[v6,03/14] riscv: sbi: add new SBI error mappings

Message ID	20250424173204.1948385-4-cleger@rivosinc.com
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Headers	show Received: from mail-pl1-f170.google.com (mail-pl1-f170.google.com [209.85.214.170]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 237B828E5E1 for <linux-kselftest@vger.kernel.org>; Thu, 24 Apr 2025 17:34:03 +0000 (UTC) From: =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= <cleger@rivosinc.com> To: Paul Walmsley <paul.walmsley@sifive.com>, Palmer Dabbelt <palmer@dabbelt.com>, Anup Patel <anup@brainfault.org>, Atish Patra <atishp@atishpatra.org>, Shuah Khan <shuah@kernel.org>, Jonathan Corbet <corbet@lwn.net>, linux-riscv@lists.infradead.org, linux-kernel@vger.kernel.org, linux-doc@vger.kernel.org, kvm@vger.kernel.org, kvm-riscv@lists.infradead.org, linux-kselftest@vger.kernel.org Cc: =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= <cleger@rivosinc.com>, Samuel Holland <samuel.holland@sifive.com>, Andrew Jones <ajones@ventanamicro.com>, Deepak Gupta <debug@rivosinc.com> Subject: [PATCH v6 03/14] riscv: sbi: add new SBI error mappings Date: Thu, 24 Apr 2025 19:31:50 +0200 Message-ID: <20250424173204.1948385-4-cleger@rivosinc.com> In-Reply-To: <20250424173204.1948385-1-cleger@rivosinc.com> References: <20250424173204.1948385-1-cleger@rivosinc.com> Precedence: bulk MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit
Series	riscv: add SBI FWFT misaligned exception delegation support \| expand [v6,00/14] riscv: add SBI FWFT misaligned exception delegation support [v6,01/14] riscv: sbi: add Firmware Feature (FWFT) SBI extensions definitions [v6,02/14] riscv: sbi: remove useless parenthesis [v6,03/14] riscv: sbi: add new SBI error mappings [v6,04/14] riscv: sbi: add FWFT extension interface [v6,05/14] riscv: sbi: add SBI FWFT extension calls [v6,06/14] riscv: misaligned: request misaligned exception from SBI [v6,07/14] riscv: misaligned: use on_each_cpu() for scalar misaligned access probing [v6,08/14] riscv: misaligned: use correct CONFIG_ ifdef for misaligned_access_speed [v6,09/14] riscv: misaligned: move emulated access uniformity check in a function [v6,10/14] riscv: misaligned: add a function to check misalign trap delegability [v6,11/14] RISC-V: KVM: add SBI extension init()/deinit() functions [v6,12/14] RISC-V: KVM: add SBI extension reset callback [v6,13/14] RISC-V: KVM: add support for FWFT SBI extension [v6,14/14] RISC-V: KVM: add support for SBI_FWFT_MISALIGNED_DELEG

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20250424173204.1948385-4-cleger@rivosinc.com

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From: =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= <cleger@rivosinc.com>
To: Paul Walmsley <paul.walmsley@sifive.com>,
	Palmer Dabbelt <palmer@dabbelt.com>,
	Anup Patel <anup@brainfault.org>,
	Atish Patra <atishp@atishpatra.org>,
	Shuah Khan <shuah@kernel.org>,
	Jonathan Corbet <corbet@lwn.net>,
	linux-riscv@lists.infradead.org,
	linux-kernel@vger.kernel.org,
	linux-doc@vger.kernel.org,
	kvm@vger.kernel.org,
	kvm-riscv@lists.infradead.org,
	linux-kselftest@vger.kernel.org
Cc: =?utf-8?b?Q2zDqW1lbnQgTMOpZ2Vy?= <cleger@rivosinc.com>,
 Samuel Holland <samuel.holland@sifive.com>,
 Andrew Jones <ajones@ventanamicro.com>, Deepak Gupta <debug@rivosinc.com>
Subject: [PATCH v6 03/14] riscv: sbi: add new SBI error mappings
Date: Thu, 24 Apr 2025 19:31:50 +0200
Message-ID: <20250424173204.1948385-4-cleger@rivosinc.com>
In-Reply-To: <20250424173204.1948385-1-cleger@rivosinc.com>
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Series

riscv: add SBI FWFT misaligned exception delegation support | expand

Commit Message

Clément Léger April 24, 2025, 5:31 p.m. UTC

A few new errors have been added with SBI V3.0, maps them as close as
possible to errno values.

Signed-off-by: Clément Léger <cleger@rivosinc.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
---
 arch/riscv/include/asm/sbi.h | 10 ++++++++++
 1 file changed, 10 insertions(+)

Comments

Atish Patra May 8, 2025, 8:18 p.m. UTC | #1

On 4/24/25 10:31 AM, ClÃ©ment LÃ©ger wrote:
> A few new errors have been added with SBI V3.0, maps them as close as
> possible to errno values.
> 
> Signed-off-by: Clément Léger <cleger@rivosinc.com>
> Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
> ---
>   arch/riscv/include/asm/sbi.h | 10 ++++++++++
>   1 file changed, 10 insertions(+)
> 
> diff --git a/arch/riscv/include/asm/sbi.h b/arch/riscv/include/asm/sbi.h
> index bb077d0c912f..7ec249fea880 100644
> --- a/arch/riscv/include/asm/sbi.h
> +++ b/arch/riscv/include/asm/sbi.h
> @@ -536,11 +536,21 @@ static inline int sbi_err_map_linux_errno(int err)
>   	case SBI_SUCCESS:
>   		return 0;
>   	case SBI_ERR_DENIED:
> +	case SBI_ERR_DENIED_LOCKED:
>   		return -EPERM;
>   	case SBI_ERR_INVALID_PARAM:
> +	case SBI_ERR_INVALID_STATE:
>   		return -EINVAL;
> +	case SBI_ERR_BAD_RANGE:
> +		return -ERANGE;
>   	case SBI_ERR_INVALID_ADDRESS:
>   		return -EFAULT;
> +	case SBI_ERR_NO_SHMEM:
> +		return -ENOMEM;
> +	case SBI_ERR_TIMEOUT:
> +		return -ETIME;
> +	case SBI_ERR_IO:
> +		return -EIO;
>   	case SBI_ERR_NOT_SUPPORTED:
>   	case SBI_ERR_FAILURE:
>   	default:

Reviewed-by: Atish Patra <atishp@rivosinc.com>

diff --git a/arch/riscv/include/asm/sbi.h b/arch/riscv/include/asm/sbi.h
index bb077d0c912f..7ec249fea880 100644
--- a/arch/riscv/include/asm/sbi.h
+++ b/arch/riscv/include/asm/sbi.h
@@ -536,11 +536,21 @@  static inline int sbi_err_map_linux_errno(int err)
 	case SBI_SUCCESS:
 		return 0;
 	case SBI_ERR_DENIED:
+	case SBI_ERR_DENIED_LOCKED:
 		return -EPERM;
 	case SBI_ERR_INVALID_PARAM:
+	case SBI_ERR_INVALID_STATE:
 		return -EINVAL;
+	case SBI_ERR_BAD_RANGE:
+		return -ERANGE;
 	case SBI_ERR_INVALID_ADDRESS:
 		return -EFAULT;
+	case SBI_ERR_NO_SHMEM:
+		return -ENOMEM;
+	case SBI_ERR_TIMEOUT:
+		return -ETIME;
+	case SBI_ERR_IO:
+		return -EIO;
 	case SBI_ERR_NOT_SUPPORTED:
 	case SBI_ERR_FAILURE:
 	default:

[v6,03/14] riscv: sbi: add new SBI error mappings

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