RE: [PATCH] Whitelist AMD host bridge device(s) to enable P2P DMA

2021-08-11 Thread Errabolu, Ramesh
abolu, Ramesh ; amd-gfx list ; Maling list - DRI developers ; Bjorn Helgaas ; Linux PCI ; LKML Subject: Re: [PATCH] Whitelist AMD host bridge device(s) to enable P2P DMA [CAUTION: External Email] On Wed, Aug 11, 2021 at 4:50 PM Felix Kuehling wrote: > > > Am 2021-08-11 um 3:29 p.m. schrie

Re: [PATCH] Whitelist AMD host bridge device(s) to enable P2P DMA

2021-08-11 Thread Alex Deucher
On Wed, Aug 11, 2021 at 4:50 PM Felix Kuehling wrote: > > > Am 2021-08-11 um 3:29 p.m. schrieb Alex Deucher: > > On Wed, Aug 11, 2021 at 3:11 PM Ramesh Errabolu > > wrote: > >> Current implementation will disallow P2P DMA if the participating > >> devices belong to different root complexes. Impl

Re: [PATCH] Whitelist AMD host bridge device(s) to enable P2P DMA

2021-08-11 Thread Felix Kuehling
Am 2021-08-11 um 3:29 p.m. schrieb Alex Deucher: > On Wed, Aug 11, 2021 at 3:11 PM Ramesh Errabolu > wrote: >> Current implementation will disallow P2P DMA if the participating >> devices belong to different root complexes. Implementation allows >> this default behavior to be overridden for whi

Re: [PATCH] Whitelist AMD host bridge device(s) to enable P2P DMA

2021-08-11 Thread Alex Deucher
On Wed, Aug 11, 2021 at 3:11 PM Ramesh Errabolu wrote: > > Current implementation will disallow P2P DMA if the participating > devices belong to different root complexes. Implementation allows > this default behavior to be overridden for whitelisted devices. The > patch adds an AMD host bridge to

[PATCH] Whitelist AMD host bridge device(s) to enable P2P DMA

2021-08-11 Thread Ramesh Errabolu
Current implementation will disallow P2P DMA if the participating devices belong to different root complexes. Implementation allows this default behavior to be overridden for whitelisted devices. The patch adds an AMD host bridge to be whitelisted Signed-off-by: Ramesh Errabolu --- drivers/pci/p