diff options
| -rw-r--r-- | drivers/gpu/drm/xe/xe_gt_sriov_pf_migration.c | 21 | ||||
| -rw-r--r-- | drivers/gpu/drm/xe/xe_gt_sriov_pf_migration.h | 2 | ||||
| -rw-r--r-- | drivers/gpu/drm/xe/xe_sriov_pf_debugfs.c | 28 | ||||
| -rw-r--r-- | drivers/gpu/drm/xe/xe_sriov_pf_migration.c | 30 | ||||
| -rw-r--r-- | drivers/gpu/drm/xe/xe_sriov_pf_migration.h | 1 |
5 files changed, 82 insertions, 0 deletions
diff --git a/drivers/gpu/drm/xe/xe_gt_sriov_pf_migration.c b/drivers/gpu/drm/xe/xe_gt_sriov_pf_migration.c index 4e49022810ea..0ffe64ee469f 100644 --- a/drivers/gpu/drm/xe/xe_gt_sriov_pf_migration.c +++ b/drivers/gpu/drm/xe/xe_gt_sriov_pf_migration.c @@ -397,6 +397,27 @@ ssize_t xe_gt_sriov_pf_migration_write_guc_state(struct xe_gt *gt, unsigned int #endif /* CONFIG_DEBUG_FS */ /** + * xe_gt_sriov_pf_migration_size() - Total size of migration data from all components within a GT. + * @gt: the &xe_gt + * @vfid: the VF identifier (can't be 0) + * + * This function is for PF only. + * + * Return: total migration data size in bytes or a negative error code on failure. + */ +ssize_t xe_gt_sriov_pf_migration_size(struct xe_gt *gt, unsigned int vfid) +{ + ssize_t total = 0; + + xe_gt_assert(gt, IS_SRIOV_PF(gt_to_xe(gt))); + xe_gt_assert(gt, vfid != PFID); + xe_gt_assert(gt, vfid <= xe_sriov_pf_get_totalvfs(gt_to_xe(gt))); + + /* Nothing to query yet - will be updated once per-GT migration data types are added */ + return total; +} + +/** * xe_gt_sriov_pf_migration_ring_empty() - Check if a migration ring is empty. * @gt: the &xe_gt * @vfid: the VF identifier diff --git a/drivers/gpu/drm/xe/xe_gt_sriov_pf_migration.h b/drivers/gpu/drm/xe/xe_gt_sriov_pf_migration.h index b4c7b5dc9e91..3ad3c3609b41 100644 --- a/drivers/gpu/drm/xe/xe_gt_sriov_pf_migration.h +++ b/drivers/gpu/drm/xe/xe_gt_sriov_pf_migration.h @@ -15,6 +15,8 @@ int xe_gt_sriov_pf_migration_init(struct xe_gt *gt); int xe_gt_sriov_pf_migration_save_guc_state(struct xe_gt *gt, unsigned int vfid); int xe_gt_sriov_pf_migration_restore_guc_state(struct xe_gt *gt, unsigned int vfid); +ssize_t xe_gt_sriov_pf_migration_size(struct xe_gt *gt, unsigned int vfid); + bool xe_gt_sriov_pf_migration_ring_empty(struct xe_gt *gt, unsigned int vfid); bool xe_gt_sriov_pf_migration_ring_full(struct xe_gt *gt, unsigned int vfid); void xe_gt_sriov_pf_migration_ring_free(struct xe_gt *gt, unsigned int vfid); diff --git a/drivers/gpu/drm/xe/xe_sriov_pf_debugfs.c b/drivers/gpu/drm/xe/xe_sriov_pf_debugfs.c index 5e5ffafc61a4..bad751217e1e 100644 --- a/drivers/gpu/drm/xe/xe_sriov_pf_debugfs.c +++ b/drivers/gpu/drm/xe/xe_sriov_pf_debugfs.c @@ -284,6 +284,33 @@ static const struct file_operations data_vf_fops = { .llseek = default_llseek, }; +static ssize_t size_read(struct file *file, char __user *ubuf, size_t count, loff_t *ppos) +{ + struct dentry *dent = file_dentry(file)->d_parent; + struct xe_device *xe = extract_xe(dent); + unsigned int vfid = extract_vfid(dent); + char buf[21]; + ssize_t ret; + int len; + + xe_pm_runtime_get(xe); + ret = xe_sriov_pf_migration_size(xe, vfid); + xe_pm_runtime_put(xe); + if (ret < 0) + return ret; + + len = scnprintf(buf, sizeof(buf), "%zd\n", ret); + + return simple_read_from_buffer(ubuf, count, ppos, buf, len); +} + +static const struct file_operations size_vf_fops = { + .owner = THIS_MODULE, + .open = simple_open, + .read = size_read, + .llseek = default_llseek, +}; + static void pf_populate_vf(struct xe_device *xe, struct dentry *vfdent) { debugfs_create_file("pause", 0200, vfdent, xe, &pause_vf_fops); @@ -293,6 +320,7 @@ static void pf_populate_vf(struct xe_device *xe, struct dentry *vfdent) debugfs_create_file("save", 0600, vfdent, xe, &save_vf_fops); debugfs_create_file("restore", 0600, vfdent, xe, &restore_vf_fops); debugfs_create_file("migration_data", 0600, vfdent, xe, &data_vf_fops); + debugfs_create_file("migration_size", 0400, vfdent, xe, &size_vf_fops); } static void pf_populate_with_tiles(struct xe_device *xe, struct dentry *dent, unsigned int vfid) diff --git a/drivers/gpu/drm/xe/xe_sriov_pf_migration.c b/drivers/gpu/drm/xe/xe_sriov_pf_migration.c index bbaf0caed057..21b06ce6830a 100644 --- a/drivers/gpu/drm/xe/xe_sriov_pf_migration.c +++ b/drivers/gpu/drm/xe/xe_sriov_pf_migration.c @@ -310,3 +310,33 @@ ssize_t xe_sriov_pf_migration_write(struct xe_device *xe, unsigned int vfid, return produced; } + +/** + * xe_sriov_pf_migration_size() - Total size of migration data from all components within a device + * @xe: the &xe_device + * @vfid: the VF identifier (can't be 0) + * + * This function is for PF only. + * + * Return: total migration data size in bytes or a negative error code on failure. + */ +ssize_t xe_sriov_pf_migration_size(struct xe_device *xe, unsigned int vfid) +{ + size_t size = 0; + struct xe_gt *gt; + ssize_t ret; + u8 gt_id; + + xe_assert(xe, IS_SRIOV_PF(xe)); + xe_assert(xe, vfid); + + for_each_gt(gt, xe, gt_id) { + ret = xe_gt_sriov_pf_migration_size(gt, vfid); + if (ret < 0) + return ret; + + size += ret; + } + + return size; +} diff --git a/drivers/gpu/drm/xe/xe_sriov_pf_migration.h b/drivers/gpu/drm/xe/xe_sriov_pf_migration.h index dbf8094900df..b806298a0bb6 100644 --- a/drivers/gpu/drm/xe/xe_sriov_pf_migration.h +++ b/drivers/gpu/drm/xe/xe_sriov_pf_migration.h @@ -18,6 +18,7 @@ int xe_sriov_pf_migration_restore_produce(struct xe_device *xe, unsigned int vfi struct xe_sriov_packet *data); struct xe_sriov_packet * xe_sriov_pf_migration_save_consume(struct xe_device *xe, unsigned int vfid); +ssize_t xe_sriov_pf_migration_size(struct xe_device *xe, unsigned int vfid); wait_queue_head_t *xe_sriov_pf_migration_waitqueue(struct xe_device *xe, unsigned int vfid); ssize_t xe_sriov_pf_migration_read(struct xe_device *xe, unsigned int vfid, |