Re: [linux-sunxi] Re: [PATCH 0/2] Allwinner A64 timer workaround

2018-07-04 Thread Samuel Holland
On 07/04/18 10:01, Marc Zyngier wrote: > On Wed, 04 Jul 2018 15:44:36, Andre Przywara wrote: >> On 04/07/18 15:31, Thomas Gleixner wrote: >>> On Wed, 4 Jul 2018, Andre Przywara wrote: On 04/07/18 11:00, Thomas Gleixner wrote: > On Wed, 4 Jul 2018, Marc Zyngier wrote: >> On 04/07/18 09

Re: [PATCH 0/2] Allwinner A64 timer workaround

2018-07-04 Thread Maxime Ripard
On Wed, Jul 04, 2018 at 09:16:32AM +0100, Marc Zyngier wrote: > On 03/07/18 19:42, Samuel Holland wrote: > > On 07/03/18 10:09, Marc Zyngier wrote: > >> On 11/05/18 03:27, Samuel Holland wrote: > >>> Hello, > >>> > >>> Several people (including me) have experienced extremely large system > >>> cloc

Re: [PATCH 0/2] Allwinner A64 timer workaround

2018-07-04 Thread Marc Zyngier
On 03/07/18 19:42, Samuel Holland wrote: > On 07/03/18 10:09, Marc Zyngier wrote: >> On 11/05/18 03:27, Samuel Holland wrote: >>> Hello, >>> >>> Several people (including me) have experienced extremely large system >>> clock jumps on their A64-based devices, apparently due to the architectural >>>

Re: [PATCH 0/2] Allwinner A64 timer workaround

2018-05-11 Thread Andre Przywara
Hi, On 11/05/18 03:27, Samuel Holland wrote: > Hello, > > Several people (including me) have experienced extremely large system > clock jumps on their A64-based devices, apparently due to the > architectural timer going backward, which is interpreted by Linux as > the timer wrapping around after

[PATCH 0/2] Allwinner A64 timer workaround

2018-05-10 Thread Samuel Holland
Hello, Several people (including me) have experienced extremely large system clock jumps on their A64-based devices, apparently due to the architectural timer going backward, which is interpreted by Linux as the timer wrapping around after 2^56 cycles. Investigation led to discovery of some obvio