drm/xe/stolen: convert compat static inlines to proper functions

Add display/xe_stolen.c as the implementation for the stolen interface
exposed to display. This allows hiding the implementation details that
shouldn't be exposed to display.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://lore.kernel.org/r/8e807c6aafc6151b18df08dda20053516813e001.1758732183.git.jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>

1 files changed, 99 insertions, 0 deletions

diff --git a/drivers/gpu/drm/xe/display/xe_stolen.c b/drivers/gpu/drm/xe/display/xe_stolen.c
new file mode 100644
index 000000000000..ab156a9f2c26
--- /dev/null
+++ b/drivers/gpu/drm/xe/display/xe_stolen.c
@@ -0,0 +1,99 @@
+// SPDX-License-Identifier: MIT
+/* Copyright © 2025 Intel Corporation */
+
+#include "gem/i915_gem_stolen.h"
+#include "xe_res_cursor.h"
+#include "xe_ttm_stolen_mgr.h"
+#include "xe_validation.h"
+
+int i915_gem_stolen_insert_node_in_range(struct xe_device *xe,
+					 struct intel_stolen_node *node,
+					 u32 size, u32 align,
+					 u32 start, u32 end)
+{
+	struct xe_bo *bo;
+	int err = 0;
+	u32 flags = XE_BO_FLAG_PINNED | XE_BO_FLAG_STOLEN;
+
+	if (start < SZ_4K)
+		start = SZ_4K;
+
+	if (align) {
+		size = ALIGN(size, align);
+		start = ALIGN(start, align);
+	}
+
+	bo = xe_bo_create_pin_range_novm(xe, xe_device_get_root_tile(xe),
+					 size, start, end, ttm_bo_type_kernel, flags);
+	if (IS_ERR(bo)) {
+		err = PTR_ERR(bo);
+		bo = NULL;
+		return err;
+	}
+
+	node->bo = bo;
+
+	return err;
+}
+
+int i915_gem_stolen_insert_node(struct xe_device *xe,
+				struct intel_stolen_node *node,
+				u32 size, u32 align)
+{
+	/* Not used on xe */
+	WARN_ON(1);
+
+	return -ENODEV;
+}
+
+void i915_gem_stolen_remove_node(struct xe_device *xe,
+				 struct intel_stolen_node *node)
+{
+	xe_bo_unpin_map_no_vm(node->bo);
+	node->bo = NULL;
+}
+
+bool i915_gem_stolen_initialized(struct xe_device *xe)
+{
+	return ttm_manager_type(&xe->ttm, XE_PL_STOLEN);
+}
+
+bool i915_gem_stolen_node_allocated(const struct intel_stolen_node *node)
+{
+	return node->bo;
+}
+
+u32 i915_gem_stolen_node_offset(struct intel_stolen_node *node)
+{
+	struct xe_res_cursor res;
+
+	xe_res_first(node->bo->ttm.resource, 0, 4096, &res);
+	return res.start;
+}
+
+/* Used for < gen4. These are not supported by Xe */
+u64 i915_gem_stolen_area_address(const struct xe_device *xe)
+{
+	WARN_ON(1);
+
+	return 0;
+}
+
+/* Used for gen9 specific WA. Gen9 is not supported by Xe */
+u64 i915_gem_stolen_area_size(const struct xe_device *xe)
+{
+	WARN_ON(1);
+
+	return 0;
+}
+
+u64 i915_gem_stolen_node_address(struct xe_device *xe,
+				 struct intel_stolen_node *node)
+{
+	return xe_ttm_stolen_gpu_offset(xe) + i915_gem_stolen_node_offset(node);
+}
+
+u64 i915_gem_stolen_node_size(const struct intel_stolen_node *node)
+{
+	return node->bo->ttm.base.size;
+}