diff options
Diffstat (limited to 'drivers/s390/block/xpram.c')
| -rw-r--r-- | drivers/s390/block/xpram.c | 56 |
1 files changed, 15 insertions, 41 deletions
diff --git a/drivers/s390/block/xpram.c b/drivers/s390/block/xpram.c index ca7d51f7ecc..a04d9120cef 100644 --- a/drivers/s390/block/xpram.c +++ b/drivers/s390/block/xpram.c @@ -89,28 +89,15 @@ MODULE_LICENSE("GPL"); */ static int xpram_page_in (unsigned long page_addr, unsigned int xpage_index) { - int cc; + int cc = 2; /* return unused cc 2 if pgin traps */ - __asm__ __volatile__ ( - " lhi %0,2\n" /* return unused cc 2 if pgin traps */ - " .insn rre,0xb22e0000,%1,%2\n" /* pgin %1,%2 */ - "0: ipm %0\n" - " srl %0,28\n" + asm volatile( + " .insn rre,0xb22e0000,%1,%2\n" /* pgin %1,%2 */ + "0: ipm %0\n" + " srl %0,28\n" "1:\n" -#ifndef CONFIG_64BIT - ".section __ex_table,\"a\"\n" - " .align 4\n" - " .long 0b,1b\n" - ".previous" -#else - ".section __ex_table,\"a\"\n" - " .align 8\n" - " .quad 0b,1b\n" - ".previous" -#endif - : "=&d" (cc) - : "a" (__pa(page_addr)), "a" (xpage_index) - : "cc" ); + EX_TABLE(0b,1b) + : "+d" (cc) : "a" (__pa(page_addr)), "d" (xpage_index) : "cc"); if (cc == 3) return -ENXIO; if (cc == 2) { @@ -137,28 +124,15 @@ static int xpram_page_in (unsigned long page_addr, unsigned int xpage_index) */ static long xpram_page_out (unsigned long page_addr, unsigned int xpage_index) { - int cc; + int cc = 2; /* return unused cc 2 if pgin traps */ - __asm__ __volatile__ ( - " lhi %0,2\n" /* return unused cc 2 if pgout traps */ - " .insn rre,0xb22f0000,%1,%2\n" /* pgout %1,%2 */ - "0: ipm %0\n" - " srl %0,28\n" + asm volatile( + " .insn rre,0xb22f0000,%1,%2\n" /* pgout %1,%2 */ + "0: ipm %0\n" + " srl %0,28\n" "1:\n" -#ifndef CONFIG_64BIT - ".section __ex_table,\"a\"\n" - " .align 4\n" - " .long 0b,1b\n" - ".previous" -#else - ".section __ex_table,\"a\"\n" - " .align 8\n" - " .quad 0b,1b\n" - ".previous" -#endif - : "=&d" (cc) - : "a" (__pa(page_addr)), "a" (xpage_index) - : "cc" ); + EX_TABLE(0b,1b) + : "+d" (cc) : "a" (__pa(page_addr)), "d" (xpage_index) : "cc"); if (cc == 3) return -ENXIO; if (cc == 2) { @@ -453,7 +427,7 @@ static int __init xpram_init(void) PRINT_WARN("No expanded memory available\n"); return -ENODEV; } - xpram_pages = xpram_highest_page_index(); + xpram_pages = xpram_highest_page_index() + 1; PRINT_INFO(" %u pages expanded memory found (%lu KB).\n", xpram_pages, (unsigned long) xpram_pages*4); rc = xpram_setup_sizes(xpram_pages); |