From patchwork Wed Nov 27 20:12:13 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: =?utf-8?b?VmlsbGUgU3lyasOkbMOk?= X-Patchwork-Id: 11264875 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 3FD2E139A for ; Wed, 27 Nov 2019 20:12:44 +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 257C120661 for ; Wed, 27 Nov 2019 20:12:44 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 257C120661 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 0080089804; Wed, 27 Nov 2019 20:12:42 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga11.intel.com (mga11.intel.com [192.55.52.93]) by gabe.freedesktop.org (Postfix) with ESMTPS id CB0118975F for ; Wed, 27 Nov 2019 20:12:41 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga001.jf.intel.com ([10.7.209.18]) by fmsmga102.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 27 Nov 2019 12:12:41 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.69,250,1571727600"; d="scan'208";a="292169233" Received: from stinkbox.fi.intel.com (HELO stinkbox) ([10.237.72.174]) by orsmga001.jf.intel.com with SMTP; 27 Nov 2019 12:12:39 -0800 Received: by stinkbox (sSMTP sendmail emulation); Wed, 27 Nov 2019 22:12:38 +0200 From: Ville Syrjala To: intel-gfx@lists.freedesktop.org Date: Wed, 27 Nov 2019 22:12:13 +0200 Message-Id: <20191127201222.16669-6-ville.syrjala@linux.intel.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191127201222.16669-1-ville.syrjala@linux.intel.com> References: <20191127201222.16669-1-ville.syrjala@linux.intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v2 05/14] drm/i915/fbc: Precompute gen9 cfb stride w/a X-BeenThere: intel-gfx@lists.freedesktop.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: Intel graphics driver community testing & development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" From: Ville Syrjälä Precompute the override cfb stride value so that we can check it when determining if flip nuke can be used or not. The hardware has 13 bits for this, so we can shrink the storage to u16 while at it. v2: Don't explode when crtc_state->enable_fbc lies to us Signed-off-by: Ville Syrjälä --- drivers/gpu/drm/i915/display/intel_fbc.c | 38 +++++++++++++++--------- drivers/gpu/drm/i915/i915_drv.h | 3 +- 2 files changed, 26 insertions(+), 15 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_fbc.c b/drivers/gpu/drm/i915/display/intel_fbc.c index eefa5a88b304..6a32f1eaefeb 100644 --- a/drivers/gpu/drm/i915/display/intel_fbc.c +++ b/drivers/gpu/drm/i915/display/intel_fbc.c @@ -283,8 +283,7 @@ static void gen7_fbc_activate(struct drm_i915_private *dev_priv) val &= ~(FBC_STRIDE_OVERRIDE | FBC_STRIDE_MASK); - if (i915_gem_object_get_tiling(params->vma->obj) != - I915_TILING_X) + if (params->gen9_wa_cfb_stride) val |= FBC_STRIDE_OVERRIDE | params->gen9_wa_cfb_stride; I915_WRITE(CHICKEN_MISC_4, val); @@ -414,8 +413,8 @@ static void intel_fbc_deactivate(struct drm_i915_private *dev_priv, static int find_compression_threshold(struct drm_i915_private *dev_priv, struct drm_mm_node *node, - int size, - int fb_cpp) + unsigned int size, + unsigned int fb_cpp) { int compression_threshold = 1; int ret; @@ -461,18 +460,15 @@ static int find_compression_threshold(struct drm_i915_private *dev_priv, } } -static int intel_fbc_alloc_cfb(struct intel_crtc *crtc) +static int intel_fbc_alloc_cfb(struct drm_i915_private *dev_priv, + unsigned int size, unsigned int fb_cpp) { - struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); struct intel_fbc *fbc = &dev_priv->fbc; struct drm_mm_node *uninitialized_var(compressed_llb); - int size, fb_cpp, ret; + int ret; WARN_ON(drm_mm_node_allocated(&fbc->compressed_fb)); - size = intel_fbc_calculate_cfb_size(dev_priv, &fbc->state_cache); - fb_cpp = fbc->state_cache.fb.format->cpp[0]; - ret = find_compression_threshold(dev_priv, &fbc->compressed_fb, size, fb_cpp); if (!ret) @@ -823,9 +819,7 @@ static void intel_fbc_get_reg_params(struct intel_crtc *crtc, params->cfb_size = intel_fbc_calculate_cfb_size(dev_priv, cache); - if (IS_GEN(dev_priv, 9) && !IS_GEMINILAKE(dev_priv)) - params->gen9_wa_cfb_stride = DIV_ROUND_UP(cache->plane.src_w, - 32 * fbc->threshold) * 8; + params->gen9_wa_cfb_stride = cache->gen9_wa_cfb_stride; } void intel_fbc_pre_update(struct intel_crtc *crtc, @@ -1054,6 +1048,8 @@ void intel_fbc_enable(struct intel_crtc *crtc, { struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); struct intel_fbc *fbc = &dev_priv->fbc; + struct intel_fbc_state_cache *cache = &fbc->state_cache; + const struct drm_framebuffer *fb = plane_state->hw.fb; if (!fbc_supported(dev_priv)) return; @@ -1076,11 +1072,25 @@ void intel_fbc_enable(struct intel_crtc *crtc, WARN_ON(fbc->crtc != NULL); intel_fbc_update_state_cache(crtc, crtc_state, plane_state); - if (intel_fbc_alloc_cfb(crtc)) { + + /* FIXME crtc_state->enable_fbc lies :( */ + if (!cache->plane.visible) + goto out; + + if (intel_fbc_alloc_cfb(dev_priv, + intel_fbc_calculate_cfb_size(dev_priv, cache), + fb->format->cpp[0])) { fbc->no_fbc_reason = "not enough stolen memory"; goto out; } + if (IS_GEN(dev_priv, 9) && !IS_GEMINILAKE(dev_priv) && + fb->modifier != I915_FORMAT_MOD_X_TILED) + cache->gen9_wa_cfb_stride = + DIV_ROUND_UP(cache->plane.src_w, 32 * fbc->threshold) * 8; + else + cache->gen9_wa_cfb_stride = 0; + DRM_DEBUG_KMS("Enabling FBC on pipe %c\n", pipe_name(crtc->pipe)); fbc->no_fbc_reason = "FBC enabled but not active yet\n"; diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index d0e00078fbce..ccde7eaf7dab 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -417,6 +417,7 @@ struct intel_fbc { const struct drm_format_info *format; unsigned int stride; } fb; + u16 gen9_wa_cfb_stride; } state_cache; /* @@ -442,7 +443,7 @@ struct intel_fbc { } fb; int cfb_size; - unsigned int gen9_wa_cfb_stride; + u16 gen9_wa_cfb_stride; } params; const char *no_fbc_reason;