diff options
| author | Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com> | 2022-08-20 00:33:00 -0700 |
|---|---|---|
| committer | Christian König <christian.koenig@amd.com> | 2022-08-22 15:33:50 +0200 |
| commit | 75ba3121acd58b71ee1d2f6e30ab44748d4397de (patch) | |
| tree | 2e429114e53955ce5292b0500440078e8625ee6b /drivers | |
| parent | 544432703b2fe73a07f387c0b883da03ffa5671e (diff) | |
drm/ttm: Implement intersect/compatible functions
Implemented a new intersect and compatible callback functions
to ttm range manager fetching start offset from drm mm range
allocator.
Signed-off-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Arunpravin Paneer Selvam <Arunpravin.PaneerSelvam@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20220820073304.178444-2-Arunpravin.PaneerSelvam@amd.com
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/gpu/drm/ttm/ttm_range_manager.c | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/drivers/gpu/drm/ttm/ttm_range_manager.c b/drivers/gpu/drm/ttm/ttm_range_manager.c index d91666721dc6..4cfef2b3514d 100644 --- a/drivers/gpu/drm/ttm/ttm_range_manager.c +++ b/drivers/gpu/drm/ttm/ttm_range_manager.c @@ -113,6 +113,37 @@ static void ttm_range_man_free(struct ttm_resource_manager *man, kfree(node); } +static bool ttm_range_man_intersects(struct ttm_resource_manager *man, + struct ttm_resource *res, + const struct ttm_place *place, + size_t size) +{ + struct drm_mm_node *node = &to_ttm_range_mgr_node(res)->mm_nodes[0]; + u32 num_pages = PFN_UP(size); + + /* Don't evict BOs outside of the requested placement range */ + if (place->fpfn >= (node->start + num_pages) || + (place->lpfn && place->lpfn <= node->start)) + return false; + + return true; +} + +static bool ttm_range_man_compatible(struct ttm_resource_manager *man, + struct ttm_resource *res, + const struct ttm_place *place, + size_t size) +{ + struct drm_mm_node *node = &to_ttm_range_mgr_node(res)->mm_nodes[0]; + u32 num_pages = PFN_UP(size); + + if (node->start < place->fpfn || + (place->lpfn && (node->start + num_pages) > place->lpfn)) + return false; + + return true; +} + static void ttm_range_man_debug(struct ttm_resource_manager *man, struct drm_printer *printer) { @@ -126,6 +157,8 @@ static void ttm_range_man_debug(struct ttm_resource_manager *man, static const struct ttm_resource_manager_func ttm_range_manager_func = { .alloc = ttm_range_man_alloc, .free = ttm_range_man_free, + .intersects = ttm_range_man_intersects, + .compatible = ttm_range_man_compatible, .debug = ttm_range_man_debug }; |