From nobody Sat May 9 09:09:06 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 375D61DB14B; Fri, 24 Jan 2025 22:01:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737756080; cv=none; b=DHdSjqWjQF25568g5VlFQQsdxWRMCqv4EpzEx2a5480QoaJmmMfrkM+lbOO5vwHJaT5GHGKR7G9oJz8R60Rh57Z5mwZNdB8Mct1ExkUNWCgZGito5GZYyoUsHN/SjMucElkWqjvmMIfyuWaYGB4/S7W1cwh2YlioeD6vDqHGrnQ= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737756080; c=relaxed/simple; bh=qLE2mO+ojZP3WRe77I73qtaKHV6sBKQCsfMgEoo6rjY=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:To:Cc; b=gSAzB7JnueoFNKMTKQChAKBLZKtZ75jbL1WdD8Qud4IGVpX/vwbAS4+pwzRqIA4hJZmdzn8BKNLmyz51BtDNOOLLdcLcdIgx/7Gg+A/WTr48boVpTaVAghOjDhAu9v6RpKUE40poS0pVlHrK0U4ELgzsDtDLfcUGQ9MK/G5PYcM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Yvld86VO; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Yvld86VO" Received: by smtp.kernel.org (Postfix) with ESMTPS id 9A091C4CEE0; Fri, 24 Jan 2025 22:01:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1737756079; bh=qLE2mO+ojZP3WRe77I73qtaKHV6sBKQCsfMgEoo6rjY=; h=From:Date:Subject:To:Cc:Reply-To:From; b=Yvld86VOJTczcfHrXZTiG8qfjUSC5KNew+1btbukzUqd7SfwI75QI60zflIy5ewlQ uF2Vd1FSs+LNvYucGOhWd3meaI5qdSRSiAPHlyf6S2hu3ksIXBBIZyz3FAB8qNbl1m SR7EUmPrB8qulijDa0N1Ehtjw9k/UpIN+vGNo4xfnCPsm5eNMBJ4ip/W/CRTZtnvNF LQBpnZRvGTeSHotpQVq1pVVQnmEwhB1OYhPtHf8bTSyiMJijBSnuRpuQ82/LlTsZsb JqC3mZNzvEgpR0o3xeViB29OPAVAMLKnNLUZtSK5+nCNAH5GzT8bSExnQ/B3Jw0vD7 9JpfXrChk+hZw== Received: from aws-us-west-2-korg-lkml-1.web.codeaurora.org (localhost.localdomain [127.0.0.1]) by smtp.lore.kernel.org (Postfix) with ESMTP id 81715C02181; Fri, 24 Jan 2025 22:01:19 +0000 (UTC) From: Sasha Finkelstein via B4 Relay Date: Fri, 24 Jan 2025 23:01:14 +0100 Subject: [PATCH RESEND] drm/virtio: Align host mapping request to maximum platform page size Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Message-Id: <20250124-virtgpu-mixed-page-size-v1-1-480403790bac@gmail.com> To: David Airlie , Gerd Hoffmann , Gurchetan Singh , Chia-I Wu , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Simona Vetter Cc: dri-devel@lists.freedesktop.org, virtualization@lists.linux.dev, linux-kernel@vger.kernel.org, asahi@lists.linux.dev, Sasha Finkelstein X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=ed25519-sha256; t=1737756078; l=1565; i=fnkl.kernel@gmail.com; s=20241124; h=from:subject:message-id; bh=kZPtOSFoeKdYXDLiLMAu8imjAvkE+p3WWhtPNO7Zvzo=; b=9MWmwPjL413A+tDyynDLKuMS7XAcdCm2U6agLSkGrU1BjPo6jk642e7xrktGylUClUBhL0LTk StEaXCSrM8CCsIbzHXfKyb9W9PYGTmeIRjq3ZrgkqACvU4B9QKlVrW3 X-Developer-Key: i=fnkl.kernel@gmail.com; a=ed25519; pk=aSkp1PdZ+eF4jpMO6oLvz/YfT5XkBUneWwyhQrOgmsU= X-Endpoint-Received: by B4 Relay for fnkl.kernel@gmail.com/20241124 with auth_id=283 X-Original-From: Sasha Finkelstein Reply-To: fnkl.kernel@gmail.com From: Sasha Finkelstein This allows running different page sizes between host and guest on platforms that support mixed page sizes. Signed-off-by: Sasha Finkelstein --- drivers/gpu/drm/virtio/virtgpu_vram.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/virtio/virtgpu_vram.c b/drivers/gpu/drm/virtio= /virtgpu_vram.c index 25df81c027837c248a746e41856b5aa7e216b8d5..8a0577c2170ec9c12cad12be57f= 9a41c14f04660 100644 --- a/drivers/gpu/drm/virtio/virtgpu_vram.c +++ b/drivers/gpu/drm/virtio/virtgpu_vram.c @@ -138,6 +138,12 @@ bool virtio_gpu_is_vram(struct virtio_gpu_object *bo) return bo->base.base.funcs =3D=3D &virtio_gpu_vram_funcs; } =20 +#if defined(__powerpc64__) || defined(__aarch64__) || defined(__mips__) ||= defined(__loongarch__) +#define MAX_PAGE_SIZE 65536 +#else +#define MAX_PAGE_SIZE PAGE_SIZE +#endif + static int virtio_gpu_vram_map(struct virtio_gpu_object *bo) { int ret; @@ -150,8 +156,8 @@ static int virtio_gpu_vram_map(struct virtio_gpu_object= *bo) return -EINVAL; =20 spin_lock(&vgdev->host_visible_lock); - ret =3D drm_mm_insert_node(&vgdev->host_visible_mm, &vram->vram_node, - bo->base.base.size); + ret =3D drm_mm_insert_node_generic(&vgdev->host_visible_mm, &vram->vram_n= ode, + bo->base.base.size, MAX_PAGE_SIZE, 0, 0); spin_unlock(&vgdev->host_visible_lock); =20 if (ret) --- base-commit: 643e2e259c2b25a2af0ae4c23c6e16586d9fd19c change-id: 20250109-virtgpu-mixed-page-size-282b8f4a02fc --=20 Sasha Finkelstein