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From: Steven Price <steven.price@arm.com>
To: Sudeep Holla <sudeep.holla@arm.com>,
	linux-arm-kernel@lists.infradead.org
Cc: Mark Rutland <mark.rutland@arm.com>,
	Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	linux-kernel@vger.kernel.org, harb@amperecomputing.com,
	Will Deacon <will@kernel.org>
Subject: Re: [PATCH 2/5] arm/arm64: smccc: Add the definition for SMCCCv1.2 version/error codes
Date: Fri, 1 May 2020 15:46:58 +0100	[thread overview]
Message-ID: <921e3b04-f624-38ba-2304-a1f0bdffded9@arm.com> (raw)
In-Reply-To: <20200430114814.14116-3-sudeep.holla@arm.com>

On 30/04/2020 12:48, Sudeep Holla wrote:
> Add the definition for SMCCC v1.2 version and new error code added.
> While at it, also add a note that ARM DEN 0070A is deprecated and is
> now merged into the main SMCCC specification(ARM DEN 0028C).
> 
> Signed-off-by: Sudeep Holla <sudeep.holla@arm.com>

Reviewed-by: Steven Price <steven.price@arm.com>

> ---
>   include/linux/arm-smccc.h | 7 ++++++-
>   1 file changed, 6 insertions(+), 1 deletion(-)
> 
> diff --git a/include/linux/arm-smccc.h b/include/linux/arm-smccc.h
> index 6c1d1eda3be4..9d9a2e42e919 100644
> --- a/include/linux/arm-smccc.h
> +++ b/include/linux/arm-smccc.h
> @@ -56,6 +56,7 @@
>   
>   #define ARM_SMCCC_VERSION_1_0		0x10000
>   #define ARM_SMCCC_VERSION_1_1		0x10001
> +#define ARM_SMCCC_VERSION_1_2		0x10002
>   
>   #define ARM_SMCCC_VERSION_FUNC_ID					\
>   	ARM_SMCCC_CALL_VAL(ARM_SMCCC_FAST_CALL,				\
> @@ -314,10 +315,14 @@ asmlinkage void __arm_smccc_hvc(unsigned long a0, unsigned long a1,
>    */
>   #define arm_smccc_1_1_hvc(...)	__arm_smccc_1_1(SMCCC_HVC_INST, __VA_ARGS__)
>   
> -/* Return codes defined in ARM DEN 0070A */
> +/*
> + * Return codes defined in ARM DEN 0070A
> + * ARM DEN 0070A is now merged/consolidated into ARM DEN 0028C
> + */
>   #define SMCCC_RET_SUCCESS			0
>   #define SMCCC_RET_NOT_SUPPORTED			-1
>   #define SMCCC_RET_NOT_REQUIRED			-2
> +#define SMCCC_RET_INVALID_PARAMETER		-3
>   
>   /*
>    * Like arm_smccc_1_1* but always returns SMCCC_RET_NOT_SUPPORTED.
> 


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  reply	other threads:[~2020-05-01 14:50 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-04-30 11:48 [PATCH 0/5] arm/arm64: smccc: Add ARCH_SOC_ID support Sudeep Holla
2020-04-30 11:48 ` [PATCH 1/5] arm/arm64: smccc: Update link to latest SMCCC specification Sudeep Holla
2020-05-01 14:46   ` Steven Price
2020-04-30 11:48 ` [PATCH 2/5] arm/arm64: smccc: Add the definition for SMCCCv1.2 version/error codes Sudeep Holla
2020-05-01 14:46   ` Steven Price [this message]
2020-04-30 11:48 ` [PATCH 3/5] arm/arm64: smccc: Drop smccc_version enum and use ARM_SMCCC_VERSION_1_x instead Sudeep Holla
2020-05-01 14:48   ` Steven Price
2020-04-30 11:48 ` [PATCH 4/5] firmware: psci: Add function to fetch SMCCC version Sudeep Holla
2020-04-30 11:48 ` [PATCH 5/5] arm/arm64: smccc: Add ARCH_SOC_ID support Sudeep Holla
2020-05-01 15:07   ` Steven Price
2020-05-01 15:57     ` Sudeep Holla
2020-05-01 15:25   ` John Garry
2020-05-01 16:05     ` Sudeep Holla
2020-05-01 16:40       ` John Garry

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