media: mediatek: vcodec: support stateless H.264 decoding for mt8192

Adds h264 lat and core architecture driver for mt8192,
and the decode mode is frame based for stateless decoder.
Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
Tested-by: Nícolas F. R. A. Prado <nfraprado@collabora.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>

drivers/media/platform/mediatek/vcodec/Makefile

@@ -10,6 +10,7 @@ mtk-vcodec-dec-y := vdec/vdec_h264_if.o \
 		vdec/vdec_vp9_if.o \
 		vdec/vdec_h264_req_if.o \
 		vdec/vdec_h264_req_common.o \
+		vdec/vdec_h264_req_multi_if.o \
 		mtk_vcodec_dec_drv.o \
 		vdec_drv_if.o \
 		vdec_vpu_if.o \

drivers/media/platform/mediatek/vcodec/vdec_drv_if.c

@@ -16,11 +16,18 @@
 
 int vdec_if_init(struct mtk_vcodec_ctx *ctx, unsigned int fourcc)
 {
+	enum mtk_vdec_hw_arch hw_arch = ctx->dev->vdec_pdata->hw_arch;
 	int ret = 0;
 
 	switch (fourcc) {
 	case V4L2_PIX_FMT_H264_SLICE:
-		ctx->dec_if = &vdec_h264_slice_if;
+		if (!ctx->dev->vdec_pdata->is_subdev_supported) {
+			ctx->dec_if = &vdec_h264_slice_if;
+			ctx->hw_id = MTK_VDEC_CORE;
+		} else {
+			ctx->dec_if = &vdec_h264_slice_multi_if;
+			ctx->hw_id = IS_VDEC_LAT_ARCH(hw_arch) ? MTK_VDEC_LAT0 : MTK_VDEC_CORE;
+		}
 		break;
 	case V4L2_PIX_FMT_H264:
 		ctx->dec_if = &vdec_h264_if;

drivers/media/platform/mediatek/vcodec/vdec_drv_if.h

@@ -56,6 +56,7 @@ struct vdec_fb_node {
 
 extern const struct vdec_common_if vdec_h264_if;
 extern const struct vdec_common_if vdec_h264_slice_if;
+extern const struct vdec_common_if vdec_h264_slice_multi_if;
 extern const struct vdec_common_if vdec_vp8_if;
 extern const struct vdec_common_if vdec_vp9_if;
 

drivers/media/platform/mediatek/vcodec/vdec_vpu_if.h

@@ -28,6 +28,7 @@ struct mtk_vcodec_ctx;
  * @wq          : wait queue to wait VPU message ack
  * @handler     : ipi handler for each decoder
  * @codec_type     : use codec type to separate different codecs
+ * @capture_type:	used capture type to separate different capture format
  * @fb_sz  : frame buffer size of each plane
  */
 struct vdec_vpu_inst {
@@ -43,6 +44,7 @@ struct vdec_vpu_inst {
 	wait_queue_head_t wq;
 	mtk_vcodec_ipi_handler handler;
 	unsigned int codec_type;
+	unsigned int capture_type;
 	unsigned int fb_sz[2];
 };
 

include/linux/remoteproc/mtk_scp.h

@@ -41,6 +41,8 @@ enum scp_ipi_id {
 	SCP_IPI_ISP_FRAME,
 	SCP_IPI_FD_CMD,
 	SCP_IPI_CROS_HOST_CMD,
+	SCP_IPI_VDEC_LAT,
+	SCP_IPI_VDEC_CORE,
 	SCP_IPI_NS_SERVICE = 0xFF,
 	SCP_IPI_MAX = 0x100,
 };