From patchwork Wed Jul 21 15:53:54 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 12391423 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-16.6 required=3.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 88230C636C9 for ; Wed, 21 Jul 2021 16:02:12 +0000 (UTC) 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 mail.kernel.org (Postfix) with ESMTPS id 58C4260D07 for ; Wed, 21 Jul 2021 16:02:12 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 58C4260D07 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=intel-gfx-bounces@lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E56D96E9B1; Wed, 21 Jul 2021 16:02:11 +0000 (UTC) Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by gabe.freedesktop.org (Postfix) with ESMTPS id 113B66E97A; Wed, 21 Jul 2021 16:02:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Content-Transfer-Encoding:MIME-Version: References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From:Sender:Reply-To: Content-Type:Content-ID:Content-Description; bh=lR5B78UR75Lds1tTglHXEvMg6ZX4tktWJPr2uN1g4xc=; b=UUoNsbmuTrTqJU8RJ+qHKmA/zW ihNxqmgIqe3yDhJdN1O/2RHRj1ey6Ikt4oeQznC5yV0ypO3OGAlEez8fXLLghyGcKxJAAc3OSSPkM m2/Hny83fKMEjzFA8orOurLqgtWDAxh4GQKNymiPr+JIElzVP/JPl5Rvki0KKPL1Nq3vvQray4faO yKQhgvBOfD1LOv0NJANfjUGf27VYQWnPm+rX781wcAW4RhQEJajHb7uE2rjQK2wc8OVJpHRnLNsL/ fikRqpSdyUz2FrsgXdAq7N4oIynCJBu5lR78uJ1Fy0bE0+iO0GfMJycGnzHDWGYHYskgt0xCQHC/2 61D6z1sA==; Received: from [2001:4bb8:193:7660:d6d5:72f4:23f7:1898] (helo=localhost) by casper.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1m6EfE-009Mkd-Oc; Wed, 21 Jul 2021 16:01:46 +0000 From: Christoph Hellwig To: Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Zhenyu Wang , Zhi Wang Date: Wed, 21 Jul 2021 17:53:54 +0200 Message-Id: <20210721155355.173183-21-hch@lst.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210721155355.173183-1-hch@lst.de> References: <20210721155355.173183-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html Subject: [Intel-gfx] [PATCH 20/21] drm/i915/gvt: devirtualize dma_pin_guest_page X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: intel-gfx@lists.freedesktop.org, intel-gvt-dev@lists.freedesktop.org, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Just call the function directly and remove a pointless wrapper. Signed-off-by: Christoph Hellwig --- drivers/gpu/drm/i915/gvt/dmabuf.c | 14 +------------- drivers/gpu/drm/i915/gvt/gvt.h | 1 + drivers/gpu/drm/i915/gvt/hypercall.h | 2 -- drivers/gpu/drm/i915/gvt/kvmgt.c | 4 +--- drivers/gpu/drm/i915/gvt/mpt.h | 15 --------------- 5 files changed, 3 insertions(+), 33 deletions(-) diff --git a/drivers/gpu/drm/i915/gvt/dmabuf.c b/drivers/gpu/drm/i915/gvt/dmabuf.c index 03d82f4f9aa2..eacfe7beaaf6 100644 --- a/drivers/gpu/drm/i915/gvt/dmabuf.c +++ b/drivers/gpu/drm/i915/gvt/dmabuf.c @@ -36,18 +36,6 @@ #define GEN8_DECODE_PTE(pte) (pte & GENMASK_ULL(63, 12)) -static int vgpu_pin_dma_address(struct intel_vgpu *vgpu, - unsigned long size, - dma_addr_t dma_addr) -{ - int ret = 0; - - if (intel_gvt_hypervisor_dma_pin_guest_page(vgpu, dma_addr)) - ret = -EINVAL; - - return ret; -} - static int vgpu_gem_get_pages( struct drm_i915_gem_object *obj) { @@ -83,7 +71,7 @@ static int vgpu_gem_get_pages( for_each_sg(st->sgl, sg, page_num, i) { dma_addr_t dma_addr = GEN8_DECODE_PTE(readq(>t_entries[i])); - if (vgpu_pin_dma_address(vgpu, PAGE_SIZE, dma_addr)) { + if (intel_gvt_dma_pin_guest_page(vgpu, dma_addr)) { ret = -EINVAL; goto out; } diff --git a/drivers/gpu/drm/i915/gvt/gvt.h b/drivers/gpu/drm/i915/gvt/gvt.h index 9d5a286e1269..a8fc381f558e 100644 --- a/drivers/gpu/drm/i915/gvt/gvt.h +++ b/drivers/gpu/drm/i915/gvt/gvt.h @@ -766,6 +766,7 @@ void intel_gvt_debugfs_clean(struct intel_gvt *gvt); int intel_gvt_page_track_add(struct intel_vgpu *info, u64 gfn); int intel_gvt_page_track_remove(struct intel_vgpu *info, u64 gfn); +int intel_gvt_dma_pin_guest_page(struct intel_vgpu *vgpu, dma_addr_t dma_addr); int intel_gvt_dma_map_guest_page(struct intel_vgpu *vgpu, unsigned long gfn, unsigned long size, dma_addr_t *dma_addr); void intel_gvt_dma_unmap_guest_page(struct intel_vgpu *vgpu, diff --git a/drivers/gpu/drm/i915/gvt/hypercall.h b/drivers/gpu/drm/i915/gvt/hypercall.h index ba03b3368a95..d49437aeabac 100644 --- a/drivers/gpu/drm/i915/gvt/hypercall.h +++ b/drivers/gpu/drm/i915/gvt/hypercall.h @@ -45,8 +45,6 @@ struct intel_vgpu; struct intel_gvt_mpt { int (*host_init)(struct device *dev, void *gvt); void (*host_exit)(struct device *dev, void *gvt); - - int (*dma_pin_guest_page)(struct intel_vgpu *vgpu, dma_addr_t dma_addr); }; #endif /* _GVT_HYPERCALL_H_ */ diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c index 8101c1485f12..5f10ed5eccde 100644 --- a/drivers/gpu/drm/i915/gvt/kvmgt.c +++ b/drivers/gpu/drm/i915/gvt/kvmgt.c @@ -1902,8 +1902,7 @@ int intel_gvt_dma_map_guest_page(struct intel_vgpu *vgpu, unsigned long gfn, return ret; } -static int kvmgt_dma_pin_guest_page(struct intel_vgpu *vgpu, - dma_addr_t dma_addr) +int intel_gvt_dma_pin_guest_page(struct intel_vgpu *vgpu, dma_addr_t dma_addr) { struct gvt_dma *entry; int ret = 0; @@ -1949,7 +1948,6 @@ void intel_gvt_dma_unmap_guest_page(struct intel_vgpu *vgpu, static const struct intel_gvt_mpt kvmgt_mpt = { .host_init = kvmgt_host_init, .host_exit = kvmgt_host_exit, - .dma_pin_guest_page = kvmgt_dma_pin_guest_page, }; struct intel_gvt_host intel_gvt_host = { diff --git a/drivers/gpu/drm/i915/gvt/mpt.h b/drivers/gpu/drm/i915/gvt/mpt.h index 26c1ee690f7e..3be602a3f764 100644 --- a/drivers/gpu/drm/i915/gvt/mpt.h +++ b/drivers/gpu/drm/i915/gvt/mpt.h @@ -71,19 +71,4 @@ static inline void intel_gvt_hypervisor_host_exit(struct device *dev, void *gvt) intel_gvt_host.mpt->host_exit(dev, gvt); } -/** - * intel_gvt_hypervisor_dma_pin_guest_page - pin guest dma buf - * @vgpu: a vGPU - * @dma_addr: guest dma addr - * - * Returns: - * 0 on success, negative error code if failed. - */ -static inline int -intel_gvt_hypervisor_dma_pin_guest_page(struct intel_vgpu *vgpu, - dma_addr_t dma_addr) -{ - return intel_gvt_host.mpt->dma_pin_guest_page(vgpu, dma_addr); -} - #endif /* _GVT_MPT_H_ */