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charset="utf-8" From: "Hsia-Jun(Randy) Li" Those modifiers only record the parameters would effort pixel layout or memory layout. Whether physical memory page mapping is used is not a part of format. Signed-off-by: Hsia-Jun(Randy) Li --- include/uapi/drm/drm_fourcc.h | 75 +++++++++++++++++++++++++++++++++++ 1 file changed, 75 insertions(+) diff --git a/include/uapi/drm/drm_fourcc.h b/include/uapi/drm/drm_fourcc.h index de703c6be969..ee13250f06f4 100644 --- a/include/uapi/drm/drm_fourcc.h +++ b/include/uapi/drm/drm_fourcc.h @@ -419,6 +419,7 @@ extern "C" { #define DRM_FORMAT_MOD_VENDOR_ARM 0x08 #define DRM_FORMAT_MOD_VENDOR_ALLWINNER 0x09 #define DRM_FORMAT_MOD_VENDOR_AMLOGIC 0x0a +#define DRM_FORMAT_MOD_VENDOR_SYNAPTICS 0x0b =20 /* add more to the end as needed */ =20 @@ -1519,6 +1520,80 @@ drm_fourcc_canonicalize_nvidia_format_mod(__u64 modi= fier) #define AMD_FMT_MOD_CLEAR(field) \ (~((__u64)AMD_FMT_MOD_##field##_MASK << AMD_FMT_MOD_##field##_SHIFT)) =20 +/* + * Synaptics VideoSmart modifiers + * + * Tiles could be arranged in Groups of Tiles (GOTs), it is a small tile + * within a tile. GOT size and layout varies based on platform and + * performance concern. When the compression is applied, it is possible + * that we would have two tile type in the GOT, these parameters can't + * tell the secondary tile type. + * + * Besides, an 8 size 4 bytes arrary (32 bytes) would be need to store + * some compression parameters for a compression meta data plane. + * + * Macro + * Bits Param Description + * ---- ----- -----------------------------------------------------------= ------ + * + * 7:0 f Scan direction description. + * + * 0 =3D Invalid + * 1 =3D V4, the scan would always start from vertical for 4= pixel + * then move back to the start pixel of the next horizon= tal + * direction. + * 2 =3D Reserved for future use. + * + * 15:8 m The times of pattern repeat in the right angle direction fr= om + * the first scan direction. + * + * 19:16 p The padding bits after the whole scan, could be zero. + * + * 20:20 g GOT packing flag. + * + * 23:21 - Reserved for future use. Must be zero. + * + * 27:24 h log2(horizontal) of bytes, in GOTs. + * + * 31:28 v log2(vertical) of bytes, in GOTs. + * + * 35:32 - Reserved for future use. Must be zero. + * + * 36:36 c Compression flag. + * + * 55:37 - Reserved for future use. Must be zero. + * + */ + +#define DRM_FORMAT_MOD_SYNA_V4_TILED fourcc_mod_code(SYNAPTICS, 1) + +#define DRM_FORMAT_MOD_SYNA_MTR_LINEAR_2D(f, m, p, g, h, v, c) \ + fourcc_mod_code(SYNAPTICS, ((__u64)((f) & 0xff) | \ + ((__u64)((m) & 0xff) << 8) | \ + ((__u64)((p) & 0xf) << 16) | \ + ((__u64)((g) & 0x1) << 20) | \ + ((__u64)((h) & 0xf) << 24) | \ + ((__u64)((v) & 0xf) << 28) | \ + ((__u64)((c) & 0x1) << 36))) + +#define DRM_FORMAT_MOD_SYNA_V4H1 \ + DRM_FORMAT_MOD_SYNA_MTR_LINEAR_2D(1, 1, 0, 0, 0, 0, 0) + +#define DRM_FORMAT_MOD_SYNA_V4H3P8 \ + DRM_FORMAT_MOD_SYNA_MTR_LINEAR_2D(1, 3, 8, 0, 0, 0, 0) + +#define DRM_FORMAT_MOD_SYNA_V4H1_64L4_COMPRESSED \ + DRM_FORMAT_MOD_SYNA_MTR_LINEAR_2D(1, 1, 0, 1, 6, 2, 1) + +#define DRM_FORMAT_MOD_SYNA_V4H3P8_64L4_COMPRESSED \ + DRM_FORMAT_MOD_SYNA_MTR_LINEAR_2D(1, 3, 8, 1, 6, 2, 1) + +#define DRM_FORMAT_MOD_SYNA_V4H1_128L128_COMPRESSED \ + DRM_FORMAT_MOD_SYNA_MTR_LINEAR_2D(1, 1, 0, 1, 7, 7, 1) + +#define DRM_FORMAT_MOD_SYNA_V4H3P8_128L128_COMPRESSED \ + DRM_FORMAT_MOD_SYNA_MTR_LINEAR_2D(1, 3, 8, 1, 7, 7, 1) + #if defined(__cplusplus) } #endif --=20 2.17.1