From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 1B27E1F4289 for ; Sun, 20 Jul 2025 23:47:20 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753055242; cv=none; b=Nbb2qmf6F6YdrtYstd30sJo1FU2cxDFd2ZWyBXTtSvK1LHHM/34WrnG46JcdI0paFILT9YPi+ns2n1DFyJ4jIEyY5bohA0Y56EtI7ZCGgDW267708pBOpBJZDZGg+eKNMsM5WyC8SyAgRHFSDW36RkQi1LhGXNcS2/bTGqyk57w= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1753055242; c=relaxed/simple; bh=Su9/iTrXOISWFC1ULeqQqO+KtLQmpJzcXoW5/BRqCEs=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=VRrRkSMbNdaSIgD7uXlXucEpF2fQLDFYzYqXy3o+PKIMjTqoAMIy7hECzvYBcx2Z4nd8cn8wbLZ59CgZuU9BAzDQw311zOZ7KkJz71jUVJGIpwP9BKBqWtWPTQtjB1/grKmji/bYeCyrgsn9tVaK+a+qhao9PAL5LWWLVJcZVnc= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=a1gdOzKL; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="a1gdOzKL" Received: by smtp.kernel.org (Postfix) with ESMTPSA id AC491C4CEE7; Sun, 20 Jul 2025 23:47:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1753055240; bh=Su9/iTrXOISWFC1ULeqQqO+KtLQmpJzcXoW5/BRqCEs=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=a1gdOzKLr+gCKti9PygxvtqygcIwqO7dwtKXqmaDeaENrnmi4EMN91mZCnK3jfZUZ aPw9qEOoaWsT6kbpRGkwAeMME1S99zbpyBqu4xsbHIz4h6RVhMOCahHVHPgc1DIel2 jPbNijT8Rzpergi+jlKcSJTkmCJGPIZtQjozEjB/SlnEcw7Ja7qhxljJt5oVbHS+Gf E8OxxCLVJZZbI0hvEBL5li6lsviXAr6s7CvHbphpZbBqjYFRbD6CWqsMrT9bKMUqXC ComX/5QS1iXHN2CGbViJMFXBOjLJJZnmPhtvQOVfwVUJU5qGi9Q3lPwLMWXLRkkK9k 2ABDdvxCtI9XA== From: Sasha Levin To: stable@vger.kernel.org Cc: Zhang Rui , Wang Wendy , "Rafael J . Wysocki" , Sasha Levin Subject: [PATCH 6.1.y 3/7] powercap: intel_rapl: Use index to initialize primitive information Date: Sun, 20 Jul 2025 19:47:01 -0400 Message-Id: <20250720234705.764310-3-sashal@kernel.org> X-Mailer: git-send-email 2.39.5 In-Reply-To: <20250720234705.764310-1-sashal@kernel.org> References: <2025070817-quaintly-lend-80a3@gregkh> <20250720234705.764310-1-sashal@kernel.org> Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Zhang Rui [ Upstream commit 11edbe5c66d624e2e1eec8929d3668d76a574c3b ] Currently, the RAPL primitive information array is required to be initialized in the order of enum rapl_primitives. This can break easily, especially when different RAPL Interfaces may support different sets of primitives. Convert the code to initialize the primitive information using array index explicitly. No functional change. Signed-off-by: Zhang Rui Tested-by: Wang Wendy Signed-off-by: Rafael J. Wysocki Stable-dep-of: 964209202ebe ("powercap: intel_rapl: Do not change CLAMPING bit if ENABLE bit cannot be changed") Signed-off-by: Sasha Levin --- drivers/powercap/intel_rapl_common.c | 54 ++++++++++++++-------------- 1 file changed, 26 insertions(+), 28 deletions(-) diff --git a/drivers/powercap/intel_rapl_common.c b/drivers/powercap/intel_rapl_common.c index e99905ca271da..169a08e691e8f 100644 --- a/drivers/powercap/intel_rapl_common.c +++ b/drivers/powercap/intel_rapl_common.c @@ -653,61 +653,59 @@ static u64 rapl_unit_xlate(struct rapl_domain *rd, enum unit_type type, return div64_u64(value, scale); } -/* in the order of enum rapl_primitives */ -static struct rapl_primitive_info rpi_default[] = { +static struct rapl_primitive_info rpi_default[NR_RAPL_PRIMITIVES] = { /* name, mask, shift, msr index, unit divisor */ - PRIMITIVE_INFO_INIT(ENERGY_COUNTER, ENERGY_STATUS_MASK, 0, + [ENERGY_COUNTER] = PRIMITIVE_INFO_INIT(ENERGY_COUNTER, ENERGY_STATUS_MASK, 0, RAPL_DOMAIN_REG_STATUS, ENERGY_UNIT, 0), - PRIMITIVE_INFO_INIT(POWER_LIMIT1, POWER_LIMIT1_MASK, 0, + [POWER_LIMIT1] = PRIMITIVE_INFO_INIT(POWER_LIMIT1, POWER_LIMIT1_MASK, 0, RAPL_DOMAIN_REG_LIMIT, POWER_UNIT, 0), - PRIMITIVE_INFO_INIT(POWER_LIMIT2, POWER_LIMIT2_MASK, 32, + [POWER_LIMIT2] = PRIMITIVE_INFO_INIT(POWER_LIMIT2, POWER_LIMIT2_MASK, 32, RAPL_DOMAIN_REG_LIMIT, POWER_UNIT, 0), - PRIMITIVE_INFO_INIT(POWER_LIMIT4, POWER_LIMIT4_MASK, 0, + [POWER_LIMIT4] = PRIMITIVE_INFO_INIT(POWER_LIMIT4, POWER_LIMIT4_MASK, 0, RAPL_DOMAIN_REG_PL4, POWER_UNIT, 0), - PRIMITIVE_INFO_INIT(FW_LOCK, POWER_LOW_LOCK, 31, + [FW_LOCK] = PRIMITIVE_INFO_INIT(FW_LOCK, POWER_LOW_LOCK, 31, RAPL_DOMAIN_REG_LIMIT, ARBITRARY_UNIT, 0), - PRIMITIVE_INFO_INIT(PL1_ENABLE, POWER_LIMIT1_ENABLE, 15, + [PL1_ENABLE] = PRIMITIVE_INFO_INIT(PL1_ENABLE, POWER_LIMIT1_ENABLE, 15, RAPL_DOMAIN_REG_LIMIT, ARBITRARY_UNIT, 0), - PRIMITIVE_INFO_INIT(PL1_CLAMP, POWER_LIMIT1_CLAMP, 16, + [PL1_CLAMP] = PRIMITIVE_INFO_INIT(PL1_CLAMP, POWER_LIMIT1_CLAMP, 16, RAPL_DOMAIN_REG_LIMIT, ARBITRARY_UNIT, 0), - PRIMITIVE_INFO_INIT(PL2_ENABLE, POWER_LIMIT2_ENABLE, 47, + [PL2_ENABLE] = PRIMITIVE_INFO_INIT(PL2_ENABLE, POWER_LIMIT2_ENABLE, 47, RAPL_DOMAIN_REG_LIMIT, ARBITRARY_UNIT, 0), - PRIMITIVE_INFO_INIT(PL2_CLAMP, POWER_LIMIT2_CLAMP, 48, + [PL2_CLAMP] = PRIMITIVE_INFO_INIT(PL2_CLAMP, POWER_LIMIT2_CLAMP, 48, RAPL_DOMAIN_REG_LIMIT, ARBITRARY_UNIT, 0), - PRIMITIVE_INFO_INIT(PL4_ENABLE, POWER_LIMIT4_MASK, 0, + [PL4_ENABLE] = PRIMITIVE_INFO_INIT(PL4_ENABLE, POWER_LIMIT4_MASK, 0, RAPL_DOMAIN_REG_PL4, ARBITRARY_UNIT, 0), - PRIMITIVE_INFO_INIT(TIME_WINDOW1, TIME_WINDOW1_MASK, 17, + [TIME_WINDOW1] = PRIMITIVE_INFO_INIT(TIME_WINDOW1, TIME_WINDOW1_MASK, 17, RAPL_DOMAIN_REG_LIMIT, TIME_UNIT, 0), - PRIMITIVE_INFO_INIT(TIME_WINDOW2, TIME_WINDOW2_MASK, 49, + [TIME_WINDOW2] = PRIMITIVE_INFO_INIT(TIME_WINDOW2, TIME_WINDOW2_MASK, 49, RAPL_DOMAIN_REG_LIMIT, TIME_UNIT, 0), - PRIMITIVE_INFO_INIT(THERMAL_SPEC_POWER, POWER_INFO_THERMAL_SPEC_MASK, + [THERMAL_SPEC_POWER] = PRIMITIVE_INFO_INIT(THERMAL_SPEC_POWER, POWER_INFO_THERMAL_SPEC_MASK, 0, RAPL_DOMAIN_REG_INFO, POWER_UNIT, 0), - PRIMITIVE_INFO_INIT(MAX_POWER, POWER_INFO_MAX_MASK, 32, + [MAX_POWER] = PRIMITIVE_INFO_INIT(MAX_POWER, POWER_INFO_MAX_MASK, 32, RAPL_DOMAIN_REG_INFO, POWER_UNIT, 0), - PRIMITIVE_INFO_INIT(MIN_POWER, POWER_INFO_MIN_MASK, 16, + [MIN_POWER] = PRIMITIVE_INFO_INIT(MIN_POWER, POWER_INFO_MIN_MASK, 16, RAPL_DOMAIN_REG_INFO, POWER_UNIT, 0), - PRIMITIVE_INFO_INIT(MAX_TIME_WINDOW, POWER_INFO_MAX_TIME_WIN_MASK, 48, + [MAX_TIME_WINDOW] = PRIMITIVE_INFO_INIT(MAX_TIME_WINDOW, POWER_INFO_MAX_TIME_WIN_MASK, 48, RAPL_DOMAIN_REG_INFO, TIME_UNIT, 0), - PRIMITIVE_INFO_INIT(THROTTLED_TIME, PERF_STATUS_THROTTLE_TIME_MASK, 0, + [THROTTLED_TIME] = PRIMITIVE_INFO_INIT(THROTTLED_TIME, PERF_STATUS_THROTTLE_TIME_MASK, 0, RAPL_DOMAIN_REG_PERF, TIME_UNIT, 0), - PRIMITIVE_INFO_INIT(PRIORITY_LEVEL, PP_POLICY_MASK, 0, + [PRIORITY_LEVEL] = PRIMITIVE_INFO_INIT(PRIORITY_LEVEL, PP_POLICY_MASK, 0, RAPL_DOMAIN_REG_POLICY, ARBITRARY_UNIT, 0), - PRIMITIVE_INFO_INIT(PSYS_POWER_LIMIT1, PSYS_POWER_LIMIT1_MASK, 0, + [PSYS_POWER_LIMIT1] = PRIMITIVE_INFO_INIT(PSYS_POWER_LIMIT1, PSYS_POWER_LIMIT1_MASK, 0, RAPL_DOMAIN_REG_LIMIT, POWER_UNIT, 0), - PRIMITIVE_INFO_INIT(PSYS_POWER_LIMIT2, PSYS_POWER_LIMIT2_MASK, 32, + [PSYS_POWER_LIMIT2] = PRIMITIVE_INFO_INIT(PSYS_POWER_LIMIT2, PSYS_POWER_LIMIT2_MASK, 32, RAPL_DOMAIN_REG_LIMIT, POWER_UNIT, 0), - PRIMITIVE_INFO_INIT(PSYS_PL1_ENABLE, PSYS_POWER_LIMIT1_ENABLE, 17, + [PSYS_PL1_ENABLE] = PRIMITIVE_INFO_INIT(PSYS_PL1_ENABLE, PSYS_POWER_LIMIT1_ENABLE, 17, RAPL_DOMAIN_REG_LIMIT, ARBITRARY_UNIT, 0), - PRIMITIVE_INFO_INIT(PSYS_PL2_ENABLE, PSYS_POWER_LIMIT2_ENABLE, 49, + [PSYS_PL2_ENABLE] = PRIMITIVE_INFO_INIT(PSYS_PL2_ENABLE, PSYS_POWER_LIMIT2_ENABLE, 49, RAPL_DOMAIN_REG_LIMIT, ARBITRARY_UNIT, 0), - PRIMITIVE_INFO_INIT(PSYS_TIME_WINDOW1, PSYS_TIME_WINDOW1_MASK, 19, + [PSYS_TIME_WINDOW1] = PRIMITIVE_INFO_INIT(PSYS_TIME_WINDOW1, PSYS_TIME_WINDOW1_MASK, 19, RAPL_DOMAIN_REG_LIMIT, TIME_UNIT, 0), - PRIMITIVE_INFO_INIT(PSYS_TIME_WINDOW2, PSYS_TIME_WINDOW2_MASK, 51, + [PSYS_TIME_WINDOW2] = PRIMITIVE_INFO_INIT(PSYS_TIME_WINDOW2, PSYS_TIME_WINDOW2_MASK, 51, RAPL_DOMAIN_REG_LIMIT, TIME_UNIT, 0), /* non-hardware */ - PRIMITIVE_INFO_INIT(AVERAGE_POWER, 0, 0, 0, POWER_UNIT, + [AVERAGE_POWER] = PRIMITIVE_INFO_INIT(AVERAGE_POWER, 0, 0, 0, POWER_UNIT, RAPL_PRIMITIVE_DERIVED), - {NULL, 0, 0, 0}, }; static struct rapl_primitive_info *get_rpi(struct rapl_package *rp, int prim) -- 2.39.5