#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>
+#include <linux/scatterlist.h>
#include <asm/cacheflush.h>
#include <asm/dma.h> /* for DMA_CHUNK_SIZE */
#include <asm/uaccess.h>
#include <asm/tlbflush.h> /* for purge_tlb_*() macros */
-static struct proc_dir_entry * proc_gsc_root = NULL;
-static int pcxl_proc_info(char *buffer, char **start, off_t offset, int length);
-static unsigned long pcxl_used_bytes = 0;
-static unsigned long pcxl_used_pages = 0;
+static struct proc_dir_entry * proc_gsc_root __read_mostly = NULL;
+static unsigned long pcxl_used_bytes __read_mostly = 0;
+static unsigned long pcxl_used_pages __read_mostly = 0;
extern unsigned long pcxl_dma_start; /* Start of pcxl dma mapping area */
static spinlock_t pcxl_res_lock;
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)
{
pcxl_res_map = (char *)__get_free_pages(GFP_KERNEL,
get_order(pcxl_res_size));
memset(pcxl_res_map, 0, pcxl_res_size);
- proc_gsc_root = proc_mkdir("gsc", 0);
+ proc_gsc_root = proc_mkdir("gsc", NULL);
if (!proc_gsc_root)
printk(KERN_WARNING
"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");
}
static void *pa11_dma_alloc_noncoherent(struct device *dev, size_t size,
dma_addr_t *dma_handle, gfp_t flag)
{
- void *addr = NULL;
+ void *addr;
- /* rely on kmalloc to be cacheline aligned */
- addr = kmalloc(size, flag);
- if(addr)
+ addr = (void *)__get_free_pages(flag, get_order(size));
+ if (addr)
*dma_handle = (dma_addr_t)virt_to_phys(addr);
return addr;
static void pa11_dma_free_noncoherent(struct device *dev, size_t size,
void *vaddr, dma_addr_t iova)
{
- kfree(vaddr);
+ free_pages((unsigned long)vaddr, get_order(size));
return;
}
.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);
-}
-
git.openpandora.org / pandora-kernel.git / blobdiff