platform: tegra: nvadsp: debug nodes for apps

Create debug nodes for each app through which various attributes for
the app can be exposed.

Bug 200064076

Change-Id: Ie594168084f14b79b673b13f33a24a3e19869b3f
Signed-off-by: Ajay Nandakumar <anandakumarm@nvidia.com>
Reviewed-on: http://git-master/r/721438
(cherry picked from commit 0d734a50644d5b113639e112cd5c409955bffb55)
Reviewed-on: http://git-master/r/662569
Reviewed-by: Sachin Nikam <snikam@nvidia.com>
Tested-by: Sachin Nikam <snikam@nvidia.com>

diff --git a/drivers/platform/tegra/nvadsp/app.c b/drivers/platform/tegra/nvadsp/app.c
index c827a85093d076697a6aea0ba444770fdb5d2360..2a3248fa299ba8f4a3801684e1829cd399277ef6 100644 (file)
--- a/drivers/platform/tegra/nvadsp/app.c
+++ b/drivers/platform/tegra/nvadsp/app.c
@@ -92,6 +92,9 @@ struct nvadsp_app_service {
        const struct app_mem_size *mem_size;
        int generated_instance_id;
        struct adsp_module *mod;
+#ifdef CONFIG_DEBUG_FS
+       struct dentry *debugfs;
+#endif
 };
 
 /* nvadsp app loader private structure */
@@ -101,10 +104,210 @@ struct nvadsp_app_priv_struct {
        struct nvadsp_mbox mbox;
        struct list_head service_list;
        struct mutex service_lock_list;
+#ifdef CONFIG_DEBUG_FS
+       struct dentry *adsp_app_debugfs_root;
+#endif
 };
 
 static struct nvadsp_app_priv_struct priv;
 
+#ifdef CONFIG_DEBUG_FS
+static int dump_binary_in_2bytes_app_file_node(struct seq_file *s, void *data)
+{
+       struct nvadsp_app_service *ser = s->private;
+       struct adsp_module *mod = ser->mod;
+       u32 adsp_ptr;
+       u16 *ptr;
+       int i;
+
+       adsp_ptr = mod->adsp_module_ptr;
+       ptr = (u16 *)mod->module_ptr;
+       for (i = 0; i < mod->size; i += 2)
+               seq_printf(s, "0x%x : 0x%04x\n", adsp_ptr + i, *(ptr + i));
+
+       return 0;
+}
+
+
+static int dump_binary_in_words_app_file_node(struct seq_file *s, void *data)
+{
+       struct nvadsp_app_service *ser = s->private;
+       struct adsp_module *mod = ser->mod;
+       u32 adsp_ptr;
+       u32 *ptr;
+       int i;
+
+       adsp_ptr = mod->adsp_module_ptr;
+       ptr = (u32 *)mod->module_ptr;
+       for (i = 0; i < mod->size; i += 4)
+               seq_printf(s, "0x%x : 0x%08x\n", adsp_ptr + i, *(ptr + i));
+
+       return 0;
+}
+
+static int host_load_addr_app_file_node(struct seq_file *s, void *data)
+{
+       struct nvadsp_app_service *ser = s->private;
+       struct adsp_module *mod = ser->mod;
+
+       seq_printf(s, "%p\n", mod->module_ptr);
+
+       return 0;
+}
+
+static int adsp_load_addr_app_file_node(struct seq_file *s, void *data)
+{
+       struct nvadsp_app_service *ser = s->private;
+       struct adsp_module *mod = ser->mod;
+
+       seq_printf(s, "0x%x\n", mod->adsp_module_ptr);
+
+       return 0;
+}
+
+static int size_app_file_node(struct seq_file *s, void *data)
+{
+       struct nvadsp_app_service *ser = s->private;
+       struct adsp_module *mod = ser->mod;
+
+       seq_printf(s, "%lu\n", mod->size);
+
+       return 0;
+}
+
+static int dram_app_file_node(struct seq_file *s, void *data)
+{
+       const struct app_mem_size *mem_size = s->private;
+
+       seq_printf(s, "%llu\n", mem_size->dram);
+
+       return 0;
+}
+
+static int dram_shared_app_file_node(struct seq_file *s, void *data)
+{
+       const struct app_mem_size *mem_size = s->private;
+
+       seq_printf(s, "%llu\n", mem_size->dram_shared);
+
+       return 0;
+}
+
+static int dram_shared_wc_app_file_node(struct seq_file *s, void *data)
+{
+       const struct app_mem_size *mem_size = s->private;
+
+       seq_printf(s, "%llu\n", mem_size->dram_shared_wc);
+
+       return 0;
+}
+
+static int aram_app_file_node(struct seq_file *s, void *data)
+{
+       const struct app_mem_size *mem_size = s->private;
+
+       seq_printf(s, "%llu\n", mem_size->aram);
+
+       return 0;
+}
+
+static int aram_exclusive_app_file_node(struct seq_file *s, void *data)
+{
+       const struct app_mem_size *mem_size = s->private;
+
+       seq_printf(s, "%llu\n", mem_size->aram_x);
+
+       return 0;
+}
+
+#define ADSP_APP_CREATE_FOLDER(x, root) \
+       do  {\
+               x = debugfs_create_dir(#x, root); \
+               if (IS_ERR_OR_NULL(x)) { \
+                       dev_err(dev, "unable to create app %s folder\n", #x); \
+                       ret = -ENOENT; \
+                       goto rm_debug_root; \
+               } \
+       } while (0)
+
+#define ADSP_APP_CREATE_FILE(x, priv, root) \
+       do { \
+               if (IS_ERR_OR_NULL(debugfs_create_file(#x, S_IRUGO, root, \
+                       priv, &x##_node_operations))) { \
+                       dev_err(dev, "unable tp create app %s file\n", #x); \
+                       ret = -ENOENT; \
+                       goto rm_debug_root; \
+               } \
+       } while (0)
+
+#define ADSP_APP_FILE_OPERATION(x) \
+static int x##_open(struct inode *inode, struct file *file) \
+{ \
+       return single_open(file, x##_app_file_node, inode->i_private); \
+} \
+\
+static const struct file_operations x##_node_operations = { \
+       .open = x##_open, \
+       .read = seq_read, \
+       .llseek = seq_lseek, \
+       .release = single_release, \
+};
+
+ADSP_APP_FILE_OPERATION(dump_binary_in_2bytes);
+ADSP_APP_FILE_OPERATION(dump_binary_in_words);
+ADSP_APP_FILE_OPERATION(host_load_addr);
+ADSP_APP_FILE_OPERATION(adsp_load_addr);
+ADSP_APP_FILE_OPERATION(size);
+
+ADSP_APP_FILE_OPERATION(dram);
+ADSP_APP_FILE_OPERATION(dram_shared);
+ADSP_APP_FILE_OPERATION(dram_shared_wc);
+ADSP_APP_FILE_OPERATION(aram);
+ADSP_APP_FILE_OPERATION(aram_exclusive);
+
+static int create_adsp_app_debugfs(struct nvadsp_app_service *ser)
+{
+
+       struct app_mem_size *mem_size = (struct app_mem_size *)ser->mem_size;
+       struct device *dev = &priv.pdev->dev;
+       struct dentry *instance_mem_sizes;
+       struct dentry *root;
+       int ret = 0;
+
+       root = debugfs_create_dir(ser->name,
+                       priv.adsp_app_debugfs_root);
+       if (IS_ERR_OR_NULL(root)) {
+               ret = -EINVAL;
+               goto err_out;
+       }
+
+       ADSP_APP_CREATE_FILE(dump_binary_in_2bytes, ser, root);
+       ADSP_APP_CREATE_FILE(dump_binary_in_words, ser, root);
+       ADSP_APP_CREATE_FILE(host_load_addr, ser, root);
+       ADSP_APP_CREATE_FILE(adsp_load_addr, ser, root);
+       ADSP_APP_CREATE_FILE(size, ser, root);
+       ADSP_APP_CREATE_FOLDER(instance_mem_sizes, root);
+       ADSP_APP_CREATE_FILE(dram, mem_size, instance_mem_sizes);
+       ADSP_APP_CREATE_FILE(dram_shared, mem_size, instance_mem_sizes);
+       ADSP_APP_CREATE_FILE(dram_shared_wc, mem_size, instance_mem_sizes);
+       ADSP_APP_CREATE_FILE(aram, mem_size, instance_mem_sizes);
+       ADSP_APP_CREATE_FILE(aram_exclusive, mem_size, instance_mem_sizes);
+
+       root = ser->debugfs;
+       return 0;
+rm_debug_root:
+       debugfs_remove_recursive(root);
+err_out:
+       return ret;
+}
+
+static int __init adsp_app_debug_init(struct dentry *root)
+{
+       priv.adsp_app_debugfs_root = debugfs_create_dir("adsp_apps", root);
+       return IS_ERR_OR_NULL(priv.adsp_app_debugfs_root) ? -ENOMEM : 0;
+}
+#endif /* CONFIG_DEBUG_FS */
+
 static struct nvadsp_app_service *get_loaded_service(const char *appfile)
 {
        struct device *dev = &priv.pdev->dev;
@@ -147,6 +350,9 @@ static nvadsp_app_handle_t app_load(const char *appfile)
 
                /* add the app instance service to the list */
                list_add_tail(&ser->node, &priv.service_list);
+#ifdef CONFIG_DEBUG_FS
+               create_adsp_app_debugfs(ser);
+#endif
                dev_dbg(dev, "loaded app %s\n", ser->name);
        }
        mutex_unlock(&priv.service_lock_list);
@@ -662,6 +868,9 @@ void nvadsp_app_unload(nvadsp_app_handle_t handle)
        }
 
        list_del(&ser->node);
+#ifdef CONFIG_DEBUG_FS
+       debugfs_remove_recursive(ser->debugfs);
+#endif
        unload_adsp_module(ser->mod);
        devm_kfree(dev, ser);
        mutex_unlock(&priv.service_lock_list);
@@ -742,9 +951,12 @@ int wait_for_adsp_os_load_complete(void)
 
 int nvadsp_app_module_probe(struct platform_device *pdev)
 {
-       int ret;
+#ifdef CONFIG_DEBUG_FS
+       struct nvadsp_drv_data *drv_data = platform_get_drvdata(pdev);
+#endif
        uint16_t mbox_id = APP_LOADER_MBOX_ID;
        struct device *dev = &pdev->dev;
+       int ret;
 
        dev_info(dev, "%s\n", __func__);
 
@@ -758,6 +970,11 @@ int nvadsp_app_module_probe(struct platform_device *pdev)
        INIT_LIST_HEAD(&priv.service_list);
        init_completion(&priv.os_load_complete);
        mutex_init(&priv.service_lock_list);
+
+#ifdef CONFIG_DEBUG_FS
+       if (adsp_app_debug_init(drv_data->adsp_debugfs_root))
+               dev_err(&pdev->dev, "unable to create adsp apps debugfs\n");
+#endif
 end:
        return ret;
 }