Re: [PATCH v2] arm64: Enable PCI write-combine resources under sysfs

2020-09-18 Thread Will Deacon
On Fri, 18 Sep 2020 03:33:12 +, Clint Sbisa wrote: > This change exposes write-combine mappings under sysfs for > prefetchable PCI resources on arm64. > > Originally, the usage of "write combine" here was driven by the x86 > definition of write combine. This definition is specific to x86 and

Re: [PATCH v2] arm64: Enable PCI write-combine resources under sysfs

2020-09-18 Thread Ard Biesheuvel
On Fri, 18 Sep 2020 at 14:08, Catalin Marinas wrote: > > On Fri, Sep 18, 2020 at 03:33:12AM +, Clint Sbisa wrote: > > This change exposes write-combine mappings under sysfs for > > prefetchable PCI resources on arm64. > > > > Originally, the usage of "write combine" here was driven by the x86

Re: [PATCH v2] arm64: Enable PCI write-combine resources under sysfs

2020-09-18 Thread Catalin Marinas
On Fri, Sep 18, 2020 at 03:33:12AM +, Clint Sbisa wrote: > This change exposes write-combine mappings under sysfs for > prefetchable PCI resources on arm64. > > Originally, the usage of "write combine" here was driven by the x86 > definition of write combine. This definition is specific to

Re: [PATCH v2] arm64: Enable PCI write-combine resources under sysfs

2020-09-18 Thread Lorenzo Pieralisi
On Fri, Sep 18, 2020 at 03:33:12AM +, Clint Sbisa wrote: > This change exposes write-combine mappings under sysfs for > prefetchable PCI resources on arm64. > > Originally, the usage of "write combine" here was driven by the x86 > definition of write combine. This definition is specific to

[PATCH v2] arm64: Enable PCI write-combine resources under sysfs

2020-09-17 Thread Clint Sbisa
This change exposes write-combine mappings under sysfs for prefetchable PCI resources on arm64. Originally, the usage of "write combine" here was driven by the x86 definition of write combine. This definition is specific to x86 and does not generalize to other architectures. However, the usage of