Re: [PATCH v4 05/11] media: hantro: Add a field to distinguish the hardware versions
From: Ezequiel Garcia <hidden>
Date: 2021-03-04 00:11:00
Also in:
linux-devicetree, linux-media, linux-rockchip, lkml
On Wed, 2021-03-03 at 12:39 +0100, Benjamin Gaignard wrote:
Decoders hardware blocks could exist in multiple versions: add a field to distinguish them at runtime. G2 hardware block doesn't have postprocessor hantro_needs_postproc function should always returns false in for this hardware. hantro_needs_postproc function becoming to much complex to stay inline in .h file move it to .c file.
Note that I already questioned this patch before: https://lkml.org/lkml/2021/2/17/722 I think it's better to rely on of_device_id.data for this type of thing. In particular, I was expecting that just using hantro_variant.postproc_regs would be enough. Can you try if that works and avoid reading swreg(0) and probing the hardware core? Thanks! Ezequiel
quoted hunk ↗ jump to hunk
Keep the default behavoir to be G1 hardware. Signed-off-by: Benjamin Gaignard <benjamin.gaignard@collabora.com> --- drivers/staging/media/hantro/hantro.h | 13 +++++++------ drivers/staging/media/hantro/hantro_drv.c | 2 ++ drivers/staging/media/hantro/hantro_postproc.c | 17 +++++++++++++++++ 3 files changed, 26 insertions(+), 6 deletions(-)diff --git a/drivers/staging/media/hantro/hantro.h b/drivers/staging/media/hantro/hantro.h index a76a0d79db9f..05876e426419 100644 --- a/drivers/staging/media/hantro/hantro.h +++ b/drivers/staging/media/hantro/hantro.h@@ -37,6 +37,9 @@ struct hantro_codec_ops;#define HANTRO_HEVC_DECODER BIT(19) #define HANTRO_DECODERS 0xffff0000 +#define HANTRO_G1_REV 0x6731 +#define HANTRO_G2_REV 0x6732 + /** * struct hantro_irq - irq handler and name *@@ -171,6 +174,7 @@ hantro_vdev_to_func(struct video_device *vdev)* @enc_base: Mapped address of VPU encoder register for convenience. * @dec_base: Mapped address of VPU decoder register for convenience. * @ctrl_base: Mapped address of VPU control block. + * @core_hw_dec_rev Runtime detected HW decoder core revision * @vpu_mutex: Mutex to synchronize V4L2 calls. * @irqlock: Spinlock to synchronize access to data structures * shared with interrupt handlers.@@ -190,6 +194,7 @@ struct hantro_dev {void __iomem *enc_base; void __iomem *dec_base; void __iomem *ctrl_base; + u32 core_hw_dec_rev; struct mutex vpu_mutex; /* video_device lock */ spinlock_t irqlock;@@ -412,12 +417,8 @@ hantro_get_dst_buf(struct hantro_ctx *ctx)return v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx); } -static inline bool -hantro_needs_postproc(const struct hantro_ctx *ctx, - const struct hantro_fmt *fmt) -{ - return !ctx->is_encoder && fmt->fourcc != V4L2_PIX_FMT_NV12; -} +bool hantro_needs_postproc(const struct hantro_ctx *ctx, + const struct hantro_fmt *fmt); static inline dma_addr_t hantro_get_dec_buf_addr(struct hantro_ctx *ctx, struct vb2_buffer *vb)diff --git a/drivers/staging/media/hantro/hantro_drv.c b/drivers/staging/media/hantro/hantro_drv.c index f0b68e16fcc0..e3e6df28f470 100644 --- a/drivers/staging/media/hantro/hantro_drv.c +++ b/drivers/staging/media/hantro/hantro_drv.c@@ -836,6 +836,8 @@ static int hantro_probe(struct platform_device *pdev)} vpu->enc_base = vpu->reg_bases[0] + vpu->variant->enc_offset; vpu->dec_base = vpu->reg_bases[0] + vpu->variant->dec_offset; + /* by default decoder is G1 */ + vpu->core_hw_dec_rev = HANTRO_G1_REV; ret = dma_set_coherent_mask(vpu->dev, DMA_BIT_MASK(32)); if (ret) {diff --git a/drivers/staging/media/hantro/hantro_postproc.c b/drivers/staging/media/hantro/hantro_postproc.c index 6d2a8f2a8f0b..050880f720d6 100644 --- a/drivers/staging/media/hantro/hantro_postproc.c +++ b/drivers/staging/media/hantro/hantro_postproc.c@@ -50,6 +50,23 @@ const struct hantro_postproc_regs hantro_g1_postproc_regs = {.display_width = {G1_REG_PP_DISPLAY_WIDTH, 0, 0xfff}, }; +bool hantro_needs_postproc(const struct hantro_ctx *ctx, + const struct hantro_fmt *fmt) +{ + struct hantro_dev *vpu = ctx->dev; + + if (ctx->is_encoder) + return false; + + if (vpu->core_hw_dec_rev == HANTRO_G1_REV):q
+ return fmt->fourcc != V4L2_PIX_FMT_NV12;
+
+ if (vpu->core_hw_dec_rev == HANTRO_G2_REV)
+ return false;
+
+ return false;
+}
+
void hantro_postproc_enable(struct hantro_ctx *ctx)
{
struct hantro_dev *vpu = ctx->dev;_______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel