On Wed, Apr 24, 2019 at 10:01:56PM -0300, Thiago Jung Bauermann wrote:
>
> Michael S. Tsirkin writes:
>
> > On Wed, Apr 17, 2019 at 06:42:00PM -0300, Thiago Jung Bauermann wrote:
> >>
> >> Michael S. Tsirkin writes:
> >>
> >> > On Thu, Mar 21, 2019 at 09:05:04PM -0300, Thiago Jung Bauermann
Michael S. Tsirkin writes:
> On Wed, Apr 17, 2019 at 06:42:00PM -0300, Thiago Jung Bauermann wrote:
>>
>> Michael S. Tsirkin writes:
>>
>> > On Thu, Mar 21, 2019 at 09:05:04PM -0300, Thiago Jung Bauermann wrote:
>> >>
>> >> Michael S. Tsirkin writes:
>> >>
>> >> > On Wed, Mar 20, 2019 at
Am 24.04.19 um 14:05 schrieb Thomas Zimmermann:
> Hi Christian,
>
> Am 24.04.19 um 13:48 schrieb Thomas Zimmermann:
>> +
>> +/*
>> + * Helpers for struct ttm_bo_driver
>> + */
>> +
>> +static bool drm_is_gem_vram(struct ttm_buffer_object *bo)
>> +{
>> +return (bo->destroy ==
On Tue, Apr 23, 2019 at 04:45:28PM -0700, Nadav Amit wrote:
> Introduce interfaces for ballooning enqueueing and dequeueing of a list
> of pages. These interfaces reduce the overhead of storing and restoring
> IRQs by batching the operations. In addition they do not panic if the
> list of pages is
On Wed, Apr 24, 2019 at 01:48:25PM +0200, Thomas Zimmermann wrote:
> Several simple framebuffer drivers copy most of the TTM code from each
> other. The implementation is always the same; except for the name of
> some data structures.
>
> As recently discussed, this patch set provides generic
On Wed, Apr 24, 2019 at 01:48:30PM +0200, Thomas Zimmermann wrote:
> The VRAM MM memory manager is a helper library that manages dedicated video
> memory of simple framebuffer devices. It is supported to be used with
> struct drm_gem_vram_object, but does not depend on it.
I'm not sure keeping
On Wed, Apr 24, 2019 at 01:48:32PM +0200, Thomas Zimmermann wrote:
> The data structure |struct drm_vram_mm| and its helpers replace ast's
> TTM-based memory manager. It's the same implementation; except for the
> type names.
>
> v2:
> * implement ast_mmap() with drm_vram_mm_mmap()
>
>
Hi Christian,
Am 24.04.19 um 13:48 schrieb Thomas Zimmermann:
> +
> +/*
> + * Helpers for struct ttm_bo_driver
> + */
> +
> +static bool drm_is_gem_vram(struct ttm_buffer_object *bo)
> +{
> + return (bo->destroy == ttm_buffer_object_destroy);
> +}
> +
> +/**
> + *
This patch replaces |struct vbox_bo| and its helpers with the generic
implementation of |struct drm_gem_vram_object|. The only change in
semantics is that _bo_driver.verify_access() now does the actual
verification.
Signed-off-by: Thomas Zimmermann
Reviewed-by: Hans de Goede
---
The data structure |struct drm_gem_vram_object| and its helpers replace
|struct hibmc_bo|. It's the same implementation; except for the type
names.
Signed-off-by: Thomas Zimmermann
---
drivers/gpu/drm/hisilicon/hibmc/Kconfig | 1 +
.../gpu/drm/hisilicon/hibmc/hibmc_drm_de.c| 21 +-
The data structure |struct drm_gem_vram_object| and its helpers replace
|struct mgag200_bo|. It's the same implementation; except for the type
names.
Signed-off-by: Thomas Zimmermann
---
drivers/gpu/drm/mgag200/Kconfig | 1 +
drivers/gpu/drm/mgag200/mgag200_cursor.c | 63 +
The data structure |struct drm_vram_mm| and its helpers replace hibmc's
TTM-based memory manager. It's the same implementation; except for the
type names.
v2:
* implement hibmc_mmap() with drm_vram_mm_mmap()
Signed-off-by: Thomas Zimmermann
---
drivers/gpu/drm/hisilicon/hibmc/Kconfig
The mgag200 driver establishes several memory mappings for frame buffers
and cursors. This patch converts the driver to use the equivalent
drm_gem_vram_kmap() functions. It removes the dependencies on TTM
and cleans up the code.
---
drivers/gpu/drm/mgag200/mgag200_cursor.c | 35
The data structure |struct drm_vram_mm| and its helpers replace mgag200's
TTM-based memory manager. It's the same implementation; except for the type
names.
v2:
* implement mgag200_mmap() with drm_vram_mm_mmap()
Signed-off-by: Thomas Zimmermann
---
drivers/gpu/drm/mgag200/Kconfig
The data structure |struct drm_vram_mm| and its helpers replace bochs'
TTM-based memory manager. It's the same implementation; except for the
type names.
v2:
* implement bochs_mmap() with drm_vram_mm_mmap()
Signed-off-by: Thomas Zimmermann
---
drivers/gpu/drm/bochs/Kconfig| 1 +
The data structure |struct drm_vram_mm| and its helpers replace vboxvideo's
TTM-based memory manager. It's the same implementation; except for the type
names.
v2:
* implement vbox_mmap() with drm_vram_mm_mmap()
Signed-off-by: Thomas Zimmermann
Reviewed-by: Hans de Goede
---
The AST driver establishes several memory mappings for frame buffers
and cursors. This patch converts the driver to use the equivalent
drm_gem_vram_kmap() functions. It removes the dependencies on TTM
and cleans up the code.
Signed-off-by: Thomas Zimmermann
---
drivers/gpu/drm/ast/ast_drv.h |
The data structure |struct drm_gem_vram_object| and its helpers replace
|struct bochs_bo|. It's the same implementation; except for the type
names.
Signed-off-by: Thomas Zimmermann
---
drivers/gpu/drm/bochs/Kconfig | 1 +
drivers/gpu/drm/bochs/bochs.h | 34 +---
The data structure |struct drm_gem_vram_object| and its helpers replace
|struct ast_bo|. It's the same implementation; except for the type names.
Signed-off-by: Thomas Zimmermann
---
drivers/gpu/drm/ast/Kconfig| 2 +-
drivers/gpu/drm/ast/ast_drv.c | 4 +-
drivers/gpu/drm/ast/ast_drv.h
The provided helpers can be used for the respective callback functions
in |struct ttm_bo_driver|.
v2:
* drm_is_gem_vram() is now a private function
* documentation fixes
Signed-off-by: Thomas Zimmermann
---
drivers/gpu/drm/drm_gem_vram_helper.c | 50 +++
The data structure |struct drm_vram_mm| and its helpers replace ast's
TTM-based memory manager. It's the same implementation; except for the
type names.
v2:
* implement ast_mmap() with drm_vram_mm_mmap()
Signed-off-by: Thomas Zimmermann
---
drivers/gpu/drm/ast/Kconfig| 1 +
The VRAM MM memory manager is a helper library that manages dedicated video
memory of simple framebuffer devices. It is supported to be used with
struct drm_gem_vram_object, but does not depend on it.
The implementation is based on the respective code from ast, bochs, and
mgag200. These drivers
The type |struct drm_gem_vram_object| implements a GEM object for simple
framebuffer devices with dedicated video memory. The BO is either located
in VRAM or system memory.
The implementation has been created from the respective code in ast,
bochs and mgag200. These drivers copy their
The provided helpers can be used for the respective callback functions
in |struct drm_driver|.
v2:
* documentation fixes
Signed-off-by: Thomas Zimmermann
---
drivers/gpu/drm/drm_gem_vram_helper.c | 48 +++
include/drm/drm_gem_vram_helper.h | 10 ++
2
Several simple framebuffer drivers copy most of the TTM code from each
other. The implementation is always the same; except for the name of
some data structures.
As recently discussed, this patch set provides generic memory-management
code for simple framebuffers with dedicated video memory. It
The helper function drm_gem_vram_fill_create_dumb() implements most of
struct drm_driver.dumb_create() for GEM-VRAM buffer objects. It's not a
full implemenation of the callback, as several driver-specific parameters
are still required.
v2:
* documentation fixes
Signed-off-by: Thomas
Introduce interfaces for ballooning enqueueing and dequeueing of a list
of pages. These interfaces reduce the overhead of storing and restoring
IRQs by batching the operations. In addition they do not panic if the
list of pages is empty.
Cc: "Michael S. Tsirkin"
Cc: Jason Wang
Cc:
Add support for compaction for VMware balloon. Since unlike the virtio
balloon, we also support huge-pages, which are not going through
compaction, we keep these pages in vmballoon and handle this list
separately. We use the same lock to protect both lists, as this lock is
not supposed to be
Add a shrinker to the VMware balloon to prevent out-of-memory events.
We reuse the deflate logic for this matter. Deadlocks should not happen,
as no memory allocation is performed while the locks of the
communication (batch/page) and page-list are taken. In the unlikely
event in which the
The hypervisor might refuse to inflate pages. While the balloon driver
handles this scenario correctly, a refusal to inflate a 2MB pages might
cause the same page to be allocated again later just for its inflation
to be refused again. This wastes energy and time.
To avoid this situation, split
VMware balloon enhancements: adding support for memory compaction,
memory shrinker (to prevent OOM) and splitting of refused pages to
prevent recurring inflations.
Patches 1-2: Support for compaction
Patch 3: Support for memory shrinker - disabled by default
Patch 4: Split refused pages to
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