From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx0b-0031df01.pphosted.com (mx0b-0031df01.pphosted.com [205.220.180.131]) (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 454A73624C2 for ; Thu, 16 Jul 2026 20:15:57 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=205.220.180.131 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784232965; cv=none; b=gzlDLJKym07tFQ8xj7SQ4sSJ9K1rmrTAiYxFjH0PcMWdY8MUitK+kfVpQu0O3Z6G/vkjCZ2OU7jOeqQrvQG3b5G6MR3mC4qJ5P4xbwCzii8ChZWumtOhJD5EC4cZSIV4bUSUJaKp9MNHg9hkLEqR2tv6Tl7WH8m8OClsXmNJugc= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1784232965; c=relaxed/simple; bh=GxZFku0kvsa3uEnAi/89TufUaclwCvO3NT6bp6hwH68=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=DTQY5mVGOSBLm5EfQCFQ8VcdpuiBqYiYqo24RexMHg3b14T9WwEGrgnxw/Em7veKHXNyAjBJJvVQSD/AaWiAHfwkT7SyEwD6clxkZZugtSoLgazNx+2oQShJtDg0brdOFPEEEmD9sXwHgFIj8AmL3NMnwDZcYkWIVyh/xSjpPnQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com; spf=pass smtp.mailfrom=oss.qualcomm.com; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b=RwvSF+AQ; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b=ENBiS9r3; arc=none smtp.client-ip=205.220.180.131 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=oss.qualcomm.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=qualcomm.com header.i=@qualcomm.com header.b="RwvSF+AQ"; dkim=pass (2048-bit key) header.d=oss.qualcomm.com header.i=@oss.qualcomm.com header.b="ENBiS9r3" Received: from pps.filterd (m0279868.ppops.net [127.0.0.1]) by mx0a-0031df01.pphosted.com (8.18.1.11/8.18.1.11) with ESMTP id 66GJoPre3753245 for ; Thu, 16 Jul 2026 20:15:56 GMT DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qualcomm.com; h= cc:content-transfer-encoding:date:from:in-reply-to:message-id :mime-version:references:subject:to; s=qcppdkim1; bh=6DIg0hlu8qf HUQoWpRSk0/2wgFEbxEIf2WTCugbqRdk=; b=RwvSF+AQrKvSjJMlwzuq0TyzPaC fLAEpCdxm5RjFcXJOC49mgFKwn4mKpg9ya0CAyaLVvxHGwJpMFhr/mCSdCwOk/iZ k0Kz99/5S35bWorzqoAKq7cz8HZCZ/eL3E5amrXxGGsnNWSIIv11hVq9V4J0mKki NXBx/ajdOCryOyU6XwzKvh0sFx5DCzvLzaBLt/YUzRHjn/BalAYdqC5j3xRU+tlN QbTB3mIikMdwZ44xPubvA8vWBFyOvZnlHBEfzBfjyFagbZDx3915p4G3Vg3b3rNk tgGIToqrhP2RqVu9fDMGrpNQyrhkZhEToOLddD76P+5q0Uhvc2oejKDbBsw== Received: from mail-pl1-f198.google.com (mail-pl1-f198.google.com [209.85.214.198]) by mx0a-0031df01.pphosted.com (PPS) with ESMTPS id 4feuex35nj-1 (version=TLSv1.3 cipher=TLS_AES_128_GCM_SHA256 bits=128 verify=NOT) for ; Thu, 16 Jul 2026 20:15:56 +0000 (GMT) Received: by mail-pl1-f198.google.com with SMTP id d9443c01a7336-2cce02cb769so46832065ad.1 for ; Thu, 16 Jul 2026 13:15:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=oss.qualcomm.com; s=google; t=1784232956; x=1784837756; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to:content-type; bh=6DIg0hlu8qfHUQoWpRSk0/2wgFEbxEIf2WTCugbqRdk=; b=ENBiS9r3B+djCDUYyxXBuwxDUXmFt/su/TQtRNJVt6Y58QKxGNWMV4xtFpZ/RhI5tU OiOFHevi3Iv8dAa0Z3tDAtXbDPDAYWHqN/zmXtqOqSRmO8J3iQzwdIyLfomNsUMey77h sAbd0cqBFXl3OZj6YplhSzig1S8BzLU7aTUJT5I+JjLvvKgL5AH3AE2KJBCsS3RpP4lq B+/94FEy6k228+9ljLAf45ZJcX4U7f2OlCa380EmIyRkyf5df92QL0Ab8FccT7LTOCGF M9OSpbITjrtY7fhDmU8zZTNQJR5z2gmrQqLplrTFGi8xUVu4HgUczlo9/9xTbztAYKH3 O6bA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1784232956; x=1784837756; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-gg:x-gm-message-state:from :to:cc:subject:date:message-id:reply-to:content-type; bh=6DIg0hlu8qfHUQoWpRSk0/2wgFEbxEIf2WTCugbqRdk=; b=VsfpHG1SnhHnnwJrLOMnB37Mni3smVbhVH0GtSRxANuMTM/7xd7dkslwoAqRK4bgo9 QZQEr1wxYQDZW/uHMr/lI3dWy8NbcN9iMMadd8auS6i+x8f+eq8pVaO4wvMeh8+uD9/Z 1Fqjkv1q3SAw3kLNZKflmHUrPKZlfqE/Blvk48DfBHdTQOTjhZRs0eMjSJmUW2cAeXmB lMH0ehTzrzM+b+fk7XVwivgGdozLxvsFJTF+CQkU67L6LML6xiLKkydvKGLamN/klni2 tqWU5Vg52qrQ+hvsSIGqvw3NX5uJZJjLI6SogpN7vtFpyISnL2qrdov0TLiiRpp2NgTL IoGQ== X-Forwarded-Encrypted: i=1; AHgh+RoLBiD3LB3Cwgk+6kxVMayiVdufNAx61lF3D4NgqR8Kx+uSG0x0kJc3S8+9SlQ8uIK1Nq8McepdEgygiCo=@vger.kernel.org X-Gm-Message-State: AOJu0YzVV73rd1wo9HWQQ0teEKP9jdiKnwnaMu8nQ9raiXT/RNlbdBfI FYKyAwibNGr//mTjCkazFrrN19EoA8S8WLwWGpure4I0oVck0AlWf9ggHhO7w2OdPnK28aoadfb 04lPIfYoNES9ioiSnB7IfBcjjoRbF7OiD9NL9z7h4xhhWgx8I01aJI/AFDuC8IRGS/oQ= X-Gm-Gg: AfdE7ckwse5++7IcnxUgp8BR1Tp5C6Nmi26iR5n+Xsv6jqLSQNi6NYLKeX+Vh1wEPOO cwsjtuST+8ANsy/gDtXFxYfjgpCgaIF8Hzx0xI55jvI963hAH0vthLBGUCChz8k8MsLkl6JdN1y /VbKVN9X74R08J+iERz8NUeklMGkcHq2sPa9XVFrd9+gAYmmUTpRTcK9TMWjxJyLNK6n7rbtEJh rg5Qwno9JKqtDb4xHzalEWpmc8Q6rxi5pa17Y1CHKylvySjpMmvMCUVhWNSIvHdFJUwqZH3djan UWAbKSaRuE7h6PX9bdBHDhnlLQX9TDllu8FnoOF804P6eRtWvsRTUy3q3MG4CuDk1qPZ+ZCsrtL zmSAXWrfEAKhGiab9y5fcGKYuGn1GtRNcFyWd96qdAhn1mOQ= X-Received: by 2002:a17:903:1210:b0:2c9:c517:d078 with SMTP id d9443c01a7336-2cf2ec54ea4mr9006335ad.36.1784232955671; Thu, 16 Jul 2026 13:15:55 -0700 (PDT) X-Received: by 2002:a17:903:1210:b0:2c9:c517:d078 with SMTP id d9443c01a7336-2cf2ec54ea4mr9006155ad.36.1784232955241; Thu, 16 Jul 2026 13:15:55 -0700 (PDT) Received: from localhost (c-73-37-105-206.hsd1.or.comcast.net. [73.37.105.206]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-2cf1055cde6sm25822265ad.52.2026.07.16.13.15.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 16 Jul 2026 13:15:54 -0700 (PDT) From: Rob Clark To: dri-devel@lists.freedesktop.org Cc: linux-arm-msm@vger.kernel.org, freedreno@lists.freedesktop.org, Rob Clark , Sean Paul , Konrad Dybcio , Akhil P Oommen , Dmitry Baryshkov , Abhinav Kumar , Jessica Zhang , Marijn Suijten , David Airlie , Simona Vetter , linux-kernel@vger.kernel.org (open list) Subject: [PATCH v5 05/10] drm/msm: Add helper to check for per-process pgtables VM Date: Thu, 16 Jul 2026 13:15:28 -0700 Message-ID: <20260716201538.365824-6-robin.clark@oss.qualcomm.com> X-Mailer: git-send-email 2.55.0 In-Reply-To: <20260716201538.365824-1-robin.clark@oss.qualcomm.com> References: <20260716201538.365824-1-robin.clark@oss.qualcomm.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Authority-Analysis: v=2.4 cv=JeeMa0KV c=1 sm=1 tr=0 ts=6a593bfc cx=c_pps a=MTSHoo12Qbhz2p7MsH1ifg==:117 a=19Wyn7e3V/0aNffMjNCMQw==:17 a=RAioF0-LDSMA:10 a=s4-Qcg_JpJYA:10 a=VkNPw1HP01LnGYTKEx00:22 a=u7WPNUs3qKkmUXheDGA7:22 a=ZpdpYltYx_vBUK5n70dp:22 a=EUspDBNiAAAA:8 a=4aDCzPfTH0uMOhJcsooA:9 a=GvdueXVYPmCkWapjIL-Q:22 X-Proofpoint-ORIG-GUID: uVODf-LVGMHfrZGhoHZeE0TK0bIsPMAa X-Proofpoint-GUID: uVODf-LVGMHfrZGhoHZeE0TK0bIsPMAa X-Proofpoint-Spam-Info: AW1haW4tMjYwNzE2MDIwNiBTYWx0ZWRfXx4OORi4fhpGv 43QOHV892FTm4DhW+UeRrKMU392yNLHPdUnB8QuZ3FO30Pd6z6o+NBqeJ6GIJTEnv8HF7B8guhI /1xnu4NbWfkDdoGMi2fWJw6SxwhHIQg= X-Proofpoint-Spam-Details-Enc: AW1haW4tMjYwNzE2MDIwNiBTYWx0ZWRfX41U4gIa/kaGs AAnZjcSSkNmkXiq69cdOM23Kn+q6HMDsDBKXg1DO+zLeSdWHl4uux03607kjBRGMvcxL6yNirtY sVIKArWcVE7JQvuPZciv/kCsEqzxrTvYLoxD78c4WMdFvouQ9YouToBS3THrxVWUyh62SRJC8G4 1YQiXbv0wyFgmUrwgEcub/Nh/sG6fbFFFt0mlroFn4CN2rJS8RReSBsjRnwDNBy28Knw+htMqil e1X0z60wY2Tt9Nq+BcfKx/EjhpZnWMggcUYkIrd03QdO+9P1v1wmaE4mdan2wG3Xago8x8fhqyl X+JbFHtmBv1knwynmLLesKJ3lLRtfZ0mxMgsWcKQLr5qeKYFN03pl/NQMcUe4a9d/ICnmrpeTAO yxGj6Yr6UvyPqv3Y8fZHcpYlXJ+xfncSnPeaqpYMWYK0RoDjz0ixRHhG1hhCCwNsJTmyC3U9Zbg Z01wCjkPSZ4ozC74Bvw== X-Proofpoint-Virus-Version: vendor=baseguard engine=ICAP:2.0.293,Aquarius:18.0.1143,Hydra:6.1.134,FMLib:17.12.100.49 definitions=2026-07-16_07,2026-07-15_02,2025-10-01_01 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 spamscore=0 adultscore=0 clxscore=1015 suspectscore=0 lowpriorityscore=0 priorityscore=1501 impostorscore=0 phishscore=0 malwarescore=0 bulkscore=0 classifier=typeunknown authscore=0 authtc= authcc= route=outbound adjust=0 reason=mlx scancount=1 engine=8.22.0-2606150000 definitions=main-2607160206 This will simplify a following commit to allow lazy VM creation to fail. Signed-off-by: Rob Clark --- drivers/gpu/drm/msm/adreno/adreno_gpu.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/msm/adreno/adreno_gpu.c b/drivers/gpu/drm/msm/adreno/adreno_gpu.c index 0d54141ff089..5738eac9aebd 100644 --- a/drivers/gpu/drm/msm/adreno/adreno_gpu.c +++ b/drivers/gpu/drm/msm/adreno/adreno_gpu.c @@ -356,6 +356,12 @@ int adreno_fault_handler(struct msm_gpu *gpu, unsigned long iova, int flags, return 0; } +static bool +valid_per_process_vm(struct msm_gpu *gpu, struct drm_gpuvm *vm) +{ + return (vm != gpu->vm); +} + int adreno_get_param(struct msm_gpu *gpu, struct msm_context *ctx, uint32_t param, uint64_t *value, uint32_t *len) { @@ -414,12 +420,12 @@ int adreno_get_param(struct msm_gpu *gpu, struct msm_context *ctx, *value = gpu->suspend_count; return 0; case MSM_PARAM_VA_START: - if (vm == gpu->vm) + if (!valid_per_process_vm(gpu, vm)) return UERR(EINVAL, drm, "requires per-process pgtables"); *value = vm->mm_start; return 0; case MSM_PARAM_VA_SIZE: - if (vm == gpu->vm) + if (!valid_per_process_vm(gpu, vm)) return UERR(EINVAL, drm, "requires per-process pgtables"); *value = vm->mm_range; return 0; -- 2.55.0