Re: [PATCH 03/15] powerpc/powernv/pci: Add explicit tracking of the DMA setup state

2020-07-15 Thread Oliver O'Halloran
On Wed, Jul 15, 2020 at 5:05 PM Cédric Le Goater wrote: > > I could but can we fix the issue below before I reboot ? I don't have a > console anymore on these boxes. > > Firmware is : > *snip* Do you know when that started happening? I don't think anything console related has changed in a very

Re: [PATCH 03/15] powerpc/powernv/pci: Add explicit tracking of the DMA setup state

2020-07-15 Thread Cédric Le Goater
On 7/15/20 5:33 AM, Alexey Kardashevskiy wrote: > > > On 15/07/2020 11:38, Oliver O'Halloran wrote: >> On Tue, Jul 14, 2020 at 5:21 PM Alexey Kardashevskiy wrote: >>> >>> On 14/07/2020 15:58, Oliver O'Halloran wrote: On Tue, Jul 14, 2020 at 3:37 PM Alexey Kardashevskiy wrote: >

Re: [PATCH 03/15] powerpc/powernv/pci: Add explicit tracking of the DMA setup state

2020-07-14 Thread Alexey Kardashevskiy
On 15/07/2020 11:38, Oliver O'Halloran wrote: > On Tue, Jul 14, 2020 at 5:21 PM Alexey Kardashevskiy wrote: >> >> On 14/07/2020 15:58, Oliver O'Halloran wrote: >>> On Tue, Jul 14, 2020 at 3:37 PM Alexey Kardashevskiy wrote: On 10/07/2020 15:23, Oliver O'Halloran wrote: > This

Re: [PATCH 03/15] powerpc/powernv/pci: Add explicit tracking of the DMA setup state

2020-07-14 Thread Oliver O'Halloran
On Tue, Jul 14, 2020 at 5:21 PM Alexey Kardashevskiy wrote: > > On 14/07/2020 15:58, Oliver O'Halloran wrote: > > On Tue, Jul 14, 2020 at 3:37 PM Alexey Kardashevskiy wrote: > >> > >> On 10/07/2020 15:23, Oliver O'Halloran wrote: > >>> This also means the only remaining user of the old "DMA

Re: [PATCH 03/15] powerpc/powernv/pci: Add explicit tracking of the DMA setup state

2020-07-14 Thread Alexey Kardashevskiy
On 14/07/2020 17:21, Alexey Kardashevskiy wrote: > > > On 14/07/2020 15:58, Oliver O'Halloran wrote: >> On Tue, Jul 14, 2020 at 3:37 PM Alexey Kardashevskiy wrote: >>> >>> On 10/07/2020 15:23, Oliver O'Halloran wrote: There's an optimisation in the PE setup which skips performing DMA

Re: [PATCH 03/15] powerpc/powernv/pci: Add explicit tracking of the DMA setup state

2020-07-14 Thread Alexey Kardashevskiy
On 14/07/2020 15:58, Oliver O'Halloran wrote: > On Tue, Jul 14, 2020 at 3:37 PM Alexey Kardashevskiy wrote: >> >> On 10/07/2020 15:23, Oliver O'Halloran wrote: >>> There's an optimisation in the PE setup which skips performing DMA >>> setup for a PE if we only have bridges in a PE. The

Re: [PATCH 03/15] powerpc/powernv/pci: Add explicit tracking of the DMA setup state

2020-07-13 Thread Oliver O'Halloran
On Tue, Jul 14, 2020 at 3:37 PM Alexey Kardashevskiy wrote: > > On 10/07/2020 15:23, Oliver O'Halloran wrote: > > There's an optimisation in the PE setup which skips performing DMA > > setup for a PE if we only have bridges in a PE. The assumption being > > that only "real" devices will DMA to

Re: [PATCH 03/15] powerpc/powernv/pci: Add explicit tracking of the DMA setup state

2020-07-13 Thread Alexey Kardashevskiy
On 10/07/2020 15:23, Oliver O'Halloran wrote: > There's an optimisation in the PE setup which skips performing DMA > setup for a PE if we only have bridges in a PE. The assumption being > that only "real" devices will DMA to system memory, which is probably > fair. However, if we start off with

[PATCH 03/15] powerpc/powernv/pci: Add explicit tracking of the DMA setup state

2020-07-09 Thread Oliver O'Halloran
There's an optimisation in the PE setup which skips performing DMA setup for a PE if we only have bridges in a PE. The assumption being that only "real" devices will DMA to system memory, which is probably fair. However, if we start off with only bridge devices in a PE then add a non-bridge device