From patchwork Sat Jan 28 07:27:31 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Anup Patel X-Patchwork-Id: 13119715 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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id D2743C38142 for ; Sat, 28 Jan 2023 07:28:00 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S233409AbjA1H17 (ORCPT ); Sat, 28 Jan 2023 02:27:59 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:59194 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S233556AbjA1H1z (ORCPT ); Sat, 28 Jan 2023 02:27:55 -0500 Received: from mail-pl1-x62e.google.com (mail-pl1-x62e.google.com [IPv6:2607:f8b0:4864:20::62e]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B495F199F6 for ; Fri, 27 Jan 2023 23:27:52 -0800 (PST) Received: by mail-pl1-x62e.google.com with SMTP id p24so7041589plw.11 for ; Fri, 27 Jan 2023 23:27:52 -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=rWz65mFu4SpNgBKuchq+hZ/4RmJtNYXBnYHJ3KOFc1U=; b=X57n/zp66UtjvlWSyddZei2aSknXthJDMK9xiiS+WEpqZ3rr51OiSxi5DjGm8SnR3e Ijocyn7HAt5kKJ3tJGUVnkxR1Nq6Jr1diiJXP48nYzwVrPhV/pl0npPK/ZVMhJ9bbOm3 K2U7C6l2/NHeZOjHAWcE4qmYHsJKwWPzJ3lZoAVUfiSv41VlP5kobL8gdnR+Q1AC3ZP+ NSZeVxxJUhBw426Vjyafs4+SIz6UgSl+ijIbpxcIhQOCc5kLvBMD9+6lROguXgz8ihtY 88kddPBOHS9M/e2zYRJZ9hhv12VQjGmNnyMuFae0No6rOu8SO0Di1ESSODDXyT6iEDB1 xBVA== 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=rWz65mFu4SpNgBKuchq+hZ/4RmJtNYXBnYHJ3KOFc1U=; b=Co7GtZgs5vBQSZojWDPZO8H9sX7N3gYRql4eSqeShf9GuUK9wsTWlpx0x+U1OOmRLI gUW1qnSEQjY3ThF2+K0NWF9hcUS9Z6oeH3b3Gr7En9lAxcwA4AU3nEKVoeajHGrZnmfy U4lS86n5GfBk80Enk5Y8wCC3otzJOkG3hGVAe2Ar7jW+3WT5QxS9DWA0zT7M4a3aXeYS +XzZ1udVduT9Zo8E1B0GGtMlo4orTMt5NYGTFFmDC81Wz6KyRcUFPI7NAx6QMHBdHBLJ bPRt3Azzly5CExRl3FFgVwSBpZ2tAErN897ziXY7RXbQ/kRL9zQoEz+lE/97Ew0dU57q 3LGg== X-Gm-Message-State: AFqh2kr1CfCFKCXrpZXB50jRVgUFD7hcg8lAX7GDZ7aSbzhCBQ9utEsI /XtI4pahI0joYzu1uqzxW8SsqA== X-Google-Smtp-Source: AMrXdXsHWFlCQA4W/tdpuX+4ePkLW7N9Scjn48mFDOO98hwvlx1MMdPaJAgXH+ylyEsGI6GB5pnI7Q== X-Received: by 2002:a17:903:2306:b0:193:3540:c54d with SMTP id d6-20020a170903230600b001933540c54dmr56913851plh.26.1674890871800; Fri, 27 Jan 2023 23:27:51 -0800 (PST) Received: from anup-ubuntu-vm.localdomain ([103.97.165.210]) by smtp.gmail.com with ESMTPSA id jh19-20020a170903329300b00194ac38bc86sm753132plb.131.2023.01.27.23.27.47 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 27 Jan 2023 23:27:51 -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 , Conor Dooley Subject: [PATCH v2 1/7] RISC-V: Add AIA related CSR defines Date: Sat, 28 Jan 2023 12:57:31 +0530 Message-Id: <20230128072737.2995881-2-apatel@ventanamicro.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20230128072737.2995881-1-apatel@ventanamicro.com> References: <20230128072737.2995881-1-apatel@ventanamicro.com> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.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: Conor Dooley Reviewed-by: Andrew Jones Reviewed-by: Atish Patra Acked-by: Palmer Dabbelt --- arch/riscv/include/asm/csr.h | 95 +++++++++++++++++++++++++++++++++++- 1 file changed, 94 insertions(+), 1 deletion(-) diff --git a/arch/riscv/include/asm/csr.h b/arch/riscv/include/asm/csr.h index 0e571f6483d9..3c8d68152bce 100644 --- a/arch/riscv/include/asm/csr.h +++ b/arch/riscv/include/asm/csr.h @@ -7,7 +7,7 @@ #define _ASM_RISCV_CSR_H #include -#include +#include /* Status register flags */ #define SR_SIE _AC(0x00000002, UL) /* Supervisor Interrupt Enable */ @@ -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 GENMASK((IRQ_LOCAL_MAX - 1), 0) /* 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 GENMASK(11, 0) +#define TOPI_IPRIO_MASK GENMASK(7, 0) +#define TOPI_IPRIO_BITS 8 + +#define TOPEI_ID_SHIFT 16 +#define TOPEI_ID_MASK GENMASK(10, 0) +#define TOPEI_PRIO_MASK GENMASK(10, 0) + +#define ISELECT_IPRIO0 0x30 +#define ISELECT_IPRIO15 0x3f +#define ISELECT_MASK GENMASK(8, 0) + +#define HVICTL_VTI BIT(30) +#define HVICTL_IID GENMASK(27, 16) +#define HVICTL_IID_SHIFT 16 +#define HVICTL_DPR BIT(9) +#define HVICTL_IPRIOM BIT(8) +#define HVICTL_IPRIO GENMASK(7, 0) + /* 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