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Message-ID: <61875214-d059-8105-6f5f-a0c7c37cb64f@collabora.com>
Date: Fri, 24 Sep 2021 11:09:24 +0200
From: Benjamin Gaignard <benjamin.gaignard@...labora.com>
To: Andrzej Pietrasiewicz <andrzej.p@...labora.com>,
linux-media@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org, linux-rockchip@...ts.infradead.org,
linux-staging@...ts.linux.dev
Cc: Boris Brezillon <boris.brezillon@...labora.com>,
Ezequiel Garcia <ezequiel@...guardiasur.com.ar>,
Fabio Estevam <festevam@...il.com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
Hans Verkuil <hverkuil-cisco@...all.nl>,
Heiko Stuebner <heiko@...ech.de>,
Jernej Skrabec <jernej.skrabec@...il.com>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Nicolas Dufresne <nicolas.dufresne@...labora.com>,
NXP Linux Team <linux-imx@....com>,
Pengutronix Kernel Team <kernel@...gutronix.de>,
Philipp Zabel <p.zabel@...gutronix.de>,
Sascha Hauer <s.hauer@...gutronix.de>,
Shawn Guo <shawnguo@...nel.org>, kernel@...labora.com
Subject: Re: [PATCH v5 08/10] media: hantro: Prepare for other G2 codecs
Le 22/09/2021 à 12:11, Andrzej Pietrasiewicz a écrit :
> VeriSilicon Hantro G2 core supports other codecs besides hevc.
> Factor out some common code in preparation for vp9 support.
Reviewed-by: Benjamin Gaignard <benjamin.gaignard@...labora.com>
>
> Signed-off-by: Andrzej Pietrasiewicz <andrzej.p@...labora.com>
> ---
> drivers/staging/media/hantro/Makefile | 1 +
> drivers/staging/media/hantro/hantro.h | 7 +++++
> drivers/staging/media/hantro/hantro_g2.c | 27 ++++++++++++++++
> .../staging/media/hantro/hantro_g2_hevc_dec.c | 31 -------------------
> drivers/staging/media/hantro/hantro_g2_regs.h | 7 +++++
> drivers/staging/media/hantro/hantro_hw.h | 2 ++
> 6 files changed, 44 insertions(+), 31 deletions(-)
> create mode 100644 drivers/staging/media/hantro/hantro_g2.c
>
> diff --git a/drivers/staging/media/hantro/Makefile b/drivers/staging/media/hantro/Makefile
> index 90036831fec4..fe6d84871d07 100644
> --- a/drivers/staging/media/hantro/Makefile
> +++ b/drivers/staging/media/hantro/Makefile
> @@ -12,6 +12,7 @@ hantro-vpu-y += \
> hantro_g1_mpeg2_dec.o \
> hantro_g2_hevc_dec.o \
> hantro_g1_vp8_dec.o \
> + hantro_g2.o \
> rockchip_vpu2_hw_jpeg_enc.o \
> rockchip_vpu2_hw_h264_dec.o \
> rockchip_vpu2_hw_mpeg2_dec.o \
> diff --git a/drivers/staging/media/hantro/hantro.h b/drivers/staging/media/hantro/hantro.h
> index dd5e56765d4e..d91eb2b1c509 100644
> --- a/drivers/staging/media/hantro/hantro.h
> +++ b/drivers/staging/media/hantro/hantro.h
> @@ -369,6 +369,13 @@ static inline void vdpu_write(struct hantro_dev *vpu, u32 val, u32 reg)
> writel(val, vpu->dec_base + reg);
> }
>
> +static inline void hantro_write_addr(struct hantro_dev *vpu,
> + unsigned long offset,
> + dma_addr_t addr)
> +{
> + vdpu_write(vpu, addr & 0xffffffff, offset);
> +}
> +
> static inline u32 vdpu_read(struct hantro_dev *vpu, u32 reg)
> {
> u32 val = readl(vpu->dec_base + reg);
> diff --git a/drivers/staging/media/hantro/hantro_g2.c b/drivers/staging/media/hantro/hantro_g2.c
> new file mode 100644
> index 000000000000..5f7bb27913de
> --- /dev/null
> +++ b/drivers/staging/media/hantro/hantro_g2.c
> @@ -0,0 +1,27 @@
> +// SPDX-License-Identifier: GPL-2.0
> +/*
> + * Hantro VPU codec driver
> + *
> + * Copyright (C) 2021 Collabora Ltd, Andrzej Pietrasiewicz <andrzej.p@...labora.com>
> + */
> +
> +#include "hantro_hw.h"
> +#include "hantro_g2_regs.h"
> +
> +void hantro_g2_check_idle(struct hantro_dev *vpu)
> +{
> + int i;
> +
> + for (i = 0; i < 3; i++) {
> + u32 status;
> +
> + /* Make sure the VPU is idle */
> + status = vdpu_read(vpu, G2_REG_INTERRUPT);
> + if (status & G2_REG_INTERRUPT_DEC_E) {
> + dev_warn(vpu->dev, "device still running, aborting");
> + status |= G2_REG_INTERRUPT_DEC_ABORT_E | G2_REG_INTERRUPT_DEC_IRQ_DIS;
> + vdpu_write(vpu, status, G2_REG_INTERRUPT);
> + }
> + }
> +}
> +
> diff --git a/drivers/staging/media/hantro/hantro_g2_hevc_dec.c b/drivers/staging/media/hantro/hantro_g2_hevc_dec.c
> index 340efb57fd18..226cecda9495 100644
> --- a/drivers/staging/media/hantro/hantro_g2_hevc_dec.c
> +++ b/drivers/staging/media/hantro/hantro_g2_hevc_dec.c
> @@ -8,20 +8,6 @@
> #include "hantro_hw.h"
> #include "hantro_g2_regs.h"
>
> -#define HEVC_DEC_MODE 0xC
> -
> -#define BUS_WIDTH_32 0
> -#define BUS_WIDTH_64 1
> -#define BUS_WIDTH_128 2
> -#define BUS_WIDTH_256 3
> -
> -static inline void hantro_write_addr(struct hantro_dev *vpu,
> - unsigned long offset,
> - dma_addr_t addr)
> -{
> - vdpu_write(vpu, addr & 0xffffffff, offset);
> -}
> -
> static void prepare_tile_info_buffer(struct hantro_ctx *ctx)
> {
> struct hantro_dev *vpu = ctx->dev;
> @@ -516,23 +502,6 @@ static void set_buffers(struct hantro_ctx *ctx)
> hantro_write_addr(vpu, G2_TILE_BSD, ctx->hevc_dec.tile_bsd.dma);
> }
>
> -static void hantro_g2_check_idle(struct hantro_dev *vpu)
> -{
> - int i;
> -
> - for (i = 0; i < 3; i++) {
> - u32 status;
> -
> - /* Make sure the VPU is idle */
> - status = vdpu_read(vpu, G2_REG_INTERRUPT);
> - if (status & G2_REG_INTERRUPT_DEC_E) {
> - dev_warn(vpu->dev, "device still running, aborting");
> - status |= G2_REG_INTERRUPT_DEC_ABORT_E | G2_REG_INTERRUPT_DEC_IRQ_DIS;
> - vdpu_write(vpu, status, G2_REG_INTERRUPT);
> - }
> - }
> -}
> -
> int hantro_g2_hevc_dec_run(struct hantro_ctx *ctx)
> {
> struct hantro_dev *vpu = ctx->dev;
> diff --git a/drivers/staging/media/hantro/hantro_g2_regs.h b/drivers/staging/media/hantro/hantro_g2_regs.h
> index bb22fa921914..0ac0ba375e80 100644
> --- a/drivers/staging/media/hantro/hantro_g2_regs.h
> +++ b/drivers/staging/media/hantro/hantro_g2_regs.h
> @@ -27,6 +27,13 @@
> #define G2_REG_INTERRUPT_DEC_IRQ_DIS BIT(4)
> #define G2_REG_INTERRUPT_DEC_E BIT(0)
>
> +#define HEVC_DEC_MODE 0xc
> +
> +#define BUS_WIDTH_32 0
> +#define BUS_WIDTH_64 1
> +#define BUS_WIDTH_128 2
> +#define BUS_WIDTH_256 3
> +
> #define g2_strm_swap G2_DEC_REG(2, 28, 0xf)
> #define g2_dirmv_swap G2_DEC_REG(2, 20, 0xf)
>
> diff --git a/drivers/staging/media/hantro/hantro_hw.h b/drivers/staging/media/hantro/hantro_hw.h
> index 4323e63dfbfc..42b3f3961f75 100644
> --- a/drivers/staging/media/hantro/hantro_hw.h
> +++ b/drivers/staging/media/hantro/hantro_hw.h
> @@ -308,4 +308,6 @@ void hantro_vp8_dec_exit(struct hantro_ctx *ctx);
> void hantro_vp8_prob_update(struct hantro_ctx *ctx,
> const struct v4l2_ctrl_vp8_frame *hdr);
>
> +void hantro_g2_check_idle(struct hantro_dev *vpu);
> +
> #endif /* HANTRO_HW_H_ */
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