From patchwork Mon May 31 12:19:33 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Thomas Hellstrom X-Patchwork-Id: 12289257 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=-16.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED,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 35995C47082 for ; Mon, 31 May 2021 12:20:23 +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 EF7EB6127C for ; Mon, 31 May 2021 12:20:22 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org EF7EB6127C Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=linux.intel.com 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 1E1556E8F4; Mon, 31 May 2021 12:20:15 +0000 (UTC) Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by gabe.freedesktop.org (Postfix) with ESMTPS id A15B46E903; Mon, 31 May 2021 12:20:13 +0000 (UTC) IronPort-SDR: uPPyHF7Ykrvwo07wXRpkGK7s5YfAGooTzE+QNWhlhPy6pBV99rsAzMGf/ZmI2TUMGXhHQJppBI RN3CqGwephbw== X-IronPort-AV: E=McAfee;i="6200,9189,10000"; a="183027494" X-IronPort-AV: E=Sophos;i="5.83,237,1616482800"; d="scan'208";a="183027494" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by fmsmga106.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 31 May 2021 05:20:13 -0700 IronPort-SDR: rUSNv97ckK1m4Dal3r8/45EvIJc9mmYa9r0bK8UoKqWdMGS3+0knGd7yHqdhEozjLZM3KzWPDP Vp78rjgm6iNg== X-IronPort-AV: E=Sophos;i="5.83,237,1616482800"; d="scan'208";a="473903956" Received: from fnygreen-mobl1.ger.corp.intel.com (HELO thellst-mobl1.intel.com) ([10.249.254.133]) by fmsmga003-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 31 May 2021 05:20:11 -0700 From: =?utf-8?q?Thomas_Hellstr=C3=B6m?= To: intel-gfx@lists.freedesktop.org, dri-devel@lists.freedesktop.org Date: Mon, 31 May 2021 14:19:33 +0200 Message-Id: <20210531121940.267032-9-thomas.hellstrom@linux.intel.com> X-Mailer: git-send-email 2.31.1 In-Reply-To: <20210531121940.267032-1-thomas.hellstrom@linux.intel.com> References: <20210531121940.267032-1-thomas.hellstrom@linux.intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v7 08/15] drm/ttm: Use drm_memcpy_from_wc for TTM bo moves 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: =?utf-8?q?Thomas_Hellstr=C3=B6m?= , =?utf-8?q?Christian_K=C3=B6nig?= , Daniel Vetter Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" Use fast wc memcpy for reading out of wc memory for TTM bo moves. Cc: Dave Airlie Cc: Christian König Cc: Daniel Vetter Signed-off-by: Thomas Hellström Reviewed-by: Christian König #v4 --- v4: - Clarify when we try drm_memcpy_from_wc_dbm (Reported by Matthew Auld) - Be paranoid about when drm_memcpy_from_wc_dbm may fail (Reported by Matthew Auld) v5: - Rebase on change to drm_memcpy_from_wc (Suggested by Daniel Vetter) --- drivers/gpu/drm/ttm/ttm_bo_util.c | 19 +++---------------- 1 file changed, 3 insertions(+), 16 deletions(-) diff --git a/drivers/gpu/drm/ttm/ttm_bo_util.c b/drivers/gpu/drm/ttm/ttm_bo_util.c index 6ac7744a1a5c..a46f705ba78b 100644 --- a/drivers/gpu/drm/ttm/ttm_bo_util.c +++ b/drivers/gpu/drm/ttm/ttm_bo_util.c @@ -31,6 +31,7 @@ #include #include +#include #include #include #include @@ -118,22 +119,8 @@ void ttm_move_memcpy(struct ttm_buffer_object *bo, dst_ops->map_local(dst_iter, &dst_map, i); src_ops->map_local(src_iter, &src_map, i); - if (!src_map.is_iomem && !dst_map.is_iomem) { - memcpy(dst_map.vaddr, src_map.vaddr, PAGE_SIZE); - } else if (!src_map.is_iomem) { - dma_buf_map_memcpy_to(&dst_map, src_map.vaddr, - PAGE_SIZE); - } else if (!dst_map.is_iomem) { - memcpy_fromio(dst_map.vaddr, src_map.vaddr_iomem, - PAGE_SIZE); - } else { - int j; - u32 __iomem *src = src_map.vaddr_iomem; - u32 __iomem *dst = dst_map.vaddr_iomem; - - for (j = 0; j < (PAGE_SIZE / sizeof(u32)); ++j) - iowrite32(ioread32(src++), dst++); - } + drm_memcpy_from_wc(&dst_map, &src_map, PAGE_SIZE); + if (src_ops->unmap_local) src_ops->unmap_local(src_iter, &src_map); if (dst_ops->unmap_local)