[PATCH v12 12/12] media: mediatek: jpeg: add jpeg smmu sid setting
From: Kyrie Wu <hidden>
Date: 2026-01-23 03:17:40
Also in:
linux-devicetree, linux-media, linux-mediatek, lkml
Subsystem:
media input infrastructure (v4l/dvb), mediatek jpeg driver, the rest · Maintainers:
Mauro Carvalho Chehab, Bin Liu, Linus Torvalds
Add a configuration to set jpeg dec & enc smmu sid Signed-off-by: Kyrie Wu <redacted> Reviewed-by: Nicolas Dufresne <nicolas.dufresne@collabora.com> --- .../platform/mediatek/jpeg/mtk_jpeg_core.c | 29 +++++++++++++++++++ .../platform/mediatek/jpeg/mtk_jpeg_core.h | 15 ++++++++++ .../platform/mediatek/jpeg/mtk_jpeg_dec_hw.c | 23 +++++++++++++++ .../platform/mediatek/jpeg/mtk_jpeg_enc_hw.c | 23 +++++++++++++++ 4 files changed, 90 insertions(+)
diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
index 8f37619f4920..f76df99fab84 100644
--- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.c@@ -15,6 +15,7 @@ #include <linux/of_platform.h> #include <linux/platform_device.h> #include <linux/pm_runtime.h> +#include <linux/regmap.h> #include <linux/slab.h> #include <linux/spinlock.h> #include <media/v4l2-event.h>
@@ -1599,6 +1600,22 @@ static irqreturn_t mtk_jpeg_enc_done(struct mtk_jpeg_dev *jpeg) return IRQ_HANDLED; } +static void mtk_jpeg_set_smmu_sid(struct regmap *smmu_regmap, unsigned int sid) +{ + if (sid == JPG_REG_GUSER_ID_DEC_SID) + regmap_update_bits(smmu_regmap, JPEG_DEC_SMMU_SID, + JPG_REG_GUSER_ID_MASK << + JPG_REG_DEC_GUSER_ID_SHIFT, + JPG_REG_GUSER_ID_DEC_SID << + JPG_REG_DEC_GUSER_ID_SHIFT); + else + regmap_update_bits(smmu_regmap, JPEG_ENC_SMMU_SID, + JPG_REG_GUSER_ID_MASK << + JPG_REG_ENC_GUSER_ID_SHIFT, + JPG_REG_GUSER_ID_ENC_SID << + JPG_REG_ENC_GUSER_ID_SHIFT); +} + static void mtk_jpegenc_worker(struct work_struct *work) { struct mtk_jpegenc_comp_dev *comp_jpeg[MTK_JPEGENC_HW_MAX];
@@ -1660,6 +1677,11 @@ static void mtk_jpegenc_worker(struct work_struct *work) jpeg_dst_buf->frame_num = ctx->total_frame_num; ctx->total_frame_num++; mtk_jpeg_enc_reset(comp_jpeg[hw_id]->reg_base); + + if (jpeg->variant->support_smmu && comp_jpeg[hw_id]->smmu_regmap) + mtk_jpeg_set_smmu_sid(comp_jpeg[hw_id]->smmu_regmap, + JPG_REG_GUSER_ID_ENC_SID); + mtk_jpeg_set_enc_dst(ctx, comp_jpeg[hw_id]->reg_base, &dst_buf->vb2_buf);
@@ -1769,6 +1791,11 @@ static void mtk_jpegdec_worker(struct work_struct *work) jpeg_dst_buf->frame_num = ctx->total_frame_num; ctx->total_frame_num++; mtk_jpeg_dec_reset(comp_jpeg[hw_id]->reg_base); + + if (jpeg->variant->support_smmu && comp_jpeg[hw_id]->smmu_regmap) + mtk_jpeg_set_smmu_sid(comp_jpeg[hw_id]->smmu_regmap, + JPG_REG_GUSER_ID_DEC_SID); + mtk_jpeg_dec_set_config(comp_jpeg[hw_id]->reg_base, jpeg->variant->support_34bit, &jpeg_src_buf->dec_param,
@@ -1927,6 +1954,7 @@ static struct mtk_jpeg_variant mtk8196_jpegenc_drvdata = { .cap_q_default_fourcc = V4L2_PIX_FMT_JPEG, .multi_core = true, .jpeg_worker = mtk_jpegenc_worker, + .support_smmu = true, }; static const struct mtk_jpeg_variant mtk8195_jpegdec_drvdata = {
@@ -1953,6 +1981,7 @@ static const struct mtk_jpeg_variant mtk8196_jpegdec_drvdata = { .cap_q_default_fourcc = V4L2_PIX_FMT_YUV420M, .multi_core = true, .jpeg_worker = mtk_jpegdec_worker, + .support_smmu = true, }; static const struct of_device_id mtk_jpeg_match[] = {
diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h
index 148fd41759b7..186cd1862028 100644
--- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_core.h@@ -11,6 +11,7 @@ #include <linux/clk.h> #include <linux/interrupt.h> +#include <linux/mfd/syscon.h> #include <media/v4l2-ctrls.h> #include <media/v4l2-device.h> #include <media/v4l2-fh.h>
@@ -34,6 +35,14 @@ #define MTK_JPEG_MAX_EXIF_SIZE (64 * 1024) +#define JPEG_DEC_SMMU_SID 0 +#define JPEG_ENC_SMMU_SID 0 +#define JPG_REG_GUSER_ID_MASK 0x7 +#define JPG_REG_GUSER_ID_DEC_SID 0x4 +#define JPG_REG_GUSER_ID_ENC_SID 0x5 +#define JPG_REG_DEC_GUSER_ID_SHIFT 8 +#define JPG_REG_ENC_GUSER_ID_SHIFT 4 + #define MTK_JPEG_ADDR_MASK GENMASK(1, 0) /**
@@ -65,6 +74,7 @@ enum mtk_jpeg_ctx_state { * @multi_core: mark jpeg hw is multi_core or not * @jpeg_worker: jpeg dec or enc worker * @support_34bit: flag to check support for 34-bit DMA address + * @support_smmu: flag to check if support smmu */ struct mtk_jpeg_variant { struct clk_bulk_data *clks;
@@ -82,6 +92,7 @@ struct mtk_jpeg_variant { bool multi_core; void (*jpeg_worker)(struct work_struct *work); bool support_34bit; + bool support_smmu; }; struct mtk_jpeg_src_buf {
@@ -150,6 +161,7 @@ struct mtk_jpegdec_clk { * @hw_param: jpeg encode hw parameters * @hw_state: record hw state * @hw_lock: spinlock protecting the hw device resource + * @smmu_regmap: SMMU registers mapping */ struct mtk_jpegenc_comp_dev { struct device *dev;
@@ -163,6 +175,7 @@ struct mtk_jpegenc_comp_dev { enum mtk_jpeg_hw_state hw_state; /* spinlock protecting the hw device resource */ spinlock_t hw_lock; + struct regmap *smmu_regmap; }; /**
@@ -177,6 +190,7 @@ struct mtk_jpegenc_comp_dev { * @hw_param: jpeg decode hw parameters * @hw_state: record hw state * @hw_lock: spinlock protecting hw + * @smmu_regmap: SMMU registers mapping */ struct mtk_jpegdec_comp_dev { struct device *dev;
@@ -190,6 +204,7 @@ struct mtk_jpegdec_comp_dev { enum mtk_jpeg_hw_state hw_state; /* spinlock protecting the hw device resource */ spinlock_t hw_lock; + struct regmap *smmu_regmap; }; /**
diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c
index da034c866a6d..357138c714d6 100644
--- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_dec_hw.c@@ -615,6 +615,25 @@ static int mtk_jpegdec_hw_init_irq(struct mtk_jpegdec_comp_dev *dev) return 0; } +static int mtk_jpegdec_smmu_init(struct mtk_jpegdec_comp_dev *dev) +{ + struct mtk_jpeg_dev *master_dev = dev->master_dev; + + if (!master_dev->variant->support_smmu) + return 0; + + dev->smmu_regmap = + syscon_regmap_lookup_by_phandle(dev->plat_dev->dev.of_node, + "mediatek,smmu-config"); + if (IS_ERR(dev->smmu_regmap)) { + return dev_err_probe(dev->dev, PTR_ERR(dev->smmu_regmap), + "mmap smmu_base failed(%ld)\n", + PTR_ERR(dev->smmu_regmap)); + } + + return 0; +} + static int mtk_jpegdec_hw_probe(struct platform_device *pdev) { struct mtk_jpegdec_clk *jpegdec_clk;
@@ -668,6 +687,10 @@ static int mtk_jpegdec_hw_probe(struct platform_device *pdev) dev->master_dev = master_dev; master_dev->max_hw_count++; + ret = mtk_jpegdec_smmu_init(dev); + if (ret) + return ret; + platform_set_drvdata(pdev, dev); pm_runtime_enable(&pdev->dev); ret = devm_clk_bulk_get(dev->dev,
diff --git a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_enc_hw.c b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_enc_hw.c
index 1a71e36d2a52..4cc26e8fb528 100644
--- a/drivers/media/platform/mediatek/jpeg/mtk_jpeg_enc_hw.c
+++ b/drivers/media/platform/mediatek/jpeg/mtk_jpeg_enc_hw.c@@ -339,6 +339,25 @@ static int mtk_jpegenc_hw_init_irq(struct mtk_jpegenc_comp_dev *dev) return 0; } +static int mtk_jpegenc_smmu_init(struct mtk_jpegenc_comp_dev *dev) +{ + struct mtk_jpeg_dev *master_dev = dev->master_dev; + + if (!master_dev->variant->support_smmu) + return 0; + + dev->smmu_regmap = + syscon_regmap_lookup_by_phandle(dev->plat_dev->dev.of_node, + "mediatek,smmu-config"); + if (IS_ERR(dev->smmu_regmap)) { + return dev_err_probe(dev->dev, PTR_ERR(dev->smmu_regmap), + "mmap smmu_base failed(%ld)\n", + PTR_ERR(dev->smmu_regmap)); + } + + return 0; +} + static int mtk_jpegenc_hw_probe(struct platform_device *pdev) { struct mtk_jpegenc_clk *jpegenc_clk;
@@ -390,6 +409,10 @@ static int mtk_jpegenc_hw_probe(struct platform_device *pdev) dev->master_dev = master_dev; master_dev->max_hw_count++; + ret = mtk_jpegenc_smmu_init(dev); + if (ret) + return ret; + platform_set_drvdata(pdev, dev); pm_runtime_enable(&pdev->dev); ret = devm_clk_bulk_get(dev->dev,
--
2.45.2