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add some lock when rga is open & irq funtion

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This commit is contained in:
zsq
2012-04-26 16:09:56 +08:00
parent 8eb4953e33
commit fcf972ad81
1 changed files with 38 additions and 4 deletions
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42
drivers/video/rockchip/rga/rga_drv.c
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@@ -306,7 +306,6 @@ static int rga_get_result(rga_session *session, unsigned long arg)
}
static int rga_check_param(const struct rga_req *req)
{
/*RGA can support up to 8192*8192 resolution in RGB format,but we limit the image size to 8191*8191 here*/
@@ -710,6 +709,33 @@ static void rga_del_running_list_timeout(void)
}
static rga_mem_addr_sel(struct rga_req *req)
{
switch(req->src.format)
{
case RK_FORMAT_YCbCr_422_SP:
break;
case RK_FORMAT_YCbCr_422_P :
break;
case RK_FORMAT_YCbCr_420_SP :
break;
case RK_FORMAT_YCbCr_420_P :
break;
case RK_FORMAT_YCrCb_422_SP :
break;
case RK_FORMAT_YCrCb_422_P :
break;
case RK_FORMAT_YCrCb_420_SP :
break;
case RK_FORMAT_YCrCb_420_P :
break;
default :
break;
}
}
static int rga_blit(rga_session *session, struct rga_req *req)
{
@@ -927,6 +953,7 @@ static long rga_ioctl(struct file *file, uint32_t cmd, unsigned long arg)
static int rga_open(struct inode *inode, struct file *file)
{
unsigned long flag;
rga_session *session = (rga_session *)kmalloc(sizeof(rga_session), GFP_KERNEL);
if (NULL == session) {
pr_err("unable to allocate memory for rga_session.");
@@ -938,8 +965,11 @@ static int rga_open(struct inode *inode, struct file *file)
INIT_LIST_HEAD(&session->running);
INIT_LIST_HEAD(&session->list_session);
init_waitqueue_head(&session->wait);
/* no need to protect */
spin_lock_irqsave(&rga_service.lock, flag);
list_add_tail(&session->list_session, &rga_service.session);
spin_unlock_irqrestore(&rga_service.lock, flag);
atomic_set(&session->task_running, 0);
atomic_set(&session->num_done, 0);
file->private_data = (void *)session;
@@ -1001,12 +1031,16 @@ static irqreturn_t rga_irq(int irq, void *dev_id)
spin_lock_irqsave(&rga_service.lock, flag);
rga_del_running_list();
spin_unlock_irqrestore(&rga_service.lock, flag);
if(!list_empty(&rga_service.waiting))
{
spin_unlock_irqrestore(&rga_service.lock, flag);
rga_try_set_reg(1);
}
else
{
spin_unlock_irqrestore(&rga_service.lock, flag);
}
/* add cmd to cmd buf */
/*