[PATCH 2/5] dma-buf: remove kmap_atomic interface
Christian König
christian.koenig at amd.com
Wed Jun 20 06:22:19 UTC 2018
Am 20.06.2018 um 08:10 schrieb Sumit Semwal:
> Hi Christian,
> On Tue, 19 Jun 2018 at 20:17, Christian König <christian.koenig at amd.com> wrote:
>> Am 18.06.2018 um 10:18 schrieb Daniel Vetter:
>>> On Fri, Jun 01, 2018 at 02:00:17PM +0200, Christian König wrote:
>>>> Neither used nor correctly implemented anywhere. Just completely remove
>>>> the interface.
>>>>
>>>> Signed-off-by: Christian König <christian.koenig at amd.com>
>>> I wonder whether we can nuke the normal kmap stuff too ... everyone seems
>>> to want/use the vmap stuff for kernel-internal mapping needs.
>>>
>>> Anyway, this looks good.
> Hope am not too late (was out of office for some time) - this looks ok
> to me, please feel free to add my
> Acked-by: Sumit Semwal <sumit.semwal at linaro.org>
No, you're not to late. I was actually holding back a bit because of
missing Ack's.
Thanks for the response,
Christian.
>
>>>> ---
>>>> drivers/dma-buf/dma-buf.c | 44 ----------------------
>>>> drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c | 2 -
>>>> drivers/gpu/drm/armada/armada_gem.c | 2 -
>>>> drivers/gpu/drm/drm_prime.c | 26 -------------
>>>> drivers/gpu/drm/i915/i915_gem_dmabuf.c | 11 ------
>>>> drivers/gpu/drm/i915/selftests/mock_dmabuf.c | 2 -
>>>> drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c | 2 -
>>>> drivers/gpu/drm/tegra/gem.c | 14 -------
>>>> drivers/gpu/drm/udl/udl_dmabuf.c | 17 ---------
>>>> drivers/gpu/drm/vmwgfx/vmwgfx_prime.c | 13 -------
>>>> .../media/common/videobuf2/videobuf2-dma-contig.c | 1 -
>>>> drivers/media/common/videobuf2/videobuf2-dma-sg.c | 1 -
>>>> drivers/media/common/videobuf2/videobuf2-vmalloc.c | 1 -
>>>> drivers/staging/android/ion/ion.c | 2 -
>>>> drivers/tee/tee_shm.c | 6 ---
>>>> include/drm/drm_prime.h | 4 --
>>>> include/linux/dma-buf.h | 4 --
>>>> 17 files changed, 152 deletions(-)
>>>>
>>>> diff --git a/drivers/dma-buf/dma-buf.c b/drivers/dma-buf/dma-buf.c
>>>> index e99a8d19991b..e4c657d9fad7 100644
>>>> --- a/drivers/dma-buf/dma-buf.c
>>>> +++ b/drivers/dma-buf/dma-buf.c
>>>> @@ -405,7 +405,6 @@ struct dma_buf *dma_buf_export(const struct dma_buf_export_info *exp_info)
>>>> || !exp_info->ops->map_dma_buf
>>>> || !exp_info->ops->unmap_dma_buf
>>>> || !exp_info->ops->release
>>>> - || !exp_info->ops->map_atomic
>>>> || !exp_info->ops->map
>>>> || !exp_info->ops->mmap)) {
>>>> return ERR_PTR(-EINVAL);
>>>> @@ -687,14 +686,6 @@ EXPORT_SYMBOL_GPL(dma_buf_unmap_attachment);
>>>> * void \*dma_buf_kmap(struct dma_buf \*, unsigned long);
>>>> * void dma_buf_kunmap(struct dma_buf \*, unsigned long, void \*);
>>>> *
>>>> - * There are also atomic variants of these interfaces. Like for kmap they
>>>> - * facilitate non-blocking fast-paths. Neither the importer nor the exporter
>>>> - * (in the callback) is allowed to block when using these.
>>>> - *
>>>> - * Interfaces::
>>>> - * void \*dma_buf_kmap_atomic(struct dma_buf \*, unsigned long);
>>>> - * void dma_buf_kunmap_atomic(struct dma_buf \*, unsigned long, void \*);
>>>> - *
>>>> * For importers all the restrictions of using kmap apply, like the limited
>>>> * supply of kmap_atomic slots. Hence an importer shall only hold onto at
>>>> * max 2 atomic dma_buf kmaps at the same time (in any given process context).
>>> This is also about atomic kmap ...
>>>
>>> And the subsequent language around "Note that these calls need to always
>>> succeed." is also not true, might be good to update that stating that kmap
>>> is optional (like we say already for vmap).
>>>
>>> With those docs nits addressed:
>>>
>>> Reviewed-by: Daniel Vetter <daniel.vetter at ffwll.ch>
>> I've fixed up patch #1 and #2 and added your Reviewed-by tag.
>>
>> Since I finally had time to install dim do you have any objections that
>> I now run "dim push drm-misc-next" with those two applied?
>>
>> Regards,
>> Christian.
>>
>>>> @@ -859,41 +850,6 @@ int dma_buf_end_cpu_access(struct dma_buf *dmabuf,
>>>> }
>>>> EXPORT_SYMBOL_GPL(dma_buf_end_cpu_access);
>>>>
>>>> -/**
>>>> - * dma_buf_kmap_atomic - Map a page of the buffer object into kernel address
>>>> - * space. The same restrictions as for kmap_atomic and friends apply.
>>>> - * @dmabuf: [in] buffer to map page from.
>>>> - * @page_num: [in] page in PAGE_SIZE units to map.
>>>> - *
>>>> - * This call must always succeed, any necessary preparations that might fail
>>>> - * need to be done in begin_cpu_access.
>>>> - */
>>>> -void *dma_buf_kmap_atomic(struct dma_buf *dmabuf, unsigned long page_num)
>>>> -{
>>>> - WARN_ON(!dmabuf);
>>>> -
>>>> - return dmabuf->ops->map_atomic(dmabuf, page_num);
>>>> -}
>>>> -EXPORT_SYMBOL_GPL(dma_buf_kmap_atomic);
>>>> -
>>>> -/**
>>>> - * dma_buf_kunmap_atomic - Unmap a page obtained by dma_buf_kmap_atomic.
>>>> - * @dmabuf: [in] buffer to unmap page from.
>>>> - * @page_num: [in] page in PAGE_SIZE units to unmap.
>>>> - * @vaddr: [in] kernel space pointer obtained from dma_buf_kmap_atomic.
>>>> - *
>>>> - * This call must always succeed.
>>>> - */
>>>> -void dma_buf_kunmap_atomic(struct dma_buf *dmabuf, unsigned long page_num,
>>>> - void *vaddr)
>>>> -{
>>>> - WARN_ON(!dmabuf);
>>>> -
>>>> - if (dmabuf->ops->unmap_atomic)
>>>> - dmabuf->ops->unmap_atomic(dmabuf, page_num, vaddr);
>>>> -}
>>>> -EXPORT_SYMBOL_GPL(dma_buf_kunmap_atomic);
>>>> -
>>>> /**
>>>> * dma_buf_kmap - Map a page of the buffer object into kernel address space. The
>>>> * same restrictions as for kmap and friends apply.
>>>> diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c
>>>> index f1500f1ec0f5..a156b3891a3f 100644
>>>> --- a/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c
>>>> +++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_prime.c
>>>> @@ -244,9 +244,7 @@ static const struct dma_buf_ops amdgpu_dmabuf_ops = {
>>>> .release = drm_gem_dmabuf_release,
>>>> .begin_cpu_access = amdgpu_gem_begin_cpu_access,
>>>> .map = drm_gem_dmabuf_kmap,
>>>> - .map_atomic = drm_gem_dmabuf_kmap_atomic,
>>>> .unmap = drm_gem_dmabuf_kunmap,
>>>> - .unmap_atomic = drm_gem_dmabuf_kunmap_atomic,
>>>> .mmap = drm_gem_dmabuf_mmap,
>>>> .vmap = drm_gem_dmabuf_vmap,
>>>> .vunmap = drm_gem_dmabuf_vunmap,
>>>> diff --git a/drivers/gpu/drm/armada/armada_gem.c b/drivers/gpu/drm/armada/armada_gem.c
>>>> index a97f509743a5..3fb37c75c065 100644
>>>> --- a/drivers/gpu/drm/armada/armada_gem.c
>>>> +++ b/drivers/gpu/drm/armada/armada_gem.c
>>>> @@ -490,8 +490,6 @@ static const struct dma_buf_ops armada_gem_prime_dmabuf_ops = {
>>>> .map_dma_buf = armada_gem_prime_map_dma_buf,
>>>> .unmap_dma_buf = armada_gem_prime_unmap_dma_buf,
>>>> .release = drm_gem_dmabuf_release,
>>>> - .map_atomic = armada_gem_dmabuf_no_kmap,
>>>> - .unmap_atomic = armada_gem_dmabuf_no_kunmap,
>>>> .map = armada_gem_dmabuf_no_kmap,
>>>> .unmap = armada_gem_dmabuf_no_kunmap,
>>>> .mmap = armada_gem_dmabuf_mmap,
>>>> diff --git a/drivers/gpu/drm/drm_prime.c b/drivers/gpu/drm/drm_prime.c
>>>> index 4a3a232fea67..b28fa8f44c8b 100644
>>>> --- a/drivers/gpu/drm/drm_prime.c
>>>> +++ b/drivers/gpu/drm/drm_prime.c
>>>> @@ -426,30 +426,6 @@ void drm_gem_dmabuf_vunmap(struct dma_buf *dma_buf, void *vaddr)
>>>> }
>>>> EXPORT_SYMBOL(drm_gem_dmabuf_vunmap);
>>>>
>>>> -/**
>>>> - * drm_gem_dmabuf_kmap_atomic - map_atomic implementation for GEM
>>>> - *
>>>> - * Not implemented. This can be used as the &dma_buf_ops.map_atomic callback.
>>>> - */
>>>> -void *drm_gem_dmabuf_kmap_atomic(struct dma_buf *dma_buf,
>>>> - unsigned long page_num)
>>>> -{
>>>> - return NULL;
>>>> -}
>>>> -EXPORT_SYMBOL(drm_gem_dmabuf_kmap_atomic);
>>>> -
>>>> -/**
>>>> - * drm_gem_dmabuf_kunmap_atomic - unmap_atomic implementation for GEM
>>>> - *
>>>> - * Not implemented. This can be used as the &dma_buf_ops.unmap_atomic callback.
>>>> - */
>>>> -void drm_gem_dmabuf_kunmap_atomic(struct dma_buf *dma_buf,
>>>> - unsigned long page_num, void *addr)
>>>> -{
>>>> -
>>>> -}
>>>> -EXPORT_SYMBOL(drm_gem_dmabuf_kunmap_atomic);
>>>> -
>>>> /**
>>>> * drm_gem_dmabuf_kmap - map implementation for GEM
>>>> *
>>>> @@ -502,9 +478,7 @@ static const struct dma_buf_ops drm_gem_prime_dmabuf_ops = {
>>>> .unmap_dma_buf = drm_gem_unmap_dma_buf,
>>>> .release = drm_gem_dmabuf_release,
>>>> .map = drm_gem_dmabuf_kmap,
>>>> - .map_atomic = drm_gem_dmabuf_kmap_atomic,
>>>> .unmap = drm_gem_dmabuf_kunmap,
>>>> - .unmap_atomic = drm_gem_dmabuf_kunmap_atomic,
>>>> .mmap = drm_gem_dmabuf_mmap,
>>>> .vmap = drm_gem_dmabuf_vmap,
>>>> .vunmap = drm_gem_dmabuf_vunmap,
>>>> diff --git a/drivers/gpu/drm/i915/i915_gem_dmabuf.c b/drivers/gpu/drm/i915/i915_gem_dmabuf.c
>>>> index 69a7aec49e84..82e2ca17a441 100644
>>>> --- a/drivers/gpu/drm/i915/i915_gem_dmabuf.c
>>>> +++ b/drivers/gpu/drm/i915/i915_gem_dmabuf.c
>>>> @@ -111,15 +111,6 @@ static void i915_gem_dmabuf_vunmap(struct dma_buf *dma_buf, void *vaddr)
>>>> i915_gem_object_unpin_map(obj);
>>>> }
>>>>
>>>> -static void *i915_gem_dmabuf_kmap_atomic(struct dma_buf *dma_buf, unsigned long page_num)
>>>> -{
>>>> - return NULL;
>>>> -}
>>>> -
>>>> -static void i915_gem_dmabuf_kunmap_atomic(struct dma_buf *dma_buf, unsigned long page_num, void *addr)
>>>> -{
>>>> -
>>>> -}
>>>> static void *i915_gem_dmabuf_kmap(struct dma_buf *dma_buf, unsigned long page_num)
>>>> {
>>>> struct drm_i915_gem_object *obj = dma_buf_to_obj(dma_buf);
>>>> @@ -225,9 +216,7 @@ static const struct dma_buf_ops i915_dmabuf_ops = {
>>>> .unmap_dma_buf = i915_gem_unmap_dma_buf,
>>>> .release = drm_gem_dmabuf_release,
>>>> .map = i915_gem_dmabuf_kmap,
>>>> - .map_atomic = i915_gem_dmabuf_kmap_atomic,
>>>> .unmap = i915_gem_dmabuf_kunmap,
>>>> - .unmap_atomic = i915_gem_dmabuf_kunmap_atomic,
>>>> .mmap = i915_gem_dmabuf_mmap,
>>>> .vmap = i915_gem_dmabuf_vmap,
>>>> .vunmap = i915_gem_dmabuf_vunmap,
>>>> diff --git a/drivers/gpu/drm/i915/selftests/mock_dmabuf.c b/drivers/gpu/drm/i915/selftests/mock_dmabuf.c
>>>> index 302f7d103635..f81fda8ea45e 100644
>>>> --- a/drivers/gpu/drm/i915/selftests/mock_dmabuf.c
>>>> +++ b/drivers/gpu/drm/i915/selftests/mock_dmabuf.c
>>>> @@ -130,9 +130,7 @@ static const struct dma_buf_ops mock_dmabuf_ops = {
>>>> .unmap_dma_buf = mock_unmap_dma_buf,
>>>> .release = mock_dmabuf_release,
>>>> .map = mock_dmabuf_kmap,
>>>> - .map_atomic = mock_dmabuf_kmap_atomic,
>>>> .unmap = mock_dmabuf_kunmap,
>>>> - .unmap_atomic = mock_dmabuf_kunmap_atomic,
>>>> .mmap = mock_dmabuf_mmap,
>>>> .vmap = mock_dmabuf_vmap,
>>>> .vunmap = mock_dmabuf_vunmap,
>>>> diff --git a/drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c b/drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c
>>>> index 8e41d649e248..1a073f9b2834 100644
>>>> --- a/drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c
>>>> +++ b/drivers/gpu/drm/omapdrm/omap_gem_dmabuf.c
>>>> @@ -148,8 +148,6 @@ static const struct dma_buf_ops omap_dmabuf_ops = {
>>>> .release = drm_gem_dmabuf_release,
>>>> .begin_cpu_access = omap_gem_dmabuf_begin_cpu_access,
>>>> .end_cpu_access = omap_gem_dmabuf_end_cpu_access,
>>>> - .map_atomic = omap_gem_dmabuf_kmap_atomic,
>>>> - .unmap_atomic = omap_gem_dmabuf_kunmap_atomic,
>>>> .map = omap_gem_dmabuf_kmap,
>>>> .unmap = omap_gem_dmabuf_kunmap,
>>>> .mmap = omap_gem_dmabuf_mmap,
>>>> diff --git a/drivers/gpu/drm/tegra/gem.c b/drivers/gpu/drm/tegra/gem.c
>>>> index 8b0b4ff64bb4..d7661702c11c 100644
>>>> --- a/drivers/gpu/drm/tegra/gem.c
>>>> +++ b/drivers/gpu/drm/tegra/gem.c
>>>> @@ -596,18 +596,6 @@ static int tegra_gem_prime_end_cpu_access(struct dma_buf *buf,
>>>> return 0;
>>>> }
>>>>
>>>> -static void *tegra_gem_prime_kmap_atomic(struct dma_buf *buf,
>>>> - unsigned long page)
>>>> -{
>>>> - return NULL;
>>>> -}
>>>> -
>>>> -static void tegra_gem_prime_kunmap_atomic(struct dma_buf *buf,
>>>> - unsigned long page,
>>>> - void *addr)
>>>> -{
>>>> -}
>>>> -
>>>> static void *tegra_gem_prime_kmap(struct dma_buf *buf, unsigned long page)
>>>> {
>>>> return NULL;
>>>> @@ -648,8 +636,6 @@ static const struct dma_buf_ops tegra_gem_prime_dmabuf_ops = {
>>>> .release = tegra_gem_prime_release,
>>>> .begin_cpu_access = tegra_gem_prime_begin_cpu_access,
>>>> .end_cpu_access = tegra_gem_prime_end_cpu_access,
>>>> - .map_atomic = tegra_gem_prime_kmap_atomic,
>>>> - .unmap_atomic = tegra_gem_prime_kunmap_atomic,
>>>> .map = tegra_gem_prime_kmap,
>>>> .unmap = tegra_gem_prime_kunmap,
>>>> .mmap = tegra_gem_prime_mmap,
>>>> diff --git a/drivers/gpu/drm/udl/udl_dmabuf.c b/drivers/gpu/drm/udl/udl_dmabuf.c
>>>> index 5fdc8bdc2026..ae7225dedc30 100644
>>>> --- a/drivers/gpu/drm/udl/udl_dmabuf.c
>>>> +++ b/drivers/gpu/drm/udl/udl_dmabuf.c
>>>> @@ -156,27 +156,12 @@ static void *udl_dmabuf_kmap(struct dma_buf *dma_buf, unsigned long page_num)
>>>> return NULL;
>>>> }
>>>>
>>>> -static void *udl_dmabuf_kmap_atomic(struct dma_buf *dma_buf,
>>>> - unsigned long page_num)
>>>> -{
>>>> - /* TODO */
>>>> -
>>>> - return NULL;
>>>> -}
>>>> -
>>>> static void udl_dmabuf_kunmap(struct dma_buf *dma_buf,
>>>> unsigned long page_num, void *addr)
>>>> {
>>>> /* TODO */
>>>> }
>>>>
>>>> -static void udl_dmabuf_kunmap_atomic(struct dma_buf *dma_buf,
>>>> - unsigned long page_num,
>>>> - void *addr)
>>>> -{
>>>> - /* TODO */
>>>> -}
>>>> -
>>>> static int udl_dmabuf_mmap(struct dma_buf *dma_buf,
>>>> struct vm_area_struct *vma)
>>>> {
>>>> @@ -191,9 +176,7 @@ static const struct dma_buf_ops udl_dmabuf_ops = {
>>>> .map_dma_buf = udl_map_dma_buf,
>>>> .unmap_dma_buf = udl_unmap_dma_buf,
>>>> .map = udl_dmabuf_kmap,
>>>> - .map_atomic = udl_dmabuf_kmap_atomic,
>>>> .unmap = udl_dmabuf_kunmap,
>>>> - .unmap_atomic = udl_dmabuf_kunmap_atomic,
>>>> .mmap = udl_dmabuf_mmap,
>>>> .release = drm_gem_dmabuf_release,
>>>> };
>>>> diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_prime.c b/drivers/gpu/drm/vmwgfx/vmwgfx_prime.c
>>>> index fbffb37ccf42..373bc6da2f84 100644
>>>> --- a/drivers/gpu/drm/vmwgfx/vmwgfx_prime.c
>>>> +++ b/drivers/gpu/drm/vmwgfx/vmwgfx_prime.c
>>>> @@ -71,17 +71,6 @@ static void vmw_prime_dmabuf_vunmap(struct dma_buf *dma_buf, void *vaddr)
>>>> {
>>>> }
>>>>
>>>> -static void *vmw_prime_dmabuf_kmap_atomic(struct dma_buf *dma_buf,
>>>> - unsigned long page_num)
>>>> -{
>>>> - return NULL;
>>>> -}
>>>> -
>>>> -static void vmw_prime_dmabuf_kunmap_atomic(struct dma_buf *dma_buf,
>>>> - unsigned long page_num, void *addr)
>>>> -{
>>>> -
>>>> -}
>>>> static void *vmw_prime_dmabuf_kmap(struct dma_buf *dma_buf,
>>>> unsigned long page_num)
>>>> {
>>>> @@ -108,9 +97,7 @@ const struct dma_buf_ops vmw_prime_dmabuf_ops = {
>>>> .unmap_dma_buf = vmw_prime_unmap_dma_buf,
>>>> .release = NULL,
>>>> .map = vmw_prime_dmabuf_kmap,
>>>> - .map_atomic = vmw_prime_dmabuf_kmap_atomic,
>>>> .unmap = vmw_prime_dmabuf_kunmap,
>>>> - .unmap_atomic = vmw_prime_dmabuf_kunmap_atomic,
>>>> .mmap = vmw_prime_dmabuf_mmap,
>>>> .vmap = vmw_prime_dmabuf_vmap,
>>>> .vunmap = vmw_prime_dmabuf_vunmap,
>>>> diff --git a/drivers/media/common/videobuf2/videobuf2-dma-contig.c b/drivers/media/common/videobuf2/videobuf2-dma-contig.c
>>>> index 12d0072c52c2..aff0ab7bf83d 100644
>>>> --- a/drivers/media/common/videobuf2/videobuf2-dma-contig.c
>>>> +++ b/drivers/media/common/videobuf2/videobuf2-dma-contig.c
>>>> @@ -358,7 +358,6 @@ static const struct dma_buf_ops vb2_dc_dmabuf_ops = {
>>>> .map_dma_buf = vb2_dc_dmabuf_ops_map,
>>>> .unmap_dma_buf = vb2_dc_dmabuf_ops_unmap,
>>>> .map = vb2_dc_dmabuf_ops_kmap,
>>>> - .map_atomic = vb2_dc_dmabuf_ops_kmap,
>>>> .vmap = vb2_dc_dmabuf_ops_vmap,
>>>> .mmap = vb2_dc_dmabuf_ops_mmap,
>>>> .release = vb2_dc_dmabuf_ops_release,
>>>> diff --git a/drivers/media/common/videobuf2/videobuf2-dma-sg.c b/drivers/media/common/videobuf2/videobuf2-dma-sg.c
>>>> index cf94765e593f..015e737095cd 100644
>>>> --- a/drivers/media/common/videobuf2/videobuf2-dma-sg.c
>>>> +++ b/drivers/media/common/videobuf2/videobuf2-dma-sg.c
>>>> @@ -507,7 +507,6 @@ static const struct dma_buf_ops vb2_dma_sg_dmabuf_ops = {
>>>> .map_dma_buf = vb2_dma_sg_dmabuf_ops_map,
>>>> .unmap_dma_buf = vb2_dma_sg_dmabuf_ops_unmap,
>>>> .map = vb2_dma_sg_dmabuf_ops_kmap,
>>>> - .map_atomic = vb2_dma_sg_dmabuf_ops_kmap,
>>>> .vmap = vb2_dma_sg_dmabuf_ops_vmap,
>>>> .mmap = vb2_dma_sg_dmabuf_ops_mmap,
>>>> .release = vb2_dma_sg_dmabuf_ops_release,
>>>> diff --git a/drivers/media/common/videobuf2/videobuf2-vmalloc.c b/drivers/media/common/videobuf2/videobuf2-vmalloc.c
>>>> index 298ffb9ecdae..467a4005164b 100644
>>>> --- a/drivers/media/common/videobuf2/videobuf2-vmalloc.c
>>>> +++ b/drivers/media/common/videobuf2/videobuf2-vmalloc.c
>>>> @@ -346,7 +346,6 @@ static const struct dma_buf_ops vb2_vmalloc_dmabuf_ops = {
>>>> .map_dma_buf = vb2_vmalloc_dmabuf_ops_map,
>>>> .unmap_dma_buf = vb2_vmalloc_dmabuf_ops_unmap,
>>>> .map = vb2_vmalloc_dmabuf_ops_kmap,
>>>> - .map_atomic = vb2_vmalloc_dmabuf_ops_kmap,
>>>> .vmap = vb2_vmalloc_dmabuf_ops_vmap,
>>>> .mmap = vb2_vmalloc_dmabuf_ops_mmap,
>>>> .release = vb2_vmalloc_dmabuf_ops_release,
>>>> diff --git a/drivers/staging/android/ion/ion.c b/drivers/staging/android/ion/ion.c
>>>> index 57e0d8035b2e..a46219ff5e16 100644
>>>> --- a/drivers/staging/android/ion/ion.c
>>>> +++ b/drivers/staging/android/ion/ion.c
>>>> @@ -374,8 +374,6 @@ static const struct dma_buf_ops dma_buf_ops = {
>>>> .detach = ion_dma_buf_detatch,
>>>> .begin_cpu_access = ion_dma_buf_begin_cpu_access,
>>>> .end_cpu_access = ion_dma_buf_end_cpu_access,
>>>> - .map_atomic = ion_dma_buf_kmap,
>>>> - .unmap_atomic = ion_dma_buf_kunmap,
>>>> .map = ion_dma_buf_kmap,
>>>> .unmap = ion_dma_buf_kunmap,
>>>> };
>>>> diff --git a/drivers/tee/tee_shm.c b/drivers/tee/tee_shm.c
>>>> index 556960a1bab3..df4a1553b78b 100644
>>>> --- a/drivers/tee/tee_shm.c
>>>> +++ b/drivers/tee/tee_shm.c
>>>> @@ -80,11 +80,6 @@ static void tee_shm_op_release(struct dma_buf *dmabuf)
>>>> tee_shm_release(shm);
>>>> }
>>>>
>>>> -static void *tee_shm_op_map_atomic(struct dma_buf *dmabuf, unsigned long pgnum)
>>>> -{
>>>> - return NULL;
>>>> -}
>>>> -
>>>> static void *tee_shm_op_map(struct dma_buf *dmabuf, unsigned long pgnum)
>>>> {
>>>> return NULL;
>>>> @@ -107,7 +102,6 @@ static const struct dma_buf_ops tee_shm_dma_buf_ops = {
>>>> .map_dma_buf = tee_shm_op_map_dma_buf,
>>>> .unmap_dma_buf = tee_shm_op_unmap_dma_buf,
>>>> .release = tee_shm_op_release,
>>>> - .map_atomic = tee_shm_op_map_atomic,
>>>> .map = tee_shm_op_map,
>>>> .mmap = tee_shm_op_mmap,
>>>> };
>>>> diff --git a/include/drm/drm_prime.h b/include/drm/drm_prime.h
>>>> index ef338151cea8..d716d653b096 100644
>>>> --- a/include/drm/drm_prime.h
>>>> +++ b/include/drm/drm_prime.h
>>>> @@ -93,10 +93,6 @@ void drm_gem_unmap_dma_buf(struct dma_buf_attachment *attach,
>>>> enum dma_data_direction dir);
>>>> void *drm_gem_dmabuf_vmap(struct dma_buf *dma_buf);
>>>> void drm_gem_dmabuf_vunmap(struct dma_buf *dma_buf, void *vaddr);
>>>> -void *drm_gem_dmabuf_kmap_atomic(struct dma_buf *dma_buf,
>>>> - unsigned long page_num);
>>>> -void drm_gem_dmabuf_kunmap_atomic(struct dma_buf *dma_buf,
>>>> - unsigned long page_num, void *addr);
>>>> void *drm_gem_dmabuf_kmap(struct dma_buf *dma_buf, unsigned long page_num);
>>>> void drm_gem_dmabuf_kunmap(struct dma_buf *dma_buf, unsigned long page_num,
>>>> void *addr);
>>>> diff --git a/include/linux/dma-buf.h b/include/linux/dma-buf.h
>>>> index 346caf77937f..d17cadd76802 100644
>>>> --- a/include/linux/dma-buf.h
>>>> +++ b/include/linux/dma-buf.h
>>>> @@ -205,8 +205,6 @@ struct dma_buf_ops {
>>>> * to be restarted.
>>>> */
>>>> int (*end_cpu_access)(struct dma_buf *, enum dma_data_direction);
>>>> - void *(*map_atomic)(struct dma_buf *, unsigned long);
>>>> - void (*unmap_atomic)(struct dma_buf *, unsigned long, void *);
>>>> void *(*map)(struct dma_buf *, unsigned long);
>>>> void (*unmap)(struct dma_buf *, unsigned long, void *);
>>>>
>>>> @@ -394,8 +392,6 @@ int dma_buf_begin_cpu_access(struct dma_buf *dma_buf,
>>>> enum dma_data_direction dir);
>>>> int dma_buf_end_cpu_access(struct dma_buf *dma_buf,
>>>> enum dma_data_direction dir);
>>>> -void *dma_buf_kmap_atomic(struct dma_buf *, unsigned long);
>>>> -void dma_buf_kunmap_atomic(struct dma_buf *, unsigned long, void *);
>>>> void *dma_buf_kmap(struct dma_buf *, unsigned long);
>>>> void dma_buf_kunmap(struct dma_buf *, unsigned long, void *);
>>>>
>>>> --
>>>> 2.14.1
>>>>
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>>>> dri-devel at lists.freedesktop.org
>>>> https://lists.freedesktop.org/mailman/listinfo/dri-devel
>> _______________________________________________
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