From patchwork Fri Oct 14 21:31:57 2016 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: cpaul@redhat.com X-Patchwork-Id: 9377517 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork.web.codeaurora.org (Postfix) with ESMTP id AE7D96075E for ; Fri, 14 Oct 2016 21:32:37 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 9E65D2A7EA for ; Fri, 14 Oct 2016 21:32:37 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 90E1E2A7F6; Fri, 14 Oct 2016 21:32:37 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-4.2 required=2.0 tests=BAYES_00, RCVD_IN_DNSWL_MED autolearn=ham version=3.3.1 Received: from gabe.freedesktop.org (gabe.freedesktop.org [131.252.210.177]) (using TLSv1.2 with cipher DHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.wl.linuxfoundation.org (Postfix) with ESMTPS id 294A72A7EA for ; Fri, 14 Oct 2016 21:32:37 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id E3BB66ECB0; Fri, 14 Oct 2016 21:32:35 +0000 (UTC) X-Original-To: dri-devel@lists.freedesktop.org Delivered-To: dri-devel@lists.freedesktop.org Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by gabe.freedesktop.org (Postfix) with ESMTPS id D86B96ED2C; Fri, 14 Oct 2016 21:32:29 +0000 (UTC) Received: from int-mx13.intmail.prod.int.phx2.redhat.com (int-mx13.intmail.prod.int.phx2.redhat.com [10.5.11.26]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 6DAEEC04B302; Fri, 14 Oct 2016 21:32:29 +0000 (UTC) Received: from whitewolf.lyude.com (vpn-62-67.rdu2.redhat.com [10.10.62.67]) by int-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id u9ELWCdj026043 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO); Fri, 14 Oct 2016 17:32:28 -0400 From: Lyude To: intel-gfx@lists.freedesktop.org Subject: [PATCH v2 09/10] drm/i915/gen9: Actually verify WM levels in verify_wm_state() Date: Fri, 14 Oct 2016 17:31:57 -0400 Message-Id: <1476480722-13015-10-git-send-email-cpaul@redhat.com> In-Reply-To: <1476480722-13015-1-git-send-email-cpaul@redhat.com> References: <1476480722-13015-1-git-send-email-cpaul@redhat.com> MIME-Version: 1.0 X-Scanned-By: MIMEDefang 2.68 on 10.5.11.26 X-Greylist: Sender IP whitelisted, not delayed by milter-greylist-4.5.16 (mx1.redhat.com [10.5.110.31]); Fri, 14 Oct 2016 21:32:29 +0000 (UTC) Cc: Paulo Zanoni , linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, Daniel Vetter , Lyude X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.18 Precedence: list List-Id: Direct Rendering Infrastructure - Development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dri-devel-bounces@lists.freedesktop.org Sender: "dri-devel" X-Virus-Scanned: ClamAV using ClamSMTP Thanks to Paulo Zanoni for indirectly pointing this out. Looks like we never actually added any code for checking whether or not we actually wrote watermark levels properly. Let's fix that. Changes since v1: - Use %u instead of %d when printing WM state mismatches Signed-off-by: Lyude Reviewed-by: Paulo Zanoni Cc: Maarten Lankhorst Cc: Ville Syrjälä Cc: Matt Roper --- drivers/gpu/drm/i915/intel_display.c | 100 +++++++++++++++++++++++++++++------ 1 file changed, 84 insertions(+), 16 deletions(-) diff --git a/drivers/gpu/drm/i915/intel_display.c b/drivers/gpu/drm/i915/intel_display.c index 18e82b4..ca12f0e 100644 --- a/drivers/gpu/drm/i915/intel_display.c +++ b/drivers/gpu/drm/i915/intel_display.c @@ -13455,30 +13455,66 @@ static void verify_wm_state(struct drm_crtc *crtc, struct drm_device *dev = crtc->dev; struct drm_i915_private *dev_priv = to_i915(dev); struct skl_ddb_allocation hw_ddb, *sw_ddb; - struct skl_ddb_entry *hw_entry, *sw_entry; + struct skl_pipe_wm hw_wm, *sw_wm; + struct skl_plane_wm *hw_plane_wm, *sw_plane_wm; + struct skl_ddb_entry *hw_ddb_entry, *sw_ddb_entry; struct intel_crtc *intel_crtc = to_intel_crtc(crtc); const enum pipe pipe = intel_crtc->pipe; - int plane; + int plane, level, max_level = ilk_wm_max_level(dev_priv); if (INTEL_INFO(dev)->gen < 9 || !new_state->active) return; + skl_pipe_wm_get_hw_state(crtc, &hw_wm); + sw_wm = &intel_crtc->wm.active.skl; + skl_ddb_get_hw_state(dev_priv, &hw_ddb); sw_ddb = &dev_priv->wm.skl_hw.ddb; /* planes */ for_each_plane(dev_priv, pipe, plane) { - hw_entry = &hw_ddb.plane[pipe][plane]; - sw_entry = &sw_ddb->plane[pipe][plane]; + hw_plane_wm = &hw_wm.planes[plane]; + sw_plane_wm = &sw_wm->planes[plane]; - if (skl_ddb_entry_equal(hw_entry, sw_entry)) - continue; + /* Watermarks */ + for (level = 0; level <= max_level; level++) { + if (skl_wm_level_equals(&hw_plane_wm->wm[level], + &sw_plane_wm->wm[level])) + continue; + + DRM_ERROR("mismatch in WM pipe %c plane %d level %d (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n", + pipe_name(pipe), plane + 1, level, + sw_plane_wm->wm[level].plane_en, + sw_plane_wm->wm[level].plane_res_b, + sw_plane_wm->wm[level].plane_res_l, + hw_plane_wm->wm[level].plane_en, + hw_plane_wm->wm[level].plane_res_b, + hw_plane_wm->wm[level].plane_res_l); + } - DRM_ERROR("mismatch in DDB state pipe %c plane %d " - "(expected (%u,%u), found (%u,%u))\n", - pipe_name(pipe), plane + 1, - sw_entry->start, sw_entry->end, - hw_entry->start, hw_entry->end); + if (!skl_wm_level_equals(&hw_plane_wm->trans_wm, + &sw_plane_wm->trans_wm)) { + DRM_ERROR("mismatch in trans WM pipe %c plane %d (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n", + pipe_name(pipe), plane + 1, + sw_plane_wm->trans_wm.plane_en, + sw_plane_wm->trans_wm.plane_res_b, + sw_plane_wm->trans_wm.plane_res_l, + hw_plane_wm->trans_wm.plane_en, + hw_plane_wm->trans_wm.plane_res_b, + hw_plane_wm->trans_wm.plane_res_l); + } + + /* DDB */ + hw_ddb_entry = &hw_ddb.plane[pipe][plane]; + sw_ddb_entry = &sw_ddb->plane[pipe][plane]; + + if (!skl_ddb_entry_equal(hw_ddb_entry, sw_ddb_entry)) { + DRM_ERROR("mismatch in DDB state pipe %c plane %d " + "(expected (%u,%u), found (%u,%u))\n", + pipe_name(pipe), plane + 1, + sw_ddb_entry->start, sw_ddb_entry->end, + hw_ddb_entry->start, hw_ddb_entry->end); + } } /* @@ -13488,15 +13524,47 @@ static void verify_wm_state(struct drm_crtc *crtc, * once the plane becomes visible, we can skip this check */ if (intel_crtc->cursor_addr) { - hw_entry = &hw_ddb.plane[pipe][PLANE_CURSOR]; - sw_entry = &sw_ddb->plane[pipe][PLANE_CURSOR]; + hw_plane_wm = &hw_wm.planes[PLANE_CURSOR]; + sw_plane_wm = &sw_wm->planes[PLANE_CURSOR]; + + /* Watermarks */ + for (level = 0; level <= max_level; level++) { + if (skl_wm_level_equals(&hw_plane_wm->wm[level], + &sw_plane_wm->wm[level])) + continue; + + DRM_ERROR("mismatch in WM pipe %c cursor level %d (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n", + pipe_name(pipe), level, + sw_plane_wm->wm[level].plane_en, + sw_plane_wm->wm[level].plane_res_b, + sw_plane_wm->wm[level].plane_res_l, + hw_plane_wm->wm[level].plane_en, + hw_plane_wm->wm[level].plane_res_b, + hw_plane_wm->wm[level].plane_res_l); + } + + if (!skl_wm_level_equals(&hw_plane_wm->trans_wm, + &sw_plane_wm->trans_wm)) { + DRM_ERROR("mismatch in trans WM pipe %c cursor (expected e=%d b=%u l=%u, got e=%d b=%u l=%u)\n", + pipe_name(pipe), + sw_plane_wm->trans_wm.plane_en, + sw_plane_wm->trans_wm.plane_res_b, + sw_plane_wm->trans_wm.plane_res_l, + hw_plane_wm->trans_wm.plane_en, + hw_plane_wm->trans_wm.plane_res_b, + hw_plane_wm->trans_wm.plane_res_l); + } + + /* DDB */ + hw_ddb_entry = &hw_ddb.plane[pipe][PLANE_CURSOR]; + sw_ddb_entry = &sw_ddb->plane[pipe][PLANE_CURSOR]; - if (!skl_ddb_entry_equal(hw_entry, sw_entry)) { + if (!skl_ddb_entry_equal(hw_ddb_entry, sw_ddb_entry)) { DRM_ERROR("mismatch in DDB state pipe %c cursor " "(expected (%u,%u), found (%u,%u))\n", pipe_name(pipe), - sw_entry->start, sw_entry->end, - hw_entry->start, hw_entry->end); + sw_ddb_entry->start, sw_ddb_entry->end, + hw_ddb_entry->start, hw_ddb_entry->end); } } }