {
LOG_WRN("push a request while deleting the user\n");
return -ENONET;
}
if (!my_ion_client)
my_ion_client = ion_client_create(g_ion_device, "vpu_drv");
for (i = 0 ; i < req->buffer_count; i++) {
for (j = 0 ; j < req->buffers[i].plane_count; j++) {
handle = NULL;
LOG_DBG("[vpu] (%d) FD.0x%lx\n", cnt,
(unsigned long)(uintptr_t)(req->buf_ion_infos[cnt]));
handle = ion_import_dma_buf_fd(my_ion_client,
req->buf_ion_infos[cnt]);
if (IS_ERR(handle)) {
LOG_WRN("[vpu_drv] %s=0x%p failed!\n",
"import ion handle", handle);
return -EINVAL;
} else {
if (g_vpu_log_level > Log_STATE_MACHINE)
LOG_INF("[vpu_drv]cnt_%d,%s=0x%p\n",
cnt,
"ion_import_dma_buf handle",
handle);
/* import fd to handle for buffer ref count+1*/
req->buf_ion_infos[cnt] =
(uint64_t)(uintptr_t)handle;
}
cnt++;
}
}
/* CHRISTODO, specific vpu */
for (i = 0 ; i < MTK_VPU_CORE ; i++) {
/*LOG_DBG("debug i(%d), (0x1 << i) (0x%x)", i, (0x1 << i));*/
if (req->requested_core == (0x1 << i)) {
request_core_index = i;
if (!vpu_device->vpu_hw_support[request_core_index]) {
LOG_ERR("[vpu_%d] not support. %s\n",
request_core_index,
"push to common queue");
request_core_index = -1;
}
break;
}
}
#if 0
LOG_DBG("[vpu] push request to euque CORE_IDNEX (0x%x/0x%x)...\n",
req->requested_core, request_core_index);
#endif
if (request_core_index >= MTK_VPU_CORE) {
LOG_ERR("wrong core index (0x%x/%d/%d)",
req->requested_core,
request_core_index,
MTK_VPU_CORE);
}
if (request_core_index > -1 && request_core_index < MTK_VPU_CORE) {
/* LOG_DBG("[vpu] push self pool, index(%d/0x%x)\n",
* request_core_index, req->requested_core);
*/
mutex_lock(&vpu_device->servicepool_mutex[request_core_index]);
list_add_tail(vlist_link(req, struct vpu_request),
&vpu_device->pool_list[request_core_index]);
vpu_device->servicepool_list_size[request_core_index] += 1;
mutex_unlock(
&vpu_device->servicepool_mutex[request_core_index]);
} else {
/* LOG_DBG("[vpu] push common pool, index(%d,0x%x)\n",
* request_core_index, req->requested_core);
*/
mutex_lock(&vpu_device->commonpool_mutex);
list_add_tail(vlist_link(req, struct vpu_request),
&vpu_device->cmnpool_list);
vpu_device->commonpool_list_size += 1;
/* LOG_DBG("[vpu] push common pool size (%d)\n",
* vpu_device->commonpool_list_size);
*/
mutex_unlock(&vpu_device->commonpool_mutex);
}
wake_up(&vpu_device->req_wait);
/*LOG_DBG("[vpu] vpu_push_request_to_queue ---\n");*/
return 0;
}
bool vpu_user_is_running(struct vpu_user *user)
{
bool running = false;
int i = 0;
mutex_lock(&user->data_mutex);
for (i = 0 ; i < MTK_VPU_CORE ; i++) {
if (user->running[i]) {
running = true;
break;
}
}
mutex_unlock(&user->data_mutex);
return running;
}
int vpu_flush_requests_from_queue(struct vpu_user *user)
{
#if 0
struct list_head *head, *temp;
struct vpu_request *req;
mutex_lock(&user->data_mutex);
if (!user->running && list_empty(&user->enque_list)) {
mutex_unlock(&user->data_mutex);
return 0;
}
user->flushing = true;
mutex_unlock(&user->data_mutex);
/* the running request will add to the deque before interrupt */
wait_event_interruptible(user->deque_wait, !user->running);
while (user->running)
ndelay(1000);
mutex_lock(&user->data_mutex);
/* push the remaining enque to the deque */
list_for_each_safe(head, temp, &user->enque_list) {
req = vlist_node_of(head, struct vpu_request);
req->status = VPU_REQ_STATUS_FLUSH;
list_del_init(head);
list_add_tail(head, &user->deque_list);
}
user->flushing = false;
LOG_DBG("flushed queue, user:%d\n", user->id);
mutex_unlock(&user->data_mutex);
#endif
return 0;
}
int vpu_pop_request_from_queue(struct vpu_user *user,
struct vpu_request **rreq)
{
int ret;
struct vpu_request *req;
/* wait until condition is true */
ret = wait_event_interruptible(
user->deque_wait,
!list_empty(&user->deque_list));
/* ret == -ERESTARTSYS, if signal interrupt */
if (ret < 0) {
LOG_ERR("interrupt by signal, %s, ret=%d\n",
"while pop a request", ret);
*rreq = NULL;
return -EINTR;
}
mutex_lock(&user->data_mutex);
/* This part should not be happened */
if (list_empty(&user->deque_list)) {
mutex_unlock(&user->data_mutex);
LOG_ERR("pop a request from empty queue! ret=%d\n", ret);
*rreq = NULL;
return -ENODATA;
};
/* get first node from deque list */
req = vlist_node_of(user->deque_list.next, struct vpu_request);
list_del_init(vlist_link(req, struct vpu_request));
mutex_unlock(&user->data_mutex);
*rreq = req;
return 0;
}
int vpu_get_request_from_queue(struct vpu_user *user,
uint64_t request_id, struct vpu_request **rreq)
{
int ret;
struct list_head *head = NULL;
struct vpu_request *req;
bool get = false;
int retry = 0;
do {
/* wait until condition is true */
ret = wait_event_interruptible(
user->deque_wait,
!list_empty(&user->deque_list));
/* ret == -ERESTARTSYS, if signal interrupt */
if (ret < 0) {
LOG_ERR("interrupt by signal, %s, ret=%d\n",
"while pop a request", ret);
if (retry < 5) {
LOG_ERR("retry=%d\n", retry);
retry += 1;
get = false;
continue;
} else {
LOG_ERR("retry %d times fail, return FAIL\n",
retry);
*rreq = NULL;
return -EINTR;
}
}
mutex_lock(&user->data_mutex);
/* This part should not be happened */
if (list_empty(&user->deque_list)) {
mutex_unlock(&user->data_mutex);
LOG_ERR("pop a request from empty queue! ret=%d\n",
ret);
*rreq = NULL;
return -ENODATA;
};
/* get corresponding node from deque list */
list_for_each(head, &user->deque_list)
{
req = vlist_node_of(head, struct vpu_request);
LOG_DBG("[vpu] req->request_id = 0x%lx, 0x%lx\n",
(unsigned long)req->request_id,
(unsigned long)request_id);
if ((unsigned long)req->request_id ==
(unsigned long)request_id) {
get = true;
LOG_DBG("[vpu] get = true\n");
break;
}
}
if (g_vpu_log_level > VpuLogThre_PERFORMANCE)
LOG_INF("[vpu] %s (%d)\n", __func__, get);
if (get)
list_del_init(vlist_link(req, struct vpu_request));
mutex_unlock(&user->data_mutex);
} while (!get);
*rreq = req;
return 0;
}
int vpu_get_core_status(struct vpu_status *status)
{
int index = status->vpu_core_index; /* - 1;*/
if (index > -1 && index < MTK_VPU_CORE) {
LOG_DBG("vpu_%d, support(%d/0x%x)\n",
index, vpu_device->vpu_hw_support[index], efuse_data);
if (vpu_device->vpu_hw_support[index]) {
mutex_lock(&vpu_device->servicepool_mutex[index]);
status->vpu_core_available =
vpu_device->service_core_available[index];
status->pool_list_size =
vpu_device->servicepool_list_size[index];
mutex_unlock(&vpu_device->servicepool_mutex[index]);
} else {
LOG_ERR("core_%d not support (0x%x).\n",
index, efuse_data);
return -EINVAL;
}
} else {
mutex_lock(&vpu_device->commonpool_mutex);
status->vpu_core_available = true;
status->pool_list_size = vpu_device->commonpool_list_size;
mutex_unlock(&vpu_device->commonpool_mutex);
}
LOG_DBG("[vpu]%s idx(%d), available(%d), size(%d)\n", __func__,
status->vpu_core_index,
status->vpu_core_available,
status->pool_list_size);
return 0;
}
bool vpu_is_available(void)
{
int i = 0;
int pool_wait_size = 0;
mutex_lock(&vpu_device->commonpool_mutex);
pool_wait_size = vpu_device->commonpool_list_size;
mutex_unlock(&vpu_device->commonpool_mutex);
if (pool_wait_size != 0) {
LOG_INF("common pool size = %d, no empty vpu \r\n",
pool_wait_size);
return false;
}
for (i = 0; i < MTK_VPU_CORE; i++) {
mutex_lock(&vpu_device->servicepool_mutex[i]);
if (vpu_device->service_core_available[i])
pool_wait_size = vpu_device->servicepool_list_size[i];
mutex_unlock(&vpu_device->servicepool_mutex[i]);
LOG_INF("vpu_%d, pool size = %d\r\n", i, pool_wait_size);
if ((pool_wait_size == 0) && vpu_is_idle(i)) {
LOG_INF("vpu_%d, is available !!\r\n", i);
return true;
}
}
LOG_INF("GG, no vpu available !!\r\n");
return false;
}
int vpu_delete_user(struct vpu_user *user)
{
struct list_head *head, *temp;
struct vpu_request *req;
int ret = 0;
if (!user) {
LOG_ERR("delete empty user!\n");
return -EINVAL;
}
mutex_lock(&user->data_mutex);
user->deleting = true;
mutex_unlock(&user->data_mutex);
/*vpu_flush_requests_from_queue(user);*/
ret = wait_event_interruptible(
user->delete_wait,
!vpu_user_is_running(user));
if (ret < 0) {
LOG_WRN("[vpu]%s, ret=%d, wait delete user again\n",
"interrupt by signal", ret);
wait_event_interruptible(user->delete_wait,
!vpu_user_is_running(user));
}
/* clear the list of deque */
mutex_lock(&user->data_mutex);
list_for_each_safe(head, temp, &user->deque_list) {
req = vlist_node_of(head, struct vpu_request);
list_del(head);
vpu_free_request(req);
}
mutex_unlock(&user->data_mutex);
/* confirm the lock has released */
if (user->locked)
vpu_hw_unlock(user);
mutex_lock(&vpu_device->user_mutex);
LOG_INF("deleted user[0x%lx]\n", (unsigned long)(user->id));
list_del(vlist_link(user, struct vpu_user));
mutex_unlock(&vpu_device->user_mutex);
kfree(user);
return 0;
}
int vpu_dump_user(struct seq_file *s)
{
struct vpu_user *user;
struct list_head *head_user;
struct list_head *head_req;
uint32_t cnt_deq;
#define LINE_BAR " +------------------+------+------+-------+-------+\n"
vpu_print_seq(s, LINE_BAR);
vpu_print_seq(s, " |%-18s|%-6s|%-6s|%-7s|%-7s|\n",
"Id", "Pid", "Tid", "Deque", "Locked");
vpu_print_seq(s, LINE_BAR);
mutex_lock(&vpu_device->user_mutex);
list_for_each(head_user, &vpu_device->user_list)
{
user = vlist_node_of(head_user, struct vpu_user);
cnt_deq = 0;
list_for_each(head_req, &user->deque_list)
{
cnt_deq++;
}
vpu_print_seq(s, " |0x%-16lx|%-6d|%-6d|%-7d|%7d|\n",
(unsigned long)(user->id),
user->open_pid,
user->open_tgid,
cnt_deq,
user->locked);
vpu_print_seq(s, LINE_BAR);
}
mutex_unlock(&vpu_device->user_mutex);
vpu_print_seq(s, "\n");
#undef LINE_BAR
return 0;
}
int vpu_alloc_debug_info(struct vpu_dev_debug_info **rdbginfo)
{
struct vpu_dev_debug_info *dbginfo;
dbginfo = kzalloc(sizeof(vlist_type(struct vpu_dev_debug_info)),
GFP_KERNEL);
if (dbginfo == NULL) {
LOG_ERR("%s, node=0x%p\n", __func__, dbginfo);
return -ENOMEM;
}
*rdbginfo = dbginfo;
return 0;
}
int vpu_free_debug_info(struct vpu_dev_debug_info *dbginfo)
{
if (dbginfo != NULL)
kfree(dbginfo);
return 0;
}
int vpu_dump_device_dbg(struct seq_file *s)
{
struct list_head *head = NULL;
struct vpu_dev_debug_info *dbg_info;
#define LINE_BAR " +-------+-------+-------+------------------------------+\n"
vpu_print_seq(s, "========== vpu device debug info dump ==========\n");
vpu_print_seq(s, LINE_BAR);
vpu_print_seq(s, " |%-7s|%-7s|%-7s|%-32s|\n",
"PID", "TGID", "OPENFD", "USER");
vpu_print_seq(s, LINE_BAR);
mutex_lock(&debug_list_mutex);
list_for_each(head, &device_debug_list)
{
dbg_info = vlist_node_of(head, struct vpu_dev_debug_info);
vpu_print_seq(s, " |%-7d|%-7d|%-7d|%-32s|\n",
dbg_info->open_pid,
dbg_info->open_tgid,
dbg_info->dev_fd,
dbg_info->callername);
}
mutex_unlock(&debug_list_mutex);
vpu_print_seq(s, LINE_BAR);
#undef LINE_BAR
return 0;
}
/*---------------------------------------------------------------------------*/
/* IOCTL: implementation */
/*---------------------------------------------------------------------------*/
static int vpu_open(struct inode *inode, struct file *flip)
{
int ret = 0, i = 0;
bool not_support_vpu = true;
struct vpu_user *user = NULL;
for (i = 0 ; i < MTK_VPU_CORE ; i++) {
if (vpu_device->vpu_hw_support[i]) {
not_support_vpu = false;
break;
}
}
if (not_support_vpu) {
LOG_ERR("not support vpu...(%d/0x%x)\n",
not_support_vpu, efuse_data);
return -ENODEV;
}
LOG_INF("vpu_support core : 0x%x\n", efuse_data);
vpu_create_user(&user);
if (IS_ERR_OR_NULL(user)) {
LOG_ERR("fail to create user\n");
return -ENOMEM;
}
user->id = (unsigned long *)user;
LOG_INF("%s cnt(%d) user->id : 0x%lx, tids(%d/%d)\n", __func__,
vpu_num_users,
(unsigned long)(user->id),
user->open_pid, user->open_tgid);
flip->private_data = user;
return ret;
}
#ifdef CONFIG_COMPAT
static long vpu_compat_ioctl(struct file *flip, unsigned int cmd,
unsigned long arg)
{
switch (cmd) {
case VPU_IOCTL_SET_POWER:
case VPU_IOCTL_ENQUE_REQUEST:
case VPU_IOCTL_DEQUE_REQUEST:
case VPU_IOCTL_GET_ALGO_INFO:
case VPU_IOCTL_REG_WRITE:
case VPU_IOCTL_REG_READ:
case VPU_IOCTL_LOAD_ALG_TO_POOL:
case VPU_IOCTL_GET_CORE_STATUS:
case VPU_IOCTL_OPEN_DEV_NOTICE:
case VPU_IOCTL_CLOSE_DEV_NOTICE:
{
/*void *ptr = compat_ptr(arg);*/
/*return vpu_ioctl(flip, cmd, (unsigned long) ptr);*/
return flip->f_op->unlocked_ioctl(flip, cmd,
(unsigned long)compat_ptr(arg));
}
case VPU_IOCTL_LOCK:
case VPU_IOCTL_UNLOCK:
default:
return -ENOIOCTLCMD;
/*return vpu_ioctl(flip, cmd, arg);*/
}
}
#endif
static long vpu_ioctl(struct file *flip, unsigned int cmd, unsigned long arg)
{
int ret = 0;
struct vpu_user *user = flip->private_data;
int i = 0;
switch (cmd) {
case VPU_IOCTL_SET_POWER:
{
struct vpu_power power;
ret = copy_from_user(&power, (void *) arg,
sizeof(struct vpu_power));
if (ret) {
LOG_ERR("[SET_POWER] %s, ret=%d\n",
"copy 'struct power' failed", ret);
goto out;
}
ret = vpu_set_power(user, &power);
if (ret) {
LOG_ERR("[SET_POWER] set power failed, ret=%d\n", ret);
goto out;
}
break;
}
case VPU_IOCTL_ENQUE_REQUEST:
{
struct vpu_request *req;
struct vpu_request *u_req;
/*if (g_vpu_log_level > VpuLogThre_PERFORMANCE)*/
LOG_INF("[vpu] VPU_IOCTL_ENQUE_REQUEST +\n");
ret = vpu_alloc_request(&req);
if (ret) {
LOG_ERR("[ENQUE alloc request failed, ret=%d\n", ret);
goto out;
}
u_req = (struct vpu_request *) arg;
ret = get_user(req->user_id, &u_req->user_id);
ret |= get_user(req->request_id, &u_req->request_id);
ret |= get_user(req->requested_core, &u_req->requested_core);
ret |= copy_from_user(req->algo_id, u_req->algo_id,
VPU_MAX_NUM_CORES * sizeof(vpu_id_t));
ret |= get_user(req->frame_magic, &u_req->frame_magic);
ret |= get_user(req->status, &u_req->status);
ret |= get_user(req->buffer_count, &u_req->buffer_count);
ret |= get_user(req->sett_ptr, &u_req->sett_ptr);
ret |= get_user(req->sett_length, &u_req->sett_length);
ret |= get_user(req->priv, &u_req->priv);
ret |= get_user(req->power_param.bw,
&u_req->power_param.bw);
ret |= get_user(req->power_param.freq_step,
&u_req->power_param.freq_step);
ret |= get_user(req->power_param.opp_step,
&u_req->power_param.opp_step);
ret |= get_user(req->power_param.core,
&u_req->power_param.core);
req->user_id = (unsigned long *)user;
if (req->request_id == 0x0) {
LOG_ERR("wrong request_id (0x%lx)\n",
(unsigned long)req->request_id);
vpu_free_request(req);
ret = -EFAULT;
goto out;
}
if (ret)
LOG_ERR("[ENQUE] get params failed, ret=%d\n", ret);
else if (req->buffer_count > VPU_MAX_NUM_PORTS) {
LOG_ERR("[ENQUE] %s, count=%d\n",
"wrong buffer count", req->buffer_count);
} else if (copy_from_user(req->buffers, u_req->buffers,
req->buffer_count * sizeof(struct vpu_buffer))) {
LOG_ERR("[ENQUE] %s, ret=%d\n",
"copy 'struct buffer' failed", ret);
} else if (copy_from_user(req->buf_ion_infos,
u_req->buf_ion_infos,
req->buffer_count * 3 * sizeof(uint64_t))) {
LOG_ERR("[ENQUE] %s, ret=%d\n",
"copy 'buf_share_fds' failed", ret);
} else if (vpu_put_request_to_pool(user, req)) {
LOG_ERR("[ENQUE] %s, ret=%d\n",
"push to user's queue failed", ret);
} else
break;
/* free the request, error happened here*/
vpu_free_request(req);
if (g_vpu_log_level > VpuLogThre_PERFORMANCE)
LOG_INF("[vpu] .VPU_IOCTL_ENQUE_REQUEST - ");
ret = -EFAULT;
break;
}
case VPU_IOCTL_DEQUE_REQUEST:
{
struct vpu_request *req;
uint64_t kernel_request_id;
struct vpu_request *u_req;
if (g_vpu_log_level > VpuLogThre_PERFORMANCE)
LOG_INF("[vpu] VPU_IOCTL_DEQUE_REQUEST + ");
u_req = (struct vpu_request *) arg;
#if 1
ret = get_user(kernel_request_id, &u_req->request_id);
if (ret) {
LOG_ERR("[REG] get 'req id' failed,%d\n", ret);
goto out;
}
LOG_DBG("[vpu] deque test: user_id_0x%lx, request_id_0x%lx",
(unsigned long)user,
(unsigned long)(kernel_request_id));
ret = vpu_get_request_from_queue(user, kernel_request_id, &req);
#else
LOG_DBG("[vpu] dequee test: user_id_0x%lx, request_id_0x%lx",
(unsigned long)user,
(unsigned long)(u_req->request_id));
ret = vpu_get_request_from_queue(user, u_req->request_id, &req);
#endif
if (ret) {
LOG_ERR("[DEQUE] pop request failed, ret=%d\n", ret);
goto out;
}
ret = put_user(req->status, &u_req->status);
ret |= put_user(req->occupied_core, &u_req->occupied_core);
ret |= put_user(req->frame_magic, &u_req->frame_magic);
if (ret)
LOG_ERR("[DEQUE] update status failed, ret=%d\n", ret);
ret = vpu_free_request(req);
if (ret) {
LOG_ERR("[DEQUE] free request, ret=%d\n", ret);
goto out;
}
if (g_vpu_log_level > VpuLogThre_PERFORMANCE)
LOG_INF("[vpu] VPU_IOCTL_DEQUE_REQUEST - ");
break;
}
case VPU_IOCTL_FLUSH_REQUEST:
{
ret = vpu_flush_requests_from_queue(user);
if (ret) {
LOG_ERR("[FLUSH] flush request failed, ret=%d\n", ret);
goto out;
}
break;
}
case VPU_IOCTL_GET_ALGO_INFO:
{
LOG_WRN("DO NOT SUPPORT VPU_IOCTL_GET_ALGO_INFO");
break;
}
case VPU_IOCTL_REG_WRITE:
{
struct vpu_reg_values regs;
ret = copy_from_user(&regs, (void *) arg,
sizeof(struct vpu_reg_values));
if (ret) {
LOG_ERR("[REG] copy 'struct reg' failed,%d\n", ret);
goto out;
}
ret = vpu_write_register(&regs);
if (ret) {
LOG_ERR("[REG] write reg failed,%d\n", ret);
goto out;
}
break;
}
case VPU_IOCTL_LOCK:
{
LOG_WRN("DO NOT SUPPORT VPU_IOCTL_LOCK\n");
break;
}
case VPU_IOCTL_UNLOCK:
{
LOG_WRN("DO NOT SUPPORT VPU_IOCTL_LOCK\n");
break;
}
case VPU_IOCTL_LOAD_ALG_TO_POOL:
{
char name[32];
vpu_id_t algo_id[MTK_VPU_CORE];
int temp_algo_id;
struct vpu_algo *u_algo;
u_algo = (struct vpu_algo *) arg;
ret = copy_from_user(name, u_algo->name, (sizeof(char)*32));
if (ret) {
LOG_ERR("[GET_ALGO] copy 'name' failed, ret=%d\n", ret);
goto out;
}
name[(sizeof(char)*32) - 1] = '\0';
for (i = 0 ; i < MTK_VPU_CORE ; i++) {
temp_algo_id = vpu_get_algo_id_by_name(i, name);
if (temp_algo_id < 0) {
LOG_ERR("[GET_ALGO] %s, name=%s, id:%d\n",
"can not find algo",
name, temp_algo_id);
ret = -ESPIPE;
goto out;
} else {
LOG_DBG("[GET_ALGO] core(%d) name=%s, id=%d\n",
i, name, temp_algo_id);
}
algo_id[i] = (vpu_id_t)temp_algo_id;
}
ret = copy_to_user(u_algo->id, algo_id,
MTK_VPU_CORE * sizeof(vpu_id_t));
if (ret) {
LOG_ERR("[GET_ALGO] update id failed, ret=%d\n", ret);
goto out;
}
break;
}
case VPU_IOCTL_GET_CORE_STATUS:
{
struct vpu_status *u_status = (struct vpu_status *) arg;
struct vpu_status status;
ret = copy_from_user(&status, (void *) arg,
sizeof(struct vpu_status));
if (ret) {
LOG_ERR("[%s]copy 'struct vpu_status' failed ret=%d\n",
"GET_CORE_STATUS", ret);
goto out;
}
ret = vpu_get_core_status(&status);
if (ret) {
LOG_ERR("[%s] vpu_get_core_status failed, ret=%d\n",
"GET_CORE_STATUS", ret);
goto out;
}
ret = put_user(status.vpu_core_available,
(bool *)&(u_status->vpu_core_available));
ret |= put_user(status.pool_list_size,
(int *)&(u_status->pool_list_size));
if (ret) {
LOG_ERR("[%s] put to user failed, ret=%d\n",
"GET_CORE_STATUS", ret);
goto out;
}
break;
}
case VPU_IOCTL_OPEN_DEV_NOTICE:
{
struct vpu_dev_debug_info *dev_debug_info;
struct vpu_dev_debug_info *u_dev_debug_info;
ret = vpu_alloc_debug_info(&dev_debug_info);
if (ret) {
LOG_ERR("[%s] alloc debug_info failed, ret=%d\n",
"OPEN_DEV_NOTICE", ret);
goto out;
}
u_dev_debug_info = (struct vpu_dev_debug_info *) arg;
ret = get_user(dev_debug_info->dev_fd,
&u_dev_debug_info->dev_fd);
if (ret) {
LOG_ERR("[%s] copy 'dev_fd' failed, ret=%d\n",
"VPU_IOCTL_OPEN_DEV_NOTICE", ret);
}
ret |= copy_from_user(dev_debug_info->callername,
u_dev_debug_info->callername, (sizeof(char)*32));
dev_debug_info->callername[(sizeof(char)*32) - 1] = '\0';
if (ret) {
LOG_ERR("[%s] copy 'callname' failed, ret=%d\n",
"VPU_IOCTL_OPEN_DEV_NOTICE", ret);
}
dev_debug_info->open_pid = user->open_pid;
dev_debug_info->open_tgid = user->open_tgid;
if (g_vpu_log_level > Log_ALGO_OPP_INFO) {
LOG_INF("[%s] user:%s/%d. pid(%d/%d)\n",
"VPU_IOCTL_OPEN_DEV_NOTICE",
dev_debug_info->callername,
dev_debug_info->dev_fd,
dev_debug_info->open_pid,
dev_debug_info->open_tgid);
}
if (ret) {
/* error handle, free memory */
vpu_free_debug_info(dev_debug_info);
} else {
mutex_lock(&debug_list_mutex);
list_add_tail(vlist_link(dev_debug_info,
struct vpu_dev_debug_info),
&device_debug_list);
mutex_unlock(&debug_list_mutex);
}
break;
}
case VPU_IOCTL_CLOSE_DEV_NOTICE:
{
int dev_fd;
struct list_head *head = NULL;
struct vpu_dev_debug_info *dbg_info;
bool get = false;
ret = copy_from_user(&dev_fd, (void *) arg, sizeof(int));
if (ret) {
LOG_ERR("[%s] copy 'dev_fd' failed, ret=%d\n",
"CLOSE_DEV_NOTICE", ret);
goto out;
}
mutex_lock(&debug_list_mutex);
list_for_each(head, &device_debug_list)
{
dbg_info = vlist_node_of(head,
struct vpu_dev_debug_info);
if (g_vpu_log_level > Log_ALGO_OPP_INFO) {
LOG_INF("[%s] req_user-> = %s/%d, %d/%d\n",
"VPU_IOCTL_CLOSE_DEV_NOTICE",
dbg_info->callername,
dbg_info->dev_fd, dbg_info->open_pid,
dbg_info->open_tgid);
}
if (dbg_info->dev_fd == dev_fd) {
LOG_DBG("[%s] get fd(%d) to close\n",
"VPU_IOCTL_CLOSE_DEV_NOTICE", dev_fd);
get = true;
break;
}
}
if (g_vpu_log_level > Log_ALGO_OPP_INFO) {
LOG_INF("[%s] user:%d. pid(%d/%d), get(%d)\n",
"VPU_IOCTL_CLOSE_DEV_NOTICE",
dev_fd, user->open_pid,
user->open_tgid, get);
}
if (get) {
list_del_init(vlist_link(dbg_info,
struct vpu_dev_debug_info));
vpu_free_debug_info(dbg_info);
mutex_unlock(&debug_list_mutex);
} else {
mutex_unlock(&debug_list_mutex);
LOG_ERR("[%s] want to close wrong fd(%d)\n",
"VPU_IOCTL_CLOSE_DEV_NOTICE", dev_fd);
ret = -ESPIPE;
goto out;
}
break;
}
#ifdef CONFIG_MTK_GZ_SUPPORT_SDSP
case VPU_IOCTL_SDSP_SEC_LOCK:
{
LOG_WRN("SDSP_SEC_LOCK mutex in\n");
if (sdsp_locked == false) {
LOG_WRN("SDSP_SEC_LOCK mutex in\n");
for (i = 0 ; i < MTK_VPU_CORE ; i++)
mutex_lock(&vpu_device->sdsp_control_mutex[i]);
sdsp_locked = true;
LOG_WRN("SDSP_SEC_LOCK mutex-m lock\n");
ret = vpu_sdsp_get_power(user);
LOG_WRN("SDSP_POWER_ON %s\n", ret == 0?"done":"fail");
/* Disable IRQ */
for (i = 0 ; i < MTK_VPU_CORE ; i++)
disable_irq(vpu_device->irq_num[i]);
if (false == vpu_is_available()) {
LOG_WRN("vpu_queue is not empty!!\n");
if (ret == 0)
ret = 1;
}
if (ret >= 0) {
int sdsp_state;
sdsp_state = mtee_sdsp_enable(1);
if (sdsp_state != 0) {
LOG_ERR("mtee sdsp enable fail(%d)\n",
sdsp_state);
ret = -1;
}
}
} else
LOG_WRN("SDSP_SEC_LOCK fail, duel lock!!\n");
break;
}
case VPU_IOCTL_SDSP_SEC_UNLOCK:
{
if (sdsp_locked == true) {
ret = mtee_sdsp_enable(0);
if (ret != 0) {
LOG_ERR("mtee_sdsp_enable(0) fail(%d)\n", ret);
break;
}
ret = vpu_sdsp_put_power(user);
LOG_WRN("DSP_SEC_UNLOCK %s\n", ret == 0?"done":"fail");
/* Enable IRQ */
for (i = 0 ; i < MTK_VPU_CORE ; i++) {
enable_irq(vpu_device->irq_num[i]);
mutex_unlock(
&vpu_device->sdsp_control_mutex[i]);
}
sdsp_locked = false;
LOG_WRN("DSP_SEC_UNLOCK mutex-m unlock\n");
} else
LOG_WRN("DSP_SEC_UNLOCK fail!!\n");
break;
}
#endif
default:
LOG_WRN("ioctl: no such command!\n");
ret = -EINVAL;
break;
}
out:
if (ret) {
LOG_ERR("fail, cmd(%d), pid(%d), %s=%s, %s=%d, %s=%d\n",
cmd, user->open_pid,
"process", current->comm,
"pid", current->pid,
"tgid", current->tgid);
}
return ret;
}
static int vpu_release(struct inode *inode, struct file *flip)
{
struct vpu_user *user = flip->private_data;
LOG_INF("%s cnt(%d) user->id : 0x%lx, tids(%d/%d)\n", __func__,
vpu_num_users,
(unsigned long)(user->id),
user->open_pid, user->open_tgid);
vpu_delete_user(user);
mutex_lock(&debug_list_mutex);
vpu_num_users--;
mutex_unlock(&debug_list_mutex);
if ((vpu_num_users > 10) && (g_vpu_log_level > Log_ALGO_OPP_INFO))
vpu_dump_device_dbg(NULL);
return 0;
}
static int vpu_mmap(struct file *flip, struct vm_area_struct *vma)
{
unsigned long length = 0;
unsigned int pfn = 0x0;
length = (vma->vm_end - vma->vm_start);
vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot);
pfn = vma->vm_pgoff << PAGE_SHIFT;
LOG_INF("%s:%s=0x%lx,%s=0x%x,%s=0x%lx,%s=0x%lx,%s=0x%lx,%s=0x%lx\n",
__func__,
"vm_pgoff", vma->vm_pgoff,
"pfn", pfn,
"phy", vma->vm_pgoff << PAGE_SHIFT,
"vm_start", vma->vm_start,
"vm_end", vma->vm_end,
"length", length);
switch (pfn) {
default:
LOG_ERR("illegal hw addr for mmap!\n");
return -EAGAIN;
}
}
static dev_t vpu_devt;
static struct cdev *vpu_chardev;
static struct class *vpu_class;
static int vpu_num_devs;
static inline void vpu_unreg_chardev(void)
{
/* Release char driver */
if (vpu_chardev != NULL) {
cdev_del(vpu_chardev);
vpu_chardev = NULL;
}
unregister_chrdev_region(vpu_devt, 1);
}
static inline int vpu_reg_chardev(void)
{
int ret = 0;
ret = alloc_chrdev_region(&vpu_devt, 0, 1, VPU_DEV_NAME);
if ((ret) < 0) {
LOG_ERR("alloc_chrdev_region failed, %d\n", ret);
return ret;
}
/* Allocate driver */
vpu_chardev = cdev_alloc();
if (vpu_chardev == NULL) {
LOG_ERR("cdev_alloc failed\n");
ret = -ENOMEM;
goto out;
}
/* Attatch file operation. */
cdev_init(vpu_chardev, &vpu_fops);
vpu_chardev->owner = THIS_MODULE;
/* Add to system */
ret = cdev_add(vpu_chardev, vpu_devt, 1);
if ((ret) < 0) {
LOG_ERR("Attatch file operation failed, %d\n", ret);
goto out;
}
out:
if (ret < 0)
vpu_unreg_chardev();
return ret;
}
/******************************************************************************
* platform_driver
*****************************************************************************/
static int vpu_probe(struct platform_device *pdev)
{
int ret = 0;
int core = 0;
struct device *dev;
struct device_node *node;
unsigned int irq_info[3]; /* Record interrupts info from device tree */
struct device_node *smi_node = NULL;
struct device_node *ipu_conn_node = NULL;
core = vpu_num_devs;
smi_node = NULL;
if (core == MTK_VPU_CORE) {
LOG_INF("%s(%d), core(%d) = core(%d)+2 in FPGA, return\n",
"vpu_num_devs", vpu_num_devs, core, MTK_VPU_CORE);
return ret;
}
if (core < 0) {
LOG_ERR("%s(%d), wrong core(%d) = vpu_num_devs(%d), return\n",
"vpu_num_devs", core, vpu_num_devs);
return -1;
}
node = pdev->dev.of_node;
vpu_device->dev[vpu_num_devs] = &pdev->dev;
LOG_INF("probe 0, pdev id = %d name = %s, name = %s\n",
pdev->id, pdev->name,
pdev->dev.of_node->name);
#ifdef MTK_VPU_FPGA_PORTING
if (vpu_num_devs == 0) {
/* get register address */
#ifdef NEVER
if (strncmp(node->name, "ipu_conn",
strlen("ipu_conn"))) {
vpu_device->vpu_syscfg_base =
(unsigned long) of_iomap(node, 0);
} else if (strncmp(node->name, "ipu_adl",
strlen("ipu_adl"))) {
vpu_device->vpu_adlctrl_base =
(unsigned long) of_iomap(node, 0);
} else if (strncmp(node->name, "ipu_vcore",
strlen("ipu_vcore"))) {
vpu_device->vpu_vcorecfg_base =
(unsigned long) of_iomap(node, 0);
}
#endif /* NEVER */
struct device_node *tmp;
tmp = of_find_compatible_node(NULL, NULL, "mediatek,ipu_conn");
vpu_device->vpu_syscfg_base = (unsigned long) of_iomap(tmp, 0);
tmp = of_find_compatible_node(NULL, NULL, "mediatek,ipu_adl");
vpu_device->vpu_adlctrl_base = (unsigned long) of_iomap(tmp, 0);
tmp = of_find_compatible_node(NULL, NULL, "mediatek,ipu_vcore");
vpu_device->vpu_vcorecfg_base =
(unsigned long) of_iomap(tmp, 0);
LOG_DBG("probe 2, %s=0x%lx, %s=0x%lx, %s=0x%lx\n",
"vpu_syscfg_base", vpu_device->vpu_syscfg_base,
"vpu_adlctrl_base", vpu_device->vpu_adlctrl_base,
"vpu_vcorecfg_base", vpu_device->vpu_vcorecfg_base);
}
#endif
#ifdef MTK_VPU_EMULATOR
/* emulator will fill vpu_base and bin_base */
vpu_init_emulator(vpu_device);
#else
LOG_INF("[vpu] core/total : %d/%d\n", core, MTK_VPU_CORE);
vpu_device->vpu_base[core] = (unsigned long) of_iomap(node, 0);
/* get physical address of binary data loaded by LK */
if (vpu_num_devs == 0) {
uint32_t phy_addr;
uint32_t phy_size;
if (of_property_read_u32(node, "bin-phy-addr", &phy_addr) ||
of_property_read_u32(node, "bin-size", &phy_size)) {
LOG_ERR("fail to get phy address of vpu binary!\n");
return -ENODEV;
}
/* bin_base for cpu read/write */
vpu_device->bin_base =
(unsigned long)ioremap_wc(phy_addr, phy_size);
vpu_device->bin_pa = phy_addr;
vpu_device->bin_size = phy_size;
LOG_INF("probe core:%d, %s=0x%lx %s=0x%x, %s=0x%x\n",
core,
"bin_base", (unsigned long)vpu_device->bin_base,
"phy_addr", phy_addr,
"phy_size", phy_size);
/* get smi common register */
#ifdef MTK_VPU_SMI_DEBUG_ON
smi_node = of_find_compatible_node(NULL, NULL,
"mediatek,smi_common");
vpu_device->smi_cmn_base =
(unsigned long) of_iomap(smi_node, 0);
#endif
ipu_conn_node = of_find_compatible_node(NULL, NULL,
"mediatek,ipu_conn");
vpu_device->vpu_syscfg_base =
(unsigned long) of_iomap(ipu_conn_node, 0);
LOG_INF("probe, smi_cmn_base: 0x%lx, ipu_conn:0x%lx\n",
vpu_device->smi_cmn_base,
vpu_device->vpu_syscfg_base);
}
#endif
vpu_device->irq_num[core] = irq_of_parse_and_map(node, 0);
LOG_DBG("probe 2, [%d/%d] %s=0x%lx, %s=0x%lx, %s=%d, %s:%p\n",
vpu_num_devs, core,
"vpu_base", vpu_device->vpu_base[core],
"bin_base", vpu_device->bin_base,
"irq_num", vpu_device->irq_num[core],
"pdev", vpu_device->dev[vpu_num_devs]);
if (vpu_device->irq_num[core] > 0) {
/* Get IRQ Flag from device node */
if (of_property_read_u32_array(pdev->dev.of_node,
"interrupts", irq_info, ARRAY_SIZE(irq_info))) {
dev_err(&pdev->dev, "get irq flags from DTS fail!!\n");
return -ENODEV;
}
vpu_device->irq_trig_level = irq_info[2];
LOG_DBG("vpu_device->irq_trig_level (0x%x), %s(0x%x)\n",
vpu_device->irq_trig_level,
"IRQF_TRIGGER_NONE", IRQF_TRIGGER_NONE);
}
vpu_init_algo(vpu_device);
LOG_DBG("[probe] [%d] init_algo done\n", core);
vpu_init_hw(core, vpu_device);
LOG_DBG("[probe] [%d] init_hw done\n", core);
vpu_init_reg(core, vpu_device);
LOG_DBG("[probe] [%d] init_reg done\n", core);
#ifdef MET_POLLING_MODE
vpu_init_profile(core, vpu_device);
LOG_DBG("[probe] [%d] vpu_init_profile done\n", core);
#endif
if (!my_ion_client)
my_ion_client = ion_client_create(g_ion_device, "vpu_drv");
/* Only register char driver in the 1st time */
if (++vpu_num_devs == 1) {
vpu_init_debug(vpu_device);
/* Register char driver */
ret = vpu_reg_chardev();
if (ret) {
dev_err(vpu_device->dev[vpu_num_devs-1], "register char failed");
return ret;
}
/* Create class register */
vpu_class = class_create(THIS_MODULE, "vpudrv");
if (IS_ERR(vpu_class)) {
ret = PTR_ERR(vpu_class);
LOG_ERR("Unable to create class, err = %d\n", ret);
goto out;
}
dev = device_create(vpu_class, NULL, vpu_devt,
NULL, VPU_DEV_NAME);
if (IS_ERR(dev)) {
ret = PTR_ERR(dev);
dev_err(vpu_device->dev[vpu_num_devs-1],
"Failed to create device: /dev/%s, err = %d",
VPU_DEV_NAME, ret);
goto out;
}
vpu_wake_lock = wakeup_source_register(NULL, "vpu_lock_wakelock");
out:
if (ret < 0)
vpu_unreg_chardev();
}
LOG_DBG("probe vpu driver\n");
return ret;
}
static int vpu_remove(struct platform_device *pDev)
{
/* struct resource *pRes;*/
int irq_num, i;
/* */
vpu_uninit_hw();
/* */
#ifdef MET_POLLING_MODE
vpu_uninit_profile();
#endif
if (my_ion_client) {
ion_client_destroy(my_ion_client);
my_ion_client = NULL;
}
/* */
LOG_DBG("remove vpu driver");
/* unregister char driver. */
vpu_unreg_chardev();
/* Release IRQ */
for (i = 0 ; i < MTK_VPU_CORE ; i++)
disable_irq(vpu_device->irq_num[i]);
irq_num = platform_get_irq(pDev, 0);
free_irq(irq_num, (void *) vpu_chardev);
device_destroy(vpu_class, vpu_devt);
class_destroy(vpu_class);
vpu_class = NULL;
return 0;
}
static int vpu_suspend(struct platform_device *pdev, pm_message_t mesg)
{
int i = 0;
for (i = 0 ; i < MTK_VPU_CORE ; i++)
vpu_quick_suspend(i);
return 0;
}
static int vpu_resume(struct platform_device *pdev)
{
return 0;
}
static int __init VPU_INIT(void)
{
int ret = 0, i = 0;
vpu_device = kzalloc(sizeof(struct vpu_device), GFP_KERNEL);
sdsp_locked = false;
INIT_LIST_HEAD(&vpu_device->user_list);
mutex_init(&vpu_device->user_mutex);
/*Add for mutex check mechanism issue*/
mutex_init(&vpu_device->sdsp_control_mutex[0]);
mutex_init(&vpu_device->sdsp_control_mutex[1]);
/* */
for (i = 0 ; i < MTK_VPU_CORE ; i++) {
INIT_LIST_HEAD(&vpu_device->pool_list[i]);
mutex_init(&vpu_device->servicepool_mutex[i]);
vpu_device->servicepool_list_size[i] = 0;
vpu_device->service_core_available[i] = true;
}
INIT_LIST_HEAD(&vpu_device->cmnpool_list);
mutex_init(&vpu_device->commonpool_mutex);
vpu_device->commonpool_list_size = 0;
init_waitqueue_head(&vpu_device->req_wait);
INIT_LIST_HEAD(&device_debug_list);
mutex_init(&debug_list_mutex);
/* Register M4U callback */
LOG_DBG("register m4u callback");
#ifdef CONFIG_MTK_M4U
m4u_register_fault_callback(VPU_PORT_OF_IOMMU,
vpu_m4u_fault_callback, NULL);
#else
mtk_iommu_register_fault_callback(VPU_PORT_OF_IOMMU,
vpu_m4u_fault_callback,
NULL);
#endif
LOG_DBG("platform_driver_register start\n");
if (platform_driver_register(&vpu_driver)) {
LOG_ERR("failed to register VPU driver");
return -ENODEV;
}
LOG_DBG("platform_driver_register finsish\n");
return ret;
}
static void __exit VPU_EXIT(void)
{
platform_driver_unregister(&vpu_driver);
kfree(vpu_device);
/* Un-Register M4U callback */
LOG_DBG("un-register m4u callback");
#ifdef CONFIG_MTK_M4U
m4u_unregister_fault_callback(VPU_PORT_OF_IOMMU);
#else
mtk_iommu_unregister_fault_callback(VPU_PORT_OF_IOMMU);
#endif
}
module_init(VPU_INIT);
module_exit(VPU_EXIT);
MODULE_DESCRIPTION("MTK VPU Driver");
MODULE_AUTHOR("SW6");
MODULE_LICENSE("GPL");
Reference in a new issue Copy permalink