* PCIe P2P access to GPU memory @ 2018-09-29 7:00 Dirk Eibach 2018-09-29 7:27 ` Koenig, Christian 0 siblings, 1 reply; 11+ messages in thread From: Dirk Eibach @ 2018-09-29 7:00 UTC (permalink / raw) To: dri-devel, christian.koenig I want to access GPU VRAM via PCIe P2P access, like DirectGMA but with mainline drivers. I can acquire a dmabuf from the GPU and pass it to my PCIe framegrabber. But I don't see a way to get the PCIe bus address of the video memory which I need for the P2P transfer. Is there already any infrastructure in place for doing this? If not, what would be the right way to implement this? Add another callback to the dmabuf struct? Cheers Dirk _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: PCIe P2P access to GPU memory 2018-09-29 7:00 PCIe P2P access to GPU memory Dirk Eibach @ 2018-09-29 7:27 ` Koenig, Christian 2018-09-29 8:17 ` Dirk Eibach 2018-10-03 7:14 ` Daniel Vetter 0 siblings, 2 replies; 11+ messages in thread From: Koenig, Christian @ 2018-09-29 7:27 UTC (permalink / raw) To: Dirk Eibach; +Cc: dri-devel@lists.freedesktop.org [-- Attachment #1.1: Type: text/plain, Size: 812 bytes --] This is work in progress. I published patches to enable DMA_buf P2P a few months ago, but now I'm waiting for the PCI subsystem to pick up core support for this. I can prepare you a branch based on current upstream kernel next week if you want to test this. Regards, Christian. Am 29.09.2018 09:01 schrieb Dirk Eibach <dirk.eibach@googlemail.com>: I want to access GPU VRAM via PCIe P2P access, like DirectGMA but with mainline drivers. I can acquire a dmabuf from the GPU and pass it to my PCIe framegrabber. But I don't see a way to get the PCIe bus address of the video memory which I need for the P2P transfer. Is there already any infrastructure in place for doing this? If not, what would be the right way to implement this? Add another callback to the dmabuf struct? Cheers Dirk [-- Attachment #1.2: Type: text/html, Size: 1586 bytes --] [-- Attachment #2: Type: text/plain, Size: 160 bytes --] _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: PCIe P2P access to GPU memory 2018-09-29 7:27 ` Koenig, Christian @ 2018-09-29 8:17 ` Dirk Eibach 2018-09-29 9:53 ` Dieter Nützel 2018-10-03 7:14 ` Daniel Vetter 1 sibling, 1 reply; 11+ messages in thread From: Dirk Eibach @ 2018-09-29 8:17 UTC (permalink / raw) To: Christian.Koenig; +Cc: dri-devel > This is work in progress. > > I published patches to enable DMA_buf P2P a few months ago, but now I'm waiting for the PCI subsystem to pick up core support for this. Great news! Can you give me a link to this series so I can already have a look? > I can prepare you a branch based on current upstream kernel next week if you want to test this. That would be awesome, thanks. Cheers Dirk _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: PCIe P2P access to GPU memory 2018-09-29 8:17 ` Dirk Eibach @ 2018-09-29 9:53 ` Dieter Nützel 2018-10-01 13:07 ` Dirk Eibach 0 siblings, 1 reply; 11+ messages in thread From: Dieter Nützel @ 2018-09-29 9:53 UTC (permalink / raw) To: Dirk Eibach; +Cc: Christian.Koenig, dri-devel Hello Dirk, I think Christian is talking about this branch: https://cgit.freedesktop.org/~deathsimple/linux/log/?h=p2p His 'home' is, here: https://cgit.freedesktop.org/~deathsimple/linux/ Happy hacking! ;-) Dieter Am 29.09.2018 10:17, schrieb Dirk Eibach: >> This is work in progress. >> >> I published patches to enable DMA_buf P2P a few months ago, but now >> I'm waiting for the PCI subsystem to pick up core support for this. > > Great news! Can you give me a link to this series so I can already have > a look? > >> I can prepare you a branch based on current upstream kernel next week >> if you want to test this. > > That would be awesome, thanks. > > Cheers > Dirk > _______________________________________________ > dri-devel mailing list > dri-devel@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/dri-devel _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: PCIe P2P access to GPU memory 2018-09-29 9:53 ` Dieter Nützel @ 2018-10-01 13:07 ` Dirk Eibach 2018-10-01 18:12 ` Christian König 0 siblings, 1 reply; 11+ messages in thread From: Dirk Eibach @ 2018-10-01 13:07 UTC (permalink / raw) To: Dieter; +Cc: Christian.Koenig, dri-devel Hi Christian, I took the repository Dieter suggested and gave it a spin. I am not sure, if I got the API right. In userspace I create a bo and get a fd. bo = gbm_bo_create(gbm, w, h, GBM_FORMAT_ARGB8888, GBM_BO_USE_LINEAR); dmabuf_fd = gbm_bo_get_fd(bo); Then I pass the fd to the grabber driver. There I get a sgt, that I want to pass to the DMA-machine. struct dma_buf_attach_info dma_buf_attach_info = { .dev = &engine->xdev->pdev->dev, .peer2peer = true, }; dma_buf = dma_buf_get(xdma_dma_buf_ioctl.dma_buf_fd); dma_buf_attach_info.dmabuf = dma_buf; dma_buf_attachment = dma_buf_attach(&dma_buf_attach_info); sgt = dma_buf_map_attachment(dma_buf_attachment, DMA_TO_DEVICE); But the addresses in the sgt do not look like PCIe addresses at at all. Any ideas? Cheers Dirk Am Sa., 29. Sep. 2018 um 11:53 Uhr schrieb Dieter Nützel <Dieter@nuetzel-hh.de>: > > Hello Dirk, > > I think Christian is talking about this branch: > > https://cgit.freedesktop.org/~deathsimple/linux/log/?h=p2p > > His 'home' is, here: > https://cgit.freedesktop.org/~deathsimple/linux/ > > Happy hacking! ;-) > > Dieter > > Am 29.09.2018 10:17, schrieb Dirk Eibach: > >> This is work in progress. > >> > >> I published patches to enable DMA_buf P2P a few months ago, but now > >> I'm waiting for the PCI subsystem to pick up core support for this. > > > > Great news! Can you give me a link to this series so I can already have > > a look? > > > >> I can prepare you a branch based on current upstream kernel next week > >> if you want to test this. > > > > That would be awesome, thanks. > > > > Cheers > > Dirk > > _______________________________________________ > > dri-devel mailing list > > dri-devel@lists.freedesktop.org > > https://lists.freedesktop.org/mailman/listinfo/dri-devel _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: PCIe P2P access to GPU memory 2018-10-01 13:07 ` Dirk Eibach @ 2018-10-01 18:12 ` Christian König 2018-10-01 18:47 ` Dirk Eibach 0 siblings, 1 reply; 11+ messages in thread From: Christian König @ 2018-10-01 18:12 UTC (permalink / raw) To: Dirk Eibach, Dieter; +Cc: dri-devel Hi Dirk, > Any ideas? Could be anything. Most likely cause is that some function things the two device can't communicate directly with each other. Please provide a full dmesg and "lspci -t -nn -v" as attachment and note which devices should communicate with which. I'm currently on vacation so it could take a while till I have time to look deeper into this. Christian. Am 01.10.2018 um 15:07 schrieb Dirk Eibach: > Hi Christian, > > I took the repository Dieter suggested and gave it a spin. I am not > sure, if I got the API right. > > In userspace I create a bo and get a fd. > bo = gbm_bo_create(gbm, w, h, GBM_FORMAT_ARGB8888, GBM_BO_USE_LINEAR); > dmabuf_fd = gbm_bo_get_fd(bo); > > Then I pass the fd to the grabber driver. There I get a sgt, that I > want to pass to the DMA-machine. > struct dma_buf_attach_info dma_buf_attach_info = { > .dev = &engine->xdev->pdev->dev, > .peer2peer = true, > }; > dma_buf = dma_buf_get(xdma_dma_buf_ioctl.dma_buf_fd); > dma_buf_attach_info.dmabuf = dma_buf; > dma_buf_attachment = dma_buf_attach(&dma_buf_attach_info); > sgt = dma_buf_map_attachment(dma_buf_attachment, DMA_TO_DEVICE); > > But the addresses in the sgt do not look like PCIe addresses at at all. > > Any ideas? > > Cheers > Dirk > Am Sa., 29. Sep. 2018 um 11:53 Uhr schrieb Dieter Nützel <Dieter@nuetzel-hh.de>: >> Hello Dirk, >> >> I think Christian is talking about this branch: >> >> https://cgit.freedesktop.org/~deathsimple/linux/log/?h=p2p >> >> His 'home' is, here: >> https://cgit.freedesktop.org/~deathsimple/linux/ >> >> Happy hacking! ;-) >> >> Dieter >> >> Am 29.09.2018 10:17, schrieb Dirk Eibach: >>>> This is work in progress. >>>> >>>> I published patches to enable DMA_buf P2P a few months ago, but now >>>> I'm waiting for the PCI subsystem to pick up core support for this. >>> Great news! Can you give me a link to this series so I can already have >>> a look? >>> >>>> I can prepare you a branch based on current upstream kernel next week >>>> if you want to test this. >>> That would be awesome, thanks. >>> >>> Cheers >>> Dirk >>> _______________________________________________ >>> dri-devel mailing list >>> dri-devel@lists.freedesktop.org >>> https://lists.freedesktop.org/mailman/listinfo/dri-devel _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: PCIe P2P access to GPU memory 2018-10-01 18:12 ` Christian König @ 2018-10-01 18:47 ` Dirk Eibach 0 siblings, 0 replies; 11+ messages in thread From: Dirk Eibach @ 2018-10-01 18:47 UTC (permalink / raw) To: Christian König; +Cc: dri-devel [-- Attachment #1.1: Type: text/plain, Size: 2584 bytes --] Hi Christian, Could I simply force it by overwriting peer2peer after the attach call? Cheers Dirk > Hi Dirk, > > > Any ideas? > Could be anything. Most likely cause is that some function things the > two device can't communicate directly with each other. > > Please provide a full dmesg and "lspci -t -nn -v" as attachment and note > which devices should communicate with which. > > I'm currently on vacation so it could take a while till I have time to > look deeper into this. > > Christian. > > Am 01.10.2018 um 15:07 schrieb Dirk Eibach: > > Hi Christian, > > > > I took the repository Dieter suggested and gave it a spin. I am not > > sure, if I got the API right. > > > > In userspace I create a bo and get a fd. > > bo = gbm_bo_create(gbm, w, h, GBM_FORMAT_ARGB8888, GBM_BO_USE_LINEAR); > > dmabuf_fd = gbm_bo_get_fd(bo); > > > > Then I pass the fd to the grabber driver. There I get a sgt, that I > > want to pass to the DMA-machine. > > struct dma_buf_attach_info dma_buf_attach_info = { > > .dev = &engine->xdev->pdev->dev, > > .peer2peer = true, > > }; > > dma_buf = dma_buf_get(xdma_dma_buf_ioctl.dma_buf_fd); > > dma_buf_attach_info.dmabuf = dma_buf; > > dma_buf_attachment = dma_buf_attach(&dma_buf_attach_info); > > sgt = dma_buf_map_attachment(dma_buf_attachment, DMA_TO_DEVICE); > > > > But the addresses in the sgt do not look like PCIe addresses at at all. > > > > Any ideas? > > > > Cheers > > Dirk > > Am Sa., 29. Sep. 2018 um 11:53 Uhr schrieb Dieter Nützel < > Dieter@nuetzel-hh.de>: > >> Hello Dirk, > >> > >> I think Christian is talking about this branch: > >> > >> https://cgit.freedesktop.org/~deathsimple/linux/log/?h=p2p > >> > >> His 'home' is, here: > >> https://cgit.freedesktop.org/~deathsimple/linux/ > >> > >> Happy hacking! ;-) > >> > >> Dieter > >> > >> Am 29.09.2018 10:17, schrieb Dirk Eibach: > >>>> This is work in progress. > >>>> > >>>> I published patches to enable DMA_buf P2P a few months ago, but now > >>>> I'm waiting for the PCI subsystem to pick up core support for this. > >>> Great news! Can you give me a link to this series so I can already have > >>> a look? > >>> > >>>> I can prepare you a branch based on current upstream kernel next week > >>>> if you want to test this. > >>> That would be awesome, thanks. > >>> > >>> Cheers > >>> Dirk > >>> _______________________________________________ > >>> dri-devel mailing list > >>> dri-devel@lists.freedesktop.org > >>> https://lists.freedesktop.org/mailman/listinfo/dri-devel > > [-- Attachment #1.2: Type: text/html, Size: 4009 bytes --] [-- Attachment #2: Type: text/plain, Size: 160 bytes --] _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: PCIe P2P access to GPU memory 2018-09-29 7:27 ` Koenig, Christian 2018-09-29 8:17 ` Dirk Eibach @ 2018-10-03 7:14 ` Daniel Vetter 2018-10-03 8:54 ` Koenig, Christian 1 sibling, 1 reply; 11+ messages in thread From: Daniel Vetter @ 2018-10-03 7:14 UTC (permalink / raw) To: Christian König; +Cc: dirk.eibach, dri-devel On Sat, Sep 29, 2018 at 9:27 AM Koenig, Christian <Christian.Koenig@amd.com> wrote: > > This is work in progress. > > I published patches to enable DMA_buf P2P a few months ago, but now I'm waiting for the PCI subsystem to pick up core support for this. > > I can prepare you a branch based on current upstream kernel next week if you want to test this. Thread hijack, since I just read the lwn article on p2p for storage folks: https://lwn.net/Articles/767281/ Totally doesn't match what I remember of your dma-buf p2p work. Do we need to rework, or is this some kind of higher-level interface on top of the raw p2p pci stuff? Or do I misremember. Thanks, Daniel > > Regards, > Christian. > > Am 29.09.2018 09:01 schrieb Dirk Eibach <dirk.eibach@googlemail.com>: > I want to access GPU VRAM via PCIe P2P access, like DirectGMA but with > mainline drivers. > I can acquire a dmabuf from the GPU and pass it to my PCIe > framegrabber. But I don't see a way to get the PCIe bus address of the > video memory which I need for the P2P transfer. Is there already any > infrastructure in place for doing this? If not, what would be the > right way to implement this? Add another callback to the dmabuf > struct? > > Cheers > Dirk > _______________________________________________ > dri-devel mailing list > dri-devel@lists.freedesktop.org > https://lists.freedesktop.org/mailman/listinfo/dri-devel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: PCIe P2P access to GPU memory 2018-10-03 7:14 ` Daniel Vetter @ 2018-10-03 8:54 ` Koenig, Christian 2018-10-03 9:06 ` Daniel Vetter 0 siblings, 1 reply; 11+ messages in thread From: Koenig, Christian @ 2018-10-03 8:54 UTC (permalink / raw) To: Daniel Vetter; +Cc: dirk.eibach@googlemail.com, dri-devel Am 03.10.2018 um 09:14 schrieb Daniel Vetter: > On Sat, Sep 29, 2018 at 9:27 AM Koenig, Christian > <Christian.Koenig@amd.com> wrote: >> This is work in progress. >> >> I published patches to enable DMA_buf P2P a few months ago, but now I'm waiting for the PCI subsystem to pick up core support for this. >> >> I can prepare you a branch based on current upstream kernel next week if you want to test this. > Thread hijack, since I just read the lwn article on p2p for storage folks: > > https://lwn.net/Articles/767281/ > > Totally doesn't match what I remember of your dma-buf p2p work. Do we > need to rework, or is this some kind of higher-level interface on top > of the raw p2p pci stuff? Or do I misremember. The P2P from the storage folks are some mix of raw p2p capability detection for PCI and higher level interface. I'm actually waiting for that stuff to land to extract the p2p capability detection and use it for this DMA-buf stuff as well. Alternative would be to convince Logan to extract the capability detection in his patch set as well, but so far he wasn't very keen about that. Christian. > > Thanks, Daniel > >> Regards, >> Christian. >> >> Am 29.09.2018 09:01 schrieb Dirk Eibach <dirk.eibach@googlemail.com>: >> I want to access GPU VRAM via PCIe P2P access, like DirectGMA but with >> mainline drivers. >> I can acquire a dmabuf from the GPU and pass it to my PCIe >> framegrabber. But I don't see a way to get the PCIe bus address of the >> video memory which I need for the P2P transfer. Is there already any >> infrastructure in place for doing this? If not, what would be the >> right way to implement this? Add another callback to the dmabuf >> struct? >> >> Cheers >> Dirk >> _______________________________________________ >> dri-devel mailing list >> dri-devel@lists.freedesktop.org >> https://lists.freedesktop.org/mailman/listinfo/dri-devel > > _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: PCIe P2P access to GPU memory 2018-10-03 8:54 ` Koenig, Christian @ 2018-10-03 9:06 ` Daniel Vetter 2018-10-03 13:37 ` Christian König 0 siblings, 1 reply; 11+ messages in thread From: Daniel Vetter @ 2018-10-03 9:06 UTC (permalink / raw) To: Koenig, Christian; +Cc: dirk.eibach@googlemail.com, dri-devel On Wed, Oct 03, 2018 at 08:54:44AM +0000, Koenig, Christian wrote: > Am 03.10.2018 um 09:14 schrieb Daniel Vetter: > > On Sat, Sep 29, 2018 at 9:27 AM Koenig, Christian > > <Christian.Koenig@amd.com> wrote: > >> This is work in progress. > >> > >> I published patches to enable DMA_buf P2P a few months ago, but now I'm waiting for the PCI subsystem to pick up core support for this. > >> > >> I can prepare you a branch based on current upstream kernel next week if you want to test this. > > Thread hijack, since I just read the lwn article on p2p for storage folks: > > > > https://lwn.net/Articles/767281/ > > > > Totally doesn't match what I remember of your dma-buf p2p work. Do we > > need to rework, or is this some kind of higher-level interface on top > > of the raw p2p pci stuff? Or do I misremember. > > The P2P from the storage folks are some mix of raw p2p capability > detection for PCI and higher level interface. > > I'm actually waiting for that stuff to land to extract the p2p > capability detection and use it for this DMA-buf stuff as well. > > Alternative would be to convince Logan to extract the capability > detection in his patch set as well, but so far he wasn't very keen about > that. So no plan to make dma-buf some kind of orchestrator and use the p2p map_sg stuff? That seems to be the new/additional bits I haven't seen yet, and I'm wondered how we should fit dma-buf into that picture. -Daniel > > Christian. > > > > > Thanks, Daniel > > > >> Regards, > >> Christian. > >> > >> Am 29.09.2018 09:01 schrieb Dirk Eibach <dirk.eibach@googlemail.com>: > >> I want to access GPU VRAM via PCIe P2P access, like DirectGMA but with > >> mainline drivers. > >> I can acquire a dmabuf from the GPU and pass it to my PCIe > >> framegrabber. But I don't see a way to get the PCIe bus address of the > >> video memory which I need for the P2P transfer. Is there already any > >> infrastructure in place for doing this? If not, what would be the > >> right way to implement this? Add another callback to the dmabuf > >> struct? > >> > >> Cheers > >> Dirk > >> _______________________________________________ > >> dri-devel mailing list > >> dri-devel@lists.freedesktop.org > >> https://lists.freedesktop.org/mailman/listinfo/dri-devel > > > > > -- Daniel Vetter Software Engineer, Intel Corporation http://blog.ffwll.ch _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel ^ permalink raw reply [flat|nested] 11+ messages in thread
* Re: PCIe P2P access to GPU memory 2018-10-03 9:06 ` Daniel Vetter @ 2018-10-03 13:37 ` Christian König 0 siblings, 0 replies; 11+ messages in thread From: Christian König @ 2018-10-03 13:37 UTC (permalink / raw) To: Daniel Vetter, Koenig, Christian; +Cc: dirk.eibach@googlemail.com, dri-devel Am 03.10.2018 um 11:06 schrieb Daniel Vetter: > On Wed, Oct 03, 2018 at 08:54:44AM +0000, Koenig, Christian wrote: >> Am 03.10.2018 um 09:14 schrieb Daniel Vetter: >>> On Sat, Sep 29, 2018 at 9:27 AM Koenig, Christian >>> <Christian.Koenig@amd.com> wrote: >>>> This is work in progress. >>>> >>>> I published patches to enable DMA_buf P2P a few months ago, but now I'm waiting for the PCI subsystem to pick up core support for this. >>>> >>>> I can prepare you a branch based on current upstream kernel next week if you want to test this. >>> Thread hijack, since I just read the lwn article on p2p for storage folks: >>> >>> https://lwn.net/Articles/767281/ >>> >>> Totally doesn't match what I remember of your dma-buf p2p work. Do we >>> need to rework, or is this some kind of higher-level interface on top >>> of the raw p2p pci stuff? Or do I misremember. >> The P2P from the storage folks are some mix of raw p2p capability >> detection for PCI and higher level interface. >> >> I'm actually waiting for that stuff to land to extract the p2p >> capability detection and use it for this DMA-buf stuff as well. >> >> Alternative would be to convince Logan to extract the capability >> detection in his patch set as well, but so far he wasn't very keen about >> that. > So no plan to make dma-buf some kind of orchestrator and use the p2p > map_sg stuff? Not sure about that yet. Didn't had time to take a closer look. Christian. > That seems to be the new/additional bits I haven't seen yet, > and I'm wondered how we should fit dma-buf into that picture. > -Daniel > >> Christian. >> >>> Thanks, Daniel >>> >>>> Regards, >>>> Christian. >>>> >>>> Am 29.09.2018 09:01 schrieb Dirk Eibach <dirk.eibach@googlemail.com>: >>>> I want to access GPU VRAM via PCIe P2P access, like DirectGMA but with >>>> mainline drivers. >>>> I can acquire a dmabuf from the GPU and pass it to my PCIe >>>> framegrabber. But I don't see a way to get the PCIe bus address of the >>>> video memory which I need for the P2P transfer. Is there already any >>>> infrastructure in place for doing this? If not, what would be the >>>> right way to implement this? Add another callback to the dmabuf >>>> struct? >>>> >>>> Cheers >>>> Dirk >>>> _______________________________________________ >>>> dri-devel mailing list >>>> dri-devel@lists.freedesktop.org >>>> https://lists.freedesktop.org/mailman/listinfo/dri-devel >>> _______________________________________________ dri-devel mailing list dri-devel@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/dri-devel ^ permalink raw reply [flat|nested] 11+ messages in thread
end of thread, other threads:[~2018-10-03 13:37 UTC | newest] Thread overview: 11+ messages (download: mbox.gz follow: Atom feed -- links below jump to the message on this page -- 2018-09-29 7:00 PCIe P2P access to GPU memory Dirk Eibach 2018-09-29 7:27 ` Koenig, Christian 2018-09-29 8:17 ` Dirk Eibach 2018-09-29 9:53 ` Dieter Nützel 2018-10-01 13:07 ` Dirk Eibach 2018-10-01 18:12 ` Christian König 2018-10-01 18:47 ` Dirk Eibach 2018-10-03 7:14 ` Daniel Vetter 2018-10-03 8:54 ` Koenig, Christian 2018-10-03 9:06 ` Daniel Vetter 2018-10-03 13:37 ` Christian König
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