[PATCH 3/3] atyfb: Fix 64 bits resources on 32 bits archs

From: Benjamin Herrenschmidt
Date: Mon Apr 21 2008 - 21:28:48 EST


This fixes atyfb to not truncate 64 bits resources on 32 bits
platforms. Unfortunately, there are still issues with addresses
returned to userspace via struct fb_fix_screeninfo. This will
have to be dealt with separately.

Signed-off-by: Benjamin Herrenschmidt <benh@xxxxxxxxxxxxxxxxxxx>
---

drivers/video/aty/atyfb_base.c | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)

--- linux-work.orig/drivers/video/aty/atyfb_base.c 2008-04-22 11:21:46.000000000 +1000
+++ linux-work/drivers/video/aty/atyfb_base.c 2008-04-22 11:23:58.000000000 +1000
@@ -2842,7 +2842,7 @@ static int atyfb_setcolreg(u_int regno,
#ifdef __sparc__

static int __devinit atyfb_setup_sparc(struct pci_dev *pdev,
- struct fb_info *info, unsigned long addr)
+ struct fb_info *info, resource_size_t addr)
{
struct atyfb_par *par = info->par;
struct device_node *dp;
@@ -3334,11 +3334,11 @@ static int __devinit init_from_bios(stru
}
#endif /* __i386__ */

-static int __devinit atyfb_setup_generic(struct pci_dev *pdev, struct fb_info *info, unsigned long addr)
+static int __devinit atyfb_setup_generic(struct pci_dev *pdev, struct fb_info *info, resource_size_t addr)
{
struct atyfb_par *par = info->par;
u16 tmp;
- unsigned long raddr;
+ resource_size_t raddr;
struct resource *rrp;
int ret = 0;

@@ -3351,8 +3351,8 @@ static int __devinit atyfb_setup_generic
PRINTKI("using auxiliary register aperture\n");
}

- info->fix.mmio_start = raddr;
- par->ati_regbase = ioremap(info->fix.mmio_start, 0x1000);
+ info->fix.mmio_start = (unsigned long)raddr;
+ par->ati_regbase = ioremap(raddr, 0x1000);
if (par->ati_regbase == 0)
return -ENOMEM;

@@ -3374,7 +3374,7 @@ static int __devinit atyfb_setup_generic
#endif

/* Map in frame buffer */
- info->fix.smem_start = addr;
+ info->fix.smem_start = (unsigned long)addr;
info->screen_base = ioremap(addr, 0x800000);
if (info->screen_base == NULL) {
ret = -ENOMEM;
@@ -3411,7 +3411,7 @@ atyfb_setup_generic_fail:

static int __devinit atyfb_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
{
- unsigned long addr, res_start, res_size;
+ resource_size_t addr, res_start, res_size;
struct fb_info *info;
struct resource *rp;
struct atyfb_par *par;
--
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