From patchwork Tue Sep 24 16:05:07 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: David Woodhouse X-Patchwork-Id: 13811041 Received: from casper.infradead.org (casper.infradead.org [90.155.50.34]) (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 20F5D1AAE39; Tue, 24 Sep 2024 16:05:31 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=90.155.50.34 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727193934; cv=none; b=afqVl813ySgpgWrGFbPQ6zaVY2yGYixauL5pvQnGy+rzj797S+NQhNINH/5sTQotkF+Q9nIuK/+5npBYXLgxmd1pATqeu1lVfm+jG1DrA6kU3toY8ZBjvD1d3+BGYNw4Hog36TNgZ8/wlJ908jTliTH4610F6yjr4iFyBd/BWpI= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1727193934; c=relaxed/simple; bh=DLpACTWgg6UtjxsumUlE13iTjn9+HG31gwbzCwRyKA0=; h=From:To:Subject:Date:Message-ID:MIME-Version; b=JSGdtyrD3unDD4+y+P80aoWbgHH2HGLTvPUC0nhZ7HdwM8M2Slsyvns+VDLe/Nzw6smpVku4tJQHa62dbw+PUWoOsnhOlk1n5ZIQkPg3UJJjspLvlnzmy86Kzn/f7i2aqnx0HXJwWvCLFdopX6rrY+pCW4YGMFzNXOcLdedtpW4= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org; spf=none smtp.mailfrom=casper.srs.infradead.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b=g3XaFWO1; arc=none smtp.client-ip=90.155.50.34 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=infradead.org Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=casper.srs.infradead.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="g3XaFWO1" DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=Sender:Content-Transfer-Encoding: MIME-Version:Message-ID:Date:Subject:To:From:Reply-To:Cc:Content-Type: Content-ID:Content-Description:In-Reply-To:References; bh=gpbsniFgtOHZgJp8y3v9VSnosB7+jAV6rr5l+o89n6M=; b=g3XaFWO1202OH9wg8+ui4k8BIq 89Dv4D35YFZdKmNtpcLAnPnyrwiJP3Bk/fe/WDOqIc0R6r9eMwvwIfvA58vUbCchjXD93242mOhic ugZ1O+TKxyFgFTK7lY8G7r6tbLD/VpgeAbFHEH89FDn0vmPP4h/kgeooTWbvd+QHCjiRJbRANdrW/ oaOzLHqfvFP9dkzAjAlP20hVHc3g8hZWSPzuXd/LMrdK3zRJ8j+4pS2wW7vCLS9vY/nEzhR3mVvrP jOmt8gC7Wh8Eau7tACXrWLuHwUxnWhERpKDa48bxFvhBJKFXKaphLfuN6N/HkswkSIZLKTmqwlAqA y1hE4yug==; Received: from [2001:8b0:10b:1::ebe] (helo=i7.infradead.org) by casper.infradead.org with esmtpsa (Exim 4.98 #2 (Red Hat Linux)) id 1st82K-00000001vkN-3jSP; Tue, 24 Sep 2024 16:05:13 +0000 Received: from dwoodhou by i7.infradead.org with local (Exim 4.97.1 #2 (Red Hat Linux)) id 1st82K-0000000HMiM-1Pnb; Tue, 24 Sep 2024 17:05:12 +0100 From: David Woodhouse To: Paolo Bonzini , Jonathan Corbet , Marc Zyngier , Oliver Upton , James Morse , Suzuki K Poulose , Zenghui Yu , Catalin Marinas , Will Deacon , Mark Rutland , Lorenzo Pieralisi , "Rafael J. Wysocki" , Pavel Machek , Len Brown , Shuah Khan , David Woodhouse , kvm@vger.kernel.org, linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kvmarm@lists.linux.dev, linux-pm@vger.kernel.org, linux-kselftest@vger.kernel.org Subject: [PATCH v4 1/6] firmware/psci: Add definitions for PSCI v1.3 specification Date: Tue, 24 Sep 2024 17:05:07 +0100 Message-ID: <20240924160512.4138879-1-dwmw2@infradead.org> X-Mailer: git-send-email 2.44.0 Precedence: bulk X-Mailing-List: linux-pm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Sender: David Woodhouse X-SRS-Rewrite: SMTP reverse-path rewritten from by casper.infradead.org. See http://www.infradead.org/rpr.html From: David Woodhouse The v1.3 PSCI spec (https://developer.arm.com/documentation/den0022) adds SYSTEM_OFF2, CLEAN_INV_MEMREGION and CLEAN_INV_MEMREGION_ATTRIBUTES functions. Add definitions for them and their parameters, along with the new TIMEOUT, RATE_LIMITED and BUSY error values. Signed-off-by: David Woodhouse --- include/uapi/linux/psci.h | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/include/uapi/linux/psci.h b/include/uapi/linux/psci.h index 42a40ad3fb62..082ed689fdaf 100644 --- a/include/uapi/linux/psci.h +++ b/include/uapi/linux/psci.h @@ -59,6 +59,8 @@ #define PSCI_1_1_FN_SYSTEM_RESET2 PSCI_0_2_FN(18) #define PSCI_1_1_FN_MEM_PROTECT PSCI_0_2_FN(19) #define PSCI_1_1_FN_MEM_PROTECT_CHECK_RANGE PSCI_0_2_FN(20) +#define PSCI_1_3_FN_SYSTEM_OFF2 PSCI_0_2_FN(21) +#define PSCI_1_3_FN_CLEAN_INV_MEMREGION_ATTRIBUTES PSCI_0_2_FN(23) #define PSCI_1_0_FN64_CPU_DEFAULT_SUSPEND PSCI_0_2_FN64(12) #define PSCI_1_0_FN64_NODE_HW_STATE PSCI_0_2_FN64(13) @@ -68,6 +70,8 @@ #define PSCI_1_1_FN64_SYSTEM_RESET2 PSCI_0_2_FN64(18) #define PSCI_1_1_FN64_MEM_PROTECT_CHECK_RANGE PSCI_0_2_FN64(20) +#define PSCI_1_3_FN64_SYSTEM_OFF2 PSCI_0_2_FN64(21) +#define PSCI_1_3_FN64_CLEAN_INV_MEMREGION PSCI_0_2_FN64(22) /* PSCI v0.2 power state encoding for CPU_SUSPEND function */ #define PSCI_0_2_POWER_STATE_ID_MASK 0xffff @@ -100,6 +104,19 @@ #define PSCI_1_1_RESET_TYPE_SYSTEM_WARM_RESET 0 #define PSCI_1_1_RESET_TYPE_VENDOR_START 0x80000000U +/* PSCI v1.3 hibernate type for SYSTEM_OFF2 */ +#define PSCI_1_3_HIBERNATE_TYPE_OFF 0 + +/* PSCI v1.3 flags for CLEAN_INV_MEMREGION */ +#define PSCI_1_3_CLEAN_INV_MEMREGION_FLAG_DRY_RUN BIT(0) + +/* PSCI v1.3 attributes for CLEAN_INV_MEMREGION_ATTRIBUTES */ +#define PSCI_1_3_CLEAN_INV_MEMREGION_ATTR_OP_TYPE 0 +#define PSCI_1_3_CLEAN_INV_MEMREGION_ATTR_CPU_RDVZ 1 +#define PSCI_1_3_CLEAN_INV_MEMREGION_ATTR_LATENCY 2 +#define PSCI_1_3_CLEAN_INV_MEMREGION_ATTR_RATE_LIMIT 3 +#define PSCI_1_3_CLEAN_INV_MEMREGION_ATTR_TIMEOUT 4 + /* PSCI version decoding (independent of PSCI version) */ #define PSCI_VERSION_MAJOR_SHIFT 16 #define PSCI_VERSION_MINOR_MASK \ @@ -133,5 +150,8 @@ #define PSCI_RET_NOT_PRESENT -7 #define PSCI_RET_DISABLED -8 #define PSCI_RET_INVALID_ADDRESS -9 +#define PSCI_RET_TIMEOUT -10 +#define PSCI_RET_RATE_LIMITED -11 +#define PSCI_RET_BUSY -12 #endif /* _UAPI_LINUX_PSCI_H */