diff options
| -rw-r--r-- | arch/blackfin/mm/sram-alloc.c | 43 |
1 files changed, 26 insertions, 17 deletions
diff --git a/arch/blackfin/mm/sram-alloc.c b/arch/blackfin/mm/sram-alloc.c index dfd304a4a3ea..29d98faa1efd 100644 --- a/arch/blackfin/mm/sram-alloc.c +++ b/arch/blackfin/mm/sram-alloc.c @@ -15,6 +15,7 @@ #include <linux/init.h> #include <linux/poll.h> #include <linux/proc_fs.h> +#include <linux/seq_file.h> #include <linux/spinlock.h> #include <linux/rtc.h> #include <linux/slab.h> @@ -764,7 +765,7 @@ EXPORT_SYMBOL(sram_alloc_with_lsl); /* Need to keep line of output the same. Currently, that is 44 bytes * (including newline). */ -static int _sram_proc_read(char *buf, int *len, int count, const char *desc, +static int _sram_proc_show(struct seq_file *m, const char *desc, struct sram_piece *pfree_head, struct sram_piece *pused_head) { @@ -773,13 +774,13 @@ static int _sram_proc_read(char *buf, int *len, int count, const char *desc, if (!pfree_head || !pused_head) return -1; - *len += sprintf(&buf[*len], "--- SRAM %-14s Size PID State \n", desc); + seq_printf(m, "--- SRAM %-14s Size PID State \n", desc); /* search the relevant memory slot */ pslot = pused_head->next; while (pslot != NULL) { - *len += sprintf(&buf[*len], "%p-%p %10i %5i %-10s\n", + seq_printf(m, "%p-%p %10i %5i %-10s\n", pslot->paddr, pslot->paddr + pslot->size, pslot->size, pslot->pid, "ALLOCATED"); @@ -789,7 +790,7 @@ static int _sram_proc_read(char *buf, int *len, int count, const char *desc, pslot = pfree_head->next; while (pslot != NULL) { - *len += sprintf(&buf[*len], "%p-%p %10i %5i %-10s\n", + seq_printf(m, "%p-%p %10i %5i %-10s\n", pslot->paddr, pslot->paddr + pslot->size, pslot->size, pslot->pid, "FREE"); @@ -798,54 +799,62 @@ static int _sram_proc_read(char *buf, int *len, int count, const char *desc, return 0; } -static int sram_proc_read(char *buf, char **start, off_t offset, int count, - int *eof, void *data) +static int sram_proc_show(struct seq_file *m, void *v) { - int len = 0; unsigned int cpu; for (cpu = 0; cpu < num_possible_cpus(); ++cpu) { - if (_sram_proc_read(buf, &len, count, "Scratchpad", + if (_sram_proc_show(m, "Scratchpad", &per_cpu(free_l1_ssram_head, cpu), &per_cpu(used_l1_ssram_head, cpu))) goto not_done; #if L1_DATA_A_LENGTH != 0 - if (_sram_proc_read(buf, &len, count, "L1 Data A", + if (_sram_proc_show(m, "L1 Data A", &per_cpu(free_l1_data_A_sram_head, cpu), &per_cpu(used_l1_data_A_sram_head, cpu))) goto not_done; #endif #if L1_DATA_B_LENGTH != 0 - if (_sram_proc_read(buf, &len, count, "L1 Data B", + if (_sram_proc_show(m, "L1 Data B", &per_cpu(free_l1_data_B_sram_head, cpu), &per_cpu(used_l1_data_B_sram_head, cpu))) goto not_done; #endif #if L1_CODE_LENGTH != 0 - if (_sram_proc_read(buf, &len, count, "L1 Instruction", + if (_sram_proc_show(m, "L1 Instruction", &per_cpu(free_l1_inst_sram_head, cpu), &per_cpu(used_l1_inst_sram_head, cpu))) goto not_done; #endif } #if L2_LENGTH != 0 - if (_sram_proc_read(buf, &len, count, "L2", &free_l2_sram_head, - &used_l2_sram_head)) + if (_sram_proc_show(m, "L2", &free_l2_sram_head, &used_l2_sram_head)) goto not_done; #endif - *eof = 1; not_done: - return len; + return 0; +} + +static int sram_proc_open(struct inode *inode, struct file *file) +{ + return single_open(file, sram_proc_show, NULL); } +static const struct file_operations sram_proc_ops = { + .open = sram_proc_open, + .read = seq_read, + .llseek = seq_lseek, + .release = single_release, +}; + static int __init sram_proc_init(void) { struct proc_dir_entry *ptr; - ptr = create_proc_entry("sram", S_IFREG | S_IRUGO, NULL); + + ptr = proc_create("sram", S_IRUGO, NULL, &sram_proc_ops); if (!ptr) { printk(KERN_WARNING "unable to create /proc/sram\n"); return -1; } - ptr->read_proc = sram_proc_read; return 0; } late_initcall(sram_proc_init); |