drm/ttm: Convert vm callbacks to helpers

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The default TTM fault handler may not be completely sufficient
(vmwgfx needs to do some bookkeeping, control the write protectionand also
needs to restrict the number of prefaults).

Also make it possible replicate ttm_bo_vm_reserve() functionality for,
for example, mkwrite handlers.

So turn the TTM vm code into helpers: ttm_bo_vm_fault_reserved(),
ttm_bo_vm_open(), ttm_bo_vm_close() and ttm_bo_vm_reserve(). Also provide
a default TTM fault handler for other drivers to use.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Reviewed-by: Christian König <christian.koenig@amd.com>

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This commit is contained in:

Thomas Hellstrom 2019-02-06 12:55:08 +01:00

parent 13f8a6148a

commit 7aef29f4d4

2 changed files with 119 additions and 63 deletions

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include/drm/ttm/ttm_bo_api.h

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