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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 334AEC433F5 for ; Wed, 16 Mar 2022 11:41:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1355400AbiCPLmx (ORCPT ); Wed, 16 Mar 2022 07:42:53 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:39930 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1355386AbiCPLmu (ORCPT ); Wed, 16 Mar 2022 07:42:50 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id D85A346179 for ; Wed, 16 Mar 2022 04:41:36 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 66A56616BD for ; Wed, 16 Mar 2022 11:41:36 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id DE4A2C340EC; Wed, 16 Mar 2022 11:41:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1647430895; bh=SiqnoWJ+RTXYiOm9OPw9loTSyWFf3JblJDHAXZJ7mb0=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Kab3zzf8u3mysnQTp7rPlr2B17VfGNtP54W2j93TE03K6S+TIjikiJekwkvzdE/ri 6NM8g2DImYk4Fnogw5we4Mv3OxNBsGe3YG2tBOPlGMoc+jpNPk+uyXepLCphhgsKZX I3RNbg6viVixoN/JIxbfXyONTCgOSIFwJiI3e/BffRq1e1P1B04Rt+cjY6byZPTy7U lH89R2lAsujes6WK+ay2P/2tP8OW50S0UEVabROlrhRjVNDOpJjvLEGaSoR/olosMn lxVaAHTq67ngz7Fl7Uk+lo/vof/TPJ46v390TBJEnhQ68y3+lkBWPEMVc0lzrX/Vis VIHFHN6FMYprw== From: Oded Gabbay To: linux-kernel@vger.kernel.org Cc: Ohad Sharabi Subject: [PATCH 02/11] habanalabs: add DRAM default page size to HW info Date: Wed, 16 Mar 2022 13:41:20 +0200 Message-Id: <20220316114129.2520107-2-ogabbay@kernel.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220316114129.2520107-1-ogabbay@kernel.org> References: <20220316114129.2520107-1-ogabbay@kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Ohad Sharabi When using the device memory allocation API the user ought to know what is the default allocation page size. Signed-off-by: Ohad Sharabi Reviewed-by: Oded Gabbay Signed-off-by: Oded Gabbay --- drivers/misc/habanalabs/common/habanalabs_ioctl.c | 1 + include/uapi/misc/habanalabs.h | 3 +++ 2 files changed, 4 insertions(+) diff --git a/drivers/misc/habanalabs/common/habanalabs_ioctl.c b/drivers/misc/habanalabs/common/habanalabs_ioctl.c index c13a3c2a7013..14c58579b9cd 100644 --- a/drivers/misc/habanalabs/common/habanalabs_ioctl.c +++ b/drivers/misc/habanalabs/common/habanalabs_ioctl.c @@ -76,6 +76,7 @@ static int hw_ip_info(struct hl_device *hdev, struct hl_info_args *args) if (hw_ip.dram_size > PAGE_SIZE) hw_ip.dram_enabled = 1; hw_ip.dram_page_size = prop->dram_page_size; + hw_ip.device_mem_alloc_default_page_size = prop->device_mem_alloc_default_page_size; hw_ip.num_of_events = prop->num_of_events; memcpy(hw_ip.cpucp_version, prop->cpucp_info.cpucp_version, diff --git a/include/uapi/misc/habanalabs.h b/include/uapi/misc/habanalabs.h index 1d6b4f0c4159..ae2441521467 100644 --- a/include/uapi/misc/habanalabs.h +++ b/include/uapi/misc/habanalabs.h @@ -409,6 +409,7 @@ enum hl_server_type { * @dram_page_size: The DRAM physical page size. * @number_of_user_interrupts: The number of interrupts that are available to the userspace * application to use. Relevant for Gaudi2 and later. + * @device_mem_alloc_default_page_size: default page size used in device memory allocation. */ struct hl_info_hw_ip_info { __u64 sram_base_address; @@ -436,6 +437,8 @@ struct hl_info_hw_ip_info { __u32 reserved3; __u16 number_of_user_interrupts; __u16 pad2; + __u64 reserved4; + __u64 device_mem_alloc_default_page_size; }; struct hl_info_dram_usage { -- 2.25.1