Re: [PATCH] powerpc/xive: discard ESB load value when interrupt is invalid

2020-01-16 Thread Cédric Le Goater
>> You might want to use 'git tag --contains': >> >> [greg@bahia kernel-linus]$ git tag --contains da15c03b047d >> for-linus >> kvm-5.4-2 >> next-20191118 >> next-20191126 >> tags/kvm-5.4-1 >> tags/kvm-5.4-2 >> v5.4 >> v5.4-rc1 > > Or: > > $ git describe --match "v[0-9]*" --contains da15c03b047

Re: [PATCH] powerpc/xive: discard ESB load value when interrupt is invalid

2020-01-15 Thread Michael Ellerman
Greg Kurz writes: > On Tue, 14 Jan 2020 08:44:54 +0100 > Cédric Le Goater wrote: >> On 1/14/20 2:14 AM, Michael Ellerman wrote: >> > Cédric Le Goater writes: >> >> On 1/13/20 2:01 PM, Cédric Le Goater wrote: >> >>> From: Frederic Barrat >> >>> >> >>> A load on an ESB page returning all 1's mean

Re: [PATCH] powerpc/xive: discard ESB load value when interrupt is invalid

2020-01-14 Thread Greg Kurz
On Tue, 14 Jan 2020 08:44:54 +0100 Cédric Le Goater wrote: > On 1/14/20 2:14 AM, Michael Ellerman wrote: > > Cédric Le Goater writes: > >> On 1/13/20 2:01 PM, Cédric Le Goater wrote: > >>> From: Frederic Barrat > >>> > >>> A load on an ESB page returning all 1's means that the underlying > >>>

Re: [PATCH] powerpc/xive: discard ESB load value when interrupt is invalid

2020-01-14 Thread Cédric Le Goater
On 1/14/20 2:14 AM, Michael Ellerman wrote: > Cédric Le Goater writes: >> On 1/13/20 2:01 PM, Cédric Le Goater wrote: >>> From: Frederic Barrat >>> >>> A load on an ESB page returning all 1's means that the underlying >>> device has invalidated the access to the PQ state of the interrupt >>> thro

Re: [PATCH] powerpc/xive: discard ESB load value when interrupt is invalid

2020-01-13 Thread Michael Ellerman
Cédric Le Goater writes: > On 1/13/20 2:01 PM, Cédric Le Goater wrote: >> From: Frederic Barrat >> >> A load on an ESB page returning all 1's means that the underlying >> device has invalidated the access to the PQ state of the interrupt >> through mmio. It may happen, for example when querying

Re: [PATCH] powerpc/xive: discard ESB load value when interrupt is invalid

2020-01-13 Thread Cédric Le Goater
On 1/13/20 2:01 PM, Cédric Le Goater wrote: > From: Frederic Barrat > > A load on an ESB page returning all 1's means that the underlying > device has invalidated the access to the PQ state of the interrupt > through mmio. It may happen, for example when querying a PHB interrupt > while the PHB i