From patchwork Fri Aug 6 04:15:27 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Tzung-Bi Shih X-Patchwork-Id: 493505 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-26.3 required=3.0 tests=BAYES_00,DKIMWL_WL_MED, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_CR_TRAILER, INCLUDES_PATCH, MAILING_LIST_MULTI, SPF_HELO_NONE, SPF_PASS, URIBL_BLOCKED,USER_AGENT_GIT,USER_IN_DEF_DKIM_WL autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 80B06C4338F for ; Fri, 6 Aug 2021 04:16:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 6121A611C6 for ; Fri, 6 Aug 2021 04:16:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242773AbhHFEQt (ORCPT ); Fri, 6 Aug 2021 00:16:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:60094 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242769AbhHFEQs (ORCPT ); Fri, 6 Aug 2021 00:16:48 -0400 Received: from mail-qv1-xf4a.google.com (mail-qv1-xf4a.google.com [IPv6:2607:f8b0:4864:20::f4a]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B835EC061798 for ; Thu, 5 Aug 2021 21:16:33 -0700 (PDT) Received: by mail-qv1-xf4a.google.com with SMTP id cb3-20020ad456230000b02903319321d1e3so4081847qvb.14 for ; Thu, 05 Aug 2021 21:16:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20161025; h=date:in-reply-to:message-id:mime-version:references:subject:from:to :cc; bh=8Hj7QTRReMR49Q7lc0c4H0i3GEtDIS+A93iyijxdtkc=; b=i/aqDAMmJvUhGYMLV/ne9VpNbheuN9lmvGoKX8m+T3jyGp8fYo27Sf2lsVKyyZwSS5 arybNcPP3GGKQNdecTtDa7L/4jOHsbGNGZTOaOCPCMtDf1da/G/4JV0k27WM/Gg16+xX dQbLAi/k1bFXa/JBVoSr9rLbutywDqwhdkqXMVVqxCJGlgfpzfLNareQf1JcUaJbKHoe 40EuiH9WLZkqI7ePcxh6NdD+dsIw7xbBPz8l0I7RuZRNRBHYRhtV/klG9tW/N3rA9V+l uChufrE/rf1h1Z6DxYJHlZ8nJzWA//mlQpzRDLPSgMQGfTLb6jW+ZWaIsQG/1/boBxGe 57pw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:in-reply-to:message-id:mime-version :references:subject:from:to:cc; bh=8Hj7QTRReMR49Q7lc0c4H0i3GEtDIS+A93iyijxdtkc=; b=DQ2Bs4cJcjtKObWjqsQF7Ggk7H8u9p5lsB63ep222tgiV2l9TscNNyda3tx8qIs5Gu prZ6R7iax6SDzb8X/fflyo46dHj+rcs5Z0IBYPjoBQZcioPQqzNVg3tgltuEMvjZ7SLd +Sg+uipf3d69s59APIYXB9rAIz3Rc6xtPUza+1V5D70keJLvT5Fc497Kcs9hhJFhu/4N 8PTG2DjC63LDE9Dfxa/OdXuNGsr7pBReDS8glJFBmME/yqGz+6SvLKKLJPNUtHCzw/iD kB+nGTT8LMmJyyxhFp+RG6hAiCtp84RRgsh/yITgxNUxv+jA7JlyNzL4Y2sabYh1Y9xs HBNw== X-Gm-Message-State: AOAM531yVZIFkql57yAaBErrQ7C16LqKy+B9xFo7imbiaafklxPLPqUg I021e14aI0s6ma0YZfS5qgmVD/Jk293F X-Google-Smtp-Source: ABdhPJwNVTFkkqxdEn8Wn3ptjZ8V2Tx41+I9jG7A2tDSKfu5K7d5dH4nKTomyaojJkxdTnmw9aY94XoIplkM X-Received: from tzungbi-z840.tpe.corp.google.com ([2401:fa00:1:10:ebc2:859f:4153:773e]) (user=tzungbi job=sendgmr) by 2002:ad4:4b25:: with SMTP id s5mr9077382qvw.52.1628223392975; Thu, 05 Aug 2021 21:16:32 -0700 (PDT) Date: Fri, 6 Aug 2021 12:15:27 +0800 In-Reply-To: <20210806041530.4170869-1-tzungbi@google.com> Message-Id: <20210806041530.4170869-12-tzungbi@google.com> Mime-Version: 1.0 References: <20210806041530.4170869-1-tzungbi@google.com> X-Mailer: git-send-email 2.32.0.605.g8dce9f2422-goog Subject: [PATCH v7 11/14] media: mtk-vcodec: vdec: support stateless H.264 decoding From: Tzung-Bi Shih To: hverkuil-cisco@xs4all.nl, yunfei.dong@mediatek.com, acourbot@chromium.org Cc: tiffany.lin@mediatek.com, andrew-ct.chen@mediatek.com, dafna.hirschfeld@collabora.com, mchehab@kernel.org, linux-media@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-arm-kernel@lists.infradead.org, tzungbi@google.com Precedence: bulk List-ID: X-Mailing-List: linux-media@vger.kernel.org From: Yunfei Dong Add support for H.264 decoding using the stateless API, as supported by MT8183. This support takes advantage of the V4L2 H.264 reference list builders. Signed-off-by: Yunfei Dong [acourbot: refactor, cleanup and split] Co-developed-by: Alexandre Courbot Signed-off-by: Alexandre Courbot [tzungbi: fix missing kerneldoc issue] Signed-off-by: Tzung-Bi Shih --- drivers/media/platform/Kconfig | 1 + drivers/media/platform/mtk-vcodec/Makefile | 1 + .../mtk-vcodec/vdec/vdec_h264_req_if.c | 774 ++++++++++++++++++ .../media/platform/mtk-vcodec/vdec_drv_if.c | 3 + .../media/platform/mtk-vcodec/vdec_drv_if.h | 1 + 5 files changed, 780 insertions(+) create mode 100644 drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c diff --git a/drivers/media/platform/Kconfig b/drivers/media/platform/Kconfig index 157c924686e4..ae1468aa1b4e 100644 --- a/drivers/media/platform/Kconfig +++ b/drivers/media/platform/Kconfig @@ -314,6 +314,7 @@ config VIDEO_MEDIATEK_VCODEC select V4L2_MEM2MEM_DEV select VIDEO_MEDIATEK_VCODEC_VPU if VIDEO_MEDIATEK_VPU select VIDEO_MEDIATEK_VCODEC_SCP if MTK_SCP + select V4L2_H264 help Mediatek video codec driver provides HW capability to encode and decode in a range of video formats on MT8173 diff --git a/drivers/media/platform/mtk-vcodec/Makefile b/drivers/media/platform/mtk-vcodec/Makefile index 4ba93d838ab6..ca8e9e7a9c4e 100644 --- a/drivers/media/platform/mtk-vcodec/Makefile +++ b/drivers/media/platform/mtk-vcodec/Makefile @@ -7,6 +7,7 @@ obj-$(CONFIG_VIDEO_MEDIATEK_VCODEC) += mtk-vcodec-dec.o \ mtk-vcodec-dec-y := vdec/vdec_h264_if.o \ vdec/vdec_vp8_if.o \ vdec/vdec_vp9_if.o \ + vdec/vdec_h264_req_if.o \ mtk_vcodec_dec_drv.o \ vdec_drv_if.o \ vdec_vpu_if.o \ diff --git a/drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c b/drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c new file mode 100644 index 000000000000..2396b9a6d6e5 --- /dev/null +++ b/drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c @@ -0,0 +1,774 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include +#include +#include +#include +#include + +#include "../mtk_vcodec_util.h" +#include "../mtk_vcodec_dec.h" +#include "../mtk_vcodec_intr.h" +#include "../vdec_drv_base.h" +#include "../vdec_drv_if.h" +#include "../vdec_vpu_if.h" + +#define BUF_PREDICTION_SZ (64 * 4096) +#define MB_UNIT_LEN 16 + +/* get used parameters for sps/pps */ +#define GET_MTK_VDEC_FLAG(cond, flag) \ + { dst_param->cond = ((src_param->flags & (flag)) ? (1) : (0)); } +#define GET_MTK_VDEC_PARAM(param) \ + { dst_param->param = src_param->param; } +/* motion vector size (bytes) for every macro block */ +#define HW_MB_STORE_SZ 64 + +#define H264_MAX_FB_NUM 17 +#define H264_MAX_MV_NUM 32 +#define HDR_PARSING_BUF_SZ 1024 + +/** + * struct mtk_h264_dpb_info - h264 dpb information + * @y_dma_addr: Y bitstream physical address + * @c_dma_addr: CbCr bitstream physical address + * @reference_flag: reference picture flag (short/long term reference picture) + * @field: field picture flag + */ +struct mtk_h264_dpb_info { + dma_addr_t y_dma_addr; + dma_addr_t c_dma_addr; + int reference_flag; + int field; +}; + +/* + * struct mtk_h264_sps_param - parameters for sps + */ +struct mtk_h264_sps_param { + unsigned char chroma_format_idc; + unsigned char bit_depth_luma_minus8; + unsigned char bit_depth_chroma_minus8; + unsigned char log2_max_frame_num_minus4; + unsigned char pic_order_cnt_type; + unsigned char log2_max_pic_order_cnt_lsb_minus4; + unsigned char max_num_ref_frames; + unsigned char separate_colour_plane_flag; + unsigned short pic_width_in_mbs_minus1; + unsigned short pic_height_in_map_units_minus1; + unsigned int max_frame_nums; + unsigned char qpprime_y_zero_transform_bypass_flag; + unsigned char delta_pic_order_always_zero_flag; + unsigned char frame_mbs_only_flag; + unsigned char mb_adaptive_frame_field_flag; + unsigned char direct_8x8_inference_flag; + unsigned char reserved[3]; +}; + +/* + * struct mtk_h264_pps_param - parameters for pps + */ +struct mtk_h264_pps_param { + unsigned char num_ref_idx_l0_default_active_minus1; + unsigned char num_ref_idx_l1_default_active_minus1; + unsigned char weighted_bipred_idc; + char pic_init_qp_minus26; + char chroma_qp_index_offset; + char second_chroma_qp_index_offset; + unsigned char entropy_coding_mode_flag; + unsigned char pic_order_present_flag; + unsigned char deblocking_filter_control_present_flag; + unsigned char constrained_intra_pred_flag; + unsigned char weighted_pred_flag; + unsigned char redundant_pic_cnt_present_flag; + unsigned char transform_8x8_mode_flag; + unsigned char scaling_matrix_present_flag; + unsigned char reserved[2]; +}; + +struct slice_api_h264_scaling_matrix { + unsigned char scaling_list_4x4[6][16]; + unsigned char scaling_list_8x8[6][64]; +}; + +struct slice_h264_dpb_entry { + unsigned long long reference_ts; + unsigned short frame_num; + unsigned short pic_num; + /* Note that field is indicated by v4l2_buffer.field */ + int top_field_order_cnt; + int bottom_field_order_cnt; + unsigned int flags; /* V4L2_H264_DPB_ENTRY_FLAG_* */ +}; + +/* + * struct slice_api_h264_decode_param - parameters for decode. + */ +struct slice_api_h264_decode_param { + struct slice_h264_dpb_entry dpb[16]; + unsigned short num_slices; + unsigned short nal_ref_idc; + unsigned char ref_pic_list_p0[32]; + unsigned char ref_pic_list_b0[32]; + unsigned char ref_pic_list_b1[32]; + int top_field_order_cnt; + int bottom_field_order_cnt; + unsigned int flags; /* V4L2_H264_DECODE_PARAM_FLAG_* */ +}; + +/* + * struct mtk_h264_dec_slice_param - parameters for decode current frame + */ +struct mtk_h264_dec_slice_param { + struct mtk_h264_sps_param sps; + struct mtk_h264_pps_param pps; + struct slice_api_h264_scaling_matrix scaling_matrix; + struct slice_api_h264_decode_param decode_params; + struct mtk_h264_dpb_info h264_dpb_info[16]; +}; + +/** + * struct h264_fb - h264 decode frame buffer information + * @vdec_fb_va : virtual address of struct vdec_fb + * @y_fb_dma : dma address of Y frame buffer (luma) + * @c_fb_dma : dma address of C frame buffer (chroma) + * @poc : picture order count of frame buffer + * @reserved : for 8 bytes alignment + */ +struct h264_fb { + u64 vdec_fb_va; + u64 y_fb_dma; + u64 c_fb_dma; + s32 poc; + u32 reserved; +}; + +/** + * struct vdec_h264_dec_info - decode information + * @dpb_sz : decoding picture buffer size + * @resolution_changed : resoltion change happen + * @realloc_mv_buf : flag to notify driver to re-allocate mv buffer + * @cap_num_planes : number planes of capture buffer + * @bs_dma : Input bit-stream buffer dma address + * @y_fb_dma : Y frame buffer dma address + * @c_fb_dma : C frame buffer dma address + * @vdec_fb_va : VDEC frame buffer struct virtual address + */ +struct vdec_h264_dec_info { + u32 dpb_sz; + u32 resolution_changed; + u32 realloc_mv_buf; + u32 cap_num_planes; + u64 bs_dma; + u64 y_fb_dma; + u64 c_fb_dma; + u64 vdec_fb_va; +}; + +/** + * struct vdec_h264_vsi - shared memory for decode information exchange + * between VPU and Host. + * The memory is allocated by VPU then mapping to Host + * in vpu_dec_init() and freed in vpu_dec_deinit() + * by VPU. + * AP-W/R : AP is writer/reader on this item + * VPU-W/R: VPU is write/reader on this item + * @pred_buf_dma : HW working predication buffer dma address (AP-W, VPU-R) + * @mv_buf_dma : HW working motion vector buffer dma address (AP-W, VPU-R) + * @dec : decode information (AP-R, VPU-W) + * @pic : picture information (AP-R, VPU-W) + * @crop : crop information (AP-R, VPU-W) + * @h264_slice_param : the parameters that hardware use to decode + */ +struct vdec_h264_vsi { + u64 pred_buf_dma; + u64 mv_buf_dma[H264_MAX_MV_NUM]; + struct vdec_h264_dec_info dec; + struct vdec_pic_info pic; + struct v4l2_rect crop; + struct mtk_h264_dec_slice_param h264_slice_params; +}; + +/** + * struct vdec_h264_slice_inst - h264 decoder instance + * @num_nalu : how many nalus be decoded + * @ctx : point to mtk_vcodec_ctx + * @pred_buf : HW working predication buffer + * @mv_buf : HW working motion vector buffer + * @vpu : VPU instance + * @vsi_ctx : Local VSI data for this decoding context + * @h264_slice_param : the parameters that hardware use to decode + * @dpb : decoded picture buffer used to store reference buffer information + */ +struct vdec_h264_slice_inst { + unsigned int num_nalu; + struct mtk_vcodec_ctx *ctx; + struct mtk_vcodec_mem pred_buf; + struct mtk_vcodec_mem mv_buf[H264_MAX_MV_NUM]; + struct vdec_vpu_inst vpu; + struct vdec_h264_vsi vsi_ctx; + struct mtk_h264_dec_slice_param h264_slice_param; + + struct v4l2_h264_dpb_entry dpb[16]; +}; + +static void *get_ctrl_ptr(struct mtk_vcodec_ctx *ctx, int id) +{ + struct v4l2_ctrl *ctrl = v4l2_ctrl_find(&ctx->ctrl_hdl, id); + + return ctrl->p_cur.p; +} + +static void get_h264_dpb_list(struct vdec_h264_slice_inst *inst, + struct mtk_h264_dec_slice_param *slice_param) +{ + struct vb2_queue *vq; + struct vb2_buffer *vb; + struct vb2_v4l2_buffer *vb2_v4l2; + u64 index; + + vq = v4l2_m2m_get_vq(inst->ctx->m2m_ctx, V4L2_BUF_TYPE_VIDEO_CAPTURE_MPLANE); + + for (index = 0; index < ARRAY_SIZE(slice_param->decode_params.dpb); index++) { + const struct slice_h264_dpb_entry *dpb; + int vb2_index; + + dpb = &slice_param->decode_params.dpb[index]; + if (!(dpb->flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE)) { + slice_param->h264_dpb_info[index].reference_flag = 0; + continue; + } + + vb2_index = vb2_find_timestamp(vq, dpb->reference_ts, 0); + if (vb2_index < 0) { + mtk_vcodec_err(inst, "Reference invalid: dpb_index(%lld) reference_ts(%lld)", + index, dpb->reference_ts); + continue; + } + /* 1 for short term reference, 2 for long term reference */ + if (!(dpb->flags & V4L2_H264_DPB_ENTRY_FLAG_LONG_TERM)) + slice_param->h264_dpb_info[index].reference_flag = 1; + else + slice_param->h264_dpb_info[index].reference_flag = 2; + + vb = vq->bufs[vb2_index]; + vb2_v4l2 = container_of(vb, struct vb2_v4l2_buffer, vb2_buf); + slice_param->h264_dpb_info[index].field = vb2_v4l2->field; + + slice_param->h264_dpb_info[index].y_dma_addr = + vb2_dma_contig_plane_dma_addr(vb, 0); + if (inst->ctx->q_data[MTK_Q_DATA_DST].fmt->num_planes == 2) { + slice_param->h264_dpb_info[index].c_dma_addr = + vb2_dma_contig_plane_dma_addr(vb, 1); + } + } +} + +static void get_h264_sps_parameters(struct mtk_h264_sps_param *dst_param, + const struct v4l2_ctrl_h264_sps *src_param) +{ + GET_MTK_VDEC_PARAM(chroma_format_idc); + GET_MTK_VDEC_PARAM(bit_depth_luma_minus8); + GET_MTK_VDEC_PARAM(bit_depth_chroma_minus8); + GET_MTK_VDEC_PARAM(log2_max_frame_num_minus4); + GET_MTK_VDEC_PARAM(pic_order_cnt_type); + GET_MTK_VDEC_PARAM(log2_max_pic_order_cnt_lsb_minus4); + GET_MTK_VDEC_PARAM(max_num_ref_frames); + GET_MTK_VDEC_PARAM(pic_width_in_mbs_minus1); + GET_MTK_VDEC_PARAM(pic_height_in_map_units_minus1); + + GET_MTK_VDEC_FLAG(separate_colour_plane_flag, + V4L2_H264_SPS_FLAG_SEPARATE_COLOUR_PLANE); + GET_MTK_VDEC_FLAG(qpprime_y_zero_transform_bypass_flag, + V4L2_H264_SPS_FLAG_QPPRIME_Y_ZERO_TRANSFORM_BYPASS); + GET_MTK_VDEC_FLAG(delta_pic_order_always_zero_flag, + V4L2_H264_SPS_FLAG_DELTA_PIC_ORDER_ALWAYS_ZERO); + GET_MTK_VDEC_FLAG(frame_mbs_only_flag, + V4L2_H264_SPS_FLAG_FRAME_MBS_ONLY); + GET_MTK_VDEC_FLAG(mb_adaptive_frame_field_flag, + V4L2_H264_SPS_FLAG_MB_ADAPTIVE_FRAME_FIELD); + GET_MTK_VDEC_FLAG(direct_8x8_inference_flag, + V4L2_H264_SPS_FLAG_DIRECT_8X8_INFERENCE); +} + +static void get_h264_pps_parameters(struct mtk_h264_pps_param *dst_param, + const struct v4l2_ctrl_h264_pps *src_param) +{ + GET_MTK_VDEC_PARAM(num_ref_idx_l0_default_active_minus1); + GET_MTK_VDEC_PARAM(num_ref_idx_l1_default_active_minus1); + GET_MTK_VDEC_PARAM(weighted_bipred_idc); + GET_MTK_VDEC_PARAM(pic_init_qp_minus26); + GET_MTK_VDEC_PARAM(chroma_qp_index_offset); + GET_MTK_VDEC_PARAM(second_chroma_qp_index_offset); + + GET_MTK_VDEC_FLAG(entropy_coding_mode_flag, + V4L2_H264_PPS_FLAG_ENTROPY_CODING_MODE); + GET_MTK_VDEC_FLAG(pic_order_present_flag, + V4L2_H264_PPS_FLAG_BOTTOM_FIELD_PIC_ORDER_IN_FRAME_PRESENT); + GET_MTK_VDEC_FLAG(weighted_pred_flag, + V4L2_H264_PPS_FLAG_WEIGHTED_PRED); + GET_MTK_VDEC_FLAG(deblocking_filter_control_present_flag, + V4L2_H264_PPS_FLAG_DEBLOCKING_FILTER_CONTROL_PRESENT); + GET_MTK_VDEC_FLAG(constrained_intra_pred_flag, + V4L2_H264_PPS_FLAG_CONSTRAINED_INTRA_PRED); + GET_MTK_VDEC_FLAG(redundant_pic_cnt_present_flag, + V4L2_H264_PPS_FLAG_REDUNDANT_PIC_CNT_PRESENT); + GET_MTK_VDEC_FLAG(transform_8x8_mode_flag, + V4L2_H264_PPS_FLAG_TRANSFORM_8X8_MODE); + GET_MTK_VDEC_FLAG(scaling_matrix_present_flag, + V4L2_H264_PPS_FLAG_SCALING_MATRIX_PRESENT); +} + +static void +get_h264_scaling_matrix(struct slice_api_h264_scaling_matrix *dst_matrix, + const struct v4l2_ctrl_h264_scaling_matrix *src_matrix) +{ + memcpy(dst_matrix->scaling_list_4x4, src_matrix->scaling_list_4x4, + sizeof(dst_matrix->scaling_list_4x4)); + + memcpy(dst_matrix->scaling_list_8x8, src_matrix->scaling_list_8x8, + sizeof(dst_matrix->scaling_list_8x8)); +} + +static void +get_h264_decode_parameters(struct slice_api_h264_decode_param *dst_params, + const struct v4l2_ctrl_h264_decode_params *src_params, + const struct v4l2_h264_dpb_entry dpb[V4L2_H264_NUM_DPB_ENTRIES]) +{ + int i; + + for (i = 0; i < ARRAY_SIZE(dst_params->dpb); i++) { + struct slice_h264_dpb_entry *dst_entry = &dst_params->dpb[i]; + const struct v4l2_h264_dpb_entry *src_entry = &dpb[i]; + + dst_entry->reference_ts = src_entry->reference_ts; + dst_entry->frame_num = src_entry->frame_num; + dst_entry->pic_num = src_entry->pic_num; + dst_entry->top_field_order_cnt = src_entry->top_field_order_cnt; + dst_entry->bottom_field_order_cnt = + src_entry->bottom_field_order_cnt; + dst_entry->flags = src_entry->flags; + } + + /* + * num_slices is a leftover from the old H.264 support and is ignored + * by the firmware. + */ + dst_params->num_slices = 0; + dst_params->nal_ref_idc = src_params->nal_ref_idc; + dst_params->top_field_order_cnt = src_params->top_field_order_cnt; + dst_params->bottom_field_order_cnt = src_params->bottom_field_order_cnt; + dst_params->flags = src_params->flags; +} + +static bool dpb_entry_match(const struct v4l2_h264_dpb_entry *a, + const struct v4l2_h264_dpb_entry *b) +{ + return a->top_field_order_cnt == b->top_field_order_cnt && + a->bottom_field_order_cnt == b->bottom_field_order_cnt; +} + +/* + * Move DPB entries of dec_param that refer to a frame already existing in dpb + * into the already existing slot in dpb, and move other entries into new slots. + * + * This function is an adaptation of the similarly-named function in + * hantro_h264.c. + */ +static void update_dpb(const struct v4l2_ctrl_h264_decode_params *dec_param, + struct v4l2_h264_dpb_entry *dpb) +{ + DECLARE_BITMAP(new, ARRAY_SIZE(dec_param->dpb)) = { 0, }; + DECLARE_BITMAP(in_use, ARRAY_SIZE(dec_param->dpb)) = { 0, }; + DECLARE_BITMAP(used, ARRAY_SIZE(dec_param->dpb)) = { 0, }; + unsigned int i, j; + + /* Disable all entries by default, and mark the ones in use. */ + for (i = 0; i < ARRAY_SIZE(dec_param->dpb); i++) { + if (dpb[i].flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE) + set_bit(i, in_use); + dpb[i].flags &= ~V4L2_H264_DPB_ENTRY_FLAG_ACTIVE; + } + + /* Try to match new DPB entries with existing ones by their POCs. */ + for (i = 0; i < ARRAY_SIZE(dec_param->dpb); i++) { + const struct v4l2_h264_dpb_entry *ndpb = &dec_param->dpb[i]; + + if (!(ndpb->flags & V4L2_H264_DPB_ENTRY_FLAG_ACTIVE)) + continue; + + /* + * To cut off some comparisons, iterate only on target DPB + * entries were already used. + */ + for_each_set_bit(j, in_use, ARRAY_SIZE(dec_param->dpb)) { + struct v4l2_h264_dpb_entry *cdpb; + + cdpb = &dpb[j]; + if (!dpb_entry_match(cdpb, ndpb)) + continue; + + *cdpb = *ndpb; + set_bit(j, used); + /* Don't reiterate on this one. */ + clear_bit(j, in_use); + break; + } + + if (j == ARRAY_SIZE(dec_param->dpb)) + set_bit(i, new); + } + + /* For entries that could not be matched, use remaining free slots. */ + for_each_set_bit(i, new, ARRAY_SIZE(dec_param->dpb)) { + const struct v4l2_h264_dpb_entry *ndpb = &dec_param->dpb[i]; + struct v4l2_h264_dpb_entry *cdpb; + + /* + * Both arrays are of the same sizes, so there is no way + * we can end up with no space in target array, unless + * something is buggy. + */ + j = find_first_zero_bit(used, ARRAY_SIZE(dec_param->dpb)); + if (WARN_ON(j >= ARRAY_SIZE(dec_param->dpb))) + return; + + cdpb = &dpb[j]; + *cdpb = *ndpb; + set_bit(j, used); + } +} + +/* + * The firmware expects unused reflist entries to have the value 0x20. + */ +static void fixup_ref_list(u8 *ref_list, size_t num_valid) +{ + memset(&ref_list[num_valid], 0x20, 32 - num_valid); +} + +static void get_vdec_decode_parameters(struct vdec_h264_slice_inst *inst) +{ + const struct v4l2_ctrl_h264_decode_params *dec_params = + get_ctrl_ptr(inst->ctx, V4L2_CID_STATELESS_H264_DECODE_PARAMS); + const struct v4l2_ctrl_h264_sps *sps = + get_ctrl_ptr(inst->ctx, V4L2_CID_STATELESS_H264_SPS); + const struct v4l2_ctrl_h264_pps *pps = + get_ctrl_ptr(inst->ctx, V4L2_CID_STATELESS_H264_PPS); + const struct v4l2_ctrl_h264_scaling_matrix *scaling_matrix = + get_ctrl_ptr(inst->ctx, V4L2_CID_STATELESS_H264_SCALING_MATRIX); + struct mtk_h264_dec_slice_param *slice_param = &inst->h264_slice_param; + struct v4l2_h264_reflist_builder reflist_builder; + u8 *p0_reflist = slice_param->decode_params.ref_pic_list_p0; + u8 *b0_reflist = slice_param->decode_params.ref_pic_list_b0; + u8 *b1_reflist = slice_param->decode_params.ref_pic_list_b1; + + update_dpb(dec_params, inst->dpb); + + get_h264_sps_parameters(&slice_param->sps, sps); + get_h264_pps_parameters(&slice_param->pps, pps); + get_h264_scaling_matrix(&slice_param->scaling_matrix, scaling_matrix); + get_h264_decode_parameters(&slice_param->decode_params, dec_params, + inst->dpb); + get_h264_dpb_list(inst, slice_param); + + /* Build the reference lists */ + v4l2_h264_init_reflist_builder(&reflist_builder, dec_params, sps, + inst->dpb); + v4l2_h264_build_p_ref_list(&reflist_builder, p0_reflist); + v4l2_h264_build_b_ref_lists(&reflist_builder, b0_reflist, b1_reflist); + /* Adapt the built lists to the firmware's expectations */ + fixup_ref_list(p0_reflist, reflist_builder.num_valid); + fixup_ref_list(b0_reflist, reflist_builder.num_valid); + fixup_ref_list(b1_reflist, reflist_builder.num_valid); + + memcpy(&inst->vsi_ctx.h264_slice_params, slice_param, + sizeof(inst->vsi_ctx.h264_slice_params)); +} + +static unsigned int get_mv_buf_size(unsigned int width, unsigned int height) +{ + int unit_size = (width / MB_UNIT_LEN) * (height / MB_UNIT_LEN) + 8; + + return HW_MB_STORE_SZ * unit_size; +} + +static int allocate_predication_buf(struct vdec_h264_slice_inst *inst) +{ + int err; + + inst->pred_buf.size = BUF_PREDICTION_SZ; + err = mtk_vcodec_mem_alloc(inst->ctx, &inst->pred_buf); + if (err) { + mtk_vcodec_err(inst, "failed to allocate ppl buf"); + return err; + } + + inst->vsi_ctx.pred_buf_dma = inst->pred_buf.dma_addr; + return 0; +} + +static void free_predication_buf(struct vdec_h264_slice_inst *inst) +{ + struct mtk_vcodec_mem *mem = &inst->pred_buf; + + mtk_vcodec_debug_enter(inst); + + inst->vsi_ctx.pred_buf_dma = 0; + if (mem->va) + mtk_vcodec_mem_free(inst->ctx, mem); +} + +static int alloc_mv_buf(struct vdec_h264_slice_inst *inst, + struct vdec_pic_info *pic) +{ + int i; + int err; + struct mtk_vcodec_mem *mem = NULL; + unsigned int buf_sz = get_mv_buf_size(pic->buf_w, pic->buf_h); + + mtk_v4l2_debug(3, "size = 0x%lx", buf_sz); + for (i = 0; i < H264_MAX_MV_NUM; i++) { + mem = &inst->mv_buf[i]; + if (mem->va) + mtk_vcodec_mem_free(inst->ctx, mem); + mem->size = buf_sz; + err = mtk_vcodec_mem_alloc(inst->ctx, mem); + if (err) { + mtk_vcodec_err(inst, "failed to allocate mv buf"); + return err; + } + inst->vsi_ctx.mv_buf_dma[i] = mem->dma_addr; + } + + return 0; +} + +static void free_mv_buf(struct vdec_h264_slice_inst *inst) +{ + int i; + struct mtk_vcodec_mem *mem; + + for (i = 0; i < H264_MAX_MV_NUM; i++) { + inst->vsi_ctx.mv_buf_dma[i] = 0; + mem = &inst->mv_buf[i]; + if (mem->va) + mtk_vcodec_mem_free(inst->ctx, mem); + } +} + +static void get_pic_info(struct vdec_h264_slice_inst *inst, + struct vdec_pic_info *pic) +{ + struct mtk_vcodec_ctx *ctx = inst->ctx; + + ctx->picinfo.buf_w = (ctx->picinfo.pic_w + 15) & 0xFFFFFFF0; + ctx->picinfo.buf_h = (ctx->picinfo.pic_h + 31) & 0xFFFFFFE0; + ctx->picinfo.fb_sz[0] = ctx->picinfo.buf_w * ctx->picinfo.buf_h; + ctx->picinfo.fb_sz[1] = ctx->picinfo.fb_sz[0] >> 1; + inst->vsi_ctx.dec.cap_num_planes = + ctx->q_data[MTK_Q_DATA_DST].fmt->num_planes; + + *pic = ctx->picinfo; + mtk_vcodec_debug(inst, "pic(%d, %d), buf(%d, %d)", + ctx->picinfo.pic_w, ctx->picinfo.pic_h, + ctx->picinfo.buf_w, ctx->picinfo.buf_h); + mtk_vcodec_debug(inst, "Y/C(%d, %d)", ctx->picinfo.fb_sz[0], + ctx->picinfo.fb_sz[1]); + + if (ctx->last_decoded_picinfo.pic_w != ctx->picinfo.pic_w || + ctx->last_decoded_picinfo.pic_h != ctx->picinfo.pic_h) { + inst->vsi_ctx.dec.resolution_changed = true; + if (ctx->last_decoded_picinfo.buf_w != ctx->picinfo.buf_w || + ctx->last_decoded_picinfo.buf_h != ctx->picinfo.buf_h) + inst->vsi_ctx.dec.realloc_mv_buf = true; + + mtk_v4l2_debug(1, "ResChg: (%d %d) : old(%d, %d) -> new(%d, %d)", + inst->vsi_ctx.dec.resolution_changed, + inst->vsi_ctx.dec.realloc_mv_buf, + ctx->last_decoded_picinfo.pic_w, + ctx->last_decoded_picinfo.pic_h, + ctx->picinfo.pic_w, ctx->picinfo.pic_h); + } +} + +static void get_crop_info(struct vdec_h264_slice_inst *inst, struct v4l2_rect *cr) +{ + cr->left = inst->vsi_ctx.crop.left; + cr->top = inst->vsi_ctx.crop.top; + cr->width = inst->vsi_ctx.crop.width; + cr->height = inst->vsi_ctx.crop.height; + + mtk_vcodec_debug(inst, "l=%d, t=%d, w=%d, h=%d", + cr->left, cr->top, cr->width, cr->height); +} + +static void get_dpb_size(struct vdec_h264_slice_inst *inst, unsigned int *dpb_sz) +{ + *dpb_sz = inst->vsi_ctx.dec.dpb_sz; + mtk_vcodec_debug(inst, "sz=%d", *dpb_sz); +} + +static int vdec_h264_slice_init(struct mtk_vcodec_ctx *ctx) +{ + struct vdec_h264_slice_inst *inst; + int err; + + inst = kzalloc(sizeof(*inst), GFP_KERNEL); + if (!inst) + return -ENOMEM; + + inst->ctx = ctx; + + inst->vpu.id = SCP_IPI_VDEC_H264; + inst->vpu.ctx = ctx; + + err = vpu_dec_init(&inst->vpu); + if (err) { + mtk_vcodec_err(inst, "vdec_h264 init err=%d", err); + goto error_free_inst; + } + + memcpy(&inst->vsi_ctx, inst->vpu.vsi, sizeof(inst->vsi_ctx)); + inst->vsi_ctx.dec.resolution_changed = true; + inst->vsi_ctx.dec.realloc_mv_buf = true; + + err = allocate_predication_buf(inst); + if (err) + goto error_deinit; + + mtk_vcodec_debug(inst, "struct size = %d,%d,%d,%d\n", + sizeof(struct mtk_h264_sps_param), + sizeof(struct mtk_h264_pps_param), + sizeof(struct mtk_h264_dec_slice_param), + sizeof(struct mtk_h264_dpb_info)); + + mtk_vcodec_debug(inst, "H264 Instance >> %p", inst); + + ctx->drv_handle = inst; + return 0; + +error_deinit: + vpu_dec_deinit(&inst->vpu); + +error_free_inst: + kfree(inst); + return err; +} + +static void vdec_h264_slice_deinit(void *h_vdec) +{ + struct vdec_h264_slice_inst *inst = h_vdec; + + mtk_vcodec_debug_enter(inst); + + vpu_dec_deinit(&inst->vpu); + free_predication_buf(inst); + free_mv_buf(inst); + + kfree(inst); +} + +static int vdec_h264_slice_decode(void *h_vdec, struct mtk_vcodec_mem *bs, + struct vdec_fb *fb, bool *res_chg) +{ + struct vdec_h264_slice_inst *inst = h_vdec; + const struct v4l2_ctrl_h264_decode_params *dec_params = + get_ctrl_ptr(inst->ctx, V4L2_CID_STATELESS_H264_DECODE_PARAMS); + struct vdec_vpu_inst *vpu = &inst->vpu; + u32 data[2]; + u64 y_fb_dma; + u64 c_fb_dma; + int err; + + /* bs NULL means flush decoder */ + if (!bs) + return vpu_dec_reset(vpu); + + y_fb_dma = fb ? (u64)fb->base_y.dma_addr : 0; + c_fb_dma = fb ? (u64)fb->base_c.dma_addr : 0; + + mtk_vcodec_debug(inst, "+ [%d] FB y_dma=%llx c_dma=%llx va=%p", + ++inst->num_nalu, y_fb_dma, c_fb_dma, fb); + + inst->vsi_ctx.dec.bs_dma = (uint64_t)bs->dma_addr; + inst->vsi_ctx.dec.y_fb_dma = y_fb_dma; + inst->vsi_ctx.dec.c_fb_dma = c_fb_dma; + inst->vsi_ctx.dec.vdec_fb_va = (u64)(uintptr_t)fb; + + get_vdec_decode_parameters(inst); + data[0] = bs->size; + /* + * Reconstruct the first byte of the NAL unit, as the firmware requests + * that information to be passed even though it is present in the stream + * itself... + */ + data[1] = (dec_params->nal_ref_idc << 5) | + ((dec_params->flags & V4L2_H264_DECODE_PARAM_FLAG_IDR_PIC) + ? 0x5 : 0x1); + + *res_chg = inst->vsi_ctx.dec.resolution_changed; + if (*res_chg) { + mtk_vcodec_debug(inst, "- resolution changed -"); + if (inst->vsi_ctx.dec.realloc_mv_buf) { + err = alloc_mv_buf(inst, &inst->ctx->picinfo); + inst->vsi_ctx.dec.realloc_mv_buf = false; + if (err) + goto err_free_fb_out; + } + *res_chg = false; + } + + memcpy(inst->vpu.vsi, &inst->vsi_ctx, sizeof(inst->vsi_ctx)); + err = vpu_dec_start(vpu, data, 2); + if (err) + goto err_free_fb_out; + + /* wait decoder done interrupt */ + err = mtk_vcodec_wait_for_done_ctx(inst->ctx, + MTK_INST_IRQ_RECEIVED, + WAIT_INTR_TIMEOUT_MS); + if (err) + goto err_free_fb_out; + vpu_dec_end(vpu); + + memcpy(&inst->vsi_ctx, inst->vpu.vsi, sizeof(inst->vsi_ctx)); + mtk_vcodec_debug(inst, "\n - NALU[%d]", inst->num_nalu); + return 0; + +err_free_fb_out: + mtk_vcodec_err(inst, "\n - NALU[%d] err=%d -\n", inst->num_nalu, err); + return err; +} + +static int vdec_h264_slice_get_param(void *h_vdec, enum vdec_get_param_type type, void *out) +{ + struct vdec_h264_slice_inst *inst = h_vdec; + + switch (type) { + case GET_PARAM_PIC_INFO: + get_pic_info(inst, out); + break; + + case GET_PARAM_DPB_SIZE: + get_dpb_size(inst, out); + break; + + case GET_PARAM_CROP_INFO: + get_crop_info(inst, out); + break; + + default: + mtk_vcodec_err(inst, "invalid get parameter type=%d", type); + return -EINVAL; + } + + return 0; +} + +const struct vdec_common_if vdec_h264_slice_if = { + .init = vdec_h264_slice_init, + .decode = vdec_h264_slice_decode, + .get_param = vdec_h264_slice_get_param, + .deinit = vdec_h264_slice_deinit, +}; diff --git a/drivers/media/platform/mtk-vcodec/vdec_drv_if.c b/drivers/media/platform/mtk-vcodec/vdec_drv_if.c index b18743b906ea..42008243ceac 100644 --- a/drivers/media/platform/mtk-vcodec/vdec_drv_if.c +++ b/drivers/media/platform/mtk-vcodec/vdec_drv_if.c @@ -19,6 +19,9 @@ int vdec_if_init(struct mtk_vcodec_ctx *ctx, unsigned int fourcc) int ret = 0; switch (fourcc) { + case V4L2_PIX_FMT_H264_SLICE: + ctx->dec_if = &vdec_h264_slice_if; + break; case V4L2_PIX_FMT_H264: ctx->dec_if = &vdec_h264_if; break; diff --git a/drivers/media/platform/mtk-vcodec/vdec_drv_if.h b/drivers/media/platform/mtk-vcodec/vdec_drv_if.h index ec8f4e8d3d23..d467e8af4a84 100644 --- a/drivers/media/platform/mtk-vcodec/vdec_drv_if.h +++ b/drivers/media/platform/mtk-vcodec/vdec_drv_if.h @@ -55,6 +55,7 @@ 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_vp8_if; extern const struct vdec_common_if vdec_vp9_if;