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Message-ID: <20250810212454.3237486-6-jonas@kwiboo.se>
Date: Sun, 10 Aug 2025 21:24:35 +0000
From: Jonas Karlman <jonas@...boo.se>
To: Ezequiel Garcia <ezequiel@...guardiasur.com.ar>,
Detlev Casanova <detlev.casanova@...labora.com>,
Mauro Carvalho Chehab <mchehab@...nel.org>,
Heiko Stuebner <heiko@...ech.de>
Cc: Alex Bee <knaerzche@...il.com>,
Nicolas Dufresne <nicolas.dufresne@...labora.com>,
Sebastian Fricke <sebastian.fricke@...labora.com>,
linux-media@...r.kernel.org,
linux-rockchip@...ts.infradead.org,
devicetree@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org,
linux-kernel@...r.kernel.org,
Jonas Karlman <jonas@...boo.se>
Subject: [PATCH v2 5/7] media: rkvdec: Disable QoS for HEVC and VP9 on RK3328
From: Alex Bee <knaerzche@...il.com>
The RK3328 VDEC has a HW quirk that require QoS to be disabled when HEVC
or VP9 is decoded, otherwise the decoded picture may become corrupted.
Add a RK3328 variant with a quirk flag to disable QoS when before
decoding is started.
Signed-off-by: Alex Bee <knaerzche@...il.com>
Signed-off-by: Jonas Karlman <jonas@...boo.se>
---
Changes in v2:
- No change
---
drivers/media/platform/rockchip/rkvdec/rkvdec-hevc.c | 9 +++++++++
drivers/media/platform/rockchip/rkvdec/rkvdec-regs.h | 2 ++
drivers/media/platform/rockchip/rkvdec/rkvdec-vp9.c | 10 ++++++++++
drivers/media/platform/rockchip/rkvdec/rkvdec.c | 12 ++++++++++++
drivers/media/platform/rockchip/rkvdec/rkvdec.h | 4 ++++
5 files changed, 37 insertions(+)
diff --git a/drivers/media/platform/rockchip/rkvdec/rkvdec-hevc.c b/drivers/media/platform/rockchip/rkvdec/rkvdec-hevc.c
index 1994ea24f0be..f8bb8c4264f7 100644
--- a/drivers/media/platform/rockchip/rkvdec/rkvdec-hevc.c
+++ b/drivers/media/platform/rockchip/rkvdec/rkvdec-hevc.c
@@ -789,6 +789,15 @@ static int rkvdec_hevc_run(struct rkvdec_ctx *ctx)
writel(1, rkvdec->regs + RKVDEC_REG_PREF_LUMA_CACHE_COMMAND);
writel(1, rkvdec->regs + RKVDEC_REG_PREF_CHR_CACHE_COMMAND);
+ if (rkvdec->quirks & RKVDEC_QUIRK_DISABLE_QOS) {
+ u32 reg;
+
+ reg = readl(rkvdec->regs + RKVDEC_REG_QOS_CTRL);
+ reg |= 0xFFFF;
+ reg &= ~BIT(12);
+ writel(reg, rkvdec->regs + RKVDEC_REG_QOS_CTRL);
+ }
+
/* Start decoding! */
reg = (run.pps->flags & V4L2_HEVC_PPS_FLAG_TILES_ENABLED) ?
0 : RKVDEC_WR_DDR_ALIGN_EN;
diff --git a/drivers/media/platform/rockchip/rkvdec/rkvdec-regs.h b/drivers/media/platform/rockchip/rkvdec/rkvdec-regs.h
index 540c8bdf24e4..c627b6b6f53a 100644
--- a/drivers/media/platform/rockchip/rkvdec/rkvdec-regs.h
+++ b/drivers/media/platform/rockchip/rkvdec/rkvdec-regs.h
@@ -219,6 +219,8 @@
#define RKVDEC_REG_H264_ERR_E 0x134
#define RKVDEC_H264_ERR_EN_HIGHBITS(x) ((x) & 0x3fffffff)
+#define RKVDEC_REG_QOS_CTRL 0x18C
+
#define RKVDEC_REG_PREF_LUMA_CACHE_COMMAND 0x410
#define RKVDEC_REG_PREF_CHR_CACHE_COMMAND 0x450
diff --git a/drivers/media/platform/rockchip/rkvdec/rkvdec-vp9.c b/drivers/media/platform/rockchip/rkvdec/rkvdec-vp9.c
index 0e7e16f20eeb..cadb9d592308 100644
--- a/drivers/media/platform/rockchip/rkvdec/rkvdec-vp9.c
+++ b/drivers/media/platform/rockchip/rkvdec/rkvdec-vp9.c
@@ -824,6 +824,16 @@ static int rkvdec_vp9_run(struct rkvdec_ctx *ctx)
writel(1, rkvdec->regs + RKVDEC_REG_PREF_CHR_CACHE_COMMAND);
writel(0xe, rkvdec->regs + RKVDEC_REG_STRMD_ERR_EN);
+
+ if (rkvdec->quirks & RKVDEC_QUIRK_DISABLE_QOS) {
+ u32 reg;
+
+ reg = readl(rkvdec->regs + RKVDEC_REG_QOS_CTRL);
+ reg |= 0xFFFF;
+ reg &= ~BIT(12);
+ writel(reg, rkvdec->regs + RKVDEC_REG_QOS_CTRL);
+ }
+
/* Start decoding! */
writel(RKVDEC_INTERRUPT_DEC_E | RKVDEC_CONFIG_DEC_CLK_GATE_E |
RKVDEC_TIMEOUT_E | RKVDEC_BUF_EMPTY_E,
diff --git a/drivers/media/platform/rockchip/rkvdec/rkvdec.c b/drivers/media/platform/rockchip/rkvdec/rkvdec.c
index c20e046205fe..d61d4c419992 100644
--- a/drivers/media/platform/rockchip/rkvdec/rkvdec.c
+++ b/drivers/media/platform/rockchip/rkvdec/rkvdec.c
@@ -1226,6 +1226,13 @@ static const struct rkvdec_variant rk3288_rkvdec_variant = {
.capabilities = RKVDEC_CAPABILITY_HEVC,
};
+static const struct rkvdec_variant rk3328_rkvdec_variant = {
+ .capabilities = RKVDEC_CAPABILITY_HEVC |
+ RKVDEC_CAPABILITY_H264 |
+ RKVDEC_CAPABILITY_VP9,
+ .quirks = RKVDEC_QUIRK_DISABLE_QOS,
+};
+
static const struct rkvdec_variant rk3399_rkvdec_variant = {
.capabilities = RKVDEC_CAPABILITY_HEVC |
RKVDEC_CAPABILITY_H264 |
@@ -1237,6 +1244,10 @@ static const struct of_device_id of_rkvdec_match[] = {
.compatible = "rockchip,rk3288-vdec",
.data = &rk3288_rkvdec_variant,
},
+ {
+ .compatible = "rockchip,rk3328-vdec",
+ .data = &rk3328_rkvdec_variant,
+ },
{
.compatible = "rockchip,rk3399-vdec",
.data = &rk3399_rkvdec_variant,
@@ -1267,6 +1278,7 @@ static int rkvdec_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, rkvdec);
rkvdec->dev = &pdev->dev;
rkvdec->capabilities = variant->capabilities;
+ rkvdec->quirks = variant->quirks;
mutex_init(&rkvdec->vdev_lock);
INIT_DELAYED_WORK(&rkvdec->watchdog_work, rkvdec_watchdog_func);
diff --git a/drivers/media/platform/rockchip/rkvdec/rkvdec.h b/drivers/media/platform/rockchip/rkvdec/rkvdec.h
index 8e1f8548eae4..e633a879e9bf 100644
--- a/drivers/media/platform/rockchip/rkvdec/rkvdec.h
+++ b/drivers/media/platform/rockchip/rkvdec/rkvdec.h
@@ -26,6 +26,8 @@
#define RKVDEC_CAPABILITY_H264 BIT(1)
#define RKVDEC_CAPABILITY_VP9 BIT(2)
+#define RKVDEC_QUIRK_DISABLE_QOS BIT(0)
+
struct rkvdec_ctx;
struct rkvdec_ctrl_desc {
@@ -69,6 +71,7 @@ vb2_to_rkvdec_decoded_buf(struct vb2_buffer *buf)
struct rkvdec_variant {
unsigned int capabilities;
+ unsigned int quirks;
};
struct rkvdec_coded_fmt_ops {
@@ -121,6 +124,7 @@ struct rkvdec_dev {
struct delayed_work watchdog_work;
struct iommu_domain *empty_domain;
unsigned int capabilities;
+ unsigned int quirks;
};
struct rkvdec_ctx {
--
2.50.1
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