From patchwork Fri Jan 28 07:09:27 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sai Prakash Ranjan X-Patchwork-Id: 12728013 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 bombadil.infradead.org (bombadil.infradead.org [198.137.202.133]) (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 738CAC433F5 for ; Fri, 28 Jan 2022 07:12:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender: Content-Transfer-Encoding:Content-Type:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:CC:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=N802izEb2Iga2zRrRs5PaZAZDEDHrOmtX4HX25oGyX4=; b=TZsq8YWbD0ZsJ4 bpzrSqoc5AOi/TeL+oPe3LTqc2IV76XnFUbrSwN8ygocApvgy9FuVdFUCnIlnpKkZRvZo24Iui2Ph 1Ga4MIsdlbeSJFNy05t67Du44hKGA2ZDK/KTbWvaFlHdY7OJRByOLGd4iixFGbWBo9N2a5aQZWQFA KLhrlbAMQVl2D/SyoKJfZV8S2mfmYYb3RpallLr1IfMrIbzA0iqUQruCQ2uCmiXvcEBq1NZ6bbyPd PdViRCTvdfJBDvwcUDZHDoxcejiu28dkFasY80OtjLwQXscK/6LiSmLhuUTtsdAT5NQJ0SYkBwlTd 0blqUvnmIvRU6axRZIVQ==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1nDLPI-000jJl-Rk; Fri, 28 Jan 2022 07:10:53 +0000 Received: from alexa-out-sd-01.qualcomm.com ([199.106.114.38]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1nDLOr-000j9a-GR for linux-arm-kernel@lists.infradead.org; Fri, 28 Jan 2022 07:10:26 +0000 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=quicinc.com; i=@quicinc.com; q=dns/txt; s=qcdkim; t=1643353825; x=1674889825; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=B3jIxh/VReGXCnnKjt4ZvVQmPhFcUA+BLGS5UUptUXE=; b=e3b/xnj3U7Vi3/LBLqF7xn8L2nP5jPVV/3xY8L/88DfIdc1/CFpbAf9U AtrYnkGoksEEXHwpkjx4e7KpPEGcbiTFFAlaTu1VDOKXXz4apDxbJ4ja1 4cNPdyTL+KQgTfl0Fn/wR3qaDnpz4CDcpZAYJlqIDuQXn2eKHMvsaNOOz o=; Received: from unknown (HELO ironmsg02-sd.qualcomm.com) ([10.53.140.142]) by alexa-out-sd-01.qualcomm.com with ESMTP; 27 Jan 2022 23:10:25 -0800 X-QCInternal: smtphost Received: from nasanex01c.na.qualcomm.com ([10.47.97.222]) by ironmsg02-sd.qualcomm.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Jan 2022 23:10:25 -0800 Received: from nalasex01a.na.qualcomm.com (10.47.209.196) by nasanex01c.na.qualcomm.com (10.47.97.222) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.922.19; Thu, 27 Jan 2022 23:10:24 -0800 Received: from blr-ubuntu-253.qualcomm.com (10.80.80.8) by nalasex01a.na.qualcomm.com (10.47.209.196) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.2.922.19; Thu, 27 Jan 2022 23:10:20 -0800 From: Sai Prakash Ranjan To: Andy Gross , Bjorn Andersson CC: , , , , Vinod Koul , Manivannan Sadhasivam , Rajendra Nayak , Sai Prakash Ranjan Subject: [PATCH 3/9] soc: qcom: llcc: Add write-cache cacheable support Date: Fri, 28 Jan 2022 12:39:27 +0530 Message-ID: X-Mailer: git-send-email 2.33.1 In-Reply-To: References: MIME-Version: 1.0 X-Originating-IP: [10.80.80.8] X-ClientProxiedBy: nasanex01b.na.qualcomm.com (10.46.141.250) To nalasex01a.na.qualcomm.com (10.47.209.196) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220127_231025_615404_ACA125E7 X-CRM114-Status: GOOD ( 12.42 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org Newer SoCs with LLCC IP version 2.1.0 and later support write sub-cache cacheable feature. Use a separate llcc_slice_config member "write_scid_cacheable_en" to identify this feature and program LLCC_TRP_SCID_WRSC_CACHEABLE_EN register to enable it. Signed-off-by: Sai Prakash Ranjan --- drivers/soc/qcom/llcc-qcom.c | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/drivers/soc/qcom/llcc-qcom.c b/drivers/soc/qcom/llcc-qcom.c index a06764f16023..79fce5a2ff06 100644 --- a/drivers/soc/qcom/llcc-qcom.c +++ b/drivers/soc/qcom/llcc-qcom.c @@ -51,10 +51,12 @@ #define LLCC_TRP_SCID_DIS_CAP_ALLOC 0x21f00 #define LLCC_TRP_PCB_ACT 0x21f04 #define LLCC_TRP_WRSC_EN 0x21f20 +#define LLCC_TRP_WRSC_CACHEABLE_EN 0x21f2c #define BANK_OFFSET_STRIDE 0x80000 #define LLCC_VERSION_2_0_0_0 0x02000000 +#define LLCC_VERSION_2_1_0_0 0x02010000 /** * struct llcc_slice_config - Data associated with the llcc slice @@ -80,6 +82,8 @@ * collapse. * @activate_on_init: Activate the slice immediately after it is programmed * @write_scid_en: Bit enables write cache support for a given scid. + * @write_scid_cacheable_en: Enables write cache cacheable support for a + * given scid (not supported on v2 or older hardware). */ struct llcc_slice_config { u32 usecase_id; @@ -95,6 +99,7 @@ struct llcc_slice_config { bool retain_on_pc; bool activate_on_init; bool write_scid_en; + bool write_scid_cacheable_en; }; struct qcom_llcc_config { @@ -515,6 +520,16 @@ static int _qcom_llcc_cfg_program(const struct llcc_slice_config *config, return ret; } + if (drv_data->version >= LLCC_VERSION_2_1_0_0) { + u32 wr_cache_en; + + wr_cache_en = config->write_scid_cacheable_en << config->slice_id; + ret = regmap_update_bits(drv_data->bcast_regmap, LLCC_TRP_WRSC_CACHEABLE_EN, + BIT(config->slice_id), wr_cache_en); + if (ret) + return ret; + } + if (config->activate_on_init) { desc.slice_id = config->slice_id; ret = llcc_slice_activate(&desc);