Add a hantro_h264_get_ref_nbr() helper function to get the reference picture numbers. This will be used by the Rockchip VDPU2 H.264 driver. This idea was originally proposed by Jonas Karlman in "[RFC 09/12] media: hantro: Refactor G1 H264 code" posted a while ago. Link: https://lore.kernel.org/linux-media/HE1PR06MB401165F2BA0AD8A634FDFAF2ACBF0@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx/ Signed-off-by: Ezequiel Garcia <ezequiel@xxxxxxxxxxxxx> Tested-by: Alex Bee <knaerzche@xxxxxxxxx> --- drivers/staging/media/hantro/hantro_g1_h264_dec.c | 14 ++------------ drivers/staging/media/hantro/hantro_h264.c | 11 +++++++++++ drivers/staging/media/hantro/hantro_hw.h | 2 ++ 3 files changed, 15 insertions(+), 12 deletions(-) diff --git a/drivers/staging/media/hantro/hantro_g1_h264_dec.c b/drivers/staging/media/hantro/hantro_g1_h264_dec.c index 6faacfc44c7c..236ce24ca00c 100644 --- a/drivers/staging/media/hantro/hantro_g1_h264_dec.c +++ b/drivers/staging/media/hantro/hantro_g1_h264_dec.c @@ -126,7 +126,6 @@ static void set_params(struct hantro_ctx *ctx, struct vb2_v4l2_buffer *src_buf) static void set_ref(struct hantro_ctx *ctx) { - struct v4l2_h264_dpb_entry *dpb = ctx->h264_dec.dpb; const u8 *b0_reflist, *b1_reflist, *p_reflist; struct hantro_dev *vpu = ctx->dev; int reg_num; @@ -143,17 +142,8 @@ static void set_ref(struct hantro_ctx *ctx) * subsequential reference pictures. */ for (i = 0; i < HANTRO_H264_DPB_SIZE; i += 2) { - reg = 0; - if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM) - reg |= G1_REG_REF_PIC_REFER0_NBR(dpb[i].pic_num); - else - reg |= G1_REG_REF_PIC_REFER0_NBR(dpb[i].frame_num); - - if (dpb[i + 1].flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM) - reg |= G1_REG_REF_PIC_REFER1_NBR(dpb[i + 1].pic_num); - else - reg |= G1_REG_REF_PIC_REFER1_NBR(dpb[i + 1].frame_num); - + reg = G1_REG_REF_PIC_REFER0_NBR(hantro_h264_get_ref_nbr(ctx, i)) | + G1_REG_REF_PIC_REFER1_NBR(hantro_h264_get_ref_nbr(ctx, i + 1)); vdpu_write_relaxed(vpu, reg, G1_REG_REF_PIC(i / 2)); } diff --git a/drivers/staging/media/hantro/hantro_h264.c b/drivers/staging/media/hantro/hantro_h264.c index 6d72136760e7..0b4d2491be3b 100644 --- a/drivers/staging/media/hantro/hantro_h264.c +++ b/drivers/staging/media/hantro/hantro_h264.c @@ -348,6 +348,17 @@ dma_addr_t hantro_h264_get_ref_buf(struct hantro_ctx *ctx, return dma_addr; } +u16 hantro_h264_get_ref_nbr(struct hantro_ctx *ctx, unsigned int dpb_idx) +{ + const struct v4l2_h264_dpb_entry *dpb = &ctx->h264_dec.dpb[dpb_idx]; + + if (!(dpb->flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE)) + return 0; + if (dpb->flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM) + return dpb->pic_num; + return dpb->frame_num; +} + int hantro_h264_dec_prepare_run(struct hantro_ctx *ctx) { struct hantro_h264_dec_hw_ctx *h264_ctx = &ctx->h264_dec; diff --git a/drivers/staging/media/hantro/hantro_hw.h b/drivers/staging/media/hantro/hantro_hw.h index ce678fedaad6..7a8048afe357 100644 --- a/drivers/staging/media/hantro/hantro_hw.h +++ b/drivers/staging/media/hantro/hantro_hw.h @@ -238,6 +238,8 @@ void hantro_jpeg_enc_done(struct hantro_ctx *ctx); dma_addr_t hantro_h264_get_ref_buf(struct hantro_ctx *ctx, unsigned int dpb_idx); +u16 hantro_h264_get_ref_nbr(struct hantro_ctx *ctx, + unsigned int dpb_idx); int hantro_h264_dec_prepare_run(struct hantro_ctx *ctx); int hantro_g1_h264_dec_run(struct hantro_ctx *ctx); int hantro_h264_dec_init(struct hantro_ctx *ctx); -- 2.32.0
