From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org 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 smtp.lore.kernel.org (Postfix) with ESMTPS id 53D90FCC042 for ; Fri, 6 Mar 2026 17:19:00 +0000 (UTC) Received: from gabe.freedesktop.org (localhost [127.0.0.1]) by gabe.freedesktop.org (Postfix) with ESMTP id AE27C10E3EF; Fri, 6 Mar 2026 17:18:59 +0000 (UTC) Authentication-Results: gabe.freedesktop.org; dkim=pass (2048-bit key; unprotected) header.d=intel.com header.i=@intel.com header.b="GxZhJMEp"; dkim-atps=neutral Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.15]) by gabe.freedesktop.org (Postfix) with ESMTPS id D548610E3EF; Fri, 6 Mar 2026 17:18:58 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1772817539; x=1804353539; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=7d8ZsppGrUYbiMTl1HbrFV4tmhaJ1EWMYXz0WpUC3Ps=; b=GxZhJMEpoavbWqH2qwXxbsBr9/AV99F85ugVACKZHp0nWBrVs2Tx23Pm A2KbIAVgZgSeEcXQnPB63dOKV+SGDbfR8P6osHX2hnwblOkZS0vYdkrP1 lTwnxOC8k7zwavaSU1hGeSq6v1Jhch50aMOcT5WRvIf8mqDv7UGxDZwfg FGQMy4Fe0Vy7JjjeagGBCGgS6tQ2oh/AS+l3SxyrrCusa+3DrhOdiYuoG lJXqDRP9oSa482Su8ne1827mrH+XJ9rXOWRcKu19A2zl+wSKvExEZuJpH stLxV4P6utOLFb0euGAEsufq+9PY3ycrzrAsphx+xxv2h789nSik+K2N8 Q==; X-CSE-ConnectionGUID: oy6c0jwvRbO5a8giWfG2xQ== X-CSE-MsgGUID: K8m2h33NSb6l8g+dojiNUQ== X-IronPort-AV: E=McAfee;i="6800,10657,11721"; a="77530848" X-IronPort-AV: E=Sophos;i="6.23,105,1770624000"; d="scan'208";a="77530848" Received: from fmviesa010.fm.intel.com ([10.60.135.150]) by orvoesa107.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 06 Mar 2026 09:18:58 -0800 X-CSE-ConnectionGUID: Qb16sJnCSnilhro0Ahw4lg== X-CSE-MsgGUID: APgppG4uRQOhPL6dslL4rg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.23,105,1770624000"; d="scan'208";a="216175186" Received: from dut-2a59.iind.intel.com ([10.190.239.113]) by fmviesa010.fm.intel.com with ESMTP; 06 Mar 2026 09:18:54 -0800 From: Chaitanya Kumar Borah To: dri-devel@lists.freedesktop.org, intel-gfx@lists.freedesktop.org, intel-xe@lists.freedesktop.org Cc: harry.wentland@amd.com, louis.chauvet@bootlin.com, mwen@igalia.com, contact@emersion.fr, alex.hung@amd.com, daniels@collabora.com, uma.shankar@intel.com, maarten.lankhorst@intel.com, pekka.paalanen@collabora.com, pranay.samala@intel.com, swati2.sharma@intel.com, stable@vger.kernel.org Subject: [PATCH 05/10] drm/i915/color: Fix HDR pre-CSC LUT programming loop Date: Fri, 6 Mar 2026 22:23:02 +0530 Message-Id: <20260306165307.3233194-6-chaitanya.kumar.borah@intel.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20260306165307.3233194-1-chaitanya.kumar.borah@intel.com> References: <20260306165307.3233194-1-chaitanya.kumar.borah@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: dri-devel@lists.freedesktop.org X-Mailman-Version: 2.1.29 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" From: Pranay Samala The integer lut programming loop never executes completely due to incorrect condition (i++ > 130). Fix to properly program 129th+ entries for values > 1.0. Cc: #v6.19 Fixes: 82caa1c8813f ("drm/i915/color: Program Pre-CSC registers") Signed-off-by: Pranay Samala --- drivers/gpu/drm/i915/display/intel_color.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/display/intel_color.c b/drivers/gpu/drm/i915/display/intel_color.c index e7950655434b..6d1cffc6d2be 100644 --- a/drivers/gpu/drm/i915/display/intel_color.c +++ b/drivers/gpu/drm/i915/display/intel_color.c @@ -3976,7 +3976,7 @@ xelpd_program_plane_pre_csc_lut(struct intel_dsb *dsb, intel_de_write_dsb(display, dsb, PLANE_PRE_CSC_GAMC_DATA_ENH(pipe, plane, 0), (1 << 24)); - } while (i++ > 130); + } while (i++ < 130); } else { for (i = 0; i < lut_size; i++) { u32 v = (i * ((1 << 24) - 1)) / (lut_size - 1); -- 2.25.1