drm/i915/ttm: remove the virtualized start hack

This was mostly needed to differentiate between mappable and
non-mappable lmem, such that ttm would understand non-mappable ->
mappable moves (or vice versa), and not just turn them into noops. We
have since gained proper .intersects() and .compatible() hooks for the
resource manager, which takes care of this for us.

Signed-off-by: Matthew Auld <matthew.auld@intel.com>
Cc: Nirmoy Das <nirmoy.das@intel.com>
Cc: Andrzej Hajda <andrzej.hajda@intel.com>
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221220112736.161642-1-matthew.auld@intel.com

diff --git a/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c b/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c
index a72698a2dbc8659724949aed53e34776a3162dea..a1bc804cfa1520fd05640c7d1acd5a7ac402efbd 100644 (file)
--- a/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c
+++ b/drivers/gpu/drm/i915/i915_ttm_buddy_manager.c
@@ -139,13 +139,6 @@ 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;