Messages in this thread |  | | Subject | Re: [PATCH 2/2] perf: add arm64 smmuv3 pmu driver | From | Hanjun Guo <> | Date | Mon, 2 Apr 2018 22:24:41 +0800 |
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On 2018/4/2 14:37, Yisheng Xie wrote: > Hi Neil, > > On 2018/4/1 13:44, Neil Leeder wrote: >> Hi Yisheng Xie, >> >> On 3/29/2018 03:03 AM, Yisheng Xie wrote: >>> >>> Hi Neil, >>> >>> On 2017/8/5 3:59, Neil Leeder wrote: >>>> + mem_resource_0 = platform_get_resource(pdev, IORESOURCE_MEM, 0); >>>> + mem_map_0 = devm_ioremap_resource(&pdev->dev, mem_resource_0); >>>> + >>> Can we use devm_ioremap instead? for the reg_base of smmu_pmu is >>> IMPLEMENTATION DEFINED. If the reg of smmu_pmu is inside smmu, >>> devm_ioremap_resource will failed and return -EBUSY, eg.: >>> >>> smmu reg ranges: 0x180000000 ~ 0x1801fffff >>> its smmu_pmu reg ranges: 0x180001000 ~ 0x180001fff >>> >> Just to let you know that I no longer work at Qualcomm and I won't be able to provide updates to this patchset. I expect that others from my former team at Qualcomm will pick up ownership. > > Thanks for this infomation. > > hi Agustin and Timur, > > Is there any new status about this patchset?
I think we need to wait for the new version of IORT spec, which includes the fix for the two base address for SMMUv3 PMCG (now just represent one).
Thanks Hanjun
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