From patchwork Wed Dec 10 08:19:12 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Jacopo Mondi X-Patchwork-Id: 25445 Return-Path: X-Original-To: parsemail@patchwork.libcamera.org Delivered-To: parsemail@patchwork.libcamera.org Received: from lancelot.ideasonboard.com (lancelot.ideasonboard.com [92.243.16.209]) by patchwork.libcamera.org (Postfix) with ESMTPS id D0545C3257 for ; Wed, 10 Dec 2025 08:19:32 +0000 (UTC) Received: from lancelot.ideasonboard.com (localhost [IPv6:::1]) by lancelot.ideasonboard.com (Postfix) with ESMTP id 7E84A61471; Wed, 10 Dec 2025 09:19:32 +0100 (CET) Authentication-Results: lancelot.ideasonboard.com; dkim=pass (1024-bit key; unprotected) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="mphmbd6o"; dkim-atps=neutral Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) by lancelot.ideasonboard.com (Postfix) with ESMTPS id 16A2C610B3 for ; Wed, 10 Dec 2025 09:19:28 +0100 (CET) Received: from [192.168.1.106] (mob-5-90-63-16.net.vodafone.it [5.90.63.16]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id 21A1D153F; Wed, 10 Dec 2025 09:19:26 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1765354766; bh=QXjbNIcKh2ZddYXAH8MPfqV3kQr6veV2XGf+Luzq584=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=mphmbd6ot5AV1RwanDjtdMyS84FK65xGb1GXdwunxuCcF5k2mgmajTw7seKMQ5PVU enM4t9sqlRlB7WkxEry0W/CmX3CQfqyl4N9GxA39m9mggd/JmRSWC/CLwbbxKomVTI ct7PY5RPoPR67r7fkiHtLj+8/DG8XELXuIOT95OM= From: Jacopo Mondi Date: Wed, 10 Dec 2025 09:19:12 +0100 Subject: [PATCH v2 1/6] include: linux: drm_fourcc.h: Update to v6.18 MIME-Version: 1.0 Message-Id: <20251210-headers-update-v6-18-v2-1-3f726742a4c8@ideasonboard.com> References: <20251210-headers-update-v6-18-v2-0-3f726742a4c8@ideasonboard.com> In-Reply-To: <20251210-headers-update-v6-18-v2-0-3f726742a4c8@ideasonboard.com> To: libcamera-devel@lists.libcamera.org Cc: Jacopo Mondi , =?utf-8?b?QmFybmFiw6Fz?= =?utf-8?q?_P=C5=91cze?= X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=13032; i=jacopo.mondi@ideasonboard.com; h=from:subject:message-id; bh=QXjbNIcKh2ZddYXAH8MPfqV3kQr6veV2XGf+Luzq584=; b=owEBbQKS/ZANAwAKAXI0Bo8WoVY8AcsmYgBpOS0MIrXGZVmZ5QfeXA85A/N+/0MQRaNMijN+s 7T6NyRb+ZeJAjMEAAEKAB0WIQS1xD1IgJogio9YOMByNAaPFqFWPAUCaTktDAAKCRByNAaPFqFW PL6bD/9vfqTRaHG6XFXQys4zsqfTiYt8TkCnjZeHqoekZDVL2m7EFdd42xK9OoY6c287dFnQtJe 9v6npLlS8hvwLiZe/DkUgPVQ23eqLSW4luuI1wwIadeMBe6Irp53fo5LeKwz2CE7quRb1Dx9MFZ qOxf6VyaZIv/iQMEAeAfqAkic6XExoSrSPrY8zcL1Qf4cqQn8xm+2a+BZBEFp6m3+DqhKh0AoA7 LfIXCUmqFPNS88c4YWbb7vwdjhFuNCBfXq/P5hW2l2H0Lm5bU1JQgxKP+uZvEIs6SUxhODvbf23 IPrPyVGDsVFst540gQoNR4fGiXS6l6bLXHzB4Lj4R4SEmcwzY1i5Gmj/ypSOIu5I7cxKwJldjMO e/84ie60mJKVgnH+erjXfQGq38cNEELYGpYxCStwOCx/GOhW5Ta60Y258k8xehmh4yFJDcPJ5UW 1RM7CYDJqH9YXEZfIIiwIfoeHiqzHQpfgPoLjp8HPr3qjF4/2Tdt9gE4XhKKGnyeEwyGvNgF5d0 19T7QuefkslBrDjdZGI/C4+QVSar/ZIFtt2dKZeGxiWG0HEYGQQ8PqWj5nkPB6+9Roo53+wIUgT +iVSHzy52Kl07PVKoi8idz4W+ZJbKCpDqc9Z6xFtqETldVv5R3x9eWi57VxbDDjfrVJruyyBAVB bQd3MBtdXZq7P5w== X-Developer-Key: i=jacopo.mondi@ideasonboard.com; a=openpgp; fpr=72392EDC88144A65C701EA9BA5826A2587AD026B X-BeenThere: libcamera-devel@lists.libcamera.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: libcamera-devel-bounces@lists.libcamera.org Sender: "libcamera-devel" Update drm_fourcc.h to Linux kernel version v6.18. As the upstream drm_fourcc.h version doesn't include definitions for RAW Bayer formats, some of the symbols we defined downstream now conflict with new symbols defined in mainline. In particular: and In order not to break the library ABI, maintain the downstream symbols definitions as they are even if they conflict. Signed-off-by: Jacopo Mondi Acked-by: Barnabás Pőcze --- include/linux/drm_fourcc.h | 191 ++++++++++++++++++++++++++++++++++++++++++--- 1 file changed, 180 insertions(+), 11 deletions(-) diff --git a/include/linux/drm_fourcc.h b/include/linux/drm_fourcc.h index db6798776663086c12d321d2ed708edc7ec77f71..e428c33346bae8a8747f6834c434dc0a03eef867 100644 --- a/include/linux/drm_fourcc.h +++ b/include/linux/drm_fourcc.h @@ -222,7 +222,7 @@ extern "C" { #define DRM_FORMAT_ABGR16161616 fourcc_code('A', 'B', '4', '8') /* [63:0] A:B:G:R 16:16:16:16 little endian */ /* - * Floating point 64bpp RGB + * Half-Floating point - 16b/component * IEEE 754-2008 binary16 half-precision float * [15:0] sign:exponent:mantissa 1:5:10 */ @@ -232,6 +232,20 @@ extern "C" { #define DRM_FORMAT_ARGB16161616F fourcc_code('A', 'R', '4', 'H') /* [63:0] A:R:G:B 16:16:16:16 little endian */ #define DRM_FORMAT_ABGR16161616F fourcc_code('A', 'B', '4', 'H') /* [63:0] A:B:G:R 16:16:16:16 little endian */ +#define DRM_FORMAT_R16F fourcc_code('R', ' ', ' ', 'H') /* [15:0] R 16 little endian */ +#define DRM_FORMAT_GR1616F fourcc_code('G', 'R', ' ', 'H') /* [31:0] G:R 16:16 little endian */ +#define DRM_FORMAT_BGR161616F fourcc_code('B', 'G', 'R', 'H') /* [47:0] B:G:R 16:16:16 little endian */ + +/* + * Floating point - 32b/component + * IEEE 754-2008 binary32 float + * [31:0] sign:exponent:mantissa 1:8:23 + */ +#define DRM_FORMAT_R32F fourcc_code('R', ' ', ' ', 'F') /* [31:0] R 32 little endian */ +#define DRM_FORMAT_GR3232F fourcc_code('G', 'R', ' ', 'F') /* [63:0] R:G 32:32 little endian */ +#define DRM_FORMAT_BGR323232F fourcc_code('B', 'G', 'R', 'F') /* [95:0] R:G:B 32:32:32 little endian */ +#define DRM_FORMAT_ABGR32323232F fourcc_code('A', 'B', '8', 'F') /* [127:0] R:G:B:A 32:32:32:32 little endian */ + /* * RGBA format with 10-bit components packed in 64-bit per pixel, with 6 bits * of unused padding per component: @@ -381,6 +395,42 @@ extern "C" { */ #define DRM_FORMAT_Q401 fourcc_code('Q', '4', '0', '1') +/* + * 3 plane YCbCr LSB aligned + * In order to use these formats in a similar fashion to MSB aligned ones + * implementation can multiply the values by 2^6=64. For that reason the padding + * must only contain zeros. + * index 0 = Y plane, [15:0] z:Y [6:10] little endian + * index 1 = Cr plane, [15:0] z:Cr [6:10] little endian + * index 2 = Cb plane, [15:0] z:Cb [6:10] little endian + */ +#define DRM_FORMAT_S010 fourcc_code('S', '0', '1', '0') /* 2x2 subsampled Cb (1) and Cr (2) planes 10 bits per channel */ +#define DRM_FORMAT_S210 fourcc_code('S', '2', '1', '0') /* 2x1 subsampled Cb (1) and Cr (2) planes 10 bits per channel */ +#define DRM_FORMAT_S410 fourcc_code('S', '4', '1', '0') /* non-subsampled Cb (1) and Cr (2) planes 10 bits per channel */ + +/* + * 3 plane YCbCr LSB aligned + * In order to use these formats in a similar fashion to MSB aligned ones + * implementation can multiply the values by 2^4=16. For that reason the padding + * must only contain zeros. + * index 0 = Y plane, [15:0] z:Y [4:12] little endian + * index 1 = Cr plane, [15:0] z:Cr [4:12] little endian + * index 2 = Cb plane, [15:0] z:Cb [4:12] little endian + */ +#define DRM_FORMAT_S012 fourcc_code('S', '0', '1', '2') /* 2x2 subsampled Cb (1) and Cr (2) planes 12 bits per channel */ +#define DRM_FORMAT_S212 fourcc_code('S', '2', '1', '2') /* 2x1 subsampled Cb (1) and Cr (2) planes 12 bits per channel */ +#define DRM_FORMAT_S412 fourcc_code('S', '4', '1', '2') /* non-subsampled Cb (1) and Cr (2) planes 12 bits per channel */ + +/* + * 3 plane YCbCr + * index 0 = Y plane, [15:0] Y little endian + * index 1 = Cr plane, [15:0] Cr little endian + * index 2 = Cb plane, [15:0] Cb little endian + */ +#define DRM_FORMAT_S016 fourcc_code('S', '0', '1', '6') /* 2x2 subsampled Cb (1) and Cr (2) planes 16 bits per channel */ +#define DRM_FORMAT_S216 fourcc_code('S', '2', '1', '6') /* 2x1 subsampled Cb (1) and Cr (2) planes 16 bits per channel */ +#define DRM_FORMAT_S416 fourcc_code('S', '4', '1', '6') /* non-subsampled Cb (1) and Cr (2) planes 16 bits per channel */ + /* * 3 plane YCbCr * index 0: Y plane, [7:0] Y @@ -489,6 +539,8 @@ 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_MTK 0x0b +#define DRM_FORMAT_MOD_VENDOR_APPLE 0x0c #define DRM_FORMAT_MOD_VENDOR_MIPI 0x0b #define DRM_FORMAT_MOD_VENDOR_RPI 0x0c @@ -772,6 +824,31 @@ extern "C" { */ #define I915_FORMAT_MOD_4_TILED_MTL_RC_CCS_CC fourcc_mod_code(INTEL, 15) +/* + * Intel Color Control Surfaces (CCS) for graphics ver. 20 unified compression + * on integrated graphics + * + * The main surface is Tile 4 and at plane index 0. For semi-planar formats + * like NV12, the Y and UV planes are Tile 4 and are located at plane indices + * 0 and 1, respectively. The CCS for all planes are stored outside of the + * GEM object in a reserved memory area dedicated for the storage of the + * CCS data for all compressible GEM objects. + */ +#define I915_FORMAT_MOD_4_TILED_LNL_CCS fourcc_mod_code(INTEL, 16) + +/* + * Intel Color Control Surfaces (CCS) for graphics ver. 20 unified compression + * on discrete graphics + * + * The main surface is Tile 4 and at plane index 0. For semi-planar formats + * like NV12, the Y and UV planes are Tile 4 and are located at plane indices + * 0 and 1, respectively. The CCS for all planes are stored outside of the + * GEM object in a reserved memory area dedicated for the storage of the + * CCS data for all compressible GEM objects. The GEM object must be stored in + * contiguous memory with a size aligned to 64KB + */ +#define I915_FORMAT_MOD_4_TILED_BMG_CCS fourcc_mod_code(INTEL, 17) + /* * IPU3 Bayer packing layout * @@ -780,7 +857,7 @@ extern "C" { * the 6 most significant bits in the last byte unused. The format is little * endian. */ -#define IPU3_FORMAT_MOD_PACKED fourcc_mod_code(INTEL, 13) +#define IPU3_FORMAT_MOD_PACKED fourcc_mod_code(INTEL, 18) /* * Tiled, NV12MT, grouped in 64 (pixels) x 32 (lines) -sized macroblocks @@ -978,14 +1055,20 @@ extern "C" { * 2 = Gob Height 8, Turing+ Page Kind mapping * 3 = Reserved for future use. * - * 22:22 s Sector layout. On Tegra GPUs prior to Xavier, there is a further - * bit remapping step that occurs at an even lower level than the - * page kind and block linear swizzles. This causes the layout of - * surfaces mapped in those SOC's GPUs to be incompatible with the - * equivalent mapping on other GPUs in the same system. - * - * 0 = Tegra K1 - Tegra Parker/TX2 Layout. - * 1 = Desktop GPU and Tegra Xavier+ Layout + * 22:22 s Sector layout. There is a further bit remapping step that occurs + * 26:27 at an even lower level than the page kind and block linear + * swizzles. This causes the bit arrangement of surfaces in memory + * to differ subtly, and prevents direct sharing of surfaces between + * GPUs with different layouts. + * + * 0 = Tegra K1 - Tegra Parker/TX2 Layout + * 1 = Pre-GB20x, GB20x 32+ bpp, GB10, Tegra Xavier-Orin Layout + * 2 = GB20x(Blackwell 2)+ 8 bpp surface layout + * 3 = GB20x(Blackwell 2)+ 16 bpp surface layout + * 4 = Reserved for future use. + * 5 = Reserved for future use. + * 6 = Reserved for future use. + * 7 = Reserved for future use. * * 25:23 c Lossless Framebuffer Compression type. * @@ -1000,7 +1083,7 @@ extern "C" { * 6 = Reserved for future use * 7 = Reserved for future use * - * 55:25 - Reserved for future use. Must be zero. + * 55:28 - Reserved for future use. Must be zero. */ #define DRM_FORMAT_MOD_NVIDIA_BLOCK_LINEAR_2D(c, s, g, k, h) \ fourcc_mod_code(NVIDIA, (0x10 | \ @@ -1008,6 +1091,7 @@ extern "C" { (((k) & 0xff) << 12) | \ (((g) & 0x3) << 20) | \ (((s) & 0x1) << 22) | \ + (((s) & 0x6) << 25) | \ (((c) & 0x7) << 23))) /* To grandfather in prior block linear format modifiers to the above layout, @@ -1508,6 +1592,90 @@ drm_fourcc_canonicalize_nvidia_format_mod(__u64 modifier) */ #define AMLOGIC_FBC_OPTION_MEM_SAVING (1ULL << 0) +/* MediaTek modifiers + * Bits Parameter Notes + * ----- ------------------------ --------------------------------------------- + * 7: 0 TILE LAYOUT Values are MTK_FMT_MOD_TILE_* + * 15: 8 COMPRESSION Values are MTK_FMT_MOD_COMPRESS_* + * 23:16 10 BIT LAYOUT Values are MTK_FMT_MOD_10BIT_LAYOUT_* + * + */ + +#define DRM_FORMAT_MOD_MTK(__flags) fourcc_mod_code(MTK, __flags) + +/* + * MediaTek Tiled Modifier + * The lowest 8 bits of the modifier is used to specify the tiling + * layout. Only the 16L_32S tiling is used for now, but we define an + * "untiled" version and leave room for future expansion. + */ +#define MTK_FMT_MOD_TILE_MASK 0xf +#define MTK_FMT_MOD_TILE_NONE 0x0 +#define MTK_FMT_MOD_TILE_16L32S 0x1 + +/* + * Bits 8-15 specify compression options + */ +#define MTK_FMT_MOD_COMPRESS_MASK (0xf << 8) +#define MTK_FMT_MOD_COMPRESS_NONE (0x0 << 8) +#define MTK_FMT_MOD_COMPRESS_V1 (0x1 << 8) + +/* + * Bits 16-23 specify how the bits of 10 bit formats are + * stored out in memory + */ +#define MTK_FMT_MOD_10BIT_LAYOUT_MASK (0xf << 16) +#define MTK_FMT_MOD_10BIT_LAYOUT_PACKED (0x0 << 16) +#define MTK_FMT_MOD_10BIT_LAYOUT_LSBTILED (0x1 << 16) +#define MTK_FMT_MOD_10BIT_LAYOUT_LSBRASTER (0x2 << 16) + +/* alias for the most common tiling format */ +#define DRM_FORMAT_MOD_MTK_16L_32S_TILE DRM_FORMAT_MOD_MTK(MTK_FMT_MOD_TILE_16L32S) + +/* + * Apple GPU-tiled layouts. + * + * Apple GPUs support nonlinear tilings with optional lossless compression. + * + * GPU-tiled images are divided into 16KiB tiles: + * + * Bytes per pixel Tile size + * --------------- --------- + * 1 128x128 + * 2 128x64 + * 4 64x64 + * 8 64x32 + * 16 32x32 + * + * Tiles are raster-order. Pixels within a tile are interleaved (Morton order). + * + * Compressed images pad the body to 128-bytes and are immediately followed by a + * metadata section. The metadata section rounds the image dimensions to + * powers-of-two and contains 8 bytes for each 16x16 compression subtile. + * Subtiles are interleaved (Morton order). + * + * All images are 128-byte aligned. + * + * These layouts fundamentally do not have meaningful strides. No matter how we + * specify strides for these layouts, userspace unaware of Apple image layouts + * will be unable to use correctly the specified stride for any purpose. + * Userspace aware of the image layouts do not use strides. The most "correct" + * convention would be setting the image stride to 0. Unfortunately, some + * software assumes the stride is at least (width * bytes per pixel). We + * therefore require that stride equals (width * bytes per pixel). Since the + * stride is arbitrary here, we pick the simplest convention. + * + * Although containing two sections, compressed image layouts are treated in + * software as a single plane. This is modelled after AFBC, a similar + * scheme. Attempting to separate the sections to be "explicit" in DRM would + * only generate more confusion, as software does not treat the image this way. + * + * For detailed information on the hardware image layouts, see + * https://docs.mesa3d.org/drivers/asahi.html#image-layouts + */ +#define DRM_FORMAT_MOD_APPLE_GPU_TILED fourcc_mod_code(APPLE, 1) +#define DRM_FORMAT_MOD_APPLE_GPU_TILED_COMPRESSED fourcc_mod_code(APPLE, 2) + /* * AMD modifiers * @@ -1571,6 +1739,7 @@ drm_fourcc_canonicalize_nvidia_format_mod(__u64 modifier) * 64K_D_2D on GFX12 is identical to 64K_D on GFX11. */ #define AMD_FMT_MOD_TILE_GFX9_64K_D 10 +#define AMD_FMT_MOD_TILE_GFX9_4K_D_X 22 #define AMD_FMT_MOD_TILE_GFX9_64K_S_X 25 #define AMD_FMT_MOD_TILE_GFX9_64K_D_X 26 #define AMD_FMT_MOD_TILE_GFX9_64K_R_X 27