From: Dave Martin <Dave.Martin@arm.com>
To: Suzuki K Poulose <suzuki.poulose@arm.com>
Cc: linux-arm-kernel@lists.infradead.org, mark.rutland@arm.com,
ckadabi@codeaurora.org, ard.biesheuvel@linaro.org,
marc.zyngier@arm.com, catalin.marinas@arm.com,
will.deacon@arm.com, linux-kernel@vger.kernel.org,
jnair@caviumnetworks.com
Subject: Re: [PATCH 11/16] arm64: errata: Clean up midr range helpers
Date: Fri, 26 Jan 2018 13:50:13 +0000 [thread overview]
Message-ID: <20180126135013.GS5862@e103592.cambridge.arm.com> (raw)
In-Reply-To: <20180123122809.16269-12-suzuki.poulose@arm.com>
On Tue, Jan 23, 2018 at 12:28:04PM +0000, Suzuki K Poulose wrote:
> We are about to introduce generic MIDR range helpers. Clean
> up the existing helpers in errat handling, preparing them
errata/erratum
> to use generic version.
>
> Signed-off-by: Suzuki K Poulose <suzuki.poulose@arm.com>
> ---
> arch/arm64/kernel/cpu_errata.c | 76 +++++++++++++++++++++++-------------------
> 1 file changed, 41 insertions(+), 35 deletions(-)
>
> diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c
> index 550ac8a0854b..054b17009f41 100644
> --- a/arch/arm64/kernel/cpu_errata.c
> +++ b/arch/arm64/kernel/cpu_errata.c
> @@ -179,14 +179,23 @@ static int qcom_enable_link_stack_sanitization(
> }
> #endif /* CONFIG_HARDEN_BRANCH_PREDICTOR */
>
> -#define MIDR_RANGE(model, min, max) \
> +#define ERRATA_MIDR_RANGE(model, v_min, r_min, v_max, r_max) \
> .type = ARM64_CPUCAP_STRICT_CPU_LOCAL_ERRATUM, \
> .matches = is_affected_midr_range, \
> .midr_model = model, \
> - .midr_range_min = min, \
> - .midr_range_max = max
> + .midr_range_min = MIDR_CPU_VAR_REV(v_min, r_min), \
> + .midr_range_max = MIDR_CPU_VAR_REV(v_max, r_max)
>
> -#define MIDR_ALL_VERSIONS(model) \
> +/* Errata affecting a range of revisions of given model variant */
> +#define ERRATA_MIDR_REV_RANGE(m, var, r_min, r_max) \
> + ERRATA_MIDR_RANGE(m, var, r_min, var, r_max)
> +
> +/* Errata affecting a single variant/revision of a model */
> +#define ERRATA_MIDR(model, var, rev) \
Maybe call this ERRATA_MIDR_REV() since it's similar to
ERRATA_MIDR_REV_RANGE() but describes a single revision?
[...]
Cheers
---Dave
next prev parent reply other threads:[~2018-01-26 13:50 UTC|newest]
Thread overview: 67+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-01-23 12:27 [PATCH 00/16] arm64: Rework cpu capabilities handling Suzuki K Poulose
2018-01-23 12:27 ` [PATCH 01/16] arm64: capabilities: Update prototype for enable call back Suzuki K Poulose
2018-01-23 14:52 ` Dave Martin
2018-01-23 15:38 ` Suzuki K Poulose
2018-01-25 15:36 ` Dave Martin
2018-01-25 16:57 ` Suzuki K Poulose
2018-01-29 16:35 ` Dave Martin
2018-01-23 12:27 ` [PATCH 02/16] arm64: Move errata work around check on boot CPU Suzuki K Poulose
2018-01-23 14:59 ` Dave Martin
2018-01-23 15:07 ` Suzuki K Poulose
2018-01-23 15:11 ` Dave Martin
2018-01-23 12:27 ` [PATCH 03/16] arm64: Move errata capability processing code Suzuki K Poulose
2018-01-23 12:27 ` [PATCH 04/16] arm64: capabilities: Prepare for fine grained capabilities Suzuki K Poulose
2018-01-23 17:33 ` Dave Martin
2018-01-24 18:45 ` Suzuki K Poulose
2018-01-25 13:43 ` Dave Martin
2018-01-25 17:08 ` Suzuki K Poulose
2018-01-25 17:38 ` Dave Martin
2018-01-25 17:33 ` Dave Martin
2018-01-25 17:56 ` Suzuki K Poulose
2018-01-26 10:00 ` Dave Martin
2018-01-26 12:13 ` Suzuki K Poulose
2018-01-23 12:27 ` [PATCH 05/16] arm64: Add flags to check the safety of a capability for late CPU Suzuki K Poulose
2018-01-26 10:10 ` Dave Martin
2018-01-30 11:17 ` Suzuki K Poulose
2018-01-30 14:56 ` Dave Martin
2018-01-30 15:06 ` Suzuki K Poulose
2018-01-23 12:27 ` [PATCH 06/16] arm64: capabilities: Unify the verification Suzuki K Poulose
2018-01-26 11:08 ` Dave Martin
2018-01-26 12:10 ` Suzuki K Poulose
2018-01-29 16:57 ` Dave Martin
2018-01-23 12:28 ` [PATCH 07/16] arm64: capabilities: Filter the entries based on a given type Suzuki K Poulose
2018-01-26 11:22 ` Dave Martin
2018-01-26 12:21 ` Suzuki K Poulose
2018-01-29 17:06 ` Dave Martin
2018-01-23 12:28 ` [PATCH 08/16] arm64: capabilities: Group handling of features and errata Suzuki K Poulose
2018-01-26 11:47 ` Dave Martin
2018-01-26 12:31 ` Suzuki K Poulose
2018-01-29 17:14 ` Dave Martin
2018-01-29 17:22 ` Suzuki K Poulose
2018-01-30 15:06 ` Dave Martin
2018-01-23 12:28 ` [PATCH 09/16] arm64: capabilities: Introduce strict features based on local CPU Suzuki K Poulose
2018-01-26 12:12 ` Dave Martin
2018-01-30 11:25 ` Suzuki K Poulose
2018-01-23 12:28 ` [PATCH 10/16] arm64: Make KPTI strict CPU local feature Suzuki K Poulose
2018-01-26 12:25 ` Dave Martin
2018-01-26 15:46 ` Suzuki K Poulose
2018-01-29 17:24 ` Dave Martin
2018-01-23 12:28 ` [PATCH 11/16] arm64: errata: Clean up midr range helpers Suzuki K Poulose
2018-01-26 13:50 ` Dave Martin [this message]
2018-01-23 12:28 ` [PATCH 12/16] arm64: Add helpers for checking CPU MIDR against a range Suzuki K Poulose
2018-01-26 14:08 ` Dave Martin
2018-01-23 12:28 ` [PATCH 13/16] arm64: Add support for checking errata based on a list of MIDRS Suzuki K Poulose
2018-01-26 14:16 ` Dave Martin
2018-01-26 15:57 ` Suzuki K Poulose
2018-01-30 15:16 ` Dave Martin
2018-01-30 15:38 ` Suzuki K Poulose
2018-01-30 15:58 ` Dave Martin
2018-01-23 12:28 ` [PATCH 14/16] arm64: Add MIDR encoding for Arm Cortex-A55 and Cortex-A35 Suzuki K Poulose
2018-01-23 12:28 ` [PATCH 15/16] arm64: Delay enabling hardware DBM feature Suzuki K Poulose
2018-01-26 14:41 ` Dave Martin
2018-01-26 16:05 ` Suzuki K Poulose
2018-01-30 15:22 ` Dave Martin
2018-01-23 12:28 ` [PATCH 16/16] arm64: Add work around for Arm Cortex-A55 Erratum 1024718 Suzuki K Poulose
2018-01-26 15:33 ` Dave Martin
2018-01-26 16:29 ` Suzuki K Poulose
2018-01-30 15:27 ` Dave Martin
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