Re: [PATCH] hw/openrisc: Fixed undercounting of TTCR in continuous mode

2024-11-12 Thread Stafford Horne
On Fri, Jun 07, 2024 at 03:29:33PM -0700, Joel Holdsworth via wrote: > In the existing design, TTCR is prone to undercounting when running in > continuous mode. This manifests as a timer interrupt appearing to > trigger a few cycles prior to the deadline set in SPR_TTMR_TP. > > When the timer trig

Re: [PATCH] hw/openrisc: Fixed undercounting of TTCR in continuous mode

2024-08-04 Thread Stafford Horne
On Mon, Jun 10, 2024 at 07:29:15PM +, Joel Holdsworth wrote: > Hi Stafford, thanks for your response. > > > - You sent this 2 times, is the only change in v2 the sender address? > > Yes, I was just having some difficulty with Git and SMTP. Should be fixed now. OK. > >> In the existing desig

Re: [PATCH] hw/openrisc: Fixed undercounting of TTCR in continuous mode

2024-06-10 Thread Joel Holdsworth
Hi Stafford, thanks for your response. > - You sent this 2 times, is the only change in v2 the sender address? Yes, I was just having some difficulty with Git and SMTP. Should be fixed now. >> In the existing design, TTCR is prone to undercounting when running in >> continuous mode. This manife

Re: [PATCH] hw/openrisc: Fixed undercounting of TTCR in continuous mode

2024-06-08 Thread Stafford Horne
Hi Joel, I am away and wont be able to have too much time to look at this. But have a few comments below and questions. - You sent this 2 times, is the only change in v2 the sender address? On Fri, Jun 07, 2024 at 03:29:33PM -0700, Joel Holdsworth via wrote: > In the existing design, TTCR is p

[PATCH] hw/openrisc: Fixed undercounting of TTCR in continuous mode

2024-06-07 Thread Joel Holdsworth via
In the existing design, TTCR is prone to undercounting when running in continuous mode. This manifests as a timer interrupt appearing to trigger a few cycles prior to the deadline set in SPR_TTMR_TP. When the timer triggers, the virtual time delta in nanoseconds between the time when the timer was