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linux/include/drm/ttm
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Matthew Auld 49e7f76fc5 drm/ttm: add TTM_TT_FLAG_EXTERNAL_MAPPABLE 
In commit:

commit 667a50db04
Author: Thomas Hellstrom <thellstrom@vmware.com>
Date:   Fri Jan 3 11:17:18 2014 +0100

    drm/ttm: Refuse to fault (prime-) imported pages

we introduced the restriction that imported pages should not be directly
mappable through TTM(this also extends to userptr). In the next patch we
want to introduce a shmem_tt backend, which should follow all the
existing rules with TTM_PAGE_FLAG_EXTERNAL, since it will need to handle
swapping itself, but with the above mapping restriction lifted.

v2(Christian):
  - Don't OR together EXTERNAL and EXTERNAL_MAPPABLE in the definition
    of EXTERNAL_MAPPABLE, just leave it the caller to handle this
    correctly, otherwise we might encounter subtle issues.

Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210929132629.353541-3-matthew.auld@intel.com
Signed-off-by: Christian König <christian.koenig@amd.com>
2021-09-29 16:18:43 +02:00
..
ttm_bo_api.h drm/ttm: cleanup ttm_resource_compat 2021-09-03 11:03:59 +02:00
ttm_bo_driver.h drm/ttm: Add a generic TTM memcpy move for page-based iomem 2021-06-07 16:07:08 +02:00
ttm_caching.h drm/ttm: add kerneldoc for enum ttm_caching 2021-09-09 13:26:43 +02:00
ttm_device.h drm/ttm: s/FLAG_SG/FLAG_EXTERNAL/ 2021-09-29 16:17:56 +02:00
ttm_execbuf_util.h drm/ttm: remove superflous extern attribute from funcs 2020-09-17 16:14:42 +02:00
ttm_kmap_iter.h drm/ttm: Add a generic TTM memcpy move for page-based iomem 2021-06-07 16:07:08 +02:00
ttm_placement.h drm/ttm: enable TTM placement kerneldoc 2021-09-09 13:29:05 +02:00
ttm_pool.h drm/ttm: enable TTM page pool kerneldoc 2021-09-09 13:30:14 +02:00
ttm_range_manager.h drm/ttm: Try to check if new ttm man out of bounds during compile 2021-09-13 10:14:28 +02:00
ttm_resource.h drm/ttm: enable TTM resource object kerneldoc v2 2021-09-09 13:28:28 +02:00
ttm_tt.h drm/ttm: add TTM_TT_FLAG_EXTERNAL_MAPPABLE 2021-09-29 16:18:43 +02:00