Re: [PATCH v11 9/9] media: hantro: IMX8M: add variant for G2/HEVC codec

Benjamin Gaignard <benjamin.gaignard@xxxxxxxxxxxxx> · Wed, 26 May 2021 13:10:57 +0200

Le 26/05/2021 à 11:52, Hans Verkuil a écrit :
On 25/05/2021 18:12, Benjamin Gaignard wrote:
Add variant to IMX8M to enable G2/HEVC codec.
Define the capabilities for the hardware up to 3840x2160.
G2 doesn't have a postprocessor, uses the same clocks and has it
own interrupt.

Signed-off-by: Benjamin Gaignard <benjamin.gaignard@xxxxxxxxxxxxx>
Reviewed-by: Philipp Zabel <p.zabel@xxxxxxxxxxxxxx>
Reviewed-by: Ezequiel Garcia <ezequiel@xxxxxxxxxxxxx>
---
  drivers/staging/media/hantro/hantro_drv.c   |  1 +
  drivers/staging/media/hantro/hantro_hw.h    |  1 +
  drivers/staging/media/hantro/imx8m_vpu_hw.c | 96 ++++++++++++++++++++-
  3 files changed, 96 insertions(+), 2 deletions(-)

diff --git a/drivers/staging/media/hantro/hantro_drv.c b/drivers/staging/media/hantro/hantro_drv.c
index ae8a0037706f..507cd5b454b3 100644
--- a/drivers/staging/media/hantro/hantro_drv.c
+++ b/drivers/staging/media/hantro/hantro_drv.c
@@ -588,6 +588,7 @@ static const struct of_device_id of_hantro_match[] = {
  #endif
  #ifdef CONFIG_VIDEO_HANTRO_IMX8M
  	{ .compatible = "nxp,imx8mq-vpu", .data = &imx8mq_vpu_variant, },
+	{ .compatible = "nxp,imx8mq-vpu-g2", .data = &imx8mq_vpu_g2_variant },
 From checkpatch:

WARNING: DT compatible string "nxp,imx8mq-vpu-g2" appears un-documented -- check ./Documentation/devicetree/bindings/
#29: FILE: drivers/staging/media/hantro/hantro_drv.c:591:
+       { .compatible = "nxp,imx8mq-vpu-g2", .data = &imx8mq_vpu_g2_variant },

Is a patch missing for bindings adding "nxp,imx8mq-vpu-g2"?

The DT and bindings patches are delayed because NXP guys want to use power domain to drive
the control block:
https://lore.kernel.org/linux-media/20210407073534.376722-1-benjamin.gaignard@xxxxxxxxxxxxx/T/#m6bd571fee94b1b1fa5c5d3fa6315ae5c9f4c8fad

Regards,
Benjamin


Regards,

	Hans


  #endif
  #ifdef CONFIG_VIDEO_HANTRO_SAMA5D4
  	{ .compatible = "microchip,sama5d4-vdec", .data = &sama5d4_vdec_variant, },
diff --git a/drivers/staging/media/hantro/hantro_hw.h b/drivers/staging/media/hantro/hantro_hw.h
index b743b255bf32..5cc083112017 100644
--- a/drivers/staging/media/hantro/hantro_hw.h
+++ b/drivers/staging/media/hantro/hantro_hw.h
@@ -206,6 +206,7 @@ extern const struct hantro_variant rk3328_vpu_variant;
  extern const struct hantro_variant rk3288_vpu_variant;
  extern const struct hantro_variant imx8mq_vpu_variant;
  extern const struct hantro_variant sama5d4_vdec_variant;
+extern const struct hantro_variant imx8mq_vpu_g2_variant;
  
  extern const struct hantro_postproc_regs hantro_g1_postproc_regs;
  
diff --git a/drivers/staging/media/hantro/imx8m_vpu_hw.c b/drivers/staging/media/hantro/imx8m_vpu_hw.c
index 9eb556460e52..ea152e1e6514 100644
--- a/drivers/staging/media/hantro/imx8m_vpu_hw.c
+++ b/drivers/staging/media/hantro/imx8m_vpu_hw.c
@@ -9,6 +9,9 @@
  #include <linux/delay.h>
  
  #include "hantro.h"
+#include "hantro_jpeg.h"
+#include "hantro_g1_regs.h"
+#include "hantro_g2_regs.h"
  
  #define CTRL_SOFT_RESET		0x00
  #define RESET_G1		BIT(1)
@@ -128,6 +131,62 @@ static const struct hantro_fmt imx8m_vpu_dec_fmts[] = {
  	},
  };
  
+static const struct hantro_fmt imx8m_vpu_g2_dec_fmts[] = {
+	{
+		.fourcc = V4L2_PIX_FMT_NV12,
+		.codec_mode = HANTRO_MODE_NONE,
+	},
+	{
+		.fourcc = V4L2_PIX_FMT_HEVC_SLICE,
+		.codec_mode = HANTRO_MODE_HEVC_DEC,
+		.max_depth = 2,
+		.frmsize = {
+			.min_width = 48,
+			.max_width = 3840,
+			.step_width = MB_DIM,
+			.min_height = 48,
+			.max_height = 2160,
+			.step_height = MB_DIM,
+		},
+	},
+};
+
+static irqreturn_t imx8m_vpu_g1_irq(int irq, void *dev_id)
+{
+	struct hantro_dev *vpu = dev_id;
+	enum vb2_buffer_state state;
+	u32 status;
+
+	status = vdpu_read(vpu, G1_REG_INTERRUPT);
+	state = (status & G1_REG_INTERRUPT_DEC_RDY_INT) ?
+		 VB2_BUF_STATE_DONE : VB2_BUF_STATE_ERROR;
+
+	vdpu_write(vpu, 0, G1_REG_INTERRUPT);
+	vdpu_write(vpu, G1_REG_CONFIG_DEC_CLK_GATE_E, G1_REG_CONFIG);
+
+	hantro_irq_done(vpu, state);
+
+	return IRQ_HANDLED;
+}
+
+static irqreturn_t imx8m_vpu_g2_irq(int irq, void *dev_id)
+{
+	struct hantro_dev *vpu = dev_id;
+	enum vb2_buffer_state state;
+	u32 status;
+
+	status = vdpu_read(vpu, HEVC_REG_INTERRUPT);
+	state = (status & HEVC_REG_INTERRUPT_DEC_RDY_INT) ?
+		 VB2_BUF_STATE_DONE : VB2_BUF_STATE_ERROR;
+
+	vdpu_write(vpu, 0, HEVC_REG_INTERRUPT);
+	vdpu_write(vpu, HEVC_REG_CONFIG_DEC_CLK_GATE_E, HEVC_REG_CONFIG);
+
+	hantro_irq_done(vpu, state);
+
+	return IRQ_HANDLED;
+}
+
  static int imx8mq_vpu_hw_init(struct hantro_dev *vpu)
  {
  	vpu->ctrl_base = vpu->reg_bases[vpu->variant->num_regs - 1];
@@ -142,6 +201,13 @@ static void imx8m_vpu_g1_reset(struct hantro_ctx *ctx)
  	imx8m_soft_reset(vpu, RESET_G1);
  }
  
+static void imx8m_vpu_g2_reset(struct hantro_ctx *ctx)
+{
+	struct hantro_dev *vpu = ctx->dev;
+
+	imx8m_soft_reset(vpu, RESET_G2);
+}
+
  /*
   * Supported codec ops.
   */
@@ -167,13 +233,25 @@ static const struct hantro_codec_ops imx8mq_vpu_codec_ops[] = {
  	},
  };
  
+static const struct hantro_codec_ops imx8mq_vpu_g2_codec_ops[] = {
+	[HANTRO_MODE_HEVC_DEC] = {
+		.run = hantro_g2_hevc_dec_run,
+		.reset = imx8m_vpu_g2_reset,
+		.init = hantro_hevc_dec_init,
+		.exit = hantro_hevc_dec_exit,
+	},
+};
+
  /*
   * VPU variants.
   */
  
  static const struct hantro_irq imx8mq_irqs[] = {
-	{ "g1", hantro_g1_irq },
-	{ "g2", NULL /* TODO: imx8m_vpu_g2_irq */ },
+	{ "g1", imx8m_vpu_g1_irq },
+};
+
+static const struct hantro_irq imx8mq_g2_irqs[] = {
+	{ "g2", imx8m_vpu_g2_irq },
  };
  
  static const char * const imx8mq_clk_names[] = { "g1", "g2", "bus" };
@@ -197,3 +275,17 @@ const struct hantro_variant imx8mq_vpu_variant = {
  	.reg_names = imx8mq_reg_names,
  	.num_regs = ARRAY_SIZE(imx8mq_reg_names)
  };
+
+const struct hantro_variant imx8mq_vpu_g2_variant = {
+	.dec_offset = 0x0,
+	.dec_fmts = imx8m_vpu_g2_dec_fmts,
+	.num_dec_fmts = ARRAY_SIZE(imx8m_vpu_g2_dec_fmts),
+	.codec = HANTRO_HEVC_DECODER,
+	.codec_ops = imx8mq_vpu_g2_codec_ops,
+	.init = imx8mq_vpu_hw_init,
+	.runtime_resume = imx8mq_runtime_resume,
+	.irqs = imx8mq_g2_irqs,
+	.num_irqs = ARRAY_SIZE(imx8mq_g2_irqs),
+	.clk_names = imx8mq_clk_names,
+	.num_clocks = ARRAY_SIZE(imx8mq_clk_names),
+};







