From: Jason Gunthorpe <jgg@ziepe.ca>
To: Daniel Vetter <daniel@ffwll.ch>
Cc: Jianxin Xiong <jianxin.xiong@intel.com>,
linux-rdma@vger.kernel.org, dri-devel@lists.freedesktop.org,
Leon Romanovsky <leon@kernel.org>,
Doug Ledford <dledford@redhat.com>,
Daniel Vetter <daniel.vetter@intel.com>,
Christian Koenig <christian.koenig@amd.com>
Subject: Re: [PATCH rdma-core v3 4/6] pyverbs: Add dma-buf based MR support
Date: Mon, 30 Nov 2020 11:55:44 -0400 [thread overview]
Message-ID: <20201130155544.GA5487@ziepe.ca> (raw)
In-Reply-To: <20201130145741.GP401619@phenom.ffwll.local>
On Mon, Nov 30, 2020 at 03:57:41PM +0100, Daniel Vetter wrote:
> > + err = ioctl(dri->fd, DRM_IOCTL_AMDGPU_GEM_CREATE, &gem_create);
> > + if (err)
> > + return err;
> > +
> > + *handle = gem_create.out.handle;
> > + return 0;
> > +}
> > +
> > +static int radeon_alloc(struct dri *dri, size_t size, uint32_t *handle)
>
> Tbh radeon chips are old enough I wouldn't care. Also doesn't support p2p
> dma-buf, so always going to be in system memory when you share. Plus you
> also need some more flags like I suggested above I think.
What about nouveau?
Jason
WARNING: multiple messages have this Message-ID (diff)
From: Jason Gunthorpe <jgg@ziepe.ca>
To: Daniel Vetter <daniel@ffwll.ch>
Cc: Leon Romanovsky <leon@kernel.org>,
linux-rdma@vger.kernel.org, dri-devel@lists.freedesktop.org,
Doug Ledford <dledford@redhat.com>,
Daniel Vetter <daniel.vetter@intel.com>,
Christian Koenig <christian.koenig@amd.com>,
Jianxin Xiong <jianxin.xiong@intel.com>
Subject: Re: [PATCH rdma-core v3 4/6] pyverbs: Add dma-buf based MR support
Date: Mon, 30 Nov 2020 11:55:44 -0400 [thread overview]
Message-ID: <20201130155544.GA5487@ziepe.ca> (raw)
In-Reply-To: <20201130145741.GP401619@phenom.ffwll.local>
On Mon, Nov 30, 2020 at 03:57:41PM +0100, Daniel Vetter wrote:
> > + err = ioctl(dri->fd, DRM_IOCTL_AMDGPU_GEM_CREATE, &gem_create);
> > + if (err)
> > + return err;
> > +
> > + *handle = gem_create.out.handle;
> > + return 0;
> > +}
> > +
> > +static int radeon_alloc(struct dri *dri, size_t size, uint32_t *handle)
>
> Tbh radeon chips are old enough I wouldn't care. Also doesn't support p2p
> dma-buf, so always going to be in system memory when you share. Plus you
> also need some more flags like I suggested above I think.
What about nouveau?
Jason
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next prev parent reply other threads:[~2020-11-30 15:56 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-11-27 20:55 [PATCH rdma-core v3 0/6] Add user space dma-buf support Jianxin Xiong
2020-11-27 20:55 ` Jianxin Xiong
2020-11-27 20:55 ` [PATCH rdma-core v3 1/6] Update kernel headers Jianxin Xiong
2020-11-27 20:55 ` Jianxin Xiong
2020-11-27 20:55 ` [PATCH rdma-core v3 2/6] verbs: Support dma-buf based memory region Jianxin Xiong
2020-11-27 20:55 ` Jianxin Xiong
2020-12-02 16:33 ` Yishai Hadas
2020-12-02 16:33 ` Yishai Hadas
2020-11-27 20:55 ` [PATCH rdma-core v3 3/6] mlx5: " Jianxin Xiong
2020-11-27 20:55 ` Jianxin Xiong
2020-11-27 20:55 ` [PATCH rdma-core v3 4/6] pyverbs: Add dma-buf based MR support Jianxin Xiong
2020-11-27 20:55 ` Jianxin Xiong
2020-11-30 14:57 ` Daniel Vetter
2020-11-30 14:57 ` Daniel Vetter
2020-11-30 15:55 ` Jason Gunthorpe [this message]
2020-11-30 15:55 ` Jason Gunthorpe
2020-11-30 16:04 ` Daniel Vetter
2020-11-30 16:04 ` Daniel Vetter
2020-11-30 16:36 ` Jason Gunthorpe
2020-11-30 16:36 ` Jason Gunthorpe
2020-11-30 16:55 ` Daniel Vetter
2020-11-30 16:55 ` Daniel Vetter
2020-11-30 18:03 ` Xiong, Jianxin
2020-11-30 18:03 ` Xiong, Jianxin
2020-11-30 18:13 ` Xiong, Jianxin
2020-11-30 18:13 ` Xiong, Jianxin
2020-11-30 16:08 ` Jason Gunthorpe
2020-11-30 16:08 ` Jason Gunthorpe
2020-11-30 17:53 ` Xiong, Jianxin
2020-11-30 17:53 ` Xiong, Jianxin
2020-12-02 0:39 ` Jason Gunthorpe
2020-12-02 0:39 ` Jason Gunthorpe
2020-12-02 1:12 ` Xiong, Jianxin
2020-12-02 1:12 ` Xiong, Jianxin
2020-11-27 20:55 ` [PATCH rdma-core v3 5/6] tests: Add tests for dma-buf based memory regions Jianxin Xiong
2020-11-27 20:55 ` Jianxin Xiong
2020-11-30 15:00 ` Daniel Vetter
2020-11-30 15:00 ` Daniel Vetter
2020-11-30 17:35 ` Xiong, Jianxin
2020-11-30 17:35 ` Xiong, Jianxin
2020-11-30 17:46 ` Daniel Vetter
2020-11-30 17:46 ` Daniel Vetter
2020-11-27 20:55 ` [PATCH rdma-core v3 6/6] tests: Bug fix for get_access_flags() Jianxin Xiong
2020-11-27 20:55 ` Jianxin Xiong
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