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Message-ID: <14f90cc6-f2c1-5a63-67c6-a5c8ddb4799e@gmail.com> Date: Sun, 1 Apr 2018 01:44:41 -0400 From: Neil Leeder <neil.m.leeder@...il.com> To: Yisheng Xie <xieyisheng1@...wei.com>, Will Deacon <will.deacon@....com>, Mark Rutland <mark.rutland@....com> Cc: linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, Mark Langsdorf <mlangsdo@...hat.com>, Mark Salter <msalter@...hat.com>, Jon Masters <jcm@...hat.com>, Timur Tabi <timur@...eaurora.org>, Mark Brown <broonie@...nel.org>, Agustin Vega-Frias <agustinv@...eaurora.org>, Neil Leeder <neil.m.leeder@...il.com> Subject: Re: [PATCH 2/2] perf: add arm64 smmuv3 pmu driver 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. Neil
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