Re: [PATCH] [stable] arm64: Add work around for Arm Cortex-A55 Erratum 1024718

2018-05-05 Thread Suzuki K Poulose
Hi Greg, On 05/04/2018 11:15 PM, Greg KH wrote: On Tue, May 01, 2018 at 11:26:04AM +0100, Suzuki K Poulose wrote: commit ece1397cbc89c51914fae1aec729539cfd8bd62b upstream ... Note: The upstream commit is on top of a reworked capability infrastructure for arm64 heterogeneous systems,

Re: [PATCH] [stable] arm64: Add work around for Arm Cortex-A55 Erratum 1024718

2018-05-05 Thread Suzuki K Poulose
Hi Greg, On 05/04/2018 11:15 PM, Greg KH wrote: On Tue, May 01, 2018 at 11:26:04AM +0100, Suzuki K Poulose wrote: commit ece1397cbc89c51914fae1aec729539cfd8bd62b upstream ... Note: The upstream commit is on top of a reworked capability infrastructure for arm64 heterogeneous systems,

Re: [PATCH] [stable] arm64: Add work around for Arm Cortex-A55 Erratum 1024718

2018-05-04 Thread Greg KH
On Tue, May 01, 2018 at 11:26:04AM +0100, Suzuki K Poulose wrote: > commit ece1397cbc89c51914fae1aec729539cfd8bd62b upstream > > Some variants of the Arm Cortex-55 cores (r0p0, r0p1, r1p0) suffer > from an erratum 1024718, which causes incorrect updates when DBM/AP > bits in a page table entry is

Re: [PATCH] [stable] arm64: Add work around for Arm Cortex-A55 Erratum 1024718

2018-05-04 Thread Greg KH
On Tue, May 01, 2018 at 11:26:04AM +0100, Suzuki K Poulose wrote: > commit ece1397cbc89c51914fae1aec729539cfd8bd62b upstream > > Some variants of the Arm Cortex-55 cores (r0p0, r0p1, r1p0) suffer > from an erratum 1024718, which causes incorrect updates when DBM/AP > bits in a page table entry is

[PATCH] [stable] arm64: Add work around for Arm Cortex-A55 Erratum 1024718

2018-05-01 Thread Suzuki K Poulose
commit ece1397cbc89c51914fae1aec729539cfd8bd62b upstream Some variants of the Arm Cortex-55 cores (r0p0, r0p1, r1p0) suffer from an erratum 1024718, which causes incorrect updates when DBM/AP bits in a page table entry is modified without a break-before-make sequence. The work around is to

[PATCH] [stable] arm64: Add work around for Arm Cortex-A55 Erratum 1024718

2018-05-01 Thread Suzuki K Poulose
commit ece1397cbc89c51914fae1aec729539cfd8bd62b upstream Some variants of the Arm Cortex-55 cores (r0p0, r0p1, r1p0) suffer from an erratum 1024718, which causes incorrect updates when DBM/AP bits in a page table entry is modified without a break-before-make sequence. The work around is to