From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 E7F3B3806B0; Fri, 7 Aug 2026 14:57:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786114655; cv=none; b=M0IvkiOoHWVt9LCXtA5Qs3fR1knq435FpcUQ/f01XA3h1w78KU/4uEcGdBfOG/R54ujZtF1GxPilSNxpiVdKYrMBpsXnkI9QZ14ZaOjEksh24seGkKXc1haTPuycjVpDiWQjCCHkkNrpDxTPM7J4KvnQYyRBzqAT/4piLhhdsoY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1786114655; c=relaxed/simple; bh=aNgMHEfDOGGzw8tlco2WHQ9jFA9iz3aKFKegSbUkGbk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=jXhxz959bFEGrEPv6mU5goABurOuLh/lFCg3AGgAZjeXnNeN+hRYQZ2C9vspBE+ULl/7851hTcn+HkVgRmIca+Iso2Zc7mhpGhwU3Ovbq2UDi1EtHoA29K+fHpSNjnu3RYBFoTuRje/3K+Rp9ZBPNwMek5+dnN3BtQ82vk2UMEc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b=0OiSKdHm; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linuxfoundation.org header.i=@linuxfoundation.org header.b="0OiSKdHm" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 18FFF1F000E9; Fri, 7 Aug 2026 14:57:32 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linuxfoundation.org; s=korg; t=1786114653; bh=i7qAU9PC85pfCMpTQw3RP3v9Z9elbZRQagbuUnQXWrc=; h=From:To:Cc:Subject:Date:In-Reply-To:References; b=0OiSKdHmExVI5i1sO+qICb7IuNeeWXFdiYR9Wi78F7D7XvzQzEEVBxxUMEcAw87Vc QTgXpk/vxf/0qveEBQL0IeC04hEk44J72t3nmR5khc/9uMipB4CzbXFvsaPJRNz8uT RhdA9ePb3WjFAZCOweLmSDuwoOLNh+wki8NOXQc0= From: Greg Kroah-Hartman To: stable@vger.kernel.org Cc: Greg Kroah-Hartman , patches@lists.linux.dev, Thomas Zimmermann , dri-devel@lists.freedesktop.org, linux-tegra@vger.kernel.org, Thierry Reding , Sasha Levin Subject: [PATCH 6.12 315/337] drm/tegra: fbdev: Remove offset into framebuffer memory Date: Fri, 7 Aug 2026 16:38:38 +0200 Message-ID: <20260807143425.357899490@linuxfoundation.org> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260807143418.516897842@linuxfoundation.org> References: <20260807143418.516897842@linuxfoundation.org> User-Agent: quilt/0.69 X-stable: review X-Patchwork-Hint: ignore Precedence: bulk X-Mailing-List: linux-tegra@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit 6.12-stable review patch. If anyone has any objections, please let me know. ------------------ From: Thomas Zimmermann [ Upstream commit a18b6e30ecd69096beda4a0c96d2570900c3879a ] The screen_buffer field in struct fb_info contains the kernel address of the first byte of framebuffer memory. Do not add the display offset. This offset only describes scrolling during scanout. Signed-off-by: Thomas Zimmermann Fixes: de2ba664c30f ("gpu: host1x: drm: Add memory manager and fb") Cc: dri-devel@lists.freedesktop.org Cc: linux-tegra@vger.kernel.org Cc: # v3.10+ Signed-off-by: Thierry Reding Link: https://patch.msgid.link/20260421073646.144712-3-tzimmermann@suse.de Signed-off-by: Sasha Levin Signed-off-by: Greg Kroah-Hartman --- drivers/gpu/drm/tegra/fbdev.c | 8 ++------ 1 file changed, 2 insertions(+), 6 deletions(-) --- a/drivers/gpu/drm/tegra/fbdev.c +++ b/drivers/gpu/drm/tegra/fbdev.c @@ -75,7 +75,6 @@ static int tegra_fbdev_probe(struct drm_ struct fb_info *info = helper->info; unsigned int bytes_per_pixel; struct drm_framebuffer *fb; - unsigned long offset; struct tegra_bo *bo; size_t size; int err; @@ -112,9 +111,6 @@ static int tegra_fbdev_probe(struct drm_ drm_fb_helper_fill_info(info, helper, sizes); - offset = info->var.xoffset * bytes_per_pixel + - info->var.yoffset * fb->pitches[0]; - if (bo->pages) { bo->vaddr = vmap(bo->pages, bo->num_pages, VM_MAP, pgprot_writecombine(PAGE_KERNEL)); @@ -126,9 +122,9 @@ static int tegra_fbdev_probe(struct drm_ } info->flags |= FBINFO_VIRTFB; - info->screen_buffer = bo->vaddr + offset; + info->screen_buffer = bo->vaddr; info->screen_size = size; - info->fix.smem_start = (unsigned long)(bo->iova + offset); + info->fix.smem_start = (unsigned long)(bo->iova); info->fix.smem_len = size; return 0;