[PATCH v2 2/5] arm64: Work around Falkor erratum 1003
From: Christopher Covington <hidden>
Date: 2017-01-06 15:49:56
Also in:
kvm, kvmarm, lkml
From: Christopher Covington <hidden>
Date: 2017-01-06 15:49:56
Also in:
kvm, kvmarm, lkml
On 01/03/2017 10:55 AM, Mark Rutland wrote:
Hi, On Thu, Dec 29, 2016 at 05:43:32PM -0500, Christopher Covington wrote:quoted
+config QCOM_FALKOR_E1003_RESERVED_ASID + int + default 1 + depends on QCOM_FALKOR_ERRATUM_1003 +I don't think this needs to be configurable, so let's drop this into a header, e.g. drop: #define FALKOR_RESERVED_ASID 1 ... in <asm/mmu_context.h>, protecting the rest with an ifndef __ASSEMBLY__ guard.
Will do, thanks for the concrete suggestion.
[...]quoted
+#ifdef CONFIG_QCOM_FALKOR_ERRATUM_1003 +alternative_if ARM64_WORKAROUND_QCOM_FALKOR_E1003 + mrs x2, ttbr0_el1 // get cuurent TTBR0_EL1 + mov x3, #CONFIG_QCOM_FALKOR_ERRATUM_1003 // reserved ASIDWrong macro? That's not the ASID.
Oops, thanks for spotting. Cov -- Qualcomm Datacenter Technologies, Inc. as an affiliate of Qualcomm Technologies, Inc. Qualcomm Technologies, Inc. is a member of the Code Aurora Forum, a Linux Foundation Collaborative Project.