Convert AGP alpha driver from nopage to fault.
NULL is NOPAGE_SIGBUS, so we aren't changing behaviour there.
Signed-off-by: Nick Piggin <[email protected]>
Cc: [email protected]
Cc: [email protected]
Cc: [email protected]
---
drivers/char/agp/alpha-agp.c | 17 ++++++++---------
1 file changed, 8 insertions(+), 9 deletions(-)
Index: linux-2.6/drivers/char/agp/alpha-agp.c
===================================================================
--- linux-2.6.orig/drivers/char/agp/alpha-agp.c
+++ linux-2.6/drivers/char/agp/alpha-agp.c
@@ -11,29 +11,28 @@
#include "agp.h"
-static struct page *alpha_core_agp_vm_nopage(struct vm_area_struct *vma,
- unsigned long address,
- int *type)
+static int alpha_core_agp_vm_fault(struct vm_area_struct *vma,
+ struct vm_fault *vmf)
{
alpha_agp_info *agp = agp_bridge->dev_private_data;
dma_addr_t dma_addr;
unsigned long pa;
struct page *page;
- dma_addr = address - vma->vm_start + agp->aperture.bus_base;
+ dma_addr = (unsigned long)vmf->virtual_address - vma->vm_start
+ + agp->aperture.bus_base;
pa = agp->ops->translate(agp, dma_addr);
if (pa == (unsigned long)-EINVAL)
- return NULL; /* no translation */
+ return VM_FAULT_SIGBUS; /* no translation */
/*
* Get the page, inc the use count, and return it
*/
page = virt_to_page(__va(pa));
get_page(page);
- if (type)
- *type = VM_FAULT_MINOR;
- return page;
+ vmf->page = page;
+ return 0;
}
static struct aper_size_info_fixed alpha_core_agp_sizes[] =
@@ -42,7 +41,7 @@ static struct aper_size_info_fixed alpha
};
struct vm_operations_struct alpha_core_agp_vm_ops = {
- .nopage = alpha_core_agp_vm_nopage,
+ .fault = alpha_core_agp_vm_fault,
};
--
--
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