From nobody Sun Feb 8 02:30:11 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 E6FE3187849; Thu, 9 Jan 2025 22:07:52 +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=1736460473; cv=none; b=Bcz1umdS+jIhfZPOquzVnxnGGu2DOsXgTQ6kMHp902VE+T0RCE+ziuHcMBIx+0rk/S7J5EVD2iW7GxWJ73S8QU2F+HLBtSPiiK0TD6E+SXiSGA/lkZtbnDVwqOlIuhg7vitE8YixE/9l0UwJ5I+fDGMkOKtEo/ihCSs98kGKmhM= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1736460473; c=relaxed/simple; bh=fSeuNwGv1wlH+8DYv8Ob9vL289mkjYFU7A5gb+aJhbs=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:To:Cc; b=SIzXZkF1DQb06r4Wo+LiGflxWxEdi6tziLbh2xqSSLotxwvwA4/Gg3tBRjfo9/ojirVOQoksECbgtPxK/0eTJmdNGPxVJ9mAnvPvLRCZUyK5pMET/JXSuQ0vc3//ZrIrjY7gSkAx9yxSwiLAy7bjVSCFok+gSH0SFsGgUUGgkxU= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=ErAQqZdE; 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="ErAQqZdE" Received: by smtp.kernel.org (Postfix) with ESMTPS id 7B26BC4CED2; Thu, 9 Jan 2025 22:07:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1736460472; bh=fSeuNwGv1wlH+8DYv8Ob9vL289mkjYFU7A5gb+aJhbs=; h=From:Date:Subject:To:Cc:Reply-To:From; b=ErAQqZdEGoSaMt735IbM0OLP5qNIJdz7arEby59R1W17jsKdsc6NEdRlS7ZnCyHh0 jcDgl78o8lem3hT+PBCw5IRVXXtBLy4XN71cTcdYjR1GoATq+DIVu+9sQOiv6TL+Qu FQtwjIR+1IAqPazJAHQcdNcfpwIvbIUCHMBEZV8COrTxeiBg/SZPDu3BSQNbILw506 lFSxm3uBKXZmJym6DtNCzOsfXN4sOqPjevT87Uk4MsVqziv/1U89dUm9IgiYyUjqTQ 0hlEBk2THN3ZyyWIz8kwpCRYOfvYabUjyxSCt5AisJ6qrY37xGvWa2e+XoZiFRnTZf I3o/yswlclkPA== 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 69B04E7719A; Thu, 9 Jan 2025 22:07:52 +0000 (UTC) From: Sasha Finkelstein via B4 Relay Date: Thu, 09 Jan 2025 23:07:51 +0100 Subject: [PATCH] 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: <20250109-virtgpu-mixed-page-size-v1-1-c8fe1e1859f3@gmail.com> X-B4-Tracking: v=1; b=H4sIALZIgGcC/xWMQQ5AMBAAvyJ7tkltSPAVcSi27AFNSyPE363jJ DPzQOQgHKHNHgicJMq+KRR5BuNit5lRJmUgQ5UpTINJwjH7E1e5eEJv1YhyM1JNQ+1Ka8iNoLU P7FT5z13/vh/0keKGaQAAAA== X-Change-ID: 20250109-virtgpu-mixed-page-size-282b8f4a02fc 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=1736460471; l=1517; i=fnkl.kernel@gmail.com; s=20241124; h=from:subject:message-id; bh=lIIbgfeZ3OArzbnTe9ftPQjp52A5SwWq2Us6yyQ7tQ0=; b=GRQcjPla8yqP6JTh2Z3QypfIo8fRlvmdI6WroBA0UzI9AhZMUTpbwOaw9hNIUDcWLGZG+FP0F m5oIlszkSqaDOhv+fa55vMcxXApmSENNLbgryQUg7vvN+LnGTqHqaue 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