From patchwork Sun Dec 31 17:38:57 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Dmitry Baryshkov X-Patchwork-Id: 759083 Received: from mail-lf1-f42.google.com (mail-lf1-f42.google.com [209.85.167.42]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 20A418F48 for ; Sun, 31 Dec 2023 17:39:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linaro.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linaro.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=linaro.org header.i=@linaro.org header.b="JjxHTaEv" Received: by mail-lf1-f42.google.com with SMTP id 2adb3069b0e04-50e7288a6e1so6448144e87.2 for ; Sun, 31 Dec 2023 09:39:02 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linaro.org; s=google; t=1704044341; x=1704649141; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=5dsfoDrDqhFi2M0qRhXB0Rpx7fbnSThvVod9k+rsj1w=; b=JjxHTaEvHXnA7gB3XPnej9S34KxFgbXiuI4qYtqkw9VqJ4n8sXQwz5bvmNoV3lh08p aYxP2nUTMYNd54U+URC0k+BCk6uOIE4gssIdRxWHjCnAY88eCP9IgoOg/nB2xtFjkTf+ XfYrvEqb2TSj7JI4lesePsuQLn+/MNjWW9F+BMcKILXvkmDwjzxix+GYOLLKnta3ptBc 79lOFB8aXghTa4W65lUKXkJ8/GVbUg2Rj5n57fs0JmC7UO/AOHW1h5IJxSQegShf4W/x OYz3SnYfngoJFVfozRVGj5w4bavbDS6dQGPO9qnsbwq5E7v45u9S1wh0NTO5emIaIXls syIA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1704044341; x=1704649141; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=5dsfoDrDqhFi2M0qRhXB0Rpx7fbnSThvVod9k+rsj1w=; b=n5YEp+dDGAq7Br9tSaLBgqoCF/vKuTWkeSiXwYNNXqKNVkN53TmDISJTTfSNbROF86 PGrkpv5NVitmiE3MnlUJCHwJw1aPBblb9mNzAGmFiiy301K35NoutYs7peiQonl0Zy3a D8K4kj1ry14vwpabIEfTYSj2jjbKJ++CYxVKbSJNDTowFymuayMmfob4oHY+SBEMmDyG 1wyUdGCsXGmUd/fhhI+p5yYehe9LJ8dIe8WTX3EjWrIOlvhk/pPzYsPEinUha0zNZjV+ UvYohZ8iWwhiPnZpeGk9v2TFkpCk+wbNUkfK/4/qZvTscEQqWe7uH+6pJPogCOrJgsX/ 7iwQ== X-Gm-Message-State: AOJu0YwbfTd4kZHUUABdd7V+t/BSi211Vp31tKiO8S05//+hUn/ja3xv Ay1gaYjJucA4agXuhbOZwK22Ed5B1Ua+8A== X-Google-Smtp-Source: AGHT+IHdyuFseGAB/3R0LnFoRbrdJQuMSd8IMRz+obw9EM5eNufHv6X1VrfVpsujn/vrHdDi1MOobA== X-Received: by 2002:a05:6512:2089:b0:50e:7add:9864 with SMTP id t9-20020a056512208900b0050e7add9864mr4044786lfr.136.1704044341188; Sun, 31 Dec 2023 09:39:01 -0800 (PST) Received: from umbar.lan ([192.130.178.91]) by smtp.gmail.com with ESMTPSA id t27-20020ac243bb000000b0050e798243a7sm2233233lfl.177.2023.12.31.09.39.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 31 Dec 2023 09:39:00 -0800 (PST) From: Dmitry Baryshkov Date: Sun, 31 Dec 2023 19:38:57 +0200 Subject: [PATCH 1/2] ARM: add CLIDR accessor functions Precedence: bulk X-Mailing-List: linux-arm-msm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20231231-armv7-cacheinfo-v1-1-9e8d440b59d9@linaro.org> References: <20231231-armv7-cacheinfo-v1-0-9e8d440b59d9@linaro.org> In-Reply-To: <20231231-armv7-cacheinfo-v1-0-9e8d440b59d9@linaro.org> To: Russell King Cc: linux-arm-kernel@lists.infradead.org, linux-arm-msm@vger.kernel.org, Dmitry Baryshkov X-Mailer: b4 0.12.4 X-Developer-Signature: v=1; a=openpgp-sha256; l=1067; i=dmitry.baryshkov@linaro.org; h=from:subject:message-id; bh=t8WE1+fA8j81+AJkUCcorxLRWwscCfXSF46thI/6wwA=; b=owEBbQGS/pANAwAKAYs8ij4CKSjVAcsmYgBlkacz1VRVujh2jeGLFI2bFDRFeAL+Qf8WsbLin YZGe4LHn62JATMEAAEKAB0WIQRMcISVXLJjVvC4lX+LPIo+Aiko1QUCZZGnMwAKCRCLPIo+Aiko 1Z6MB/961yERcv+6Qiq7sBMKCeFlc760UR919fahlwsE28S78pSCge1cZZtBpnfeHKVr2NgjsnR NNDc5YCEQ+R32kFgyX1CiyzWjiFWzSoX9dLjLN1pa58XrDyjgLLNl9uSxbuBaC2OyDALkEKCFyC cPjmsKPq6gVL0MeoYKHJodo4UDqimRmx70ZeJ5mzD1BKpENPoLBh9hsRvO7hoWxP3ZLAtnOu5GH R56FHgeqadtv2tDnOuLJlhopblr4t4tYiw2Sn88jEC5aqvvtMVLi7cxHSnmhQaw3ll/aDtYkki2 VgSDXSX37wyj9i7fDi1uhxUSG7byDefhhjSAzqka2Z4uRFat X-Developer-Key: i=dmitry.baryshkov@linaro.org; a=openpgp; fpr=8F88381DD5C873E4AE487DA5199BF1243632046A Add functions to read the CLIDR, Cache Level ID Register. Signed-off-by: Dmitry Baryshkov --- arch/arm/include/asm/cachetype.h | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/arch/arm/include/asm/cachetype.h b/arch/arm/include/asm/cachetype.h index e8c30430be33..90203a6d7270 100644 --- a/arch/arm/include/asm/cachetype.h +++ b/arch/arm/include/asm/cachetype.h @@ -81,6 +81,14 @@ static inline unsigned int read_ccsidr(void) asm volatile("mrc p15, 1, %0, c0, c0, 0" : "=r" (val)); return val; } + +static inline unsigned int read_clidr(void) +{ + unsigned int val; + + asm volatile("mrc p15, 1, %0, c0, c0, 1" : "=r" (val)); + return val; +} #else /* CONFIG_CPU_V7M */ #include #include "asm/v7m.h" @@ -94,6 +102,11 @@ static inline unsigned int read_ccsidr(void) { return readl(BASEADDR_V7M_SCB + V7M_SCB_CCSIDR); } + +static inline unsigned int read_clidr(void) +{ + return readl(BASEADDR_V7M_SCB + V7M_SCB_CLIDR); +} #endif #endif