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Commit 6cc03ee7 authored by Dave Airlie's avatar Dave Airlie
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From Michel Daenzer: 

Adapt to nopage() prototype change in Linux 2.6.1.

Reviewed by: Arjan van de Ven <arjanv@redhat.com>, additional feedback
from William Lee Irwin III and Linus Torvalds.
parent 8f547eb8
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Showing with 97 additions and 63 deletions
drivers/char/drm/drmP.h
View file @ 6cc03ee7
......@@ -772,18 +772,6 @@ extern int DRM(flush)(struct file *filp);
extern int DRM(fasync)(int fd, struct file *filp, int on);
/* Mapping support (drm_vm.h) */
extern struct page *DRM(vm_nopage)(struct vm_area_struct *vma,
unsigned long address,
int *type);
extern struct page *DRM(vm_shm_nopage)(struct vm_area_struct *vma,
unsigned long address,
int *type);
extern struct page *DRM(vm_dma_nopage)(struct vm_area_struct *vma,
unsigned long address,
int *type);
extern struct page *DRM(vm_sg_nopage)(struct vm_area_struct *vma,
unsigned long address,
int *type);
extern void DRM(vm_open)(struct vm_area_struct *vma);
extern void DRM(vm_close)(struct vm_area_struct *vma);
extern void DRM(vm_shm_close)(struct vm_area_struct *vma);
......
drivers/char/drm/drm_vm.h
View file @ 6cc03ee7
......@@ -35,48 +35,19 @@
#include "drmP.h"
/** AGP virtual memory operations */
struct vm_operations_struct DRM(vm_ops) = {
.nopage = DRM(vm_nopage),
.open = DRM(vm_open),
.close = DRM(vm_close),
};
/** Shared virtual memory operations */
struct vm_operations_struct DRM(vm_shm_ops) = {
.nopage = DRM(vm_shm_nopage),
.open = DRM(vm_open),
.close = DRM(vm_shm_close),
};
/** DMA virtual memory operations */
struct vm_operations_struct DRM(vm_dma_ops) = {
.nopage = DRM(vm_dma_nopage),
.open = DRM(vm_open),
.close = DRM(vm_close),
};
/** Scatter-gather virtual memory operations */
struct vm_operations_struct DRM(vm_sg_ops) = {
.nopage = DRM(vm_sg_nopage),
.open = DRM(vm_open),
.close = DRM(vm_close),
};
/**
* \c nopage method for AGP virtual memory.
*
* \param vma virtual memory area.
* \param address access address.
* \param write_access sharing.
* \return pointer to the page structure.
*
* Find the right map and if it's AGP memory find the real physical page to
* map, get the page, increment the use count and return it.
*/
struct page *DRM(vm_nopage)(struct vm_area_struct *vma,
unsigned long address,
int *type)
static __inline__ struct page *DRM(do_vm_nopage)(struct vm_area_struct *vma,
unsigned long address)
{
#if __REALLY_HAVE_AGP
drm_file_t *priv = vma->vm_file->private_data;
......@@ -133,8 +104,6 @@ struct page *DRM(vm_nopage)(struct vm_area_struct *vma,
baddr, __va(agpmem->memory->memory[offset]), offset,
atomic_read(&page->count));
if (type)
*type = VM_FAULT_MINOR;
return page;
}
vm_nopage_error:
......@@ -148,15 +117,13 @@ struct page *DRM(vm_nopage)(struct vm_area_struct *vma,
*
* \param vma virtual memory area.
* \param address access address.
* \param write_access sharing.
* \return pointer to the page structure.
*
* Get the the mapping, find the real physical page to map, get the page, and
* return it.
*/
struct page *DRM(vm_shm_nopage)(struct vm_area_struct *vma,
unsigned long address,
int *type)
static __inline__ struct page *DRM(do_vm_shm_nopage)(struct vm_area_struct *vma,
unsigned long address)
{
drm_map_t *map = (drm_map_t *)vma->vm_private_data;
unsigned long offset;
......@@ -172,8 +139,6 @@ struct page *DRM(vm_shm_nopage)(struct vm_area_struct *vma,
if (!page)
return NOPAGE_OOM;
get_page(page);
if (type)
*type = VM_FAULT_MINOR;
DRM_DEBUG("shm_nopage 0x%lx\n", address);
return page;
......@@ -265,14 +230,12 @@ void DRM(vm_shm_close)(struct vm_area_struct *vma)
*
* \param vma virtual memory area.
* \param address access address.
* \param write_access sharing.
* \return pointer to the page structure.
*
* Determine the page number from the page offset and get it from drm_device_dma::pagelist.
*/
struct page *DRM(vm_dma_nopage)(struct vm_area_struct *vma,
unsigned long address,
int *type)
static __inline__ struct page *DRM(do_vm_dma_nopage)(struct vm_area_struct *vma,
unsigned long address)
{
drm_file_t *priv = vma->vm_file->private_data;
drm_device_t *dev = priv->dev;
......@@ -291,8 +254,6 @@ struct page *DRM(vm_dma_nopage)(struct vm_area_struct *vma,
(offset & (~PAGE_MASK))));
get_page(page);
if (type)
*type = VM_FAULT_MINOR;
DRM_DEBUG("dma_nopage 0x%lx (page %lu)\n", address, page_nr);
return page;
......@@ -303,14 +264,12 @@ struct page *DRM(vm_dma_nopage)(struct vm_area_struct *vma,
*
* \param vma virtual memory area.
* \param address access address.
* \param write_access sharing.
* \return pointer to the page structure.
*
* Determine the map offset from the page offset and get it from drm_sg_mem::pagelist.
*/
struct page *DRM(vm_sg_nopage)(struct vm_area_struct *vma,
unsigned long address,
int *type)
static __inline__ struct page *DRM(do_vm_sg_nopage)(struct vm_area_struct *vma,
unsigned long address)
{
drm_map_t *map = (drm_map_t *)vma->vm_private_data;
drm_file_t *priv = vma->vm_file->private_data;
......@@ -331,12 +290,99 @@ struct page *DRM(vm_sg_nopage)(struct vm_area_struct *vma,
page_offset = (offset >> PAGE_SHIFT) + (map_offset >> PAGE_SHIFT);
page = entry->pagelist[page_offset];
get_page(page);
if (type)
*type = VM_FAULT_MINOR;
return page;
}
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,0)
static struct page *DRM(vm_nopage)(struct vm_area_struct *vma,
unsigned long address,
int *type) {
if (type) *type = VM_FAULT_MINOR;
return DRM(do_vm_nopage)(vma, address);
}
static struct page *DRM(vm_shm_nopage)(struct vm_area_struct *vma,
unsigned long address,
int *type) {
if (type) *type = VM_FAULT_MINOR;
return DRM(do_vm_shm_nopage)(vma, address);
}
static struct page *DRM(vm_dma_nopage)(struct vm_area_struct *vma,
unsigned long address,
int *type) {
if (type) *type = VM_FAULT_MINOR;
return DRM(do_vm_dma_nopage)(vma, address);
}
static struct page *DRM(vm_sg_nopage)(struct vm_area_struct *vma,
unsigned long address,
int *type) {
if (type) *type = VM_FAULT_MINOR;
return DRM(do_vm_sg_nopage)(vma, address);
}
#else /* LINUX_VERSION_CODE <= KERNEL_VERSION(2,6,0) */
static struct page *DRM(vm_nopage)(struct vm_area_struct *vma,
unsigned long address,
int unused) {
return DRM(do_vm_nopage)(vma, address);
}
static struct page *DRM(vm_shm_nopage)(struct vm_area_struct *vma,
unsigned long address,
int unused) {
return DRM(do_vm_shm_nopage)(vma, address);
}
static struct page *DRM(vm_dma_nopage)(struct vm_area_struct *vma,
unsigned long address,
int unused) {
return DRM(do_vm_dma_nopage)(vma, address);
}
static struct page *DRM(vm_sg_nopage)(struct vm_area_struct *vma,
unsigned long address,
int unused) {
return DRM(do_vm_sg_nopage)(vma, address);
}
#endif
/** AGP virtual memory operations */
static struct vm_operations_struct DRM(vm_ops) = {
.nopage = DRM(vm_nopage),
.open = DRM(vm_open),
.close = DRM(vm_close),
};
/** Shared virtual memory operations */
static struct vm_operations_struct DRM(vm_shm_ops) = {
.nopage = DRM(vm_shm_nopage),
.open = DRM(vm_open),
.close = DRM(vm_shm_close),
};
/** DMA virtual memory operations */
static struct vm_operations_struct DRM(vm_dma_ops) = {
.nopage = DRM(vm_dma_nopage),
.open = DRM(vm_open),
.close = DRM(vm_close),
};
/** Scatter-gather virtual memory operations */
static struct vm_operations_struct DRM(vm_sg_ops) = {
.nopage = DRM(vm_sg_nopage),
.open = DRM(vm_open),
.close = DRM(vm_close),
};
/**
* \c open method for shared virtual memory.
*
......
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