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Tue, 28 Apr 2020 05:50:43 -0700 (PDT) From: Neil Armstrong To: linux-media@vger.kernel.org, hverkuil-cisco@xs4all.nl Subject: [PATCH 1/3] media: meson: vdec: enable mcrcc for VP9 Date: Tue, 28 Apr 2020 14:50:34 +0200 Message-Id: <20200428125036.9401-2-narmstrong@baylibre.com> X-Mailer: git-send-email 2.22.0 In-Reply-To: <20200428125036.9401-1-narmstrong@baylibre.com> References: <20200428125036.9401-1-narmstrong@baylibre.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200428_055046_839566_DBA8FCA5 X-CRM114-Status: GOOD ( 10.15 ) X-Spam-Score: 0.0 (/) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2a00:1450:4864:20:0:0:0:341 listed in] [list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Maxime Jourdan , linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Neil Armstrong Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+patchwork-linux-amlogic=patchwork.kernel.org@lists.infradead.org From: Maxime Jourdan The motion compensation reference cache controller allows caching parts of reference frames for faster decoding. Fixes: 00c43088aa68 ("media: meson: vdec: add VP9 decoder support") Signed-off-by: Maxime Jourdan Signed-off-by: Neil Armstrong --- drivers/staging/media/meson/vdec/codec_vp9.c | 31 ++++++++++++++++++++ 1 file changed, 31 insertions(+) diff --git a/drivers/staging/media/meson/vdec/codec_vp9.c b/drivers/staging/media/meson/vdec/codec_vp9.c index 60e4fc0052b3..897f5d7a6aad 100644 --- a/drivers/staging/media/meson/vdec/codec_vp9.c +++ b/drivers/staging/media/meson/vdec/codec_vp9.c @@ -854,6 +854,36 @@ static int codec_vp9_stop(struct amvdec_session *sess) return 0; } +/* + * Program LAST & GOLDEN frames into the motion compensation reference cache + * controller + */ +static void codec_vp9_set_mcrcc(struct amvdec_session *sess) +{ + struct amvdec_core *core = sess->core; + struct codec_vp9 *vp9 = sess->priv; + u32 val; + + /* Reset mcrcc */ + amvdec_write_dos(core, HEVCD_MCRCC_CTL1, 0x2); + /* Disable on I-frame */ + if (vp9->cur_frame->type == KEY_FRAME || vp9->cur_frame->intra_only) { + amvdec_write_dos(core, HEVCD_MCRCC_CTL1, 0x0); + return; + } + + amvdec_write_dos(core, HEVCD_MPP_ANC_CANVAS_ACCCONFIG_ADDR, BIT(1)); + val = amvdec_read_dos(core, HEVCD_MPP_ANC_CANVAS_DATA_ADDR) & 0xffff; + val |= (val << 16); + amvdec_write_dos(core, HEVCD_MCRCC_CTL2, val); + val = amvdec_read_dos(core, HEVCD_MPP_ANC_CANVAS_DATA_ADDR) & 0xffff; + val |= (val << 16); + amvdec_write_dos(core, HEVCD_MCRCC_CTL3, val); + + /* Enable mcrcc progressive-mode */ + amvdec_write_dos(core, HEVCD_MCRCC_CTL1, 0xff0); +} + static void codec_vp9_set_sao(struct amvdec_session *sess, struct vb2_buffer *vb) { @@ -1267,6 +1297,7 @@ static void codec_vp9_process_frame(struct amvdec_session *sess) amvdec_write_dos(core, HEVC_PARSER_PICTURE_SIZE, (vp9->height << 16) | vp9->width); + codec_vp9_set_mcrcc(sess); codec_vp9_set_sao(sess, &vp9->cur_frame->vbuf->vb2_buf); vp9_loop_filter_frame_init(core, &vp9->seg_4lf, From patchwork Tue Apr 28 12:50:35 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Neil Armstrong X-Patchwork-Id: 11514475 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 65E0714DD for ; 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The previous code could lead to a hardlock. - Reserve 4 margin buffers instead of 3, as apparently there are corner cases where 3 is not enough. Fixes: e9a3eb4819ca ("media: meson: vdec: add VP9 input support") Fixes: 00c43088aa68 ("media: meson: vdec: add VP9 decoder support") Signed-off-by: Maxime Jourdan Signed-off-by: Neil Armstrong --- drivers/staging/media/meson/vdec/codec_vp9.c | 41 +++++++++++++------- drivers/staging/media/meson/vdec/esparser.c | 24 ++++++------ 2 files changed, 38 insertions(+), 27 deletions(-) diff --git a/drivers/staging/media/meson/vdec/codec_vp9.c b/drivers/staging/media/meson/vdec/codec_vp9.c index 897f5d7a6aad..28a7e62e7371 100644 --- a/drivers/staging/media/meson/vdec/codec_vp9.c +++ b/drivers/staging/media/meson/vdec/codec_vp9.c @@ -1185,6 +1185,29 @@ static void codec_vp9_set_mc(struct amvdec_session *sess, amvdec_write_dos(core, VP9D_MPP_REF_SCALE_ENBL, scale); } +/* + * Get a free VB2 buffer that isn't currently used. + * VP9 references are held sometimes for so long that it's not really an option + * to hold them until they're no longer referenced, as it would delay the + * CAPTURE queue too much + */ +static struct vb2_v4l2_buffer *get_free_vbuf(struct amvdec_session *sess) +{ + struct codec_vp9 *vp9 = sess->priv; + struct vb2_v4l2_buffer *vbuf = v4l2_m2m_dst_buf_remove(sess->m2m_ctx); + struct vb2_v4l2_buffer *vbuf2; + + if (!vbuf) + return NULL; + + if (!codec_vp9_get_frame_by_idx(vp9, vbuf->vb2_buf.index)) + return vbuf; + + vbuf2 = get_free_vbuf(sess); + v4l2_m2m_buf_queue(sess->m2m_ctx, vbuf); + return vbuf2; +} + static struct vp9_frame *codec_vp9_get_new_frame(struct amvdec_session *sess) { struct codec_vp9 *vp9 = sess->priv; @@ -1196,25 +1219,13 @@ static struct vp9_frame *codec_vp9_get_new_frame(struct amvdec_session *sess) if (!new_frame) return NULL; - vbuf = v4l2_m2m_dst_buf_remove(sess->m2m_ctx); + vbuf = get_free_vbuf(sess); if (!vbuf) { dev_err(sess->core->dev, "No dst buffer available\n"); kfree(new_frame); return NULL; } - while (codec_vp9_get_frame_by_idx(vp9, vbuf->vb2_buf.index)) { - struct vb2_v4l2_buffer *old_vbuf = vbuf; - - vbuf = v4l2_m2m_dst_buf_remove(sess->m2m_ctx); - v4l2_m2m_buf_queue(sess->m2m_ctx, old_vbuf); - if (!vbuf) { - dev_err(sess->core->dev, "No dst buffer available\n"); - kfree(new_frame); - return NULL; - } - } - new_frame->vbuf = vbuf; new_frame->index = vbuf->vb2_buf.index; new_frame->intra_only = param->p.intra_only; @@ -1267,8 +1278,10 @@ static void codec_vp9_process_frame(struct amvdec_session *sess) codec_vp9_rm_noshow_frame(sess); vp9->cur_frame = codec_vp9_get_new_frame(sess); - if (!vp9->cur_frame) + if (!vp9->cur_frame) { + amvdec_abort(sess); return; + } pr_debug("frame %d: type: %08X; show_exist: %u; show: %u, intra_only: %u\n", vp9->cur_frame->index, diff --git a/drivers/staging/media/meson/vdec/esparser.c b/drivers/staging/media/meson/vdec/esparser.c index db7022707ff8..814bb0587e3b 100644 --- a/drivers/staging/media/meson/vdec/esparser.c +++ b/drivers/staging/media/meson/vdec/esparser.c @@ -301,21 +301,19 @@ esparser_queue(struct amvdec_session *sess, struct vb2_v4l2_buffer *vbuf) u32 offset; u32 pad_size; - /* - * When max ref frame is held by VP9, this should be -= 3 to prevent a - * shortage of CAPTURE buffers on the decoder side. - * For the future, a good enhancement of the way this is handled could - * be to notify new capture buffers to the decoding modules, so that - * they could pause when there is no capture buffer available and - * resume on this notification. - */ - if (sess->fmt_out->pixfmt == V4L2_PIX_FMT_VP9) { - if (codec_ops->num_pending_bufs) - num_dst_bufs = codec_ops->num_pending_bufs(sess); - + if (codec_ops->num_pending_bufs) { + num_dst_bufs = codec_ops->num_pending_bufs(sess); num_dst_bufs += v4l2_m2m_num_dst_bufs_ready(sess->m2m_ctx); + /* + * When max ref frame is held by VP9, this should be -= 4 + * to prevent a shortage of CAPTURE buffers on the decoder side. + * For the future, a good enhancement of the way this is handled + * could be to notify new capture buffers to the decoding + * modules, so that they could pause when there is no capture + * buffer available and resume on this notification. + */ if (sess->fmt_out->pixfmt == V4L2_PIX_FMT_VP9) - num_dst_bufs -= 3; + num_dst_bufs -= 4; if (esparser_vififo_get_free_space(sess) < payload_size || atomic_read(&sess->esparser_queued_bufs) >= num_dst_bufs) From patchwork Tue Apr 28 12:50:36 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Neil Armstrong X-Patchwork-Id: 11514479 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 4E5C314DD for ; 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X-Spam-Score: 0.0 (/) X-Spam-Report: SpamAssassin version 3.4.4 on bombadil.infradead.org summary: Content analysis details: (0.0 points) pts rule name description ---- ---------------------- -------------------------------------------------- -0.0 RCVD_IN_DNSWL_NONE RBL: Sender listed at https://www.dnswl.org/, no trust [2a00:1450:4864:20:0:0:0:343 listed in] [list.dnswl.org] 0.0 SPF_HELO_NONE SPF: HELO does not publish an SPF Record -0.0 SPF_PASS SPF: sender matches SPF record 0.1 DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid -0.1 DKIM_VALID Message has at least one valid DKIM or DK signature X-BeenThere: linux-amlogic@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: linux-amlogic@lists.infradead.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, Neil Armstrong Sender: "linux-amlogic" Errors-To: linux-amlogic-bounces+patchwork-linux-amlogic=patchwork.kernel.org@lists.infradead.org Add myself as co-maintainer of the Amlogic VDEC driver, and add the missing vdec DT yaml bindings. Signed-off-by: Neil Armstrong --- MAINTAINERS | 2 ++ 1 file changed, 2 insertions(+) diff --git a/MAINTAINERS b/MAINTAINERS index d633a131dcd7..0c183f02d7fa 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -11009,10 +11009,12 @@ F: drivers/mtd/nand/raw/meson_* MESON VIDEO DECODER DRIVER FOR AMLOGIC SOCS M: Maxime Jourdan +M: Neil Armstrong L: linux-media@vger.kernel.org L: linux-amlogic@lists.infradead.org S: Supported T: git git://linuxtv.org/media_tree.git +F: Documentation/devicetree/bindings/media/amlogic,gx-vdec.yaml F: drivers/staging/media/meson/vdec/ METHODE UDPU SUPPORT