From patchwork Thu Jan 12 14:02:58 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anup Patel X-Patchwork-Id: 13098047 X-Patchwork-Delegate: palmer@dabbelt.com 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 CB5DAC54EBD for ; Thu, 12 Jan 2023 14:03:39 +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:List-Subscribe:List-Help:List-Post: List-Archive:List-Unsubscribe:List-Id:MIME-Version:References:In-Reply-To: Message-Id:Date:Subject:Cc:To:From:Reply-To:Content-ID:Content-Description: Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID: List-Owner; bh=rFfXGLsQFr4CRCKOl2W9PJETFZvut5ilWv0eYou+Ur0=; b=tW1ammXjQtur1J tcnhTp93xzqUI46dfETafOCTbhYLAKQoopjh00qNUZqs0hsmdctINHfgFKI4cr47klKKtWFb9Xo04 j44IGFh35r0+uAZd8ALeTEz6ZEZwRvZgCdhz29utCwQ01coQ/ORUlqA9xFrGb7p5PLjRMqw71K5eQ h8rt39ncWuX3Q5Bcv7WLJdRogAFiGDTAo4fUU7U2NUoYN5YoIwG8Na28oruFz6IJyhJk0KmCAFJ/4 76Vkt6/oyySoM1pepeSPtekqotoWZc3vyTNzc0jE/rzKt62BMHNWCrsk3VWifgnqUqfb4CPNEi3mc 3WKWktOF9sifie0Rmu8A==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.94.2 #2 (Red Hat Linux)) id 1pFyB3-00FHZp-1D; Thu, 12 Jan 2023 14:03:33 +0000 Received: from mail-pj1-x102c.google.com ([2607:f8b0:4864:20::102c]) by bombadil.infradead.org with esmtps (Exim 4.94.2 #2 (Red Hat Linux)) id 1pFyB0-00FHXU-21 for linux-riscv@lists.infradead.org; Thu, 12 Jan 2023 14:03:31 +0000 Received: by mail-pj1-x102c.google.com with SMTP id gz9-20020a17090b0ec900b002290bda1b07so727709pjb.1 for ; Thu, 12 Jan 2023 06:03:26 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ventanamicro.com; s=google; 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=IgHRkFPpyUb1zPgUZ8Z5/eq4ALXxizOkU21iNrwXDT4=; b=EAGSFs1hkLM765+88mQ0b4gLIqycLnieeWFPSGU2I8nhlEZQjS5zWlRmhMbWgKGfhX o3CvnOHM5wUmh+69nsVQ14zhVlxaSTx0/EKRIpIc6MfLFOpbM5/3xZCcKpv/JkFMO7V4 MsushEeJfjTxU6wfk5Kg6Q+mBHaFufUU1N41RcfkYiGY5a/pBTIdyAjrBgtDd0UhZ9TS vlErdKrAeF/4FyRrvURRxsLvLN6lLtEH24ImBmrV26vkp2JdH8V3b26uSjIvBBtX2QUS XLGkTmzGWLWz0P0si5a7YFT4MecJY/sxH5KM7qxZfOIXAR7ZruaFgf2JfUP6xHxWZaea W3/Q== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; 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=IgHRkFPpyUb1zPgUZ8Z5/eq4ALXxizOkU21iNrwXDT4=; b=tHP6uLjNWynOebCbRM09d7EiXs8JUoCdOPLhyG2KmzlPArGUGpRKh4AtgFVqkMGfsG Mhl9s/wdoMSPTnSRRICk7f+cVfGufko9iLUGnYkukyVxFqz8BaW/Xn1T69iiHrAnlZWV 9m0C1RZceWAsrqPvRMFcqLMCZi054IL/QCoa1JtwxkV/GD671+qzEE+PkbL6egzIOi4s hXGMZqB8qQYGN2ns8WXmrWPTWHvHHOrVSvWjOLdLTFuSVIWteRGPAWIIfP+xkANFYxwA XbhlP7JM9Ig1Lon0Yb+mocJ1mI9tOXt6TMDV113ZefLsG/JhwXWWVZ3bf3ufRDdDvd8n b7kw== X-Gm-Message-State: AFqh2koyLvZy01hC7FO1d29snqNbiK9gTtNouW1SW9C5Eepi+pdvNLmj AboLt2FY4K6pd4XCMF68vGSuEQ== X-Google-Smtp-Source: AMrXdXvVfqOdttUAhm3BBlUd33vNJ7jLX3PtRHk6qkzl6HU7bHbo3EQNB+e7PwLHWUiA88Uw94QgUg== X-Received: by 2002:a17:902:f544:b0:194:65c8:da70 with SMTP id h4-20020a170902f54400b0019465c8da70mr1199404plf.45.1673532205861; Thu, 12 Jan 2023 06:03:25 -0800 (PST) Received: from anup-ubuntu-vm.localdomain ([103.97.165.210]) by smtp.gmail.com with ESMTPSA id d11-20020a170902cecb00b001925016e34bsm12351455plg.79.2023.01.12.06.03.20 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 12 Jan 2023 06:03:25 -0800 (PST) From: Anup Patel To: Paolo Bonzini , Atish Patra Cc: Palmer Dabbelt , Paul Walmsley , Andrew Jones , Anup Patel , kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, Anup Patel Subject: [PATCH 1/7] RISC-V: Add AIA related CSR defines Date: Thu, 12 Jan 2023 19:32:58 +0530 Message-Id: <20230112140304.1830648-2-apatel@ventanamicro.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230112140304.1830648-1-apatel@ventanamicro.com> References: <20230112140304.1830648-1-apatel@ventanamicro.com> MIME-Version: 1.0 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20230112_060330_121684_86165276 X-CRM114-Status: UNSURE ( 8.02 ) X-CRM114-Notice: Please train this message. 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: , Sender: "linux-riscv" Errors-To: linux-riscv-bounces+linux-riscv=archiver.kernel.org@lists.infradead.org The RISC-V AIA specification improves handling per-HART local interrupts in a backward compatible manner. This patch adds defines for new RISC-V AIA CSRs. Signed-off-by: Anup Patel Reviewed-by: Andrew Jones --- arch/riscv/include/asm/csr.h | 93 ++++++++++++++++++++++++++++++++++++ 1 file changed, 93 insertions(+) diff --git a/arch/riscv/include/asm/csr.h b/arch/riscv/include/asm/csr.h index 0e571f6483d9..d608dac4b19f 100644 --- a/arch/riscv/include/asm/csr.h +++ b/arch/riscv/include/asm/csr.h @@ -73,7 +73,10 @@ #define IRQ_S_EXT 9 #define IRQ_VS_EXT 10 #define IRQ_M_EXT 11 +#define IRQ_S_GEXT 12 #define IRQ_PMU_OVF 13 +#define IRQ_LOCAL_MAX (IRQ_PMU_OVF + 1) +#define IRQ_LOCAL_MASK ((_AC(1, UL) << IRQ_LOCAL_MAX) - 1) /* Exception causes */ #define EXC_INST_MISALIGNED 0 @@ -156,6 +159,27 @@ (_AC(1, UL) << IRQ_S_TIMER) | \ (_AC(1, UL) << IRQ_S_EXT)) +/* AIA CSR bits */ +#define TOPI_IID_SHIFT 16 +#define TOPI_IID_MASK _AC(0xfff, UL) +#define TOPI_IPRIO_MASK _AC(0xff, UL) +#define TOPI_IPRIO_BITS 8 + +#define TOPEI_ID_SHIFT 16 +#define TOPEI_ID_MASK _AC(0x7ff, UL) +#define TOPEI_PRIO_MASK _AC(0x7ff, UL) + +#define ISELECT_IPRIO0 0x30 +#define ISELECT_IPRIO15 0x3f +#define ISELECT_MASK _AC(0x1ff, UL) + +#define HVICTL_VTI _AC(0x40000000, UL) +#define HVICTL_IID _AC(0x0fff0000, UL) +#define HVICTL_IID_SHIFT 16 +#define HVICTL_DPR _AC(0x00000200, UL) +#define HVICTL_IPRIOM _AC(0x00000100, UL) +#define HVICTL_IPRIO _AC(0x000000ff, UL) + /* xENVCFG flags */ #define ENVCFG_STCE (_AC(1, ULL) << 63) #define ENVCFG_PBMTE (_AC(1, ULL) << 62) @@ -250,6 +274,18 @@ #define CSR_STIMECMP 0x14D #define CSR_STIMECMPH 0x15D +/* Supervisor-Level Window to Indirectly Accessed Registers (AIA) */ +#define CSR_SISELECT 0x150 +#define CSR_SIREG 0x151 + +/* Supervisor-Level Interrupts (AIA) */ +#define CSR_STOPEI 0x15c +#define CSR_STOPI 0xdb0 + +/* Supervisor-Level High-Half CSRs (AIA) */ +#define CSR_SIEH 0x114 +#define CSR_SIPH 0x154 + #define CSR_VSSTATUS 0x200 #define CSR_VSIE 0x204 #define CSR_VSTVEC 0x205 @@ -279,8 +315,32 @@ #define CSR_HGATP 0x680 #define CSR_HGEIP 0xe12 +/* Virtual Interrupts and Interrupt Priorities (H-extension with AIA) */ +#define CSR_HVIEN 0x608 +#define CSR_HVICTL 0x609 +#define CSR_HVIPRIO1 0x646 +#define CSR_HVIPRIO2 0x647 + +/* VS-Level Window to Indirectly Accessed Registers (H-extension with AIA) */ +#define CSR_VSISELECT 0x250 +#define CSR_VSIREG 0x251 + +/* VS-Level Interrupts (H-extension with AIA) */ +#define CSR_VSTOPEI 0x25c +#define CSR_VSTOPI 0xeb0 + +/* Hypervisor and VS-Level High-Half CSRs (H-extension with AIA) */ +#define CSR_HIDELEGH 0x613 +#define CSR_HVIENH 0x618 +#define CSR_HVIPH 0x655 +#define CSR_HVIPRIO1H 0x656 +#define CSR_HVIPRIO2H 0x657 +#define CSR_VSIEH 0x214 +#define CSR_VSIPH 0x254 + #define CSR_MSTATUS 0x300 #define CSR_MISA 0x301 +#define CSR_MIDELEG 0x303 #define CSR_MIE 0x304 #define CSR_MTVEC 0x305 #define CSR_MENVCFG 0x30a @@ -297,6 +357,25 @@ #define CSR_MIMPID 0xf13 #define CSR_MHARTID 0xf14 +/* Machine-Level Window to Indirectly Accessed Registers (AIA) */ +#define CSR_MISELECT 0x350 +#define CSR_MIREG 0x351 + +/* Machine-Level Interrupts (AIA) */ +#define CSR_MTOPEI 0x35c +#define CSR_MTOPI 0xfb0 + +/* Virtual Interrupts for Supervisor Level (AIA) */ +#define CSR_MVIEN 0x308 +#define CSR_MVIP 0x309 + +/* Machine-Level High-Half CSRs (AIA) */ +#define CSR_MIDELEGH 0x313 +#define CSR_MIEH 0x314 +#define CSR_MVIENH 0x318 +#define CSR_MVIPH 0x319 +#define CSR_MIPH 0x354 + #ifdef CONFIG_RISCV_M_MODE # define CSR_STATUS CSR_MSTATUS # define CSR_IE CSR_MIE @@ -307,6 +386,13 @@ # define CSR_TVAL CSR_MTVAL # define CSR_IP CSR_MIP +# define CSR_IEH CSR_MIEH +# define CSR_ISELECT CSR_MISELECT +# define CSR_IREG CSR_MIREG +# define CSR_IPH CSR_MIPH +# define CSR_TOPEI CSR_MTOPEI +# define CSR_TOPI CSR_MTOPI + # define SR_IE SR_MIE # define SR_PIE SR_MPIE # define SR_PP SR_MPP @@ -324,6 +410,13 @@ # define CSR_TVAL CSR_STVAL # define CSR_IP CSR_SIP +# define CSR_IEH CSR_SIEH +# define CSR_ISELECT CSR_SISELECT +# define CSR_IREG CSR_SIREG +# define CSR_IPH CSR_SIPH +# define CSR_TOPEI CSR_STOPEI +# define CSR_TOPI CSR_STOPI + # define SR_IE SR_SIE # define SR_PIE SR_SPIE # define SR_PP SR_SPP