Looks good:
Reviewed-by: Christoph Hellwig
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On Thu, Nov 05, 2020 at 04:51:43PM -0800, Ralph Campbell wrote:
> Move the definition of migrate_vma_collect_skip() to make it callable
> by migrate_vma_collect_hole(). This helps make the next patch easier
> to read.
>
> Signed-off-by: Ralph Campbell
Looks good,
Reviewed-by: Christoph Hellwig
Make use of the devm_drm_dev_alloc() API to bind the lifetime of
nouveau_drm structure to the drm_device. This is important because a
reference to nouveau_drm is accessible from drm_device, which is
provided to a number of DRM layer callbacks that can run after the
deallocation of nouveau_drm
Start on documentation for the Nouveau device structure and the NVIF
client structure it uses. This documentation is not complete as the
structures are non-trivial and I am not familiar with large portions of
them.
Signed-off-by: Jeremy Cline
---
drivers/gpu/drm/nouveau/nouveau_drv.h | 67
In order to use the resource-managed allocation of a struct drm_device
instance, it is recommended to embed the drm_device instance within the
driver-specific structure.
As there is already a helper to convert a drm_device to a nouveau_drm
struct, this adds an inverse function and changes all
Hi folks,
Currently, when the device is removed (or the driver is unbound) the
nouveau_drm structure de-allocated. However, it's still accessible from
and used by some DRM layer callbacks. For example, file handles can be
closed after the device has been removed (physically or otherwise). This
Add a helper function to allow device drivers to create device private
transparent huge pages. This is intended to help support device private
THP migrations.
Signed-off-by: Ralph Campbell
---
include/linux/huge_mm.h | 5 +
mm/huge_memory.c| 9 +
2 files changed, 14
Add support for migrating transparent huge pages to and from device
private memory.
Signed-off-by: Ralph Campbell
---
drivers/gpu/drm/nouveau/nouveau_dmem.c | 289 ++---
drivers/gpu/drm/nouveau/nouveau_svm.c | 11 +-
drivers/gpu/drm/nouveau/nouveau_svm.h | 3 +-
3 files
Transparent huge page allocation policy is controlled by several sysfs
variables. Rather than expose these to each device driver that needs to
allocate THPs, provide a helper function.
Signed-off-by: Ralph Campbell
---
include/linux/gfp.h | 10 ++
mm/huge_memory.c| 14 ++
Add some basic stand alone self tests for migrating system memory to device
private memory and back.
Signed-off-by: Ralph Campbell
---
lib/test_hmm.c | 437 +
lib/test_hmm_uapi.h| 3 +
tools/testing/selftests/vm/hmm-tests.c |
This series adds support for transparent huge page migration to
migrate_vma_*() and adds nouveau SVM and HMM selftests as consumers.
Earlier versions were posted previously [1] and [2].
The patches apply cleanly to the linux-mm 5.10.0-rc2 tree. There are a
lot of other THP patches being posted. I
Support transparent huge page migration to ZONE_DEVICE private memory.
A new selection flag (MIGRATE_VMA_SELECT_COMPOUND) is added to request
THP migration. Otherwise, THPs are split when filling in the source PFN
array. A new flag (MIGRATE_PFN_COMPOUND) is added to the source PFN array
to
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