media: verisilicon: postproc: 4K support

Support input larger than 4096x2048 using extended input width/height
fields of swreg92.
This is needed to decode large WebP or JPEG pictures.

Signed-off-by: Hugues Fruchet <[email protected]>
Reviewed-by: Nicolas Dufresne <[email protected]>
Signed-off-by: Nicolas Dufresne <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>

Author: hfruchet-st

drivers/media/platform/verisilicon/hantro.h

@@ -323,6 +323,8 @@ struct hantro_postproc_regs {
 	struct hantro_reg output_fmt;
 	struct hantro_reg orig_width;
 	struct hantro_reg display_width;
+	struct hantro_reg input_width_ext;
+	struct hantro_reg input_height_ext;
 };
 
 struct hantro_vp9_decoded_buffer_info {

drivers/media/platform/verisilicon/hantro_g1_regs.h

@@ -350,7 +350,7 @@
 #define     G1_REG_PP_CONTROL_OUT_WIDTH(v) (((v) << 4) & GENMASK(14, 4))
 #define G1_REG_PP_MASK1_ORIG_WIDTH	G1_SWREG(88)
 #define     G1_REG_PP_ORIG_WIDTH(v)	(((v) << 23) & GENMASK(31, 23))
-#define G1_REG_PP_DISPLAY_WIDTH		G1_SWREG(92)
+#define G1_REG_PP_DISPLAY_WIDTH_IN_EXT	G1_SWREG(92)
 #define G1_REG_PP_FUSE			G1_SWREG(99)
 
 #endif /* HANTRO_G1_REGS_H_ */

drivers/media/platform/verisilicon/hantro_postproc.c

@@ -49,7 +49,9 @@ static const struct hantro_postproc_regs hantro_g1_postproc_regs = {
 	.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},
+	.display_width = {G1_REG_PP_DISPLAY_WIDTH_IN_EXT, 0, 0xfff},
+	.input_width_ext = {G1_REG_PP_DISPLAY_WIDTH_IN_EXT, 26, 0x7},
+	.input_height_ext = {G1_REG_PP_DISPLAY_WIDTH_IN_EXT, 29, 0x7},
 };
 
 bool hantro_needs_postproc(const struct hantro_ctx *ctx,
@@ -103,6 +105,8 @@ static void hantro_postproc_g1_enable(struct hantro_ctx *ctx)
 	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);
+	HANTRO_PP_REG_WRITE(vpu, input_width_ext, MB_WIDTH(ctx->dst_fmt.width) >> 9);
+	HANTRO_PP_REG_WRITE(vpu, input_height_ext, MB_HEIGHT(ctx->dst_fmt.height >> 8));
 }
 
 static int down_scale_factor(struct hantro_ctx *ctx)