mirror of https://gitee.com/openkylin/linux.git
[PARISC] Convert sba_iommu.c to use seq_file
Use seq_file interface for proc output in sba_iommu. Also clean up the bus root assignment, and give the proc files a more logical name. Tested on my J6000. Signed-off-by: Kyle McMartin <kyle@parisc-linux.org>
This commit is contained in:
Kyle McMartin
Kyle McMartin
parent
f823bcae2b
commit
7ec14e49b7
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@ -37,6 +37,8 @@
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#include <asm/hardware.h> /* for register_parisc_driver() stuff */
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#include <linux/proc_fs.h>
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#include <linux/seq_file.h>
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#include <asm/runway.h> /* for proc_runway_root */
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#include <asm/pdc.h> /* for PDC_MODEL_* */
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#include <asm/pdcpat.h> /* for is_pdc_pat() */
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@ -1892,46 +1894,43 @@ sba_common_init(struct sba_device *sba_dev)
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}
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#ifdef CONFIG_PROC_FS
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static int sba_proc_info(char *buf, char **start, off_t offset, int len)
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static int sba_proc_info(struct seq_file *m, void *p)
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{
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struct sba_device *sba_dev = sba_list;
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struct ioc *ioc = &sba_dev->ioc[0]; /* FIXME: Multi-IOC support! */
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int total_pages = (int) (ioc->res_size << 3); /* 8 bits per byte */
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unsigned long i;
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#ifdef SBA_COLLECT_STATS
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unsigned long avg = 0, min, max;
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#endif
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int i, len = 0;
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sprintf(buf, "%s rev %d.%d\n",
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len += seq_printf(m, "%s rev %d.%d\n",
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sba_dev->name,
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(sba_dev->hw_rev & 0x7) + 1,
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(sba_dev->hw_rev & 0x18) >> 3
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);
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sprintf(buf, "%sIO PDIR size : %d bytes (%d entries)\n",
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buf,
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len += seq_printf(m, "IO PDIR size : %d bytes (%d entries)\n",
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(int) ((ioc->res_size << 3) * sizeof(u64)), /* 8 bits/byte */
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total_pages);
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sprintf(buf, "%sResource bitmap : %d bytes (%d pages)\n",
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buf, ioc->res_size, ioc->res_size << 3); /* 8 bits per byte */
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len += seq_printf(m, "Resource bitmap : %d bytes (%d pages)\n",
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ioc->res_size, ioc->res_size << 3); /* 8 bits per byte */
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sprintf(buf, "%sLMMIO_BASE/MASK/ROUTE %08x %08x %08x\n",
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buf,
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len += seq_printf(m, "LMMIO_BASE/MASK/ROUTE %08x %08x %08x\n",
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READ_REG32(sba_dev->sba_hpa + LMMIO_DIST_BASE),
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READ_REG32(sba_dev->sba_hpa + LMMIO_DIST_MASK),
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READ_REG32(sba_dev->sba_hpa + LMMIO_DIST_ROUTE)
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);
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for (i=0; i<4; i++)
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sprintf(buf, "%sDIR%ld_BASE/MASK/ROUTE %08x %08x %08x\n",
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buf, i,
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len += seq_printf(m, "DIR%d_BASE/MASK/ROUTE %08x %08x %08x\n", i,
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READ_REG32(sba_dev->sba_hpa + LMMIO_DIRECT0_BASE + i*0x18),
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READ_REG32(sba_dev->sba_hpa + LMMIO_DIRECT0_MASK + i*0x18),
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READ_REG32(sba_dev->sba_hpa + LMMIO_DIRECT0_ROUTE + i*0x18)
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);
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#ifdef SBA_COLLECT_STATS
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sprintf(buf, "%sIO PDIR entries : %ld free %ld used (%d%%)\n", buf,
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len += seq_printf(m, "IO PDIR entries : %ld free %ld used (%d%%)\n",
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total_pages - ioc->used_pages, ioc->used_pages,
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(int) (ioc->used_pages * 100 / total_pages));
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@ -1942,53 +1941,76 @@ static int sba_proc_info(char *buf, char **start, off_t offset, int len)
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if (ioc->avg_search[i] < min) min = ioc->avg_search[i];
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}
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avg /= SBA_SEARCH_SAMPLE;
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sprintf(buf, "%s Bitmap search : %ld/%ld/%ld (min/avg/max CPU Cycles)\n",
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buf, min, avg, max);
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len += seq_printf(m, " Bitmap search : %ld/%ld/%ld (min/avg/max CPU Cycles)\n",
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min, avg, max);
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sprintf(buf, "%spci_map_single(): %12ld calls %12ld pages (avg %d/1000)\n",
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buf, ioc->msingle_calls, ioc->msingle_pages,
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len += seq_printf(m, "pci_map_single(): %12ld calls %12ld pages (avg %d/1000)\n",
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ioc->msingle_calls, ioc->msingle_pages,
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(int) ((ioc->msingle_pages * 1000)/ioc->msingle_calls));
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/* KLUGE - unmap_sg calls unmap_single for each mapped page */
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min = ioc->usingle_calls;
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max = ioc->usingle_pages - ioc->usg_pages;
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sprintf(buf, "%spci_unmap_single: %12ld calls %12ld pages (avg %d/1000)\n",
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buf, min, max,
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(int) ((max * 1000)/min));
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len += seq_printf(m, "pci_unmap_single: %12ld calls %12ld pages (avg %d/1000)\n",
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min, max, (int) ((max * 1000)/min));
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sprintf(buf, "%spci_map_sg() : %12ld calls %12ld pages (avg %d/1000)\n",
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buf, ioc->msg_calls, ioc->msg_pages,
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len += seq_printf(m, "pci_map_sg() : %12ld calls %12ld pages (avg %d/1000)\n",
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ioc->msg_calls, ioc->msg_pages,
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(int) ((ioc->msg_pages * 1000)/ioc->msg_calls));
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sprintf(buf, "%spci_unmap_sg() : %12ld calls %12ld pages (avg %d/1000)\n",
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buf, ioc->usg_calls, ioc->usg_pages,
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len += seq_printf(m, "pci_unmap_sg() : %12ld calls %12ld pages (avg %d/1000)\n",
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ioc->usg_calls, ioc->usg_pages,
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(int) ((ioc->usg_pages * 1000)/ioc->usg_calls));
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#endif
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return strlen(buf);
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return 0;
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}
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#if 0
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/* XXX too much output - exceeds 4k limit and needs to be re-written */
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static int
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sba_resource_map(char *buf, char **start, off_t offset, int len)
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sba_proc_open(struct inode *i, struct file *f)
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{
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return single_open(f, &sba_proc_info, NULL);
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}
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static struct file_operations sba_proc_fops = {
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.owner = THIS_MODULE,
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.open = sba_proc_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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};
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static int
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sba_proc_bitmap_info(struct seq_file *m, void *p)
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{
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struct sba_device *sba_dev = sba_list;
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struct ioc *ioc = &sba_dev->ioc[0]; /* FIXME: Mutli-IOC suppoer! */
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struct ioc *ioc = &sba_dev->ioc[0]; /* FIXME: Multi-IOC support! */
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unsigned int *res_ptr = (unsigned int *)ioc->res_map;
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int i;
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int i, len = 0;
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buf[0] = '\0';
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for(i = 0; i < (ioc->res_size / sizeof(unsigned int)); ++i, ++res_ptr) {
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for (i = 0; i < (ioc->res_size/sizeof(unsigned int)); ++i, ++res_ptr) {
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if ((i & 7) == 0)
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strcat(buf,"\n ");
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sprintf(buf, "%s %08x", buf, *res_ptr);
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len += seq_printf(m, "\n ");
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len += seq_printf(m, " %08x", *res_ptr);
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}
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strcat(buf, "\n");
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len += seq_printf(m, "\n");
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return strlen(buf);
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return 0;
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}
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#endif /* 0 */
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static int
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sba_proc_bitmap_open(struct inode *i, struct file *f)
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{
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return single_open(f, &sba_proc_bitmap_info, NULL);
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}
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static struct file_operations sba_proc_bitmap_fops = {
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.owner = THIS_MODULE,
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.open = sba_proc_bitmap_open,
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.read = seq_read,
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.llseek = seq_lseek,
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.release = single_release,
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};
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#endif /* CONFIG_PROC_FS */
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static struct parisc_device_id sba_tbl[] = {
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@ -2021,6 +2043,7 @@ sba_driver_callback(struct parisc_device *dev)
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int i;
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char *version;
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void __iomem *sba_addr = ioremap(dev->hpa.start, SBA_FUNC_SIZE);
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struct proc_dir_entry *info_entry, *bitmap_entry, *root;
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sba_dump_ranges(sba_addr);
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@ -2088,19 +2111,27 @@ sba_driver_callback(struct parisc_device *dev)
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hppa_dma_ops = &sba_ops;
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#ifdef CONFIG_PROC_FS
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if (IS_ASTRO(&dev->id)) {
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create_proc_info_entry("Astro", 0, proc_runway_root, sba_proc_info);
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} else if (IS_IKE(&dev->id)) {
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create_proc_info_entry("Ike", 0, proc_runway_root, sba_proc_info);
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} else if (IS_PLUTO(&dev->id)) {
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create_proc_info_entry("Pluto", 0, proc_mckinley_root, sba_proc_info);
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} else {
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create_proc_info_entry("Reo", 0, proc_runway_root, sba_proc_info);
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switch (dev->id.hversion) {
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case PLUTO_MCKINLEY_PORT:
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root = proc_mckinley_root;
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break;
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case ASTRO_RUNWAY_PORT:
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case IKE_MERCED_PORT:
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default:
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root = proc_runway_root;
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break;
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}
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#if 0
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create_proc_info_entry("bitmap", 0, proc_runway_root, sba_resource_map);
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#endif
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info_entry = create_proc_entry("sba_iommu", 0, root);
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bitmap_entry = create_proc_entry("sba_iommu-bitmap", 0, root);
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if (info_entry)
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info_entry->proc_fops = &sba_proc_fops;
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if (bitmap_entry)
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bitmap_entry->proc_fops = &sba_proc_bitmap_fops;
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#endif
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parisc_vmerge_boundary = IOVP_SIZE;
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parisc_vmerge_max_size = IOVP_SIZE * BITS_PER_LONG;
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parisc_has_iommu();
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