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drm/ttm: Implement intersect/compatible functions

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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
This commit is contained in:
Arunpravin Paneer Selvam 2022-08-20 00:33:00 -07:00 committed by Christian König
parent 544432703b
commit 75ba3121ac
1 changed files with 33 additions and 0 deletions
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33
drivers/gpu/drm/ttm/ttm_range_manager.c
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@ -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
};