From patchwork Thu Apr 9 15:47:19 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stanislav Lisovskiy X-Patchwork-Id: 11481945 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 17F0B17D4 for ; Thu, 9 Apr 2020 15:51:09 +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 F402E20857 for ; Thu, 9 Apr 2020 15:51:08 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F402E20857 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=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 730BD6EBF0; Thu, 9 Apr 2020 15:51:08 +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 984C56EBF2 for ; Thu, 9 Apr 2020 15:51:07 +0000 (UTC) IronPort-SDR: y7fGTyUtHlgKGc7oHzPLlLlhej3SD/488wSDQhWEutAQxpd/BLUzpOwsUBgCaDZGP76299HSxE nvFS3UCRVWCg== X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 09 Apr 2020 08:51:07 -0700 IronPort-SDR: 33XqxvfhoG0eB0IBx3kmJNSlFXTJG/1Rm5E5AH9/cs48ebf23rJJ5DQ1kSoLYAAXhVdgi61FM3 jZiHWXNVeEDQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.72,363,1580803200"; d="scan'208";a="257857071" Received: from unknown (HELO slisovsk-Lenovo-ideapad-720S-13IKB.fi.intel.com) ([10.237.72.89]) by orsmga008.jf.intel.com with ESMTP; 09 Apr 2020 08:51:04 -0700 From: Stanislav Lisovskiy To: intel-gfx@lists.freedesktop.org Date: Thu, 9 Apr 2020 18:47:19 +0300 Message-Id: <20200409154730.18568-3-stanislav.lisovskiy@intel.com> X-Mailer: git-send-email 2.24.1.485.gad05a3d8e5 In-Reply-To: <20200409154730.18568-1-stanislav.lisovskiy@intel.com> References: <20200409154730.18568-1-stanislav.lisovskiy@intel.com> MIME-Version: 1.0 Subject: [Intel-gfx] [PATCH v22 02/13] drm/i915: Eliminate magic numbers "0" and "1" from color plane 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: jani.nikula@intel.com Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" According to many computer science sources - magic values in code _are_ _bad_. For many reasons: the reason is that "0" or "1" or whatever magic values confuses and doesn't give any info why this parameter is this value and what it's meaning is. I renamed "0" to COLOR_PLANE_Y and "1" to COLOR_PLANE_UV, because we in fact already use this naming in many other places and function names, when dealing with color planes. v2: Removed long line to make checkpatch happy. Signed-off-by: Stanislav Lisovskiy --- .../drm/i915/display/intel_display_types.h | 5 +++ drivers/gpu/drm/i915/intel_pm.c | 42 ++++++++++--------- 2 files changed, 27 insertions(+), 20 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h index ba8c08145c88..b437182c630a 100644 --- a/drivers/gpu/drm/i915/display/intel_display_types.h +++ b/drivers/gpu/drm/i915/display/intel_display_types.h @@ -691,6 +691,11 @@ struct skl_plane_wm { bool is_planar; }; +enum color_plane { + COLOR_PLANE_Y, + COLOR_PLANE_UV +}; + struct skl_pipe_wm { struct skl_plane_wm planes[I915_MAX_PLANES]; }; diff --git a/drivers/gpu/drm/i915/intel_pm.c b/drivers/gpu/drm/i915/intel_pm.c index b632b6bb9c3e..176a28d71822 100644 --- a/drivers/gpu/drm/i915/intel_pm.c +++ b/drivers/gpu/drm/i915/intel_pm.c @@ -4013,7 +4013,7 @@ static int skl_compute_wm_params(const struct intel_crtc_state *crtc_state, int width, const struct drm_format_info *format, u64 modifier, unsigned int rotation, u32 plane_pixel_rate, struct skl_wm_params *wp, - int color_plane); + enum color_plane); static void skl_compute_plane_wm(const struct intel_crtc_state *crtc_state, int level, unsigned int latency, @@ -4035,7 +4035,7 @@ skl_cursor_allocation(const struct intel_crtc_state *crtc_state, drm_format_info(DRM_FORMAT_ARGB8888), DRM_FORMAT_MOD_LINEAR, DRM_MODE_ROTATE_0, - crtc_state->pixel_rate, &wp, 0); + crtc_state->pixel_rate, &wp, COLOR_PLANE_Y); drm_WARN_ON(&dev_priv->drm, ret); for (level = 0; level <= max_level; level++) { @@ -4431,7 +4431,7 @@ static u8 skl_compute_dbuf_slices(const struct intel_crtc_state *crtc_state, static u64 skl_plane_relative_data_rate(const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state, - int color_plane) + enum color_plane color_plane) { struct intel_plane *plane = to_intel_plane(plane_state->uapi.plane); const struct drm_framebuffer *fb = plane_state->hw.fb; @@ -4446,7 +4446,7 @@ skl_plane_relative_data_rate(const struct intel_crtc_state *crtc_state, if (plane->id == PLANE_CURSOR) return 0; - if (color_plane == 1 && + if (color_plane == COLOR_PLANE_UV && !intel_format_info_is_yuv_semiplanar(fb->format, fb->modifier)) return 0; @@ -4459,7 +4459,7 @@ skl_plane_relative_data_rate(const struct intel_crtc_state *crtc_state, height = drm_rect_height(&plane_state->uapi.src) >> 16; /* UV plane does 1/2 pixel sub-sampling */ - if (color_plane == 1) { + if (color_plane == COLOR_PLANE_UV) { width /= 2; height /= 2; } @@ -4489,12 +4489,12 @@ skl_get_total_relative_data_rate(struct intel_crtc_state *crtc_state, u64 rate; /* packed/y */ - rate = skl_plane_relative_data_rate(crtc_state, plane_state, 0); + rate = skl_plane_relative_data_rate(crtc_state, plane_state, COLOR_PLANE_Y); plane_data_rate[plane_id] = rate; total_data_rate += rate; /* uv-plane */ - rate = skl_plane_relative_data_rate(crtc_state, plane_state, 1); + rate = skl_plane_relative_data_rate(crtc_state, plane_state, COLOR_PLANE_UV); uv_plane_data_rate[plane_id] = rate; total_data_rate += rate; } @@ -4516,7 +4516,7 @@ icl_get_total_relative_data_rate(struct intel_crtc_state *crtc_state, u64 rate; if (!plane_state->planar_linked_plane) { - rate = skl_plane_relative_data_rate(crtc_state, plane_state, 0); + rate = skl_plane_relative_data_rate(crtc_state, plane_state, COLOR_PLANE_Y); plane_data_rate[plane_id] = rate; total_data_rate += rate; } else { @@ -4533,12 +4533,14 @@ icl_get_total_relative_data_rate(struct intel_crtc_state *crtc_state, continue; /* Y plane rate is calculated on the slave */ - rate = skl_plane_relative_data_rate(crtc_state, plane_state, 0); + rate = skl_plane_relative_data_rate(crtc_state, plane_state, + COLOR_PLANE_Y); y_plane_id = plane_state->planar_linked_plane->id; plane_data_rate[y_plane_id] = rate; total_data_rate += rate; - rate = skl_plane_relative_data_rate(crtc_state, plane_state, 1); + rate = skl_plane_relative_data_rate(crtc_state, plane_state, + COLOR_PLANE_UV); plane_data_rate[plane_id] = rate; total_data_rate += rate; } @@ -4854,14 +4856,14 @@ skl_compute_wm_params(const struct intel_crtc_state *crtc_state, int width, const struct drm_format_info *format, u64 modifier, unsigned int rotation, u32 plane_pixel_rate, struct skl_wm_params *wp, - int color_plane) + enum color_plane color_plane) { struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); u32 interm_pbpl; /* only planar format has two planes */ - if (color_plane == 1 && + if (color_plane == COLOR_PLANE_UV && !intel_format_info_is_yuv_semiplanar(format, modifier)) { drm_dbg_kms(&dev_priv->drm, "Non planar format have single plane\n"); @@ -4878,7 +4880,7 @@ skl_compute_wm_params(const struct intel_crtc_state *crtc_state, wp->is_planar = intel_format_info_is_yuv_semiplanar(format, modifier); wp->width = width; - if (color_plane == 1 && wp->is_planar) + if (color_plane == COLOR_PLANE_UV && wp->is_planar) wp->width /= 2; wp->cpp = format->cpp[color_plane]; @@ -4945,7 +4947,7 @@ skl_compute_wm_params(const struct intel_crtc_state *crtc_state, static int skl_compute_plane_wm_params(const struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state, - struct skl_wm_params *wp, int color_plane) + struct skl_wm_params *wp, enum color_plane color_plane) { const struct drm_framebuffer *fb = plane_state->hw.fb; int width; @@ -5187,7 +5189,7 @@ static void skl_compute_transition_wm(const struct intel_crtc_state *crtc_state, static int skl_build_plane_wm_single(struct intel_crtc_state *crtc_state, const struct intel_plane_state *plane_state, - enum plane_id plane_id, int color_plane) + enum plane_id plane_id, enum color_plane color_plane) { struct skl_plane_wm *wm = &crtc_state->wm.skl.optimal.planes[plane_id]; struct skl_wm_params wm_params; @@ -5216,7 +5218,7 @@ static int skl_build_plane_wm_uv(struct intel_crtc_state *crtc_state, /* uv plane watermarks must also be validated for NV12/Planar */ ret = skl_compute_plane_wm_params(crtc_state, plane_state, - &wm_params, 1); + &wm_params, COLOR_PLANE_UV); if (ret) return ret; @@ -5237,7 +5239,7 @@ static int skl_build_plane_wm(struct intel_crtc_state *crtc_state, return 0; ret = skl_build_plane_wm_single(crtc_state, plane_state, - plane_id, 0); + plane_id, COLOR_PLANE_Y); if (ret) return ret; @@ -5270,17 +5272,17 @@ static int icl_build_plane_wm(struct intel_crtc_state *crtc_state, fb->format->num_planes == 1); ret = skl_build_plane_wm_single(crtc_state, plane_state, - y_plane_id, 0); + y_plane_id, COLOR_PLANE_Y); if (ret) return ret; ret = skl_build_plane_wm_single(crtc_state, plane_state, - plane_id, 1); + plane_id, COLOR_PLANE_UV); if (ret) return ret; } else if (intel_wm_plane_visible(crtc_state, plane_state)) { ret = skl_build_plane_wm_single(crtc_state, plane_state, - plane_id, 0); + plane_id, COLOR_PLANE_Y); if (ret) return ret; }