powerpc/spufs: add sizes for context files

Populate the size member of a few context files. Leave out files that
have different semantics with read vs mmap, or contain a
variable-length hex string.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>

arch/powerpc/platforms/cell/spufs/file.c

@@ -2609,20 +2609,20 @@ static const struct file_operations spufs_ctx_fops = {
 
 struct spufs_tree_descr spufs_dir_contents[] = {
 	{ "capabilities", &spufs_caps_fops, 0444, },
-	{ "mem",  &spufs_mem_fops,  0666, },
-	{ "regs", &spufs_regs_fops,  0666, },
+	{ "mem",  &spufs_mem_fops,  0666, LS_SIZE, },
+	{ "regs", &spufs_regs_fops,  0666, sizeof(struct spu_reg128[128]), },
 	{ "mbox", &spufs_mbox_fops, 0444, },
 	{ "ibox", &spufs_ibox_fops, 0444, },
 	{ "wbox", &spufs_wbox_fops, 0222, },
-	{ "mbox_stat", &spufs_mbox_stat_fops, 0444, },
-	{ "ibox_stat", &spufs_ibox_stat_fops, 0444, },
-	{ "wbox_stat", &spufs_wbox_stat_fops, 0444, },
+	{ "mbox_stat", &spufs_mbox_stat_fops, 0444, sizeof(u32), },
+	{ "ibox_stat", &spufs_ibox_stat_fops, 0444, sizeof(u32), },
+	{ "wbox_stat", &spufs_wbox_stat_fops, 0444, sizeof(u32), },
 	{ "signal1", &spufs_signal1_fops, 0666, },
 	{ "signal2", &spufs_signal2_fops, 0666, },
 	{ "signal1_type", &spufs_signal1_type, 0666, },
 	{ "signal2_type", &spufs_signal2_type, 0666, },
 	{ "cntl", &spufs_cntl_fops,  0666, },
-	{ "fpcr", &spufs_fpcr_fops, 0666, },
+	{ "fpcr", &spufs_fpcr_fops, 0666, sizeof(struct spu_reg128), },
 	{ "lslr", &spufs_lslr_ops, 0444, },
 	{ "mfc", &spufs_mfc_fops, 0666, },
 	{ "mss", &spufs_mss_fops, 0666, },
@@ -2632,14 +2632,16 @@ struct spufs_tree_descr spufs_dir_contents[] = {
 	{ "decr_status", &spufs_decr_status_ops, 0666, },
 	{ "event_mask", &spufs_event_mask_ops, 0666, },
 	{ "event_status", &spufs_event_status_ops, 0444, },
-	{ "psmap", &spufs_psmap_fops, 0666, },
+	{ "psmap", &spufs_psmap_fops, 0666, SPUFS_PS_MAP_SIZE, },
 	{ "phys-id", &spufs_id_ops, 0666, },
 	{ "object-id", &spufs_object_id_ops, 0666, },
-	{ "mbox_info", &spufs_mbox_info_fops, 0444, },
-	{ "ibox_info", &spufs_ibox_info_fops, 0444, },
-	{ "wbox_info", &spufs_wbox_info_fops, 0444, },
-	{ "dma_info", &spufs_dma_info_fops, 0444, },
-	{ "proxydma_info", &spufs_proxydma_info_fops, 0444, },
+	{ "mbox_info", &spufs_mbox_info_fops, 0444, sizeof(u32), },
+	{ "ibox_info", &spufs_ibox_info_fops, 0444, sizeof(u32), },
+	{ "wbox_info", &spufs_wbox_info_fops, 0444, sizeof(u32), },
+	{ "dma_info", &spufs_dma_info_fops, 0444,
+		sizeof(struct spu_dma_info), },
+	{ "proxydma_info", &spufs_proxydma_info_fops, 0444,
+		sizeof(struct spu_proxydma_info)},
 	{ "tid", &spufs_tid_fops, 0444, },
 	{ "stat", &spufs_stat_fops, 0444, },
 	{ "switch_log", &spufs_switch_log_fops, 0444 },
@@ -2649,13 +2651,13 @@ struct spufs_tree_descr spufs_dir_contents[] = {
 
 struct spufs_tree_descr spufs_dir_nosched_contents[] = {
 	{ "capabilities", &spufs_caps_fops, 0444, },
-	{ "mem",  &spufs_mem_fops,  0666, },
+	{ "mem",  &spufs_mem_fops,  0666, LS_SIZE, },
 	{ "mbox", &spufs_mbox_fops, 0444, },
 	{ "ibox", &spufs_ibox_fops, 0444, },
 	{ "wbox", &spufs_wbox_fops, 0222, },
-	{ "mbox_stat", &spufs_mbox_stat_fops, 0444, },
-	{ "ibox_stat", &spufs_ibox_stat_fops, 0444, },
-	{ "wbox_stat", &spufs_wbox_stat_fops, 0444, },
+	{ "mbox_stat", &spufs_mbox_stat_fops, 0444, sizeof(u32), },
+	{ "ibox_stat", &spufs_ibox_stat_fops, 0444, sizeof(u32), },
+	{ "wbox_stat", &spufs_wbox_stat_fops, 0444, sizeof(u32), },
 	{ "signal1", &spufs_signal1_nosched_fops, 0222, },
 	{ "signal2", &spufs_signal2_nosched_fops, 0222, },
 	{ "signal1_type", &spufs_signal1_type, 0666, },
@@ -2664,7 +2666,7 @@ struct spufs_tree_descr spufs_dir_nosched_contents[] = {
 	{ "mfc", &spufs_mfc_fops, 0666, },
 	{ "cntl", &spufs_cntl_fops,  0666, },
 	{ "npc", &spufs_npc_ops, 0666, },
-	{ "psmap", &spufs_psmap_fops, 0666, },
+	{ "psmap", &spufs_psmap_fops, 0666, SPUFS_PS_MAP_SIZE, },
 	{ "phys-id", &spufs_id_ops, 0666, },
 	{ "object-id", &spufs_object_id_ops, 0666, },
 	{ "tid", &spufs_tid_fops, 0444, },