From nobody Wed Nov 27 08:32:44 2024 Received: from us-smtp-delivery-124.mimecast.com (us-smtp-delivery-124.mimecast.com [170.10.129.124]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9A72A216A3B for ; Fri, 11 Oct 2024 10:56:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=170.10.129.124 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728644181; cv=none; b=el4OCG6BrTBWbPB7KJ/xiJ5yg5xpIgXbZlbOV4nzNO2tD/7nYncoiPbPGNfQElLhCVcJ1WNasbXysX7cPBBDeOvAQ/E0gBLrzWfAm2WTEXKZpLU12S1qIDnD8MLS5B5l5UNiBvNtRY9SvOmrMMHJP7mxEbuhD5aJXlWQiyJviQA= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728644181; c=relaxed/simple; bh=fl0m+h+0ta8bmfvVqG0QE/oG1e2Qehr4IcXcK18nnxo=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=UC5IsRkFlLZackMARIXwTRCxfpYj08OYVwjHg255igxUxOKExQJ08Pb6pmAaUQ1TS9jXyVIOIbfpO3f5WwV+EDimyqCUrZbQA7jY0kerQy7o2hQPGr8zwu9HLSXFWjsE8aJ/xaAFdHw21PG29rf/FIBexv/ZPEVNzFz4NEMEftg= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com; spf=pass smtp.mailfrom=redhat.com; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b=ZDNpN5ga; arc=none smtp.client-ip=170.10.129.124 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=redhat.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=redhat.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=redhat.com header.i=@redhat.com header.b="ZDNpN5ga" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1728644178; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=XvqoNQoCBK9gj/IJ1E++Q+I3Hd5/1m/NZeNUHiOJE8E=; b=ZDNpN5gaa0fnyEjjLIwXja80/vjpmBGE9FZlxC45bG3iaQiKixisOdWW/y9wzXQzNW+KTt FjFmQGlGLuWMLVjT/L9X2y+CYO3NbhVP+S4FO6Z5VDbgKkUlRyBAm8LxY8ZTyVTGqjO6Xq a237ZzJ4OIq0UICZby2OP2w5y3vOMl0= Received: from mx-prod-mc-05.mail-002.prod.us-west-2.aws.redhat.com (ec2-54-186-198-63.us-west-2.compute.amazonaws.com [54.186.198.63]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.3, cipher=TLS_AES_256_GCM_SHA384) id us-mta-55-9anfNptEMWSbv5teTupM-A-1; Fri, 11 Oct 2024 06:56:13 -0400 X-MC-Unique: 9anfNptEMWSbv5teTupM-A-1 Received: from mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com (mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com [10.30.177.40]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by mx-prod-mc-05.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTPS id C7D1C1955EAD; Fri, 11 Oct 2024 10:56:11 +0000 (UTC) Received: from hydra.redhat.com (unknown [10.39.192.224]) by mx-prod-int-04.mail-002.prod.us-west-2.aws.redhat.com (Postfix) with ESMTP id 4609F19560AA; Fri, 11 Oct 2024 10:56:07 +0000 (UTC) From: Jocelyn Falempe To: Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , John Ogness , Javier Martinez Canillas , "Guilherme G . Piccoli" , bluescreen_avenger@verizon.net, Caleb Connolly , dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org Cc: Jocelyn Falempe Subject: [PATCH v4 7/7] drm/log: Add integer scaling support Date: Fri, 11 Oct 2024 12:50:04 +0200 Message-ID: <20241011105526.615812-8-jfalempe@redhat.com> In-Reply-To: <20241011105526.615812-1-jfalempe@redhat.com> References: <20241011105526.615812-1-jfalempe@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable X-Scanned-By: MIMEDefang 3.0 on 10.30.177.40 Content-Type: text/plain; charset="utf-8" Add a module parameter, to increase the font size for HiDPI screen. Even with CONFIG_FONT_TER16x32, it can still be a bit small to read. In this case, adding drm_log.scale=3D2 to your kernel command line will double the character size. Signed-off-by: Jocelyn Falempe --- drivers/gpu/drm/drm_log.c | 27 ++++++++++++++++++--------- 1 file changed, 18 insertions(+), 9 deletions(-) diff --git a/drivers/gpu/drm/drm_log.c b/drivers/gpu/drm/drm_log.c index 07d151300146..e44c10819bd0 100644 --- a/drivers/gpu/drm/drm_log.c +++ b/drivers/gpu/drm/drm_log.c @@ -25,6 +25,10 @@ MODULE_AUTHOR("Jocelyn Falempe"); MODULE_DESCRIPTION("DRM boot logger"); MODULE_LICENSE("GPL"); =20 +static uint scale =3D 1; +module_param(scale, uint, 0444); +MODULE_PARM_DESC(scale, "Integer scaling factor for drm_log, default is 1"= ); + /** * DOC: overview * @@ -38,6 +42,8 @@ struct drm_log_scanout { const struct font_desc *font; u32 rows; u32 columns; + u32 scaled_font_h; + u32 scaled_font_w; u32 line; u32 format; u32 px_width; @@ -67,7 +73,7 @@ static struct drm_log *console_to_drm_log(struct console = *con) =20 static void drm_log_blit(struct iosys_map *dst, unsigned int dst_pitch, const u8 *src, unsigned int src_pitch, - u32 height, u32 width, u32 scale, u32 px_width, u32 color) + u32 height, u32 width, u32 px_width, u32 color) { switch (px_width) { case 2: @@ -87,7 +93,7 @@ static void drm_log_blit(struct iosys_map *dst, unsigned = int dst_pitch, static void drm_log_clear_line(struct drm_log_scanout *scanout, u32 line) { struct drm_framebuffer *fb =3D scanout->buffer->fb; - unsigned long height =3D scanout->font->height; + unsigned long height =3D scanout->scaled_font_h; struct iosys_map map; struct drm_rect r =3D DRM_RECT_INIT(0, line * height, fb->width, height); =20 @@ -107,8 +113,8 @@ static void drm_log_draw_line(struct drm_log_scanout *s= canout, const char *s, size_t font_pitch =3D DIV_ROUND_UP(font->width, 8); const u8 *src; u32 px_width =3D fb->format->cpp[0]; - struct drm_rect r =3D DRM_RECT_INIT(0, scanout->line * font->height, - fb->width, (scanout->line + 1) * font->height); + struct drm_rect r =3D DRM_RECT_INIT(0, scanout->line * scanout->scaled_fo= nt_h, + fb->width, (scanout->line + 1) * scanout->scaled_font_h); u32 i; =20 if (drm_client_buffer_vmap_local(scanout->buffer, &map)) @@ -118,9 +124,10 @@ static void drm_log_draw_line(struct drm_log_scanout *= scanout, const char *s, for (i =3D 0; i < len && i < scanout->columns; i++) { u32 color =3D (i < prefix_len) ? scanout->prefix_color : scanout->front_= color; src =3D drm_draw_get_char_bitmap(font, s[i], font_pitch); - drm_log_blit(&map, fb->pitches[0], src, font_pitch, font->height, font->= width, - 1, px_width, color); - iosys_map_incr(&map, font->width * px_width); + drm_log_blit(&map, fb->pitches[0], src, font_pitch, + scanout->scaled_font_h, scanout->scaled_font_w, + px_width, color); + iosys_map_incr(&map, scanout->scaled_font_w * px_width); } =20 scanout->line++; @@ -205,8 +212,10 @@ static int drm_log_setup_modeset(struct drm_client_dev= *client, return -ENOMEM; } mode_set->fb =3D scanout->buffer->fb; - scanout->rows =3D height / scanout->font->height; - scanout->columns =3D width / scanout->font->width; + scanout->scaled_font_h =3D scanout->font->height * scale; + scanout->scaled_font_w =3D scanout->font->width * scale; + scanout->rows =3D height / scanout->scaled_font_h; + scanout->columns =3D width / scanout->scaled_font_w; scanout->front_color =3D drm_draw_color_from_xrgb8888(0xffffff, format); scanout->prefix_color =3D drm_draw_color_from_xrgb8888(0x4e9a06, format); return 0; --=20 2.46.2