From patchwork Tue Nov 2 07:05:54 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 12597953 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 mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id AF69EC433EF for ; Tue, 2 Nov 2021 07:08:20 +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 7305560E08 for ; Tue, 2 Nov 2021 07:08:20 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 7305560E08 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=lst.de Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=lists.freedesktop.org Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id 014866FAC0; Tue, 2 Nov 2021 07:08:20 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) by gabe.freedesktop.org (Postfix) with ESMTPS id C9C8A6FAB7; Tue, 2 Nov 2021 07:08:18 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; 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=5VhoCXCpq8u499w+SP3im3pY/KiRy9zV72umr6tL/YA=; b=yLANPYzHtMLlMpqEb7b9ql+tJA ng5bwMY3VjItDNR1GyTZbdCYjGkeMP7//geBglwDQB4KVDbOiaWO5p/qIZLEsqdLtpv56MEnu8vsb bdgccRyPZyiw8qJUjQy6wy75KZHuefG92QYgNschmSYO1avgCxbvSVbR7Y3/sFy1uodem46loZAGV iTAFKii7mch+st1QBKn9oCKYJI36QPRTfsPoKIetbxMiWz0++6gtFS/X+b+oP1y3lGNKbAEK+U+QV tBdnjdKc9Pa6UoYwoipN6Mt+gzIJDIJGGgzLS+viUSFmvjurC/+nDTdGzQ2FUHT7lU0VseajATQBZ ceDe0s3w==; Received: from 213-225-15-89.nat.highway.a1.net ([213.225.15.89] helo=localhost) by bombadil.infradead.org with esmtpsa (Exim 4.94.2 #2 (Red Hat Linux)) id 1mhnu3-000iLb-Ki; Tue, 02 Nov 2021 07:08:16 +0000 From: Christoph Hellwig To: Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Zhenyu Wang , Zhi Wang Date: Tue, 2 Nov 2021 08:05:54 +0100 Message-Id: <20211102070601.155501-23-hch@lst.de> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20211102070601.155501-1-hch@lst.de> References: <20211102070601.155501-1-hch@lst.de> MIME-Version: 1.0 X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Subject: [Intel-gfx] [PATCH 22/29] 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, dri-devel@lists.freedesktop.org, Jason Gunthorpe , linux-kernel@vger.kernel.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 Reviewed-by: Jason Gunthorpe --- 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 03d82f4f9aa2e..eacfe7beaaf67 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 727b276a29a21..14dc28d329047 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 ba03b3368a955..d49437aeabac8 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 5a35d40f6afee..c186eaa8d980c 100644 --- a/drivers/gpu/drm/i915/gvt/kvmgt.c +++ b/drivers/gpu/drm/i915/gvt/kvmgt.c @@ -1903,8 +1903,7 @@ 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; @@ -1950,7 +1949,6 @@ 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 26c1ee690f7e9..3be602a3f764a 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_ */