From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-pj1-f45.google.com (mail-pj1-f45.google.com [209.85.216.45]) (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 7850925E834 for ; Mon, 18 Aug 2025 04:10:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.216.45 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755490233; cv=none; b=EEfUHAzq0z749gMPQroiSH0Vy4puI6t3GsXqwWEq2wnGVURn7y3wrVe3iHZ/VjbZPf2MKEPgn/l0eejv4+BOxxKs8I2Z4l8XAsPzYmH5aecm6LIX2lfypKjtAoRzRpVqcO5IQFNIDMp1ufEz0/rp4vECbXV4GvQtZZEDq0iEhs8= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755490233; c=relaxed/simple; bh=JzH3yhqwYOudTCMAKRwj0oa4K99Zc+6yOM1JzEGNxmI=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=XHpNnR6CjOzmOnT3yaUfrUySzNOQGnU8McHU+PnqpY1K21TjS/dF7Dg6nvhoi1IllnXUhDUPhMIeWP0QD0i1eHvPkv+BPlHDHXFTX/bFGeysWtDwcUQEI1z0hHx4mGwUO2ePWPhGFi6L3OdIXepD2CQ7O7QaAqcEYQPbzLLp2lM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ventanamicro.com; spf=pass smtp.mailfrom=ventanamicro.com; dkim=pass (2048-bit key) header.d=ventanamicro.com header.i=@ventanamicro.com header.b=CE4akxDe; arc=none smtp.client-ip=209.85.216.45 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ventanamicro.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ventanamicro.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=ventanamicro.com header.i=@ventanamicro.com header.b="CE4akxDe" Received: by mail-pj1-f45.google.com with SMTP id 98e67ed59e1d1-323266d6f57so3660428a91.0 for ; Sun, 17 Aug 2025 21:10:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ventanamicro.com; s=google; t=1755490232; x=1756095032; darn=vger.kernel.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=hPHcLL2SG/7gEz7cPa5IwB1kBN+rHxLpWke4w+6lxok=; b=CE4akxDeqOem6d46ePEyqAupaBofCeegggCdJS5x8WF0ZTSGJolGt2GULq31ZQmP5r L+d8T9US0UE4vNKPGKsN+Ucrk8S1j0F1HIFczzpqvnwbzGVNxpJdqfqwwddWnUuBSvL8 L5PBf/CGHY4YthJwMpae2FFBXWGmks/Q3LeW80WM3uNm6/IExiNR6q/sZ8ZQL+uCP4Hj JHM6brEEG5Chew8SsMKrDOoB5jOJekirDiP4OG0Sx2HuDPra6FTRccHbGffZz0y8CLF4 KutSYj02ADY6qgh9huiUVw1NhLRGIwqEuWh18neqBBpUz04TKhGTLlX4k6l4DGlkkh3b 6kFA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1755490232; x=1756095032; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=hPHcLL2SG/7gEz7cPa5IwB1kBN+rHxLpWke4w+6lxok=; b=EAoLv6j1sVeUzxRTvnd62vyZOqyJSLADm3Z8zH7LiEn/3KIeiEKxCRcEfYtb/Qkx4/ 33GYaPVakA/VOMz9UPJ8QF4vogCjtfomFiC5aW5CPd8TYBqIApT039M+avnfuJZI7O7n aH6VsEKzKNn41Ljn/lhJV+4gLqgCq9mwMDsbq2JAat4kLRmdpuFUuJgjMWxDL5tg9YOO Zvp9eUmWBVrpnSyyWSuFFbZPfKbyO87XSPeGerwM6OZ8eKIM0ZfRJcG1cd0GAJWe6Lju FFUt5bwP/DZvFbkqUDojK05QCdC6rbL7PCdgAinCXEmIzgHOamkp2v0HeDOO/+F6f2bm LwVQ== X-Forwarded-Encrypted: i=1; AJvYcCWG/1wHqsagWNhZOwIPclvQbIbfwCLny8hkSVu5z2Z+lFaUNgW066BglRbwRd2texkbLokxBOmlMkZs@vger.kernel.org X-Gm-Message-State: AOJu0YyKEyvVXxBjIG8TwEhRpuuzWK92Jn/yY6BAKfpW/gl98i/AOMH0 dC7ax5W2XVfWfgxDx8Ts3bf/o/x+emamwGzEHs6gQuUrwKzt3s3lBHJa2L/dw+zsEXM= X-Gm-Gg: ASbGncuL6xfNEliVqCby9Ntn1LFDkXeHsQWAyHVNup6J4tYsGnsL0YLvNx7cmb7YQz/ nb6JHCxpEU4guuxWe/0pTNr06TZ/iHMKzZVRkKPelJ1SbXgHst7NZmZFj0qpEYXVbPFl82/sWYb X40H3FHTpWb7SzE1LJLD+FErl0+XPs1UYYNz2s5RM6LZ4JoJFQ31h/k0pFven++6iPDCuJp/ld/ q/n2govVKQjXj+o8CRS3BIx/fBel/86J+O9fm3tnyBRFimeF7ojrKcP7ALBPo0OC+c/7THw38DG txl3EHmVrcaf01dqun0TljiUgX6LkmQ26CSGg5ywIyP//5ZfOUlAo1pVgrW/zegIvQ8C80b4CuR mWCkKpCyL+09rRPHrcp7dVevidqw456kkg4nSODE8KXxiB0zcZFwZOw== X-Google-Smtp-Source: AGHT+IG2Lm+Y52n6XKyIXBlc4RYKAT1nFaGLczgz8usKKmMpO2sTLSC8znXmp2nRau7FtQyr+2X6Qg== X-Received: by 2002:a17:90b:1e0e:b0:313:62ee:45a with SMTP id 98e67ed59e1d1-32341ed21famr13448415a91.13.1755490231451; Sun, 17 Aug 2025 21:10:31 -0700 (PDT) Received: from localhost.localdomain ([122.171.17.53]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-32343c70356sm6560972a91.25.2025.08.17.21.10.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 17 Aug 2025 21:10:30 -0700 (PDT) From: Anup Patel To: Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jassi Brar , Thomas Gleixner , "Rafael J . Wysocki" , Mika Westerberg , Andy Shevchenko , Linus Walleij , Bartosz Golaszewski , =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Cc: Palmer Dabbelt , Paul Walmsley , Alexandre Ghiti , Len Brown , Sunil V L , Rahul Pathak , Leyfoon Tan , Atish Patra , Andrew Jones , Samuel Holland , Anup Patel , linux-clk@vger.kernel.org, devicetree@vger.kernel.org, linux-acpi@vger.kernel.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, Anup Patel , Atish Patra Subject: [PATCH v10 03/24] RISC-V: Add defines for the SBI message proxy extension Date: Mon, 18 Aug 2025 09:38:59 +0530 Message-ID: <20250818040920.272664-4-apatel@ventanamicro.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250818040920.272664-1-apatel@ventanamicro.com> References: <20250818040920.272664-1-apatel@ventanamicro.com> Precedence: bulk X-Mailing-List: linux-acpi@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add defines for the new SBI message proxy extension which is part of the SBI v3.0 specification. Reviewed-by: Atish Patra Reviewed-by: Andy Shevchenko Co-developed-by: Rahul Pathak Signed-off-by: Rahul Pathak Signed-off-by: Anup Patel --- arch/riscv/include/asm/sbi.h | 62 ++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) diff --git a/arch/riscv/include/asm/sbi.h b/arch/riscv/include/asm/sbi.h index 341e74238aa0..c19e5c7383a6 100644 --- a/arch/riscv/include/asm/sbi.h +++ b/arch/riscv/include/asm/sbi.h @@ -36,6 +36,7 @@ enum sbi_ext_id { SBI_EXT_STA = 0x535441, SBI_EXT_NACL = 0x4E41434C, SBI_EXT_FWFT = 0x46574654, + SBI_EXT_MPXY = 0x4D505859, /* Experimentals extensions must lie within this range */ SBI_EXT_EXPERIMENTAL_START = 0x08000000, @@ -430,6 +431,67 @@ enum sbi_fwft_feature_t { #define SBI_FWFT_SET_FLAG_LOCK BIT(0) +enum sbi_ext_mpxy_fid { + SBI_EXT_MPXY_GET_SHMEM_SIZE, + SBI_EXT_MPXY_SET_SHMEM, + SBI_EXT_MPXY_GET_CHANNEL_IDS, + SBI_EXT_MPXY_READ_ATTRS, + SBI_EXT_MPXY_WRITE_ATTRS, + SBI_EXT_MPXY_SEND_MSG_WITH_RESP, + SBI_EXT_MPXY_SEND_MSG_WITHOUT_RESP, + SBI_EXT_MPXY_GET_NOTIFICATION_EVENTS, +}; + +enum sbi_mpxy_attribute_id { + /* Standard channel attributes managed by MPXY framework */ + SBI_MPXY_ATTR_MSG_PROT_ID = 0x00000000, + SBI_MPXY_ATTR_MSG_PROT_VER = 0x00000001, + SBI_MPXY_ATTR_MSG_MAX_LEN = 0x00000002, + SBI_MPXY_ATTR_MSG_SEND_TIMEOUT = 0x00000003, + SBI_MPXY_ATTR_MSG_COMPLETION_TIMEOUT = 0x00000004, + SBI_MPXY_ATTR_CHANNEL_CAPABILITY = 0x00000005, + SBI_MPXY_ATTR_SSE_EVENT_ID = 0x00000006, + SBI_MPXY_ATTR_MSI_CONTROL = 0x00000007, + SBI_MPXY_ATTR_MSI_ADDR_LO = 0x00000008, + SBI_MPXY_ATTR_MSI_ADDR_HI = 0x00000009, + SBI_MPXY_ATTR_MSI_DATA = 0x0000000A, + SBI_MPXY_ATTR_EVENTS_STATE_CONTROL = 0x0000000B, + SBI_MPXY_ATTR_STD_ATTR_MAX_IDX, + /* + * Message protocol specific attributes, managed by + * the message protocol specification. + */ + SBI_MPXY_ATTR_MSGPROTO_ATTR_START = 0x80000000, + SBI_MPXY_ATTR_MSGPROTO_ATTR_END = 0xffffffff +}; + +/* Possible values of MSG_PROT_ID attribute as-per SBI v3.0 (or higher) */ +enum sbi_mpxy_msgproto_id { + SBI_MPXY_MSGPROTO_RPMI_ID = 0x0, +}; + +/* RPMI message protocol specific MPXY attributes */ +enum sbi_mpxy_rpmi_attribute_id { + SBI_MPXY_RPMI_ATTR_SERVICEGROUP_ID = SBI_MPXY_ATTR_MSGPROTO_ATTR_START, + SBI_MPXY_RPMI_ATTR_SERVICEGROUP_VERSION, + SBI_MPXY_RPMI_ATTR_IMPL_ID, + SBI_MPXY_RPMI_ATTR_IMPL_VERSION, + SBI_MPXY_RPMI_ATTR_MAX_ID +}; + +/* Encoding of MSG_PROT_VER attribute */ +#define SBI_MPXY_MSG_PROT_VER_MAJOR(__ver) upper_16_bits(__ver) +#define SBI_MPXY_MSG_PROT_VER_MINOR(__ver) lower_16_bits(__ver) +#define SBI_MPXY_MSG_PROT_MKVER(__maj, __min) (((u32)(__maj) << 16) | (u16)(__min)) + +/* Capabilities available through CHANNEL_CAPABILITY attribute */ +#define SBI_MPXY_CHAN_CAP_MSI BIT(0) +#define SBI_MPXY_CHAN_CAP_SSE BIT(1) +#define SBI_MPXY_CHAN_CAP_EVENTS_STATE BIT(2) +#define SBI_MPXY_CHAN_CAP_SEND_WITH_RESP BIT(3) +#define SBI_MPXY_CHAN_CAP_SEND_WITHOUT_RESP BIT(4) +#define SBI_MPXY_CHAN_CAP_GET_NOTIFICATIONS BIT(5) + /* SBI spec version fields */ #define SBI_SPEC_VERSION_DEFAULT 0x1 #define SBI_SPEC_VERSION_MAJOR_SHIFT 24 -- 2.43.0 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 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 A17D6CA0EE4 for ; Mon, 18 Aug 2025 04:10:39 +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:Cc:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-ID:Date:Subject:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=VjWXWs6aQLrQ7CY6kHZPGVwTsyT1LbVoumRkwyRyF2Q=; b=CjKLoLK22XGhlN q70TV5ZPadXo95/nGIsB7t72qLPy1+DrVP4jTRNxCa3GineAr2Zarr4zaqBLIxU1mKVRsn5DgZdej LZKA19cA0pcg/a/nwLnbpeeyPhh12jrb1BKxnchvBC01CBIFUCW2tQbFZ4xnqto7TT9WDA7EI6wxp mc+i2k5rFLZzdJYDWfOAi6Bf+cvskdejZ8HwE3d8B44gIGRZr0tpZvHFbpDx7VQHpLi09PFiO/pBK UhkXqduo499pmZjrwHJaUKT5o2Dwsi22G3fKefDwyFsYuR5xKnShHLm1cnkonlkekF4qsctTxjIUu zgqc5vxxUI8ER7tPAJ1Q==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.98.2 #2 (Red Hat Linux)) id 1unrCc-00000006Qva-0oKm; Mon, 18 Aug 2025 04:10:34 +0000 Received: from mail-pj1-x102e.google.com ([2607:f8b0:4864:20::102e]) by bombadil.infradead.org with esmtps (Exim 4.98.2 #2 (Red Hat Linux)) id 1unrCa-00000006Qus-1JXW for linux-riscv@lists.infradead.org; Mon, 18 Aug 2025 04:10:33 +0000 Received: by mail-pj1-x102e.google.com with SMTP id 98e67ed59e1d1-323267bcee7so4439297a91.1 for ; Sun, 17 Aug 2025 21:10:32 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ventanamicro.com; s=google; t=1755490232; x=1756095032; darn=lists.infradead.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=hPHcLL2SG/7gEz7cPa5IwB1kBN+rHxLpWke4w+6lxok=; b=HesPtfRNrnYPiKR5BgCS3htg1ccS2nkjOWl447NcEhGSNWav+URY5KpFeWbdqD+Lvo QWr75Z3fo0V0pVZlM6iGCCKl0rhURadPRRMgpUQJAB2r5EQuk7GFBF9lUxbVNpeHyFeP MCkmC6o7g1jGddtcJOMSPW3SmhoLJMi7A5HxAFPIGCUjc/QKtEquRzT6/kBTtupKFZtD I81oII8XdoQIrlYcSMkmUbgHarKsyEfX10MPCxkhth8bjjsfdcGgMyLYIpdnXbNv4g7L Xcxz0qCmk9gYhj/uu6vMMWSFWJNqhALo6h9em+eE2NLFOFK3e1dVhGlyk+pJlEXqsmt+ xm5g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1755490232; x=1756095032; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=hPHcLL2SG/7gEz7cPa5IwB1kBN+rHxLpWke4w+6lxok=; b=fcYzW6x72ur3F8CvV9CCbc6k1xth7xn+QPaLcJwDOJ3pnsvF35UM5sK9AofBtar7PM JzZOOXkEQ4GII1gXlggJL4uj/mFJ59kNzMDmo+L3FeMjndxuhlVWowyerEMPRj/sLSOE TRuHi1fCVOPUSQQBt8Q0OIY6PGuKi7gvhKUSEwkF0hhfky2VSGFU5sRH9wS4VM0tWHGf bDxjT2QoILi6jYr624cbAX+G7lj0TvaVKKlBxU1sLxRJBsQqg27j0lIvL/aBIadtEn68 AdN302GpgXBkqWO1qKwHsK3Oaf9QtMufJPWuEUrIL6TkEuppVKhk4LdxPivNuqzrTxe8 d1Qg== X-Forwarded-Encrypted: i=1; AJvYcCUmTnBaNAcgxO6Jim4rAHoNyXvxzzjn9cs3wETKIsEWUno3CcQ+GmEoWQB5PFY3f9MSU+2wAtAIFfWnQw==@lists.infradead.org X-Gm-Message-State: AOJu0YzJ6ecP5Yn0EHOWr1Z/iJO1i8JQC3mPmOygs2oqGV0iebRT90ZL CyowtjwC525bS0I9NKpbq+LhbHd+0U5KhzuV3msdTDq80UibPZOpzX8bSJDMymxK4uQ= X-Gm-Gg: ASbGncs2FWDHZBr36OuUlpTmc+lCYOm2G8/6Vkw6Ayf59MMTFhWAqzUrQKPbuzOTCdN RERwFTTMOY2jfY1ZdeorlipXfWx8Ti1PP3CrGPH+NC7iOgOGAWJFHppeamUzqn1NaT4ifs2BVFY U0bzlx0UB7r6jsWbbtmDBd1kDaCgAN47oPy5IxeNHF2UIZVwVQAkh6ePVK9XmohqHO2AREVTYMf XGs32wxdVCxzWknvo2JFazxOGXtk+cBvjBeOK5dSfCED5tdZfHlzD94+mzmhjY+k1Ba8bDSZs7u GKCoIZY1k2i0Q54bPS/EJxCQG2jPpx26XPyNAW+dcQiSZr78SF1nLikgObKDnU7ZGUsJ/EiX59y tuvnGnbmlLZrlHzOL71Fp+axyXYwc0ATwCQ91aZfeV+KHlVnYdqUH2Q== X-Google-Smtp-Source: AGHT+IG2Lm+Y52n6XKyIXBlc4RYKAT1nFaGLczgz8usKKmMpO2sTLSC8znXmp2nRau7FtQyr+2X6Qg== X-Received: by 2002:a17:90b:1e0e:b0:313:62ee:45a with SMTP id 98e67ed59e1d1-32341ed21famr13448415a91.13.1755490231451; Sun, 17 Aug 2025 21:10:31 -0700 (PDT) Received: from localhost.localdomain ([122.171.17.53]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-32343c70356sm6560972a91.25.2025.08.17.21.10.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sun, 17 Aug 2025 21:10:30 -0700 (PDT) From: Anup Patel To: Michael Turquette , Stephen Boyd , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jassi Brar , Thomas Gleixner , "Rafael J . Wysocki" , Mika Westerberg , Andy Shevchenko , Linus Walleij , Bartosz Golaszewski , =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= Subject: [PATCH v10 03/24] RISC-V: Add defines for the SBI message proxy extension Date: Mon, 18 Aug 2025 09:38:59 +0530 Message-ID: <20250818040920.272664-4-apatel@ventanamicro.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250818040920.272664-1-apatel@ventanamicro.com> References: <20250818040920.272664-1-apatel@ventanamicro.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20250817_211032_350561_C0318071 X-CRM114-Status: GOOD ( 11.10 ) X-BeenThere: linux-riscv@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Anup Patel , devicetree@vger.kernel.org, Andrew Jones , Alexandre Ghiti , Atish Patra , Leyfoon Tan , Anup Patel , Atish Patra , linux-kernel@vger.kernel.org, Samuel Holland , linux-acpi@vger.kernel.org, Palmer Dabbelt , Paul Walmsley , linux-riscv@lists.infradead.org, Len Brown , linux-clk@vger.kernel.org, Rahul Pathak Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org Add defines for the new SBI message proxy extension which is part of the SBI v3.0 specification. Reviewed-by: Atish Patra Reviewed-by: Andy Shevchenko Co-developed-by: Rahul Pathak Signed-off-by: Rahul Pathak Signed-off-by: Anup Patel --- arch/riscv/include/asm/sbi.h | 62 ++++++++++++++++++++++++++++++++++++ 1 file changed, 62 insertions(+) diff --git a/arch/riscv/include/asm/sbi.h b/arch/riscv/include/asm/sbi.h index 341e74238aa0..c19e5c7383a6 100644 --- a/arch/riscv/include/asm/sbi.h +++ b/arch/riscv/include/asm/sbi.h @@ -36,6 +36,7 @@ enum sbi_ext_id { SBI_EXT_STA = 0x535441, SBI_EXT_NACL = 0x4E41434C, SBI_EXT_FWFT = 0x46574654, + SBI_EXT_MPXY = 0x4D505859, /* Experimentals extensions must lie within this range */ SBI_EXT_EXPERIMENTAL_START = 0x08000000, @@ -430,6 +431,67 @@ enum sbi_fwft_feature_t { #define SBI_FWFT_SET_FLAG_LOCK BIT(0) +enum sbi_ext_mpxy_fid { + SBI_EXT_MPXY_GET_SHMEM_SIZE, + SBI_EXT_MPXY_SET_SHMEM, + SBI_EXT_MPXY_GET_CHANNEL_IDS, + SBI_EXT_MPXY_READ_ATTRS, + SBI_EXT_MPXY_WRITE_ATTRS, + SBI_EXT_MPXY_SEND_MSG_WITH_RESP, + SBI_EXT_MPXY_SEND_MSG_WITHOUT_RESP, + SBI_EXT_MPXY_GET_NOTIFICATION_EVENTS, +}; + +enum sbi_mpxy_attribute_id { + /* Standard channel attributes managed by MPXY framework */ + SBI_MPXY_ATTR_MSG_PROT_ID = 0x00000000, + SBI_MPXY_ATTR_MSG_PROT_VER = 0x00000001, + SBI_MPXY_ATTR_MSG_MAX_LEN = 0x00000002, + SBI_MPXY_ATTR_MSG_SEND_TIMEOUT = 0x00000003, + SBI_MPXY_ATTR_MSG_COMPLETION_TIMEOUT = 0x00000004, + SBI_MPXY_ATTR_CHANNEL_CAPABILITY = 0x00000005, + SBI_MPXY_ATTR_SSE_EVENT_ID = 0x00000006, + SBI_MPXY_ATTR_MSI_CONTROL = 0x00000007, + SBI_MPXY_ATTR_MSI_ADDR_LO = 0x00000008, + SBI_MPXY_ATTR_MSI_ADDR_HI = 0x00000009, + SBI_MPXY_ATTR_MSI_DATA = 0x0000000A, + SBI_MPXY_ATTR_EVENTS_STATE_CONTROL = 0x0000000B, + SBI_MPXY_ATTR_STD_ATTR_MAX_IDX, + /* + * Message protocol specific attributes, managed by + * the message protocol specification. + */ + SBI_MPXY_ATTR_MSGPROTO_ATTR_START = 0x80000000, + SBI_MPXY_ATTR_MSGPROTO_ATTR_END = 0xffffffff +}; + +/* Possible values of MSG_PROT_ID attribute as-per SBI v3.0 (or higher) */ +enum sbi_mpxy_msgproto_id { + SBI_MPXY_MSGPROTO_RPMI_ID = 0x0, +}; + +/* RPMI message protocol specific MPXY attributes */ +enum sbi_mpxy_rpmi_attribute_id { + SBI_MPXY_RPMI_ATTR_SERVICEGROUP_ID = SBI_MPXY_ATTR_MSGPROTO_ATTR_START, + SBI_MPXY_RPMI_ATTR_SERVICEGROUP_VERSION, + SBI_MPXY_RPMI_ATTR_IMPL_ID, + SBI_MPXY_RPMI_ATTR_IMPL_VERSION, + SBI_MPXY_RPMI_ATTR_MAX_ID +}; + +/* Encoding of MSG_PROT_VER attribute */ +#define SBI_MPXY_MSG_PROT_VER_MAJOR(__ver) upper_16_bits(__ver) +#define SBI_MPXY_MSG_PROT_VER_MINOR(__ver) lower_16_bits(__ver) +#define SBI_MPXY_MSG_PROT_MKVER(__maj, __min) (((u32)(__maj) << 16) | (u16)(__min)) + +/* Capabilities available through CHANNEL_CAPABILITY attribute */ +#define SBI_MPXY_CHAN_CAP_MSI BIT(0) +#define SBI_MPXY_CHAN_CAP_SSE BIT(1) +#define SBI_MPXY_CHAN_CAP_EVENTS_STATE BIT(2) +#define SBI_MPXY_CHAN_CAP_SEND_WITH_RESP BIT(3) +#define SBI_MPXY_CHAN_CAP_SEND_WITHOUT_RESP BIT(4) +#define SBI_MPXY_CHAN_CAP_GET_NOTIFICATIONS BIT(5) + /* SBI spec version fields */ #define SBI_SPEC_VERSION_DEFAULT 0x1 #define SBI_SPEC_VERSION_MAJOR_SHIFT 24 -- 2.43.0 _______________________________________________ linux-riscv mailing list linux-riscv@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-riscv