Merge tag 'v5.6' into next

Sync up with mainline to get device tree and other changes.

1 files changed, 148 insertions, 0 deletions

diff --git a/drivers/staging/media/hantro/hantro_postproc.c b/drivers/staging/media/hantro/hantro_postproc.c
new file mode 100644
index 000000000000..28a85d301d7f
--- /dev/null
+++ b/drivers/staging/media/hantro/hantro_postproc.c
@@ -0,0 +1,148 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Hantro G1 post-processor support
+ *
+ * Copyright (C) 2019 Collabora, Ltd.
+ */
+
+#include <linux/dma-mapping.h>
+#include <linux/types.h>
+
+#include "hantro.h"
+#include "hantro_hw.h"
+#include "hantro_g1_regs.h"
+
+#define HANTRO_PP_REG_WRITE(vpu, reg_name, val) \
+{ \
+	hantro_reg_write((vpu), \
+			 &((vpu)->variant->postproc_regs->reg_name), \
+			 (val)); \
+}
+
+#define HANTRO_PP_REG_WRITE_S(vpu, reg_name, val) \
+{ \
+	hantro_reg_write_s((vpu), \
+			   &((vpu)->variant->postproc_regs->reg_name), \
+			   (val)); \
+}
+
+#define VPU_PP_IN_YUYV			0x0
+#define VPU_PP_IN_NV12			0x1
+#define VPU_PP_IN_YUV420		0x2
+#define VPU_PP_IN_YUV240_TILED		0x5
+#define VPU_PP_OUT_RGB			0x0
+#define VPU_PP_OUT_YUYV			0x3
+
+const struct hantro_postproc_regs hantro_g1_postproc_regs = {
+	.pipeline_en = {G1_REG_PP_INTERRUPT, 1, 0x1},
+	.max_burst = {G1_REG_PP_DEV_CONFIG, 0, 0x1f},
+	.clk_gate = {G1_REG_PP_DEV_CONFIG, 1, 0x1},
+	.out_swap32 = {G1_REG_PP_DEV_CONFIG, 5, 0x1},
+	.out_endian = {G1_REG_PP_DEV_CONFIG, 6, 0x1},
+	.out_luma_base = {G1_REG_PP_OUT_LUMA_BASE, 0, 0xffffffff},
+	.input_width = {G1_REG_PP_INPUT_SIZE, 0, 0x1ff},
+	.input_height = {G1_REG_PP_INPUT_SIZE, 9, 0x1ff},
+	.output_width = {G1_REG_PP_CONTROL, 4, 0x7ff},
+	.output_height = {G1_REG_PP_CONTROL, 15, 0x7ff},
+	.input_fmt = {G1_REG_PP_CONTROL, 29, 0x7},
+	.output_fmt = {G1_REG_PP_CONTROL, 26, 0x7},
+	.orig_width = {G1_REG_PP_MASK1_ORIG_WIDTH, 23, 0x1ff},
+	.display_width = {G1_REG_PP_DISPLAY_WIDTH, 0, 0xfff},
+};
+
+void hantro_postproc_enable(struct hantro_ctx *ctx)
+{
+	struct hantro_dev *vpu = ctx->dev;
+	struct vb2_v4l2_buffer *dst_buf;
+	u32 src_pp_fmt, dst_pp_fmt;
+	dma_addr_t dst_dma;
+
+	if (!vpu->variant->postproc_regs)
+		return;
+
+	/* Turn on pipeline mode. Must be done first. */
+	HANTRO_PP_REG_WRITE_S(vpu, pipeline_en, 0x1);
+
+	src_pp_fmt = VPU_PP_IN_NV12;
+
+	switch (ctx->vpu_dst_fmt->fourcc) {
+	case V4L2_PIX_FMT_YUYV:
+		dst_pp_fmt = VPU_PP_OUT_YUYV;
+		break;
+	default:
+		WARN(1, "output format %d not supported by the post-processor, this wasn't expected.",
+		     ctx->vpu_dst_fmt->fourcc);
+		dst_pp_fmt = 0;
+		break;
+	}
+
+	dst_buf = v4l2_m2m_next_dst_buf(ctx->fh.m2m_ctx);
+	dst_dma = vb2_dma_contig_plane_dma_addr(&dst_buf->vb2_buf, 0);
+
+	HANTRO_PP_REG_WRITE(vpu, clk_gate, 0x1);
+	HANTRO_PP_REG_WRITE(vpu, out_endian, 0x1);
+	HANTRO_PP_REG_WRITE(vpu, out_swap32, 0x1);
+	HANTRO_PP_REG_WRITE(vpu, max_burst, 16);
+	HANTRO_PP_REG_WRITE(vpu, out_luma_base, dst_dma);
+	HANTRO_PP_REG_WRITE(vpu, input_width, MB_WIDTH(ctx->dst_fmt.width));
+	HANTRO_PP_REG_WRITE(vpu, input_height, MB_HEIGHT(ctx->dst_fmt.height));
+	HANTRO_PP_REG_WRITE(vpu, input_fmt, src_pp_fmt);
+	HANTRO_PP_REG_WRITE(vpu, output_fmt, dst_pp_fmt);
+	HANTRO_PP_REG_WRITE(vpu, output_width, ctx->dst_fmt.width);
+	HANTRO_PP_REG_WRITE(vpu, output_height, ctx->dst_fmt.height);
+	HANTRO_PP_REG_WRITE(vpu, orig_width, MB_WIDTH(ctx->dst_fmt.width));
+	HANTRO_PP_REG_WRITE(vpu, display_width, ctx->dst_fmt.width);
+}
+
+void hantro_postproc_free(struct hantro_ctx *ctx)
+{
+	struct hantro_dev *vpu = ctx->dev;
+	unsigned int i;
+
+	for (i = 0; i < VB2_MAX_FRAME; ++i) {
+		struct hantro_aux_buf *priv = &ctx->postproc.dec_q[i];
+
+		if (priv->cpu) {
+			dma_free_attrs(vpu->dev, priv->size, priv->cpu,
+				       priv->dma, priv->attrs);
+			priv->cpu = NULL;
+		}
+	}
+}
+
+int hantro_postproc_alloc(struct hantro_ctx *ctx)
+{
+	struct hantro_dev *vpu = ctx->dev;
+	struct v4l2_m2m_ctx *m2m_ctx = ctx->fh.m2m_ctx;
+	struct vb2_queue *cap_queue = &m2m_ctx->cap_q_ctx.q;
+	unsigned int num_buffers = cap_queue->num_buffers;
+	unsigned int i, buf_size;
+
+	buf_size = ctx->dst_fmt.plane_fmt[0].sizeimage;
+
+	for (i = 0; i < num_buffers; ++i) {
+		struct hantro_aux_buf *priv = &ctx->postproc.dec_q[i];
+
+		/*
+		 * The buffers on this queue are meant as intermediate
+		 * buffers for the decoder, so no mapping is needed.
+		 */
+		priv->attrs = DMA_ATTR_NO_KERNEL_MAPPING;
+		priv->cpu = dma_alloc_attrs(vpu->dev, buf_size, &priv->dma,
+					    GFP_KERNEL, priv->attrs);
+		if (!priv->cpu)
+			return -ENOMEM;
+		priv->size = buf_size;
+	}
+	return 0;
+}
+
+void hantro_postproc_disable(struct hantro_ctx *ctx)
+{
+	struct hantro_dev *vpu = ctx->dev;
+
+	if (!vpu->variant->postproc_regs)
+		return;
+
+	HANTRO_PP_REG_WRITE_S(vpu, pipeline_en, 0x0);
+}