ppmgr: The cut table caused a crash. [1/1]

PD#SWPL-6557

Problem:
The cut table caused a crash.

Solution:
modify dma flag

Verify:
on X301

Change-Id: Ic0ced1f4934d1125c56a79d1e102de9d2e02a528
Signed-off-by: renjiang.han <renjiang.han@amlogic.com>

diff --git a/drivers/amlogic/media/video_processor/ppmgr/ppmgr_vpp.c b/drivers/amlogic/media/video_processor/ppmgr/ppmgr_vpp.c
index 7949165..225b887 100644 (file)
--- a/drivers/amlogic/media/video_processor/ppmgr/ppmgr_vpp.c
+++ b/drivers/amlogic/media/video_processor/ppmgr/ppmgr_vpp.c
@@ -177,9 +177,11 @@ static u32 tb_buffer_len = TB_DETECT_BUFFER_MAX_SIZE;
 static atomic_t tb_reset_flag;
 static u32 tb_init_mute;
 static atomic_t tb_skip_flag;
+static atomic_t tb_run_flag;
 static bool tb_quit_flag;
 static struct TB_DetectFuncPtr *gfunc;
 static int tb_buffer_init(void);
+static int tb_buffer_uninit(void);
 #endif
 
 const struct vframe_receiver_op_s *vf_ppmgr_reg_provider(void);
@@ -3076,7 +3078,9 @@ static int ppmgr_task(void *data)
                                        /* wait tb task done */
                                        while ((tb_buff_wptr >= 5)
                                                && (tb_buff_rptr
-                                               <= tb_buff_wptr - 5))
+                                               <= tb_buff_wptr - 5)
+                                               && (atomic_read(&tb_run_flag)
+                                               == 1))
                                                usleep_range(
                                                        4000, 5000);
                                        atomic_set(&detect_status,
@@ -3166,7 +3170,9 @@ static int ppmgr_task(void *data)
                                                "tb detect skip case1\n");
                                        goto SKIP_DETECT;
                                }
-                               if (tb_buff_wptr < tb_buffer_len) {
+                               if ((tb_buff_wptr < tb_buffer_len)
+                                       && (atomic_read(&tb_run_flag)
+                                               == 1)) {
                                        ret = process_vf_tb_detect(
                                                vf, context, &ge2d_config);
                                } else {
@@ -3263,6 +3269,9 @@ SKIP_DETECT:
        }
 
        destroy_ge2d_work_queue(context);
+#ifdef PPMGR_TB_DETECT
+       tb_buffer_uninit();
+#endif
        ppmgr_buffer_uninit();
        while (!kthread_should_stop()) {
                /* may not call stop, wait..
@@ -3742,6 +3751,7 @@ static void tb_detect_init(void)
        atomic_set(&tb_detect_flag, TB_DETECT_NC);
        atomic_set(&tb_reset_flag, 0);
        atomic_set(&tb_skip_flag, 0);
+       atomic_set(&tb_run_flag, 1);
        tb_detect_last_flag = TB_DETECT_NC;
        tb_buff_wptr = 0;
        tb_buff_rptr = 0;
@@ -3840,9 +3850,9 @@ static int tb_task(void *data)
                        atomic_set(&detect_status, tb_done);
                }
        }
+       atomic_set(&tb_run_flag, 0);
        while (!kthread_should_stop())
                usleep_range(9000, 10000);
-       tb_buffer_uninit();
        return 0;
 }