diff options
Diffstat (limited to 'drivers/gpu/arm/midgard/mali_kbase_jd_debugfs.c')
| -rwxr-xr-x | drivers/gpu/arm/midgard/mali_kbase_jd_debugfs.c | 123 |
1 files changed, 123 insertions, 0 deletions
diff --git a/drivers/gpu/arm/midgard/mali_kbase_jd_debugfs.c b/drivers/gpu/arm/midgard/mali_kbase_jd_debugfs.c new file mode 100755 index 000000000000..0cf75f59c282 --- /dev/null +++ b/drivers/gpu/arm/midgard/mali_kbase_jd_debugfs.c @@ -0,0 +1,123 @@ +/* + * + * (C) COPYRIGHT 2014-2015 ARM Limited. All rights reserved. + * + * This program is free software and is provided to you under the terms of the + * GNU General Public License version 2 as published by the Free Software + * Foundation, and any use by you of this program is subject to the terms + * of such GNU licence. + * + * A copy of the licence is included with the program, and can also be obtained + * from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, + * Boston, MA 02110-1301, USA. + * + */ + + + +#include <linux/seq_file.h> + +#include <mali_kbase.h> + +#include <mali_kbase_jd_debugfs.h> + +#ifdef CONFIG_DEBUG_FS + +/** + * kbasep_jd_debugfs_atoms_show - Show callback for the JD atoms debugfs file. + * @sfile: The debugfs entry + * @data: Data associated with the entry + * + * This function is called to get the contents of the JD atoms debugfs file. + * This is a report of all atoms managed by kbase_jd_context.atoms + * + * Return: 0 if successfully prints data in debugfs entry file, failure + * otherwise + */ +static int kbasep_jd_debugfs_atoms_show(struct seq_file *sfile, void *data) +{ + struct kbase_context *kctx = sfile->private; + struct kbase_jd_atom *atoms; + unsigned long irq_flags; + int i; + + KBASE_DEBUG_ASSERT(kctx != NULL); + + /* Print version */ + seq_printf(sfile, "v%u\n", MALI_JD_DEBUGFS_VERSION); + + /* Print U/K API version */ + seq_printf(sfile, "ukv%u.%u\n", BASE_UK_VERSION_MAJOR, + BASE_UK_VERSION_MINOR); + + /* Print table heading */ + seq_puts(sfile, "atom id,core reqs,status,coreref status,predeps,start time,time on gpu\n"); + + atoms = kctx->jctx.atoms; + /* General atom states */ + mutex_lock(&kctx->jctx.lock); + /* JS-related states */ + spin_lock_irqsave(&kctx->kbdev->js_data.runpool_irq.lock, irq_flags); + for (i = 0; i != BASE_JD_ATOM_COUNT; ++i) { + struct kbase_jd_atom *atom = &atoms[i]; + s64 start_timestamp = 0; + + if (atom->status == KBASE_JD_ATOM_STATE_UNUSED) + continue; + + /* start_timestamp is cleared as soon as the atom leaves UNUSED state + * and set before a job is submitted to the h/w, a non-zero value means + * it is valid */ + if (ktime_to_ns(atom->start_timestamp)) + start_timestamp = ktime_to_ns( + ktime_sub(ktime_get(), atom->start_timestamp)); + + seq_printf(sfile, + "%i,%u,%u,%u,%u %u,%lli,%llu\n", + i, atom->core_req, atom->status, atom->coreref_state, + (unsigned)(atom->dep[0].atom ? + atom->dep[0].atom - atoms : 0), + (unsigned)(atom->dep[1].atom ? + atom->dep[1].atom - atoms : 0), + (signed long long)start_timestamp, + (unsigned long long)(atom->time_spent_us ? + atom->time_spent_us * 1000 : start_timestamp) + ); + } + spin_unlock_irqrestore(&kctx->kbdev->js_data.runpool_irq.lock, irq_flags); + mutex_unlock(&kctx->jctx.lock); + + return 0; +} + + +/** + * kbasep_jd_debugfs_atoms_open - open operation for atom debugfs file + * @in: &struct inode pointer + * @file: &struct file pointer + * + * Return: file descriptor + */ +static int kbasep_jd_debugfs_atoms_open(struct inode *in, struct file *file) +{ + return single_open(file, kbasep_jd_debugfs_atoms_show, in->i_private); +} + +static const struct file_operations kbasep_jd_debugfs_atoms_fops = { + .open = kbasep_jd_debugfs_atoms_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + +void kbasep_jd_debugfs_ctx_add(struct kbase_context *kctx) +{ + KBASE_DEBUG_ASSERT(kctx != NULL); + + /* Expose all atoms */ + debugfs_create_file("atoms", S_IRUGO, kctx->kctx_dentry, kctx, + &kbasep_jd_debugfs_atoms_fops); + +} + +#endif /* CONFIG_DEBUG_FS */ |