On Wed, 09 Sep 2020, Joe Perches wrote:
> diff --git a/drivers/gpu/drm/i915/display/intel_sprite.c
> b/drivers/gpu/drm/i915/display/intel_sprite.c
> index 5ac0dbf0e03d..35ac539cc2b1 100644
> --- a/drivers/gpu/drm/i915/display/intel_sprite.c
> +++ b/drivers/gpu/drm/i915/display/intel_sprite.c
>
Implement the alloc_noncoherent method to provide memory that is neither
coherent not contiguous.
Signed-off-by: Christoph Hellwig
---
drivers/iommu/dma-iommu.c | 41 +++
1 file changed, 37 insertions(+), 4 deletions(-)
diff --git a/drivers/iommu/dma-iommu.c
Use the new non-coherent DMA API including proper ownership transfers.
This includes adding additional calls to dma_sync_desc_dev as the
old syncing was rather ad-hoc.
Thanks to Thomas Bogendoerfer for debugging the ownership transfer
issues.
Signed-off-by: Christoph Hellwig
---
GEM object functions deprecate several similar callback interfaces in
struct drm_driver. This patch replaces the per-driver callbacks with
per-instance callbacks in omapdrm.
v2:
* make omap_gem_free_object() static (Tomi)
Signed-off-by: Thomas Zimmermann
Reviewed-by: Laurent Pinchart
On Mon, Sep 14, 2020 at 08:20:18AM -0700, James Bottomley wrote:
> If you're going to change the macros from taking a device to taking a
> hostdata structure then the descriptive argument name needs to change
> ... it can't be dev anymore. I'm happy with it simply becoming 'h' if
> hostdata is
Hi all,
this series replaced the DMA_ATTR_NON_CONSISTENT flag to dma_alloc_attrs
with a separate new dma_alloc_pages API, which is available on all
platforms. In addition to cleaning up the convoluted code path, this
ensures that other drivers that have asked for better support for
non-coherent
Added my rb to the amdgpu and radeon patches.
Should we pick those up through the amd branches or do you want to push
everything to drm-misc-next?
I think the later since this should result in much merge clash.
Christian.
Am 15.09.20 um 16:59 schrieb Thomas Zimmermann:
The GEM and PRIME
GEM object functions deprecate several similar callback interfaces in
struct drm_driver. This patch replaces the per-driver callbacks with
per-instance callbacks in vkms.
Signed-off-by: Thomas Zimmermann
---
drivers/gpu/drm/vkms/vkms_drv.c | 8
drivers/gpu/drm/vkms/vkms_gem.c | 13
Hi Joe,
For MTD:
> drivers/mtd/nand/raw/nandsim.c| 2 +-
Reviewed-by: Miquel Raynal
Thanks,
Miquèl
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This will allow IOMMU drivers to allocate non-contigous memory and
return a vmapped virtual address.
Signed-off-by: Christoph Hellwig
---
include/linux/dma-mapping.h | 5 +
kernel/dma/mapping.c| 33 +++--
2 files changed, 32 insertions(+), 6 deletions(-)
DMA_ATTR_NON_CONSISTENT is a no-op except on PA-RISC and a few MIPS
configs, so don't set it in this ARM specific driver.
Signed-off-by: Christoph Hellwig
---
drivers/gpu/drm/exynos/exynos_drm_gem.c | 2 --
1 file changed, 2 deletions(-)
diff --git a/drivers/gpu/drm/exynos/exynos_drm_gem.c
Use the new non-coherent DMA API including proper ownership transfers.
This also means we can allocate the buffer memory with the proper
direction instead of bidirectional.
Signed-off-by: Christoph Hellwig
---
sound/mips/hal2.c | 58 ++-
1 file
Hi Tomas,
Thanks for the patch.
On Tue, Sep 15, 2020 at 08:53:46AM -0700, Laurent Pinchart wrote:
> Hi Thomas,
>
> Thank you for the patch.
>
> On Tue, Sep 15, 2020 at 04:59:57PM +0200, Thomas Zimmermann wrote:
> > The xlnx driver uses CMA helpers with default callback functions.
> >
Several GEM and PRIME callbacks have been deprecated in favor of
per-instance GEM object functions. Remove the callbacks as they are
now unused. The only exception is .gem_prime_mmap, which is still
in use by several drivers.
What is also gone is gem_vm_ops in struct drm_driver. All drivers now
GEM object functions deprecate several similar callback interfaces in
struct drm_driver. This patch replaces the per-driver callbacks with
per-instance callbacks in rockchip. The only exception is gem_prime_mmap,
which is non-trivial to convert.
Signed-off-by: Thomas Zimmermann
---
On Mon, Sep 14, 2020 at 06:34:02PM +0300, Sergei Shtylyov wrote:
> On 9/14/20 5:44 PM, Christoph Hellwig wrote:
>
> > DMA_ATTR_NON_CONSISTENT is a no-op except on PARISC and some mips
> > configs, so don't set it in this ARM specific driver.
>
>Hm, PARICS and ARM capitalized but mips in
GEM object functions deprecate several similar callback interfaces in
struct drm_driver. This patch replaces the per-driver callbacks with
per-instance callbacks in armada.
Signed-off-by: Thomas Zimmermann
---
drivers/gpu/drm/armada/armada_drv.c | 3 ---
drivers/gpu/drm/armada/armada_gem.c |
The au1000-eth driver contains none of the manual cache synchronization
required for using DMA_ATTR_NON_CONSISTENT. From what I can tell it
can be used on both dma coherent and non-coherent DMA platforms, but
I suspect it has been buggy on the non-coherent platforms all along.
Signed-off-by:
On 15/09/2020 15:59, Thomas Zimmermann wrote:
GEM object functions deprecate several similar callback interfaces in
struct drm_driver. This patch replaces the per-driver callbacks with
per-instance callbacks in i915.
v2:
* move object-function instance to i915_gem_object.c (Jani)
GEM object functions deprecate several similar callback interfaces in
struct drm_driver. This patch replaces the per-driver callbacks with
per-instance callbacks in radeon.
v2:
* move object-function instance to radeon_gem.c (Christian)
* set callbacks in
From: Sergey Senozhatsky
The patch partially reverts some of the UAPI bits of the buffer
cache management hints. Namely, the queue consistency (memory
coherency) user-space hint because, as it turned out, the kernel
implementation of this feature was misusing DMA_ATTR_NON_CONSISTENT.
The patch
DMA_ATTR_NON_CONSISTENT is a no-op except on PA-RISC and a few MIPS
configs, so don't set it in this ARM specific driver part.
Signed-off-by: Christoph Hellwig
---
drivers/gpu/drm/nouveau/nvkm/subdev/instmem/gk20a.c | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
diff --git
All users are gone now, remove the API.
Signed-off-by: Christoph Hellwig
---
arch/mips/Kconfig | 1 -
arch/mips/jazz/jazzdma.c| 1 -
arch/mips/mm/dma-noncoherent.c | 6 --
arch/parisc/Kconfig | 1 -
arch/parisc/kernel/pci-dma.c| 6 --
Switch the 53c700 driver to only use non-coherent descriptor memory if it
really has to because dma_alloc_coherent fails. This doesn't matter for
any of the platforms it runs on currently, but that will change soon.
To help with this two new helpers to transfer ownership to and from the
device
Hi Thomas,
Thank you for the patch.
On Tue, Sep 15, 2020 at 04:59:57PM +0200, Thomas Zimmermann wrote:
> The xlnx driver uses CMA helpers with default callback functions.
> Initialize the driver structure with the rsp CMA helper macro. The
> driver is being converted to use GEM object functions
GEM object functions deprecate several similar callback interfaces in
struct drm_driver. This patch replaces virtgpu's per-driver PRIME export
function with a per-object function.
Signed-off-by: Thomas Zimmermann
---
drivers/gpu/drm/virtio/virtgpu_drv.c| 1 -
Use dma_alloc_pages to allocate DMAable pages instead of hoping that
the architecture either has GFP_DMA32 or not more than 4G of memory.
Signed-off-by: Christoph Hellwig
---
drivers/firewire/ohci.c | 26 +++---
1 file changed, 11 insertions(+), 15 deletions(-)
diff --git
The xlnx driver uses CMA helpers with default callback functions.
Initialize the driver structure with the rsp CMA helper macro. The
driver is being converted to use GEM object functions as part of
this change.
Two callbacks, .dumb_destroy and .gem_prime_import, were initialized
to their default
On Tue, Sep 15, 2020 at 04:59:39PM +0200, Thomas Zimmermann wrote:
> GEM object functions deprecate several similar callback interfaces in
> struct drm_driver. This patch replaces the per-driver callbacks with
> per-instance callbacks in armada.
>
> Signed-off-by: Thomas Zimmermann
Acked-by:
To prevent a compiler error when a method call alloc_pages is
added (which I plan to for the dma_map_ops).
Signed-off-by: Christoph Hellwig
---
include/linux/gfp.h | 6 --
1 file changed, 4 insertions(+), 2 deletions(-)
diff --git a/include/linux/gfp.h b/include/linux/gfp.h
index
On Mon, Sep 14, 2020 at 04:53:25PM -0700, Ralph Campbell wrote:
> Since set_page_refcounted() is defined in mm_interal.h I would have to
> move the definition to someplace like page_ref.h or have the drivers
> cal init_page_count() or set_page_count() since get_page() calls
> VM_BUG_ON_PAGE() if
GEM object functions deprecate several similar callback interfaces in
struct drm_driver. This patch replaces the per-driver callbacks with
per-instance callbacks in gma500.
Signed-off-by: Thomas Zimmermann
---
drivers/gpu/drm/gma500/framebuffer.c | 2 ++
drivers/gpu/drm/gma500/gem.c |
GEM object functions deprecate several similar callback interfaces in
struct drm_driver. This patch replaces the per-driver callbacks with
per-instance callbacks in vgem. The only exception is gem_prime_mmap,
which is non-trivial to convert.
Signed-off-by: Thomas Zimmermann
---
GEM object functions deprecate several similar callback interfaces in
struct drm_driver. This patch replaces the per-driver callbacks with
per-instance callbacks in pl111. The only exception is gem_prime_mmap,
which is non-trivial to convert.
v2:
* use
On Mon, Sep 14, 2020 at 04:26:17PM +0100, Matthew Wilcox wrote:
> On Mon, Sep 14, 2020 at 04:44:16PM +0200, Christoph Hellwig wrote:
> > I'm still a little unsure about the API naming, as alloc_pages sort of
> > implies a struct page return value, but we return a kernel virtual
> > address.
>
>
This API is the equivalent of alloc_pages, except that the returned memory
is guaranteed to be DMA addressable by the passed in device. The
implementation will also be used to provide a more sensible replacement
for DMA_ATTR_NON_CONSISTENT flag.
Additionally dma_alloc_noncoherent is switched
This allows us to get rid of the LIB82596_DMA_ATTR defined and prepare
for untangling the coherent vs non-coherent DMA allocation API.
Signed-off-by: Christoph Hellwig
---
drivers/net/ethernet/i825xx/lasi_82596.c | 24 ++--
drivers/net/ethernet/i825xx/lib82596.c | 36
Hi
Am 13.08.20 um 13:19 schrieb Oleksandr Andrushchenko:
> Hi,
>
> On 8/13/20 11:36 AM, Thomas Zimmermann wrote:
>> GEM object functions deprecate several similar callback interfaces in
>> struct drm_driver. This patch replaces the per-driver callbacks with
>> per-instance callbacks in xen. The
GEM object functions deprecate several similar callback interfaces in
struct drm_driver. This patch replaces the per-driver callbacks with
per-instance callbacks in nouveau.
Signed-off-by: Thomas Zimmermann
---
drivers/gpu/drm/nouveau/nouveau_drm.c | 9 -
Am 15.09.20 um 16:59 schrieb Thomas Zimmermann:
GEM object functions deprecate several similar callback interfaces in
struct drm_driver. This patch replaces the per-driver callbacks with
per-instance callbacks in amdgpu. The only exception is gem_prime_mmap,
which is non-trivial to convert.
v2:
GEM object functions deprecate several similar callback interfaces in
struct drm_driver. This patch replaces the per-driver callbacks with
per-instance callbacks in xen. The only exception is gem_prime_mmap,
which is non-trivial to convert.
v2:
* convert xen_drm_drv_free_object_unlocked()
Use the new non-coherent DMA API including proper ownership transfers.
This includes moving the DMA helpers to lib82596 based of an ifdef to
avoid include order problems.
Signed-off-by: Christoph Hellwig
---
drivers/net/ethernet/i825xx/lasi_82596.c | 25 ++---
On 9/15/20 9:29 AM, Christoph Hellwig wrote:
On Mon, Sep 14, 2020 at 04:53:25PM -0700, Ralph Campbell wrote:
Since set_page_refcounted() is defined in mm_interal.h I would have to
move the definition to someplace like page_ref.h or have the drivers
cal init_page_count() or set_page_count()
GEM object functions deprecate several similar callback interfaces in
struct drm_driver. This patch replaces the per-driver callbacks with
per-instance callbacks in amdgpu. The only exception is gem_prime_mmap,
which is non-trivial to convert.
v2:
* move object-function instance to
Use the new non-coherent DMA API including proper ownership transfers.
Signed-off-by: Christoph Hellwig
---
drivers/scsi/53c700.c | 20 ++--
1 file changed, 14 insertions(+), 6 deletions(-)
diff --git a/drivers/scsi/53c700.c b/drivers/scsi/53c700.c
index
GEM object functions deprecate several similar callback interfaces in
struct drm_driver. This patch replaces the per-driver callbacks with
per-instance callbacks in msm. The only exception is gem_prime_mmap,
which is non-trivial to convert.
Signed-off-by: Thomas Zimmermann
---
Add a new API to allocate and free memory that is guaranteed to be
addressable by a device, but which potentially is not cache coherent
for DMA.
To transfer ownership to and from the device, the existing streaming
DMA API calls dma_sync_single_for_device and dma_sync_single_for_cpu
must be used.
Am 15.09.20 um 16:59 schrieb Thomas Zimmermann:
GEM object functions deprecate several similar callback interfaces in
struct drm_driver. This patch replaces the per-driver callbacks with
per-instance callbacks in radeon.
v2:
* move object-function instance to radeon_gem.c (Christian)
The GEM and PRIME related callbacks in struct drm_driver are deprecated in
favor of GEM object functions in struct drm_gem_object_funcs. This patchset
converts the remaining drivers to object functions and removes most of the
obsolete interfaces.
Patches #1 to #16 and #18 to #19 convert DRM
GEM object functions deprecate several similar callback interfaces in
struct drm_driver. This patch replaces the per-driver callbacks with
per-instance callbacks in exynos. The only exception is gem_prime_mmap,
which is non-trivial to convert.
Signed-off-by: Thomas Zimmermann
---
GEM object functions deprecate several similar callback interfaces in
struct drm_driver. This patch replaces the per-driver callbacks with
per-instance callbacks in etnaviv. The only exception is gem_prime_mmap,
which is non-trivial to convert.
Signed-off-by: Thomas Zimmermann
---
GEM object functions deprecate several similar callback interfaces in
struct drm_driver. This patch replaces the per-driver callbacks with
per-instance callbacks in vc4. The only exception is gem_prime_mmap,
which is non-trivial to convert.
Signed-off-by: Thomas Zimmermann
Reviewed-by: Eric
On Mon, Sep 14, 2020 at 04:13:58PM +0100, Matthew Wilcox wrote:
> On Mon, Sep 14, 2020 at 04:44:27PM +0200, Christoph Hellwig wrote:
> > drivers/net/ethernet/i825xx/lasi_82596.c | 25 ++---
> > drivers/net/ethernet/i825xx/lib82596.c | 114 ++-
> >
GEM object functions deprecate several similar callback interfaces in
struct drm_driver. This patch replaces the per-driver callbacks with
per-instance callbacks in mediatek. The only exception is gem_prime_mmap,
which is non-trivial to convert.
Signed-off-by: Thomas Zimmermann
---
Use the new non-coherent DMA API including proper ownership transfers.
This also means we can allocate the memory as DMA_TO_DEVICE instead
of bidirectional.
Signed-off-by: Christoph Hellwig
---
drivers/scsi/sgiwd93.c | 14 +++---
1 file changed, 7 insertions(+), 7 deletions(-)
diff
On Tue, Sep 15, 2020 at 09:39:47AM -0700, Ralph Campbell wrote:
>> I don't think any of the three ->page_free instances even cares about
>> the page refcount.
>>
> Not true. The page_free() callback records the page is free by setting
> a bit or putting the page on a free list but when it
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