From: Jeff Fan Date: Thu, 7 May 2015 02:31:30 +0000 (+0000) Subject: MdePkg/SmmGipDispatch2.h: SMM GpiNum meaning clarification X-Git-Tag: edk2-stable201903~9902 X-Git-Url: https://git.proxmox.com/?p=mirror_edk2.git;a=commitdiff_plain;h=035987042c77a68ec0bc9b15f1d95ddda7949d6f MdePkg/SmmGipDispatch2.h: SMM GpiNum meaning clarification To support GPI number > 64, PI 1.4 clarified SMM GpiNum meaning as below: typedef struct { UINT64 GpiNum; } EFI_SMM_GPI_REGISTER_CONTEXT; Instead of the bit mask of 64 possible GPIs, GpiNum is one of 2^64 possible GPIs that can generate an SMI. A 0 corresponds to logical GPI[00], 1 corresponds to logical GPI[1], and so on, and GpiNum of N corresponds to GPI[N], where N can span from 0 to 2^64-1. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Jeff Fan Reviewed-by: Liming Gao git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17350 6f19259b-4bc3-4df7-8a09-765794883524 --- diff --git a/MdePkg/Include/Protocol/SmmGpiDispatch2.h b/MdePkg/Include/Protocol/SmmGpiDispatch2.h index bc06b133dd..65be0ce7cf 100644 --- a/MdePkg/Include/Protocol/SmmGpiDispatch2.h +++ b/MdePkg/Include/Protocol/SmmGpiDispatch2.h @@ -9,7 +9,7 @@ given event types. Several inputs can be enabled. This purpose of this interface is to generate an SMI in response to any of these inputs having a true value provided. - Copyright (c) 2009 - 2010, Intel Corporation. All rights reserved.
+ Copyright (c) 2009 - 2015, Intel Corporation. All rights reserved.
This program and the accompanying materials are licensed and made available under the terms and conditions of the BSD License which accompanies this distribution. The full text of the license may be found at @@ -38,8 +38,9 @@ /// typedef struct { /// - /// A bit mask of 64 possible GPIs that can generate an SMI. Bit 0 corresponds to logical - /// GPI[0], 1 corresponds to logical GPI[1], and so on. + /// A number from one of 2^64 possible GPIs that can generate an SMI. A + /// 0 corresponds to logical GPI[0]; 1 corresponds to logical GPI[1]; and + /// GpiNum of N corresponds to GPI[N], where N can span from 0 to 2^64-1. /// UINT64 GpiNum; } EFI_SMM_GPI_REGISTER_CONTEXT;