From patchwork Mon Sep 30 15:31:55 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Louis Chauvet X-Patchwork-Id: 13816632 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A3FA9CE835C for ; Mon, 30 Sep 2024 15:33:29 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 2826710E544; Mon, 30 Sep 2024 15:33:29 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=bootlin.com header.i=@bootlin.com header.b="KEDZy4To"; dkim-atps=neutral Received: from relay2-d.mail.gandi.net (relay2-d.mail.gandi.net [217.70.183.194]) by gabe.freedesktop.org (Postfix) with ESMTPS id 03E3510E542 for ; Mon, 30 Sep 2024 15:33:27 +0000 (UTC) Received: by mail.gandi.net (Postfix) with ESMTPSA id 8D85A4000D; Mon, 30 Sep 2024 15:33:21 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bootlin.com; s=gm1; t=1727710406; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=bYBVsTbvX0Vvhdgtk3+NNjlF1mcR2qZl1/lxJqF5EiU=; b=KEDZy4To1wDReMvJJZnoDXhYaI3eMl7u+xZ7HC2Y+AUYvowVSFmImmt7Xm0vJnT/y0Y/JM vfttmlXo1MGTHCZuFskAsNQf3NBL+lcLiGC+iSW22K8eEDUk3s5KnjO2cYGeBby6RAuvSz ECcNc85o9zCD+ha2PU6sWt0VnpWBl2KVS5c/kWfkWL72YCetlNXbOYxbDAMUGKSrq6TuTh jGX3VX7gxbHV+YPAM+wfM5uDJwwAL3EJjC4HnmdMrKpsHBlsSoZUzopoDAStLTlv3KLN8R 1bFLBZwGarOGWmt5aqCD3NV/hfyOBRPUDZ+ecUt8AWpXxxmAwE6tcRf9UGNkNg== From: Louis Chauvet Date: Mon, 30 Sep 2024 17:31:55 +0200 Subject: [PATCH v11 15/15] drm/vkms: Add support for DRM_FORMAT_R* MIME-Version: 1.0 Message-Id: <20240930-yuv-v11-15-4b1a26bcfc96@bootlin.com> References: <20240930-yuv-v11-0-4b1a26bcfc96@bootlin.com> In-Reply-To: <20240930-yuv-v11-0-4b1a26bcfc96@bootlin.com> To: Rodrigo Siqueira , Melissa Wen , =?utf-8?q?Ma=C3=ADra_Canal?= , Haneen Mohammed , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Jonathan Corbet , Louis Chauvet , Simona Vetter , rdunlap@infradead.org, arthurgrillo@riseup.net, pekka.paalanen@haloniitty.fi, Simona Vetter Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, thomas.petazzoni@bootlin.com, jeremie.dautheribes@bootlin.com, miquel.raynal@bootlin.com, seanpaul@google.com, marcheu@google.com, nicolejadeyee@google.com, Pekka Paalanen X-Mailer: b4 0.14.1 X-Developer-Signature: v=1; a=openpgp-sha256; l=6383; i=louis.chauvet@bootlin.com; h=from:subject:message-id; bh=XA5++UHB22P8byetvVhtzmOdqkragW9YoMtVdS2c/kE=; b=owEBbQKS/ZANAwAIASCtLsZbECziAcsmYgBm+sRxslpqJAhX4maJHCF8NUspIRb2MkwvIHXyK vPeFPjJyROJAjMEAAEIAB0WIQRPj7g/vng8MQxQWQQgrS7GWxAs4gUCZvrEcQAKCRAgrS7GWxAs 4jB6D/0SwCgBy/5Qg2V5Y2dFTXJRG+u/p5Hyv1qLu/8p+zBBY751uzSTyz8+jCSyh2B69njlZxw 4xKajdPgMA5H9ekfn0PDfUOFiYOiekKHkQAXymRJtoFsQvwAP41hNIT9zsJSfIxkW+9bt0iS/3t 4jv06zlx0VXaneW8Xeppu9nrFTTlCQK1cxZIVl3kSYqIeE4qlItsHqEou7sjTTtiF1SBpp06mIw nsbsBH4zl+bslMlVe1K1BnP3n7/qJvxab/t5eBUJiVSDZqJRDw73VdJLW2nWm+45GjQ48kEtfNH uYWuXHgfFkri+VB18ODCMP5jotB+LppXtoSX3Yw39p8ylCOXPQ4ZmllGT9UgD/xG9yhN78yrc+h mSHtmSKT3y/TF0d9bckA2oJwRV3IKxQTjA80/8IO7GopAYtADys10TIAWqZ5nigBKmrNA31POcK mKwXylkvpXexJfSh7hIenZrW4PG+PGlDhdKrktxnqJt+RF8MOIFn+vWt29anm7b4FvhiKK2WL+y FzmSOKQDC/qbhFe3oIfMQpzMEnrJLJ/oXkMzM42Aem/+jLmYEsfv+UUdGN6/oAe5fV648UIGL8d iv+tyBpdHqIfKlWjgJb4XtOg1ywSLiZi+/soY+HEn8bry4G0hu84UyjFojQWlWk+3AZyDucvQ7j DQKZa1zDudAfNRw== X-Developer-Key: i=louis.chauvet@bootlin.com; a=openpgp; fpr=8B7104AE9A272D6693F527F2EC1883F55E0B40A5 X-GND-Sasl: louis.chauvet@bootlin.com X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" This add the support for: - R1/R2/R4/R8 R1 format was tested with [1] and [2]. [1]: https://lore.kernel.org/r/20240313-new_rotation-v2-0-6230fd5cae59@bootlin.com [2]: https://lore.kernel.org/igt-dev/20240306-b4-kms_tests-v1-0-8fe451efd2ac@bootlin.com/ Reviewed-by: Pekka Paalanen Signed-off-by: Louis Chauvet --- drivers/gpu/drm/vkms/vkms_formats.c | 110 +++++++++++++++++++++++++++++++++++- drivers/gpu/drm/vkms/vkms_plane.c | 4 ++ 2 files changed, 113 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/vkms/vkms_formats.c b/drivers/gpu/drm/vkms/vkms_formats.c index 0b201185eae7..f9841b8000c4 100644 --- a/drivers/gpu/drm/vkms/vkms_formats.c +++ b/drivers/gpu/drm/vkms/vkms_formats.c @@ -249,6 +249,16 @@ static struct pixel_argb_u16 argb_u16_from_RGB565(const __le16 *pixel) return out_pixel; } +static struct pixel_argb_u16 argb_u16_from_gray8(u16 gray) +{ + return argb_u16_from_u8888(255, gray, gray, gray); +} + +static struct pixel_argb_u16 argb_u16_from_grayu16(u16 gray) +{ + return argb_u16_from_u16161616(0xFFFF, gray, gray, gray); +} + VISIBLE_IF_KUNIT struct pixel_argb_u16 argb_u16_from_yuv888(u8 y, u8 channel_1, u8 channel_2, const struct conversion_matrix *matrix) { @@ -286,7 +296,7 @@ EXPORT_SYMBOL_IF_KUNIT(argb_u16_from_yuv888); * The following functions are read_line function for each pixel format supported by VKMS. * * They read a line starting at the point @x_start,@y_start following the @direction. The result - * is stored in @out_pixel and in the format ARGB16161616. + * is stored in @out_pixel and in a 64 bits format, see struct pixel_argb_u16. * * These functions are very repetitive, but the innermost pixel loops must be kept inside these * functions for performance reasons. Some benchmarking was done in [1] where having the innermost @@ -295,6 +305,96 @@ EXPORT_SYMBOL_IF_KUNIT(argb_u16_from_yuv888); * [1]: https://lore.kernel.org/dri-devel/d258c8dc-78e9-4509-9037-a98f7f33b3a3@riseup.net/ */ +static void Rx_read_line(const struct vkms_plane_state *plane, int x_start, + int y_start, enum pixel_read_direction direction, int count, + struct pixel_argb_u16 out_pixel[]) +{ + struct pixel_argb_u16 *end = out_pixel + count; + int bits_per_pixel = drm_format_info_bpp(plane->frame_info->fb->format, 0); + u8 *src_pixels; + int rem_x, rem_y; + + WARN_ONCE(drm_format_info_block_height(plane->frame_info->fb->format, 0) != 1, + "%s() only support formats with block_h == 1", __func__); + + packed_pixels_addr(plane->frame_info, x_start, y_start, 0, &src_pixels, &rem_x, &rem_y); + int bit_offset = (8 - bits_per_pixel) - rem_x * bits_per_pixel; + int step = get_block_step_bytes(plane->frame_info->fb, direction, 0); + int mask = (0x1 << bits_per_pixel) - 1; + int lum_per_level = 0xFFFF / mask; + + if (direction == READ_LEFT_TO_RIGHT || direction == READ_RIGHT_TO_LEFT) { + int restart_bit_offset; + int step_bit_offset; + + if (direction == READ_LEFT_TO_RIGHT) { + restart_bit_offset = 8 - bits_per_pixel; + step_bit_offset = -bits_per_pixel; + } else { + restart_bit_offset = 0; + step_bit_offset = bits_per_pixel; + } + + while (out_pixel < end) { + u8 val = ((*src_pixels) >> bit_offset) & mask; + + *out_pixel = argb_u16_from_grayu16((int)val * lum_per_level); + + bit_offset += step_bit_offset; + if (bit_offset < 0 || 8 <= bit_offset) { + bit_offset = restart_bit_offset; + src_pixels += step; + } + out_pixel += 1; + } + } else if (direction == READ_TOP_TO_BOTTOM || direction == READ_BOTTOM_TO_TOP) { + while (out_pixel < end) { + u8 val = (*src_pixels >> bit_offset) & mask; + *out_pixel = argb_u16_from_grayu16((int)val * lum_per_level); + src_pixels += step; + out_pixel += 1; + } + } +} + +static void R1_read_line(const struct vkms_plane_state *plane, int x_start, + int y_start, enum pixel_read_direction direction, int count, + struct pixel_argb_u16 out_pixel[]) +{ + Rx_read_line(plane, x_start, y_start, direction, count, out_pixel); +} + +static void R2_read_line(const struct vkms_plane_state *plane, int x_start, + int y_start, enum pixel_read_direction direction, int count, + struct pixel_argb_u16 out_pixel[]) +{ + Rx_read_line(plane, x_start, y_start, direction, count, out_pixel); +} + +static void R4_read_line(const struct vkms_plane_state *plane, int x_start, + int y_start, enum pixel_read_direction direction, int count, + struct pixel_argb_u16 out_pixel[]) +{ + Rx_read_line(plane, x_start, y_start, direction, count, out_pixel); +} + +static void R8_read_line(const struct vkms_plane_state *plane, int x_start, + int y_start, enum pixel_read_direction direction, int count, + struct pixel_argb_u16 out_pixel[]) +{ + struct pixel_argb_u16 *end = out_pixel + count; + u8 *src_pixels; + int step = get_block_step_bytes(plane->frame_info->fb, direction, 0); + + packed_pixels_addr_1x1(plane->frame_info, x_start, y_start, 0, &src_pixels); + + while (out_pixel < end) { + *out_pixel = argb_u16_from_gray8(*src_pixels); + src_pixels += step; + out_pixel += 1; + } +} + static void ARGB8888_read_line(const struct vkms_plane_state *plane, int x_start, int y_start, enum pixel_read_direction direction, int count, struct pixel_argb_u16 out_pixel[]) @@ -606,6 +706,14 @@ pixel_read_line_t get_pixel_read_line_function(u32 format) case DRM_FORMAT_YVU422: case DRM_FORMAT_YVU444: return &planar_yuv_read_line; + case DRM_FORMAT_R1: + return &R1_read_line; + case DRM_FORMAT_R2: + return &R2_read_line; + case DRM_FORMAT_R4: + return &R4_read_line; + case DRM_FORMAT_R8: + return &R8_read_line; default: /* * This is a bug in vkms_plane_atomic_check(). All the supported diff --git a/drivers/gpu/drm/vkms/vkms_plane.c b/drivers/gpu/drm/vkms/vkms_plane.c index 8f764a108b00..67f891e7ac58 100644 --- a/drivers/gpu/drm/vkms/vkms_plane.c +++ b/drivers/gpu/drm/vkms/vkms_plane.c @@ -30,6 +30,10 @@ static const u32 vkms_formats[] = { DRM_FORMAT_YVU420, DRM_FORMAT_YVU422, DRM_FORMAT_YVU444, + DRM_FORMAT_R1, + DRM_FORMAT_R2, + DRM_FORMAT_R4, + DRM_FORMAT_R8, }; static struct drm_plane_state *