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Mon, 8 Dec 2025 20:32:49 +0100 (CET) Message-ID: Subject: Re: [PATCH] media: verisilicon: AV1: Fix tx mode bit setting From: Nicolas Dufresne To: Benjamin Gaignard , p.zabel@pengutronix.de, mchehab@kernel.org, heiko@sntech.de, hverkuil@kernel.org Cc: linux-media@vger.kernel.org, linux-rockchip@lists.infradead.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, kernel@collabora.com Date: Mon, 08 Dec 2025 14:32:46 -0500 In-Reply-To: <20251208095227.19720-2-benjamin.gaignard@collabora.com> References: <20251208095227.19720-1-benjamin.gaignard@collabora.com> <20251208095227.19720-2-benjamin.gaignard@collabora.com> Autocrypt: addr=nicolas.dufresne@collabora.com; prefer-encrypt=mutual; keydata=mDMEaCN2ixYJKwYBBAHaRw8BAQdAM0EHepTful3JOIzcPv6ekHOenE1u0vDG1gdHFrChD /e0J05pY29sYXMgRHVmcmVzbmUgPG5pY29sYXNAbmR1ZnJlc25lLmNhPoicBBMWCgBEAhsDBQsJCA cCAiICBhUKCQgLAgQWAgMBAh4HAheABQkJZfd1FiEE7w1SgRXEw8IaBG8S2UGUUSlgcvQFAmibrjo CGQEACgkQ2UGUUSlgcvQlQwD/RjpU1SZYcKG6pnfnQ8ivgtTkGDRUJ8gP3fK7+XUjRNIA/iXfhXMN abIWxO2oCXKf3TdD7aQ4070KO6zSxIcxgNQFtDFOaWNvbGFzIER1ZnJlc25lIDxuaWNvbGFzLmR1Z nJlc25lQGNvbGxhYm9yYS5jb20+iJkEExYKAEECGwMFCwkIBwICIgIGFQoJCAsCBBYCAwECHgcCF4 AWIQTvDVKBFcTDwhoEbxLZQZRRKWBy9AUCaCyyxgUJCWX3dQAKCRDZQZRRKWBy9ARJAP96pFmLffZ smBUpkyVBfFAf+zq6BJt769R0al3kHvUKdgD9G7KAHuioxD2v6SX7idpIazjzx8b8rfzwTWyOQWHC AAS0LU5pY29sYXMgRHVmcmVzbmUgPG5pY29sYXMuZHVmcmVzbmVAZ21haWwuY29tPoiZBBMWCgBBF iEE7w1SgRXEw8IaBG8S2UGUUSlgcvQFAmibrGYCGwMFCQll93UFCwkIBwICIgIGFQoJCAsCBBYCAw ECHgcCF4AACgkQ2UGUUSlgcvRObgD/YnQjfi4+L8f4fI7p1pPMTwRTcaRdy6aqkKEmKsCArzQBAK8 bRLv9QjuqsE6oQZra/RB4widZPvphs78H0P6NmpIJ Organization: Collabora Canada User-Agent: Evolution 3.58.2 (3.58.2-1.fc43) MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20251208_113254_960274_308DEB7F X-CRM114-Status: GOOD ( 16.37 ) X-BeenThere: linux-rockchip@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: Upstream kernel work for Rockchip platforms List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: multipart/mixed; boundary="===============1887215918516660484==" Sender: "Linux-rockchip" Errors-To: linux-rockchip-bounces+linux-rockchip=archiver.kernel.org@lists.infradead.org --===============1887215918516660484== Content-Type: multipart/signed; micalg="pgp-sha512"; protocol="application/pgp-signature"; boundary="=-CPOZjzucNTO3O4NhfpZO" --=-CPOZjzucNTO3O4NhfpZO Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hi, Le lundi 08 d=C3=A9cembre 2025 =C3=A0 10:52 +0100, Benjamin Gaignard a =C3= =A9crit=C2=A0: > If tx_mode field is non-zero then write it value + 2 else it -> its > write 0. Please don't sent a an In-reply-to: email for a patch that isn't part of a series. >=20 > Signed-off-by: Benjamin Gaignard > Fixes: 727a400686a2c ("media: verisilicon: Add Rockchip AV1 decoder") > --- > =C2=A0drivers/media/platform/verisilicon/rockchip_vpu981_hw_av1_dec.c | 2= +- > =C2=A01 file changed, 1 insertion(+), 1 deletion(-) >=20 > diff --git a/drivers/media/platform/verisilicon/rockchip_vpu981_hw_av1_de= c.c > b/drivers/media/platform/verisilicon/rockchip_vpu981_hw_av1_dec.c > index f4f7cb45b1f1..fccdece51b1b 100644 > --- a/drivers/media/platform/verisilicon/rockchip_vpu981_hw_av1_dec.c > +++ b/drivers/media/platform/verisilicon/rockchip_vpu981_hw_av1_dec.c > @@ -2005,7 +2005,7 @@ static void > rockchip_vpu981_av1_dec_set_parameters(struct hantro_ctx *ctx) > =C2=A0 !!(ctrls->frame->flags & > V4L2_AV1_FRAME_FLAG_ALLOW_HIGH_PRECISION_MV)); > =C2=A0 hantro_reg_write(vpu, &av1_comp_pred_mode, > =C2=A0 (ctrls->frame->flags & > V4L2_AV1_FRAME_FLAG_REFERENCE_SELECT) ? 2 : 0); > - hantro_reg_write(vpu, &av1_transform_mode, (ctrls->frame->tx_mode =3D= =3D > 1) ? 3 : 4); > + hantro_reg_write(vpu, &av1_transform_mode, ctrls->frame->tx_mode ? > ctrls->frame->tx_mode + 2 : 0); That all seem very hacky. Let's step back, and use that as inspiration for = a useful commit message. From bitstream we have: tx_mode: 0 =3D=3D 4x4 only 1 =3D=3D SELECT 2 =3D=3D LARGEST And the HW have: 0 =3D=3D 4x4 only 1 =3D=3D 8x8 and less 2 =3D=3D 16x16 and less 3 =3D=3D 32x32 and less 4 =3D=3D Select Since the two enums have no relation (except for value 0), I'd suggest to translate this in a switch (with nice enums so its readable). 0 -> 0 1 -> 4 2 -> 3 Would be good to check if we can refine with some other params to reach HW = value 1 and 2, but otherwise, that mapping is sufficient. Tha hacky +2 is really obscure to me and I'd rather not do that upstream. Nicolas > =C2=A0 hantro_reg_write(vpu, &av1_max_cb_size, > =C2=A0 (ctrls->sequence->flags > =C2=A0 =C2=A0 & V4L2_AV1_SEQUENCE_FLAG_USE_128X128_SUPERBLOCK) ? > 7 : 6); --=-CPOZjzucNTO3O4NhfpZO Content-Type: application/pgp-signature; name="signature.asc" Content-Description: This is a digitally signed message part Content-Transfer-Encoding: 7bit -----BEGIN PGP SIGNATURE----- iHUEABYKAB0WIQTvDVKBFcTDwhoEbxLZQZRRKWBy9AUCaTcn3gAKCRDZQZRRKWBy 9CVcAP0RNa8TlLEqo5wFP1mOMIarqad946RwYdDHHxPIaF4VnwEAyapE3XLOFmCq KL9Eo6Ma/SAxyHXJb/r5OsFwAQDxGgo= =+m1j -----END PGP SIGNATURE----- --=-CPOZjzucNTO3O4NhfpZO-- --===============1887215918516660484== Content-Type: text/plain; charset="us-ascii" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Content-Disposition: inline _______________________________________________ Linux-rockchip mailing list Linux-rockchip@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-rockchip --===============1887215918516660484==--