#include "xe_sriov.h"
#include "xe_sriov_pf.h"
#include "xe_step.h"
+#include "xe_tile_debugfs.h"
#include "xe_wa.h"
#include "xe_vsec.h"
.write = atomic_svm_timeslice_ms_set,
};
-static void create_tile_debugfs(struct xe_tile *tile, struct dentry *root)
-{
- char name[8];
-
- snprintf(name, sizeof(name), "tile%u", tile->id);
- tile->debugfs = debugfs_create_dir(name, root);
- if (IS_ERR(tile->debugfs))
- return;
-
- /*
- * Store the xe_tile pointer as private data of the tile/ directory
- * node so other tile specific attributes under that directory may
- * refer to it by looking at its parent node private data.
- */
- tile->debugfs->d_inode->i_private = tile;
-}
-
void xe_debugfs_register(struct xe_device *xe)
{
struct ttm_device *bdev = &xe->ttm;
ttm_resource_manager_create_debugfs(man, root, "stolen_mm");
for_each_tile(tile, xe, tile_id)
- create_tile_debugfs(tile, root);
+ xe_tile_debugfs_register(tile);
for_each_gt(gt, xe, id)
xe_gt_debugfs_register(gt);
return ret;
}
-static int sa_info(struct xe_gt *gt, struct drm_printer *p)
-{
- struct xe_tile *tile = gt_to_tile(gt);
-
- xe_pm_runtime_get(gt_to_xe(gt));
- drm_suballoc_dump_debug_info(&tile->mem.kernel_bb_pool->base, p,
- xe_sa_manager_gpu_addr(tile->mem.kernel_bb_pool));
- xe_pm_runtime_put(gt_to_xe(gt));
-
- return 0;
-}
-
static int sa_info_vf_ccs(struct xe_gt *gt, struct drm_printer *p)
{
struct xe_tile *tile = gt_to_tile(gt);
* - without access to the PF specific data
*/
static const struct drm_info_list vf_safe_debugfs_list[] = {
- {"sa_info", .show = xe_gt_debugfs_simple_show, .data = sa_info},
{"topology", .show = xe_gt_debugfs_simple_show, .data = topology},
{"ggtt", .show = xe_gt_debugfs_simple_show, .data = ggtt},
{"register-save-restore", .show = xe_gt_debugfs_simple_show, .data = register_save_restore},
--- /dev/null
+// SPDX-License-Identifier: MIT
+/*
+ * Copyright © 2025 Intel Corporation
+ */
+
+#include <linux/debugfs.h>
+#include <drm/drm_debugfs.h>
+
+#include "xe_pm.h"
+#include "xe_sa.h"
+#include "xe_tile_debugfs.h"
+
+static struct xe_tile *node_to_tile(struct drm_info_node *node)
+{
+ return node->dent->d_parent->d_inode->i_private;
+}
+
+/**
+ * tile_debugfs_simple_show - A show callback for struct drm_info_list
+ * @m: the &seq_file
+ * @data: data used by the drm debugfs helpers
+ *
+ * This callback can be used in struct drm_info_list to describe debugfs
+ * files that are &xe_tile specific.
+ *
+ * It is assumed that those debugfs files will be created on directory entry
+ * which struct dentry d_inode->i_private points to &xe_tile.
+ *
+ * /sys/kernel/debug/dri/0/
+ * ├── tile0/ # tile = dentry->d_inode->i_private
+ * │ │ ├── id # tile = dentry->d_parent->d_inode->i_private
+ *
+ * This function assumes that &m->private will be set to the &struct
+ * drm_info_node corresponding to the instance of the info on a given &struct
+ * drm_minor (see struct drm_info_list.show for details).
+ *
+ * This function also assumes that struct drm_info_list.data will point to the
+ * function code that will actually print a file content::
+ *
+ * int (*print)(struct xe_tile *, struct drm_printer *)
+ *
+ * Example::
+ *
+ * int tile_id(struct xe_tile *tile, struct drm_printer *p)
+ * {
+ * drm_printf(p, "%u\n", tile->id);
+ * return 0;
+ * }
+ *
+ * static const struct drm_info_list info[] = {
+ * { name = "id", .show = tile_debugfs_simple_show, .data = tile_id },
+ * };
+ *
+ * dir = debugfs_create_dir("tile0", parent);
+ * dir->d_inode->i_private = tile;
+ * drm_debugfs_create_files(info, ARRAY_SIZE(info), dir, minor);
+ *
+ * Return: 0 on success or a negative error code on failure.
+ */
+static int tile_debugfs_simple_show(struct seq_file *m, void *data)
+{
+ struct drm_printer p = drm_seq_file_printer(m);
+ struct drm_info_node *node = m->private;
+ struct xe_tile *tile = node_to_tile(node);
+ int (*print)(struct xe_tile *, struct drm_printer *) = node->info_ent->data;
+
+ return print(tile, &p);
+}
+
+/**
+ * tile_debugfs_show_with_rpm - A show callback for struct drm_info_list
+ * @m: the &seq_file
+ * @data: data used by the drm debugfs helpers
+ *
+ * Similar to tile_debugfs_simple_show() but implicitly takes a RPM ref.
+ *
+ * Return: 0 on success or a negative error code on failure.
+ */
+static int tile_debugfs_show_with_rpm(struct seq_file *m, void *data)
+{
+ struct drm_info_node *node = m->private;
+ struct xe_tile *tile = node_to_tile(node);
+ struct xe_device *xe = tile_to_xe(tile);
+ int ret;
+
+ xe_pm_runtime_get(xe);
+ ret = tile_debugfs_simple_show(m, data);
+ xe_pm_runtime_put(xe);
+
+ return ret;
+}
+
+static int sa_info(struct xe_tile *tile, struct drm_printer *p)
+{
+ drm_suballoc_dump_debug_info(&tile->mem.kernel_bb_pool->base, p,
+ xe_sa_manager_gpu_addr(tile->mem.kernel_bb_pool));
+
+ return 0;
+}
+
+/* only for debugfs files which can be safely used on the VF */
+static const struct drm_info_list vf_safe_debugfs_list[] = {
+ { "sa_info", .show = tile_debugfs_show_with_rpm, .data = sa_info },
+};
+
+/**
+ * xe_tile_debugfs_register - Register tile's debugfs attributes
+ * @tile: the &xe_tile to register
+ *
+ * Create debugfs sub-directory with a name that includes a tile ID and
+ * then creates set of debugfs files (attributes) specific to this tile.
+ */
+void xe_tile_debugfs_register(struct xe_tile *tile)
+{
+ struct xe_device *xe = tile_to_xe(tile);
+ struct drm_minor *minor = xe->drm.primary;
+ struct dentry *root = minor->debugfs_root;
+ char name[8];
+
+ snprintf(name, sizeof(name), "tile%u", tile->id);
+ tile->debugfs = debugfs_create_dir(name, root);
+ if (IS_ERR(tile->debugfs))
+ return;
+
+ /*
+ * Store the xe_tile pointer as private data of the tile/ directory
+ * node so other tile specific attributes under that directory may
+ * refer to it by looking at its parent node private data.
+ */
+ tile->debugfs->d_inode->i_private = tile;
+
+ drm_debugfs_create_files(vf_safe_debugfs_list,
+ ARRAY_SIZE(vf_safe_debugfs_list),
+ tile->debugfs, minor);
+}
projects / thirdparty / kernel / stable.git / commitdiff
