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 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 1160AC43458 for ; Wed, 1 Jul 2026 08:47:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lists.infradead.org; s=bombadil.20210309; h=Sender:List-Subscribe:List-Help :List-Post:List-Archive:List-Unsubscribe:List-Id:Cc:To:In-Reply-To:References :Message-Id:Content-Transfer-Encoding:Content-Type:MIME-Version:Subject:Date: From:Reply-To:Content-ID:Content-Description:Resent-Date:Resent-From: Resent-Sender:Resent-To:Resent-Cc:Resent-Message-ID:List-Owner; bh=gg1b4NvG9irnTlONKFumTIckFqfflTt6uFIpf+8fltI=; b=EMTLF19rk18sscMyexkpUNNwUO 0PIL6AXtMqcKGy0TCrvAGODEpT2dxRyA16AmsQVVTeVGaV4ycfO0aKHYv+n1Sg1Ksbx93Dl9f0/hf gddVmHf5fUPY+PG35pWDcT3y4bvo5x/1h5oznTvM+sdhsGmemK2Y413EcrIsvxJB32dP8/BzYAuHZ 4P+JCT1zrZ5NjA6dELmVajXqHw+OLc/egLTxgYvNn7ch/5ZEPyJr5Hz9CKev6kjQ3L9CS0+n8HuCD QZ+rQpsb1BclCPlqho8Q7YwkouY6Zzyp8UNrjk9xMroIftBNv7yDsb99t7jN/QceZ64xpavJwjfD9 0Oo0GSvw==; Received: from localhost ([::1] helo=bombadil.infradead.org) by bombadil.infradead.org with esmtp (Exim 4.99.1 #2 (Red Hat Linux)) id 1weqbS-000000013yQ-35fl; Wed, 01 Jul 2026 08:47:30 +0000 Received: from out-172.mta1.migadu.com ([95.215.58.172]) by bombadil.infradead.org with esmtps (Exim 4.99.1 #2 (Red Hat Linux)) id 1weqbQ-000000013w3-0q1T for linux-arm-kernel@lists.infradead.org; Wed, 01 Jul 2026 08:47:29 +0000 X-Report-Abuse: Please report any abuse attempt to abuse@migadu.com and include these headers. DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.dev; s=key1; t=1782895645; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=gg1b4NvG9irnTlONKFumTIckFqfflTt6uFIpf+8fltI=; b=mGAu0O5p3zzJMOJu8qMNFgcSKrgX6osZU3GAoSLRlOMN10orW6+CZfaU9yfENWqMHTFSsP 8YFkH7Qt9+3dgkbpQpQdYAn0ouLmDSJtQMJCltLHCnJTEOrwsW4eaaCCpx4LALgw1sHTzt 1Qk1rPXD5165bCku5pIxwAFiDvCL690= From: Atish Patra Date: Wed, 01 Jul 2026 01:46:50 -0700 Subject: [PATCH v8 02/22] RISC-V: Add Sxcsrind ISA extension CSR definitions MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 8bit Message-Id: <20260701-counter_delegation-v8-2-7909f863a645@meta.com> References: <20260701-counter_delegation-v8-0-7909f863a645@meta.com> In-Reply-To: <20260701-counter_delegation-v8-0-7909f863a645@meta.com> To: Jiri Olsa , Paul Walmsley , Mark Rutland , Rob Herring , Anup Patel , Namhyung Kim , Arnaldo Carvalho de Melo , Krzysztof Kozlowski , Atish Patra , Ian Rogers , Will Deacon , James Clark Cc: linux-arm-kernel@lists.infradead.org, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, devicetree@vger.kernel.org, linux-perf-users@vger.kernel.org, Conor Dooley X-Migadu-Flow: FLOW_OUT X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.9.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260701_014728_387061_CDB903AF X-CRM114-Status: UNSURE ( 9.15 ) X-CRM114-Notice: Please train this message. X-BeenThere: linux-arm-kernel@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-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Kaiwen Xue This adds definitions of new CSRs and bits defined in Sxcsrind ISA extension. These CSR enables indirect accesses mechanism to access any CSRs in M-, S-, and VS-mode. The range of the select values and ireg will be define by the ISA extension using Sxcsrind extension. Signed-off-by: Kaiwen Xue Reviewed-by: Clément Léger Signed-off-by: Atish Patra --- arch/riscv/include/asm/csr.h | 30 ++++++++++++++++++++++++++++++ 1 file changed, 30 insertions(+) diff --git a/arch/riscv/include/asm/csr.h b/arch/riscv/include/asm/csr.h index 31b8988f4488..b4551a6cf7cb 100644 --- a/arch/riscv/include/asm/csr.h +++ b/arch/riscv/include/asm/csr.h @@ -347,6 +347,12 @@ /* Supervisor-Level Window to Indirectly Accessed Registers (AIA) */ #define CSR_SISELECT 0x150 #define CSR_SIREG 0x151 +/* Supervisor-Level Window to Indirectly Accessed Registers (Sxcsrind) */ +#define CSR_SIREG2 0x152 +#define CSR_SIREG3 0x153 +#define CSR_SIREG4 0x155 +#define CSR_SIREG5 0x156 +#define CSR_SIREG6 0x157 /* Supervisor-Level Interrupts (AIA) */ #define CSR_STOPEI 0x15c @@ -394,6 +400,14 @@ /* VS-Level Window to Indirectly Accessed Registers (H-extension with AIA) */ #define CSR_VSISELECT 0x250 #define CSR_VSIREG 0x251 +/* + * VS-Level Window to Indirectly Accessed Registers (H-extension with Sxcsrind) + */ +#define CSR_VSIREG2 0x252 +#define CSR_VSIREG3 0x253 +#define CSR_VSIREG4 0x255 +#define CSR_VSIREG5 0x256 +#define CSR_VSIREG6 0x257 /* VS-Level Interrupts (H-extension with AIA) */ #define CSR_VSTOPEI 0x25c @@ -436,6 +450,12 @@ /* Machine-Level Window to Indirectly Accessed Registers (AIA) */ #define CSR_MISELECT 0x350 #define CSR_MIREG 0x351 +/* Machine-Level Window to Indirectly Accessed Registers (Sxcsrind) */ +#define CSR_MIREG2 0x352 +#define CSR_MIREG3 0x353 +#define CSR_MIREG4 0x355 +#define CSR_MIREG5 0x356 +#define CSR_MIREG6 0x357 /* Machine-Level Interrupts (AIA) */ #define CSR_MTOPEI 0x35c @@ -498,6 +518,11 @@ # define CSR_IEH CSR_MIEH # define CSR_ISELECT CSR_MISELECT # define CSR_IREG CSR_MIREG +# define CSR_IREG2 CSR_MIREG2 +# define CSR_IREG3 CSR_MIREG3 +# define CSR_IREG4 CSR_MIREG4 +# define CSR_IREG5 CSR_MIREG5 +# define CSR_IREG6 CSR_MIREG6 # define CSR_IPH CSR_MIPH # define CSR_TOPEI CSR_MTOPEI # define CSR_TOPI CSR_MTOPI @@ -523,6 +548,11 @@ # define CSR_IEH CSR_SIEH # define CSR_ISELECT CSR_SISELECT # define CSR_IREG CSR_SIREG +# define CSR_IREG2 CSR_SIREG2 +# define CSR_IREG3 CSR_SIREG3 +# define CSR_IREG4 CSR_SIREG4 +# define CSR_IREG5 CSR_SIREG5 +# define CSR_IREG6 CSR_SIREG6 # define CSR_IPH CSR_SIPH # define CSR_TOPEI CSR_STOPEI # define CSR_TOPI CSR_STOPI -- 2.53.0-Meta