[PATCH v10 9/9] media: hantro: IMX8M: add variant for G2/HEVC codec

From: Benjamin Gaignard
Date: Tue Apr 20 2021 - 08:11:34 EST


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 | 74 ++++++++++++++++++++-
3 files changed, 75 insertions(+), 1 deletion(-)

diff --git a/drivers/staging/media/hantro/hantro_drv.c b/drivers/staging/media/hantro/hantro_drv.c
index 905a69758b37..d6f4958f6292 100644
--- a/drivers/staging/media/hantro/hantro_drv.c
+++ b/drivers/staging/media/hantro/hantro_drv.c
@@ -574,6 +574,7 @@ 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 },
#endif
{ /* sentinel */ }
};
diff --git a/drivers/staging/media/hantro/hantro_hw.h b/drivers/staging/media/hantro/hantro_hw.h
index 41f3d5b92357..682fea1fe914 100644
--- a/drivers/staging/media/hantro/hantro_hw.h
+++ b/drivers/staging/media/hantro/hantro_hw.h
@@ -205,6 +205,7 @@ extern const struct hantro_variant rk3399_vpu_variant;
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 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 c222de075ef4..2a6ac5248f6e 100644
--- a/drivers/staging/media/hantro/imx8m_vpu_hw.c
+++ b/drivers/staging/media/hantro/imx8m_vpu_hw.c
@@ -11,6 +11,7 @@
#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)
@@ -130,6 +131,26 @@ 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;
@@ -148,6 +169,24 @@ static irqreturn_t imx8m_vpu_g1_irq(int irq, void *dev_id)
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->dec_base = vpu->reg_bases[0];
@@ -163,6 +202,13 @@ 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.
*/
@@ -188,13 +234,25 @@ 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", imx8m_vpu_g1_irq },
- { "g2", NULL /* TODO: imx8m_vpu_g2_irq */ },
+};
+
+static const struct hantro_irq imx8mq_g2_irqs[] = {
+ { "g2", imx8m_vpu_g2_irq },
};

static const char * const imx8mq_clk_names[] = { "g1", "g2", "bus" };
@@ -218,3 +276,17 @@ 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),
+};
--
2.25.1