diff options
| author | Matthew Auld <matthew.auld@intel.com> | 2022-02-25 14:55:00 +0000 |
|---|---|---|
| committer | Matthew Auld <matthew.auld@intel.com> | 2022-02-28 08:47:34 +0000 |
| commit | f9eb742988e20fb86926de8ad18d7e93b53d1a62 (patch) | |
| tree | 707746829e7e8d01cc5cf6651631575d950da911 /drivers | |
| parent | 26ffcbbef712f6fb52f16e6f7d5cde736b80d8c4 (diff) | |
drm/i915/buddy: adjust res->start
Differentiate between mappable vs non-mappable resources, also if this
is an actual range allocation ensure we set res->start as the starting
pfn. Later when we need to do non-mappable -> mappable moves then we
want TTM to see that the current placement is not compatible, which
should result in an actual move, instead of being turned into a noop.
Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Acked-by: Nirmoy Das <nirmoy.das@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220225145502.331818-5-matthew.auld@intel.com
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/i915/i915_ttm_buddy_manager.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c b/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c index e47a3d46c6ff..0ac6b2463fd5 100644 --- a/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c +++ b/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c @@ -141,6 +141,13 @@ static int i915_ttm_buddy_man_alloc(struct ttm_resource_manager *man, mutex_unlock(&bman->lock); } + if (place->lpfn - place->fpfn == n_pages) + bman_res->base.start = place->fpfn; + else if (lpfn <= bman->visible_size) + bman_res->base.start = 0; + else + bman_res->base.start = bman->visible_size; + *res = &bman_res->base; return 0; |