From patchwork Thu Sep 5 19:17:10 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: "Sharma, Swati2" X-Patchwork-Id: 11133833 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 E86D514B4 for ; Thu, 5 Sep 2019 19:27:20 +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 DF54520692 for ; Thu, 5 Sep 2019 19:27:20 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org DF54520692 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 A67EE89FF6; Thu, 5 Sep 2019 19:27:19 +0000 (UTC) X-Original-To: intel-gfx@lists.freedesktop.org Delivered-To: intel-gfx@lists.freedesktop.org Received: from mga12.intel.com (mga12.intel.com [192.55.52.136]) by gabe.freedesktop.org (Postfix) with ESMTPS id 10BE06E02C for ; Thu, 5 Sep 2019 19:27:18 +0000 (UTC) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga006.fm.intel.com ([10.253.24.20]) by fmsmga106.fm.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 05 Sep 2019 12:27:17 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.64,471,1559545200"; d="scan'208";a="383970334" Received: from genxfsim-shark-bay-client-platform.iind.intel.com ([10.223.34.144]) by fmsmga006.fm.intel.com with ESMTP; 05 Sep 2019 12:27:14 -0700 From: Swati Sharma To: intel-gfx@lists.freedesktop.org Date: Fri, 6 Sep 2019 00:47:10 +0530 Message-Id: <1567711031-26144-3-git-send-email-swati2.sharma@intel.com> X-Mailer: git-send-email 1.9.1 In-Reply-To: <1567711031-26144-1-git-send-email-swati2.sharma@intel.com> References: <1567711031-26144-1-git-send-email-swati2.sharma@intel.com> Subject: [Intel-gfx] [PATCH 2/3] drm/i915/display: Extract i965_read_luts() 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: , Cc: jani.nikula@intel.com, daniel.vetter@ffwll.ch, ankit.k.nautiyal@intel.com MIME-Version: 1.0 Errors-To: intel-gfx-bounces@lists.freedesktop.org Sender: "Intel-gfx" For i965, add hw read out to create hw blob of gamma lut values. Review comments from old series: https://patchwork.freedesktop.org/series/58039/ v4: -No need to initialize *blob [Jani] -Removed right shifts [Jani] -Dropped dev local var [Jani] v5: -Returned blob instead of assigning it internally within the function [Ville] -Renamed i965_get_color_config() to i965_read_lut() [Ville] -Renamed i965_get_gamma_config_10p6() to i965_read_gamma_lut_10p6() [Ville] v9: -Typo and 80 character limit [Uma] -Made read func para as const [Ville, Uma] -Renamed i965_read_gamma_lut_10p6() to i965_read_lut_10p6() [Ville, Uma] v10: -Swapped ldw and udw while creating hw blob [Jani] Signed-off-by: Swati Sharma Reviewed-by: Jani Nikula --- drivers/gpu/drm/i915/display/intel_color.c | 43 ++++++++++++++++++++++++++++++ drivers/gpu/drm/i915/i915_reg.h | 3 +++ 2 files changed, 46 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c index 4d9a568..17199a1 100644 --- a/drivers/gpu/drm/i915/display/intel_color.c +++ b/drivers/gpu/drm/i915/display/intel_color.c @@ -1570,6 +1570,48 @@ static void i9xx_read_luts(struct intel_crtc_state *crtc_state) } static struct drm_property_blob * +i965_read_lut_10p6(const struct intel_crtc_state *crtc_state) +{ + struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc); + struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); + u32 lut_size = INTEL_INFO(dev_priv)->color.gamma_lut_size; + enum pipe pipe = crtc->pipe; + struct drm_property_blob *blob; + struct drm_color_lut *blob_data; + u32 i, val1, val2; + + blob = drm_property_create_blob(&dev_priv->drm, + sizeof(struct drm_color_lut) * lut_size, + NULL); + if (IS_ERR(blob)) + return NULL; + + blob_data = blob->data; + + for (i = 0; i < lut_size - 1; i++) { + val1 = I915_READ(PALETTE(pipe, 2 * i + 0)); + val2 = I915_READ(PALETTE(pipe, 2 * i + 1)); + + blob_data[i].red = REG_FIELD_GET(PALETTE_RED_MASK, val2) << 8 | + REG_FIELD_GET(PALETTE_RED_MASK, val1); + blob_data[i].green = REG_FIELD_GET(PALETTE_GREEN_MASK, val2) << 8 | + REG_FIELD_GET(PALETTE_GREEN_MASK, val1); + blob_data[i].blue = REG_FIELD_GET(PALETTE_BLUE_MASK, val2) << 8 | + REG_FIELD_GET(PALETTE_BLUE_MASK, val1); + } + + return blob; +} + +static void i965_read_luts(struct intel_crtc_state *crtc_state) +{ + if (crtc_state->gamma_mode == GAMMA_MODE_MODE_8BIT) + crtc_state->base.gamma_lut = i9xx_read_lut_8(crtc_state); + else + crtc_state->base.gamma_lut = i965_read_lut_10p6(crtc_state); +} + +static struct drm_property_blob * ilk_read_lut_10(const struct intel_crtc_state *crtc_state) { struct intel_crtc *crtc = to_intel_crtc(crtc_state->base.crtc); @@ -1672,6 +1714,7 @@ void intel_color_init(struct intel_crtc *crtc) dev_priv->display.color_check = i9xx_color_check; dev_priv->display.color_commit = i9xx_color_commit; dev_priv->display.load_luts = i965_load_luts; + dev_priv->display.read_luts = i965_read_luts; } else { dev_priv->display.color_check = i9xx_color_check; dev_priv->display.color_commit = i9xx_color_commit; diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h index 45ed96d..1e58c6d 100644 --- a/drivers/gpu/drm/i915/i915_reg.h +++ b/drivers/gpu/drm/i915/i915_reg.h @@ -3558,6 +3558,9 @@ static inline bool i915_mmio_reg_valid(i915_reg_t reg) #define _PALETTE_A 0xa000 #define _PALETTE_B 0xa800 #define _CHV_PALETTE_C 0xc000 +#define PALETTE_RED_MASK REG_GENMASK(23, 16) +#define PALETTE_GREEN_MASK REG_GENMASK(15, 8) +#define PALETTE_BLUE_MASK REG_GENMASK(7, 0) #define PALETTE(pipe, i) _MMIO(DISPLAY_MMIO_BASE(dev_priv) + \ _PICK((pipe), _PALETTE_A, \ _PALETTE_B, _CHV_PALETTE_C) + \