Information about userspace allocated buffers can already be seen with
debugfs file vmwgfx_gem_info.
Add a debugfs file vmwgfx_buffer_info that also displays information about
vmwgfx buffers allocated by the kernel.
Also display name of the original process that allocated the buffer object
in both of these files.
Signed-off-by: Maaz Mombasawala <maaz.mombasaw...@broadcom.com>
---
drivers/gpu/drm/vmwgfx/vmwgfx_bo.c | 120 ++++++++++++++++++++++++++++
drivers/gpu/drm/vmwgfx/vmwgfx_bo.h | 8 ++
drivers/gpu/drm/vmwgfx/vmwgfx_drv.c | 4 +-
drivers/gpu/drm/vmwgfx/vmwgfx_gem.c | 51 ------------
4 files changed, 131 insertions(+), 52 deletions(-)
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c
b/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c
index f42ebc4a7c22..2d6922ada481 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c
@@ -31,6 +31,7 @@
#include "vmwgfx_resource_priv.h"
#include <drm/ttm/ttm_placement.h>
+#include <linux/debugfs.h>
static void vmw_bo_release(struct vmw_bo *vbo)
{
@@ -436,6 +437,8 @@ static int vmw_bo_init(struct vmw_private *dev_priv,
ttm_bo_pin(&vmw_bo->tbo);
ttm_bo_unreserve(&vmw_bo->tbo);
+ get_task_comm(vmw_bo->origin_comm, current);
+
return 0;
}
@@ -878,3 +881,120 @@ struct vmw_surface *vmw_bo_surface(struct vmw_bo *vbo)
surf = vmw_res_to_srf(res);
return surf;
}
+
+#if defined(CONFIG_DEBUG_FS)
+
+void vmw_bo_print_info(int id, struct vmw_bo *bo, struct seq_file *m)
+{
+ const char *placement;
+ const char *type;
+
+ switch (bo->tbo.resource->mem_type) {
+ case TTM_PL_SYSTEM:
+ placement = " CPU";
+ break;
+ case VMW_PL_GMR:
+ placement = " GMR";
+ break;
+ case VMW_PL_MOB:
+ placement = " MOB";
+ break;
+ case VMW_PL_SYSTEM:
+ placement = "VCPU";
+ break;
+ case TTM_PL_VRAM:
+ placement = "VRAM";
+ break;
+ default:
+ placement = "None";
+ break;
+ }
+
+ switch (bo->tbo.type) {
+ case ttm_bo_type_device:
+ type = "device";
+ break;
+ case ttm_bo_type_kernel:
+ type = "kernel";
+ break;
+ case ttm_bo_type_sg:
+ type = "sg ";
+ break;
+ default:
+ type = "none ";
+ break;
+ }
+
+ if (id)
+ seq_printf(m, "\t\t0x%08x: %12zu bytes %s, type = %s", id,
+ bo->tbo.base.size, placement, type);
+ else
+ seq_printf(m, "\t%12zu bytes, placement = %s, type = %s",
+ bo->tbo.base.size, placement, type);
+ seq_printf(m, ", priority = %u, pin_count = %u, GEM refs = %d, TTM refs
= %d, Origin proc: %16s",
+ bo->tbo.priority,
+ bo->tbo.pin_count,
+ kref_read(&bo->tbo.base.refcount),
+ kref_read(&bo->tbo.kref),
+ bo->origin_comm);
+ seq_puts(m, "\n");
+}
+
+static void vmw_debugfs_print_ttm_list_info(struct seq_file *m,
+ struct list_head *ttm_list)
+{
+ struct ttm_resource *res;
+ struct ttm_lru_item *lru, *tmp;
+
+ list_for_each_entry_safe(lru, tmp, ttm_list, link) {
+ struct ttm_buffer_object *tbo;
+ struct vmw_bo *bo;
+
+ if (lru->type != TTM_LRU_RESOURCE)
+ continue;
+ res = container_of(lru, struct ttm_resource, lru);
+ tbo = res->bo;
+ bo = container_of(tbo, struct vmw_bo, tbo);
+ vmw_bo_print_info(0, bo, m);
+ }
+}
+
+static int vmw_debugfs_buffer_info_show(struct seq_file *m, void *unused)
+{
+ struct vmw_private *vdev = (struct vmw_private *)m->private;
+ struct ttm_device *bdev = &vdev->bdev;
+ struct ttm_resource_manager *man;
+ int man_itr, pr_itr;
+
+ seq_puts(m, "LRU buffers -\n");
+ for (man_itr = 0; man_itr < TTM_NUM_MEM_TYPES; man_itr++) {
+ man = ttm_manager_type(&vdev->bdev, man_itr);
+ if (!man)
+ continue;
+ for (pr_itr = 0; pr_itr < TTM_MAX_BO_PRIORITY; pr_itr++) {
+ spin_lock(&bdev->lru_lock);
+ vmw_debugfs_print_ttm_list_info(m, &man->lru[pr_itr]);
+ spin_unlock(&bdev->lru_lock);
+ }
+ }
+ seq_puts(m, "Pinned buffers -\n");
+ spin_lock(&bdev->lru_lock);
+ vmw_debugfs_print_ttm_list_info(m, &bdev->pinned);
+ spin_unlock(&bdev->lru_lock);
+ return 0;
+}
+
+DEFINE_SHOW_ATTRIBUTE(vmw_debugfs_buffer_info);
+
+#endif
+
+void vmw_debugfs_buffer_init(struct vmw_private *vdev)
+{
+#if defined(CONFIG_DEBUG_FS)
+ struct drm_minor *minor = vdev->drm.primary;
+ struct dentry *root = minor->debugfs_root;
+
+ debugfs_create_file("vmwgfx_buffer_info", 0444, root, vdev,
+ &vmw_debugfs_buffer_info_fops);
+#endif
+}
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_bo.h
b/drivers/gpu/drm/vmwgfx/vmwgfx_bo.h
index 62b4342d5f7c..3e197a7b8d53 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_bo.h
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_bo.h
@@ -97,6 +97,8 @@ struct vmw_bo {
bool is_dumb;
struct vmw_surface *dumb_surface;
+
+ char origin_comm[TASK_COMM_LEN];
};
void vmw_bo_placement_set(struct vmw_bo *bo, u32 domain, u32 busy_domain);
@@ -146,6 +148,12 @@ int vmw_user_bo_lookup(struct drm_file *filp,
u32 handle,
struct vmw_bo **out);
+void vmw_debugfs_buffer_init(struct vmw_private *vdev);
+
+#if defined(CONFIG_DEBUG_FS)
+void vmw_bo_print_info(int id, struct vmw_bo *bo, struct seq_file *m);
+#endif
+
/**
* vmw_bo_adjust_prio - Adjust the buffer object eviction priority
* according to attached resources
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index 50ad3105c16e..be7763158a5a 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -1,7 +1,8 @@
// SPDX-License-Identifier: GPL-2.0 OR MIT
/**************************************************************************
*
- * Copyright 2009-2023 VMware, Inc., Palo Alto, CA., USA
+ * Copyright (c) 2011-2024 Broadcom. All Rights Reserved. The term
+ * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
@@ -1682,6 +1683,7 @@ static int vmw_probe(struct pci_dev *pdev, const struct
pci_device_id *ent)
drm_fbdev_ttm_setup(&vmw->drm, 0);
vmw_debugfs_gem_init(vmw);
+ vmw_debugfs_buffer_init(vmw);
vmw_debugfs_resource_managers_init(vmw);
return 0;
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_gem.c
b/drivers/gpu/drm/vmwgfx/vmwgfx_gem.c
index b9857f37ca1a..08cb0cddf5ef 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_gem.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_gem.c
@@ -254,57 +254,6 @@ int vmw_gem_object_create_ioctl(struct drm_device *dev,
void *data,
#if defined(CONFIG_DEBUG_FS)
-static void vmw_bo_print_info(int id, struct vmw_bo *bo, struct seq_file *m)
-{
- const char *placement;
- const char *type;
-
- switch (bo->tbo.resource->mem_type) {
- case TTM_PL_SYSTEM:
- placement = " CPU";
- break;
- case VMW_PL_GMR:
- placement = " GMR";
- break;
- case VMW_PL_MOB:
- placement = " MOB";
- break;
- case VMW_PL_SYSTEM:
- placement = "VCPU";
- break;
- case TTM_PL_VRAM:
- placement = "VRAM";
- break;
- default:
- placement = "None";
- break;
- }
-
- switch (bo->tbo.type) {
- case ttm_bo_type_device:
- type = "device";
- break;
- case ttm_bo_type_kernel:
- type = "kernel";
- break;
- case ttm_bo_type_sg:
- type = "sg ";
- break;
- default:
- type = "none ";
- break;
- }
-
- seq_printf(m, "\t\t0x%08x: %12zu bytes %s, type = %s",
- id, bo->tbo.base.size, placement, type);
- seq_printf(m, ", priority = %u, pin_count = %u, GEM refs = %d, TTM refs
= %d",
- bo->tbo.priority,
- bo->tbo.pin_count,
- kref_read(&bo->tbo.base.refcount),
- kref_read(&bo->tbo.kref));
- seq_puts(m, "\n");
-}
-
static int vmw_debugfs_gem_info_show(struct seq_file *m, void *unused)
{
struct vmw_private *vdev = (struct vmw_private *)m->private;
--
2.34.1
