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Message-ID: <2d045768bb3f1da3e2ea77f9f94050b194627e5b.camel@mediatek.com>
Date: Tue, 26 Dec 2023 03:20:35 +0000
From: CK Hu (胡俊光) <ck.hu@...iatek.com>
To: "matthias.bgg@...il.com" <matthias.bgg@...il.com>,
Jason-JH Lin (林睿祥) <Jason-JH.Lin@...iatek.com>,
"chunkuang.hu@...nel.org" <chunkuang.hu@...nel.org>, "conor+dt@...nel.org"
<conor+dt@...nel.org>, "robh+dt@...nel.org" <robh+dt@...nel.org>,
"krzysztof.kozlowski+dt@...aro.org" <krzysztof.kozlowski+dt@...aro.org>,
"angelogioacchino.delregno@...labora.com"
<angelogioacchino.delregno@...labora.com>
CC: "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"linux-mediatek@...ts.infradead.org" <linux-mediatek@...ts.infradead.org>,
Singo Chang (張興國) <Singo.Chang@...iatek.com>,
Johnson Wang (王聖鑫) <Johnson.Wang@...iatek.com>,
"linaro-mm-sig@...ts.linaro.org" <linaro-mm-sig@...ts.linaro.org>,
"linux-media@...r.kernel.org" <linux-media@...r.kernel.org>,
"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
Jason-ch Chen (陳建豪)
<Jason-ch.Chen@...iatek.com>, Shawn Sung (宋孝謙)
<Shawn.Sung@...iatek.com>, Nancy Lin (林欣螢)
<Nancy.Lin@...iatek.com>, "jkardatzke@...gle.com" <jkardatzke@...gle.com>,
"dri-devel@...ts.freedesktop.org" <dri-devel@...ts.freedesktop.org>,
Project_Global_Chrome_Upstream_Group
<Project_Global_Chrome_Upstream_Group@...iatek.com>,
"linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCH v3 08/11] drm/mediatek: Add secure layer config support
for ovl_adaptor
Hi, Jason:
On Sun, 2023-12-24 at 02:29 +0800, Jason-JH.Lin wrote:
> Add secure layer config support for ovl_adaptor and sub driver
> mdp_rdma.
>
> Signed-off-by: Jason-JH.Lin <jason-jh.lin@...iatek.com>
> ---
> drivers/gpu/drm/mediatek/mtk_disp_drv.h | 1 +
> drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c | 15 +++++++++++++++
> drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c | 1 +
> drivers/gpu/drm/mediatek/mtk_mdp_rdma.c | 11 ++++++++---
> drivers/gpu/drm/mediatek/mtk_mdp_rdma.h | 2 ++
> 5 files changed, 27 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> index 77054adcd9cf..ec9746767468 100644
> --- a/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> +++ b/drivers/gpu/drm/mediatek/mtk_disp_drv.h
> @@ -117,6 +117,7 @@ void mtk_ovl_adaptor_clk_disable(struct device
> *dev);
> void mtk_ovl_adaptor_config(struct device *dev, unsigned int w,
> unsigned int h, unsigned int vrefresh,
> unsigned int bpc, struct cmdq_pkt
> *cmdq_pkt);
> +u64 mtk_ovl_adaptor_get_sec_port(struct mtk_ddp_comp *comp, unsigned
> int idx);
> void mtk_ovl_adaptor_layer_config(struct device *dev, unsigned int
> idx,
> struct mtk_plane_state *state,
> struct cmdq_pkt *cmdq_pkt);
> diff --git a/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c
> b/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c
> index 6bf6367853fb..f419c2e70ba3 100644
> --- a/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c
> +++ b/drivers/gpu/drm/mediatek/mtk_disp_ovl_adaptor.c
> @@ -83,6 +83,18 @@ static const struct ovl_adaptor_comp_match
> comp_matches[OVL_ADAPTOR_ID_MAX] = {
> [OVL_ADAPTOR_ETHDR0] = { OVL_ADAPTOR_TYPE_ETHDR, 0 },
> };
>
> +static const u64 ovl_adaptor_sec_port[] = {
> + BIT_ULL(CMDQ_SEC_VDO1_DISP_RDMA_L0),
> + BIT_ULL(CMDQ_SEC_VDO1_DISP_RDMA_L1),
> + BIT_ULL(CMDQ_SEC_VDO1_DISP_RDMA_L2),
> + BIT_ULL(CMDQ_SEC_VDO1_DISP_RDMA_L3),
> +};
> +
> +u64 mtk_ovl_adaptor_get_sec_port(struct mtk_ddp_comp *comp, unsigned
> int idx)
> +{
> + return ovl_adaptor_sec_port[idx];
> +}
> +
> void mtk_ovl_adaptor_layer_config(struct device *dev, unsigned int
> idx,
> struct mtk_plane_state *state,
> struct cmdq_pkt *cmdq_pkt)
> @@ -141,6 +153,9 @@ void mtk_ovl_adaptor_layer_config(struct device
> *dev, unsigned int idx,
> rdma_config.pitch = pending->pitch;
> rdma_config.fmt = pending->format;
> rdma_config.color_encoding = pending->color_encoding;
> + rdma_config.source_size = (pending->height - 1) * pending-
> >pitch +
> + pending->width * fmt_info->cpp[0];
> + rdma_config.is_secure = state->pending.is_secure;
> mtk_mdp_rdma_config(rdma_l, &rdma_config, cmdq_pkt);
>
> if (use_dual_pipe) {
> diff --git a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> index 6aed7647dfc0..9b7fe34df9a6 100644
> --- a/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> +++ b/drivers/gpu/drm/mediatek/mtk_drm_ddp_comp.c
> @@ -445,6 +445,7 @@ static const struct mtk_ddp_comp_funcs
> ddp_ovl_adaptor = {
> .remove = mtk_ovl_adaptor_remove_comp,
> .get_formats = mtk_ovl_adaptor_get_formats,
> .get_num_formats = mtk_ovl_adaptor_get_num_formats,
> + .get_sec_port = mtk_ovl_adaptor_get_sec_port,
> };
>
> static const char * const mtk_ddp_comp_stem[MTK_DDP_COMP_TYPE_MAX] =
> {
> diff --git a/drivers/gpu/drm/mediatek/mtk_mdp_rdma.c
> b/drivers/gpu/drm/mediatek/mtk_mdp_rdma.c
> index c3adaeefd551..a164ba82d022 100644
> --- a/drivers/gpu/drm/mediatek/mtk_mdp_rdma.c
> +++ b/drivers/gpu/drm/mediatek/mtk_mdp_rdma.c
> @@ -94,6 +94,7 @@ struct mtk_mdp_rdma {
> void __iomem *regs;
> struct clk *clk;
> struct cmdq_client_reg cmdq_reg;
> + resource_size_t regs_pa;
> };
>
> static unsigned int rdma_fmt_convert(unsigned int fmt)
> @@ -198,9 +199,12 @@ void mtk_mdp_rdma_config(struct device *dev,
> struct mtk_mdp_rdma_cfg *cfg,
> else
> mtk_ddp_write_mask(cmdq_pkt, 0, &priv->cmdq_reg, priv-
> >regs,
> MDP_RDMA_SRC_CON, FLD_OUTPUT_ARGB);
> -
> - mtk_ddp_write_mask(cmdq_pkt, cfg->addr0, &priv->cmdq_reg, priv-
> >regs,
> - MDP_RDMA_SRC_BASE_0, FLD_SRC_BASE_0);
> + if (cfg->is_secure)
> + mtk_ddp_sec_write(cmdq_pkt, priv->regs_pa +
> MDP_RDMA_SRC_BASE_0,
> + cfg->addr0, CMDQ_IWC_H_2_MVA, 0, cfg-
> >source_size, 0);
In OVL, there is one bit that control OVL hardware could access secure
buffer or not. Why mdp rdma has no this bit?
Regards,
CK
> + else
> + mtk_ddp_write_mask(cmdq_pkt, cfg->addr0, &priv-
> >cmdq_reg, priv->regs,
> + MDP_RDMA_SRC_BASE_0,
> FLD_SRC_BASE_0);
>
> mtk_ddp_write_mask(cmdq_pkt, src_pitch_y, &priv->cmdq_reg,
> priv->regs,
> MDP_RDMA_MF_BKGD_SIZE_IN_BYTE,
> FLD_MF_BKGD_WB);
> @@ -285,6 +289,7 @@ static int mtk_mdp_rdma_probe(struct
> platform_device *pdev)
> return -ENOMEM;
>
> res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> + priv->regs_pa = res->start;
> priv->regs = devm_ioremap_resource(dev, res);
> if (IS_ERR(priv->regs)) {
> dev_err(dev, "failed to ioremap rdma\n");
> diff --git a/drivers/gpu/drm/mediatek/mtk_mdp_rdma.h
> b/drivers/gpu/drm/mediatek/mtk_mdp_rdma.h
> index 9943ee3aac31..cd4840411411 100644
> --- a/drivers/gpu/drm/mediatek/mtk_mdp_rdma.h
> +++ b/drivers/gpu/drm/mediatek/mtk_mdp_rdma.h
> @@ -15,6 +15,8 @@ struct mtk_mdp_rdma_cfg {
> unsigned int y_top;
> int fmt;
> int color_encoding;
> + unsigned int source_size;
> + unsigned int is_secure;
> };
>
> #endif // __MTK_MDP_RDMA_H__
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