Re: [PATCH v2] PCI/P2PDMA: Allow P2PDMA on all AMD CPUs newer than the Zen family

2020-07-30 Thread Bjorn Helgaas
On Wed, Jul 29, 2020 at 05:18:44PM -0600, Logan Gunthorpe wrote: > In order to avoid needing to add every new AMD CPU host bridge to the list > every cycle, allow P2PDMA if the CPUs vendor is AMD and family is > greater than 0x17 (Zen). > > This should cut down a bunch of the churn adding to the

Re: [PATCH v2] PCI/P2PDMA: Allow P2PDMA on all AMD CPUs newer than the Zen family

2020-07-29 Thread Alex Deucher
On Wed, Jul 29, 2020 at 7:18 PM Logan Gunthorpe wrote: > > In order to avoid needing to add every new AMD CPU host bridge to the list > every cycle, allow P2PDMA if the CPUs vendor is AMD and family is > greater than 0x17 (Zen). Might want to say "greater than or equal to" to clarify that all

[PATCH v2] PCI/P2PDMA: Allow P2PDMA on all AMD CPUs newer than the Zen family

2020-07-29 Thread Logan Gunthorpe
In order to avoid needing to add every new AMD CPU host bridge to the list every cycle, allow P2PDMA if the CPUs vendor is AMD and family is greater than 0x17 (Zen). This should cut down a bunch of the churn adding to the list of allowed host bridges. Signed-off-by: Logan Gunthorpe Cc: Bjorn