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videodisplay: fix kernel panic caused by present fence. [1/1]

Browse Source 
PD#SWPL-215901

Problem:
fix kernel panic caused by present fence.

Solution:
fix kernel panic caused by present fence.

Verify:
TXHD2

Change-Id: Ibd952eb7080f43d4d1241581c5678982bd00ed8e
Signed-off-by: Jian Cao <jian.cao@amlogic.com>
This commit is contained in:
Jian Cao
2025-06-05 07:46:26 +00:00
committed by gerrit autosubmit
parent 3a98cb06b2
commit 4ecc61dafa
3 changed files with 9 additions and 0 deletions
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drivers/media/video_processor/videodisplay/videodisplay_process.c
+5
View File
@@ -2965,6 +2965,8 @@ static void vframe_display(struct videodisplay_dev *dev,
dev->last_file = (struct file *)frame_info->dmabuf;
vf->vc_private = vd_private_q_pop(dev);
vf->vc_private->present_fence = frame_info->present_fence;
if (vf->vf_ext)
((struct vframe_s *)vf->vf_ext)->vc_private = vf->vc_private;
vf->file_vf = (struct file *)(frame_info->dmabuf);
vf->repeat_count = 0;
dev->vd_prepare_last = vd_prepare;
@@ -3488,6 +3490,9 @@ static struct vframe_s *vd_vf_get(void *op_arg)
enable_prelink = dim_get_pre_link();
#endif
if (vf->vc_private) {
vd_print(dev->index, PRINT_OTHER, "%s:vc_p:%px, present_fence:%px\n",
__func__, vf->vc_private, vf->vc_private->present_fence);
vsync_index_diff = vf->vc_private->vsync_index - dev->last_vsync_index;
dev->last_vsync_index = vf->vc_private->vsync_index;
if (vf->frame_index < dev->last_vf_index) {
drivers/media/video_sink/video_common.h
+1
View File
@@ -32,6 +32,7 @@ extern struct vd_proc_info_t vd_proc_amdv;
#define DEBUG_FLAG_COMMON_SAFA BIT(5)
#define DEBUG_FLAG_COMMON_PER_PREVSYNC BIT(6)
#define DEBUG_FLAG_COMMON_LCEVC BIT(7)
#define DEBUG_FLAG_COMMON_FENCE BIT(9)
extern struct vd_proc_info_t vd_proc_amdv;
extern struct vd_proc_amvecm_info_t vd_proc_amvecm;
drivers/media/video_sink/video_func.c
+3
View File
@@ -2986,6 +2986,9 @@ static void signal_present_fence(u32 layer_id)
if (dispbuf && dispbuf->vc_private) {
vc = dispbuf->vc_private;
if (vc->present_fence) {
if (debug_common_flag & DEBUG_FLAG_COMMON_FENCE)
pr_info("vf:%px index:%d vc_private:%px present_fence:%px\n",
dispbuf, dispbuf->frame_index, vc, vc->present_fence);
dma_fence_signal(vc->present_fence);
dma_fence_put(vc->present_fence);
vc->present_fence = NULL;