parisc: convert /proc/gsc/pcxl_dma to seq_file (27f282b9) · Commits · 戴 / test

arch/parisc/kernel/pci-dma.c

+53 −41

Original line number	Diff line number	Diff line
		@@ -21,6 +21,7 @@
		#include <linux/mm.h>
		#include <linux/pci.h>
		#include <linux/proc_fs.h>
		#include <linux/seq_file.h>
		#include <linux/slab.h>
		#include <linux/string.h>
		#include <linux/types.h>
		@@ -34,7 +35,6 @@
		#include <asm/tlbflush.h> /* for purge_tlb_() macros /

		static struct proc_dir_entry * proc_gsc_root __read_mostly = NULL;
		static int pcxl_proc_info(char buffer, char *start, off_t offset, int length);
		static unsigned long pcxl_used_bytes __read_mostly = 0;
		static unsigned long pcxl_used_pages __read_mostly = 0;

		@@ -330,6 +330,54 @@ pcxl_free_range(unsigned long vaddr, size_t size)
		dump_resmap();
		}

		static int proc_pcxl_dma_show(struct seq_file m, void v)
		{
		#if 0
		u_long i = 0;
		unsigned long res_ptr = (u_long )pcxl_res_map;
		#endif
		unsigned long total_pages = pcxl_res_size << 3; /* 8 bits per byte */

		seq_printf(m, "\nDMA Mapping Area size : %d bytes (%ld pages)\n",
		PCXL_DMA_MAP_SIZE, total_pages);

		seq_printf(m, "Resource bitmap : %d bytes\n", pcxl_res_size);

		seq_puts(m, " total: free: used: % used:\n");
		seq_printf(m, "blocks %8d %8ld %8ld %8ld%%\n", pcxl_res_size,
		pcxl_res_size - pcxl_used_bytes, pcxl_used_bytes,
		(pcxl_used_bytes * 100) / pcxl_res_size);

		seq_printf(m, "pages %8ld %8ld %8ld %8ld%%\n", total_pages,
		total_pages - pcxl_used_pages, pcxl_used_pages,
		(pcxl_used_pages * 100 / total_pages));

		#if 0
		seq_puts(m, "\nResource bitmap:");

		for(; i < (pcxl_res_size / sizeof(u_long)); ++i, ++res_ptr) {
		if ((i & 7) == 0)
		seq_puts(m,"\n ");
		seq_printf(m, "%s %08lx", buf, *res_ptr);
		}
		#endif
		seq_putc(m, '\n');
		return 0;
		}

		static int proc_pcxl_dma_open(struct inode inode, struct file file)
		{
		return single_open(file, proc_pcxl_dma_show, NULL);
		}

		static const struct file_operations proc_pcxl_dma_ops = {
		.owner = THIS_MODULE,
		.open = proc_pcxl_dma_open,
		.read = seq_read,
		.llseek = seq_lseek,
		.release = single_release,
		};

		static int __init
		pcxl_dma_init(void)
		{
		@@ -348,9 +396,10 @@ pcxl_dma_init(void)
		"pcxl_dma_init: Unable to create gsc /proc dir entry\n");
		else {
		struct proc_dir_entry* ent;
		ent = create_proc_info_entry("pcxl_dma", 0,
		proc_gsc_root, pcxl_proc_info);
		if (!ent)
		ent = create_proc_entry("pcxl_dma", 0, proc_gsc_root);
		if (ent)
		ent->proc_fops = &proc_pcxl_dma_ops;
		else
		printk(KERN_WARNING
		"pci-dma.c: Unable to create pcxl_dma /proc entry.\n");
		}
		@@ -551,40 +600,3 @@ struct hppa_dma_ops pcx_dma_ops = {
		.dma_sync_sg_for_cpu = pa11_dma_sync_sg_for_cpu,
		.dma_sync_sg_for_device = pa11_dma_sync_sg_for_device,
		};


		static int pcxl_proc_info(char buf, char *start, off_t offset, int len)
		{
		#if 0
		u_long i = 0;
		unsigned long res_ptr = (u_long )pcxl_res_map;
		#endif
		unsigned long total_pages = pcxl_res_size << 3; /* 8 bits per byte */

		sprintf(buf, "\nDMA Mapping Area size : %d bytes (%ld pages)\n",
		PCXL_DMA_MAP_SIZE, total_pages);

		sprintf(buf, "%sResource bitmap : %d bytes\n", buf, pcxl_res_size);

		strcat(buf, " total: free: used: % used:\n");
		sprintf(buf, "%sblocks %8d %8ld %8ld %8ld%%\n", buf, pcxl_res_size,
		pcxl_res_size - pcxl_used_bytes, pcxl_used_bytes,
		(pcxl_used_bytes * 100) / pcxl_res_size);

		sprintf(buf, "%spages %8ld %8ld %8ld %8ld%%\n", buf, total_pages,
		total_pages - pcxl_used_pages, pcxl_used_pages,
		(pcxl_used_pages * 100 / total_pages));

		#if 0
		strcat(buf, "\nResource bitmap:");

		for(; i < (pcxl_res_size / sizeof(u_long)); ++i, ++res_ptr) {
		if ((i & 7) == 0)
		strcat(buf,"\n ");
		sprintf(buf, "%s %08lx", buf, *res_ptr);
		}
		#endif
		strcat(buf, "\n");
		return strlen(buf);
		}

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