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 X-Spam-Level: X-Spam-Status: No, score=-8.6 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SIGNED_OFF_BY, SPF_HELO_NONE,SPF_PASS,USER_AGENT_GIT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 96322C43613 for ; Sat, 22 Jun 2019 13:40:15 +0000 (UTC) Received: from lists.ozlabs.org (lists.ozlabs.org [203.11.71.2]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 0EE0E20665 for ; Sat, 22 Jun 2019 13:40:14 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="LoFLcSlP" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 0EE0E20665 Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=gmail.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Received: from lists.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 45WGrr4vcpzDqf8 for ; Sat, 22 Jun 2019 23:40:12 +1000 (AEST) Authentication-Results: lists.ozlabs.org; spf=pass (mailfrom) smtp.mailfrom=gmail.com (client-ip=2607:f8b0:4864:20::643; helo=mail-pl1-x643.google.com; envelope-from=npiggin@gmail.com; receiver=) Authentication-Results: lists.ozlabs.org; dmarc=pass (p=none dis=none) header.from=gmail.com Authentication-Results: lists.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=gmail.com header.i=@gmail.com header.b="LoFLcSlP"; dkim-atps=neutral Received: from mail-pl1-x643.google.com (mail-pl1-x643.google.com [IPv6:2607:f8b0:4864:20::643]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 45WGKQ1K2TzDqZw for ; Sat, 22 Jun 2019 23:16:26 +1000 (AEST) Received: by mail-pl1-x643.google.com with SMTP id c14so4349748plo.0 for ; Sat, 22 Jun 2019 06:16:26 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=rfYqQJOk+rg2uqgQRpiWBqdnSRkNbuMsk4rf/Lyzoeg=; b=LoFLcSlPXl04Nmyh/8kYeL1KTMI09PK0lvgBDVsBCAgdoRMZTIytpMzgk2tF/qcpEo HaPjbtyBFYqH+PCEV4ndDNMatbkR7sTZ2AIYXyL6tU2lDdB4Uo9LD4OgK9Ew+iCIgzjl nqgc8Cwc4b03c/cfT7yH5a8cdSROrkDDd7lsIg6zDve8NA8po3dlb0/BcPBfUWoPHqIt j99h+HbBHP1X4XJrEvZTgwc742wfFxUQaHWxx32RMM5KBrMNuqZA0/sa+AZmCiiSpuVt DBxq9F1txL5VWpyIZZi/WFsI5PfD09l9VYq1IQnvEQxDIONOek7NKzD0dZGbCZiZWebN 4g6Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=rfYqQJOk+rg2uqgQRpiWBqdnSRkNbuMsk4rf/Lyzoeg=; b=El9+AU6W8XcQj0qz9Ym7m/VEwbcDsuJgrQ646jvvrbk33CTniV66qZFXeJOnrQlULN pSuEtVMtXFL4YVEkGo9VSkXd108tHOtkDL/LT+YFlXG6USN4MYJGQyrrC5TiTW8vuftm lD+xBLF4yKh6VGA5ewNCrC11DdXW3BYvWcHjLmTk79fmZmnzk/CTFTnt9msUh62Ul8IQ dpwduCrWyaTPDbJpSPF1h9gNkZ49K92NzSoegMkj14Y82BoghIE8vL5om2U+VcWN8Wac wtxMG7YUkoBLihh1kKSbCQTfHFsYvzJ/9eXLo1FvrloEOnCigyaoluxa6kgXBtlkSlu3 KowQ== X-Gm-Message-State: APjAAAXw0vCMf7v3g/VIlu1ivYN03cN8NF+24ssZ1pkTpuRwGehQbyKQ nv8kG3U+kg7ShT0GdxrnvYdpPu9VTuk= X-Google-Smtp-Source: APXvYqxpgAfZrN2g0XpQIvL6oE8q9Jo0sI5RwjEbroBnEm9KL5qJJGTF0vur622EgZgtiSd/U+LPfw== X-Received: by 2002:a17:902:2ae7:: with SMTP id j94mr52926257plb.270.1561209383611; Sat, 22 Jun 2019 06:16:23 -0700 (PDT) Received: from bobo.ozlabs.ibm.com ([1.144.136.2]) by smtp.gmail.com with ESMTPSA id n1sm5192471pgv.15.2019.06.22.06.16.21 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Sat, 22 Jun 2019 06:16:23 -0700 (PDT) From: Nicholas Piggin To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH v3 07/25] powerpc/64s/exception: merge KVM handler and skip variants Date: Sat, 22 Jun 2019 23:15:17 +1000 Message-Id: <20190622131535.20996-8-npiggin@gmail.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20190622131535.20996-1-npiggin@gmail.com> References: <20190622131535.20996-1-npiggin@gmail.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Nicholas Piggin Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" Conditionally expand the skip case if it is specified. No generated code change. Signed-off-by: Nicholas Piggin --- arch/powerpc/include/asm/exception-64s.h | 28 +++++++++--------------- arch/powerpc/include/asm/head-64.h | 8 +++---- arch/powerpc/kernel/exceptions-64s.S | 2 +- 3 files changed, 15 insertions(+), 23 deletions(-) diff --git a/arch/powerpc/include/asm/exception-64s.h b/arch/powerpc/include/asm/exception-64s.h index 74ddcb37156c..737c37d1df4b 100644 --- a/arch/powerpc/include/asm/exception-64s.h +++ b/arch/powerpc/include/asm/exception-64s.h @@ -431,26 +431,17 @@ END_FTR_SECTION_NESTED(ftr,ftr,943) .endif .endm -.macro KVM_HANDLER area, hsrr, n +.macro KVM_HANDLER area, hsrr, n, skip + .if \skip + cmpwi r10,KVM_GUEST_MODE_SKIP + beq 89f + .else BEGIN_FTR_SECTION_NESTED(947) ld r10,\area+EX_CFAR(r13) std r10,HSTATE_CFAR(r13) END_FTR_SECTION_NESTED(CPU_FTR_CFAR,CPU_FTR_CFAR,947) - BEGIN_FTR_SECTION_NESTED(948) - ld r10,\area+EX_PPR(r13) - std r10,HSTATE_PPR(r13) - END_FTR_SECTION_NESTED(CPU_FTR_HAS_PPR,CPU_FTR_HAS_PPR,948) - ld r10,\area+EX_R10(r13) - std r12,HSTATE_SCRATCH0(r13) - sldi r12,r9,32 - ori r12,r12,(\n) - /* This reloads r9 before branching to kvmppc_interrupt */ - __BRANCH_TO_KVM_EXIT(\area, kvmppc_interrupt) -.endm + .endif -.macro KVM_HANDLER_SKIP area, hsrr, n - cmpwi r10,KVM_GUEST_MODE_SKIP - beq 89f BEGIN_FTR_SECTION_NESTED(948) ld r10,\area+EX_PPR(r13) std r10,HSTATE_PPR(r13) @@ -461,6 +452,8 @@ END_FTR_SECTION_NESTED(ftr,ftr,943) ori r12,r12,(\n) /* This reloads r9 before branching to kvmppc_interrupt */ __BRANCH_TO_KVM_EXIT(\area, kvmppc_interrupt) + + .if \skip 89: mtocrf 0x80,r9 ld r9,\area+EX_R9(r13) ld r10,\area+EX_R10(r13) @@ -469,14 +462,13 @@ END_FTR_SECTION_NESTED(ftr,ftr,943) .else b kvmppc_skip_interrupt .endif + .endif .endm #else .macro KVMTEST hsrr, n .endm -.macro KVM_HANDLER area, hsrr, n -.endm -.macro KVM_HANDLER_SKIP area, hsrr, n +.macro KVM_HANDLER area, hsrr, n, skip .endm #endif diff --git a/arch/powerpc/include/asm/head-64.h b/arch/powerpc/include/asm/head-64.h index 4767d6c7b8fa..518d9758b41e 100644 --- a/arch/powerpc/include/asm/head-64.h +++ b/arch/powerpc/include/asm/head-64.h @@ -387,22 +387,22 @@ end_##sname: #define TRAMP_KVM(area, n) \ TRAMP_KVM_BEGIN(do_kvm_##n); \ - KVM_HANDLER area, EXC_STD, n + KVM_HANDLER area, EXC_STD, n, 0 #define TRAMP_KVM_SKIP(area, n) \ TRAMP_KVM_BEGIN(do_kvm_##n); \ - KVM_HANDLER_SKIP area, EXC_STD, n + KVM_HANDLER area, EXC_STD, n, 1 /* * HV variant exceptions get the 0x2 bit added to their trap number. */ #define TRAMP_KVM_HV(area, n) \ TRAMP_KVM_BEGIN(do_kvm_H##n); \ - KVM_HANDLER area, EXC_HV, n + 0x2 + KVM_HANDLER area, EXC_HV, n + 0x2, 0 #define TRAMP_KVM_HV_SKIP(area, n) \ TRAMP_KVM_BEGIN(do_kvm_H##n); \ - KVM_HANDLER_SKIP area, EXC_HV, n + 0x2 + KVM_HANDLER area, EXC_HV, n + 0x2, 1 #define EXC_COMMON(name, realvec, hdlr) \ EXC_COMMON_BEGIN(name); \ diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S index fe6242453f62..26d1873085b6 100644 --- a/arch/powerpc/kernel/exceptions-64s.S +++ b/arch/powerpc/kernel/exceptions-64s.S @@ -1063,7 +1063,7 @@ TRAMP_KVM_BEGIN(do_kvm_0xc00) SET_SCRATCH0(r10) std r9,PACA_EXGEN+EX_R9(r13) mfcr r9 - KVM_HANDLER PACA_EXGEN, EXC_STD, 0xc00 + KVM_HANDLER PACA_EXGEN, EXC_STD, 0xc00, 0 #endif -- 2.20.1