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| author | Matthew Auld <matthew.auld@intel.com> | 2021-09-29 16:26:29 +0300 |
|---|---|---|
| committer | Christian König <christian.koenig@amd.com> | 2021-09-29 17:18:43 +0300 |
| commit | 49e7f76fc514cecf2cad1303fa74d99be7e5d9a6 (patch) | |
| tree | a6d3bbef93cab42511fc29f9fb9b4b86301d74e4 /drivers/hwmon/w83791d.c | |
| parent | a5a3dd42fe1314a77972d8682156078de3d0410d (diff) | |
| download | linux-49e7f76fc514cecf2cad1303fa74d99be7e5d9a6.tar.xz | |
drm/ttm: add TTM_TT_FLAG_EXTERNAL_MAPPABLE
In commit:
commit 667a50db0477d47fdff01c666f5ee1ce26b5264c
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>
Diffstat (limited to 'drivers/hwmon/w83791d.c')
0 files changed, 0 insertions, 0 deletions