From patchwork Thu Dec 30 12:35:23 2021 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anup Patel X-Patchwork-Id: 12701431 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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (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 A58DDC4332F for ; Thu, 30 Dec 2021 12:52:35 +0000 (UTC) Received: from localhost ([::1]:52180 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1n2uv4-0000sx-Lw for qemu-devel@archiver.kernel.org; Thu, 30 Dec 2021 07:52:34 -0500 Received: from eggs.gnu.org ([209.51.188.92]:53984) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1n2ufH-00024w-Gf for qemu-devel@nongnu.org; Thu, 30 Dec 2021 07:36:16 -0500 Received: from [2607:f8b0:4864:20::1030] (port=51749 helo=mail-pj1-x1030.google.com) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1n2ufF-0003HD-Oh for qemu-devel@nongnu.org; Thu, 30 Dec 2021 07:36:15 -0500 Received: by mail-pj1-x1030.google.com with SMTP id v16so21138675pjn.1 for ; Thu, 30 Dec 2021 04:36:13 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=brainfault-org.20210112.gappssmtp.com; s=20210112; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=QFgpcQk9yPb/M24/zGjp09JbmqwVWwXmYD0L6ad601A=; b=reFfOOQvCogLpZ40s5wMlvKmetN85DjXo8iK5JLi0jMyrFlALwtBl02S9r1Bz56YW+ +rpkMmoQkLo2P3grvCd/ck2YS+GCKNyuBtPNrMXCAYG4jx8owpUP42YD8fQAxCNZdgL7 e21he4fcTLOIYHVwkFvJCiAdM0vgR3gGtGAXH7V6knficJlHyym0yQbc3fleW1k0O1OD eFjhCxPv4Jnm0q44SBUE5NEIqHBNvWatUqWaQG5v+KS5LV/RJx6qTnwTP41r88z5k+so /MhkrLMYyPgSbQd7MXp7Ohz3kPaBSYkn2w4uH3cUBp6GseZ9wFQzwfYYuBzeJWG+2h4m FEEA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:from:to:cc:subject:date:message-id:in-reply-to :references:mime-version:content-transfer-encoding; bh=QFgpcQk9yPb/M24/zGjp09JbmqwVWwXmYD0L6ad601A=; b=Eg6cWFG6CuPsJgHkX+sm7vMcaeX684IQHZFk3IIBl54bFprtBk2q5l2GfjddNk/gZ9 IcE6SeNLzHHgxeb9x9VcdSgIgoZrsivYgWGr+ck6zIJw5v7BKNSOwve5/jBmwScsV4vT 3MNO7StzIIVH3CbKWeVH/RaTVnP8d1Mbl2JFfTlK4+oFhhMTmuuXQAZTEfujrZcgK6Fd HZl7CBnv+4xc5MDGPW3/PkCGT6RXuVmzNfZTkCVdj2g2ttr69yiy3UBNuUzXja2G3vIE Hu6QHhhXsIYal/0v8qqCblEjjSsWB7aBMNNYXBC0kBkTe9l9g3O+P8dIRyox31nrAPtk PkHQ== X-Gm-Message-State: AOAM530Q0b5Ok8bYCadmMqs1ZVAe0uVauo/A5D/qZdbn7WiknBpBCnzo W6Oy/UYvuXqxE/s0Z7DLUaGsUg== X-Google-Smtp-Source: ABdhPJxtuM3qNlSMhXHUBXniVVPN1gz4vm1vKpHBtJz0UmSI0rA96wi6Z2dIwZn6BRyY9OOS9M0ZvQ== X-Received: by 2002:a17:902:bc49:b0:149:868:9a1e with SMTP id t9-20020a170902bc4900b0014908689a1emr30469499plz.115.1640867772497; Thu, 30 Dec 2021 04:36:12 -0800 (PST) Received: from localhost.localdomain ([171.61.71.9]) by smtp.gmail.com with ESMTPSA id a3sm28588348pfv.47.2021.12.30.04.36.09 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 30 Dec 2021 04:36:11 -0800 (PST) From: Anup Patel To: Peter Maydell , Palmer Dabbelt , Alistair Francis , Sagar Karandikar Subject: [PATCH v6 07/23] target/riscv: Add defines for AIA CSRs Date: Thu, 30 Dec 2021 18:05:23 +0530 Message-Id: <20211230123539.52786-8-anup@brainfault.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20211230123539.52786-1-anup@brainfault.org> References: <20211230123539.52786-1-anup@brainfault.org> MIME-Version: 1.0 X-Host-Lookup-Failed: Reverse DNS lookup failed for 2607:f8b0:4864:20::1030 (failed) Received-SPF: none client-ip=2607:f8b0:4864:20::1030; envelope-from=anup@brainfault.org; helo=mail-pj1-x1030.google.com X-Spam_score_int: 8 X-Spam_score: 0.8 X-Spam_bar: / X-Spam_report: (0.8 / 5.0 requ) DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RDNS_NONE=0.793, SPF_HELO_NONE=0.001, SPF_NONE=0.001 autolearn=no autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: qemu-riscv@nongnu.org, Anup Patel , qemu-devel@nongnu.org, Alistair Francis , Atish Patra , Bin Meng Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" From: Anup Patel The RISC-V AIA specification extends RISC-V local interrupts and introduces new CSRs. This patch adds defines for the new AIA CSRs. Signed-off-by: Anup Patel Signed-off-by: Anup Patel Reviewed-by: Alistair Francis Reviewed-by: Frank Chang --- target/riscv/cpu_bits.h | 127 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 127 insertions(+) diff --git a/target/riscv/cpu_bits.h b/target/riscv/cpu_bits.h index f32159a19d..841c289c5d 100644 --- a/target/riscv/cpu_bits.h +++ b/target/riscv/cpu_bits.h @@ -168,6 +168,31 @@ #define CSR_MTVAL 0x343 #define CSR_MIP 0x344 +/* Machine-Level Window to Indirectly Accessed Registers (AIA) */ +#define CSR_MISELECT 0x350 +#define CSR_MIREG 0x351 + +/* Machine-Level Interrupts (AIA) */ +#define CSR_MTOPI 0xfb0 + +/* Machine-Level IMSIC Interface (AIA) */ +#define CSR_MSETEIPNUM 0x358 +#define CSR_MCLREIPNUM 0x359 +#define CSR_MSETEIENUM 0x35a +#define CSR_MCLREIENUM 0x35b +#define CSR_MTOPEI 0x35c + +/* 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 + /* Supervisor Trap Setup */ #define CSR_SSTATUS 0x100 #define CSR_SEDELEG 0x102 @@ -187,6 +212,24 @@ #define CSR_SPTBR 0x180 #define CSR_SATP 0x180 +/* Supervisor-Level Window to Indirectly Accessed Registers (AIA) */ +#define CSR_SISELECT 0x150 +#define CSR_SIREG 0x151 + +/* Supervisor-Level Interrupts (AIA) */ +#define CSR_STOPI 0xdb0 + +/* Supervisor-Level IMSIC Interface (AIA) */ +#define CSR_SSETEIPNUM 0x158 +#define CSR_SCLREIPNUM 0x159 +#define CSR_SSETEIENUM 0x15a +#define CSR_SCLREIENUM 0x15b +#define CSR_STOPEI 0x15c + +/* Supervisor-Level High-Half CSRs (AIA) */ +#define CSR_SIEH 0x114 +#define CSR_SIPH 0x154 + /* Hpervisor CSRs */ #define CSR_HSTATUS 0x600 #define CSR_HEDELEG 0x602 @@ -217,6 +260,35 @@ #define CSR_MTINST 0x34a #define CSR_MTVAL2 0x34b +/* 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_VSTOPI 0xeb0 + +/* VS-Level IMSIC Interface (H-extension with AIA) */ +#define CSR_VSSETEIPNUM 0x258 +#define CSR_VSCLREIPNUM 0x259 +#define CSR_VSSETEIENUM 0x25a +#define CSR_VSCLREIENUM 0x25b +#define CSR_VSTOPEI 0x25c + +/* 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 + /* Enhanced Physical Memory Protection (ePMP) */ #define CSR_MSECCFG 0x747 #define CSR_MSECCFGH 0x757 @@ -629,4 +701,59 @@ typedef enum RISCVException { #define UMTE_U_PM_INSN U_PM_INSN #define UMTE_MASK (UMTE_U_PM_ENABLE | MMTE_U_PM_CURRENT | UMTE_U_PM_INSN) +/* MISELECT, SISELECT, and VSISELECT bits (AIA) */ +#define ISELECT_IPRIO0 0x30 +#define ISELECT_IPRIO15 0x3f +#define ISELECT_IMSIC_EIDELIVERY 0x70 +#define ISELECT_IMSIC_EITHRESHOLD 0x72 +#define ISELECT_IMSIC_EIP0 0x80 +#define ISELECT_IMSIC_EIP63 0xbf +#define ISELECT_IMSIC_EIE0 0xc0 +#define ISELECT_IMSIC_EIE63 0xff +#define ISELECT_IMSIC_FIRST ISELECT_IMSIC_EIDELIVERY +#define ISELECT_IMSIC_LAST ISELECT_IMSIC_EIE63 +#define ISELECT_MASK 0x1ff + +/* Dummy [M|S|VS]ISELECT value for emulating [M|S|VS]TOPEI CSRs */ +#define ISELECT_IMSIC_TOPEI (ISELECT_MASK + 1) + +/* IMSIC bits (AIA) */ +#define IMSIC_TOPEI_IID_SHIFT 16 +#define IMSIC_TOPEI_IID_MASK 0x7ff +#define IMSIC_TOPEI_IPRIO_MASK 0x7ff +#define IMSIC_EIPx_BITS 32 +#define IMSIC_EIEx_BITS 32 + +/* MTOPI and STOPI bits (AIA) */ +#define TOPI_IID_SHIFT 16 +#define TOPI_IID_MASK 0xfff +#define TOPI_IPRIO_MASK 0xff + +/* Interrupt priority bits (AIA) */ +#define IPRIO_IRQ_BITS 8 +#define IPRIO_MMAXIPRIO 255 +#define IPRIO_DEFAULT_MMAXIPRIO 15 +#define IPRIO_DEFAULT_VS (IPRIO_DEFAULT_MMAXIPRIO - 4) +#define IPRIO_DEFAULT_SGEXT (IPRIO_DEFAULT_MMAXIPRIO - 5) +#define IPRIO_DEFAULT_S (IPRIO_DEFAULT_MMAXIPRIO - 6) +#define IPRIO_DEFAULT_M (IPRIO_DEFAULT_MMAXIPRIO - 7) +#define IPRIO_DEFAULT_U(_i) (((_i) >> 4) & 0x3) +#define IPRIO_DEFAULT_L(_i) ((_i) & 0xf) +#define IPRIO_DEFAULT_16_23(_i) \ + (IPRIO_DEFAULT_MMAXIPRIO - (IPRIO_DEFAULT_L(_i) >> 1)) +#define IPRIO_DEFAULT_24_31(_i) \ + (IPRIO_DEFAULT_MMAXIPRIO - (4 + (IPRIO_DEFAULT_L(_i) >> 1))) +#define IPRIO_DEFAULT_32_47(_i) \ + (IPRIO_DEFAULT_MMAXIPRIO - (IPRIO_DEFAULT_L(_i) >> 2)) +#define IPRIO_DEFAULT_48_63(_i) \ + (IPRIO_DEFAULT_MMAXIPRIO - (8 + (IPRIO_DEFAULT_L(_i) >> 2))) + +/* HVICTL bits (AIA) */ +#define HVICTL_VTI 0x40000000 +#define HVICTL_IID 0x0fff0000 +#define HVICTL_IPRIOM 0x00000100 +#define HVICTL_IPRIO 0x000000ff +#define HVICTL_VALID_MASK \ + (HVICTL_VTI | HVICTL_IID | HVICTL_IPRIOM | HVICTL_IPRIO) + #endif