Adding upstream version 6.8.9.upstream/6.8.9

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 196 insertions, 0 deletions

diff --git a/drivers/gpu/drm/xe/xe_drm_client.c b/drivers/gpu/drm/xe/xe_drm_client.c
new file mode 100644
index 0000000000..6040e4d22b
--- /dev/null
+++ b/drivers/gpu/drm/xe/xe_drm_client.c
@@ -0,0 +1,196 @@
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2023 Intel Corporation
+ */
+
+#include <drm/drm_print.h>
+#include <drm/xe_drm.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/types.h>
+
+#include "xe_bo.h"
+#include "xe_bo_types.h"
+#include "xe_device_types.h"
+#include "xe_drm_client.h"
+#include "xe_trace.h"
+
+/**
+ * xe_drm_client_alloc() - Allocate drm client
+ * @void: No arg
+ *
+ * Allocate drm client struct to track client memory against
+ * same till client life. Call this API whenever new client
+ * has opened xe device.
+ *
+ * Return: pointer to client struct or NULL if can't allocate
+ */
+struct xe_drm_client *xe_drm_client_alloc(void)
+{
+	struct xe_drm_client *client;
+
+	client = kzalloc(sizeof(*client), GFP_KERNEL);
+	if (!client)
+		return NULL;
+
+	kref_init(&client->kref);
+
+#ifdef CONFIG_PROC_FS
+	spin_lock_init(&client->bos_lock);
+	INIT_LIST_HEAD(&client->bos_list);
+#endif
+	return client;
+}
+
+/**
+ * __xe_drm_client_free() - Free client struct
+ * @kref: The reference
+ *
+ * This frees client struct. Call this API when xe device is closed
+ * by drm client.
+ *
+ * Return: void
+ */
+void __xe_drm_client_free(struct kref *kref)
+{
+	struct xe_drm_client *client =
+		container_of(kref, typeof(*client), kref);
+
+	kfree(client);
+}
+
+#ifdef CONFIG_PROC_FS
+/**
+ * xe_drm_client_add_bo() - Add BO for tracking client mem usage
+ * @client: The drm client ptr
+ * @bo: The xe BO ptr
+ *
+ * Add all BO created by individual drm client by calling this function.
+ * This helps in tracking client memory usage.
+ *
+ * Return: void
+ */
+void xe_drm_client_add_bo(struct xe_drm_client *client,
+			  struct xe_bo *bo)
+{
+	XE_WARN_ON(bo->client);
+	XE_WARN_ON(!list_empty(&bo->client_link));
+
+	spin_lock(&client->bos_lock);
+	bo->client = xe_drm_client_get(client);
+	list_add_tail_rcu(&bo->client_link, &client->bos_list);
+	spin_unlock(&client->bos_lock);
+}
+
+/**
+ * xe_drm_client_remove_bo() - Remove BO for tracking client mem usage
+ * @bo: The xe BO ptr
+ *
+ * Remove all BO removed by individual drm client by calling this function.
+ * This helps in tracking client memory usage.
+ *
+ * Return: void
+ */
+void xe_drm_client_remove_bo(struct xe_bo *bo)
+{
+	struct xe_drm_client *client = bo->client;
+
+	spin_lock(&client->bos_lock);
+	list_del_rcu(&bo->client_link);
+	spin_unlock(&client->bos_lock);
+
+	xe_drm_client_put(client);
+}
+
+static void bo_meminfo(struct xe_bo *bo,
+		       struct drm_memory_stats stats[TTM_NUM_MEM_TYPES])
+{
+	u64 sz = bo->size;
+	u32 mem_type;
+
+	if (bo->placement.placement)
+		mem_type = bo->placement.placement->mem_type;
+	else
+		mem_type = XE_PL_TT;
+
+	if (bo->ttm.base.handle_count > 1)
+		stats[mem_type].shared += sz;
+	else
+		stats[mem_type].private += sz;
+
+	if (xe_bo_has_pages(bo)) {
+		stats[mem_type].resident += sz;
+
+		if (!dma_resv_test_signaled(bo->ttm.base.resv,
+					    DMA_RESV_USAGE_BOOKKEEP))
+			stats[mem_type].active += sz;
+		else if (mem_type == XE_PL_SYSTEM)
+			stats[mem_type].purgeable += sz;
+	}
+}
+
+static void show_meminfo(struct drm_printer *p, struct drm_file *file)
+{
+	struct drm_memory_stats stats[TTM_NUM_MEM_TYPES] = {};
+	struct xe_file *xef = file->driver_priv;
+	struct ttm_device *bdev = &xef->xe->ttm;
+	struct ttm_resource_manager *man;
+	struct xe_drm_client *client;
+	struct drm_gem_object *obj;
+	struct xe_bo *bo;
+	unsigned int id;
+	u32 mem_type;
+
+	client = xef->client;
+
+	/* Public objects. */
+	spin_lock(&file->table_lock);
+	idr_for_each_entry(&file->object_idr, obj, id) {
+		struct xe_bo *bo = gem_to_xe_bo(obj);
+
+		bo_meminfo(bo, stats);
+	}
+	spin_unlock(&file->table_lock);
+
+	/* Internal objects. */
+	spin_lock(&client->bos_lock);
+	list_for_each_entry_rcu(bo, &client->bos_list, client_link) {
+		if (!bo || !kref_get_unless_zero(&bo->ttm.base.refcount))
+			continue;
+		bo_meminfo(bo, stats);
+		xe_bo_put(bo);
+	}
+	spin_unlock(&client->bos_lock);
+
+	for (mem_type = XE_PL_SYSTEM; mem_type < TTM_NUM_MEM_TYPES; ++mem_type) {
+		if (!xe_mem_type_to_name[mem_type])
+			continue;
+
+		man = ttm_manager_type(bdev, mem_type);
+
+		if (man) {
+			drm_print_memory_stats(p,
+					       &stats[mem_type],
+					       DRM_GEM_OBJECT_RESIDENT |
+					       (mem_type != XE_PL_SYSTEM ? 0 :
+					       DRM_GEM_OBJECT_PURGEABLE),
+					       xe_mem_type_to_name[mem_type]);
+		}
+	}
+}
+
+/**
+ * xe_drm_client_fdinfo() - Callback for fdinfo interface
+ * @p: The drm_printer ptr
+ * @file: The drm_file ptr
+ *
+ * This is callabck for drm fdinfo interface. Register this callback
+ * in drm driver ops for show_fdinfo.
+ *
+ * Return: void
+ */
+void xe_drm_client_fdinfo(struct drm_printer *p, struct drm_file *file)
+{
+	show_meminfo(p, file);
+}
+#endif