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=-15.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,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 7169BC433DB for ; Sat, 2 Jan 2021 13:23:40 +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 CE9B0224D2 for ; Sat, 2 Jan 2021 13:23:39 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org CE9B0224D2 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 bilbo.ozlabs.org (lists.ozlabs.org [IPv6:2401:3900:2:1::3]) by lists.ozlabs.org (Postfix) with ESMTP id 4D7MzF0XBszDrQM for ; Sun, 3 Jan 2021 00:23:37 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=gmail.com (client-ip=2607:f8b0:4864:20::62a; helo=mail-pl1-x62a.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.a=rsa-sha256 header.s=20161025 header.b=fj1DmPNW; dkim-atps=neutral Received: from mail-pl1-x62a.google.com (mail-pl1-x62a.google.com [IPv6:2607:f8b0:4864:20::62a]) (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 4D7Lj86YwgzDqJY for ; Sat, 2 Jan 2021 23:26:20 +1100 (AEDT) Received: by mail-pl1-x62a.google.com with SMTP id t6so12054871plq.1 for ; Sat, 02 Jan 2021 04:26:20 -0800 (PST) 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=/ni/D9khR0eQz0INnFGUEyIliDMWoFa5F/AUgCFbEHs=; b=fj1DmPNW7/+hv2bvlSUrj1Hj+MZ0RUaPlvOq00sFMldH62gBlL2H6UNq0hBKznhdXL 69HFPT7udU48zJz+Ps13uoaQQnmTMCk/9h2NNYFSOIr+UsfExphQ/fwcJyXWCactQx/q VhZIJHE7+z0L1ShD4CG6iEKSBFUPNpuI6MctmvtxqCfYJvCd+rjIsBjopHJOJWizFdGI 9kDpsDHKEKtzMEFXtQ/SPNj0Ojyz/sr7k1bGGgLdsaOISYsQgO6RsqCz+T9DxMp6GbhC XyC/z+4Zmj+qgaBritH+Ui+1kXrs8FderdKyGvT5sFqtrcq4gtq7VFiPFrycNrY9ai2E dLfg== 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=/ni/D9khR0eQz0INnFGUEyIliDMWoFa5F/AUgCFbEHs=; b=U4YV8ZXuI+f9Dfp6m1eFgshA44MvgJfhc4MN6JdYNP7hSx795soxEZOGUtW7WW6Czk NhpCR5iFElCaA8NjGRL7j4yUdwQo3NOQbUD92UQvUxqQqjM1YXQuvNMeWypTJirQzLub ScgsohOrIjIy3ts9X7Sds5gP5zBhDiNyauUnPK+GzOGQie8vhIMHsARVNyD3pEe2m99V NZ9d8YrXs4F6ImTylRg1we02NuBtVaJT9PkVde6WiJbWpoitzK/NpXRJjKSn3Vg0PhHa bUe8LtRQ9vW0PK5d1xAr0C5r3+qRGp0bKTxxc6DdnjWPpi8hIjNvOY7ZAZaHfWKe5MF1 WC/g== X-Gm-Message-State: AOAM532g/o7mEj38t45buzYVOP9to7ZcZPLuUP0Ss2npETx6RtRTLi1v S00OphGeGXQCj6ndfUom9soP7dfgCVI= X-Google-Smtp-Source: ABdhPJzVYQvHa7fbPUcxF5t7KwOh51cnSuixMoZZroP8DgiL0moVlm87NJvqAUuXA1zcNX7bODYz9Q== X-Received: by 2002:a17:90a:764f:: with SMTP id s15mr21057908pjl.98.1609590377157; Sat, 02 Jan 2021 04:26:17 -0800 (PST) Received: from bobo.ozlabs.ibm.com (193-116-97-30.tpgi.com.au. [193.116.97.30]) by smtp.gmail.com with ESMTPSA id h4sm58501413pgp.8.2021.01.02.04.26.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 02 Jan 2021 04:26:16 -0800 (PST) From: Nicholas Piggin To: linuxppc-dev@lists.ozlabs.org Subject: [PATCH v4 20/21] powerpc/64s: runlatch interrupt handling in C Date: Sat, 2 Jan 2021 22:25:07 +1000 Message-Id: <20210102122508.1950592-21-npiggin@gmail.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20210102122508.1950592-1-npiggin@gmail.com> References: <20210102122508.1950592-1-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" There is no need for this to be in asm, use the new intrrupt entry wrapper. Signed-off-by: Nicholas Piggin --- arch/powerpc/include/asm/interrupt.h | 7 +++++++ arch/powerpc/kernel/exceptions-64s.S | 18 ------------------ 2 files changed, 7 insertions(+), 18 deletions(-) diff --git a/arch/powerpc/include/asm/interrupt.h b/arch/powerpc/include/asm/interrupt.h index db89ecfef762..9c16e9a48df6 100644 --- a/arch/powerpc/include/asm/interrupt.h +++ b/arch/powerpc/include/asm/interrupt.h @@ -6,6 +6,7 @@ #include #include #include +#include struct interrupt_state { #ifdef CONFIG_PPC_BOOK3E_64 @@ -84,6 +85,12 @@ static inline void interrupt_exit_prepare(struct pt_regs *regs, struct interrupt static inline void interrupt_async_enter_prepare(struct pt_regs *regs, struct interrupt_state *state) { +#ifdef CONFIG_PPC_BOOK3S_64 + if (cpu_has_feature(CPU_FTR_CTRL) && + !test_thread_local_flags(_TLF_RUNLATCH)) + __ppc64_runlatch_on(); +#endif + interrupt_enter_prepare(regs, state); irq_enter(); } diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S index f9a2751570ef..05a358559274 100644 --- a/arch/powerpc/kernel/exceptions-64s.S +++ b/arch/powerpc/kernel/exceptions-64s.S @@ -692,14 +692,6 @@ END_FTR_SECTION_IFSET(CPU_FTR_CFAR) ld r1,GPR1(r1) .endm -#define RUNLATCH_ON \ -BEGIN_FTR_SECTION \ - ld r3, PACA_THREAD_INFO(r13); \ - ld r4,TI_LOCAL_FLAGS(r3); \ - andi. r0,r4,_TLF_RUNLATCH; \ - beql ppc64_runlatch_on_trampoline; \ -END_FTR_SECTION_IFSET(CPU_FTR_CTRL) - /* * When the idle code in power4_idle puts the CPU into NAP mode, * it has to do so in a loop, and relies on the external interrupt @@ -1582,7 +1574,6 @@ EXC_VIRT_END(hardware_interrupt, 0x4500, 0x100) EXC_COMMON_BEGIN(hardware_interrupt_common) GEN_COMMON hardware_interrupt FINISH_NAP - RUNLATCH_ON addi r3,r1,STACK_FRAME_OVERHEAD bl do_IRQ b interrupt_return @@ -1768,7 +1759,6 @@ EXC_VIRT_END(decrementer, 0x4900, 0x80) EXC_COMMON_BEGIN(decrementer_common) GEN_COMMON decrementer FINISH_NAP - RUNLATCH_ON addi r3,r1,STACK_FRAME_OVERHEAD bl timer_interrupt b interrupt_return @@ -1854,7 +1844,6 @@ EXC_VIRT_END(doorbell_super, 0x4a00, 0x100) EXC_COMMON_BEGIN(doorbell_super_common) GEN_COMMON doorbell_super FINISH_NAP - RUNLATCH_ON addi r3,r1,STACK_FRAME_OVERHEAD #ifdef CONFIG_PPC_DOORBELL bl doorbell_exception @@ -2209,7 +2198,6 @@ EXC_COMMON_BEGIN(hmi_exception_early_common) EXC_COMMON_BEGIN(hmi_exception_common) GEN_COMMON hmi_exception FINISH_NAP - RUNLATCH_ON addi r3,r1,STACK_FRAME_OVERHEAD bl handle_hmi_exception b interrupt_return @@ -2239,7 +2227,6 @@ EXC_VIRT_END(h_doorbell, 0x4e80, 0x20) EXC_COMMON_BEGIN(h_doorbell_common) GEN_COMMON h_doorbell FINISH_NAP - RUNLATCH_ON addi r3,r1,STACK_FRAME_OVERHEAD #ifdef CONFIG_PPC_DOORBELL bl doorbell_exception @@ -2273,7 +2260,6 @@ EXC_VIRT_END(h_virt_irq, 0x4ea0, 0x20) EXC_COMMON_BEGIN(h_virt_irq_common) GEN_COMMON h_virt_irq FINISH_NAP - RUNLATCH_ON addi r3,r1,STACK_FRAME_OVERHEAD bl do_IRQ b interrupt_return @@ -2320,7 +2306,6 @@ EXC_VIRT_END(performance_monitor, 0x4f00, 0x20) EXC_COMMON_BEGIN(performance_monitor_common) GEN_COMMON performance_monitor FINISH_NAP - RUNLATCH_ON addi r3,r1,STACK_FRAME_OVERHEAD bl performance_monitor_exception b interrupt_return @@ -3035,9 +3020,6 @@ kvmppc_skip_Hinterrupt: * come here. */ -EXC_COMMON_BEGIN(ppc64_runlatch_on_trampoline) - b __ppc64_runlatch_on - USE_FIXED_SECTION(virt_trampolines) /* * All code below __end_interrupts is treated as soft-masked. If -- 2.23.0