From patchwork Tue Nov 2 07:05:53 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Christoph Hellwig X-Patchwork-Id: 12597949 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 86DBFC433F5 for ; Tue, 2 Nov 2021 07:08:14 +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 54A4A60F02 for ; Tue, 2 Nov 2021 07:08:14 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.4.1 mail.kernel.org 54A4A60F02 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 AF6CE6FAD2; Tue, 2 Nov 2021 07:08:13 +0000 (UTC) Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) by gabe.freedesktop.org (Postfix) with ESMTPS id B6ABA6FAB9; Tue, 2 Nov 2021 07:08:11 +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=2a+RfFSwCiVGFwH1/R1/J/3eLHj2AvyXAiy+6QItl+4=; b=l6xJg/PxPimKhq5sTPa2aXjEDu gO7mFYhHDUijh2F6MIVr3ajuN8/x1wobDRjFPYX1bmw8yvXkbkZQ7DU1mfd4JT/4+1miYOrIr6MhX ZelBqII4CbIqeMG90RO5kosLXVUzZkeWSIPHHKXXRdEexbw0PpvOTaMJ17W0iJr6UkrBoeA+Kt9lh XyW/1/8QhTa+dJdQ/mRNY77xSBqY2CEEWrvkaaEUxrg8P78pS7AF6GjqgiV+8agv8MrS0LNtqBck3 ygcCyQfl5dN/+MT5J6UI9Rj4xavoAr0QdCe8uMkHFq7cH7MnQ1+90GrK5aogjddTlRc29veMMrFU+ 0YcFDpiw==; 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 1mhntx-000iKi-OI; Tue, 02 Nov 2021 07:08:10 +0000 From: Christoph Hellwig To: Jani Nikula , Joonas Lahtinen , Rodrigo Vivi , Zhenyu Wang , Zhi Wang Date: Tue, 2 Nov 2021 08:05:53 +0100 Message-Id: <20211102070601.155501-22-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 21/29] drm/i915/gvt: devirtualize ->dma_{, un}map_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 functions directly. Also remove a pointless wrapper. Signed-off-by: Christoph Hellwig Reviewed-by: Jason Gunthorpe --- drivers/gpu/drm/i915/gvt/dmabuf.c | 10 ++-------- drivers/gpu/drm/i915/gvt/gtt.c | 20 +++++++++---------- drivers/gpu/drm/i915/gvt/gvt.h | 4 ++++ drivers/gpu/drm/i915/gvt/hypercall.h | 5 ----- drivers/gpu/drm/i915/gvt/kvmgt.c | 6 ++---- drivers/gpu/drm/i915/gvt/mpt.h | 29 ---------------------------- 6 files changed, 17 insertions(+), 57 deletions(-) diff --git a/drivers/gpu/drm/i915/gvt/dmabuf.c b/drivers/gpu/drm/i915/gvt/dmabuf.c index bc53a0c60b444..03d82f4f9aa2e 100644 --- a/drivers/gpu/drm/i915/gvt/dmabuf.c +++ b/drivers/gpu/drm/i915/gvt/dmabuf.c @@ -48,12 +48,6 @@ static int vgpu_pin_dma_address(struct intel_vgpu *vgpu, return ret; } -static void vgpu_unpin_dma_address(struct intel_vgpu *vgpu, - dma_addr_t dma_addr) -{ - intel_gvt_hypervisor_dma_unmap_guest_page(vgpu, dma_addr); -} - static int vgpu_gem_get_pages( struct drm_i915_gem_object *obj) { @@ -108,7 +102,7 @@ static int vgpu_gem_get_pages( for_each_sg(st->sgl, sg, i, j) { dma_addr = sg_dma_address(sg); if (dma_addr) - vgpu_unpin_dma_address(vgpu, dma_addr); + intel_gvt_dma_unmap_guest_page(vgpu, dma_addr); } sg_free_table(st); kfree(st); @@ -130,7 +124,7 @@ static void vgpu_gem_put_pages(struct drm_i915_gem_object *obj, int i; for_each_sg(pages->sgl, sg, fb_info->size, i) - vgpu_unpin_dma_address(vgpu, + intel_gvt_dma_unmap_guest_page(vgpu, sg_dma_address(sg)); } diff --git a/drivers/gpu/drm/i915/gvt/gtt.c b/drivers/gpu/drm/i915/gvt/gtt.c index 3a7822bbf4570..ae65bd0ba480e 100644 --- a/drivers/gpu/drm/i915/gvt/gtt.c +++ b/drivers/gpu/drm/i915/gvt/gtt.c @@ -1011,7 +1011,7 @@ static inline void ppgtt_invalidate_pte(struct intel_vgpu_ppgtt_spt *spt, if (!pfn || pfn == vgpu->gtt.scratch_pt[type].page_mfn) return; - intel_gvt_hypervisor_dma_unmap_guest_page(vgpu, pfn << PAGE_SHIFT); + intel_gvt_dma_unmap_guest_page(vgpu, pfn << PAGE_SHIFT); } static int ppgtt_invalidate_spt(struct intel_vgpu_ppgtt_spt *spt) @@ -1210,8 +1210,8 @@ static int split_2MB_gtt_entry(struct intel_vgpu *vgpu, return PTR_ERR(sub_spt); for_each_shadow_entry(sub_spt, &sub_se, sub_index) { - ret = intel_gvt_hypervisor_dma_map_guest_page(vgpu, - start_gfn + sub_index, PAGE_SIZE, &dma_addr); + ret = intel_gvt_dma_map_guest_page(vgpu, start_gfn + sub_index, + PAGE_SIZE, &dma_addr); if (ret) { ppgtt_invalidate_spt(spt); return ret; @@ -1256,8 +1256,8 @@ static int split_64KB_gtt_entry(struct intel_vgpu *vgpu, ops->set_64k_splited(&entry); for (i = 0; i < GTT_64K_PTE_STRIDE; i++) { - ret = intel_gvt_hypervisor_dma_map_guest_page(vgpu, - start_gfn + i, PAGE_SIZE, &dma_addr); + ret = intel_gvt_dma_map_guest_page(vgpu, start_gfn + i, + PAGE_SIZE, &dma_addr); if (ret) return ret; @@ -1311,8 +1311,7 @@ static int ppgtt_populate_shadow_entry(struct intel_vgpu *vgpu, } /* direct shadow */ - ret = intel_gvt_hypervisor_dma_map_guest_page(vgpu, gfn, page_size, - &dma_addr); + ret = intel_gvt_dma_map_guest_page(vgpu, gfn, page_size, &dma_addr); if (ret) return -ENXIO; @@ -2243,8 +2242,7 @@ static void ggtt_invalidate_pte(struct intel_vgpu *vgpu, pfn = pte_ops->get_pfn(entry); if (pfn != vgpu->gvt->gtt.scratch_mfn) - intel_gvt_hypervisor_dma_unmap_guest_page(vgpu, - pfn << PAGE_SHIFT); + intel_gvt_dma_unmap_guest_page(vgpu, pfn << PAGE_SHIFT); } static int emulate_ggtt_mmio_write(struct intel_vgpu *vgpu, unsigned int off, @@ -2335,8 +2333,8 @@ static int emulate_ggtt_mmio_write(struct intel_vgpu *vgpu, unsigned int off, goto out; } - ret = intel_gvt_hypervisor_dma_map_guest_page(vgpu, gfn, - PAGE_SIZE, &dma_addr); + ret = intel_gvt_dma_map_guest_page(vgpu, gfn, PAGE_SIZE, + &dma_addr); if (ret) { gvt_vgpu_err("fail to populate guest ggtt entry\n"); /* guest driver may read/write the entry when partial diff --git a/drivers/gpu/drm/i915/gvt/gvt.h b/drivers/gpu/drm/i915/gvt/gvt.h index 28e405e00fecd..727b276a29a21 100644 --- a/drivers/gpu/drm/i915/gvt/gvt.h +++ b/drivers/gpu/drm/i915/gvt/gvt.h @@ -766,6 +766,10 @@ 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_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, + dma_addr_t dma_addr); #include "trace.h" #include "mpt.h" diff --git a/drivers/gpu/drm/i915/gvt/hypercall.h b/drivers/gpu/drm/i915/gvt/hypercall.h index ded13a63ab663..ba03b3368a955 100644 --- a/drivers/gpu/drm/i915/gvt/hypercall.h +++ b/drivers/gpu/drm/i915/gvt/hypercall.h @@ -46,11 +46,6 @@ struct intel_gvt_mpt { int (*host_init)(struct device *dev, void *gvt); void (*host_exit)(struct device *dev, void *gvt); - int (*dma_map_guest_page)(struct intel_vgpu *vgpu, unsigned long gfn, - unsigned long size, dma_addr_t *dma_addr); - void (*dma_unmap_guest_page)(struct intel_vgpu *vgpu, - dma_addr_t dma_addr); - int (*dma_pin_guest_page)(struct intel_vgpu *vgpu, dma_addr_t dma_addr); }; diff --git a/drivers/gpu/drm/i915/gvt/kvmgt.c b/drivers/gpu/drm/i915/gvt/kvmgt.c index 4795d7c223ad7..5a35d40f6afee 100644 --- a/drivers/gpu/drm/i915/gvt/kvmgt.c +++ b/drivers/gpu/drm/i915/gvt/kvmgt.c @@ -1856,7 +1856,7 @@ void intel_vgpu_detach_regions(struct intel_vgpu *vgpu) vgpu->region = NULL; } -static int kvmgt_dma_map_guest_page(struct intel_vgpu *vgpu, unsigned long gfn, +int intel_gvt_dma_map_guest_page(struct intel_vgpu *vgpu, unsigned long gfn, unsigned long size, dma_addr_t *dma_addr) { struct gvt_dma *entry; @@ -1932,7 +1932,7 @@ static void __gvt_dma_release(struct kref *ref) __gvt_cache_remove_entry(entry->vgpu, entry); } -static void kvmgt_dma_unmap_guest_page(struct intel_vgpu *vgpu, +void intel_gvt_dma_unmap_guest_page(struct intel_vgpu *vgpu, dma_addr_t dma_addr) { struct gvt_dma *entry; @@ -1950,8 +1950,6 @@ static void kvmgt_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_map_guest_page = kvmgt_dma_map_guest_page, - .dma_unmap_guest_page = kvmgt_dma_unmap_guest_page, .dma_pin_guest_page = kvmgt_dma_pin_guest_page, }; diff --git a/drivers/gpu/drm/i915/gvt/mpt.h b/drivers/gpu/drm/i915/gvt/mpt.h index d2723ac8bb044..26c1ee690f7e9 100644 --- a/drivers/gpu/drm/i915/gvt/mpt.h +++ b/drivers/gpu/drm/i915/gvt/mpt.h @@ -71,35 +71,6 @@ 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_map_guest_page - setup dma map for guest page - * @vgpu: a vGPU - * @gfn: guest pfn - * @size: page size - * @dma_addr: retrieve allocated dma addr - * - * Returns: - * 0 on success, negative error code if failed. - */ -static inline int intel_gvt_hypervisor_dma_map_guest_page( - struct intel_vgpu *vgpu, unsigned long gfn, unsigned long size, - dma_addr_t *dma_addr) -{ - return intel_gvt_host.mpt->dma_map_guest_page(vgpu, gfn, size, - dma_addr); -} - -/** - * intel_gvt_hypervisor_dma_unmap_guest_page - cancel dma map for guest page - * @vgpu: a vGPU - * @dma_addr: the mapped dma addr - */ -static inline void intel_gvt_hypervisor_dma_unmap_guest_page( - struct intel_vgpu *vgpu, dma_addr_t dma_addr) -{ - intel_gvt_host.mpt->dma_unmap_guest_page(vgpu, dma_addr); -} - /** * intel_gvt_hypervisor_dma_pin_guest_page - pin guest dma buf * @vgpu: a vGPU