Re: [PATCH] Introduce BROKEN_ON_64BIT facility

Alan Cox
2006-10-02T14:50:29Z

Ar Llu, 2006-10-02 am 09:52 -0400, ysgrifennodd chas williams -
CONTRACTOR:
> some of the drivers in atm are already marked with !64BIT and some
> need to be marked. this might be more complete for drivers/atm/Kconfig:

This should fix Iphase for one. Some of the others look a lot harder
however

Signed-off-by: Alan Cox <alan@redhat.com>

Binary files linux.vanilla-2.6.18-mm2/drivers/atm/fore200e_mkfirm and linux-2.6.18-mm2/drivers/atm/fore200e_mkfirm differ
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.18-mm2/drivers/atm/iphase.c linux-2.6.18-mm2/drivers/atm/iphase.c
--- linux.vanilla-2.6.18-mm2/drivers/atm/iphase.c 2006-09-20 04:42:06.000000000 +0100
+++ linux-2.6.18-mm2/drivers/atm/iphase.c 2006-10-02 15:28:51.678220488 +0100
@@ -93,10 +93,6 @@

MODULE_LICENSE("GPL");

-#if BITS_PER_LONG != 32
-# error FIXME: this driver only works on 32-bit platforms
-#endif
-
/**************************** IA_LIB **********************************/

static void ia_init_rtn_q (IARTN_Q *que)
@@ -1408,7 +1404,6 @@
struct abr_vc_table *abr_vc_table;
u16 *vc_table;
u16 *reass_table;
- u16 *ptr16;
int i,j, vcsize_sel;
u_short freeq_st_adr;
u_short *freeq_start;
@@ -1423,14 +1418,15 @@
printk(KERN_ERR DEV_LABEL "can't allocate DLEs\n");
goto err_out;
}
- iadev->rx_dle_q.start = (struct dle*)dle_addr;
+ iadev->rx_dle_q.start = (struct dle *)dle_addr;
iadev->rx_dle_q.read = iadev->rx_dle_q.start;
iadev->rx_dle_q.write = iadev->rx_dle_q.start;
- iadev->rx_dle_q.end = (struct dle*)((u32)dle_addr+sizeof(struct dle)*DLE_ENTRIES);
+ iadev->rx_dle_q.end = (struct dle*)((unsigned long)dle_addr+sizeof(struct dle)*DLE_ENTRIES);
/* the end of the dle q points to the entry after the last
DLE that can be used. */

/* write the upper 20 bits of the start address to rx list address register */
+ /* We know this is 32bit bus addressed so the following is safe */
writel(iadev->rx_dle_dma & 0xfffff000,
iadev->dma + IPHASE5575_RX_LIST_ADDR);
IF_INIT(printk("Tx Dle list addr: 0x%08x value: 0x%0x\n",
@@ -1584,11 +1580,12 @@
Set Packet Aging Interval count register to overflow in about 4 us
*/
writew(0xF6F8, iadev->reass_reg+PKT_TM_CNT );
- ptr16 = (u16*)j;
- i = ((u32)ptr16 >> 6) & 0xff;
- ptr16 += j - 1;
- i |=(((u32)ptr16 << 2) & 0xff00);
+
+ i = (j >> 6) & 0xFF;
+ j += 2 * (j - 1);
+ i |= ((j << 2) & 0xFF00);
writew(i, iadev->reass_reg+TMOUT_RANGE);
+
/* initiate the desc_tble */
for(i=0; i<iadev->num_tx_desc;i++)
iadev->desc_tbl[i].timestamp = 0;
@@ -1911,7 +1908,7 @@
iadev->tx_dle_q.start = (struct dle*)dle_addr;
iadev->tx_dle_q.read = iadev->tx_dle_q.start;
iadev->tx_dle_q.write = iadev->tx_dle_q.start;
- iadev->tx_dle_q.end = (struct dle*)((u32)dle_addr+sizeof(struct dle)*DLE_ENTRIES);
+ iadev->tx_dle_q.end = (struct dle*)((unsigned long)dle_addr+sizeof(struct dle)*DLE_ENTRIES);

/* write the upper 20 bits of the start address to tx list address register */
writel(iadev->tx_dle_dma & 0xfffff000,
@@ -2913,7 +2910,7 @@
dev_kfree_skb_any(skb);
return 0;
}
- if ((u32)skb->data & 3) {
+ if ((unsigned long)skb->data & 3) {
printk("Misaligned SKB\n");
if (vcc->pop)
vcc->pop(vcc, skb);