From patchwork Wed Oct 7 16:44:16 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Daniel Vetter X-Patchwork-Id: 11821075 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id CE5E51592 for ; Wed, 7 Oct 2020 16:44:41 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id A54AD21775 for ; Wed, 7 Oct 2020 16:44:41 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=ffwll.ch header.i=@ffwll.ch header.b="GwLaASBB" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728046AbgJGQol (ORCPT ); Wed, 7 Oct 2020 12:44:41 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:52696 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728022AbgJGQoj (ORCPT ); Wed, 7 Oct 2020 12:44:39 -0400 Received: from mail-wm1-x344.google.com (mail-wm1-x344.google.com [IPv6:2a00:1450:4864:20::344]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 7EDCEC0613E1 for ; Wed, 7 Oct 2020 09:44:38 -0700 (PDT) Received: by mail-wm1-x344.google.com with SMTP id p15so3041724wmi.4 for ; Wed, 07 Oct 2020 09:44:38 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ffwll.ch; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=fbQ4UHoMI3gmmgUudGaz4yL7TM4S3Iddi1GT7Ee/+0U=; b=GwLaASBB1efTh6MPYPZRJ8sRahCLRvTt+3ohcP4zw6YZTX22OiwAXRVD6PAfYgfgqP MCyytYGELOTCoMpkehTDRE8nAbzQtjgDaBnw+1Ojb8/wCoU+VYASX13tI1VU/7VWuEaC 0AeT2tPwf+0OAmbFt5CWbHSjCY7HVIdMBTY9A= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=fbQ4UHoMI3gmmgUudGaz4yL7TM4S3Iddi1GT7Ee/+0U=; b=rZ/8fS1j9NFucZNiQAveDZPcCqZEwozpZjWlftKMW1Q0YHjz87/gDV1MwkI6IXPGes WoEaiN1Kbj2PcJ2UhU8xgUyebMvLhbNIx1zmVHAUGPYxgf8jx6inOqeDw5ecdYlRt704 f1T2z3w99pofbBmNE+PMo7GCgQBdptdNeF1PZudqO8H46PZYFQfwE0nyQlw+sT6689cB 3Lk4oN6k+c3qV3AkSx1eEK9+fGHC1HZg8DyMQJS7f6WEvBnyZkxvMSHnQtsK52whQB7N RUUc1DD6IlVZEHf2uPHSHgPY8y0q2YIWXblNxPXztSg0J4iBMoVTU7aDJdqrY6eaNlWn Go7A== X-Gm-Message-State: AOAM530NAOOPnKMl0idaRknYiZNpWKwqN93kneiZGiwdaKEZSIIUakGB i6GxtYDVHOBlDEbc5ZkCHPj1oA== X-Google-Smtp-Source: ABdhPJwEu4LC2Cz1K2rgxVwQrYuYinT+uwWru1r5SWZOb1CzlJ/0rEY8IUuIAasACAWLOr06TRZTNA== X-Received: by 2002:a1c:1983:: with SMTP id 125mr4134376wmz.29.1602089077113; Wed, 07 Oct 2020 09:44:37 -0700 (PDT) Received: from phenom.ffwll.local ([2a02:168:57f4:0:efd0:b9e5:5ae6:c2fa]) by smtp.gmail.com with ESMTPSA id z191sm3332280wme.40.2020.10.07.09.44.35 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 07 Oct 2020 09:44:36 -0700 (PDT) From: Daniel Vetter To: DRI Development , LKML Cc: kvm@vger.kernel.org, linux-mm@kvack.org, linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-media@vger.kernel.org, linux-s390@vger.kernel.org, Daniel Vetter , Daniel Vetter , Jason Gunthorpe , Andrew Morton , John Hubbard , =?utf-8?b?SsOpcsO0bWUgR2xpc3Nl?= , Jan Kara , Dan Williams , Oded Gabbay , Omer Shpigelman , Ofir Bitton , Tomer Tayar , Moti Haimovski , Greg Kroah-Hartman , Pawel Piskorski Subject: [PATCH 03/13] misc/habana: Stop using frame_vector helpers Date: Wed, 7 Oct 2020 18:44:16 +0200 Message-Id: <20201007164426.1812530-4-daniel.vetter@ffwll.ch> X-Mailer: git-send-email 2.28.0 In-Reply-To: <20201007164426.1812530-1-daniel.vetter@ffwll.ch> References: <20201007164426.1812530-1-daniel.vetter@ffwll.ch> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org All we need are a pages array, pin_user_pages_fast can give us that directly. Plus this avoids the entire raw pfn side of get_vaddr_frames. Signed-off-by: Daniel Vetter Cc: Jason Gunthorpe Cc: Andrew Morton Cc: John Hubbard Cc: Jérôme Glisse Cc: Jan Kara Cc: Dan Williams Cc: linux-mm@kvack.org Cc: linux-arm-kernel@lists.infradead.org Cc: linux-samsung-soc@vger.kernel.org Cc: linux-media@vger.kernel.org Cc: Oded Gabbay Cc: Omer Shpigelman Cc: Ofir Bitton Cc: Tomer Tayar Cc: Moti Haimovski Cc: Daniel Vetter Cc: Greg Kroah-Hartman Cc: Pawel Piskorski --- drivers/misc/habanalabs/Kconfig | 1 - drivers/misc/habanalabs/common/habanalabs.h | 3 +- drivers/misc/habanalabs/common/memory.c | 51 +++++++++------------ 3 files changed, 23 insertions(+), 32 deletions(-) diff --git a/drivers/misc/habanalabs/Kconfig b/drivers/misc/habanalabs/Kconfig index 8eb5d38c618e..2f04187f7167 100644 --- a/drivers/misc/habanalabs/Kconfig +++ b/drivers/misc/habanalabs/Kconfig @@ -6,7 +6,6 @@ config HABANA_AI tristate "HabanaAI accelerators (habanalabs)" depends on PCI && HAS_IOMEM - select FRAME_VECTOR select DMA_SHARED_BUFFER select GENERIC_ALLOCATOR select HWMON diff --git a/drivers/misc/habanalabs/common/habanalabs.h b/drivers/misc/habanalabs/common/habanalabs.h index edbd627b29d2..c1b3ad613b15 100644 --- a/drivers/misc/habanalabs/common/habanalabs.h +++ b/drivers/misc/habanalabs/common/habanalabs.h @@ -881,7 +881,8 @@ struct hl_ctx_mgr { struct hl_userptr { enum vm_type_t vm_type; /* must be first */ struct list_head job_node; - struct frame_vector *vec; + struct page **pages; + unsigned int npages; struct sg_table *sgt; enum dma_data_direction dir; struct list_head debugfs_list; diff --git a/drivers/misc/habanalabs/common/memory.c b/drivers/misc/habanalabs/common/memory.c index 5ff4688683fd..ef89cfa2f95a 100644 --- a/drivers/misc/habanalabs/common/memory.c +++ b/drivers/misc/habanalabs/common/memory.c @@ -1281,45 +1281,41 @@ static int get_user_memory(struct hl_device *hdev, u64 addr, u64 size, return -EFAULT; } - userptr->vec = frame_vector_create(npages); - if (!userptr->vec) { + userptr->pages = kvmalloc_array(npages, sizeof(*userptr->pages), + GFP_KERNEL); + if (!userptr->pages) { dev_err(hdev->dev, "Failed to create frame vector\n"); return -ENOMEM; } - rc = get_vaddr_frames(start, npages, FOLL_FORCE | FOLL_WRITE, - userptr->vec); + rc = pin_user_pages_fast(start, npages, FOLL_FORCE | FOLL_WRITE, + userptr->pages); if (rc != npages) { dev_err(hdev->dev, "Failed to map host memory, user ptr probably wrong\n"); if (rc < 0) - goto destroy_framevec; + goto destroy_pages; + npages = rc; rc = -EFAULT; - goto put_framevec; - } - - if (frame_vector_to_pages(userptr->vec) < 0) { - dev_err(hdev->dev, - "Failed to translate frame vector to pages\n"); - rc = -EFAULT; - goto put_framevec; + goto put_pages; } + userptr->npages = npages; rc = sg_alloc_table_from_pages(userptr->sgt, - frame_vector_pages(userptr->vec), - npages, offset, size, GFP_ATOMIC); + userptr->pages, + npages, offset, size, GFP_ATOMIC); if (rc < 0) { dev_err(hdev->dev, "failed to create SG table from pages\n"); - goto put_framevec; + goto put_pages; } return 0; -put_framevec: - put_vaddr_frames(userptr->vec); -destroy_framevec: - frame_vector_destroy(userptr->vec); +put_pages: + unpin_user_pages(userptr->pages, npages); +destroy_pages: + kvfree(userptr->pages); return rc; } @@ -1405,7 +1401,7 @@ int hl_pin_host_memory(struct hl_device *hdev, u64 addr, u64 size, */ void hl_unpin_host_memory(struct hl_device *hdev, struct hl_userptr *userptr) { - struct page **pages; + int i; hl_debugfs_remove_userptr(hdev, userptr); @@ -1414,15 +1410,10 @@ void hl_unpin_host_memory(struct hl_device *hdev, struct hl_userptr *userptr) userptr->sgt->nents, userptr->dir); - pages = frame_vector_pages(userptr->vec); - if (!IS_ERR(pages)) { - int i; - - for (i = 0; i < frame_vector_count(userptr->vec); i++) - set_page_dirty_lock(pages[i]); - } - put_vaddr_frames(userptr->vec); - frame_vector_destroy(userptr->vec); + for (i = 0; i < userptr->npages; i++) + set_page_dirty_lock(userptr->pages[i]); + unpin_user_pages(userptr->pages, userptr->npages); + kvfree(userptr->pages); list_del(&userptr->job_node);