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video: driver: add fence support

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Add fence support for decoder output buffers for
the consumer to use it to improve latency.

Change-Id: I7384b4a9793248988a2d2d546a535f26636d5bb3
Signed-off-by: Maheshwar Ajja <quic_majja@quicinc.com>
This commit is contained in:
Maheshwar Ajja
2022-01-19 20:54:17 -08:00
committed by Gerrit - the friendly Code Review server
parent 4b2e594b7b
commit ef829ce44f
8 changed files with 233 additions and 3 deletions
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18
driver/vidc/inc/msm_vidc_internal.h
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@@ -9,6 +9,9 @@
#include <linux/version.h>
#include <linux/bits.h>
#include <linux/workqueue.h>
#include <linux/spinlock.h>
#include <linux/sync_file.h>
#include <linux/dma-fence.h>
#include <media/v4l2-dev.h>
#include <media/v4l2-device.h>
#include <media/v4l2-ioctl.h>
@@ -780,6 +783,20 @@ struct msm_vidc_power {
u32 fw_cf;
};
struct msm_vidc_fence_context {
char name[MAX_NAME_LENGTH];
u64 ctx_num;
u64 seq_num;
};
struct msm_vidc_fence {
struct dma_fence dma_fence;
char name[MAX_NAME_LENGTH];
spinlock_t lock;
struct sync_file *sync_file;
int fd;
};
struct msm_vidc_alloc {
struct list_head list;
enum msm_vidc_buffer_type type;
@@ -827,6 +844,7 @@ struct msm_vidc_buffer {
u32 flags;
u64 timestamp;
enum msm_vidc_buffer_attributes attr;
struct msm_vidc_fence *fence;
};
struct msm_vidc_buffers {