kernel/include/drm/ttm/ttm_memory.h, branch linux-4.15.y

drm/ttm: add support for different pool sizes

2017-10-06T21:44:16Z

Correctly handle different page sizes in the memory accounting. Signed-off-by: Christian König Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/ttm: remove unsued options from ttm_mem_global_alloc_page

2017-10-06T21:44:14Z

Nobody is actually using that, remove it. Signed-off-by: Christian König Reviewed-by: Felix Kuehling Signed-off-by: Alex Deucher

drm/ttm: Add interface to export kernel_zone max memory size in ttm

2016-08-08T15:33:08Z

Signed-off-by: Ken Wang Reviewed-by: Alex Deucher Reviewed-by: Christian König Signed-off-by: Alex Deucher

drm/ttm: remove ttm_mem_global->queue

2012-11-20T06:06:22Z

It's unused. Signed-off-by: Marcin Slusarz Reviewed-by: Thomas Hellstrom Signed-off-by: Dave Airlie

BUG: headers with BUG/BUG_ON etc. need linux/bug.h

2012-03-04T22:54:34Z

If a header file is making use of BUG, BUG_ON, BUILD_BUG_ON, or any other BUG variant in a static inline (i.e. not in a #define) then that header really should be including and not just expecting it to be implicitly present. We can make this change risk-free, since if the files using these headers didn't have exposure to linux/bug.h already, they would have been causing compile failures/warnings. Signed-off-by: Paul Gortmaker

ttm: Fix spelling mistakes and remove unused #ifdef

2011-06-21T02:33:18Z

. and some comments to make it easier to understand. Ackedby: Randy Dunlap [v2: Added some more updates from Randy Dunlap] Signed-off-by: Konrad Rzeszutek Wilk Signed-off-by: Dave Airlie

drm/ttm: Fix build failure due to missing struct page

2009-12-03T23:11:16Z

drm/ttm fails to build on MIPS because "struct page" is not known: | In file included from drivers/gpu/drm/ttm/ttm_memory.c:28: | include/drm/ttm/ttm_memory.h:154: warning: 'struct page' declared inside parameter list | include/drm/ttm/ttm_memory.h:154: warning: its scope is only this definition or declaration, which is probably not what you want | include/drm/ttm/ttm_memory.h:156: warning: 'struct page' declared inside parameter list | drivers/gpu/drm/ttm/ttm_memory.c:540: error: conflicting types for 'ttm_mem_global_alloc_page' | include/drm/ttm/ttm_memory.h:154: error: previous declaration of 'ttm_mem_global_alloc_page' was here | drivers/gpu/drm/ttm/ttm_memory.c:561: error: conflicting types for 'ttm_mem_global_free_page' | include/drm/ttm/ttm_memory.h:156: error: previous declaration of 'ttm_mem_global_free_page' was here Signed-off-by: Martin Michlmayr Cc: stable@kernel.org Acked-by: Thomas Hellstrom Signed-off-by: Dave Airlie

drm/ttm: Memory accounting rework.

2009-08-19T06:09:53Z

Use inclusive zones to simplify accounting and its sysfs representation. Use DMA32 accounting where applicable. Add a sysfs interface to make the heuristically determined limits readable and configurable. Signed-off-by: Thomas Hellstrom Signed-off-by: Dave Airlie

drm: Add the TTM GPU memory manager subsystem.

2009-06-14T23:37:57Z

TTM is a GPU memory manager subsystem designed for use with GPU devices with various memory types (On-card VRAM, AGP, PCI apertures etc.). It's essentially a helper library that assists the DRM driver in creating and managing persistent buffer objects. TTM manages placement of data and CPU map setup and teardown on data movement. It can also optionally manage synchronization of data on a per-buffer-object level. TTM takes care to provide an always valid virtual user-space address to a buffer object which makes user-space sub-allocation of big buffer objects feasible. TTM uses a fine-grained per buffer-object locking scheme, taking care to release all relevant locks when waiting for the GPU. Although this implies some locking overhead, it's probably a big win for devices with multiple command submission mechanisms, since the lock contention will be minimal. TTM can be used with whatever user-space interface the driver chooses, including GEM. It's used by the upcoming Radeon KMS DRM driver and is also the GPU memory management core of various new experimental DRM drivers. Signed-off-by: Thomas Hellstrom Signed-off-by: Jerome Glisse Signed-off-by: Dave Airlie