Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932289AbdDDRSt (ORCPT ); Tue, 4 Apr 2017 13:18:49 -0400 Received: from foss.arm.com ([217.140.101.70]:47670 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932246AbdDDRSr (ORCPT ); Tue, 4 Apr 2017 13:18:47 -0400 From: Marc Zyngier To: linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org Cc: Mark Rutland , Catalin Marinas , Daniel Lezcano , Will Deacon , Scott Wood , Hanjun Guo , Ding Tianhong , dann frazier , Thomas Gleixner Subject: [PATCH v3 04/18] arm64: cpu_errata: Allow an erratum to be match for all revisions of a core Date: Tue, 4 Apr 2017 18:18:12 +0100 Message-Id: <20170404171826.25030-5-marc.zyngier@arm.com> X-Mailer: git-send-email 2.11.0 In-Reply-To: <20170404171826.25030-1-marc.zyngier@arm.com> References: <20170404171826.25030-1-marc.zyngier@arm.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 1264 Lines: 35 Some minor erratum may not be fixed in further revisions of a core, leading to a situation where the workaround needs to be updated each time an updated core is released. Introduce a MIDR_ALL_VERSIONS match helper that will work for all versions of that MIDR, once and for all. Acked-by: Mark Rutland Acked-by: Daniel Lezcano Reviewed-by: Suzuki K Poulose Signed-off-by: Marc Zyngier --- arch/arm64/kernel/cpu_errata.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c index f6cc67e7626e..2be1d1c05303 100644 --- a/arch/arm64/kernel/cpu_errata.c +++ b/arch/arm64/kernel/cpu_errata.c @@ -53,6 +53,13 @@ static int cpu_enable_trap_ctr_access(void *__unused) .midr_range_min = min, \ .midr_range_max = max +#define MIDR_ALL_VERSIONS(model) \ + .def_scope = SCOPE_LOCAL_CPU, \ + .matches = is_affected_midr_range, \ + .midr_model = model, \ + .midr_range_min = 0, \ + .midr_range_max = (MIDR_VARIANT_MASK | MIDR_REVISION_MASK) + const struct arm64_cpu_capabilities arm64_errata[] = { #if defined(CONFIG_ARM64_ERRATUM_826319) || \ defined(CONFIG_ARM64_ERRATUM_827319) || \ -- 2.11.0