From: Thomas Zimmermann <tzimmermann@suse.de> To: Daniel Vetter <daniel.vetter@ffwll.ch>, DRI Development <dri-devel@lists.freedesktop.org> Cc: Daniel Vetter <daniel.vetter@intel.com>, Intel Graphics Development <intel-gfx@lists.freedesktop.org>, Gerd Hoffmann <kraxel@redhat.com> Subject: Re: [PATCH 7/9] drm/shmem-helpers: Redirect mmap for imported dma-buf Date: Thu, 14 May 2020 09:23:37 +0200 [thread overview] Message-ID: <0032ff1a-c2a3-23ec-79e1-342bacaf9b33@suse.de> (raw) In-Reply-To: <20200511093554.211493-8-daniel.vetter@ffwll.ch> [-- Attachment #1.1.1: Type: text/plain, Size: 1736 bytes --] Hi Am 11.05.20 um 11:35 schrieb Daniel Vetter: > Currently this seems to work by converting the sgt into a pages array, > and then treating it like a native object. Do the right thing and > redirect mmap to the exporter. > > With this nothing is calling get_pages anymore on imported dma-buf, > and we can start to remove the use of the ->pages array for that case. > > v2: Rebase > > Cc: Gerd Hoffmann <kraxel@redhat.com> > Cc: Rob Herring <robh@kernel.org> > Cc: Noralf Trønnes <noralf@tronnes.org> > Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> > --- > drivers/gpu/drm/drm_gem_shmem_helper.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/drivers/gpu/drm/drm_gem_shmem_helper.c b/drivers/gpu/drm/drm_gem_shmem_helper.c > index b9cba5cc61c3..117a7841e284 100644 > --- a/drivers/gpu/drm/drm_gem_shmem_helper.c > +++ b/drivers/gpu/drm/drm_gem_shmem_helper.c > @@ -551,6 +551,9 @@ int drm_gem_shmem_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma) > /* Remove the fake offset */ > vma->vm_pgoff -= drm_vma_node_start(&obj->vma_node); > > + if (obj->import_attach) > + return dma_buf_mmap(obj->dma_buf, vma, 0); > + Just a question: how does it work with the fake value in vm_pgoffset? The offset is a DRM-specific thing and the dma-buf exporter expects the real offset? With this question clarified: Acked-by: Thomas Zimmermann <tzimmermann@suse.de> > shmem = to_drm_gem_shmem_obj(obj); > > ret = drm_gem_shmem_get_pages(shmem); > -- Thomas Zimmermann Graphics Driver Developer SUSE Software Solutions Germany GmbH Maxfeldstr. 5, 90409 Nürnberg, Germany (HRB 36809, AG Nürnberg) Geschäftsführer: Felix Imendörffer [-- Attachment #1.2: OpenPGP digital signature --] [-- Type: application/pgp-signature, Size: 488 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
WARNING: multiple messages have this Message-ID (diff)
From: Thomas Zimmermann <tzimmermann@suse.de> To: Daniel Vetter <daniel.vetter@ffwll.ch>, DRI Development <dri-devel@lists.freedesktop.org> Cc: Daniel Vetter <daniel.vetter@intel.com>, Intel Graphics Development <intel-gfx@lists.freedesktop.org>, Gerd Hoffmann <kraxel@redhat.com> Subject: Re: [Intel-gfx] [PATCH 7/9] drm/shmem-helpers: Redirect mmap for imported dma-buf Date: Thu, 14 May 2020 09:23:37 +0200 [thread overview] Message-ID: <0032ff1a-c2a3-23ec-79e1-342bacaf9b33@suse.de> (raw) In-Reply-To: <20200511093554.211493-8-daniel.vetter@ffwll.ch> [-- Attachment #1.1.1: Type: text/plain, Size: 1736 bytes --] Hi Am 11.05.20 um 11:35 schrieb Daniel Vetter: > Currently this seems to work by converting the sgt into a pages array, > and then treating it like a native object. Do the right thing and > redirect mmap to the exporter. > > With this nothing is calling get_pages anymore on imported dma-buf, > and we can start to remove the use of the ->pages array for that case. > > v2: Rebase > > Cc: Gerd Hoffmann <kraxel@redhat.com> > Cc: Rob Herring <robh@kernel.org> > Cc: Noralf Trønnes <noralf@tronnes.org> > Signed-off-by: Daniel Vetter <daniel.vetter@intel.com> > --- > drivers/gpu/drm/drm_gem_shmem_helper.c | 3 +++ > 1 file changed, 3 insertions(+) > > diff --git a/drivers/gpu/drm/drm_gem_shmem_helper.c b/drivers/gpu/drm/drm_gem_shmem_helper.c > index b9cba5cc61c3..117a7841e284 100644 > --- a/drivers/gpu/drm/drm_gem_shmem_helper.c > +++ b/drivers/gpu/drm/drm_gem_shmem_helper.c > @@ -551,6 +551,9 @@ int drm_gem_shmem_mmap(struct drm_gem_object *obj, struct vm_area_struct *vma) > /* Remove the fake offset */ > vma->vm_pgoff -= drm_vma_node_start(&obj->vma_node); > > + if (obj->import_attach) > + return dma_buf_mmap(obj->dma_buf, vma, 0); > + Just a question: how does it work with the fake value in vm_pgoffset? The offset is a DRM-specific thing and the dma-buf exporter expects the real offset? With this question clarified: Acked-by: Thomas Zimmermann <tzimmermann@suse.de> > shmem = to_drm_gem_shmem_obj(obj); > > ret = drm_gem_shmem_get_pages(shmem); > -- Thomas Zimmermann Graphics Driver Developer SUSE Software Solutions Germany GmbH Maxfeldstr. 5, 90409 Nürnberg, Germany (HRB 36809, AG Nürnberg) Geschäftsführer: Felix Imendörffer [-- Attachment #1.2: OpenPGP digital signature --] [-- Type: application/pgp-signature, Size: 488 bytes --] [-- Attachment #2: Type: text/plain, Size: 160 bytes --] _______________________________________________ Intel-gfx mailing list Intel-gfx@lists.freedesktop.org https://lists.freedesktop.org/mailman/listinfo/intel-gfx
next prev parent reply other threads:[~2020-05-14 7:23 UTC|newest] Thread overview: 104+ messages / expand[flat|nested] mbox.gz Atom feed top 2020-05-11 9:35 [PATCH 0/9] shmem helper untangling Daniel Vetter 2020-05-11 9:35 ` [Intel-gfx] " Daniel Vetter 2020-05-11 9:35 ` [PATCH 1/9] drm/msm: Don't call dma_buf_vunmap without _vmap Daniel Vetter 2020-05-11 9:35 ` [Intel-gfx] " Daniel Vetter 2020-05-11 9:35 ` Daniel Vetter 2020-05-11 15:24 ` Rob Clark 2020-05-11 15:24 ` [Intel-gfx] " Rob Clark 2020-05-11 15:24 ` Rob Clark 2020-05-11 15:28 ` Daniel Vetter 2020-05-11 15:28 ` [Intel-gfx] " Daniel Vetter 2020-05-11 15:28 ` Daniel Vetter 2020-05-11 20:36 ` Rob Clark 2020-05-11 20:36 ` [Intel-gfx] " Rob Clark 2020-05-11 20:36 ` Rob Clark 2020-05-14 20:11 ` [PATCH] " Daniel Vetter 2020-05-14 20:11 ` Daniel Vetter 2020-05-28 8:29 ` Daniel Vetter 2020-05-28 8:29 ` Daniel Vetter 2020-05-31 16:02 ` Rob Clark 2020-05-31 16:02 ` Rob Clark 2020-06-03 12:46 ` Daniel Vetter 2020-06-03 12:46 ` Daniel Vetter 2020-05-11 9:35 ` [PATCH 2/9] drm/gem: WARN if drm_gem_get_pages is called on a private obj Daniel Vetter 2020-05-11 9:35 ` [Intel-gfx] " Daniel Vetter 2020-05-14 7:45 ` Thomas Zimmermann 2020-05-14 7:45 ` [Intel-gfx] " Thomas Zimmermann 2020-05-11 9:35 ` [PATCH 3/9] drm/doc: Some polish for shmem helpers Daniel Vetter 2020-05-11 9:35 ` [Intel-gfx] " Daniel Vetter 2020-05-11 11:12 ` Thomas Zimmermann 2020-05-11 11:12 ` [Intel-gfx] " Thomas Zimmermann 2020-05-14 20:05 ` Daniel Vetter 2020-05-14 20:05 ` [Intel-gfx] " Daniel Vetter 2020-05-15 6:26 ` Thomas Zimmermann 2020-05-15 6:26 ` [Intel-gfx] " Thomas Zimmermann 2020-05-11 9:35 ` [PATCH 4/9] drm/virtio: Call the right " Daniel Vetter 2020-05-11 9:35 ` [Intel-gfx] " Daniel Vetter 2020-05-11 9:35 ` Daniel Vetter 2020-05-14 7:46 ` Thomas Zimmermann 2020-05-14 7:46 ` [Intel-gfx] " Thomas Zimmermann 2020-05-14 7:46 ` Thomas Zimmermann 2020-05-11 9:35 ` [PATCH 5/9] drm/udl: Don't call get/put_pages on imported dma-buf Daniel Vetter 2020-05-11 9:35 ` [Intel-gfx] " Daniel Vetter 2020-05-11 11:23 ` Thomas Zimmermann 2020-05-11 11:23 ` [Intel-gfx] " Thomas Zimmermann 2020-05-11 11:37 ` Daniel Vetter 2020-05-11 11:37 ` [Intel-gfx] " Daniel Vetter 2020-05-11 12:04 ` Thomas Zimmermann 2020-05-11 12:04 ` [Intel-gfx] " Thomas Zimmermann 2020-05-14 7:25 ` Thomas Zimmermann 2020-05-14 7:25 ` [Intel-gfx] " Thomas Zimmermann 2020-05-14 12:47 ` Daniel Vetter 2020-05-14 12:47 ` [Intel-gfx] " Daniel Vetter 2020-06-03 12:57 ` Daniel Vetter 2020-06-03 12:57 ` [Intel-gfx] " Daniel Vetter 2020-05-11 9:35 ` [PATCH 6/9] drm/shmem-helpers: Don't call get/put_pages on imported dma-buf in vmap Daniel Vetter 2020-05-11 9:35 ` [Intel-gfx] " Daniel Vetter 2020-05-14 7:16 ` Thomas Zimmermann 2020-05-14 7:16 ` [Intel-gfx] " Thomas Zimmermann 2020-05-14 12:49 ` Daniel Vetter 2020-05-14 12:49 ` [Intel-gfx] " Daniel Vetter 2020-05-14 20:22 ` [PATCH] " Daniel Vetter 2020-05-11 9:35 ` [PATCH 7/9] drm/shmem-helpers: Redirect mmap for imported dma-buf Daniel Vetter 2020-05-11 9:35 ` [Intel-gfx] " Daniel Vetter 2020-05-14 7:23 ` Thomas Zimmermann [this message] 2020-05-14 7:23 ` Thomas Zimmermann 2020-05-14 12:47 ` Daniel Vetter 2020-05-14 12:47 ` [Intel-gfx] " Daniel Vetter 2020-05-27 18:32 ` Thomas Zimmermann 2020-05-27 18:32 ` [Intel-gfx] " Thomas Zimmermann 2020-05-27 19:34 ` Daniel Vetter 2020-05-27 19:34 ` [Intel-gfx] " Daniel Vetter 2020-05-28 12:53 ` Thomas Zimmermann 2020-05-28 12:53 ` [Intel-gfx] " Thomas Zimmermann 2020-05-11 9:35 ` [PATCH 8/9] drm/shmem-helpers: Ensure get_pages is not called on " Daniel Vetter 2020-05-11 9:35 ` [Intel-gfx] " Daniel Vetter 2020-05-14 7:30 ` Thomas Zimmermann 2020-05-14 7:30 ` [Intel-gfx] " Thomas Zimmermann 2020-06-03 13:12 ` Daniel Vetter 2020-06-03 13:12 ` [Intel-gfx] " Daniel Vetter 2020-06-08 14:40 ` Thomas Zimmermann 2020-06-08 14:40 ` [Intel-gfx] " Thomas Zimmermann 2020-06-08 15:04 ` Daniel Vetter 2020-06-08 15:04 ` [Intel-gfx] " Daniel Vetter 2020-05-11 9:35 ` [PATCH 9/9] drm/shmem-helpers: Simplify dma-buf importing Daniel Vetter 2020-05-11 9:35 ` [Intel-gfx] " Daniel Vetter 2020-05-14 7:44 ` Thomas Zimmermann 2020-05-14 7:44 ` [Intel-gfx] " Thomas Zimmermann 2020-05-14 12:55 ` Daniel Vetter 2020-05-14 12:55 ` [Intel-gfx] " Daniel Vetter 2020-05-14 15:26 ` Thomas Zimmermann 2020-05-14 15:26 ` [Intel-gfx] " Thomas Zimmermann 2020-05-20 18:02 ` [PATCH] " Daniel Vetter 2020-05-29 13:34 ` Boris Brezillon 2020-05-29 13:35 ` Boris Brezillon 2020-05-29 13:49 ` Boris Brezillon 2020-05-29 14:05 ` Daniel Vetter 2020-05-29 14:36 ` Boris Brezillon 2020-06-15 8:23 ` [PATCH 9/9] " Thomas Zimmermann 2020-06-15 8:23 ` [Intel-gfx] " Thomas Zimmermann 2020-05-11 11:32 ` [Intel-gfx] ✗ Fi.CI.CHECKPATCH: warning for shmem helper untangling Patchwork 2020-05-11 11:56 ` [Intel-gfx] ✓ Fi.CI.BAT: success " Patchwork 2020-05-11 14:30 ` [Intel-gfx] ✓ Fi.CI.IGT: " Patchwork 2020-05-29 13:52 ` [PATCH 0/9] " Boris Brezillon 2020-05-29 13:52 ` [Intel-gfx] " Boris Brezillon
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