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* [PATCH v5, 00/15] Using component framework to support multi hardware decode
@ 2021-08-11  2:57 Yunfei Dong
  2021-08-11  2:57 ` [PATCH v5, 01/15] media: mtk-vcodec: Get numbers of register bases from DT Yunfei Dong
                   ` (15 more replies)
  0 siblings, 16 replies; 41+ messages in thread
From: Yunfei Dong @ 2021-08-11  2:57 UTC (permalink / raw)
  To: Yunfei Dong, Alexandre Courbot, Hans Verkuil, Tzung-Bi Shih,
	Tiffany Lin, Andrew-CT Chen, Mauro Carvalho Chehab, Rob Herring,
	Matthias Brugger, Tomasz Figa
  Cc: Hsin-Yi Wang, Fritz Koenig, Irui Wang, linux-media, devicetree,
	linux-kernel, linux-arm-kernel, srv_heupstream, linux-mediatek,
	Project_Global_Chrome_Upstream_Group, George Sun

This series adds support for multi hardware decode into mtk-vcodec, by first
adding component framework to manage each hardware information: interrupt,
clock, register bases and power. Secondly add core thread to deal with core
hardware message, at the same time, add msg queue for different hardware
share messages. Lastly, the architecture of different specs are not the same,
using specs type to separate them.

This series has been tested with both MT8183 and MT8173. Decoding was working
for both chips.

Patches 1~3 rewrite get register bases and power on/off interface.

Patch 4 add component framework to support multi hardware.

Patch 5 separate video encoder and decoder document

Patches 6-15 add interfaces to support core hardware.
----
This patch dependents on : "media: mtk-vcodec: support for MT8183 decoder"[1] and
"Mediatek MT8192 clock support"[2].

1: Multi hardware decode is based on stateless decoder, MT8183 is the first time
to add stateless decoder. Otherwise it will cause conflict. Please also accept
this patch together with [1].

2: The definition of decoder clocks are in mt8192-clk.h, need to include them in
case of build fail [2].

[1]https://patchwork.linuxtv.org/project/linux-media/list/?series=6057
[2]https://patchwork.kernel.org/project/linux-mediatek/list/?series=511175
----
Changes compared with v4:
- Fix comments for patch 4/15
  >> +     if (dev->is_comp_supported) {
  >> +             ret = mtk_vcodec_init_master(dev);
  >> +             if (ret < 0)
  >> +                     goto err_component_match;
  >> +     } else {
  >> +             platform_set_drvdata(pdev, dev);
  >> +     }
  Fix platform_set_drvdata.
- Fix build error for patch 9/15
- Add depend patch in case of error header file for patch 13/15

Changes compared with v3:
- Fix return value for patch 1/15
- Fix comments for patch 4/15
  > Looking up "mediatek,mtk-vcodec-core" to determine if it uses component framwork sounds like...
  Add prameter in pdata, for all platform will use compoent after mt8183

  >> +     if (dev->is_comp_supported) {
  >> +             ret = mtk_vcodec_init_master(dev);
  >> +             if (ret < 0)
  >> +                     goto err_component_match;
  >> +     } else {
  >> +             platform_set_drvdata(pdev, dev);
  >> +     }
  > + Has asked the same question in [1].  Why it removes the
  > +platform_set_drvdata() above?  mtk_vcodec_init_master() also calls platform_set_drvdata().
  Must call component_master_add_with_match after platform_set_drvdata for component architecture.
- Fix yaml files check fail for patch 5/15
- Fix yaml file check fail for patch 14/15

Changes compared with v1:
- Fix many comments for patch 3/14
- Remove unnecessary code for patch 4/14
- Using enum mtk_vdec_hw_count instead of magic numbers for patch 6/14
- Reconstructed get/put lat buffer for lat and core hardware for patch 7/14
- Using yaml format to instead of txt file for patch 12/14

Yunfei Dong (15):
  media: mtk-vcodec: Get numbers of register bases from DT
  media: mtk-vcodec: Align vcodec wake up interrupt interface
  media: mtk-vcodec: Refactor vcodec pm interface
  media: mtk-vcodec: Use component framework to manage each hardware
    information
  dt-bindings: media: mtk-vcodec: Separate video encoder and decoder
    dt-bindings
  media: mtk-vcodec: Use pure single core for MT8183
  media: mtk-vcodec: Add irq interface for multi hardware
  media: mtk-vcodec: Add msg queue feature for lat and core architecture
  media: mtk-vcodec: Generalize power and clock on/off interfaces
  media: mtk-vcodec: Add new interface to lock different hardware
  media: mtk-vcodec: Add core thread
  media: mtk-vcodec: Support 34bits dma address for vdec
  dt-bindings: media: mtk-vcodec: Adds decoder dt-bindings for mt8192
  media: mtk-vcodec: Add core dec and dec end ipi msg
  media: mtk-vcodec: Use codec type to separate different hardware

 .../media/mediatek,vcodec-comp-decoder.yaml   | 172 +++++++++++
 .../media/mediatek,vcodec-decoder.yaml        | 175 +++++++++++
 .../media/mediatek,vcodec-encoder.yaml        | 185 +++++++++++
 .../bindings/media/mediatek-vcodec.txt        | 130 --------
 drivers/media/platform/mtk-vcodec/Makefile    |   2 +
 .../platform/mtk-vcodec/mtk_vcodec_dec.c      |   4 +-
 .../platform/mtk-vcodec/mtk_vcodec_dec.h      |   1 +
 .../platform/mtk-vcodec/mtk_vcodec_dec_drv.c  | 276 ++++++++++++++---
 .../platform/mtk-vcodec/mtk_vcodec_dec_hw.c   | 184 +++++++++++
 .../platform/mtk-vcodec/mtk_vcodec_dec_hw.h   |  53 ++++
 .../platform/mtk-vcodec/mtk_vcodec_dec_pm.c   |  98 ++++--
 .../platform/mtk-vcodec/mtk_vcodec_dec_pm.h   |  13 +-
 .../mtk-vcodec/mtk_vcodec_dec_stateful.c      |   2 +
 .../mtk-vcodec/mtk_vcodec_dec_stateless.c     |   2 +
 .../platform/mtk-vcodec/mtk_vcodec_drv.h      |  71 ++++-
 .../platform/mtk-vcodec/mtk_vcodec_enc_drv.c  |  12 +-
 .../platform/mtk-vcodec/mtk_vcodec_enc_pm.c   |   1 -
 .../platform/mtk-vcodec/mtk_vcodec_intr.c     |  27 +-
 .../platform/mtk-vcodec/mtk_vcodec_intr.h     |   4 +-
 .../platform/mtk-vcodec/mtk_vcodec_util.c     |  87 +++++-
 .../platform/mtk-vcodec/mtk_vcodec_util.h     |   8 +-
 .../platform/mtk-vcodec/vdec/vdec_h264_if.c   |   2 +-
 .../mtk-vcodec/vdec/vdec_h264_req_if.c        |   2 +-
 .../platform/mtk-vcodec/vdec/vdec_vp8_if.c    |   2 +-
 .../platform/mtk-vcodec/vdec/vdec_vp9_if.c    |   2 +-
 .../media/platform/mtk-vcodec/vdec_drv_if.c   |  21 +-
 .../media/platform/mtk-vcodec/vdec_ipi_msg.h  |  16 +-
 .../platform/mtk-vcodec/vdec_msg_queue.c      | 290 ++++++++++++++++++
 .../platform/mtk-vcodec/vdec_msg_queue.h      | 157 ++++++++++
 .../media/platform/mtk-vcodec/vdec_vpu_if.c   |  46 ++-
 .../media/platform/mtk-vcodec/vdec_vpu_if.h   |  22 ++
 .../platform/mtk-vcodec/venc/venc_h264_if.c   |   2 +-
 .../platform/mtk-vcodec/venc/venc_vp8_if.c    |   2 +-
 33 files changed, 1792 insertions(+), 279 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/media/mediatek,vcodec-comp-decoder.yaml
 create mode 100644 Documentation/devicetree/bindings/media/mediatek,vcodec-decoder.yaml
 create mode 100644 Documentation/devicetree/bindings/media/mediatek,vcodec-encoder.yaml
 delete mode 100644 Documentation/devicetree/bindings/media/mediatek-vcodec.txt
 create mode 100644 drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c
 create mode 100644 drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.h
 create mode 100644 drivers/media/platform/mtk-vcodec/vdec_msg_queue.c
 create mode 100644 drivers/media/platform/mtk-vcodec/vdec_msg_queue.h

-- 
2.25.1


^ permalink raw reply	[flat|nested] 41+ messages in thread

* [PATCH v5, 01/15] media: mtk-vcodec: Get numbers of register bases from DT
  2021-08-11  2:57 [PATCH v5, 00/15] Using component framework to support multi hardware decode Yunfei Dong
@ 2021-08-11  2:57 ` Yunfei Dong
  2021-08-20  3:29   ` Tzung-Bi Shih
  2021-08-11  2:57 ` [PATCH v5, 02/15] media: mtk-vcodec: Align vcodec wake up interrupt interface Yunfei Dong
                   ` (14 subsequent siblings)
  15 siblings, 1 reply; 41+ messages in thread
From: Yunfei Dong @ 2021-08-11  2:57 UTC (permalink / raw)
  To: Yunfei Dong, Alexandre Courbot, Hans Verkuil, Tzung-Bi Shih,
	Tiffany Lin, Andrew-CT Chen, Mauro Carvalho Chehab, Rob Herring,
	Matthias Brugger, Tomasz Figa
  Cc: Hsin-Yi Wang, Fritz Koenig, Irui Wang, linux-media, devicetree,
	linux-kernel, linux-arm-kernel, srv_heupstream, linux-mediatek,
	Project_Global_Chrome_Upstream_Group, George Sun

Different platform may has different numbers of register bases. Gets the
numbers of register bases from DT (sizeof(u32) * 4 bytes for each).

Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
---
v5: no changes
---
 .../platform/mtk-vcodec/mtk_vcodec_dec_drv.c  | 37 ++++++++++++++-----
 1 file changed, 28 insertions(+), 9 deletions(-)

diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
index 55ae198dbcf9..983e0f2831af 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
@@ -78,6 +78,30 @@ static irqreturn_t mtk_vcodec_dec_irq_handler(int irq, void *priv)
 	return IRQ_HANDLED;
 }
 
+static int mtk_vcodec_get_reg_bases(struct mtk_vcodec_dev *dev)
+{
+	struct platform_device *pdev = dev->plat_dev;
+	int reg_num, i;
+
+	/* Sizeof(u32) * 4 bytes for each register base. */
+	reg_num = of_property_count_elems_of_size(pdev->dev.of_node, "reg",
+		sizeof(u32) * 4);
+	if (reg_num <= 0 || reg_num > NUM_MAX_VDEC_REG_BASE) {
+		dev_err(&pdev->dev, "Invalid register property size: %d\n", reg_num);
+		return -EINVAL;
+	}
+
+	for (i = 0; i < reg_num; i++) {
+		dev->reg_base[i] = devm_platform_ioremap_resource(pdev, i);
+		if (IS_ERR(dev->reg_base[i]))
+			return PTR_ERR(dev->reg_base[i]);
+
+		mtk_v4l2_debug(2, "reg[%d] base=%p", i, dev->reg_base[i]);
+	}
+
+	return 0;
+}
+
 static int fops_vcodec_open(struct file *file)
 {
 	struct mtk_vcodec_dev *dev = video_drvdata(file);
@@ -206,7 +230,7 @@ static int mtk_vcodec_probe(struct platform_device *pdev)
 	struct resource *res;
 	phandle rproc_phandle;
 	enum mtk_vcodec_fw_type fw_type;
-	int i, ret;
+	int ret;
 
 	dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
 	if (!dev)
@@ -238,14 +262,9 @@ static int mtk_vcodec_probe(struct platform_device *pdev)
 		goto err_dec_pm;
 	}
 
-	for (i = 0; i < NUM_MAX_VDEC_REG_BASE; i++) {
-		dev->reg_base[i] = devm_platform_ioremap_resource(pdev, i);
-		if (IS_ERR((__force void *)dev->reg_base[i])) {
-			ret = PTR_ERR((__force void *)dev->reg_base[i]);
-			goto err_res;
-		}
-		mtk_v4l2_debug(2, "reg[%d] base=%p", i, dev->reg_base[i]);
-	}
+	ret = mtk_vcodec_get_reg_bases(dev);
+	if (ret)
+		goto err_res;
 
 	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
 	if (res == NULL) {
-- 
2.25.1


^ permalink raw reply	[flat|nested] 41+ messages in thread

* [PATCH v5, 02/15] media: mtk-vcodec: Align vcodec wake up interrupt interface
  2021-08-11  2:57 [PATCH v5, 00/15] Using component framework to support multi hardware decode Yunfei Dong
  2021-08-11  2:57 ` [PATCH v5, 01/15] media: mtk-vcodec: Get numbers of register bases from DT Yunfei Dong
@ 2021-08-11  2:57 ` Yunfei Dong
  2021-08-11  2:57 ` [PATCH v5, 03/15] media: mtk-vcodec: Refactor vcodec pm interface Yunfei Dong
                   ` (13 subsequent siblings)
  15 siblings, 0 replies; 41+ messages in thread
From: Yunfei Dong @ 2021-08-11  2:57 UTC (permalink / raw)
  To: Yunfei Dong, Alexandre Courbot, Hans Verkuil, Tzung-Bi Shih,
	Tiffany Lin, Andrew-CT Chen, Mauro Carvalho Chehab, Rob Herring,
	Matthias Brugger, Tomasz Figa
  Cc: Hsin-Yi Wang, Fritz Koenig, Irui Wang, linux-media, devicetree,
	linux-kernel, linux-arm-kernel, srv_heupstream, linux-mediatek,
	Project_Global_Chrome_Upstream_Group, George Sun

Vdec and venc can use the same function to wake up interrupt event.

Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
Reviewed-by: Tzung-Bi Shih <tzungbi@google.com>
---
v5: no changes
---
 drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c | 9 +--------
 drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h     | 8 ++++++++
 drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c | 8 --------
 3 files changed, 9 insertions(+), 16 deletions(-)

diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
index 983e0f2831af..8db9cdc66043 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
@@ -31,13 +31,6 @@
 module_param(mtk_v4l2_dbg_level, int, 0644);
 module_param(mtk_vcodec_dbg, bool, 0644);
 
-/* Wake up context wait_queue */
-static void wake_up_ctx(struct mtk_vcodec_ctx *ctx)
-{
-	ctx->int_cond = 1;
-	wake_up_interruptible(&ctx->queue);
-}
-
 static irqreturn_t mtk_vcodec_dec_irq_handler(int irq, void *priv)
 {
 	struct mtk_vcodec_dev *dev = priv;
@@ -69,7 +62,7 @@ static irqreturn_t mtk_vcodec_dec_irq_handler(int irq, void *priv)
 	writel((readl(vdec_misc_addr) & ~VDEC_IRQ_CLR),
 		dev->reg_base[VDEC_MISC] + VDEC_IRQ_CFG_REG);
 
-	wake_up_ctx(ctx);
+	wake_up_ctx(ctx, MTK_INST_IRQ_RECEIVED);
 
 	mtk_v4l2_debug(3,
 			"mtk_vcodec_dec_irq_handler :wake up ctx %d, dec_done_status=%x",
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
index d4f840a7bbcb..3b1e5e3a450e 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
@@ -472,4 +472,12 @@ static inline struct mtk_vcodec_ctx *ctrl_to_ctx(struct v4l2_ctrl *ctrl)
 	return container_of(ctrl->handler, struct mtk_vcodec_ctx, ctrl_hdl);
 }
 
+/* Wake up context wait_queue */
+static inline void wake_up_ctx(struct mtk_vcodec_ctx *ctx, unsigned int reason)
+{
+	ctx->int_cond = 1;
+	ctx->int_type = reason;
+	wake_up_interruptible(&ctx->queue);
+}
+
 #endif /* _MTK_VCODEC_DRV_H_ */
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c
index 4167e865b23f..2828df77020c 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c
@@ -73,14 +73,6 @@ static const struct mtk_video_fmt mtk_video_formats_capture_mt8183[] =  {
 	},
 };
 
-/* Wake up context wait_queue */
-static void wake_up_ctx(struct mtk_vcodec_ctx *ctx, unsigned int reason)
-{
-	ctx->int_cond = 1;
-	ctx->int_type = reason;
-	wake_up_interruptible(&ctx->queue);
-}
-
 static void clean_irq_status(unsigned int irq_status, void __iomem *addr)
 {
 	if (irq_status & MTK_VENC_IRQ_STATUS_PAUSE)
-- 
2.25.1


^ permalink raw reply	[flat|nested] 41+ messages in thread

* [PATCH v5, 03/15] media: mtk-vcodec: Refactor vcodec pm interface
  2021-08-11  2:57 [PATCH v5, 00/15] Using component framework to support multi hardware decode Yunfei Dong
  2021-08-11  2:57 ` [PATCH v5, 01/15] media: mtk-vcodec: Get numbers of register bases from DT Yunfei Dong
  2021-08-11  2:57 ` [PATCH v5, 02/15] media: mtk-vcodec: Align vcodec wake up interrupt interface Yunfei Dong
@ 2021-08-11  2:57 ` Yunfei Dong
  2021-08-11  2:57 ` [PATCH v5, 04/15] media: mtk-vcodec: Use component framework to manage each hardware information Yunfei Dong
                   ` (12 subsequent siblings)
  15 siblings, 0 replies; 41+ messages in thread
From: Yunfei Dong @ 2021-08-11  2:57 UTC (permalink / raw)
  To: Yunfei Dong, Alexandre Courbot, Hans Verkuil, Tzung-Bi Shih,
	Tiffany Lin, Andrew-CT Chen, Mauro Carvalho Chehab, Rob Herring,
	Matthias Brugger, Tomasz Figa
  Cc: Hsin-Yi Wang, Fritz Koenig, Irui Wang, linux-media, devicetree,
	linux-kernel, linux-arm-kernel, srv_heupstream, linux-mediatek,
	Project_Global_Chrome_Upstream_Group, George Sun

Using the needed param for pm init/release function and remove unused
param mtkdev in 'struct mtk_vcodec_pm'.

Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
Reviewed-by: Tzung-Bi Shih <tzungbi@google.com>
---
v5: no changes
---
 .../platform/mtk-vcodec/mtk_vcodec_dec_drv.c  |  6 ++---
 .../platform/mtk-vcodec/mtk_vcodec_dec_pm.c   | 22 ++++++++-----------
 .../platform/mtk-vcodec/mtk_vcodec_dec_pm.h   |  5 +++--
 .../platform/mtk-vcodec/mtk_vcodec_drv.h      |  1 -
 .../platform/mtk-vcodec/mtk_vcodec_enc_pm.c   |  1 -
 5 files changed, 15 insertions(+), 20 deletions(-)

diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
index 8db9cdc66043..dd749d41c75a 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
@@ -249,7 +249,7 @@ static int mtk_vcodec_probe(struct platform_device *pdev)
 	if (IS_ERR(dev->fw_handler))
 		return PTR_ERR(dev->fw_handler);
 
-	ret = mtk_vcodec_init_dec_pm(dev);
+	ret = mtk_vcodec_init_dec_pm(dev->plat_dev, &dev->pm);
 	if (ret < 0) {
 		dev_err(&pdev->dev, "Failed to get mt vcodec clock source");
 		goto err_dec_pm;
@@ -379,7 +379,7 @@ static int mtk_vcodec_probe(struct platform_device *pdev)
 err_dec_alloc:
 	v4l2_device_unregister(&dev->v4l2_dev);
 err_res:
-	mtk_vcodec_release_dec_pm(dev);
+	mtk_vcodec_release_dec_pm(&dev->pm);
 err_dec_pm:
 	mtk_vcodec_fw_release(dev->fw_handler);
 	return ret;
@@ -422,7 +422,7 @@ static int mtk_vcodec_dec_remove(struct platform_device *pdev)
 		video_unregister_device(dev->vfd_dec);
 
 	v4l2_device_unregister(&dev->v4l2_dev);
-	mtk_vcodec_release_dec_pm(dev);
+	mtk_vcodec_release_dec_pm(&dev->pm);
 	mtk_vcodec_fw_release(dev->fw_handler);
 	return 0;
 }
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c
index 6038db96f71c..20bd157a855c 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c
@@ -13,18 +13,15 @@
 #include "mtk_vcodec_dec_pm.h"
 #include "mtk_vcodec_util.h"
 
-int mtk_vcodec_init_dec_pm(struct mtk_vcodec_dev *mtkdev)
+int mtk_vcodec_init_dec_pm(struct platform_device *pdev,
+	struct mtk_vcodec_pm *pm)
 {
 	struct device_node *node;
-	struct platform_device *pdev;
-	struct mtk_vcodec_pm *pm;
+	struct platform_device *larb_pdev;
 	struct mtk_vcodec_clk *dec_clk;
 	struct mtk_vcodec_clk_info *clk_info;
 	int i = 0, ret = 0;
 
-	pdev = mtkdev->plat_dev;
-	pm = &mtkdev->pm;
-	pm->mtkdev = mtkdev;
 	dec_clk = &pm->vdec_clk;
 	node = of_parse_phandle(pdev->dev.of_node, "mediatek,larb", 0);
 	if (!node) {
@@ -32,13 +29,12 @@ int mtk_vcodec_init_dec_pm(struct mtk_vcodec_dev *mtkdev)
 		return -1;
 	}
 
-	pdev = of_find_device_by_node(node);
+	larb_pdev = of_find_device_by_node(node);
 	of_node_put(node);
-	if (WARN_ON(!pdev)) {
+	if (WARN_ON(!larb_pdev)) {
 		return -1;
 	}
-	pm->larbvdec = &pdev->dev;
-	pdev = mtkdev->plat_dev;
+	pm->larbvdec = &larb_pdev->dev;
 	pm->dev = &pdev->dev;
 
 	dec_clk->clk_num =
@@ -82,10 +78,10 @@ int mtk_vcodec_init_dec_pm(struct mtk_vcodec_dev *mtkdev)
 	return ret;
 }
 
-void mtk_vcodec_release_dec_pm(struct mtk_vcodec_dev *dev)
+void mtk_vcodec_release_dec_pm(struct mtk_vcodec_pm *pm)
 {
-	pm_runtime_disable(dev->pm.dev);
-	put_device(dev->pm.larbvdec);
+	pm_runtime_disable(pm->dev);
+	put_device(pm->larbvdec);
 }
 
 int mtk_vcodec_dec_pw_on(struct mtk_vcodec_pm *pm)
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.h
index 280aeaefdb65..a3df6aef6cb9 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.h
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.h
@@ -9,8 +9,9 @@
 
 #include "mtk_vcodec_drv.h"
 
-int mtk_vcodec_init_dec_pm(struct mtk_vcodec_dev *dev);
-void mtk_vcodec_release_dec_pm(struct mtk_vcodec_dev *dev);
+int mtk_vcodec_init_dec_pm(struct platform_device *pdev,
+	struct mtk_vcodec_pm *pm);
+void mtk_vcodec_release_dec_pm(struct mtk_vcodec_pm *pm);
 
 int mtk_vcodec_dec_pw_on(struct mtk_vcodec_pm *pm);
 void mtk_vcodec_dec_pw_off(struct mtk_vcodec_pm *pm);
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
index 3b1e5e3a450e..973b0b3649c6 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
@@ -195,7 +195,6 @@ struct mtk_vcodec_pm {
 	struct mtk_vcodec_clk	venc_clk;
 	struct device	*larbvenc;
 	struct device	*dev;
-	struct mtk_vcodec_dev	*mtkdev;
 };
 
 /**
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c
index 1b2e4930ed27..0c8c8f86788c 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_pm.c
@@ -26,7 +26,6 @@ int mtk_vcodec_init_enc_pm(struct mtk_vcodec_dev *mtkdev)
 	pdev = mtkdev->plat_dev;
 	pm = &mtkdev->pm;
 	memset(pm, 0, sizeof(struct mtk_vcodec_pm));
-	pm->mtkdev = mtkdev;
 	pm->dev = &pdev->dev;
 	dev = &pdev->dev;
 	enc_clk = &pm->venc_clk;
-- 
2.25.1


^ permalink raw reply	[flat|nested] 41+ messages in thread

* [PATCH v5, 04/15] media: mtk-vcodec: Use component framework to manage each hardware information
  2021-08-11  2:57 [PATCH v5, 00/15] Using component framework to support multi hardware decode Yunfei Dong
                   ` (2 preceding siblings ...)
  2021-08-11  2:57 ` [PATCH v5, 03/15] media: mtk-vcodec: Refactor vcodec pm interface Yunfei Dong
@ 2021-08-11  2:57 ` Yunfei Dong
  2021-08-11  2:57 ` [PATCH v5, 05/15] dt-bindings: media: mtk-vcodec: Separate video encoder and decoder dt-bindings Yunfei Dong
                   ` (11 subsequent siblings)
  15 siblings, 0 replies; 41+ messages in thread
From: Yunfei Dong @ 2021-08-11  2:57 UTC (permalink / raw)
  To: Yunfei Dong, Alexandre Courbot, Hans Verkuil, Tzung-Bi Shih,
	Tiffany Lin, Andrew-CT Chen, Mauro Carvalho Chehab, Rob Herring,
	Matthias Brugger, Tomasz Figa
  Cc: Hsin-Yi Wang, Fritz Koenig, Irui Wang, linux-media, devicetree,
	linux-kernel, linux-arm-kernel, srv_heupstream, linux-mediatek,
	Project_Global_Chrome_Upstream_Group, George Sun

Uses component framework to manage each hardware information which
includes irq/power/clk. The hardware includes LAT0, LAT1 and CORE.

Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
---
v5: Fix platform_set_drvdata in error place.
---
 drivers/media/platform/mtk-vcodec/Makefile    |   1 +
 .../platform/mtk-vcodec/mtk_vcodec_dec.h      |   1 +
 .../platform/mtk-vcodec/mtk_vcodec_dec_drv.c  | 194 +++++++++++++++---
 .../platform/mtk-vcodec/mtk_vcodec_dec_hw.c   | 184 +++++++++++++++++
 .../platform/mtk-vcodec/mtk_vcodec_dec_hw.h   |  49 +++++
 .../mtk-vcodec/mtk_vcodec_dec_stateful.c      |   1 +
 .../mtk-vcodec/mtk_vcodec_dec_stateless.c     |   1 +
 .../platform/mtk-vcodec/mtk_vcodec_drv.h      |  19 ++
 8 files changed, 416 insertions(+), 34 deletions(-)
 create mode 100644 drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c
 create mode 100644 drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.h

diff --git a/drivers/media/platform/mtk-vcodec/Makefile b/drivers/media/platform/mtk-vcodec/Makefile
index ca8e9e7a9c4e..edeb3b66e9e9 100644
--- a/drivers/media/platform/mtk-vcodec/Makefile
+++ b/drivers/media/platform/mtk-vcodec/Makefile
@@ -15,6 +15,7 @@ mtk-vcodec-dec-y := vdec/vdec_h264_if.o \
 		mtk_vcodec_dec_stateful.o \
 		mtk_vcodec_dec_stateless.o \
 		mtk_vcodec_dec_pm.o \
+		mtk_vcodec_dec_hw.o \
 
 mtk-vcodec-enc-y := venc/venc_vp8_if.o \
 		venc/venc_h264_if.o \
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.h
index 9fbd24186c1a..c509224cbff4 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.h
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.h
@@ -66,6 +66,7 @@ extern const struct v4l2_ioctl_ops mtk_vdec_ioctl_ops;
 extern const struct v4l2_m2m_ops mtk_vdec_m2m_ops;
 extern const struct media_device_ops mtk_vcodec_media_ops;
 
+extern struct platform_driver mtk_vdec_comp_driver;
 
 /*
  * mtk_vdec_lock/mtk_vdec_unlock are for ctx instance to
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
index dd749d41c75a..4c6f4d7612fa 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
@@ -5,6 +5,7 @@
  *         Tiffany Lin <tiffany.lin@mediatek.com>
  */
 
+#include <linux/component.h>
 #include <linux/slab.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
@@ -18,19 +19,90 @@
 
 #include "mtk_vcodec_drv.h"
 #include "mtk_vcodec_dec.h"
+#include "mtk_vcodec_dec_hw.h"
 #include "mtk_vcodec_dec_pm.h"
 #include "mtk_vcodec_intr.h"
-#include "mtk_vcodec_util.h"
 #include "mtk_vcodec_fw.h"
 
-#define VDEC_HW_ACTIVE	0x10
-#define VDEC_IRQ_CFG	0x11
-#define VDEC_IRQ_CLR	0x10
-#define VDEC_IRQ_CFG_REG	0xa4
-
 module_param(mtk_v4l2_dbg_level, int, 0644);
 module_param(mtk_vcodec_dbg, bool, 0644);
 
+static struct of_device_id mtk_vdec_drv_ids[] = {
+	{
+		.compatible = "mediatek,mtk-vcodec-lat",
+		.data = (void *)MTK_VDEC_LAT0,
+	},
+	{
+		.compatible = "mediatek,mtk-vcodec-core",
+		.data = (void *)MTK_VDEC_CORE,
+	},
+	{},
+};
+
+static inline int mtk_vdec_compare_of(struct device *dev, void *data)
+{
+	return dev->of_node == data;
+}
+
+static inline void mtk_vdec_release_of(struct device *dev, void *data)
+{
+	of_node_put(data);
+}
+
+static inline int mtk_vdec_bind(struct device *dev)
+{
+	struct mtk_vcodec_dev *data = dev_get_drvdata(dev);
+
+	return component_bind_all(dev, data);
+}
+
+static inline void mtk_vdec_unbind(struct device *dev)
+{
+	struct mtk_vcodec_dev *data = dev_get_drvdata(dev);
+
+	component_unbind_all(dev, data);
+}
+
+static const struct component_master_ops mtk_vdec_ops = {
+   .bind = mtk_vdec_bind,
+   .unbind = mtk_vdec_unbind,
+};
+
+static struct component_match *mtk_vcodec_match_add(
+	struct mtk_vcodec_dev *vdec_dev)
+ {
+	struct platform_device *pdev = vdec_dev->plat_dev;
+	struct component_match *match = NULL;
+	struct device_node *comp_node;
+	enum mtk_vdec_hw_id comp_idx;
+	const struct of_device_id *of_id;
+	int i;
+
+	for (i = 0; i < ARRAY_SIZE(mtk_vdec_drv_ids); i++) {
+		of_id = &mtk_vdec_drv_ids[i];
+		comp_node = of_find_compatible_node(NULL, NULL,
+			of_id->compatible);
+		if (!comp_node)
+			continue;
+
+		if (!of_device_is_available(comp_node)) {
+			of_node_put(comp_node);
+			dev_err(&pdev->dev, "Fail to get MMSYS node\n");
+			continue;
+		}
+
+		comp_idx = (enum mtk_vdec_hw_id)of_id->data;
+		mtk_v4l2_debug(4, "Get component:hw_id(%d),vdec_dev(0x%p),comp_node(0x%p)\n",
+			comp_idx, vdec_dev, comp_node);
+		vdec_dev->component_node[comp_idx] = comp_node;
+
+		component_match_add_release(&pdev->dev, &match, mtk_vdec_release_of,
+			mtk_vdec_compare_of, comp_node);
+	}
+
+	return match;
+}
+
 static irqreturn_t mtk_vcodec_dec_irq_handler(int irq, void *priv)
 {
 	struct mtk_vcodec_dev *dev = priv;
@@ -95,6 +167,58 @@ static int mtk_vcodec_get_reg_bases(struct mtk_vcodec_dev *dev)
 	return 0;
 }
 
+static int mtk_vcodec_init_master(struct mtk_vcodec_dev *dev)
+{
+	struct platform_device *pdev = dev->plat_dev;
+	struct component_match *match;
+	int ret;
+
+	match = mtk_vcodec_match_add(dev);
+	if (IS_ERR_OR_NULL(match))
+		return -EINVAL;
+
+	ret = component_master_add_with_match(&pdev->dev, &mtk_vdec_ops, match);
+	if (ret < 0)
+		return ret;
+
+	return 0;
+}
+
+static int mtk_vcodec_init_dec_params(struct mtk_vcodec_dev *dev)
+{
+	struct platform_device *pdev = dev->plat_dev;
+	int ret;
+
+	ret = mtk_vcodec_get_reg_bases(dev);
+	if (ret)
+		return ret;
+
+	if (!dev->vdec_pdata->is_comp_supported) {
+		dev->dec_irq = platform_get_irq(pdev, 0);
+		if (dev->dec_irq < 0) {
+			dev_err(&pdev->dev, "failed to get irq number");
+			return dev->dec_irq;
+		}
+
+		irq_set_status_flags(dev->dec_irq, IRQ_NOAUTOEN);
+		ret = devm_request_irq(&pdev->dev, dev->dec_irq,
+			mtk_vcodec_dec_irq_handler, 0, pdev->name, dev);
+		if (ret) {
+			dev_err(&pdev->dev, "failed to install dev->dec_irq %d (%d)",
+				dev->dec_irq, ret);
+			return ret;
+		}
+
+		ret = mtk_vcodec_init_dec_pm(pdev, &dev->pm);
+		if (ret < 0) {
+			dev_err(&pdev->dev, "failed to get mt vcodec clock source");
+			return ret;
+		}
+	}
+
+	return 0;
+}
+
 static int fops_vcodec_open(struct file *file)
 {
 	struct mtk_vcodec_dev *dev = video_drvdata(file);
@@ -220,7 +344,6 @@ static int mtk_vcodec_probe(struct platform_device *pdev)
 {
 	struct mtk_vcodec_dev *dev;
 	struct video_device *vfd_dec;
-	struct resource *res;
 	phandle rproc_phandle;
 	enum mtk_vcodec_fw_type fw_type;
 	int ret;
@@ -249,32 +372,10 @@ static int mtk_vcodec_probe(struct platform_device *pdev)
 	if (IS_ERR(dev->fw_handler))
 		return PTR_ERR(dev->fw_handler);
 
-	ret = mtk_vcodec_init_dec_pm(dev->plat_dev, &dev->pm);
-	if (ret < 0) {
-		dev_err(&pdev->dev, "Failed to get mt vcodec clock source");
-		goto err_dec_pm;
-	}
-
-	ret = mtk_vcodec_get_reg_bases(dev);
-	if (ret)
-		goto err_res;
-
-	res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
-	if (res == NULL) {
-		dev_err(&pdev->dev, "failed to get irq resource");
-		ret = -ENOENT;
-		goto err_res;
-	}
-
-	dev->dec_irq = platform_get_irq(pdev, 0);
-	irq_set_status_flags(dev->dec_irq, IRQ_NOAUTOEN);
-	ret = devm_request_irq(&pdev->dev, dev->dec_irq,
-			mtk_vcodec_dec_irq_handler, 0, pdev->name, dev);
+	ret = mtk_vcodec_init_dec_params(dev);
 	if (ret) {
-		dev_err(&pdev->dev, "Failed to install dev->dec_irq %d (%d)",
-			dev->dec_irq,
-			ret);
-		goto err_res;
+		dev_err(&pdev->dev, "Failed to init pm and registers");
+		goto err_dec_pm;
 	}
 
 	mutex_init(&dev->dec_mutex);
@@ -362,8 +463,14 @@ static int mtk_vcodec_probe(struct platform_device *pdev)
 	mtk_v4l2_debug(0, "decoder registered as /dev/video%d",
 		vfd_dec->num);
 
-	return 0;
+	if (dev->vdec_pdata->is_comp_supported) {
+		ret = mtk_vcodec_init_master(dev);
+		if (ret < 0)
+			goto err_component_match;
+	}
 
+	return 0;
+err_component_match:
 err_dec_reg:
 	if (dev->vdec_pdata->uses_stateless_api)
 		media_device_unregister(&dev->mdev_dec);
@@ -382,6 +489,7 @@ static int mtk_vcodec_probe(struct platform_device *pdev)
 	mtk_vcodec_release_dec_pm(&dev->pm);
 err_dec_pm:
 	mtk_vcodec_fw_release(dev->fw_handler);
+
 	return ret;
 }
 
@@ -436,7 +544,25 @@ static struct platform_driver mtk_vcodec_dec_driver = {
 	},
 };
 
-module_platform_driver(mtk_vcodec_dec_driver);
+static struct platform_driver * const mtk_vdec_drivers[] = {
+	&mtk_vdec_comp_driver,
+	&mtk_vcodec_dec_driver,
+};
+
+static int __init mtk_vdec_init(void)
+{
+	return platform_register_drivers(mtk_vdec_drivers,
+					 ARRAY_SIZE(mtk_vdec_drivers));
+}
+
+static void __exit mtk_vdec_exit(void)
+{
+	platform_unregister_drivers(mtk_vdec_drivers,
+				    ARRAY_SIZE(mtk_vdec_drivers));
+}
+
+module_init(mtk_vdec_init);
+module_exit(mtk_vdec_exit);
 
 MODULE_LICENSE("GPL v2");
 MODULE_DESCRIPTION("Mediatek video codec V4L2 decoder driver");
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c
new file mode 100644
index 000000000000..5e1b7670ba5b
--- /dev/null
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c
@@ -0,0 +1,184 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2021 MediaTek Inc.
+ * Author: Yunfei Dong <yunfei.dong@mediatek.com>
+ */
+
+#include <linux/component.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
+#include <linux/slab.h>
+
+#include "mtk_vcodec_drv.h"
+#include "mtk_vcodec_dec.h"
+#include "mtk_vcodec_dec_hw.h"
+#include "mtk_vcodec_dec_pm.h"
+#include "mtk_vcodec_intr.h"
+#include "mtk_vcodec_util.h"
+
+static int mtk_vdec_comp_bind(struct device *dev, struct device *master,
+	void *data)
+{
+	struct mtk_vdec_comp_dev *comp_dev = dev_get_drvdata(dev);
+	struct mtk_vcodec_dev *master_dev = data;
+	int i;
+
+	for (i = 0; i < MTK_VDEC_HW_MAX; i++) {
+		if (dev->of_node != master_dev->component_node[i])
+			continue;
+
+		master_dev->comp_dev[i] = comp_dev;
+		comp_dev->comp_idx = i;
+		comp_dev->master_dev = master_dev;
+		break;
+	}
+
+	if (i == MTK_VDEC_HW_MAX) {
+		dev_err(dev, "Failed to get component node\n");
+		return -EINVAL;
+	}
+
+	comp_dev->reg_base[VDEC_COMP_SYS] =
+		master_dev->reg_base[VDEC_COMP_SYS];
+	return 0;
+}
+
+static void mtk_vdec_comp_unbind(struct device *dev, struct device *master,
+	void *data)
+{
+	struct mtk_vdec_comp_dev *comp_dev = dev_get_drvdata(dev);
+
+	comp_dev->reg_base[VDEC_COMP_SYS] = NULL;
+}
+
+static const struct component_ops mtk_vdec_hw_component_ops = {
+	.bind = mtk_vdec_comp_bind,
+	.unbind = mtk_vdec_comp_unbind,
+};
+
+static irqreturn_t mtk_vdec_comp_irq_handler(int irq, void *priv)
+{
+	struct mtk_vdec_comp_dev *dev = priv;
+	struct mtk_vcodec_ctx *ctx;
+	u32 cg_status;
+	unsigned int dec_done_status;
+	void __iomem *vdec_misc_addr = dev->reg_base[VDEC_COMP_MISC] +
+					VDEC_IRQ_CFG_REG;
+
+	ctx = mtk_vcodec_get_curr_ctx(dev->master_dev);
+
+	/* check if HW active or not */
+	cg_status = readl(dev->reg_base[VDEC_COMP_SYS]);
+	if ((cg_status & VDEC_HW_ACTIVE) != 0) {
+		mtk_v4l2_err("vdec active is not 0x0 (0x%08x)",
+			cg_status);
+		return IRQ_HANDLED;
+	}
+
+	dec_done_status = readl(vdec_misc_addr);
+	if ((dec_done_status & MTK_VDEC_IRQ_STATUS_DEC_SUCCESS) !=
+		MTK_VDEC_IRQ_STATUS_DEC_SUCCESS)
+		return IRQ_HANDLED;
+
+	/* clear interrupt */
+	writel(dec_done_status | VDEC_IRQ_CFG, vdec_misc_addr);
+	writel(dec_done_status & ~VDEC_IRQ_CLR, vdec_misc_addr);
+
+	wake_up_ctx(ctx, MTK_INST_IRQ_RECEIVED);
+
+	mtk_v4l2_debug(3, "wake up ctx %d, dec_done_status=%x",
+		ctx->id, dec_done_status);
+
+	return IRQ_HANDLED;
+}
+
+static int mtk_vdec_comp_init_irq(struct mtk_vdec_comp_dev *dev)
+{
+	struct platform_device *pdev = dev->plat_dev;
+	int ret;
+
+	dev->dec_irq = platform_get_irq(pdev, 0);
+	if (dev->dec_irq < 0) {
+		dev_err(&pdev->dev, "Failed to get irq resource");
+		return dev->dec_irq;
+	}
+
+	irq_set_status_flags(dev->dec_irq, IRQ_NOAUTOEN);
+	ret = devm_request_irq(&pdev->dev, dev->dec_irq,
+				mtk_vdec_comp_irq_handler, 0, pdev->name, dev);
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to install dev->dec_irq %d (%d)",
+			dev->dec_irq, ret);
+		return ret;
+	}
+
+	return 0;
+}
+
+static int mtk_vdec_comp_probe(struct platform_device *pdev)
+{
+	struct mtk_vdec_comp_dev *dev;
+	int ret;
+
+	dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
+	if (!dev)
+		return -ENOMEM;
+
+	dev->plat_dev = pdev;
+	ret = mtk_vcodec_init_dec_pm(pdev, &dev->pm);
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to get mt vcodec clock source");
+		return ret;
+	}
+
+	dev->reg_base[VDEC_COMP_MISC] =
+		devm_platform_ioremap_resource(pdev, 0);
+	if (IS_ERR((__force void *)dev->reg_base[VDEC_COMP_MISC])) {
+		ret = PTR_ERR((__force void *)dev->reg_base[VDEC_COMP_MISC]);
+		goto err;
+	}
+
+	if (of_get_property(pdev->dev.of_node, "dma-ranges", NULL))
+		dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(34));
+
+	ret = mtk_vdec_comp_init_irq(dev);
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to register irq handler.\n");
+		goto err;
+	}
+
+	platform_set_drvdata(pdev, dev);
+
+	ret = component_add(&pdev->dev, &mtk_vdec_hw_component_ops);
+	if (ret) {
+		dev_err(&pdev->dev, "Failed to add component: %d\n", ret);
+		goto err;
+	}
+
+	return 0;
+err:
+	mtk_vcodec_release_dec_pm(&dev->pm);
+	return ret;
+}
+
+static const struct of_device_id mtk_vdec_comp_ids[] = {
+	{
+		.compatible = "mediatek,mtk-vcodec-lat",
+	},
+	{
+		.compatible = "mediatek,mtk-vcodec-core",
+	},
+	{},
+};
+MODULE_DEVICE_TABLE(of, mtk_vdec_comp_ids);
+
+struct platform_driver mtk_vdec_comp_driver = {
+	.probe	= mtk_vdec_comp_probe,
+	.driver	= {
+		.name	= "mtk-vdec-comp",
+		.of_match_table = mtk_vdec_comp_ids,
+	},
+};
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.h
new file mode 100644
index 000000000000..8d6e818a3474
--- /dev/null
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.h
@@ -0,0 +1,49 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2021 MediaTek Inc.
+ * Author: Yunfei Dong <yunfei.dong@mediatek.com>
+ */
+
+#ifndef _MTK_VCODEC_DEC_HW_H_
+#define _MTK_VCODEC_DEC_HW_H_
+
+#include <linux/io.h>
+#include <linux/platform_device.h>
+
+#include "mtk_vcodec_drv.h"
+
+#define VDEC_HW_ACTIVE	0x10
+#define VDEC_IRQ_CFG	0x11
+#define VDEC_IRQ_CLR	0x10
+#define VDEC_IRQ_CFG_REG	0xa4
+
+/**
+ * enum mtk_comp_hw_reg_idx - component register base index
+ */
+enum mtk_comp_hw_reg_idx {
+	VDEC_COMP_SYS,
+	VDEC_COMP_MISC,
+	VDEC_COMP_MAX
+};
+
+/**
+ * struct mtk_vdec_comp_dev - component framwork driver data
+ * @plat_dev: platform device
+ * @master_dev: master device
+ * @reg_base: Mapped address of MTK Vcodec registers.
+ *
+ * @dec_irq: decoder irq resource
+ * @pm: power management control
+ * @comp_idx: component index
+ */
+struct mtk_vdec_comp_dev {
+	struct platform_device *plat_dev;
+	struct mtk_vcodec_dev *master_dev;
+	void __iomem *reg_base[VDEC_COMP_MAX];
+
+	int dec_irq;
+	struct mtk_vcodec_pm pm;
+	int comp_idx;
+};
+
+#endif /* _MTK_VCODEC_DEC_HW_H_ */
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateful.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateful.c
index 59c24b22ab6d..4f9a80ce15d8 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateful.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateful.c
@@ -623,4 +623,5 @@ const struct mtk_vcodec_dec_pdata mtk_vdec_8173_pdata = {
 	.num_framesizes = NUM_SUPPORTED_FRAMESIZE,
 	.worker = mtk_vdec_worker,
 	.flush_decoder = mtk_vdec_flush_decoder,
+	.is_comp_supported = false,
 };
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateless.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateless.c
index 8f4a1f0a0769..762633572b49 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateless.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateless.c
@@ -357,4 +357,5 @@ const struct mtk_vcodec_dec_pdata mtk_vdec_8183_pdata = {
 	.uses_stateless_api = true,
 	.worker = mtk_vdec_worker,
 	.flush_decoder = mtk_vdec_flush_decoder,
+	.is_comp_supported = false,
 };
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
index 973b0b3649c6..e530757a9b5a 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
@@ -93,6 +93,17 @@ enum mtk_fmt_type {
 	MTK_FMT_FRAME = 2,
 };
 
+/**
+ * struct mtk_vdec_hw_id - Hardware index used to separate
+ *                         different hardware
+ */
+enum mtk_vdec_hw_id {
+	MTK_VDEC_CORE,
+	MTK_VDEC_LAT0,
+	MTK_VDEC_LAT1,
+	MTK_VDEC_HW_MAX,
+};
+
 /*
  * struct mtk_video_fmt - Structure used to store information about pixelformats
  */
@@ -331,6 +342,7 @@ enum mtk_chip {
  *
  * @chip: chip this decoder is compatible with
  *
+ * @is_comp_supported: true: using compoent framework, false: not support
  * @uses_stateless_api: whether the decoder uses the stateless API with requests
  */
 
@@ -352,6 +364,7 @@ struct mtk_vcodec_dec_pdata {
 
 	enum mtk_chip chip;
 
+	bool is_comp_supported;
 	bool uses_stateless_api;
 };
 
@@ -422,6 +435,9 @@ struct mtk_vcodec_enc_pdata {
  * @pm: power management control
  * @dec_capability: used to identify decode capability, ex: 4k
  * @enc_capability: used to identify encode capability
+ *
+ * @comp_dev: component hardware device
+ * @component_node: component node
  */
 struct mtk_vcodec_dev {
 	struct v4l2_device v4l2_dev;
@@ -459,6 +475,9 @@ struct mtk_vcodec_dev {
 	struct mtk_vcodec_pm pm;
 	unsigned int dec_capability;
 	unsigned int enc_capability;
+
+	void *comp_dev[MTK_VDEC_HW_MAX];
+	struct device_node *component_node[MTK_VDEC_HW_MAX];
 };
 
 static inline struct mtk_vcodec_ctx *fh_to_ctx(struct v4l2_fh *fh)
-- 
2.25.1


^ permalink raw reply	[flat|nested] 41+ messages in thread

* [PATCH v5, 05/15] dt-bindings: media: mtk-vcodec: Separate video encoder and decoder dt-bindings
  2021-08-11  2:57 [PATCH v5, 00/15] Using component framework to support multi hardware decode Yunfei Dong
                   ` (3 preceding siblings ...)
  2021-08-11  2:57 ` [PATCH v5, 04/15] media: mtk-vcodec: Use component framework to manage each hardware information Yunfei Dong
@ 2021-08-11  2:57 ` Yunfei Dong
  2021-08-17 20:33   ` Rob Herring
  2021-08-11  2:57 ` [PATCH v5, 06/15] media: mtk-vcodec: Use pure single core for MT8183 Yunfei Dong
                   ` (10 subsequent siblings)
  15 siblings, 1 reply; 41+ messages in thread
From: Yunfei Dong @ 2021-08-11  2:57 UTC (permalink / raw)
  To: Yunfei Dong, Alexandre Courbot, Hans Verkuil, Tzung-Bi Shih,
	Tiffany Lin, Andrew-CT Chen, Mauro Carvalho Chehab, Rob Herring,
	Matthias Brugger, Tomasz Figa
  Cc: Hsin-Yi Wang, Fritz Koenig, Irui Wang, linux-media, devicetree,
	linux-kernel, linux-arm-kernel, srv_heupstream, linux-mediatek,
	Project_Global_Chrome_Upstream_Group, George Sun

Decoder will use component framework to manage hardware, it is big
difference with encoder.

Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
---
v5: no changes
---
 .../media/mediatek,vcodec-decoder.yaml        | 175 +++++++++++++++++
 .../media/mediatek,vcodec-encoder.yaml        | 185 ++++++++++++++++++
 .../bindings/media/mediatek-vcodec.txt        | 130 ------------
 3 files changed, 360 insertions(+), 130 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/media/mediatek,vcodec-decoder.yaml
 create mode 100644 Documentation/devicetree/bindings/media/mediatek,vcodec-encoder.yaml
 delete mode 100644 Documentation/devicetree/bindings/media/mediatek-vcodec.txt

diff --git a/Documentation/devicetree/bindings/media/mediatek,vcodec-decoder.yaml b/Documentation/devicetree/bindings/media/mediatek,vcodec-decoder.yaml
new file mode 100644
index 000000000000..b6b97110024d
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/mediatek,vcodec-decoder.yaml
@@ -0,0 +1,175 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iommu/mediatek,vcodec-encoder.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Mediatek Video Decode Accelerator With Component
+
+maintainers:
+  - Yunfei Dong <yunfei.dong@mediatek.com>
+
+description: |+
+  Mediatek Video Decode is the video decode hardware present in Mediatek
+  SoCs which supports high resolution decoding functionalities.
+
+properties:
+  compatible:
+    enum:
+      - mediatek,mt8173-vcodec-dec
+      - mediatek,mt8183-vcodec-dec
+
+  reg:
+    maxItems: 12
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 8
+
+  clock-names:
+    items:
+      - const: vcodecpll
+      - const: univpll_d2
+      - const: clk_cci400_sel
+      - const: vdec_sel
+      - const: vdecpll
+      - const: vencpll
+      - const: venc_lt_sel
+      - const: vdec_bus_clk_src
+
+  assigned-clocks: true
+
+  assigned-clock-parents: true
+
+  assigned-clock-rates: true
+
+  power-domains:
+    maxItems: 1
+
+  iommus:
+    minItems: 1
+    maxItems: 32
+    description: |
+      List of the hardware port in respective IOMMU block for current Socs.
+      Refer to bindings/iommu/mediatek,iommu.yaml.
+
+  dma-ranges:
+    maxItems: 1
+    description: |
+      Describes the physical address space of IOMMU maps to memory.
+
+  mediatek,larb:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    maxItems: 1
+    description: |
+      Must contain the local arbiters in the current Socs.
+
+  mediatek,vpu:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    maxItems: 1
+    description:
+      Describes point to vpu.
+
+  mediatek,scp:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    maxItems: 1
+    description:
+      Describes point to scp.
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - iommus
+  - assigned-clocks
+  - assigned-clock-parents
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - mediatek,mt8183-vcodec-dec
+
+    then:
+      required:
+        - mediatek,scp
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - mediatek,mt8173-vcodec-dec
+
+    then:
+      required:
+        - mediatek,vpu
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/mt8173-clk.h>
+    #include <dt-bindings/memory/mt8173-larb-port.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/power/mt8173-power.h>
+
+    vcodec_dec: vcodec@16000000 {
+      compatible = "mediatek,mt8173-vcodec-dec";
+      reg = <0 0x16000000 0 0x100>,   /*VDEC_SYS*/
+          <0 0x16020000 0 0x1000>,  /*VDEC_MISC*/
+          <0 0x16021000 0 0x800>,   /*VDEC_LD*/
+          <0 0x16021800 0 0x800>,   /*VDEC_TOP*/
+          <0 0x16022000 0 0x1000>,  /*VDEC_CM*/
+          <0 0x16023000 0 0x1000>,  /*VDEC_AD*/
+          <0 0x16024000 0 0x1000>,  /*VDEC_AV*/
+          <0 0x16025000 0 0x1000>,  /*VDEC_PP*/
+          <0 0x16026800 0 0x800>,   /*VP8_VD*/
+          <0 0x16027000 0 0x800>,   /*VP6_VD*/
+          <0 0x16027800 0 0x800>,   /*VP8_VL*/
+          <0 0x16028400 0 0x400>;   /*VP9_VD*/
+      interrupts = <GIC_SPI 204 IRQ_TYPE_LEVEL_LOW>;
+      mediatek,larb = <&larb1>;
+      iommus = <&iommu M4U_PORT_HW_VDEC_MC_EXT>,
+             <&iommu M4U_PORT_HW_VDEC_PP_EXT>,
+             <&iommu M4U_PORT_HW_VDEC_AVC_MV_EXT>,
+             <&iommu M4U_PORT_HW_VDEC_PRED_RD_EXT>,
+             <&iommu M4U_PORT_HW_VDEC_PRED_WR_EXT>,
+             <&iommu M4U_PORT_HW_VDEC_UFO_EXT>,
+             <&iommu M4U_PORT_HW_VDEC_VLD_EXT>,
+             <&iommu M4U_PORT_HW_VDEC_VLD2_EXT>;
+      mediatek,vpu = <&vpu>;
+      power-domains = <&scpsys MT8173_POWER_DOMAIN_VDEC>;
+      clocks = <&apmixedsys CLK_APMIXED_VCODECPLL>,
+             <&topckgen CLK_TOP_UNIVPLL_D2>,
+             <&topckgen CLK_TOP_CCI400_SEL>,
+             <&topckgen CLK_TOP_VDEC_SEL>,
+             <&topckgen CLK_TOP_VCODECPLL>,
+             <&apmixedsys CLK_APMIXED_VENCPLL>,
+             <&topckgen CLK_TOP_VENC_LT_SEL>,
+             <&topckgen CLK_TOP_VCODECPLL_370P5>;
+      clock-names = "vcodecpll",
+                  "univpll_d2",
+                  "clk_cci400_sel",
+                  "vdec_sel",
+                  "vdecpll",
+                  "vencpll",
+                  "venc_lt_sel",
+                  "vdec_bus_clk_src";
+      assigned-clocks = <&topckgen CLK_TOP_VENC_LT_SEL>,
+                      <&topckgen CLK_TOP_CCI400_SEL>,
+                      <&topckgen CLK_TOP_VDEC_SEL>,
+                      <&apmixedsys CLK_APMIXED_VCODECPLL>,
+                      <&apmixedsys CLK_APMIXED_VENCPLL>;
+      assigned-clock-parents = <&topckgen CLK_TOP_VCODECPLL_370P5>,
+                             <&topckgen CLK_TOP_UNIVPLL_D2>,
+                             <&topckgen CLK_TOP_VCODECPLL>;
+      assigned-clock-rates = <0>, <0>, <0>, <1482000000>, <800000000>;
+    };
diff --git a/Documentation/devicetree/bindings/media/mediatek,vcodec-encoder.yaml b/Documentation/devicetree/bindings/media/mediatek,vcodec-encoder.yaml
new file mode 100644
index 000000000000..6f28394e8ce3
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/mediatek,vcodec-encoder.yaml
@@ -0,0 +1,185 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iommu/mediatek,vcodec-encoder.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Mediatek Video Encode Accelerator With Component
+
+maintainers:
+  - Yunfei Dong <yunfei.dong@mediatek.com>
+
+description: |+
+  Mediatek Video Encode is the video encode hardware present in Mediatek
+  SoCs which supports high resolution encoding functionalities.
+
+properties:
+  compatible:
+    enum:
+      - mediatek,mt8173-vcodec-enc-vp8
+      - mediatek,mt8173-vcodec-enc
+      - mediatek,mt8183-vcodec-enc
+      - mediatek,mt8192-vcodec-enc
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    minItems: 1
+    maxItems: 5
+
+  clock-names:
+    minItems: 1
+    maxItems: 5
+
+  assigned-clocks: true
+
+  assigned-clock-parents: true
+
+  iommus:
+    minItems: 1
+    maxItems: 32
+    description: |
+      List of the hardware port in respective IOMMU block for current Socs.
+      Refer to bindings/iommu/mediatek,iommu.yaml.
+
+  dma-ranges:
+    maxItems: 1
+    description: |
+      Describes the physical address space of IOMMU maps to memory.
+
+  mediatek,larb:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    maxItems: 1
+    description: |
+      Must contain the local arbiters in the current Socs.
+
+  mediatek,vpu:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    maxItems: 1
+    description:
+      Describes point to vpu.
+
+  mediatek,scp:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    maxItems: 1
+    description:
+      Describes point to scp.
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+  - iommus
+  - assigned-clocks
+  - assigned-clock-parents
+
+allOf:
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - mediatek,mt8183-vcodec-enc
+              - mediatek,mt8192-vcodec-enc
+
+    then:
+      required:
+        - mediatek,scp
+
+  - if:
+      properties:
+        compatible:
+          contains:
+            enum:
+              - mediatek,mt8173-vcodec-enc-vp8
+              - mediatek,mt8173-vcodec-enc
+
+    then:
+      required:
+        - mediatek,vpu
+
+  - if:
+      properties:
+        compatible:
+          enum:
+            - mediatek,mt8173-vcodec-enc
+            - mediatek,mt8192-vcodec-enc
+            - mediatek,mt8173-vcodec-enc
+
+    then:
+      properties:
+        clock:
+          items:
+            minItems: 1
+            maxItems: 1
+        clock-names:
+          items:
+            - const: venc_sel
+    else:  # for vp8 hw decoder
+      properties:
+        clock:
+          items:
+            minItems: 1
+            maxItems: 1
+        clock-names:
+          items:
+            - const: venc_lt_sel
+ 
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/mt8173-clk.h>
+    #include <dt-bindings/memory/mt8173-larb-port.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+
+    vcodec_enc_avc: vcodec@18002000 {
+      compatible = "mediatek,mt8173-vcodec-enc";
+      reg = <0 0x18002000 0 0x1000>;
+      interrupts = <GIC_SPI 198 IRQ_TYPE_LEVEL_LOW>;
+      iommus = <&iommu M4U_PORT_VENC_RCPU>,
+             <&iommu M4U_PORT_VENC_REC>,
+             <&iommu M4U_PORT_VENC_BSDMA>,
+             <&iommu M4U_PORT_VENC_SV_COMV>,
+             <&iommu M4U_PORT_VENC_RD_COMV>,
+             <&iommu M4U_PORT_VENC_CUR_LUMA>,
+             <&iommu M4U_PORT_VENC_CUR_CHROMA>,
+             <&iommu M4U_PORT_VENC_REF_LUMA>,
+             <&iommu M4U_PORT_VENC_REF_CHROMA>,
+             <&iommu M4U_PORT_VENC_NBM_RDMA>,
+             <&iommu M4U_PORT_VENC_NBM_WDMA>;
+      mediatek,larb = <&larb3>;
+      mediatek,vpu = <&vpu>;
+      clocks = <&topckgen CLK_TOP_VENC_SEL>;
+      clock-names = "venc_sel";
+      assigned-clocks = <&topckgen CLK_TOP_VENC_SEL>;
+      assigned-clock-parents = <&topckgen CLK_TOP_VCODECPLL>;
+    };
+
+    vcodec_enc_vp8: vcodec@19002000 {
+      compatible = "mediatek,mt8173-vcodec-enc-vp8";
+      reg =  <0 0x19002000 0 0x1000>;	/* VENC_LT_SYS */
+      interrupts = <GIC_SPI 202 IRQ_TYPE_LEVEL_LOW>;
+      iommus = <&iommu M4U_PORT_VENC_RCPU_SET2>,
+             <&iommu M4U_PORT_VENC_REC_FRM_SET2>,
+             <&iommu M4U_PORT_VENC_BSDMA_SET2>,
+             <&iommu M4U_PORT_VENC_SV_COMA_SET2>,
+             <&iommu M4U_PORT_VENC_RD_COMA_SET2>,
+             <&iommu M4U_PORT_VENC_CUR_LUMA_SET2>,
+             <&iommu M4U_PORT_VENC_CUR_CHROMA_SET2>,
+             <&iommu M4U_PORT_VENC_REF_LUMA_SET2>,
+             <&iommu M4U_PORT_VENC_REC_CHROMA_SET2>;
+      mediatek,larb = <&larb5>;
+      mediatek,vpu = <&vpu>;
+      clocks = <&topckgen CLK_TOP_VENC_LT_SEL>;
+      clock-names = "venc_lt_sel";
+      assigned-clocks = <&topckgen CLK_TOP_VENC_LT_SEL>;
+      assigned-clock-parents = <&topckgen CLK_TOP_VCODECPLL_370P5>;
+    };
diff --git a/Documentation/devicetree/bindings/media/mediatek-vcodec.txt b/Documentation/devicetree/bindings/media/mediatek-vcodec.txt
deleted file mode 100644
index c44a6e6943af..000000000000
--- a/Documentation/devicetree/bindings/media/mediatek-vcodec.txt
+++ /dev/null
@@ -1,130 +0,0 @@
-Mediatek Video Codec
-
-Mediatek Video Codec is the video codec hw present in Mediatek SoCs which
-supports high resolution encoding and decoding functionalities.
-
-Required properties:
-- compatible : must be one of the following string:
-  "mediatek,mt8173-vcodec-enc-vp8" for mt8173 vp8 encoder.
-  "mediatek,mt8173-vcodec-enc" for mt8173 avc encoder.
-  "mediatek,mt8183-vcodec-enc" for MT8183 encoder.
-  "mediatek,mt8173-vcodec-dec" for MT8173 decoder.
-  "mediatek,mt8192-vcodec-enc" for MT8192 encoder.
-  "mediatek,mt8183-vcodec-dec" for MT8183 decoder.
-- reg : Physical base address of the video codec registers and length of
-  memory mapped region.
-- interrupts : interrupt number to the cpu.
-- mediatek,larb : must contain the local arbiters in the current Socs.
-- clocks : list of clock specifiers, corresponding to entries in
-  the clock-names property.
-- clock-names: avc encoder must contain "venc_sel", vp8 encoder must
-  contain "venc_lt_sel", decoder must contain "vcodecpll", "univpll_d2",
-  "clk_cci400_sel", "vdec_sel", "vdecpll", "vencpll", "venc_lt_sel",
-  "vdec_bus_clk_src".
-- iommus : should point to the respective IOMMU block with master port as
-  argument, see Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml
-  for details.
-- dma-ranges : describes the dma address range space that the codec hw access.
-One of the two following nodes:
-- mediatek,vpu : the node of the video processor unit, if using VPU.
-- mediatek,scp : the node of the SCP unit, if using SCP.
-
-
-Example:
-
-vcodec_dec: vcodec@16000000 {
-    compatible = "mediatek,mt8173-vcodec-dec";
-    reg = <0 0x16000000 0 0x100>,   /*VDEC_SYS*/
-          <0 0x16020000 0 0x1000>,  /*VDEC_MISC*/
-          <0 0x16021000 0 0x800>,   /*VDEC_LD*/
-          <0 0x16021800 0 0x800>,   /*VDEC_TOP*/
-          <0 0x16022000 0 0x1000>,  /*VDEC_CM*/
-          <0 0x16023000 0 0x1000>,  /*VDEC_AD*/
-          <0 0x16024000 0 0x1000>,  /*VDEC_AV*/
-          <0 0x16025000 0 0x1000>,  /*VDEC_PP*/
-          <0 0x16026800 0 0x800>,   /*VP8_VD*/
-          <0 0x16027000 0 0x800>,   /*VP6_VD*/
-          <0 0x16027800 0 0x800>,   /*VP8_VL*/
-          <0 0x16028400 0 0x400>;   /*VP9_VD*/
-    interrupts = <GIC_SPI 204 IRQ_TYPE_LEVEL_LOW>;
-    mediatek,larb = <&larb1>;
-    iommus = <&iommu M4U_PORT_HW_VDEC_MC_EXT>,
-             <&iommu M4U_PORT_HW_VDEC_PP_EXT>,
-             <&iommu M4U_PORT_HW_VDEC_AVC_MV_EXT>,
-             <&iommu M4U_PORT_HW_VDEC_PRED_RD_EXT>,
-             <&iommu M4U_PORT_HW_VDEC_PRED_WR_EXT>,
-             <&iommu M4U_PORT_HW_VDEC_UFO_EXT>,
-             <&iommu M4U_PORT_HW_VDEC_VLD_EXT>,
-             <&iommu M4U_PORT_HW_VDEC_VLD2_EXT>;
-    mediatek,vpu = <&vpu>;
-    power-domains = <&scpsys MT8173_POWER_DOMAIN_VDEC>;
-    clocks = <&apmixedsys CLK_APMIXED_VCODECPLL>,
-             <&topckgen CLK_TOP_UNIVPLL_D2>,
-             <&topckgen CLK_TOP_CCI400_SEL>,
-             <&topckgen CLK_TOP_VDEC_SEL>,
-             <&topckgen CLK_TOP_VCODECPLL>,
-             <&apmixedsys CLK_APMIXED_VENCPLL>,
-             <&topckgen CLK_TOP_VENC_LT_SEL>,
-             <&topckgen CLK_TOP_VCODECPLL_370P5>;
-    clock-names = "vcodecpll",
-                  "univpll_d2",
-                  "clk_cci400_sel",
-                  "vdec_sel",
-                  "vdecpll",
-                  "vencpll",
-                  "venc_lt_sel",
-                  "vdec_bus_clk_src";
-    assigned-clocks = <&topckgen CLK_TOP_VENC_LT_SEL>,
-                      <&topckgen CLK_TOP_CCI400_SEL>,
-                      <&topckgen CLK_TOP_VDEC_SEL>,
-                      <&apmixedsys CLK_APMIXED_VCODECPLL>,
-                      <&apmixedsys CLK_APMIXED_VENCPLL>;
-    assigned-clock-parents = <&topckgen CLK_TOP_VCODECPLL_370P5>,
-                             <&topckgen CLK_TOP_UNIVPLL_D2>,
-                             <&topckgen CLK_TOP_VCODECPLL>;
-    assigned-clock-rates = <0>, <0>, <0>, <1482000000>, <800000000>;
-  };
-
-vcodec_enc_avc: vcodec@18002000 {
-    compatible = "mediatek,mt8173-vcodec-enc";
-    reg = <0 0x18002000 0 0x1000>;
-    interrupts = <GIC_SPI 198 IRQ_TYPE_LEVEL_LOW>;
-    iommus = <&iommu M4U_PORT_VENC_RCPU>,
-             <&iommu M4U_PORT_VENC_REC>,
-             <&iommu M4U_PORT_VENC_BSDMA>,
-             <&iommu M4U_PORT_VENC_SV_COMV>,
-             <&iommu M4U_PORT_VENC_RD_COMV>,
-             <&iommu M4U_PORT_VENC_CUR_LUMA>,
-             <&iommu M4U_PORT_VENC_CUR_CHROMA>,
-             <&iommu M4U_PORT_VENC_REF_LUMA>,
-             <&iommu M4U_PORT_VENC_REF_CHROMA>,
-             <&iommu M4U_PORT_VENC_NBM_RDMA>,
-             <&iommu M4U_PORT_VENC_NBM_WDMA>;
-    mediatek,larb = <&larb3>;
-    mediatek,vpu = <&vpu>;
-    clocks = <&topckgen CLK_TOP_VENC_SEL>;
-    clock-names = "venc_sel";
-    assigned-clocks = <&topckgen CLK_TOP_VENC_SEL>;
-    assigned-clock-parents = <&topckgen CLK_TOP_VCODECPLL>;
-  };
-
-vcodec_enc_vp8: vcodec@19002000 {
-    compatible = "mediatek,mt8173-vcodec-enc-vp8";
-    reg =  <0 0x19002000 0 0x1000>;	/* VENC_LT_SYS */
-    interrupts = <GIC_SPI 202 IRQ_TYPE_LEVEL_LOW>;
-    iommus = <&iommu M4U_PORT_VENC_RCPU_SET2>,
-             <&iommu M4U_PORT_VENC_REC_FRM_SET2>,
-             <&iommu M4U_PORT_VENC_BSDMA_SET2>,
-             <&iommu M4U_PORT_VENC_SV_COMA_SET2>,
-             <&iommu M4U_PORT_VENC_RD_COMA_SET2>,
-             <&iommu M4U_PORT_VENC_CUR_LUMA_SET2>,
-             <&iommu M4U_PORT_VENC_CUR_CHROMA_SET2>,
-             <&iommu M4U_PORT_VENC_REF_LUMA_SET2>,
-             <&iommu M4U_PORT_VENC_REC_CHROMA_SET2>;
-    mediatek,larb = <&larb5>;
-    mediatek,vpu = <&vpu>;
-    clocks = <&topckgen CLK_TOP_VENC_LT_SEL>;
-    clock-names = "venc_lt_sel";
-    assigned-clocks = <&topckgen CLK_TOP_VENC_LT_SEL>;
-    assigned-clock-parents = <&topckgen CLK_TOP_VCODECPLL_370P5>;
-  };
-- 
2.25.1


^ permalink raw reply	[flat|nested] 41+ messages in thread

* [PATCH v5, 06/15] media: mtk-vcodec: Use pure single core for MT8183
  2021-08-11  2:57 [PATCH v5, 00/15] Using component framework to support multi hardware decode Yunfei Dong
                   ` (4 preceding siblings ...)
  2021-08-11  2:57 ` [PATCH v5, 05/15] dt-bindings: media: mtk-vcodec: Separate video encoder and decoder dt-bindings Yunfei Dong
@ 2021-08-11  2:57 ` Yunfei Dong
  2021-08-11  2:57 ` [PATCH v5, 07/15] media: mtk-vcodec: Add irq interface for multi hardware Yunfei Dong
                   ` (9 subsequent siblings)
  15 siblings, 0 replies; 41+ messages in thread
From: Yunfei Dong @ 2021-08-11  2:57 UTC (permalink / raw)
  To: Yunfei Dong, Alexandre Courbot, Hans Verkuil, Tzung-Bi Shih,
	Tiffany Lin, Andrew-CT Chen, Mauro Carvalho Chehab, Rob Herring,
	Matthias Brugger, Tomasz Figa
  Cc: Hsin-Yi Wang, Fritz Koenig, Irui Wang, linux-media, devicetree,
	linux-kernel, linux-arm-kernel, srv_heupstream, linux-mediatek,
	Project_Global_Chrome_Upstream_Group, George Sun

Separates different architecture for hardware: pure_sin_core
and lat_sin_core. MT8183 is pure single core. Uses .hw_arch to
distinguish.

Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
---
v5: no changes
---
 .../platform/mtk-vcodec/mtk_vcodec_dec_stateful.c      |  1 +
 .../platform/mtk-vcodec/mtk_vcodec_dec_stateless.c     |  1 +
 drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h     | 10 ++++++++++
 3 files changed, 12 insertions(+)

diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateful.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateful.c
index 4f9a80ce15d8..138f6fcb36bb 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateful.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateful.c
@@ -624,4 +624,5 @@ const struct mtk_vcodec_dec_pdata mtk_vdec_8173_pdata = {
 	.worker = mtk_vdec_worker,
 	.flush_decoder = mtk_vdec_flush_decoder,
 	.is_comp_supported = false,
+	.hw_arch = MTK_VDEC_PURE_SINGLE_CORE,
 };
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateless.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateless.c
index 762633572b49..12c243d6dff3 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateless.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_stateless.c
@@ -358,4 +358,5 @@ const struct mtk_vcodec_dec_pdata mtk_vdec_8183_pdata = {
 	.worker = mtk_vdec_worker,
 	.flush_decoder = mtk_vdec_flush_decoder,
 	.is_comp_supported = false,
+	.hw_arch = MTK_VDEC_PURE_SINGLE_CORE,
 };
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
index e530757a9b5a..1d0798fd9adf 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
@@ -323,6 +323,14 @@ enum mtk_chip {
 	MTK_MT8192,
 };
 
+/**
+ * struct mtk_vdec_hw_arch - Used to separate different hardware architecture
+ */
+enum mtk_vdec_hw_arch {
+	MTK_VDEC_PURE_SINGLE_CORE,
+	MTK_VDEC_LAT_SINGLE_CORE,
+};
+
 /**
  * struct mtk_vcodec_dec_pdata - compatible data for each IC
  * @init_vdec_params: init vdec params
@@ -341,6 +349,7 @@ enum mtk_chip {
  * @num_framesizes: count of video decoder frame sizes
  *
  * @chip: chip this decoder is compatible with
+ * @hw_arch: hardware arch is used to separate pure_sin_core and lat_sin_core
  *
  * @is_comp_supported: true: using compoent framework, false: not support
  * @uses_stateless_api: whether the decoder uses the stateless API with requests
@@ -363,6 +372,7 @@ struct mtk_vcodec_dec_pdata {
 	const int num_framesizes;
 
 	enum mtk_chip chip;
+	enum mtk_vdec_hw_arch hw_arch;
 
 	bool is_comp_supported;
 	bool uses_stateless_api;
-- 
2.25.1


^ permalink raw reply	[flat|nested] 41+ messages in thread

* [PATCH v5, 07/15] media: mtk-vcodec: Add irq interface for multi hardware
  2021-08-11  2:57 [PATCH v5, 00/15] Using component framework to support multi hardware decode Yunfei Dong
                   ` (5 preceding siblings ...)
  2021-08-11  2:57 ` [PATCH v5, 06/15] media: mtk-vcodec: Use pure single core for MT8183 Yunfei Dong
@ 2021-08-11  2:57 ` Yunfei Dong
  2021-08-11  2:57 ` [PATCH v5, 08/15] media: mtk-vcodec: Add msg queue feature for lat and core architecture Yunfei Dong
                   ` (8 subsequent siblings)
  15 siblings, 0 replies; 41+ messages in thread
From: Yunfei Dong @ 2021-08-11  2:57 UTC (permalink / raw)
  To: Yunfei Dong, Alexandre Courbot, Hans Verkuil, Tzung-Bi Shih,
	Tiffany Lin, Andrew-CT Chen, Mauro Carvalho Chehab, Rob Herring,
	Matthias Brugger, Tomasz Figa
  Cc: Hsin-Yi Wang, Fritz Koenig, Irui Wang, linux-media, devicetree,
	linux-kernel, linux-arm-kernel, srv_heupstream, linux-mediatek,
	Project_Global_Chrome_Upstream_Group, George Sun

Adds irq interface for multi hardware.

Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
---
v5: no changes
---
 .../platform/mtk-vcodec/mtk_vcodec_dec_drv.c  | 33 +++++++++++++++++--
 .../platform/mtk-vcodec/mtk_vcodec_dec_hw.c   |  2 +-
 .../platform/mtk-vcodec/mtk_vcodec_drv.h      | 25 ++++++++++----
 .../platform/mtk-vcodec/mtk_vcodec_enc_drv.c  |  4 +--
 .../platform/mtk-vcodec/mtk_vcodec_intr.c     | 27 +++++++--------
 .../platform/mtk-vcodec/mtk_vcodec_intr.h     |  4 +--
 .../platform/mtk-vcodec/vdec/vdec_h264_if.c   |  2 +-
 .../mtk-vcodec/vdec/vdec_h264_req_if.c        |  2 +-
 .../platform/mtk-vcodec/vdec/vdec_vp8_if.c    |  2 +-
 .../platform/mtk-vcodec/vdec/vdec_vp9_if.c    |  2 +-
 .../platform/mtk-vcodec/venc/venc_h264_if.c   |  2 +-
 .../platform/mtk-vcodec/venc/venc_vp8_if.c    |  2 +-
 12 files changed, 71 insertions(+), 36 deletions(-)

diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
index 4c6f4d7612fa..f096ad1c01ac 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
@@ -68,6 +68,20 @@ static const struct component_master_ops mtk_vdec_ops = {
    .unbind = mtk_vdec_unbind,
 };
 
+static int mtk_vcodec_get_hw_count(struct mtk_vcodec_dev *dev)
+{
+	switch (dev->vdec_pdata->hw_arch) {
+	case MTK_VDEC_PURE_SINGLE_CORE:
+		return MTK_VDEC_ONE_CORE;
+	case MTK_VDEC_LAT_SINGLE_CORE:
+		return MTK_VDEC_ONE_LAT_ONE_CORE;
+	default:
+		mtk_v4l2_err("not support hw arch:%d",
+			dev->vdec_pdata->hw_arch);
+		return MTK_VDEC_NO_HW;
+	}
+}
+
 static struct component_match *mtk_vcodec_match_add(
 	struct mtk_vcodec_dev *vdec_dev)
  {
@@ -134,7 +148,7 @@ static irqreturn_t mtk_vcodec_dec_irq_handler(int irq, void *priv)
 	writel((readl(vdec_misc_addr) & ~VDEC_IRQ_CLR),
 		dev->reg_base[VDEC_MISC] + VDEC_IRQ_CFG_REG);
 
-	wake_up_ctx(ctx, MTK_INST_IRQ_RECEIVED);
+	wake_up_ctx(ctx, MTK_INST_IRQ_RECEIVED, 0);
 
 	mtk_v4l2_debug(3,
 			"mtk_vcodec_dec_irq_handler :wake up ctx %d, dec_done_status=%x",
@@ -223,7 +237,7 @@ static int fops_vcodec_open(struct file *file)
 {
 	struct mtk_vcodec_dev *dev = video_drvdata(file);
 	struct mtk_vcodec_ctx *ctx = NULL;
-	int ret = 0;
+	int ret = 0, i, hw_count;
 	struct vb2_queue *src_vq;
 
 	ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
@@ -237,7 +251,19 @@ static int fops_vcodec_open(struct file *file)
 	v4l2_fh_add(&ctx->fh);
 	INIT_LIST_HEAD(&ctx->list);
 	ctx->dev = dev;
-	init_waitqueue_head(&ctx->queue);
+
+	if (ctx->dev->vdec_pdata->is_comp_supported) {
+		hw_count = mtk_vcodec_get_hw_count(dev);
+		if (!hw_count) {
+			ret = -EINVAL;
+			goto err_init_queue;
+		}
+		for (i = 0; i < hw_count; i++)
+			init_waitqueue_head(&ctx->queue[i]);
+	} else {
+		init_waitqueue_head(&ctx->queue[0]);
+	}
+
 	mutex_init(&ctx->lock);
 
 	ctx->type = MTK_INST_DECODER;
@@ -294,6 +320,7 @@ static int fops_vcodec_open(struct file *file)
 err_m2m_ctx_init:
 	v4l2_ctrl_handler_free(&ctx->ctrl_hdl);
 err_ctrls_setup:
+err_init_queue:
 	v4l2_fh_del(&ctx->fh);
 	v4l2_fh_exit(&ctx->fh);
 	kfree(ctx);
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c
index 5e1b7670ba5b..7a31afd294ba 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c
@@ -87,7 +87,7 @@ static irqreturn_t mtk_vdec_comp_irq_handler(int irq, void *priv)
 	writel(dec_done_status | VDEC_IRQ_CFG, vdec_misc_addr);
 	writel(dec_done_status & ~VDEC_IRQ_CLR, vdec_misc_addr);
 
-	wake_up_ctx(ctx, MTK_INST_IRQ_RECEIVED);
+	wake_up_ctx(ctx, MTK_INST_IRQ_RECEIVED, dev->comp_idx);
 
 	mtk_v4l2_debug(3, "wake up ctx %d, dec_done_status=%x",
 		ctx->id, dec_done_status);
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
index 1d0798fd9adf..08fd43106fc7 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
@@ -104,6 +104,16 @@ enum mtk_vdec_hw_id {
 	MTK_VDEC_HW_MAX,
 };
 
+/**
+ * struct mtk_vdec_hw_count - Supported hardware count
+ */
+enum mtk_vdec_hw_count {
+	MTK_VDEC_NO_HW = 0,
+	MTK_VDEC_ONE_CORE,
+	MTK_VDEC_ONE_LAT_ONE_CORE,
+	MTK_VDEC_MAX_HW_COUNT,
+};
+
 /*
  * struct mtk_video_fmt - Structure used to store information about pixelformats
  */
@@ -293,9 +303,9 @@ struct mtk_vcodec_ctx {
 	struct vdec_pic_info picinfo;
 	int dpb_size;
 
-	int int_cond;
-	int int_type;
-	wait_queue_head_t queue;
+	int int_cond[MTK_VDEC_HW_MAX];
+	int int_type[MTK_VDEC_HW_MAX];
+	wait_queue_head_t queue[MTK_VDEC_HW_MAX];
 	unsigned int irq_status;
 
 	struct v4l2_ctrl_handler ctrl_hdl;
@@ -501,11 +511,12 @@ static inline struct mtk_vcodec_ctx *ctrl_to_ctx(struct v4l2_ctrl *ctrl)
 }
 
 /* Wake up context wait_queue */
-static inline void wake_up_ctx(struct mtk_vcodec_ctx *ctx, unsigned int reason)
+static inline void wake_up_ctx(struct mtk_vcodec_ctx *ctx, unsigned int reason,
+	unsigned int hw_id)
 {
-	ctx->int_cond = 1;
-	ctx->int_type = reason;
-	wake_up_interruptible(&ctx->queue);
+	ctx->int_cond[hw_id] = 1;
+	ctx->int_type[hw_id] = reason;
+	wake_up_interruptible(&ctx->queue[hw_id]);
 }
 
 #endif /* _MTK_VCODEC_DRV_H_ */
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c
index 2828df77020c..c7540c0cdcea 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_enc_drv.c
@@ -114,7 +114,7 @@ static irqreturn_t mtk_vcodec_enc_irq_handler(int irq, void *priv)
 
 	clean_irq_status(ctx->irq_status, addr);
 
-	wake_up_ctx(ctx, MTK_INST_IRQ_RECEIVED);
+	wake_up_ctx(ctx, MTK_INST_IRQ_RECEIVED, 0);
 	return IRQ_HANDLED;
 }
 
@@ -140,7 +140,7 @@ static int fops_vcodec_open(struct file *file)
 	v4l2_fh_add(&ctx->fh);
 	INIT_LIST_HEAD(&ctx->list);
 	ctx->dev = dev;
-	init_waitqueue_head(&ctx->queue);
+	init_waitqueue_head(&ctx->queue[0]);
 
 	ctx->type = MTK_INST_ENCODER;
 	ret = mtk_vcodec_enc_ctrls_setup(ctx);
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_intr.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_intr.c
index 70580c2525ba..8147533da98b 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_intr.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_intr.c
@@ -11,34 +11,31 @@
 #include "mtk_vcodec_intr.h"
 #include "mtk_vcodec_util.h"
 
-int mtk_vcodec_wait_for_done_ctx(struct mtk_vcodec_ctx  *ctx, int command,
-				 unsigned int timeout_ms)
+int mtk_vcodec_wait_for_done_ctx(struct mtk_vcodec_ctx *ctx,
+	int command, unsigned int timeout_ms, unsigned hw_id)
 {
-	wait_queue_head_t *waitqueue;
 	long timeout_jiff, ret;
 	int status = 0;
 
-	waitqueue = (wait_queue_head_t *)&ctx->queue;
 	timeout_jiff = msecs_to_jiffies(timeout_ms);
-
-	ret = wait_event_interruptible_timeout(*waitqueue,
-				ctx->int_cond,
+	ret = wait_event_interruptible_timeout(ctx->queue[hw_id],
+				ctx->int_cond[hw_id],
 				timeout_jiff);
 
 	if (!ret) {
 		status = -1;	/* timeout */
-		mtk_v4l2_err("[%d] ctx->type=%d, cmd=%d, wait_event_interruptible_timeout time=%ums out %d %d!",
-			     ctx->id, ctx->type, command, timeout_ms,
-			     ctx->int_cond, ctx->int_type);
+		mtk_v4l2_err("[%d] cmd=%d, type=%d, dec timeout=%ums (%d %d)",
+				ctx->id, command, ctx->type, timeout_ms,
+				ctx->int_cond[hw_id], ctx->int_type[hw_id]);
 	} else if (-ERESTARTSYS == ret) {
-		mtk_v4l2_err("[%d] ctx->type=%d, cmd=%d, wait_event_interruptible_timeout interrupted by a signal %d %d",
-			     ctx->id, ctx->type, command, ctx->int_cond,
-			     ctx->int_type);
 		status = -1;
+		mtk_v4l2_err("[%d] cmd=%d, type=%d, dec inter fail (%d %d)",
+				ctx->id, command, ctx->type,
+				ctx->int_cond[hw_id], ctx->int_type[hw_id]);
 	}
 
-	ctx->int_cond = 0;
-	ctx->int_type = 0;
+	ctx->int_cond[hw_id] = 0;
+	ctx->int_type[hw_id] = 0;
 
 	return status;
 }
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_intr.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_intr.h
index 638cd1f3526a..2bf4cabfaa43 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_intr.h
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_intr.h
@@ -12,7 +12,7 @@
 struct mtk_vcodec_ctx;
 
 /* timeout is ms */
-int mtk_vcodec_wait_for_done_ctx(struct mtk_vcodec_ctx *data, int command,
-				unsigned int timeout_ms);
+int mtk_vcodec_wait_for_done_ctx(struct mtk_vcodec_ctx *ctx,
+				int command, unsigned int timeout_ms, unsigned int hw_id);
 
 #endif /* _MTK_VCODEC_INTR_H_ */
diff --git a/drivers/media/platform/mtk-vcodec/vdec/vdec_h264_if.c b/drivers/media/platform/mtk-vcodec/vdec/vdec_h264_if.c
index 40d6e6c5ac7a..481655bb6016 100644
--- a/drivers/media/platform/mtk-vcodec/vdec/vdec_h264_if.c
+++ b/drivers/media/platform/mtk-vcodec/vdec/vdec_h264_if.c
@@ -413,7 +413,7 @@ static int vdec_h264_decode(void *h_vdec, struct mtk_vcodec_mem *bs,
 		/* wait decoder done interrupt */
 		err = mtk_vcodec_wait_for_done_ctx(inst->ctx,
 						   MTK_INST_IRQ_RECEIVED,
-						   WAIT_INTR_TIMEOUT_MS);
+						   WAIT_INTR_TIMEOUT_MS, 0);
 		if (err)
 			goto err_free_fb_out;
 
diff --git a/drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c b/drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c
index 4dde9ee786b4..d23baa364246 100644
--- a/drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c
+++ b/drivers/media/platform/mtk-vcodec/vdec/vdec_h264_req_if.c
@@ -724,7 +724,7 @@ static int vdec_h264_slice_decode(void *h_vdec, struct mtk_vcodec_mem *bs,
 	/* wait decoder done interrupt */
 	err = mtk_vcodec_wait_for_done_ctx(inst->ctx,
 					   MTK_INST_IRQ_RECEIVED,
-					   WAIT_INTR_TIMEOUT_MS);
+					   WAIT_INTR_TIMEOUT_MS, 0);
 	if (err)
 		goto err_free_fb_out;
 	vpu_dec_end(vpu);
diff --git a/drivers/media/platform/mtk-vcodec/vdec/vdec_vp8_if.c b/drivers/media/platform/mtk-vcodec/vdec/vdec_vp8_if.c
index e5393f841080..88c046731754 100644
--- a/drivers/media/platform/mtk-vcodec/vdec/vdec_vp8_if.c
+++ b/drivers/media/platform/mtk-vcodec/vdec/vdec_vp8_if.c
@@ -488,7 +488,7 @@ static int vdec_vp8_decode(void *h_vdec, struct mtk_vcodec_mem *bs,
 
 	/* wait decoder done interrupt */
 	mtk_vcodec_wait_for_done_ctx(inst->ctx, MTK_INST_IRQ_RECEIVED,
-				     WAIT_INTR_TIMEOUT_MS);
+				     WAIT_INTR_TIMEOUT_MS, 0);
 
 	if (inst->vsi->load_data)
 		load_dec_table(inst);
diff --git a/drivers/media/platform/mtk-vcodec/vdec/vdec_vp9_if.c b/drivers/media/platform/mtk-vcodec/vdec/vdec_vp9_if.c
index 71cdc3ddafcb..70b8383f7c8e 100644
--- a/drivers/media/platform/mtk-vcodec/vdec/vdec_vp9_if.c
+++ b/drivers/media/platform/mtk-vcodec/vdec/vdec_vp9_if.c
@@ -539,7 +539,7 @@ static bool vp9_wait_dec_end(struct vdec_vp9_inst *inst)
 
 	mtk_vcodec_wait_for_done_ctx(inst->ctx,
 			MTK_INST_IRQ_RECEIVED,
-			WAIT_INTR_TIMEOUT_MS);
+			WAIT_INTR_TIMEOUT_MS, 0);
 
 	if (ctx->irq_status & MTK_VDEC_IRQ_STATUS_DEC_SUCCESS)
 		return true;
diff --git a/drivers/media/platform/mtk-vcodec/venc/venc_h264_if.c b/drivers/media/platform/mtk-vcodec/venc/venc_h264_if.c
index b6a4f2074fa5..9ae1bd8dbc32 100644
--- a/drivers/media/platform/mtk-vcodec/venc/venc_h264_if.c
+++ b/drivers/media/platform/mtk-vcodec/venc/venc_h264_if.c
@@ -335,7 +335,7 @@ static unsigned int h264_enc_wait_venc_done(struct venc_h264_inst *inst)
 	struct mtk_vcodec_ctx *ctx = (struct mtk_vcodec_ctx *)inst->ctx;
 
 	if (!mtk_vcodec_wait_for_done_ctx(ctx, MTK_INST_IRQ_RECEIVED,
-					  WAIT_INTR_TIMEOUT_MS)) {
+					  WAIT_INTR_TIMEOUT_MS, 0)) {
 		irq_status = ctx->irq_status;
 		mtk_vcodec_debug(inst, "irq_status %x <-", irq_status);
 	}
diff --git a/drivers/media/platform/mtk-vcodec/venc/venc_vp8_if.c b/drivers/media/platform/mtk-vcodec/venc/venc_vp8_if.c
index 8267a9c4fd25..f96564277577 100644
--- a/drivers/media/platform/mtk-vcodec/venc/venc_vp8_if.c
+++ b/drivers/media/platform/mtk-vcodec/venc/venc_vp8_if.c
@@ -222,7 +222,7 @@ static unsigned int vp8_enc_wait_venc_done(struct venc_vp8_inst *inst)
 	struct mtk_vcodec_ctx *ctx = (struct mtk_vcodec_ctx *)inst->ctx;
 
 	if (!mtk_vcodec_wait_for_done_ctx(ctx, MTK_INST_IRQ_RECEIVED,
-					  WAIT_INTR_TIMEOUT_MS)) {
+					  WAIT_INTR_TIMEOUT_MS, 0)) {
 		irq_status = ctx->irq_status;
 		mtk_vcodec_debug(inst, "isr return %x", irq_status);
 	}
-- 
2.25.1


^ permalink raw reply	[flat|nested] 41+ messages in thread

* [PATCH v5, 08/15] media: mtk-vcodec: Add msg queue feature for lat and core architecture
  2021-08-11  2:57 [PATCH v5, 00/15] Using component framework to support multi hardware decode Yunfei Dong
                   ` (6 preceding siblings ...)
  2021-08-11  2:57 ` [PATCH v5, 07/15] media: mtk-vcodec: Add irq interface for multi hardware Yunfei Dong
@ 2021-08-11  2:57 ` Yunfei Dong
  2021-08-11  2:57 ` [PATCH v5, 09/15] media: mtk-vcodec: Generalize power and clock on/off interfaces Yunfei Dong
                   ` (7 subsequent siblings)
  15 siblings, 0 replies; 41+ messages in thread
From: Yunfei Dong @ 2021-08-11  2:57 UTC (permalink / raw)
  To: Yunfei Dong, Alexandre Courbot, Hans Verkuil, Tzung-Bi Shih,
	Tiffany Lin, Andrew-CT Chen, Mauro Carvalho Chehab, Rob Herring,
	Matthias Brugger, Tomasz Figa
  Cc: Hsin-Yi Wang, Fritz Koenig, Irui Wang, linux-media, devicetree,
	linux-kernel, linux-arm-kernel, srv_heupstream, linux-mediatek,
	Project_Global_Chrome_Upstream_Group, George Sun

For lat and core architecture, lat thread will send message to core
thread when lat decode done. Core hardware will use the message
from lat to decode, then free message to lat thread when decode done.

Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
---
v5: no changes
---
 drivers/media/platform/mtk-vcodec/Makefile    |   1 +
 .../platform/mtk-vcodec/mtk_vcodec_drv.h      |   5 +
 .../platform/mtk-vcodec/vdec_msg_queue.c      | 258 ++++++++++++++++++
 .../platform/mtk-vcodec/vdec_msg_queue.h      | 151 ++++++++++
 4 files changed, 415 insertions(+)
 create mode 100644 drivers/media/platform/mtk-vcodec/vdec_msg_queue.c
 create mode 100644 drivers/media/platform/mtk-vcodec/vdec_msg_queue.h

diff --git a/drivers/media/platform/mtk-vcodec/Makefile b/drivers/media/platform/mtk-vcodec/Makefile
index edeb3b66e9e9..5000e59da576 100644
--- a/drivers/media/platform/mtk-vcodec/Makefile
+++ b/drivers/media/platform/mtk-vcodec/Makefile
@@ -11,6 +11,7 @@ mtk-vcodec-dec-y := vdec/vdec_h264_if.o \
 		mtk_vcodec_dec_drv.o \
 		vdec_drv_if.o \
 		vdec_vpu_if.o \
+		vdec_msg_queue.o \
 		mtk_vcodec_dec.o \
 		mtk_vcodec_dec_stateful.o \
 		mtk_vcodec_dec_stateless.o \
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
index 08fd43106fc7..4ad0566e715d 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
@@ -15,7 +15,9 @@
 #include <media/v4l2-ioctl.h>
 #include <media/v4l2-mem2mem.h>
 #include <media/videobuf2-core.h>
+
 #include "mtk_vcodec_util.h"
+#include "vdec_msg_queue.h"
 
 #define MTK_VCODEC_DRV_NAME	"mtk_vcodec_drv"
 #define MTK_VCODEC_DEC_NAME	"mtk-vcodec-dec"
@@ -282,6 +284,8 @@ struct vdec_pic_info {
  * @decoded_frame_cnt: number of decoded frames
  * @lock: protect variables accessed by V4L2 threads and worker thread such as
  *	  mtk_video_dec_buf.
+ *
+ * @msg_queue: msg queue used to store lat buffer information.
  */
 struct mtk_vcodec_ctx {
 	enum mtk_instance_type type;
@@ -325,6 +329,7 @@ struct mtk_vcodec_ctx {
 	int decoded_frame_cnt;
 	struct mutex lock;
 
+	struct vdec_msg_queue msg_queue;
 };
 
 enum mtk_chip {
diff --git a/drivers/media/platform/mtk-vcodec/vdec_msg_queue.c b/drivers/media/platform/mtk-vcodec/vdec_msg_queue.c
new file mode 100644
index 000000000000..d66ed98c79a9
--- /dev/null
+++ b/drivers/media/platform/mtk-vcodec/vdec_msg_queue.c
@@ -0,0 +1,258 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2021 MediaTek Inc.
+ * Author: Yunfei Dong <yunfei.dong@mediatek.com>
+ */
+
+#include <linux/freezer.h>
+#include <linux/interrupt.h>
+#include <linux/kthread.h>
+
+#include "mtk_vcodec_dec_pm.h"
+#include "mtk_vcodec_drv.h"
+#include "vdec_msg_queue.h"
+
+#define VDEC_LAT_SLICE_HEADER_SZ    (640 * 1024)
+#define VDEC_ERR_MAP_SZ_AVC         ((8192 / 16) * (4352 / 16) / 8)
+
+/* lat write decoded hardware information to trans buffer,
+ * and core will read the trans buffer to decode again. The
+ * trans buffer size of FHD and 4K bitstreams are different.
+ */
+static int vde_msg_queue_get_trans_size(int width, int height)
+{
+	if (width > 1920 || height > 1088)
+		return (30 * 1024 * 1024);
+	else
+		return 6 * 1024 * 1024;
+}
+
+void vdec_msg_queue_init_ctx(struct vdec_msg_queue_ctx *ctx,
+	int hardware_index)
+{
+	init_waitqueue_head(&ctx->ready_to_use);
+	INIT_LIST_HEAD(&ctx->ready_queue);
+	spin_lock_init(&ctx->ready_lock);
+	ctx->ready_num = 0;
+	ctx->hardware_index = hardware_index;
+}
+
+int vdec_msg_queue_init(
+	struct vdec_msg_queue *msg_queue,
+	struct mtk_vcodec_ctx *ctx,
+	core_decode_cb_t core_decode,
+	int private_size)
+{
+	struct vdec_lat_buf *lat_buf;
+	int i, err;
+
+	/* already init msg queue */
+	if (msg_queue->wdma_addr.size)
+		return 0;
+
+	vdec_msg_queue_init_ctx(&msg_queue->lat_ctx, MTK_VDEC_LAT0);
+	msg_queue->wdma_addr.size = vde_msg_queue_get_trans_size(
+		ctx->picinfo.buf_w, ctx->picinfo.buf_h);
+
+	err = mtk_vcodec_mem_alloc(ctx, &msg_queue->wdma_addr);
+	if (err) {
+		mtk_v4l2_err("failed to allocate wdma_addr buf");
+		return -ENOMEM;
+	}
+	msg_queue->wdma_rptr_addr = msg_queue->wdma_addr.dma_addr;
+	msg_queue->wdma_wptr_addr = msg_queue->wdma_addr.dma_addr;
+
+	for (i = 0; i < NUM_BUFFER_COUNT; i++) {
+		lat_buf = &msg_queue->lat_buf[i];
+
+		lat_buf->wdma_err_addr.size = VDEC_ERR_MAP_SZ_AVC;
+		err = mtk_vcodec_mem_alloc(ctx, &lat_buf->wdma_err_addr);
+		if (err) {
+			mtk_v4l2_err("failed to allocate wdma_err_addr buf[%d]", i);
+			goto mem_alloc_err;
+		}
+
+		lat_buf->slice_bc_addr.size = VDEC_LAT_SLICE_HEADER_SZ;
+		err = mtk_vcodec_mem_alloc(ctx, &lat_buf->slice_bc_addr);
+		if (err) {
+			mtk_v4l2_err("failed to allocate wdma_addr buf[%d]", i);
+			goto mem_alloc_err;
+		}
+
+		lat_buf->private_data = kzalloc(private_size, GFP_KERNEL);
+		if (!lat_buf->private_data) {
+			mtk_v4l2_err("failed to allocate private_data[%d]", i);
+			goto mem_alloc_err;
+		}
+
+		lat_buf->ctx = ctx;
+		lat_buf->core_decode = core_decode;
+		vdec_msg_queue_qbuf(&msg_queue->lat_ctx, lat_buf);
+	}
+	return 0;
+
+mem_alloc_err:
+	vdec_msg_queue_deinit(msg_queue, ctx);
+	return -ENOMEM;
+}
+
+static struct list_head *vdec_get_buf_list(int hardware_index,
+	struct vdec_lat_buf *buf)
+{
+	switch (hardware_index) {
+	case MTK_VDEC_CORE:
+		return &buf->core_list;
+	case MTK_VDEC_LAT0:
+		return &buf->lat_list;
+	default:
+		return NULL;
+	}
+}
+
+void vdec_msg_queue_qbuf(struct vdec_msg_queue_ctx *ctx,
+	struct vdec_lat_buf *buf)
+{
+	struct list_head *head;
+
+	head = vdec_get_buf_list(ctx->hardware_index, buf);
+	if (!head) {
+		mtk_v4l2_err("fail to qbuf: %d",ctx->hardware_index);
+		return;
+	}
+
+	spin_lock(&ctx->ready_lock);
+	list_add_tail(head, &ctx->ready_queue);
+	ctx->ready_num++;
+
+	wake_up_all(&ctx->ready_to_use);
+
+	mtk_v4l2_debug(3, "enqueue buf type: %d addr: 0x%p num: %d",
+		ctx->hardware_index, buf, ctx->ready_num);
+	spin_unlock(&ctx->ready_lock);
+}
+
+static bool vdec_msg_queue_wait_event(struct vdec_msg_queue_ctx *ctx)
+{
+	long timeout_jiff;
+	int ret;
+
+	if (ctx->hardware_index == MTK_VDEC_CORE) {
+		ret = wait_event_freezable(ctx->ready_to_use,
+			!list_empty(&ctx->ready_queue));
+		if (ret)
+			return false;
+	} else {
+		timeout_jiff = msecs_to_jiffies(1500);
+		ret = wait_event_timeout(ctx->ready_to_use,
+			!list_empty(&ctx->ready_queue), timeout_jiff);
+		if (!ret)
+			return false;
+	}
+
+	return true;
+}
+
+struct vdec_lat_buf *vdec_msg_queue_dqbuf(struct vdec_msg_queue_ctx *ctx)
+{
+	struct vdec_lat_buf *buf;
+	struct list_head *head;
+	int ret;
+
+	spin_lock(&ctx->ready_lock);
+	if (list_empty(&ctx->ready_queue)) {
+		mtk_v4l2_debug(3, "queue is NULL, type:%d num: %d",
+			ctx->hardware_index, ctx->ready_num);
+		spin_unlock(&ctx->ready_lock);
+		ret = vdec_msg_queue_wait_event(ctx);
+		if (!ret)
+			return NULL;
+		spin_lock(&ctx->ready_lock);
+	}
+
+	if (ctx->hardware_index == MTK_VDEC_CORE)
+		buf = list_first_entry(&ctx->ready_queue,
+			struct vdec_lat_buf, core_list);
+	else
+		buf = list_first_entry(&ctx->ready_queue,
+			struct vdec_lat_buf, lat_list);
+
+	head = vdec_get_buf_list(ctx->hardware_index, buf);
+	if (!head) {
+		mtk_v4l2_err("fail to dqbuf: %d",ctx->hardware_index);
+		return NULL;
+	}
+	list_del(head);
+
+	ctx->ready_num--;
+	mtk_v4l2_debug(3, "dqueue buf type:%d addr: 0x%p num: %d",
+		ctx->hardware_index, buf, ctx->ready_num);
+	spin_unlock(&ctx->ready_lock);
+
+	return buf;
+}
+
+void vdec_msg_queue_update_ube_rptr(struct vdec_msg_queue *msg_queue,
+	uint64_t ube_rptr)
+{
+	spin_lock(&msg_queue->lat_ctx.ready_lock);
+	msg_queue->wdma_rptr_addr = ube_rptr;
+	mtk_v4l2_debug(3, "update ube rprt (0x%llx)", ube_rptr);
+	spin_unlock(&msg_queue->lat_ctx.ready_lock);
+}
+
+void vdec_msg_queue_update_ube_wptr(struct vdec_msg_queue *msg_queue,
+	uint64_t ube_wptr)
+{
+	spin_lock(&msg_queue->lat_ctx.ready_lock);
+	msg_queue->wdma_wptr_addr = ube_wptr;
+	mtk_v4l2_debug(3, "update ube wprt: (0x%llx 0x%llx) offset: 0x%llx",
+		msg_queue->wdma_rptr_addr, msg_queue->wdma_wptr_addr, ube_wptr);
+	spin_unlock(&msg_queue->lat_ctx.ready_lock);
+}
+
+bool vdec_msg_queue_wait_lat_buf_full(struct vdec_msg_queue *msg_queue)
+{
+	long timeout_jiff;
+	int ret;
+
+	timeout_jiff = msecs_to_jiffies(1000 * (NUM_BUFFER_COUNT + 2));
+
+	ret = wait_event_timeout(msg_queue->lat_ctx.ready_to_use,
+		msg_queue->lat_ctx.ready_num == NUM_BUFFER_COUNT,
+		timeout_jiff);
+	if (ret) {
+		mtk_v4l2_debug(3, "success to get lat buf: %d",
+			msg_queue->lat_ctx.ready_num);
+		return true;
+	}
+	mtk_v4l2_err("failed with lat buf isn't full: %d",
+		msg_queue->lat_ctx.ready_num);
+	return false;
+}
+
+void vdec_msg_queue_deinit(
+	struct vdec_msg_queue *msg_queue,
+	struct mtk_vcodec_ctx *ctx)
+{
+	struct vdec_lat_buf *lat_buf;
+	struct mtk_vcodec_mem *mem;
+	int i;
+
+	mem = &msg_queue->wdma_addr;
+	if (mem->va)
+		mtk_vcodec_mem_free(ctx, mem);
+	for (i = 0; i < NUM_BUFFER_COUNT; i++) {
+		lat_buf = &msg_queue->lat_buf[i];
+
+		mem = &lat_buf->wdma_err_addr;
+		if (mem->va)
+			mtk_vcodec_mem_free(ctx, mem);
+
+		mem = &lat_buf->slice_bc_addr;
+		if (mem->va)
+			mtk_vcodec_mem_free(ctx, mem);
+
+		if (lat_buf->private_data)
+			kfree(lat_buf->private_data);
+	}
+}
diff --git a/drivers/media/platform/mtk-vcodec/vdec_msg_queue.h b/drivers/media/platform/mtk-vcodec/vdec_msg_queue.h
new file mode 100644
index 000000000000..1905ce713592
--- /dev/null
+++ b/drivers/media/platform/mtk-vcodec/vdec_msg_queue.h
@@ -0,0 +1,151 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Copyright (c) 2021 MediaTek Inc.
+ * Author: Yunfei Dong <yunfei.dong@mediatek.com>
+ */
+
+#ifndef _VDEC_MSG_QUEUE_H_
+#define _VDEC_MSG_QUEUE_H_
+
+#include <linux/sched.h>
+#include <linux/semaphore.h>
+#include <linux/slab.h>
+#include <media/videobuf2-v4l2.h>
+
+#include "mtk_vcodec_util.h"
+
+#define NUM_BUFFER_COUNT 3
+
+struct vdec_lat_buf;
+struct mtk_vcodec_ctx;
+struct mtk_vcodec_dev;
+typedef int (*core_decode_cb_t)(struct vdec_lat_buf *lat_buf);
+
+/**
+ * struct vdec_msg_queue_ctx - represents a queue for buffers ready to be
+ *	                           processed
+ * @ready_used: ready used queue used to signalize when get a job queue
+ * @ready_queue: list of ready lat buffer queues
+ * @ready_lock: spin lock to protect the lat buffer usage
+ * @ready_num: number of buffers ready to be processed
+ * @hardware_index: hardware id that this queue is used for
+ */
+struct vdec_msg_queue_ctx {
+	wait_queue_head_t ready_to_use;
+	struct list_head ready_queue;
+	spinlock_t ready_lock;
+	int ready_num;
+	int hardware_index;
+};
+
+/**
+ * struct vdec_lat_buf - lat buffer message used to store lat
+ *                       info for core decode
+ * @wdma_err_addr: wdma error address used for lat hardware
+ * @slice_bc_addr: slice bc address used for lat hardware
+ * @ts_info: need to set timestamp from output to capture
+ *
+ * @private_data: shared information used to lat and core hardware
+ * @ctx: mtk vcodec context information
+ * @core_decode: different codec use different decode callback function
+ * @lat_list: add lat buffer to lat head list
+ * @core_list: add lat buffer to core head list
+ */
+struct vdec_lat_buf {
+	struct mtk_vcodec_mem wdma_err_addr;
+	struct mtk_vcodec_mem slice_bc_addr;
+	struct vb2_v4l2_buffer ts_info;
+
+	void *private_data;
+	struct mtk_vcodec_ctx *ctx;
+	core_decode_cb_t core_decode;
+	struct list_head lat_list;
+	struct list_head core_list;
+};
+
+/**
+ * struct vdec_msg_queue - used to store lat buffer message
+ * @lat_buf: lat buffer used to store lat buffer information
+ * @wdma_addr: wdma address used for ube
+ * @wdma_rptr_addr: ube read point
+ * @wdma_wptr_addr: ube write point
+ * @lat_ctx: used to store lat buffer list
+ */
+struct vdec_msg_queue {
+	struct vdec_lat_buf lat_buf[NUM_BUFFER_COUNT];
+
+	struct mtk_vcodec_mem wdma_addr;
+	uint64_t wdma_rptr_addr;
+	uint64_t wdma_wptr_addr;
+
+	struct vdec_msg_queue_ctx lat_ctx;
+};
+
+/**
+ * vdec_msg_queue_init - init lat buffer information.
+ * @msg_queue: used to store the lat buffer information
+ * @ctx: v4l2 ctx
+ * @core_decode: core decode callback for each codec
+ * @private_size: the private data size used to share with core
+ */
+int vdec_msg_queue_init(
+	struct vdec_msg_queue *msg_queue,
+	struct mtk_vcodec_ctx *ctx,
+	core_decode_cb_t core_decode,
+	int private_size);
+
+/**
+ * vdec_msg_queue_init_ctx - used to init msg queue context information.
+ * @ctx: message queue context
+ * @hardware_index: hardware index
+ */
+void vdec_msg_queue_init_ctx(struct vdec_msg_queue_ctx *ctx,
+	int hardware_index);
+
+/**
+ * vdec_msg_queue_qbuf - enqueue lat buffer to queue list.
+ * @ctx: message queue context
+ * @buf: current lat buffer
+ */
+void vdec_msg_queue_qbuf(struct vdec_msg_queue_ctx *ctx,
+	struct vdec_lat_buf *buf);
+
+/**
+ * vdec_msg_queue_dqbuf - dequeue lat buffer from queue list.
+ * @ctx: message queue context
+ */
+struct vdec_lat_buf *vdec_msg_queue_dqbuf(struct vdec_msg_queue_ctx *ctx);
+
+/**
+ * vdec_msg_queue_update_ube_rptr - used to updata the ube read point.
+ * @msg_queue: used to store the lat buffer information
+ * @ube_rptr: current ube read point
+ */
+void vdec_msg_queue_update_ube_rptr(struct vdec_msg_queue *msg_queue,
+	uint64_t ube_rptr);
+
+/**
+ * vdec_msg_queue_update_ube_wptr - used to updata the ube write point.
+ * @msg_queue: used to store the lat buffer information
+ * @ube_wptr: current ube write point
+ */
+void vdec_msg_queue_update_ube_wptr(struct vdec_msg_queue *msg_queue,
+	uint64_t ube_wptr);
+
+/**
+ * vdec_msg_queue_wait_lat_buf_full - used to check whether all lat buffer
+ *                                    in lat list.
+ * @msg_queue: used to store the lat buffer information
+ */
+bool vdec_msg_queue_wait_lat_buf_full(struct vdec_msg_queue *msg_queue);
+
+/**
+ * vdec_msg_queue_deinit - deinit lat buffer information.
+ * @msg_queue: used to store the lat buffer information
+ * @ctx: v4l2 ctx
+ */
+void vdec_msg_queue_deinit(
+	struct vdec_msg_queue *msg_queue,
+	struct mtk_vcodec_ctx *ctx);
+
+#endif
-- 
2.25.1


^ permalink raw reply	[flat|nested] 41+ messages in thread

* [PATCH v5, 09/15] media: mtk-vcodec: Generalize power and clock on/off interfaces
  2021-08-11  2:57 [PATCH v5, 00/15] Using component framework to support multi hardware decode Yunfei Dong
                   ` (7 preceding siblings ...)
  2021-08-11  2:57 ` [PATCH v5, 08/15] media: mtk-vcodec: Add msg queue feature for lat and core architecture Yunfei Dong
@ 2021-08-11  2:57 ` Yunfei Dong
  2021-08-11  2:57 ` [PATCH v5, 10/15] media: mtk-vcodec: Add new interface to lock different hardware Yunfei Dong
                   ` (6 subsequent siblings)
  15 siblings, 0 replies; 41+ messages in thread
From: Yunfei Dong @ 2021-08-11  2:57 UTC (permalink / raw)
  To: Yunfei Dong, Alexandre Courbot, Hans Verkuil, Tzung-Bi Shih,
	Tiffany Lin, Andrew-CT Chen, Mauro Carvalho Chehab, Rob Herring,
	Matthias Brugger, Tomasz Figa
  Cc: Hsin-Yi Wang, Fritz Koenig, Irui Wang, linux-media, devicetree,
	linux-kernel, linux-arm-kernel, srv_heupstream, linux-mediatek,
	Project_Global_Chrome_Upstream_Group, George Sun

Generalizes power and clock on/off interfaces to support different hardware.

Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
---
v5: Fix build error.
---
 .../platform/mtk-vcodec/mtk_vcodec_dec_drv.c  |  6 +-
 .../platform/mtk-vcodec/mtk_vcodec_dec_hw.c   |  2 +-
 .../platform/mtk-vcodec/mtk_vcodec_dec_hw.h   |  4 +
 .../platform/mtk-vcodec/mtk_vcodec_dec_pm.c   | 76 ++++++++++++++--
 .../platform/mtk-vcodec/mtk_vcodec_dec_pm.h   |  8 +-
 .../platform/mtk-vcodec/mtk_vcodec_drv.h      |  2 +
 .../platform/mtk-vcodec/mtk_vcodec_util.c     | 87 ++++++++++++++++---
 .../platform/mtk-vcodec/mtk_vcodec_util.h     |  8 +-
 .../media/platform/mtk-vcodec/vdec_drv_if.c   | 21 ++---
 9 files changed, 174 insertions(+), 40 deletions(-)

diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
index f096ad1c01ac..109f7de126a1 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
@@ -126,7 +126,7 @@ static irqreturn_t mtk_vcodec_dec_irq_handler(int irq, void *priv)
 	void __iomem *vdec_misc_addr = dev->reg_base[VDEC_MISC] +
 					VDEC_IRQ_CFG_REG;
 
-	ctx = mtk_vcodec_get_curr_ctx(dev);
+	ctx = mtk_vcodec_get_curr_ctx(dev, MTK_VDEC_CORE);
 
 	/* check if HW active or not */
 	cg_status = readl(dev->reg_base[0]);
@@ -286,7 +286,7 @@ static int fops_vcodec_open(struct file *file)
 	mtk_vcodec_dec_set_default_params(ctx);
 
 	if (v4l2_fh_is_singular(&ctx->fh)) {
-		ret = mtk_vcodec_dec_pw_on(&dev->pm);
+		ret = mtk_vcodec_dec_pw_on(dev, MTK_VDEC_LAT0);
 		if (ret < 0)
 			goto err_load_fw;
 		/*
@@ -347,7 +347,7 @@ static int fops_vcodec_release(struct file *file)
 	mtk_vcodec_dec_release(ctx);
 
 	if (v4l2_fh_is_singular(&ctx->fh))
-		mtk_vcodec_dec_pw_off(&dev->pm);
+		mtk_vcodec_dec_pw_off(dev, MTK_VDEC_LAT0);
 	v4l2_fh_del(&ctx->fh);
 	v4l2_fh_exit(&ctx->fh);
 	v4l2_ctrl_handler_free(&ctx->ctrl_hdl);
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c
index 7a31afd294ba..714df68ffb19 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.c
@@ -68,7 +68,7 @@ static irqreturn_t mtk_vdec_comp_irq_handler(int irq, void *priv)
 	void __iomem *vdec_misc_addr = dev->reg_base[VDEC_COMP_MISC] +
 					VDEC_IRQ_CFG_REG;
 
-	ctx = mtk_vcodec_get_curr_ctx(dev->master_dev);
+	ctx = mtk_vcodec_get_curr_ctx(dev->master_dev, dev->comp_idx);
 
 	/* check if HW active or not */
 	cg_status = readl(dev->reg_base[VDEC_COMP_SYS]);
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.h
index 8d6e818a3474..0a4c2e6f5df2 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.h
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_hw.h
@@ -32,6 +32,8 @@ enum mtk_comp_hw_reg_idx {
  * @master_dev: master device
  * @reg_base: Mapped address of MTK Vcodec registers.
  *
+ * @curr_ctx: The context that is waiting for codec hardware
+ *
  * @dec_irq: decoder irq resource
  * @pm: power management control
  * @comp_idx: component index
@@ -41,6 +43,8 @@ struct mtk_vdec_comp_dev {
 	struct mtk_vcodec_dev *master_dev;
 	void __iomem *reg_base[VDEC_COMP_MAX];
 
+	struct mtk_vcodec_ctx *curr_ctx;
+
 	int dec_irq;
 	struct mtk_vcodec_pm pm;
 	int comp_idx;
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c
index 20bd157a855c..183d4c4e36f0 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.c
@@ -5,11 +5,13 @@
  */
 
 #include <linux/clk.h>
+#include <linux/interrupt.h>
 #include <linux/of_address.h>
 #include <linux/of_platform.h>
 #include <linux/pm_runtime.h>
 #include <soc/mediatek/smi.h>
 
+#include "mtk_vcodec_dec_hw.h"
 #include "mtk_vcodec_dec_pm.h"
 #include "mtk_vcodec_util.h"
 
@@ -84,10 +86,23 @@ void mtk_vcodec_release_dec_pm(struct mtk_vcodec_pm *pm)
 	put_device(pm->larbvdec);
 }
 
-int mtk_vcodec_dec_pw_on(struct mtk_vcodec_pm *pm)
+int mtk_vcodec_dec_pw_on(struct mtk_vcodec_dev *vdec_dev, int comp_idx)
 {
+	struct mtk_vdec_comp_dev *comp_dev;
+	struct mtk_vcodec_pm *pm;
 	int ret;
 
+	if (vdec_dev->vdec_pdata->is_comp_supported) {
+		comp_dev = mtk_vcodec_get_hw_dev(vdec_dev, comp_idx);
+		if (!comp_dev) {
+			mtk_v4l2_err("Failed to get hw dev\n");
+			return -EINVAL;
+		}
+		pm = &comp_dev->pm;
+	} else {
+		pm = &vdec_dev->pm;
+	}
+
 	ret = pm_runtime_resume_and_get(pm->dev);
 	if (ret)
 		mtk_v4l2_err("pm_runtime_resume_and_get fail %d", ret);
@@ -95,20 +110,49 @@ int mtk_vcodec_dec_pw_on(struct mtk_vcodec_pm *pm)
 	return ret;
 }
 
-void mtk_vcodec_dec_pw_off(struct mtk_vcodec_pm *pm)
+void mtk_vcodec_dec_pw_off(struct mtk_vcodec_dev *vdec_dev, int comp_idx)
 {
+	struct mtk_vdec_comp_dev *comp_dev;
+	struct mtk_vcodec_pm *pm;
 	int ret;
 
+	if (vdec_dev->vdec_pdata->is_comp_supported) {
+		comp_dev = mtk_vcodec_get_hw_dev(vdec_dev, comp_idx);
+		if (!comp_dev) {
+			mtk_v4l2_err("Failed to get hw dev\n");
+			return;
+		}
+		pm = &comp_dev->pm;
+	} else {
+		pm = &vdec_dev->pm;
+	}
+
 	ret = pm_runtime_put_sync(pm->dev);
 	if (ret)
 		mtk_v4l2_err("pm_runtime_put_sync fail %d", ret);
 }
 
-void mtk_vcodec_dec_clock_on(struct mtk_vcodec_pm *pm)
+void mtk_vcodec_dec_clock_on(struct mtk_vcodec_dev *vdec_dev, int comp_idx)
 {
-	struct mtk_vcodec_clk *dec_clk = &pm->vdec_clk;
-	int ret, i = 0;
+	struct mtk_vdec_comp_dev *comp_dev;
+	struct mtk_vcodec_pm *pm;
+	struct mtk_vcodec_clk *dec_clk;
+	int ret, i;
+
+	if (vdec_dev->vdec_pdata->is_comp_supported) {
+		comp_dev = mtk_vcodec_get_hw_dev(vdec_dev, comp_idx);
+		if (!comp_dev) {
+			mtk_v4l2_err("Failed to get hw dev\n");
+			return;
+		}
+		pm = &comp_dev->pm;
+		enable_irq(comp_dev->dec_irq);
+	} else {
+		pm = &vdec_dev->pm;
+		enable_irq(vdec_dev->dec_irq);
+	}
 
+	dec_clk = &pm->vdec_clk;
 	for (i = 0; i < dec_clk->clk_num; i++) {
 		ret = clk_prepare_enable(dec_clk->clk_info[i].vcodec_clk);
 		if (ret) {
@@ -130,11 +174,27 @@ void mtk_vcodec_dec_clock_on(struct mtk_vcodec_pm *pm)
 		clk_disable_unprepare(dec_clk->clk_info[i].vcodec_clk);
 }
 
-void mtk_vcodec_dec_clock_off(struct mtk_vcodec_pm *pm)
+void mtk_vcodec_dec_clock_off(struct mtk_vcodec_dev *vdec_dev, int comp_idx)
 {
-	struct mtk_vcodec_clk *dec_clk = &pm->vdec_clk;
-	int i = 0;
+	struct mtk_vdec_comp_dev *comp_dev;
+	struct mtk_vcodec_pm *pm;
+	struct mtk_vcodec_clk *dec_clk;
+	int i;
 
+	if (vdec_dev->vdec_pdata->is_comp_supported) {
+		comp_dev = mtk_vcodec_get_hw_dev(vdec_dev, comp_idx);
+		if (!comp_dev) {
+			mtk_v4l2_err("Failed to get hw dev\n");
+			return;
+		}
+		pm = &comp_dev->pm;
+		disable_irq(comp_dev->dec_irq);
+	} else {
+		pm = &vdec_dev->pm;
+		disable_irq(vdec_dev->dec_irq);
+	}
+
+	dec_clk = &pm->vdec_clk;
 	mtk_smi_larb_put(pm->larbvdec);
 	for (i = dec_clk->clk_num - 1; i >= 0; i--)
 		clk_disable_unprepare(dec_clk->clk_info[i].vcodec_clk);
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.h
index a3df6aef6cb9..698750572b57 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.h
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_pm.h
@@ -13,9 +13,9 @@ int mtk_vcodec_init_dec_pm(struct platform_device *pdev,
 	struct mtk_vcodec_pm *pm);
 void mtk_vcodec_release_dec_pm(struct mtk_vcodec_pm *pm);
 
-int mtk_vcodec_dec_pw_on(struct mtk_vcodec_pm *pm);
-void mtk_vcodec_dec_pw_off(struct mtk_vcodec_pm *pm);
-void mtk_vcodec_dec_clock_on(struct mtk_vcodec_pm *pm);
-void mtk_vcodec_dec_clock_off(struct mtk_vcodec_pm *pm);
+int mtk_vcodec_dec_pw_on(struct mtk_vcodec_dev *vdec_dev, int comp_idx);
+void mtk_vcodec_dec_pw_off(struct mtk_vcodec_dev *vdec_dev, int comp_idx);
+void mtk_vcodec_dec_clock_on(struct mtk_vcodec_dev *vdec_dev, int comp_idx);
+void mtk_vcodec_dec_clock_off(struct mtk_vcodec_dev *vdec_dev, int comp_idx);
 
 #endif /* _MTK_VCODEC_DEC_PM_H_ */
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
index 4ad0566e715d..a8242389ad24 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
@@ -284,6 +284,7 @@ struct vdec_pic_info {
  * @decoded_frame_cnt: number of decoded frames
  * @lock: protect variables accessed by V4L2 threads and worker thread such as
  *	  mtk_video_dec_buf.
+ * @hw_id: hardware index used to identify different hardware.
  *
  * @msg_queue: msg queue used to store lat buffer information.
  */
@@ -328,6 +329,7 @@ struct mtk_vcodec_ctx {
 
 	int decoded_frame_cnt;
 	struct mutex lock;
+	int hw_id;
 
 	struct vdec_msg_queue msg_queue;
 };
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_util.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_util.c
index ac5973b6735f..511b75e49fe7 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_util.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_util.c
@@ -6,7 +6,10 @@
 */
 
 #include <linux/module.h>
+#include <linux/of.h>
+#include <linux/of_device.h>
 
+#include "mtk_vcodec_dec_hw.h"
 #include "mtk_vcodec_drv.h"
 #include "mtk_vcodec_util.h"
 
@@ -81,25 +84,87 @@ void mtk_vcodec_mem_free(struct mtk_vcodec_ctx *data,
 }
 EXPORT_SYMBOL(mtk_vcodec_mem_free);
 
-void mtk_vcodec_set_curr_ctx(struct mtk_vcodec_dev *dev,
-	struct mtk_vcodec_ctx *ctx)
+void *mtk_vcodec_get_hw_dev(struct mtk_vcodec_dev *dev, int comp_idx)
 {
-	unsigned long flags;
+	struct platform_device *hw_pdev;
+	struct device_node *node;
+	struct mtk_vdec_comp_dev *master_dev;
+
+	if (comp_idx >= MTK_VDEC_HW_MAX || comp_idx < 0) {
+		mtk_v4l2_err("Comp idx is out of range:%d", comp_idx);
+		return NULL;
+	}
+
+	if (dev->comp_dev[comp_idx])
+		return dev->comp_dev[comp_idx];
+
+	node = dev->component_node[comp_idx];
+	if (!node) {
+		mtk_v4l2_err("Get lat node fail:%d", comp_idx);
+		return NULL;
+	}
+
+	hw_pdev = of_find_device_by_node(node);
+	of_node_put(node);
+
+	if (WARN_ON(!hw_pdev)) {
+		mtk_v4l2_err("Get hw id(%d) node fail", comp_idx);
+		return NULL;
+	}
+
+	master_dev = platform_get_drvdata(hw_pdev);
+	if (!master_dev) {
+		mtk_v4l2_err("Get hw id(%d) pdev fail", comp_idx);
+		return NULL;
+	}
 
-	spin_lock_irqsave(&dev->irqlock, flags);
-	dev->curr_ctx = ctx;
-	spin_unlock_irqrestore(&dev->irqlock, flags);
+	dev->comp_dev[master_dev->comp_idx] = master_dev;
+	return master_dev;
+}
+EXPORT_SYMBOL(mtk_vcodec_get_hw_dev);
+
+void mtk_vcodec_set_curr_ctx(struct mtk_vcodec_dev *vdec_dev,
+	struct mtk_vcodec_ctx *ctx, int comp_idx)
+{
+	unsigned long flags;
+	struct mtk_vdec_comp_dev *comp_dev;
+
+	spin_lock_irqsave(&vdec_dev->irqlock, flags);
+	if (vdec_dev->vdec_pdata->is_comp_supported) {
+		comp_dev = mtk_vcodec_get_hw_dev(vdec_dev, comp_idx);
+		if (!comp_dev) {
+			mtk_v4l2_err("Failed to get hw dev");
+			spin_unlock_irqrestore(&vdec_dev->irqlock, flags);
+			return;
+		}
+		comp_dev->curr_ctx = ctx;
+	} else {
+		vdec_dev->curr_ctx = ctx;
+	}
+	spin_unlock_irqrestore(&vdec_dev->irqlock, flags);
 }
 EXPORT_SYMBOL(mtk_vcodec_set_curr_ctx);
 
-struct mtk_vcodec_ctx *mtk_vcodec_get_curr_ctx(struct mtk_vcodec_dev *dev)
+struct mtk_vcodec_ctx *mtk_vcodec_get_curr_ctx(struct mtk_vcodec_dev *vdec_dev,
+	unsigned int comp_idx)
 {
 	unsigned long flags;
 	struct mtk_vcodec_ctx *ctx;
-
-	spin_lock_irqsave(&dev->irqlock, flags);
-	ctx = dev->curr_ctx;
-	spin_unlock_irqrestore(&dev->irqlock, flags);
+	struct mtk_vdec_comp_dev *comp_dev;
+
+	spin_lock_irqsave(&vdec_dev->irqlock, flags);
+	if (vdec_dev->vdec_pdata->is_comp_supported) {
+		comp_dev = mtk_vcodec_get_hw_dev(vdec_dev, comp_idx);
+		if (!comp_dev) {
+			mtk_v4l2_err("Failed to get hw dev");
+			spin_unlock_irqrestore(&vdec_dev->irqlock, flags);
+			return NULL;
+		}
+		ctx = comp_dev->curr_ctx;
+	} else {
+		ctx = vdec_dev->curr_ctx;
+	}
+	spin_unlock_irqrestore(&vdec_dev->irqlock, flags);
 	return ctx;
 }
 EXPORT_SYMBOL(mtk_vcodec_get_curr_ctx);
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_util.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_util.h
index b999d7b84ed1..4cb0fc60c94f 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_util.h
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_util.h
@@ -79,8 +79,10 @@ int mtk_vcodec_mem_alloc(struct mtk_vcodec_ctx *data,
 				struct mtk_vcodec_mem *mem);
 void mtk_vcodec_mem_free(struct mtk_vcodec_ctx *data,
 				struct mtk_vcodec_mem *mem);
-void mtk_vcodec_set_curr_ctx(struct mtk_vcodec_dev *dev,
-	struct mtk_vcodec_ctx *ctx);
-struct mtk_vcodec_ctx *mtk_vcodec_get_curr_ctx(struct mtk_vcodec_dev *dev);
+void mtk_vcodec_set_curr_ctx(struct mtk_vcodec_dev *vdec_dev,
+				struct mtk_vcodec_ctx *ctx, int comp_idx);
+struct mtk_vcodec_ctx *mtk_vcodec_get_curr_ctx(struct mtk_vcodec_dev *vdec_dev,
+	unsigned int comp_idx);
+void *mtk_vcodec_get_hw_dev(struct mtk_vcodec_dev *dev, int comp_idx);
 
 #endif /* _MTK_VCODEC_UTIL_H_ */
diff --git a/drivers/media/platform/mtk-vcodec/vdec_drv_if.c b/drivers/media/platform/mtk-vcodec/vdec_drv_if.c
index 42008243ceac..05a5b240e906 100644
--- a/drivers/media/platform/mtk-vcodec/vdec_drv_if.c
+++ b/drivers/media/platform/mtk-vcodec/vdec_drv_if.c
@@ -24,21 +24,24 @@ int vdec_if_init(struct mtk_vcodec_ctx *ctx, unsigned int fourcc)
 		break;
 	case V4L2_PIX_FMT_H264:
 		ctx->dec_if = &vdec_h264_if;
+		ctx->hw_id = MTK_VDEC_CORE;
 		break;
 	case V4L2_PIX_FMT_VP8:
 		ctx->dec_if = &vdec_vp8_if;
+		ctx->hw_id = MTK_VDEC_CORE;
 		break;
 	case V4L2_PIX_FMT_VP9:
 		ctx->dec_if = &vdec_vp9_if;
+		ctx->hw_id = MTK_VDEC_CORE;
 		break;
 	default:
 		return -EINVAL;
 	}
 
 	mtk_vdec_lock(ctx);
-	mtk_vcodec_dec_clock_on(&ctx->dev->pm);
+	mtk_vcodec_dec_clock_on(ctx->dev, ctx->hw_id);
 	ret = ctx->dec_if->init(ctx);
-	mtk_vcodec_dec_clock_off(&ctx->dev->pm);
+	mtk_vcodec_dec_clock_off(ctx->dev, ctx->hw_id);
 	mtk_vdec_unlock(ctx);
 
 	return ret;
@@ -69,13 +72,11 @@ int vdec_if_decode(struct mtk_vcodec_ctx *ctx, struct mtk_vcodec_mem *bs,
 
 	mtk_vdec_lock(ctx);
 
-	mtk_vcodec_set_curr_ctx(ctx->dev, ctx);
-	mtk_vcodec_dec_clock_on(&ctx->dev->pm);
-	enable_irq(ctx->dev->dec_irq);
+	mtk_vcodec_set_curr_ctx(ctx->dev, ctx, ctx->hw_id);
+	mtk_vcodec_dec_clock_on(ctx->dev, ctx->hw_id);
 	ret = ctx->dec_if->decode(ctx->drv_handle, bs, fb, res_chg);
-	disable_irq(ctx->dev->dec_irq);
-	mtk_vcodec_dec_clock_off(&ctx->dev->pm);
-	mtk_vcodec_set_curr_ctx(ctx->dev, NULL);
+	mtk_vcodec_dec_clock_off(ctx->dev, ctx->hw_id);
+	mtk_vcodec_set_curr_ctx(ctx->dev, NULL, ctx->hw_id);
 
 	mtk_vdec_unlock(ctx);
 
@@ -103,9 +104,9 @@ void vdec_if_deinit(struct mtk_vcodec_ctx *ctx)
 		return;
 
 	mtk_vdec_lock(ctx);
-	mtk_vcodec_dec_clock_on(&ctx->dev->pm);
+	mtk_vcodec_dec_clock_on(ctx->dev, ctx->hw_id);
 	ctx->dec_if->deinit(ctx->drv_handle);
-	mtk_vcodec_dec_clock_off(&ctx->dev->pm);
+	mtk_vcodec_dec_clock_off(ctx->dev, ctx->hw_id);
 	mtk_vdec_unlock(ctx);
 
 	ctx->drv_handle = NULL;
-- 
2.25.1


^ permalink raw reply	[flat|nested] 41+ messages in thread

* [PATCH v5, 10/15] media: mtk-vcodec: Add new interface to lock different hardware
  2021-08-11  2:57 [PATCH v5, 00/15] Using component framework to support multi hardware decode Yunfei Dong
                   ` (8 preceding siblings ...)
  2021-08-11  2:57 ` [PATCH v5, 09/15] media: mtk-vcodec: Generalize power and clock on/off interfaces Yunfei Dong
@ 2021-08-11  2:57 ` Yunfei Dong
  2021-08-11  2:57 ` [PATCH v5, 11/15] media: mtk-vcodec: Add core thread Yunfei Dong
                   ` (5 subsequent siblings)
  15 siblings, 0 replies; 41+ messages in thread
From: Yunfei Dong @ 2021-08-11  2:57 UTC (permalink / raw)
  To: Yunfei Dong, Alexandre Courbot, Hans Verkuil, Tzung-Bi Shih,
	Tiffany Lin, Andrew-CT Chen, Mauro Carvalho Chehab, Rob Herring,
	Matthias Brugger, Tomasz Figa
  Cc: Hsin-Yi Wang, Fritz Koenig, Irui Wang, linux-media, devicetree,
	linux-kernel, linux-arm-kernel, srv_heupstream, linux-mediatek,
	Project_Global_Chrome_Upstream_Group, George Sun

For add new hardware, not only need to lock lat hardware, also
need to lock core hardware in case of different instance start
to decoder at the same time.

Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
---
v5: no changes
---
 drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c     | 4 ++--
 drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c | 6 +++---
 drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h     | 2 +-
 3 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c
index 2b334a8a81c6..130ecef2e766 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec.c
@@ -105,12 +105,12 @@ static int vidioc_decoder_cmd(struct file *file, void *priv,
 
 void mtk_vdec_unlock(struct mtk_vcodec_ctx *ctx)
 {
-	mutex_unlock(&ctx->dev->dec_mutex);
+	mutex_unlock(&ctx->dev->dec_mutex[ctx->hw_id]);
 }
 
 void mtk_vdec_lock(struct mtk_vcodec_ctx *ctx)
 {
-	mutex_lock(&ctx->dev->dec_mutex);
+	mutex_lock(&ctx->dev->dec_mutex[ctx->hw_id]);
 }
 
 void mtk_vcodec_dec_release(struct mtk_vcodec_ctx *ctx)
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
index 109f7de126a1..e448cb238c7f 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
@@ -373,7 +373,7 @@ static int mtk_vcodec_probe(struct platform_device *pdev)
 	struct video_device *vfd_dec;
 	phandle rproc_phandle;
 	enum mtk_vcodec_fw_type fw_type;
-	int ret;
+	int i, ret;
 
 	dev = devm_kzalloc(&pdev->dev, sizeof(*dev), GFP_KERNEL);
 	if (!dev)
@@ -405,8 +405,8 @@ static int mtk_vcodec_probe(struct platform_device *pdev)
 		goto err_dec_pm;
 	}
 
-	mutex_init(&dev->dec_mutex);
-	mutex_init(&dev->dev_mutex);
+	for (i = 0; i < MTK_VDEC_HW_MAX; i++)
+		mutex_init(&dev->dec_mutex[i]);
 	spin_lock_init(&dev->irqlock);
 
 	snprintf(dev->v4l2_dev.name, sizeof(dev->v4l2_dev.name), "%s",
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
index a8242389ad24..f1e63acaec76 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
@@ -496,7 +496,7 @@ struct mtk_vcodec_dev {
 	int dec_irq;
 	int enc_irq;
 
-	struct mutex dec_mutex;
+	struct mutex dec_mutex[MTK_VDEC_HW_MAX];
 	struct mutex enc_mutex;
 
 	struct mtk_vcodec_pm pm;
-- 
2.25.1


^ permalink raw reply	[flat|nested] 41+ messages in thread

* [PATCH v5, 11/15] media: mtk-vcodec: Add core thread
  2021-08-11  2:57 [PATCH v5, 00/15] Using component framework to support multi hardware decode Yunfei Dong
                   ` (9 preceding siblings ...)
  2021-08-11  2:57 ` [PATCH v5, 10/15] media: mtk-vcodec: Add new interface to lock different hardware Yunfei Dong
@ 2021-08-11  2:57 ` Yunfei Dong
  2021-08-11  2:57 ` [PATCH v5, 12/15] media: mtk-vcodec: Support 34bits dma address for vdec Yunfei Dong
                   ` (4 subsequent siblings)
  15 siblings, 0 replies; 41+ messages in thread
From: Yunfei Dong @ 2021-08-11  2:57 UTC (permalink / raw)
  To: Yunfei Dong, Alexandre Courbot, Hans Verkuil, Tzung-Bi Shih,
	Tiffany Lin, Andrew-CT Chen, Mauro Carvalho Chehab, Rob Herring,
	Matthias Brugger, Tomasz Figa
  Cc: Hsin-Yi Wang, Fritz Koenig, Irui Wang, linux-media, devicetree,
	linux-kernel, linux-arm-kernel, srv_heupstream, linux-mediatek,
	Project_Global_Chrome_Upstream_Group, George Sun

Core thread:
1. Gets lat_buf from core msg queue.
2. Proceeds core decode.
3. Puts the lat_buf back to lat msg queue.

Both H264 and VP9 rely on the core thread.

Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
---
v5: no changes
---
 .../platform/mtk-vcodec/mtk_vcodec_dec_drv.c  | 12 +++++++
 .../platform/mtk-vcodec/mtk_vcodec_drv.h      |  7 ++++
 .../platform/mtk-vcodec/vdec_msg_queue.c      | 32 +++++++++++++++++++
 .../platform/mtk-vcodec/vdec_msg_queue.h      |  6 ++++
 4 files changed, 57 insertions(+)

diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
index e448cb238c7f..002352fcf8de 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
@@ -405,6 +405,18 @@ static int mtk_vcodec_probe(struct platform_device *pdev)
 		goto err_dec_pm;
 	}
 
+	if (VDEC_LAT_ARCH(dev->vdec_pdata->hw_arch)) {
+		vdec_msg_queue_init_ctx(&dev->msg_queue_core_ctx,
+			MTK_VDEC_CORE);
+		dev->kthread_core = kthread_run(vdec_msg_queue_core_thead, dev,
+			"mtk-%s", "core");
+		if (IS_ERR(dev->kthread_core)) {
+			dev_err(&pdev->dev, "Failed to create core thread");
+			ret = PTR_ERR(dev->kthread_core);
+			goto err_res;
+		}
+	}
+
 	for (i = 0; i < MTK_VDEC_HW_MAX; i++)
 		mutex_init(&dev->dec_mutex[i]);
 	spin_lock_init(&dev->irqlock);
diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
index f1e63acaec76..b6f030a6e55f 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_drv.h
@@ -27,6 +27,7 @@
 #define MTK_VCODEC_MAX_PLANES	3
 #define MTK_V4L2_BENCHMARK	0
 #define WAIT_INTR_TIMEOUT_MS	1000
+#define VDEC_LAT_ARCH(hw_arch) ((hw_arch) >= MTK_VDEC_LAT_SINGLE_CORE)
 
 /*
  * enum mtk_hw_reg_idx - MTK hw register base index
@@ -465,6 +466,9 @@ struct mtk_vcodec_enc_pdata {
  *
  * @comp_dev: component hardware device
  * @component_node: component node
+ *
+ * @kthread_core: thread used for core hardware decode
+ * @msg_queue_core_ctx: msg queue context used for core thread
  */
 struct mtk_vcodec_dev {
 	struct v4l2_device v4l2_dev;
@@ -505,6 +509,9 @@ struct mtk_vcodec_dev {
 
 	void *comp_dev[MTK_VDEC_HW_MAX];
 	struct device_node *component_node[MTK_VDEC_HW_MAX];
+
+	struct task_struct *kthread_core;
+	struct vdec_msg_queue_ctx msg_queue_core_ctx;
 };
 
 static inline struct mtk_vcodec_ctx *fh_to_ctx(struct v4l2_fh *fh)
diff --git a/drivers/media/platform/mtk-vcodec/vdec_msg_queue.c b/drivers/media/platform/mtk-vcodec/vdec_msg_queue.c
index d66ed98c79a9..665f571eab4b 100644
--- a/drivers/media/platform/mtk-vcodec/vdec_msg_queue.c
+++ b/drivers/media/platform/mtk-vcodec/vdec_msg_queue.c
@@ -256,3 +256,35 @@ void vdec_msg_queue_deinit(
 			kfree(lat_buf->private_data);
 	}
 }
+
+int vdec_msg_queue_core_thead(void *data)
+{
+	struct mtk_vcodec_dev *dev = data;
+	struct vdec_lat_buf *lat_buf;
+	struct mtk_vcodec_ctx *ctx;
+
+	set_freezable();
+	for (;;) {
+		try_to_freeze();
+		if (kthread_should_stop())
+			break;
+
+		lat_buf = vdec_msg_queue_dqbuf(&dev->msg_queue_core_ctx);
+		if (!lat_buf)
+			continue;
+
+		ctx = lat_buf->ctx;
+		mtk_vcodec_set_curr_ctx(dev, ctx, MTK_VDEC_CORE);
+
+		if (!lat_buf->core_decode)
+			mtk_v4l2_err("Core decode callback func is NULL");
+		else
+			lat_buf->core_decode(lat_buf);
+
+		mtk_vcodec_set_curr_ctx(dev, NULL, MTK_VDEC_CORE);
+		vdec_msg_queue_qbuf(&ctx->msg_queue.lat_ctx, lat_buf);
+	}
+
+	mtk_v4l2_debug(3, "Video Capture Thread End");
+	return 0;
+}
diff --git a/drivers/media/platform/mtk-vcodec/vdec_msg_queue.h b/drivers/media/platform/mtk-vcodec/vdec_msg_queue.h
index 1905ce713592..b5745b144140 100644
--- a/drivers/media/platform/mtk-vcodec/vdec_msg_queue.h
+++ b/drivers/media/platform/mtk-vcodec/vdec_msg_queue.h
@@ -148,4 +148,10 @@ void vdec_msg_queue_deinit(
 	struct vdec_msg_queue *msg_queue,
 	struct mtk_vcodec_ctx *ctx);
 
+/**
+ * vdec_msg_queue_core_thead - used for core decoder.
+ * @data: private data used for each codec
+ */
+int vdec_msg_queue_core_thead(void *data);
+
 #endif
-- 
2.25.1


^ permalink raw reply	[flat|nested] 41+ messages in thread

* [PATCH v5, 12/15] media: mtk-vcodec: Support 34bits dma address for vdec
  2021-08-11  2:57 [PATCH v5, 00/15] Using component framework to support multi hardware decode Yunfei Dong
                   ` (10 preceding siblings ...)
  2021-08-11  2:57 ` [PATCH v5, 11/15] media: mtk-vcodec: Add core thread Yunfei Dong
@ 2021-08-11  2:57 ` Yunfei Dong
  2021-08-11  2:57 ` [PATCH v5, 13/15] dt-bindings: media: mtk-vcodec: Adds decoder dt-bindings for mt8192 Yunfei Dong
                   ` (3 subsequent siblings)
  15 siblings, 0 replies; 41+ messages in thread
From: Yunfei Dong @ 2021-08-11  2:57 UTC (permalink / raw)
  To: Yunfei Dong, Alexandre Courbot, Hans Verkuil, Tzung-Bi Shih,
	Tiffany Lin, Andrew-CT Chen, Mauro Carvalho Chehab, Rob Herring,
	Matthias Brugger, Tomasz Figa
  Cc: Hsin-Yi Wang, Fritz Koenig, Irui Wang, linux-media, devicetree,
	linux-kernel, linux-arm-kernel, srv_heupstream, linux-mediatek,
	Project_Global_Chrome_Upstream_Group, George Sun

Use the dma_set_mask_and_coherent helper to set vdec
DMA bit mask to support 34bits iova space(16GB) that
the mt8192 iommu HW support.

Whole the iova range separate to 0~4G/4G~8G/8G~12G/12G~16G,
regarding which iova range VDEC actually locate, it
depends on the dma-ranges property of vdec dtsi node.

Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
---
v5: no changes
---
 drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
index 002352fcf8de..1a8d9308327d 100644
--- a/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
+++ b/drivers/media/platform/mtk-vcodec/mtk_vcodec_dec_drv.c
@@ -417,6 +417,9 @@ static int mtk_vcodec_probe(struct platform_device *pdev)
 		}
 	}
 
+	if (of_get_property(pdev->dev.of_node, "dma-ranges", NULL))
+		dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(34));
+
 	for (i = 0; i < MTK_VDEC_HW_MAX; i++)
 		mutex_init(&dev->dec_mutex[i]);
 	spin_lock_init(&dev->irqlock);
-- 
2.25.1


^ permalink raw reply	[flat|nested] 41+ messages in thread

* [PATCH v5, 13/15] dt-bindings: media: mtk-vcodec: Adds decoder dt-bindings for mt8192
  2021-08-11  2:57 [PATCH v5, 00/15] Using component framework to support multi hardware decode Yunfei Dong
                   ` (11 preceding siblings ...)
  2021-08-11  2:57 ` [PATCH v5, 12/15] media: mtk-vcodec: Support 34bits dma address for vdec Yunfei Dong
@ 2021-08-11  2:57 ` Yunfei Dong
  2021-08-11 17:24   ` Rob Herring
                     ` (2 more replies)
  2021-08-11  2:58 ` [PATCH v5, 14/15] media: mtk-vcodec: Add core dec and dec end ipi msg Yunfei Dong
                   ` (2 subsequent siblings)
  15 siblings, 3 replies; 41+ messages in thread
From: Yunfei Dong @ 2021-08-11  2:57 UTC (permalink / raw)
  To: Yunfei Dong, Alexandre Courbot, Hans Verkuil, Tzung-Bi Shih,
	Tiffany Lin, Andrew-CT Chen, Mauro Carvalho Chehab, Rob Herring,
	Matthias Brugger, Tomasz Figa
  Cc: Hsin-Yi Wang, Fritz Koenig, Irui Wang, linux-media, devicetree,
	linux-kernel, linux-arm-kernel, srv_heupstream, linux-mediatek,
	Project_Global_Chrome_Upstream_Group, George Sun

Adds decoder dt-bindings for mt8192.

Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
---
v5: no changes

This patch depends on "Mediatek MT8192 clock support"[1].

The definition of decoder clocks are in mt8192-clk.h, need to include them in case of build fail [1].

[1]https://patchwork.kernel.org/project/linux-mediatek/list/?series=511175
---
 .../media/mediatek,vcodec-comp-decoder.yaml   | 172 ++++++++++++++++++
 1 file changed, 172 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/mediatek,vcodec-comp-decoder.yaml

diff --git a/Documentation/devicetree/bindings/media/mediatek,vcodec-comp-decoder.yaml b/Documentation/devicetree/bindings/media/mediatek,vcodec-comp-decoder.yaml
new file mode 100644
index 000000000000..083c89933917
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/mediatek,vcodec-comp-decoder.yaml
@@ -0,0 +1,172 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/iommu/mediatek,vcodec-comp-decoder.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Mediatek Video Decode Accelerator With Component
+
+maintainers:
+  - Yunfei Dong <yunfei.dong@mediatek.com>
+
+description: |+
+  Mediatek Video Decode is the video decode hardware present in Mediatek
+  SoCs which supports high resolution decoding functionalities. Required
+  master and component node.
+
+properties:
+  compatible:
+    oneOf:
+      - enum:
+          - mediatek,mt8192-vcodec-dec  # for lat hardware
+          - mediatek,mtk-vcodec-lat     # for core hardware
+          - mediatek,mtk-vcodec-core
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    maxItems: 5
+
+  clock-names:
+    items:
+      - const: vdec-sel
+      - const: vdec-soc-vdec
+      - const: vdec-soc-lat
+      - const: vdec-vdec
+      - const: vdec-top
+
+  assigned-clocks: true
+
+  assigned-clock-parents: true
+
+  power-domains:
+    maxItems: 1
+
+  iommus:
+    minItems: 1
+    maxItems: 32
+    description: |
+      List of the hardware port in respective IOMMU block for current Socs.
+      Refer to bindings/iommu/mediatek,iommu.yaml.
+
+  dma-ranges:
+    maxItems: 1
+    description: |
+      Describes the physical address space of IOMMU maps to memory.
+
+  mediatek,scp:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    maxItems: 1
+    description:
+      Describes point to scp.
+
+required:
+      - compatible
+      - reg
+      - iommus
+      - dma-ranges
+
+allOf:
+  - if: #master node
+      properties:
+        compatible:
+          contains:
+            enum:
+              - mediatek,mt8192-vcodec-dec  # for lat hardware
+
+    then:
+      required:
+        - mediatek,scp
+
+  - if: #component node
+      properties:
+        compatible:
+          contains:
+            enum:
+              - mediatek,mtk-vcodec-lat     # for core hardware
+              - mediatek,mtk-vcodec-core
+
+    then:
+      required:
+        - interrupts
+        - clocks
+        - clock-names
+        - assigned-clocks
+        - assigned-clock-parents
+        - power-domains
+
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/memory/mt8192-larb-port.h>
+    #include <dt-bindings/interrupt-controller/irq.h>
+    #include <dt-bindings/clock/mt8192-clk.h>
+    #include <dt-bindings/power/mt8192-power.h>
+
+    vcodec_dec: vcodec_dec@16000000 {
+        compatible = "mediatek,mt8192-vcodec-dec";
+        reg = <0 0x16000000 0 0x1000>;		/* VDEC_SYS */
+        mediatek,scp = <&scp>;
+        iommus = <&iommu0 M4U_PORT_L4_VDEC_MC_EXT>;
+        dma-ranges = <0x1 0x0 0x0 0x40000000 0x0 0xfff00000>;
+    };
+
+    vcodec_lat: vcodec_lat@0x16010000 {
+        compatible = "mediatek,mtk-vcodec-lat";
+        reg = <0 0x16010000 0 0x800>;		/* VDEC_MISC */
+        interrupts = <GIC_SPI 426 IRQ_TYPE_LEVEL_HIGH 0>;
+        iommus = <&iommu0 M4U_PORT_L5_VDEC_LAT0_VLD_EXT>,
+             <&iommu0 M4U_PORT_L5_VDEC_LAT0_VLD2_EXT>,
+             <&iommu0 M4U_PORT_L5_VDEC_LAT0_AVC_MV_EXT>,
+             <&iommu0 M4U_PORT_L5_VDEC_LAT0_PRED_RD_EXT>,
+             <&iommu0 M4U_PORT_L5_VDEC_LAT0_TILE_EXT>,
+             <&iommu0 M4U_PORT_L5_VDEC_LAT0_WDMA_EXT>,
+             <&iommu0 M4U_PORT_L5_VDEC_LAT0_RG_CTRL_DMA_EXT>,
+             <&iommu0 M4U_PORT_L5_VDEC_UFO_ENC_EXT>;
+        dma-ranges = <0x1 0x0 0x0 0x40000000 0x0 0xfff00000>;
+        clocks = <&topckgen CLK_TOP_VDEC_SEL>,
+             <&vdecsys_soc CLK_VDEC_SOC_VDEC>,
+             <&vdecsys_soc CLK_VDEC_SOC_LAT>,
+             <&vdecsys_soc CLK_VDEC_SOC_LARB1>,
+             <&topckgen CLK_TOP_MAINPLL_D4>;
+        clock-names = "vdec-sel", "vdec-soc-vdec", "vdec-soc-lat",
+              "vdec-vdec", "vdec-top";
+        assigned-clocks = <&topckgen CLK_TOP_VDEC_SEL>;
+        assigned-clock-parents = <&topckgen CLK_TOP_MAINPLL_D4>;
+        power-domains = <&spm MT8192_POWER_DOMAIN_VDEC>;
+    };
+
+    vcodec_core: vcodec_core@0x16025000 {
+        compatible = "mediatek,mtk-vcodec-core";
+        reg = <0 0x16025000 0 0x1000>;		/* VDEC_CORE_MISC */
+        interrupts = <GIC_SPI 425 IRQ_TYPE_LEVEL_HIGH 0>;
+        iommus = <&iommu0 M4U_PORT_L4_VDEC_MC_EXT>,
+             <&iommu0 M4U_PORT_L4_VDEC_UFO_EXT>,
+             <&iommu0 M4U_PORT_L4_VDEC_PP_EXT>,
+             <&iommu0 M4U_PORT_L4_VDEC_PRED_RD_EXT>,
+             <&iommu0 M4U_PORT_L4_VDEC_PRED_WR_EXT>,
+             <&iommu0 M4U_PORT_L4_VDEC_PPWRAP_EXT>,
+             <&iommu0 M4U_PORT_L4_VDEC_TILE_EXT>,
+             <&iommu0 M4U_PORT_L4_VDEC_VLD_EXT>,
+             <&iommu0 M4U_PORT_L4_VDEC_VLD2_EXT>,
+             <&iommu0 M4U_PORT_L4_VDEC_AVC_MV_EXT>,
+             <&iommu0 M4U_PORT_L4_VDEC_RG_CTRL_DMA_EXT>;
+        dma-ranges = <0x1 0x0 0x0 0x40000000 0x0 0xfff00000>;
+        clocks = <&topckgen CLK_TOP_VDEC_SEL>,
+             <&vdecsys CLK_VDEC_VDEC>,
+             <&vdecsys CLK_VDEC_LAT>,
+             <&vdecsys CLK_VDEC_LARB1>,
+             <&topckgen CLK_TOP_MAINPLL_D4>;
+        clock-names = "vdec-sel", "vdec-soc-vdec", "vdec-soc-lat",
+              "vdec-vdec", "vdec-top";
+        assigned-clocks = <&topckgen CLK_TOP_VDEC_SEL>;
+        assigned-clock-parents = <&topckgen CLK_TOP_MAINPLL_D4>;
+        power-domains = <&spm MT8192_POWER_DOMAIN_VDEC2>;
+    };
-- 
2.25.1


^ permalink raw reply	[flat|nested] 41+ messages in thread

* [PATCH v5, 14/15] media: mtk-vcodec: Add core dec and dec end ipi msg
  2021-08-11  2:57 [PATCH v5, 00/15] Using component framework to support multi hardware decode Yunfei Dong
                   ` (12 preceding siblings ...)
  2021-08-11  2:57 ` [PATCH v5, 13/15] dt-bindings: media: mtk-vcodec: Adds decoder dt-bindings for mt8192 Yunfei Dong
@ 2021-08-11  2:58 ` Yunfei Dong
  2021-08-11  2:58 ` [PATCH v5, 15/15] media: mtk-vcodec: Use codec type to separate different hardware Yunfei Dong
  2021-08-18 14:11 ` [PATCH v5, 00/15] Using component framework to support multi hardware decode Ezequiel Garcia
  15 siblings, 0 replies; 41+ messages in thread
From: Yunfei Dong @ 2021-08-11  2:58 UTC (permalink / raw)
  To: Yunfei Dong, Alexandre Courbot, Hans Verkuil, Tzung-Bi Shih,
	Tiffany Lin, Andrew-CT Chen, Mauro Carvalho Chehab, Rob Herring,
	Matthias Brugger, Tomasz Figa
  Cc: Hsin-Yi Wang, Fritz Koenig, Irui Wang, linux-media, devicetree,
	linux-kernel, linux-arm-kernel, srv_heupstream, linux-mediatek,
	Project_Global_Chrome_Upstream_Group, George Sun

Add core dec and dec end ipi msg: AP_IPIMSG_DEC_CORE/AP_IPIMSG_DEC_CORE_END.

Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
---
v5: no changes
---
 .../media/platform/mtk-vcodec/vdec_ipi_msg.h   |  4 ++++
 .../media/platform/mtk-vcodec/vdec_vpu_if.c    | 12 ++++++++++++
 .../media/platform/mtk-vcodec/vdec_vpu_if.h    | 18 ++++++++++++++++++
 3 files changed, 34 insertions(+)

diff --git a/drivers/media/platform/mtk-vcodec/vdec_ipi_msg.h b/drivers/media/platform/mtk-vcodec/vdec_ipi_msg.h
index 5f45a537beb4..9d8079c4f976 100644
--- a/drivers/media/platform/mtk-vcodec/vdec_ipi_msg.h
+++ b/drivers/media/platform/mtk-vcodec/vdec_ipi_msg.h
@@ -18,12 +18,16 @@ enum vdec_ipi_msgid {
 	AP_IPIMSG_DEC_END = 0xA002,
 	AP_IPIMSG_DEC_DEINIT = 0xA003,
 	AP_IPIMSG_DEC_RESET = 0xA004,
+	AP_IPIMSG_DEC_CORE = 0xA005,
+	AP_IPIMSG_DEC_CORE_END = 0xA006,
 
 	VPU_IPIMSG_DEC_INIT_ACK = 0xB000,
 	VPU_IPIMSG_DEC_START_ACK = 0xB001,
 	VPU_IPIMSG_DEC_END_ACK = 0xB002,
 	VPU_IPIMSG_DEC_DEINIT_ACK = 0xB003,
 	VPU_IPIMSG_DEC_RESET_ACK = 0xB004,
+	VPU_IPIMSG_DEC_CORE_ACK = 0xB005,
+	VPU_IPIMSG_DEC_CORE_END_ACK = 0xB006,
 };
 
 /**
diff --git a/drivers/media/platform/mtk-vcodec/vdec_vpu_if.c b/drivers/media/platform/mtk-vcodec/vdec_vpu_if.c
index 5dffc459a33d..bfd8e87dceff 100644
--- a/drivers/media/platform/mtk-vcodec/vdec_vpu_if.c
+++ b/drivers/media/platform/mtk-vcodec/vdec_vpu_if.c
@@ -85,6 +85,8 @@ static void vpu_dec_ipi_handler(void *data, unsigned int len, void *priv)
 		case VPU_IPIMSG_DEC_END_ACK:
 		case VPU_IPIMSG_DEC_DEINIT_ACK:
 		case VPU_IPIMSG_DEC_RESET_ACK:
+		case VPU_IPIMSG_DEC_CORE_ACK:
+		case VPU_IPIMSG_DEC_CORE_END_ACK:
 			break;
 
 		default:
@@ -191,11 +193,21 @@ int vpu_dec_start(struct vdec_vpu_inst *vpu, uint32_t *data, unsigned int len)
 	return err;
 }
 
+int vpu_dec_core(struct vdec_vpu_inst *vpu)
+{
+	return vcodec_send_ap_ipi(vpu, AP_IPIMSG_DEC_CORE);
+}
+
 int vpu_dec_end(struct vdec_vpu_inst *vpu)
 {
 	return vcodec_send_ap_ipi(vpu, AP_IPIMSG_DEC_END);
 }
 
+int vpu_dec_core_end(struct vdec_vpu_inst *vpu)
+{
+	return vcodec_send_ap_ipi(vpu, AP_IPIMSG_DEC_CORE_END);
+}
+
 int vpu_dec_deinit(struct vdec_vpu_inst *vpu)
 {
 	return vcodec_send_ap_ipi(vpu, AP_IPIMSG_DEC_DEINIT);
diff --git a/drivers/media/platform/mtk-vcodec/vdec_vpu_if.h b/drivers/media/platform/mtk-vcodec/vdec_vpu_if.h
index c2ed5b6cab8b..ae24b75d1649 100644
--- a/drivers/media/platform/mtk-vcodec/vdec_vpu_if.h
+++ b/drivers/media/platform/mtk-vcodec/vdec_vpu_if.h
@@ -82,4 +82,22 @@ int vpu_dec_deinit(struct vdec_vpu_inst *vpu);
  */
 int vpu_dec_reset(struct vdec_vpu_inst *vpu);
 
+/**
+ * vpu_dec_core - core start decoding, basically the function will be invoked once
+ *                 every frame.
+ *
+ * @vpu : instance for vdec_vpu_inst
+ */
+int vpu_dec_core(struct vdec_vpu_inst *vpu);
+
+/**
+ * vpu_dec_core_end - core end decoding, basically the function will be invoked once
+ *               when core HW decoding done and receive interrupt successfully. The
+ *               decoder in VPU will updata hardware information and deinit hardware
+ *               and check if there is a new decoded frame available to display.
+ *
+ * @vpu : instance for vdec_vpu_inst
+ */
+int vpu_dec_core_end(struct vdec_vpu_inst *vpu);
+
 #endif
-- 
2.25.1


^ permalink raw reply	[flat|nested] 41+ messages in thread

* [PATCH v5, 15/15] media: mtk-vcodec: Use codec type to separate different hardware
  2021-08-11  2:57 [PATCH v5, 00/15] Using component framework to support multi hardware decode Yunfei Dong
                   ` (13 preceding siblings ...)
  2021-08-11  2:58 ` [PATCH v5, 14/15] media: mtk-vcodec: Add core dec and dec end ipi msg Yunfei Dong
@ 2021-08-11  2:58 ` Yunfei Dong
  2021-08-18 14:11 ` [PATCH v5, 00/15] Using component framework to support multi hardware decode Ezequiel Garcia
  15 siblings, 0 replies; 41+ messages in thread
From: Yunfei Dong @ 2021-08-11  2:58 UTC (permalink / raw)
  To: Yunfei Dong, Alexandre Courbot, Hans Verkuil, Tzung-Bi Shih,
	Tiffany Lin, Andrew-CT Chen, Mauro Carvalho Chehab, Rob Herring,
	Matthias Brugger, Tomasz Figa
  Cc: Hsin-Yi Wang, Fritz Koenig, Irui Wang, linux-media, devicetree,
	linux-kernel, linux-arm-kernel, srv_heupstream, linux-mediatek,
	Project_Global_Chrome_Upstream_Group, George Sun

There are just one core thread, in order to separeate different
hardware, using codec type to separeate it in scp driver.

Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
---
v5: no changes
---
 .../media/platform/mtk-vcodec/vdec_ipi_msg.h  | 12 ++++---
 .../media/platform/mtk-vcodec/vdec_vpu_if.c   | 34 ++++++++++++++++---
 .../media/platform/mtk-vcodec/vdec_vpu_if.h   |  4 +++
 3 files changed, 41 insertions(+), 9 deletions(-)

diff --git a/drivers/media/platform/mtk-vcodec/vdec_ipi_msg.h b/drivers/media/platform/mtk-vcodec/vdec_ipi_msg.h
index 9d8079c4f976..c488f0c40190 100644
--- a/drivers/media/platform/mtk-vcodec/vdec_ipi_msg.h
+++ b/drivers/media/platform/mtk-vcodec/vdec_ipi_msg.h
@@ -35,6 +35,8 @@ enum vdec_ipi_msgid {
  * @msg_id	: vdec_ipi_msgid
  * @vpu_inst_addr : VPU decoder instance address. Used if ABI version < 2.
  * @inst_id     : instance ID. Used if the ABI version >= 2.
+ * @codec_type	: Codec fourcc
+ * @reserved	: reserved param
  */
 struct vdec_ap_ipi_cmd {
 	uint32_t msg_id;
@@ -42,6 +44,8 @@ struct vdec_ap_ipi_cmd {
 		uint32_t vpu_inst_addr;
 		uint32_t inst_id;
 	};
+	uint32_t codec_type;
+	uint32_t reserved;
 };
 
 /**
@@ -59,12 +63,12 @@ struct vdec_vpu_ipi_ack {
 /**
  * struct vdec_ap_ipi_init - for AP_IPIMSG_DEC_INIT
  * @msg_id	: AP_IPIMSG_DEC_INIT
- * @reserved	: Reserved field
+ * @codec_type	: Codec fourcc
  * @ap_inst_addr	: AP video decoder instance address
  */
 struct vdec_ap_ipi_init {
 	uint32_t msg_id;
-	uint32_t reserved;
+	uint32_t codec_type;
 	uint64_t ap_inst_addr;
 };
 
@@ -77,7 +81,7 @@ struct vdec_ap_ipi_init {
  *	H264 decoder [0]:buf_sz [1]:nal_start
  *	VP8 decoder  [0]:width/height
  *	VP9 decoder  [0]:profile, [1][2] width/height
- * @reserved	: Reserved field
+ * @codec_type	: Codec fourcc
  */
 struct vdec_ap_ipi_dec_start {
 	uint32_t msg_id;
@@ -86,7 +90,7 @@ struct vdec_ap_ipi_dec_start {
 		uint32_t inst_id;
 	};
 	uint32_t data[3];
-	uint32_t reserved;
+	uint32_t codec_type;
 };
 
 /**
diff --git a/drivers/media/platform/mtk-vcodec/vdec_vpu_if.c b/drivers/media/platform/mtk-vcodec/vdec_vpu_if.c
index bfd8e87dceff..c84fac52fe26 100644
--- a/drivers/media/platform/mtk-vcodec/vdec_vpu_if.c
+++ b/drivers/media/platform/mtk-vcodec/vdec_vpu_if.c
@@ -100,18 +100,29 @@ static void vpu_dec_ipi_handler(void *data, unsigned int len, void *priv)
 
 static int vcodec_vpu_send_msg(struct vdec_vpu_inst *vpu, void *msg, int len)
 {
-	int err;
+	int err, id, msgid;
 
-	mtk_vcodec_debug(vpu, "id=%X", *(uint32_t *)msg);
+	msgid = *(uint32_t *)msg;
+	mtk_vcodec_debug(vpu, "id=%X", msgid);
 
 	vpu->failure = 0;
 	vpu->signaled = 0;
 
-	err = mtk_vcodec_fw_ipi_send(vpu->ctx->dev->fw_handler, vpu->id, msg,
+	if (vpu->ctx->dev->vdec_pdata->hw_arch == MTK_VDEC_LAT_SINGLE_CORE) {
+		if (msgid == AP_IPIMSG_DEC_CORE ||
+			msgid == AP_IPIMSG_DEC_CORE_END)
+			id = vpu->core_id;
+		else
+			id = vpu->id;
+	} else {
+		id = vpu->id;
+	}
+
+	err = mtk_vcodec_fw_ipi_send(vpu->ctx->dev->fw_handler, id, msg,
 				     len, 2000);
 	if (err) {
 		mtk_vcodec_err(vpu, "send fail vpu_id=%d msg_id=%X status=%d",
-			       vpu->id, *(uint32_t *)msg, err);
+			       id, msgid, err);
 		return err;
 	}
 
@@ -131,6 +142,7 @@ static int vcodec_send_ap_ipi(struct vdec_vpu_inst *vpu, unsigned int msg_id)
 		msg.vpu_inst_addr = vpu->inst_addr;
 	else
 		msg.inst_id = vpu->inst_id;
+	msg.codec_type = vpu->codec_type;
 
 	err = vcodec_vpu_send_msg(vpu, &msg, sizeof(msg));
 	mtk_vcodec_debug(vpu, "- id=%X ret=%d", msg_id, err);
@@ -149,14 +161,25 @@ int vpu_dec_init(struct vdec_vpu_inst *vpu)
 
 	err = mtk_vcodec_fw_ipi_register(vpu->ctx->dev->fw_handler, vpu->id,
 					 vpu->handler, "vdec", NULL);
-	if (err != 0) {
+	if (err) {
 		mtk_vcodec_err(vpu, "vpu_ipi_register fail status=%d", err);
 		return err;
 	}
 
+	if (vpu->ctx->dev->vdec_pdata->hw_arch == MTK_VDEC_LAT_SINGLE_CORE) {
+		err = mtk_vcodec_fw_ipi_register(vpu->ctx->dev->fw_handler,
+					 vpu->core_id, vpu->handler,
+					 "vdec", NULL);
+		if (err) {
+			mtk_vcodec_err(vpu, "vpu_ipi_register core fail status=%d", err);
+			return err;
+		}
+	}
+
 	memset(&msg, 0, sizeof(msg));
 	msg.msg_id = AP_IPIMSG_DEC_INIT;
 	msg.ap_inst_addr = (unsigned long)vpu;
+	msg.codec_type = vpu->codec_type;
 
 	mtk_vcodec_debug(vpu, "vdec_inst=%p", vpu);
 
@@ -187,6 +210,7 @@ int vpu_dec_start(struct vdec_vpu_inst *vpu, uint32_t *data, unsigned int len)
 
 	for (i = 0; i < len; i++)
 		msg.data[i] = data[i];
+	msg.codec_type = vpu->codec_type;
 
 	err = vcodec_vpu_send_msg(vpu, (void *)&msg, sizeof(msg));
 	mtk_vcodec_debug(vpu, "- ret=%d", err);
diff --git a/drivers/media/platform/mtk-vcodec/vdec_vpu_if.h b/drivers/media/platform/mtk-vcodec/vdec_vpu_if.h
index ae24b75d1649..802660770a87 100644
--- a/drivers/media/platform/mtk-vcodec/vdec_vpu_if.h
+++ b/drivers/media/platform/mtk-vcodec/vdec_vpu_if.h
@@ -14,6 +14,7 @@ struct mtk_vcodec_ctx;
 /**
  * struct vdec_vpu_inst - VPU instance for video codec
  * @id          : ipi msg id for each decoder
+ * @core_id     : core id used to separate different hardware
  * @vsi         : driver structure allocated by VPU side and shared to AP side
  *                for control and info share
  * @failure     : VPU execution result status, 0: success, others: fail
@@ -26,9 +27,11 @@ struct mtk_vcodec_ctx;
  * @dev		: platform device of VPU
  * @wq          : wait queue to wait VPU message ack
  * @handler     : ipi handler for each decoder
+ * @codec_type     : used codec type to separate different codecs
  */
 struct vdec_vpu_inst {
 	int id;
+	int core_id;
 	void *vsi;
 	int32_t failure;
 	uint32_t inst_addr;
@@ -38,6 +41,7 @@ struct vdec_vpu_inst {
 	struct mtk_vcodec_ctx *ctx;
 	wait_queue_head_t wq;
 	mtk_vcodec_ipi_handler handler;
+	unsigned int codec_type;
 };
 
 /**
-- 
2.25.1


^ permalink raw reply	[flat|nested] 41+ messages in thread

* Re: [PATCH v5, 13/15] dt-bindings: media: mtk-vcodec: Adds decoder dt-bindings for mt8192
  2021-08-11  2:57 ` [PATCH v5, 13/15] dt-bindings: media: mtk-vcodec: Adds decoder dt-bindings for mt8192 Yunfei Dong
@ 2021-08-11 17:24   ` Rob Herring
  2021-08-17  3:38     ` yunfei.dong
  2021-08-11 17:41   ` Rob Herring
  2021-08-11 17:59   ` Laurent Pinchart
  2 siblings, 1 reply; 41+ messages in thread
From: Rob Herring @ 2021-08-11 17:24 UTC (permalink / raw)
  To: Yunfei Dong
  Cc: linux-mediatek, Alexandre Courbot, linux-kernel, Andrew-CT Chen,
	Tomasz Figa, srv_heupstream, devicetree, linux-arm-kernel,
	Fritz Koenig, Rob Herring, Project_Global_Chrome_Upstream_Group,
	Tzung-Bi Shih, Tiffany Lin, Hsin-Yi Wang, Matthias Brugger,
	George Sun, Mauro Carvalho Chehab, Hans Verkuil, Irui Wang,
	linux-media

On Wed, 11 Aug 2021 10:57:59 +0800, Yunfei Dong wrote:
> Adds decoder dt-bindings for mt8192.
> 
> Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
> ---
> v5: no changes
> 
> This patch depends on "Mediatek MT8192 clock support"[1].
> 
> The definition of decoder clocks are in mt8192-clk.h, need to include them in case of build fail [1].
> 
> [1]https://patchwork.kernel.org/project/linux-mediatek/list/?series=511175
> ---
>  .../media/mediatek,vcodec-comp-decoder.yaml   | 172 ++++++++++++++++++
>  1 file changed, 172 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/media/mediatek,vcodec-comp-decoder.yaml
> 

My bot found errors running 'make DT_CHECKER_FLAGS=-m dt_binding_check'
on your patch (DT_CHECKER_FLAGS is new in v5.13):

yamllint warnings/errors:

dtschema/dtc warnings/errors:
./Documentation/devicetree/bindings/media/mediatek,vcodec-comp-decoder.yaml: $id: relative path/filename doesn't match actual path or filename
	expected: http://devicetree.org/schemas/media/mediatek,vcodec-comp-decoder.yaml#
Documentation/devicetree/bindings/media/mediatek,vcodec-comp-decoder.example.dts:22:18: fatal error: dt-bindings/clock/mt8192-clk.h: No such file or directory
   22 |         #include <dt-bindings/clock/mt8192-clk.h>
      |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.
make[1]: *** [scripts/Makefile.lib:380: Documentation/devicetree/bindings/media/mediatek,vcodec-comp-decoder.example.dt.yaml] Error 1
make[1]: *** Waiting for unfinished jobs....
make: *** [Makefile:1419: dt_binding_check] Error 2

doc reference errors (make refcheckdocs):

See https://patchwork.ozlabs.org/patch/1515556

This check can fail if there are any dependencies. The base for a patch
series is generally the most recent rc1.

If you already ran 'make dt_binding_check' and didn't see the above
error(s), then make sure 'yamllint' is installed and dt-schema is up to
date:

pip3 install dtschema --upgrade

Please check and re-submit.


^ permalink raw reply	[flat|nested] 41+ messages in thread

* Re: [PATCH v5, 13/15] dt-bindings: media: mtk-vcodec: Adds decoder dt-bindings for mt8192
  2021-08-11  2:57 ` [PATCH v5, 13/15] dt-bindings: media: mtk-vcodec: Adds decoder dt-bindings for mt8192 Yunfei Dong
  2021-08-11 17:24   ` Rob Herring
@ 2021-08-11 17:41   ` Rob Herring
  2021-08-11 17:59   ` Laurent Pinchart
  2 siblings, 0 replies; 41+ messages in thread
From: Rob Herring @ 2021-08-11 17:41 UTC (permalink / raw)
  To: Yunfei Dong
  Cc: Alexandre Courbot, Hans Verkuil, Tzung-Bi Shih, Tiffany Lin,
	Andrew-CT Chen, Mauro Carvalho Chehab, Matthias Brugger,
	Tomasz Figa, Hsin-Yi Wang, Fritz Koenig, Irui Wang, linux-media,
	devicetree, linux-kernel, linux-arm-kernel, srv_heupstream,
	linux-mediatek, Project_Global_Chrome_Upstream_Group, George Sun

On Wed, Aug 11, 2021 at 10:57:59AM +0800, Yunfei Dong wrote:
> Adds decoder dt-bindings for mt8192.
> 
> Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
> ---
> v5: no changes
> 
> This patch depends on "Mediatek MT8192 clock support"[1].
> 
> The definition of decoder clocks are in mt8192-clk.h, need to include them in case of build fail [1].
> 
> [1]https://patchwork.kernel.org/project/linux-mediatek/list/?series=511175
> ---
>  .../media/mediatek,vcodec-comp-decoder.yaml   | 172 ++++++++++++++++++
>  1 file changed, 172 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/media/mediatek,vcodec-comp-decoder.yaml
> 
> diff --git a/Documentation/devicetree/bindings/media/mediatek,vcodec-comp-decoder.yaml b/Documentation/devicetree/bindings/media/mediatek,vcodec-comp-decoder.yaml
> new file mode 100644
> index 000000000000..083c89933917
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/mediatek,vcodec-comp-decoder.yaml
> @@ -0,0 +1,172 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/iommu/mediatek,vcodec-comp-decoder.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Mediatek Video Decode Accelerator With Component
> +
> +maintainers:
> +  - Yunfei Dong <yunfei.dong@mediatek.com>
> +
> +description: |+
> +  Mediatek Video Decode is the video decode hardware present in Mediatek
> +  SoCs which supports high resolution decoding functionalities. Required
> +  master and component node.
> +
> +properties:
> +  compatible:
> +    oneOf:

Don't need 'oneOf' when only one entry.

> +      - enum:
> +          - mediatek,mt8192-vcodec-dec  # for lat hardware
> +          - mediatek,mtk-vcodec-lat     # for core hardware
> +          - mediatek,mtk-vcodec-core
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 5
> +
> +  clock-names:
> +    items:
> +      - const: vdec-sel
> +      - const: vdec-soc-vdec
> +      - const: vdec-soc-lat
> +      - const: vdec-vdec
> +      - const: vdec-top
> +

> +  assigned-clocks: true
> +
> +  assigned-clock-parents: true

Don't need these 2. Always valid if 'clocks' is present.

> +
> +  power-domains:
> +    maxItems: 1
> +
> +  iommus:
> +    minItems: 1
> +    maxItems: 32
> +    description: |
> +      List of the hardware port in respective IOMMU block for current Socs.
> +      Refer to bindings/iommu/mediatek,iommu.yaml.
> +
> +  dma-ranges:
> +    maxItems: 1
> +    description: |
> +      Describes the physical address space of IOMMU maps to memory.
> +
> +  mediatek,scp:
> +    $ref: /schemas/types.yaml#/definitions/phandle
> +    maxItems: 1
> +    description:
> +      Describes point to scp.
> +
> +required:
> +      - compatible
> +      - reg
> +      - iommus
> +      - dma-ranges
> +
> +allOf:
> +  - if: #master node
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - mediatek,mt8192-vcodec-dec  # for lat hardware
> +
> +    then:
> +      required:
> +        - mediatek,scp
> +
> +  - if: #component node
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - mediatek,mtk-vcodec-lat     # for core hardware
> +              - mediatek,mtk-vcodec-core
> +
> +    then:
> +      required:
> +        - interrupts
> +        - clocks
> +        - clock-names
> +        - assigned-clocks
> +        - assigned-clock-parents
> +        - power-domains
> +
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    #include <dt-bindings/memory/mt8192-larb-port.h>
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +    #include <dt-bindings/clock/mt8192-clk.h>
> +    #include <dt-bindings/power/mt8192-power.h>
> +
> +    vcodec_dec: vcodec_dec@16000000 {
> +        compatible = "mediatek,mt8192-vcodec-dec";
> +        reg = <0 0x16000000 0 0x1000>;		/* VDEC_SYS */
> +        mediatek,scp = <&scp>;
> +        iommus = <&iommu0 M4U_PORT_L4_VDEC_MC_EXT>;
> +        dma-ranges = <0x1 0x0 0x0 0x40000000 0x0 0xfff00000>;
> +    };
> +
> +    vcodec_lat: vcodec_lat@0x16010000 {
> +        compatible = "mediatek,mtk-vcodec-lat";
> +        reg = <0 0x16010000 0 0x800>;		/* VDEC_MISC */
> +        interrupts = <GIC_SPI 426 IRQ_TYPE_LEVEL_HIGH 0>;
> +        iommus = <&iommu0 M4U_PORT_L5_VDEC_LAT0_VLD_EXT>,
> +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_VLD2_EXT>,
> +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_AVC_MV_EXT>,
> +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_PRED_RD_EXT>,
> +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_TILE_EXT>,
> +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_WDMA_EXT>,
> +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_RG_CTRL_DMA_EXT>,
> +             <&iommu0 M4U_PORT_L5_VDEC_UFO_ENC_EXT>;
> +        dma-ranges = <0x1 0x0 0x0 0x40000000 0x0 0xfff00000>;
> +        clocks = <&topckgen CLK_TOP_VDEC_SEL>,
> +             <&vdecsys_soc CLK_VDEC_SOC_VDEC>,
> +             <&vdecsys_soc CLK_VDEC_SOC_LAT>,
> +             <&vdecsys_soc CLK_VDEC_SOC_LARB1>,
> +             <&topckgen CLK_TOP_MAINPLL_D4>;
> +        clock-names = "vdec-sel", "vdec-soc-vdec", "vdec-soc-lat",
> +              "vdec-vdec", "vdec-top";
> +        assigned-clocks = <&topckgen CLK_TOP_VDEC_SEL>;
> +        assigned-clock-parents = <&topckgen CLK_TOP_MAINPLL_D4>;
> +        power-domains = <&spm MT8192_POWER_DOMAIN_VDEC>;
> +    };
> +
> +    vcodec_core: vcodec_core@0x16025000 {
> +        compatible = "mediatek,mtk-vcodec-core";
> +        reg = <0 0x16025000 0 0x1000>;		/* VDEC_CORE_MISC */
> +        interrupts = <GIC_SPI 425 IRQ_TYPE_LEVEL_HIGH 0>;
> +        iommus = <&iommu0 M4U_PORT_L4_VDEC_MC_EXT>,
> +             <&iommu0 M4U_PORT_L4_VDEC_UFO_EXT>,
> +             <&iommu0 M4U_PORT_L4_VDEC_PP_EXT>,
> +             <&iommu0 M4U_PORT_L4_VDEC_PRED_RD_EXT>,
> +             <&iommu0 M4U_PORT_L4_VDEC_PRED_WR_EXT>,
> +             <&iommu0 M4U_PORT_L4_VDEC_PPWRAP_EXT>,
> +             <&iommu0 M4U_PORT_L4_VDEC_TILE_EXT>,
> +             <&iommu0 M4U_PORT_L4_VDEC_VLD_EXT>,
> +             <&iommu0 M4U_PORT_L4_VDEC_VLD2_EXT>,
> +             <&iommu0 M4U_PORT_L4_VDEC_AVC_MV_EXT>,
> +             <&iommu0 M4U_PORT_L4_VDEC_RG_CTRL_DMA_EXT>;
> +        dma-ranges = <0x1 0x0 0x0 0x40000000 0x0 0xfff00000>;
> +        clocks = <&topckgen CLK_TOP_VDEC_SEL>,
> +             <&vdecsys CLK_VDEC_VDEC>,
> +             <&vdecsys CLK_VDEC_LAT>,
> +             <&vdecsys CLK_VDEC_LARB1>,
> +             <&topckgen CLK_TOP_MAINPLL_D4>;
> +        clock-names = "vdec-sel", "vdec-soc-vdec", "vdec-soc-lat",
> +              "vdec-vdec", "vdec-top";
> +        assigned-clocks = <&topckgen CLK_TOP_VDEC_SEL>;
> +        assigned-clock-parents = <&topckgen CLK_TOP_MAINPLL_D4>;
> +        power-domains = <&spm MT8192_POWER_DOMAIN_VDEC2>;
> +    };
> -- 
> 2.25.1
> 
> 

^ permalink raw reply	[flat|nested] 41+ messages in thread

* Re: [PATCH v5, 13/15] dt-bindings: media: mtk-vcodec: Adds decoder dt-bindings for mt8192
  2021-08-11  2:57 ` [PATCH v5, 13/15] dt-bindings: media: mtk-vcodec: Adds decoder dt-bindings for mt8192 Yunfei Dong
  2021-08-11 17:24   ` Rob Herring
  2021-08-11 17:41   ` Rob Herring
@ 2021-08-11 17:59   ` Laurent Pinchart
  2021-08-17  3:50     ` yunfei.dong
  2021-08-29 20:50     ` Ezequiel Garcia
  2 siblings, 2 replies; 41+ messages in thread
From: Laurent Pinchart @ 2021-08-11 17:59 UTC (permalink / raw)
  To: Yunfei Dong
  Cc: Alexandre Courbot, Hans Verkuil, Tzung-Bi Shih, Tiffany Lin,
	Andrew-CT Chen, Mauro Carvalho Chehab, Rob Herring,
	Matthias Brugger, Tomasz Figa, Hsin-Yi Wang, Fritz Koenig,
	Irui Wang, linux-media, devicetree, linux-kernel,
	linux-arm-kernel, srv_heupstream, linux-mediatek,
	Project_Global_Chrome_Upstream_Group, George Sun

Hi Yunfei,

Thank you for the patch.

On Wed, Aug 11, 2021 at 10:57:59AM +0800, Yunfei Dong wrote:
> Adds decoder dt-bindings for mt8192.
> 
> Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
> ---
> v5: no changes
> 
> This patch depends on "Mediatek MT8192 clock support"[1].
> 
> The definition of decoder clocks are in mt8192-clk.h, need to include them in case of build fail [1].
> 
> [1]https://patchwork.kernel.org/project/linux-mediatek/list/?series=511175
> ---
>  .../media/mediatek,vcodec-comp-decoder.yaml   | 172 ++++++++++++++++++
>  1 file changed, 172 insertions(+)
>  create mode 100644 Documentation/devicetree/bindings/media/mediatek,vcodec-comp-decoder.yaml
> 
> diff --git a/Documentation/devicetree/bindings/media/mediatek,vcodec-comp-decoder.yaml b/Documentation/devicetree/bindings/media/mediatek,vcodec-comp-decoder.yaml
> new file mode 100644
> index 000000000000..083c89933917
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/media/mediatek,vcodec-comp-decoder.yaml
> @@ -0,0 +1,172 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/iommu/mediatek,vcodec-comp-decoder.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: Mediatek Video Decode Accelerator With Component
> +
> +maintainers:
> +  - Yunfei Dong <yunfei.dong@mediatek.com>
> +
> +description: |+
> +  Mediatek Video Decode is the video decode hardware present in Mediatek
> +  SoCs which supports high resolution decoding functionalities. Required
> +  master and component node.

This should explain how the three IP cores relate to each other.

> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - enum:
> +          - mediatek,mt8192-vcodec-dec  # for lat hardware
> +          - mediatek,mtk-vcodec-lat     # for core hardware
> +          - mediatek,mtk-vcodec-core
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  clocks:
> +    maxItems: 5
> +
> +  clock-names:
> +    items:
> +      - const: vdec-sel
> +      - const: vdec-soc-vdec
> +      - const: vdec-soc-lat
> +      - const: vdec-vdec
> +      - const: vdec-top
> +
> +  assigned-clocks: true
> +
> +  assigned-clock-parents: true
> +
> +  power-domains:
> +    maxItems: 1
> +
> +  iommus:
> +    minItems: 1
> +    maxItems: 32
> +    description: |
> +      List of the hardware port in respective IOMMU block for current Socs.
> +      Refer to bindings/iommu/mediatek,iommu.yaml.
> +
> +  dma-ranges:
> +    maxItems: 1
> +    description: |
> +      Describes the physical address space of IOMMU maps to memory.
> +
> +  mediatek,scp:
> +    $ref: /schemas/types.yaml#/definitions/phandle
> +    maxItems: 1
> +    description:
> +      Describes point to scp.
> +
> +required:
> +      - compatible
> +      - reg
> +      - iommus
> +      - dma-ranges
> +
> +allOf:
> +  - if: #master node
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - mediatek,mt8192-vcodec-dec  # for lat hardware
> +
> +    then:
> +      required:
> +        - mediatek,scp
> +
> +  - if: #component node
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - mediatek,mtk-vcodec-lat     # for core hardware
> +              - mediatek,mtk-vcodec-core
> +
> +    then:
> +      required:
> +        - interrupts
> +        - clocks
> +        - clock-names
> +        - assigned-clocks
> +        - assigned-clock-parents
> +        - power-domains
> +
> +
> +additionalProperties: false
> +
> +examples:
> +  - |
> +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> +    #include <dt-bindings/memory/mt8192-larb-port.h>
> +    #include <dt-bindings/interrupt-controller/irq.h>
> +    #include <dt-bindings/clock/mt8192-clk.h>
> +    #include <dt-bindings/power/mt8192-power.h>
> +
> +    vcodec_dec: vcodec_dec@16000000 {
> +        compatible = "mediatek,mt8192-vcodec-dec";
> +        reg = <0 0x16000000 0 0x1000>;		/* VDEC_SYS */
> +        mediatek,scp = <&scp>;
> +        iommus = <&iommu0 M4U_PORT_L4_VDEC_MC_EXT>;
> +        dma-ranges = <0x1 0x0 0x0 0x40000000 0x0 0xfff00000>;
> +    };
> +
> +    vcodec_lat: vcodec_lat@0x16010000 {
> +        compatible = "mediatek,mtk-vcodec-lat";
> +        reg = <0 0x16010000 0 0x800>;		/* VDEC_MISC */
> +        interrupts = <GIC_SPI 426 IRQ_TYPE_LEVEL_HIGH 0>;
> +        iommus = <&iommu0 M4U_PORT_L5_VDEC_LAT0_VLD_EXT>,
> +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_VLD2_EXT>,
> +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_AVC_MV_EXT>,
> +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_PRED_RD_EXT>,
> +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_TILE_EXT>,
> +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_WDMA_EXT>,
> +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_RG_CTRL_DMA_EXT>,
> +             <&iommu0 M4U_PORT_L5_VDEC_UFO_ENC_EXT>;
> +        dma-ranges = <0x1 0x0 0x0 0x40000000 0x0 0xfff00000>;
> +        clocks = <&topckgen CLK_TOP_VDEC_SEL>,
> +             <&vdecsys_soc CLK_VDEC_SOC_VDEC>,
> +             <&vdecsys_soc CLK_VDEC_SOC_LAT>,
> +             <&vdecsys_soc CLK_VDEC_SOC_LARB1>,
> +             <&topckgen CLK_TOP_MAINPLL_D4>;
> +        clock-names = "vdec-sel", "vdec-soc-vdec", "vdec-soc-lat",
> +              "vdec-vdec", "vdec-top";
> +        assigned-clocks = <&topckgen CLK_TOP_VDEC_SEL>;
> +        assigned-clock-parents = <&topckgen CLK_TOP_MAINPLL_D4>;
> +        power-domains = <&spm MT8192_POWER_DOMAIN_VDEC>;
> +    };
> +
> +    vcodec_core: vcodec_core@0x16025000 {
> +        compatible = "mediatek,mtk-vcodec-core";
> +        reg = <0 0x16025000 0 0x1000>;		/* VDEC_CORE_MISC */
> +        interrupts = <GIC_SPI 425 IRQ_TYPE_LEVEL_HIGH 0>;
> +        iommus = <&iommu0 M4U_PORT_L4_VDEC_MC_EXT>,
> +             <&iommu0 M4U_PORT_L4_VDEC_UFO_EXT>,
> +             <&iommu0 M4U_PORT_L4_VDEC_PP_EXT>,
> +             <&iommu0 M4U_PORT_L4_VDEC_PRED_RD_EXT>,
> +             <&iommu0 M4U_PORT_L4_VDEC_PRED_WR_EXT>,
> +             <&iommu0 M4U_PORT_L4_VDEC_PPWRAP_EXT>,
> +             <&iommu0 M4U_PORT_L4_VDEC_TILE_EXT>,
> +             <&iommu0 M4U_PORT_L4_VDEC_VLD_EXT>,
> +             <&iommu0 M4U_PORT_L4_VDEC_VLD2_EXT>,
> +             <&iommu0 M4U_PORT_L4_VDEC_AVC_MV_EXT>,
> +             <&iommu0 M4U_PORT_L4_VDEC_RG_CTRL_DMA_EXT>;
> +        dma-ranges = <0x1 0x0 0x0 0x40000000 0x0 0xfff00000>;
> +        clocks = <&topckgen CLK_TOP_VDEC_SEL>,
> +             <&vdecsys CLK_VDEC_VDEC>,
> +             <&vdecsys CLK_VDEC_LAT>,
> +             <&vdecsys CLK_VDEC_LARB1>,
> +             <&topckgen CLK_TOP_MAINPLL_D4>;
> +        clock-names = "vdec-sel", "vdec-soc-vdec", "vdec-soc-lat",
> +              "vdec-vdec", "vdec-top";
> +        assigned-clocks = <&topckgen CLK_TOP_VDEC_SEL>;
> +        assigned-clock-parents = <&topckgen CLK_TOP_MAINPLL_D4>;
> +        power-domains = <&spm MT8192_POWER_DOMAIN_VDEC2>;
> +    };

I'm a bit late in the game, reviewing v5 only, but I'm wondering if
those IP cores need to be modelled in separate nodes. It would be much
easier, from a software point of view, to have a single node, with
multiple register ranges.

Are some of those IP cores used in different SoCs, combined in different
ways, that make a modular design better ?

-- 
Regards,

Laurent Pinchart

^ permalink raw reply	[flat|nested] 41+ messages in thread

* Re: [PATCH v5, 13/15] dt-bindings: media: mtk-vcodec: Adds decoder dt-bindings for mt8192
  2021-08-11 17:24   ` Rob Herring
@ 2021-08-17  3:38     ` yunfei.dong
  0 siblings, 0 replies; 41+ messages in thread
From: yunfei.dong @ 2021-08-17  3:38 UTC (permalink / raw)
  To: Rob Herring
  Cc: linux-mediatek, Alexandre Courbot, linux-kernel, Andrew-CT Chen,
	Tomasz Figa, srv_heupstream, devicetree, linux-arm-kernel,
	Fritz Koenig, Rob Herring, Project_Global_Chrome_Upstream_Group,
	Tzung-Bi Shih, Tiffany Lin, Hsin-Yi Wang, Matthias Brugger,
	George Sun, Mauro Carvalho Chehab, Hans Verkuil, Irui Wang,
	linux-media

Hi Rob,

Thanks for your detail suggestion.

For the header file(dt-bindings/clock/mt8192-clk.h) is included in:
https://patchwork.kernel.org/project/linux-mediatek/list/?series=511175

Need to depend on this patch, do you have any suggestion about how to
add it?

Thanks.

On Wed, 2021-08-11 at 11:24 -0600, Rob Herring wrote:
> On Wed, 11 Aug 2021 10:57:59 +0800, Yunfei Dong wrote:
> > Adds decoder dt-bindings for mt8192.
> > 
> > Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
> > ---
> > v5: no changes
> > 
> > This patch depends on "Mediatek MT8192 clock support"[1].
> > 
> > The definition of decoder clocks are in mt8192-clk.h, need to
> > include them in case of build fail [1].
> > 
> > [1]
> > https://patchwork.kernel.org/project/linux-mediatek/list/?series=511175
> > ---
> >  .../media/mediatek,vcodec-comp-decoder.yaml   | 172
> > ++++++++++++++++++
> >  1 file changed, 172 insertions(+)
> >  create mode 100644
> > Documentation/devicetree/bindings/media/mediatek,vcodec-comp-
> > decoder.yaml
> > 
> 
> My bot found errors running 'make DT_CHECKER_FLAGS=-m
> dt_binding_check'
> on your patch (DT_CHECKER_FLAGS is new in v5.13):
> 
> yamllint warnings/errors:
> 
> dtschema/dtc warnings/errors:
> ./Documentation/devicetree/bindings/media/mediatek,vcodec-comp-
> decoder.yaml: $id: relative path/filename doesn't match actual path
> or filename
> 	expected: 
> http://devicetree.org/schemas/media/mediatek,vcodec-comp-decoder.yaml#
> Documentation/devicetree/bindings/media/mediatek,vcodec-comp-
> decoder.example.dts:22:18: fatal error: dt-bindings/clock/mt8192-
> clk.h: No such file or directory
>    22 |         #include <dt-bindings/clock/mt8192-clk.h>
>       |                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
> compilation terminated.
> make[1]: *** [scripts/Makefile.lib:380:
> Documentation/devicetree/bindings/media/mediatek,vcodec-comp-
> decoder.example.dt.yaml] Error 1
> make[1]: *** Waiting for unfinished jobs....
> make: *** [Makefile:1419: dt_binding_check] Error 2
> 
> doc reference errors (make refcheckdocs):
> 
> See https://patchwork.ozlabs.org/patch/1515556
> 
> This check can fail if there are any dependencies. The base for a
> patch
> series is generally the most recent rc1.
> 
> If you already ran 'make dt_binding_check' and didn't see the above
> error(s), then make sure 'yamllint' is installed and dt-schema is up
> to
> date:
> 
> pip3 install dtschema --upgrade
> 
> Please check and re-submit.
> 

^ permalink raw reply	[flat|nested] 41+ messages in thread

* Re: [PATCH v5, 13/15] dt-bindings: media: mtk-vcodec: Adds decoder dt-bindings for mt8192
  2021-08-11 17:59   ` Laurent Pinchart
@ 2021-08-17  3:50     ` yunfei.dong
  2021-08-29 20:54       ` Ezequiel Garcia
  2021-08-29 20:50     ` Ezequiel Garcia
  1 sibling, 1 reply; 41+ messages in thread
From: yunfei.dong @ 2021-08-17  3:50 UTC (permalink / raw)
  To: Laurent Pinchart
  Cc: Alexandre Courbot, Hans Verkuil, Tzung-Bi Shih, Tiffany Lin,
	Andrew-CT Chen, Mauro Carvalho Chehab, Rob Herring,
	Matthias Brugger, Tomasz Figa, Hsin-Yi Wang, Fritz Koenig,
	Irui Wang, linux-media, devicetree, linux-kernel,
	linux-arm-kernel, srv_heupstream, linux-mediatek,
	Project_Global_Chrome_Upstream_Group, George Sun

Hi Laurent,

Thanks for your detail suggestion.

On Wed, 2021-08-11 at 20:59 +0300, Laurent Pinchart wrote:
> Hi Yunfei,
> 
> Thank you for the patch.
> 
> On Wed, Aug 11, 2021 at 10:57:59AM +0800, Yunfei Dong wrote:
> > Adds decoder dt-bindings for mt8192.
> > 
> > Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
> > ---
> > v5: no changes
> > 
> > This patch depends on "Mediatek MT8192 clock support"[1].
> > 
> > The definition of decoder clocks are in mt8192-clk.h, need to
> > include them in case of build fail [1].
> > 
> > [1]
> > https://patchwork.kernel.org/project/linux-mediatek/list/?series=511175
> > ---
> >  .../media/mediatek,vcodec-comp-decoder.yaml   | 172
> > ++++++++++++++++++
> >  1 file changed, 172 insertions(+)
> >  create mode 100644
> > Documentation/devicetree/bindings/media/mediatek,vcodec-comp-
> > decoder.yaml
> > 
> > diff --git
> > a/Documentation/devicetree/bindings/media/mediatek,vcodec-comp-
> > decoder.yaml
> > b/Documentation/devicetree/bindings/media/mediatek,vcodec-comp-
> > decoder.yaml
> > new file mode 100644
> > index 000000000000..083c89933917
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/media/mediatek,vcodec-comp-
> > decoder.yaml
> > @@ -0,0 +1,172 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: 
> > http://devicetree.org/schemas/iommu/mediatek,vcodec-comp-decoder.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Mediatek Video Decode Accelerator With Component
> > +
> > +maintainers:
> > +  - Yunfei Dong <yunfei.dong@mediatek.com>
> > +
> > +description: |+
> > +  Mediatek Video Decode is the video decode hardware present in
> > Mediatek
> > +  SoCs which supports high resolution decoding functionalities.
> > Required
> > +  master and component node.
> 
> This should explain how the three IP cores relate to each other.
> 
I will explain it in next patch.
> > +
> > +properties:
> > +  compatible:
> > +    oneOf:
> > +      - enum:
> > +          - mediatek,mt8192-vcodec-dec  # for lat hardware
> > +          - mediatek,mtk-vcodec-lat     # for core hardware
> > +          - mediatek,mtk-vcodec-core
> > +
> > +  reg:
> > +    maxItems: 1
> > +
> > +  interrupts:
> > +    maxItems: 1
> > +
> > +  clocks:
> > +    maxItems: 5
> > +
> > +  clock-names:
> > +    items:
> > +      - const: vdec-sel
> > +      - const: vdec-soc-vdec
> > +      - const: vdec-soc-lat
> > +      - const: vdec-vdec
> > +      - const: vdec-top
> > +
> > +  assigned-clocks: true
> > +
> > +  assigned-clock-parents: true
> > +
> > +  power-domains:
> > +    maxItems: 1
> > +
> > +  iommus:
> > +    minItems: 1
> > +    maxItems: 32
> > +    description: |
> > +      List of the hardware port in respective IOMMU block for
> > current Socs.
> > +      Refer to bindings/iommu/mediatek,iommu.yaml.
> > +
> > +  dma-ranges:
> > +    maxItems: 1
> > +    description: |
> > +      Describes the physical address space of IOMMU maps to
> > memory.
> > +
> > +  mediatek,scp:
> > +    $ref: /schemas/types.yaml#/definitions/phandle
> > +    maxItems: 1
> > +    description:
> > +      Describes point to scp.
> > +
> > +required:
> > +      - compatible
> > +      - reg
> > +      - iommus
> > +      - dma-ranges
> > +
> > +allOf:
> > +  - if: #master node
> > +      properties:
> > +        compatible:
> > +          contains:
> > +            enum:
> > +              - mediatek,mt8192-vcodec-dec  # for lat hardware
> > +
> > +    then:
> > +      required:
> > +        - mediatek,scp
> > +
> > +  - if: #component node
> > +      properties:
> > +        compatible:
> > +          contains:
> > +            enum:
> > +              - mediatek,mtk-vcodec-lat     # for core hardware
> > +              - mediatek,mtk-vcodec-core
> > +
> > +    then:
> > +      required:
> > +        - interrupts
> > +        - clocks
> > +        - clock-names
> > +        - assigned-clocks
> > +        - assigned-clock-parents
> > +        - power-domains
> > +
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > +  - |
> > +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> > +    #include <dt-bindings/memory/mt8192-larb-port.h>
> > +    #include <dt-bindings/interrupt-controller/irq.h>
> > +    #include <dt-bindings/clock/mt8192-clk.h>
> > +    #include <dt-bindings/power/mt8192-power.h>
> > +
> > +    vcodec_dec: vcodec_dec@16000000 {
> > +        compatible = "mediatek,mt8192-vcodec-dec";
> > +        reg = <0 0x16000000 0 0x1000>;		/* VDEC_SYS */
> > +        mediatek,scp = <&scp>;
> > +        iommus = <&iommu0 M4U_PORT_L4_VDEC_MC_EXT>;
> > +        dma-ranges = <0x1 0x0 0x0 0x40000000 0x0 0xfff00000>;
> > +    };
> > +
> > +    vcodec_lat: vcodec_lat@0x16010000 {
> > +        compatible = "mediatek,mtk-vcodec-lat";
> > +        reg = <0 0x16010000 0 0x800>;		/* VDEC_MISC */
> > +        interrupts = <GIC_SPI 426 IRQ_TYPE_LEVEL_HIGH 0>;
> > +        iommus = <&iommu0 M4U_PORT_L5_VDEC_LAT0_VLD_EXT>,
> > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_VLD2_EXT>,
> > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_AVC_MV_EXT>,
> > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_PRED_RD_EXT>,
> > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_TILE_EXT>,
> > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_WDMA_EXT>,
> > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_RG_CTRL_DMA_EXT>,
> > +             <&iommu0 M4U_PORT_L5_VDEC_UFO_ENC_EXT>;
> > +        dma-ranges = <0x1 0x0 0x0 0x40000000 0x0 0xfff00000>;
> > +        clocks = <&topckgen CLK_TOP_VDEC_SEL>,
> > +             <&vdecsys_soc CLK_VDEC_SOC_VDEC>,
> > +             <&vdecsys_soc CLK_VDEC_SOC_LAT>,
> > +             <&vdecsys_soc CLK_VDEC_SOC_LARB1>,
> > +             <&topckgen CLK_TOP_MAINPLL_D4>;
> > +        clock-names = "vdec-sel", "vdec-soc-vdec", "vdec-soc-lat",
> > +              "vdec-vdec", "vdec-top";
> > +        assigned-clocks = <&topckgen CLK_TOP_VDEC_SEL>;
> > +        assigned-clock-parents = <&topckgen CLK_TOP_MAINPLL_D4>;
> > +        power-domains = <&spm MT8192_POWER_DOMAIN_VDEC>;
> > +    };
> > +
> > +    vcodec_core: vcodec_core@0x16025000 {
> > +        compatible = "mediatek,mtk-vcodec-core";
> > +        reg = <0 0x16025000 0 0x1000>;		/*
> > VDEC_CORE_MISC */
> > +        interrupts = <GIC_SPI 425 IRQ_TYPE_LEVEL_HIGH 0>;
> > +        iommus = <&iommu0 M4U_PORT_L4_VDEC_MC_EXT>,
> > +             <&iommu0 M4U_PORT_L4_VDEC_UFO_EXT>,
> > +             <&iommu0 M4U_PORT_L4_VDEC_PP_EXT>,
> > +             <&iommu0 M4U_PORT_L4_VDEC_PRED_RD_EXT>,
> > +             <&iommu0 M4U_PORT_L4_VDEC_PRED_WR_EXT>,
> > +             <&iommu0 M4U_PORT_L4_VDEC_PPWRAP_EXT>,
> > +             <&iommu0 M4U_PORT_L4_VDEC_TILE_EXT>,
> > +             <&iommu0 M4U_PORT_L4_VDEC_VLD_EXT>,
> > +             <&iommu0 M4U_PORT_L4_VDEC_VLD2_EXT>,
> > +             <&iommu0 M4U_PORT_L4_VDEC_AVC_MV_EXT>,
> > +             <&iommu0 M4U_PORT_L4_VDEC_RG_CTRL_DMA_EXT>;
> > +        dma-ranges = <0x1 0x0 0x0 0x40000000 0x0 0xfff00000>;
> > +        clocks = <&topckgen CLK_TOP_VDEC_SEL>,
> > +             <&vdecsys CLK_VDEC_VDEC>,
> > +             <&vdecsys CLK_VDEC_LAT>,
> > +             <&vdecsys CLK_VDEC_LARB1>,
> > +             <&topckgen CLK_TOP_MAINPLL_D4>;
> > +        clock-names = "vdec-sel", "vdec-soc-vdec", "vdec-soc-lat",
> > +              "vdec-vdec", "vdec-top";
> > +        assigned-clocks = <&topckgen CLK_TOP_VDEC_SEL>;
> > +        assigned-clock-parents = <&topckgen CLK_TOP_MAINPLL_D4>;
> > +        power-domains = <&spm MT8192_POWER_DOMAIN_VDEC2>;
> > +    };
> 
> I'm a bit late in the game, reviewing v5 only, but I'm wondering if
> those IP cores need to be modelled in separate nodes. It would be
> much
> easier, from a software point of view, to have a single node, with
> multiple register ranges.
> 
> Are some of those IP cores used in different SoCs, combined in
> different
> ways, that make a modular design better ?
> 
Different platform has different hardware, for mt8192 only has three
nodes. but mt8195 will has five nodes. and the clk/power/irq/iommu are
different. It is not easy to manage all hardware at the same time in
one node, need to enable different hardware at the same time, the logic
will be very complex.
It is much easier to handle different hardware using component, enable
different hardware when we need it.



^ permalink raw reply	[flat|nested] 41+ messages in thread

* Re: [PATCH v5, 05/15] dt-bindings: media: mtk-vcodec: Separate video encoder and decoder dt-bindings
  2021-08-11  2:57 ` [PATCH v5, 05/15] dt-bindings: media: mtk-vcodec: Separate video encoder and decoder dt-bindings Yunfei Dong
@ 2021-08-17 20:33   ` Rob Herring
  0 siblings, 0 replies; 41+ messages in thread
From: Rob Herring @ 2021-08-17 20:33 UTC (permalink / raw)
  To: Yunfei Dong
  Cc: Tiffany Lin, Matthias Brugger, Rob Herring, Tomasz Figa,
	George Sun, Project_Global_Chrome_Upstream_Group,
	Alexandre Courbot, linux-arm-kernel, Andrew-CT Chen,
	linux-mediatek, Irui Wang, Hans Verkuil, Fritz Koenig,
	Hsin-Yi Wang, linux-media, devicetree, Mauro Carvalho Chehab,
	srv_heupstream, Tzung-Bi Shih, linux-kernel

On Wed, 11 Aug 2021 10:57:51 +0800, Yunfei Dong wrote:
> Decoder will use component framework to manage hardware, it is big
> difference with encoder.
> 
> Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
> ---
> v5: no changes
> ---
>  .../media/mediatek,vcodec-decoder.yaml        | 175 +++++++++++++++++
>  .../media/mediatek,vcodec-encoder.yaml        | 185 ++++++++++++++++++
>  .../bindings/media/mediatek-vcodec.txt        | 130 ------------
>  3 files changed, 360 insertions(+), 130 deletions(-)
>  create mode 100644 Documentation/devicetree/bindings/media/mediatek,vcodec-decoder.yaml
>  create mode 100644 Documentation/devicetree/bindings/media/mediatek,vcodec-encoder.yaml
>  delete mode 100644 Documentation/devicetree/bindings/media/mediatek-vcodec.txt
> 

Reviewed-by: Rob Herring <robh@kernel.org>

^ permalink raw reply	[flat|nested] 41+ messages in thread

* Re: [PATCH v5, 00/15] Using component framework to support multi hardware decode
  2021-08-11  2:57 [PATCH v5, 00/15] Using component framework to support multi hardware decode Yunfei Dong
                   ` (14 preceding siblings ...)
  2021-08-11  2:58 ` [PATCH v5, 15/15] media: mtk-vcodec: Use codec type to separate different hardware Yunfei Dong
@ 2021-08-18 14:11 ` Ezequiel Garcia
  2021-08-19  7:13   ` yunfei.dong
  2021-08-22 16:50   ` Daniel Vetter
  15 siblings, 2 replies; 41+ messages in thread
From: Ezequiel Garcia @ 2021-08-18 14:11 UTC (permalink / raw)
  To: Yunfei Dong, Daniel Vetter, dri-devel
  Cc: Alexandre Courbot, Hans Verkuil, Tzung-Bi Shih, Tiffany Lin,
	Andrew-CT Chen, Mauro Carvalho Chehab, Rob Herring,
	Matthias Brugger, Tomasz Figa, Hsin-Yi Wang, Fritz Koenig,
	Irui Wang, linux-media, devicetree, Linux Kernel Mailing List,
	linux-arm-kernel, srv_heupstream,
	moderated list:ARM/Mediatek SoC support,
	Project_Global_Chrome_Upstream_Group, George Sun

+danvet

Hi,

On Tue, 10 Aug 2021 at 23:58, Yunfei Dong <yunfei.dong@mediatek.com> wrote:
>
> This series adds support for multi hardware decode into mtk-vcodec, by first
> adding component framework to manage each hardware information: interrupt,
> clock, register bases and power. Secondly add core thread to deal with core
> hardware message, at the same time, add msg queue for different hardware
> share messages. Lastly, the architecture of different specs are not the same,
> using specs type to separate them.
>

I don't think it's a good idea to introduce the component API in the
media subsystem. It doesn't seem to be maintained, IRC there's not even
a maintainer for it, and it has some issues that were never addressed.

It would be really important to avoid it. Is it really needed in the
first place?

Thanks,
Ezequiel

^ permalink raw reply	[flat|nested] 41+ messages in thread

* Re: [PATCH v5, 00/15] Using component framework to support multi hardware decode
  2021-08-18 14:11 ` [PATCH v5, 00/15] Using component framework to support multi hardware decode Ezequiel Garcia
@ 2021-08-19  7:13   ` yunfei.dong
  2021-08-19 14:10     ` Ezequiel Garcia
  2021-08-22 16:50   ` Daniel Vetter
  1 sibling, 1 reply; 41+ messages in thread
From: yunfei.dong @ 2021-08-19  7:13 UTC (permalink / raw)
  To: Ezequiel Garcia, Daniel Vetter, dri-devel
  Cc: Alexandre Courbot, Hans Verkuil, Tzung-Bi Shih, Tiffany Lin,
	Andrew-CT Chen, Mauro Carvalho Chehab, Rob Herring,
	Matthias Brugger, Tomasz Figa, Hsin-Yi Wang, Fritz Koenig,
	Irui Wang, linux-media, devicetree, Linux Kernel Mailing List,
	linux-arm-kernel, srv_heupstream,
	moderated list:ARM/Mediatek SoC support,
	Project_Global_Chrome_Upstream_Group, George Sun

Hi Ezequiel,

Thanks for your suggestion.

On Wed, 2021-08-18 at 11:11 -0300, Ezequiel Garcia wrote:
> +danvet
> 
> Hi,
> 
> On Tue, 10 Aug 2021 at 23:58, Yunfei Dong <yunfei.dong@mediatek.com>
> wrote:
> > 
> > This series adds support for multi hardware decode into mtk-vcodec, 
> > by first
> > adding component framework to manage each hardware information:
> > interrupt,
> > clock, register bases and power. Secondly add core thread to deal
> > with core
> > hardware message, at the same time, add msg queue for different
> > hardware
> > share messages. Lastly, the architecture of different specs are not
> > the same,
> > using specs type to separate them.
> > 
> 
> I don't think it's a good idea to introduce the component API in the
> media subsystem. It doesn't seem to be maintained, IRC there's not
> even
> a maintainer for it, and it has some issues that were never
> addressed.
> 
> It would be really important to avoid it. Is it really needed in the
> first place?
> 
> Thanks,
> Ezequiel

For there are many hardware need to use, mt8192 is three and mt8195 is
five. Maybe need more to be used in the feature.

Each hardware has independent clk/power/iommu port/irq.
Use component interface in prob to get each component's information.
Just enable the hardware when need to use it, very convenient and
simple.

I found that there are many modules use component to manage hardware
information, such as iommu and drm etc.

Do you have any other suggestion for this architecture?

Thanks
Yunfei Dong


^ permalink raw reply	[flat|nested] 41+ messages in thread

* Re: [PATCH v5, 00/15] Using component framework to support multi hardware decode
  2021-08-19  7:13   ` yunfei.dong
@ 2021-08-19 14:10     ` Ezequiel Garcia
  2021-08-20  7:59       ` yunfei.dong
  0 siblings, 1 reply; 41+ messages in thread
From: Ezequiel Garcia @ 2021-08-19 14:10 UTC (permalink / raw)
  To: yunfei.dong
  Cc: Daniel Vetter, dri-devel, Alexandre Courbot, Hans Verkuil,
	Tzung-Bi Shih, Tiffany Lin, Andrew-CT Chen,
	Mauro Carvalho Chehab, Rob Herring, Matthias Brugger,
	Tomasz Figa, Hsin-Yi Wang, Fritz Koenig, Irui Wang, linux-media,
	devicetree, Linux Kernel Mailing List, linux-arm-kernel,
	srv_heupstream, moderated list:ARM/Mediatek SoC support,
	Project_Global_Chrome_Upstream_Group, George Sun

On Thu, 19 Aug 2021 at 04:13, yunfei.dong@mediatek.com
<yunfei.dong@mediatek.com> wrote:
>
> Hi Ezequiel,
>
> Thanks for your suggestion.
>
> On Wed, 2021-08-18 at 11:11 -0300, Ezequiel Garcia wrote:
> > +danvet
> >
> > Hi,
> >
> > On Tue, 10 Aug 2021 at 23:58, Yunfei Dong <yunfei.dong@mediatek.com>
> > wrote:
> > >
> > > This series adds support for multi hardware decode into mtk-vcodec,
> > > by first
> > > adding component framework to manage each hardware information:
> > > interrupt,
> > > clock, register bases and power. Secondly add core thread to deal
> > > with core
> > > hardware message, at the same time, add msg queue for different
> > > hardware
> > > share messages. Lastly, the architecture of different specs are not
> > > the same,
> > > using specs type to separate them.
> > >
> >
> > I don't think it's a good idea to introduce the component API in the
> > media subsystem. It doesn't seem to be maintained, IRC there's not
> > even
> > a maintainer for it, and it has some issues that were never
> > addressed.
> >
> > It would be really important to avoid it. Is it really needed in the
> > first place?
> >
> > Thanks,
> > Ezequiel
>
> For there are many hardware need to use, mt8192 is three and mt8195 is
> five. Maybe need more to be used in the feature.
>
> Each hardware has independent clk/power/iommu port/irq.
> Use component interface in prob to get each component's information.
> Just enable the hardware when need to use it, very convenient and
> simple.
>
> I found that there are many modules use component to manage hardware
> information, such as iommu and drm etc.
>

Many drivers support multiple hardware variants, where each variant
has a different number of clocks or interrupts, see for instance
struct hantro_variant which allows to expose different codec cores,
some having both decoder/encoder, and some having just a decoder.

The component API is mostly used by DRM to aggregate independent
subdevices (called components) into an aggregated driver.

For instance, a DRM driver needs to glue together the HDMI, MIPI,
and plany controller, or any other hardware arrangement where
devices can be described independently.

The component API may look simple but has some issues, it's not easy
to debug, and can cause troubles if not used as expected [1].
It's worth making sure you actually need a framework
to glue different devices together.

> Do you have any other suggestion for this architecture?
>

Looking at the different patchsets that are posted, it's not clear
to me what exactly are the different architectures that you intend
to support, can you some documentation which clarifies that?

Thanks,
Ezequiel

[1] https://patchwork.kernel.org/project/linux-rockchip/cover/20200120170602.3832-1-ezequiel@collabora.com/

^ permalink raw reply	[flat|nested] 41+ messages in thread

* Re: [PATCH v5, 01/15] media: mtk-vcodec: Get numbers of register bases from DT
  2021-08-11  2:57 ` [PATCH v5, 01/15] media: mtk-vcodec: Get numbers of register bases from DT Yunfei Dong
@ 2021-08-20  3:29   ` Tzung-Bi Shih
  0 siblings, 0 replies; 41+ messages in thread
From: Tzung-Bi Shih @ 2021-08-20  3:29 UTC (permalink / raw)
  To: Yunfei Dong
  Cc: Alexandre Courbot, Hans Verkuil, Tzung-Bi Shih, Tiffany Lin,
	Andrew-CT Chen, Mauro Carvalho Chehab, Rob Herring,
	Matthias Brugger, Tomasz Figa, Hsin-Yi Wang, Fritz Koenig,
	Irui Wang, linux-media, devicetree, linux-kernel,
	linux-arm-kernel, srv_heupstream, linux-mediatek,
	Project_Global_Chrome_Upstream_Group, George Sun

On Wed, Aug 11, 2021 at 10:57:47AM +0800, Yunfei Dong wrote:
> Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
Reviewed-by: Tzung-Bi Shih <tzungbi@google.com>

^ permalink raw reply	[flat|nested] 41+ messages in thread

* Re: [PATCH v5, 00/15] Using component framework to support multi hardware decode
  2021-08-19 14:10     ` Ezequiel Garcia
@ 2021-08-20  7:59       ` yunfei.dong
  2021-08-22 14:32         ` Ezequiel Garcia
  0 siblings, 1 reply; 41+ messages in thread
From: yunfei.dong @ 2021-08-20  7:59 UTC (permalink / raw)
  To: Ezequiel Garcia
  Cc: Daniel Vetter, dri-devel, Alexandre Courbot, Hans Verkuil,
	Tzung-Bi Shih, Tiffany Lin, Andrew-CT Chen,
	Mauro Carvalho Chehab, Rob Herring, Matthias Brugger,
	Tomasz Figa, Hsin-Yi Wang, Fritz Koenig, Irui Wang, linux-media,
	devicetree, Linux Kernel Mailing List, linux-arm-kernel,
	srv_heupstream, moderated list:ARM/Mediatek SoC support,
	Project_Global_Chrome_Upstream_Group, George Sun

Hi Ezequiel,

Thanks for your detail feedback. 

On Thu, 2021-08-19 at 11:10 -0300, Ezequiel Garcia wrote:
> On Thu, 19 Aug 2021 at 04:13, yunfei.dong@mediatek.com
> <yunfei.dong@mediatek.com> wrote:
> >
> > Hi Ezequiel,
> >
> > Thanks for your suggestion.
> >
> > On Wed, 2021-08-18 at 11:11 -0300, Ezequiel Garcia wrote:
> > > +danvet
> > >
> > > Hi,
> > >
> > > On Tue, 10 Aug 2021 at 23:58, Yunfei Dong <yunfei.dong@mediatek.com>
> > > wrote:
> > > >
> > > > This series adds support for multi hardware decode into mtk-vcodec,
> > > > by first
> > > > adding component framework to manage each hardware information:
> > > > interrupt,
> > > > clock, register bases and power. Secondly add core thread to deal
> > > > with core
> > > > hardware message, at the same time, add msg queue for different
> > > > hardware
> > > > share messages. Lastly, the architecture of different specs are not
> > > > the same,
> > > > using specs type to separate them.
> > > >
> > >
> > > I don't think it's a good idea to introduce the component API in the
> > > media subsystem. It doesn't seem to be maintained, IRC there's not
> > > even
> > > a maintainer for it, and it has some issues that were never
> > > addressed.
> > >
> > > It would be really important to avoid it. Is it really needed in the
> > > first place?
> > >
> > > Thanks,
> > > Ezequiel
> >
> > For there are many hardware need to use, mt8192 is three and mt8195 is
> > five. Maybe need more to be used in the feature.
> >
> > Each hardware has independent clk/power/iommu port/irq.
> > Use component interface in prob to get each component's information.
> > Just enable the hardware when need to use it, very convenient and
> > simple.
> >
> > I found that there are many modules use component to manage hardware
> > information, such as iommu and drm etc.
> >
> 
> Many drivers support multiple hardware variants, where each variant
> has a different number of clocks or interrupts, see for instance
> struct hantro_variant which allows to expose different codec cores,
> some having both decoder/encoder, and some having just a decoder.
> 
> The component API is mostly used by DRM to aggregate independent
> subdevices (called components) into an aggregated driver.
> 
> For instance, a DRM driver needs to glue together the HDMI, MIPI,
> and plany controller, or any other hardware arrangement where
> devices can be described independently.
> 
The usage scenario is very similar with drm and iommu, So decide to use
component framework.
Decode has three/five or more hardwares, these hardware are independent.
For mt8183 just need core hardware to decode, but mt8192 has lat,soc and
core hardware to decode. When lat need to use, just enable lat hardware,
core is the same.And mt8195 will has two cores, each core can work well
independent.

For each component device just used to open their power/clk/iommu
port/irq when master need to enable it. The main logic is in master
device.

> The component API may look simple but has some issues, it's not easy
> to debug, and can cause troubles if not used as expected [1].
> It's worth making sure you actually need a framework
> to glue different devices together.
> 
Each hardware has its index, master can get hardware information
according these index, looks not complex. What do you mean about not
easy to debug?

> > Do you have any other suggestion for this architecture?
> >
> 
> Looking at the different patchsets that are posted, it's not clear
> to me what exactly are the different architectures that you intend
> to support, can you some documentation which clarifies that?
> 
Have five hardwares lat,soc,core0,core1 and main. Lat thread can use lat
soc and main, core thread can use soc,lat, core0 and core1. Core thread
can be used or not for different project. Also Need to use these
hardware dynamic at the same time. So I use component framework, just
need to know the used  hardware index according to different
project.Need not to do complex logic to manage these hardwares.


> Thanks,
> Ezequiel
> 
> [1] https://patchwork.kernel.org/project/linux-rockchip/cover/20200120170602.3832-1-ezequiel@collabora.com/


Thanks,
Yunfei Dong





^ permalink raw reply	[flat|nested] 41+ messages in thread

* Re: [PATCH v5, 00/15] Using component framework to support multi hardware decode
  2021-08-20  7:59       ` yunfei.dong
@ 2021-08-22 14:32         ` Ezequiel Garcia
  2021-08-24 10:21           ` yunfei.dong
  0 siblings, 1 reply; 41+ messages in thread
From: Ezequiel Garcia @ 2021-08-22 14:32 UTC (permalink / raw)
  To: yunfei.dong
  Cc: Daniel Vetter, dri-devel, Alexandre Courbot, Hans Verkuil,
	Tzung-Bi Shih, Tiffany Lin, Andrew-CT Chen,
	Mauro Carvalho Chehab, Rob Herring, Matthias Brugger,
	Tomasz Figa, Hsin-Yi Wang, Fritz Koenig, Irui Wang, linux-media,
	devicetree, Linux Kernel Mailing List, linux-arm-kernel,
	srv_heupstream, moderated list:ARM/Mediatek SoC support,
	Project_Global_Chrome_Upstream_Group, George Sun

On Fri, 20 Aug 2021 at 04:59, yunfei.dong@mediatek.com
<yunfei.dong@mediatek.com> wrote:
>
> Hi Ezequiel,
>
> Thanks for your detail feedback.
>
> On Thu, 2021-08-19 at 11:10 -0300, Ezequiel Garcia wrote:
> > On Thu, 19 Aug 2021 at 04:13, yunfei.dong@mediatek.com
> > <yunfei.dong@mediatek.com> wrote:
> > >
> > > Hi Ezequiel,
> > >
> > > Thanks for your suggestion.
> > >
> > > On Wed, 2021-08-18 at 11:11 -0300, Ezequiel Garcia wrote:
> > > > +danvet
> > > >
> > > > Hi,
> > > >
> > > > On Tue, 10 Aug 2021 at 23:58, Yunfei Dong <yunfei.dong@mediatek.com>
> > > > wrote:
> > > > >
> > > > > This series adds support for multi hardware decode into mtk-vcodec,
> > > > > by first
> > > > > adding component framework to manage each hardware information:
> > > > > interrupt,
> > > > > clock, register bases and power. Secondly add core thread to deal
> > > > > with core
> > > > > hardware message, at the same time, add msg queue for different
> > > > > hardware
> > > > > share messages. Lastly, the architecture of different specs are not
> > > > > the same,
> > > > > using specs type to separate them.
> > > > >
> > > >
> > > > I don't think it's a good idea to introduce the component API in the
> > > > media subsystem. It doesn't seem to be maintained, IRC there's not
> > > > even
> > > > a maintainer for it, and it has some issues that were never
> > > > addressed.
> > > >
> > > > It would be really important to avoid it. Is it really needed in the
> > > > first place?
> > > >
> > > > Thanks,
> > > > Ezequiel
> > >
> > > For there are many hardware need to use, mt8192 is three and mt8195 is
> > > five. Maybe need more to be used in the feature.
> > >
> > > Each hardware has independent clk/power/iommu port/irq.
> > > Use component interface in prob to get each component's information.
> > > Just enable the hardware when need to use it, very convenient and
> > > simple.
> > >
> > > I found that there are many modules use component to manage hardware
> > > information, such as iommu and drm etc.
> > >
> >
> > Many drivers support multiple hardware variants, where each variant
> > has a different number of clocks or interrupts, see for instance
> > struct hantro_variant which allows to expose different codec cores,
> > some having both decoder/encoder, and some having just a decoder.
> >
> > The component API is mostly used by DRM to aggregate independent
> > subdevices (called components) into an aggregated driver.
> >
> > For instance, a DRM driver needs to glue together the HDMI, MIPI,
> > and plany controller, or any other hardware arrangement where
> > devices can be described independently.
> >
> The usage scenario is very similar with drm and iommu, So decide to use
> component framework.
> Decode has three/five or more hardwares, these hardware are independent.
> For mt8183 just need core hardware to decode, but mt8192 has lat,soc and
> core hardware to decode. When lat need to use, just enable lat hardware,
> core is the same.And mt8195 will has two cores, each core can work well
> independent.
>
> For each component device just used to open their power/clk/iommu
> port/irq when master need to enable it. The main logic is in master
> device.
>
> > The component API may look simple but has some issues, it's not easy
> > to debug, and can cause troubles if not used as expected [1].
> > It's worth making sure you actually need a framework
> > to glue different devices together.
> >
> Each hardware has its index, master can get hardware information
> according these index, looks not complex. What do you mean about not
> easy to debug?
>
> > > Do you have any other suggestion for this architecture?
> > >
> >
> > Looking at the different patchsets that are posted, it's not clear
> > to me what exactly are the different architectures that you intend
> > to support, can you some documentation which clarifies that?
> >
> Have five hardwares lat,soc,core0,core1 and main. Lat thread can use lat
> soc and main, core thread can use soc,lat, core0 and core1. Core thread
> can be used or not for different project.

Can you explain what are these lat,soc and core threads for?

> Also Need to use these
> hardware dynamic at the same time. So I use component framework, just
> need to know the used  hardware index according to different
> project.Need not to do complex logic to manage these hardwares.
>

I am not thrilled to see the component framework introduced to the
media subsystem. Like I said, it has no clear maintainer, and it's not
easy to use.

The media subsystem has some support which AFAIK does the same thing,
see v4l2-async, which is maintained by media people.

Please push a branch based on media/master containing these changes.
I see there are other patch series for this device, but it's hard to track
which goes first, etc.

Thanks,
Ezequiel

^ permalink raw reply	[flat|nested] 41+ messages in thread

* Re: [PATCH v5, 00/15] Using component framework to support multi hardware decode
  2021-08-18 14:11 ` [PATCH v5, 00/15] Using component framework to support multi hardware decode Ezequiel Garcia
  2021-08-19  7:13   ` yunfei.dong
@ 2021-08-22 16:50   ` Daniel Vetter
  2021-08-22 17:57     ` Ezequiel Garcia
  1 sibling, 1 reply; 41+ messages in thread
From: Daniel Vetter @ 2021-08-22 16:50 UTC (permalink / raw)
  To: Ezequiel Garcia
  Cc: Yunfei Dong, dri-devel, Alexandre Courbot, Hans Verkuil,
	Tzung-Bi Shih, Tiffany Lin, Andrew-CT Chen,
	Mauro Carvalho Chehab, Rob Herring, Matthias Brugger,
	Tomasz Figa, Hsin-Yi Wang, Fritz Koenig, Irui Wang, linux-media,
	devicetree, Linux Kernel Mailing List, linux-arm-kernel,
	srv_heupstream, moderated list:ARM/Mediatek SoC support,
	Project_Global_Chrome_Upstream_Group, George Sun

On Wed, Aug 18, 2021 at 4:12 PM Ezequiel Garcia
<ezequiel@vanguardiasur.com.ar> wrote:
>
> +danvet
>
> Hi,
>
> On Tue, 10 Aug 2021 at 23:58, Yunfei Dong <yunfei.dong@mediatek.com> wrote:
> >
> > This series adds support for multi hardware decode into mtk-vcodec, by first
> > adding component framework to manage each hardware information: interrupt,
> > clock, register bases and power. Secondly add core thread to deal with core
> > hardware message, at the same time, add msg queue for different hardware
> > share messages. Lastly, the architecture of different specs are not the same,
> > using specs type to separate them.
> >
>
> I don't think it's a good idea to introduce the component API in the
> media subsystem. It doesn't seem to be maintained, IRC there's not even
> a maintainer for it, and it has some issues that were never addressed.

Defacto dri-devel folks are maintainer component.c, but also I'm not
aware of anything missing there?

There has been discussions that in various drm subsystems like
drm_bridge or drm_panel a few things are missing, which prevent
drivers from moving _away_ from component.c to the more specific
solutions for panel/bridges. But nothing that's preventing them from
using component.c itself.

I'm happy to merge a MAINTAINERS patch to clarify the situation if
that's needed.
-Daniel

> It would be really important to avoid it. Is it really needed in the
> first place?
>
> Thanks,
> Ezequiel



-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch

^ permalink raw reply	[flat|nested] 41+ messages in thread

* Re: [PATCH v5, 00/15] Using component framework to support multi hardware decode
  2021-08-22 16:50   ` Daniel Vetter
@ 2021-08-22 17:57     ` Ezequiel Garcia
  2021-08-26  9:14       ` Daniel Vetter
  0 siblings, 1 reply; 41+ messages in thread
From: Ezequiel Garcia @ 2021-08-22 17:57 UTC (permalink / raw)
  To: Daniel Vetter
  Cc: Yunfei Dong, dri-devel, Alexandre Courbot, Hans Verkuil,
	Tzung-Bi Shih, Tiffany Lin, Andrew-CT Chen,
	Mauro Carvalho Chehab, Rob Herring, Matthias Brugger,
	Tomasz Figa, Hsin-Yi Wang, Fritz Koenig, Irui Wang, linux-media,
	devicetree, Linux Kernel Mailing List, linux-arm-kernel,
	srv_heupstream, moderated list:ARM/Mediatek SoC support,
	Project_Global_Chrome_Upstream_Group, George Sun

On Sun, 22 Aug 2021 at 13:50, Daniel Vetter <daniel@ffwll.ch> wrote:
>
> On Wed, Aug 18, 2021 at 4:12 PM Ezequiel Garcia
> <ezequiel@vanguardiasur.com.ar> wrote:
> >
> > +danvet
> >
> > Hi,
> >
> > On Tue, 10 Aug 2021 at 23:58, Yunfei Dong <yunfei.dong@mediatek.com> wrote:
> > >
> > > This series adds support for multi hardware decode into mtk-vcodec, by first
> > > adding component framework to manage each hardware information: interrupt,
> > > clock, register bases and power. Secondly add core thread to deal with core
> > > hardware message, at the same time, add msg queue for different hardware
> > > share messages. Lastly, the architecture of different specs are not the same,
> > > using specs type to separate them.
> > >
> >
> > I don't think it's a good idea to introduce the component API in the
> > media subsystem. It doesn't seem to be maintained, IRC there's not even
> > a maintainer for it, and it has some issues that were never addressed.
>
> Defacto dri-devel folks are maintainer component.c, but also I'm not
> aware of anything missing there?
>

A while ago, I tried to fix a crash in the Rockchip DRM driver
(I was then told there can be similar issues on the IMX driver too,
but I forgot the details of that).

I sent a patchset trying to address it and got total silence back.
Although you could argue the issue is in how drivers use the component
API, AFAICR the abuse is spreaded across a few drivers, so it felt
more reasonable to improve the component API itself, instead of changing
all the drivers.

See below:

https://patchwork.kernel.org/project/linux-rockchip/cover/20200120170602.3832-1-ezequiel@collabora.com/

> There has been discussions that in various drm subsystems like
> drm_bridge or drm_panel a few things are missing, which prevent
> drivers from moving _away_ from component.c to the more specific
> solutions for panel/bridges. But nothing that's preventing them from
> using component.c itself.
>
> I'm happy to merge a MAINTAINERS patch to clarify the situation if
> that's needed.

Indeed, that would be good.

Thanks,
Ezequiel

^ permalink raw reply	[flat|nested] 41+ messages in thread

* Re: [PATCH v5, 00/15] Using component framework to support multi hardware decode
  2021-08-22 14:32         ` Ezequiel Garcia
@ 2021-08-24 10:21           ` yunfei.dong
  2021-08-25  5:48             ` yunfei.dong
  0 siblings, 1 reply; 41+ messages in thread
From: yunfei.dong @ 2021-08-24 10:21 UTC (permalink / raw)
  To: Ezequiel Garcia
  Cc: Daniel Vetter, dri-devel, Alexandre Courbot, Hans Verkuil,
	Tzung-Bi Shih, Tiffany Lin, Andrew-CT Chen,
	Mauro Carvalho Chehab, Rob Herring, Matthias Brugger,
	Tomasz Figa, Hsin-Yi Wang, Fritz Koenig, Irui Wang, linux-media,
	devicetree, Linux Kernel Mailing List, linux-arm-kernel,
	srv_heupstream, moderated list:ARM/Mediatek SoC support,
	Project_Global_Chrome_Upstream_Group, George Sun

Hi Ezequiel,

Thanks for your suggestion.

On Sun, 2021-08-22 at 11:32 -0300, Ezequiel Garcia wrote:
> On Fri, 20 Aug 2021 at 04:59, yunfei.dong@mediatek.com
> <yunfei.dong@mediatek.com> wrote:
> > 
> > Hi Ezequiel,
> > 
> > Thanks for your detail feedback.
> > 
> > On Thu, 2021-08-19 at 11:10 -0300, Ezequiel Garcia wrote:
> > > On Thu, 19 Aug 2021 at 04:13, yunfei.dong@mediatek.com
> > > <yunfei.dong@mediatek.com> wrote:
> > > > 
> > > > Hi Ezequiel,
> > > > 
> > > > Thanks for your suggestion.
> > > > 
> > > > On Wed, 2021-08-18 at 11:11 -0300, Ezequiel Garcia wrote:
> > > > > +danvet
> > > > > 
> > > > > Hi,
> > > > > 
> > > > > On Tue, 10 Aug 2021 at 23:58, Yunfei Dong <
> > > > > yunfei.dong@mediatek.com>
> > > > > wrote:
> > > > > > 
> > > > > > This series adds support for multi hardware decode into
> > > > > > mtk-vcodec,
> > > > > > by first
> > > > > > adding component framework to manage each hardware
> > > > > > information:
> > > > > > interrupt,
> > > > > > clock, register bases and power. Secondly add core thread
> > > > > > to deal
> > > > > > with core
> > > > > > hardware message, at the same time, add msg queue for
> > > > > > different
> > > > > > hardware
> > > > > > share messages. Lastly, the architecture of different specs
> > > > > > are not
> > > > > > the same,
> > > > > > using specs type to separate them.
> > > > > > 
> > > > > 
> > > > > I don't think it's a good idea to introduce the component API
> > > > > in the
> > > > > media subsystem. It doesn't seem to be maintained, IRC
> > > > > there's not
> > > > > even
> > > > > a maintainer for it, and it has some issues that were never
> > > > > addressed.
> > > > > 
> > > > > It would be really important to avoid it. Is it really needed
> > > > > in the
> > > > > first place?
> > > > > 
> > > > > Thanks,
> > > > > Ezequiel
> > > > 
> > > > For there are many hardware need to use, mt8192 is three and
> > > > mt8195 is
> > > > five. Maybe need more to be used in the feature.
> > > > 
> > > > Each hardware has independent clk/power/iommu port/irq.
> > > > Use component interface in prob to get each component's
> > > > information.
> > > > Just enable the hardware when need to use it, very convenient
> > > > and
> > > > simple.
> > > > 
> > > > I found that there are many modules use component to manage
> > > > hardware
> > > > information, such as iommu and drm etc.
> > > > 
> > > 
> > > Many drivers support multiple hardware variants, where each
> > > variant
> > > has a different number of clocks or interrupts, see for instance
> > > struct hantro_variant which allows to expose different codec
> > > cores,
> > > some having both decoder/encoder, and some having just a decoder.
> > > 
> > > The component API is mostly used by DRM to aggregate independent
> > > subdevices (called components) into an aggregated driver.
> > > 
> > > For instance, a DRM driver needs to glue together the HDMI, MIPI,
> > > and plany controller, or any other hardware arrangement where
> > > devices can be described independently.
> > > 
> > 
> > The usage scenario is very similar with drm and iommu, So decide to
> > use
> > component framework.
> > Decode has three/five or more hardwares, these hardware are
> > independent.
> > For mt8183 just need core hardware to decode, but mt8192 has
> > lat,soc and
> > core hardware to decode. When lat need to use, just enable lat
> > hardware,
> > core is the same.And mt8195 will has two cores, each core can work
> > well
> > independent.
> > 
> > For each component device just used to open their power/clk/iommu
> > port/irq when master need to enable it. The main logic is in master
> > device.
> > 
> > > The component API may look simple but has some issues, it's not
> > > easy
> > > to debug, and can cause troubles if not used as expected [1].
> > > It's worth making sure you actually need a framework
> > > to glue different devices together.
> > > 
> > 
> > Each hardware has its index, master can get hardware information
> > according these index, looks not complex. What do you mean about
> > not
> > easy to debug?
> > 
> > > > Do you have any other suggestion for this architecture?
> > > > 
> > > 
> > > Looking at the different patchsets that are posted, it's not
> > > clear
> > > to me what exactly are the different architectures that you
> > > intend
> > > to support, can you some documentation which clarifies that?
> > > 
> > 
> > Have five hardwares lat,soc,core0,core1 and main. Lat thread can
> > use lat
> > soc and main, core thread can use soc,lat, core0 and core1. Core
> > thread
> > can be used or not for different project.
> 
> Can you explain what are these lat,soc and core threads for?
> 
You can regards lat,soc and core as hardware, each hardware can work
independent. Lat and core threads used to control hardware to decode.
> > Also Need to use these
> > hardware dynamic at the same time. So I use component framework,
> > just
> > need to know the used  hardware index according to different
> > project.Need not to do complex logic to manage these hardwares.
> > 
> 
> I am not thrilled to see the component framework introduced to the
> media subsystem. Like I said, it has no clear maintainer, and it's
> not
> easy to use.
> 
How do you think about Deniel Vetter's mail ? It looks that there are
maintainer for it.
> The media subsystem has some support which AFAIK does the same thing,
> see v4l2-async, which is maintained by media people.
> 
If component can be used, I prefer to use it. At the other hand, I will
try to use these method as compared.
> Please push a branch based on media/master containing these changes.
> I see there are other patch series for this device, but it's hard to
> track
> which goes first, etc.
> 
I need time to push a branch, or you can get the latest kernel and git
am these patches, maybe much quicker.
> Thanks,
> Ezequiel

Thanks,
Yunfei Dong

^ permalink raw reply	[flat|nested] 41+ messages in thread

* Re: [PATCH v5, 00/15] Using component framework to support multi hardware decode
  2021-08-24 10:21           ` yunfei.dong
@ 2021-08-25  5:48             ` yunfei.dong
  0 siblings, 0 replies; 41+ messages in thread
From: yunfei.dong @ 2021-08-25  5:48 UTC (permalink / raw)
  To: Ezequiel Garcia
  Cc: Daniel Vetter, dri-devel, Alexandre Courbot, Hans Verkuil,
	Tzung-Bi Shih, Tiffany Lin, Andrew-CT Chen,
	Mauro Carvalho Chehab, Rob Herring, Matthias Brugger,
	Tomasz Figa, Hsin-Yi Wang, Fritz Koenig, Irui Wang, linux-media,
	devicetree, Linux Kernel Mailing List, linux-arm-kernel,
	srv_heupstream, moderated list:ARM/Mediatek SoC support,
	Project_Global_Chrome_Upstream_Group, George Sun

Hi Ezequiel,

You can get the dtsi information from patch 13, it is decoder yaml file
about component architecture:

[PATCH v4, 13/15] dt-bindings: media: mtk-vcodec: Adds decoder dt-
bindings for mt8192

Thanks
Yunfei Dong

On Tue, 2021-08-24 at 18:21 +0800, yunfei.dong@mediatek.com wrote:
> Hi Ezequiel,
> 
> Thanks for your suggestion.
> 
> On Sun, 2021-08-22 at 11:32 -0300, Ezequiel Garcia wrote:
> > On Fri, 20 Aug 2021 at 04:59, yunfei.dong@mediatek.com
> > <yunfei.dong@mediatek.com> wrote:
> > > 
> > > Hi Ezequiel,
> > > 
> > > Thanks for your detail feedback.
> > > 
> > > On Thu, 2021-08-19 at 11:10 -0300, Ezequiel Garcia wrote:
> > > > On Thu, 19 Aug 2021 at 04:13, yunfei.dong@mediatek.com
> > > > <yunfei.dong@mediatek.com> wrote:
> > > > > 
> > > > > Hi Ezequiel,
> > > > > 
> > > > > Thanks for your suggestion.
> > > > > 
> > > > > On Wed, 2021-08-18 at 11:11 -0300, Ezequiel Garcia wrote:
> > > > > > +danvet
> > > > > > 
> > > > > > Hi,
> > > > > > 
> > > > > > On Tue, 10 Aug 2021 at 23:58, Yunfei Dong <
> > > > > > yunfei.dong@mediatek.com>
> > > > > > wrote:
> > > > > > > 
> > > > > > > This series adds support for multi hardware decode into
> > > > > > > mtk-vcodec,
> > > > > > > by first
> > > > > > > adding component framework to manage each hardware
> > > > > > > information:
> > > > > > > interrupt,
> > > > > > > clock, register bases and power. Secondly add core thread
> > > > > > > to deal
> > > > > > > with core
> > > > > > > hardware message, at the same time, add msg queue for
> > > > > > > different
> > > > > > > hardware
> > > > > > > share messages. Lastly, the architecture of different
> > > > > > > specs
> > > > > > > are not
> > > > > > > the same,
> > > > > > > using specs type to separate them.
> > > > > > > 
> > > > > > 
> > > > > > I don't think it's a good idea to introduce the component
> > > > > > API
> > > > > > in the
> > > > > > media subsystem. It doesn't seem to be maintained, IRC
> > > > > > there's not
> > > > > > even
> > > > > > a maintainer for it, and it has some issues that were never
> > > > > > addressed.
> > > > > > 
> > > > > > It would be really important to avoid it. Is it really
> > > > > > needed
> > > > > > in the
> > > > > > first place?
> > > > > > 
> > > > > > Thanks,
> > > > > > Ezequiel
> > > > > 
> > > > > For there are many hardware need to use, mt8192 is three and
> > > > > mt8195 is
> > > > > five. Maybe need more to be used in the feature.
> > > > > 
> > > > > Each hardware has independent clk/power/iommu port/irq.
> > > > > Use component interface in prob to get each component's
> > > > > information.
> > > > > Just enable the hardware when need to use it, very convenient
> > > > > and
> > > > > simple.
> > > > > 
> > > > > I found that there are many modules use component to manage
> > > > > hardware
> > > > > information, such as iommu and drm etc.
> > > > > 
> > > > 
> > > > Many drivers support multiple hardware variants, where each
> > > > variant
> > > > has a different number of clocks or interrupts, see for
> > > > instance
> > > > struct hantro_variant which allows to expose different codec
> > > > cores,
> > > > some having both decoder/encoder, and some having just a
> > > > decoder.
> > > > 
> > > > The component API is mostly used by DRM to aggregate
> > > > independent
> > > > subdevices (called components) into an aggregated driver.
> > > > 
> > > > For instance, a DRM driver needs to glue together the HDMI,
> > > > MIPI,
> > > > and plany controller, or any other hardware arrangement where
> > > > devices can be described independently.
> > > > 
> > > 
> > > The usage scenario is very similar with drm and iommu, So decide
> > > to
> > > use
> > > component framework.
> > > Decode has three/five or more hardwares, these hardware are
> > > independent.
> > > For mt8183 just need core hardware to decode, but mt8192 has
> > > lat,soc and
> > > core hardware to decode. When lat need to use, just enable lat
> > > hardware,
> > > core is the same.And mt8195 will has two cores, each core can
> > > work
> > > well
> > > independent.
> > > 
> > > For each component device just used to open their power/clk/iommu
> > > port/irq when master need to enable it. The main logic is in
> > > master
> > > device.
> > > 
> > > > The component API may look simple but has some issues, it's not
> > > > easy
> > > > to debug, and can cause troubles if not used as expected [1].
> > > > It's worth making sure you actually need a framework
> > > > to glue different devices together.
> > > > 
> > > 
> > > Each hardware has its index, master can get hardware information
> > > according these index, looks not complex. What do you mean about
> > > not
> > > easy to debug?
> > > 
> > > > > Do you have any other suggestion for this architecture?
> > > > > 
> > > > 
> > > > Looking at the different patchsets that are posted, it's not
> > > > clear
> > > > to me what exactly are the different architectures that you
> > > > intend
> > > > to support, can you some documentation which clarifies that?
> > > > 
> > > 
> > > Have five hardwares lat,soc,core0,core1 and main. Lat thread can
> > > use lat
> > > soc and main, core thread can use soc,lat, core0 and core1. Core
> > > thread
> > > can be used or not for different project.
> > 
> > Can you explain what are these lat,soc and core threads for?
> > 
> 
> You can regards lat,soc and core as hardware, each hardware can work
> independent. Lat and core threads used to control hardware to decode.
> > > Also Need to use these
> > > hardware dynamic at the same time. So I use component framework,
> > > just
> > > need to know the used  hardware index according to different
> > > project.Need not to do complex logic to manage these hardwares.
> > > 
> > 
> > I am not thrilled to see the component framework introduced to the
> > media subsystem. Like I said, it has no clear maintainer, and it's
> > not
> > easy to use.
> > 
> 
> How do you think about Deniel Vetter's mail ? It looks that there are
> maintainer for it.
> > The media subsystem has some support which AFAIK does the same
> > thing,
> > see v4l2-async, which is maintained by media people.
> > 
> 
> If component can be used, I prefer to use it. At the other hand, I
> will
> try to use these method as compared.
> > Please push a branch based on media/master containing these
> > changes.
> > I see there are other patch series for this device, but it's hard
> > to
> > track
> > which goes first, etc.
> > 
> 
> I need time to push a branch, or you can get the latest kernel and
> git
> am these patches, maybe much quicker.
> > Thanks,
> > Ezequiel
> 
> Thanks,
> Yunfei Dong

^ permalink raw reply	[flat|nested] 41+ messages in thread

* Re: [PATCH v5, 00/15] Using component framework to support multi hardware decode
  2021-08-22 17:57     ` Ezequiel Garcia
@ 2021-08-26  9:14       ` Daniel Vetter
  0 siblings, 0 replies; 41+ messages in thread
From: Daniel Vetter @ 2021-08-26  9:14 UTC (permalink / raw)
  To: Ezequiel Garcia
  Cc: Daniel Vetter, Yunfei Dong, dri-devel, Alexandre Courbot,
	Hans Verkuil, Tzung-Bi Shih, Tiffany Lin, Andrew-CT Chen,
	Mauro Carvalho Chehab, Rob Herring, Matthias Brugger,
	Tomasz Figa, Hsin-Yi Wang, Fritz Koenig, Irui Wang, linux-media,
	devicetree, Linux Kernel Mailing List, linux-arm-kernel,
	srv_heupstream, moderated list:ARM/Mediatek SoC support,
	Project_Global_Chrome_Upstream_Group, George Sun

On Sun, Aug 22, 2021 at 02:57:15PM -0300, Ezequiel Garcia wrote:
> On Sun, 22 Aug 2021 at 13:50, Daniel Vetter <daniel@ffwll.ch> wrote:
> >
> > On Wed, Aug 18, 2021 at 4:12 PM Ezequiel Garcia
> > <ezequiel@vanguardiasur.com.ar> wrote:
> > >
> > > +danvet
> > >
> > > Hi,
> > >
> > > On Tue, 10 Aug 2021 at 23:58, Yunfei Dong <yunfei.dong@mediatek.com> wrote:
> > > >
> > > > This series adds support for multi hardware decode into mtk-vcodec, by first
> > > > adding component framework to manage each hardware information: interrupt,
> > > > clock, register bases and power. Secondly add core thread to deal with core
> > > > hardware message, at the same time, add msg queue for different hardware
> > > > share messages. Lastly, the architecture of different specs are not the same,
> > > > using specs type to separate them.
> > > >
> > >
> > > I don't think it's a good idea to introduce the component API in the
> > > media subsystem. It doesn't seem to be maintained, IRC there's not even
> > > a maintainer for it, and it has some issues that were never addressed.
> >
> > Defacto dri-devel folks are maintainer component.c, but also I'm not
> > aware of anything missing there?
> >
> 
> A while ago, I tried to fix a crash in the Rockchip DRM driver
> (I was then told there can be similar issues on the IMX driver too,
> but I forgot the details of that).
> 
> I sent a patchset trying to address it and got total silence back.
> Although you could argue the issue is in how drivers use the component
> API, AFAICR the abuse is spreaded across a few drivers, so it felt
> more reasonable to improve the component API itself, instead of changing
> all the drivers.
> 
> See below:
> 
> https://patchwork.kernel.org/project/linux-rockchip/cover/20200120170602.3832-1-ezequiel@collabora.com/

Patches get lost on the mailing list, and rockchip is one of the lesser
maintained drivers. You need to ping this stuff.

For bridge/panel I still think we should work towards removing component.c
use from them.

> > There has been discussions that in various drm subsystems like
> > drm_bridge or drm_panel a few things are missing, which prevent
> > drivers from moving _away_ from component.c to the more specific
> > solutions for panel/bridges. But nothing that's preventing them from
> > using component.c itself.
> >
> > I'm happy to merge a MAINTAINERS patch to clarify the situation if
> > that's needed.
> 
> Indeed, that would be good.

Ok I'm going to type something.
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch

^ permalink raw reply	[flat|nested] 41+ messages in thread

* Re: [PATCH v5, 13/15] dt-bindings: media: mtk-vcodec: Adds decoder dt-bindings for mt8192
  2021-08-11 17:59   ` Laurent Pinchart
  2021-08-17  3:50     ` yunfei.dong
@ 2021-08-29 20:50     ` Ezequiel Garcia
  2021-08-30  6:07       ` yunfei.dong
  1 sibling, 1 reply; 41+ messages in thread
From: Ezequiel Garcia @ 2021-08-29 20:50 UTC (permalink / raw)
  To: Laurent Pinchart
  Cc: Yunfei Dong, Alexandre Courbot, Hans Verkuil, Tzung-Bi Shih,
	Tiffany Lin, Andrew-CT Chen, Mauro Carvalho Chehab, Rob Herring,
	Matthias Brugger, Tomasz Figa, Hsin-Yi Wang, Fritz Koenig,
	Irui Wang, linux-media, devicetree, Linux Kernel Mailing List,
	linux-arm-kernel, srv_heupstream,
	moderated list:ARM/Mediatek SoC support,
	Project_Global_Chrome_Upstream_Group, George Sun

On Wed, 11 Aug 2021 at 14:59, Laurent Pinchart
<laurent.pinchart@ideasonboard.com> wrote:
>
> Hi Yunfei,
>
> Thank you for the patch.
>
> On Wed, Aug 11, 2021 at 10:57:59AM +0800, Yunfei Dong wrote:
> > Adds decoder dt-bindings for mt8192.
> >
> > Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
> > ---
> > v5: no changes
> >
> > This patch depends on "Mediatek MT8192 clock support"[1].
> >
> > The definition of decoder clocks are in mt8192-clk.h, need to include them in case of build fail [1].
> >
> > [1]https://patchwork.kernel.org/project/linux-mediatek/list/?series=511175
> > ---
> >  .../media/mediatek,vcodec-comp-decoder.yaml   | 172 ++++++++++++++++++
> >  1 file changed, 172 insertions(+)
> >  create mode 100644 Documentation/devicetree/bindings/media/mediatek,vcodec-comp-decoder.yaml
> >
> > diff --git a/Documentation/devicetree/bindings/media/mediatek,vcodec-comp-decoder.yaml b/Documentation/devicetree/bindings/media/mediatek,vcodec-comp-decoder.yaml
> > new file mode 100644
> > index 000000000000..083c89933917
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/media/mediatek,vcodec-comp-decoder.yaml
> > @@ -0,0 +1,172 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/iommu/mediatek,vcodec-comp-decoder.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Mediatek Video Decode Accelerator With Component
> > +
> > +maintainers:
> > +  - Yunfei Dong <yunfei.dong@mediatek.com>
> > +
> > +description: |+
> > +  Mediatek Video Decode is the video decode hardware present in Mediatek
> > +  SoCs which supports high resolution decoding functionalities. Required
> > +  master and component node.
>
> This should explain how the three IP cores relate to each other.
>
> > +
> > +properties:
> > +  compatible:
> > +    oneOf:
> > +      - enum:
> > +          - mediatek,mt8192-vcodec-dec  # for lat hardware
> > +          - mediatek,mtk-vcodec-lat     # for core hardware
> > +          - mediatek,mtk-vcodec-core
> > +
> > +  reg:
> > +    maxItems: 1
> > +
> > +  interrupts:
> > +    maxItems: 1
> > +
> > +  clocks:
> > +    maxItems: 5
> > +
> > +  clock-names:
> > +    items:
> > +      - const: vdec-sel
> > +      - const: vdec-soc-vdec
> > +      - const: vdec-soc-lat
> > +      - const: vdec-vdec
> > +      - const: vdec-top
> > +
> > +  assigned-clocks: true
> > +
> > +  assigned-clock-parents: true
> > +
> > +  power-domains:
> > +    maxItems: 1
> > +
> > +  iommus:
> > +    minItems: 1
> > +    maxItems: 32
> > +    description: |
> > +      List of the hardware port in respective IOMMU block for current Socs.
> > +      Refer to bindings/iommu/mediatek,iommu.yaml.
> > +
> > +  dma-ranges:
> > +    maxItems: 1
> > +    description: |
> > +      Describes the physical address space of IOMMU maps to memory.
> > +
> > +  mediatek,scp:
> > +    $ref: /schemas/types.yaml#/definitions/phandle
> > +    maxItems: 1
> > +    description:
> > +      Describes point to scp.
> > +
> > +required:
> > +      - compatible
> > +      - reg
> > +      - iommus
> > +      - dma-ranges
> > +
> > +allOf:
> > +  - if: #master node
> > +      properties:
> > +        compatible:
> > +          contains:
> > +            enum:
> > +              - mediatek,mt8192-vcodec-dec  # for lat hardware
> > +
> > +    then:
> > +      required:
> > +        - mediatek,scp
> > +
> > +  - if: #component node
> > +      properties:
> > +        compatible:
> > +          contains:
> > +            enum:
> > +              - mediatek,mtk-vcodec-lat     # for core hardware
> > +              - mediatek,mtk-vcodec-core
> > +
> > +    then:
> > +      required:
> > +        - interrupts
> > +        - clocks
> > +        - clock-names
> > +        - assigned-clocks
> > +        - assigned-clock-parents
> > +        - power-domains
> > +
> > +
> > +additionalProperties: false
> > +
> > +examples:
> > +  - |
> > +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> > +    #include <dt-bindings/memory/mt8192-larb-port.h>
> > +    #include <dt-bindings/interrupt-controller/irq.h>
> > +    #include <dt-bindings/clock/mt8192-clk.h>
> > +    #include <dt-bindings/power/mt8192-power.h>
> > +
> > +    vcodec_dec: vcodec_dec@16000000 {
> > +        compatible = "mediatek,mt8192-vcodec-dec";
> > +        reg = <0 0x16000000 0 0x1000>;               /* VDEC_SYS */
> > +        mediatek,scp = <&scp>;
> > +        iommus = <&iommu0 M4U_PORT_L4_VDEC_MC_EXT>;
> > +        dma-ranges = <0x1 0x0 0x0 0x40000000 0x0 0xfff00000>;
> > +    };
> > +
> > +    vcodec_lat: vcodec_lat@0x16010000 {
> > +        compatible = "mediatek,mtk-vcodec-lat";
> > +        reg = <0 0x16010000 0 0x800>;                /* VDEC_MISC */
> > +        interrupts = <GIC_SPI 426 IRQ_TYPE_LEVEL_HIGH 0>;
> > +        iommus = <&iommu0 M4U_PORT_L5_VDEC_LAT0_VLD_EXT>,
> > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_VLD2_EXT>,
> > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_AVC_MV_EXT>,
> > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_PRED_RD_EXT>,
> > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_TILE_EXT>,
> > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_WDMA_EXT>,
> > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_RG_CTRL_DMA_EXT>,
> > +             <&iommu0 M4U_PORT_L5_VDEC_UFO_ENC_EXT>;
> > +        dma-ranges = <0x1 0x0 0x0 0x40000000 0x0 0xfff00000>;
> > +        clocks = <&topckgen CLK_TOP_VDEC_SEL>,
> > +             <&vdecsys_soc CLK_VDEC_SOC_VDEC>,
> > +             <&vdecsys_soc CLK_VDEC_SOC_LAT>,
> > +             <&vdecsys_soc CLK_VDEC_SOC_LARB1>,
> > +             <&topckgen CLK_TOP_MAINPLL_D4>;
> > +        clock-names = "vdec-sel", "vdec-soc-vdec", "vdec-soc-lat",
> > +              "vdec-vdec", "vdec-top";
> > +        assigned-clocks = <&topckgen CLK_TOP_VDEC_SEL>;
> > +        assigned-clock-parents = <&topckgen CLK_TOP_MAINPLL_D4>;
> > +        power-domains = <&spm MT8192_POWER_DOMAIN_VDEC>;
> > +    };
> > +
> > +    vcodec_core: vcodec_core@0x16025000 {
> > +        compatible = "mediatek,mtk-vcodec-core";
> > +        reg = <0 0x16025000 0 0x1000>;               /* VDEC_CORE_MISC */
> > +        interrupts = <GIC_SPI 425 IRQ_TYPE_LEVEL_HIGH 0>;
> > +        iommus = <&iommu0 M4U_PORT_L4_VDEC_MC_EXT>,
> > +             <&iommu0 M4U_PORT_L4_VDEC_UFO_EXT>,
> > +             <&iommu0 M4U_PORT_L4_VDEC_PP_EXT>,
> > +             <&iommu0 M4U_PORT_L4_VDEC_PRED_RD_EXT>,
> > +             <&iommu0 M4U_PORT_L4_VDEC_PRED_WR_EXT>,
> > +             <&iommu0 M4U_PORT_L4_VDEC_PPWRAP_EXT>,
> > +             <&iommu0 M4U_PORT_L4_VDEC_TILE_EXT>,
> > +             <&iommu0 M4U_PORT_L4_VDEC_VLD_EXT>,
> > +             <&iommu0 M4U_PORT_L4_VDEC_VLD2_EXT>,
> > +             <&iommu0 M4U_PORT_L4_VDEC_AVC_MV_EXT>,
> > +             <&iommu0 M4U_PORT_L4_VDEC_RG_CTRL_DMA_EXT>;
> > +        dma-ranges = <0x1 0x0 0x0 0x40000000 0x0 0xfff00000>;
> > +        clocks = <&topckgen CLK_TOP_VDEC_SEL>,
> > +             <&vdecsys CLK_VDEC_VDEC>,
> > +             <&vdecsys CLK_VDEC_LAT>,
> > +             <&vdecsys CLK_VDEC_LARB1>,
> > +             <&topckgen CLK_TOP_MAINPLL_D4>;
> > +        clock-names = "vdec-sel", "vdec-soc-vdec", "vdec-soc-lat",
> > +              "vdec-vdec", "vdec-top";
> > +        assigned-clocks = <&topckgen CLK_TOP_VDEC_SEL>;
> > +        assigned-clock-parents = <&topckgen CLK_TOP_MAINPLL_D4>;
> > +        power-domains = <&spm MT8192_POWER_DOMAIN_VDEC2>;
> > +    };
>
> I'm a bit late in the game, reviewing v5 only, but I'm wondering if
> those IP cores need to be modelled in separate nodes. It would be much
> easier, from a software point of view, to have a single node, with
> multiple register ranges.
>
> Are some of those IP cores used in different SoCs, combined in different
> ways, that make a modular design better ?
>

Yeah, I agree with Laurent here. This way of modelling the different parts
of the CODEC as different pieces is the reason why you need a framework
to pull them together, such as the component API (I guess v4l2-async
could have been used as well).

I normally don't bother with driver internals, as its up to each driver
author to decide what is best. However, I believe this design is too
convoluted, and it may lead other developers to follow the same pattern,
so please avoid it.

There are several ways of modelling this and initializing or probing
the sub-devices,
without using any async framework.

Thanks,
Ezequiel

^ permalink raw reply	[flat|nested] 41+ messages in thread

* Re: [PATCH v5, 13/15] dt-bindings: media: mtk-vcodec: Adds decoder dt-bindings for mt8192
  2021-08-17  3:50     ` yunfei.dong
@ 2021-08-29 20:54       ` Ezequiel Garcia
  2021-09-01  3:49         ` yunfei.dong
  0 siblings, 1 reply; 41+ messages in thread
From: Ezequiel Garcia @ 2021-08-29 20:54 UTC (permalink / raw)
  To: yunfei.dong
  Cc: Laurent Pinchart, Alexandre Courbot, Hans Verkuil, Tzung-Bi Shih,
	Tiffany Lin, Andrew-CT Chen, Mauro Carvalho Chehab, Rob Herring,
	Matthias Brugger, Tomasz Figa, Hsin-Yi Wang, Fritz Koenig,
	Irui Wang, linux-media, devicetree, Linux Kernel Mailing List,
	linux-arm-kernel, srv_heupstream,
	moderated list:ARM/Mediatek SoC support,
	Project_Global_Chrome_Upstream_Group, George Sun

On Tue, 17 Aug 2021 at 00:52, yunfei.dong@mediatek.com
<yunfei.dong@mediatek.com> wrote:
>
> Hi Laurent,
>
> Thanks for your detail suggestion.
>
> On Wed, 2021-08-11 at 20:59 +0300, Laurent Pinchart wrote:
> > Hi Yunfei,
> >
> > Thank you for the patch.
> >
> > On Wed, Aug 11, 2021 at 10:57:59AM +0800, Yunfei Dong wrote:
> > > Adds decoder dt-bindings for mt8192.
> > >
> > > Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
> > > ---
> > > v5: no changes
> > >
> > > This patch depends on "Mediatek MT8192 clock support"[1].
> > >
> > > The definition of decoder clocks are in mt8192-clk.h, need to
> > > include them in case of build fail [1].
> > >
> > > [1]
> > > https://patchwork.kernel.org/project/linux-mediatek/list/?series=511175
> > > ---
> > >  .../media/mediatek,vcodec-comp-decoder.yaml   | 172
> > > ++++++++++++++++++
> > >  1 file changed, 172 insertions(+)
> > >  create mode 100644
> > > Documentation/devicetree/bindings/media/mediatek,vcodec-comp-
> > > decoder.yaml
> > >
> > > diff --git
> > > a/Documentation/devicetree/bindings/media/mediatek,vcodec-comp-
> > > decoder.yaml
> > > b/Documentation/devicetree/bindings/media/mediatek,vcodec-comp-
> > > decoder.yaml
> > > new file mode 100644
> > > index 000000000000..083c89933917
> > > --- /dev/null
> > > +++ b/Documentation/devicetree/bindings/media/mediatek,vcodec-comp-
> > > decoder.yaml
> > > @@ -0,0 +1,172 @@
> > > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > > +%YAML 1.2
> > > +---
> > > +$id:
> > > http://devicetree.org/schemas/iommu/mediatek,vcodec-comp-decoder.yaml#
> > > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > > +
> > > +title: Mediatek Video Decode Accelerator With Component
> > > +
> > > +maintainers:
> > > +  - Yunfei Dong <yunfei.dong@mediatek.com>
> > > +
> > > +description: |+
> > > +  Mediatek Video Decode is the video decode hardware present in
> > > Mediatek
> > > +  SoCs which supports high resolution decoding functionalities.
> > > Required
> > > +  master and component node.
> >
> > This should explain how the three IP cores relate to each other.
> >
> I will explain it in next patch.
> > > +
> > > +properties:
> > > +  compatible:
> > > +    oneOf:
> > > +      - enum:
> > > +          - mediatek,mt8192-vcodec-dec  # for lat hardware
> > > +          - mediatek,mtk-vcodec-lat     # for core hardware
> > > +          - mediatek,mtk-vcodec-core
> > > +
> > > +  reg:
> > > +    maxItems: 1
> > > +
> > > +  interrupts:
> > > +    maxItems: 1
> > > +
> > > +  clocks:
> > > +    maxItems: 5
> > > +
> > > +  clock-names:
> > > +    items:
> > > +      - const: vdec-sel
> > > +      - const: vdec-soc-vdec
> > > +      - const: vdec-soc-lat
> > > +      - const: vdec-vdec
> > > +      - const: vdec-top
> > > +
> > > +  assigned-clocks: true
> > > +
> > > +  assigned-clock-parents: true
> > > +
> > > +  power-domains:
> > > +    maxItems: 1
> > > +
> > > +  iommus:
> > > +    minItems: 1
> > > +    maxItems: 32
> > > +    description: |
> > > +      List of the hardware port in respective IOMMU block for
> > > current Socs.
> > > +      Refer to bindings/iommu/mediatek,iommu.yaml.
> > > +
> > > +  dma-ranges:
> > > +    maxItems: 1
> > > +    description: |
> > > +      Describes the physical address space of IOMMU maps to
> > > memory.
> > > +
> > > +  mediatek,scp:
> > > +    $ref: /schemas/types.yaml#/definitions/phandle
> > > +    maxItems: 1
> > > +    description:
> > > +      Describes point to scp.
> > > +
> > > +required:
> > > +      - compatible
> > > +      - reg
> > > +      - iommus
> > > +      - dma-ranges
> > > +
> > > +allOf:
> > > +  - if: #master node
> > > +      properties:
> > > +        compatible:
> > > +          contains:
> > > +            enum:
> > > +              - mediatek,mt8192-vcodec-dec  # for lat hardware
> > > +
> > > +    then:
> > > +      required:
> > > +        - mediatek,scp
> > > +
> > > +  - if: #component node
> > > +      properties:
> > > +        compatible:
> > > +          contains:
> > > +            enum:
> > > +              - mediatek,mtk-vcodec-lat     # for core hardware
> > > +              - mediatek,mtk-vcodec-core
> > > +
> > > +    then:
> > > +      required:
> > > +        - interrupts
> > > +        - clocks
> > > +        - clock-names
> > > +        - assigned-clocks
> > > +        - assigned-clock-parents
> > > +        - power-domains
> > > +
> > > +
> > > +additionalProperties: false
> > > +
> > > +examples:
> > > +  - |
> > > +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> > > +    #include <dt-bindings/memory/mt8192-larb-port.h>
> > > +    #include <dt-bindings/interrupt-controller/irq.h>
> > > +    #include <dt-bindings/clock/mt8192-clk.h>
> > > +    #include <dt-bindings/power/mt8192-power.h>
> > > +
> > > +    vcodec_dec: vcodec_dec@16000000 {
> > > +        compatible = "mediatek,mt8192-vcodec-dec";
> > > +        reg = <0 0x16000000 0 0x1000>;             /* VDEC_SYS */
> > > +        mediatek,scp = <&scp>;
> > > +        iommus = <&iommu0 M4U_PORT_L4_VDEC_MC_EXT>;
> > > +        dma-ranges = <0x1 0x0 0x0 0x40000000 0x0 0xfff00000>;
> > > +    };
> > > +
> > > +    vcodec_lat: vcodec_lat@0x16010000 {
> > > +        compatible = "mediatek,mtk-vcodec-lat";
> > > +        reg = <0 0x16010000 0 0x800>;              /* VDEC_MISC */
> > > +        interrupts = <GIC_SPI 426 IRQ_TYPE_LEVEL_HIGH 0>;
> > > +        iommus = <&iommu0 M4U_PORT_L5_VDEC_LAT0_VLD_EXT>,
> > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_VLD2_EXT>,
> > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_AVC_MV_EXT>,
> > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_PRED_RD_EXT>,
> > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_TILE_EXT>,
> > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_WDMA_EXT>,
> > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_RG_CTRL_DMA_EXT>,
> > > +             <&iommu0 M4U_PORT_L5_VDEC_UFO_ENC_EXT>;
> > > +        dma-ranges = <0x1 0x0 0x0 0x40000000 0x0 0xfff00000>;
> > > +        clocks = <&topckgen CLK_TOP_VDEC_SEL>,
> > > +             <&vdecsys_soc CLK_VDEC_SOC_VDEC>,
> > > +             <&vdecsys_soc CLK_VDEC_SOC_LAT>,
> > > +             <&vdecsys_soc CLK_VDEC_SOC_LARB1>,
> > > +             <&topckgen CLK_TOP_MAINPLL_D4>;
> > > +        clock-names = "vdec-sel", "vdec-soc-vdec", "vdec-soc-lat",
> > > +              "vdec-vdec", "vdec-top";
> > > +        assigned-clocks = <&topckgen CLK_TOP_VDEC_SEL>;
> > > +        assigned-clock-parents = <&topckgen CLK_TOP_MAINPLL_D4>;
> > > +        power-domains = <&spm MT8192_POWER_DOMAIN_VDEC>;
> > > +    };
> > > +
> > > +    vcodec_core: vcodec_core@0x16025000 {
> > > +        compatible = "mediatek,mtk-vcodec-core";
> > > +        reg = <0 0x16025000 0 0x1000>;             /*
> > > VDEC_CORE_MISC */
> > > +        interrupts = <GIC_SPI 425 IRQ_TYPE_LEVEL_HIGH 0>;
> > > +        iommus = <&iommu0 M4U_PORT_L4_VDEC_MC_EXT>,
> > > +             <&iommu0 M4U_PORT_L4_VDEC_UFO_EXT>,
> > > +             <&iommu0 M4U_PORT_L4_VDEC_PP_EXT>,
> > > +             <&iommu0 M4U_PORT_L4_VDEC_PRED_RD_EXT>,
> > > +             <&iommu0 M4U_PORT_L4_VDEC_PRED_WR_EXT>,
> > > +             <&iommu0 M4U_PORT_L4_VDEC_PPWRAP_EXT>,
> > > +             <&iommu0 M4U_PORT_L4_VDEC_TILE_EXT>,
> > > +             <&iommu0 M4U_PORT_L4_VDEC_VLD_EXT>,
> > > +             <&iommu0 M4U_PORT_L4_VDEC_VLD2_EXT>,
> > > +             <&iommu0 M4U_PORT_L4_VDEC_AVC_MV_EXT>,
> > > +             <&iommu0 M4U_PORT_L4_VDEC_RG_CTRL_DMA_EXT>;
> > > +        dma-ranges = <0x1 0x0 0x0 0x40000000 0x0 0xfff00000>;
> > > +        clocks = <&topckgen CLK_TOP_VDEC_SEL>,
> > > +             <&vdecsys CLK_VDEC_VDEC>,
> > > +             <&vdecsys CLK_VDEC_LAT>,
> > > +             <&vdecsys CLK_VDEC_LARB1>,
> > > +             <&topckgen CLK_TOP_MAINPLL_D4>;
> > > +        clock-names = "vdec-sel", "vdec-soc-vdec", "vdec-soc-lat",
> > > +              "vdec-vdec", "vdec-top";
> > > +        assigned-clocks = <&topckgen CLK_TOP_VDEC_SEL>;
> > > +        assigned-clock-parents = <&topckgen CLK_TOP_MAINPLL_D4>;
> > > +        power-domains = <&spm MT8192_POWER_DOMAIN_VDEC2>;
> > > +    };
> >
> > I'm a bit late in the game, reviewing v5 only, but I'm wondering if
> > those IP cores need to be modelled in separate nodes. It would be
> > much
> > easier, from a software point of view, to have a single node, with
> > multiple register ranges.
> >
> > Are some of those IP cores used in different SoCs, combined in
> > different
> > ways, that make a modular design better ?
> >
> Different platform has different hardware, for mt8192 only has three
> nodes. but mt8195 will has five nodes. and the clk/power/irq/iommu are
> different. It is not easy to manage all hardware at the same time in
> one node, need to enable different hardware at the same time, the logic
> will be very complex.
> It is much easier to handle different hardware using component, enable
> different hardware when we need it.
>
>

You can still have one device-tree node for each device, which means
you can still manage your resources (clk/power/irq/iommu) easily, but doing
this so that it avoids an async framework to pull the parts together.

I gave you this feedback several times, and you have been objecting it
every time  without even trying to consider a different approach.

Thanks,
Ezequiel

^ permalink raw reply	[flat|nested] 41+ messages in thread

* Re: [PATCH v5, 13/15] dt-bindings: media: mtk-vcodec: Adds decoder dt-bindings for mt8192
  2021-08-29 20:50     ` Ezequiel Garcia
@ 2021-08-30  6:07       ` yunfei.dong
  2021-08-30  9:00         ` Laurent Pinchart
  0 siblings, 1 reply; 41+ messages in thread
From: yunfei.dong @ 2021-08-30  6:07 UTC (permalink / raw)
  To: Ezequiel Garcia, Laurent Pinchart
  Cc: Alexandre Courbot, Hans Verkuil, Tzung-Bi Shih, Tiffany Lin,
	Andrew-CT Chen, Mauro Carvalho Chehab, Rob Herring,
	Matthias Brugger, Tomasz Figa, Hsin-Yi Wang, Fritz Koenig,
	Irui Wang, linux-media, devicetree, Linux Kernel Mailing List,
	linux-arm-kernel, srv_heupstream,
	moderated list:ARM/Mediatek SoC support,
	Project_Global_Chrome_Upstream_Group, George Sun

On Sun, 2021-08-29 at 17:50 -0300, Ezequiel Garcia wrote:
> On Wed, 11 Aug 2021 at 14:59, Laurent Pinchart
> <laurent.pinchart@ideasonboard.com> wrote:
> > 
> > Hi Yunfei,
> > 
> > Thank you for the patch.
> > 
> > On Wed, Aug 11, 2021 at 10:57:59AM +0800, Yunfei Dong wrote:
> > > Adds decoder dt-bindings for mt8192.
> > > 
> > > Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
> > > ---
> > > v5: no changes
> > > 
> > > This patch depends on "Mediatek MT8192 clock support"[1].
> > > 
> > > The definition of decoder clocks are in mt8192-clk.h, need to
> > > include them in case of build fail [1].
> > > 
> > > [1]
> > > https://patchwork.kernel.org/project/linux-mediatek/list/?series=511175
> > > ---
> > >  .../media/mediatek,vcodec-comp-decoder.yaml   | 172
> > > ++++++++++++++++++
> > >  1 file changed, 172 insertions(+)
> > >  create mode 100644
> > > Documentation/devicetree/bindings/media/mediatek,vcodec-comp-
> > > decoder.yaml
> > > 
> > > diff --git
> > > a/Documentation/devicetree/bindings/media/mediatek,vcodec-comp-
> > > decoder.yaml
> > > b/Documentation/devicetree/bindings/media/mediatek,vcodec-comp-
> > > decoder.yaml
> > > new file mode 100644
> > > index 000000000000..083c89933917
> > > --- /dev/null
> > > +++ b/Documentation/devicetree/bindings/media/mediatek,vcodec-
> > > comp-decoder.yaml
> > > @@ -0,0 +1,172 @@
> > > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > > +%YAML 1.2
> > > +---
> > > +$id: 
> > > http://devicetree.org/schemas/iommu/mediatek,vcodec-comp-decoder.yaml#
> > > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > > +
> > > +title: Mediatek Video Decode Accelerator With Component
> > > +
> > > +maintainers:
> > > +  - Yunfei Dong <yunfei.dong@mediatek.com>
> > > +
> > > +description: |+
> > > +  Mediatek Video Decode is the video decode hardware present in
> > > Mediatek
> > > +  SoCs which supports high resolution decoding functionalities.
> > > Required
> > > +  master and component node.
> > 
> > This should explain how the three IP cores relate to each other.
> > 
> > > +
> > > +properties:
> > > +  compatible:
> > > +    oneOf:
> > > +      - enum:
> > > +          - mediatek,mt8192-vcodec-dec  # for lat hardware
> > > +          - mediatek,mtk-vcodec-lat     # for core hardware
> > > +          - mediatek,mtk-vcodec-core
> > > +
> > > +  reg:
> > > +    maxItems: 1
> > > +
> > > +  interrupts:
> > > +    maxItems: 1
> > > +
> > > +  clocks:
> > > +    maxItems: 5
> > > +
> > > +  clock-names:
> > > +    items:
> > > +      - const: vdec-sel
> > > +      - const: vdec-soc-vdec
> > > +      - const: vdec-soc-lat
> > > +      - const: vdec-vdec
> > > +      - const: vdec-top
> > > +
> > > +  assigned-clocks: true
> > > +
> > > +  assigned-clock-parents: true
> > > +
> > > +  power-domains:
> > > +    maxItems: 1
> > > +
> > > +  iommus:
> > > +    minItems: 1
> > > +    maxItems: 32
> > > +    description: |
> > > +      List of the hardware port in respective IOMMU block for
> > > current Socs.
> > > +      Refer to bindings/iommu/mediatek,iommu.yaml.
> > > +
> > > +  dma-ranges:
> > > +    maxItems: 1
> > > +    description: |
> > > +      Describes the physical address space of IOMMU maps to
> > > memory.
> > > +
> > > +  mediatek,scp:
> > > +    $ref: /schemas/types.yaml#/definitions/phandle
> > > +    maxItems: 1
> > > +    description:
> > > +      Describes point to scp.
> > > +
> > > +required:
> > > +      - compatible
> > > +      - reg
> > > +      - iommus
> > > +      - dma-ranges
> > > +
> > > +allOf:
> > > +  - if: #master node
> > > +      properties:
> > > +        compatible:
> > > +          contains:
> > > +            enum:
> > > +              - mediatek,mt8192-vcodec-dec  # for lat hardware
> > > +
> > > +    then:
> > > +      required:
> > > +        - mediatek,scp
> > > +
> > > +  - if: #component node
> > > +      properties:
> > > +        compatible:
> > > +          contains:
> > > +            enum:
> > > +              - mediatek,mtk-vcodec-lat     # for core hardware
> > > +              - mediatek,mtk-vcodec-core
> > > +
> > > +    then:
> > > +      required:
> > > +        - interrupts
> > > +        - clocks
> > > +        - clock-names
> > > +        - assigned-clocks
> > > +        - assigned-clock-parents
> > > +        - power-domains
> > > +
> > > +
> > > +additionalProperties: false
> > > +
> > > +examples:
> > > +  - |
> > > +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> > > +    #include <dt-bindings/memory/mt8192-larb-port.h>
> > > +    #include <dt-bindings/interrupt-controller/irq.h>
> > > +    #include <dt-bindings/clock/mt8192-clk.h>
> > > +    #include <dt-bindings/power/mt8192-power.h>
> > > +
> > > +    vcodec_dec: vcodec_dec@16000000 {
> > > +        compatible = "mediatek,mt8192-vcodec-dec";
> > > +        reg = <0 0x16000000 0 0x1000>;               /* VDEC_SYS
> > > */
> > > +        mediatek,scp = <&scp>;
> > > +        iommus = <&iommu0 M4U_PORT_L4_VDEC_MC_EXT>;
> > > +        dma-ranges = <0x1 0x0 0x0 0x40000000 0x0 0xfff00000>;
> > > +    };
> > > +
> > > +    vcodec_lat: vcodec_lat@0x16010000 {
> > > +        compatible = "mediatek,mtk-vcodec-lat";
> > > +        reg = <0 0x16010000 0 0x800>;                /*
> > > VDEC_MISC */
> > > +        interrupts = <GIC_SPI 426 IRQ_TYPE_LEVEL_HIGH 0>;
> > > +        iommus = <&iommu0 M4U_PORT_L5_VDEC_LAT0_VLD_EXT>,
> > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_VLD2_EXT>,
> > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_AVC_MV_EXT>,
> > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_PRED_RD_EXT>,
> > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_TILE_EXT>,
> > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_WDMA_EXT>,
> > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_RG_CTRL_DMA_EXT>,
> > > +             <&iommu0 M4U_PORT_L5_VDEC_UFO_ENC_EXT>;
> > > +        dma-ranges = <0x1 0x0 0x0 0x40000000 0x0 0xfff00000>;
> > > +        clocks = <&topckgen CLK_TOP_VDEC_SEL>,
> > > +             <&vdecsys_soc CLK_VDEC_SOC_VDEC>,
> > > +             <&vdecsys_soc CLK_VDEC_SOC_LAT>,
> > > +             <&vdecsys_soc CLK_VDEC_SOC_LARB1>,
> > > +             <&topckgen CLK_TOP_MAINPLL_D4>;
> > > +        clock-names = "vdec-sel", "vdec-soc-vdec", "vdec-soc-
> > > lat",
> > > +              "vdec-vdec", "vdec-top";
> > > +        assigned-clocks = <&topckgen CLK_TOP_VDEC_SEL>;
> > > +        assigned-clock-parents = <&topckgen CLK_TOP_MAINPLL_D4>;
> > > +        power-domains = <&spm MT8192_POWER_DOMAIN_VDEC>;
> > > +    };
> > > +
> > > +    vcodec_core: vcodec_core@0x16025000 {
> > > +        compatible = "mediatek,mtk-vcodec-core";
> > > +        reg = <0 0x16025000 0 0x1000>;               /*
> > > VDEC_CORE_MISC */
> > > +        interrupts = <GIC_SPI 425 IRQ_TYPE_LEVEL_HIGH 0>;
> > > +        iommus = <&iommu0 M4U_PORT_L4_VDEC_MC_EXT>,
> > > +             <&iommu0 M4U_PORT_L4_VDEC_UFO_EXT>,
> > > +             <&iommu0 M4U_PORT_L4_VDEC_PP_EXT>,
> > > +             <&iommu0 M4U_PORT_L4_VDEC_PRED_RD_EXT>,
> > > +             <&iommu0 M4U_PORT_L4_VDEC_PRED_WR_EXT>,
> > > +             <&iommu0 M4U_PORT_L4_VDEC_PPWRAP_EXT>,
> > > +             <&iommu0 M4U_PORT_L4_VDEC_TILE_EXT>,
> > > +             <&iommu0 M4U_PORT_L4_VDEC_VLD_EXT>,
> > > +             <&iommu0 M4U_PORT_L4_VDEC_VLD2_EXT>,
> > > +             <&iommu0 M4U_PORT_L4_VDEC_AVC_MV_EXT>,
> > > +             <&iommu0 M4U_PORT_L4_VDEC_RG_CTRL_DMA_EXT>;
> > > +        dma-ranges = <0x1 0x0 0x0 0x40000000 0x0 0xfff00000>;
> > > +        clocks = <&topckgen CLK_TOP_VDEC_SEL>,
> > > +             <&vdecsys CLK_VDEC_VDEC>,
> > > +             <&vdecsys CLK_VDEC_LAT>,
> > > +             <&vdecsys CLK_VDEC_LARB1>,
> > > +             <&topckgen CLK_TOP_MAINPLL_D4>;
> > > +        clock-names = "vdec-sel", "vdec-soc-vdec", "vdec-soc-
> > > lat",
> > > +              "vdec-vdec", "vdec-top";
> > > +        assigned-clocks = <&topckgen CLK_TOP_VDEC_SEL>;
> > > +        assigned-clock-parents = <&topckgen CLK_TOP_MAINPLL_D4>;
> > > +        power-domains = <&spm MT8192_POWER_DOMAIN_VDEC2>;
> > > +    };
> > 
> > I'm a bit late in the game, reviewing v5 only, but I'm wondering if
> > those IP cores need to be modelled in separate nodes. It would be
> > much
> > easier, from a software point of view, to have a single node, with
> > multiple register ranges.
> > 
> > Are some of those IP cores used in different SoCs, combined in
> > different
> > ways, that make a modular design better ?
> > 
> 
1. Each a node should respect a HW node. Defining a complex node that
contain multiple register is not better, for they belong to different
hardware. Different platforms has different hardware count, mt8195 has
five hardwares.
2. Another reason is from the IOMMU point, the vcodec HW include core
and lat hardwares, each of them connect to the independent IOMMU
hardware for mt8195, can't write all iommu ports together, or hardware
can't access dram data, so we must separate them.
> Yeah, I agree with Laurent here. This way of modelling the different
> parts
> of the CODEC as different pieces is the reason why you need a
> framework
> to pull them together, such as the component API (I guess v4l2-async
> could have been used as well).
> 
We must separate each hardware node, only master need to register video
and media device, component just used for store clk/power/irq/register
information for current hardware.
> I normally don't bother with driver internals, as its up to each
> driver
> author to decide what is best. However, I believe this design is too
> convoluted, and it may lead other developers to follow the same
> pattern,
> so please avoid it.
> 
According to your information, it looks that component and v4l2 async
are ok for this architecture, only component is too convoluted(iommu
driver also use component).

For we are not very familiar with v4l2 async, out architecture is
designed for component include next forty patches. It is a very big
change for out driver. I will try to spend a lot of time to change it.

> There are several ways of modelling this and initializing or probing
> the sub-devices,
> without using any async framework.
> 
You may misunderstand, I'm not objecting your suggestion every time,
for our driver is designed for component api, need to spend a lot of
time to change it in many platforms. I will change it if v4l2 async has
many advantages then component as you said. I will try to use v4l2
async as compared.

> Thanks,
> Ezequiel

Thanks for your suggestion.
Yunfei Dong

^ permalink raw reply	[flat|nested] 41+ messages in thread

* Re: [PATCH v5, 13/15] dt-bindings: media: mtk-vcodec: Adds decoder dt-bindings for mt8192
  2021-08-30  6:07       ` yunfei.dong
@ 2021-08-30  9:00         ` Laurent Pinchart
  0 siblings, 0 replies; 41+ messages in thread
From: Laurent Pinchart @ 2021-08-30  9:00 UTC (permalink / raw)
  To: yunfei.dong
  Cc: Ezequiel Garcia, Alexandre Courbot, Hans Verkuil, Tzung-Bi Shih,
	Tiffany Lin, Andrew-CT Chen, Mauro Carvalho Chehab, Rob Herring,
	Matthias Brugger, Tomasz Figa, Hsin-Yi Wang, Fritz Koenig,
	Irui Wang, linux-media, devicetree, Linux Kernel Mailing List,
	linux-arm-kernel, srv_heupstream,
	moderated list:ARM/Mediatek SoC support,
	Project_Global_Chrome_Upstream_Group, George Sun

Hi Yunfei,

On Mon, Aug 30, 2021 at 02:07:44PM +0800, yunfei.dong@mediatek.com wrote:
> On Sun, 2021-08-29 at 17:50 -0300, Ezequiel Garcia wrote:
> > On Wed, 11 Aug 2021 at 14:59, Laurent Pinchart wrote:
> > > On Wed, Aug 11, 2021 at 10:57:59AM +0800, Yunfei Dong wrote:
> > > > Adds decoder dt-bindings for mt8192.
> > > > 
> > > > Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
> > > > ---
> > > > v5: no changes
> > > > 
> > > > This patch depends on "Mediatek MT8192 clock support"[1].
> > > > 
> > > > The definition of decoder clocks are in mt8192-clk.h, need to
> > > > include them in case of build fail [1].
> > > > 
> > > > [1]
> > > > https://patchwork.kernel.org/project/linux-mediatek/list/?series=511175
> > > > ---
> > > >  .../media/mediatek,vcodec-comp-decoder.yaml   | 172 ++++++++++++++++++
> > > >  1 file changed, 172 insertions(+)
> > > >  create mode 100644
> > > > Documentation/devicetree/bindings/media/mediatek,vcodec-comp-decoder.yaml
> > > > 
> > > > diff --git a/Documentation/devicetree/bindings/media/mediatek,vcodec-comp-decoder.yaml b/Documentation/devicetree/bindings/media/mediatek,vcodec-comp-decoder.yaml
> > > > new file mode 100644
> > > > index 000000000000..083c89933917
> > > > --- /dev/null
> > > > +++ b/Documentation/devicetree/bindings/media/mediatek,vcodec-comp-decoder.yaml
> > > > @@ -0,0 +1,172 @@
> > > > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > > > +%YAML 1.2
> > > > +---
> > > > +$id: http://devicetree.org/schemas/iommu/mediatek,vcodec-comp-decoder.yaml#
> > > > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > > > +
> > > > +title: Mediatek Video Decode Accelerator With Component
> > > > +
> > > > +maintainers:
> > > > +  - Yunfei Dong <yunfei.dong@mediatek.com>
> > > > +
> > > > +description: |+
> > > > +  Mediatek Video Decode is the video decode hardware present in Mediatek
> > > > +  SoCs which supports high resolution decoding functionalities. Required
> > > > +  master and component node.
> > > 
> > > This should explain how the three IP cores relate to each other.
> > > 
> > > > +
> > > > +properties:
> > > > +  compatible:
> > > > +    oneOf:
> > > > +      - enum:
> > > > +          - mediatek,mt8192-vcodec-dec  # for lat hardware
> > > > +          - mediatek,mtk-vcodec-lat     # for core hardware
> > > > +          - mediatek,mtk-vcodec-core
> > > > +
> > > > +  reg:
> > > > +    maxItems: 1
> > > > +
> > > > +  interrupts:
> > > > +    maxItems: 1
> > > > +
> > > > +  clocks:
> > > > +    maxItems: 5
> > > > +
> > > > +  clock-names:
> > > > +    items:
> > > > +      - const: vdec-sel
> > > > +      - const: vdec-soc-vdec
> > > > +      - const: vdec-soc-lat
> > > > +      - const: vdec-vdec
> > > > +      - const: vdec-top
> > > > +
> > > > +  assigned-clocks: true
> > > > +
> > > > +  assigned-clock-parents: true
> > > > +
> > > > +  power-domains:
> > > > +    maxItems: 1
> > > > +
> > > > +  iommus:
> > > > +    minItems: 1
> > > > +    maxItems: 32
> > > > +    description: |
> > > > +      List of the hardware port in respective IOMMU block for current Socs.
> > > > +      Refer to bindings/iommu/mediatek,iommu.yaml.
> > > > +
> > > > +  dma-ranges:
> > > > +    maxItems: 1
> > > > +    description: |
> > > > +      Describes the physical address space of IOMMU maps to memory.
> > > > +
> > > > +  mediatek,scp:
> > > > +    $ref: /schemas/types.yaml#/definitions/phandle
> > > > +    maxItems: 1
> > > > +    description:
> > > > +      Describes point to scp.
> > > > +
> > > > +required:
> > > > +      - compatible
> > > > +      - reg
> > > > +      - iommus
> > > > +      - dma-ranges
> > > > +
> > > > +allOf:
> > > > +  - if: #master node
> > > > +      properties:
> > > > +        compatible:
> > > > +          contains:
> > > > +            enum:
> > > > +              - mediatek,mt8192-vcodec-dec  # for lat hardware
> > > > +
> > > > +    then:
> > > > +      required:
> > > > +        - mediatek,scp
> > > > +
> > > > +  - if: #component node
> > > > +      properties:
> > > > +        compatible:
> > > > +          contains:
> > > > +            enum:
> > > > +              - mediatek,mtk-vcodec-lat     # for core hardware
> > > > +              - mediatek,mtk-vcodec-core
> > > > +
> > > > +    then:
> > > > +      required:
> > > > +        - interrupts
> > > > +        - clocks
> > > > +        - clock-names
> > > > +        - assigned-clocks
> > > > +        - assigned-clock-parents
> > > > +        - power-domains
> > > > +
> > > > +
> > > > +additionalProperties: false
> > > > +
> > > > +examples:
> > > > +  - |
> > > > +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> > > > +    #include <dt-bindings/memory/mt8192-larb-port.h>
> > > > +    #include <dt-bindings/interrupt-controller/irq.h>
> > > > +    #include <dt-bindings/clock/mt8192-clk.h>
> > > > +    #include <dt-bindings/power/mt8192-power.h>
> > > > +
> > > > +    vcodec_dec: vcodec_dec@16000000 {
> > > > +        compatible = "mediatek,mt8192-vcodec-dec";
> > > > +        reg = <0 0x16000000 0 0x1000>;               /* VDEC_SYS */
> > > > +        mediatek,scp = <&scp>;
> > > > +        iommus = <&iommu0 M4U_PORT_L4_VDEC_MC_EXT>;
> > > > +        dma-ranges = <0x1 0x0 0x0 0x40000000 0x0 0xfff00000>;
> > > > +    };
> > > > +
> > > > +    vcodec_lat: vcodec_lat@0x16010000 {
> > > > +        compatible = "mediatek,mtk-vcodec-lat";
> > > > +        reg = <0 0x16010000 0 0x800>;                /* VDEC_MISC */
> > > > +        interrupts = <GIC_SPI 426 IRQ_TYPE_LEVEL_HIGH 0>;
> > > > +        iommus = <&iommu0 M4U_PORT_L5_VDEC_LAT0_VLD_EXT>,
> > > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_VLD2_EXT>,
> > > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_AVC_MV_EXT>,
> > > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_PRED_RD_EXT>,
> > > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_TILE_EXT>,
> > > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_WDMA_EXT>,
> > > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_RG_CTRL_DMA_EXT>,
> > > > +             <&iommu0 M4U_PORT_L5_VDEC_UFO_ENC_EXT>;
> > > > +        dma-ranges = <0x1 0x0 0x0 0x40000000 0x0 0xfff00000>;
> > > > +        clocks = <&topckgen CLK_TOP_VDEC_SEL>,
> > > > +             <&vdecsys_soc CLK_VDEC_SOC_VDEC>,
> > > > +             <&vdecsys_soc CLK_VDEC_SOC_LAT>,
> > > > +             <&vdecsys_soc CLK_VDEC_SOC_LARB1>,
> > > > +             <&topckgen CLK_TOP_MAINPLL_D4>;
> > > > +        clock-names = "vdec-sel", "vdec-soc-vdec", "vdec-soc-lat",
> > > > +              "vdec-vdec", "vdec-top";
> > > > +        assigned-clocks = <&topckgen CLK_TOP_VDEC_SEL>;
> > > > +        assigned-clock-parents = <&topckgen CLK_TOP_MAINPLL_D4>;
> > > > +        power-domains = <&spm MT8192_POWER_DOMAIN_VDEC>;
> > > > +    };
> > > > +
> > > > +    vcodec_core: vcodec_core@0x16025000 {
> > > > +        compatible = "mediatek,mtk-vcodec-core";
> > > > +        reg = <0 0x16025000 0 0x1000>;               /* VDEC_CORE_MISC */
> > > > +        interrupts = <GIC_SPI 425 IRQ_TYPE_LEVEL_HIGH 0>;
> > > > +        iommus = <&iommu0 M4U_PORT_L4_VDEC_MC_EXT>,
> > > > +             <&iommu0 M4U_PORT_L4_VDEC_UFO_EXT>,
> > > > +             <&iommu0 M4U_PORT_L4_VDEC_PP_EXT>,
> > > > +             <&iommu0 M4U_PORT_L4_VDEC_PRED_RD_EXT>,
> > > > +             <&iommu0 M4U_PORT_L4_VDEC_PRED_WR_EXT>,
> > > > +             <&iommu0 M4U_PORT_L4_VDEC_PPWRAP_EXT>,
> > > > +             <&iommu0 M4U_PORT_L4_VDEC_TILE_EXT>,
> > > > +             <&iommu0 M4U_PORT_L4_VDEC_VLD_EXT>,
> > > > +             <&iommu0 M4U_PORT_L4_VDEC_VLD2_EXT>,
> > > > +             <&iommu0 M4U_PORT_L4_VDEC_AVC_MV_EXT>,
> > > > +             <&iommu0 M4U_PORT_L4_VDEC_RG_CTRL_DMA_EXT>;
> > > > +        dma-ranges = <0x1 0x0 0x0 0x40000000 0x0 0xfff00000>;
> > > > +        clocks = <&topckgen CLK_TOP_VDEC_SEL>,
> > > > +             <&vdecsys CLK_VDEC_VDEC>,
> > > > +             <&vdecsys CLK_VDEC_LAT>,
> > > > +             <&vdecsys CLK_VDEC_LARB1>,
> > > > +             <&topckgen CLK_TOP_MAINPLL_D4>;
> > > > +        clock-names = "vdec-sel", "vdec-soc-vdec", "vdec-soc-lat",
> > > > +              "vdec-vdec", "vdec-top";
> > > > +        assigned-clocks = <&topckgen CLK_TOP_VDEC_SEL>;
> > > > +        assigned-clock-parents = <&topckgen CLK_TOP_MAINPLL_D4>;
> > > > +        power-domains = <&spm MT8192_POWER_DOMAIN_VDEC2>;
> > > > +    };
> > > 
> > > I'm a bit late in the game, reviewing v5 only, but I'm wondering if
> > > those IP cores need to be modelled in separate nodes. It would be much
> > > easier, from a software point of view, to have a single node, with
> > > multiple register ranges.
> > > 
> > > Are some of those IP cores used in different SoCs, combined in different
> > > ways, that make a modular design better ?
>
> 1. Each a node should respect a HW node. Defining a complex node that
> contain multiple register is not better, for they belong to different
> hardware. Different platforms has different hardware count, mt8195 has
> five hardwares.
> 2. Another reason is from the IOMMU point, the vcodec HW include core
> and lat hardwares, each of them connect to the independent IOMMU
> hardware for mt8195, can't write all iommu ports together, or hardware
> can't access dram data, so we must separate them.

Maybe it could help understanding the situation if the DT bindings could
include more information about the hardware architecture, such as a
block diagram for instance, and how the pieces interact with each other
?

> > Yeah, I agree with Laurent here. This way of modelling the different parts
> > of the CODEC as different pieces is the reason why you need a framework
> > to pull them together, such as the component API (I guess v4l2-async
> > could have been used as well).
>
> We must separate each hardware node, only master need to register video
> and media device, component just used for store clk/power/irq/register
> information for current hardware.
>
> > I normally don't bother with driver internals, as its up to each driver
> > author to decide what is best. However, I believe this design is too
> > convoluted, and it may lead other developers to follow the same pattern,
> > so please avoid it.
>
> According to your information, it looks that component and v4l2 async
> are ok for this architecture, only component is too convoluted(iommu
> driver also use component).
> 
> For we are not very familiar with v4l2 async, out architecture is
> designed for component include next forty patches. It is a very big
> change for out driver. I will try to spend a lot of time to change it.
> 
> > There are several ways of modelling this and initializing or probing
> > the sub-devices,
> > without using any async framework.
>
> You may misunderstand, I'm not objecting your suggestion every time,
> for our driver is designed for component api, need to spend a lot of
> time to change it in many platforms. I will change it if v4l2 async has
> many advantages then component as you said. I will try to use v4l2
> async as compared.

-- 
Regards,

Laurent Pinchart

^ permalink raw reply	[flat|nested] 41+ messages in thread

* Re: [PATCH v5, 13/15] dt-bindings: media: mtk-vcodec: Adds decoder dt-bindings for mt8192
  2021-08-29 20:54       ` Ezequiel Garcia
@ 2021-09-01  3:49         ` yunfei.dong
  2021-09-01 11:50           ` Ezequiel Garcia
  0 siblings, 1 reply; 41+ messages in thread
From: yunfei.dong @ 2021-09-01  3:49 UTC (permalink / raw)
  To: Ezequiel Garcia
  Cc: Laurent Pinchart, Alexandre Courbot, Hans Verkuil, Tzung-Bi Shih,
	Tiffany Lin, Andrew-CT Chen, Mauro Carvalho Chehab, Rob Herring,
	Matthias Brugger, Tomasz Figa, Hsin-Yi Wang, Fritz Koenig,
	Irui Wang, linux-media, devicetree, Linux Kernel Mailing List,
	linux-arm-kernel, srv_heupstream,
	moderated list:ARM/Mediatek SoC support,
	Project_Global_Chrome_Upstream_Group, George Sun

Hi Ezequiel,

Thanks for your feedback.
On Sun, 2021-08-29 at 17:54 -0300, Ezequiel Garcia wrote:
> On Tue, 17 Aug 2021 at 00:52, yunfei.dong@mediatek.com
> <yunfei.dong@mediatek.com> wrote:
> > 
> > Hi Laurent,
> > 
> > Thanks for your detail suggestion.
> > 
> > On Wed, 2021-08-11 at 20:59 +0300, Laurent Pinchart wrote:
> > > Hi Yunfei,
> > > 
> > > Thank you for the patch.
> > > 
> > > On Wed, Aug 11, 2021 at 10:57:59AM +0800, Yunfei Dong wrote:
> > > > Adds decoder dt-bindings for mt8192.
> > > > 
> > > > Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
> > > > ---
> > > > v5: no changes
> > > > 
> > > > This patch depends on "Mediatek MT8192 clock support"[1].
> > > > 
> > > > The definition of decoder clocks are in mt8192-clk.h, need to
> > > > include them in case of build fail [1].
> > > > 
> > > > [1]
> > > > 
https://patchwork.kernel.org/project/linux-mediatek/list/?series=511175
> > > > ---
> > > >  .../media/mediatek,vcodec-comp-decoder.yaml   | 172
> > > > ++++++++++++++++++
> > > >  1 file changed, 172 insertions(+)
> > > >  create mode 100644
> > > > Documentation/devicetree/bindings/media/mediatek,vcodec-comp-
> > > > decoder.yaml
> > > > 
> > > > diff --git
> > > > a/Documentation/devicetree/bindings/media/mediatek,vcodec-comp-
> > > > decoder.yaml
> > > > b/Documentation/devicetree/bindings/media/mediatek,vcodec-comp-
> > > > decoder.yaml
> > > > new file mode 100644
> > > > index 000000000000..083c89933917
> > > > --- /dev/null
> > > > +++ b/Documentation/devicetree/bindings/media/mediatek,vcodec-
> > > > comp-
> > > > decoder.yaml
> > > > @@ -0,0 +1,172 @@
> > > > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > > > +%YAML 1.2
> > > > +---
> > > > +$id:
> > > > 
http://devicetree.org/schemas/iommu/mediatek,vcodec-comp-decoder.yaml#
> > > > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > > > +
> > > > +title: Mediatek Video Decode Accelerator With Component
> > > > +
> > > > +maintainers:
> > > > +  - Yunfei Dong <yunfei.dong@mediatek.com>
> > > > +
> > > > +description: |+
> > > > +  Mediatek Video Decode is the video decode hardware present
> > > > in
> > > > Mediatek
> > > > +  SoCs which supports high resolution decoding
> > > > functionalities.
> > > > Required
> > > > +  master and component node.
> > > 
> > > This should explain how the three IP cores relate to each other.
> > > 
> > 
> > I will explain it in next patch.
> > > > +
> > > > +properties:
> > > > +  compatible:
> > > > +    oneOf:
> > > > +      - enum:
> > > > +          - mediatek,mt8192-vcodec-dec  # for lat hardware
> > > > +          - mediatek,mtk-vcodec-lat     # for core hardware
> > > > +          - mediatek,mtk-vcodec-core
> > > > +
> > > > +  reg:
> > > > +    maxItems: 1
> > > > +
> > > > +  interrupts:
> > > > +    maxItems: 1
> > > > +
> > > > +  clocks:
> > > > +    maxItems: 5
> > > > +
> > > > +  clock-names:
> > > > +    items:
> > > > +      - const: vdec-sel
> > > > +      - const: vdec-soc-vdec
> > > > +      - const: vdec-soc-lat
> > > > +      - const: vdec-vdec
> > > > +      - const: vdec-top
> > > > +
> > > > +  assigned-clocks: true
> > > > +
> > > > +  assigned-clock-parents: true
> > > > +
> > > > +  power-domains:
> > > > +    maxItems: 1
> > > > +
> > > > +  iommus:
> > > > +    minItems: 1
> > > > +    maxItems: 32
> > > > +    description: |
> > > > +      List of the hardware port in respective IOMMU block for
> > > > current Socs.
> > > > +      Refer to bindings/iommu/mediatek,iommu.yaml.
> > > > +
> > > > +  dma-ranges:
> > > > +    maxItems: 1
> > > > +    description: |
> > > > +      Describes the physical address space of IOMMU maps to
> > > > memory.
> > > > +
> > > > +  mediatek,scp:
> > > > +    $ref: /schemas/types.yaml#/definitions/phandle
> > > > +    maxItems: 1
> > > > +    description:
> > > > +      Describes point to scp.
> > > > +
> > > > +required:
> > > > +      - compatible
> > > > +      - reg
> > > > +      - iommus
> > > > +      - dma-ranges
> > > > +
> > > > +allOf:
> > > > +  - if: #master node
> > > > +      properties:
> > > > +        compatible:
> > > > +          contains:
> > > > +            enum:
> > > > +              - mediatek,mt8192-vcodec-dec  # for lat hardware
> > > > +
> > > > +    then:
> > > > +      required:
> > > > +        - mediatek,scp
> > > > +
> > > > +  - if: #component node
> > > > +      properties:
> > > > +        compatible:
> > > > +          contains:
> > > > +            enum:
> > > > +              - mediatek,mtk-vcodec-lat     # for core
> > > > hardware
> > > > +              - mediatek,mtk-vcodec-core
> > > > +
> > > > +    then:
> > > > +      required:
> > > > +        - interrupts
> > > > +        - clocks
> > > > +        - clock-names
> > > > +        - assigned-clocks
> > > > +        - assigned-clock-parents
> > > > +        - power-domains
> > > > +
> > > > +
> > > > +additionalProperties: false
> > > > +
> > > > +examples:
> > > > +  - |
> > > > +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> > > > +    #include <dt-bindings/memory/mt8192-larb-port.h>
> > > > +    #include <dt-bindings/interrupt-controller/irq.h>
> > > > +    #include <dt-bindings/clock/mt8192-clk.h>
> > > > +    #include <dt-bindings/power/mt8192-power.h>
> > > > +
> > > > +    vcodec_dec: vcodec_dec@16000000 {
> > > > +        compatible = "mediatek,mt8192-vcodec-dec";
> > > > +        reg = <0 0x16000000 0 0x1000>;             /* VDEC_SYS
> > > > */
> > > > +        mediatek,scp = <&scp>;
> > > > +        iommus = <&iommu0 M4U_PORT_L4_VDEC_MC_EXT>;
> > > > +        dma-ranges = <0x1 0x0 0x0 0x40000000 0x0 0xfff00000>;
> > > > +    };
> > > > +
> > > > +    vcodec_lat: vcodec_lat@0x16010000 {
> > > > +        compatible = "mediatek,mtk-vcodec-lat";
> > > > +        reg = <0 0x16010000 0 0x800>;              /*
> > > > VDEC_MISC */
> > > > +        interrupts = <GIC_SPI 426 IRQ_TYPE_LEVEL_HIGH 0>;
> > > > +        iommus = <&iommu0 M4U_PORT_L5_VDEC_LAT0_VLD_EXT>,
> > > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_VLD2_EXT>,
> > > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_AVC_MV_EXT>,
> > > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_PRED_RD_EXT>,
> > > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_TILE_EXT>,
> > > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_WDMA_EXT>,
> > > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_RG_CTRL_DMA_EXT>,
> > > > +             <&iommu0 M4U_PORT_L5_VDEC_UFO_ENC_EXT>;
> > > > +        dma-ranges = <0x1 0x0 0x0 0x40000000 0x0 0xfff00000>;
> > > > +        clocks = <&topckgen CLK_TOP_VDEC_SEL>,
> > > > +             <&vdecsys_soc CLK_VDEC_SOC_VDEC>,
> > > > +             <&vdecsys_soc CLK_VDEC_SOC_LAT>,
> > > > +             <&vdecsys_soc CLK_VDEC_SOC_LARB1>,
> > > > +             <&topckgen CLK_TOP_MAINPLL_D4>;
> > > > +        clock-names = "vdec-sel", "vdec-soc-vdec", "vdec-soc-
> > > > lat",
> > > > +              "vdec-vdec", "vdec-top";
> > > > +        assigned-clocks = <&topckgen CLK_TOP_VDEC_SEL>;
> > > > +        assigned-clock-parents = <&topckgen
> > > > CLK_TOP_MAINPLL_D4>;
> > > > +        power-domains = <&spm MT8192_POWER_DOMAIN_VDEC>;
> > > > +    };
> > > > +
> > > > +    vcodec_core: vcodec_core@0x16025000 {
> > > > +        compatible = "mediatek,mtk-vcodec-core";
> > > > +        reg = <0 0x16025000 0 0x1000>;             /*
> > > > VDEC_CORE_MISC */
> > > > +        interrupts = <GIC_SPI 425 IRQ_TYPE_LEVEL_HIGH 0>;
> > > > +        iommus = <&iommu0 M4U_PORT_L4_VDEC_MC_EXT>,
> > > > +             <&iommu0 M4U_PORT_L4_VDEC_UFO_EXT>,
> > > > +             <&iommu0 M4U_PORT_L4_VDEC_PP_EXT>,
> > > > +             <&iommu0 M4U_PORT_L4_VDEC_PRED_RD_EXT>,
> > > > +             <&iommu0 M4U_PORT_L4_VDEC_PRED_WR_EXT>,
> > > > +             <&iommu0 M4U_PORT_L4_VDEC_PPWRAP_EXT>,
> > > > +             <&iommu0 M4U_PORT_L4_VDEC_TILE_EXT>,
> > > > +             <&iommu0 M4U_PORT_L4_VDEC_VLD_EXT>,
> > > > +             <&iommu0 M4U_PORT_L4_VDEC_VLD2_EXT>,
> > > > +             <&iommu0 M4U_PORT_L4_VDEC_AVC_MV_EXT>,
> > > > +             <&iommu0 M4U_PORT_L4_VDEC_RG_CTRL_DMA_EXT>;
> > > > +        dma-ranges = <0x1 0x0 0x0 0x40000000 0x0 0xfff00000>;
> > > > +        clocks = <&topckgen CLK_TOP_VDEC_SEL>,
> > > > +             <&vdecsys CLK_VDEC_VDEC>,
> > > > +             <&vdecsys CLK_VDEC_LAT>,
> > > > +             <&vdecsys CLK_VDEC_LARB1>,
> > > > +             <&topckgen CLK_TOP_MAINPLL_D4>;
> > > > +        clock-names = "vdec-sel", "vdec-soc-vdec", "vdec-soc-
> > > > lat",
> > > > +              "vdec-vdec", "vdec-top";
> > > > +        assigned-clocks = <&topckgen CLK_TOP_VDEC_SEL>;
> > > > +        assigned-clock-parents = <&topckgen
> > > > CLK_TOP_MAINPLL_D4>;
> > > > +        power-domains = <&spm MT8192_POWER_DOMAIN_VDEC2>;
> > > > +    };
> > > 
> > > I'm a bit late in the game, reviewing v5 only, but I'm wondering
> > > if
> > > those IP cores need to be modelled in separate nodes. It would be
> > > much
> > > easier, from a software point of view, to have a single node,
> > > with
> > > multiple register ranges.
> > > 
> > > Are some of those IP cores used in different SoCs, combined in
> > > different
> > > ways, that make a modular design better ?
> > > 
> > 
> > Different platform has different hardware, for mt8192 only has
> > three
> > nodes. but mt8195 will has five nodes. and the clk/power/irq/iommu
> > are
> > different. It is not easy to manage all hardware at the same time
> > in
> > one node, need to enable different hardware at the same time, the
> > logic
> > will be very complex.
> > It is much easier to handle different hardware using component,
> > enable
> > different hardware when we need it.
> > 
> > 
> 
> You can still have one device-tree node for each device, which means
> you can still manage your resources (clk/power/irq/iommu) easily, but
> doing
> this so that it avoids an async framework to pull the parts together.
> 
It mean that v4l2 async also can't be used?
> I gave you this feedback several times, and you have been objecting
> it
> every time  without even trying to consider a different approach.
> 
I'm not objecting your suggestion every time, for our driver is
designed for component api, need to spend a lot of time to change it in
many platforms. We need to get a final solution for this architecture,
or it's not easy to change all patches in the feature.
> Thanks,
> Ezequiel
1. Each a node should respect a HW node. Defining a complex node that
contain multiple register is not better, for they belong to different
hardware. Different platforms has different hardware count, mt8195 has
five hardwares.
2. Another reason is from the IOMMU point, the vcodec HW include core
and lat hardwares, each of them connect to the independent IOMMU
hardware for mt8195, can't write all iommu ports together, or hardware
can't access dram data, so we must separate them.

For these limitation, can't combine all hardware together. I will write
the hardware diagram in next patch.

Thanks,
Yunfei Dong

^ permalink raw reply	[flat|nested] 41+ messages in thread

* Re: [PATCH v5, 13/15] dt-bindings: media: mtk-vcodec: Adds decoder dt-bindings for mt8192
  2021-09-01  3:49         ` yunfei.dong
@ 2021-09-01 11:50           ` Ezequiel Garcia
  2021-09-02  6:09             ` yunfei.dong
  0 siblings, 1 reply; 41+ messages in thread
From: Ezequiel Garcia @ 2021-09-01 11:50 UTC (permalink / raw)
  To: yunfei.dong
  Cc: Laurent Pinchart, Alexandre Courbot, Hans Verkuil, Tzung-Bi Shih,
	Tiffany Lin, Andrew-CT Chen, Mauro Carvalho Chehab, Rob Herring,
	Matthias Brugger, Tomasz Figa, Hsin-Yi Wang, Fritz Koenig,
	Irui Wang, linux-media, devicetree, Linux Kernel Mailing List,
	linux-arm-kernel, srv_heupstream,
	moderated list:ARM/Mediatek SoC support,
	Project_Global_Chrome_Upstream_Group, George Sun

On Wed, 1 Sept 2021 at 00:49, yunfei.dong@mediatek.com
<yunfei.dong@mediatek.com> wrote:
>
> Hi Ezequiel,
>
> Thanks for your feedback.
> On Sun, 2021-08-29 at 17:54 -0300, Ezequiel Garcia wrote:
> > On Tue, 17 Aug 2021 at 00:52, yunfei.dong@mediatek.com
> > <yunfei.dong@mediatek.com> wrote:
> > >
> > > Hi Laurent,
> > >
> > > Thanks for your detail suggestion.
> > >
> > > On Wed, 2021-08-11 at 20:59 +0300, Laurent Pinchart wrote:
> > > > Hi Yunfei,
> > > >
> > > > Thank you for the patch.
> > > >
> > > > On Wed, Aug 11, 2021 at 10:57:59AM +0800, Yunfei Dong wrote:
> > > > > Adds decoder dt-bindings for mt8192.
> > > > >
> > > > > Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
> > > > > ---
> > > > > v5: no changes
> > > > >
> > > > > This patch depends on "Mediatek MT8192 clock support"[1].
> > > > >
> > > > > The definition of decoder clocks are in mt8192-clk.h, need to
> > > > > include them in case of build fail [1].
> > > > >
> > > > > [1]
> > > > >
> https://patchwork.kernel.org/project/linux-mediatek/list/?series=511175
> > > > > ---
> > > > >  .../media/mediatek,vcodec-comp-decoder.yaml   | 172
> > > > > ++++++++++++++++++
> > > > >  1 file changed, 172 insertions(+)
> > > > >  create mode 100644
> > > > > Documentation/devicetree/bindings/media/mediatek,vcodec-comp-
> > > > > decoder.yaml
> > > > >
> > > > > diff --git
> > > > > a/Documentation/devicetree/bindings/media/mediatek,vcodec-comp-
> > > > > decoder.yaml
> > > > > b/Documentation/devicetree/bindings/media/mediatek,vcodec-comp-
> > > > > decoder.yaml
> > > > > new file mode 100644
> > > > > index 000000000000..083c89933917
> > > > > --- /dev/null
> > > > > +++ b/Documentation/devicetree/bindings/media/mediatek,vcodec-
> > > > > comp-
> > > > > decoder.yaml
> > > > > @@ -0,0 +1,172 @@
> > > > > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > > > > +%YAML 1.2
> > > > > +---
> > > > > +$id:
> > > > >
> http://devicetree.org/schemas/iommu/mediatek,vcodec-comp-decoder.yaml#
> > > > > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > > > > +
> > > > > +title: Mediatek Video Decode Accelerator With Component
> > > > > +
> > > > > +maintainers:
> > > > > +  - Yunfei Dong <yunfei.dong@mediatek.com>
> > > > > +
> > > > > +description: |+
> > > > > +  Mediatek Video Decode is the video decode hardware present
> > > > > in
> > > > > Mediatek
> > > > > +  SoCs which supports high resolution decoding
> > > > > functionalities.
> > > > > Required
> > > > > +  master and component node.
> > > >
> > > > This should explain how the three IP cores relate to each other.
> > > >
> > >
> > > I will explain it in next patch.
> > > > > +
> > > > > +properties:
> > > > > +  compatible:
> > > > > +    oneOf:
> > > > > +      - enum:
> > > > > +          - mediatek,mt8192-vcodec-dec  # for lat hardware
> > > > > +          - mediatek,mtk-vcodec-lat     # for core hardware
> > > > > +          - mediatek,mtk-vcodec-core
> > > > > +
> > > > > +  reg:
> > > > > +    maxItems: 1
> > > > > +
> > > > > +  interrupts:
> > > > > +    maxItems: 1
> > > > > +
> > > > > +  clocks:
> > > > > +    maxItems: 5
> > > > > +
> > > > > +  clock-names:
> > > > > +    items:
> > > > > +      - const: vdec-sel
> > > > > +      - const: vdec-soc-vdec
> > > > > +      - const: vdec-soc-lat
> > > > > +      - const: vdec-vdec
> > > > > +      - const: vdec-top
> > > > > +
> > > > > +  assigned-clocks: true
> > > > > +
> > > > > +  assigned-clock-parents: true
> > > > > +
> > > > > +  power-domains:
> > > > > +    maxItems: 1
> > > > > +
> > > > > +  iommus:
> > > > > +    minItems: 1
> > > > > +    maxItems: 32
> > > > > +    description: |
> > > > > +      List of the hardware port in respective IOMMU block for
> > > > > current Socs.
> > > > > +      Refer to bindings/iommu/mediatek,iommu.yaml.
> > > > > +
> > > > > +  dma-ranges:
> > > > > +    maxItems: 1
> > > > > +    description: |
> > > > > +      Describes the physical address space of IOMMU maps to
> > > > > memory.
> > > > > +
> > > > > +  mediatek,scp:
> > > > > +    $ref: /schemas/types.yaml#/definitions/phandle
> > > > > +    maxItems: 1
> > > > > +    description:
> > > > > +      Describes point to scp.
> > > > > +
> > > > > +required:
> > > > > +      - compatible
> > > > > +      - reg
> > > > > +      - iommus
> > > > > +      - dma-ranges
> > > > > +
> > > > > +allOf:
> > > > > +  - if: #master node
> > > > > +      properties:
> > > > > +        compatible:
> > > > > +          contains:
> > > > > +            enum:
> > > > > +              - mediatek,mt8192-vcodec-dec  # for lat hardware
> > > > > +
> > > > > +    then:
> > > > > +      required:
> > > > > +        - mediatek,scp
> > > > > +
> > > > > +  - if: #component node
> > > > > +      properties:
> > > > > +        compatible:
> > > > > +          contains:
> > > > > +            enum:
> > > > > +              - mediatek,mtk-vcodec-lat     # for core
> > > > > hardware
> > > > > +              - mediatek,mtk-vcodec-core
> > > > > +
> > > > > +    then:
> > > > > +      required:
> > > > > +        - interrupts
> > > > > +        - clocks
> > > > > +        - clock-names
> > > > > +        - assigned-clocks
> > > > > +        - assigned-clock-parents
> > > > > +        - power-domains
> > > > > +
> > > > > +
> > > > > +additionalProperties: false
> > > > > +
> > > > > +examples:
> > > > > +  - |
> > > > > +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> > > > > +    #include <dt-bindings/memory/mt8192-larb-port.h>
> > > > > +    #include <dt-bindings/interrupt-controller/irq.h>
> > > > > +    #include <dt-bindings/clock/mt8192-clk.h>
> > > > > +    #include <dt-bindings/power/mt8192-power.h>
> > > > > +
> > > > > +    vcodec_dec: vcodec_dec@16000000 {
> > > > > +        compatible = "mediatek,mt8192-vcodec-dec";
> > > > > +        reg = <0 0x16000000 0 0x1000>;             /* VDEC_SYS
> > > > > */
> > > > > +        mediatek,scp = <&scp>;
> > > > > +        iommus = <&iommu0 M4U_PORT_L4_VDEC_MC_EXT>;
> > > > > +        dma-ranges = <0x1 0x0 0x0 0x40000000 0x0 0xfff00000>;
> > > > > +    };
> > > > > +
> > > > > +    vcodec_lat: vcodec_lat@0x16010000 {
> > > > > +        compatible = "mediatek,mtk-vcodec-lat";
> > > > > +        reg = <0 0x16010000 0 0x800>;              /*
> > > > > VDEC_MISC */
> > > > > +        interrupts = <GIC_SPI 426 IRQ_TYPE_LEVEL_HIGH 0>;
> > > > > +        iommus = <&iommu0 M4U_PORT_L5_VDEC_LAT0_VLD_EXT>,
> > > > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_VLD2_EXT>,
> > > > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_AVC_MV_EXT>,
> > > > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_PRED_RD_EXT>,
> > > > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_TILE_EXT>,
> > > > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_WDMA_EXT>,
> > > > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_RG_CTRL_DMA_EXT>,
> > > > > +             <&iommu0 M4U_PORT_L5_VDEC_UFO_ENC_EXT>;
> > > > > +        dma-ranges = <0x1 0x0 0x0 0x40000000 0x0 0xfff00000>;
> > > > > +        clocks = <&topckgen CLK_TOP_VDEC_SEL>,
> > > > > +             <&vdecsys_soc CLK_VDEC_SOC_VDEC>,
> > > > > +             <&vdecsys_soc CLK_VDEC_SOC_LAT>,
> > > > > +             <&vdecsys_soc CLK_VDEC_SOC_LARB1>,
> > > > > +             <&topckgen CLK_TOP_MAINPLL_D4>;
> > > > > +        clock-names = "vdec-sel", "vdec-soc-vdec", "vdec-soc-
> > > > > lat",
> > > > > +              "vdec-vdec", "vdec-top";
> > > > > +        assigned-clocks = <&topckgen CLK_TOP_VDEC_SEL>;
> > > > > +        assigned-clock-parents = <&topckgen
> > > > > CLK_TOP_MAINPLL_D4>;
> > > > > +        power-domains = <&spm MT8192_POWER_DOMAIN_VDEC>;
> > > > > +    };
> > > > > +
> > > > > +    vcodec_core: vcodec_core@0x16025000 {
> > > > > +        compatible = "mediatek,mtk-vcodec-core";
> > > > > +        reg = <0 0x16025000 0 0x1000>;             /*
> > > > > VDEC_CORE_MISC */
> > > > > +        interrupts = <GIC_SPI 425 IRQ_TYPE_LEVEL_HIGH 0>;
> > > > > +        iommus = <&iommu0 M4U_PORT_L4_VDEC_MC_EXT>,
> > > > > +             <&iommu0 M4U_PORT_L4_VDEC_UFO_EXT>,
> > > > > +             <&iommu0 M4U_PORT_L4_VDEC_PP_EXT>,
> > > > > +             <&iommu0 M4U_PORT_L4_VDEC_PRED_RD_EXT>,
> > > > > +             <&iommu0 M4U_PORT_L4_VDEC_PRED_WR_EXT>,
> > > > > +             <&iommu0 M4U_PORT_L4_VDEC_PPWRAP_EXT>,
> > > > > +             <&iommu0 M4U_PORT_L4_VDEC_TILE_EXT>,
> > > > > +             <&iommu0 M4U_PORT_L4_VDEC_VLD_EXT>,
> > > > > +             <&iommu0 M4U_PORT_L4_VDEC_VLD2_EXT>,
> > > > > +             <&iommu0 M4U_PORT_L4_VDEC_AVC_MV_EXT>,
> > > > > +             <&iommu0 M4U_PORT_L4_VDEC_RG_CTRL_DMA_EXT>;
> > > > > +        dma-ranges = <0x1 0x0 0x0 0x40000000 0x0 0xfff00000>;
> > > > > +        clocks = <&topckgen CLK_TOP_VDEC_SEL>,
> > > > > +             <&vdecsys CLK_VDEC_VDEC>,
> > > > > +             <&vdecsys CLK_VDEC_LAT>,
> > > > > +             <&vdecsys CLK_VDEC_LARB1>,
> > > > > +             <&topckgen CLK_TOP_MAINPLL_D4>;
> > > > > +        clock-names = "vdec-sel", "vdec-soc-vdec", "vdec-soc-
> > > > > lat",
> > > > > +              "vdec-vdec", "vdec-top";
> > > > > +        assigned-clocks = <&topckgen CLK_TOP_VDEC_SEL>;
> > > > > +        assigned-clock-parents = <&topckgen
> > > > > CLK_TOP_MAINPLL_D4>;
> > > > > +        power-domains = <&spm MT8192_POWER_DOMAIN_VDEC2>;
> > > > > +    };
> > > >
> > > > I'm a bit late in the game, reviewing v5 only, but I'm wondering
> > > > if
> > > > those IP cores need to be modelled in separate nodes. It would be
> > > > much
> > > > easier, from a software point of view, to have a single node,
> > > > with
> > > > multiple register ranges.
> > > >
> > > > Are some of those IP cores used in different SoCs, combined in
> > > > different
> > > > ways, that make a modular design better ?
> > > >
> > >
> > > Different platform has different hardware, for mt8192 only has
> > > three
> > > nodes. but mt8195 will has five nodes. and the clk/power/irq/iommu
> > > are
> > > different. It is not easy to manage all hardware at the same time
> > > in
> > > one node, need to enable different hardware at the same time, the
> > > logic
> > > will be very complex.
> > > It is much easier to handle different hardware using component,
> > > enable
> > > different hardware when we need it.
> > >
> > >
> >
> > You can still have one device-tree node for each device, which means
> > you can still manage your resources (clk/power/irq/iommu) easily, but
> > doing
> > this so that it avoids an async framework to pull the parts together.
> >
> It mean that v4l2 async also can't be used?

No, I don't think it's needed. I will take a look at the device tree
and see if I can show you an alternative approach that doesn't
require an async framework.

> > I gave you this feedback several times, and you have been objecting
> > it
> > every time  without even trying to consider a different approach.
> >
> I'm not objecting your suggestion every time, for our driver is
> designed for component api, need to spend a lot of time to change it in
> many platforms. We need to get a final solution for this architecture,
> or it's not easy to change all patches in the feature.
> > Thanks,
> > Ezequiel
> 1. Each a node should respect a HW node. Defining a complex node that
> contain multiple register is not better, for they belong to different
> hardware. Different platforms has different hardware count, mt8195 has
> five hardwares.
> 2. Another reason is from the IOMMU point, the vcodec HW include core
> and lat hardwares, each of them connect to the independent IOMMU
> hardware for mt8195, can't write all iommu ports together, or hardware
> can't access dram data, so we must separate them.
>
> For these limitation, can't combine all hardware together. I will write
> the hardware diagram in next patch.
>

No need for another patch, you can write that hardware diagram
now, so we can help with some design ideas.

Thanks!
Ezequiel

^ permalink raw reply	[flat|nested] 41+ messages in thread

* Re: [PATCH v5, 13/15] dt-bindings: media: mtk-vcodec: Adds decoder dt-bindings for mt8192
  2021-09-01 11:50           ` Ezequiel Garcia
@ 2021-09-02  6:09             ` yunfei.dong
  2021-09-03  4:02               ` Chen-Yu Tsai
  0 siblings, 1 reply; 41+ messages in thread
From: yunfei.dong @ 2021-09-02  6:09 UTC (permalink / raw)
  To: Ezequiel Garcia
  Cc: Laurent Pinchart, Alexandre Courbot, Hans Verkuil, Tzung-Bi Shih,
	Tiffany Lin, Andrew-CT Chen, Mauro Carvalho Chehab, Rob Herring,
	Matthias Brugger, Tomasz Figa, Hsin-Yi Wang, Fritz Koenig,
	Irui Wang, linux-media, devicetree, Linux Kernel Mailing List,
	linux-arm-kernel, srv_heupstream,
	moderated list:ARM/Mediatek SoC support,
	Project_Global_Chrome_Upstream_Group, George Sun

Hi Ezequiel,

Thanks for your suggestion.
On Wed, 2021-09-01 at 08:50 -0300, Ezequiel Garcia wrote:
> On Wed, 1 Sept 2021 at 00:49, yunfei.dong@mediatek.com
> <yunfei.dong@mediatek.com> wrote:
> > 
> > Hi Ezequiel,
> > 
> > Thanks for your feedback.
> > On Sun, 2021-08-29 at 17:54 -0300, Ezequiel Garcia wrote:
> > > On Tue, 17 Aug 2021 at 00:52, yunfei.dong@mediatek.com
> > > <yunfei.dong@mediatek.com> wrote:
> > > > 
> > > > Hi Laurent,
> > > > 
> > > > Thanks for your detail suggestion.
> > > > 
> > > > On Wed, 2021-08-11 at 20:59 +0300, Laurent Pinchart wrote:
> > > > > Hi Yunfei,
> > > > > 
> > > > > Thank you for the patch.
> > > > > 
> > > > > On Wed, Aug 11, 2021 at 10:57:59AM +0800, Yunfei Dong wrote:
> > > > > > Adds decoder dt-bindings for mt8192.
> > > > > > 
> > > > > > Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
> > > > > > ---
> > > > > > v5: no changes
> > > > > > 
> > > > > > This patch depends on "Mediatek MT8192 clock support"[1].
> > > > > > 
> > > > > > The definition of decoder clocks are in mt8192-clk.h, need
> > > > > > to
> > > > > > include them in case of build fail [1].
> > > > > > 
> > > > > > [1]
> > > > > > 
> > 
> > 
https://patchwork.kernel.org/project/linux-mediatek/list/?series=511175
> > > > > > ---
> > > > > >  .../media/mediatek,vcodec-comp-decoder.yaml   | 172
> > > > > > ++++++++++++++++++
> > > > > >  1 file changed, 172 insertions(+)
> > > > > >  create mode 100644
> > > > > > Documentation/devicetree/bindings/media/mediatek,vcodec-
> > > > > > comp-
> > > > > > decoder.yaml
> > > > > > 
> > > > > > diff --git
> > > > > > a/Documentation/devicetree/bindings/media/mediatek,vcodec-
> > > > > > comp-
> > > > > > decoder.yaml
> > > > > > b/Documentation/devicetree/bindings/media/mediatek,vcodec-
> > > > > > comp-
> > > > > > decoder.yaml
> > > > > > new file mode 100644
> > > > > > index 000000000000..083c89933917
> > > > > > --- /dev/null
> > > > > > +++
> > > > > > b/Documentation/devicetree/bindings/media/mediatek,vcodec-
> > > > > > comp-
> > > > > > decoder.yaml
> > > > > > @@ -0,0 +1,172 @@
> > > > > > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > > > > > +%YAML 1.2
> > > > > > +---
> > > > > > +$id:
> > > > > > 
> > 
> > 
http://devicetree.org/schemas/iommu/mediatek,vcodec-comp-decoder.yaml#
> > > > > > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > > > > > +
> > > > > > +title: Mediatek Video Decode Accelerator With Component
> > > > > > +
> > > > > > +maintainers:
> > > > > > +  - Yunfei Dong <yunfei.dong@mediatek.com>
> > > > > > +
> > > > > > +description: |+
> > > > > > +  Mediatek Video Decode is the video decode hardware
> > > > > > present
> > > > > > in
> > > > > > Mediatek
> > > > > > +  SoCs which supports high resolution decoding
> > > > > > functionalities.
> > > > > > Required
> > > > > > +  master and component node.
> > > > > 
> > > > > This should explain how the three IP cores relate to each
> > > > > other.
> > > > > 
> > > > 
> > > > I will explain it in next patch.
> > > > > > +
> > > > > > +properties:
> > > > > > +  compatible:
> > > > > > +    oneOf:
> > > > > > +      - enum:
> > > > > > +          - mediatek,mt8192-vcodec-dec  # for lat hardware
> > > > > > +          - mediatek,mtk-vcodec-lat     # for core
> > > > > > hardware
> > > > > > +          - mediatek,mtk-vcodec-core
> > > > > > +
> > > > > > +  reg:
> > > > > > +    maxItems: 1
> > > > > > +
> > > > > > +  interrupts:
> > > > > > +    maxItems: 1
> > > > > > +
> > > > > > +  clocks:
> > > > > > +    maxItems: 5
> > > > > > +
> > > > > > +  clock-names:
> > > > > > +    items:
> > > > > > +      - const: vdec-sel
> > > > > > +      - const: vdec-soc-vdec
> > > > > > +      - const: vdec-soc-lat
> > > > > > +      - const: vdec-vdec
> > > > > > +      - const: vdec-top
> > > > > > +
> > > > > > +  assigned-clocks: true
> > > > > > +
> > > > > > +  assigned-clock-parents: true
> > > > > > +
> > > > > > +  power-domains:
> > > > > > +    maxItems: 1
> > > > > > +
> > > > > > +  iommus:
> > > > > > +    minItems: 1
> > > > > > +    maxItems: 32
> > > > > > +    description: |
> > > > > > +      List of the hardware port in respective IOMMU block
> > > > > > for
> > > > > > current Socs.
> > > > > > +      Refer to bindings/iommu/mediatek,iommu.yaml.
> > > > > > +
> > > > > > +  dma-ranges:
> > > > > > +    maxItems: 1
> > > > > > +    description: |
> > > > > > +      Describes the physical address space of IOMMU maps
> > > > > > to
> > > > > > memory.
> > > > > > +
> > > > > > +  mediatek,scp:
> > > > > > +    $ref: /schemas/types.yaml#/definitions/phandle
> > > > > > +    maxItems: 1
> > > > > > +    description:
> > > > > > +      Describes point to scp.
> > > > > > +
> > > > > > +required:
> > > > > > +      - compatible
> > > > > > +      - reg
> > > > > > +      - iommus
> > > > > > +      - dma-ranges
> > > > > > +
> > > > > > +allOf:
> > > > > > +  - if: #master node
> > > > > > +      properties:
> > > > > > +        compatible:
> > > > > > +          contains:
> > > > > > +            enum:
> > > > > > +              - mediatek,mt8192-vcodec-dec  # for lat
> > > > > > hardware
> > > > > > +
> > > > > > +    then:
> > > > > > +      required:
> > > > > > +        - mediatek,scp
> > > > > > +
> > > > > > +  - if: #component node
> > > > > > +      properties:
> > > > > > +        compatible:
> > > > > > +          contains:
> > > > > > +            enum:
> > > > > > +              - mediatek,mtk-vcodec-lat     # for core
> > > > > > hardware
> > > > > > +              - mediatek,mtk-vcodec-core
> > > > > > +
> > > > > > +    then:
> > > > > > +      required:
> > > > > > +        - interrupts
> > > > > > +        - clocks
> > > > > > +        - clock-names
> > > > > > +        - assigned-clocks
> > > > > > +        - assigned-clock-parents
> > > > > > +        - power-domains
> > > > > > +
> > > > > > +
> > > > > > +additionalProperties: false
> > > > > > +
> > > > > > +examples:
> > > > > > +  - |
> > > > > > +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> > > > > > +    #include <dt-bindings/memory/mt8192-larb-port.h>
> > > > > > +    #include <dt-bindings/interrupt-controller/irq.h>
> > > > > > +    #include <dt-bindings/clock/mt8192-clk.h>
> > > > > > +    #include <dt-bindings/power/mt8192-power.h>
> > > > > > +
> > > > > > +    vcodec_dec: vcodec_dec@16000000 {
> > > > > > +        compatible = "mediatek,mt8192-vcodec-dec";
> > > > > > +        reg = <0 0x16000000 0 0x1000>;             /*
> > > > > > VDEC_SYS
> > > > > > */
> > > > > > +        mediatek,scp = <&scp>;
> > > > > > +        iommus = <&iommu0 M4U_PORT_L4_VDEC_MC_EXT>;
> > > > > > +        dma-ranges = <0x1 0x0 0x0 0x40000000 0x0
> > > > > > 0xfff00000>;
> > > > > > +    };
> > > > > > +
> > > > > > +    vcodec_lat: vcodec_lat@0x16010000 {
> > > > > > +        compatible = "mediatek,mtk-vcodec-lat";
> > > > > > +        reg = <0 0x16010000 0 0x800>;              /*
> > > > > > VDEC_MISC */
> > > > > > +        interrupts = <GIC_SPI 426 IRQ_TYPE_LEVEL_HIGH 0>;
> > > > > > +        iommus = <&iommu0 M4U_PORT_L5_VDEC_LAT0_VLD_EXT>,
> > > > > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_VLD2_EXT>,
> > > > > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_AVC_MV_EXT>,
> > > > > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_PRED_RD_EXT>,
> > > > > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_TILE_EXT>,
> > > > > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_WDMA_EXT>,
> > > > > > +             <&iommu0
> > > > > > M4U_PORT_L5_VDEC_LAT0_RG_CTRL_DMA_EXT>,
> > > > > > +             <&iommu0 M4U_PORT_L5_VDEC_UFO_ENC_EXT>;
> > > > > > +        dma-ranges = <0x1 0x0 0x0 0x40000000 0x0
> > > > > > 0xfff00000>;
> > > > > > +        clocks = <&topckgen CLK_TOP_VDEC_SEL>,
> > > > > > +             <&vdecsys_soc CLK_VDEC_SOC_VDEC>,
> > > > > > +             <&vdecsys_soc CLK_VDEC_SOC_LAT>,
> > > > > > +             <&vdecsys_soc CLK_VDEC_SOC_LARB1>,
> > > > > > +             <&topckgen CLK_TOP_MAINPLL_D4>;
> > > > > > +        clock-names = "vdec-sel", "vdec-soc-vdec", "vdec-
> > > > > > soc-
> > > > > > lat",
> > > > > > +              "vdec-vdec", "vdec-top";
> > > > > > +        assigned-clocks = <&topckgen CLK_TOP_VDEC_SEL>;
> > > > > > +        assigned-clock-parents = <&topckgen
> > > > > > CLK_TOP_MAINPLL_D4>;
> > > > > > +        power-domains = <&spm MT8192_POWER_DOMAIN_VDEC>;
> > > > > > +    };
> > > > > > +
> > > > > > +    vcodec_core: vcodec_core@0x16025000 {
> > > > > > +        compatible = "mediatek,mtk-vcodec-core";
> > > > > > +        reg = <0 0x16025000 0 0x1000>;             /*
> > > > > > VDEC_CORE_MISC */
> > > > > > +        interrupts = <GIC_SPI 425 IRQ_TYPE_LEVEL_HIGH 0>;
> > > > > > +        iommus = <&iommu0 M4U_PORT_L4_VDEC_MC_EXT>,
> > > > > > +             <&iommu0 M4U_PORT_L4_VDEC_UFO_EXT>,
> > > > > > +             <&iommu0 M4U_PORT_L4_VDEC_PP_EXT>,
> > > > > > +             <&iommu0 M4U_PORT_L4_VDEC_PRED_RD_EXT>,
> > > > > > +             <&iommu0 M4U_PORT_L4_VDEC_PRED_WR_EXT>,
> > > > > > +             <&iommu0 M4U_PORT_L4_VDEC_PPWRAP_EXT>,
> > > > > > +             <&iommu0 M4U_PORT_L4_VDEC_TILE_EXT>,
> > > > > > +             <&iommu0 M4U_PORT_L4_VDEC_VLD_EXT>,
> > > > > > +             <&iommu0 M4U_PORT_L4_VDEC_VLD2_EXT>,
> > > > > > +             <&iommu0 M4U_PORT_L4_VDEC_AVC_MV_EXT>,
> > > > > > +             <&iommu0 M4U_PORT_L4_VDEC_RG_CTRL_DMA_EXT>;
> > > > > > +        dma-ranges = <0x1 0x0 0x0 0x40000000 0x0
> > > > > > 0xfff00000>;
> > > > > > +        clocks = <&topckgen CLK_TOP_VDEC_SEL>,
> > > > > > +             <&vdecsys CLK_VDEC_VDEC>,
> > > > > > +             <&vdecsys CLK_VDEC_LAT>,
> > > > > > +             <&vdecsys CLK_VDEC_LARB1>,
> > > > > > +             <&topckgen CLK_TOP_MAINPLL_D4>;
> > > > > > +        clock-names = "vdec-sel", "vdec-soc-vdec", "vdec-
> > > > > > soc-
> > > > > > lat",
> > > > > > +              "vdec-vdec", "vdec-top";
> > > > > > +        assigned-clocks = <&topckgen CLK_TOP_VDEC_SEL>;
> > > > > > +        assigned-clock-parents = <&topckgen
> > > > > > CLK_TOP_MAINPLL_D4>;
> > > > > > +        power-domains = <&spm MT8192_POWER_DOMAIN_VDEC2>;
> > > > > > +    };
> > > > > 
> > > > > I'm a bit late in the game, reviewing v5 only, but I'm
> > > > > wondering
> > > > > if
> > > > > those IP cores need to be modelled in separate nodes. It
> > > > > would be
> > > > > much
> > > > > easier, from a software point of view, to have a single node,
> > > > > with
> > > > > multiple register ranges.
> > > > > 
> > > > > Are some of those IP cores used in different SoCs, combined
> > > > > in
> > > > > different
> > > > > ways, that make a modular design better ?
> > > > > 
> > > > 
> > > > Different platform has different hardware, for mt8192 only has
> > > > three
> > > > nodes. but mt8195 will has five nodes. and the
> > > > clk/power/irq/iommu
> > > > are
> > > > different. It is not easy to manage all hardware at the same
> > > > time
> > > > in
> > > > one node, need to enable different hardware at the same time,
> > > > the
> > > > logic
> > > > will be very complex.
> > > > It is much easier to handle different hardware using component,
> > > > enable
> > > > different hardware when we need it.
> > > > 
> > > > 
> > > 
> > > You can still have one device-tree node for each device, which
> > > means
> > > you can still manage your resources (clk/power/irq/iommu) easily,
> > > but
> > > doing
> > > this so that it avoids an async framework to pull the parts
> > > together.
> > > 
> > 
> > It mean that v4l2 async also can't be used?
> 
> No, I don't think it's needed. I will take a look at the device tree
> and see if I can show you an alternative approach that doesn't
> require an async framework.
> 
Thanks.
> > > I gave you this feedback several times, and you have been
> > > objecting
> > > it
> > > every time  without even trying to consider a different approach.
> > > 
> > 
> > I'm not objecting your suggestion every time, for our driver is
> > designed for component api, need to spend a lot of time to change
> > it in
> > many platforms. We need to get a final solution for this
> > architecture,
> > or it's not easy to change all patches in the feature.
> > > Thanks,
> > > Ezequiel
> > 
> > 1. Each a node should respect a HW node. Defining a complex node
> > that
> > contain multiple register is not better, for they belong to
> > different
> > hardware. Different platforms has different hardware count, mt8195
> > has
> > five hardwares.
> > 2. Another reason is from the IOMMU point, the vcodec HW include
> > core
> > and lat hardwares, each of them connect to the independent IOMMU
> > hardware for mt8195, can't write all iommu ports together, or
> > hardware
> > can't access dram data, so we must separate them.
> > 
> > For these limitation, can't combine all hardware together. I will
> > write
> > the hardware diagram in next patch.
> > 
> 
> No need for another patch, you can write that hardware diagram
> now, so we can help with some design ideas.
> 
You can see the block diagram in patch:

https://patchwork.linuxtv.org/project/linux-media/patch/20210901083215.25984-14-yunfei.dong@mediatek.com/

> Thanks!
> Ezequiel

^ permalink raw reply	[flat|nested] 41+ messages in thread

* Re: [PATCH v5, 13/15] dt-bindings: media: mtk-vcodec: Adds decoder dt-bindings for mt8192
  2021-09-02  6:09             ` yunfei.dong
@ 2021-09-03  4:02               ` Chen-Yu Tsai
  0 siblings, 0 replies; 41+ messages in thread
From: Chen-Yu Tsai @ 2021-09-03  4:02 UTC (permalink / raw)
  To: yunfei.dong
  Cc: Ezequiel Garcia, Laurent Pinchart, Alexandre Courbot,
	Hans Verkuil, Tzung-Bi Shih, Tiffany Lin, Andrew-CT Chen,
	Mauro Carvalho Chehab, Rob Herring, Matthias Brugger,
	Tomasz Figa, Hsin-Yi Wang, Fritz Koenig, Irui Wang, linux-media,
	devicetree, Linux Kernel Mailing List, linux-arm-kernel,
	srv_heupstream, moderated list:ARM/Mediatek SoC support,
	Project_Global_Chrome_Upstream_Group, George Sun

On Thu, Sep 2, 2021 at 2:09 PM yunfei.dong@mediatek.com
<yunfei.dong@mediatek.com> wrote:
>
> Hi Ezequiel,
>
> Thanks for your suggestion.
> On Wed, 2021-09-01 at 08:50 -0300, Ezequiel Garcia wrote:
> > On Wed, 1 Sept 2021 at 00:49, yunfei.dong@mediatek.com
> > <yunfei.dong@mediatek.com> wrote:
> > >
> > > Hi Ezequiel,
> > >
> > > Thanks for your feedback.
> > > On Sun, 2021-08-29 at 17:54 -0300, Ezequiel Garcia wrote:
> > > > On Tue, 17 Aug 2021 at 00:52, yunfei.dong@mediatek.com
> > > > <yunfei.dong@mediatek.com> wrote:
> > > > >
> > > > > Hi Laurent,
> > > > >
> > > > > Thanks for your detail suggestion.
> > > > >
> > > > > On Wed, 2021-08-11 at 20:59 +0300, Laurent Pinchart wrote:
> > > > > > Hi Yunfei,
> > > > > >
> > > > > > Thank you for the patch.
> > > > > >
> > > > > > On Wed, Aug 11, 2021 at 10:57:59AM +0800, Yunfei Dong wrote:
> > > > > > > Adds decoder dt-bindings for mt8192.
> > > > > > >
> > > > > > > Signed-off-by: Yunfei Dong <yunfei.dong@mediatek.com>
> > > > > > > ---
> > > > > > > v5: no changes
> > > > > > >
> > > > > > > This patch depends on "Mediatek MT8192 clock support"[1].
> > > > > > >
> > > > > > > The definition of decoder clocks are in mt8192-clk.h, need
> > > > > > > to
> > > > > > > include them in case of build fail [1].
> > > > > > >
> > > > > > > [1]
> > > > > > >
> > >
> > >
> https://patchwork.kernel.org/project/linux-mediatek/list/?series=511175
> > > > > > > ---
> > > > > > >  .../media/mediatek,vcodec-comp-decoder.yaml   | 172
> > > > > > > ++++++++++++++++++
> > > > > > >  1 file changed, 172 insertions(+)
> > > > > > >  create mode 100644
> > > > > > > Documentation/devicetree/bindings/media/mediatek,vcodec-
> > > > > > > comp-
> > > > > > > decoder.yaml
> > > > > > >
> > > > > > > diff --git
> > > > > > > a/Documentation/devicetree/bindings/media/mediatek,vcodec-
> > > > > > > comp-
> > > > > > > decoder.yaml
> > > > > > > b/Documentation/devicetree/bindings/media/mediatek,vcodec-
> > > > > > > comp-
> > > > > > > decoder.yaml
> > > > > > > new file mode 100644
> > > > > > > index 000000000000..083c89933917
> > > > > > > --- /dev/null
> > > > > > > +++
> > > > > > > b/Documentation/devicetree/bindings/media/mediatek,vcodec-
> > > > > > > comp-
> > > > > > > decoder.yaml
> > > > > > > @@ -0,0 +1,172 @@
> > > > > > > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > > > > > > +%YAML 1.2
> > > > > > > +---
> > > > > > > +$id:
> > > > > > >
> > >
> > >
> http://devicetree.org/schemas/iommu/mediatek,vcodec-comp-decoder.yaml#
> > > > > > > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > > > > > > +
> > > > > > > +title: Mediatek Video Decode Accelerator With Component
> > > > > > > +
> > > > > > > +maintainers:
> > > > > > > +  - Yunfei Dong <yunfei.dong@mediatek.com>
> > > > > > > +
> > > > > > > +description: |+
> > > > > > > +  Mediatek Video Decode is the video decode hardware
> > > > > > > present
> > > > > > > in
> > > > > > > Mediatek
> > > > > > > +  SoCs which supports high resolution decoding
> > > > > > > functionalities.
> > > > > > > Required
> > > > > > > +  master and component node.
> > > > > >
> > > > > > This should explain how the three IP cores relate to each
> > > > > > other.
> > > > > >
> > > > >
> > > > > I will explain it in next patch.
> > > > > > > +
> > > > > > > +properties:
> > > > > > > +  compatible:
> > > > > > > +    oneOf:
> > > > > > > +      - enum:
> > > > > > > +          - mediatek,mt8192-vcodec-dec  # for lat hardware
> > > > > > > +          - mediatek,mtk-vcodec-lat     # for core
> > > > > > > hardware
> > > > > > > +          - mediatek,mtk-vcodec-core
> > > > > > > +
> > > > > > > +  reg:
> > > > > > > +    maxItems: 1
> > > > > > > +
> > > > > > > +  interrupts:
> > > > > > > +    maxItems: 1
> > > > > > > +
> > > > > > > +  clocks:
> > > > > > > +    maxItems: 5
> > > > > > > +
> > > > > > > +  clock-names:
> > > > > > > +    items:
> > > > > > > +      - const: vdec-sel
> > > > > > > +      - const: vdec-soc-vdec
> > > > > > > +      - const: vdec-soc-lat
> > > > > > > +      - const: vdec-vdec
> > > > > > > +      - const: vdec-top
> > > > > > > +
> > > > > > > +  assigned-clocks: true
> > > > > > > +
> > > > > > > +  assigned-clock-parents: true
> > > > > > > +
> > > > > > > +  power-domains:
> > > > > > > +    maxItems: 1
> > > > > > > +
> > > > > > > +  iommus:
> > > > > > > +    minItems: 1
> > > > > > > +    maxItems: 32
> > > > > > > +    description: |
> > > > > > > +      List of the hardware port in respective IOMMU block
> > > > > > > for
> > > > > > > current Socs.
> > > > > > > +      Refer to bindings/iommu/mediatek,iommu.yaml.
> > > > > > > +
> > > > > > > +  dma-ranges:
> > > > > > > +    maxItems: 1
> > > > > > > +    description: |
> > > > > > > +      Describes the physical address space of IOMMU maps
> > > > > > > to
> > > > > > > memory.
> > > > > > > +
> > > > > > > +  mediatek,scp:
> > > > > > > +    $ref: /schemas/types.yaml#/definitions/phandle
> > > > > > > +    maxItems: 1
> > > > > > > +    description:
> > > > > > > +      Describes point to scp.
> > > > > > > +
> > > > > > > +required:
> > > > > > > +      - compatible
> > > > > > > +      - reg
> > > > > > > +      - iommus
> > > > > > > +      - dma-ranges
> > > > > > > +
> > > > > > > +allOf:
> > > > > > > +  - if: #master node
> > > > > > > +      properties:
> > > > > > > +        compatible:
> > > > > > > +          contains:
> > > > > > > +            enum:
> > > > > > > +              - mediatek,mt8192-vcodec-dec  # for lat
> > > > > > > hardware
> > > > > > > +
> > > > > > > +    then:
> > > > > > > +      required:
> > > > > > > +        - mediatek,scp
> > > > > > > +
> > > > > > > +  - if: #component node
> > > > > > > +      properties:
> > > > > > > +        compatible:
> > > > > > > +          contains:
> > > > > > > +            enum:
> > > > > > > +              - mediatek,mtk-vcodec-lat     # for core
> > > > > > > hardware
> > > > > > > +              - mediatek,mtk-vcodec-core
> > > > > > > +
> > > > > > > +    then:
> > > > > > > +      required:
> > > > > > > +        - interrupts
> > > > > > > +        - clocks
> > > > > > > +        - clock-names
> > > > > > > +        - assigned-clocks
> > > > > > > +        - assigned-clock-parents
> > > > > > > +        - power-domains
> > > > > > > +
> > > > > > > +
> > > > > > > +additionalProperties: false
> > > > > > > +
> > > > > > > +examples:
> > > > > > > +  - |
> > > > > > > +    #include <dt-bindings/interrupt-controller/arm-gic.h>
> > > > > > > +    #include <dt-bindings/memory/mt8192-larb-port.h>
> > > > > > > +    #include <dt-bindings/interrupt-controller/irq.h>
> > > > > > > +    #include <dt-bindings/clock/mt8192-clk.h>
> > > > > > > +    #include <dt-bindings/power/mt8192-power.h>
> > > > > > > +
> > > > > > > +    vcodec_dec: vcodec_dec@16000000 {
> > > > > > > +        compatible = "mediatek,mt8192-vcodec-dec";
> > > > > > > +        reg = <0 0x16000000 0 0x1000>;             /*
> > > > > > > VDEC_SYS
> > > > > > > */
> > > > > > > +        mediatek,scp = <&scp>;
> > > > > > > +        iommus = <&iommu0 M4U_PORT_L4_VDEC_MC_EXT>;
> > > > > > > +        dma-ranges = <0x1 0x0 0x0 0x40000000 0x0
> > > > > > > 0xfff00000>;
> > > > > > > +    };
> > > > > > > +
> > > > > > > +    vcodec_lat: vcodec_lat@0x16010000 {
> > > > > > > +        compatible = "mediatek,mtk-vcodec-lat";
> > > > > > > +        reg = <0 0x16010000 0 0x800>;              /*
> > > > > > > VDEC_MISC */
> > > > > > > +        interrupts = <GIC_SPI 426 IRQ_TYPE_LEVEL_HIGH 0>;
> > > > > > > +        iommus = <&iommu0 M4U_PORT_L5_VDEC_LAT0_VLD_EXT>,
> > > > > > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_VLD2_EXT>,
> > > > > > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_AVC_MV_EXT>,
> > > > > > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_PRED_RD_EXT>,
> > > > > > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_TILE_EXT>,
> > > > > > > +             <&iommu0 M4U_PORT_L5_VDEC_LAT0_WDMA_EXT>,
> > > > > > > +             <&iommu0
> > > > > > > M4U_PORT_L5_VDEC_LAT0_RG_CTRL_DMA_EXT>,
> > > > > > > +             <&iommu0 M4U_PORT_L5_VDEC_UFO_ENC_EXT>;
> > > > > > > +        dma-ranges = <0x1 0x0 0x0 0x40000000 0x0
> > > > > > > 0xfff00000>;
> > > > > > > +        clocks = <&topckgen CLK_TOP_VDEC_SEL>,
> > > > > > > +             <&vdecsys_soc CLK_VDEC_SOC_VDEC>,
> > > > > > > +             <&vdecsys_soc CLK_VDEC_SOC_LAT>,
> > > > > > > +             <&vdecsys_soc CLK_VDEC_SOC_LARB1>,
> > > > > > > +             <&topckgen CLK_TOP_MAINPLL_D4>;
> > > > > > > +        clock-names = "vdec-sel", "vdec-soc-vdec", "vdec-
> > > > > > > soc-
> > > > > > > lat",
> > > > > > > +              "vdec-vdec", "vdec-top";
> > > > > > > +        assigned-clocks = <&topckgen CLK_TOP_VDEC_SEL>;
> > > > > > > +        assigned-clock-parents = <&topckgen
> > > > > > > CLK_TOP_MAINPLL_D4>;
> > > > > > > +        power-domains = <&spm MT8192_POWER_DOMAIN_VDEC>;
> > > > > > > +    };
> > > > > > > +
> > > > > > > +    vcodec_core: vcodec_core@0x16025000 {
> > > > > > > +        compatible = "mediatek,mtk-vcodec-core";
> > > > > > > +        reg = <0 0x16025000 0 0x1000>;             /*
> > > > > > > VDEC_CORE_MISC */
> > > > > > > +        interrupts = <GIC_SPI 425 IRQ_TYPE_LEVEL_HIGH 0>;
> > > > > > > +        iommus = <&iommu0 M4U_PORT_L4_VDEC_MC_EXT>,
> > > > > > > +             <&iommu0 M4U_PORT_L4_VDEC_UFO_EXT>,
> > > > > > > +             <&iommu0 M4U_PORT_L4_VDEC_PP_EXT>,
> > > > > > > +             <&iommu0 M4U_PORT_L4_VDEC_PRED_RD_EXT>,
> > > > > > > +             <&iommu0 M4U_PORT_L4_VDEC_PRED_WR_EXT>,
> > > > > > > +             <&iommu0 M4U_PORT_L4_VDEC_PPWRAP_EXT>,
> > > > > > > +             <&iommu0 M4U_PORT_L4_VDEC_TILE_EXT>,
> > > > > > > +             <&iommu0 M4U_PORT_L4_VDEC_VLD_EXT>,
> > > > > > > +             <&iommu0 M4U_PORT_L4_VDEC_VLD2_EXT>,
> > > > > > > +             <&iommu0 M4U_PORT_L4_VDEC_AVC_MV_EXT>,
> > > > > > > +             <&iommu0 M4U_PORT_L4_VDEC_RG_CTRL_DMA_EXT>;
> > > > > > > +        dma-ranges = <0x1 0x0 0x0 0x40000000 0x0
> > > > > > > 0xfff00000>;
> > > > > > > +        clocks = <&topckgen CLK_TOP_VDEC_SEL>,
> > > > > > > +             <&vdecsys CLK_VDEC_VDEC>,
> > > > > > > +             <&vdecsys CLK_VDEC_LAT>,
> > > > > > > +             <&vdecsys CLK_VDEC_LARB1>,
> > > > > > > +             <&topckgen CLK_TOP_MAINPLL_D4>;
> > > > > > > +        clock-names = "vdec-sel", "vdec-soc-vdec", "vdec-
> > > > > > > soc-
> > > > > > > lat",
> > > > > > > +              "vdec-vdec", "vdec-top";
> > > > > > > +        assigned-clocks = <&topckgen CLK_TOP_VDEC_SEL>;
> > > > > > > +        assigned-clock-parents = <&topckgen
> > > > > > > CLK_TOP_MAINPLL_D4>;
> > > > > > > +        power-domains = <&spm MT8192_POWER_DOMAIN_VDEC2>;
> > > > > > > +    };
> > > > > >
> > > > > > I'm a bit late in the game, reviewing v5 only, but I'm
> > > > > > wondering
> > > > > > if
> > > > > > those IP cores need to be modelled in separate nodes. It
> > > > > > would be
> > > > > > much
> > > > > > easier, from a software point of view, to have a single node,
> > > > > > with
> > > > > > multiple register ranges.
> > > > > >
> > > > > > Are some of those IP cores used in different SoCs, combined
> > > > > > in
> > > > > > different
> > > > > > ways, that make a modular design better ?
> > > > > >
> > > > >
> > > > > Different platform has different hardware, for mt8192 only has
> > > > > three
> > > > > nodes. but mt8195 will has five nodes. and the
> > > > > clk/power/irq/iommu
> > > > > are
> > > > > different. It is not easy to manage all hardware at the same
> > > > > time
> > > > > in
> > > > > one node, need to enable different hardware at the same time,
> > > > > the
> > > > > logic
> > > > > will be very complex.
> > > > > It is much easier to handle different hardware using component,
> > > > > enable
> > > > > different hardware when we need it.
> > > > >
> > > > >
> > > >
> > > > You can still have one device-tree node for each device, which
> > > > means
> > > > you can still manage your resources (clk/power/irq/iommu) easily,
> > > > but
> > > > doing
> > > > this so that it avoids an async framework to pull the parts
> > > > together.
> > > >
> > >
> > > It mean that v4l2 async also can't be used?
> >
> > No, I don't think it's needed. I will take a look at the device tree
> > and see if I can show you an alternative approach that doesn't
> > require an async framework.
> >
> Thanks.
> > > > I gave you this feedback several times, and you have been
> > > > objecting
> > > > it
> > > > every time  without even trying to consider a different approach.
> > > >
> > >
> > > I'm not objecting your suggestion every time, for our driver is
> > > designed for component api, need to spend a lot of time to change
> > > it in
> > > many platforms. We need to get a final solution for this
> > > architecture,
> > > or it's not easy to change all patches in the feature.
> > > > Thanks,
> > > > Ezequiel
> > >
> > > 1. Each a node should respect a HW node. Defining a complex node
> > > that
> > > contain multiple register is not better, for they belong to
> > > different
> > > hardware. Different platforms has different hardware count, mt8195
> > > has
> > > five hardwares.
> > > 2. Another reason is from the IOMMU point, the vcodec HW include
> > > core
> > > and lat hardwares, each of them connect to the independent IOMMU
> > > hardware for mt8195, can't write all iommu ports together, or
> > > hardware
> > > can't access dram data, so we must separate them.
> > >
> > > For these limitation, can't combine all hardware together. I will
> > > write
> > > the hardware diagram in next patch.
> > >
> >
> > No need for another patch, you can write that hardware diagram
> > now, so we can help with some design ideas.
> >
> You can see the block diagram in patch:
>
> https://patchwork.linuxtv.org/project/linux-media/patch/20210901083215.25984-14-yunfei.dong@mediatek.com/

This isn't what was really requested though. This is a diagram of how you
designed the software to operate the hardware. Ezequiel is asking for a
diagram of how the hardware is actually designed, how the different blocks
fit together, and how the hardware itself operates. Something like the
block diagrams commonly seen in the datasheets.


ChenYu

^ permalink raw reply	[flat|nested] 41+ messages in thread

end of thread, other threads:[~2021-09-03  4:02 UTC | newest]

Thread overview: 41+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2021-08-11  2:57 [PATCH v5, 00/15] Using component framework to support multi hardware decode Yunfei Dong
2021-08-11  2:57 ` [PATCH v5, 01/15] media: mtk-vcodec: Get numbers of register bases from DT Yunfei Dong
2021-08-20  3:29   ` Tzung-Bi Shih
2021-08-11  2:57 ` [PATCH v5, 02/15] media: mtk-vcodec: Align vcodec wake up interrupt interface Yunfei Dong
2021-08-11  2:57 ` [PATCH v5, 03/15] media: mtk-vcodec: Refactor vcodec pm interface Yunfei Dong
2021-08-11  2:57 ` [PATCH v5, 04/15] media: mtk-vcodec: Use component framework to manage each hardware information Yunfei Dong
2021-08-11  2:57 ` [PATCH v5, 05/15] dt-bindings: media: mtk-vcodec: Separate video encoder and decoder dt-bindings Yunfei Dong
2021-08-17 20:33   ` Rob Herring
2021-08-11  2:57 ` [PATCH v5, 06/15] media: mtk-vcodec: Use pure single core for MT8183 Yunfei Dong
2021-08-11  2:57 ` [PATCH v5, 07/15] media: mtk-vcodec: Add irq interface for multi hardware Yunfei Dong
2021-08-11  2:57 ` [PATCH v5, 08/15] media: mtk-vcodec: Add msg queue feature for lat and core architecture Yunfei Dong
2021-08-11  2:57 ` [PATCH v5, 09/15] media: mtk-vcodec: Generalize power and clock on/off interfaces Yunfei Dong
2021-08-11  2:57 ` [PATCH v5, 10/15] media: mtk-vcodec: Add new interface to lock different hardware Yunfei Dong
2021-08-11  2:57 ` [PATCH v5, 11/15] media: mtk-vcodec: Add core thread Yunfei Dong
2021-08-11  2:57 ` [PATCH v5, 12/15] media: mtk-vcodec: Support 34bits dma address for vdec Yunfei Dong
2021-08-11  2:57 ` [PATCH v5, 13/15] dt-bindings: media: mtk-vcodec: Adds decoder dt-bindings for mt8192 Yunfei Dong
2021-08-11 17:24   ` Rob Herring
2021-08-17  3:38     ` yunfei.dong
2021-08-11 17:41   ` Rob Herring
2021-08-11 17:59   ` Laurent Pinchart
2021-08-17  3:50     ` yunfei.dong
2021-08-29 20:54       ` Ezequiel Garcia
2021-09-01  3:49         ` yunfei.dong
2021-09-01 11:50           ` Ezequiel Garcia
2021-09-02  6:09             ` yunfei.dong
2021-09-03  4:02               ` Chen-Yu Tsai
2021-08-29 20:50     ` Ezequiel Garcia
2021-08-30  6:07       ` yunfei.dong
2021-08-30  9:00         ` Laurent Pinchart
2021-08-11  2:58 ` [PATCH v5, 14/15] media: mtk-vcodec: Add core dec and dec end ipi msg Yunfei Dong
2021-08-11  2:58 ` [PATCH v5, 15/15] media: mtk-vcodec: Use codec type to separate different hardware Yunfei Dong
2021-08-18 14:11 ` [PATCH v5, 00/15] Using component framework to support multi hardware decode Ezequiel Garcia
2021-08-19  7:13   ` yunfei.dong
2021-08-19 14:10     ` Ezequiel Garcia
2021-08-20  7:59       ` yunfei.dong
2021-08-22 14:32         ` Ezequiel Garcia
2021-08-24 10:21           ` yunfei.dong
2021-08-25  5:48             ` yunfei.dong
2021-08-22 16:50   ` Daniel Vetter
2021-08-22 17:57     ` Ezequiel Garcia
2021-08-26  9:14       ` Daniel Vetter

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