From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 209C1F45A18 for ; Sat, 11 Apr 2026 00:48:18 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id B2D3610E167; Sat, 11 Apr 2026 00:48:17 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="fZ5VM4cb"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.11]) by gabe.freedesktop.org (Postfix) with ESMTPS id B8AE710E0F0 for ; Sat, 11 Apr 2026 00:48:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1775868497; x=1807404497; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=D/zgJ0P+D75FC33jelfvVTy8gXZcwrG5ZaYqdcKr41k=; b=fZ5VM4cbZoDzzzK8IUI8XGRMSJ9lpZUQRpmzjwZXsHMYzlkpI6r3tzxG 63vLEuNR/KTZKzNjA9Cl2dy4QnaqNIfg1kJsMmk/7HNh8z9oTHzWnxU34 mx1uLulE+jRdR0y9b3SATLKi5+IaZXZ7xmclFJoI26qLyhaZFAR6p1i2w hO+0jMnP+KD3BDMJ4cZByTgh+zWfPowCYfa4QP0RFzlmXiOioJ33tAJne uK54wBbcTbbABcH8p9VLOTOSewmEgL8Wu67WjhBPyrqnmWMpurZZ4M8gE 6oTBW4rCn9ULrAqZqW6yu21wvtN3KzXxCavEowqKWIKw3pX51QqnMz+Y7 g==; X-CSE-ConnectionGUID: 41huQSIGSc2SeKS5mB3M1g== X-CSE-MsgGUID: 7qdCNffGQb2wZPDJI5oV9Q== X-IronPort-AV: E=McAfee;i="6800,10657,11755"; a="87522102" X-IronPort-AV: E=Sophos;i="6.23,172,1770624000"; d="scan'208";a="87522102" Received: from fmviesa007.fm.intel.com ([10.60.135.147]) by fmvoesa105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Apr 2026 17:48:17 -0700 X-CSE-ConnectionGUID: T+nU7cZxRfiB32IjhAmowg== X-CSE-MsgGUID: qB6V2hU7QdGSj6q+FL3zog== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,172,1770624000"; d="scan'208";a="226079393" Received: from orsosgc001.jf.intel.com ([10.88.27.185]) by fmviesa007-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 10 Apr 2026 17:48:16 -0700 From: Ashutosh Dixit To: intel-xe@lists.freedesktop.org Cc: Umesh Nerlige Ramappa Subject: [PATCH 2/3] drm/xe/oa: Use drm_gem_mmap_obj for OA buffer mmap Date: Fri, 10 Apr 2026 17:48:08 -0700 Message-ID: <20260411004809.570098-3-ashutosh.dixit@intel.com> X-Mailer: git-send-email 2.48.1 In-Reply-To: <20260411004809.570098-1-ashutosh.dixit@intel.com> References: <20260411004809.570098-1-ashutosh.dixit@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: intel-xe@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel Xe graphics driver List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-xe-bounces@lists.freedesktop.org Sender: "Intel-xe" OA buffer mmap can currently only mmap OA buffer in system memory. CRI MERTOA buffer can be located in device memory. Switch OA buffer mmap to using drm_gem_mmap_obj, which can handle mmap's of both system and device memory buffers. Signed-off-by: Ashutosh Dixit Reviewed-by: Umesh Nerlige Ramappa --- drivers/gpu/drm/xe/xe_oa.c | 19 +++---------------- 1 file changed, 3 insertions(+), 16 deletions(-) diff --git a/drivers/gpu/drm/xe/xe_oa.c b/drivers/gpu/drm/xe/xe_oa.c index d25beb6ac6040..7ada6e2a0d955 100644 --- a/drivers/gpu/drm/xe/xe_oa.c +++ b/drivers/gpu/drm/xe/xe_oa.c @@ -9,6 +9,7 @@ #include #include +#include #include #include #include @@ -892,8 +893,6 @@ static int xe_oa_alloc_oa_buffer(struct xe_oa_stream *stream, size_t size) return PTR_ERR(bo); stream->oa_buffer.bo = bo; - /* mmap implementation requires OA buffer to be in system memory */ - xe_assert(stream->oa->xe, bo->vmap.is_iomem == 0); return 0; } @@ -1675,8 +1674,6 @@ static int xe_oa_mmap(struct file *file, struct vm_area_struct *vma) { struct xe_oa_stream *stream = file->private_data; struct xe_bo *bo = stream->oa_buffer.bo; - unsigned long start = vma->vm_start; - int i, ret; if (xe_observation_paranoid && !perfmon_capable()) { drm_dbg(&stream->oa->xe->drm, "Insufficient privilege to map OA buffer\n"); @@ -1684,7 +1681,7 @@ static int xe_oa_mmap(struct file *file, struct vm_area_struct *vma) } /* Can mmap the entire OA buffer or nothing (no partial OA buffer mmaps) */ - if (vma->vm_end - vma->vm_start != xe_bo_size(stream->oa_buffer.bo)) { + if (vma->vm_end - vma->vm_start != xe_bo_size(bo)) { drm_dbg(&stream->oa->xe->drm, "Wrong mmap size, must be OA buffer size\n"); return -EINVAL; } @@ -1700,17 +1697,7 @@ static int xe_oa_mmap(struct file *file, struct vm_area_struct *vma) vm_flags_mod(vma, VM_PFNMAP | VM_DONTEXPAND | VM_DONTDUMP | VM_DONTCOPY, VM_MAYWRITE | VM_MAYEXEC); - xe_assert(stream->oa->xe, bo->ttm.ttm->num_pages == vma_pages(vma)); - for (i = 0; i < bo->ttm.ttm->num_pages; i++) { - ret = remap_pfn_range(vma, start, page_to_pfn(bo->ttm.ttm->pages[i]), - PAGE_SIZE, vma->vm_page_prot); - if (ret) - break; - - start += PAGE_SIZE; - } - - return ret; + return drm_gem_mmap_obj(&bo->ttm.base, xe_bo_size(bo), vma); } static const struct file_operations xe_oa_fops = { -- 2.48.1