Re: [PATCH] powerpc/powernv/idle: add a basic stop 0-3 driver for POWER10

2020-09-17 Thread Michael Ellerman
On Wed, 19 Aug 2020 19:47:00 +1000, Nicholas Piggin wrote: > This driver does not restore stop > 3 state, so it limits itself > to states which do not lose full state or TB. > > The POWER10 SPRs are sufficiently different from P9 that it seems > easier to split out the P10 code. The POWER10 deep

Re: [PATCH] powerpc/powernv/idle: add a basic stop 0-3 driver for POWER10

2020-08-19 Thread Pratik Sampat
On 19/08/20 3:17 pm, Nicholas Piggin wrote: This driver does not restore stop > 3 state, so it limits itself to states which do not lose full state or TB. The POWER10 SPRs are sufficiently different from P9 that it seems easier to split out the P10 code. The POWER10 deep sleep code (e.g.,

Re: [PATCH] powerpc/powernv/idle: add a basic stop 0-3 driver for POWER10

2020-08-19 Thread Pratik Sampat
On 19/08/20 3:17 pm, Nicholas Piggin wrote: This driver does not restore stop > 3 state, so it limits itself to states which do not lose full state or TB. The POWER10 SPRs are sufficiently different from P9 that it seems easier to split out the P10 code. The POWER10 deep sleep code (e.g., the

Re: [PATCH] powerpc/powernv/idle: add a basic stop 0-3 driver for POWER10

2020-08-19 Thread Gautham R Shenoy
On Wed, Aug 19, 2020 at 07:47:00PM +1000, Nicholas Piggin wrote: > This driver does not restore stop > 3 state, so it limits itself > to states which do not lose full state or TB. > > The POWER10 SPRs are sufficiently different from P9 that it seems > easier to split out the P10 code. The POWER10

Re: [PATCH] powerpc/powernv/idle: add a basic stop 0-3 driver for POWER10

2020-08-19 Thread Vaidyanathan Srinivasan
* Nicholas Piggin [2020-08-19 19:47:00]: > This driver does not restore stop > 3 state, so it limits itself > to states which do not lose full state or TB. > > The POWER10 SPRs are sufficiently different from P9 that it seems > easier to split out the P10 code. The POWER10 deep sleep code >

[PATCH] powerpc/powernv/idle: add a basic stop 0-3 driver for POWER10

2020-08-19 Thread Nicholas Piggin
This driver does not restore stop > 3 state, so it limits itself to states which do not lose full state or TB. The POWER10 SPRs are sufficiently different from P9 that it seems easier to split out the P10 code. The POWER10 deep sleep code (e.g., the BHRB restore) has been taken out, but it can be